From f21e0e81d81b649ad309cedc7226f1bed72982e0 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 24 May 2011 08:12:40 +0800 Subject: regulator: Do bulk enables of regulators in parallel In order to reduce the impact of ramp times rather than enabling the regulators for a device in series use async tasks to run the actual enables. This means that the delays which the enables implement can all run in parallel, though it does mean that the order in which the supplies come on may be unstable. For super bonus fun points if any of the regulators are shared between multiple supplies on the same device (as is rather likely) then this will test our locking. Note that in this case we only delay once for each physical regulator so the threads shouldn't block each other while delaying. It'd be even nicer if we could coalesce writes to a shared enable registers in PMICs but that's definitely future work, and it may also be useful and is certainly more achievable to optimise out the parallelism if none of the regulators implement ramp delays. Signed-off-by: Mark Brown Signed-off-by: Liam Girdwood --- include/linux/regulator/consumer.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 9e87c1cb7270..26f6ea4444e3 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -122,6 +122,9 @@ struct regulator; struct regulator_bulk_data { const char *supply; struct regulator *consumer; + + /* Internal use */ + int ret; }; #if defined(CONFIG_REGULATOR) -- cgit v1.2.3 From 6e6938b6d3130305a5960c86b1a9b21e58cf6144 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sun, 6 Jun 2010 10:38:15 -0600 Subject: writeback: introduce .tagged_writepages for the WB_SYNC_NONE sync stage sync(2) is performed in two stages: the WB_SYNC_NONE sync and the WB_SYNC_ALL sync. Identify the first stage with .tagged_writepages and do livelock prevention for it, too. Jan's commit f446daaea9 ("mm: implement writeback livelock avoidance using page tagging") is a partial fix in that it only fixed the WB_SYNC_ALL phase livelock. Although ext4 is tested to no longer livelock with commit f446daaea9, it may due to some "redirty_tail() after pages_skipped" effect which is by no means a guarantee for _all_ the file systems. Note that writeback_inodes_sb() is called by not only sync(), they are treated the same because the other callers also need livelock prevention. Impact: It changes the order in which pages/inodes are synced to disk. Now in the WB_SYNC_NONE stage, it won't proceed to write the next inode until finished with the current inode. Acked-by: Jan Kara CC: Dave Chinner Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 17e7ccc322a5..3f6542ca6198 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -47,6 +47,7 @@ struct writeback_control { unsigned encountered_congestion:1; /* An output: a queue is full */ unsigned for_kupdate:1; /* A kupdate writeback */ unsigned for_background:1; /* A background writeback */ + unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */ unsigned for_reclaim:1; /* Invoked from the page allocator */ unsigned range_cyclic:1; /* range_start is cyclic */ unsigned more_io:1; /* more io to be dispatched */ -- cgit v1.2.3 From cb9bd1159c5fe8995e151fa7df10fa19f8c119cc Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Wed, 21 Jul 2010 22:50:57 -0600 Subject: writeback: introduce writeback_control.inodes_written The flusher works on dirty inodes in batches, and may quit prematurely if the batch of inodes happen to be metadata-only dirtied: in this case wbc->nr_to_write won't be decreased at all, which stands for "no pages written" but also mis-interpreted as "no progress". So introduce writeback_control.inodes_written to count the inodes get cleaned from VFS POV. A non-zero value means there are some progress on writeback, in which case more writeback can be tried. Acked-by: Jan Kara Acked-by: Mel Gorman Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 3f6542ca6198..7df9026f7129 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -34,6 +34,7 @@ struct writeback_control { long nr_to_write; /* Write this many pages, and decrement this for each page written */ long pages_skipped; /* Pages which were not written */ + long inodes_written; /* # of inodes written (at least) */ /* * For a_ops->writepages(): is start or end are non-zero then this is -- cgit v1.2.3 From f758eeabeb96f878c860e8f110f94ec8820822a9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 21 Apr 2011 18:19:44 -0600 Subject: writeback: split inode_wb_list_lock into bdi_writeback.list_lock Split the global inode_wb_list_lock into a per-bdi_writeback list_lock, as it's currently the most contended lock in the system for metadata heavy workloads. It won't help for single-filesystem workloads for which we'll need the I/O-less balance_dirty_pages, but at least we can dedicate a cpu to spinning on each bdi now for larger systems. Based on earlier patches from Nick Piggin and Dave Chinner. It reduces lock contentions to 1/4 in this test case: 10 HDD JBOD, 100 dd on each disk, XFS, 6GB ram lock_stat version 0.3 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- class name con-bounces contentions waittime-min waittime-max waittime-total acq-bounces acquisitions holdtime-min holdtime-max holdtime-total ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- vanilla 2.6.39-rc3: inode_wb_list_lock: 42590 44433 0.12 147.74 144127.35 252274 886792 0.08 121.34 917211.23 ------------------ inode_wb_list_lock 2 [] bdev_inode_switch_bdi+0x29/0x85 inode_wb_list_lock 34 [] inode_wb_list_del+0x22/0x49 inode_wb_list_lock 12893 [] __mark_inode_dirty+0x170/0x1d0 inode_wb_list_lock 10702 [] writeback_single_inode+0x16d/0x20a ------------------ inode_wb_list_lock 2 [] bdev_inode_switch_bdi+0x29/0x85 inode_wb_list_lock 19 [] inode_wb_list_del+0x22/0x49 inode_wb_list_lock 5550 [] __mark_inode_dirty+0x170/0x1d0 inode_wb_list_lock 8511 [] writeback_sb_inodes+0x10f/0x157 2.6.39-rc3 + patch: &(&wb->list_lock)->rlock: 11383 11657 0.14 151.69 40429.51 90825 527918 0.11 145.90 556843.37 ------------------------ &(&wb->list_lock)->rlock 10 [] inode_wb_list_del+0x5f/0x86 &(&wb->list_lock)->rlock 1493 [] writeback_inodes_wb+0x3d/0x150 &(&wb->list_lock)->rlock 3652 [] writeback_sb_inodes+0x123/0x16f &(&wb->list_lock)->rlock 1412 [] writeback_single_inode+0x17f/0x223 ------------------------ &(&wb->list_lock)->rlock 3 [] bdi_lock_two+0x46/0x4b &(&wb->list_lock)->rlock 6 [] inode_wb_list_del+0x5f/0x86 &(&wb->list_lock)->rlock 2061 [] __mark_inode_dirty+0x173/0x1cf &(&wb->list_lock)->rlock 2629 [] writeback_sb_inodes+0x123/0x16f hughd@google.com: fix recursive lock when bdi_lock_two() is called with new the same as old akpm@linux-foundation.org: cleanup bdev_inode_switch_bdi() comment Signed-off-by: Christoph Hellwig Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Wu Fengguang --- include/linux/backing-dev.h | 2 ++ include/linux/writeback.h | 2 -- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 96f4094b706d..47feb2c4706a 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -57,6 +57,7 @@ struct bdi_writeback { struct list_head b_dirty; /* dirty inodes */ struct list_head b_io; /* parked for writeback */ struct list_head b_more_io; /* parked for more writeback */ + spinlock_t list_lock; /* protects the b_* lists */ }; struct backing_dev_info { @@ -106,6 +107,7 @@ int bdi_writeback_thread(void *data); int bdi_has_dirty_io(struct backing_dev_info *bdi); void bdi_arm_supers_timer(void); void bdi_wakeup_thread_delayed(struct backing_dev_info *bdi); +void bdi_lock_two(struct bdi_writeback *wb1, struct bdi_writeback *wb2); extern spinlock_t bdi_lock; extern struct list_head bdi_list; diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 7df9026f7129..c2d957fb38d3 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -9,8 +9,6 @@ struct backing_dev_info; -extern spinlock_t inode_wb_list_lock; - /* * fs/fs-writeback.c */ -- cgit v1.2.3 From e185dda89d69cde142b48059413a03561f41f78a Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 23 Apr 2011 11:26:07 -0600 Subject: writeback: avoid extra sync work at enqueue time This removes writeback_control.wb_start and does more straightforward sync livelock prevention by setting .older_than_this to prevent extra inodes from being enqueued in the first place. Acked-by: Jan Kara Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index c2d957fb38d3..d8e96a480850 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -26,9 +26,6 @@ struct writeback_control { enum writeback_sync_modes sync_mode; unsigned long *older_than_this; /* If !NULL, only write back inodes older than this */ - unsigned long wb_start; /* Time writeback_inodes_wb was - called. This is needed to avoid - extra jobs and livelock */ long nr_to_write; /* Write this many pages, and decrement this for each page written */ long pages_skipped; /* Pages which were not written */ -- cgit v1.2.3 From b7a2441f9966fe3e1be960a876ab52e6029ea005 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Wed, 21 Jul 2010 22:19:51 -0600 Subject: writeback: remove writeback_control.more_io When wbc.more_io was first introduced, it indicates whether there are at least one superblock whose s_more_io contains more IO work. Now with the per-bdi writeback, it can be replaced with a simple b_more_io test. Acked-by: Jan Kara Acked-by: Mel Gorman Reviewed-by: Minchan Kim Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 1 - include/trace/events/ext4.h | 6 ++---- include/trace/events/writeback.h | 5 +---- 3 files changed, 3 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index d8e96a480850..8797b20dd22b 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -46,7 +46,6 @@ struct writeback_control { unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */ unsigned for_reclaim:1; /* Invoked from the page allocator */ unsigned range_cyclic:1; /* range_start is cyclic */ - unsigned more_io:1; /* more io to be dispatched */ }; /* diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index e09592d2f916..b225d0d8c87f 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -404,7 +404,6 @@ TRACE_EVENT(ext4_da_writepages_result, __field( int, pages_written ) __field( long, pages_skipped ) __field( int, sync_mode ) - __field( char, more_io ) __field( pgoff_t, writeback_index ) ), @@ -415,16 +414,15 @@ TRACE_EVENT(ext4_da_writepages_result, __entry->pages_written = pages_written; __entry->pages_skipped = wbc->pages_skipped; __entry->sync_mode = wbc->sync_mode; - __entry->more_io = wbc->more_io; __entry->writeback_index = inode->i_mapping->writeback_index; ), TP_printk("dev %d,%d ino %lu ret %d pages_written %d pages_skipped %ld " - " more_io %d sync_mode %d writeback_index %lu", + "sync_mode %d writeback_index %lu", MAJOR(__entry->dev), MINOR(__entry->dev), (unsigned long) __entry->ino, __entry->ret, __entry->pages_written, __entry->pages_skipped, - __entry->more_io, __entry->sync_mode, + __entry->sync_mode, (unsigned long) __entry->writeback_index) ); diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 4e249b927eaa..b2cfac5f3313 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -101,7 +101,6 @@ DECLARE_EVENT_CLASS(wbc_class, __field(int, for_background) __field(int, for_reclaim) __field(int, range_cyclic) - __field(int, more_io) __field(unsigned long, older_than_this) __field(long, range_start) __field(long, range_end) @@ -116,7 +115,6 @@ DECLARE_EVENT_CLASS(wbc_class, __entry->for_background = wbc->for_background; __entry->for_reclaim = wbc->for_reclaim; __entry->range_cyclic = wbc->range_cyclic; - __entry->more_io = wbc->more_io; __entry->older_than_this = wbc->older_than_this ? *wbc->older_than_this : 0; __entry->range_start = (long)wbc->range_start; @@ -124,7 +122,7 @@ DECLARE_EVENT_CLASS(wbc_class, ), TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d " - "bgrd=%d reclm=%d cyclic=%d more=%d older=0x%lx " + "bgrd=%d reclm=%d cyclic=%d older=0x%lx " "start=0x%lx end=0x%lx", __entry->name, __entry->nr_to_write, @@ -134,7 +132,6 @@ DECLARE_EVENT_CLASS(wbc_class, __entry->for_background, __entry->for_reclaim, __entry->range_cyclic, - __entry->more_io, __entry->older_than_this, __entry->range_start, __entry->range_end) -- cgit v1.2.3 From 846d5a091b0506b75489577cde27f39b37a192a4 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Thu, 5 May 2011 21:10:38 -0600 Subject: writeback: remove .nonblocking and .encountered_congestion Remove two unused struct writeback_control fields: .encountered_congestion (completely unused) .nonblocking (never set, checked/showed in XFS,NFS/btrfs) The .for_background check in nfs_write_inode() is also removed btw, as .for_background implies WB_SYNC_NONE. Reviewed-by: Jan Kara Proposed-by: Christoph Hellwig Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 2 -- include/trace/events/btrfs.h | 6 ++---- 2 files changed, 2 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 8797b20dd22b..2f1b512bd6e0 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -39,8 +39,6 @@ struct writeback_control { loff_t range_start; loff_t range_end; - unsigned nonblocking:1; /* Don't get stuck on request queues */ - unsigned encountered_congestion:1; /* An output: a queue is full */ unsigned for_kupdate:1; /* A kupdate writeback */ unsigned for_background:1; /* A background writeback */ unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */ diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h index 4114129f0794..b31702ac15be 100644 --- a/include/trace/events/btrfs.h +++ b/include/trace/events/btrfs.h @@ -284,7 +284,6 @@ DECLARE_EVENT_CLASS(btrfs__writepage, __field( long, pages_skipped ) __field( loff_t, range_start ) __field( loff_t, range_end ) - __field( char, nonblocking ) __field( char, for_kupdate ) __field( char, for_reclaim ) __field( char, range_cyclic ) @@ -299,7 +298,6 @@ DECLARE_EVENT_CLASS(btrfs__writepage, __entry->pages_skipped = wbc->pages_skipped; __entry->range_start = wbc->range_start; __entry->range_end = wbc->range_end; - __entry->nonblocking = wbc->nonblocking; __entry->for_kupdate = wbc->for_kupdate; __entry->for_reclaim = wbc->for_reclaim; __entry->range_cyclic = wbc->range_cyclic; @@ -310,13 +308,13 @@ DECLARE_EVENT_CLASS(btrfs__writepage, TP_printk("root = %llu(%s), ino = %lu, page_index = %lu, " "nr_to_write = %ld, pages_skipped = %ld, range_start = %llu, " - "range_end = %llu, nonblocking = %d, for_kupdate = %d, " + "range_end = %llu, for_kupdate = %d, " "for_reclaim = %d, range_cyclic = %d, writeback_index = %lu", show_root_type(__entry->root_objectid), (unsigned long)__entry->ino, __entry->index, __entry->nr_to_write, __entry->pages_skipped, __entry->range_start, __entry->range_end, - __entry->nonblocking, __entry->for_kupdate, + __entry->for_kupdate, __entry->for_reclaim, __entry->range_cyclic, (unsigned long)__entry->writeback_index) ); -- cgit v1.2.3 From 251d6a471c831e22880b3c146bb4556ddfb1dc82 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Wed, 1 Dec 2010 17:33:37 -0600 Subject: writeback: trace event writeback_single_inode It is valuable to know how the dirty inodes are iterated and their IO size. "writeback_single_inode: bdi 8:0: ino=134246746 state=I_DIRTY_SYNC|I_SYNC age=414 index=0 to_write=1024 wrote=0" - "state" reflects inode->i_state at the end of writeback_single_inode() - "index" reflects mapping->writeback_index after the ->writepages() call - "to_write" is the wbc->nr_to_write at entrance of writeback_single_inode() - "wrote" is the number of pages actually written v2: add trace event writeback_single_inode_requeue as proposed by Dave. CC: Dave Chinner Signed-off-by: Wu Fengguang --- include/trace/events/writeback.h | 70 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) (limited to 'include') diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index b2cfac5f3313..898277bc89b4 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -8,6 +8,19 @@ #include #include +#define show_inode_state(state) \ + __print_flags(state, "|", \ + {I_DIRTY_SYNC, "I_DIRTY_SYNC"}, \ + {I_DIRTY_DATASYNC, "I_DIRTY_DATASYNC"}, \ + {I_DIRTY_PAGES, "I_DIRTY_PAGES"}, \ + {I_NEW, "I_NEW"}, \ + {I_WILL_FREE, "I_WILL_FREE"}, \ + {I_FREEING, "I_FREEING"}, \ + {I_CLEAR, "I_CLEAR"}, \ + {I_SYNC, "I_SYNC"}, \ + {I_REFERENCED, "I_REFERENCED"} \ + ) + struct wb_writeback_work; DECLARE_EVENT_CLASS(writeback_work_class, @@ -184,6 +197,63 @@ DEFINE_EVENT(writeback_congest_waited_template, writeback_wait_iff_congested, TP_ARGS(usec_timeout, usec_delayed) ); +DECLARE_EVENT_CLASS(writeback_single_inode_template, + + TP_PROTO(struct inode *inode, + struct writeback_control *wbc, + unsigned long nr_to_write + ), + + TP_ARGS(inode, wbc, nr_to_write), + + TP_STRUCT__entry( + __array(char, name, 32) + __field(unsigned long, ino) + __field(unsigned long, state) + __field(unsigned long, age) + __field(unsigned long, writeback_index) + __field(long, nr_to_write) + __field(unsigned long, wrote) + ), + + TP_fast_assign( + strncpy(__entry->name, + dev_name(inode->i_mapping->backing_dev_info->dev), 32); + __entry->ino = inode->i_ino; + __entry->state = inode->i_state; + __entry->age = (jiffies - inode->dirtied_when) * + 1000 / HZ; + __entry->writeback_index = inode->i_mapping->writeback_index; + __entry->nr_to_write = nr_to_write; + __entry->wrote = nr_to_write - wbc->nr_to_write; + ), + + TP_printk("bdi %s: ino=%lu state=%s age=%lu " + "index=%lu to_write=%ld wrote=%lu", + __entry->name, + __entry->ino, + show_inode_state(__entry->state), + __entry->age, + __entry->writeback_index, + __entry->nr_to_write, + __entry->wrote + ) +); + +DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode_requeue, + TP_PROTO(struct inode *inode, + struct writeback_control *wbc, + unsigned long nr_to_write), + TP_ARGS(inode, wbc, nr_to_write) +); + +DEFINE_EVENT(writeback_single_inode_template, writeback_single_inode, + TP_PROTO(struct inode *inode, + struct writeback_control *wbc, + unsigned long nr_to_write), + TP_ARGS(inode, wbc, nr_to_write) +); + #endif /* _TRACE_WRITEBACK_H */ /* This part must be outside protection */ -- cgit v1.2.3 From e84d0a4f8e39a73003a6ec9a11b07702745f4c1f Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sat, 23 Apr 2011 12:27:27 -0600 Subject: writeback: trace event writeback_queue_io Note that it adds a little overheads to account the moved/enqueued inodes from b_dirty to b_io. The "moved" accounting may be later used to limit the number of inodes that can be moved in one shot, in order to keep spinlock hold time under control. Signed-off-by: Wu Fengguang --- include/trace/events/writeback.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'include') diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 898277bc89b4..205d14919ef2 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -162,6 +162,31 @@ DEFINE_WBC_EVENT(wbc_balance_dirty_written); DEFINE_WBC_EVENT(wbc_balance_dirty_wait); DEFINE_WBC_EVENT(wbc_writepage); +TRACE_EVENT(writeback_queue_io, + TP_PROTO(struct bdi_writeback *wb, + unsigned long *older_than_this, + int moved), + TP_ARGS(wb, older_than_this, moved), + TP_STRUCT__entry( + __array(char, name, 32) + __field(unsigned long, older) + __field(long, age) + __field(int, moved) + ), + TP_fast_assign( + strncpy(__entry->name, dev_name(wb->bdi->dev), 32); + __entry->older = older_than_this ? *older_than_this : 0; + __entry->age = older_than_this ? + (jiffies - *older_than_this) * 1000 / HZ : -1; + __entry->moved = moved; + ), + TP_printk("bdi %s: older=%lu age=%ld enqueue=%d", + __entry->name, + __entry->older, /* older_than_this in jiffies */ + __entry->age, /* older_than_this in relative milliseconds */ + __entry->moved) +); + DECLARE_EVENT_CLASS(writeback_congest_waited_template, TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), -- cgit v1.2.3 From debf9507166eede1e676d27d3298cdfb27399cb4 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 8 Jun 2011 18:19:37 +0900 Subject: serial: sh-sci: Generalize overrun handling. This consolidates all of the broken out overrun handling and ensures that we have sensible defaults per-port type, in addition to making sure that overruns are flagged appropriately in the error mask for parts that haven't explicitly disabled support for it. Signed-off-by: Paul Mundt --- include/linux/serial_sci.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'include') diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h index a2afc9fbe186..5fac3bccfd87 100644 --- a/include/linux/serial_sci.h +++ b/include/linux/serial_sci.h @@ -8,6 +8,8 @@ * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts) */ +#define SCIx_NOT_SUPPORTED (-1) + enum { SCBRR_ALGO_1, /* ((clk + 16 * bps) / (16 * bps) - 1) */ SCBRR_ALGO_2, /* ((clk + 16 * bps) / (32 * bps) - 1) */ @@ -25,6 +27,28 @@ enum { #define SCSCR_CKE1 (1 << 1) #define SCSCR_CKE0 (1 << 0) +/* SCxSR SCI */ +#define SCI_TDRE 0x80 +#define SCI_RDRF 0x40 +#define SCI_ORER 0x20 +#define SCI_FER 0x10 +#define SCI_PER 0x08 +#define SCI_TEND 0x04 + +#define SCI_DEFAULT_ERROR_MASK (SCI_PER | SCI_FER) + +/* SCxSR SCIF */ +#define SCIF_ER 0x0080 +#define SCIF_TEND 0x0040 +#define SCIF_TDFE 0x0020 +#define SCIF_BRK 0x0010 +#define SCIF_FER 0x0008 +#define SCIF_PER 0x0004 +#define SCIF_RDF 0x0002 +#define SCIF_DR 0x0001 + +#define SCIF_DEFAULT_ERROR_MASK (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK) + /* Offsets into the sci_port->irqs array */ enum { SCIx_ERI_IRQ, @@ -56,6 +80,12 @@ struct plat_sci_port { unsigned int scbrr_algo_id; /* SCBRR calculation algo */ unsigned int scscr; /* SCSCR initialization */ + /* + * Platform overrides if necessary, defaults otherwise. + */ + int overrun_bit; + unsigned int error_mask; + struct device *dma_dev; unsigned int dma_slave_tx; -- cgit v1.2.3 From 514820eb982eb85677ed2ecef9710e90e24fbdab Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Wed, 8 Jun 2011 18:51:32 +0900 Subject: serial: sh-sci: Consolidate RXD pin handling. Non-SCI parts do not have the special port reg necessary for cases where the RX and SCI pins are muxed and need to be manually polled, so these like always fall back on the normal FIFO processing paths. SH7760 is in a class in and of itself with regards to mapping its SIM card interface via the SCI port class despite not having any of the RXD lines wired up and so implicitly behaving more like a SCIF in this regard. Out of the other CPUs, some support the port check via the same block while others do it through an external SuperI/O, so it's not even possible to perform the check relative to the ioremapped cookie offset, so the separate read semantics are preserved here, too. Signed-off-by: Paul Mundt --- include/linux/serial_sci.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h index 5fac3bccfd87..ecefec7c0b67 100644 --- a/include/linux/serial_sci.h +++ b/include/linux/serial_sci.h @@ -86,6 +86,8 @@ struct plat_sci_port { int overrun_bit; unsigned int error_mask; + int port_reg; + struct device *dma_dev; unsigned int dma_slave_tx; -- cgit v1.2.3 From 3801b86aa482d26a8ae460f67fca29e016491a86 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 9 Jun 2011 16:22:22 +0100 Subject: regulator: Refactor supply implementation to work as regular consumers Currently the regulator supply implementation is somewhat complex and fragile as it doesn't look like standard consumers but is instead a parallel implementation. This causes issues with locking and reference counting. Move the implementation over to using standard consumers to address this. Rather than only notifying the supply on the first enable/disable we do so every time the regulator is enabled or disabled, simplifying locking as we don't need to hold a lock on the consumer we are about to enable. Signed-off-by: Mark Brown Signed-off-by: Liam Girdwood --- include/linux/regulator/driver.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h index 6c433b89c80d..1a80bc77517d 100644 --- a/include/linux/regulator/driver.h +++ b/include/linux/regulator/driver.h @@ -188,18 +188,16 @@ struct regulator_dev { /* lists we belong to */ struct list_head list; /* list of all regulators */ - struct list_head slist; /* list of supplied regulators */ /* lists we own */ struct list_head consumer_list; /* consumers we supply */ - struct list_head supply_list; /* regulators we supply */ struct blocking_notifier_head notifier; struct mutex mutex; /* consumer lock */ struct module *owner; struct device dev; struct regulation_constraints *constraints; - struct regulator_dev *supply; /* for tree */ + struct regulator *supply; /* for tree */ void *reg_data; /* regulator_dev data */ -- cgit v1.2.3 From 61a6976bf19a6cf5dfcf37c3536665b316f22d49 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Tue, 14 Jun 2011 12:40:19 +0900 Subject: serial: sh-sci: Abstract register maps. This takes a bit of a sledgehammer to the horribly CPU subtype ifdef-ridden header and abstracts all of the different register layouts in to distinct types which in turn can be overriden on a per-port basis, or permitted to default to the map matching the port type at probe time. In the process this ultimately fixes up inumerable bugs with mismatches on various CPU types (particularly the legacy ones that were obviously broken years ago and no one noticed) and provides a more tightly coupled and consolidated platform for extending and implementing generic features. Signed-off-by: Paul Mundt --- include/linux/serial_sci.h | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'include') diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h index ecefec7c0b67..4ca130a90ea5 100644 --- a/include/linux/serial_sci.h +++ b/include/linux/serial_sci.h @@ -58,6 +58,22 @@ enum { SCIx_NR_IRQS, }; +enum { + SCIx_PROBE_REGTYPE, + + SCIx_SCI_REGTYPE, + SCIx_IRDA_REGTYPE, + SCIx_SCIFA_REGTYPE, + SCIx_SCIFB_REGTYPE, + SCIx_SH3_SCIF_REGTYPE, + SCIx_SH4_SCIF_REGTYPE, + SCIx_SH4_SCIF_NO_SCSPTR_REGTYPE, + SCIx_SH4_SCIF_FIFODATA_REGTYPE, + SCIx_SH7705_SCIF_REGTYPE, + + SCIx_NR_REGTYPES, +}; + #define SCIx_IRQ_MUXED(irq) \ { \ [SCIx_ERI_IRQ] = (irq), \ @@ -66,8 +82,24 @@ enum { [SCIx_BRI_IRQ] = (irq), \ } +/* + * SCI register subset common for all port types. + * Not all registers will exist on all parts. + */ +enum { + SCSMR, SCBRR, SCSCR, SCxSR, + SCFCR, SCFDR, SCxTDR, SCxRDR, + SCLSR, SCTFDR, SCRFDR, SCSPTR, + + SCIx_NR_REGS, +}; + struct device; +struct plat_sci_port_ops { + void (*init_pins)(struct uart_port *, unsigned int cflag); +}; + /* * Platform device specific platform_data struct */ @@ -87,6 +119,10 @@ struct plat_sci_port { unsigned int error_mask; int port_reg; + unsigned char regshift; + unsigned char regtype; + + struct plat_sci_port_ops *ops; struct device *dma_dev; -- cgit v1.2.3 From 304eda32920b5e23f6b9bc12eb40c7dc52a464ba Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Thu, 9 Jun 2011 00:24:59 +0000 Subject: drm/gem: add hooks to notify driver when object handle is created/destroyed Nouveau is going to use these hooks to map/unmap objects from a client's private GPU address space. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie --- include/drm/drmP.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 738b3a5faa12..4912cb75ae4c 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -886,6 +886,8 @@ struct drm_driver { */ int (*gem_init_object) (struct drm_gem_object *obj); void (*gem_free_object) (struct drm_gem_object *obj); + int (*gem_open_object) (struct drm_gem_object *, struct drm_file *); + void (*gem_close_object) (struct drm_gem_object *, struct drm_file *); /* vga arb irq handler */ void (*vgaarb_irq)(struct drm_device *dev, bool state); -- cgit v1.2.3 From 0d74f86f37306da8619eb049d88ab7ee523eec9c Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Wed, 8 Jun 2011 17:06:15 +0000 Subject: ttm: Fix spelling mistakes and remove unused #ifdef . and some comments to make it easier to understand. Ackedby: Randy Dunlap [v2: Added some more updates from Randy Dunlap] Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Dave Airlie --- include/drm/ttm/ttm_bo_api.h | 3 --- include/drm/ttm/ttm_bo_driver.h | 6 +++--- include/drm/ttm/ttm_memory.h | 2 +- include/drm/ttm/ttm_object.h | 4 ++-- include/drm/ttm/ttm_page_alloc.h | 2 +- 5 files changed, 7 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 62a0e4c4ceee..42e346985186 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -662,9 +662,6 @@ extern int ttm_bo_kmap(struct ttm_buffer_object *bo, unsigned long start_page, extern void ttm_bo_kunmap(struct ttm_bo_kmap_obj *map); -#if 0 -#endif - /** * ttm_fbdev_mmap - mmap fbdev memory backed by a ttm buffer object. * diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index 09af2d746d1c..94eb1434316e 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -78,7 +78,7 @@ struct ttm_backend_func { * * Bind the backend pages into the aperture in the location * indicated by @bo_mem. This function should be able to handle - * differences between aperture- and system page sizes. + * differences between aperture and system page sizes. */ int (*bind) (struct ttm_backend *backend, struct ttm_mem_reg *bo_mem); @@ -88,7 +88,7 @@ struct ttm_backend_func { * @backend: Pointer to a struct ttm_backend. * * Unbind previously bound backend pages. This function should be - * able to handle differences between aperture- and system page sizes. + * able to handle differences between aperture and system page sizes. */ int (*unbind) (struct ttm_backend *backend); @@ -786,7 +786,7 @@ extern int ttm_bo_device_release(struct ttm_bo_device *bdev); * ttm_bo_device_init * * @bdev: A pointer to a struct ttm_bo_device to initialize. - * @mem_global: A pointer to an initialized struct ttm_mem_global. + * @glob: A pointer to an initialized struct ttm_bo_global. * @driver: A pointer to a struct ttm_bo_driver set up by the caller. * @file_page_offset: Offset into the device address space that is available * for buffer data. This ensures compatibility with other users of the diff --git a/include/drm/ttm/ttm_memory.h b/include/drm/ttm/ttm_memory.h index b199170b3c2c..26c1f78d136f 100644 --- a/include/drm/ttm/ttm_memory.h +++ b/include/drm/ttm/ttm_memory.h @@ -41,7 +41,7 @@ * @do_shrink: The callback function. * * Arguments to the do_shrink functions are intended to be passed using - * inheritance. That is, the argument class derives from struct ttm_mem_srink, + * inheritance. That is, the argument class derives from struct ttm_mem_shrink, * and can be accessed using container_of(). */ diff --git a/include/drm/ttm/ttm_object.h b/include/drm/ttm/ttm_object.h index 0d9db099978b..e46054e5255b 100644 --- a/include/drm/ttm/ttm_object.h +++ b/include/drm/ttm/ttm_object.h @@ -111,7 +111,7 @@ struct ttm_object_device; * * @ref_obj_release: A function to be called when a reference object * with another ttm_ref_type than TTM_REF_USAGE is deleted. - * this function may, for example, release a lock held by a user-space + * This function may, for example, release a lock held by a user-space * process. * * This struct is intended to be used as a base struct for objects that @@ -172,7 +172,7 @@ extern struct ttm_base_object *ttm_base_object_lookup(struct ttm_object_file /** * ttm_base_object_unref * - * @p_base: Pointer to a pointer referncing a struct ttm_base_object. + * @p_base: Pointer to a pointer referencing a struct ttm_base_object. * * Decrements the base object refcount and clears the pointer pointed to by * p_base. diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h index 8062890f725e..129de12353f1 100644 --- a/include/drm/ttm/ttm_page_alloc.h +++ b/include/drm/ttm/ttm_page_alloc.h @@ -32,7 +32,7 @@ /** * Get count number of pages from pool to pages list. * - * @pages: heado of empty linked list where pages are filled. + * @pages: head of empty linked list where pages are filled. * @flags: ttm flags for page allocation. * @cstate: ttm caching state for the page. * @count: number of pages to allocate. -- cgit v1.2.3 From 5899a723b336da241b492583d7e55f1055f8f3b3 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 17 Jun 2011 08:20:40 +0000 Subject: dmaengine: shdma: add chcr_write/read function CHCR register position is not same in all DMAC. This patch adds new "chcr_offset" to decide it. Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- include/linux/sh_dma.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h index b08cd4efa15c..41fe4c2d6481 100644 --- a/include/linux/sh_dma.h +++ b/include/linux/sh_dma.h @@ -62,6 +62,7 @@ struct sh_dmae_pdata { const unsigned int *ts_shift; int ts_shift_num; u16 dmaor_init; + unsigned int chcr_offset; }; /* DMA register */ -- cgit v1.2.3 From 67c6269e5c998b53c2c08ce2befbbe20a7b6f57f Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 17 Jun 2011 08:20:51 +0000 Subject: dmaengine: shdma: add chcr_ie_bit IE bit position on CHCR register is not same in all DMAC. This patch adds new "chcr_ie_bit" to decide it. Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- include/linux/sh_dma.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h index 41fe4c2d6481..96803aa7b6bd 100644 --- a/include/linux/sh_dma.h +++ b/include/linux/sh_dma.h @@ -63,6 +63,7 @@ struct sh_dmae_pdata { int ts_shift_num; u16 dmaor_init; unsigned int chcr_offset; + u32 chcr_ie_bit; }; /* DMA register */ -- cgit v1.2.3 From e76c3af873025f5a704d56a28882be761e15657b Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 17 Jun 2011 08:20:56 +0000 Subject: dmaengine: shdma: add dmaor_is_32bit flag Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- include/linux/sh_dma.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h index 96803aa7b6bd..f25afc61e1c6 100644 --- a/include/linux/sh_dma.h +++ b/include/linux/sh_dma.h @@ -64,6 +64,8 @@ struct sh_dmae_pdata { u16 dmaor_init; unsigned int chcr_offset; u32 chcr_ie_bit; + + unsigned int dmaor_is_32bit:1; }; /* DMA register */ -- cgit v1.2.3 From 260bf2c5f69f419b04b6861ca91565b5fb16ce48 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Fri, 17 Jun 2011 08:21:05 +0000 Subject: dmaengine: shdma: add .needs_tend_set / .no_dmars flags Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- include/linux/sh_dma.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h index f25afc61e1c6..cb2dd118cc0f 100644 --- a/include/linux/sh_dma.h +++ b/include/linux/sh_dma.h @@ -66,6 +66,8 @@ struct sh_dmae_pdata { u32 chcr_ie_bit; unsigned int dmaor_is_32bit:1; + unsigned int needs_tend_set:1; + unsigned int no_dmars:1; }; /* DMA register */ @@ -75,6 +77,8 @@ struct sh_dmae_pdata { #define CHCR 0x0C #define DMAOR 0x40 +#define TEND 0x18 /* USB-DMAC */ + /* DMAOR definitions */ #define DMAOR_AE 0x00000004 #define DMAOR_NMIF 0x00000002 -- cgit v1.2.3 From 785c4bcc0d88ff006a0b2120815a71e86ecf21ce Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Mon, 23 May 2011 18:33:01 +0200 Subject: ext3: Add fixed tracepoints This commit adds fixed tracepoints to the ext3 code. It is based on ext4 tracepoints, however due to the differences of both file systems, there are some tracepoints missing (those for delaloc and for multi-block allocator) and there are some ext3 specific as well (for reservation windows). Here is a list: ext3_free_inode ext3_request_inode ext3_allocate_inode ext3_evict_inode ext3_drop_inode ext3_mark_inode_dirty ext3_write_begin ext3_ordered_write_end ext3_writeback_write_end ext3_journalled_write_end ext3_ordered_writepage ext3_writeback_writepage ext3_journalled_writepage ext3_readpage ext3_releasepage ext3_invalidatepage ext3_discard_blocks ext3_request_blocks ext3_allocate_blocks ext3_free_blocks ext3_sync_file_enter ext3_sync_file_exit ext3_sync_fs ext3_rsv_window_add ext3_discard_reservation ext3_alloc_new_reservation ext3_reserved ext3_forget ext3_read_block_bitmap ext3_direct_IO_enter ext3_direct_IO_exit ext3_unlink_enter ext3_unlink_exit ext3_truncate_enter ext3_truncate_exit ext3_get_blocks_enter ext3_get_blocks_exit ext3_load_inode Signed-off-by: Lukas Czerner Cc: Jan Kara Signed-off-by: Jan Kara --- include/trace/events/ext3.h | 864 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 864 insertions(+) create mode 100644 include/trace/events/ext3.h (limited to 'include') diff --git a/include/trace/events/ext3.h b/include/trace/events/ext3.h new file mode 100644 index 000000000000..7b53c0573dc9 --- /dev/null +++ b/include/trace/events/ext3.h @@ -0,0 +1,864 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM ext3 + +#if !defined(_TRACE_EXT3_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_EXT3_H + +#include + +TRACE_EVENT(ext3_free_inode, + TP_PROTO(struct inode *inode), + + TP_ARGS(inode), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( umode_t, mode ) + __field( uid_t, uid ) + __field( gid_t, gid ) + __field( blkcnt_t, blocks ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->mode = inode->i_mode; + __entry->uid = inode->i_uid; + __entry->gid = inode->i_gid; + __entry->blocks = inode->i_blocks; + ), + + TP_printk("dev %d,%d ino %lu mode 0%o uid %u gid %u blocks %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->mode, __entry->uid, __entry->gid, + (unsigned long) __entry->blocks) +); + +TRACE_EVENT(ext3_request_inode, + TP_PROTO(struct inode *dir, int mode), + + TP_ARGS(dir, mode), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, dir ) + __field( umode_t, mode ) + ), + + TP_fast_assign( + __entry->dev = dir->i_sb->s_dev; + __entry->dir = dir->i_ino; + __entry->mode = mode; + ), + + TP_printk("dev %d,%d dir %lu mode 0%o", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->dir, __entry->mode) +); + +TRACE_EVENT(ext3_allocate_inode, + TP_PROTO(struct inode *inode, struct inode *dir, int mode), + + TP_ARGS(inode, dir, mode), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( ino_t, dir ) + __field( umode_t, mode ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->dir = dir->i_ino; + __entry->mode = mode; + ), + + TP_printk("dev %d,%d ino %lu dir %lu mode 0%o", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long) __entry->dir, __entry->mode) +); + +TRACE_EVENT(ext3_evict_inode, + TP_PROTO(struct inode *inode), + + TP_ARGS(inode), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( int, nlink ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->nlink = inode->i_nlink; + ), + + TP_printk("dev %d,%d ino %lu nlink %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, __entry->nlink) +); + +TRACE_EVENT(ext3_drop_inode, + TP_PROTO(struct inode *inode, int drop), + + TP_ARGS(inode, drop), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( int, drop ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->drop = drop; + ), + + TP_printk("dev %d,%d ino %lu drop %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, __entry->drop) +); + +TRACE_EVENT(ext3_mark_inode_dirty, + TP_PROTO(struct inode *inode, unsigned long IP), + + TP_ARGS(inode, IP), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field(unsigned long, ip ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->ip = IP; + ), + + TP_printk("dev %d,%d ino %lu caller %pF", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, (void *)__entry->ip) +); + +TRACE_EVENT(ext3_write_begin, + TP_PROTO(struct inode *inode, loff_t pos, unsigned int len, + unsigned int flags), + + TP_ARGS(inode, pos, len, flags), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( loff_t, pos ) + __field( unsigned int, len ) + __field( unsigned int, flags ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->pos = pos; + __entry->len = len; + __entry->flags = flags; + ), + + TP_printk("dev %d,%d ino %lu pos %llu len %u flags %u", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long long) __entry->pos, __entry->len, + __entry->flags) +); + +DECLARE_EVENT_CLASS(ext3__write_end, + TP_PROTO(struct inode *inode, loff_t pos, unsigned int len, + unsigned int copied), + + TP_ARGS(inode, pos, len, copied), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( loff_t, pos ) + __field( unsigned int, len ) + __field( unsigned int, copied ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->pos = pos; + __entry->len = len; + __entry->copied = copied; + ), + + TP_printk("dev %d,%d ino %lu pos %llu len %u copied %u", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long long) __entry->pos, __entry->len, + __entry->copied) +); + +DEFINE_EVENT(ext3__write_end, ext3_ordered_write_end, + + TP_PROTO(struct inode *inode, loff_t pos, unsigned int len, + unsigned int copied), + + TP_ARGS(inode, pos, len, copied) +); + +DEFINE_EVENT(ext3__write_end, ext3_writeback_write_end, + + TP_PROTO(struct inode *inode, loff_t pos, unsigned int len, + unsigned int copied), + + TP_ARGS(inode, pos, len, copied) +); + +DEFINE_EVENT(ext3__write_end, ext3_journalled_write_end, + + TP_PROTO(struct inode *inode, loff_t pos, unsigned int len, + unsigned int copied), + + TP_ARGS(inode, pos, len, copied) +); + +DECLARE_EVENT_CLASS(ext3__page_op, + TP_PROTO(struct page *page), + + TP_ARGS(page), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( pgoff_t, index ) + + ), + + TP_fast_assign( + __entry->index = page->index; + __entry->ino = page->mapping->host->i_ino; + __entry->dev = page->mapping->host->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %lu page_index %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, __entry->index) +); + +DEFINE_EVENT(ext3__page_op, ext3_ordered_writepage, + + TP_PROTO(struct page *page), + + TP_ARGS(page) +); + +DEFINE_EVENT(ext3__page_op, ext3_writeback_writepage, + + TP_PROTO(struct page *page), + + TP_ARGS(page) +); + +DEFINE_EVENT(ext3__page_op, ext3_journalled_writepage, + + TP_PROTO(struct page *page), + + TP_ARGS(page) +); + +DEFINE_EVENT(ext3__page_op, ext3_readpage, + + TP_PROTO(struct page *page), + + TP_ARGS(page) +); + +DEFINE_EVENT(ext3__page_op, ext3_releasepage, + + TP_PROTO(struct page *page), + + TP_ARGS(page) +); + +TRACE_EVENT(ext3_invalidatepage, + TP_PROTO(struct page *page, unsigned long offset), + + TP_ARGS(page, offset), + + TP_STRUCT__entry( + __field( pgoff_t, index ) + __field( unsigned long, offset ) + __field( ino_t, ino ) + __field( dev_t, dev ) + + ), + + TP_fast_assign( + __entry->index = page->index; + __entry->offset = offset; + __entry->ino = page->mapping->host->i_ino; + __entry->dev = page->mapping->host->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %lu page_index %lu offset %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->index, __entry->offset) +); + +TRACE_EVENT(ext3_discard_blocks, + TP_PROTO(struct super_block *sb, unsigned long blk, + unsigned long count), + + TP_ARGS(sb, blk, count), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( unsigned long, blk ) + __field( unsigned long, count ) + + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->blk = blk; + __entry->count = count; + ), + + TP_printk("dev %d,%d blk %lu count %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->blk, __entry->count) +); + +TRACE_EVENT(ext3_request_blocks, + TP_PROTO(struct inode *inode, unsigned long goal, + unsigned long count), + + TP_ARGS(inode, goal, count), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( unsigned long, count ) + __field( unsigned long, goal ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->count = count; + __entry->goal = goal; + ), + + TP_printk("dev %d,%d ino %lu count %lu goal %lu ", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->count, __entry->goal) +); + +TRACE_EVENT(ext3_allocate_blocks, + TP_PROTO(struct inode *inode, unsigned long goal, + unsigned long count, unsigned long block), + + TP_ARGS(inode, goal, count, block), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( unsigned long, block ) + __field( unsigned long, count ) + __field( unsigned long, goal ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->block = block; + __entry->count = count; + __entry->goal = goal; + ), + + TP_printk("dev %d,%d ino %lu count %lu block %lu goal %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->count, __entry->block, + __entry->goal) +); + +TRACE_EVENT(ext3_free_blocks, + TP_PROTO(struct inode *inode, unsigned long block, + unsigned long count), + + TP_ARGS(inode, block, count), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( umode_t, mode ) + __field( unsigned long, block ) + __field( unsigned long, count ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->mode = inode->i_mode; + __entry->block = block; + __entry->count = count; + ), + + TP_printk("dev %d,%d ino %lu mode 0%o block %lu count %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->mode, __entry->block, __entry->count) +); + +TRACE_EVENT(ext3_sync_file_enter, + TP_PROTO(struct file *file, int datasync), + + TP_ARGS(file, datasync), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( ino_t, parent ) + __field( int, datasync ) + ), + + TP_fast_assign( + struct dentry *dentry = file->f_path.dentry; + + __entry->dev = dentry->d_inode->i_sb->s_dev; + __entry->ino = dentry->d_inode->i_ino; + __entry->datasync = datasync; + __entry->parent = dentry->d_parent->d_inode->i_ino; + ), + + TP_printk("dev %d,%d ino %lu parent %ld datasync %d ", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long) __entry->parent, __entry->datasync) +); + +TRACE_EVENT(ext3_sync_file_exit, + TP_PROTO(struct inode *inode, int ret), + + TP_ARGS(inode, ret), + + TP_STRUCT__entry( + __field( int, ret ) + __field( ino_t, ino ) + __field( dev_t, dev ) + ), + + TP_fast_assign( + __entry->ret = ret; + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %lu ret %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->ret) +); + +TRACE_EVENT(ext3_sync_fs, + TP_PROTO(struct super_block *sb, int wait), + + TP_ARGS(sb, wait), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( int, wait ) + + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->wait = wait; + ), + + TP_printk("dev %d,%d wait %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->wait) +); + +TRACE_EVENT(ext3_rsv_window_add, + TP_PROTO(struct super_block *sb, + struct ext3_reserve_window_node *rsv_node), + + TP_ARGS(sb, rsv_node), + + TP_STRUCT__entry( + __field( unsigned long, start ) + __field( unsigned long, end ) + __field( dev_t, dev ) + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->start = rsv_node->rsv_window._rsv_start; + __entry->end = rsv_node->rsv_window._rsv_end; + ), + + TP_printk("dev %d,%d start %lu end %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->start, __entry->end) +); + +TRACE_EVENT(ext3_discard_reservation, + TP_PROTO(struct inode *inode, + struct ext3_reserve_window_node *rsv_node), + + TP_ARGS(inode, rsv_node), + + TP_STRUCT__entry( + __field( unsigned long, start ) + __field( unsigned long, end ) + __field( ino_t, ino ) + __field( dev_t, dev ) + ), + + TP_fast_assign( + __entry->start = rsv_node->rsv_window._rsv_start; + __entry->end = rsv_node->rsv_window._rsv_end; + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %lu start %lu end %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long)__entry->ino, __entry->start, + __entry->end) +); + +TRACE_EVENT(ext3_alloc_new_reservation, + TP_PROTO(struct super_block *sb, unsigned long goal), + + TP_ARGS(sb, goal), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( unsigned long, goal ) + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->goal = goal; + ), + + TP_printk("dev %d,%d goal %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->goal) +); + +TRACE_EVENT(ext3_reserved, + TP_PROTO(struct super_block *sb, unsigned long block, + struct ext3_reserve_window_node *rsv_node), + + TP_ARGS(sb, block, rsv_node), + + TP_STRUCT__entry( + __field( unsigned long, block ) + __field( unsigned long, start ) + __field( unsigned long, end ) + __field( dev_t, dev ) + ), + + TP_fast_assign( + __entry->block = block; + __entry->start = rsv_node->rsv_window._rsv_start; + __entry->end = rsv_node->rsv_window._rsv_end; + __entry->dev = sb->s_dev; + ), + + TP_printk("dev %d,%d block %lu, start %lu end %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->block, __entry->start, __entry->end) +); + +TRACE_EVENT(ext3_forget, + TP_PROTO(struct inode *inode, int is_metadata, unsigned long block), + + TP_ARGS(inode, is_metadata, block), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( ino_t, ino ) + __field( umode_t, mode ) + __field( int, is_metadata ) + __field( unsigned long, block ) + ), + + TP_fast_assign( + __entry->dev = inode->i_sb->s_dev; + __entry->ino = inode->i_ino; + __entry->mode = inode->i_mode; + __entry->is_metadata = is_metadata; + __entry->block = block; + ), + + TP_printk("dev %d,%d ino %lu mode 0%o is_metadata %d block %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->mode, __entry->is_metadata, __entry->block) +); + +TRACE_EVENT(ext3_read_block_bitmap, + TP_PROTO(struct super_block *sb, unsigned int group), + + TP_ARGS(sb, group), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( __u32, group ) + + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->group = group; + ), + + TP_printk("dev %d,%d group %u", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->group) +); + +TRACE_EVENT(ext3_direct_IO_enter, + TP_PROTO(struct inode *inode, loff_t offset, unsigned long len, int rw), + + TP_ARGS(inode, offset, len, rw), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( loff_t, pos ) + __field( unsigned long, len ) + __field( int, rw ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->pos = offset; + __entry->len = len; + __entry->rw = rw; + ), + + TP_printk("dev %d,%d ino %lu pos %llu len %lu rw %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long long) __entry->pos, __entry->len, + __entry->rw) +); + +TRACE_EVENT(ext3_direct_IO_exit, + TP_PROTO(struct inode *inode, loff_t offset, unsigned long len, + int rw, int ret), + + TP_ARGS(inode, offset, len, rw, ret), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( loff_t, pos ) + __field( unsigned long, len ) + __field( int, rw ) + __field( int, ret ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->pos = offset; + __entry->len = len; + __entry->rw = rw; + __entry->ret = ret; + ), + + TP_printk("dev %d,%d ino %lu pos %llu len %lu rw %d ret %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long long) __entry->pos, __entry->len, + __entry->rw, __entry->ret) +); + +TRACE_EVENT(ext3_unlink_enter, + TP_PROTO(struct inode *parent, struct dentry *dentry), + + TP_ARGS(parent, dentry), + + TP_STRUCT__entry( + __field( ino_t, parent ) + __field( ino_t, ino ) + __field( loff_t, size ) + __field( dev_t, dev ) + ), + + TP_fast_assign( + __entry->parent = parent->i_ino; + __entry->ino = dentry->d_inode->i_ino; + __entry->size = dentry->d_inode->i_size; + __entry->dev = dentry->d_inode->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %lu size %lld parent %ld", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + (unsigned long long)__entry->size, + (unsigned long) __entry->parent) +); + +TRACE_EVENT(ext3_unlink_exit, + TP_PROTO(struct dentry *dentry, int ret), + + TP_ARGS(dentry, ret), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( int, ret ) + ), + + TP_fast_assign( + __entry->ino = dentry->d_inode->i_ino; + __entry->dev = dentry->d_inode->i_sb->s_dev; + __entry->ret = ret; + ), + + TP_printk("dev %d,%d ino %lu ret %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->ret) +); + +DECLARE_EVENT_CLASS(ext3__truncate, + TP_PROTO(struct inode *inode), + + TP_ARGS(inode), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( blkcnt_t, blocks ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->blocks = inode->i_blocks; + ), + + TP_printk("dev %d,%d ino %lu blocks %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, (unsigned long) __entry->blocks) +); + +DEFINE_EVENT(ext3__truncate, ext3_truncate_enter, + + TP_PROTO(struct inode *inode), + + TP_ARGS(inode) +); + +DEFINE_EVENT(ext3__truncate, ext3_truncate_exit, + + TP_PROTO(struct inode *inode), + + TP_ARGS(inode) +); + +TRACE_EVENT(ext3_get_blocks_enter, + TP_PROTO(struct inode *inode, unsigned long lblk, + unsigned long len, int create), + + TP_ARGS(inode, lblk, len, create), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( unsigned long, lblk ) + __field( unsigned long, len ) + __field( int, create ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->lblk = lblk; + __entry->len = len; + __entry->create = create; + ), + + TP_printk("dev %d,%d ino %lu lblk %lu len %lu create %u", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->lblk, __entry->len, __entry->create) +); + +TRACE_EVENT(ext3_get_blocks_exit, + TP_PROTO(struct inode *inode, unsigned long lblk, + unsigned long pblk, unsigned long len, int ret), + + TP_ARGS(inode, lblk, pblk, len, ret), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + __field( unsigned long, lblk ) + __field( unsigned long, pblk ) + __field( unsigned long, len ) + __field( int, ret ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + __entry->lblk = lblk; + __entry->pblk = pblk; + __entry->len = len; + __entry->ret = ret; + ), + + TP_printk("dev %d,%d ino %lu lblk %lu pblk %lu len %lu ret %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino, + __entry->lblk, __entry->pblk, + __entry->len, __entry->ret) +); + +TRACE_EVENT(ext3_load_inode, + TP_PROTO(struct inode *inode), + + TP_ARGS(inode), + + TP_STRUCT__entry( + __field( ino_t, ino ) + __field( dev_t, dev ) + ), + + TP_fast_assign( + __entry->ino = inode->i_ino; + __entry->dev = inode->i_sb->s_dev; + ), + + TP_printk("dev %d,%d ino %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino) +); + +#endif /* _TRACE_EXT3_H */ + +/* This part must be outside protection */ +#include -- cgit v1.2.3 From 99cb1a318c37bf462c53d43f4dacb7b4896ce0c9 Mon Sep 17 00:00:00 2001 From: Lukas Czerner Date: Mon, 23 May 2011 18:33:02 +0200 Subject: jbd: Add fixed tracepoints This commit adds fixed tracepoint for jbd. It has been based on fixed tracepoints for jbd2, however there are missing those for collecting statistics, since I think that it will require more intrusive patch so I should have its own commit, if someone decide that it is needed. Also there are new tracepoints in __journal_drop_transaction() and journal_update_superblock(). The list of jbd tracepoints: jbd_checkpoint jbd_start_commit jbd_commit_locking jbd_commit_flushing jbd_commit_logging jbd_drop_transaction jbd_end_commit jbd_do_submit_data jbd_cleanup_journal_tail jbd_update_superblock_end Signed-off-by: Lukas Czerner Cc: Jan Kara Signed-off-by: Jan Kara --- include/trace/events/jbd.h | 203 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 203 insertions(+) create mode 100644 include/trace/events/jbd.h (limited to 'include') diff --git a/include/trace/events/jbd.h b/include/trace/events/jbd.h new file mode 100644 index 000000000000..aff64d82d713 --- /dev/null +++ b/include/trace/events/jbd.h @@ -0,0 +1,203 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM jbd + +#if !defined(_TRACE_JBD_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_JBD_H + +#include +#include + +TRACE_EVENT(jbd_checkpoint, + + TP_PROTO(journal_t *journal, int result), + + TP_ARGS(journal, result), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( int, result ) + ), + + TP_fast_assign( + __entry->dev = journal->j_fs_dev->bd_dev; + __entry->result = result; + ), + + TP_printk("dev %d,%d result %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->result) +); + +DECLARE_EVENT_CLASS(jbd_commit, + + TP_PROTO(journal_t *journal, transaction_t *commit_transaction), + + TP_ARGS(journal, commit_transaction), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( char, sync_commit ) + __field( int, transaction ) + ), + + TP_fast_assign( + __entry->dev = journal->j_fs_dev->bd_dev; + __entry->sync_commit = commit_transaction->t_synchronous_commit; + __entry->transaction = commit_transaction->t_tid; + ), + + TP_printk("dev %d,%d transaction %d sync %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->transaction, __entry->sync_commit) +); + +DEFINE_EVENT(jbd_commit, jbd_start_commit, + + TP_PROTO(journal_t *journal, transaction_t *commit_transaction), + + TP_ARGS(journal, commit_transaction) +); + +DEFINE_EVENT(jbd_commit, jbd_commit_locking, + + TP_PROTO(journal_t *journal, transaction_t *commit_transaction), + + TP_ARGS(journal, commit_transaction) +); + +DEFINE_EVENT(jbd_commit, jbd_commit_flushing, + + TP_PROTO(journal_t *journal, transaction_t *commit_transaction), + + TP_ARGS(journal, commit_transaction) +); + +DEFINE_EVENT(jbd_commit, jbd_commit_logging, + + TP_PROTO(journal_t *journal, transaction_t *commit_transaction), + + TP_ARGS(journal, commit_transaction) +); + +TRACE_EVENT(jbd_drop_transaction, + + TP_PROTO(journal_t *journal, transaction_t *commit_transaction), + + TP_ARGS(journal, commit_transaction), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( char, sync_commit ) + __field( int, transaction ) + ), + + TP_fast_assign( + __entry->dev = journal->j_fs_dev->bd_dev; + __entry->sync_commit = commit_transaction->t_synchronous_commit; + __entry->transaction = commit_transaction->t_tid; + ), + + TP_printk("dev %d,%d transaction %d sync %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->transaction, __entry->sync_commit) +); + +TRACE_EVENT(jbd_end_commit, + TP_PROTO(journal_t *journal, transaction_t *commit_transaction), + + TP_ARGS(journal, commit_transaction), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( char, sync_commit ) + __field( int, transaction ) + __field( int, head ) + ), + + TP_fast_assign( + __entry->dev = journal->j_fs_dev->bd_dev; + __entry->sync_commit = commit_transaction->t_synchronous_commit; + __entry->transaction = commit_transaction->t_tid; + __entry->head = journal->j_tail_sequence; + ), + + TP_printk("dev %d,%d transaction %d sync %d head %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->transaction, __entry->sync_commit, __entry->head) +); + +TRACE_EVENT(jbd_do_submit_data, + TP_PROTO(journal_t *journal, transaction_t *commit_transaction), + + TP_ARGS(journal, commit_transaction), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( char, sync_commit ) + __field( int, transaction ) + ), + + TP_fast_assign( + __entry->dev = journal->j_fs_dev->bd_dev; + __entry->sync_commit = commit_transaction->t_synchronous_commit; + __entry->transaction = commit_transaction->t_tid; + ), + + TP_printk("dev %d,%d transaction %d sync %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->transaction, __entry->sync_commit) +); + +TRACE_EVENT(jbd_cleanup_journal_tail, + + TP_PROTO(journal_t *journal, tid_t first_tid, + unsigned long block_nr, unsigned long freed), + + TP_ARGS(journal, first_tid, block_nr, freed), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( tid_t, tail_sequence ) + __field( tid_t, first_tid ) + __field(unsigned long, block_nr ) + __field(unsigned long, freed ) + ), + + TP_fast_assign( + __entry->dev = journal->j_fs_dev->bd_dev; + __entry->tail_sequence = journal->j_tail_sequence; + __entry->first_tid = first_tid; + __entry->block_nr = block_nr; + __entry->freed = freed; + ), + + TP_printk("dev %d,%d from %u to %u offset %lu freed %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->tail_sequence, __entry->first_tid, + __entry->block_nr, __entry->freed) +); + +TRACE_EVENT(jbd_update_superblock_end, + TP_PROTO(journal_t *journal, int wait), + + TP_ARGS(journal, wait), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( int, wait ) + ), + + TP_fast_assign( + __entry->dev = journal->j_fs_dev->bd_dev; + __entry->wait = wait; + ), + + TP_printk("dev %d,%d wait %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->wait) +); + +#endif /* _TRACE_JBD_H */ + +/* This part must be outside protection */ +#include -- cgit v1.2.3 From 40680f2fa4670ab35ee554822a69dda1a118f966 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Tue, 24 May 2011 22:24:47 +0200 Subject: ext3: Convert ext3 to new truncate calling convention Mostly trivial conversion. We fix a bug that IS_IMMUTABLE and IS_APPEND files could not be truncated during failed writes as we change the code. In fact the test is not needed at all because both IS_IMMUTABLE and IS_APPEND is tested in upper layers in do_sys_[f]truncate(), may_write(), etc. Signed-off-by: Jan Kara --- include/linux/ext3_fs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 5e06acf95d0f..9aaa3a84d373 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -913,7 +913,7 @@ extern void ext3_dirty_inode(struct inode *, int); extern int ext3_change_inode_journal_flag(struct inode *, int); extern int ext3_get_inode_loc(struct inode *, struct ext3_iloc *); extern int ext3_can_truncate(struct inode *inode); -extern void ext3_truncate (struct inode *); +extern void ext3_truncate(struct inode *inode); extern void ext3_set_inode_flags(struct inode *); extern void ext3_get_inode_flags(struct ext3_inode_info *); extern void ext3_set_aops(struct inode *inode); -- cgit v1.2.3 From fbcc9e624b8dbc7f740fac3906aa261b83398100 Mon Sep 17 00:00:00 2001 From: Petr Uzel Date: Tue, 31 May 2011 11:36:06 +0200 Subject: ext2: include fs.h into ext2_fs.h AC_CHECK_HEADERS([linux/ext2_fs.h]) fails with configure:34666: checking linux/ext2_fs.h usability configure:34666: gcc -std=gnu99 -c -ggdb3 -O0 -Wunreachable-code conftest.c >&5 In file included from conftest.c:406:0: /usr/include/linux/ext2_fs.h: In function 'ext2_mask_flags': /usr/include/linux/ext2_fs.h:182:21: error: 'FS_DIRSYNC_FL' undeclared (first use in this function) /usr/include/linux/ext2_fs.h:182:21: note: each undeclared identifier is reported only once for each function it appears in /usr/include/linux/ext2_fs.h:182:37: error: 'FS_TOPDIR_FL' undeclared (first use in this function) /usr/include/linux/ext2_fs.h:184:19: error: 'FS_NODUMP_FL' undeclared (first use in this function) /usr/include/linux/ext2_fs.h:184:34: error: 'FS_NOATIME_FL' undeclared (first use in this function) It's reasonable to have headers that include all necessary definitions. So fix this by including fs.h into ext2_fs.h. Signed-off-by: Petr Uzel Signed-off-by: Jan Kara --- include/linux/ext2_fs.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h index 2dfa7076e8b6..53792bf36c71 100644 --- a/include/linux/ext2_fs.h +++ b/include/linux/ext2_fs.h @@ -18,6 +18,7 @@ #include #include +#include /* * The second extended filesystem constants/structures -- cgit v1.2.3 From 9008593017069ad513cc7dc78a6c94e8dfddba31 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 1 Jun 2011 23:34:04 +0900 Subject: ext3: use proper little-endian bitops ext3_{set,clear}_bit() is defined as __test_and_{set,clear}_bit_le() for ext3. But all ext3_{set,clear}_bit() calls ignore return values. So these can be replaced with __{set,clear}_bit_le(). This changes ext3_{set,clear}_bit safely, because if someone uses these macros without noticing the change, new ext3_{set,clear}_bit don't have return value and causes compiler errors where the return value is used. This also removes unused ext3_find_first_zero_bit(). Signed-off-by: Akinobu Mita Cc: Jan Kara Cc: Andrew Morton Cc: Andreas Dilger Cc: linux-ext4@vger.kernel.org Signed-off-by: Jan Kara --- include/linux/ext3_fs.h | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 9aaa3a84d373..8f1f908eddb8 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -418,12 +418,11 @@ struct ext3_inode { #define EXT2_MOUNT_DATA_FLAGS EXT3_MOUNT_DATA_FLAGS #endif -#define ext3_set_bit __test_and_set_bit_le +#define ext3_set_bit __set_bit_le #define ext3_set_bit_atomic ext2_set_bit_atomic -#define ext3_clear_bit __test_and_clear_bit_le +#define ext3_clear_bit __clear_bit_le #define ext3_clear_bit_atomic ext2_clear_bit_atomic #define ext3_test_bit test_bit_le -#define ext3_find_first_zero_bit find_first_zero_bit_le #define ext3_find_next_zero_bit find_next_zero_bit_le /* -- cgit v1.2.3 From bb189247f35688a3353545902c56290fb7d7754a Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Fri, 24 Jun 2011 23:11:59 +0200 Subject: jbd: Fix oops in journal_remove_journal_head() journal_remove_journal_head() can oops when trying to access journal_head returned by bh2jh(). This is caused for example by the following race: TASK1 TASK2 journal_commit_transaction() ... processing t_forget list __journal_refile_buffer(jh); if (!jh->b_transaction) { jbd_unlock_bh_state(bh); journal_try_to_free_buffers() journal_grab_journal_head(bh) jbd_lock_bh_state(bh) __journal_try_to_free_buffer() journal_put_journal_head(jh) journal_remove_journal_head(bh); journal_put_journal_head() in TASK2 sees that b_jcount == 0 and buffer is not part of any transaction and thus frees journal_head before TASK1 gets to doing so. Note that even buffer_head can be released by try_to_free_buffers() after journal_put_journal_head() which adds even larger opportunity for oops (but I didn't see this happen in reality). Fix the problem by making transactions hold their own journal_head reference (in b_jcount). That way we don't have to remove journal_head explicitely via journal_remove_journal_head() and instead just remove journal_head when b_jcount drops to zero. The result of this is that [__]journal_refile_buffer(), [__]journal_unfile_buffer(), and __journal_remove_checkpoint() can free journal_head which needs modification of a few callers. Also we have to be careful because once journal_head is removed, buffer_head might be freed as well. So we have to get our own buffer_head reference where it matters. Signed-off-by: Jan Kara --- include/linux/jbd.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/jbd.h b/include/linux/jbd.h index e06965081ba5..e6a5e34bed4f 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -940,7 +940,6 @@ extern int journal_force_commit(journal_t *); */ struct journal_head *journal_add_journal_head(struct buffer_head *bh); struct journal_head *journal_grab_journal_head(struct buffer_head *bh); -void journal_remove_journal_head(struct buffer_head *bh); void journal_put_journal_head(struct journal_head *jh); /* -- cgit v1.2.3 From 4e561d388feff18e4b798cef6a1a84a2cc7f20c2 Mon Sep 17 00:00:00 2001 From: Roberto Sassu Date: Mon, 27 Jun 2011 13:45:42 +0200 Subject: encrypted-keys: add key format support This patch introduces a new parameter, called 'format', that defines the format of data stored by encrypted keys. The 'default' format identifies encrypted keys containing only the symmetric key, while other formats can be defined to support additional information. The 'format' parameter is written in the datablob produced by commands 'keyctl print' or 'keyctl pipe' and is integrity protected by the HMAC. Signed-off-by: Roberto Sassu Acked-by: Gianluca Ramunno Acked-by: David Howells Signed-off-by: Mimi Zohar --- include/keys/encrypted-type.h | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/keys/encrypted-type.h b/include/keys/encrypted-type.h index 95855017a32b..1d4541370a64 100644 --- a/include/keys/encrypted-type.h +++ b/include/keys/encrypted-type.h @@ -1,6 +1,11 @@ /* * Copyright (C) 2010 IBM Corporation - * Author: Mimi Zohar + * Copyright (C) 2010 Politecnico di Torino, Italy + * TORSEC group -- http://security.polito.it + * + * Authors: + * Mimi Zohar + * Roberto Sassu * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -15,13 +20,17 @@ struct encrypted_key_payload { struct rcu_head rcu; + char *format; /* datablob: format */ char *master_desc; /* datablob: master key name */ char *datalen; /* datablob: decrypted key length */ u8 *iv; /* datablob: iv */ u8 *encrypted_data; /* datablob: encrypted data */ unsigned short datablob_len; /* length of datablob */ unsigned short decrypted_datalen; /* decrypted data length */ - u8 decrypted_data[0]; /* decrypted data + datablob + hmac */ + unsigned short payload_datalen; /* payload data length */ + unsigned short encrypted_key_format; /* encrypted key format */ + u8 *decrypted_data; /* decrypted data */ + u8 payload_data[0]; /* payload data + datablob + hmac */ }; extern struct key_type key_type_encrypted; -- cgit v1.2.3 From f8f8527103a264b5e4ab2ce5c1743b28f3219d90 Mon Sep 17 00:00:00 2001 From: Roberto Sassu Date: Mon, 27 Jun 2011 13:45:43 +0200 Subject: eCryptfs: export global eCryptfs definitions to include/linux/ecryptfs.h Some eCryptfs specific definitions, such as the current version and the authentication token structure, are moved to the new include file 'include/linux/ecryptfs.h', in order to be available for all kernel subsystems. Signed-off-by: Roberto Sassu Acked-by: Gianluca Ramunno Acked-by: Tyler Hicks Acked-by: David Howells Signed-off-by: Mimi Zohar --- include/linux/ecryptfs.h | 113 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 113 insertions(+) create mode 100644 include/linux/ecryptfs.h (limited to 'include') diff --git a/include/linux/ecryptfs.h b/include/linux/ecryptfs.h new file mode 100644 index 000000000000..2224a8c0cb64 --- /dev/null +++ b/include/linux/ecryptfs.h @@ -0,0 +1,113 @@ +#ifndef _LINUX_ECRYPTFS_H +#define _LINUX_ECRYPTFS_H + +/* Version verification for shared data structures w/ userspace */ +#define ECRYPTFS_VERSION_MAJOR 0x00 +#define ECRYPTFS_VERSION_MINOR 0x04 +#define ECRYPTFS_SUPPORTED_FILE_VERSION 0x03 +/* These flags indicate which features are supported by the kernel + * module; userspace tools such as the mount helper read + * ECRYPTFS_VERSIONING_MASK from a sysfs handle in order to determine + * how to behave. */ +#define ECRYPTFS_VERSIONING_PASSPHRASE 0x00000001 +#define ECRYPTFS_VERSIONING_PUBKEY 0x00000002 +#define ECRYPTFS_VERSIONING_PLAINTEXT_PASSTHROUGH 0x00000004 +#define ECRYPTFS_VERSIONING_POLICY 0x00000008 +#define ECRYPTFS_VERSIONING_XATTR 0x00000010 +#define ECRYPTFS_VERSIONING_MULTKEY 0x00000020 +#define ECRYPTFS_VERSIONING_DEVMISC 0x00000040 +#define ECRYPTFS_VERSIONING_HMAC 0x00000080 +#define ECRYPTFS_VERSIONING_FILENAME_ENCRYPTION 0x00000100 +#define ECRYPTFS_VERSIONING_GCM 0x00000200 +#define ECRYPTFS_VERSIONING_MASK (ECRYPTFS_VERSIONING_PASSPHRASE \ + | ECRYPTFS_VERSIONING_PLAINTEXT_PASSTHROUGH \ + | ECRYPTFS_VERSIONING_PUBKEY \ + | ECRYPTFS_VERSIONING_XATTR \ + | ECRYPTFS_VERSIONING_MULTKEY \ + | ECRYPTFS_VERSIONING_DEVMISC \ + | ECRYPTFS_VERSIONING_FILENAME_ENCRYPTION) +#define ECRYPTFS_MAX_PASSWORD_LENGTH 64 +#define ECRYPTFS_MAX_PASSPHRASE_BYTES ECRYPTFS_MAX_PASSWORD_LENGTH +#define ECRYPTFS_SALT_SIZE 8 +#define ECRYPTFS_SALT_SIZE_HEX (ECRYPTFS_SALT_SIZE*2) +/* The original signature size is only for what is stored on disk; all + * in-memory representations are expanded hex, so it better adapted to + * be passed around or referenced on the command line */ +#define ECRYPTFS_SIG_SIZE 8 +#define ECRYPTFS_SIG_SIZE_HEX (ECRYPTFS_SIG_SIZE*2) +#define ECRYPTFS_PASSWORD_SIG_SIZE ECRYPTFS_SIG_SIZE_HEX +#define ECRYPTFS_MAX_KEY_BYTES 64 +#define ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES 512 +#define ECRYPTFS_FILE_VERSION 0x03 +#define ECRYPTFS_MAX_PKI_NAME_BYTES 16 + +#define RFC2440_CIPHER_DES3_EDE 0x02 +#define RFC2440_CIPHER_CAST_5 0x03 +#define RFC2440_CIPHER_BLOWFISH 0x04 +#define RFC2440_CIPHER_AES_128 0x07 +#define RFC2440_CIPHER_AES_192 0x08 +#define RFC2440_CIPHER_AES_256 0x09 +#define RFC2440_CIPHER_TWOFISH 0x0a +#define RFC2440_CIPHER_CAST_6 0x0b + +#define RFC2440_CIPHER_RSA 0x01 + +/** + * For convenience, we may need to pass around the encrypted session + * key between kernel and userspace because the authentication token + * may not be extractable. For example, the TPM may not release the + * private key, instead requiring the encrypted data and returning the + * decrypted data. + */ +struct ecryptfs_session_key { +#define ECRYPTFS_USERSPACE_SHOULD_TRY_TO_DECRYPT 0x00000001 +#define ECRYPTFS_USERSPACE_SHOULD_TRY_TO_ENCRYPT 0x00000002 +#define ECRYPTFS_CONTAINS_DECRYPTED_KEY 0x00000004 +#define ECRYPTFS_CONTAINS_ENCRYPTED_KEY 0x00000008 + u32 flags; + u32 encrypted_key_size; + u32 decrypted_key_size; + u8 encrypted_key[ECRYPTFS_MAX_ENCRYPTED_KEY_BYTES]; + u8 decrypted_key[ECRYPTFS_MAX_KEY_BYTES]; +}; + +struct ecryptfs_password { + u32 password_bytes; + s32 hash_algo; + u32 hash_iterations; + u32 session_key_encryption_key_bytes; +#define ECRYPTFS_PERSISTENT_PASSWORD 0x01 +#define ECRYPTFS_SESSION_KEY_ENCRYPTION_KEY_SET 0x02 + u32 flags; + /* Iterated-hash concatenation of salt and passphrase */ + u8 session_key_encryption_key[ECRYPTFS_MAX_KEY_BYTES]; + u8 signature[ECRYPTFS_PASSWORD_SIG_SIZE + 1]; + /* Always in expanded hex */ + u8 salt[ECRYPTFS_SALT_SIZE]; +}; + +enum ecryptfs_token_types {ECRYPTFS_PASSWORD, ECRYPTFS_PRIVATE_KEY}; + +struct ecryptfs_private_key { + u32 key_size; + u32 data_len; + u8 signature[ECRYPTFS_PASSWORD_SIG_SIZE + 1]; + char pki_type[ECRYPTFS_MAX_PKI_NAME_BYTES + 1]; + u8 data[]; +}; + +/* May be a password or a private key */ +struct ecryptfs_auth_tok { + u16 version; /* 8-bit major and 8-bit minor */ + u16 token_type; +#define ECRYPTFS_ENCRYPT_ONLY 0x00000001 + u32 flags; + struct ecryptfs_session_key session_key; + u8 reserved[32]; + union { + struct ecryptfs_password password; + struct ecryptfs_private_key private_key; + } token; +} __attribute__ ((packed)); + +#endif /* _LINUX_ECRYPTFS_H */ -- cgit v1.2.3 From 9174fc8f111982e024a00512c521ad8f1056fccb Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Tue, 28 Jun 2011 15:25:36 +0900 Subject: serial: sh-sci: Fix up pretty name printing for port IRQs. Presently these were all using the same static string with no regard to dev_name() and the like. This implements a bit of rework to name the IRQ dynamically, as it should have been doing all along anyways. Signed-off-by: Paul Mundt --- include/linux/serial_sci.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h index 4ca130a90ea5..8bffe9ae2ca0 100644 --- a/include/linux/serial_sci.h +++ b/include/linux/serial_sci.h @@ -56,6 +56,8 @@ enum { SCIx_TXI_IRQ, SCIx_BRI_IRQ, SCIx_NR_IRQS, + + SCIx_MUX_IRQ = SCIx_NR_IRQS, /* special case */ }; enum { @@ -82,6 +84,11 @@ enum { [SCIx_BRI_IRQ] = (irq), \ } +#define SCIx_IRQ_IS_MUXED(port) \ + ((port)->cfg->irqs[SCIx_ERI_IRQ] == \ + (port)->cfg->irqs[SCIx_RXI_IRQ]) || \ + ((port)->cfg->irqs[SCIx_ERI_IRQ] && \ + !(port)->cfg->irqs[SCIx_RXI_IRQ]) /* * SCI register subset common for all port types. * Not all registers will exist on all parts. -- cgit v1.2.3 From 3d73710880afa3d61cf57b5d4eb192e812eb7e4f Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Tue, 28 Jun 2011 10:59:12 -0700 Subject: cpufreq: expose a cpufreq_quick_get_max routine This allows drivers and other code to get the max reported CPU frequency. Initial use is for scaling ring frequency with GPU frequency in the i915 driver. Signed-off-by: Jesse Barnes Signed-off-by: Keith Packard --- include/linux/cpufreq.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 11be48e0d168..6216115c7789 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -324,11 +324,16 @@ static inline unsigned int cpufreq_get(unsigned int cpu) /* query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it */ #ifdef CONFIG_CPU_FREQ unsigned int cpufreq_quick_get(unsigned int cpu); +unsigned int cpufreq_quick_get_max(unsigned int cpu); #else static inline unsigned int cpufreq_quick_get(unsigned int cpu) { return 0; } +static inline unsigned int cpufreq_quick_get_max(unsigned int cpu) +{ + return 0; +} #endif -- cgit v1.2.3 From 24e6289c029b0cf5b4f75e12c1b66000d441c9ed Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Mon, 23 May 2011 11:51:18 +0300 Subject: OMAP: DSS2: remove extra includes from include/video/omapdss.h omapdss.h included platform_device.h and atomic.h, neither of which is needed by omapdss.h. Remove those includes from omapdss.h, and fix the affected .c files which did not include platform_device.h even though they should. Signed-off-by: Tomi Valkeinen --- include/video/omapdss.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 892b97f8e157..bb397381eca3 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -21,8 +21,6 @@ #include #include #include -#include -#include #define DISPC_IRQ_FRAMEDONE (1 << 0) #define DISPC_IRQ_VSYNC (1 << 1) -- cgit v1.2.3 From 8cff88c5da2197aa601409d4a7ce8f83f8de8190 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Sat, 30 Apr 2011 14:09:53 +0300 Subject: OMAP: DSS2: remove update_mode from omapdss Remove the whole update_mode stuff from omapdss driver. If automatic update for manual update displays is needed, it's better implemented in higher layers. Signed-off-by: Tomi Valkeinen --- include/video/omapdss.h | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'include') diff --git a/include/video/omapdss.h b/include/video/omapdss.h index bb397381eca3..388577d10ab8 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -134,12 +134,6 @@ enum omap_display_caps { OMAP_DSS_DISPLAY_CAP_TEAR_ELIM = 1 << 1, }; -enum omap_dss_update_mode { - OMAP_DSS_UPDATE_DISABLED = 0, - OMAP_DSS_UPDATE_AUTO, - OMAP_DSS_UPDATE_MANUAL, -}; - enum omap_dss_display_state { OMAP_DSS_DISPLAY_DISABLED = 0, OMAP_DSS_DISPLAY_ACTIVE, @@ -524,11 +518,6 @@ struct omap_dss_driver { int (*resume)(struct omap_dss_device *display); int (*run_test)(struct omap_dss_device *display, int test); - int (*set_update_mode)(struct omap_dss_device *dssdev, - enum omap_dss_update_mode); - enum omap_dss_update_mode (*get_update_mode)( - struct omap_dss_device *dssdev); - int (*update)(struct omap_dss_device *dssdev, u16 x, u16 y, u16 w, u16 h); int (*sync)(struct omap_dss_device *dssdev); -- cgit v1.2.3 From 3c07cae2cccc4e40ff66521701a3c8eeda8726e1 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 21 Jun 2011 09:34:30 +0300 Subject: OMAP: DSS2: Add Color Phase Rotation support Add Color Phase Rotation (CPR) support and sysfs files to enable CPR and to set the CPR coefficient matrix. CPR is enabled via manager?/cpr_enable file, and the coefficient matrix is set via manager?/cpr_coef file. The values in cpr_coef are in the following order: RR RG RB GR GG GB BR BG BB Signed-off-by: Tomi Valkeinen --- include/video/omapdss.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 388577d10ab8..c804bda059d5 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -292,6 +292,12 @@ extern const struct omap_video_timings omap_dss_pal_timings; extern const struct omap_video_timings omap_dss_ntsc_timings; #endif +struct omap_dss_cpr_coefs { + s16 rr, rg, rb; + s16 gr, gg, gb; + s16 br, bg, bb; +}; + struct omap_overlay_info { bool enabled; @@ -351,6 +357,9 @@ struct omap_overlay_manager_info { bool trans_enabled; bool alpha_enabled; + + bool cpr_enable; + struct omap_dss_cpr_coefs cpr_coefs; }; struct omap_overlay_manager { -- cgit v1.2.3 From 50d5c41cd151b21ac1dfc98f048210456ccacc20 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 1 Jun 2011 12:25:45 -0500 Subject: slub: Do not use frozen page flag but a bit in the page counters Do not use a page flag for the frozen bit. It needs to be part of the state that is handled with cmpxchg_double(). So use a bit in the counter struct in the page struct for that purpose. Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/mm_types.h | 5 +++-- include/linux/page-flags.h | 5 ----- 2 files changed, 3 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 027935c86c68..e5fb2a70518b 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -41,8 +41,9 @@ struct page { * & limit reverse map searches. */ struct { /* SLUB */ - u16 inuse; - u16 objects; + unsigned inuse:16; + unsigned objects:15; + unsigned frozen:1; }; }; union { diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 6081493db68f..20791f18f5cf 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -124,9 +124,6 @@ enum pageflags { /* SLOB */ PG_slob_free = PG_private, - - /* SLUB */ - PG_slub_frozen = PG_active, }; #ifndef __GENERATING_BOUNDS_H @@ -212,8 +209,6 @@ PAGEFLAG(SwapBacked, swapbacked) __CLEARPAGEFLAG(SwapBacked, swapbacked) __PAGEFLAG(SlobFree, slob_free) -__PAGEFLAG(SlubFrozen, slub_frozen) - /* * Private page markings that may be used by the filesystem that owns the page * for its own purposes. -- cgit v1.2.3 From fc9bb8c768abe7ae10861c3510e01a95f98d5933 Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 1 Jun 2011 12:25:48 -0500 Subject: mm: Rearrange struct page We need to be able to use cmpxchg_double on the freelist and object count field in struct page. Rearrange the fields in struct page according to doubleword entities so that the freelist pointer comes before the counters. Do the rearranging with a future in mind where we use more doubleword atomics to avoid locking of updates to flags/mapping or lru pointers. Create another union to allow access to counters in struct page as a single unsigned long value. The doublewords must be properly aligned for cmpxchg_double to work. Sadly this increases the size of page struct by one word on some architectures. But as a resultpage structs are now cacheline aligned on x86_64. Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/mm_types.h | 87 ++++++++++++++++++++++++++++++++---------------- 1 file changed, 59 insertions(+), 28 deletions(-) (limited to 'include') diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index e5fb2a70518b..3d76a433d52f 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -30,24 +30,60 @@ struct address_space; * moment. Note that we have no way to track which tasks are using * a page, though if it is a pagecache page, rmap structures can tell us * who is mapping it. + * + * The objects in struct page are organized in double word blocks in + * order to allows us to use atomic double word operations on portions + * of struct page. That is currently only used by slub but the arrangement + * allows the use of atomic double word operations on the flags/mapping + * and lru list pointers also. */ struct page { + /* First double word block */ unsigned long flags; /* Atomic flags, some possibly * updated asynchronously */ - atomic_t _count; /* Usage count, see below. */ + struct address_space *mapping; /* If low bit clear, points to + * inode address_space, or NULL. + * If page mapped as anonymous + * memory, low bit is set, and + * it points to anon_vma object: + * see PAGE_MAPPING_ANON below. + */ + /* Second double word */ union { - atomic_t _mapcount; /* Count of ptes mapped in mms, - * to show when page is mapped - * & limit reverse map searches. + struct { + pgoff_t index; /* Our offset within mapping. */ + atomic_t _mapcount; /* Count of ptes mapped in mms, + * to show when page is mapped + * & limit reverse map searches. + */ + atomic_t _count; /* Usage count, see below. */ + }; + + struct { /* SLUB cmpxchg_double area */ + void *freelist; + union { + unsigned long counters; + struct { + unsigned inuse:16; + unsigned objects:15; + unsigned frozen:1; + /* + * Kernel may make use of this field even when slub + * uses the rest of the double word! */ - struct { /* SLUB */ - unsigned inuse:16; - unsigned objects:15; - unsigned frozen:1; + atomic_t _count; + }; + }; }; }; + + /* Third double word block */ + struct list_head lru; /* Pageout list, eg. active_list + * protected by zone->lru_lock ! + */ + + /* Remainder is not double word aligned */ union { - struct { unsigned long private; /* Mapping-private opaque data: * usually used for buffer_heads * if PagePrivate set; used for @@ -55,27 +91,13 @@ struct page { * indicates order in the buddy * system if PG_buddy is set. */ - struct address_space *mapping; /* If low bit clear, points to - * inode address_space, or NULL. - * If page mapped as anonymous - * memory, low bit is set, and - * it points to anon_vma object: - * see PAGE_MAPPING_ANON below. - */ - }; #if USE_SPLIT_PTLOCKS - spinlock_t ptl; + spinlock_t ptl; #endif - struct kmem_cache *slab; /* SLUB: Pointer to slab */ - struct page *first_page; /* Compound tail pages */ + struct kmem_cache *slab; /* SLUB: Pointer to slab */ + struct page *first_page; /* Compound tail pages */ }; - union { - pgoff_t index; /* Our offset within mapping. */ - void *freelist; /* SLUB: freelist req. slab lock */ - }; - struct list_head lru; /* Pageout list, eg. active_list - * protected by zone->lru_lock ! - */ + /* * On machines where all RAM is mapped into kernel address space, * we can simply calculate the virtual address. On machines with @@ -101,7 +123,16 @@ struct page { */ void *shadow; #endif -}; +} +/* + * If another subsystem starts using the double word pairing for atomic + * operations on struct page then it must change the #if to ensure + * proper alignment of the page struct. + */ +#if defined(CONFIG_SLUB) && defined(CONFIG_CMPXCHG_LOCAL) + __attribute__((__aligned__(2*sizeof(unsigned long)))) +#endif +; typedef unsigned long __nocast vm_flags_t; -- cgit v1.2.3 From b789ef518b2a7231b0668c813f677cee528a9d3f Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 1 Jun 2011 12:25:49 -0500 Subject: slub: Add cmpxchg_double_slab() Add a function that operates on the second doubleword in the page struct and manipulates the object counters, the freelist and the frozen attribute. Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/slub_def.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index c8668d161dd8..b42715294147 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -33,6 +33,7 @@ enum stat_item { DEACTIVATE_REMOTE_FREES,/* Slab contained remotely freed objects */ ORDER_FALLBACK, /* Number of times fallback was necessary */ CMPXCHG_DOUBLE_CPU_FAIL,/* Failure of this_cpu_cmpxchg_double */ + CMPXCHG_DOUBLE_FAIL, /* Number of times that cmpxchg double did not match */ NR_SLUB_STAT_ITEMS }; struct kmem_cache_cpu { -- cgit v1.2.3 From e36a2652d7d1ad97f7636a39bdd8654d296cc36b Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 1 Jun 2011 12:25:57 -0500 Subject: slub: Add statistics for the case that the current slab does not match the node Slub reloads the per cpu slab if the page does not satisfy the NUMA condition. Track those reloads since doing so has a performance impact. Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/slub_def.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index b42715294147..5b228b785377 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -24,6 +24,7 @@ enum stat_item { ALLOC_FROM_PARTIAL, /* Cpu slab acquired from partial list */ ALLOC_SLAB, /* Cpu slab acquired from page allocator */ ALLOC_REFILL, /* Refill cpu slab from slab freelist */ + ALLOC_NODE_MISMATCH, /* Switching cpu slab */ FREE_SLAB, /* Slab freed to the page allocator */ CPUSLAB_FLUSH, /* Abandoning of the cpu slab */ DEACTIVATE_FULL, /* Cpu slab was full when deactivated */ -- cgit v1.2.3 From 03e404af26dc2ea0d278d7a342de0aab394793ce Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 1 Jun 2011 12:25:58 -0500 Subject: slub: fast release on full slab Make deactivation occur implicitly while checking out the current freelist. This avoids one cmpxchg operation on a slab that is now fully in use. Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/slub_def.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index 5b228b785377..71441f89729b 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -32,6 +32,7 @@ enum stat_item { DEACTIVATE_TO_HEAD, /* Cpu slab was moved to the head of partials */ DEACTIVATE_TO_TAIL, /* Cpu slab was moved to the tail of partials */ DEACTIVATE_REMOTE_FREES,/* Slab contained remotely freed objects */ + DEACTIVATE_BYPASS, /* Implicit deactivation */ ORDER_FALLBACK, /* Number of times fallback was necessary */ CMPXCHG_DOUBLE_CPU_FAIL,/* Failure of this_cpu_cmpxchg_double */ CMPXCHG_DOUBLE_FAIL, /* Number of times that cmpxchg double did not match */ -- cgit v1.2.3 From 57fe7251f5bfc4332f24479376de48a1e8ca6211 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 31 May 2011 12:02:49 +0300 Subject: MFD: twl4030-codec -> twl4030-audio: Rename the driver Rename the driver, and header file from twl4030-codec to twl4030-audio. To avoid breakage change depending drivers at the same time. Signed-off-by: Peter Ujfalusi CC: Misael Lopez Cruz Acked-by: Samuel Ortiz --- include/linux/mfd/twl4030-audio.h | 272 ++++++++++++++++++++++++++++++++++++++ include/linux/mfd/twl4030-codec.h | 272 -------------------------------------- 2 files changed, 272 insertions(+), 272 deletions(-) create mode 100644 include/linux/mfd/twl4030-audio.h delete mode 100644 include/linux/mfd/twl4030-codec.h (limited to 'include') diff --git a/include/linux/mfd/twl4030-audio.h b/include/linux/mfd/twl4030-audio.h new file mode 100644 index 000000000000..3d22b72df076 --- /dev/null +++ b/include/linux/mfd/twl4030-audio.h @@ -0,0 +1,272 @@ +/* + * MFD driver for twl4030 audio submodule + * + * Author: Peter Ujfalusi + * + * Copyright: (C) 2009 Nokia Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __TWL4030_CODEC_H__ +#define __TWL4030_CODEC_H__ + +/* Codec registers */ +#define TWL4030_REG_CODEC_MODE 0x01 +#define TWL4030_REG_OPTION 0x02 +#define TWL4030_REG_UNKNOWN 0x03 +#define TWL4030_REG_MICBIAS_CTL 0x04 +#define TWL4030_REG_ANAMICL 0x05 +#define TWL4030_REG_ANAMICR 0x06 +#define TWL4030_REG_AVADC_CTL 0x07 +#define TWL4030_REG_ADCMICSEL 0x08 +#define TWL4030_REG_DIGMIXING 0x09 +#define TWL4030_REG_ATXL1PGA 0x0A +#define TWL4030_REG_ATXR1PGA 0x0B +#define TWL4030_REG_AVTXL2PGA 0x0C +#define TWL4030_REG_AVTXR2PGA 0x0D +#define TWL4030_REG_AUDIO_IF 0x0E +#define TWL4030_REG_VOICE_IF 0x0F +#define TWL4030_REG_ARXR1PGA 0x10 +#define TWL4030_REG_ARXL1PGA 0x11 +#define TWL4030_REG_ARXR2PGA 0x12 +#define TWL4030_REG_ARXL2PGA 0x13 +#define TWL4030_REG_VRXPGA 0x14 +#define TWL4030_REG_VSTPGA 0x15 +#define TWL4030_REG_VRX2ARXPGA 0x16 +#define TWL4030_REG_AVDAC_CTL 0x17 +#define TWL4030_REG_ARX2VTXPGA 0x18 +#define TWL4030_REG_ARXL1_APGA_CTL 0x19 +#define TWL4030_REG_ARXR1_APGA_CTL 0x1A +#define TWL4030_REG_ARXL2_APGA_CTL 0x1B +#define TWL4030_REG_ARXR2_APGA_CTL 0x1C +#define TWL4030_REG_ATX2ARXPGA 0x1D +#define TWL4030_REG_BT_IF 0x1E +#define TWL4030_REG_BTPGA 0x1F +#define TWL4030_REG_BTSTPGA 0x20 +#define TWL4030_REG_EAR_CTL 0x21 +#define TWL4030_REG_HS_SEL 0x22 +#define TWL4030_REG_HS_GAIN_SET 0x23 +#define TWL4030_REG_HS_POPN_SET 0x24 +#define TWL4030_REG_PREDL_CTL 0x25 +#define TWL4030_REG_PREDR_CTL 0x26 +#define TWL4030_REG_PRECKL_CTL 0x27 +#define TWL4030_REG_PRECKR_CTL 0x28 +#define TWL4030_REG_HFL_CTL 0x29 +#define TWL4030_REG_HFR_CTL 0x2A +#define TWL4030_REG_ALC_CTL 0x2B +#define TWL4030_REG_ALC_SET1 0x2C +#define TWL4030_REG_ALC_SET2 0x2D +#define TWL4030_REG_BOOST_CTL 0x2E +#define TWL4030_REG_SOFTVOL_CTL 0x2F +#define TWL4030_REG_DTMF_FREQSEL 0x30 +#define TWL4030_REG_DTMF_TONEXT1H 0x31 +#define TWL4030_REG_DTMF_TONEXT1L 0x32 +#define TWL4030_REG_DTMF_TONEXT2H 0x33 +#define TWL4030_REG_DTMF_TONEXT2L 0x34 +#define TWL4030_REG_DTMF_TONOFF 0x35 +#define TWL4030_REG_DTMF_WANONOFF 0x36 +#define TWL4030_REG_I2S_RX_SCRAMBLE_H 0x37 +#define TWL4030_REG_I2S_RX_SCRAMBLE_M 0x38 +#define TWL4030_REG_I2S_RX_SCRAMBLE_L 0x39 +#define TWL4030_REG_APLL_CTL 0x3A +#define TWL4030_REG_DTMF_CTL 0x3B +#define TWL4030_REG_DTMF_PGA_CTL2 0x3C +#define TWL4030_REG_DTMF_PGA_CTL1 0x3D +#define TWL4030_REG_MISC_SET_1 0x3E +#define TWL4030_REG_PCMBTMUX 0x3F +#define TWL4030_REG_RX_PATH_SEL 0x43 +#define TWL4030_REG_VDL_APGA_CTL 0x44 +#define TWL4030_REG_VIBRA_CTL 0x45 +#define TWL4030_REG_VIBRA_SET 0x46 +#define TWL4030_REG_VIBRA_PWM_SET 0x47 +#define TWL4030_REG_ANAMIC_GAIN 0x48 +#define TWL4030_REG_MISC_SET_2 0x49 + +/* Bitfield Definitions */ + +/* TWL4030_CODEC_MODE (0x01) Fields */ +#define TWL4030_APLL_RATE 0xF0 +#define TWL4030_APLL_RATE_8000 0x00 +#define TWL4030_APLL_RATE_11025 0x10 +#define TWL4030_APLL_RATE_12000 0x20 +#define TWL4030_APLL_RATE_16000 0x40 +#define TWL4030_APLL_RATE_22050 0x50 +#define TWL4030_APLL_RATE_24000 0x60 +#define TWL4030_APLL_RATE_32000 0x80 +#define TWL4030_APLL_RATE_44100 0x90 +#define TWL4030_APLL_RATE_48000 0xA0 +#define TWL4030_APLL_RATE_96000 0xE0 +#define TWL4030_SEL_16K 0x08 +#define TWL4030_CODECPDZ 0x02 +#define TWL4030_OPT_MODE 0x01 +#define TWL4030_OPTION_1 (1 << 0) +#define TWL4030_OPTION_2 (0 << 0) + +/* TWL4030_OPTION (0x02) Fields */ +#define TWL4030_ATXL1_EN (1 << 0) +#define TWL4030_ATXR1_EN (1 << 1) +#define TWL4030_ATXL2_VTXL_EN (1 << 2) +#define TWL4030_ATXR2_VTXR_EN (1 << 3) +#define TWL4030_ARXL1_VRX_EN (1 << 4) +#define TWL4030_ARXR1_EN (1 << 5) +#define TWL4030_ARXL2_EN (1 << 6) +#define TWL4030_ARXR2_EN (1 << 7) + +/* TWL4030_REG_MICBIAS_CTL (0x04) Fields */ +#define TWL4030_MICBIAS2_CTL 0x40 +#define TWL4030_MICBIAS1_CTL 0x20 +#define TWL4030_HSMICBIAS_EN 0x04 +#define TWL4030_MICBIAS2_EN 0x02 +#define TWL4030_MICBIAS1_EN 0x01 + +/* ANAMICL (0x05) Fields */ +#define TWL4030_CNCL_OFFSET_START 0x80 +#define TWL4030_OFFSET_CNCL_SEL 0x60 +#define TWL4030_OFFSET_CNCL_SEL_ARX1 0x00 +#define TWL4030_OFFSET_CNCL_SEL_ARX2 0x20 +#define TWL4030_OFFSET_CNCL_SEL_VRX 0x40 +#define TWL4030_OFFSET_CNCL_SEL_ALL 0x60 +#define TWL4030_MICAMPL_EN 0x10 +#define TWL4030_CKMIC_EN 0x08 +#define TWL4030_AUXL_EN 0x04 +#define TWL4030_HSMIC_EN 0x02 +#define TWL4030_MAINMIC_EN 0x01 + +/* ANAMICR (0x06) Fields */ +#define TWL4030_MICAMPR_EN 0x10 +#define TWL4030_AUXR_EN 0x04 +#define TWL4030_SUBMIC_EN 0x01 + +/* AVADC_CTL (0x07) Fields */ +#define TWL4030_ADCL_EN 0x08 +#define TWL4030_AVADC_CLK_PRIORITY 0x04 +#define TWL4030_ADCR_EN 0x02 + +/* TWL4030_REG_ADCMICSEL (0x08) Fields */ +#define TWL4030_DIGMIC1_EN 0x08 +#define TWL4030_TX2IN_SEL 0x04 +#define TWL4030_DIGMIC0_EN 0x02 +#define TWL4030_TX1IN_SEL 0x01 + +/* AUDIO_IF (0x0E) Fields */ +#define TWL4030_AIF_SLAVE_EN 0x80 +#define TWL4030_DATA_WIDTH 0x60 +#define TWL4030_DATA_WIDTH_16S_16W 0x00 +#define TWL4030_DATA_WIDTH_32S_16W 0x40 +#define TWL4030_DATA_WIDTH_32S_24W 0x60 +#define TWL4030_AIF_FORMAT 0x18 +#define TWL4030_AIF_FORMAT_CODEC 0x00 +#define TWL4030_AIF_FORMAT_LEFT 0x08 +#define TWL4030_AIF_FORMAT_RIGHT 0x10 +#define TWL4030_AIF_FORMAT_TDM 0x18 +#define TWL4030_AIF_TRI_EN 0x04 +#define TWL4030_CLK256FS_EN 0x02 +#define TWL4030_AIF_EN 0x01 + +/* VOICE_IF (0x0F) Fields */ +#define TWL4030_VIF_SLAVE_EN 0x80 +#define TWL4030_VIF_DIN_EN 0x40 +#define TWL4030_VIF_DOUT_EN 0x20 +#define TWL4030_VIF_SWAP 0x10 +#define TWL4030_VIF_FORMAT 0x08 +#define TWL4030_VIF_TRI_EN 0x04 +#define TWL4030_VIF_SUB_EN 0x02 +#define TWL4030_VIF_EN 0x01 + +/* EAR_CTL (0x21) */ +#define TWL4030_EAR_GAIN 0x30 + +/* HS_GAIN_SET (0x23) Fields */ +#define TWL4030_HSR_GAIN 0x0C +#define TWL4030_HSR_GAIN_PWR_DOWN 0x00 +#define TWL4030_HSR_GAIN_PLUS_6DB 0x04 +#define TWL4030_HSR_GAIN_0DB 0x08 +#define TWL4030_HSR_GAIN_MINUS_6DB 0x0C +#define TWL4030_HSL_GAIN 0x03 +#define TWL4030_HSL_GAIN_PWR_DOWN 0x00 +#define TWL4030_HSL_GAIN_PLUS_6DB 0x01 +#define TWL4030_HSL_GAIN_0DB 0x02 +#define TWL4030_HSL_GAIN_MINUS_6DB 0x03 + +/* HS_POPN_SET (0x24) Fields */ +#define TWL4030_VMID_EN 0x40 +#define TWL4030_EXTMUTE 0x20 +#define TWL4030_RAMP_DELAY 0x1C +#define TWL4030_RAMP_DELAY_20MS 0x00 +#define TWL4030_RAMP_DELAY_40MS 0x04 +#define TWL4030_RAMP_DELAY_81MS 0x08 +#define TWL4030_RAMP_DELAY_161MS 0x0C +#define TWL4030_RAMP_DELAY_323MS 0x10 +#define TWL4030_RAMP_DELAY_645MS 0x14 +#define TWL4030_RAMP_DELAY_1291MS 0x18 +#define TWL4030_RAMP_DELAY_2581MS 0x1C +#define TWL4030_RAMP_EN 0x02 + +/* PREDL_CTL (0x25) */ +#define TWL4030_PREDL_GAIN 0x30 + +/* PREDR_CTL (0x26) */ +#define TWL4030_PREDR_GAIN 0x30 + +/* PRECKL_CTL (0x27) */ +#define TWL4030_PRECKL_GAIN 0x30 + +/* PRECKR_CTL (0x28) */ +#define TWL4030_PRECKR_GAIN 0x30 + +/* HFL_CTL (0x29, 0x2A) Fields */ +#define TWL4030_HF_CTL_HB_EN 0x04 +#define TWL4030_HF_CTL_LOOP_EN 0x08 +#define TWL4030_HF_CTL_RAMP_EN 0x10 +#define TWL4030_HF_CTL_REF_EN 0x20 + +/* APLL_CTL (0x3A) Fields */ +#define TWL4030_APLL_EN 0x10 +#define TWL4030_APLL_INFREQ 0x0F +#define TWL4030_APLL_INFREQ_19200KHZ 0x05 +#define TWL4030_APLL_INFREQ_26000KHZ 0x06 +#define TWL4030_APLL_INFREQ_38400KHZ 0x0F + +/* REG_MISC_SET_1 (0x3E) Fields */ +#define TWL4030_CLK64_EN 0x80 +#define TWL4030_SCRAMBLE_EN 0x40 +#define TWL4030_FMLOOP_EN 0x20 +#define TWL4030_SMOOTH_ANAVOL_EN 0x02 +#define TWL4030_DIGMIC_LR_SWAP_EN 0x01 + +/* VIBRA_CTL (0x45) */ +#define TWL4030_VIBRA_EN 0x01 +#define TWL4030_VIBRA_DIR 0x02 +#define TWL4030_VIBRA_AUDIO_SEL_L1 (0x00 << 2) +#define TWL4030_VIBRA_AUDIO_SEL_R1 (0x01 << 2) +#define TWL4030_VIBRA_AUDIO_SEL_L2 (0x02 << 2) +#define TWL4030_VIBRA_AUDIO_SEL_R2 (0x03 << 2) +#define TWL4030_VIBRA_SEL 0x10 +#define TWL4030_VIBRA_DIR_SEL 0x20 + +/* TWL4030 codec resource IDs */ +enum twl4030_audio_res { + TWL4030_AUDIO_RES_POWER = 0, + TWL4030_AUDIO_RES_APLL, + TWL4030_AUDIO_RES_MAX, +}; + +int twl4030_audio_disable_resource(enum twl4030_audio_res id); +int twl4030_audio_enable_resource(enum twl4030_audio_res id); +unsigned int twl4030_audio_get_mclk(void); + +#endif /* End of __TWL4030_CODEC_H__ */ diff --git a/include/linux/mfd/twl4030-codec.h b/include/linux/mfd/twl4030-codec.h deleted file mode 100644 index 5cc16bbd1da1..000000000000 --- a/include/linux/mfd/twl4030-codec.h +++ /dev/null @@ -1,272 +0,0 @@ -/* - * MFD driver for twl4030 codec submodule - * - * Author: Peter Ujfalusi - * - * Copyright: (C) 2009 Nokia Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - * - */ - -#ifndef __TWL4030_CODEC_H__ -#define __TWL4030_CODEC_H__ - -/* Codec registers */ -#define TWL4030_REG_CODEC_MODE 0x01 -#define TWL4030_REG_OPTION 0x02 -#define TWL4030_REG_UNKNOWN 0x03 -#define TWL4030_REG_MICBIAS_CTL 0x04 -#define TWL4030_REG_ANAMICL 0x05 -#define TWL4030_REG_ANAMICR 0x06 -#define TWL4030_REG_AVADC_CTL 0x07 -#define TWL4030_REG_ADCMICSEL 0x08 -#define TWL4030_REG_DIGMIXING 0x09 -#define TWL4030_REG_ATXL1PGA 0x0A -#define TWL4030_REG_ATXR1PGA 0x0B -#define TWL4030_REG_AVTXL2PGA 0x0C -#define TWL4030_REG_AVTXR2PGA 0x0D -#define TWL4030_REG_AUDIO_IF 0x0E -#define TWL4030_REG_VOICE_IF 0x0F -#define TWL4030_REG_ARXR1PGA 0x10 -#define TWL4030_REG_ARXL1PGA 0x11 -#define TWL4030_REG_ARXR2PGA 0x12 -#define TWL4030_REG_ARXL2PGA 0x13 -#define TWL4030_REG_VRXPGA 0x14 -#define TWL4030_REG_VSTPGA 0x15 -#define TWL4030_REG_VRX2ARXPGA 0x16 -#define TWL4030_REG_AVDAC_CTL 0x17 -#define TWL4030_REG_ARX2VTXPGA 0x18 -#define TWL4030_REG_ARXL1_APGA_CTL 0x19 -#define TWL4030_REG_ARXR1_APGA_CTL 0x1A -#define TWL4030_REG_ARXL2_APGA_CTL 0x1B -#define TWL4030_REG_ARXR2_APGA_CTL 0x1C -#define TWL4030_REG_ATX2ARXPGA 0x1D -#define TWL4030_REG_BT_IF 0x1E -#define TWL4030_REG_BTPGA 0x1F -#define TWL4030_REG_BTSTPGA 0x20 -#define TWL4030_REG_EAR_CTL 0x21 -#define TWL4030_REG_HS_SEL 0x22 -#define TWL4030_REG_HS_GAIN_SET 0x23 -#define TWL4030_REG_HS_POPN_SET 0x24 -#define TWL4030_REG_PREDL_CTL 0x25 -#define TWL4030_REG_PREDR_CTL 0x26 -#define TWL4030_REG_PRECKL_CTL 0x27 -#define TWL4030_REG_PRECKR_CTL 0x28 -#define TWL4030_REG_HFL_CTL 0x29 -#define TWL4030_REG_HFR_CTL 0x2A -#define TWL4030_REG_ALC_CTL 0x2B -#define TWL4030_REG_ALC_SET1 0x2C -#define TWL4030_REG_ALC_SET2 0x2D -#define TWL4030_REG_BOOST_CTL 0x2E -#define TWL4030_REG_SOFTVOL_CTL 0x2F -#define TWL4030_REG_DTMF_FREQSEL 0x30 -#define TWL4030_REG_DTMF_TONEXT1H 0x31 -#define TWL4030_REG_DTMF_TONEXT1L 0x32 -#define TWL4030_REG_DTMF_TONEXT2H 0x33 -#define TWL4030_REG_DTMF_TONEXT2L 0x34 -#define TWL4030_REG_DTMF_TONOFF 0x35 -#define TWL4030_REG_DTMF_WANONOFF 0x36 -#define TWL4030_REG_I2S_RX_SCRAMBLE_H 0x37 -#define TWL4030_REG_I2S_RX_SCRAMBLE_M 0x38 -#define TWL4030_REG_I2S_RX_SCRAMBLE_L 0x39 -#define TWL4030_REG_APLL_CTL 0x3A -#define TWL4030_REG_DTMF_CTL 0x3B -#define TWL4030_REG_DTMF_PGA_CTL2 0x3C -#define TWL4030_REG_DTMF_PGA_CTL1 0x3D -#define TWL4030_REG_MISC_SET_1 0x3E -#define TWL4030_REG_PCMBTMUX 0x3F -#define TWL4030_REG_RX_PATH_SEL 0x43 -#define TWL4030_REG_VDL_APGA_CTL 0x44 -#define TWL4030_REG_VIBRA_CTL 0x45 -#define TWL4030_REG_VIBRA_SET 0x46 -#define TWL4030_REG_VIBRA_PWM_SET 0x47 -#define TWL4030_REG_ANAMIC_GAIN 0x48 -#define TWL4030_REG_MISC_SET_2 0x49 - -/* Bitfield Definitions */ - -/* TWL4030_CODEC_MODE (0x01) Fields */ -#define TWL4030_APLL_RATE 0xF0 -#define TWL4030_APLL_RATE_8000 0x00 -#define TWL4030_APLL_RATE_11025 0x10 -#define TWL4030_APLL_RATE_12000 0x20 -#define TWL4030_APLL_RATE_16000 0x40 -#define TWL4030_APLL_RATE_22050 0x50 -#define TWL4030_APLL_RATE_24000 0x60 -#define TWL4030_APLL_RATE_32000 0x80 -#define TWL4030_APLL_RATE_44100 0x90 -#define TWL4030_APLL_RATE_48000 0xA0 -#define TWL4030_APLL_RATE_96000 0xE0 -#define TWL4030_SEL_16K 0x08 -#define TWL4030_CODECPDZ 0x02 -#define TWL4030_OPT_MODE 0x01 -#define TWL4030_OPTION_1 (1 << 0) -#define TWL4030_OPTION_2 (0 << 0) - -/* TWL4030_OPTION (0x02) Fields */ -#define TWL4030_ATXL1_EN (1 << 0) -#define TWL4030_ATXR1_EN (1 << 1) -#define TWL4030_ATXL2_VTXL_EN (1 << 2) -#define TWL4030_ATXR2_VTXR_EN (1 << 3) -#define TWL4030_ARXL1_VRX_EN (1 << 4) -#define TWL4030_ARXR1_EN (1 << 5) -#define TWL4030_ARXL2_EN (1 << 6) -#define TWL4030_ARXR2_EN (1 << 7) - -/* TWL4030_REG_MICBIAS_CTL (0x04) Fields */ -#define TWL4030_MICBIAS2_CTL 0x40 -#define TWL4030_MICBIAS1_CTL 0x20 -#define TWL4030_HSMICBIAS_EN 0x04 -#define TWL4030_MICBIAS2_EN 0x02 -#define TWL4030_MICBIAS1_EN 0x01 - -/* ANAMICL (0x05) Fields */ -#define TWL4030_CNCL_OFFSET_START 0x80 -#define TWL4030_OFFSET_CNCL_SEL 0x60 -#define TWL4030_OFFSET_CNCL_SEL_ARX1 0x00 -#define TWL4030_OFFSET_CNCL_SEL_ARX2 0x20 -#define TWL4030_OFFSET_CNCL_SEL_VRX 0x40 -#define TWL4030_OFFSET_CNCL_SEL_ALL 0x60 -#define TWL4030_MICAMPL_EN 0x10 -#define TWL4030_CKMIC_EN 0x08 -#define TWL4030_AUXL_EN 0x04 -#define TWL4030_HSMIC_EN 0x02 -#define TWL4030_MAINMIC_EN 0x01 - -/* ANAMICR (0x06) Fields */ -#define TWL4030_MICAMPR_EN 0x10 -#define TWL4030_AUXR_EN 0x04 -#define TWL4030_SUBMIC_EN 0x01 - -/* AVADC_CTL (0x07) Fields */ -#define TWL4030_ADCL_EN 0x08 -#define TWL4030_AVADC_CLK_PRIORITY 0x04 -#define TWL4030_ADCR_EN 0x02 - -/* TWL4030_REG_ADCMICSEL (0x08) Fields */ -#define TWL4030_DIGMIC1_EN 0x08 -#define TWL4030_TX2IN_SEL 0x04 -#define TWL4030_DIGMIC0_EN 0x02 -#define TWL4030_TX1IN_SEL 0x01 - -/* AUDIO_IF (0x0E) Fields */ -#define TWL4030_AIF_SLAVE_EN 0x80 -#define TWL4030_DATA_WIDTH 0x60 -#define TWL4030_DATA_WIDTH_16S_16W 0x00 -#define TWL4030_DATA_WIDTH_32S_16W 0x40 -#define TWL4030_DATA_WIDTH_32S_24W 0x60 -#define TWL4030_AIF_FORMAT 0x18 -#define TWL4030_AIF_FORMAT_CODEC 0x00 -#define TWL4030_AIF_FORMAT_LEFT 0x08 -#define TWL4030_AIF_FORMAT_RIGHT 0x10 -#define TWL4030_AIF_FORMAT_TDM 0x18 -#define TWL4030_AIF_TRI_EN 0x04 -#define TWL4030_CLK256FS_EN 0x02 -#define TWL4030_AIF_EN 0x01 - -/* VOICE_IF (0x0F) Fields */ -#define TWL4030_VIF_SLAVE_EN 0x80 -#define TWL4030_VIF_DIN_EN 0x40 -#define TWL4030_VIF_DOUT_EN 0x20 -#define TWL4030_VIF_SWAP 0x10 -#define TWL4030_VIF_FORMAT 0x08 -#define TWL4030_VIF_TRI_EN 0x04 -#define TWL4030_VIF_SUB_EN 0x02 -#define TWL4030_VIF_EN 0x01 - -/* EAR_CTL (0x21) */ -#define TWL4030_EAR_GAIN 0x30 - -/* HS_GAIN_SET (0x23) Fields */ -#define TWL4030_HSR_GAIN 0x0C -#define TWL4030_HSR_GAIN_PWR_DOWN 0x00 -#define TWL4030_HSR_GAIN_PLUS_6DB 0x04 -#define TWL4030_HSR_GAIN_0DB 0x08 -#define TWL4030_HSR_GAIN_MINUS_6DB 0x0C -#define TWL4030_HSL_GAIN 0x03 -#define TWL4030_HSL_GAIN_PWR_DOWN 0x00 -#define TWL4030_HSL_GAIN_PLUS_6DB 0x01 -#define TWL4030_HSL_GAIN_0DB 0x02 -#define TWL4030_HSL_GAIN_MINUS_6DB 0x03 - -/* HS_POPN_SET (0x24) Fields */ -#define TWL4030_VMID_EN 0x40 -#define TWL4030_EXTMUTE 0x20 -#define TWL4030_RAMP_DELAY 0x1C -#define TWL4030_RAMP_DELAY_20MS 0x00 -#define TWL4030_RAMP_DELAY_40MS 0x04 -#define TWL4030_RAMP_DELAY_81MS 0x08 -#define TWL4030_RAMP_DELAY_161MS 0x0C -#define TWL4030_RAMP_DELAY_323MS 0x10 -#define TWL4030_RAMP_DELAY_645MS 0x14 -#define TWL4030_RAMP_DELAY_1291MS 0x18 -#define TWL4030_RAMP_DELAY_2581MS 0x1C -#define TWL4030_RAMP_EN 0x02 - -/* PREDL_CTL (0x25) */ -#define TWL4030_PREDL_GAIN 0x30 - -/* PREDR_CTL (0x26) */ -#define TWL4030_PREDR_GAIN 0x30 - -/* PRECKL_CTL (0x27) */ -#define TWL4030_PRECKL_GAIN 0x30 - -/* PRECKR_CTL (0x28) */ -#define TWL4030_PRECKR_GAIN 0x30 - -/* HFL_CTL (0x29, 0x2A) Fields */ -#define TWL4030_HF_CTL_HB_EN 0x04 -#define TWL4030_HF_CTL_LOOP_EN 0x08 -#define TWL4030_HF_CTL_RAMP_EN 0x10 -#define TWL4030_HF_CTL_REF_EN 0x20 - -/* APLL_CTL (0x3A) Fields */ -#define TWL4030_APLL_EN 0x10 -#define TWL4030_APLL_INFREQ 0x0F -#define TWL4030_APLL_INFREQ_19200KHZ 0x05 -#define TWL4030_APLL_INFREQ_26000KHZ 0x06 -#define TWL4030_APLL_INFREQ_38400KHZ 0x0F - -/* REG_MISC_SET_1 (0x3E) Fields */ -#define TWL4030_CLK64_EN 0x80 -#define TWL4030_SCRAMBLE_EN 0x40 -#define TWL4030_FMLOOP_EN 0x20 -#define TWL4030_SMOOTH_ANAVOL_EN 0x02 -#define TWL4030_DIGMIC_LR_SWAP_EN 0x01 - -/* VIBRA_CTL (0x45) */ -#define TWL4030_VIBRA_EN 0x01 -#define TWL4030_VIBRA_DIR 0x02 -#define TWL4030_VIBRA_AUDIO_SEL_L1 (0x00 << 2) -#define TWL4030_VIBRA_AUDIO_SEL_R1 (0x01 << 2) -#define TWL4030_VIBRA_AUDIO_SEL_L2 (0x02 << 2) -#define TWL4030_VIBRA_AUDIO_SEL_R2 (0x03 << 2) -#define TWL4030_VIBRA_SEL 0x10 -#define TWL4030_VIBRA_DIR_SEL 0x20 - -/* TWL4030 codec resource IDs */ -enum twl4030_codec_res { - TWL4030_CODEC_RES_POWER = 0, - TWL4030_CODEC_RES_APLL, - TWL4030_CODEC_RES_MAX, -}; - -int twl4030_codec_disable_resource(enum twl4030_codec_res id); -int twl4030_codec_enable_resource(enum twl4030_codec_res id); -unsigned int twl4030_codec_get_mclk(void); - -#endif /* End of __TWL4030_CODEC_H__ */ -- cgit v1.2.3 From 4ae6df5e1018796ce260be59b2c603bd0f9faa94 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Tue, 31 May 2011 15:21:13 +0300 Subject: MFD: twl4030-audio: Rename platform data Allign the platform data names for twl4030 audio submodule: twl4030_audio_data: for the core MFD driver twl4030_codec_data: for ASoC codec driver twl4030_vibra_data: for the input/ForceFeedback driver To avoid breakage, change all depending drivers, files to use the new types. Signed-off-by: Peter Ujfalusi Acked-by: Samuel Ortiz --- include/linux/i2c/twl.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index ba4f88624fcd..e0aba2b92fa1 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -657,7 +657,7 @@ struct twl4030_power_data { extern void twl4030_power_init(struct twl4030_power_data *triton2_scripts); extern int twl4030_remove_script(u8 flags); -struct twl4030_codec_audio_data { +struct twl4030_codec_data { unsigned int digimic_delay; /* in ms */ unsigned int ramp_delay_value; unsigned int offset_cncl_path; @@ -667,14 +667,14 @@ struct twl4030_codec_audio_data { void (*set_hs_extmute)(int mute); }; -struct twl4030_codec_vibra_data { +struct twl4030_vibra_data { unsigned int coexist; }; -struct twl4030_codec_data { +struct twl4030_audio_data { unsigned int audio_mclk; - struct twl4030_codec_audio_data *audio; - struct twl4030_codec_vibra_data *vibra; + struct twl4030_codec_data *codec; + struct twl4030_vibra_data *vibra; /* twl6040 */ int audpwron_gpio; /* audio power-on gpio */ @@ -690,7 +690,7 @@ struct twl4030_platform_data { struct twl4030_keypad_data *keypad; struct twl4030_usb_data *usb; struct twl4030_power_data *power; - struct twl4030_codec_data *codec; + struct twl4030_audio_data *audio; /* Common LDO regulators for TWL4030/TWL6030 */ struct regulator_init_data *vdac; -- cgit v1.2.3 From f19b2823f82499c60ec15d5fe8783193d77e3043 Mon Sep 17 00:00:00 2001 From: Misael Lopez Cruz Date: Wed, 27 Apr 2011 02:14:07 -0500 Subject: mfd: twl6040: Add initial support TWL6040 IC provides analog high-end audio codec functions for handset applications. It contains several audio analog inputs and outputs as well as vibrator support. It's connected to the host processor via PDM interface for audio data communication. The audio modules are controlled by internal registers that can be accessed by I2C and PDM interface. TWL6040 MFD will be registered as a child of TWL-CORE, and will have two children of its own: twl6040-codec and twl6040-vibra. This driver is based on TWL4030 and WM8350 MFD drivers. Signed-off-by: Misael Lopez Cruz Signed-off-by: Peter Ujfalusi Acked-by: Samuel Ortiz --- include/linux/i2c/twl.h | 1 + include/linux/mfd/twl6040.h | 255 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 256 insertions(+) create mode 100644 include/linux/mfd/twl6040.h (limited to 'include') diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index e0aba2b92fa1..ea5baa269226 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -679,6 +679,7 @@ struct twl4030_audio_data { /* twl6040 */ int audpwron_gpio; /* audio power-on gpio */ int naudint_irq; /* audio interrupt */ + unsigned int irq_base; }; struct twl4030_platform_data { diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h new file mode 100644 index 000000000000..c3c1de53dcfe --- /dev/null +++ b/include/linux/mfd/twl6040.h @@ -0,0 +1,255 @@ +/* + * MFD driver for twl6040 + * + * Authors: Jorge Eduardo Candelaria + * Misael Lopez Cruz + * + * Copyright: (C) 2011 Texas Instruments, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef __TWL6040_CODEC_H__ +#define __TWL6040_CODEC_H__ + +#include +#include + +#define TWL6040_REG_ASICID 0x01 +#define TWL6040_REG_ASICREV 0x02 +#define TWL6040_REG_INTID 0x03 +#define TWL6040_REG_INTMR 0x04 +#define TWL6040_REG_NCPCTL 0x05 +#define TWL6040_REG_LDOCTL 0x06 +#define TWL6040_REG_HPPLLCTL 0x07 +#define TWL6040_REG_LPPLLCTL 0x08 +#define TWL6040_REG_LPPLLDIV 0x09 +#define TWL6040_REG_AMICBCTL 0x0A +#define TWL6040_REG_DMICBCTL 0x0B +#define TWL6040_REG_MICLCTL 0x0C +#define TWL6040_REG_MICRCTL 0x0D +#define TWL6040_REG_MICGAIN 0x0E +#define TWL6040_REG_LINEGAIN 0x0F +#define TWL6040_REG_HSLCTL 0x10 +#define TWL6040_REG_HSRCTL 0x11 +#define TWL6040_REG_HSGAIN 0x12 +#define TWL6040_REG_EARCTL 0x13 +#define TWL6040_REG_HFLCTL 0x14 +#define TWL6040_REG_HFLGAIN 0x15 +#define TWL6040_REG_HFRCTL 0x16 +#define TWL6040_REG_HFRGAIN 0x17 +#define TWL6040_REG_VIBCTLL 0x18 +#define TWL6040_REG_VIBDATL 0x19 +#define TWL6040_REG_VIBCTLR 0x1A +#define TWL6040_REG_VIBDATR 0x1B +#define TWL6040_REG_HKCTL1 0x1C +#define TWL6040_REG_HKCTL2 0x1D +#define TWL6040_REG_GPOCTL 0x1E +#define TWL6040_REG_ALB 0x1F +#define TWL6040_REG_DLB 0x20 +#define TWL6040_REG_TRIM1 0x28 +#define TWL6040_REG_TRIM2 0x29 +#define TWL6040_REG_TRIM3 0x2A +#define TWL6040_REG_HSOTRIM 0x2B +#define TWL6040_REG_HFOTRIM 0x2C +#define TWL6040_REG_ACCCTL 0x2D +#define TWL6040_REG_STATUS 0x2E + +#define TWL6040_CACHEREGNUM (TWL6040_REG_STATUS + 1) + +#define TWL6040_VIOREGNUM 18 +#define TWL6040_VDDREGNUM 21 + +/* INTID (0x03) fields */ + +#define TWL6040_THINT 0x01 +#define TWL6040_PLUGINT 0x02 +#define TWL6040_UNPLUGINT 0x04 +#define TWL6040_HOOKINT 0x08 +#define TWL6040_HFINT 0x10 +#define TWL6040_VIBINT 0x20 +#define TWL6040_READYINT 0x40 + +/* INTMR (0x04) fields */ + +#define TWL6040_THMSK 0x01 +#define TWL6040_PLUGMSK 0x02 +#define TWL6040_HOOKMSK 0x08 +#define TWL6040_HFMSK 0x10 +#define TWL6040_VIBMSK 0x20 +#define TWL6040_READYMSK 0x40 +#define TWL6040_ALLINT_MSK 0x7B + +/* NCPCTL (0x05) fields */ + +#define TWL6040_NCPENA 0x01 +#define TWL6040_NCPOPEN 0x40 + +/* LDOCTL (0x06) fields */ + +#define TWL6040_LSLDOENA 0x01 +#define TWL6040_HSLDOENA 0x04 +#define TWL6040_REFENA 0x40 +#define TWL6040_OSCENA 0x80 + +/* HPPLLCTL (0x07) fields */ + +#define TWL6040_HPLLENA 0x01 +#define TWL6040_HPLLRST 0x02 +#define TWL6040_HPLLBP 0x04 +#define TWL6040_HPLLSQRENA 0x08 +#define TWL6040_MCLK_12000KHZ (0 << 5) +#define TWL6040_MCLK_19200KHZ (1 << 5) +#define TWL6040_MCLK_26000KHZ (2 << 5) +#define TWL6040_MCLK_38400KHZ (3 << 5) +#define TWL6040_MCLK_MSK 0x60 + +/* LPPLLCTL (0x08) fields */ + +#define TWL6040_LPLLENA 0x01 +#define TWL6040_LPLLRST 0x02 +#define TWL6040_LPLLSEL 0x04 +#define TWL6040_LPLLFIN 0x08 +#define TWL6040_HPLLSEL 0x10 + +/* HSLCTL (0x10) fields */ + +#define TWL6040_HSDACMODEL 0x02 +#define TWL6040_HSDRVMODEL 0x08 + +/* HSRCTL (0x11) fields */ + +#define TWL6040_HSDACMODER 0x02 +#define TWL6040_HSDRVMODER 0x08 + +/* VIBCTLL (0x18) fields */ + +#define TWL6040_VIBENAL 0x01 +#define TWL6040_VIBCTRLL 0x04 +#define TWL6040_VIBCTRLLP 0x08 +#define TWL6040_VIBCTRLLN 0x10 + +/* VIBDATL (0x19) fields */ + +#define TWL6040_VIBDAT_MAX 0x64 + +/* VIBCTLR (0x1A) fields */ + +#define TWL6040_VIBENAR 0x01 +#define TWL6040_VIBCTRLR 0x04 +#define TWL6040_VIBCTRLRP 0x08 +#define TWL6040_VIBCTRLRN 0x10 + +/* GPOCTL (0x1E) fields */ + +#define TWL6040_GPO1 0x01 +#define TWL6040_GPO2 0x02 +#define TWL6040_GPO3 0x03 + +/* ACCCTL (0x2D) fields */ + +#define TWL6040_I2CSEL 0x01 +#define TWL6040_RESETSPLIT 0x04 +#define TWL6040_INTCLRMODE 0x08 + +#define TWL6040_SYSCLK_SEL_LPPLL 1 +#define TWL6040_SYSCLK_SEL_HPPLL 2 + +/* STATUS (0x2E) fields */ + +#define TWL6040_PLUGCOMP 0x02 +#define TWL6040_VIBLOCDET 0x10 +#define TWL6040_VIBROCDET 0x20 +#define TWL6040_TSHUTDET 0x40 + +#define TWL6040_CELLS 2 + +#define TWL6040_REV_ES1_0 0x00 +#define TWL6040_REV_ES1_1 0x01 +#define TWL6040_REV_ES1_2 0x02 + +#define TWL6040_IRQ_TH 0 +#define TWL6040_IRQ_PLUG 1 +#define TWL6040_IRQ_HOOK 2 +#define TWL6040_IRQ_HF 3 +#define TWL6040_IRQ_VIB 4 +#define TWL6040_IRQ_READY 5 + +enum twl6040_pll_id { + TWL6040_NOPLL_ID, + TWL6040_LPPLL_ID, + TWL6040_HPPLL_ID, +}; + +struct twl6040 { + struct device *dev; + struct mutex mutex; + struct mutex io_mutex; + struct mutex irq_mutex; + struct mfd_cell cells[TWL6040_CELLS]; + struct completion ready; + + int audpwron; + int power_count; + int rev; + + enum twl6040_pll_id pll; + unsigned int sysclk; + + unsigned int irq; + unsigned int irq_base; + u8 irq_masks_cur; + u8 irq_masks_cache; +}; + +static inline int twl6040_request_irq(struct twl6040 *twl6040, int irq, + irq_handler_t handler, + unsigned long irqflags, + const char *name, + void *data) +{ + if (!twl6040->irq_base) + return -EINVAL; + + return request_threaded_irq(twl6040->irq_base + irq, NULL, handler, + irqflags, name, data); +} + +static inline void twl6040_free_irq(struct twl6040 *twl6040, int irq, + void *data) +{ + if (!twl6040->irq_base) + return; + + free_irq(twl6040->irq_base + irq, data); +} + +int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg); +int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, + u8 val); +int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, + u8 mask); +int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, + u8 mask); +int twl6040_power(struct twl6040 *twl6040, int on); +int twl6040_set_pll(struct twl6040 *twl6040, enum twl6040_pll_id id, + unsigned int freq_in, unsigned int freq_out); +enum twl6040_pll_id twl6040_get_pll(struct twl6040 *twl6040); +unsigned int twl6040_get_sysclk(struct twl6040 *twl6040); +int twl6040_irq_init(struct twl6040 *twl6040); +void twl6040_irq_exit(struct twl6040 *twl6040); + +#endif /* End of __TWL6040_CODEC_H__ */ -- cgit v1.2.3 From cc697d38392c92b7504e7719c65ae905f0a0618a Mon Sep 17 00:00:00 2001 From: Misael Lopez Cruz Date: Sun, 1 May 2011 03:51:24 -0500 Subject: input: Add initial support for TWL6040 vibrator Add twl6040_vibra as a child of MFD device twl6040_codec. This implementation covers the PCM-to-PWM mode of TWL6040 vibrator module. Signed-off-by: Misael Lopez Cruz Signed-off-by: Peter Ujfalusi CC: Tejun Heo Acked-by: Dmitry Torokhov --- include/linux/i2c/twl.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index ea5baa269226..685fd767c69b 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -669,6 +669,14 @@ struct twl4030_codec_data { struct twl4030_vibra_data { unsigned int coexist; + + /* twl6040 */ + unsigned int vibldrv_res; /* left driver resistance */ + unsigned int vibrdrv_res; /* right driver resistance */ + unsigned int viblmotor_res; /* left motor resistance */ + unsigned int vibrmotor_res; /* right motor resistance */ + int vddvibl_uV; /* VDDVIBL volt, set 0 for fixed reg */ + int vddvibr_uV; /* VDDVIBR volt, set 0 for fixed reg */ }; struct twl4030_audio_data { -- cgit v1.2.3 From 1fbe99529d9490fd29982af07731650f112ffdfa Mon Sep 17 00:00:00 2001 From: Axel Castaneda Gonzalez Date: Wed, 23 Feb 2011 20:08:28 -0600 Subject: ASoC: twl6040: Configure ramp step based on platform Enable ramp down/up step to be configured based on platform. Signed-off-by: Axel Castaneda Gonzalez Signed-off-by: Misael Lopez Cruz Signed-off-by: Peter Ujfalusi Acked-by: Mark Brown --- include/linux/i2c/twl.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index 685fd767c69b..114c0f6fc63d 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -664,6 +664,10 @@ struct twl4030_codec_data { unsigned int check_defaults:1; unsigned int reset_registers:1; unsigned int hs_extmute:1; + u16 hs_left_step; + u16 hs_right_step; + u16 hf_left_step; + u16 hf_right_step; void (*set_hs_extmute)(int mute); }; -- cgit v1.2.3 From 2456689b3b11ddecc091cd5f00b9adea6a9854cf Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Mon, 4 Jul 2011 19:22:00 -0700 Subject: Input: wm97xx - remove redundant define Signed-off-by: Wolfram Sang Acked-by: Mark Brown Signed-off-by: Dmitry Torokhov --- include/linux/wm97xx.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/wm97xx.h b/include/linux/wm97xx.h index 38e8c4d9289e..10b9e614fccd 100644 --- a/include/linux/wm97xx.h +++ b/include/linux/wm97xx.h @@ -38,7 +38,7 @@ #define WM97XX_ADCSEL_X 0x1000 /* x coord measurement */ #define WM97XX_ADCSEL_Y 0x2000 /* y coord measurement */ #define WM97XX_ADCSEL_PRES 0x3000 /* pressure measurement */ -#define WM97XX_ADCSEL_MASK 0x7000 +#define WM97XX_ADCSEL_MASK 0x7000 /* ADC selection mask */ #define WM97XX_COO 0x0800 /* enable coordinate mode */ #define WM97XX_CTC 0x0400 /* enable continuous mode */ #define WM97XX_CM_RATE_93 0x0000 /* 93.75Hz continuous rate */ @@ -61,7 +61,6 @@ #define WM97XX_PRP_DET_DIG 0xc000 /* setect on, digitise on */ #define WM97XX_RPR 0x2000 /* wake up on pen down */ #define WM97XX_PEN_DOWN 0x8000 /* pen is down */ -#define WM97XX_ADCSRC_MASK 0x7000 /* ADC source mask */ #define WM97XX_AUX_ID1 0x8001 #define WM97XX_AUX_ID2 0x8002 -- cgit v1.2.3 From c8f205258bc8942e79cd37ebc1c8ec4652a1a501 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Mon, 4 Jul 2011 19:22:00 -0700 Subject: Input: wm97xx - refactor channel selection in poll_sample() The current implementation of poll_sample() has the problem that one of its arguments, the channel to be selected, differs from wm9713 to other variants. This parameter gets passed to the (currently unused) mach-specific functions pre_sample() and post_sample() which thus have to deal with codec-specific differences. Refactor the routine so that the argument to poll_sample() is generic for all codecs and do necessary conversions only in the codec-specific driver. The outcome even uses less code and removes the non-standard use of the PEN_DOWN bit to mark the AUX-channels. Signed-off-by: Wolfram Sang Acked-by: Mark Brown Signed-off-by: Dmitry Torokhov --- include/linux/wm97xx.h | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/wm97xx.h b/include/linux/wm97xx.h index 10b9e614fccd..fd98bb968219 100644 --- a/include/linux/wm97xx.h +++ b/include/linux/wm97xx.h @@ -38,6 +38,10 @@ #define WM97XX_ADCSEL_X 0x1000 /* x coord measurement */ #define WM97XX_ADCSEL_Y 0x2000 /* y coord measurement */ #define WM97XX_ADCSEL_PRES 0x3000 /* pressure measurement */ +#define WM97XX_AUX_ID1 0x4000 +#define WM97XX_AUX_ID2 0x5000 +#define WM97XX_AUX_ID3 0x6000 +#define WM97XX_AUX_ID4 0x7000 #define WM97XX_ADCSEL_MASK 0x7000 /* ADC selection mask */ #define WM97XX_COO 0x0800 /* enable coordinate mode */ #define WM97XX_CTC 0x0400 /* enable continuous mode */ @@ -62,12 +66,6 @@ #define WM97XX_RPR 0x2000 /* wake up on pen down */ #define WM97XX_PEN_DOWN 0x8000 /* pen is down */ -#define WM97XX_AUX_ID1 0x8001 -#define WM97XX_AUX_ID2 0x8002 -#define WM97XX_AUX_ID3 0x8003 -#define WM97XX_AUX_ID4 0x8004 - - /* WM9712 Bits */ #define WM9712_45W 0x1000 /* set for 5-wire touchscreen */ #define WM9712_PDEN 0x0800 /* measure only when pen down */ -- cgit v1.2.3 From 7bed4b2c97d548c652ada6111604568ea6b0c423 Mon Sep 17 00:00:00 2001 From: Simon Budig Date: Mon, 4 Jul 2011 19:56:01 -0700 Subject: Input: add guarding parentheses to macros Put parentheses around macro argument uses. This avoids pitfalls for the programmer, where the argument expansion does not give the expected result, for example: ioctl (fd, EVIOCGABS (have_mt ? ABS_MT_POSITION_X : ABS_X), &abs); Signed-off-by: Simon Budig Signed-off-by: Dmitry Torokhov --- include/linux/input.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/input.h b/include/linux/input.h index 771d6d85667d..068784e17972 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -119,9 +119,9 @@ struct input_keymap_entry { #define EVIOCGSND(len) _IOC(_IOC_READ, 'E', 0x1a, len) /* get all sounds status */ #define EVIOCGSW(len) _IOC(_IOC_READ, 'E', 0x1b, len) /* get all switch states */ -#define EVIOCGBIT(ev,len) _IOC(_IOC_READ, 'E', 0x20 + ev, len) /* get event bits */ -#define EVIOCGABS(abs) _IOR('E', 0x40 + abs, struct input_absinfo) /* get abs value/limits */ -#define EVIOCSABS(abs) _IOW('E', 0xc0 + abs, struct input_absinfo) /* set abs value/limits */ +#define EVIOCGBIT(ev,len) _IOC(_IOC_READ, 'E', 0x20 + (ev), len) /* get event bits */ +#define EVIOCGABS(abs) _IOR('E', 0x40 + (abs), struct input_absinfo) /* get abs value/limits */ +#define EVIOCSABS(abs) _IOW('E', 0xc0 + (abs), struct input_absinfo) /* set abs value/limits */ #define EVIOCSFF _IOC(_IOC_WRITE, 'E', 0x80, sizeof(struct ff_effect)) /* send a force effect to a force feedback device */ #define EVIOCRMFF _IOW('E', 0x81, int) /* Erase a force effect */ -- cgit v1.2.3 From 7a0d4fcf6d4b80b30503fd2701eeef1883e11404 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Sat, 25 Jun 2011 17:34:09 +0100 Subject: x86, olpc: Move CS5536-related constants to cs5535.h Move these definitions into the relevant header file. This was requested in the review of the upcoming XO-1 suspend/resume code. Signed-off-by: Daniel Drake Link: http://lkml.kernel.org/r/1309019658-1712-3-git-send-email-dsd@laptop.org Acked-by: Andres Salomon Signed-off-by: H. Peter Anvin --- include/linux/cs5535.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'include') diff --git a/include/linux/cs5535.h b/include/linux/cs5535.h index 6fe2114f8ad2..e46b8b0f9057 100644 --- a/include/linux/cs5535.h +++ b/include/linux/cs5535.h @@ -49,6 +49,27 @@ #define LBAR_ACPI_SIZE 0x40 #define LBAR_PMS_SIZE 0x80 +/* + * PMC registers (PMS block) + * It is only safe to access these registers as dword accesses. + * See CS5536 Specification Update erratas 17 & 18 + */ +#define CS5536_PM_SCLK 0x10 +#define CS5536_PM_IN_SLPCTL 0x20 +#define CS5536_PM_WKXD 0x34 +#define CS5536_PM_WKD 0x30 +#define CS5536_PM_SSC 0x54 + +/* + * PM registers (ACPI block) + * It is only safe to access these registers as dword accesses. + * See CS5536 Specification Update erratas 17 & 18 + */ +#define CS5536_PM1_STS 0x00 +#define CS5536_PM1_EN 0x02 +#define CS5536_PM1_CNT 0x08 +#define CS5536_PM_GPE0_STS 0x18 + /* VSA2 magic values */ #define VSA_VRC_INDEX 0xAC1C #define VSA_VRC_DATA 0xAC1E -- cgit v1.2.3 From 97c4cb71c18fe045a763ff6681a8ebbbbbec0b2b Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Sat, 25 Jun 2011 17:34:11 +0100 Subject: x86, olpc: Add XO-1 suspend/resume support Add code needed for basic suspend/resume of the XO-1 laptop. Based on earlier work by Jordan Crouse, Andres Salomon, and others. This patch incorporates all earlier feedback from Thomas Gleixner. To clarify a certain point (now more obvious in the code itself): On resume, OpenFirmware returns execution to Linux in protected mode with a kernel-compatible GDT already set up. The changes and simplifications suggested have all been included. Signed-off-by: Daniel Drake Link: http://lkml.kernel.org/r/1309019658-1712-5-git-send-email-dsd@laptop.org Acked-by: Andres Salomon Signed-off-by: H. Peter Anvin --- include/linux/cs5535.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/cs5535.h b/include/linux/cs5535.h index e46b8b0f9057..2facf16f017b 100644 --- a/include/linux/cs5535.h +++ b/include/linux/cs5535.h @@ -70,6 +70,9 @@ #define CS5536_PM1_CNT 0x08 #define CS5536_PM_GPE0_STS 0x18 +/* CS5536_PM1_EN bits */ +#define CS5536_PM_PWRBTN (1 << 8) + /* VSA2 magic values */ #define VSA_VRC_INDEX 0xAC1C #define VSA_VRC_DATA 0xAC1E -- cgit v1.2.3 From 7feda8e9f35ebb0e9f90e03acb02280bc137f784 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Sat, 25 Jun 2011 17:34:12 +0100 Subject: x86, olpc: Add XO-1 SCI driver and power button control The System Control Interrupt is used in the OLPC XO-1 to control various features of the laptop. Add the driver base and the power button functionality. This driver can't be built as a module, because functionality added in future patches means that some drivers need to know at boot-time whether SCI-based functionality is available. Signed-off-by: Daniel Drake Link: http://lkml.kernel.org/r/1309019658-1712-6-git-send-email-dsd@laptop.org Acked-by: Andres Salomon Signed-off-by: H. Peter Anvin --- include/linux/cs5535.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/linux/cs5535.h b/include/linux/cs5535.h index 2facf16f017b..6f78235cb905 100644 --- a/include/linux/cs5535.h +++ b/include/linux/cs5535.h @@ -43,6 +43,10 @@ #define MSR_GX_GLD_MSR_CONFIG 0xC0002001 #define MSR_GX_MSR_PADSEL 0xC0002011 +/* PIC registers */ +#define CS5536_PIC_INT_SEL1 0x4d0 +#define CS5536_PIC_INT_SEL2 0x4d1 + /* resource sizes */ #define LBAR_GPIO_SIZE 0xFF #define LBAR_MFGPT_SIZE 0x40 @@ -70,6 +74,10 @@ #define CS5536_PM1_CNT 0x08 #define CS5536_PM_GPE0_STS 0x18 +/* CS5536_PM1_STS bits */ +#define CS5536_WAK_FLAG (1 << 15) +#define CS5536_PWRBTN_FLAG (1 << 8) + /* CS5536_PM1_EN bits */ #define CS5536_PM_PWRBTN (1 << 8) -- cgit v1.2.3 From 7bc74b3df73776fe06f3df9fafd2d2698e6ca28a Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Sat, 25 Jun 2011 17:34:14 +0100 Subject: x86, olpc-xo1-sci: Add GPE handler and ebook switch functionality The EC in the OLPC XO-1 delivers GPE events to provide various notifications. Add the basic code for GPE/EC event processing and enable the ebook switch, which can be used as a wakeup source. Signed-off-by: Daniel Drake Link: http://lkml.kernel.org/r/1309019658-1712-8-git-send-email-dsd@laptop.org Acked-by: Andres Salomon Signed-off-by: H. Peter Anvin --- include/linux/cs5535.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'include') diff --git a/include/linux/cs5535.h b/include/linux/cs5535.h index 6f78235cb905..d7e9a7f6ddb0 100644 --- a/include/linux/cs5535.h +++ b/include/linux/cs5535.h @@ -11,6 +11,8 @@ #ifndef _CS5535_H #define _CS5535_H +#include + /* MSRs */ #define MSR_GLIU_P2D_RO0 0x10000029 @@ -43,6 +45,18 @@ #define MSR_GX_GLD_MSR_CONFIG 0xC0002001 #define MSR_GX_MSR_PADSEL 0xC0002011 +static inline int cs5535_pic_unreqz_select_high(unsigned int group, + unsigned int irq) +{ + uint32_t lo, hi; + + rdmsr(MSR_PIC_ZSEL_HIGH, lo, hi); + lo &= ~(0xF << (group * 4)); + lo |= (irq & 0xF) << (group * 4); + wrmsr(MSR_PIC_ZSEL_HIGH, lo, hi); + return 0; +} + /* PIC registers */ #define CS5536_PIC_INT_SEL1 0x4d0 #define CS5536_PIC_INT_SEL2 0x4d1 @@ -73,6 +87,7 @@ #define CS5536_PM1_EN 0x02 #define CS5536_PM1_CNT 0x08 #define CS5536_PM_GPE0_STS 0x18 +#define CS5536_PM_GPE0_EN 0x1c /* CS5536_PM1_STS bits */ #define CS5536_WAK_FLAG (1 << 15) @@ -81,6 +96,13 @@ /* CS5536_PM1_EN bits */ #define CS5536_PM_PWRBTN (1 << 8) +/* CS5536_PM_GPE0_STS bits */ +#define CS5536_GPIOM7_PME_FLAG (1 << 31) +#define CS5536_GPIOM6_PME_FLAG (1 << 30) + +/* CS5536_PM_GPE0_EN bits */ +#define CS5536_GPIOM7_PME_EN (1 << 31) + /* VSA2 magic values */ #define VSA_VRC_INDEX 0xAC1C #define VSA_VRC_DATA 0xAC1E -- cgit v1.2.3 From 2cf2baea103f0a3d68b0f989d28df66f16dbc834 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Sat, 25 Jun 2011 17:34:15 +0100 Subject: x86, olpc-xo1-sci: Add lid switch functionality Configure the XO-1's lid switch GPIO to trigger an SCI interrupt, and correctly expose this input device which can be used as a wakeup source. Signed-off-by: Daniel Drake Link: http://lkml.kernel.org/r/1309019658-1712-9-git-send-email-dsd@laptop.org Acked-by: Andres Salomon Signed-off-by: H. Peter Anvin --- include/linux/cs5535.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/cs5535.h b/include/linux/cs5535.h index d7e9a7f6ddb0..72954c6bf5d6 100644 --- a/include/linux/cs5535.h +++ b/include/linux/cs5535.h @@ -102,6 +102,7 @@ static inline int cs5535_pic_unreqz_select_high(unsigned int group, /* CS5536_PM_GPE0_EN bits */ #define CS5536_GPIOM7_PME_EN (1 << 31) +#define CS5536_GPIOM6_PME_EN (1 << 30) /* VSA2 magic values */ #define VSA_VRC_INDEX 0xAC1C -- cgit v1.2.3 From cfee95977bea090ae5ec4fd442ebd381792d46c4 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Sat, 25 Jun 2011 17:34:17 +0100 Subject: x86, olpc: Add XO-1 RTC driver Add a driver to configure the XO-1 RTC via CS5536 MSRs, to be used as a system wakeup source via olpc-xo1-pm. Device detection is based on finding the relevant device tree node. Signed-off-by: Daniel Drake Link: http://lkml.kernel.org/r/1309019658-1712-11-git-send-email-dsd@laptop.org Acked-by: Andres Salomon Acked-by: Grant Likely Reviewed-by: Sebastian Andrzej Siewior Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: H. Peter Anvin --- include/linux/cs5535.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/cs5535.h b/include/linux/cs5535.h index 72954c6bf5d6..c077aec3a6ff 100644 --- a/include/linux/cs5535.h +++ b/include/linux/cs5535.h @@ -40,6 +40,10 @@ #define MSR_MFGPT_NR 0x51400029 #define MSR_MFGPT_SETUP 0x5140002B +#define MSR_RTC_DOMA_OFFSET 0x51400055 +#define MSR_RTC_MONA_OFFSET 0x51400056 +#define MSR_RTC_CEN_OFFSET 0x51400057 + #define MSR_LX_SPARE_MSR 0x80000011 /* DC-specific */ #define MSR_GX_GLD_MSR_CONFIG 0xC0002001 @@ -95,6 +99,7 @@ static inline int cs5535_pic_unreqz_select_high(unsigned int group, /* CS5536_PM1_EN bits */ #define CS5536_PM_PWRBTN (1 << 8) +#define CS5536_PM_RTC (1 << 10) /* CS5536_PM_GPE0_STS bits */ #define CS5536_GPIOM7_PME_FLAG (1 << 31) -- cgit v1.2.3 From e8e70d83912b40c5c9ea7b85a6110b9925fbed62 Mon Sep 17 00:00:00 2001 From: Chris Hudson Date: Wed, 6 Jul 2011 18:36:51 -0700 Subject: Input: add support for Kionix KXTJ9 accelerometer Signed-off-by: Chris Hudson Signed-off-by: Dmitry Torokhov --- include/linux/input/kxtj9.h | 70 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 include/linux/input/kxtj9.h (limited to 'include') diff --git a/include/linux/input/kxtj9.h b/include/linux/input/kxtj9.h new file mode 100644 index 000000000000..f6bac89537b8 --- /dev/null +++ b/include/linux/input/kxtj9.h @@ -0,0 +1,70 @@ +/* + * Copyright (C) 2011 Kionix, Inc. + * Written by Chris Hudson + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + * 02111-1307, USA + */ + +#ifndef __KXTJ9_H__ +#define __KXTJ9_H__ + +#define KXTJ9_I2C_ADDR 0x0F + +struct kxtj9_platform_data { + unsigned int min_interval; /* minimum poll interval (in milli-seconds) */ + + /* + * By default, x is axis 0, y is axis 1, z is axis 2; these can be + * changed to account for sensor orientation within the host device. + */ + u8 axis_map_x; + u8 axis_map_y; + u8 axis_map_z; + + /* + * Each axis can be negated to account for sensor orientation within + * the host device. + */ + bool negate_x; + bool negate_y; + bool negate_z; + + /* CTRL_REG1: set resolution, g-range, data ready enable */ + /* Output resolution: 8-bit valid or 12-bit valid */ + #define RES_8BIT 0 + #define RES_12BIT (1 << 6) + u8 res_12bit; + /* Output g-range: +/-2g, 4g, or 8g */ + #define KXTJ9_G_2G 0 + #define KXTJ9_G_4G (1 << 3) + #define KXTJ9_G_8G (1 << 4) + u8 g_range; + + /* DATA_CTRL_REG: controls the output data rate of the part */ + #define ODR12_5F 0 + #define ODR25F 1 + #define ODR50F 2 + #define ODR100F 3 + #define ODR200F 4 + #define ODR400F 5 + #define ODR800F 6 + u8 data_odr_init; + + int (*init)(void); + void (*exit)(void); + int (*power_on)(void); + int (*power_off)(void); +}; +#endif /* __KXTJ9_H__ */ -- cgit v1.2.3 From 1b7c4725e2e926eaeb8657ac22992ec27fe03135 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Mon, 4 Jul 2011 20:16:23 +0300 Subject: MFD: twl6040: Remove wrapper for threaded irq request Remove the twl6040_request_irq/free_irq inline functions, and use direct calls instead in the core driver to register the threaded irq. Signed-off-by: Peter Ujfalusi Reviewed-by: Felipe Balbi Acked-by: Samuel Ortiz --- include/linux/mfd/twl6040.h | 22 ---------------------- 1 file changed, 22 deletions(-) (limited to 'include') diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index c3c1de53dcfe..df890a247c36 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -215,28 +215,6 @@ struct twl6040 { u8 irq_masks_cache; }; -static inline int twl6040_request_irq(struct twl6040 *twl6040, int irq, - irq_handler_t handler, - unsigned long irqflags, - const char *name, - void *data) -{ - if (!twl6040->irq_base) - return -EINVAL; - - return request_threaded_irq(twl6040->irq_base + irq, NULL, handler, - irqflags, name, data); -} - -static inline void twl6040_free_irq(struct twl6040 *twl6040, int irq, - void *data) -{ - if (!twl6040->irq_base) - return; - - free_irq(twl6040->irq_base + irq, data); -} - int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg); int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val); -- cgit v1.2.3 From cfb7a33bea259d2d72a64adcb3de28532170dc25 Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Mon, 4 Jul 2011 10:28:28 +0300 Subject: MFD: twl6040: Remove enum for PLL tracking There is no need to have two different types for tracking the selected PLL. Use only the defines, when dealing with the PLLs. Signed-off-by: Peter Ujfalusi Acked-by: Samuel Ortiz --- include/linux/mfd/twl6040.h | 17 ++++++----------- 1 file changed, 6 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index df890a247c36..4c806f6d663e 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -165,9 +165,6 @@ #define TWL6040_RESETSPLIT 0x04 #define TWL6040_INTCLRMODE 0x08 -#define TWL6040_SYSCLK_SEL_LPPLL 1 -#define TWL6040_SYSCLK_SEL_HPPLL 2 - /* STATUS (0x2E) fields */ #define TWL6040_PLUGCOMP 0x02 @@ -188,11 +185,9 @@ #define TWL6040_IRQ_VIB 4 #define TWL6040_IRQ_READY 5 -enum twl6040_pll_id { - TWL6040_NOPLL_ID, - TWL6040_LPPLL_ID, - TWL6040_HPPLL_ID, -}; +/* PLL selection */ +#define TWL6040_SYSCLK_SEL_LPPLL 0 +#define TWL6040_SYSCLK_SEL_HPPLL 1 struct twl6040 { struct device *dev; @@ -206,7 +201,7 @@ struct twl6040 { int power_count; int rev; - enum twl6040_pll_id pll; + int pll; unsigned int sysclk; unsigned int irq; @@ -223,9 +218,9 @@ int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask); int twl6040_power(struct twl6040 *twl6040, int on); -int twl6040_set_pll(struct twl6040 *twl6040, enum twl6040_pll_id id, +int twl6040_set_pll(struct twl6040 *twl6040, int pll_id, unsigned int freq_in, unsigned int freq_out); -enum twl6040_pll_id twl6040_get_pll(struct twl6040 *twl6040); +int twl6040_get_pll(struct twl6040 *twl6040); unsigned int twl6040_get_sysclk(struct twl6040 *twl6040); int twl6040_irq_init(struct twl6040 *twl6040); void twl6040_irq_exit(struct twl6040 *twl6040); -- cgit v1.2.3 From ea6bd8ee1a2ccdffc38b2b1fcfe941addfafaade Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Wed, 6 Jul 2011 09:46:18 -0500 Subject: SLUB: Fix build breakage in linux/mm_types.h On Wed, 6 Jul 2011, Jonathan Cameron wrote: > Getting: > > CHK include/linux/version.h > CHK include/generated/utsrelease.h > make[1]: `include/generated/mach-types.h' is up to date. > CC arch/arm/kernel/asm-offsets.s > In file included from include/linux/sched.h:64:0, > from arch/arm/kernel/asm-offsets.c:13: > include/linux/mm_types.h:74:15: error: duplicate member '_count' > make[1]: *** [arch/arm/kernel/asm-offsets.s] Error 1 > make: *** [prepare0] Error 2 > > Issue looks to have been introduced by > > mm: Rearrange struct page > > fc9bb8c768abe7ae10861c3510e01a95f98d5933 > > Guessing it's a known issue, but just thought I'd flag it up in case > it's something very specific about my build. > > gcc-2.6 armv7a > > Reverting that patch works, but given I don't know the history, I'm > not proposing doing that in general! Well _count exists in two unionized structs but always has the same offset within the larger struct. Maybe ARM creates different offsets there for some reason? The following is a patch to restructure the union / structs combo in such a way that only a single definition of _count Reported-by: Jonathan Cameron Tested-by: Piotr Hosowicz Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/mm_types.h | 25 ++++++++++--------------- 1 file changed, 10 insertions(+), 15 deletions(-) (limited to 'include') diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 3d76a433d52f..6dc6413f5deb 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -49,32 +49,27 @@ struct page { * see PAGE_MAPPING_ANON below. */ /* Second double word */ - union { - struct { + struct { + union { pgoff_t index; /* Our offset within mapping. */ + void *freelist; /* slub first free object */ + }; + + union { atomic_t _mapcount; /* Count of ptes mapped in mms, * to show when page is mapped * & limit reverse map searches. */ - atomic_t _count; /* Usage count, see below. */ - }; - struct { /* SLUB cmpxchg_double area */ - void *freelist; - union { - unsigned long counters; - struct { + /* Used for cmpxchg_double in slub */ + unsigned long counters; + struct { unsigned inuse:16; unsigned objects:15; unsigned frozen:1; - /* - * Kernel may make use of this field even when slub - * uses the rest of the double word! - */ - atomic_t _count; - }; }; }; + atomic_t _count; /* Usage count, see below. */ }; /* Third double word block */ -- cgit v1.2.3 From 58ddafae2d7102d8f493840cb7aca0b4b2326b2a Mon Sep 17 00:00:00 2001 From: Rhyland Klein Date: Tue, 24 May 2011 12:05:59 -0700 Subject: bq20z75: Add support for external notification Adding support for external power change notification. One problem found is that there is a lag time before the sensor will return a new status. To ensure that we only fire off the power_supply_changed event when the status returned from the sensor is actually different, we delay sending the the notification, and instead poll on it looking for a change. The amount of time to poll is configurable via platform data. Signed-off-by: Rhyland Klein Signed-off-by: Anton Vorontsov --- include/linux/power/bq20z75.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/power/bq20z75.h b/include/linux/power/bq20z75.h index b0843b68af92..1398eb004e83 100644 --- a/include/linux/power/bq20z75.h +++ b/include/linux/power/bq20z75.h @@ -29,11 +29,14 @@ * @battery_detect: GPIO which is used to detect battery presence * @battery_detect_present: gpio state when battery is present (0 / 1) * @i2c_retry_count: # of times to retry on i2c IO failure + * @poll_retry_count: # of times to retry looking for new status after + * external change notification */ struct bq20z75_platform_data { int battery_detect; int battery_detect_present; int i2c_retry_count; + int poll_retry_count; }; #endif -- cgit v1.2.3 From 149c077b4bd746eca2eeb241e55456eb4882b259 Mon Sep 17 00:00:00 2001 From: Donggeun Kim Date: Wed, 22 Jun 2011 19:40:06 +0900 Subject: power_supply: Add charger driver for MAX8997/8966 MAX8997/8966 chip is a multi-function device which includes PMIC, RTC, Fuel Gauge, MUIC, Haptic, Flash control, and Battery charging control. The driver for it is located at drivers/mfd. This patch supports battery charging control of MAX8997/8966 chip and provides power supply class information to userspace. Signed-off-by: Donggeun Kim Signed-off-by: MyungJoo Ham Signed-off-by: KyungMin Park Acked-by: Samuel Ortiz Signed-off-by: Anton Vorontsov --- include/linux/mfd/max8997.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mfd/max8997.h b/include/linux/mfd/max8997.h index 60931d089422..0bbd13dbe336 100644 --- a/include/linux/mfd/max8997.h +++ b/include/linux/mfd/max8997.h @@ -107,11 +107,16 @@ struct max8997_platform_data { unsigned int buck5_voltage[8]; bool buck5_gpiodvs; + /* ---- Charger control ---- */ + /* eoc stands for 'end of charge' */ + int eoc_mA; /* 50 ~ 200mA by 10mA step */ + /* charge Full Timeout */ + int timeout; /* 0 (no timeout), 5, 6, 7 hours */ + /* MUIC: Not implemented */ /* HAPTIC: Not implemented */ /* RTC: Not implemented */ /* Flash: Not implemented */ - /* Charger control: Not implemented */ }; #endif /* __LINUX_MFD_MAX8998_H */ -- cgit v1.2.3 From bb4ce9708785f40849f1a64931e6cc3b26171201 Mon Sep 17 00:00:00 2001 From: Donggeun Kim Date: Fri, 24 Jun 2011 19:04:18 +0900 Subject: power_supply: Add charger driver for MAX8998/LP3974 This patch supports power supply APIs for MAX8998/LP3974. Signed-off-by: Donggeun Kim Signed-off-by: MyungJoo Ham Signed-off-by: KyungMin Park Acked-by: Samuel Ortiz Signed-off-by: Anton Vorontsov --- include/linux/mfd/max8998.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/max8998.h b/include/linux/mfd/max8998.h index 61daa167b576..f4f0dfa4698a 100644 --- a/include/linux/mfd/max8998.h +++ b/include/linux/mfd/max8998.h @@ -87,6 +87,15 @@ struct max8998_regulator_data { * @wakeup: Allow to wake up from suspend * @rtc_delay: LP3974 RTC chip bug that requires delay after a register * write before reading it. + * @eoc: End of Charge Level in percent: 10% ~ 45% by 5% step + * If it equals 0, leave it unchanged. + * Otherwise, it is a invalid value. + * @restart: Restart Level in mV: 100, 150, 200, and -1 for disable. + * If it equals 0, leave it unchanged. + * Otherwise, it is a invalid value. + * @timeout: Full Timeout in hours: 5, 6, 7, and -1 for disable. + * If it equals 0, leave it unchanged. + * Otherwise, leave it unchanged. */ struct max8998_platform_data { struct max8998_regulator_data *regulators; @@ -107,6 +116,9 @@ struct max8998_platform_data { int buck2_default_idx; bool wakeup; bool rtc_delay; + int eoc; + int restart; + int timeout; }; #endif /* __LINUX_MFD_MAX8998_H */ -- cgit v1.2.3 From 086ef502c202503a19a491838098157cdab6238e Mon Sep 17 00:00:00 2001 From: Donggeun Kim Date: Thu, 30 Jun 2011 18:07:41 +0900 Subject: power_supply: MAX17042: Support additional properties This patch supports additional properties (PRESENT, CYCLE_COUNT, VOLTAGE_MAX, VOLTAGE_MIN_DESIGN, CURRENT_NOW, CURRENT_AVG, CHARGE_FULL, and TEMP). Plus, initialization code for registers is added. Signed-off-by: Donggeun Kim Signed-off-by: MyungJoo Ham Signed-off-by: KyungMin Park Signed-off-by: Anton Vorontsov --- include/linux/power/max17042_battery.h | 91 ++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) (limited to 'include') diff --git a/include/linux/power/max17042_battery.h b/include/linux/power/max17042_battery.h index 7995deb8bfc1..fe99211fb2b8 100644 --- a/include/linux/power/max17042_battery.h +++ b/include/linux/power/max17042_battery.h @@ -23,8 +23,99 @@ #ifndef __MAX17042_BATTERY_H_ #define __MAX17042_BATTERY_H_ +#define MAX17042_STATUS_BattAbsent (1 << 3) +#define MAX17042_BATTERY_FULL (100) +#define MAX17042_DEFAULT_SNS_RESISTOR (10000) + +enum max17042_register { + MAX17042_STATUS = 0x00, + MAX17042_VALRT_Th = 0x01, + MAX17042_TALRT_Th = 0x02, + MAX17042_SALRT_Th = 0x03, + MAX17042_AtRate = 0x04, + MAX17042_RepCap = 0x05, + MAX17042_RepSOC = 0x06, + MAX17042_Age = 0x07, + MAX17042_TEMP = 0x08, + MAX17042_VCELL = 0x09, + MAX17042_Current = 0x0A, + MAX17042_AvgCurrent = 0x0B, + MAX17042_Qresidual = 0x0C, + MAX17042_SOC = 0x0D, + MAX17042_AvSOC = 0x0E, + MAX17042_RemCap = 0x0F, + MAX17402_FullCAP = 0x10, + MAX17042_TTE = 0x11, + MAX17042_V_empty = 0x12, + + MAX17042_RSLOW = 0x14, + + MAX17042_AvgTA = 0x16, + MAX17042_Cycles = 0x17, + MAX17042_DesignCap = 0x18, + MAX17042_AvgVCELL = 0x19, + MAX17042_MinMaxTemp = 0x1A, + MAX17042_MinMaxVolt = 0x1B, + MAX17042_MinMaxCurr = 0x1C, + MAX17042_CONFIG = 0x1D, + MAX17042_ICHGTerm = 0x1E, + MAX17042_AvCap = 0x1F, + MAX17042_ManName = 0x20, + MAX17042_DevName = 0x21, + MAX17042_DevChem = 0x22, + + MAX17042_TempNom = 0x24, + MAX17042_TempCold = 0x25, + MAX17042_TempHot = 0x26, + MAX17042_AIN = 0x27, + MAX17042_LearnCFG = 0x28, + MAX17042_SHFTCFG = 0x29, + MAX17042_RelaxCFG = 0x2A, + MAX17042_MiscCFG = 0x2B, + MAX17042_TGAIN = 0x2C, + MAx17042_TOFF = 0x2D, + MAX17042_CGAIN = 0x2E, + MAX17042_COFF = 0x2F, + + MAX17042_Q_empty = 0x33, + MAX17042_T_empty = 0x34, + + MAX17042_RCOMP0 = 0x38, + MAX17042_TempCo = 0x39, + MAX17042_Rx = 0x3A, + MAX17042_T_empty0 = 0x3B, + MAX17042_TaskPeriod = 0x3C, + MAX17042_FSTAT = 0x3D, + + MAX17042_SHDNTIMER = 0x3F, + + MAX17042_VFRemCap = 0x4A, + + MAX17042_QH = 0x4D, + MAX17042_QL = 0x4E, +}; + +/* + * used for setting a register to a desired value + * addr : address for a register + * data : setting value for the register + */ +struct max17042_reg_data { + u8 addr; + u16 data; +}; + struct max17042_platform_data { + struct max17042_reg_data *init_data; + int num_init_data; /* Number of enties in init_data array */ bool enable_current_sense; + + /* + * R_sns in micro-ohms. + * default 10000 (if r_sns = 0) as it is the recommended value by + * the datasheet although it can be changed by board designers. + */ + unsigned int r_sns; }; #endif /* __MAX17042_BATTERY_H_ */ -- cgit v1.2.3 From d46db3d58233be4be980eb1e42eebe7808bcabab Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Wed, 4 May 2011 19:54:37 -0600 Subject: writeback: make writeback_control.nr_to_write straight Pass struct wb_writeback_work all the way down to writeback_sb_inodes(), and initialize the struct writeback_control there. struct writeback_control is basically designed to control writeback of a single file, but we keep abuse it for writing multiple files in writeback_sb_inodes() and its callers. It immediately clean things up, e.g. suddenly wbc.nr_to_write vs work->nr_pages starts to make sense, and instead of saving and restoring pages_skipped in writeback_sb_inodes it can always start with a clean zero value. It also makes a neat IO pattern change: large dirty files are now written in the full 4MB writeback chunk size, rather than whatever remained quota in wbc->nr_to_write. Acked-by: Jan Kara Proposed-by: Christoph Hellwig Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 6 +----- include/trace/events/writeback.h | 39 ++++++++++++++++++++++++++++----------- 2 files changed, 29 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 2f1b512bd6e0..df1b7f18f100 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -24,12 +24,9 @@ enum writeback_sync_modes { */ struct writeback_control { enum writeback_sync_modes sync_mode; - unsigned long *older_than_this; /* If !NULL, only write back inodes - older than this */ long nr_to_write; /* Write this many pages, and decrement this for each page written */ long pages_skipped; /* Pages which were not written */ - long inodes_written; /* # of inodes written (at least) */ /* * For a_ops->writepages(): is start or end are non-zero then this is @@ -56,8 +53,7 @@ void writeback_inodes_sb_nr(struct super_block *, unsigned long nr); int writeback_inodes_sb_if_idle(struct super_block *); int writeback_inodes_sb_nr_if_idle(struct super_block *, unsigned long nr); void sync_inodes_sb(struct super_block *); -void writeback_inodes_wb(struct bdi_writeback *wb, - struct writeback_control *wbc); +long writeback_inodes_wb(struct bdi_writeback *wb, long nr_pages); long wb_do_writeback(struct bdi_writeback *wb, int force_wait); void wakeup_flusher_threads(long nr_pages); diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 205d14919ef2..3e7662a0cfa3 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -62,6 +62,9 @@ DEFINE_EVENT(writeback_work_class, name, \ DEFINE_WRITEBACK_WORK_EVENT(writeback_nothread); DEFINE_WRITEBACK_WORK_EVENT(writeback_queue); DEFINE_WRITEBACK_WORK_EVENT(writeback_exec); +DEFINE_WRITEBACK_WORK_EVENT(writeback_start); +DEFINE_WRITEBACK_WORK_EVENT(writeback_written); +DEFINE_WRITEBACK_WORK_EVENT(writeback_wait); TRACE_EVENT(writeback_pages_written, TP_PROTO(long pages_written), @@ -101,6 +104,30 @@ DEFINE_WRITEBACK_EVENT(writeback_bdi_register); DEFINE_WRITEBACK_EVENT(writeback_bdi_unregister); DEFINE_WRITEBACK_EVENT(writeback_thread_start); DEFINE_WRITEBACK_EVENT(writeback_thread_stop); +DEFINE_WRITEBACK_EVENT(balance_dirty_start); +DEFINE_WRITEBACK_EVENT(balance_dirty_wait); + +TRACE_EVENT(balance_dirty_written, + + TP_PROTO(struct backing_dev_info *bdi, int written), + + TP_ARGS(bdi, written), + + TP_STRUCT__entry( + __array(char, name, 32) + __field(int, written) + ), + + TP_fast_assign( + strncpy(__entry->name, dev_name(bdi->dev), 32); + __entry->written = written; + ), + + TP_printk("bdi %s written %d", + __entry->name, + __entry->written + ) +); DECLARE_EVENT_CLASS(wbc_class, TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), @@ -114,7 +141,6 @@ DECLARE_EVENT_CLASS(wbc_class, __field(int, for_background) __field(int, for_reclaim) __field(int, range_cyclic) - __field(unsigned long, older_than_this) __field(long, range_start) __field(long, range_end) ), @@ -128,14 +154,12 @@ DECLARE_EVENT_CLASS(wbc_class, __entry->for_background = wbc->for_background; __entry->for_reclaim = wbc->for_reclaim; __entry->range_cyclic = wbc->range_cyclic; - __entry->older_than_this = wbc->older_than_this ? - *wbc->older_than_this : 0; __entry->range_start = (long)wbc->range_start; __entry->range_end = (long)wbc->range_end; ), TP_printk("bdi %s: towrt=%ld skip=%ld mode=%d kupd=%d " - "bgrd=%d reclm=%d cyclic=%d older=0x%lx " + "bgrd=%d reclm=%d cyclic=%d " "start=0x%lx end=0x%lx", __entry->name, __entry->nr_to_write, @@ -145,7 +169,6 @@ DECLARE_EVENT_CLASS(wbc_class, __entry->for_background, __entry->for_reclaim, __entry->range_cyclic, - __entry->older_than_this, __entry->range_start, __entry->range_end) ) @@ -154,12 +177,6 @@ DECLARE_EVENT_CLASS(wbc_class, DEFINE_EVENT(wbc_class, name, \ TP_PROTO(struct writeback_control *wbc, struct backing_dev_info *bdi), \ TP_ARGS(wbc, bdi)) -DEFINE_WBC_EVENT(wbc_writeback_start); -DEFINE_WBC_EVENT(wbc_writeback_written); -DEFINE_WBC_EVENT(wbc_writeback_wait); -DEFINE_WBC_EVENT(wbc_balance_dirty_start); -DEFINE_WBC_EVENT(wbc_balance_dirty_written); -DEFINE_WBC_EVENT(wbc_balance_dirty_wait); DEFINE_WBC_EVENT(wbc_writepage); TRACE_EVENT(writeback_queue_io, -- cgit v1.2.3 From f7d2b1ecd0c714adefc7d3a942ef87beb828a763 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 8 Dec 2010 22:44:24 -0600 Subject: writeback: account per-bdi accumulated written pages Introduce the BDI_WRITTEN counter. It will be used for estimating the bdi's write bandwidth. Peter Zijlstra : Move BDI_WRITTEN accounting into __bdi_writeout_inc(). This will cover and fix fuse, which only calls bdi_writeout_inc(). CC: Michael Rubin Reviewed-by: KOSAKI Motohiro Signed-off-by: Jan Kara Signed-off-by: Wu Fengguang --- include/linux/backing-dev.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 47feb2c4706a..469d56443c63 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -40,6 +40,7 @@ typedef int (congested_fn)(void *, int); enum bdi_stat_item { BDI_RECLAIMABLE, BDI_WRITEBACK, + BDI_WRITTEN, NR_BDI_STAT_ITEMS }; -- cgit v1.2.3 From e98be2d599207c6b31e9bb340d52a231b2f3662d Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sun, 29 Aug 2010 11:22:30 -0600 Subject: writeback: bdi write bandwidth estimation The estimation value will start from 100MB/s and adapt to the real bandwidth in seconds. It tries to update the bandwidth only when disk is fully utilized. Any inactive period of more than one second will be skipped. The estimated bandwidth will be reflecting how fast the device can writeout when _fully utilized_, and won't drop to 0 when it goes idle. The value will remain constant at disk idle time. At busy write time, if not considering fluctuations, it will also remain high unless be knocked down by possible concurrent reads that compete for the disk time and bandwidth with async writes. The estimation is not done purely in the flusher because there is no guarantee for write_cache_pages() to return timely to update bandwidth. The bdi->avg_write_bandwidth smoothing is very effective for filtering out sudden spikes, however may be a little biased in long term. The overheads are low because the bdi bandwidth update only occurs at 200ms intervals. The 200ms update interval is suitable, because it's not possible to get the real bandwidth for the instance at all, due to large fluctuations. The NFS commits can be as large as seconds worth of data. One XFS completion may be as large as half second worth of data if we are going to increase the write chunk to half second worth of data. In ext4, fluctuations with time period of around 5 seconds is observed. And there is another pattern of irregular periods of up to 20 seconds on SSD tests. That's why we are not only doing the estimation at 200ms intervals, but also averaging them over a period of 3 seconds and then go further to do another level of smoothing in avg_write_bandwidth. CC: Li Shaohua CC: Peter Zijlstra Signed-off-by: Wu Fengguang --- include/linux/backing-dev.h | 5 +++++ include/linux/writeback.h | 3 +++ 2 files changed, 8 insertions(+) (limited to 'include') diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 469d56443c63..a008982e7c08 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -73,6 +73,11 @@ struct backing_dev_info { struct percpu_counter bdi_stat[NR_BDI_STAT_ITEMS]; + unsigned long bw_time_stamp; /* last time write bw is updated */ + unsigned long written_stamp; /* pages written at bw_time_stamp */ + unsigned long write_bandwidth; /* the estimated write bandwidth */ + unsigned long avg_write_bandwidth; /* further smoothed write bw */ + struct prop_local_percpu completions; int dirty_exceeded; diff --git a/include/linux/writeback.h b/include/linux/writeback.h index df1b7f18f100..66862f2d90c8 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -118,6 +118,9 @@ void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty); unsigned long bdi_dirty_limit(struct backing_dev_info *bdi, unsigned long dirty); +void __bdi_update_bandwidth(struct backing_dev_info *bdi, + unsigned long start_time); + void page_writeback_init(void); void balance_dirty_pages_ratelimited_nr(struct address_space *mapping, unsigned long nr_pages_dirtied); -- cgit v1.2.3 From c42843f2f0bbc9d716a32caf667d18fc2bf3bc4c Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Wed, 2 Mar 2011 15:54:09 -0600 Subject: writeback: introduce smoothed global dirty limit The start of a heavy weight application (ie. KVM) may instantly knock down determine_dirtyable_memory() if the swap is not enabled or full. global_dirty_limits() and bdi_dirty_limit() will in turn get global/bdi dirty thresholds that are _much_ lower than the global/bdi dirty pages. balance_dirty_pages() will then heavily throttle all dirtiers including the light ones, until the dirty pages drop below the new dirty thresholds. During this _deep_ dirty-exceeded state, the system may appear rather unresponsive to the users. About "deep" dirty-exceeded: task_dirty_limit() assigns 1/8 lower dirty threshold to heavy dirtiers than light ones, and the dirty pages will be throttled around the heavy dirtiers' dirty threshold and reasonably below the light dirtiers' dirty threshold. In this state, only the heavy dirtiers will be throttled and the dirty pages are carefully controlled to not exceed the light dirtiers' dirty threshold. However if the threshold itself suddenly drops below the number of dirty pages, the light dirtiers will get heavily throttled. So introduce global_dirty_limit for tracking the global dirty threshold with policies - follow downwards slowly - follow up in one shot global_dirty_limit can effectively mask out the impact of sudden drop of dirtyable memory. It will be used in the next patch for two new type of dirty limits. Note that the new dirty limits are not going to avoid throttling the light dirtiers, but could limit their sleep time to 200ms. Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 66862f2d90c8..e9d371b6053b 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -84,6 +84,8 @@ static inline void laptop_sync_completion(void) { } #endif void throttle_vm_writeout(gfp_t gfp_mask); +extern unsigned long global_dirty_limit; + /* These are exported to sysctl. */ extern int dirty_background_ratio; extern unsigned long dirty_background_bytes; @@ -119,6 +121,10 @@ unsigned long bdi_dirty_limit(struct backing_dev_info *bdi, unsigned long dirty); void __bdi_update_bandwidth(struct backing_dev_info *bdi, + unsigned long thresh, + unsigned long dirty, + unsigned long bdi_thresh, + unsigned long bdi_dirty, unsigned long start_time); void page_writeback_init(void); -- cgit v1.2.3 From ffd1f609ab10532e8137b4b981fdf903ef4d0b32 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sun, 19 Jun 2011 22:18:42 -0600 Subject: writeback: introduce max-pause and pass-good dirty limits The max-pause limit helps to keep the sleep time inside balance_dirty_pages() within MAX_PAUSE=200ms. The 200ms max sleep means per task rate limit of 8pages/200ms=160KB/s when dirty exceeded, which normally is enough to stop dirtiers from continue pushing the dirty pages high, unless there are a sufficient large number of slow dirtiers (eg. 500 tasks doing 160KB/s will still sum up to 80MB/s, exceeding the write bandwidth of a slow disk and hence accumulating more and more dirty pages). The pass-good limit helps to let go of the good bdi's in the presence of a blocked bdi (ie. NFS server not responding) or slow USB disk which for some reason build up a large number of initial dirty pages that refuse to go away anytime soon. For example, given two bdi's A and B and the initial state bdi_thresh_A = dirty_thresh / 2 bdi_thresh_B = dirty_thresh / 2 bdi_dirty_A = dirty_thresh / 2 bdi_dirty_B = dirty_thresh / 2 Then A get blocked, after a dozen seconds bdi_thresh_A = 0 bdi_thresh_B = dirty_thresh bdi_dirty_A = dirty_thresh / 2 bdi_dirty_B = dirty_thresh / 2 The (bdi_dirty_B < bdi_thresh_B) test is now useless and the dirty pages will be effectively throttled by condition (nr_dirty < dirty_thresh). This has two problems: (1) we lose the protections for light dirtiers (2) balance_dirty_pages() effectively becomes IO-less because the (bdi_nr_reclaimable > bdi_thresh) test won't be true. This is good for IO, but balance_dirty_pages() loses an important way to break out of the loop which leads to more spread out throttle delays. DIRTY_PASSGOOD_AREA can eliminate the above issues. The only problem is, DIRTY_PASSGOOD_AREA needs to be defined as 2 to fully cover the above example while this patch uses the more conservative value 8 so as not to surprise people with too many dirty pages than expected. The max-pause limit won't noticeably impact the speed dirty pages are knocked down when there is a sudden drop of global/bdi dirty thresholds. Because the heavy dirties will be throttled below 160KB/s which is slow enough. It does help to avoid long dirty throttle delays and especially will make light dirtiers more responsive. Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index e9d371b6053b..b625073b80c8 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -7,6 +7,27 @@ #include #include +/* + * The 1/16 region above the global dirty limit will be put to maximum pauses: + * + * (limit, limit + limit/DIRTY_MAXPAUSE_AREA) + * + * The 1/16 region above the max-pause region, dirty exceeded bdi's will be put + * to loops: + * + * (limit + limit/DIRTY_MAXPAUSE_AREA, limit + limit/DIRTY_PASSGOOD_AREA) + * + * Further beyond, all dirtier tasks will enter a loop waiting (possibly long + * time) for the dirty pages to drop, unless written enough pages. + * + * The global dirty threshold is normally equal to the global dirty limit, + * except when the system suddenly allocates a lot of anonymous memory and + * knocks down the global dirty threshold quickly, in which case the global + * dirty limit will follow down slowly to prevent livelocking all dirtier tasks. + */ +#define DIRTY_MAXPAUSE_AREA 16 +#define DIRTY_PASSGOOD_AREA 8 + struct backing_dev_info; /* -- cgit v1.2.3 From e1cbe236013c82bcf9a156e98d7b47efb89d2674 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Mon, 6 Dec 2010 22:34:29 -0600 Subject: writeback: trace global_dirty_state Add trace event balance_dirty_state for showing the global dirty page counts and thresholds at each global_dirty_limits() invocation. This will cover the callers throttle_vm_writeout(), over_bground_thresh() and each balance_dirty_pages() loop. Signed-off-by: Wu Fengguang --- include/trace/events/writeback.h | 46 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) (limited to 'include') diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h index 3e7662a0cfa3..6bca4cc0063c 100644 --- a/include/trace/events/writeback.h +++ b/include/trace/events/writeback.h @@ -204,6 +204,52 @@ TRACE_EVENT(writeback_queue_io, __entry->moved) ); +TRACE_EVENT(global_dirty_state, + + TP_PROTO(unsigned long background_thresh, + unsigned long dirty_thresh + ), + + TP_ARGS(background_thresh, + dirty_thresh + ), + + TP_STRUCT__entry( + __field(unsigned long, nr_dirty) + __field(unsigned long, nr_writeback) + __field(unsigned long, nr_unstable) + __field(unsigned long, background_thresh) + __field(unsigned long, dirty_thresh) + __field(unsigned long, dirty_limit) + __field(unsigned long, nr_dirtied) + __field(unsigned long, nr_written) + ), + + TP_fast_assign( + __entry->nr_dirty = global_page_state(NR_FILE_DIRTY); + __entry->nr_writeback = global_page_state(NR_WRITEBACK); + __entry->nr_unstable = global_page_state(NR_UNSTABLE_NFS); + __entry->nr_dirtied = global_page_state(NR_DIRTIED); + __entry->nr_written = global_page_state(NR_WRITTEN); + __entry->background_thresh = background_thresh; + __entry->dirty_thresh = dirty_thresh; + __entry->dirty_limit = global_dirty_limit; + ), + + TP_printk("dirty=%lu writeback=%lu unstable=%lu " + "bg_thresh=%lu thresh=%lu limit=%lu " + "dirtied=%lu written=%lu", + __entry->nr_dirty, + __entry->nr_writeback, + __entry->nr_unstable, + __entry->background_thresh, + __entry->dirty_thresh, + __entry->dirty_limit, + __entry->nr_dirtied, + __entry->nr_written + ) +); + DECLARE_EVENT_CLASS(writeback_congest_waited_template, TP_PROTO(unsigned int usec_timeout, unsigned int usec_delayed), -- cgit v1.2.3 From 1a12d8bd7b2998be01ee55edb64e7473728abb9c Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Sun, 29 Aug 2010 13:28:09 -0600 Subject: writeback: scale IO chunk size up to half device bandwidth Originally, MAX_WRITEBACK_PAGES was hard-coded to 1024 because of a concern of not holding I_SYNC for too long. (At least, that was the comment previously.) This doesn't make sense now because the only time we wait for I_SYNC is if we are calling sync or fsync, and in that case we need to write out all of the data anyway. Previously there may have been other code paths that waited on I_SYNC, but not any more. -- Theodore Ts'o So remove the MAX_WRITEBACK_PAGES constraint. The writeback pages will adapt to as large as the storage device can write within 500ms. XFS is observed to do IO completions in a batch, and the batch size is equal to the write chunk size. To avoid dirty pages to suddenly drop out of balance_dirty_pages()'s dirty control scope and create large fluctuations, the chunk size is also limited to half the control scope. The balance_dirty_pages() control scrope is [(background_thresh + dirty_thresh) / 2, dirty_thresh] which is by default [15%, 20%] of global dirty pages, whose range size is dirty_thresh / DIRTY_FULL_SCOPE. The adpative write chunk size will be rounded to the nearest 4MB boundary. http://bugzilla.kernel.org/show_bug.cgi?id=13930 CC: Theodore Ts'o CC: Dave Chinner CC: Chris Mason CC: Peter Zijlstra Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index b625073b80c8..f1bfa12ea246 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -8,6 +8,10 @@ #include /* + * The 1/4 region under the global dirty thresh is for smooth dirty throttling: + * + * (thresh - thresh/DIRTY_FULL_SCOPE, thresh) + * * The 1/16 region above the global dirty limit will be put to maximum pauses: * * (limit, limit + limit/DIRTY_MAXPAUSE_AREA) @@ -25,9 +29,16 @@ * knocks down the global dirty threshold quickly, in which case the global * dirty limit will follow down slowly to prevent livelocking all dirtier tasks. */ +#define DIRTY_SCOPE 8 +#define DIRTY_FULL_SCOPE (DIRTY_SCOPE / 2) #define DIRTY_MAXPAUSE_AREA 16 #define DIRTY_PASSGOOD_AREA 8 +/* + * 4MB minimal write chunk size + */ +#define MIN_WRITEBACK_PAGES (4096UL >> (PAGE_CACHE_SHIFT - 10)) + struct backing_dev_info; /* -- cgit v1.2.3 From d72fe7883f9f835011cb581aea13e91c6fa2e31d Mon Sep 17 00:00:00 2001 From: Andy Green Date: Sun, 10 Jul 2011 05:27:14 -0600 Subject: I2C: OMAP2+: Introduce I2C IP versioning constants These represent the two kinds of (incompatible) OMAP I2C peripheral unit in use so far. The constants are in linux/i2c-omap.h so the omap i2c driver can have them too. Cc: patches@linaro.org Cc: Ben Dooks Reported-by: Peter Maydell Signed-off-by: Andy Green Signed-off-by: Tony Lindgren Signed-off-by: Kevin Hilman Signed-off-by: Paul Walmsley --- include/linux/i2c-omap.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/i2c-omap.h b/include/linux/i2c-omap.h index 7472449cbb74..701886da76c7 100644 --- a/include/linux/i2c-omap.h +++ b/include/linux/i2c-omap.h @@ -3,6 +3,18 @@ #include +/* + * Version 2 of the I2C peripheral unit has a different register + * layout and extra registers. The ID register in the V2 peripheral + * unit on the OMAP4430 reports the same ID as the V1 peripheral + * unit on the OMAP3530, so we must inform the driver which IP + * version we know it is running on from platform / cpu-specific + * code using these constants in the hwmod class definition. + */ + +#define OMAP_I2C_IP_VERSION_1 1 +#define OMAP_I2C_IP_VERSION_2 2 + struct omap_i2c_bus_platform_data { u32 clkrate; void (*set_mpu_wkup_lat)(struct device *dev, long set); -- cgit v1.2.3 From 5a9aaf0cf89dfb776f45b7ef878fd1508faadbf7 Mon Sep 17 00:00:00 2001 From: Andy Green Date: Sun, 10 Jul 2011 05:27:15 -0600 Subject: I2C: OMAP1/OMAP2+: create omap I2C functionality flags for each cpu_... test These represent the 8 kinds of implementation functionality that up until now were inferred by the 16 remaining cpu_...() tests in the omap i2c driver. Changed to use BIT() as suggested by Balaji T Krishnamoorthy. Cc: patches@linaro.org Cc: Ben Dooks Reported-by: Peter Maydell Signed-off-by: Andy Green Signed-off-by: Tony Lindgren Signed-off-by: Kevin Hilman Signed-off-by: Paul Walmsley --- include/linux/i2c-omap.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include') diff --git a/include/linux/i2c-omap.h b/include/linux/i2c-omap.h index 701886da76c7..0aa0cbd676f7 100644 --- a/include/linux/i2c-omap.h +++ b/include/linux/i2c-omap.h @@ -15,6 +15,21 @@ #define OMAP_I2C_IP_VERSION_1 1 #define OMAP_I2C_IP_VERSION_2 2 +/* struct omap_i2c_bus_platform_data .flags meanings */ + +#define OMAP_I2C_FLAG_NO_FIFO BIT(0) +#define OMAP_I2C_FLAG_SIMPLE_CLOCK BIT(1) +#define OMAP_I2C_FLAG_16BIT_DATA_REG BIT(2) +#define OMAP_I2C_FLAG_RESET_REGS_POSTIDLE BIT(3) +#define OMAP_I2C_FLAG_APPLY_ERRATA_I207 BIT(4) +#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5) +#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK BIT(6) +/* how the CPU address bus must be translated for I2C unit access */ +#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0 +#define OMAP_I2C_FLAG_BUS_SHIFT_1 BIT(7) +#define OMAP_I2C_FLAG_BUS_SHIFT_2 BIT(8) +#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7 + struct omap_i2c_bus_platform_data { u32 clkrate; void (*set_mpu_wkup_lat)(struct device *dev, long set); -- cgit v1.2.3 From 4862fd6047ed02e2726667c54d35f538eecc56aa Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sun, 10 Jul 2011 22:05:08 -0400 Subject: jbd2: remove jbd2_dev_to_name() from jbd2 tracepoints Using function calls in TP_printk causes perf heartburn, so print the MAJOR/MINOR device numbers instead. Signed-off-by: "Theodore Ts'o" --- include/linux/jbd2.h | 6 ------ include/trace/events/jbd2.h | 36 +++++++++++++++++++----------------- 2 files changed, 19 insertions(+), 23 deletions(-) (limited to 'include') diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index d087c2e7b2aa..38f307b8c334 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -1329,12 +1329,6 @@ extern int jbd_blocks_per_page(struct inode *inode); #define BUFFER_TRACE2(bh, bh2, info) do {} while (0) #define JBUFFER_TRACE(jh, info) do {} while (0) -/* - * jbd2_dev_to_name is a utility function used by the jbd2 and ext4 - * tracing infrastructure to map a dev_t to a device name. - */ -extern const char *jbd2_dev_to_name(dev_t device); - #endif /* __KERNEL__ */ #endif /* _LINUX_JBD2_H */ diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h index bf16545cc977..75964412ddbb 100644 --- a/include/trace/events/jbd2.h +++ b/include/trace/events/jbd2.h @@ -26,8 +26,8 @@ TRACE_EVENT(jbd2_checkpoint, __entry->result = result; ), - TP_printk("dev %s result %d", - jbd2_dev_to_name(__entry->dev), __entry->result) + TP_printk("dev %d,%d result %d", + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->result) ); DECLARE_EVENT_CLASS(jbd2_commit, @@ -48,9 +48,9 @@ DECLARE_EVENT_CLASS(jbd2_commit, __entry->transaction = commit_transaction->t_tid; ), - TP_printk("dev %s transaction %d sync %d", - jbd2_dev_to_name(__entry->dev), __entry->transaction, - __entry->sync_commit) + TP_printk("dev %d,%d transaction %d sync %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->transaction, __entry->sync_commit) ); DEFINE_EVENT(jbd2_commit, jbd2_start_commit, @@ -100,9 +100,9 @@ TRACE_EVENT(jbd2_end_commit, __entry->head = journal->j_tail_sequence; ), - TP_printk("dev %s transaction %d sync %d head %d", - jbd2_dev_to_name(__entry->dev), __entry->transaction, - __entry->sync_commit, __entry->head) + TP_printk("dev %d,%d transaction %d sync %d head %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->transaction, __entry->sync_commit, __entry->head) ); TRACE_EVENT(jbd2_submit_inode_data, @@ -120,8 +120,9 @@ TRACE_EVENT(jbd2_submit_inode_data, __entry->ino = inode->i_ino; ), - TP_printk("dev %s ino %lu", - jbd2_dev_to_name(__entry->dev), (unsigned long) __entry->ino) + TP_printk("dev %d,%d ino %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long) __entry->ino) ); TRACE_EVENT(jbd2_run_stats, @@ -156,9 +157,9 @@ TRACE_EVENT(jbd2_run_stats, __entry->blocks_logged = stats->rs_blocks_logged; ), - TP_printk("dev %s tid %lu wait %u running %u locked %u flushing %u " + TP_printk("dev %d,%d tid %lu wait %u running %u locked %u flushing %u " "logging %u handle_count %u blocks %u blocks_logged %u", - jbd2_dev_to_name(__entry->dev), __entry->tid, + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->tid, jiffies_to_msecs(__entry->wait), jiffies_to_msecs(__entry->running), jiffies_to_msecs(__entry->locked), @@ -192,9 +193,9 @@ TRACE_EVENT(jbd2_checkpoint_stats, __entry->dropped = stats->cs_dropped; ), - TP_printk("dev %s tid %lu chp_time %u forced_to_close %u " + TP_printk("dev %d,%d tid %lu chp_time %u forced_to_close %u " "written %u dropped %u", - jbd2_dev_to_name(__entry->dev), __entry->tid, + MAJOR(__entry->dev), MINOR(__entry->dev), __entry->tid, jiffies_to_msecs(__entry->chp_time), __entry->forced_to_close, __entry->written, __entry->dropped) ); @@ -222,9 +223,10 @@ TRACE_EVENT(jbd2_cleanup_journal_tail, __entry->freed = freed; ), - TP_printk("dev %s from %u to %u offset %lu freed %lu", - jbd2_dev_to_name(__entry->dev), __entry->tail_sequence, - __entry->first_tid, __entry->block_nr, __entry->freed) + TP_printk("dev %d,%d from %u to %u offset %lu freed %lu", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->tail_sequence, __entry->first_tid, + __entry->block_nr, __entry->freed) ); #endif /* _TRACE_JBD2_H */ -- cgit v1.2.3 From 12706394bcaa48e3d5e19c97d7b4e5683ebb12fb Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sun, 10 Jul 2011 22:37:50 -0400 Subject: ext4: add tracepoint for ext4_journal_start This will help debug who is responsible for starting a jbd2 transaction. Signed-off-by: "Theodore Ts'o" --- include/trace/events/ext4.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'include') diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 5ce2b2f5f524..6f27a59fc90d 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -1520,6 +1520,28 @@ TRACE_EVENT(ext4_load_inode, (unsigned long) __entry->ino) ); +TRACE_EVENT(ext4_journal_start, + TP_PROTO(struct super_block *sb, int nblocks, unsigned long IP), + + TP_ARGS(sb, nblocks, IP), + + TP_STRUCT__entry( + __field( dev_t, dev ) + __field( int, nblocks ) + __field(unsigned long, ip ) + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->nblocks = nblocks; + __entry->ip = IP; + ), + + TP_printk("dev %d,%d nblocks %d caller %pF", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->nblocks, (void *)__entry->ip) +); + #endif /* _TRACE_EXT4_H */ /* This part must be outside protection */ -- cgit v1.2.3 From b3d4c2b10b68d205d3eb1b5c17dcb4649a502798 Mon Sep 17 00:00:00 2001 From: Tao Ma Date: Mon, 11 Jul 2011 00:01:52 -0400 Subject: ext4: Add new ext4 trim tracepoints Add ext4_trim_extent and ext4_trim_all_free. Reviewed-by: Lukas Czerner Signed-off-by: Tao Ma Signed-off-by: "Theodore Ts'o" --- include/trace/events/ext4.h | 49 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) (limited to 'include') diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 6f27a59fc90d..51d88139eb8c 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -1542,6 +1542,55 @@ TRACE_EVENT(ext4_journal_start, __entry->nblocks, (void *)__entry->ip) ); +DECLARE_EVENT_CLASS(ext4__trim, + TP_PROTO(struct super_block *sb, + ext4_group_t group, + ext4_grpblk_t start, + ext4_grpblk_t len), + + TP_ARGS(sb, group, start, len), + + TP_STRUCT__entry( + __field( int, dev_major ) + __field( int, dev_minor ) + __field( __u32, group ) + __field( int, start ) + __field( int, len ) + ), + + TP_fast_assign( + __entry->dev_major = MAJOR(sb->s_dev); + __entry->dev_minor = MINOR(sb->s_dev); + __entry->group = group; + __entry->start = start; + __entry->len = len; + ), + + TP_printk("dev %d,%d group %u, start %d, len %d", + __entry->dev_major, __entry->dev_minor, + __entry->group, __entry->start, __entry->len) +); + +DEFINE_EVENT(ext4__trim, ext4_trim_extent, + + TP_PROTO(struct super_block *sb, + ext4_group_t group, + ext4_grpblk_t start, + ext4_grpblk_t len), + + TP_ARGS(sb, group, start, len) +); + +DEFINE_EVENT(ext4__trim, ext4_trim_all_free, + + TP_PROTO(struct super_block *sb, + ext4_group_t group, + ext4_grpblk_t start, + ext4_grpblk_t len), + + TP_ARGS(sb, group, start, len) +); + #endif /* _TRACE_EXT4_H */ /* This part must be outside protection */ -- cgit v1.2.3 From 1522043bf73ef0e9e61dc512a0f3cdbec1cbf89f Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 6 Jul 2011 02:54:11 +0000 Subject: sh: move CLKDEV_xxx_ID macro to sh_clk.h Signed-off-by: Kuninori Morimoto Signed-off-by: Paul Mundt --- include/linux/sh_clk.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/sh_clk.h b/include/linux/sh_clk.h index 9a52f72527dc..3ccf18648d0a 100644 --- a/include/linux/sh_clk.h +++ b/include/linux/sh_clk.h @@ -147,4 +147,8 @@ int sh_clk_div4_reparent_register(struct clk *clks, int nr, int sh_clk_div6_register(struct clk *clks, int nr); int sh_clk_div6_reparent_register(struct clk *clks, int nr); +#define CLKDEV_CON_ID(_id, _clk) { .con_id = _id, .clk = _clk } +#define CLKDEV_DEV_ID(_id, _clk) { .dev_id = _id, .clk = _clk } +#define CLKDEV_ICK_ID(_cid, _did, _clk) { .con_id = _cid, .dev_id = _did, .clk = _clk } + #endif /* __SH_CLOCK_H */ -- cgit v1.2.3 From f4ffd5e5dfdae561e3ea449eb2160a8d155cdec4 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 29 Jun 2011 11:46:54 -0500 Subject: pci: move microblaze and powerpc pci flag functions into asm-generic Move separate microblaze and powerpc pci flag functions pci_set_flags, pci_add_flags, and pci_has_flag into asm-generic/pci-bridge.h so other archs can use them. Signed-off-by: Rob Herring Acked-by: Nicolas Pitre Acked-by: Benjamin Herrenschmidt Cc: Jesse Barnes Signed-off-by: Michal Simek --- include/asm-generic/pci-bridge.h | 62 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 include/asm-generic/pci-bridge.h (limited to 'include') diff --git a/include/asm-generic/pci-bridge.h b/include/asm-generic/pci-bridge.h new file mode 100644 index 000000000000..4a5aca2a2c94 --- /dev/null +++ b/include/asm-generic/pci-bridge.h @@ -0,0 +1,62 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ +#ifndef _ASM_GENERIC_PCI_BRIDGE_H +#define _ASM_GENERIC_PCI_BRIDGE_H + +#ifdef __KERNEL__ + +enum { + /* Force re-assigning all resources (ignore firmware + * setup completely) + */ + PCI_REASSIGN_ALL_RSRC = 0x00000001, + + /* Re-assign all bus numbers */ + PCI_REASSIGN_ALL_BUS = 0x00000002, + + /* Do not try to assign, just use existing setup */ + PCI_PROBE_ONLY = 0x00000004, + + /* Don't bother with ISA alignment unless the bridge has + * ISA forwarding enabled + */ + PCI_CAN_SKIP_ISA_ALIGN = 0x00000008, + + /* Enable domain numbers in /proc */ + PCI_ENABLE_PROC_DOMAINS = 0x00000010, + /* ... except for domain 0 */ + PCI_COMPAT_DOMAIN_0 = 0x00000020, +}; + +#ifdef CONFIG_PCI +extern unsigned int pci_flags; + +static inline void pci_set_flags(int flags) +{ + pci_flags = flags; +} + +static inline void pci_add_flags(int flags) +{ + pci_flags |= flags; +} + +static inline int pci_has_flag(int flag) +{ + return pci_flags & flag; +} +#else +static inline void pci_set_flags(int flags) { } +static inline void pci_add_flags(int flags) { } +static inline int pci_has_flag(int flag) +{ + return 0; +} +#endif /* CONFIG_PCI */ + +#endif /* __KERNEL__ */ +#endif /* _ASM_GENERIC_PCI_BRIDGE_H */ -- cgit v1.2.3 From 78fe0f41d9937ee62817912ac8d627e06243c269 Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Tue, 31 May 2011 19:05:47 -0400 Subject: NFS: use scope from exchange_id to skip reclaim can be skipped if the "eir_server_scope" from the exchange_id proc differs from previous calls. Also, in the future server_scope will be useful for determining whether client trunking is available Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust --- include/linux/nfs_fs_sb.h | 3 +++ include/linux/nfs_xdr.h | 1 + 2 files changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 87694ca86914..f23b18831559 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -16,6 +16,7 @@ struct nfs4_sequence_args; struct nfs4_sequence_res; struct nfs_server; struct nfs4_minor_version_ops; +struct server_scope; /* * The nfs_client identifies our client state to the server. @@ -83,6 +84,8 @@ struct nfs_client { #ifdef CONFIG_NFS_FSCACHE struct fscache_cookie *fscache; /* client index cache cookie */ #endif + + struct server_scope *server_scope; /* from exchange_id */ }; /* diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 00848d86ffb2..c4d98df884f3 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1060,6 +1060,7 @@ struct server_scope { struct nfs41_exchange_id_res { struct nfs_client *client; u32 flags; + struct server_scope *server_scope; }; struct nfs41_create_session_args { -- cgit v1.2.3 From 6382a44138e7aa40bf52170e7afc014443a24806 Mon Sep 17 00:00:00 2001 From: Weston Andros Adamson Date: Wed, 1 Jun 2011 16:44:44 -0400 Subject: NFS: move pnfs layouts to nfs_server structure Layouts should be tracked per nfs_server (aka superblock) instead of per struct nfs_client, which may have multiple FSIDs associated with it. Signed-off-by: Weston Andros Adamson Signed-off-by: Trond Myklebust --- include/linux/nfs_fs_sb.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index f23b18831559..4faeac8f448a 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -78,7 +78,6 @@ struct nfs_client { /* The flags used for obtaining the clientid during EXCHANGE_ID */ u32 cl_exchange_flags; struct nfs4_session *cl_session; /* sharred session */ - struct list_head cl_layouts; #endif /* CONFIG_NFS_V4 */ #ifdef CONFIG_NFS_FSCACHE @@ -152,6 +151,7 @@ struct nfs_server { struct rb_root openowner_id; struct rb_root lockowner_id; #endif + struct list_head layouts; struct list_head delegations; void (*destroy)(struct nfs_server *); -- cgit v1.2.3 From fca78d6d2c77f87d7dbee89bbe4836a44da881e2 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Thu, 2 Jun 2011 14:59:07 -0400 Subject: NFS: Add SECINFO_NO_NAME procedure If the client is using NFS v4.1, then we can use SECINFO_NO_NAME to find the secflavor for the initial mount. If the server doesn't support SECINFO_NO_NAME then I fall back on the "guess and check" method used for v4.0 mounts. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- include/linux/nfs4.h | 1 + include/linux/nfs_xdr.h | 8 ++++++++ 2 files changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index 504b289ba680..7cc7d5745be5 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -563,6 +563,7 @@ enum { NFSPROC4_CLNT_GETDEVICEINFO, NFSPROC4_CLNT_LAYOUTCOMMIT, NFSPROC4_CLNT_LAYOUTRETURN, + NFSPROC4_CLNT_SECINFO_NO_NAME, }; /* nfs41 types */ diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index c4d98df884f3..7159e1da63b6 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1084,6 +1084,14 @@ struct nfs41_reclaim_complete_args { struct nfs41_reclaim_complete_res { struct nfs4_sequence_res seq_res; }; + +#define SECINFO_STYLE_CURRENT_FH 0 +#define SECINFO_STYLE_PARENT 1 +struct nfs41_secinfo_no_name_args { + int style; + struct nfs4_sequence_args seq_args; +}; + #endif /* CONFIG_NFS_V4_1 */ struct nfs_page; -- cgit v1.2.3 From 7d9747947ae66d8f6a9a9a023a3a5e28df6a536e Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Thu, 2 Jun 2011 14:59:08 -0400 Subject: NFS: Added TEST_STATEID call This patch adds in the xdr for doing a TEST_STATEID call with a single stateid. RFC 5661 allows multiple stateids to be tested in a single call, but only testing one keeps things simpler for now. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- include/linux/nfs4.h | 1 + include/linux/nfs_xdr.h | 10 ++++++++++ 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index 7cc7d5745be5..efe07f7a8765 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -564,6 +564,7 @@ enum { NFSPROC4_CLNT_LAYOUTCOMMIT, NFSPROC4_CLNT_LAYOUTRETURN, NFSPROC4_CLNT_SECINFO_NO_NAME, + NFSPROC4_CLNT_TEST_STATEID, }; /* nfs41 types */ diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 7159e1da63b6..e696c1fb139a 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1092,6 +1092,16 @@ struct nfs41_secinfo_no_name_args { struct nfs4_sequence_args seq_args; }; +struct nfs41_test_stateid_args { + nfs4_stateid *stateid; + struct nfs4_sequence_args seq_args; +}; + +struct nfs41_test_stateid_res { + unsigned int status; + struct nfs4_sequence_res seq_res; +}; + #endif /* CONFIG_NFS_V4_1 */ struct nfs_page; -- cgit v1.2.3 From 9aeda35fd643eba683fdb8dba8907fa796a85dda Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Thu, 2 Jun 2011 14:59:09 -0400 Subject: NFS: added FREE_STATEID call FREE_STATEID is used to tell the server that we want to free a stateid that no longer has any locks associated with it. This allows the client to reclaim locks without encountering edge conditions documented in section 8.4.3 of RFC 5661. Signed-off-by: Bryan Schumaker Signed-off-by: Trond Myklebust --- include/linux/nfs4.h | 1 + include/linux/nfs_xdr.h | 10 ++++++++++ 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index efe07f7a8765..a3c4bc800dce 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -565,6 +565,7 @@ enum { NFSPROC4_CLNT_LAYOUTRETURN, NFSPROC4_CLNT_SECINFO_NO_NAME, NFSPROC4_CLNT_TEST_STATEID, + NFSPROC4_CLNT_FREE_STATEID, }; /* nfs41 types */ diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index e696c1fb139a..209455561749 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1102,6 +1102,16 @@ struct nfs41_test_stateid_res { struct nfs4_sequence_res seq_res; }; +struct nfs41_free_stateid_args { + nfs4_stateid *stateid; + struct nfs4_sequence_args seq_args; +}; + +struct nfs41_free_stateid_res { + unsigned int status; + struct nfs4_sequence_res seq_res; +}; + #endif /* CONFIG_NFS_V4_1 */ struct nfs_page; -- cgit v1.2.3 From 1751c3638f2a07a8c66a803a31791bab9bd3fced Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 10 Jun 2011 13:30:23 -0400 Subject: NFS: Cleanup of the nfs_pageio code in preparation for a pnfs bugfix We need to ensure that the layouts are set up before we can decide to coalesce requests. To do so, we want to further split up the struct nfs_pageio_descriptor operations into an initialisation callback, a coalescing test callback, and a 'do i/o' callback. This patch cleans up the existing callback methods before adding the 'initialisation' callback. Signed-off-by: Trond Myklebust --- include/linux/nfs_page.h | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 25311b3bedf8..d378f08b905e 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -55,6 +55,12 @@ struct nfs_page { struct nfs_writeverf wb_verf; /* Commit cookie */ }; +struct nfs_pageio_descriptor; +struct nfs_pageio_ops { + bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *); + int (*pg_doio)(struct nfs_pageio_descriptor *); +}; + struct nfs_pageio_descriptor { struct list_head pg_list; unsigned long pg_bytes_written; @@ -64,11 +70,10 @@ struct nfs_pageio_descriptor { char pg_moreio; struct inode *pg_inode; - int (*pg_doio)(struct nfs_pageio_descriptor *); + const struct nfs_pageio_ops *pg_ops; int pg_ioflags; int pg_error; struct pnfs_layout_segment *pg_lseg; - bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *); }; #define NFS_WBACK_BUSY(req) (test_bit(PG_BUSY,&(req)->wb_flags)) @@ -85,7 +90,7 @@ extern int nfs_scan_list(struct nfs_inode *nfsi, struct list_head *dst, pgoff_t idx_start, unsigned int npages, int tag); extern void nfs_pageio_init(struct nfs_pageio_descriptor *desc, struct inode *inode, - int (*doio)(struct nfs_pageio_descriptor *desc), + const struct nfs_pageio_ops *pg_ops, size_t bsize, int how); extern int nfs_pageio_add_request(struct nfs_pageio_descriptor *, @@ -100,6 +105,9 @@ extern void nfs_unlock_request(struct nfs_page *req); extern int nfs_set_page_tag_locked(struct nfs_page *req); extern void nfs_clear_page_tag_locked(struct nfs_page *req); +extern int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc); +extern int nfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc); + /* * Lock the page of an asynchronous request without getting a new reference -- cgit v1.2.3 From d8007d4dd6ff8749cc8a4063c3ec87442db76d82 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 10 Jun 2011 13:30:23 -0400 Subject: NFSv4.1: Add an initialisation callback for pNFS Ensure that we always get a layout before setting up the i/o request. Signed-off-by: Trond Myklebust --- include/linux/nfs_page.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index d378f08b905e..9ac2dd158d0b 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -57,6 +57,7 @@ struct nfs_page { struct nfs_pageio_descriptor; struct nfs_pageio_ops { + void (*pg_init)(struct nfs_pageio_descriptor *, struct nfs_page *); bool (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *, struct nfs_page *); int (*pg_doio)(struct nfs_pageio_descriptor *); }; -- cgit v1.2.3 From aa5c01446610f0305f96251d0f9621866b8e5a14 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Mon, 13 Jun 2011 17:52:55 -0400 Subject: pnfs-obj: pnfs_osd_xdr: Remove dead code and cleanup * Some leftovers from ancient times. * This file will only define common types and client API. Remove server from comments Signed-off-by: Boaz Harrosh Signed-off-by: Trond Myklebust --- include/linux/pnfs_osd_xdr.h | 31 ++----------------------------- 1 file changed, 2 insertions(+), 29 deletions(-) (limited to 'include') diff --git a/include/linux/pnfs_osd_xdr.h b/include/linux/pnfs_osd_xdr.h index 76efbdd01622..435dd5fa7453 100644 --- a/include/linux/pnfs_osd_xdr.h +++ b/include/linux/pnfs_osd_xdr.h @@ -41,9 +41,6 @@ #include #include -#include - -#define PNFS_OSD_OSDNAME_MAXSIZE 256 /* * draft-ietf-nfsv4-minorversion-22 @@ -99,12 +96,6 @@ struct pnfs_osd_objid { #define _DEVID_HI(oid_device_id) \ (unsigned long long)be64_to_cpup(((__be64 *)(oid_device_id)->data) + 1) -static inline int -pnfs_osd_objid_xdr_sz(void) -{ - return (NFS4_DEVICEID4_SIZE / 4) + 2 + 2; -} - enum pnfs_osd_version { PNFS_OSD_MISSING = 0, PNFS_OSD_VERSION_1 = 1, @@ -189,8 +180,6 @@ struct pnfs_osd_targetid { struct nfs4_string oti_scsi_device_id; }; -enum { PNFS_OSD_TARGETID_MAX = 1 + PNFS_OSD_OSDNAME_MAXSIZE / 4 }; - /* struct netaddr4 { * // see struct rpcb in RFC1833 * string r_netid<>; // network id @@ -207,12 +196,6 @@ struct pnfs_osd_targetaddr { struct pnfs_osd_net_addr ota_netaddr; }; -enum { - NETWORK_ID_MAX = 16 / 4, - UNIVERSAL_ADDRESS_MAX = 64 / 4, - PNFS_OSD_TARGETADDR_MAX = 3 + NETWORK_ID_MAX + UNIVERSAL_ADDRESS_MAX, -}; - struct pnfs_osd_deviceaddr { struct pnfs_osd_targetid oda_targetid; struct pnfs_osd_targetaddr oda_targetaddr; @@ -222,15 +205,6 @@ struct pnfs_osd_deviceaddr { struct nfs4_string oda_osdname; }; -enum { - ODA_OSDNAME_MAX = PNFS_OSD_OSDNAME_MAXSIZE / 4, - PNFS_OSD_DEVICEADDR_MAX = - PNFS_OSD_TARGETID_MAX + PNFS_OSD_TARGETADDR_MAX + - 2 /*oda_lun*/ + - 1 + OSD_SYSTEMID_LEN + - 1 + ODA_OSDNAME_MAX, -}; - /* LAYOUTCOMMIT: layoutupdate */ /* union pnfs_osd_deltaspaceused4 switch (bool dsu_valid) { @@ -279,7 +253,7 @@ struct pnfs_osd_ioerr { u32 oer_errno; }; -/* OSD XDR API */ +/* OSD XDR Client API */ /* Layout helpers */ /* Layout decoding is done in two parts: * 1. First Call pnfs_osd_xdr_decode_layout_map to read in only the header part @@ -337,8 +311,7 @@ extern int pnfs_osd_xdr_encode_layoutupdate(struct xdr_stream *xdr, struct pnfs_osd_layoutupdate *lou); -/* osd_ioerror encoding/decoding (layout_return) */ -/* Client */ +/* osd_ioerror encoding (layout_return) */ extern __be32 *pnfs_osd_xdr_ioerr_reserve_space(struct xdr_stream *xdr); extern void pnfs_osd_xdr_encode_ioerr(__be32 *p, struct pnfs_osd_ioerr *ioerr); -- cgit v1.2.3 From a56aaa02b1f723e28b41d339ddff02e958d32d43 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 15 Jun 2011 11:59:10 -0400 Subject: NFSv4.1: Clean up layoutreturn Since we take a reference to it, we really ought to pass the a pointer to the layout header in the arguments instead of assuming that NFS_I(inode)->layout will forever point to the correct object. Signed-off-by: Trond Myklebust --- include/linux/nfs_xdr.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 209455561749..956d3576df7f 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -269,9 +269,10 @@ struct nfs4_layoutcommit_data { }; struct nfs4_layoutreturn_args { - __u32 layout_type; + struct pnfs_layout_hdr *layout; struct inode *inode; nfs4_stateid stateid; + __u32 layout_type; struct nfs4_sequence_args seq_args; }; -- cgit v1.2.3 From 6e4efd568574221840ee8dd86f176dc977c1330c Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 12 Jul 2011 13:42:02 -0400 Subject: NFS: Clean up nfs_read_rpcsetup and nfs_write_rpcsetup Split them up into two parts: one which sets up the struct nfs_read/write_data, the other which sets up the actual RPC call or pNFS call. Signed-off-by: Trond Myklebust --- include/linux/nfs_xdr.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 956d3576df7f..5b115956abac 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1126,6 +1126,7 @@ struct nfs_read_data { struct rpc_cred *cred; struct nfs_fattr fattr; /* fattr storage */ struct list_head pages; /* Coalesced read requests */ + struct list_head list; /* lists of struct nfs_read_data */ struct nfs_page *req; /* multi ops per nfs_page */ struct page **pagevec; unsigned int npages; /* Max length of pagevec */ @@ -1149,6 +1150,7 @@ struct nfs_write_data { struct nfs_fattr fattr; struct nfs_writeverf verf; struct list_head pages; /* Coalesced requests we wish to flush */ + struct list_head list; /* lists of struct nfs_write_data */ struct nfs_page *req; /* multi ops per nfs_page */ struct page **pagevec; unsigned int npages; /* Max length of pagevec */ -- cgit v1.2.3 From 58b6542b50ded4243c26c251c0507e5f658642f6 Mon Sep 17 00:00:00 2001 From: Jon Mason Date: Mon, 27 Jun 2011 16:07:50 +0000 Subject: DRM: remove drm_pci_device_is_pcie drm_pci_device_is_pcie duplicates the funcationality of pci_is_pcie. Convert callers of the former to the latter. This has the side benefit of removing an unnecessary search in the PCI configuration space due to using a saved PCIe capability offset. [airlied: update for new callsite] Signed-off-by: Jon Mason Signed-off-by: Dave Airlie --- include/drm/drmP.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'include') diff --git a/include/drm/drmP.h b/include/drm/drmP.h index 4912cb75ae4c..d9c8c6c4639a 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1674,13 +1674,6 @@ static __inline__ int drm_pci_device_is_agp(struct drm_device *dev) return pci_find_capability(dev->pdev, PCI_CAP_ID_AGP); } - -static __inline__ int drm_pci_device_is_pcie(struct drm_device *dev) -{ - return pci_find_capability(dev->pdev, PCI_CAP_ID_EXP); -} - - extern int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver); extern void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver); extern int drm_get_pci_dev(struct pci_dev *pdev, -- cgit v1.2.3 From f5a3d0c4086d1854cbda545092c462b84cba20ce Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Tue, 12 Jul 2011 18:30:52 -0400 Subject: i915: Fix opregion notifications opregion-based platforms will send ACPI video event 0x80 for a range of notification types for legacy compatibility. This is interpreted as a display switch event, which may not be appropriate in the circumstances. When we receive such an event we should make sure that the platform is genuinely requesting a display switch before passing that event through to userspace. Signed-off-by: Matthew Garrett Tested-by: Adam Jackson Signed-off-by: Keith Packard --- include/acpi/video.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/acpi/video.h b/include/acpi/video.h index 0e98e679d3a7..61109f2609fc 100644 --- a/include/acpi/video.h +++ b/include/acpi/video.h @@ -5,6 +5,8 @@ struct acpi_device; +#define ACPI_VIDEO_CLASS "video" + #define ACPI_VIDEO_DISPLAY_CRT 1 #define ACPI_VIDEO_DISPLAY_TV 2 #define ACPI_VIDEO_DISPLAY_DVI 3 -- cgit v1.2.3 From b6a9501658530d8b8374e37f1edb549039a8a260 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Wed, 13 Jul 2011 13:14:19 +0800 Subject: ACPI, APEI, GHES, Support disable GHES at boot time Some machine may have broken firmware so that GHES and firmware first mode should be disabled. This patch adds support to that. Signed-off-by: Huang Ying Reviewed-by: Andi Kleen Reviewed-by: Matthew Garrett Signed-off-by: Len Brown --- include/acpi/apei.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/acpi/apei.h b/include/acpi/apei.h index e67b523a50e1..d40bc5521fcb 100644 --- a/include/acpi/apei.h +++ b/include/acpi/apei.h @@ -18,6 +18,7 @@ extern int hest_disable; extern int erst_disable; +extern int ghes_disable; #ifdef CONFIG_ACPI_APEI void __init acpi_hest_init(void); -- cgit v1.2.3 From eccddd32ced0df8f9130024157bf8d37df860d76 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Wed, 13 Jul 2011 13:14:20 +0800 Subject: ACPI, APEI, Add APEI bit support in generic _OSC call In APEI firmware first mode, hardware error is reported by hardware to firmware firstly, then firmware reports the error to Linux in a GHES error record via POLL/SCI/IRQ/NMI etc. This may result in some issues if OS has no full APEI support. So some firmware implementation will work in a back-compatible mode by default. Where firmware will only notify OS in old-fashion, without GHES record. For example, for a fatal hardware error, only NMI is signaled, no GHES record. To gain full APEI power on these machines, APEI bit in generic _OSC call can be specified to tell firmware that Linux has full APEI support. This patch adds the APEI bit support in generic _OSC call. Signed-off-by: Huang Ying Reviewed-by: Andi Kleen Reviewed-by: Matthew Garrett Signed-off-by: Len Brown --- include/linux/acpi.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 1deb2a73c2da..e19527de6a93 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -280,6 +280,8 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context); #define OSC_SB_CPUHP_OST_SUPPORT 8 #define OSC_SB_APEI_SUPPORT 16 +extern bool osc_sb_apei_support_acked; + /* PCI defined _OSC bits */ /* _OSC DW1 Definition (OS Support Fields) */ #define OSC_EXT_PCI_CONFIG_SUPPORT 1 -- cgit v1.2.3 From 80f40ce0f10e87d9a27f1e29325c6f39245fbcb1 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Tue, 14 Jun 2011 10:45:57 +0800 Subject: ACPICA: Update to version 20110527 Version 20110527. Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- include/acpi/acpixf.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 2ed0a8486c19..06853f76d81b 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -47,7 +47,7 @@ /* Current ACPICA subsystem version in YYYYMMDD format */ -#define ACPI_CA_VERSION 0x20110413 +#define ACPI_CA_VERSION 0x20110527 #include "actypes.h" #include "actbl.h" -- cgit v1.2.3 From d57b23ad0ca7a46931e4d98eb6b4b73b112f0969 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Mon, 4 Jul 2011 08:24:03 +0000 Subject: ACPICA: Add option to disable method return value validation and repair Runtime option can be used to disable return value repair if this is causing a problem on a particular machine. Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- include/acpi/acpixf.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 06853f76d81b..d42d7ced3943 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -69,6 +69,7 @@ extern u32 acpi_gbl_trace_flags; extern u32 acpi_gbl_enable_aml_debug_object; extern u8 acpi_gbl_copy_dsdt_locally; extern u8 acpi_gbl_truncate_io_addresses; +extern u8 acpi_gbl_disable_auto_repair; extern u32 acpi_current_gpe_count; extern struct acpi_table_fadt acpi_gbl_FADT; -- cgit v1.2.3 From 3eb208f0a36cf7a86953afa7a4eb6776294e6768 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Mon, 4 Jul 2011 08:38:51 +0000 Subject: ACPICA: Update to version 20110623 Version 20110623. Signed-off-by: Bob Moore Signed-off-by: Lin Ming Signed-off-by: Len Brown --- include/acpi/acpixf.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index d42d7ced3943..f554a9313b43 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -47,7 +47,7 @@ /* Current ACPICA subsystem version in YYYYMMDD format */ -#define ACPI_CA_VERSION 0x20110527 +#define ACPI_CA_VERSION 0x20110623 #include "actypes.h" #include "actbl.h" -- cgit v1.2.3 From 50828d7e6767a92726708bc0666e2b8b84575808 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 12 Jul 2011 13:42:02 -0400 Subject: NFS: Cache rpc_ops in struct nfs_pageio_descriptor Signed-off-by: Trond Myklebust --- include/linux/nfs_page.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 9ac2dd158d0b..db3194f63479 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -74,6 +74,7 @@ struct nfs_pageio_descriptor { const struct nfs_pageio_ops *pg_ops; int pg_ioflags; int pg_error; + const struct rpc_call_ops *pg_rpc_callops; struct pnfs_layout_segment *pg_lseg; }; -- cgit v1.2.3 From d9156f9f364897e93bdd98b4ad22138de18f7c24 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 12 Jul 2011 13:42:02 -0400 Subject: NFS: Allow the nfs_pageio_descriptor to signal that a re-coalesce is needed If an attempt to do pNFS fails, and we have to fall back to writing through the MDS, then we may want to re-coalesce the requests that we already have since the block size for the MDS read/writes may be different to that of the DS read/writes. Signed-off-by: Trond Myklebust --- include/linux/nfs_page.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index db3194f63479..7241b2a2a4d6 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -68,7 +68,8 @@ struct nfs_pageio_descriptor { size_t pg_count; size_t pg_bsize; unsigned int pg_base; - char pg_moreio; + unsigned char pg_moreio : 1, + pg_recoalesce : 1; struct inode *pg_inode; const struct nfs_pageio_ops *pg_ops; -- cgit v1.2.3 From 493292ddc78d18ee2ad2d5c24c2b7dd6a24641d2 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 13 Jul 2011 15:58:28 -0400 Subject: NFS: Move the pnfs read code into pnfs.c ...and ensure that we recoalese to take into account differences in block sizes when falling back to read through the MDS. Signed-off-by: Trond Myklebust --- include/linux/nfs_page.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 7241b2a2a4d6..0a48f842f83c 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -108,7 +108,6 @@ extern void nfs_unlock_request(struct nfs_page *req); extern int nfs_set_page_tag_locked(struct nfs_page *req); extern void nfs_clear_page_tag_locked(struct nfs_page *req); -extern int nfs_generic_pg_readpages(struct nfs_pageio_descriptor *desc); extern int nfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc); -- cgit v1.2.3 From dce81290eed64d24493989bb7a08f9e20495e184 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 13 Jul 2011 15:59:19 -0400 Subject: NFS: Move the pnfs write code into pnfs.c ...and ensure that we recoalese to take into account differences in differences in block sizes when falling back to write through the MDS. Signed-off-by: Trond Myklebust --- include/linux/nfs_page.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h index 0a48f842f83c..e2791a27a901 100644 --- a/include/linux/nfs_page.h +++ b/include/linux/nfs_page.h @@ -108,9 +108,6 @@ extern void nfs_unlock_request(struct nfs_page *req); extern int nfs_set_page_tag_locked(struct nfs_page *req); extern void nfs_clear_page_tag_locked(struct nfs_page *req); -extern int nfs_generic_pg_writepages(struct nfs_pageio_descriptor *desc); - - /* * Lock the page of an asynchronous request without getting a new reference */ -- cgit v1.2.3 From 9e00abc3c20904fd6a5d888bb7023925799ec8a5 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Wed, 13 Jul 2011 19:20:49 -0400 Subject: SUNRPC: sunrpc should not explicitly depend on NFS config options Change explicit references to CONFIG_NFS_V4_1 to implicit ones Get rid of the unnecessary defines in backchannel_rqst.c and bc_svc.c: the Makefile takes care of those dependency. Signed-off-by: Trond Myklebust --- include/linux/sunrpc/bc_xprt.h | 6 +++--- include/linux/sunrpc/svc.h | 4 ++-- include/linux/sunrpc/xprt.h | 16 ++++++++-------- 3 files changed, 13 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/include/linux/sunrpc/bc_xprt.h b/include/linux/sunrpc/bc_xprt.h index 082884295f80..f7f3ce340c08 100644 --- a/include/linux/sunrpc/bc_xprt.h +++ b/include/linux/sunrpc/bc_xprt.h @@ -31,7 +31,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #include #include -#ifdef CONFIG_NFS_V4_1 +#ifdef CONFIG_SUNRPC_BACKCHANNEL struct rpc_rqst *xprt_alloc_bc_request(struct rpc_xprt *xprt); void xprt_free_bc_request(struct rpc_rqst *req); int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs); @@ -47,7 +47,7 @@ static inline int svc_is_backchannel(const struct svc_rqst *rqstp) return 1; return 0; } -#else /* CONFIG_NFS_V4_1 */ +#else /* CONFIG_SUNRPC_BACKCHANNEL */ static inline int xprt_setup_backchannel(struct rpc_xprt *xprt, unsigned int min_reqs) { @@ -62,6 +62,6 @@ static inline int svc_is_backchannel(const struct svc_rqst *rqstp) static inline void xprt_free_bc_request(struct rpc_rqst *req) { } -#endif /* CONFIG_NFS_V4_1 */ +#endif /* CONFIG_SUNRPC_BACKCHANNEL */ #endif /* _LINUX_SUNRPC_BC_XPRT_H */ diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index ea29330b78bd..9a3fa7baf4b8 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -92,7 +92,7 @@ struct svc_serv { struct module * sv_module; /* optional module to count when * adding threads */ svc_thread_fn sv_function; /* main function for threads */ -#if defined(CONFIG_NFS_V4_1) +#if defined(CONFIG_SUNRPC_BACKCHANNEL) struct list_head sv_cb_list; /* queue for callback requests * that arrive over the same * connection */ @@ -100,7 +100,7 @@ struct svc_serv { wait_queue_head_t sv_cb_waitq; /* sleep here if there are no * entries in the svc_cb_list */ struct svc_xprt *sv_bc_xprt; /* callback on fore channel */ -#endif /* CONFIG_NFS_V4_1 */ +#endif /* CONFIG_SUNRPC_BACKCHANNEL */ }; /* diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 81cce3b3ee66..217b0206581b 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -100,11 +100,11 @@ struct rpc_rqst { ktime_t rq_xtime; /* transmit time stamp */ int rq_ntrans; -#if defined(CONFIG_NFS_V4_1) +#if defined(CONFIG_SUNRPC_BACKCHANNEL) struct list_head rq_bc_list; /* Callback service list */ unsigned long rq_bc_pa_state; /* Backchannel prealloc state */ struct list_head rq_bc_pa_list; /* Backchannel prealloc list */ -#endif /* CONFIG_NFS_V4_1 */ +#endif /* CONFIG_SUNRPC_BACKCHANEL */ }; #define rq_svec rq_snd_buf.head #define rq_slen rq_snd_buf.len @@ -200,7 +200,7 @@ struct rpc_xprt { u32 xid; /* Next XID value to use */ struct rpc_task * snd_task; /* Task blocked in send */ struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */ -#if defined(CONFIG_NFS_V4_1) +#if defined(CONFIG_SUNRPC_BACKCHANNEL) struct svc_serv *bc_serv; /* The RPC service which will */ /* process the callback */ unsigned int bc_alloc_count; /* Total number of preallocs */ @@ -208,7 +208,7 @@ struct rpc_xprt { * items */ struct list_head bc_pa_list; /* List of preallocated * backchannel rpc_rqst's */ -#endif /* CONFIG_NFS_V4_1 */ +#endif /* CONFIG_SUNRPC_BACKCHANNEL */ struct list_head recv; struct { @@ -228,15 +228,15 @@ struct rpc_xprt { const char *address_strings[RPC_DISPLAY_MAX]; }; -#if defined(CONFIG_NFS_V4_1) +#if defined(CONFIG_SUNRPC_BACKCHANNEL) /* * Backchannel flags */ #define RPC_BC_PA_IN_USE 0x0001 /* Preallocated backchannel */ /* buffer in use */ -#endif /* CONFIG_NFS_V4_1 */ +#endif /* CONFIG_SUNRPC_BACKCHANNEL */ -#if defined(CONFIG_NFS_V4_1) +#if defined(CONFIG_SUNRPC_BACKCHANNEL) static inline int bc_prealloc(struct rpc_rqst *req) { return test_bit(RPC_BC_PA_IN_USE, &req->rq_bc_pa_state); @@ -246,7 +246,7 @@ static inline int bc_prealloc(struct rpc_rqst *req) { return 0; } -#endif /* CONFIG_NFS_V4_1 */ +#endif /* CONFIG_SUNRPC_BACKCHANNEL */ struct xprt_create { int ident; /* XPRT_TRANSPORT identifier */ -- cgit v1.2.3 From 9c8b04be443b33939f374a811c82abeebe0a61d1 Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Sat, 25 Jun 2011 21:07:52 +0400 Subject: ACPI: constify ops structs Structs battery_file, acpi_dock_ops, file_operations, thermal_cooling_device_ops, thermal_zone_device_ops, kernel_param_ops are not changed in runtime. It is safe to make them const. register_hotplug_dock_device() was altered to take const "ops" argument to respect acpi_dock_ops' const notion. Signed-off-by: Vasiliy Kulikov Acked-by: Jeff Garzik Signed-off-by: Len Brown --- include/acpi/acpi_drivers.h | 2 +- include/acpi/processor.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h index 3090471b2a5e..e49c36d38d7e 100644 --- a/include/acpi/acpi_drivers.h +++ b/include/acpi/acpi_drivers.h @@ -128,7 +128,7 @@ extern int is_dock_device(acpi_handle handle); extern int register_dock_notifier(struct notifier_block *nb); extern void unregister_dock_notifier(struct notifier_block *nb); extern int register_hotplug_dock_device(acpi_handle handle, - struct acpi_dock_ops *ops, + const struct acpi_dock_ops *ops, void *context); extern void unregister_hotplug_dock_device(acpi_handle handle); #else diff --git a/include/acpi/processor.h b/include/acpi/processor.h index ba4928cae473..67055f180330 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -337,7 +337,7 @@ extern struct cpuidle_driver acpi_idle_driver; /* in processor_thermal.c */ int acpi_processor_get_limit_info(struct acpi_processor *pr); -extern struct thermal_cooling_device_ops processor_cooling_ops; +extern const struct thermal_cooling_device_ops processor_cooling_ops; #ifdef CONFIG_CPU_FREQ void acpi_thermal_cpufreq_init(void); void acpi_thermal_cpufreq_exit(void); -- cgit v1.2.3 From 43cedbf0e8dfb9c5610eb7985d5f21263e313802 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 17 Jul 2011 16:01:03 -0400 Subject: SUNRPC: Ensure that we grab the XPRT_LOCK before calling xprt_alloc_slot This throttles the allocation of new slots when the socket is busy reconnecting and/or is out of buffer space. Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xprt.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 217b0206581b..a876882fb923 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -111,7 +111,7 @@ struct rpc_rqst { struct rpc_xprt_ops { void (*set_buffer_size)(struct rpc_xprt *xprt, size_t sndsize, size_t rcvsize); - int (*reserve_xprt)(struct rpc_task *task); + int (*reserve_xprt)(struct rpc_xprt *xprt, struct rpc_task *task); void (*release_xprt)(struct rpc_xprt *xprt, struct rpc_task *task); void (*rpcbind)(struct rpc_task *task); void (*set_port)(struct rpc_xprt *xprt, unsigned short port); @@ -271,8 +271,8 @@ struct xprt_class { struct rpc_xprt *xprt_create_transport(struct xprt_create *args); void xprt_connect(struct rpc_task *task); void xprt_reserve(struct rpc_task *task); -int xprt_reserve_xprt(struct rpc_task *task); -int xprt_reserve_xprt_cong(struct rpc_task *task); +int xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task); +int xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task); int xprt_prepare_transmit(struct rpc_task *task); void xprt_transmit(struct rpc_task *task); void xprt_end_transmit(struct rpc_task *task); -- cgit v1.2.3 From 21de0a955f3af29fa1100d96f66e6adade89e77a Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 17 Jul 2011 16:57:32 -0400 Subject: SUNRPC: Clean up the slot table allocation Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xprt.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index a876882fb923..05047250f218 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -168,7 +168,6 @@ struct rpc_xprt { struct rpc_wait_queue pending; /* requests in flight */ struct rpc_wait_queue backlog; /* waiting for slot */ struct list_head free; /* free slots */ - struct rpc_rqst * slot; /* slot table storage */ unsigned int max_reqs; /* total slots */ unsigned long state; /* transport state */ unsigned char shutdown : 1, /* being shut down */ @@ -321,7 +320,6 @@ void xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie); #define XPRT_CLOSING (6) #define XPRT_CONNECTION_ABORT (7) #define XPRT_CONNECTION_CLOSE (8) -#define XPRT_INITIALIZED (9) static inline void xprt_set_connected(struct rpc_xprt *xprt) { -- cgit v1.2.3 From d9ba131d8f58c0d2ff5029e7002ab43f913b36f9 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 17 Jul 2011 18:11:30 -0400 Subject: SUNRPC: Support dynamic slot allocation for TCP connections Allow the number of available slots to grow with the TCP window size. Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xprt.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 05047250f218..d02762d1de27 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -22,6 +22,7 @@ #define RPC_MIN_SLOT_TABLE (2U) #define RPC_DEF_SLOT_TABLE (16U) #define RPC_MAX_SLOT_TABLE (128U) +#define RPC_MAX_SLOT_TABLE_LIMIT (65536U) /* * This describes a timeout strategy @@ -168,7 +169,9 @@ struct rpc_xprt { struct rpc_wait_queue pending; /* requests in flight */ struct rpc_wait_queue backlog; /* waiting for slot */ struct list_head free; /* free slots */ - unsigned int max_reqs; /* total slots */ + unsigned int max_reqs; /* max number of slots */ + unsigned int min_reqs; /* min number of slots */ + atomic_t num_reqs; /* total slots */ unsigned long state; /* transport state */ unsigned char shutdown : 1, /* being shut down */ resvport : 1; /* use a reserved port */ @@ -281,7 +284,9 @@ void xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task); void xprt_release(struct rpc_task *task); struct rpc_xprt * xprt_get(struct rpc_xprt *xprt); void xprt_put(struct rpc_xprt *xprt); -struct rpc_xprt * xprt_alloc(struct net *net, int size, int max_req); +struct rpc_xprt * xprt_alloc(struct net *net, size_t size, + unsigned int num_prealloc, + unsigned int max_req); void xprt_free(struct rpc_xprt *); static inline __be32 *xprt_skip_transport_header(struct rpc_xprt *xprt, __be32 *p) -- cgit v1.2.3 From 3b27bad7f7ceacca6d6c0ef647ffb38aa55a8336 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 17 Jul 2011 18:11:34 -0400 Subject: SUNRPC: Allow caller of rpc_sleep_on() to select priority levels Currently, the caller has to change the value of task->tk_priority if it wants to select on which priority level the task will sleep. This patch allows the caller to select a priority level at sleep time rather than always using task->tk_priority. Signed-off-by: Trond Myklebust --- include/linux/sunrpc/sched.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h index fe2d8e6b923b..e7756896f3ca 100644 --- a/include/linux/sunrpc/sched.h +++ b/include/linux/sunrpc/sched.h @@ -227,6 +227,10 @@ void rpc_init_wait_queue(struct rpc_wait_queue *, const char *); void rpc_destroy_wait_queue(struct rpc_wait_queue *); void rpc_sleep_on(struct rpc_wait_queue *, struct rpc_task *, rpc_action action); +void rpc_sleep_on_priority(struct rpc_wait_queue *, + struct rpc_task *, + rpc_action action, + int priority); void rpc_wake_up_queued_task(struct rpc_wait_queue *, struct rpc_task *); void rpc_wake_up(struct rpc_wait_queue *); -- cgit v1.2.3 From 34006cee28f7344f9557a4be3816c7891b1bbab1 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 17 Jul 2011 18:11:34 -0400 Subject: SUNRPC: Replace xprt->resend and xprt->sending with a priority queue Signed-off-by: Trond Myklebust --- include/linux/sunrpc/xprt.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index d02762d1de27..15518a152ac3 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -165,7 +165,6 @@ struct rpc_xprt { struct rpc_wait_queue binding; /* requests waiting on rpcbind */ struct rpc_wait_queue sending; /* requests waiting to send */ - struct rpc_wait_queue resend; /* requests waiting to resend */ struct rpc_wait_queue pending; /* requests in flight */ struct rpc_wait_queue backlog; /* waiting for slot */ struct list_head free; /* free slots */ -- cgit v1.2.3 From e55b9422e186d208f162f056ee28b6eb6b9b81a9 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 15 Jul 2011 19:53:52 +0000 Subject: drm/radeon/kms: add info query for backend map The 3D driver need to get the pipe to backend map to certain things. Add a query to get the info. Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- include/drm/radeon_drm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h index 787f7b6fd622..b65be6054a18 100644 --- a/include/drm/radeon_drm.h +++ b/include/drm/radeon_drm.h @@ -911,6 +911,7 @@ struct drm_radeon_cs { #define RADEON_INFO_NUM_BACKENDS 0x0a /* DB/backends for r600+ - need for OQ */ #define RADEON_INFO_NUM_TILE_PIPES 0x0b /* tile pipes for r600+ */ #define RADEON_INFO_FUSION_GART_WORKING 0x0c /* fusion writes to GTT were broken before this */ +#define RADEON_INFO_BACKEND_MAP 0x0d /* pipe to backend map, needed by mesa */ struct drm_radeon_info { uint32_t request; -- cgit v1.2.3 From 3adf004d82c03ca9d57cbe960657757a71e4c2e7 Mon Sep 17 00:00:00 2001 From: Pekka Enberg Date: Mon, 18 Jul 2011 15:16:55 +0300 Subject: Revert "SLUB: Fix build breakage in linux/mm_types.h" This reverts commit ea6bd8ee1a2ccdffc38b2b1fcfe941addfafaade. --- include/linux/mm_types.h | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 6dc6413f5deb..3d76a433d52f 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -49,27 +49,32 @@ struct page { * see PAGE_MAPPING_ANON below. */ /* Second double word */ - struct { - union { + union { + struct { pgoff_t index; /* Our offset within mapping. */ - void *freelist; /* slub first free object */ - }; - - union { atomic_t _mapcount; /* Count of ptes mapped in mms, * to show when page is mapped * & limit reverse map searches. */ + atomic_t _count; /* Usage count, see below. */ + }; - /* Used for cmpxchg_double in slub */ - unsigned long counters; - struct { + struct { /* SLUB cmpxchg_double area */ + void *freelist; + union { + unsigned long counters; + struct { unsigned inuse:16; unsigned objects:15; unsigned frozen:1; + /* + * Kernel may make use of this field even when slub + * uses the rest of the double word! + */ + atomic_t _count; + }; }; }; - atomic_t _count; /* Usage count, see below. */ }; /* Third double word block */ -- cgit v1.2.3 From 013e896373fc53f3d3c039364a25ccbd1fc0729a Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Thu, 14 Jul 2011 12:48:14 -0500 Subject: Avoid duplicate _count variables in page_struct Restructure the union / struct cascade in struct page so that we only have one definition of _count. Tested-by: Hugh Dickins Signed-off-by: Christoph Lameter Signed-off-by: Pekka Enberg --- include/linux/mm_types.h | 37 +++++++++++++++++++------------------ 1 file changed, 19 insertions(+), 18 deletions(-) (limited to 'include') diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 3d76a433d52f..774b8952deb4 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -49,30 +49,31 @@ struct page { * see PAGE_MAPPING_ANON below. */ /* Second double word */ - union { - struct { + struct { + union { pgoff_t index; /* Our offset within mapping. */ - atomic_t _mapcount; /* Count of ptes mapped in mms, + void *freelist; /* slub first free object */ + }; + + union { + /* Used for cmpxchg_double in slub */ + unsigned long counters; + + struct { + + union { + atomic_t _mapcount; /* Count of ptes mapped in mms, * to show when page is mapped * & limit reverse map searches. */ - atomic_t _count; /* Usage count, see below. */ - }; - struct { /* SLUB cmpxchg_double area */ - void *freelist; - union { - unsigned long counters; - struct { - unsigned inuse:16; - unsigned objects:15; - unsigned frozen:1; - /* - * Kernel may make use of this field even when slub - * uses the rest of the double word! - */ - atomic_t _count; + struct { + unsigned inuse:16; + unsigned objects:15; + unsigned frozen:1; + }; }; + atomic_t _count; /* Usage count, see below. */ }; }; }; -- cgit v1.2.3 From d12dc256547cec4fe62dad6e94252dced4ee2d58 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 20 Jul 2011 14:31:47 +0200 Subject: quota: Remove unused declaration There is no point in declaring quotactl() syscall prototype in kernel header and 'make headers_check' complains about it. So just remove those lines. Signed-off-by: Jan Kara --- include/linux/quota.h | 8 -------- 1 file changed, 8 deletions(-) (limited to 'include') diff --git a/include/linux/quota.h b/include/linux/quota.h index 9a85412e0db6..313b7defc088 100644 --- a/include/linux/quota.h +++ b/include/linux/quota.h @@ -415,13 +415,5 @@ struct quota_module_name { {QFMT_VFS_V0, "quota_v2"},\ {0, NULL}} -#else - -# /* nodep */ include - -__BEGIN_DECLS -long quotactl __P ((unsigned int, const char *, int, caddr_t)); -__END_DECLS - #endif /* __KERNEL__ */ #endif /* _QUOTA_ */ -- cgit v1.2.3 From c219c80929ca942c38334aad38b7582aed4e038e Mon Sep 17 00:00:00 2001 From: Liam Girdwood Date: Wed, 20 Jul 2011 19:42:20 +0100 Subject: ASoC: dapm - add DAPM macro for external enum widgets Add a convenience macro for external enumerated widgets. Signed-off-by: Liam Girdwood Signed-off-by: Mark Brown --- include/sound/soc-dapm.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index e09505c5a490..e0583b7769cb 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -266,6 +266,12 @@ .get = snd_soc_dapm_get_enum_virt, \ .put = snd_soc_dapm_put_enum_virt, \ .private_value = (unsigned long)&xenum } +#define SOC_DAPM_ENUM_EXT(xname, xenum, xget, xput) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ + .info = snd_soc_info_enum_double, \ + .get = xget, \ + .put = xput, \ + .private_value = (unsigned long)&xenum } #define SOC_DAPM_VALUE_ENUM(xname, xenum) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_soc_info_enum_double, \ -- cgit v1.2.3 From 0918472ceeffad234df5589e45b646a94476f835 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Tue, 17 May 2011 16:08:37 +0800 Subject: PCI: PCIe AER: add aer_recover_queue In addition to native PCIe AER, now APEI (ACPI Platform Error Interface) GHES (Generic Hardware Error Source) can be used to report PCIe AER errors too. To add support to APEI GHES PCIe AER recovery, aer_recover_queue is added to export the recovery function in native PCIe AER driver. Recoverable PCIe AER errors are reported via NMI in APEI GHES. Then APEI GHES uses irq_work to delay the error processing into an IRQ handler. But PCIe AER recovery can be very time-consuming, so aer_recover_queue, which can be used in IRQ handler, delays the real recovery action into the process context, that is, work queue. Signed-off-by: Huang Ying Signed-off-by: Jesse Barnes --- include/linux/aer.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/aer.h b/include/linux/aer.h index 8414de22a779..544abdb2238c 100644 --- a/include/linux/aer.h +++ b/include/linux/aer.h @@ -51,5 +51,8 @@ static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev) extern void cper_print_aer(const char *prefix, int cper_severity, struct aer_capability_regs *aer); +extern int cper_severity_to_aer(int cper_severity); +extern void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, + int severity); #endif //_AER_H_ -- cgit v1.2.3 From 688398bb7b9c6ac115da7749ea808d3ef69e029f Mon Sep 17 00:00:00 2001 From: Myron Stowe Date: Thu, 7 Jul 2011 15:00:36 -0600 Subject: PCI: Assign values to 'pci_obff_signal_type' enumeration constants 'pci_obff_signal_type' is passed between drivers and the kernel API. This patch explicitly assigns values to the enumeration type's constants which aids in detecting any future changes or additions that would break the kernel's ABI. No functional change. Signed-off-by: Myron Stowe Signed-off-by: Jesse Barnes --- include/linux/pci.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index c446b5ca2d38..6e96015e9362 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -843,8 +843,8 @@ void pci_enable_ido(struct pci_dev *dev, unsigned long type); void pci_disable_ido(struct pci_dev *dev, unsigned long type); enum pci_obff_signal_type { - PCI_EXP_OBFF_SIGNAL_L0, - PCI_EXP_OBFF_SIGNAL_ALWAYS, + PCI_EXP_OBFF_SIGNAL_L0 = 0, + PCI_EXP_OBFF_SIGNAL_ALWAYS = 1, }; int pci_enable_obff(struct pci_dev *dev, enum pci_obff_signal_type); void pci_disable_obff(struct pci_dev *dev); -- cgit v1.2.3 From d5341942d784134f2997b3ff82cd63cf71d1f932 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 10 Jun 2011 15:30:21 +0100 Subject: PCI: Make the struct pci_dev * argument of pci_fixup_irqs const. Aside of the usual motivation for constification, this function has a history of being abused a hook for interrupt and other fixups so I turned this function const ages ago in the MIPS code but it should be done treewide. Due to function pointer passing in varous places a few other functions had to be constified as well. Signed-off-by: Ralf Baechle To: Anton Vorontsov To: Chris Metcalf To: Colin Cross Acked-by: "David S. Miller" To: Eric Miao To: Erik Gilling Acked-by: Guan Xuetao To: "H. Peter Anvin" To: Imre Kaloz To: Ingo Molnar To: Ivan Kokshaysky To: Jesse Barnes To: Krzysztof Halasa To: Lennert Buytenhek To: Matt Turner To: Nicolas Pitre To: Olof Johansson Acked-by: Paul Mundt To: Richard Henderson To: Russell King To: Thomas Gleixner Cc: Andrew Morton Cc: linux-alpha@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-pci@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: x86@kernel.org Signed-off-by: Jesse Barnes --- include/linux/pci.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index 6e96015e9362..7053248a2cd1 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -879,7 +879,7 @@ void pdev_enable_device(struct pci_dev *); void pdev_sort_resources(struct pci_dev *, struct resource_list *); int pci_enable_resources(struct pci_dev *, int mask); void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *), - int (*)(struct pci_dev *, u8, u8)); + int (*)(const struct pci_dev *, u8, u8)); #define HAVE_PCI_REQ_REGIONS 2 int __must_check pci_request_regions(struct pci_dev *, const char *); int __must_check pci_request_regions_exclusive(struct pci_dev *, const char *); -- cgit v1.2.3 From 842d452985300f4ec14c68cb86046e8a1a3b7251 Mon Sep 17 00:00:00 2001 From: Ole Henrik Jahren Date: Fri, 22 Jul 2011 15:56:01 +0200 Subject: drm/i915: Fix typo in DRM_I915_OVERLAY_PUT_IMAGE ioctl define Because of a typo, calling ioctl with DRM_IOCTL_I915_OVERLAY_PUT_IMAGE is broken if the macro is used directly. When using libdrm the bug is not hit, since libdrm handles the ioctl encoding internally. The typo also leads to the .cmd and .cmd_drv fields of the drm_ioctl structure for DRM_I915_OVERLAY_PUT_IMAGE having inconsistent content. Signed-off-by: Ole Henrik Jahren Acked-by: Daniel Vetter Cc: stable@kernel.org Signed-off-by: Keith Packard --- include/drm/i915_drm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h index c4d6dbfa3ff4..28c0d114cb52 100644 --- a/include/drm/i915_drm.h +++ b/include/drm/i915_drm.h @@ -237,7 +237,7 @@ typedef struct _drm_i915_sarea { #define DRM_IOCTL_I915_GEM_GET_APERTURE DRM_IOR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_APERTURE, struct drm_i915_gem_get_aperture) #define DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GET_PIPE_FROM_CRTC_ID, struct drm_i915_get_pipe_from_crtc_id) #define DRM_IOCTL_I915_GEM_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MADVISE, struct drm_i915_gem_madvise) -#define DRM_IOCTL_I915_OVERLAY_PUT_IMAGE DRM_IOW(DRM_COMMAND_BASE + DRM_IOCTL_I915_OVERLAY_ATTRS, struct drm_intel_overlay_put_image) +#define DRM_IOCTL_I915_OVERLAY_PUT_IMAGE DRM_IOW(DRM_COMMAND_BASE + DRM_I915_OVERLAY_PUT_IMAGE, struct drm_intel_overlay_put_image) #define DRM_IOCTL_I915_OVERLAY_ATTRS DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_OVERLAY_ATTRS, struct drm_intel_overlay_attrs) /* Allow drivers to submit batchbuffers directly to hardware, relying -- cgit v1.2.3 From 3baef940f289f08e4aada1fd481ab9ee3f070144 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Fri, 22 Jul 2011 14:04:56 -0700 Subject: ioat: Adding PCI IDs for IOAT devices on SandyBridge platforms Adding to pci_id.h and the device table for ioat. Signed-off-by: Dave Jiang Signed-off-by: Dan Williams --- include/linux/pci_ids.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index f8910e155566..a8571b36ae97 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2699,6 +2699,16 @@ #define PCI_DEVICE_ID_INTEL_ICH10_5 0x3a60 #define PCI_DEVICE_ID_INTEL_5_3400_SERIES_LPC_MIN 0x3b00 #define PCI_DEVICE_ID_INTEL_5_3400_SERIES_LPC_MAX 0x3b1f +#define PCI_DEVICE_ID_INTEL_IOAT_SNB0 0x3c20 +#define PCI_DEVICE_ID_INTEL_IOAT_SNB1 0x3c21 +#define PCI_DEVICE_ID_INTEL_IOAT_SNB2 0x3c22 +#define PCI_DEVICE_ID_INTEL_IOAT_SNB3 0x3c23 +#define PCI_DEVICE_ID_INTEL_IOAT_SNB4 0x3c24 +#define PCI_DEVICE_ID_INTEL_IOAT_SNB5 0x3c25 +#define PCI_DEVICE_ID_INTEL_IOAT_SNB6 0x3c26 +#define PCI_DEVICE_ID_INTEL_IOAT_SNB7 0x3c27 +#define PCI_DEVICE_ID_INTEL_IOAT_SNB8 0x3c2e +#define PCI_DEVICE_ID_INTEL_IOAT_SNB9 0x3c2f #define PCI_DEVICE_ID_INTEL_IOAT_SNB 0x402f #define PCI_DEVICE_ID_INTEL_5100_16 0x65f0 #define PCI_DEVICE_ID_INTEL_5100_21 0x65f5 -- cgit v1.2.3 From 638c1fd3033c76778e6d9975ad8a4a9cdd5b96d9 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Thu, 21 Jul 2011 16:57:52 -0400 Subject: pstore: Extend API for more flexibility in new backends Some pstore implementations may not have a static context, so extend the API to pass the pstore_info struct to all calls and allow for a context pointer. Signed-off-by: Matthew Garrett Signed-off-by: Tony Luck --- include/linux/pstore.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/pstore.h b/include/linux/pstore.h index 2455ef2683f0..b2f1d97f6909 100644 --- a/include/linux/pstore.h +++ b/include/linux/pstore.h @@ -38,9 +38,11 @@ struct pstore_info { int (*open)(struct pstore_info *psi); int (*close)(struct pstore_info *psi); ssize_t (*read)(u64 *id, enum pstore_type_id *type, - struct timespec *time); - u64 (*write)(enum pstore_type_id type, size_t size); - int (*erase)(u64 id); + struct timespec *time, struct pstore_info *psi); + u64 (*write)(enum pstore_type_id type, size_t size, + struct pstore_info *psi); + int (*erase)(u64 id, struct pstore_info *psi); + void *data; }; #ifdef CONFIG_PSTORE -- cgit v1.2.3 From 56280682ceeef74b692b3e21d1872049eea7c887 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Thu, 21 Jul 2011 16:57:53 -0400 Subject: pstore: Add extra context for writes and erases EFI only provides small amounts of individual storage, and conventionally puts metadata in the storage variable name. Rather than add a metadata header to the (already limited) variable storage, it's easier for us to modify pstore to pass all the information we need to construct a unique variable name to the appropriate functions. Signed-off-by: Matthew Garrett Signed-off-by: Tony Luck --- include/linux/pstore.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/pstore.h b/include/linux/pstore.h index b2f1d97f6909..12be8f193d09 100644 --- a/include/linux/pstore.h +++ b/include/linux/pstore.h @@ -39,9 +39,10 @@ struct pstore_info { int (*close)(struct pstore_info *psi); ssize_t (*read)(u64 *id, enum pstore_type_id *type, struct timespec *time, struct pstore_info *psi); - u64 (*write)(enum pstore_type_id type, size_t size, + u64 (*write)(enum pstore_type_id type, int part, + size_t size, struct pstore_info *psi); + int (*erase)(enum pstore_type_id type, u64 id, struct pstore_info *psi); - int (*erase)(u64 id, struct pstore_info *psi); void *data; }; -- cgit v1.2.3 From b94fdd077eef5e6cab56836bf62695b497946716 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Thu, 21 Jul 2011 16:57:54 -0400 Subject: pstore: Make "part" unsigned We'll never have a negative part, so just make this an unsigned int. Signed-off-by: Matthew Garrett Signed-off-by: Tony Luck --- include/linux/pstore.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/pstore.h b/include/linux/pstore.h index 12be8f193d09..cc03bbf5c4b8 100644 --- a/include/linux/pstore.h +++ b/include/linux/pstore.h @@ -39,7 +39,7 @@ struct pstore_info { int (*close)(struct pstore_info *psi); ssize_t (*read)(u64 *id, enum pstore_type_id *type, struct timespec *time, struct pstore_info *psi); - u64 (*write)(enum pstore_type_id type, int part, + u64 (*write)(enum pstore_type_id type, unsigned int part, size_t size, struct pstore_info *psi); int (*erase)(enum pstore_type_id type, u64 id, struct pstore_info *psi); -- cgit v1.2.3 From 5ee9c198a4208d7760275d48e4c4f6c89dcd2ef0 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Thu, 21 Jul 2011 16:57:56 -0400 Subject: efi: Add support for using efivars as a pstore backend EFI provides an area of nonvolatile storage managed by the firmware. We can use this as a pstore backend to maintain copies of oopses, aiding diagnosis. Signed-off-by: Matthew Garrett Signed-off-by: Tony Luck --- include/linux/efi.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/efi.h b/include/linux/efi.h index e376270cd26e..c1f5107338c6 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -19,6 +19,7 @@ #include #include #include +#include #include #include @@ -211,6 +212,9 @@ typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_siz #define UV_SYSTEM_TABLE_GUID \ EFI_GUID( 0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93 ) +#define LINUX_EFI_CRASH_GUID \ + EFI_GUID( 0xcfc8fc79, 0xbe2e, 0x4ddc, 0x97, 0xf0, 0x9f, 0x98, 0xbf, 0xe2, 0x98, 0xa0 ) + typedef struct { efi_guid_t guid; unsigned long table; @@ -426,6 +430,8 @@ struct efivars { struct kset *kset; struct bin_attribute *new_var, *del_var; const struct efivar_operations *ops; + struct efivar_entry *walk_entry; + struct pstore_info efi_pstore_info; }; int register_efivars(struct efivars *efivars, -- cgit v1.2.3 From acb03d440b8a723181e1d45e3517e43cb0792f8a Mon Sep 17 00:00:00 2001 From: Eliot Blennerhassett Date: Sat, 23 Jul 2011 12:36:25 +1200 Subject: ALSA: Make snd_pcm_debug_name usable outside pcm_lib Formatting a PCM name is useful for module debug too. Add snd_prefix when making function public. [minor coding-style fixes by tiwai] Signed-off-by: Eliot Blennerhassett Signed-off-by: Takashi Iwai --- include/sound/pcm.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/sound/pcm.h b/include/sound/pcm.h index e1bad1130616..ccf3a6e14f9f 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -507,6 +507,18 @@ void snd_pcm_detach_substream(struct snd_pcm_substream *substream); void snd_pcm_vma_notify_data(void *client, void *data); int snd_pcm_mmap_data(struct snd_pcm_substream *substream, struct file *file, struct vm_area_struct *area); + +#ifdef CONFIG_SND_DEBUG +void snd_pcm_debug_name(struct snd_pcm_substream *substream, + char *name, size_t len); +#else +static inline void +snd_pcm_debug_name(struct snd_pcm_substream *substream, char *buf, size_t size) +{ + *buf = 0; +} +#endif + /* * PCM library */ -- cgit v1.2.3 From aac927c93bb353375c74779491e217427cc4d3a9 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Mon, 23 May 2011 15:46:54 +0300 Subject: OMAP: DSS2: rewrite use of context_loss_count The function to get device's context loss count has changed from omap_pm_get_last_off_on_transaction_id() to omap_pm_get_dev_context_loss_count() Change name of the function pointer in omapdss.h accordingly, and use the term "context loss count" instead of "context id" in the code. Restructure the context loss count functions to handle errors properly, and ensure that context is always considered lost if an error happens. Signed-off-by: Tomi Valkeinen --- include/video/omapdss.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/video/omapdss.h b/include/video/omapdss.h index c804bda059d5..3a221de244e4 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -238,7 +238,7 @@ int dsi_vc_send_bta_sync(struct omap_dss_device *dssdev, int channel); /* Board specific data */ struct omap_dss_board_info { - int (*get_last_off_on_transaction_id)(struct device *dev); + int (*get_context_loss_count)(struct device *dev); int num_devices; struct omap_dss_device **devices; struct omap_dss_device *default_device; -- cgit v1.2.3 From 123521830c0ea35055b900d2ff0b73bb129e08cb Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Fri, 27 May 2011 11:16:33 +0000 Subject: iscsi: Resolve iscsi_proto.h naming conflicts with drivers/target/iscsi This patch renames the following iscsi_proto.h structures to avoid namespace issues with drivers/target/iscsi/iscsi_target_core.h: *) struct iscsi_cmd -> struct iscsi_scsi_req *) struct iscsi_cmd_rsp -> struct iscsi_scsi_rsp *) struct iscsi_login -> struct iscsi_login_req This patch includes useful ISCSI_FLAG_LOGIN_[CURRENT,NEXT]_STAGE*, and ISCSI_FLAG_SNACK_TYPE_* definitions used by iscsi_target_mod, and fixes the incorrect definition of struct iscsi_snack to following RFC-3720 Section 10.16. SNACK Request. Also, this patch updates libiscsi, iSER, be2iscsi, and bn2xi to use the updated structure definitions in a handful of locations. Signed-off-by: Mike Christie Signed-off-by: Nicholas A. Bellinger --- include/scsi/iscsi_proto.h | 30 ++++++++++++++++++++++-------- 1 file changed, 22 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h index dd0a52cea95a..a9c9058ffc60 100644 --- a/include/scsi/iscsi_proto.h +++ b/include/scsi/iscsi_proto.h @@ -116,7 +116,7 @@ struct iscsi_ahs_hdr { #define ISCSI_CDB_SIZE 16 /* iSCSI PDU Header */ -struct iscsi_cmd { +struct iscsi_scsi_req { uint8_t opcode; uint8_t flags; __be16 rsvd2; @@ -161,7 +161,7 @@ struct iscsi_ecdb_ahdr { }; /* SCSI Response Header */ -struct iscsi_cmd_rsp { +struct iscsi_scsi_rsp { uint8_t opcode; uint8_t flags; uint8_t response; @@ -406,7 +406,7 @@ struct iscsi_text_rsp { }; /* Login Header */ -struct iscsi_login { +struct iscsi_login_req { uint8_t opcode; uint8_t flags; uint8_t max_version; /* Max. version supported */ @@ -427,7 +427,13 @@ struct iscsi_login { #define ISCSI_FLAG_LOGIN_TRANSIT 0x80 #define ISCSI_FLAG_LOGIN_CONTINUE 0x40 #define ISCSI_FLAG_LOGIN_CURRENT_STAGE_MASK 0x0C /* 2 bits */ +#define ISCSI_FLAG_LOGIN_CURRENT_STAGE1 0x04 +#define ISCSI_FLAG_LOGIN_CURRENT_STAGE2 0x08 +#define ISCSI_FLAG_LOGIN_CURRENT_STAGE3 0x0C #define ISCSI_FLAG_LOGIN_NEXT_STAGE_MASK 0x03 /* 2 bits */ +#define ISCSI_FLAG_LOGIN_NEXT_STAGE1 0x01 +#define ISCSI_FLAG_LOGIN_NEXT_STAGE2 0x02 +#define ISCSI_FLAG_LOGIN_NEXT_STAGE3 0x03 #define ISCSI_LOGIN_CURRENT_STAGE(flags) \ ((flags & ISCSI_FLAG_LOGIN_CURRENT_STAGE_MASK) >> 2) @@ -550,17 +556,25 @@ struct iscsi_logout_rsp { struct iscsi_snack { uint8_t opcode; uint8_t flags; - uint8_t rsvd2[14]; + uint8_t rsvd2[2]; + uint8_t hlength; + uint8_t dlength[3]; + uint8_t lun[8]; itt_t itt; + __be32 ttt; + uint8_t rsvd3[4]; + __be32 exp_statsn; + uint8_t rsvd4[8]; __be32 begrun; __be32 runlength; - __be32 exp_statsn; - __be32 rsvd3; - __be32 exp_datasn; - uint8_t rsvd6[8]; }; /* SNACK PDU flags */ +#define ISCSI_FLAG_SNACK_TYPE_DATA 0 +#define ISCSI_FLAG_SNACK_TYPE_R2T 0 +#define ISCSI_FLAG_SNACK_TYPE_STATUS 1 +#define ISCSI_FLAG_SNACK_TYPE_DATA_ACK 2 +#define ISCSI_FLAG_SNACK_TYPE_RDATA 3 #define ISCSI_FLAG_SNACK_TYPE_MASK 0x0F /* 4 bits */ /* Reject Message Header */ -- cgit v1.2.3 From aea4eb9590c6fa36e1b68b9cf5c3e4ddea402812 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Fri, 27 May 2011 10:52:38 +0300 Subject: OMAP: DSS2: Remove unused opt_clock_available opt_clock_available() is no longer needed, so remove it. Signed-off-by: Tomi Valkeinen --- include/video/omapdss.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 3a221de244e4..3b55ef22f8db 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -258,8 +258,6 @@ static inline int omap_display_init(struct omap_dss_board_info *board_data) struct omap_display_platform_data { struct omap_dss_board_info *board_data; /* TODO: Additional members to be added when PM is considered */ - - bool (*opt_clock_available)(const char *clk_role); }; struct omap_video_timings { -- cgit v1.2.3 From 55bdabdf41b6ee99e22e9d78a895b001fb1d852e Mon Sep 17 00:00:00 2001 From: Andy Grover Date: Thu, 16 Jun 2011 15:57:09 -0700 Subject: iscsi: Use struct scsi_lun in iscsi structs instead of u8[8] struct scsi_lun is also just a struct with an array of 8 octets (64 bits) but using it instead in iscsi structs lets us call scsilun_to_int without a cast, and also lets us copy it using assignment, instead of memcpy(). Signed-off-by: Andy Grover Signed-off-by: James Bottomley --- include/scsi/iscsi_proto.h | 18 +++++++++--------- include/scsi/libiscsi.h | 2 +- 2 files changed, 10 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h index a9c9058ffc60..f5f83534fc13 100644 --- a/include/scsi/iscsi_proto.h +++ b/include/scsi/iscsi_proto.h @@ -60,7 +60,7 @@ struct iscsi_hdr { uint8_t rsvd2[2]; uint8_t hlength; /* AHSs total length */ uint8_t dlength[3]; /* Data length */ - uint8_t lun[8]; + struct scsi_lun lun; itt_t itt; /* Initiator Task Tag, opaque for target */ __be32 ttt; /* Target Task Tag */ __be32 statsn; @@ -122,7 +122,7 @@ struct iscsi_scsi_req { __be16 rsvd2; uint8_t hlength; uint8_t dlength[3]; - uint8_t lun[8]; + struct scsi_lun lun; itt_t itt; /* Initiator Task Tag */ __be32 data_length; __be32 cmdsn; @@ -198,7 +198,7 @@ struct iscsi_async { uint8_t rsvd2[2]; uint8_t rsvd3; uint8_t dlength[3]; - uint8_t lun[8]; + struct scsi_lun lun; uint8_t rsvd4[8]; __be32 statsn; __be32 exp_cmdsn; @@ -226,7 +226,7 @@ struct iscsi_nopout { __be16 rsvd2; uint8_t rsvd3; uint8_t dlength[3]; - uint8_t lun[8]; + struct scsi_lun lun; itt_t itt; /* Initiator Task Tag */ __be32 ttt; /* Target Transfer Tag */ __be32 cmdsn; @@ -241,7 +241,7 @@ struct iscsi_nopin { __be16 rsvd2; uint8_t rsvd3; uint8_t dlength[3]; - uint8_t lun[8]; + struct scsi_lun lun; itt_t itt; /* Initiator Task Tag */ __be32 ttt; /* Target Transfer Tag */ __be32 statsn; @@ -257,7 +257,7 @@ struct iscsi_tm { uint8_t rsvd1[2]; uint8_t hlength; uint8_t dlength[3]; - uint8_t lun[8]; + struct scsi_lun lun; itt_t itt; /* Initiator Task Tag */ itt_t rtt; /* Reference Task Tag */ __be32 cmdsn; @@ -315,7 +315,7 @@ struct iscsi_r2t_rsp { uint8_t rsvd2[2]; uint8_t hlength; uint8_t dlength[3]; - uint8_t lun[8]; + struct scsi_lun lun; itt_t itt; /* Initiator Task Tag */ __be32 ttt; /* Target Transfer Tag */ __be32 statsn; @@ -333,7 +333,7 @@ struct iscsi_data { uint8_t rsvd2[2]; uint8_t rsvd3; uint8_t dlength[3]; - uint8_t lun[8]; + struct scsi_lun lun; itt_t itt; __be32 ttt; __be32 rsvd4; @@ -353,7 +353,7 @@ struct iscsi_data_rsp { uint8_t cmd_status; uint8_t hlength; uint8_t dlength[3]; - uint8_t lun[8]; + struct scsi_lun lun; itt_t itt; __be32 ttt; __be32 statsn; diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h index 0f4367751b71..cedcff371c88 100644 --- a/include/scsi/libiscsi.h +++ b/include/scsi/libiscsi.h @@ -115,7 +115,7 @@ struct iscsi_task { /* copied values in case we need to send tmfs */ itt_t hdr_itt; __be32 cmdsn; - uint8_t lun[8]; + struct scsi_lun lun; int itt; /* this ITT */ -- cgit v1.2.3 From 8304bbceee505742925b487fd8ea56e1f8b4b805 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Tue, 22 Mar 2011 14:14:09 -0700 Subject: iscsi: Add Serial Number Arithmetic LT and GT into iscsi_proto.h This patch moves the iscsi_sna_lt() and iscsi_sna_lte(), along with iscsi_sna_gt() and iscsi_sna_gte() from iscsi_target_mod into static inlines inside of include/scsi/iscsi_proto.h This patch also includes the ISCSI_HDR_LEN and ISCSI_CRC_LEN definitions. (Added JesperJ simpliciation for iscsi_sna_* usage) Signed-off-by: Mark Rustad Signed-off-by: Mike Christie Signed-off-by: Nicholas A. Bellinger --- include/scsi/iscsi_proto.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'include') diff --git a/include/scsi/iscsi_proto.h b/include/scsi/iscsi_proto.h index f5f83534fc13..988ba06b3ad6 100644 --- a/include/scsi/iscsi_proto.h +++ b/include/scsi/iscsi_proto.h @@ -29,9 +29,39 @@ /* default iSCSI listen port for incoming connections */ #define ISCSI_LISTEN_PORT 3260 +/* iSCSI header length */ +#define ISCSI_HDR_LEN 48 + +/* iSCSI CRC32C length */ +#define ISCSI_CRC_LEN 4 + /* Padding word length */ #define ISCSI_PAD_LEN 4 +/* + * Serial Number Arithmetic, 32 bits, RFC1982 + */ + +static inline int iscsi_sna_lt(u32 n1, u32 n2) +{ + return (s32)(n1 - n2) < 0; +} + +static inline int iscsi_sna_lte(u32 n1, u32 n2) +{ + return (s32)(n1 - n2) <= 0; +} + +static inline int iscsi_sna_gt(u32 n1, u32 n2) +{ + return (s32)(n1 - n2) > 0; +} + +static inline int iscsi_sna_gte(u32 n1, u32 n2) +{ + return (s32)(n1 - n2) >= 0; +} + /* * useful common(control and data pathes) macro */ -- cgit v1.2.3 From 62cb70118c4efabb3c0a6f962168ddcad4344eef Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 7 Jun 2011 14:17:51 +0100 Subject: drm/gem: add support for private objects These small changes should allow GEM to be used with non shmem objects as well as shmem objects. In the GMA500 case it allows the base framebuffer to appear as a GEM object and thus acquire a handle and work with KMS. For i915 it ought to be trivial to get back the wasted memory but putting the system fb back into stolen RAM and in general I can imagine it allowing the use of GEM and thus KMS with all the older cards that have their framebuffer firmly placed in video RAM. Signed-off-by: Alan Cox Tested-by: Rob Clark Signed-off-by: Dave Airlie --- include/drm/drmP.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/drm/drmP.h b/include/drm/drmP.h index d9c8c6c4639a..9b7c2bb4bb44 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1541,6 +1541,8 @@ struct drm_gem_object *drm_gem_object_alloc(struct drm_device *dev, size_t size); int drm_gem_object_init(struct drm_device *dev, struct drm_gem_object *obj, size_t size); +int drm_gem_private_object_init(struct drm_device *dev, + struct drm_gem_object *obj, size_t size); void drm_gem_object_handle_free(struct drm_gem_object *obj); void drm_gem_vm_open(struct vm_area_struct *vma); void drm_gem_vm_close(struct vm_area_struct *vma); -- cgit v1.2.3 From 5cf49d763eb141d236e92be6d4a0dc94e31fa886 Mon Sep 17 00:00:00 2001 From: Wang Sheng-Hui Date: Mon, 25 Jul 2011 21:02:25 +0800 Subject: jbd: change the field "b_cow_tid" of struct journal_head from type unsigned to tid_t In the definition of struct journal_head, the comment for the field "unsigned b_cow_tid" says the field tracks the last transaction id in which this buffer has been cowed. In the header part of file journal-head.h, it defines typedef unsigned int tid_t; We should use type tid_t to define transaction id fields. Change the field "b_cow_tid" of struct journal_head from type unsigned to tid_t. Signed-off-by: Wang Sheng-Hui Acked-by: Amir Goldstein Signed-off-by: Jan Kara --- include/linux/journal-head.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h index 44e95d0a721f..423cb6d78ee0 100644 --- a/include/linux/journal-head.h +++ b/include/linux/journal-head.h @@ -45,7 +45,7 @@ struct journal_head { * has been cowed * [jbd_lock_bh_state()] */ - unsigned b_cow_tid; + tid_t b_cow_tid; /* * Copy of the buffer data frozen for writing to the log. -- cgit v1.2.3 From b3c4b9825075b680817b9460184e7b576dc97597 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Mon, 25 Jul 2011 15:51:02 -0700 Subject: xen/tracing: fix compile errors when tracing is disabled. When CONFIG_FUNCTION_TRACER is disabled, compilation fails as follows: CC arch/x86/xen/setup.o In file included from arch/x86/include/asm/xen/hypercall.h:42, from arch/x86/xen/setup.c:19: include/trace/events/xen.h:31: warning: 'struct multicall_entry' declared inside parameter list include/trace/events/xen.h:31: warning: its scope is only this definition or declaration, which is probably not what you want include/trace/events/xen.h:31: warning: 'struct multicall_entry' declared inside parameter list include/trace/events/xen.h:31: warning: 'struct multicall_entry' declared inside parameter list include/trace/events/xen.h:31: warning: 'struct multicall_entry' declared inside parameter list [...] arch/x86/xen/trace.c:5: error: '__HYPERVISOR_set_trap_table' undeclared here (not in a function) arch/x86/xen/trace.c:5: error: array index in initializer not of integer type arch/x86/xen/trace.c:5: error: (near initialization for 'xen_hypercall_names') arch/x86/xen/trace.c:6: error: '__HYPERVISOR_mmu_update' undeclared here (not in a function) arch/x86/xen/trace.c:6: error: array index in initializer not of integer type arch/x86/xen/trace.c:6: error: (near initialization for 'xen_hypercall_names') Fix this by making sure struct multicall_entry has a declaration in scope at all times, and don't bother compiling xen/trace.c when tracing is disabled. Reported-by: Randy Dunlap Signed-off-by: Jeremy Fitzhardinge --- include/trace/events/xen.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h index 44d8decee09e..92f1a796829e 100644 --- a/include/trace/events/xen.h +++ b/include/trace/events/xen.h @@ -8,6 +8,8 @@ #include #include +struct multicall_entry; + /* Multicalls */ DECLARE_EVENT_CLASS(xen_mc__batch, TP_PROTO(enum paravirt_lazy_mode mode), -- cgit v1.2.3 From 2d348d1f569f051d2609b04d27bb55cd25eda8fe Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 25 Jul 2011 16:17:35 -0700 Subject: net: Convert struct net_device uc_promisc to bool No need to use int, its uses are boolean. May save a few bytes one day. Signed-off-by: Joe Perches Signed-off-by: David S. Miller --- include/linux/netdevice.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 34f3abc6457a..1d92acc0777b 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1132,7 +1132,7 @@ struct net_device { spinlock_t addr_list_lock; struct netdev_hw_addr_list uc; /* Unicast mac addresses */ struct netdev_hw_addr_list mc; /* Multicast mac addresses */ - int uc_promisc; + bool uc_promisc; unsigned int promiscuity; unsigned int allmulti; -- cgit v1.2.3 From 36a26c69b4c70396ef569c3452690fba0c1dec08 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Tue, 26 Jul 2011 00:35:26 -0700 Subject: kernel.h: Add DIV_ROUND_UP_ULL and DIV_ROUND_UP_SECTOR_T macro usage Add new DIV_ROUND_UP_SECTOR_T macro usage for 32-bit architectures requiring a new DIV_ROUND_UP_ULL, and existing 64-bit usage with DIV_ROUND_UP. Reported-by: Linus Torvalds Reported-by: Andrew Morton Signed-off-by: Nicholas A. Bellinger --- include/linux/kernel.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 567a6f7bbeed..2642497c36fb 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -56,6 +56,14 @@ #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f)) #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d)) +#define DIV_ROUND_UP_ULL(ll,d) \ + ({ unsigned long long _tmp = (ll)+(d)-1; do_div(_tmp, d); _tmp; }) + +#if BITS_PER_LONG == 32 +# define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP_ULL(ll, d) +#else +# define DIV_ROUND_UP_SECTOR_T(ll,d) DIV_ROUND_UP(ll,d) +#endif /* The `const' in roundup() prevents gcc-3.3 from calling __divdi3 */ #define roundup(x, y) ( \ -- cgit v1.2.3 From b207b4d02beb06059478339bbe4672ba715605d6 Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Thu, 21 Jul 2011 17:12:27 +0100 Subject: DMA: PL08x: separately store source/destination slave address Store the source/destination slave address separately into the channel structure. This moves us towards being able to avoid a configuration call each time we use the channel. Acked-by: Linus Walleij Signed-off-by: Russell King Signed-off-by: Vinod Koul --- include/linux/amba/pl08x.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h index 3111385b8ca7..072ab28bbb57 100644 --- a/include/linux/amba/pl08x.h +++ b/include/linux/amba/pl08x.h @@ -173,7 +173,8 @@ struct pl08x_dma_chan { struct tasklet_struct tasklet; char *name; struct pl08x_channel_data *cd; - dma_addr_t runtime_addr; + dma_addr_t src_addr; + dma_addr_t dst_addr; enum dma_data_direction runtime_direction; dma_cookie_t lc; struct list_head pend_list; -- cgit v1.2.3 From f14c426c723634d223344ad820997d92a3e355b6 Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Thu, 21 Jul 2011 17:12:47 +0100 Subject: DMA: PL08x: separately store source/destination cctl Store the source/destination cctl values into the channel structure. This moves us towards being able to avoid a configuration call each time we use the channel. Acked-by: Linus Walleij Signed-off-by: Russell King Signed-off-by: Vinod Koul --- include/linux/amba/pl08x.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h index 072ab28bbb57..47cfe31e5c35 100644 --- a/include/linux/amba/pl08x.h +++ b/include/linux/amba/pl08x.h @@ -175,6 +175,8 @@ struct pl08x_dma_chan { struct pl08x_channel_data *cd; dma_addr_t src_addr; dma_addr_t dst_addr; + u32 src_cctl; + u32 dst_cctl; enum dma_data_direction runtime_direction; dma_cookie_t lc; struct list_head pend_list; -- cgit v1.2.3 From fa020e7d046436cb6642b23dc95012a3064d77e2 Mon Sep 17 00:00:00 2001 From: Russell King - ARM Linux Date: Thu, 21 Jul 2011 17:13:07 +0100 Subject: DMA: PL08x: constify plchan->cd and plat->slave_channels We no longer write to the channel data structure, so we can make it const throughout the driver. Acked-by: Linus Walleij Signed-off-by: Russell King Signed-off-by: Vinod Koul --- include/linux/amba/pl08x.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h index 47cfe31e5c35..e6e28f37d8ec 100644 --- a/include/linux/amba/pl08x.h +++ b/include/linux/amba/pl08x.h @@ -172,7 +172,7 @@ struct pl08x_dma_chan { int phychan_hold; struct tasklet_struct tasklet; char *name; - struct pl08x_channel_data *cd; + const struct pl08x_channel_data *cd; dma_addr_t src_addr; dma_addr_t dst_addr; u32 src_cctl; @@ -205,7 +205,7 @@ struct pl08x_dma_chan { * @mem_buses: buses which memory can be accessed from: PL08X_AHB1 | PL08X_AHB2 */ struct pl08x_platform_data { - struct pl08x_channel_data *slave_channels; + const struct pl08x_channel_data *slave_channels; unsigned int num_slave_channels; struct pl08x_channel_data memcpy_channel; int (*get_signal)(struct pl08x_dma_chan *); -- cgit v1.2.3 From b51beb756aaf0770e4fa8bb2cb142888051aa356 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 26 Jul 2011 12:02:56 +0200 Subject: ALSA: Make pcm.h self-contained Move the macros depending on snd_mask_min() and co out of pcm.h into pcm_params.h. Otherwise using some params_*() macros will give comiple errors without inclusion of pcm_params.h. Also use hw_param_interval_c() and hw_param_mask_c() for const pointer. Reported-by: Tim Blechmann Signed-off-by: Takashi Iwai --- include/sound/pcm.h | 23 ++++++++++++----------- include/sound/pcm_params.h | 16 +++++++++++++++- 2 files changed, 27 insertions(+), 12 deletions(-) (limited to 'include') diff --git a/include/sound/pcm.h b/include/sound/pcm.h index ccf3a6e14f9f..57e71fa33f7c 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -761,17 +761,18 @@ static inline const struct snd_interval *hw_param_interval_c(const struct snd_pc return ¶ms->intervals[var - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL]; } -#define params_access(p) ((__force snd_pcm_access_t)snd_mask_min(hw_param_mask((p), SNDRV_PCM_HW_PARAM_ACCESS))) -#define params_format(p) ((__force snd_pcm_format_t)snd_mask_min(hw_param_mask((p), SNDRV_PCM_HW_PARAM_FORMAT))) -#define params_subformat(p) snd_mask_min(hw_param_mask((p), SNDRV_PCM_HW_PARAM_SUBFORMAT)) -#define params_channels(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_CHANNELS)->min -#define params_rate(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_RATE)->min -#define params_period_size(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min -#define params_period_bytes(p) ((params_period_size(p)*snd_pcm_format_physical_width(params_format(p))*params_channels(p))/8) -#define params_periods(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_PERIODS)->min -#define params_buffer_size(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_BUFFER_SIZE)->min -#define params_buffer_bytes(p) hw_param_interval((p), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->min - +#define params_channels(p) \ + (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_CHANNELS)->min) +#define params_rate(p) \ + (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_RATE)->min) +#define params_period_size(p) \ + (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_PERIOD_SIZE)->min) +#define params_periods(p) \ + (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_PERIODS)->min) +#define params_buffer_size(p) \ + (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_BUFFER_SIZE)->min) +#define params_buffer_bytes(p) \ + (hw_param_interval_c((p), SNDRV_PCM_HW_PARAM_BUFFER_BYTES)->min) int snd_interval_refine(struct snd_interval *i, const struct snd_interval *v); void snd_interval_mul(const struct snd_interval *a, const struct snd_interval *b, struct snd_interval *c); diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h index 85cf1cf4f31a..f494f1e3c900 100644 --- a/include/sound/pcm_params.h +++ b/include/sound/pcm_params.h @@ -337,5 +337,19 @@ static inline unsigned int sub(unsigned int a, unsigned int b) return 0; } -#endif /* __SOUND_PCM_PARAMS_H */ +#define params_access(p) ((__force snd_pcm_access_t)\ + snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_ACCESS))) +#define params_format(p) ((__force snd_pcm_format_t)\ + snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_FORMAT))) +#define params_subformat(p) \ + snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_SUBFORMAT)) +static inline unsigned int +params_period_bytes(const struct snd_pcm_hw_params *p) +{ + return (params_period_size(p) * + snd_pcm_format_physical_width(params_format(p)) * + params_channels(p)) / 8; +} + +#endif /* __SOUND_PCM_PARAMS_H */ -- cgit v1.2.3 From a209dfc7b0d94bd6fa94553c097836a2e6d0f0ba Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 26 Jul 2011 11:36:34 +0200 Subject: vfs: dont chain pipe/anon/socket on superblock s_inodes list Workloads using pipes and sockets hit inode_sb_list_lock contention. superblock s_inodes list is needed for quota, dirty, pagecache and fsnotify management. pipe/anon/socket fs are clearly not candidates for these. Signed-off-by: Eric Dumazet Reviewed-by: Christoph Hellwig Signed-off-by: Al Viro --- include/linux/fs.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index a6658043258a..cc363fa7bb82 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2310,7 +2310,8 @@ extern void __iget(struct inode * inode); extern void iget_failed(struct inode *); extern void end_writeback(struct inode *); extern void __destroy_inode(struct inode *); -extern struct inode *new_inode(struct super_block *); +extern struct inode *new_inode_pseudo(struct super_block *sb); +extern struct inode *new_inode(struct super_block *sb); extern void free_inode_nonrcu(struct inode *inode); extern int should_remove_suid(struct dentry *); extern int file_remove_suid(struct file *); -- cgit v1.2.3 From 4cf9d544631c92809cb94ea680c71df56e9437aa Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Tue, 26 Jul 2011 11:27:24 -0700 Subject: libceph: don't time out osd requests that haven't been received Keep track of when an outgoing message is ACKed (i.e., the server fully received it and, presumably, queued it for processing). Time out OSD requests only if it's been too long since they've been received. This prevents timeouts and connection thrashing when the OSDs are simply busy and are throttling the requests they read off the network. Reviewed-by: Yehuda Sadeh Signed-off-by: Sage Weil --- include/linux/ceph/messenger.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h index 31d91a64838b..d7adf151d335 100644 --- a/include/linux/ceph/messenger.h +++ b/include/linux/ceph/messenger.h @@ -94,6 +94,7 @@ struct ceph_msg { bool more_to_follow; bool needs_out_seq; int front_max; + unsigned long ack_stamp; /* tx: when we were acked */ struct ceph_msgpool *pool; }; -- cgit v1.2.3 From 6e7a333eaa522ef73be01caec7a01521490aaf00 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 22 Jul 2011 09:12:51 +0000 Subject: rtc: Limit RTC PIE frequency The RTC pie hrtimer is self rearming. We really need to limit the frequency to something sensible. Thus limit it to the 8192Hz max value from the rtc man documentation Cc: Willy Tarreau Cc: stable@kernel.org Signed-off-by: Thomas Gleixner [jstultz: slightly reworked to use RTC_MAX_FREQ value] Signed-off-by: John Stultz --- include/linux/rtc.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/rtc.h b/include/linux/rtc.h index b27ebea25660..93f4d035076b 100644 --- a/include/linux/rtc.h +++ b/include/linux/rtc.h @@ -97,6 +97,9 @@ struct rtc_pll_info { #define RTC_AF 0x20 /* Alarm interrupt */ #define RTC_UF 0x10 /* Update interrupt for 1Hz RTC */ + +#define RTC_MAX_FREQ 8192 + #ifdef __KERNEL__ #include -- cgit v1.2.3 From 1f4c025b5a5520fd2571244196b1b01ad96d18f6 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 26 Jul 2011 16:08:21 -0700 Subject: memcg: export memory cgroup's swappiness with mem_cgroup_swappiness() Each memory cgroup has a 'swappiness' value which can be accessed by get_swappiness(memcg). The major user is try_to_free_mem_cgroup_pages() and swappiness is passed by argument. It's propagated by scan_control. get_swappiness() is a static function but some planned updates will need to get swappiness from files other than memcontrol.c This patch exports get_swappiness() as mem_cgroup_swappiness(). With this, we can remove the argument of swapiness from try_to_free... and drop swappiness from scan_control. only memcg uses it. Signed-off-by: KAMEZAWA Hiroyuki Cc: Daisuke Nishimura Cc: Balbir Singh Cc: Michal Hocko Cc: Ying Han Cc: Shaohua Li Cc: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/swap.h | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/swap.h b/include/linux/swap.h index a273468f8285..44558b600ee3 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -252,11 +252,9 @@ static inline void lru_cache_add_file(struct page *page) extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *mask); extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem, - gfp_t gfp_mask, bool noswap, - unsigned int swappiness); + gfp_t gfp_mask, bool noswap); extern unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, gfp_t gfp_mask, bool noswap, - unsigned int swappiness, struct zone *zone, unsigned long *nr_scanned); extern int __isolate_lru_page(struct page *page, int mode, int file); @@ -299,7 +297,14 @@ static inline void scan_unevictable_unregister_node(struct node *node) extern int kswapd_run(int nid); extern void kswapd_stop(int nid); - +#ifdef CONFIG_CGROUP_MEM_RES_CTLR +extern int mem_cgroup_swappiness(struct mem_cgroup *mem); +#else +static inline int mem_cgroup_swappiness(struct mem_cgroup *mem) +{ + return vm_swappiness; +} +#endif #ifdef CONFIG_SWAP /* linux/mm/page_io.c */ extern int swap_readpage(struct page *); -- cgit v1.2.3 From bb2a0de92c891b8feeedc0178acb3ae009d899a8 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 26 Jul 2011 16:08:22 -0700 Subject: memcg: consolidate memory cgroup lru stat functions In mm/memcontrol.c, there are many lru stat functions as.. mem_cgroup_zone_nr_lru_pages mem_cgroup_node_nr_file_lru_pages mem_cgroup_nr_file_lru_pages mem_cgroup_node_nr_anon_lru_pages mem_cgroup_nr_anon_lru_pages mem_cgroup_node_nr_unevictable_lru_pages mem_cgroup_nr_unevictable_lru_pages mem_cgroup_node_nr_lru_pages mem_cgroup_nr_lru_pages mem_cgroup_get_local_zonestat Some of them are under #ifdef MAX_NUMNODES >1 and others are not. This seems bad. This patch consolidates all functions into mem_cgroup_zone_nr_lru_pages() mem_cgroup_node_nr_lru_pages() mem_cgroup_nr_lru_pages() For these functions, "which LRU?" information is passed by a mask. example: mem_cgroup_nr_lru_pages(mem, BIT(LRU_ACTIVE_ANON)) And I added some macro as ALL_LRU, ALL_LRU_FILE, ALL_LRU_ANON. example: mem_cgroup_nr_lru_pages(mem, ALL_LRU) BTW, considering layout of NUMA memory placement of counters, this patch seems to be better. Now, when we gather all LRU information, we scan in following orer for_each_lru -> for_each_node -> for_each_zone. This means we'll touch cache lines in different node in turn. After patch, we'll scan for_each_node -> for_each_zone -> for_each_lru(mask) Then, we'll gather information in the same cacheline at once. [akpm@linux-foundation.org: fix warnigns, build error] Signed-off-by: KAMEZAWA Hiroyuki Cc: Daisuke Nishimura Cc: Balbir Singh Cc: Michal Hocko Cc: Ying Han Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 7 +++---- include/linux/mmzone.h | 6 ++++++ 2 files changed, 9 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 50940da6adf3..affd5b19b86c 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -111,8 +111,7 @@ int mem_cgroup_inactive_anon_is_low(struct mem_cgroup *memcg); int mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg); int mem_cgroup_select_victim_node(struct mem_cgroup *memcg); unsigned long mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, - struct zone *zone, - enum lru_list lru); + int nid, int zid, unsigned int lrumask); struct zone_reclaim_stat *mem_cgroup_get_reclaim_stat(struct mem_cgroup *memcg, struct zone *zone); struct zone_reclaim_stat* @@ -313,8 +312,8 @@ mem_cgroup_inactive_file_is_low(struct mem_cgroup *memcg) } static inline unsigned long -mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, struct zone *zone, - enum lru_list lru) +mem_cgroup_zone_nr_lru_pages(struct mem_cgroup *memcg, int nid, int zid, + unsigned int lru_mask) { return 0; } diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 9f7c3ebcbbad..0a2d3d620feb 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -158,6 +158,12 @@ static inline int is_unevictable_lru(enum lru_list l) return (l == LRU_UNEVICTABLE); } +/* Mask used at gathering information at once (see memcontrol.c) */ +#define LRU_ALL_FILE (BIT(LRU_INACTIVE_FILE) | BIT(LRU_ACTIVE_FILE)) +#define LRU_ALL_ANON (BIT(LRU_INACTIVE_ANON) | BIT(LRU_ACTIVE_ANON)) +#define LRU_ALL_EVICTABLE (LRU_ALL_FILE | LRU_ALL_ANON) +#define LRU_ALL ((1 << NR_LRU_LISTS) - 1) + enum zone_watermarks { WMARK_MIN, WMARK_LOW, -- cgit v1.2.3 From 82f9d486e59f588c7d100865c36510644abda356 Mon Sep 17 00:00:00 2001 From: KAMEZAWA Hiroyuki Date: Tue, 26 Jul 2011 16:08:26 -0700 Subject: memcg: add memory.vmscan_stat The commit log of 0ae5e89c60c9 ("memcg: count the soft_limit reclaim in...") says it adds scanning stats to memory.stat file. But it doesn't because we considered we needed to make a concensus for such new APIs. This patch is a trial to add memory.scan_stat. This shows - the number of scanned pages(total, anon, file) - the number of rotated pages(total, anon, file) - the number of freed pages(total, anon, file) - the number of elaplsed time (including sleep/pause time) for both of direct/soft reclaim. The biggest difference with oringinal Ying's one is that this file can be reset by some write, as # echo 0 ...../memory.scan_stat Example of output is here. This is a result after make -j 6 kernel under 300M limit. [kamezawa@bluextal ~]$ cat /cgroup/memory/A/memory.scan_stat [kamezawa@bluextal ~]$ cat /cgroup/memory/A/memory.vmscan_stat scanned_pages_by_limit 9471864 scanned_anon_pages_by_limit 6640629 scanned_file_pages_by_limit 2831235 rotated_pages_by_limit 4243974 rotated_anon_pages_by_limit 3971968 rotated_file_pages_by_limit 272006 freed_pages_by_limit 2318492 freed_anon_pages_by_limit 962052 freed_file_pages_by_limit 1356440 elapsed_ns_by_limit 351386416101 scanned_pages_by_system 0 scanned_anon_pages_by_system 0 scanned_file_pages_by_system 0 rotated_pages_by_system 0 rotated_anon_pages_by_system 0 rotated_file_pages_by_system 0 freed_pages_by_system 0 freed_anon_pages_by_system 0 freed_file_pages_by_system 0 elapsed_ns_by_system 0 scanned_pages_by_limit_under_hierarchy 9471864 scanned_anon_pages_by_limit_under_hierarchy 6640629 scanned_file_pages_by_limit_under_hierarchy 2831235 rotated_pages_by_limit_under_hierarchy 4243974 rotated_anon_pages_by_limit_under_hierarchy 3971968 rotated_file_pages_by_limit_under_hierarchy 272006 freed_pages_by_limit_under_hierarchy 2318492 freed_anon_pages_by_limit_under_hierarchy 962052 freed_file_pages_by_limit_under_hierarchy 1356440 elapsed_ns_by_limit_under_hierarchy 351386416101 scanned_pages_by_system_under_hierarchy 0 scanned_anon_pages_by_system_under_hierarchy 0 scanned_file_pages_by_system_under_hierarchy 0 rotated_pages_by_system_under_hierarchy 0 rotated_anon_pages_by_system_under_hierarchy 0 rotated_file_pages_by_system_under_hierarchy 0 freed_pages_by_system_under_hierarchy 0 freed_anon_pages_by_system_under_hierarchy 0 freed_file_pages_by_system_under_hierarchy 0 elapsed_ns_by_system_under_hierarchy 0 total_xxxx is for hierarchy management. This will be useful for further memcg developments and need to be developped before we do some complicated rework on LRU/softlimit management. This patch adds a new struct memcg_scanrecord into scan_control struct. sc->nr_scanned at el is not designed for exporting information. For example, nr_scanned is reset frequentrly and incremented +2 at scanning mapped pages. To avoid complexity, I added a new param in scan_control which is for exporting scanning score. Signed-off-by: KAMEZAWA Hiroyuki Cc: Daisuke Nishimura Cc: Michal Hocko Cc: Ying Han Cc: Andrew Bresticker Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 19 +++++++++++++++++++ include/linux/swap.h | 6 ------ 2 files changed, 19 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index affd5b19b86c..b96600786913 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -39,6 +39,16 @@ extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, struct mem_cgroup *mem_cont, int active, int file); +struct memcg_scanrecord { + struct mem_cgroup *mem; /* scanend memory cgroup */ + struct mem_cgroup *root; /* scan target hierarchy root */ + int context; /* scanning context (see memcontrol.c) */ + unsigned long nr_scanned[2]; /* the number of scanned pages */ + unsigned long nr_rotated[2]; /* the number of rotated pages */ + unsigned long nr_freed[2]; /* the number of freed pages */ + unsigned long elapsed; /* nsec of time elapsed while scanning */ +}; + #ifdef CONFIG_CGROUP_MEM_RES_CTLR /* * All "charge" functions with gfp_mask should use GFP_KERNEL or @@ -119,6 +129,15 @@ mem_cgroup_get_reclaim_stat_from_page(struct page *page); extern void mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p); +extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem, + gfp_t gfp_mask, bool noswap, + struct memcg_scanrecord *rec); +extern unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, + gfp_t gfp_mask, bool noswap, + struct zone *zone, + struct memcg_scanrecord *rec, + unsigned long *nr_scanned); + #ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP extern int do_swap_account; #endif diff --git a/include/linux/swap.h b/include/linux/swap.h index 44558b600ee3..91d5fcc83116 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -251,12 +251,6 @@ static inline void lru_cache_add_file(struct page *page) /* linux/mm/vmscan.c */ extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *mask); -extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem, - gfp_t gfp_mask, bool noswap); -extern unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, - gfp_t gfp_mask, bool noswap, - struct zone *zone, - unsigned long *nr_scanned); extern int __isolate_lru_page(struct page *page, int mode, int file); extern unsigned long shrink_all_memory(unsigned long nr_pages); extern int vm_swappiness; -- cgit v1.2.3 From 778d3b0ff0654ad7092bf823fd32010066b12365 Mon Sep 17 00:00:00 2001 From: Michal Hocko Date: Tue, 26 Jul 2011 16:08:30 -0700 Subject: cpusets: randomize node rotor used in cpuset_mem_spread_node() [ This patch has already been accepted as commit 0ac0c0d0f837 but later reverted (commit 35926ff5fba8) because it itroduced arch specific __node_random which was defined only for x86 code so it broke other archs. This is a followup without any arch specific code. Other than that there are no functional changes.] Some workloads that create a large number of small files tend to assign too many pages to node 0 (multi-node systems). Part of the reason is that the rotor (in cpuset_mem_spread_node()) used to assign nodes starts at node 0 for newly created tasks. This patch changes the rotor to be initialized to a random node number of the cpuset. [akpm@linux-foundation.org: fix layout] [Lee.Schermerhorn@hp.com: Define stub numa_random() for !NUMA configuration] [mhocko@suse.cz: Make it arch independent] [akpm@linux-foundation.org: fix CONFIG_NUMA=y, MAX_NUMNODES>1 build] Signed-off-by: Jack Steiner Signed-off-by: Lee Schermerhorn Signed-off-by: Michal Hocko Reviewed-by: KOSAKI Motohiro Cc: Christoph Lameter Cc: Pekka Enberg Cc: Paul Menage Cc: Jack Steiner Cc: Robin Holt Cc: David Rientjes Cc: Christoph Lameter Cc: David Rientjes Cc: Jack Steiner Cc: KOSAKI Motohiro Cc: Lee Schermerhorn Cc: Michal Hocko Cc: Paul Menage Cc: Pekka Enberg Cc: Robin Holt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/bitmap.h | 1 + include/linux/nodemask.h | 13 +++++++++++++ 2 files changed, 14 insertions(+) (limited to 'include') diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index dcafe0bf0005..3bac44cce142 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -144,6 +144,7 @@ extern int bitmap_find_free_region(unsigned long *bitmap, int bits, int order); extern void bitmap_release_region(unsigned long *bitmap, int pos, int order); extern int bitmap_allocate_region(unsigned long *bitmap, int pos, int order); extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits); +extern int bitmap_ord_to_pos(const unsigned long *bitmap, int n, int bits); #define BITMAP_LAST_WORD_MASK(nbits) \ ( \ diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h index dba35e413371..7afc36334d52 100644 --- a/include/linux/nodemask.h +++ b/include/linux/nodemask.h @@ -66,6 +66,8 @@ * int num_online_nodes() Number of online Nodes * int num_possible_nodes() Number of all possible Nodes * + * int node_random(mask) Random node with set bit in mask + * * int node_online(node) Is some node online? * int node_possible(node) Is some node possible? * @@ -430,6 +432,7 @@ static inline void node_set_offline(int nid) node_clear_state(nid, N_ONLINE); nr_online_nodes = num_node_state(N_ONLINE); } + #else static inline int node_state(int node, enum node_states state) @@ -460,6 +463,16 @@ static inline int num_node_state(enum node_states state) #define node_set_online(node) node_set_state((node), N_ONLINE) #define node_set_offline(node) node_clear_state((node), N_ONLINE) + +#endif + +#if defined(CONFIG_NUMA) && (MAX_NUMNODES > 1) +extern int node_random(const nodemask_t *maskp); +#else +static inline int node_random(const nodemask_t *mask) +{ + return 0; +} #endif #define node_online_map node_states[N_ONLINE] -- cgit v1.2.3 From a64a26e822ddb739de464540dfd2cbb6abce47d5 Mon Sep 17 00:00:00 2001 From: KOSAKI Motohiro Date: Tue, 26 Jul 2011 16:08:45 -0700 Subject: cpumask: add cpumask_var_t documentation cpumask_var_t has one notable difference from cpumask_t. Add the explanation. Signed-off-by: KOSAKI Motohiro Cc: Thiago Farina Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/cpumask.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'include') diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index b24ac56477b4..4f7a63237471 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -617,6 +617,20 @@ static inline size_t cpumask_size(void) * ... use 'tmpmask' like a normal struct cpumask * ... * * free_cpumask_var(tmpmask); + * + * + * However, one notable exception is there. alloc_cpumask_var() allocates + * only nr_cpumask_bits bits (in the other hand, real cpumask_t always has + * NR_CPUS bits). Therefore you don't have to dereference cpumask_var_t. + * + * cpumask_var_t tmpmask; + * if (!alloc_cpumask_var(&tmpmask, GFP_KERNEL)) + * return -ENOMEM; + * + * var = *tmpmask; + * + * This code makes NR_CPUS length memcopy and brings to a memory corruption. + * cpumask_copy() provide safe copy functionality. */ #ifdef CONFIG_CPUMASK_OFFSTACK typedef struct cpumask *cpumask_var_t; -- cgit v1.2.3 From b34a6b1da371ed8af1221459a18c67970f7e3d53 Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Tue, 26 Jul 2011 16:08:48 -0700 Subject: ipc: introduce shm_rmid_forced sysctl Add support for the shm_rmid_forced sysctl. If set to 1, all shared memory objects in current ipc namespace will be automatically forced to use IPC_RMID. The POSIX way of handling shmem allows one to create shm objects and call shmdt(), leaving shm object associated with no process, thus consuming memory not counted via rlimits. With shm_rmid_forced=1 the shared memory object is counted at least for one process, so OOM killer may effectively kill the fat process holding the shared memory. It obviously breaks POSIX - some programs relying on the feature would stop working. So set shm_rmid_forced=1 only if you're sure nobody uses "orphaned" memory. Use shm_rmid_forced=0 by default for compatability reasons. The feature was previously impemented in -ow as a configure option. [akpm@linux-foundation.org: fix documentation, per Randy] [akpm@linux-foundation.org: fix warning] [akpm@linux-foundation.org: readability/conventionality tweaks] [akpm@linux-foundation.org: fix shm_rmid_forced/shm_forced_rmid confusion, use standard comment layout] Signed-off-by: Vasiliy Kulikov Cc: Randy Dunlap Cc: "Eric W. Biederman" Cc: "Serge E. Hallyn" Cc: Daniel Lezcano Cc: Oleg Nesterov Cc: Tejun Heo Cc: Ingo Molnar Cc: Alan Cox Cc: Solar Designer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/ipc_namespace.h | 7 +++++++ include/linux/shm.h | 4 ++++ 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h index a6d1655f9607..8a297a5e794c 100644 --- a/include/linux/ipc_namespace.h +++ b/include/linux/ipc_namespace.h @@ -44,6 +44,11 @@ struct ipc_namespace { size_t shm_ctlall; int shm_ctlmni; int shm_tot; + /* + * Defines whether IPC_RMID is forced for _all_ shm segments regardless + * of shmctl() + */ + int shm_rmid_forced; struct notifier_block ipcns_nb; @@ -72,6 +77,7 @@ extern int register_ipcns_notifier(struct ipc_namespace *); extern int cond_register_ipcns_notifier(struct ipc_namespace *); extern void unregister_ipcns_notifier(struct ipc_namespace *); extern int ipcns_notify(unsigned long); +extern void shm_destroy_orphaned(struct ipc_namespace *ns); #else /* CONFIG_SYSVIPC */ static inline int register_ipcns_notifier(struct ipc_namespace *ns) { return 0; } @@ -79,6 +85,7 @@ static inline int cond_register_ipcns_notifier(struct ipc_namespace *ns) { return 0; } static inline void unregister_ipcns_notifier(struct ipc_namespace *ns) { } static inline int ipcns_notify(unsigned long l) { return 0; } +static inline void shm_destroy_orphaned(struct ipc_namespace *ns) {} #endif /* CONFIG_SYSVIPC */ #ifdef CONFIG_POSIX_MQUEUE diff --git a/include/linux/shm.h b/include/linux/shm.h index eca6235a46c0..7d27ffde0190 100644 --- a/include/linux/shm.h +++ b/include/linux/shm.h @@ -106,6 +106,7 @@ struct shmid_kernel /* private to the kernel */ #ifdef CONFIG_SYSVIPC long do_shmat(int shmid, char __user *shmaddr, int shmflg, unsigned long *addr); extern int is_file_shm_hugepages(struct file *file); +extern void exit_shm(struct task_struct *task); #else static inline long do_shmat(int shmid, char __user *shmaddr, int shmflg, unsigned long *addr) @@ -116,6 +117,9 @@ static inline int is_file_shm_hugepages(struct file *file) { return 0; } +static inline void exit_shm(struct task_struct *task) +{ +} #endif #endif /* __KERNEL__ */ -- cgit v1.2.3 From 91f6cdf86e8a2bd9b9c292a750179dc2c728a2d4 Mon Sep 17 00:00:00 2001 From: WANG Cong Date: Tue, 26 Jul 2011 16:08:50 -0700 Subject: include/linux/dma-mapping.h: remove DMA_xxBIT_MASK macros git grep shows there are no users in tree, so we can remove them safely. Signed-off-by: WANG Cong Acked-by: FUJITA Tomonori Acked-by: Jiri Slaby Acked-by: Vinod Koul Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/dma-mapping.h | 21 --------------------- 1 file changed, 21 deletions(-) (limited to 'include') diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 1a167c48d84d..347fdc32177a 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -46,27 +46,6 @@ struct dma_map_ops { #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) -typedef u64 DMA_nnBIT_MASK __deprecated; - -/* - * NOTE: do not use the below macros in new code and do not add new definitions - * here. - * - * Instead, just open-code DMA_BIT_MASK(n) within your driver - */ -#define DMA_64BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(64) -#define DMA_48BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(48) -#define DMA_47BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(47) -#define DMA_40BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(40) -#define DMA_39BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(39) -#define DMA_35BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(35) -#define DMA_32BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(32) -#define DMA_31BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(31) -#define DMA_30BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(30) -#define DMA_29BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(29) -#define DMA_28BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(28) -#define DMA_24BIT_MASK (DMA_nnBIT_MASK)DMA_BIT_MASK(24) - #define DMA_MASK_NONE 0x0ULL static inline int valid_dma_direction(int dma_direction) -- cgit v1.2.3 From c958474b6d721ff09e4abf143efc07365d63aea5 Mon Sep 17 00:00:00 2001 From: Mandeep Singh Baines Date: Tue, 26 Jul 2011 16:08:54 -0700 Subject: panic, vt: do not force oops output when panic_timeout < 0 Don't force output if you intend to reboot immediately. In this patch, I'm disabling the functionality enabled by vc->vc_panic_force_write if panic_timeout < 0 (i.e. no timeout). vc_panic_force_write is only enabled for fb video consoles if the FBINFO_CAN_FORCE_OUTPUT flag is set. For our application, we're using ram_oops to preserved the panic in memory. We want to reliably, and as fast as possible, machine_restart. The vc_panic_force_write flag results in a bunch of graphics driver code to be invoked which slows down restart and decreases reliability. Since we're already storing the panic in RAM and are going to reboot immediately, there is no benefit in mode switching back to the vc in order to display the panic output. The log buffer will get flushed by the console_unblank() call so remote management consoles should see all output. Signed-off-by: Mandeep Singh Baines Cc: Huang Ying Cc: Andi Kleen Cc: Hugh Dickins Cc: Olaf Hering Cc: Jesse Barnes Cc: Dave Airlie Cc: Greg Kroah-Hartman Acked-by: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/vt_kern.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h index 4d05e14ea60c..c2164fad0083 100644 --- a/include/linux/vt_kern.h +++ b/include/linux/vt_kern.h @@ -137,7 +137,7 @@ int vty_init(const struct file_operations *console_fops); static inline bool vt_force_oops_output(struct vc_data *vc) { - if (oops_in_progress && vc->vc_panic_force_write) + if (oops_in_progress && vc->vc_panic_force_write && panic_timeout >= 0) return true; return false; } -- cgit v1.2.3 From 6b4d2a2733b9a17112f746d498c9f9a0427dcdd8 Mon Sep 17 00:00:00 2001 From: Sergiu Iordache Date: Tue, 26 Jul 2011 16:08:58 -0700 Subject: ramoops: move dump_oops into platform data The platform driver currently allows setting the mem_size and mem_address. ince dump_oops is also a module parameter it would be more consistent if it could be set through platform data as well. Signed-off-by: Sergiu Iordache Acked-by: Marco Stornelli Cc: "Ahmed S. Darwish" Cc: Artem Bityutskiy Cc: Kyungmin Park Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/ramoops.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/ramoops.h b/include/linux/ramoops.h index 0ae68a2c1212..7105c4b3a24e 100644 --- a/include/linux/ramoops.h +++ b/include/linux/ramoops.h @@ -10,6 +10,7 @@ struct ramoops_platform_data { unsigned long mem_size; unsigned long mem_address; + int dump_oops; }; #endif -- cgit v1.2.3 From 3e5c4fadb9943c7539364d0c8425db071a2020e4 Mon Sep 17 00:00:00 2001 From: Sergiu Iordache Date: Tue, 26 Jul 2011 16:08:59 -0700 Subject: ramoops: make record_size a module parameter The size of the dump is currently set using the RECORD_SIZE macro which is set to a page size. This patch makes the record size a module parameter and allows it to be set through platform data as well to allow larger dumps if needed. Signed-off-by: Sergiu Iordache Acked-by: Marco Stornelli Cc: "Ahmed S. Darwish" Cc: Artem Bityutskiy Cc: Kyungmin Park Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/ramoops.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/ramoops.h b/include/linux/ramoops.h index 7105c4b3a24e..484fef81cd3a 100644 --- a/include/linux/ramoops.h +++ b/include/linux/ramoops.h @@ -10,6 +10,7 @@ struct ramoops_platform_data { unsigned long mem_size; unsigned long mem_address; + unsigned long record_size; int dump_oops; }; -- cgit v1.2.3 From 6b16f748a0d4546726bb53cad58525adfd6425e9 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Tue, 26 Jul 2011 16:09:00 -0700 Subject: fault-injection: remove nonexistent function extern should_fail_srandom() does not exist. Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/fault-inject.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h index 7b64ad40e4ce..7b72328cc8fe 100644 --- a/include/linux/fault-inject.h +++ b/include/linux/fault-inject.h @@ -57,7 +57,6 @@ struct fault_attr { #define DECLARE_FAULT_ATTR(name) struct fault_attr name = FAULT_ATTR_INITIALIZER int setup_fault_attr(struct fault_attr *attr, char *str); -void should_fail_srandom(unsigned long entropy); bool should_fail(struct fault_attr *attr, ssize_t size); #ifdef CONFIG_FAULT_INJECTION_DEBUG_FS -- cgit v1.2.3 From 7f5ddcc8d3eaccd5e169fda738530f937509645e Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Tue, 26 Jul 2011 16:09:02 -0700 Subject: fault-injection: use debugfs_remove_recursive Use debugfs_remove_recursive() to simplify initialization and deinitialization of fault injection debugfs files. Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/fault-inject.h | 18 +----------------- 1 file changed, 1 insertion(+), 17 deletions(-) (limited to 'include') diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h index 7b72328cc8fe..a842db638380 100644 --- a/include/linux/fault-inject.h +++ b/include/linux/fault-inject.h @@ -27,23 +27,7 @@ struct fault_attr { unsigned long count; #ifdef CONFIG_FAULT_INJECTION_DEBUG_FS - - struct { - struct dentry *dir; - - struct dentry *probability_file; - struct dentry *interval_file; - struct dentry *times_file; - struct dentry *space_file; - struct dentry *verbose_file; - struct dentry *task_filter_file; - struct dentry *stacktrace_depth_file; - struct dentry *require_start_file; - struct dentry *require_end_file; - struct dentry *reject_start_file; - struct dentry *reject_end_file; - } dentries; - + struct dentry *dir; #endif }; -- cgit v1.2.3 From 148817ba092f9f6edd35bad3c6c6b8e8f90fe2ed Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Tue, 26 Jul 2011 16:09:04 -0700 Subject: asm-generic: add another generic ext2 atomic bitops The majority of architectures implement ext2 atomic bitops as test_and_{set,clear}_bit() without spinlock. This adds this type of generic implementation in ext2-atomic-setbit.h and use it wherever possible. Signed-off-by: Akinobu Mita Suggested-by: Andreas Dilger Suggested-by: Arnd Bergmann Acked-by: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/bitops/ext2-atomic-setbit.h | 11 +++++++++++ include/asm-generic/bitops/ext2-atomic.h | 4 ++++ 2 files changed, 15 insertions(+) create mode 100644 include/asm-generic/bitops/ext2-atomic-setbit.h (limited to 'include') diff --git a/include/asm-generic/bitops/ext2-atomic-setbit.h b/include/asm-generic/bitops/ext2-atomic-setbit.h new file mode 100644 index 000000000000..5a0997857b34 --- /dev/null +++ b/include/asm-generic/bitops/ext2-atomic-setbit.h @@ -0,0 +1,11 @@ +#ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_SETBIT_H_ +#define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_SETBIT_H_ + +/* + * Atomic bitops based version of ext2 atomic bitops + */ + +#define ext2_set_bit_atomic(l, nr, addr) test_and_set_bit_le(nr, addr) +#define ext2_clear_bit_atomic(l, nr, addr) test_and_clear_bit_le(nr, addr) + +#endif /* _ASM_GENERIC_BITOPS_EXT2_ATOMIC_SETBIT_H_ */ diff --git a/include/asm-generic/bitops/ext2-atomic.h b/include/asm-generic/bitops/ext2-atomic.h index ecf1c9d8a7cc..87f0f109d7f1 100644 --- a/include/asm-generic/bitops/ext2-atomic.h +++ b/include/asm-generic/bitops/ext2-atomic.h @@ -1,6 +1,10 @@ #ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_ #define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_ +/* + * Spinlock based version of ext2 atomic bitops + */ + #define ext2_set_bit_atomic(lock, nr, addr) \ ({ \ int ret; \ -- cgit v1.2.3 From 60063497a95e716c9a689af3be2687d261f115b4 Mon Sep 17 00:00:00 2001 From: Arun Sharma Date: Tue, 26 Jul 2011 16:09:06 -0700 Subject: atomic: use This allows us to move duplicated code in (atomic_inc_not_zero() for now) to Signed-off-by: Arun Sharma Reviewed-by: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Cc: Eric Dumazet Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/acpi/platform/aclinux.h | 2 +- include/asm-generic/atomic.h | 2 -- include/asm-generic/local.h | 2 +- include/asm-generic/local64.h | 2 +- include/drm/ttm/ttm_lock.h | 2 +- include/linux/aio.h | 2 +- include/linux/atmdev.h | 2 +- include/linux/atomic.h | 9 +++++++++ include/linux/backing-dev.h | 2 +- include/linux/bit_spinlock.h | 2 +- include/linux/buffer_head.h | 2 +- include/linux/configfs.h | 2 +- include/linux/connector.h | 2 +- include/linux/cred.h | 2 +- include/linux/crypto.h | 2 +- include/linux/dcache.h | 2 +- include/linux/debug_locks.h | 2 +- include/linux/device.h | 2 +- include/linux/edac.h | 2 +- include/linux/fault-inject.h | 2 +- include/linux/fdtable.h | 2 +- include/linux/filter.h | 2 +- include/linux/firewire.h | 2 +- include/linux/fsnotify_backend.h | 2 +- include/linux/interrupt.h | 2 +- include/linux/jump_label.h | 2 +- include/linux/kdb.h | 2 +- include/linux/key.h | 2 +- include/linux/kgdb.h | 2 +- include/linux/kobject.h | 2 +- include/linux/mlx4/device.h | 2 +- include/linux/mman.h | 2 +- include/linux/mmzone.h | 2 +- include/linux/mount.h | 2 +- include/linux/mutex.h | 2 +- include/linux/netdevice.h | 2 +- include/linux/nfs_fs_sb.h | 2 +- include/linux/oprofile.h | 2 +- include/linux/pci.h | 2 +- include/linux/perf_event.h | 2 +- include/linux/phy.h | 2 +- include/linux/proc_fs.h | 2 +- include/linux/quota.h | 2 +- include/linux/rwsem.h | 2 +- include/linux/sem.h | 2 +- include/linux/skbuff.h | 2 +- include/linux/sonet.h | 2 +- include/linux/spinlock.h | 2 +- include/linux/sunrpc/auth.h | 2 +- include/linux/sunrpc/cache.h | 2 +- include/linux/sunrpc/timer.h | 2 +- include/linux/swap.h | 2 +- include/linux/sysfs.h | 2 +- include/linux/vmstat.h | 2 +- include/linux/workqueue.h | 2 +- include/net/ax25.h | 2 +- include/net/cipso_ipv4.h | 2 +- include/net/flow.h | 2 +- include/net/inet_hashtables.h | 2 +- include/net/inet_timewait_sock.h | 2 +- include/net/inetpeer.h | 2 +- include/net/ip_vs.h | 2 +- include/net/lib80211.h | 2 +- include/net/llc.h | 2 +- include/net/neighbour.h | 2 +- include/net/net_namespace.h | 2 +- include/net/netfilter/nf_conntrack.h | 2 +- include/net/netlabel.h | 2 +- include/net/netns/conntrack.h | 2 +- include/net/sctp/structs.h | 2 +- include/pcmcia/ds.h | 2 +- include/rdma/ib_sa.h | 2 +- include/rdma/ib_verbs.h | 2 +- include/rxrpc/types.h | 2 +- include/scsi/scsi_device.h | 2 +- 75 files changed, 82 insertions(+), 75 deletions(-) (limited to 'include') diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index 2ce1be9f6291..f72403c4b51a 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -59,7 +59,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index e994197f84b7..7f84414c5f53 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -138,8 +138,6 @@ static inline int atomic_add_unless(atomic_t *v, int a, int u) return c != u; } -#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) { unsigned long flags; diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h index c8a5d68541d7..9ceb03b4f466 100644 --- a/include/asm-generic/local.h +++ b/include/asm-generic/local.h @@ -2,7 +2,7 @@ #define _ASM_GENERIC_LOCAL_H #include -#include +#include #include /* diff --git a/include/asm-generic/local64.h b/include/asm-generic/local64.h index 02ac760c1a8b..5980002b8b7b 100644 --- a/include/asm-generic/local64.h +++ b/include/asm-generic/local64.h @@ -55,7 +55,7 @@ typedef struct { #else /* BITS_PER_LONG != 64 */ -#include +#include /* Don't use typedef: don't want them to be mixed with atomic_t's. */ typedef struct { diff --git a/include/drm/ttm/ttm_lock.h b/include/drm/ttm/ttm_lock.h index 81ba0b0b891a..2e7f0c941b5d 100644 --- a/include/drm/ttm/ttm_lock.h +++ b/include/drm/ttm/ttm_lock.h @@ -51,7 +51,7 @@ #include "ttm/ttm_object.h" #include -#include +#include /** * struct ttm_lock diff --git a/include/linux/aio.h b/include/linux/aio.h index 7a8db4155281..2dcb72bff4b6 100644 --- a/include/linux/aio.h +++ b/include/linux/aio.h @@ -7,7 +7,7 @@ #include #include -#include +#include #define AIO_MAXSEGS 4 #define AIO_KIOGRP_NR_ATOMIC 8 diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h index 381f4cec8260..49a83ca900ba 100644 --- a/include/linux/atmdev.h +++ b/include/linux/atmdev.h @@ -220,7 +220,7 @@ struct atm_cirange { #include /* struct sk_buff */ #include #include -#include +#include #ifdef CONFIG_PROC_FS #include diff --git a/include/linux/atomic.h b/include/linux/atomic.h index bc6615d4132b..66fed6364122 100644 --- a/include/linux/atomic.h +++ b/include/linux/atomic.h @@ -2,6 +2,15 @@ #define _LINUX_ATOMIC_H #include +/** + * atomic_inc_not_zero - increment unless the number is zero + * @v: pointer of type atomic_t + * + * Atomically increments @v by 1, so long as @v is non-zero. + * Returns non-zero if @v was non-zero, and zero otherwise. + */ +#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) + /** * atomic_inc_not_zero_hint - increment if not null * @v: pointer of type atomic_t diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index a008982e7c08..3b2f9cb82986 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -16,7 +16,7 @@ #include #include #include -#include +#include struct page; struct device; diff --git a/include/linux/bit_spinlock.h b/include/linux/bit_spinlock.h index 564d997e2168..ac4d9f8b52e9 100644 --- a/include/linux/bit_spinlock.h +++ b/include/linux/bit_spinlock.h @@ -3,7 +3,7 @@ #include #include -#include +#include /* * bit-based spin_lock() diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index 503c8a6b3079..458f497738a4 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -12,7 +12,7 @@ #include #include #include -#include +#include #ifdef CONFIG_BLOCK diff --git a/include/linux/configfs.h b/include/linux/configfs.h index 645778ad899b..3081c58d696e 100644 --- a/include/linux/configfs.h +++ b/include/linux/configfs.h @@ -42,7 +42,7 @@ #include #include -#include +#include #define CONFIGFS_ITEM_NAME_LEN 20 diff --git a/include/linux/connector.h b/include/linux/connector.h index f696bccd48cb..0c69ad825b39 100644 --- a/include/linux/connector.h +++ b/include/linux/connector.h @@ -75,7 +75,7 @@ struct cn_msg { #ifdef __KERNEL__ -#include +#include #include #include diff --git a/include/linux/cred.h b/include/linux/cred.h index f240f2fa0197..48e82af1159b 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -16,7 +16,7 @@ #include #include #include -#include +#include struct user_struct; struct cred; diff --git a/include/linux/crypto.h b/include/linux/crypto.h index a6a7a1c83f54..e5e468e9133d 100644 --- a/include/linux/crypto.h +++ b/include/linux/crypto.h @@ -17,7 +17,7 @@ #ifndef _LINUX_CRYPTO_H #define _LINUX_CRYPTO_H -#include +#include #include #include #include diff --git a/include/linux/dcache.h b/include/linux/dcache.h index 3f22d8d6d8a3..d37d2a793099 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -1,7 +1,7 @@ #ifndef __LINUX_DCACHE_H #define __LINUX_DCACHE_H -#include +#include #include #include #include diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h index 2833452ea01c..5033fb88c107 100644 --- a/include/linux/debug_locks.h +++ b/include/linux/debug_locks.h @@ -2,7 +2,7 @@ #define __LINUX_DEBUG_LOCKING_H #include -#include +#include #include struct task_struct; diff --git a/include/linux/device.h b/include/linux/device.h index 160d4ddb2499..c20dfbfc49b4 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -22,7 +22,7 @@ #include #include #include -#include +#include #include struct device; diff --git a/include/linux/edac.h b/include/linux/edac.h index 36c66443bdfd..4a73257b47d0 100644 --- a/include/linux/edac.h +++ b/include/linux/edac.h @@ -12,7 +12,7 @@ #ifndef _LINUX_EDAC_H_ #define _LINUX_EDAC_H_ -#include +#include #include #define EDAC_OPSTATE_INVAL -1 diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h index a842db638380..3ff060ac7810 100644 --- a/include/linux/fault-inject.h +++ b/include/linux/fault-inject.h @@ -5,7 +5,7 @@ #include #include -#include +#include /* * For explanation of the elements of this struct, see diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h index df7e3cf82e97..82163c4b32c9 100644 --- a/include/linux/fdtable.h +++ b/include/linux/fdtable.h @@ -13,7 +13,7 @@ #include #include -#include +#include /* * The default fd array needs to be at least BITS_PER_LONG, diff --git a/include/linux/filter.h b/include/linux/filter.h index 9ee3f9fb0b4a..741956fa5bfd 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -9,7 +9,7 @@ #include #ifdef __KERNEL__ -#include +#include #endif /* diff --git a/include/linux/firewire.h b/include/linux/firewire.h index 5e6f42789afe..84ccf8e04fa6 100644 --- a/include/linux/firewire.h +++ b/include/linux/firewire.h @@ -14,7 +14,7 @@ #include #include -#include +#include #include #define fw_notify(s, args...) printk(KERN_NOTICE KBUILD_MODNAME ": " s, ## args) diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 69ad89b50489..91d0e0a34ef3 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -16,7 +16,7 @@ #include #include -#include +#include /* * IN_* from inotfy.h lines up EXACTLY with FS_*, this is so we can easily diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index f6efed0039ed..a103732b7588 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -17,7 +17,7 @@ #include #include -#include +#include #include #include #include diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h index 83e745f3ead7..66f23dc5e76a 100644 --- a/include/linux/jump_label.h +++ b/include/linux/jump_label.h @@ -54,7 +54,7 @@ extern void jump_label_apply_nops(struct module *mod); #else -#include +#include #define JUMP_LABEL_INIT {ATOMIC_INIT(0)} diff --git a/include/linux/kdb.h b/include/linux/kdb.h index aadff7cc2b84..529d9a0c75a5 100644 --- a/include/linux/kdb.h +++ b/include/linux/kdb.h @@ -16,7 +16,7 @@ #ifdef CONFIG_KGDB_KDB #include #include -#include +#include #define KDB_POLL_FUNC_MAX 5 extern int kdb_poll_idx; diff --git a/include/linux/key.h b/include/linux/key.h index 6ea4eebd3467..183a6af7715d 100644 --- a/include/linux/key.h +++ b/include/linux/key.h @@ -21,7 +21,7 @@ #include #include #include -#include +#include #ifdef __KERNEL__ diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h index 10ca03d0a250..fa391835508d 100644 --- a/include/linux/kgdb.h +++ b/include/linux/kgdb.h @@ -16,7 +16,7 @@ #include #include #include -#include +#include #ifdef CONFIG_HAVE_ARCH_KGDB #include #endif diff --git a/include/linux/kobject.h b/include/linux/kobject.h index 9229b64ee3aa..668729cc0fe9 100644 --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -25,7 +25,7 @@ #include #include #include -#include +#include #define UEVENT_HELPER_PATH_LEN 256 #define UEVENT_NUM_ENVP 32 /* number of env pointers */ diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 387329e02303..53ef894bfa05 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -37,7 +37,7 @@ #include #include -#include +#include #define MAX_MSIX_P_PORT 17 #define MAX_MSIX 64 diff --git a/include/linux/mman.h b/include/linux/mman.h index 9872d6ca58ae..8b74e9b1d0ad 100644 --- a/include/linux/mman.h +++ b/include/linux/mman.h @@ -14,7 +14,7 @@ #include #include -#include +#include extern int sysctl_overcommit_memory; extern int sysctl_overcommit_ratio; diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 0a2d3d620feb..be1ac8d7789b 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -16,7 +16,7 @@ #include #include #include -#include +#include #include /* Free memory management - zoned buddy allocator. */ diff --git a/include/linux/mount.h b/include/linux/mount.h index 604f122a2326..33fe53d78110 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -14,7 +14,7 @@ #include #include #include -#include +#include struct super_block; struct vfsmount; diff --git a/include/linux/mutex.h b/include/linux/mutex.h index 7f87217e9d1f..9121595a8ebf 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -15,7 +15,7 @@ #include #include -#include +#include /* * Simple, straightforward mutexes with strict semantics: diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index ea6f4aa479d4..2ed0b6cf11c5 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -34,7 +34,7 @@ #include #include #include -#include +#include #include #include diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 87694ca86914..08c444aa0411 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -7,7 +7,7 @@ #include #include -#include +#include struct nfs4_session; struct nfs_iostats; diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h index 7f5cfd3b37dd..49c8727eeb57 100644 --- a/include/linux/oprofile.h +++ b/include/linux/oprofile.h @@ -18,7 +18,7 @@ #include #include #include -#include +#include /* Each escaped entry is prefixed by ESCAPE_CODE * then one of the following codes, then the diff --git a/include/linux/pci.h b/include/linux/pci.h index 4e4203a96312..3a5626df37ce 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -49,7 +49,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 3f2711ccf910..245bafdafd5e 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -509,7 +509,7 @@ struct perf_guest_info_callbacks { #include #include #include -#include +#include #include #define PERF_MAX_STACK_DEPTH 255 diff --git a/include/linux/phy.h b/include/linux/phy.h index 7da5fa845959..ad5186354d92 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -26,7 +26,7 @@ #include #include -#include +#include #define PHY_BASIC_FEATURES (SUPPORTED_10baseT_Half | \ SUPPORTED_10baseT_Full | \ diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index e7576cf9e32d..650af6deaf8f 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -5,7 +5,7 @@ #include #include #include -#include +#include struct net; struct completion; diff --git a/include/linux/quota.h b/include/linux/quota.h index 313b7defc088..cb7855699037 100644 --- a/include/linux/quota.h +++ b/include/linux/quota.h @@ -180,7 +180,7 @@ enum { #include #include -#include +#include typedef __kernel_uid32_t qid_t; /* Type in which we store ids in memory */ typedef long long qsize_t; /* Type in which we store sizes */ diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h index 77950dfa0a9e..6a6741440cb7 100644 --- a/include/linux/rwsem.h +++ b/include/linux/rwsem.h @@ -15,7 +15,7 @@ #include #include -#include +#include struct rw_semaphore; diff --git a/include/linux/sem.h b/include/linux/sem.h index f2961afa2f66..1feb2de2ee57 100644 --- a/include/linux/sem.h +++ b/include/linux/sem.h @@ -77,7 +77,7 @@ struct seminfo { #define SEMUSZ 20 /* sizeof struct sem_undo */ #ifdef __KERNEL__ -#include +#include #include #include diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index a24218c9c84b..7b996ed86d5b 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -20,7 +20,7 @@ #include #include -#include +#include #include #include #include diff --git a/include/linux/sonet.h b/include/linux/sonet.h index 67ad11fcf88b..de8832dd272b 100644 --- a/include/linux/sonet.h +++ b/include/linux/sonet.h @@ -58,7 +58,7 @@ struct sonet_stats { #ifdef __KERNEL__ -#include +#include struct k_sonet_stats { #define __HANDLE_ITEM(i) atomic_t i diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h index 0b22d51258e6..7df6c17b0281 100644 --- a/include/linux/spinlock.h +++ b/include/linux/spinlock.h @@ -384,7 +384,7 @@ static inline void assert_spin_locked(spinlock_t *lock) * Pull the atomic_t declaration: * (asm-mips/atomic.h needs above definitions) */ -#include +#include /** * atomic_dec_and_lock - lock on reaching reference count zero * @atomic: the atomic counter diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h index 8521067ed4f7..febc4dbec2ca 100644 --- a/include/linux/sunrpc/auth.h +++ b/include/linux/sunrpc/auth.h @@ -15,7 +15,7 @@ #include #include -#include +#include #include /* size of the nodename buffer */ diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h index d1c79a906397..5efd8cef389e 100644 --- a/include/linux/sunrpc/cache.h +++ b/include/linux/sunrpc/cache.h @@ -15,7 +15,7 @@ #include #include -#include +#include #include /* diff --git a/include/linux/sunrpc/timer.h b/include/linux/sunrpc/timer.h index a67fd734c73b..697d6e69d61f 100644 --- a/include/linux/sunrpc/timer.h +++ b/include/linux/sunrpc/timer.h @@ -9,7 +9,7 @@ #ifndef _LINUX_SUNRPC_TIMER_H #define _LINUX_SUNRPC_TIMER_H -#include +#include struct rpc_rtt { unsigned long timeo; /* default timeout value */ diff --git a/include/linux/swap.h b/include/linux/swap.h index 91d5fcc83116..14d62490922e 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -9,7 +9,7 @@ #include #include -#include +#include #include struct notifier_block; diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index e2696d76a599..d7d2f2158142 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -17,7 +17,7 @@ #include #include #include -#include +#include struct kobject; struct module; diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index bcd942fa611c..65efb92da996 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -6,7 +6,7 @@ #include #include #include -#include +#include extern int sysctl_stat_interval; diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 2be2887c6958..0d556deb497b 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -10,7 +10,7 @@ #include #include #include -#include +#include struct workqueue_struct; diff --git a/include/net/ax25.h b/include/net/ax25.h index 206d22297ac3..94e09d361bb1 100644 --- a/include/net/ax25.h +++ b/include/net/ax25.h @@ -11,7 +11,7 @@ #include #include #include -#include +#include #define AX25_T1CLAMPLO 1 #define AX25_T1CLAMPHI (30 * HZ) diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h index abd443604c9f..3b938743514b 100644 --- a/include/net/cipso_ipv4.h +++ b/include/net/cipso_ipv4.h @@ -41,7 +41,7 @@ #include #include #include -#include +#include /* known doi values */ #define CIPSO_V4_DOI_UNKNOWN 0x00000000 diff --git a/include/net/flow.h b/include/net/flow.h index c6d5fe5ec1bf..78113daadd63 100644 --- a/include/net/flow.h +++ b/include/net/flow.h @@ -8,7 +8,7 @@ #define _NET_FLOW_H #include -#include +#include struct flowi_common { int flowic_oif; diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h index e9c2ed8af864..808fc5f76b03 100644 --- a/include/net/inet_hashtables.h +++ b/include/net/inet_hashtables.h @@ -33,7 +33,7 @@ #include #include -#include +#include #include /* This is for all connections with a full identity, no wildcards. diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h index 17404b5388a7..f1a770977c4f 100644 --- a/include/net/inet_timewait_sock.h +++ b/include/net/inet_timewait_sock.h @@ -28,7 +28,7 @@ #include #include -#include +#include struct inet_hashinfo; diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h index 4233e6f9841d..78c83e62218f 100644 --- a/include/net/inetpeer.h +++ b/include/net/inetpeer.h @@ -13,7 +13,7 @@ #include #include #include -#include +#include struct inetpeer_addr_base { union { diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index b1370c4015b6..1aaf915656f3 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -13,7 +13,7 @@ #include /* for ctl_path */ #include /* for struct list_head */ #include /* for struct rwlock_t */ -#include /* for struct atomic_t */ +#include /* for struct atomic_t */ #include #include diff --git a/include/net/lib80211.h b/include/net/lib80211.h index 848cce1bb7a5..b95bbb083ee8 100644 --- a/include/net/lib80211.h +++ b/include/net/lib80211.h @@ -26,7 +26,7 @@ #include #include #include -#include +#include #include #include #include diff --git a/include/net/llc.h b/include/net/llc.h index 5503b74ab170..226c846cab08 100644 --- a/include/net/llc.h +++ b/include/net/llc.h @@ -20,7 +20,7 @@ #include #include -#include +#include struct net_device; struct packet_type; diff --git a/include/net/neighbour.h b/include/net/neighbour.h index 4ba8521490ba..2720884287c3 100644 --- a/include/net/neighbour.h +++ b/include/net/neighbour.h @@ -16,7 +16,7 @@ * - Add neighbour cache statistics like rtstat */ -#include +#include #include #include #include diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h index 1ab1aec209ac..3bb6fa0eace0 100644 --- a/include/net/net_namespace.h +++ b/include/net/net_namespace.h @@ -4,7 +4,7 @@ #ifndef __NET_NET_NAMESPACE_H #define __NET_NET_NAMESPACE_H -#include +#include #include #include #include diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index 5d4f8e586e32..0b7f05e4a927 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -16,7 +16,7 @@ #include #include -#include +#include #include #include diff --git a/include/net/netlabel.h b/include/net/netlabel.h index 9db401a8b4d9..f21a16ee3705 100644 --- a/include/net/netlabel.h +++ b/include/net/netlabel.h @@ -38,7 +38,7 @@ #include #include #include -#include +#include struct cipso_v4_doi; diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h index 341eb089349e..0249399e51a7 100644 --- a/include/net/netns/conntrack.h +++ b/include/net/netns/conntrack.h @@ -3,7 +3,7 @@ #include #include -#include +#include struct ctl_table_header; struct nf_conntrack_ecache; diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 31d7ea2e1d2a..f7d9c3fc06fd 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -60,7 +60,7 @@ #include /* We get struct in6_addr */ #include #include /* We get MAXHOSTNAMELEN. */ -#include /* This gets us atomic counters. */ +#include /* This gets us atomic counters. */ #include /* We need sk_buff_head. */ #include /* We need tq_struct. */ #include /* We need sctp* header structs. */ diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h index 7b82080eb02c..3bbbd78e1439 100644 --- a/include/pcmcia/ds.h +++ b/include/pcmcia/ds.h @@ -26,7 +26,7 @@ #include #include #include -#include +#include /* diff --git a/include/rdma/ib_sa.h b/include/rdma/ib_sa.h index 1082afaed158..d44a56388a3e 100644 --- a/include/rdma/ib_sa.h +++ b/include/rdma/ib_sa.h @@ -38,7 +38,7 @@ #include #include -#include +#include #include #include diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index bf4306aea169..228be3e220d9 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -49,7 +49,7 @@ #include #include -#include +#include #include extern struct workqueue_struct *ib_wq; diff --git a/include/rxrpc/types.h b/include/rxrpc/types.h index 327a5fc4719c..30d48f6da228 100644 --- a/include/rxrpc/types.h +++ b/include/rxrpc/types.h @@ -17,7 +17,7 @@ #include #include #include -#include +#include typedef uint32_t rxrpc_seq_t; /* Rx message sequence number */ typedef uint32_t rxrpc_serial_t; /* Rx message serial number */ diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index dd82e02ddde3..d371c3ca90c3 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -7,7 +7,7 @@ #include #include #include -#include +#include struct request_queue; struct scsi_cmnd; -- cgit v1.2.3 From f24219b4e90cf70ec4a211b17fbabc725a0ddf3c Mon Sep 17 00:00:00 2001 From: Arun Sharma Date: Tue, 26 Jul 2011 16:09:07 -0700 Subject: atomic: move atomic_add_unless to generic code This is in preparation for more generic atomic primitives based on __atomic_add_unless. Signed-off-by: Arun Sharma Signed-off-by: Hans-Christian Egtvedt Reviewed-by: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/atomic.h | 4 ++-- include/linux/atomic.h | 14 ++++++++++++++ 2 files changed, 16 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 7f84414c5f53..bd18bfd78e9b 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -129,13 +129,13 @@ static inline void atomic_dec(atomic_t *v) #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) -static inline int atomic_add_unless(atomic_t *v, int a, int u) +static inline int __atomic_add_unless(atomic_t *v, int a, int u) { int c, old; c = atomic_read(v); while (c != u && (old = atomic_cmpxchg(v, c, c + a)) != c) c = old; - return c != u; + return c; } static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) diff --git a/include/linux/atomic.h b/include/linux/atomic.h index 66fed6364122..d5e167a6a398 100644 --- a/include/linux/atomic.h +++ b/include/linux/atomic.h @@ -2,6 +2,20 @@ #define _LINUX_ATOMIC_H #include +/** + * atomic_add_unless - add unless the number is already a given value + * @v: pointer of type atomic_t + * @a: the amount to add to v... + * @u: ...unless v is equal to u. + * + * Atomically adds @a to @v, so long as @v was not already @u. + * Returns non-zero if @v was not @u, and zero otherwise. + */ +static inline int atomic_add_unless(atomic_t *v, int a, int u) +{ + return __atomic_add_unless(v, a, u) != u; +} + /** * atomic_inc_not_zero - increment unless the number is zero * @v: pointer of type atomic_t -- cgit v1.2.3 From 7847777a45f9f8bfc8617dbf107bde1ecb59caee Mon Sep 17 00:00:00 2001 From: Arun Sharma Date: Tue, 26 Jul 2011 16:09:08 -0700 Subject: atomic: cleanup asm-generic atomic*.h inclusion After changing all consumers of atomics to include , we ran into some compile time errors due to this dependency chain: linux/atomic.h -> asm/atomic.h -> asm-generic/atomic-long.h where atomic-long.h could use funcs defined later in linux/atomic.h without a prototype. This patches moves the code that includes asm-generic/atomic*.h to linux/atomic.h. Archs that need need to select CONFIG_GENERIC_ATOMIC64 from now on (some of them used to include it unconditionally). Compile tested on i386 and x86_64 with allnoconfig. Signed-off-by: Arun Sharma Cc: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/atomic.h | 2 -- include/linux/atomic.h | 4 ++++ 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index bd18bfd78e9b..a8fad943d37b 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -154,7 +154,5 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) #define smp_mb__before_atomic_inc() barrier() #define smp_mb__after_atomic_inc() barrier() -#include - #endif /* __KERNEL__ */ #endif /* __ASM_GENERIC_ATOMIC_H */ diff --git a/include/linux/atomic.h b/include/linux/atomic.h index d5e167a6a398..42e7f6372ce2 100644 --- a/include/linux/atomic.h +++ b/include/linux/atomic.h @@ -96,4 +96,8 @@ static inline void atomic_or(int i, atomic_t *v) } #endif /* #ifndef CONFIG_ARCH_HAS_ATOMIC_OR */ +#include +#ifdef CONFIG_GENERIC_ATOMIC64 +#include +#endif #endif /* _LINUX_ATOMIC_H */ -- cgit v1.2.3 From acac43e2fc4b14ecf1ff229eaa8d1e011d063749 Mon Sep 17 00:00:00 2001 From: Arun Sharma Date: Tue, 26 Jul 2011 16:09:08 -0700 Subject: atomic: Update comments in atomic.h This clarifies the differences between and Signed-off-by: Arun Sharma Suggested-by: Mike Frysinger Cc: Eric Dumazet Cc: Ingo Molnar Cc: David Miller Acked-by: Mike Frysinger Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/atomic.h | 4 +++- include/linux/atomic.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index a8fad943d37b..90e23ea90d0d 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -1,5 +1,7 @@ /* - * Generic C implementation of atomic counter operations + * Generic C implementation of atomic counter operations. Usable on + * UP systems only. Do not include in machine independent code. + * * Originally implemented for MN10300. * * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. diff --git a/include/linux/atomic.h b/include/linux/atomic.h index 42e7f6372ce2..42b77b5446d2 100644 --- a/include/linux/atomic.h +++ b/include/linux/atomic.h @@ -1,3 +1,4 @@ +/* Atomic operations usable in machine independent code */ #ifndef _LINUX_ATOMIC_H #define _LINUX_ATOMIC_H #include -- cgit v1.2.3 From 3eea44ea753923c6af90be808426ecddc482de61 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 26 Jul 2011 16:09:09 -0700 Subject: asm-generic/atomic.h: simplify inc/dec test helpers We already declared inc/dec helpers, so we don't need to call the atomic_{add,sub}_return funcs directly. Signed-off-by: Mike Frysinger Cc: Arun Sharma Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/atomic.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 90e23ea90d0d..2a23da03365e 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -119,8 +119,8 @@ static inline void atomic_dec(atomic_t *v) #define atomic_inc_return(v) atomic_add_return(1, (v)) #define atomic_sub_and_test(i, v) (atomic_sub_return((i), (v)) == 0) -#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0) -#define atomic_inc_and_test(v) (atomic_add_return(1, (v)) == 0) +#define atomic_dec_and_test(v) (atomic_dec_return(v) == 0) +#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) #define atomic_xchg(ptr, v) (xchg(&(ptr)->counter, (v))) #define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new))) -- cgit v1.2.3 From f6081bd3f8152cdd3d857f55631bbb4b72182b82 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 26 Jul 2011 16:09:10 -0700 Subject: asm-generic/atomic.h: fix type used in atomic_clear_mask The atomic helpers are supposed to take an atomic_t pointer, not a random unsigned long pointer. So convert atomic_clear_mask over. While we're here, also add some nice documentation to the func. Signed-off-by: Mike Frysinger Cc: Arun Sharma Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/atomic.h | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 2a23da03365e..4e8ecf0693e9 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -140,13 +140,20 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) return c; } -static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) +/** + * atomic_clear_mask - Atomically clear bits in atomic variable + * @mask: Mask of the bits to be cleared + * @v: pointer of type atomic_t + * + * Atomically clears the bits set in @mask from @v + */ +static inline void atomic_clear_mask(unsigned long mask, atomic_t *v) { unsigned long flags; mask = ~mask; raw_local_irq_save(flags); /* Don't trace it in a irqsoff handler */ - *addr &= mask; + v->counter &= mask; raw_local_irq_restore(flags); } -- cgit v1.2.3 From 00b3c28bd753afb46fb26b2f9e21dd27dacd80d4 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 26 Jul 2011 16:09:10 -0700 Subject: asm-generic/atomic.h: add atomic_set_mask() helper Since arches are expected to implement this guy, add a common version for people the same way as atomic_clear_mask is handled. Signed-off-by: Mike Frysinger Cc: Arun Sharma Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/atomic.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include') diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 4e8ecf0693e9..4c56e0daae9f 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -157,6 +157,22 @@ static inline void atomic_clear_mask(unsigned long mask, atomic_t *v) raw_local_irq_restore(flags); } +/** + * atomic_set_mask - Atomically set bits in atomic variable + * @mask: Mask of the bits to be set + * @v: pointer of type atomic_t + * + * Atomically sets the bits set in @mask in @v + */ +static inline void atomic_set_mask(unsigned int mask, atomic_t *v) +{ + unsigned long flags; + + raw_local_irq_save(flags); /* Don't trace it in a irqsoff handler */ + v->counter |= mask; + raw_local_irq_restore(flags); +} + /* Assume that atomic operations are already serializing */ #define smp_mb__before_atomic_dec() barrier() #define smp_mb__after_atomic_dec() barrier() -- cgit v1.2.3 From 7505cb60c2d26301630b052852d484decf07aef1 Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Tue, 26 Jul 2011 16:09:11 -0700 Subject: asm-generic/atomic.h: allow SMP peeps to leverage this Only a few core funcs need to be implemented for SMP systems, so allow the arches to override them while getting the rest for free. At least, this is enough to allow the Blackfin SMP port to use things. Signed-off-by: Mike Frysinger Cc: Arun Sharma Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/atomic.h | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 4c56e0daae9f..e37963c1df4d 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -16,7 +16,11 @@ #define __ASM_GENERIC_ATOMIC_H #ifdef CONFIG_SMP -#error not SMP safe +/* Force people to define core atomics */ +# if !defined(atomic_add_return) || !defined(atomic_sub_return) || \ + !defined(atomic_clear_mask) || !defined(atomic_set_mask) +# error "SMP requires a little arch-specific magic" +# endif #endif /* @@ -34,7 +38,9 @@ * * Atomically reads the value of @v. */ +#ifndef atomic_read #define atomic_read(v) (*(volatile int *)&(v)->counter) +#endif /** * atomic_set - set atomic variable @@ -55,6 +61,7 @@ * * Atomically adds @i to @v and returns the result */ +#ifndef atomic_add_return static inline int atomic_add_return(int i, atomic_t *v) { unsigned long flags; @@ -68,6 +75,7 @@ static inline int atomic_add_return(int i, atomic_t *v) return temp; } +#endif /** * atomic_sub_return - subtract integer from atomic variable @@ -76,6 +84,7 @@ static inline int atomic_add_return(int i, atomic_t *v) * * Atomically subtracts @i from @v and returns the result */ +#ifndef atomic_sub_return static inline int atomic_sub_return(int i, atomic_t *v) { unsigned long flags; @@ -89,6 +98,7 @@ static inline int atomic_sub_return(int i, atomic_t *v) return temp; } +#endif static inline int atomic_add_negative(int i, atomic_t *v) { @@ -147,6 +157,7 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u) * * Atomically clears the bits set in @mask from @v */ +#ifndef atomic_clear_mask static inline void atomic_clear_mask(unsigned long mask, atomic_t *v) { unsigned long flags; @@ -156,6 +167,7 @@ static inline void atomic_clear_mask(unsigned long mask, atomic_t *v) v->counter &= mask; raw_local_irq_restore(flags); } +#endif /** * atomic_set_mask - Atomically set bits in atomic variable @@ -164,6 +176,7 @@ static inline void atomic_clear_mask(unsigned long mask, atomic_t *v) * * Atomically sets the bits set in @mask in @v */ +#ifndef atomic_set_mask static inline void atomic_set_mask(unsigned int mask, atomic_t *v) { unsigned long flags; @@ -172,6 +185,7 @@ static inline void atomic_set_mask(unsigned int mask, atomic_t *v) v->counter |= mask; raw_local_irq_restore(flags); } +#endif /* Assume that atomic operations are already serializing */ #define smp_mb__before_atomic_dec() barrier() -- cgit v1.2.3 From 6ca1a113791eb09dac8c48b2b264c4d72aab410f Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 4 Jul 2011 14:03:17 +0800 Subject: dt/net: add helper function of_get_phy_mode It adds the helper function of_get_phy_mode getting phy interface from device tree. Signed-off-by: Shawn Guo Cc: Grant Likely Acked-by: Grant Likely Acked-by: David Miller --- include/linux/of_net.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/of_net.h b/include/linux/of_net.h index e913081fb52a..f47464188710 100644 --- a/include/linux/of_net.h +++ b/include/linux/of_net.h @@ -9,6 +9,7 @@ #ifdef CONFIG_OF_NET #include +extern const int of_get_phy_mode(struct device_node *np); extern const void *of_get_mac_address(struct device_node *np); #endif -- cgit v1.2.3 From 4157ef1b8779b34581ee8b9dc8f7f95188008eca Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Tue, 5 Jul 2011 16:42:09 +0800 Subject: net: ibm_newemac: convert it to use of_get_phy_mode The patch extends 'enum phy_interface_t' and of_get_phy_mode a little bit with PHY_INTERFACE_MODE_NA and PHY_INTERFACE_MODE_SMII added, and then converts ibm_newemac net driver to use of_get_phy_mode getting phy mode from device tree. It also resolves the namespace conflict on phy_read/write between common mdiobus interface and ibm_newemac private one. Signed-off-by: Shawn Guo Cc: David S. Miller Cc: Grant Likely Acked-by: Grant Likely Acked-by: David Miller --- include/linux/phy.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/phy.h b/include/linux/phy.h index ad5186354d92..54fc4138955f 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -53,6 +53,7 @@ /* Interface Mode definitions */ typedef enum { + PHY_INTERFACE_MODE_NA, PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_SGMII, @@ -62,7 +63,8 @@ typedef enum { PHY_INTERFACE_MODE_RGMII_ID, PHY_INTERFACE_MODE_RGMII_RXID, PHY_INTERFACE_MODE_RGMII_TXID, - PHY_INTERFACE_MODE_RTBI + PHY_INTERFACE_MODE_RTBI, + PHY_INTERFACE_MODE_SMII, } phy_interface_t; -- cgit v1.2.3 From 17dd759c67f21e34f2156abcf415e1f60605a188 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 27 Jul 2011 06:16:28 -0700 Subject: gro: Only reset frag0 when skb can be pulled Currently skb_gro_header_slow unconditionally resets frag0 and frag0_len. However, when we can't pull on the skb this leaves the GRO fields in an inconsistent state. This patch fixes this by only resetting those fields after the pskb_may_pull test. Signed-off-by: Herbert Xu Signed-off-by: David S. Miller --- include/linux/netdevice.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 1d92acc0777b..661a07746e94 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -1649,9 +1649,12 @@ static inline int skb_gro_header_hard(struct sk_buff *skb, unsigned int hlen) static inline void *skb_gro_header_slow(struct sk_buff *skb, unsigned int hlen, unsigned int offset) { + if (!pskb_may_pull(skb, hlen)) + return NULL; + NAPI_GRO_CB(skb)->frag0 = NULL; NAPI_GRO_CB(skb)->frag0_len = 0; - return pskb_may_pull(skb, hlen) ? skb->data + offset : NULL; + return skb->data + offset; } static inline void *skb_gro_mac_header(struct sk_buff *skb) -- cgit v1.2.3 From 09570f914914d2beb0db29c5a9c7344934f2fa8c Mon Sep 17 00:00:00 2001 From: David Howells Date: Wed, 27 Jul 2011 21:47:03 +0300 Subject: proc: make struct proc_dir_entry::name a terminal array rather than a pointer Since __proc_create() appends the name it is given to the end of the PDE structure that it allocates, there isn't a need to store a name pointer. Instead we can just replace the name pointer with a terminal char array of _unspecified_ length. The compiler will simply append the string to statically defined variables of PDE type overlapping any hole at the end of the structure and, unlike specifying an explicitly _zero_ length array, won't give a warning if you try to statically initialise it with a string of more than zero length. Also, whilst we're at it: (1) Move namelen to end just prior to name and reduce it to a single byte (name shouldn't be longer than NAME_MAX). (2) Move pde_unload_lock two places further on so that if it's four bytes in size on a 64-bit machine, it won't cause an unused hole in the PDE struct. Signed-off-by: David Howells Signed-off-by: Alexey Dobriyan Signed-off-by: Linus Torvalds --- include/linux/proc_fs.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 650af6deaf8f..643b96c7a94f 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -50,8 +50,6 @@ typedef int (write_proc_t)(struct file *file, const char __user *buffer, struct proc_dir_entry { unsigned int low_ino; - unsigned int namelen; - const char *name; mode_t mode; nlink_t nlink; uid_t uid; @@ -73,9 +71,11 @@ struct proc_dir_entry { write_proc_t *write_proc; atomic_t count; /* use count */ int pde_users; /* number of callers into module in progress */ - spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */ struct completion *pde_unload_completion; struct list_head pde_openers; /* who did ->open, but not ->release */ + spinlock_t pde_unload_lock; /* proc_fops checks and pde_users bumps */ + u8 namelen; + char name[]; }; enum kcore_type { -- cgit v1.2.3 From 4522e825dbfc19537a08f65719dc3d69c46fe661 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Mon, 23 May 2011 09:17:19 -0300 Subject: [media] tea575x: convert to control framework Convert tea575x-tuner to use the new V4L2 control framework. Also add ext_init() callback that can be used by a card driver for additional initialization right before registering the video device (for SF16-FMR2). Also embed struct video_device to struct snd_tea575x to simplify the code. Signed-off-by: Ondrej Zary Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/sound/tea575x-tuner.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/sound/tea575x-tuner.h b/include/sound/tea575x-tuner.h index d2ea112fc20f..5aa8186e7820 100644 --- a/include/sound/tea575x-tuner.h +++ b/include/sound/tea575x-tuner.h @@ -23,8 +23,8 @@ */ #include +#include #include -#include #define TEA575X_FMIF 10700 @@ -42,7 +42,7 @@ struct snd_tea575x_ops { }; struct snd_tea575x { - struct video_device *vd; /* video device */ + struct video_device vd; /* video device */ bool tea5759; /* 5759 chip is present */ bool mute; /* Device is muted? */ bool stereo; /* receiving stereo */ @@ -54,6 +54,8 @@ struct snd_tea575x { void *private_data; u8 card[32]; u8 bus_info[32]; + struct v4l2_ctrl_handler ctrl_handler; + int (*ext_init)(struct snd_tea575x *tea); }; int snd_tea575x_init(struct snd_tea575x *tea); -- cgit v1.2.3 From 8d009a0c41475a482aca17d2a9fc8e6965f2fdf9 Mon Sep 17 00:00:00 2001 From: Davide Ferri Date: Tue, 23 Jun 2009 22:34:06 -0300 Subject: [media] dib0700: add initial code for PCTV 340e by Davide Ferri This is initial code written by Davide Ferri for the PCTV 340e, including a new xc4000 driver. I am checking in all the code unmodified, and making no assertions about its quality (other than confirming it compiles). [mchehab@redhat.com: rebased on the top of the current tree] Signed-off-by: Devin Heitmueller Signed-off-by: Davide Ferri Cc: Patrick Boettcher Signed-off-by: Mauro Carvalho Chehab --- include/media/tuner.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/media/tuner.h b/include/media/tuner.h index 963e33471835..89c290b69a5c 100644 --- a/include/media/tuner.h +++ b/include/media/tuner.h @@ -127,6 +127,8 @@ #define TUNER_PHILIPS_FMD1216MEX_MK3 78 #define TUNER_PHILIPS_FM1216MK5 79 #define TUNER_PHILIPS_FQ1216LME_MK3 80 /* Active loopthrough, no FM */ +#define TUNER_XC4000 81 /* Xceive Silicon Tuner */ + #define TUNER_PARTSNIC_PTI_5NF05 81 #define TUNER_PHILIPS_CU1216L 82 #define TUNER_NXP_TDA18271 83 -- cgit v1.2.3 From 34452432d125a846591523cf4999311c987c0bf4 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 8 Jun 2011 10:55:57 -0300 Subject: [media] DocBook/audio.xml: synchronize attribute changes Some attributes suffered some changes since DVBv1. Sync them with the current API header files. Signed-off-by: Mauro Carvalho Chehab --- include/linux/dvb/audio.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/dvb/audio.h b/include/linux/dvb/audio.h index fec66bd24f22..d47bccd604e4 100644 --- a/include/linux/dvb/audio.h +++ b/include/linux/dvb/audio.h @@ -67,7 +67,7 @@ typedef struct audio_status { typedef -struct audio_karaoke{ /* if Vocal1 or Vocal2 are non-zero, they get mixed */ +struct audio_karaoke { /* if Vocal1 or Vocal2 are non-zero, they get mixed */ int vocal1; /* into left and right t at 70% each */ int vocal2; /* if both, Vocal1 and Vocal2 are non-zero, Vocal1 gets*/ int melody; /* mixed into the left channel and */ -- cgit v1.2.3 From fa24198897ff0e8d34876be0e61f9b35d3c0d467 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 8 Jun 2011 11:25:26 -0300 Subject: [media] dvb/audio.h: Remove definition for AUDIO_GET_PTS While this ioctl is defined inside dvb/audio.h, it is not docummented at the API specs, nor implemented on any driver inside the Linux Kernel. So, it doesn't make sense to keep it here. As this is not used anywere, removing it is not a regression. So, there's no need to use the normal features-to-be-removed process. Signed-off-by: Mauro Carvalho Chehab --- include/linux/dvb/audio.h | 12 ------------ 1 file changed, 12 deletions(-) (limited to 'include') diff --git a/include/linux/dvb/audio.h b/include/linux/dvb/audio.h index d47bccd604e4..c1b35550899a 100644 --- a/include/linux/dvb/audio.h +++ b/include/linux/dvb/audio.h @@ -118,18 +118,6 @@ typedef __u16 audio_attributes_t; #define AUDIO_SET_ATTRIBUTES _IOW('o', 17, audio_attributes_t) #define AUDIO_SET_KARAOKE _IOW('o', 18, audio_karaoke_t) -/** - * AUDIO_GET_PTS - * - * Read the 33 bit presentation time stamp as defined - * in ITU T-REC-H.222.0 / ISO/IEC 13818-1. - * - * The PTS should belong to the currently played - * frame if possible, but may also be a value close to it - * like the PTS of the last decoded frame or the last PTS - * extracted by the PES parser. - */ -#define AUDIO_GET_PTS _IOR('o', 19, __u64) #define AUDIO_BILINGUAL_CHANNEL_SELECT _IO('o', 20) #endif /* _DVBAUDIO_H_ */ -- cgit v1.2.3 From 7a2b66b1bd26d717763985bad401410665fa0672 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 9 Jun 2011 16:26:32 -0300 Subject: Revert "[media] dvb/audio.h: Remove definition for AUDIO_GET_PTS" Based on those feedback: http://www.spinics.net/lists/linux-media/msg33704.html http://www.spinics.net/lists/linux-media/msg33700.html I'm reverting the removal of this unused ioctl, as it seems that some drivers under development may be using. So, I'll wait until the next merge window before removing those unused ioctls, to give a chance for developers to submit their pending work. This reverts commit db48923da6c528d461b5e764692239eb9c1b7a00. Cc: Andreas Oberritter Cc: Manu Abraham Signed-off-by: Mauro Carvalho Chehab --- include/linux/dvb/audio.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/dvb/audio.h b/include/linux/dvb/audio.h index c1b35550899a..d47bccd604e4 100644 --- a/include/linux/dvb/audio.h +++ b/include/linux/dvb/audio.h @@ -118,6 +118,18 @@ typedef __u16 audio_attributes_t; #define AUDIO_SET_ATTRIBUTES _IOW('o', 17, audio_attributes_t) #define AUDIO_SET_KARAOKE _IOW('o', 18, audio_karaoke_t) +/** + * AUDIO_GET_PTS + * + * Read the 33 bit presentation time stamp as defined + * in ITU T-REC-H.222.0 / ISO/IEC 13818-1. + * + * The PTS should belong to the currently played + * frame if possible, but may also be a value close to it + * like the PTS of the last decoded frame or the last PTS + * extracted by the PES parser. + */ +#define AUDIO_GET_PTS _IOR('o', 19, __u64) #define AUDIO_BILINGUAL_CHANNEL_SELECT _IO('o', 20) #endif /* _DVBAUDIO_H_ */ -- cgit v1.2.3 From 5588dc2b025fd8b2188142b8d59efe562bd57d80 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?David=20H=C3=A4rdeman?= Date: Thu, 28 Apr 2011 12:13:58 -0300 Subject: [media] rc-core: lirc use unsigned int MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Durations can never be negative, so it makes sense to consistently use unsigned int for LIRC transmission. Contrary to the initial impression, this shouldn't actually change the userspace API. Signed-off-by: David Härdeman Signed-off-by: Mauro Carvalho Chehab --- include/media/rc-core.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/media/rc-core.h b/include/media/rc-core.h index 60536c74c1ea..b1f19b77ecd4 100644 --- a/include/media/rc-core.h +++ b/include/media/rc-core.h @@ -117,7 +117,7 @@ struct rc_dev { int (*s_tx_carrier)(struct rc_dev *dev, u32 carrier); int (*s_tx_duty_cycle)(struct rc_dev *dev, u32 duty_cycle); int (*s_rx_carrier_range)(struct rc_dev *dev, u32 min, u32 max); - int (*tx_ir)(struct rc_dev *dev, int *txbuf, u32 n); + int (*tx_ir)(struct rc_dev *dev, unsigned *txbuf, unsigned n); void (*s_idle)(struct rc_dev *dev, bool enable); int (*s_learning_mode)(struct rc_dev *dev, int enable); int (*s_carrier_report) (struct rc_dev *dev, int enable); -- cgit v1.2.3 From f8fc729870ee82662ae6e3a713d59b2fbf3b04c6 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Sat, 11 Jun 2011 17:46:42 +0000 Subject: [media] marvell-cam: Move cafe-ccic into its own directory This driver will soon become a family of drivers, so let's give it its own place to live. This move requires putting ov7670.h into include/media, but there are no code changes. Cc: Daniel Drake Signed-off-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab --- include/media/ov7670.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 include/media/ov7670.h (limited to 'include') diff --git a/include/media/ov7670.h b/include/media/ov7670.h new file mode 100644 index 000000000000..b133bc123031 --- /dev/null +++ b/include/media/ov7670.h @@ -0,0 +1,20 @@ +/* + * A V4L2 driver for OmniVision OV7670 cameras. + * + * Copyright 2010 One Laptop Per Child + * + * This file may be distributed under the terms of the GNU General + * Public License, version 2. + */ + +#ifndef __OV7670_H +#define __OV7670_H + +struct ov7670_config { + int min_width; /* Filter out smaller sizes */ + int min_height; /* Filter out smaller sizes */ + int clock_speed; /* External clock speed (MHz) */ + bool use_smbus; /* Use smbus I/O instead of I2C */ +}; + +#endif -- cgit v1.2.3 From 67a8dbbc4e04cd256987b189352472a59aff73be Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Sat, 11 Jun 2011 14:46:49 -0300 Subject: [media] marvell-cam: Basic working MMP camera driver Now we have a camera working over the marvell cam controller core. It works like the cafe driver and has all the same limitations, contiguous DMA only being one of them. But it's a start. Signed-off-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab --- include/media/mmp-camera.h | 9 +++++++++ include/media/v4l2-chip-ident.h | 3 ++- 2 files changed, 11 insertions(+), 1 deletion(-) create mode 100644 include/media/mmp-camera.h (limited to 'include') diff --git a/include/media/mmp-camera.h b/include/media/mmp-camera.h new file mode 100644 index 000000000000..7611963a257f --- /dev/null +++ b/include/media/mmp-camera.h @@ -0,0 +1,9 @@ +/* + * Information for the Marvell Armada MMP camera + */ + +struct mmp_camera_platform_data { + struct platform_device *i2c_device; + int sensor_power_gpio; + int sensor_reset_gpio; +}; diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index b3edb67a8311..8717045e4aec 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -185,8 +185,9 @@ enum { /* module wm8775: just ident 8775 */ V4L2_IDENT_WM8775 = 8775, - /* module cafe_ccic, just ident 8801 */ + /* Marvell controllers starting at 8801 */ V4L2_IDENT_CAFE = 8801, + V4L2_IDENT_ARMADA610 = 8802, /* AKM AK8813/AK8814 */ V4L2_IDENT_AK8813 = 8813, -- cgit v1.2.3 From 9cd49719fda38613e9d7c712b11a54ea4ea005dc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Richard=20R=C3=83=C6=92=C3=86=E2=80=99=C3=83=E2=80=9A?= =?UTF-8?q?=C3=82=C2=B6jfors?= Date: Fri, 10 Jun 2011 11:48:48 -0300 Subject: [media] radio-timb: Simplified platform data MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch simplifies the platform data slightly, by removing unused elements. Signed-off-by: Richard Röjfors Signed-off-by: Mauro Carvalho Chehab --- include/media/timb_radio.h | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/media/timb_radio.h b/include/media/timb_radio.h index a59a84854dc1..a40a6a348d21 100644 --- a/include/media/timb_radio.h +++ b/include/media/timb_radio.h @@ -23,13 +23,8 @@ struct timb_radio_platform_data { int i2c_adapter; /* I2C adapter where the tuner and dsp are attached */ - struct { - struct i2c_board_info *info; - } tuner; - struct { - const char *module_name; - struct i2c_board_info *info; - } dsp; + struct i2c_board_info *tuner; + struct i2c_board_info *dsp; }; #endif -- cgit v1.2.3 From 6a529c1a4a87e0f5d143ad3bc0d37179332f210e Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Sat, 11 Jun 2011 10:28:59 -0300 Subject: [media] tea575x: allow multiple opens Change locking to allow tea575x-radio device to be opened multiple times. Signed-off-by: Ondrej Zary Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/sound/tea575x-tuner.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/sound/tea575x-tuner.h b/include/sound/tea575x-tuner.h index 5aa8186e7820..726e94742a5c 100644 --- a/include/sound/tea575x-tuner.h +++ b/include/sound/tea575x-tuner.h @@ -49,7 +49,7 @@ struct snd_tea575x { bool tuned; /* tuned to a station */ unsigned int val; /* hw value */ unsigned long freq; /* frequency */ - unsigned long in_use; /* set if the device is in use */ + struct mutex mutex; struct snd_tea575x_ops *ops; void *private_data; u8 card[32]; -- cgit v1.2.3 From a2c25b444e99f2369b29e507568c8703186174d0 Mon Sep 17 00:00:00 2001 From: Manjunath Hadli Date: Fri, 17 Jun 2011 04:01:31 -0300 Subject: [media] davinci vpbe: V4L2 display driver for DM644X SoC This is the display driver for Texas Instruments's DM644X family SoC. This patch contains the main implementation of the driver with the V4L2 interface. The driver implements the streaming model with support for both kernel allocated buffers and user pointers. It also implements all of the necessary IOCTLs necessary and supported by the video display device. Signed-off-by: Manjunath Hadli Acked-by: Muralidharan Karicheri Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/davinci/vpbe_display.h | 147 +++++++++++++++++++++++++++++++++++ include/media/davinci/vpbe_types.h | 91 ++++++++++++++++++++++ 2 files changed, 238 insertions(+) create mode 100644 include/media/davinci/vpbe_display.h create mode 100644 include/media/davinci/vpbe_types.h (limited to 'include') diff --git a/include/media/davinci/vpbe_display.h b/include/media/davinci/vpbe_display.h new file mode 100644 index 000000000000..dbf6b37682cd --- /dev/null +++ b/include/media/davinci/vpbe_display.h @@ -0,0 +1,147 @@ +/* + * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/ + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation version 2. + * + * This program is distributed WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ +#ifndef VPBE_DISPLAY_H +#define VPBE_DISPLAY_H + +/* Header files */ +#include +#include +#include +#include +#include +#include + +#define VPBE_DISPLAY_MAX_DEVICES 2 + +enum vpbe_display_device_id { + VPBE_DISPLAY_DEVICE_0, + VPBE_DISPLAY_DEVICE_1 +}; + +#define VPBE_DISPLAY_DRV_NAME "vpbe-display" + +#define VPBE_DISPLAY_MAJOR_RELEASE 1 +#define VPBE_DISPLAY_MINOR_RELEASE 0 +#define VPBE_DISPLAY_BUILD 1 +#define VPBE_DISPLAY_VERSION_CODE ((VPBE_DISPLAY_MAJOR_RELEASE << 16) | \ + (VPBE_DISPLAY_MINOR_RELEASE << 8) | \ + VPBE_DISPLAY_BUILD) + +#define VPBE_DISPLAY_VALID_FIELD(field) ((V4L2_FIELD_NONE == field) || \ + (V4L2_FIELD_ANY == field) || (V4L2_FIELD_INTERLACED == field)) + +/* Exp ratio numerator and denominator constants */ +#define VPBE_DISPLAY_H_EXP_RATIO_N 9 +#define VPBE_DISPLAY_H_EXP_RATIO_D 8 +#define VPBE_DISPLAY_V_EXP_RATIO_N 6 +#define VPBE_DISPLAY_V_EXP_RATIO_D 5 + +/* Zoom multiplication factor */ +#define VPBE_DISPLAY_ZOOM_4X 4 +#define VPBE_DISPLAY_ZOOM_2X 2 + +/* Structures */ +struct display_layer_info { + int enable; + /* Layer ID used by Display Manager */ + enum osd_layer id; + struct osd_layer_config config; + enum osd_zoom_factor h_zoom; + enum osd_zoom_factor v_zoom; + enum osd_h_exp_ratio h_exp; + enum osd_v_exp_ratio v_exp; +}; + +/* vpbe display object structure */ +struct vpbe_layer { + /* number of buffers in fbuffers */ + unsigned int numbuffers; + /* Pointer to the vpbe_display */ + struct vpbe_display *disp_dev; + /* Pointer pointing to current v4l2_buffer */ + struct videobuf_buffer *cur_frm; + /* Pointer pointing to next v4l2_buffer */ + struct videobuf_buffer *next_frm; + /* videobuf specific parameters + * Buffer queue used in video-buf + */ + struct videobuf_queue buffer_queue; + /* Queue of filled frames */ + struct list_head dma_queue; + /* Used in video-buf */ + spinlock_t irqlock; + /* V4l2 specific parameters */ + /* Identifies video device for this layer */ + struct video_device video_dev; + /* This field keeps track of type of buffer exchange mechanism user + * has selected + */ + enum v4l2_memory memory; + /* Used to keep track of state of the priority */ + struct v4l2_prio_state prio; + /* Used to store pixel format */ + struct v4l2_pix_format pix_fmt; + enum v4l2_field buf_field; + /* Video layer configuration params */ + struct display_layer_info layer_info; + /* vpbe specific parameters + * enable window for display + */ + unsigned char window_enable; + /* number of open instances of the layer */ + unsigned int usrs; + /* number of users performing IO */ + unsigned int io_usrs; + /* Indicates id of the field which is being displayed */ + unsigned int field_id; + /* Indicates whether streaming started */ + unsigned char started; + /* Identifies device object */ + enum vpbe_display_device_id device_id; + /* facilitation of ioctl ops lock by v4l2*/ + struct mutex opslock; + u8 layer_first_int; +}; + +/* vpbe device structure */ +struct vpbe_display { + /* layer specific parameters */ + /* lock for isr updates to buf layers*/ + spinlock_t dma_queue_lock; + /* C-Plane offset from start of y-plane */ + unsigned int cbcr_ofst; + struct vpbe_layer *dev[VPBE_DISPLAY_MAX_DEVICES]; + struct vpbe_device *vpbe_dev; + struct osd_state *osd_device; +}; + +/* File handle structure */ +struct vpbe_fh { + /* vpbe device structure */ + struct vpbe_display *disp_dev; + /* pointer to layer object for opened device */ + struct vpbe_layer *layer; + /* Indicates whether this file handle is doing IO */ + unsigned char io_allowed; + /* Used to keep track priority of this instance */ + enum v4l2_priority prio; +}; + +struct buf_config_params { + unsigned char min_numbuffers; + unsigned char numbuffers[VPBE_DISPLAY_MAX_DEVICES]; + unsigned int min_bufsize[VPBE_DISPLAY_MAX_DEVICES]; + unsigned int layer_bufsize[VPBE_DISPLAY_MAX_DEVICES]; +}; + +#endif /* VPBE_DISPLAY_H */ diff --git a/include/media/davinci/vpbe_types.h b/include/media/davinci/vpbe_types.h new file mode 100644 index 000000000000..727f55170e41 --- /dev/null +++ b/include/media/davinci/vpbe_types.h @@ -0,0 +1,91 @@ +/* + * Copyright (C) 2010 Texas Instruments Inc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation version 2. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef _VPBE_TYPES_H +#define _VPBE_TYPES_H + +enum vpbe_version { + VPBE_VERSION_1 = 1, + VPBE_VERSION_2, + VPBE_VERSION_3, +}; + +/* vpbe_timing_type - Timing types used in vpbe device */ +enum vpbe_enc_timings_type { + VPBE_ENC_STD = 0x1, + VPBE_ENC_DV_PRESET = 0x2, + VPBE_ENC_CUSTOM_TIMINGS = 0x4, + /* Used when set timings through FB device interface */ + VPBE_ENC_TIMINGS_INVALID = 0x8, +}; + +union vpbe_timings { + v4l2_std_id std_id; + unsigned int dv_preset; +}; + +/* + * struct vpbe_enc_mode_info + * @name: ptr to name string of the standard, "NTSC", "PAL" etc + * @std: standard or non-standard mode. 1 - standard, 0 - nonstandard + * @interlaced: 1 - interlaced, 0 - non interlaced/progressive + * @xres: x or horizontal resolution of the display + * @yres: y or vertical resolution of the display + * @fps: frame per second + * @left_margin: left margin of the display + * @right_margin: right margin of the display + * @upper_margin: upper margin of the display + * @lower_margin: lower margin of the display + * @hsync_len: h-sync length + * @vsync_len: v-sync length + * @flags: bit field: bit usage is documented below + * + * Description: + * Structure holding timing and resolution information of a standard. + * Used by vpbe_device to set required non-standard timing in the + * venc when lcd controller output is connected to a external encoder. + * A table of timings is maintained in vpbe device to set this in + * venc when external encoder is connected to lcd controller output. + * Encoder may provide a g_dv_timings() API to override these values + * as needed. + * + * Notes + * ------ + * if_type should be used only by encoder manager and encoder. + * flags usage + * b0 (LSB) - hsync polarity, 0 - negative, 1 - positive + * b1 - vsync polarity, 0 - negative, 1 - positive + * b2 - field id polarity, 0 - negative, 1 - positive + */ +struct vpbe_enc_mode_info { + unsigned char *name; + enum vpbe_enc_timings_type timings_type; + union vpbe_timings timings; + unsigned int interlaced; + unsigned int xres; + unsigned int yres; + struct v4l2_fract aspect; + struct v4l2_fract fps; + unsigned int left_margin; + unsigned int right_margin; + unsigned int upper_margin; + unsigned int lower_margin; + unsigned int hsync_len; + unsigned int vsync_len; + unsigned int flags; +}; + +#endif -- cgit v1.2.3 From 66715cdc3224a4e241c1a92856b9a4af3b70e06d Mon Sep 17 00:00:00 2001 From: Manjunath Hadli Date: Fri, 17 Jun 2011 04:01:32 -0300 Subject: [media] davinci vpbe: VPBE display driver This patch implements the core functionality of the display driver, mainly controlling the VENC and other encoders, and acting as the one point interface for the main V4L2 driver. This implements the core of each of the V4L2 IOCTLs. Signed-off-by: Manjunath Hadli Acked-by: Muralidharan Karicheri Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/davinci/vpbe.h | 184 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 184 insertions(+) create mode 100644 include/media/davinci/vpbe.h (limited to 'include') diff --git a/include/media/davinci/vpbe.h b/include/media/davinci/vpbe.h new file mode 100644 index 000000000000..8b11fb037980 --- /dev/null +++ b/include/media/davinci/vpbe.h @@ -0,0 +1,184 @@ +/* + * Copyright (C) 2010 Texas Instruments Inc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation version 2. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef _VPBE_H +#define _VPBE_H + +#include +#include + +#include +#include +#include +#include +#include +#include + +/* OSD configuration info */ +struct osd_config_info { + char module_name[32]; +}; + +struct vpbe_output { + struct v4l2_output output; + /* + * If output capabilities include dv_preset, list supported presets + * below + */ + char *subdev_name; + /* + * defualt_mode identifies the default timings set at the venc or + * external encoder. + */ + char *default_mode; + /* + * Fields below are used for supporting multiple modes. For example, + * LCD panel might support different modes and they are listed here. + * Similarly for supporting external encoders, lcd controller port + * requires a set of non-standard timing values to be listed here for + * each supported mode since venc is used in non-standard timing mode + * for interfacing with external encoder similar to configuring lcd + * panel timings + */ + unsigned int num_modes; + struct vpbe_enc_mode_info *modes; + /* + * Bus configuration goes here for external encoders. Some encoders + * may require multiple interface types for each of the output. For + * example, SD modes would use YCC8 where as HD mode would use YCC16. + * Not sure if this is needed on a per mode basis instead of per + * output basis. If per mode is needed, we may have to move this to + * mode_info structure + */ +}; + +/* encoder configuration info */ +struct encoder_config_info { + char module_name[32]; + /* Is this an i2c device ? */ + unsigned int is_i2c:1; + /* i2c subdevice board info */ + struct i2c_board_info board_info; +}; + +/* structure for defining vpbe display subsystem components */ +struct vpbe_config { + char module_name[32]; + /* i2c bus adapter no */ + int i2c_adapter_id; + struct osd_config_info osd; + struct encoder_config_info venc; + /* external encoder information goes here */ + int num_ext_encoders; + struct encoder_config_info *ext_encoders; + int num_outputs; + /* Order is venc outputs followed by LCD and then external encoders */ + struct vpbe_output *outputs; +}; + +struct vpbe_device; + +struct vpbe_device_ops { + /* crop cap for the display */ + int (*g_cropcap)(struct vpbe_device *vpbe_dev, + struct v4l2_cropcap *cropcap); + + /* Enumerate the outputs */ + int (*enum_outputs)(struct vpbe_device *vpbe_dev, + struct v4l2_output *output); + + /* Set output to the given index */ + int (*set_output)(struct vpbe_device *vpbe_dev, + int index); + + /* Get current output */ + unsigned int (*get_output)(struct vpbe_device *vpbe_dev); + + /* Set DV preset at current output */ + int (*s_dv_preset)(struct vpbe_device *vpbe_dev, + struct v4l2_dv_preset *dv_preset); + + /* Get DV presets supported at the output */ + int (*g_dv_preset)(struct vpbe_device *vpbe_dev, + struct v4l2_dv_preset *dv_preset); + + /* Enumerate the DV Presets supported at the output */ + int (*enum_dv_presets)(struct vpbe_device *vpbe_dev, + struct v4l2_dv_enum_preset *preset_info); + + /* Set std at the output */ + int (*s_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id); + + /* Get the current std at the output */ + int (*g_std)(struct vpbe_device *vpbe_dev, v4l2_std_id *std_id); + + /* initialize the device */ + int (*initialize)(struct device *dev, struct vpbe_device *vpbe_dev); + + /* De-initialize the device */ + void (*deinitialize)(struct device *dev, struct vpbe_device *vpbe_dev); + + /* Get the current mode info */ + int (*get_mode_info)(struct vpbe_device *vpbe_dev, + struct vpbe_enc_mode_info*); + + /* + * Set the current mode in the encoder. Alternate way of setting + * standard or DV preset or custom timings in the encoder + */ + int (*set_mode)(struct vpbe_device *vpbe_dev, + struct vpbe_enc_mode_info*); + /* Power management operations */ + int (*suspend)(struct vpbe_device *vpbe_dev); + int (*resume)(struct vpbe_device *vpbe_dev); +}; + +/* struct for vpbe device */ +struct vpbe_device { + /* V4l2 device */ + struct v4l2_device v4l2_dev; + /* vpbe dispay controller cfg */ + struct vpbe_config *cfg; + /* parent device */ + struct device *pdev; + /* external encoder v4l2 sub devices */ + struct v4l2_subdev **encoders; + /* current encoder index */ + int current_sd_index; + struct mutex lock; + /* device initialized */ + int initialized; + /* vpbe dac clock */ + struct clk *dac_clk; + /* osd_device pointer */ + struct osd_state *osd_device; + /* + * fields below are accessed by users of vpbe_device. Not the + * ones above + */ + + /* current output */ + int current_out_index; + /* lock used by caller to do atomic operation on vpbe device */ + /* current timings set in the controller */ + struct vpbe_enc_mode_info current_timings; + /* venc sub device */ + struct v4l2_subdev *venc; + /* device operations below */ + struct vpbe_device_ops ops; +}; + +#endif -- cgit v1.2.3 From ff0f23dd0edf4a5bd5fa3ee0eda71d8a1c8201d4 Mon Sep 17 00:00:00 2001 From: Manjunath Hadli Date: Fri, 17 Jun 2011 04:01:33 -0300 Subject: [media] davinci vpbe: OSD(On Screen Display) block This patch implements the functionality of the OSD block of the VPBE. The OSD in total supports 4 planes or Video sources - 2 mainly RGB and 2 Video. The patch implements general handling of all the planes, with specific emphasis on the Video plane capabilities as the Video planes are supported through the V4L2 driver. Signed-off-by: Manjunath Hadli Acked-by: Muralidharan Karicheri Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/davinci/vpbe_osd.h | 394 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 394 insertions(+) create mode 100644 include/media/davinci/vpbe_osd.h (limited to 'include') diff --git a/include/media/davinci/vpbe_osd.h b/include/media/davinci/vpbe_osd.h new file mode 100644 index 000000000000..d7e397a444e6 --- /dev/null +++ b/include/media/davinci/vpbe_osd.h @@ -0,0 +1,394 @@ +/* + * Copyright (C) 2007-2009 Texas Instruments Inc + * Copyright (C) 2007 MontaVista Software, Inc. + * + * Andy Lowe (alowe@mvista.com), MontaVista Software + * - Initial version + * Murali Karicheri (mkaricheri@gmail.com), Texas Instruments Ltd. + * - ported to sub device interface + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation version 2.. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#ifndef _OSD_H +#define _OSD_H + +#include + +#define VPBE_OSD_SUBDEV_NAME "vpbe-osd" + +/** + * enum osd_layer + * @WIN_OSD0: On-Screen Display Window 0 + * @WIN_VID0: Video Window 0 + * @WIN_OSD1: On-Screen Display Window 1 + * @WIN_VID1: Video Window 1 + * + * Description: + * An enumeration of the osd display layers. + */ +enum osd_layer { + WIN_OSD0, + WIN_VID0, + WIN_OSD1, + WIN_VID1, +}; + +/** + * enum osd_win_layer + * @OSDWIN_OSD0: On-Screen Display Window 0 + * @OSDWIN_OSD1: On-Screen Display Window 1 + * + * Description: + * An enumeration of the OSD Window layers. + */ +enum osd_win_layer { + OSDWIN_OSD0, + OSDWIN_OSD1, +}; + +/** + * enum osd_pix_format + * @PIXFMT_1BPP: 1-bit-per-pixel bitmap + * @PIXFMT_2BPP: 2-bits-per-pixel bitmap + * @PIXFMT_4BPP: 4-bits-per-pixel bitmap + * @PIXFMT_8BPP: 8-bits-per-pixel bitmap + * @PIXFMT_RGB565: 16-bits-per-pixel RGB565 + * @PIXFMT_YCbCrI: YUV 4:2:2 + * @PIXFMT_RGB888: 24-bits-per-pixel RGB888 + * @PIXFMT_YCrCbI: YUV 4:2:2 with chroma swap + * @PIXFMT_NV12: YUV 4:2:0 planar + * @PIXFMT_OSD_ATTR: OSD Attribute Window pixel format (4bpp) + * + * Description: + * An enumeration of the DaVinci pixel formats. + */ +enum osd_pix_format { + PIXFMT_1BPP = 0, + PIXFMT_2BPP, + PIXFMT_4BPP, + PIXFMT_8BPP, + PIXFMT_RGB565, + PIXFMT_YCbCrI, + PIXFMT_RGB888, + PIXFMT_YCrCbI, + PIXFMT_NV12, + PIXFMT_OSD_ATTR, +}; + +/** + * enum osd_h_exp_ratio + * @H_EXP_OFF: no expansion (1/1) + * @H_EXP_9_OVER_8: 9/8 expansion ratio + * @H_EXP_3_OVER_2: 3/2 expansion ratio + * + * Description: + * An enumeration of the available horizontal expansion ratios. + */ +enum osd_h_exp_ratio { + H_EXP_OFF, + H_EXP_9_OVER_8, + H_EXP_3_OVER_2, +}; + +/** + * enum osd_v_exp_ratio + * @V_EXP_OFF: no expansion (1/1) + * @V_EXP_6_OVER_5: 6/5 expansion ratio + * + * Description: + * An enumeration of the available vertical expansion ratios. + */ +enum osd_v_exp_ratio { + V_EXP_OFF, + V_EXP_6_OVER_5, +}; + +/** + * enum osd_zoom_factor + * @ZOOM_X1: no zoom (x1) + * @ZOOM_X2: x2 zoom + * @ZOOM_X4: x4 zoom + * + * Description: + * An enumeration of the available zoom factors. + */ +enum osd_zoom_factor { + ZOOM_X1, + ZOOM_X2, + ZOOM_X4, +}; + +/** + * enum osd_clut + * @ROM_CLUT: ROM CLUT + * @RAM_CLUT: RAM CLUT + * + * Description: + * An enumeration of the available Color Lookup Tables (CLUTs). + */ +enum osd_clut { + ROM_CLUT, + RAM_CLUT, +}; + +/** + * enum osd_rom_clut + * @ROM_CLUT0: Macintosh CLUT + * @ROM_CLUT1: CLUT from DM270 and prior devices + * + * Description: + * An enumeration of the ROM Color Lookup Table (CLUT) options. + */ +enum osd_rom_clut { + ROM_CLUT0, + ROM_CLUT1, +}; + +/** + * enum osd_blending_factor + * @OSD_0_VID_8: OSD pixels are fully transparent + * @OSD_1_VID_7: OSD pixels contribute 1/8, video pixels contribute 7/8 + * @OSD_2_VID_6: OSD pixels contribute 2/8, video pixels contribute 6/8 + * @OSD_3_VID_5: OSD pixels contribute 3/8, video pixels contribute 5/8 + * @OSD_4_VID_4: OSD pixels contribute 4/8, video pixels contribute 4/8 + * @OSD_5_VID_3: OSD pixels contribute 5/8, video pixels contribute 3/8 + * @OSD_6_VID_2: OSD pixels contribute 6/8, video pixels contribute 2/8 + * @OSD_8_VID_0: OSD pixels are fully opaque + * + * Description: + * An enumeration of the DaVinci pixel blending factor options. + */ +enum osd_blending_factor { + OSD_0_VID_8, + OSD_1_VID_7, + OSD_2_VID_6, + OSD_3_VID_5, + OSD_4_VID_4, + OSD_5_VID_3, + OSD_6_VID_2, + OSD_8_VID_0, +}; + +/** + * enum osd_blink_interval + * @BLINK_X1: blink interval is 1 vertical refresh cycle + * @BLINK_X2: blink interval is 2 vertical refresh cycles + * @BLINK_X3: blink interval is 3 vertical refresh cycles + * @BLINK_X4: blink interval is 4 vertical refresh cycles + * + * Description: + * An enumeration of the DaVinci pixel blinking interval options. + */ +enum osd_blink_interval { + BLINK_X1, + BLINK_X2, + BLINK_X3, + BLINK_X4, +}; + +/** + * enum osd_cursor_h_width + * @H_WIDTH_1: horizontal line width is 1 pixel + * @H_WIDTH_4: horizontal line width is 4 pixels + * @H_WIDTH_8: horizontal line width is 8 pixels + * @H_WIDTH_12: horizontal line width is 12 pixels + * @H_WIDTH_16: horizontal line width is 16 pixels + * @H_WIDTH_20: horizontal line width is 20 pixels + * @H_WIDTH_24: horizontal line width is 24 pixels + * @H_WIDTH_28: horizontal line width is 28 pixels + */ +enum osd_cursor_h_width { + H_WIDTH_1, + H_WIDTH_4, + H_WIDTH_8, + H_WIDTH_12, + H_WIDTH_16, + H_WIDTH_20, + H_WIDTH_24, + H_WIDTH_28, +}; + +/** + * enum davinci_cursor_v_width + * @V_WIDTH_1: vertical line width is 1 line + * @V_WIDTH_2: vertical line width is 2 lines + * @V_WIDTH_4: vertical line width is 4 lines + * @V_WIDTH_6: vertical line width is 6 lines + * @V_WIDTH_8: vertical line width is 8 lines + * @V_WIDTH_10: vertical line width is 10 lines + * @V_WIDTH_12: vertical line width is 12 lines + * @V_WIDTH_14: vertical line width is 14 lines + */ +enum osd_cursor_v_width { + V_WIDTH_1, + V_WIDTH_2, + V_WIDTH_4, + V_WIDTH_6, + V_WIDTH_8, + V_WIDTH_10, + V_WIDTH_12, + V_WIDTH_14, +}; + +/** + * struct osd_cursor_config + * @xsize: horizontal size in pixels + * @ysize: vertical size in lines + * @xpos: horizontal offset in pixels from the left edge of the display + * @ypos: vertical offset in lines from the top of the display + * @interlaced: Non-zero if the display is interlaced, or zero otherwise + * @h_width: horizontal line width + * @v_width: vertical line width + * @clut: the CLUT selector (ROM or RAM) for the cursor color + * @clut_index: an index into the CLUT for the cursor color + * + * Description: + * A structure describing the configuration parameters of the hardware + * rectangular cursor. + */ +struct osd_cursor_config { + unsigned xsize; + unsigned ysize; + unsigned xpos; + unsigned ypos; + int interlaced; + enum osd_cursor_h_width h_width; + enum osd_cursor_v_width v_width; + enum osd_clut clut; + unsigned char clut_index; +}; + +/** + * struct osd_layer_config + * @pixfmt: pixel format + * @line_length: offset in bytes between start of each line in memory + * @xsize: number of horizontal pixels displayed per line + * @ysize: number of lines displayed + * @xpos: horizontal offset in pixels from the left edge of the display + * @ypos: vertical offset in lines from the top of the display + * @interlaced: Non-zero if the display is interlaced, or zero otherwise + * + * Description: + * A structure describing the configuration parameters of an On-Screen Display + * (OSD) or video layer related to how the image is stored in memory. + * @line_length must be a multiple of the cache line size (32 bytes). + */ +struct osd_layer_config { + enum osd_pix_format pixfmt; + unsigned line_length; + unsigned xsize; + unsigned ysize; + unsigned xpos; + unsigned ypos; + int interlaced; +}; + +/* parameters that apply on a per-window (OSD or video) basis */ +struct osd_window_state { + int is_allocated; + int is_enabled; + unsigned long fb_base_phys; + enum osd_zoom_factor h_zoom; + enum osd_zoom_factor v_zoom; + struct osd_layer_config lconfig; +}; + +/* parameters that apply on a per-OSD-window basis */ +struct osd_osdwin_state { + enum osd_clut clut; + enum osd_blending_factor blend; + int colorkey_blending; + unsigned colorkey; + int rec601_attenuation; + /* index is pixel value */ + unsigned char palette_map[16]; +}; + +/* hardware rectangular cursor parameters */ +struct osd_cursor_state { + int is_enabled; + struct osd_cursor_config config; +}; + +struct osd_state; + +struct vpbe_osd_ops { + int (*initialize)(struct osd_state *sd); + int (*request_layer)(struct osd_state *sd, enum osd_layer layer); + void (*release_layer)(struct osd_state *sd, enum osd_layer layer); + int (*enable_layer)(struct osd_state *sd, enum osd_layer layer, + int otherwin); + void (*disable_layer)(struct osd_state *sd, enum osd_layer layer); + int (*set_layer_config)(struct osd_state *sd, enum osd_layer layer, + struct osd_layer_config *lconfig); + void (*get_layer_config)(struct osd_state *sd, enum osd_layer layer, + struct osd_layer_config *lconfig); + void (*start_layer)(struct osd_state *sd, enum osd_layer layer, + unsigned long fb_base_phys, + unsigned long cbcr_ofst); + void (*set_left_margin)(struct osd_state *sd, u32 val); + void (*set_top_margin)(struct osd_state *sd, u32 val); + void (*set_interpolation_filter)(struct osd_state *sd, int filter); + int (*set_vid_expansion)(struct osd_state *sd, + enum osd_h_exp_ratio h_exp, + enum osd_v_exp_ratio v_exp); + void (*get_vid_expansion)(struct osd_state *sd, + enum osd_h_exp_ratio *h_exp, + enum osd_v_exp_ratio *v_exp); + void (*set_zoom)(struct osd_state *sd, enum osd_layer layer, + enum osd_zoom_factor h_zoom, + enum osd_zoom_factor v_zoom); +}; + +struct osd_state { + enum vpbe_version vpbe_type; + spinlock_t lock; + struct device *dev; + dma_addr_t osd_base_phys; + unsigned long osd_base; + unsigned long osd_size; + /* 1-->the isr will toggle the VID0 ping-pong buffer */ + int pingpong; + int interpolation_filter; + int field_inversion; + enum osd_h_exp_ratio osd_h_exp; + enum osd_v_exp_ratio osd_v_exp; + enum osd_h_exp_ratio vid_h_exp; + enum osd_v_exp_ratio vid_v_exp; + enum osd_clut backg_clut; + unsigned backg_clut_index; + enum osd_rom_clut rom_clut; + int is_blinking; + /* attribute window blinking enabled */ + enum osd_blink_interval blink; + /* YCbCrI or YCrCbI */ + enum osd_pix_format yc_pixfmt; + /* columns are Y, Cb, Cr */ + unsigned char clut_ram[256][3]; + struct osd_cursor_state cursor; + /* OSD0, VID0, OSD1, VID1 */ + struct osd_window_state win[4]; + /* OSD0, OSD1 */ + struct osd_osdwin_state osdwin[2]; + /* OSD device Operations */ + struct vpbe_osd_ops ops; +}; + +struct osd_platform_data { + enum vpbe_version vpbe_type; + int field_inv_wa_enable; +}; + +#endif -- cgit v1.2.3 From 606b69e9b9442dc283cc2ed1ed73c39f3c5d0ca5 Mon Sep 17 00:00:00 2001 From: Manjunath Hadli Date: Fri, 17 Jun 2011 04:01:34 -0300 Subject: [media] davinci vpbe: VENC( Video Encoder) implementation This patch adds the VENC or the Video encoder, which is responsible for the blending of all source planes and timing generation for Video modes like NTSC, PAL and other digital outputs. the VENC implementation currently supports COMPOSITE and COMPONENT outputs and NTSC and PAL resolutions through the analog DACs. The venc block is implemented as a subdevice, allowing for additional external and internal encoders of other kind to plug-in. Signed-off-by: Manjunath Hadli Acked-by: Muralidharan Karicheri Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/davinci/vpbe_venc.h | 45 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 include/media/davinci/vpbe_venc.h (limited to 'include') diff --git a/include/media/davinci/vpbe_venc.h b/include/media/davinci/vpbe_venc.h new file mode 100644 index 000000000000..426c205831a2 --- /dev/null +++ b/include/media/davinci/vpbe_venc.h @@ -0,0 +1,45 @@ +/* + * Copyright (C) 2010 Texas Instruments Inc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation version 2. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef _VPBE_VENC_H +#define _VPBE_VENC_H + +#include +#include + +#define VPBE_VENC_SUBDEV_NAME "vpbe-venc" + +/* venc events */ +#define VENC_END_OF_FRAME BIT(0) +#define VENC_FIRST_FIELD BIT(1) +#define VENC_SECOND_FIELD BIT(2) + +struct venc_platform_data { + enum vpbe_version venc_type; + int (*setup_clock)(enum vpbe_enc_timings_type type, + unsigned int mode); + /* Number of LCD outputs supported */ + int num_lcd_outputs; +}; + +enum venc_ioctls { + VENC_GET_FLD = 1, +}; + +/* exported functions */ +struct v4l2_subdev *venc_sub_dev_init(struct v4l2_device *v4l2_dev, + const char *venc_name); +#endif -- cgit v1.2.3 From 2d28b686adc18567b388362e1f7b86658cfd81fc Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 12 Mar 2011 08:54:43 -0300 Subject: [media] v4l2-ioctl: add ctrl_handler to v4l2_fh This is required to implement control events and is also needed to allow for per-filehandle control handlers. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-fh.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-fh.h b/include/media/v4l2-fh.h index 0206aa55be24..d2471116ad68 100644 --- a/include/media/v4l2-fh.h +++ b/include/media/v4l2-fh.h @@ -30,11 +30,13 @@ struct video_device; struct v4l2_events; +struct v4l2_ctrl_handler; struct v4l2_fh { struct list_head list; struct video_device *vdev; struct v4l2_events *events; /* events, pending and subscribed */ + struct v4l2_ctrl_handler *ctrl_handler; enum v4l2_priority prio; }; -- cgit v1.2.3 From 72d877cac07c8d996918977c3162dd78b8097ca8 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 10 Jun 2011 05:44:36 -0300 Subject: [media] v4l2-ctrls: add v4l2_ctrl_auto_cluster to simplify autogain/gain scenarios It is a bit tricky to handle autogain/gain type scenerios correctly. Such controls need to be clustered and the V4L2_CTRL_FLAG_UPDATE should be set on the autofoo controls. In addition, the manual controls should be marked inactive when the automatic mode is on, and active when the manual mode is on. This also requires specialized volatile handling. The chances of drivers doing all these things correctly are pretty remote. So a new v4l2_ctrl_auto_cluster function was added that takes care of these issues. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-ctrls.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index 97d063837b61..56323e341e02 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -65,6 +65,15 @@ struct v4l2_ctrl_ops { * control's current value cannot be cached and needs to be * retrieved through the g_volatile_ctrl op. Drivers can set * this flag. + * @is_auto: If set, then this control selects whether the other cluster + * members are in 'automatic' mode or 'manual' mode. This is + * used for autogain/gain type clusters. Drivers should never + * set this flag directly. + * @manual_mode_value: If the is_auto flag is set, then this is the value + * of the auto control that determines if that control is in + * manual mode. So if the value of the auto control equals this + * value, then the whole cluster is in manual mode. Drivers should + * never set this flag directly. * @ops: The control ops. * @id: The control ID. * @name: The control name. @@ -105,6 +114,8 @@ struct v4l2_ctrl { unsigned int is_new:1; unsigned int is_private:1; unsigned int is_volatile:1; + unsigned int is_auto:1; + unsigned int manual_mode_value:5; const struct v4l2_ctrl_ops *ops; u32 id; @@ -363,6 +374,40 @@ int v4l2_ctrl_add_handler(struct v4l2_ctrl_handler *hdl, void v4l2_ctrl_cluster(unsigned ncontrols, struct v4l2_ctrl **controls); +/** v4l2_ctrl_auto_cluster() - Mark all controls in the cluster as belonging to + * that cluster and set it up for autofoo/foo-type handling. + * @ncontrols: The number of controls in this cluster. + * @controls: The cluster control array of size @ncontrols. The first control + * must be the 'auto' control (e.g. autogain, autoexposure, etc.) + * @manual_val: The value for the first control in the cluster that equals the + * manual setting. + * @set_volatile: If true, then all controls except the first auto control will + * have is_volatile set to true. If false, then is_volatile will not + * be touched. + * + * Use for control groups where one control selects some automatic feature and + * the other controls are only active whenever the automatic feature is turned + * off (manual mode). Typical examples: autogain vs gain, auto-whitebalance vs + * red and blue balance, etc. + * + * The behavior of such controls is as follows: + * + * When the autofoo control is set to automatic, then any manual controls + * are set to inactive and any reads will call g_volatile_ctrl (if the control + * was marked volatile). + * + * When the autofoo control is set to manual, then any manual controls will + * be marked active, and any reads will just return the current value without + * going through g_volatile_ctrl. + * + * In addition, this function will set the V4L2_CTRL_FLAG_UPDATE flag + * on the autofoo control and V4L2_CTRL_FLAG_INACTIVE on the foo control(s) + * if autofoo is in auto mode. + */ +void v4l2_ctrl_auto_cluster(unsigned ncontrols, struct v4l2_ctrl **controls, + u8 manual_val, bool set_volatile); + + /** v4l2_ctrl_find() - Find a control with the given ID. * @hdl: The control handler. * @id: The control ID to find. -- cgit v1.2.3 From ab892bac8438c5c2ff09a60d765d9b0c14941ba9 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 7 Jun 2011 06:47:18 -0300 Subject: [media] v4l2-ctrls: add v4l2_fh pointer to the set control functions When an application changes a control you want to generate an event. However, you want to avoid sending such an event back to the application (file handle) that caused the change. Add the filehandle to the various set control functions. The filehandle isn't used yet, but the control event patches will need this. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-ctrls.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index 56323e341e02..e720f11a56fd 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -28,6 +28,7 @@ /* forward references */ struct v4l2_ctrl_handler; struct v4l2_ctrl; +struct v4l2_fh; struct video_device; struct v4l2_subdev; @@ -485,15 +486,16 @@ s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl); */ int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val); - /* Helpers for ioctl_ops. If hdl == NULL then they will all return -EINVAL. */ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc); int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm); int v4l2_g_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *ctrl); -int v4l2_s_ctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_control *ctrl); +int v4l2_s_ctrl(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, + struct v4l2_control *ctrl); int v4l2_g_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *c); int v4l2_try_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *c); -int v4l2_s_ext_ctrls(struct v4l2_ctrl_handler *hdl, struct v4l2_ext_controls *c); +int v4l2_s_ext_ctrls(struct v4l2_fh *fh, struct v4l2_ctrl_handler *hdl, + struct v4l2_ext_controls *c); /* Helpers for subdevices. If the associated ctrl_handler == NULL then they will all return -EINVAL. */ -- cgit v1.2.3 From 6e239399e5807132f86f64af6c659411c6a3d1a5 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 7 Jun 2011 11:13:44 -0300 Subject: [media] v4l2-ctrls: add control events Whenever a control changes value or state an event is sent to anyone that subscribed to it. This functionality is useful for control panels but also for applications that need to wait for (usually status) controls to change value. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 29 +++++++++++++++++++++++++++-- include/media/v4l2-ctrls.h | 23 ++++++++++++++++++----- include/media/v4l2-event.h | 2 ++ 3 files changed, 47 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 8a4c309d2344..baafe2f2e02a 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1791,6 +1791,7 @@ struct v4l2_streamparm { #define V4L2_EVENT_ALL 0 #define V4L2_EVENT_VSYNC 1 #define V4L2_EVENT_EOS 2 +#define V4L2_EVENT_CTRL 3 #define V4L2_EVENT_PRIVATE_START 0x08000000 /* Payload for V4L2_EVENT_VSYNC */ @@ -1799,21 +1800,45 @@ struct v4l2_event_vsync { __u8 field; } __attribute__ ((packed)); +/* Payload for V4L2_EVENT_CTRL */ +#define V4L2_EVENT_CTRL_CH_VALUE (1 << 0) +#define V4L2_EVENT_CTRL_CH_FLAGS (1 << 1) + +struct v4l2_event_ctrl { + __u32 changes; + __u32 type; + union { + __s32 value; + __s64 value64; + }; + __u32 flags; + __s32 minimum; + __s32 maximum; + __s32 step; + __s32 default_value; +}; + struct v4l2_event { __u32 type; union { struct v4l2_event_vsync vsync; + struct v4l2_event_ctrl ctrl; __u8 data[64]; } u; __u32 pending; __u32 sequence; struct timespec timestamp; - __u32 reserved[9]; + __u32 id; + __u32 reserved[8]; }; +#define V4L2_EVENT_SUB_FL_SEND_INITIAL (1 << 0) + struct v4l2_event_subscription { __u32 type; - __u32 reserved[7]; + __u32 id; + __u32 flags; + __u32 reserved[5]; }; /* diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index e720f11a56fd..c45bf40e080d 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -28,9 +28,10 @@ /* forward references */ struct v4l2_ctrl_handler; struct v4l2_ctrl; -struct v4l2_fh; struct video_device; struct v4l2_subdev; +struct v4l2_event_subscription; +struct v4l2_fh; /** struct v4l2_ctrl_ops - The control operations that the driver has to provide. * @g_volatile_ctrl: Get a new value for this control. Generally only relevant @@ -107,6 +108,7 @@ struct v4l2_ctrl_ops { struct v4l2_ctrl { /* Administrative fields */ struct list_head node; + struct list_head fhs; struct v4l2_ctrl_handler *handler; struct v4l2_ctrl **cluster; unsigned ncontrols; @@ -180,6 +182,11 @@ struct v4l2_ctrl_handler { int error; }; +struct v4l2_ctrl_fh { + struct list_head node; + struct v4l2_fh *fh; +}; + /** struct v4l2_ctrl_config - Control configuration structure. * @ops: The control ops. * @id: The control ID. @@ -425,9 +432,9 @@ struct v4l2_ctrl *v4l2_ctrl_find(struct v4l2_ctrl_handler *hdl, u32 id); * This sets or clears the V4L2_CTRL_FLAG_INACTIVE flag atomically. * Does nothing if @ctrl == NULL. * This will usually be called from within the s_ctrl op. + * The V4L2_EVENT_CTRL event will be generated afterwards. * - * This function can be called regardless of whether the control handler - * is locked or not. + * This function assumes that the control handler is locked. */ void v4l2_ctrl_activate(struct v4l2_ctrl *ctrl, bool active); @@ -437,11 +444,12 @@ void v4l2_ctrl_activate(struct v4l2_ctrl *ctrl, bool active); * * This sets or clears the V4L2_CTRL_FLAG_GRABBED flag atomically. * Does nothing if @ctrl == NULL. + * The V4L2_EVENT_CTRL event will be generated afterwards. * This will usually be called when starting or stopping streaming in the * driver. * - * This function can be called regardless of whether the control handler - * is locked or not. + * This function assumes that the control handler is not locked and will + * take the lock itself. */ void v4l2_ctrl_grab(struct v4l2_ctrl *ctrl, bool grabbed); @@ -486,6 +494,11 @@ s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl); */ int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val); +void v4l2_ctrl_add_fh(struct v4l2_ctrl_handler *hdl, + struct v4l2_ctrl_fh *ctrl_fh, + struct v4l2_event_subscription *sub); +void v4l2_ctrl_del_fh(struct v4l2_ctrl *ctrl, struct v4l2_fh *fh); + /* Helpers for ioctl_ops. If hdl == NULL then they will all return -EINVAL. */ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc); int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm); diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h index 3b86177c8cd2..45e9c1e05513 100644 --- a/include/media/v4l2-event.h +++ b/include/media/v4l2-event.h @@ -40,6 +40,7 @@ struct v4l2_kevent { struct v4l2_subscribed_event { struct list_head list; u32 type; + u32 id; }; struct v4l2_events { @@ -58,6 +59,7 @@ void v4l2_event_free(struct v4l2_fh *fh); int v4l2_event_dequeue(struct v4l2_fh *fh, struct v4l2_event *event, int nonblocking); void v4l2_event_queue(struct video_device *vdev, const struct v4l2_event *ev); +void v4l2_event_queue_fh(struct v4l2_fh *fh, const struct v4l2_event *ev); int v4l2_event_pending(struct v4l2_fh *fh); int v4l2_event_subscribe(struct v4l2_fh *fh, struct v4l2_event_subscription *sub); -- cgit v1.2.3 From ce7275747bd548e0da7425ba0b7edb6f2c7657a2 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 10 Jun 2011 05:56:39 -0300 Subject: [media] v4l2-ctrls: simplify event subscription Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-ctrls.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index c45bf40e080d..de68a59c7d84 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -169,6 +169,7 @@ struct v4l2_ctrl_ref { * control is needed multiple times, so this is a simple * optimization. * @buckets: Buckets for the hashing. Allows for quick control lookup. + * @nr_of_refs: Total number of control references in the list. * @nr_of_buckets: Total number of buckets in the array. * @error: The error code of the first failed control addition. */ @@ -178,6 +179,7 @@ struct v4l2_ctrl_handler { struct list_head ctrl_refs; struct v4l2_ctrl_ref *cached; struct v4l2_ctrl_ref **buckets; + u16 nr_of_refs; u16 nr_of_buckets; int error; }; @@ -494,11 +496,29 @@ s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl); */ int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val); +/* Internal helper functions that deal with control events. */ void v4l2_ctrl_add_fh(struct v4l2_ctrl_handler *hdl, struct v4l2_ctrl_fh *ctrl_fh, struct v4l2_event_subscription *sub); void v4l2_ctrl_del_fh(struct v4l2_ctrl *ctrl, struct v4l2_fh *fh); +/** v4l2_ctrl_subscribe_fh() - Helper function that subscribes a control event. + * @fh: The file handler that subscribed the control event. + * @sub: The event to subscribe (type must be V4L2_EVENT_CTRL). + * @n: How many events should be allocated? (Passed to v4l2_event_alloc). + * Recommended to set to twice the number of controls plus whatever + * is needed for other events. This function will set n to + * max(n, 2 * fh->ctrl_handler->nr_of_refs). + * + * A helper function that initializes the fh for events, allocates the + * list of events and subscribes the control event. + * + * Typically called in the handler of VIDIOC_SUBSCRIBE_EVENT in the + * V4L2_EVENT_CTRL case. + */ +int v4l2_ctrl_subscribe_fh(struct v4l2_fh *fh, + struct v4l2_event_subscription *sub, unsigned n); + /* Helpers for ioctl_ops. If hdl == NULL then they will all return -EINVAL. */ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc); int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm); -- cgit v1.2.3 From 82a7c049449ec5a2194249da341ec8bde14e968b Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 28 Jun 2011 10:43:13 -0300 Subject: [media] v4l2-ctrls: make manual_mode_value 8 bits and check against control range Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-ctrls.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index de68a59c7d84..8f08c6edf509 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -118,7 +118,7 @@ struct v4l2_ctrl { unsigned int is_private:1; unsigned int is_volatile:1; unsigned int is_auto:1; - unsigned int manual_mode_value:5; + unsigned int manual_mode_value:8; const struct v4l2_ctrl_ops *ops; u32 id; -- cgit v1.2.3 From b7ccdba02aaa5100eec85d41c56c37c78d3ab407 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Sat, 4 Jun 2011 17:24:22 -0300 Subject: [media] V4L: soc-camera: MIPI flags are not sensor flags SOCAM_MIPI_[1234]LANE flags are not board-specific sensor flags, they are bus configuration flags. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index 238bd334fd83..e34b5e615f2a 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -109,12 +109,6 @@ struct soc_camera_host_ops { #define SOCAM_SENSOR_INVERT_HSYNC (1 << 2) #define SOCAM_SENSOR_INVERT_VSYNC (1 << 3) #define SOCAM_SENSOR_INVERT_DATA (1 << 4) -#define SOCAM_MIPI_1LANE (1 << 5) -#define SOCAM_MIPI_2LANE (1 << 6) -#define SOCAM_MIPI_3LANE (1 << 7) -#define SOCAM_MIPI_4LANE (1 << 8) -#define SOCAM_MIPI (SOCAM_MIPI_1LANE | SOCAM_MIPI_2LANE | \ - SOCAM_MIPI_3LANE | SOCAM_MIPI_4LANE) struct i2c_board_info; struct regulator_bulk_data; @@ -270,6 +264,12 @@ static inline struct v4l2_queryctrl const *soc_camera_find_qctrl( #define SOCAM_PCLK_SAMPLE_FALLING (1 << 13) #define SOCAM_DATA_ACTIVE_HIGH (1 << 14) #define SOCAM_DATA_ACTIVE_LOW (1 << 15) +#define SOCAM_MIPI_1LANE (1 << 16) +#define SOCAM_MIPI_2LANE (1 << 17) +#define SOCAM_MIPI_3LANE (1 << 18) +#define SOCAM_MIPI_4LANE (1 << 19) +#define SOCAM_MIPI (SOCAM_MIPI_1LANE | SOCAM_MIPI_2LANE | \ + SOCAM_MIPI_3LANE | SOCAM_MIPI_4LANE) #define SOCAM_DATAWIDTH_MASK (SOCAM_DATAWIDTH_4 | SOCAM_DATAWIDTH_8 | \ SOCAM_DATAWIDTH_9 | SOCAM_DATAWIDTH_10 | \ -- cgit v1.2.3 From 8318a64b892a4de629c3365b3acd8f7d2d7e6100 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Tue, 7 Jun 2011 06:24:32 -0300 Subject: [media] V4L: soc-camera: remove several now unused soc-camera client operations This patch removes .enum_input(), .suspend() and .resume() soc-camera client operations. Functionality, provided by .enum_input(), if needed, can be implemented using the v4l2-subdev API. As for .suspend() and .resume(), the only client driver, implementing these methods has been mt9m111, and the only host driver, using them has been pxa-camera. Now that both those drivers have been converted to the standard subdev .s_power() operation, .suspend() and .resume() can be removed. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index e34b5e615f2a..21dd8a41f4c1 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -201,11 +201,8 @@ struct soc_camera_format_xlate { }; struct soc_camera_ops { - int (*suspend)(struct soc_camera_device *, pm_message_t state); - int (*resume)(struct soc_camera_device *); unsigned long (*query_bus_param)(struct soc_camera_device *); int (*set_bus_param)(struct soc_camera_device *, unsigned long); - int (*enum_input)(struct soc_camera_device *, struct v4l2_input *); const struct v4l2_queryctrl *controls; int num_controls; }; -- cgit v1.2.3 From 195ebc43bf76df2232d8c55ae284725e73d7a80e Mon Sep 17 00:00:00 2001 From: Josh Wu Date: Tue, 7 Jun 2011 22:40:19 -0300 Subject: [media] V4L: at91: add Atmel Image Sensor Interface (ISI) support This patch is to enable Atmel Image Sensor Interface (ISI) driver support. Signed-off-by: Josh Wu Acked-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/atmel-isi.h | 119 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 include/media/atmel-isi.h (limited to 'include') diff --git a/include/media/atmel-isi.h b/include/media/atmel-isi.h new file mode 100644 index 000000000000..26cece595121 --- /dev/null +++ b/include/media/atmel-isi.h @@ -0,0 +1,119 @@ +/* + * Register definitions for the Atmel Image Sensor Interface. + * + * Copyright (C) 2011 Atmel Corporation + * Josh Wu, + * + * Based on previous work by Lars Haring, + * and Sedji Gaouaou + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ATMEL_ISI_H__ +#define __ATMEL_ISI_H__ + +#include + +/* ISI_V2 register offsets */ +#define ISI_CFG1 0x0000 +#define ISI_CFG2 0x0004 +#define ISI_PSIZE 0x0008 +#define ISI_PDECF 0x000c +#define ISI_Y2R_SET0 0x0010 +#define ISI_Y2R_SET1 0x0014 +#define ISI_R2Y_SET0 0x0018 +#define ISI_R2Y_SET1 0x001C +#define ISI_R2Y_SET2 0x0020 +#define ISI_CTRL 0x0024 +#define ISI_STATUS 0x0028 +#define ISI_INTEN 0x002C +#define ISI_INTDIS 0x0030 +#define ISI_INTMASK 0x0034 +#define ISI_DMA_CHER 0x0038 +#define ISI_DMA_CHDR 0x003C +#define ISI_DMA_CHSR 0x0040 +#define ISI_DMA_P_ADDR 0x0044 +#define ISI_DMA_P_CTRL 0x0048 +#define ISI_DMA_P_DSCR 0x004C +#define ISI_DMA_C_ADDR 0x0050 +#define ISI_DMA_C_CTRL 0x0054 +#define ISI_DMA_C_DSCR 0x0058 + +/* Bitfields in CFG1 */ +#define ISI_CFG1_HSYNC_POL_ACTIVE_LOW (1 << 2) +#define ISI_CFG1_VSYNC_POL_ACTIVE_LOW (1 << 3) +#define ISI_CFG1_PIXCLK_POL_ACTIVE_FALLING (1 << 4) +#define ISI_CFG1_EMB_SYNC (1 << 6) +#define ISI_CFG1_CRC_SYNC (1 << 7) +/* Constants for FRATE(ISI_V2) */ +#define ISI_CFG1_FRATE_CAPTURE_ALL (0 << 8) +#define ISI_CFG1_FRATE_DIV_2 (1 << 8) +#define ISI_CFG1_FRATE_DIV_3 (2 << 8) +#define ISI_CFG1_FRATE_DIV_4 (3 << 8) +#define ISI_CFG1_FRATE_DIV_5 (4 << 8) +#define ISI_CFG1_FRATE_DIV_6 (5 << 8) +#define ISI_CFG1_FRATE_DIV_7 (6 << 8) +#define ISI_CFG1_FRATE_DIV_8 (7 << 8) +#define ISI_CFG1_DISCR (1 << 11) +#define ISI_CFG1_FULL_MODE (1 << 12) + +/* Bitfields in CFG2 */ +#define ISI_CFG2_GRAYSCALE (1 << 13) +/* Constants for YCC_SWAP(ISI_V2) */ +#define ISI_CFG2_YCC_SWAP_DEFAULT (0 << 28) +#define ISI_CFG2_YCC_SWAP_MODE_1 (1 << 28) +#define ISI_CFG2_YCC_SWAP_MODE_2 (2 << 28) +#define ISI_CFG2_YCC_SWAP_MODE_3 (3 << 28) +#define ISI_CFG2_IM_VSIZE_OFFSET 0 +#define ISI_CFG2_IM_HSIZE_OFFSET 16 +#define ISI_CFG2_IM_VSIZE_MASK (0x7FF << ISI_CFG2_IM_VSIZE_OFFSET) +#define ISI_CFG2_IM_HSIZE_MASK (0x7FF << ISI_CFG2_IM_HSIZE_OFFSET) + +/* Bitfields in CTRL */ +/* Also using in SR(ISI_V2) */ +#define ISI_CTRL_EN (1 << 0) +#define ISI_CTRL_CDC (1 << 8) +/* Also using in SR/IER/IDR/IMR(ISI_V2) */ +#define ISI_CTRL_DIS (1 << 1) +#define ISI_CTRL_SRST (1 << 2) + +/* Bitfields in SR */ +#define ISI_SR_SIP (1 << 19) +/* Also using in SR/IER/IDR/IMR */ +#define ISI_SR_VSYNC (1 << 10) +#define ISI_SR_PXFR_DONE (1 << 16) +#define ISI_SR_CXFR_DONE (1 << 17) +#define ISI_SR_P_OVR (1 << 24) +#define ISI_SR_C_OVR (1 << 25) +#define ISI_SR_CRC_ERR (1 << 26) +#define ISI_SR_FR_OVR (1 << 27) + +/* Bitfields in DMA_C_CTRL & in DMA_P_CTRL */ +#define ISI_DMA_CTRL_FETCH (1 << 0) +#define ISI_DMA_CTRL_WB (1 << 1) +#define ISI_DMA_CTRL_IEN (1 << 2) +#define ISI_DMA_CTRL_DONE (1 << 3) + +/* Bitfields in DMA_CHSR/CHER/CHDR */ +#define ISI_DMA_CHSR_P_CH (1 << 0) +#define ISI_DMA_CHSR_C_CH (1 << 1) + +/* Definition for isi_platform_data */ +#define ISI_DATAWIDTH_8 0x01 +#define ISI_DATAWIDTH_10 0x02 + +struct isi_platform_data { + u8 has_emb_sync; + u8 emb_crc_sync; + u8 hsync_act_low; + u8 vsync_act_low; + u8 pclk_act_falling; + u8 isi_full_mode; + u32 data_width_flags; + /* Using for ISI_CFG1 */ + u32 frate; +}; + +#endif /* __ATMEL_ISI_H__ */ -- cgit v1.2.3 From 523f46d6aba9dcb0a2d0fc474ca884e93a7cf198 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 13 Jun 2011 17:44:42 -0300 Subject: [media] v4l2-events/fh: merge v4l2_events into v4l2_fh Drivers that supported events used to be rare, but now that controls can also raise events this will become much more common since almost all drivers have controls. This means that keeping struct v4l2_events as a separate struct make no more sense. Merging it into struct v4l2_fh simplifies things substantially as it is now an integral part of the filehandle struct. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-event.h | 11 ----------- include/media/v4l2-fh.h | 13 ++++++++++--- 2 files changed, 10 insertions(+), 14 deletions(-) (limited to 'include') diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h index 45e9c1e05513..042b893035de 100644 --- a/include/media/v4l2-event.h +++ b/include/media/v4l2-event.h @@ -43,17 +43,6 @@ struct v4l2_subscribed_event { u32 id; }; -struct v4l2_events { - wait_queue_head_t wait; - struct list_head subscribed; /* Subscribed events */ - struct list_head free; /* Events ready for use */ - struct list_head available; /* Dequeueable event */ - unsigned int navailable; - unsigned int nallocated; /* Number of allocated events */ - u32 sequence; -}; - -int v4l2_event_init(struct v4l2_fh *fh); int v4l2_event_alloc(struct v4l2_fh *fh, unsigned int n); void v4l2_event_free(struct v4l2_fh *fh); int v4l2_event_dequeue(struct v4l2_fh *fh, struct v4l2_event *event, diff --git a/include/media/v4l2-fh.h b/include/media/v4l2-fh.h index d2471116ad68..bfc0457ca6ef 100644 --- a/include/media/v4l2-fh.h +++ b/include/media/v4l2-fh.h @@ -29,15 +29,22 @@ #include struct video_device; -struct v4l2_events; struct v4l2_ctrl_handler; struct v4l2_fh { struct list_head list; struct video_device *vdev; - struct v4l2_events *events; /* events, pending and subscribed */ struct v4l2_ctrl_handler *ctrl_handler; enum v4l2_priority prio; + + /* Events */ + wait_queue_head_t wait; + struct list_head subscribed; /* Subscribed events */ + struct list_head free; /* Events ready for use */ + struct list_head available; /* Dequeueable event */ + unsigned int navailable; + unsigned int nallocated; /* Number of allocated events */ + u32 sequence; }; /* @@ -46,7 +53,7 @@ struct v4l2_fh { * from driver's v4l2_file_operations->open() handler if the driver * uses v4l2_fh. */ -int v4l2_fh_init(struct v4l2_fh *fh, struct video_device *vdev); +void v4l2_fh_init(struct v4l2_fh *fh, struct video_device *vdev); /* * Add the fh to the list of file handles on a video_device. The file * handle must be initialised first. -- cgit v1.2.3 From 77068d36d8b9e9902a89b4bb01011d41926f5420 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 13 Jun 2011 18:55:58 -0300 Subject: [media] v4l2-ctrls/event: remove struct v4l2_ctrl_fh, instead use v4l2_subscribed_event The v4l2_ctrl_fh struct connected v4l2_ctrl with v4l2_fh so the control would know which filehandles subscribed to it. However, it is much easier to use struct v4l2_subscribed_event directly for that and get rid of that intermediate struct. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-ctrls.h | 17 +++++++---------- include/media/v4l2-event.h | 9 +++++++++ 2 files changed, 16 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index 8f08c6edf509..a15e9098f98b 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -31,6 +31,7 @@ struct v4l2_ctrl; struct video_device; struct v4l2_subdev; struct v4l2_event_subscription; +struct v4l2_subscribed_event; struct v4l2_fh; /** struct v4l2_ctrl_ops - The control operations that the driver has to provide. @@ -53,6 +54,7 @@ struct v4l2_ctrl_ops { /** struct v4l2_ctrl - The control structure. * @node: The list node. + * @ev_subs: The list of control event subscriptions. * @handler: The handler that owns the control. * @cluster: Point to start of cluster array. * @ncontrols: Number of controls in cluster array. @@ -108,7 +110,7 @@ struct v4l2_ctrl_ops { struct v4l2_ctrl { /* Administrative fields */ struct list_head node; - struct list_head fhs; + struct list_head ev_subs; struct v4l2_ctrl_handler *handler; struct v4l2_ctrl **cluster; unsigned ncontrols; @@ -184,11 +186,6 @@ struct v4l2_ctrl_handler { int error; }; -struct v4l2_ctrl_fh { - struct list_head node; - struct v4l2_fh *fh; -}; - /** struct v4l2_ctrl_config - Control configuration structure. * @ops: The control ops. * @id: The control ID. @@ -497,10 +494,10 @@ s32 v4l2_ctrl_g_ctrl(struct v4l2_ctrl *ctrl); int v4l2_ctrl_s_ctrl(struct v4l2_ctrl *ctrl, s32 val); /* Internal helper functions that deal with control events. */ -void v4l2_ctrl_add_fh(struct v4l2_ctrl_handler *hdl, - struct v4l2_ctrl_fh *ctrl_fh, - struct v4l2_event_subscription *sub); -void v4l2_ctrl_del_fh(struct v4l2_ctrl *ctrl, struct v4l2_fh *fh); +void v4l2_ctrl_add_event(struct v4l2_ctrl *ctrl, + struct v4l2_subscribed_event *sev); +void v4l2_ctrl_del_event(struct v4l2_ctrl *ctrl, + struct v4l2_subscribed_event *sev); /** v4l2_ctrl_subscribe_fh() - Helper function that subscribes a control event. * @fh: The file handler that subscribed the control event. diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h index 042b893035de..eda17f8d78bc 100644 --- a/include/media/v4l2-event.h +++ b/include/media/v4l2-event.h @@ -38,9 +38,18 @@ struct v4l2_kevent { }; struct v4l2_subscribed_event { + /* list node for the v4l2_fh->subscribed list */ struct list_head list; + /* event type */ u32 type; + /* associated object ID (e.g. control ID) */ u32 id; + /* copy of v4l2_event_subscription->flags */ + u32 flags; + /* filehandle that subscribed to this event */ + struct v4l2_fh *fh; + /* list node that hooks into the object's event list (if there is one) */ + struct list_head node; }; int v4l2_event_alloc(struct v4l2_fh *fh, unsigned int n); -- cgit v1.2.3 From f1e393de382af9b9bd2462a42bfa16b8c501d81b Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 13 Jun 2011 19:24:17 -0300 Subject: [media] v4l2-event/ctrls/fh: allocate events per fh and per type instead of just per-fh The driver had to decide how many events to allocate when the v4l2_fh struct was created. It was possible to add more events afterwards, but there was no way to ensure that you wouldn't miss important events if the event queue would fill up for that filehandle. In addition, once there were no more free events, any new events were simply dropped on the floor. For the control event in particular this made life very difficult since control status/value changes could just be missed if the number of allocated events and the speed at which the application read events was too low to keep up with the number of generated events. The application would have no idea what the latest state was for a control since it could have missed the latest control change. So this patch makes some major changes in how events are allocated. Instead of allocating events per-filehandle they are now allocated when subscribing an event. So for that particular event type N events (determined by the driver) are allocated. Those events are reserved for that particular event type. This ensures that you will not miss events for a particular type altogether. In addition, if there are N events in use and a new event is raised, then the oldest event is dropped and the new one is added. So the latest event is always available. This can be further improved by adding the ability to merge the state of two events together, ensuring that no data is lost at all. This will be added in the next patch. This also makes it possible to allow the user to determine the number of events that will be allocated. This is not implemented at the moment, but would be trivial. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-ctrls.h | 19 ------------------- include/media/v4l2-event.h | 18 +++++++++++++++--- include/media/v4l2-fh.h | 2 -- include/media/v4l2-subdev.h | 2 -- 4 files changed, 15 insertions(+), 26 deletions(-) (limited to 'include') diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index a15e9098f98b..69662912e50c 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -171,7 +171,6 @@ struct v4l2_ctrl_ref { * control is needed multiple times, so this is a simple * optimization. * @buckets: Buckets for the hashing. Allows for quick control lookup. - * @nr_of_refs: Total number of control references in the list. * @nr_of_buckets: Total number of buckets in the array. * @error: The error code of the first failed control addition. */ @@ -181,7 +180,6 @@ struct v4l2_ctrl_handler { struct list_head ctrl_refs; struct v4l2_ctrl_ref *cached; struct v4l2_ctrl_ref **buckets; - u16 nr_of_refs; u16 nr_of_buckets; int error; }; @@ -499,23 +497,6 @@ void v4l2_ctrl_add_event(struct v4l2_ctrl *ctrl, void v4l2_ctrl_del_event(struct v4l2_ctrl *ctrl, struct v4l2_subscribed_event *sev); -/** v4l2_ctrl_subscribe_fh() - Helper function that subscribes a control event. - * @fh: The file handler that subscribed the control event. - * @sub: The event to subscribe (type must be V4L2_EVENT_CTRL). - * @n: How many events should be allocated? (Passed to v4l2_event_alloc). - * Recommended to set to twice the number of controls plus whatever - * is needed for other events. This function will set n to - * max(n, 2 * fh->ctrl_handler->nr_of_refs). - * - * A helper function that initializes the fh for events, allocates the - * list of events and subscribes the control event. - * - * Typically called in the handler of VIDIOC_SUBSCRIBE_EVENT in the - * V4L2_EVENT_CTRL case. - */ -int v4l2_ctrl_subscribe_fh(struct v4l2_fh *fh, - struct v4l2_event_subscription *sub, unsigned n); - /* Helpers for ioctl_ops. If hdl == NULL then they will all return -EINVAL. */ int v4l2_queryctrl(struct v4l2_ctrl_handler *hdl, struct v4l2_queryctrl *qc); int v4l2_querymenu(struct v4l2_ctrl_handler *hdl, struct v4l2_querymenu *qm); diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h index eda17f8d78bc..8d681e5ca552 100644 --- a/include/media/v4l2-event.h +++ b/include/media/v4l2-event.h @@ -30,10 +30,15 @@ #include struct v4l2_fh; +struct v4l2_subscribed_event; struct video_device; struct v4l2_kevent { + /* list node for the v4l2_fh->available list */ struct list_head list; + /* pointer to parent v4l2_subscribed_event */ + struct v4l2_subscribed_event *sev; + /* event itself */ struct v4l2_event event; }; @@ -50,18 +55,25 @@ struct v4l2_subscribed_event { struct v4l2_fh *fh; /* list node that hooks into the object's event list (if there is one) */ struct list_head node; + /* the number of elements in the events array */ + unsigned elems; + /* the index of the events containing the oldest available event */ + unsigned first; + /* the number of queued events */ + unsigned in_use; + /* an array of elems events */ + struct v4l2_kevent events[]; }; -int v4l2_event_alloc(struct v4l2_fh *fh, unsigned int n); -void v4l2_event_free(struct v4l2_fh *fh); int v4l2_event_dequeue(struct v4l2_fh *fh, struct v4l2_event *event, int nonblocking); void v4l2_event_queue(struct video_device *vdev, const struct v4l2_event *ev); void v4l2_event_queue_fh(struct v4l2_fh *fh, const struct v4l2_event *ev); int v4l2_event_pending(struct v4l2_fh *fh); int v4l2_event_subscribe(struct v4l2_fh *fh, - struct v4l2_event_subscription *sub); + struct v4l2_event_subscription *sub, unsigned elems); int v4l2_event_unsubscribe(struct v4l2_fh *fh, struct v4l2_event_subscription *sub); +void v4l2_event_unsubscribe_all(struct v4l2_fh *fh); #endif /* V4L2_EVENT_H */ diff --git a/include/media/v4l2-fh.h b/include/media/v4l2-fh.h index bfc0457ca6ef..52513c225c18 100644 --- a/include/media/v4l2-fh.h +++ b/include/media/v4l2-fh.h @@ -40,10 +40,8 @@ struct v4l2_fh { /* Events */ wait_queue_head_t wait; struct list_head subscribed; /* Subscribed events */ - struct list_head free; /* Events ready for use */ struct list_head available; /* Dequeueable event */ unsigned int navailable; - unsigned int nallocated; /* Number of allocated events */ u32 sequence; }; diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 2884e3e69cb1..b05579b4adb7 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -513,8 +513,6 @@ struct v4l2_subdev { void *host_priv; /* subdev device node */ struct video_device devnode; - /* number of events to be allocated on open */ - unsigned int nevents; }; #define media_entity_to_v4l2_subdev(ent) \ -- cgit v1.2.3 From 2151bdc887acfd6dc2c931b4d3c01f95e30b7df8 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 18 Jun 2011 07:02:20 -0300 Subject: [media] v4l2-event: add optional merge and replace callbacks When the event queue for a subscribed event is full, then the oldest event is dropped. It would be nice if the contents of that oldest event could be merged with the next-oldest. That way no information is lost, only intermediate steps are lost. This patch adds optional replace() (called when only one kevent was allocated) and merge() (called when more than one kevent was allocated) callbacks that will be called to do this job. These two callbacks are implemented for the V4L2_EVENT_CTRL event. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-event.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h index 8d681e5ca552..6da793fa4d34 100644 --- a/include/media/v4l2-event.h +++ b/include/media/v4l2-event.h @@ -55,6 +55,12 @@ struct v4l2_subscribed_event { struct v4l2_fh *fh; /* list node that hooks into the object's event list (if there is one) */ struct list_head node; + /* Optional callback that can replace event 'old' with event 'new'. */ + void (*replace)(struct v4l2_event *old, + const struct v4l2_event *new); + /* Optional callback that can merge event 'old' into event 'new'. */ + void (*merge)(const struct v4l2_event *old, + struct v4l2_event *new); /* the number of elements in the events array */ unsigned elems; /* the index of the events containing the oldest available event */ -- cgit v1.2.3 From eb5b16efb26ff5b2d0ba25a114394db69c433f86 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 14 Jun 2011 10:04:06 -0300 Subject: [media] v4l2-ctrls: improve discovery of controls of the same cluster The implementation of VIDIOC_G/S/TRY_EXT_CTRLS in the control framework has to figure out which controls in the control list belong to the same cluster. Since controls belonging to the same cluster need to be handled as a unit, this is important information. It did that by going over the controls in the list and for each control that belonged to a multi-control cluster it would walk the remainder of the list to try and find controls that belong to that same cluster. This approach has two disadvantages: 1) it was a potentially quadratic algorithm (although highly unlikely that it would ever be that bad in practice). 2) it took place with the control handler's lock held. Since we want to make it possible in the future to change control values from interrupt context, doing a lot of work while holding a lock is not a good idea. In the new code the algorithm is no longer quadratic but linear in the number of controls in the list. Also, it now can be done beforehand. Another change that was made was to so the try and set at the same time. Before when S_TRY_EXT_CTRLS was called it would 'try' the controls first, and then it would 'set' them. The idea was that any 'try' errors would prevent the 'set' from happening, thus avoiding having partially set control lists. However, this caused more problems than it solved because between the 'try' and the 'set' changes might have happened, so it had to try a second time, and since actual controls with a try_ctrl op are very rare (and those that we have just adjust values and do not return an error), I've decided to drop that two-stage approach and just combine try and set. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-ctrls.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index 69662912e50c..fe55a4e0324f 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -27,6 +27,7 @@ /* forward references */ struct v4l2_ctrl_handler; +struct v4l2_ctrl_helper; struct v4l2_ctrl; struct video_device; struct v4l2_subdev; @@ -150,6 +151,7 @@ struct v4l2_ctrl { * @node: List node for the sorted list. * @next: Single-link list node for the hash. * @ctrl: The actual control information. + * @helper: Pointer to helper struct. Used internally in prepare_ext_ctrls(). * * Each control handler has a list of these refs. The list_head is used to * keep a sorted-by-control-ID list of all controls, while the next pointer @@ -159,6 +161,7 @@ struct v4l2_ctrl_ref { struct list_head node; struct v4l2_ctrl_ref *next; struct v4l2_ctrl *ctrl; + struct v4l2_ctrl_helper *helper; }; /** struct v4l2_ctrl_handler - The control handler keeps track of all the -- cgit v1.2.3 From 3f66f0ed319505555f45ceac04775b23f9279ee6 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 20 Jun 2011 11:56:24 -0300 Subject: [media] v4l2-ctrls/v4l2-events: small coding style cleanups Thanks to Laurent Pinchart . Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-ctrls.h | 1 - include/media/v4l2-event.h | 34 +++++++++++++++++++--------------- 2 files changed, 19 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h index fe55a4e0324f..13fe4d744aba 100644 --- a/include/media/v4l2-ctrls.h +++ b/include/media/v4l2-ctrls.h @@ -31,7 +31,6 @@ struct v4l2_ctrl_helper; struct v4l2_ctrl; struct video_device; struct v4l2_subdev; -struct v4l2_event_subscription; struct v4l2_subscribed_event; struct v4l2_fh; diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h index 6da793fa4d34..7abeb397d130 100644 --- a/include/media/v4l2-event.h +++ b/include/media/v4l2-event.h @@ -33,41 +33,45 @@ struct v4l2_fh; struct v4l2_subscribed_event; struct video_device; +/** struct v4l2_kevent - Internal kernel event struct. + * @list: List node for the v4l2_fh->available list. + * @sev: Pointer to parent v4l2_subscribed_event. + * @event: The event itself. + */ struct v4l2_kevent { - /* list node for the v4l2_fh->available list */ struct list_head list; - /* pointer to parent v4l2_subscribed_event */ struct v4l2_subscribed_event *sev; - /* event itself */ struct v4l2_event event; }; +/** struct v4l2_subscribed_event - Internal struct representing a subscribed event. + * @list: List node for the v4l2_fh->subscribed list. + * @type: Event type. + * @id: Associated object ID (e.g. control ID). 0 if there isn't any. + * @flags: Copy of v4l2_event_subscription->flags. + * @fh: Filehandle that subscribed to this event. + * @node: List node that hooks into the object's event list (if there is one). + * @replace: Optional callback that can replace event 'old' with event 'new'. + * @merge: Optional callback that can merge event 'old' into event 'new'. + * @elems: The number of elements in the events array. + * @first: The index of the events containing the oldest available event. + * @in_use: The number of queued events. + * @events: An array of @elems events. + */ struct v4l2_subscribed_event { - /* list node for the v4l2_fh->subscribed list */ struct list_head list; - /* event type */ u32 type; - /* associated object ID (e.g. control ID) */ u32 id; - /* copy of v4l2_event_subscription->flags */ u32 flags; - /* filehandle that subscribed to this event */ struct v4l2_fh *fh; - /* list node that hooks into the object's event list (if there is one) */ struct list_head node; - /* Optional callback that can replace event 'old' with event 'new'. */ void (*replace)(struct v4l2_event *old, const struct v4l2_event *new); - /* Optional callback that can merge event 'old' into event 'new'. */ void (*merge)(const struct v4l2_event *old, struct v4l2_event *new); - /* the number of elements in the events array */ unsigned elems; - /* the index of the events containing the oldest available event */ unsigned first; - /* the number of queued events */ unsigned in_use; - /* an array of elems events */ struct v4l2_kevent events[]; }; -- cgit v1.2.3 From 3ad57c33846d884cfeed770238b27f3dcf3742f1 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 20 Jun 2011 12:00:36 -0300 Subject: [media] v4l2-event.h: add overview documentation to the header It's getting confusing who is linking to what, so add an overview at the start of the header. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-event.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-event.h b/include/media/v4l2-event.h index 7abeb397d130..5f14e8895ce2 100644 --- a/include/media/v4l2-event.h +++ b/include/media/v4l2-event.h @@ -29,6 +29,40 @@ #include #include +/* + * Overview: + * + * Events are subscribed per-filehandle. An event specification consists of a + * type and is optionally associated with an object identified through the + * 'id' field. So an event is uniquely identified by the (type, id) tuple. + * + * The v4l2-fh struct has a list of subscribed events. The v4l2_subscribed_event + * struct is added to that list, one for every subscribed event. + * + * Each v4l2_subscribed_event struct ends with an array of v4l2_kevent structs. + * This array (ringbuffer, really) is used to store any events raised by the + * driver. The v4l2_kevent struct links into the 'available' list of the + * v4l2_fh struct so VIDIOC_DQEVENT will know which event to dequeue first. + * + * Finally, if the event subscription is associated with a particular object + * such as a V4L2 control, then that object needs to know about that as well + * so that an event can be raised by that object. So the 'node' field can + * be used to link the v4l2_subscribed_event struct into a list of that + * object. + * + * So to summarize: + * + * struct v4l2_fh has two lists: one of the subscribed events, and one of the + * pending events. + * + * struct v4l2_subscribed_event has a ringbuffer of raised (pending) events of + * that particular type. + * + * If struct v4l2_subscribed_event is associated with a specific object, then + * that object will have an internal list of struct v4l2_subscribed_event so + * it knows who subscribed an event to that object. + */ + struct v4l2_fh; struct v4l2_subscribed_event; struct video_device; -- cgit v1.2.3 From 60c0732244164f14e376cfae493dba368f761514 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 29 Jun 2011 08:56:22 -0300 Subject: [media] v4l2-ctrls.c: add support for V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK Normally no control events will go to the filehandle that called the VIDIOC_S_CTRL/VIDIOC_S_EXT_CTRLS ioctls. This is to prevent a feedback loop. This can now be overridden by setting the new V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK flag. Based on suggestions from Mauro Carvalho Chehab and Laurent Pinchart . Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index baafe2f2e02a..2c4e83796301 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1832,7 +1832,8 @@ struct v4l2_event { __u32 reserved[8]; }; -#define V4L2_EVENT_SUB_FL_SEND_INITIAL (1 << 0) +#define V4L2_EVENT_SUB_FL_SEND_INITIAL (1 << 0) +#define V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK (1 << 1) struct v4l2_event_subscription { __u32 type; -- cgit v1.2.3 From 21144ea601f1fea37c7add15a099affec7c08425 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sun, 5 Jun 2011 08:32:27 -0300 Subject: [media] videodev2.h Add SE401 compressed RGB format Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 2c4e83796301..f002006fc0a9 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -402,6 +402,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_CIT_YYVYUY v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */ #define V4L2_PIX_FMT_KONICA420 v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */ #define V4L2_PIX_FMT_JPGL v4l2_fourcc('J', 'P', 'G', 'L') /* JPEG-Lite */ +#define V4L2_PIX_FMT_SE401 v4l2_fourcc('S', '4', '0', '1') /* se401 janggu compressed rgb */ /* * F O R M A T E N U M E R A T I O N -- cgit v1.2.3 From fa4d7096d1fb7c012ebaacefee132007a21e0965 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 23 May 2011 04:07:05 -0300 Subject: [media] v4l2-ctrls: add new bitmask control type Signed-off-by: Hans Verkuil Reviewed-by: Laurent Pinchart Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index f002006fc0a9..148d1a51ca22 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1040,6 +1040,7 @@ enum v4l2_ctrl_type { V4L2_CTRL_TYPE_INTEGER64 = 5, V4L2_CTRL_TYPE_CTRL_CLASS = 6, V4L2_CTRL_TYPE_STRING = 7, + V4L2_CTRL_TYPE_BITMASK = 8, }; /* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */ -- cgit v1.2.3 From 0b159acdd577dfd961ad14177c23e97d3ad33009 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Mon, 21 Mar 2011 12:52:51 -0300 Subject: [media] v4l: Add a class and a set of controls for flash devices Add a control class and a set of controls to support LED and Xenon flash devices. An example of such a device is the adp1653. Signed-off-by: Sakari Ailus Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) (limited to 'include') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 148d1a51ca22..8b1224c1c536 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1027,6 +1027,7 @@ struct v4l2_ext_controls { #define V4L2_CTRL_CLASS_MPEG 0x00990000 /* MPEG-compression controls */ #define V4L2_CTRL_CLASS_CAMERA 0x009a0000 /* Camera class controls */ #define V4L2_CTRL_CLASS_FM_TX 0x009b0000 /* FM Modulator control class */ +#define V4L2_CTRL_CLASS_FLASH 0x009c0000 /* Camera flash controls */ #define V4L2_CTRL_ID_MASK (0x0fffffff) #define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL) @@ -1429,6 +1430,41 @@ enum v4l2_preemphasis { #define V4L2_CID_TUNE_POWER_LEVEL (V4L2_CID_FM_TX_CLASS_BASE + 113) #define V4L2_CID_TUNE_ANTENNA_CAPACITOR (V4L2_CID_FM_TX_CLASS_BASE + 114) +/* Flash and privacy (indicator) light controls */ +#define V4L2_CID_FLASH_CLASS_BASE (V4L2_CTRL_CLASS_FLASH | 0x900) +#define V4L2_CID_FLASH_CLASS (V4L2_CTRL_CLASS_FLASH | 1) + +#define V4L2_CID_FLASH_LED_MODE (V4L2_CID_FLASH_CLASS_BASE + 1) +enum v4l2_flash_led_mode { + V4L2_FLASH_LED_MODE_NONE, + V4L2_FLASH_LED_MODE_FLASH, + V4L2_FLASH_LED_MODE_TORCH, +}; + +#define V4L2_CID_FLASH_STROBE_SOURCE (V4L2_CID_FLASH_CLASS_BASE + 2) +enum v4l2_flash_strobe_source { + V4L2_FLASH_STROBE_SOURCE_SOFTWARE, + V4L2_FLASH_STROBE_SOURCE_EXTERNAL, +}; + +#define V4L2_CID_FLASH_STROBE (V4L2_CID_FLASH_CLASS_BASE + 3) +#define V4L2_CID_FLASH_STROBE_STOP (V4L2_CID_FLASH_CLASS_BASE + 4) +#define V4L2_CID_FLASH_STROBE_STATUS (V4L2_CID_FLASH_CLASS_BASE + 5) + +#define V4L2_CID_FLASH_TIMEOUT (V4L2_CID_FLASH_CLASS_BASE + 6) +#define V4L2_CID_FLASH_INTENSITY (V4L2_CID_FLASH_CLASS_BASE + 7) +#define V4L2_CID_FLASH_TORCH_INTENSITY (V4L2_CID_FLASH_CLASS_BASE + 8) +#define V4L2_CID_FLASH_INDICATOR_INTENSITY (V4L2_CID_FLASH_CLASS_BASE + 9) + +#define V4L2_CID_FLASH_FAULT (V4L2_CID_FLASH_CLASS_BASE + 10) +#define V4L2_FLASH_FAULT_OVER_VOLTAGE (1 << 0) +#define V4L2_FLASH_FAULT_TIMEOUT (1 << 1) +#define V4L2_FLASH_FAULT_OVER_TEMPERATURE (1 << 2) +#define V4L2_FLASH_FAULT_SHORT_CIRCUIT (1 << 3) + +#define V4L2_CID_FLASH_CHARGE (V4L2_CID_FLASH_CLASS_BASE + 11) +#define V4L2_CID_FLASH_READY (V4L2_CID_FLASH_CLASS_BASE + 12) + /* * T U N I N G */ -- cgit v1.2.3 From 13abadad177074b84f6697639e1d4f64a55b1773 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Thu, 5 May 2011 15:39:25 -0300 Subject: [media] adp1653: Add driver for LED flash controller This patch adds the driver for the adp1653 LED flash controller. This controller supports a high power led in flash and torch modes and an indicator light, sometimes also called privacy light. The adp1653 is used on the Nokia N900. Signed-off-by: Sakari Ailus Signed-off-by: Tuukka Toivonen Signed-off-by: Laurent Pinchart Signed-off-by: David Cohen Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- include/media/adp1653.h | 126 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 include/media/adp1653.h (limited to 'include') diff --git a/include/media/adp1653.h b/include/media/adp1653.h new file mode 100644 index 000000000000..50a1af88aed0 --- /dev/null +++ b/include/media/adp1653.h @@ -0,0 +1,126 @@ +/* + * include/media/adp1653.h + * + * Copyright (C) 2008--2011 Nokia Corporation + * + * Contact: Sakari Ailus + * + * Contributors: + * Sakari Ailus + * Tuukka Toivonen + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + * + */ + +#ifndef ADP1653_H +#define ADP1653_H + +#include +#include +#include +#include +#include + +#define ADP1653_NAME "adp1653" +#define ADP1653_I2C_ADDR (0x60 >> 1) + +/* Register definitions */ +#define ADP1653_REG_OUT_SEL 0x00 +#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN 0x01 +#define ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX 0x0b +#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN 0x0c +#define ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX 0x1f +#define ADP1653_REG_OUT_SEL_HPLED_SHIFT 3 +#define ADP1653_REG_OUT_SEL_ILED_MAX 0x07 +#define ADP1653_REG_OUT_SEL_ILED_SHIFT 0 + +#define ADP1653_REG_CONFIG 0x01 +#define ADP1653_REG_CONFIG_TMR_CFG (1 << 4) +#define ADP1653_REG_CONFIG_TMR_SET_MAX 0x0f +#define ADP1653_REG_CONFIG_TMR_SET_SHIFT 0 + +#define ADP1653_REG_SW_STROBE 0x02 +#define ADP1653_REG_SW_STROBE_SW_STROBE (1 << 0) + +#define ADP1653_REG_FAULT 0x03 +#define ADP1653_REG_FAULT_FLT_SCP (1 << 3) +#define ADP1653_REG_FAULT_FLT_OT (1 << 2) +#define ADP1653_REG_FAULT_FLT_TMR (1 << 1) +#define ADP1653_REG_FAULT_FLT_OV (1 << 0) + +#define ADP1653_INDICATOR_INTENSITY_MIN 0 +#define ADP1653_INDICATOR_INTENSITY_STEP 2500 +#define ADP1653_INDICATOR_INTENSITY_MAX \ + (ADP1653_REG_OUT_SEL_ILED_MAX * ADP1653_INDICATOR_INTENSITY_STEP) +#define ADP1653_INDICATOR_INTENSITY_uA_TO_REG(a) \ + ((a) / ADP1653_INDICATOR_INTENSITY_STEP) +#define ADP1653_INDICATOR_INTENSITY_REG_TO_uA(a) \ + ((a) * ADP1653_INDICATOR_INTENSITY_STEP) + +#define ADP1653_FLASH_INTENSITY_BASE 35 +#define ADP1653_FLASH_INTENSITY_STEP 15 +#define ADP1653_FLASH_INTENSITY_MIN \ + (ADP1653_FLASH_INTENSITY_BASE \ + + ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN * ADP1653_FLASH_INTENSITY_STEP) +#define ADP1653_FLASH_INTENSITY_MAX \ + (ADP1653_FLASH_INTENSITY_MIN + \ + (ADP1653_REG_OUT_SEL_HPLED_FLASH_MAX - \ + ADP1653_REG_OUT_SEL_HPLED_FLASH_MIN + 1) * \ + ADP1653_FLASH_INTENSITY_STEP) + +#define ADP1653_FLASH_INTENSITY_mA_TO_REG(a) \ + ((a) < ADP1653_FLASH_INTENSITY_BASE ? 0 : \ + (((a) - ADP1653_FLASH_INTENSITY_BASE) / ADP1653_FLASH_INTENSITY_STEP)) +#define ADP1653_FLASH_INTENSITY_REG_TO_mA(a) \ + ((a) * ADP1653_FLASH_INTENSITY_STEP + ADP1653_FLASH_INTENSITY_BASE) + +#define ADP1653_TORCH_INTENSITY_MIN \ + (ADP1653_FLASH_INTENSITY_BASE \ + + ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN * ADP1653_FLASH_INTENSITY_STEP) +#define ADP1653_TORCH_INTENSITY_MAX \ + (ADP1653_TORCH_INTENSITY_MIN + \ + (ADP1653_REG_OUT_SEL_HPLED_TORCH_MAX - \ + ADP1653_REG_OUT_SEL_HPLED_TORCH_MIN + 1) * \ + ADP1653_FLASH_INTENSITY_STEP) + +struct adp1653_platform_data { + int (*power)(struct v4l2_subdev *sd, int on); + + u32 max_flash_timeout; /* flash light timeout in us */ + u32 max_flash_intensity; /* led intensity, flash mode */ + u32 max_torch_intensity; /* led intensity, torch mode */ + u32 max_indicator_intensity; /* indicator led intensity */ +}; + +#define to_adp1653_flash(sd) container_of(sd, struct adp1653_flash, subdev) + +struct adp1653_flash { + struct v4l2_subdev subdev; + struct adp1653_platform_data *platform_data; + + struct v4l2_ctrl_handler ctrls; + struct v4l2_ctrl *led_mode; + struct v4l2_ctrl *flash_timeout; + struct v4l2_ctrl *flash_intensity; + struct v4l2_ctrl *torch_intensity; + struct v4l2_ctrl *indicator_intensity; + + struct mutex power_lock; + int power_count; + int fault; +}; + +#endif /* ADP1653_H */ -- cgit v1.2.3 From 4fa64dae8c55ea9d3be4eb5f23ad0c9a60fa6d95 Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Mon, 4 Jul 2011 13:25:50 -0300 Subject: [media] v4l: add fourcc definitions for compressed formats Add fourcc definitions and documentation for the following compressed formats: H264, H264 without start codes, MPEG1/2/4 ES, XVID, VC1 Annex G and Annex L compliant. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 8b1224c1c536..cb22a2c7a467 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -376,7 +376,16 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_MJPEG v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG */ #define V4L2_PIX_FMT_JPEG v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG */ #define V4L2_PIX_FMT_DV v4l2_fourcc('d', 'v', 's', 'd') /* 1394 */ -#define V4L2_PIX_FMT_MPEG v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 */ +#define V4L2_PIX_FMT_MPEG v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 Multiplexed */ +#define V4L2_PIX_FMT_H264 v4l2_fourcc('H', '2', '6', '4') /* H264 with start codes */ +#define V4L2_PIX_FMT_H264_NO_SC v4l2_fourcc('A', 'V', 'C', '1') /* H264 without start codes */ +#define V4L2_PIX_FMT_H263 v4l2_fourcc('H', '2', '6', '3') /* H263 */ +#define V4L2_PIX_FMT_MPEG1 v4l2_fourcc('M', 'P', 'G', '1') /* MPEG-1 ES */ +#define V4L2_PIX_FMT_MPEG2 v4l2_fourcc('M', 'P', 'G', '2') /* MPEG-2 ES */ +#define V4L2_PIX_FMT_MPEG4 v4l2_fourcc('M', 'P', 'G', '4') /* MPEG-4 ES */ +#define V4L2_PIX_FMT_XVID v4l2_fourcc('X', 'V', 'I', 'D') /* Xvid */ +#define V4L2_PIX_FMT_VC1_ANNEX_G v4l2_fourcc('V', 'C', '1', 'G') /* SMPTE 421M Annex G compliant stream */ +#define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE 421M Annex L compliant stream */ /* Vendor-specific formats */ #define V4L2_PIX_FMT_CPIA1 v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */ @@ -1154,7 +1163,7 @@ enum v4l2_colorfx { #define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900) #define V4L2_CID_MPEG_CLASS (V4L2_CTRL_CLASS_MPEG | 1) -/* MPEG streams */ +/* MPEG streams, specific to multiplexed streams */ #define V4L2_CID_MPEG_STREAM_TYPE (V4L2_CID_MPEG_BASE+0) enum v4l2_mpeg_stream_type { V4L2_MPEG_STREAM_TYPE_MPEG2_PS = 0, /* MPEG-2 program stream */ @@ -1176,7 +1185,7 @@ enum v4l2_mpeg_stream_vbi_fmt { V4L2_MPEG_STREAM_VBI_FMT_IVTV = 1, /* VBI in private packets, IVTV format */ }; -/* MPEG audio */ +/* MPEG audio controls specific to multiplexed streams */ #define V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ (V4L2_CID_MPEG_BASE+100) enum v4l2_mpeg_audio_sampling_freq { V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100 = 0, @@ -1292,7 +1301,7 @@ enum v4l2_mpeg_audio_ac3_bitrate { V4L2_MPEG_AUDIO_AC3_BITRATE_640K = 18, }; -/* MPEG video */ +/* MPEG video controls specific to multiplexed streams */ #define V4L2_CID_MPEG_VIDEO_ENCODING (V4L2_CID_MPEG_BASE+200) enum v4l2_mpeg_video_encoding { V4L2_MPEG_VIDEO_ENCODING_MPEG_1 = 0, -- cgit v1.2.3 From e65e4f134db36c70f13e9703d8e253e6b196ca47 Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Tue, 14 Jun 2011 10:31:04 -0300 Subject: [media] v4l: add control definitions for codec devices Add control definitions and documentation for controls specific to codec devices. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 169 +++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 168 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index cb22a2c7a467..fca24cc50436 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1156,8 +1156,13 @@ enum v4l2_colorfx { #define V4L2_CID_ILLUMINATORS_1 (V4L2_CID_BASE+37) #define V4L2_CID_ILLUMINATORS_2 (V4L2_CID_BASE+38) +#define V4L2_CID_MIN_BUFFERS_FOR_CAPTURE (V4L2_CID_BASE+39) +#define V4L2_CID_MIN_BUFFERS_FOR_OUTPUT (V4L2_CID_BASE+40) + /* last CID + 1 */ -#define V4L2_CID_LASTP1 (V4L2_CID_BASE+39) +#define V4L2_CID_LASTP1 (V4L2_CID_BASE+41) + +/* Minimum number of buffer neede by the device */ /* MPEG-class control IDs defined by V4L2 */ #define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900) @@ -1329,6 +1334,141 @@ enum v4l2_mpeg_video_bitrate_mode { #define V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION (V4L2_CID_MPEG_BASE+209) #define V4L2_CID_MPEG_VIDEO_MUTE (V4L2_CID_MPEG_BASE+210) #define V4L2_CID_MPEG_VIDEO_MUTE_YUV (V4L2_CID_MPEG_BASE+211) +#define V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE (V4L2_CID_MPEG_BASE+212) +#define V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER (V4L2_CID_MPEG_BASE+213) +#define V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB (V4L2_CID_MPEG_BASE+214) +#define V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE (V4L2_CID_MPEG_BASE+215) +#define V4L2_CID_MPEG_VIDEO_HEADER_MODE (V4L2_CID_MPEG_BASE+216) +enum v4l2_mpeg_video_header_mode { + V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE = 0, + V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME = 1, + +}; +#define V4L2_CID_MPEG_VIDEO_MAX_REF_PIC (V4L2_CID_MPEG_BASE+217) +#define V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE (V4L2_CID_MPEG_BASE+218) +#define V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES (V4L2_CID_MPEG_BASE+219) +#define V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB (V4L2_CID_MPEG_BASE+220) +#define V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE (V4L2_CID_MPEG_BASE+221) +enum v4l2_mpeg_video_multi_slice_mode { + V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE = 0, + V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB = 1, + V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_BYTES = 2, +}; +#define V4L2_CID_MPEG_VIDEO_VBV_SIZE (V4L2_CID_MPEG_BASE+222) +#define V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP (V4L2_CID_MPEG_BASE+300) +#define V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP (V4L2_CID_MPEG_BASE+301) +#define V4L2_CID_MPEG_VIDEO_H263_B_FRAME_QP (V4L2_CID_MPEG_BASE+302) +#define V4L2_CID_MPEG_VIDEO_H263_MIN_QP (V4L2_CID_MPEG_BASE+303) +#define V4L2_CID_MPEG_VIDEO_H263_MAX_QP (V4L2_CID_MPEG_BASE+304) +#define V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP (V4L2_CID_MPEG_BASE+350) +#define V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP (V4L2_CID_MPEG_BASE+351) +#define V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP (V4L2_CID_MPEG_BASE+352) +#define V4L2_CID_MPEG_VIDEO_H264_MIN_QP (V4L2_CID_MPEG_BASE+353) +#define V4L2_CID_MPEG_VIDEO_H264_MAX_QP (V4L2_CID_MPEG_BASE+354) +#define V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM (V4L2_CID_MPEG_BASE+355) +#define V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE (V4L2_CID_MPEG_BASE+356) +#define V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE (V4L2_CID_MPEG_BASE+357) +enum v4l2_mpeg_video_h264_entropy_mode { + V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC = 0, + V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC = 1, +}; +#define V4L2_CID_MPEG_VIDEO_H264_I_PERIOD (V4L2_CID_MPEG_BASE+358) +#define V4L2_CID_MPEG_VIDEO_H264_LEVEL (V4L2_CID_MPEG_BASE+359) +enum v4l2_mpeg_video_h264_level { + V4L2_MPEG_VIDEO_H264_LEVEL_1_0 = 0, + V4L2_MPEG_VIDEO_H264_LEVEL_1B = 1, + V4L2_MPEG_VIDEO_H264_LEVEL_1_1 = 2, + V4L2_MPEG_VIDEO_H264_LEVEL_1_2 = 3, + V4L2_MPEG_VIDEO_H264_LEVEL_1_3 = 4, + V4L2_MPEG_VIDEO_H264_LEVEL_2_0 = 5, + V4L2_MPEG_VIDEO_H264_LEVEL_2_1 = 6, + V4L2_MPEG_VIDEO_H264_LEVEL_2_2 = 7, + V4L2_MPEG_VIDEO_H264_LEVEL_3_0 = 8, + V4L2_MPEG_VIDEO_H264_LEVEL_3_1 = 9, + V4L2_MPEG_VIDEO_H264_LEVEL_3_2 = 10, + V4L2_MPEG_VIDEO_H264_LEVEL_4_0 = 11, + V4L2_MPEG_VIDEO_H264_LEVEL_4_1 = 12, + V4L2_MPEG_VIDEO_H264_LEVEL_4_2 = 13, + V4L2_MPEG_VIDEO_H264_LEVEL_5_0 = 14, + V4L2_MPEG_VIDEO_H264_LEVEL_5_1 = 15, +}; +#define V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA (V4L2_CID_MPEG_BASE+360) +#define V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA (V4L2_CID_MPEG_BASE+361) +#define V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE (V4L2_CID_MPEG_BASE+362) +enum v4l2_mpeg_video_h264_loop_filter_mode { + V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED = 0, + V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED = 1, + V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY = 2, +}; +#define V4L2_CID_MPEG_VIDEO_H264_PROFILE (V4L2_CID_MPEG_BASE+363) +enum v4l2_mpeg_video_h264_profile { + V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE = 0, + V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE = 1, + V4L2_MPEG_VIDEO_H264_PROFILE_MAIN = 2, + V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED = 3, + V4L2_MPEG_VIDEO_H264_PROFILE_HIGH = 4, + V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10 = 5, + V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422 = 6, + V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE = 7, + V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10_INTRA = 8, + V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422_INTRA = 9, + V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_INTRA = 10, + V4L2_MPEG_VIDEO_H264_PROFILE_CAVLC_444_INTRA = 11, + V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_BASELINE = 12, + V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH = 13, + V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH_INTRA = 14, + V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH = 15, + V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH = 16, +}; +#define V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT (V4L2_CID_MPEG_BASE+364) +#define V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH (V4L2_CID_MPEG_BASE+365) +#define V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE (V4L2_CID_MPEG_BASE+366) +#define V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC (V4L2_CID_MPEG_BASE+367) +enum v4l2_mpeg_video_h264_vui_sar_idc { + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_UNSPECIFIED = 0, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_1x1 = 1, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_12x11 = 2, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_10x11 = 3, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_16x11 = 4, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_40x33 = 5, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_24x11 = 6, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_20x11 = 7, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_32x11 = 8, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_80x33 = 9, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_18x11 = 10, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_15x11 = 11, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_64x33 = 12, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_160x99 = 13, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_4x3 = 14, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_3x2 = 15, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_2x1 = 16, + V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_EXTENDED = 17, +}; +#define V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP (V4L2_CID_MPEG_BASE+400) +#define V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP (V4L2_CID_MPEG_BASE+401) +#define V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP (V4L2_CID_MPEG_BASE+402) +#define V4L2_CID_MPEG_VIDEO_MPEG4_MIN_QP (V4L2_CID_MPEG_BASE+403) +#define V4L2_CID_MPEG_VIDEO_MPEG4_MAX_QP (V4L2_CID_MPEG_BASE+404) +#define V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL (V4L2_CID_MPEG_BASE+405) +enum v4l2_mpeg_video_mpeg4_level { + V4L2_MPEG_VIDEO_MPEG4_LEVEL_0 = 0, + V4L2_MPEG_VIDEO_MPEG4_LEVEL_0B = 1, + V4L2_MPEG_VIDEO_MPEG4_LEVEL_1 = 2, + V4L2_MPEG_VIDEO_MPEG4_LEVEL_2 = 3, + V4L2_MPEG_VIDEO_MPEG4_LEVEL_3 = 4, + V4L2_MPEG_VIDEO_MPEG4_LEVEL_3B = 5, + V4L2_MPEG_VIDEO_MPEG4_LEVEL_4 = 6, + V4L2_MPEG_VIDEO_MPEG4_LEVEL_5 = 7, +}; +#define V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE (V4L2_CID_MPEG_BASE+406) +enum v4l2_mpeg_video_mpeg4_profile { + V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE = 0, + V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE = 1, + V4L2_MPEG_VIDEO_MPEG4_PROFILE_CORE = 2, + V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE_SCALABLE = 3, + V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_CODING_EFFICIENCY = 4, +}; +#define V4L2_CID_MPEG_VIDEO_MPEG4_QPEL (V4L2_CID_MPEG_BASE+407) /* MPEG-class control IDs specific to the CX2341x driver as defined by V4L2 */ #define V4L2_CID_MPEG_CX2341X_BASE (V4L2_CTRL_CLASS_MPEG | 0x1000) @@ -1371,6 +1511,33 @@ enum v4l2_mpeg_cx2341x_video_median_filter_type { #define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP (V4L2_CID_MPEG_CX2341X_BASE+10) #define V4L2_CID_MPEG_CX2341X_STREAM_INSERT_NAV_PACKETS (V4L2_CID_MPEG_CX2341X_BASE+11) +/* MPEG-class control IDs specific to the Samsung MFC 5.1 driver as defined by V4L2 */ +#define V4L2_CID_MPEG_MFC51_BASE (V4L2_CTRL_CLASS_MPEG | 0x1100) + +#define V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY (V4L2_CID_MPEG_MFC51_BASE+0) +#define V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE (V4L2_CID_MPEG_MFC51_BASE+1) +#define V4L2_CID_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE (V4L2_CID_MPEG_MFC51_BASE+2) +enum v4l2_mpeg_mfc51_video_frame_skip_mode { + V4L2_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE_DISABLED = 0, + V4L2_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE_LEVEL_LIMIT = 1, + V4L2_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE_BUF_LIMIT = 2, +}; +#define V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE (V4L2_CID_MPEG_MFC51_BASE+3) +enum v4l2_mpeg_mfc51_video_force_frame_type { + V4L2_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE_DISABLED = 0, + V4L2_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE_I_FRAME = 1, + V4L2_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE_NOT_CODED = 2, +}; +#define V4L2_CID_MPEG_MFC51_VIDEO_PADDING (V4L2_CID_MPEG_MFC51_BASE+4) +#define V4L2_CID_MPEG_MFC51_VIDEO_PADDING_YUV (V4L2_CID_MPEG_MFC51_BASE+5) +#define V4L2_CID_MPEG_MFC51_VIDEO_RC_FIXED_TARGET_BIT (V4L2_CID_MPEG_MFC51_BASE+6) +#define V4L2_CID_MPEG_MFC51_VIDEO_RC_REACTION_COEFF (V4L2_CID_MPEG_MFC51_BASE+7) +#define V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_ACTIVITY (V4L2_CID_MPEG_MFC51_BASE+50) +#define V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_DARK (V4L2_CID_MPEG_MFC51_BASE+51) +#define V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_SMOOTH (V4L2_CID_MPEG_MFC51_BASE+52) +#define V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_STATIC (V4L2_CID_MPEG_MFC51_BASE+53) +#define V4L2_CID_MPEG_MFC51_VIDEO_H264_NUM_REF_PIC_FOR_P (V4L2_CID_MPEG_MFC51_BASE+54) + /* Camera class control IDs */ #define V4L2_CID_CAMERA_CLASS_BASE (V4L2_CTRL_CLASS_CAMERA | 0x900) #define V4L2_CID_CAMERA_CLASS (V4L2_CTRL_CLASS_CAMERA | 1) -- cgit v1.2.3 From f5f2cc646af13b0cf74b9d676408473123c9ea76 Mon Sep 17 00:00:00 2001 From: Jarod Wilson Date: Wed, 13 Jul 2011 18:09:48 -0300 Subject: [media] rc-core support for Microsoft IR keyboard/mouse This is a custom IR protocol decoder, for the RC-6-ish protocol used by the Microsoft Remote Keyboard, apparently developed internally at Microsoft, and officially dubbed MCIR-2, per their March 2011 remote and transceiver requirements and specifications document, which also touches on this IR keyboard/mouse device. Its a standard keyboard with embedded thumb stick mouse pointer and mouse buttons, along with a number of media keys. The media keys are standard RC-6, identical to the signals from the stock MCE remotes, and will be handled as such. The keyboard and mouse signals will be decoded and delivered to the system by an input device registered specifically by this driver. Successfully tested with multiple mceusb-driven transceivers, as well as with fintek-cir and redrat3 hardware. Essentially, any raw IR hardware with enough sampling resolution should be able to use this decoder, nothing about it is at all receiver-hardware-specific. This work is inspired by lirc_mod_mce: The documentation there and code aided in understanding and decoding the protocol, but the bulk of the code is actually borrowed more from the existing in-kernel decoders than anything. I did recycle the keyboard keycode table, a few defines, and some of the keyboard and mouse data parsing bits from lirc_mod_mce though. Special thanks to James Meyer for providing the hardware, and being patient with me as I took forever to get around to writing this. callback routine to ensure we don't get any stuck keys, and used symbolic names for the keytable. Also cc'ing Florian this time, who I believe is the original mod-mce author... CC: Florian Demski Signed-off-by: Jarod Wilson Signed-off-by: Mauro Carvalho Chehab --- include/media/rc-map.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/media/rc-map.h b/include/media/rc-map.h index 4e1409ec2613..17c9759ae77b 100644 --- a/include/media/rc-map.h +++ b/include/media/rc-map.h @@ -18,12 +18,13 @@ #define RC_TYPE_JVC (1 << 3) /* JVC protocol */ #define RC_TYPE_SONY (1 << 4) /* Sony12/15/20 protocol */ #define RC_TYPE_RC5_SZ (1 << 5) /* RC5 variant used by Streamzap */ +#define RC_TYPE_MCE_KBD (1 << 29) /* RC6-ish MCE keyboard/mouse */ #define RC_TYPE_LIRC (1 << 30) /* Pass raw IR to lirc userspace */ #define RC_TYPE_OTHER (1u << 31) #define RC_TYPE_ALL (RC_TYPE_RC5 | RC_TYPE_NEC | RC_TYPE_RC6 | \ RC_TYPE_JVC | RC_TYPE_SONY | RC_TYPE_LIRC | \ - RC_TYPE_RC5_SZ | RC_TYPE_OTHER) + RC_TYPE_RC5_SZ | RC_TYPE_MCE_KBD | RC_TYPE_OTHER) struct rc_map_table { u32 scancode; -- cgit v1.2.3 From 839cf81346b5145f0959b28652612eabaed48d47 Mon Sep 17 00:00:00 2001 From: Tomasz Stanislawski Date: Wed, 2 Mar 2011 13:16:37 -0300 Subject: [media] v4l: add g_tvnorms_output callback to V4L2 subdev Callback is used to acquire TV norms supported by a subdev. It is used to avoid having standards in top-level driver. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Reviewed-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-subdev.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index b05579b4adb7..44a5ddbc9e0f 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -229,6 +229,9 @@ struct v4l2_subdev_audio_ops { s_std_output: set v4l2_std_id for video OUTPUT devices. This is ignored by video input devices. + g_tvnorms_output: get v4l2_std_id with all standards supported by video + OUTPUT device. This is ignored by video input devices. + s_crystal_freq: sets the frequency of the crystal used to generate the clocks in Hz. An extra flags field allows device specific configuration regarding clock frequency dividers, etc. If not used, then set flags @@ -265,6 +268,7 @@ struct v4l2_subdev_video_ops { int (*s_crystal_freq)(struct v4l2_subdev *sd, u32 freq, u32 flags); int (*s_std_output)(struct v4l2_subdev *sd, v4l2_std_id std); int (*querystd)(struct v4l2_subdev *sd, v4l2_std_id *std); + int (*g_tvnorms_output)(struct v4l2_subdev *sd, v4l2_std_id *std); int (*g_input_status)(struct v4l2_subdev *sd, u32 *status); int (*s_stream)(struct v4l2_subdev *sd, int enable); int (*cropcap)(struct v4l2_subdev *sd, struct v4l2_cropcap *cc); -- cgit v1.2.3 From 8b32dd0d3f9221719507700fa396d280143b4da1 Mon Sep 17 00:00:00 2001 From: Tomasz Stanislawski Date: Wed, 29 Jun 2011 07:01:28 -0300 Subject: [media] v4l: add g_dv_preset callback to V4L2 subdev Callback is used to acquire current digital video preset from a subdev. It is used to avoid keeping dv preset in top-level driver. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-subdev.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 44a5ddbc9e0f..3bc7f928c61a 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -246,6 +246,8 @@ struct v4l2_subdev_audio_ops { s_dv_preset: set dv (Digital Video) preset in the sub device. Similar to s_std() + g_dv_preset: get current dv (Digital Video) preset in the sub device. + query_dv_preset: query dv preset in the sub device. This is similar to querystd() @@ -286,6 +288,8 @@ struct v4l2_subdev_video_ops { struct v4l2_dv_enum_preset *preset); int (*s_dv_preset)(struct v4l2_subdev *sd, struct v4l2_dv_preset *preset); + int (*g_dv_preset)(struct v4l2_subdev *sd, + struct v4l2_dv_preset *preset); int (*query_dv_preset)(struct v4l2_subdev *sd, struct v4l2_dv_preset *preset); int (*s_dv_timings)(struct v4l2_subdev *sd, -- cgit v1.2.3 From 5930ab2ba089e05c8de594c36836724f8df7725e Mon Sep 17 00:00:00 2001 From: Tomasz Stanislawski Date: Wed, 29 Jun 2011 07:16:15 -0300 Subject: [media] v4l: add g_std_output callback to V4L2 subdev Callback is used to acquire current analog TV standard from a subdev. It is used to avoid keeping current standard in top-level driver. Signed-off-by: Tomasz Stanislawski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-subdev.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 3bc7f928c61a..9ff0ab9069d7 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -229,6 +229,9 @@ struct v4l2_subdev_audio_ops { s_std_output: set v4l2_std_id for video OUTPUT devices. This is ignored by video input devices. + g_std_output: get current standard for video OUTPUT devices. This is ignored + by video input devices. + g_tvnorms_output: get v4l2_std_id with all standards supported by video OUTPUT device. This is ignored by video input devices. @@ -269,6 +272,7 @@ struct v4l2_subdev_video_ops { int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config); int (*s_crystal_freq)(struct v4l2_subdev *sd, u32 freq, u32 flags); int (*s_std_output)(struct v4l2_subdev *sd, v4l2_std_id std); + int (*g_std_output)(struct v4l2_subdev *sd, v4l2_std_id *std); int (*querystd)(struct v4l2_subdev *sd, v4l2_std_id *std); int (*g_tvnorms_output)(struct v4l2_subdev *sd, v4l2_std_id *std); int (*g_input_status)(struct v4l2_subdev *sd, u32 *status); -- cgit v1.2.3 From 033d7463f816315308ffec6f69576d820bfbab0c Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 29 Jun 2011 07:43:48 -0300 Subject: [media] V4L: soc-camera: remove now unused soc-camera specific PM hooks soc-camera host drivers shall be implementing their PM, using standard kernel methods, soc-camera specific hooks can die. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index 21dd8a41f4c1..70c4ea5ecc31 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -66,8 +66,6 @@ struct soc_camera_host_ops { struct module *owner; int (*add)(struct soc_camera_device *); void (*remove)(struct soc_camera_device *); - int (*suspend)(struct soc_camera_device *, pm_message_t); - int (*resume)(struct soc_camera_device *); /* * .get_formats() is called for each client device format, but * .put_formats() is only called once. Further, if any of the calls to -- cgit v1.2.3 From 91c7953005247c9563408bbdbf35e27de33e6ec3 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 1 Jul 2011 14:31:17 -0300 Subject: [media] V4L: add media bus configuration subdev operations Add media bus configuration types and two subdev operations to get supported mediabus configurations and to set a specific configuration. Subdevs can support several configurations, e.g., they can send video data on 1 or several lanes, can be configured to use a specific CSI-2 channel, in such cases subdevice drivers return bitmasks with all respective bits set. When a set-configuration operation is called, it has to specify a non-ambiguous configuration. Signed-off-by: Stanimir Varbanov Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-mediabus.h | 63 +++++++++++++++++++++++++++++++++++++++++++ include/media/v4l2-subdev.h | 10 +++++++ 2 files changed, 73 insertions(+) (limited to 'include') diff --git a/include/media/v4l2-mediabus.h b/include/media/v4l2-mediabus.h index 971c7fa29614..6114007c8c74 100644 --- a/include/media/v4l2-mediabus.h +++ b/include/media/v4l2-mediabus.h @@ -13,6 +13,69 @@ #include +/* Parallel flags */ +/* + * Can the client run in master or in slave mode. By "Master mode" an operation + * mode is meant, when the client (e.g., a camera sensor) is producing + * horizontal and vertical synchronisation. In "Slave mode" the host is + * providing these signals to the slave. + */ +#define V4L2_MBUS_MASTER (1 << 0) +#define V4L2_MBUS_SLAVE (1 << 1) +/* Which signal polarities it supports */ +/* Note: in BT.656 mode HSYNC and VSYNC are unused */ +#define V4L2_MBUS_HSYNC_ACTIVE_HIGH (1 << 2) +#define V4L2_MBUS_HSYNC_ACTIVE_LOW (1 << 3) +#define V4L2_MBUS_VSYNC_ACTIVE_HIGH (1 << 4) +#define V4L2_MBUS_VSYNC_ACTIVE_LOW (1 << 5) +#define V4L2_MBUS_PCLK_SAMPLE_RISING (1 << 6) +#define V4L2_MBUS_PCLK_SAMPLE_FALLING (1 << 7) +#define V4L2_MBUS_DATA_ACTIVE_HIGH (1 << 8) +#define V4L2_MBUS_DATA_ACTIVE_LOW (1 << 9) + +/* Serial flags */ +/* How many lanes the client can use */ +#define V4L2_MBUS_CSI2_1_LANE (1 << 0) +#define V4L2_MBUS_CSI2_2_LANE (1 << 1) +#define V4L2_MBUS_CSI2_3_LANE (1 << 2) +#define V4L2_MBUS_CSI2_4_LANE (1 << 3) +/* On which channels it can send video data */ +#define V4L2_MBUS_CSI2_CHANNEL_0 (1 << 4) +#define V4L2_MBUS_CSI2_CHANNEL_1 (1 << 5) +#define V4L2_MBUS_CSI2_CHANNEL_2 (1 << 6) +#define V4L2_MBUS_CSI2_CHANNEL_3 (1 << 7) +/* Does it support only continuous or also non-continuous clock mode */ +#define V4L2_MBUS_CSI2_CONTINUOUS_CLOCK (1 << 8) +#define V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK (1 << 9) + +#define V4L2_MBUS_CSI2_LANES (V4L2_MBUS_CSI2_1_LANE | V4L2_MBUS_CSI2_2_LANE | \ + V4L2_MBUS_CSI2_3_LANE | V4L2_MBUS_CSI2_4_LANE) +#define V4L2_MBUS_CSI2_CHANNELS (V4L2_MBUS_CSI2_CHANNEL_0 | V4L2_MBUS_CSI2_CHANNEL_1 | \ + V4L2_MBUS_CSI2_CHANNEL_2 | V4L2_MBUS_CSI2_CHANNEL_3) + +/** + * v4l2_mbus_type - media bus type + * @V4L2_MBUS_PARALLEL: parallel interface with hsync and vsync + * @V4L2_MBUS_BT656: parallel interface with embedded synchronisation, can + * also be used for BT.1120 + * @V4L2_MBUS_CSI2: MIPI CSI-2 serial interface + */ +enum v4l2_mbus_type { + V4L2_MBUS_PARALLEL, + V4L2_MBUS_BT656, + V4L2_MBUS_CSI2, +}; + +/** + * v4l2_mbus_config - media bus configuration + * @type: in: interface type + * @flags: in / out: configuration flags, depending on @type + */ +struct v4l2_mbus_config { + enum v4l2_mbus_type type; + unsigned int flags; +}; + static inline void v4l2_fill_pix_format(struct v4l2_pix_format *pix_fmt, const struct v4l2_mbus_framefmt *mbus_fmt) { diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index 9ff0ab9069d7..257da1a30f66 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -267,6 +267,12 @@ struct v4l2_subdev_audio_ops { try_mbus_fmt: try to set a pixel format on a video data source s_mbus_fmt: set a pixel format on a video data source + + g_mbus_config: get supported mediabus configurations + + s_mbus_config: set a certain mediabus configuration. This operation is added + for compatibility with soc-camera drivers and should not be used by new + software. */ struct v4l2_subdev_video_ops { int (*s_routing)(struct v4l2_subdev *sd, u32 input, u32 output, u32 config); @@ -310,6 +316,10 @@ struct v4l2_subdev_video_ops { struct v4l2_mbus_framefmt *fmt); int (*s_mbus_fmt)(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *fmt); + int (*g_mbus_config)(struct v4l2_subdev *sd, + struct v4l2_mbus_config *cfg); + int (*s_mbus_config)(struct v4l2_subdev *sd, + const struct v4l2_mbus_config *cfg); }; /* -- cgit v1.2.3 From 6b526fed0e688e3926bd43a09f2f36cba3983ce2 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 1 Jul 2011 11:19:58 -0300 Subject: [media] V4L: sh_mobile_csi2: switch away from using the soc-camera bus notifier This moves us one more step closer to eliminating the soc-camera bus and devices on it. Besides, as a side effect, CSI-2 runtime PM on sh-mobile secomes finer grained now: we only have to power on the interface, when the device nodes are open. Signed-off-by: Guennadi Liakhovetski Acked-by: Paul Mundt Signed-off-by: Mauro Carvalho Chehab --- include/media/sh_mobile_ceu.h | 10 +++++++++- include/media/sh_mobile_csi2.h | 8 +++++--- 2 files changed, 14 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/media/sh_mobile_ceu.h b/include/media/sh_mobile_ceu.h index 80346a6d28a9..48413b410f15 100644 --- a/include/media/sh_mobile_ceu.h +++ b/include/media/sh_mobile_ceu.h @@ -7,10 +7,18 @@ #define SH_CEU_FLAG_VSYNC_LOW (1 << 3) /* default High if possible */ struct device; +struct resource; + +struct sh_mobile_ceu_companion { + u32 num_resources; + struct resource *resource; + int id; + void *platform_data; +}; struct sh_mobile_ceu_info { unsigned long flags; - struct device *csi2_dev; + struct sh_mobile_ceu_companion *csi2; }; #endif /* __ASM_SH_MOBILE_CEU_H__ */ diff --git a/include/media/sh_mobile_csi2.h b/include/media/sh_mobile_csi2.h index 4d2615174461..c586c4f7f16b 100644 --- a/include/media/sh_mobile_csi2.h +++ b/include/media/sh_mobile_csi2.h @@ -11,6 +11,8 @@ #ifndef SH_MIPI_CSI #define SH_MIPI_CSI +#include + enum sh_csi2_phy { SH_CSI2_PHY_MAIN, SH_CSI2_PHY_SUB, @@ -33,14 +35,14 @@ struct sh_csi2_client_config { struct platform_device *pdev; /* client platform device */ }; +struct v4l2_device; + struct sh_csi2_pdata { enum sh_csi2_type type; unsigned int flags; struct sh_csi2_client_config *clients; int num_clients; + struct v4l2_device *v4l2_dev; }; -struct device; -struct v4l2_device; - #endif -- cgit v1.2.3 From d33b290a149dafe2e3cc2901ec726bea09a2c0f4 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 1 Jul 2011 11:31:35 -0300 Subject: [media] V4L: soc-camera: un-export the soc-camera bus The soc-camera bus is now completely local again. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index 70c4ea5ecc31..c31d55be3e17 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -20,12 +20,10 @@ #include #include -extern struct bus_type soc_camera_bus_type; - struct file; struct soc_camera_device { - struct list_head list; + struct list_head list; /* list of all registered devices */ struct device dev; struct device *pdev; /* Platform device */ s32 user_width; @@ -126,8 +124,8 @@ struct soc_camera_link { int num_regulators; /* - * For non-I2C devices platform platform has to provide methods to - * add a device to the system and to remove + * For non-I2C devices platform has to provide methods to add a device + * to the system and to remove it */ int (*add_device)(struct soc_camera_link *, struct device *); void (*del_device)(struct soc_camera_link *); -- cgit v1.2.3 From 7dfff95366f48bf66f77c17cdc9ebd8be696ac5d Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 15 Jul 2011 20:03:38 -0300 Subject: [media] V4L: soc-camera: remove soc-camera bus and devices on it Now that v4l2 subdevices have got their own device objects, having one more device in soc-camera clients became redundant and confusing. This patch removes those devices and the soc-camera bus, they used to reside on. Signed-off-by: Guennadi Liakhovetski Acked-by: Paul Mundt Signed-off-by: Mauro Carvalho Chehab --- include/media/soc_camera.h | 19 ++++++++----------- include/media/soc_camera_platform.h | 15 +++++++-------- 2 files changed, 15 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h index c31d55be3e17..7582952dceae 100644 --- a/include/media/soc_camera.h +++ b/include/media/soc_camera.h @@ -21,11 +21,14 @@ #include struct file; +struct soc_camera_link; struct soc_camera_device { struct list_head list; /* list of all registered devices */ - struct device dev; + struct soc_camera_link *link; struct device *pdev; /* Platform device */ + struct device *parent; /* Camera host device */ + struct device *control; /* E.g., the i2c client */ s32 user_width; s32 user_height; u32 bytesperline; /* for padding, zero if unused */ @@ -127,8 +130,8 @@ struct soc_camera_link { * For non-I2C devices platform has to provide methods to add a device * to the system and to remove it */ - int (*add_device)(struct soc_camera_link *, struct device *); - void (*del_device)(struct soc_camera_link *); + int (*add_device)(struct soc_camera_device *); + void (*del_device)(struct soc_camera_device *); /* Optional callbacks to power on or off and reset the sensor */ int (*power)(struct device *, int); int (*reset)(struct device *); @@ -142,12 +145,6 @@ struct soc_camera_link { void (*free_bus)(struct soc_camera_link *); }; -static inline struct soc_camera_device *to_soc_camera_dev( - const struct device *dev) -{ - return container_of(dev, struct soc_camera_device, dev); -} - static inline struct soc_camera_host *to_soc_camera_host( const struct device *dev) { @@ -159,13 +156,13 @@ static inline struct soc_camera_host *to_soc_camera_host( static inline struct soc_camera_link *to_soc_camera_link( const struct soc_camera_device *icd) { - return icd->dev.platform_data; + return icd->link; } static inline struct device *to_soc_camera_control( const struct soc_camera_device *icd) { - return dev_get_drvdata(&icd->dev); + return icd->control; } static inline struct v4l2_subdev *soc_camera_to_subdev( diff --git a/include/media/soc_camera_platform.h b/include/media/soc_camera_platform.h index 6d7a4fd00fc0..74f0fa15ca47 100644 --- a/include/media/soc_camera_platform.h +++ b/include/media/soc_camera_platform.h @@ -21,7 +21,7 @@ struct soc_camera_platform_info { unsigned long format_depth; struct v4l2_mbus_framefmt format; unsigned long bus_param; - struct device *dev; + struct soc_camera_device *icd; int (*set_capture)(struct soc_camera_platform_info *info, int enable); }; @@ -30,8 +30,7 @@ static inline void soc_camera_platform_release(struct platform_device **pdev) *pdev = NULL; } -static inline int soc_camera_platform_add(const struct soc_camera_link *icl, - struct device *dev, +static inline int soc_camera_platform_add(struct soc_camera_device *icd, struct platform_device **pdev, struct soc_camera_link *plink, void (*release)(struct device *dev), @@ -40,7 +39,7 @@ static inline int soc_camera_platform_add(const struct soc_camera_link *icl, struct soc_camera_platform_info *info = plink->priv; int ret; - if (icl != plink) + if (icd->link != plink) return -ENODEV; if (*pdev) @@ -50,7 +49,7 @@ static inline int soc_camera_platform_add(const struct soc_camera_link *icl, if (!*pdev) return -ENOMEM; - info->dev = dev; + info->icd = icd; (*pdev)->dev.platform_data = info; (*pdev)->dev.release = release; @@ -59,17 +58,17 @@ static inline int soc_camera_platform_add(const struct soc_camera_link *icl, if (ret < 0) { platform_device_put(*pdev); *pdev = NULL; - info->dev = NULL; + info->icd = NULL; } return ret; } -static inline void soc_camera_platform_del(const struct soc_camera_link *icl, +static inline void soc_camera_platform_del(const struct soc_camera_device *icd, struct platform_device *pdev, const struct soc_camera_link *plink) { - if (icl != plink || !pdev) + if (icd->link != plink || !pdev) return; platform_device_unregister(pdev); -- cgit v1.2.3 From b52a851d9182e8a20704152d537c7e19ed34cc99 Mon Sep 17 00:00:00 2001 From: Bastian Hecht Date: Fri, 24 Jun 2011 07:57:36 -0300 Subject: [media] V4L: initial driver for ov5642 CMOS sensor This is an initial driver release for the Omnivision 5642 CMOS sensor. Signed-off-by: Bastian Hecht Signed-off-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- include/media/v4l2-chip-ident.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/media/v4l2-chip-ident.h b/include/media/v4l2-chip-ident.h index 8717045e4aec..63fd9d3db296 100644 --- a/include/media/v4l2-chip-ident.h +++ b/include/media/v4l2-chip-ident.h @@ -76,6 +76,7 @@ enum { V4L2_IDENT_OV6650 = 258, V4L2_IDENT_OV2640 = 259, V4L2_IDENT_OV9740 = 260, + V4L2_IDENT_OV5642 = 261, /* module saa7146: reserved range 300-309 */ V4L2_IDENT_SAA7146 = 300, -- cgit v1.2.3 From 2699b67223aca6b1450fc2f72e40fada952afc85 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Thu, 28 Jul 2011 11:31:47 +1000 Subject: md: load/store badblock list from v1.x metadata Space must have been allocated when array was created. A feature flag is set when the badblock list is non-empty, to ensure old kernels don't load and trust the whole device. We only update the on-disk badblocklist when it has changed. If the badblocklist (or other metadata) is stored on a bad block, we don't cope very well. If metadata has no room for bad block, flag bad-blocks as disabled, and do the same for 0.90 metadata. Signed-off-by: NeilBrown --- include/linux/raid/md_p.h | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/linux/raid/md_p.h b/include/linux/raid/md_p.h index 75cbf4f62fe8..9e65d9e20662 100644 --- a/include/linux/raid/md_p.h +++ b/include/linux/raid/md_p.h @@ -245,10 +245,16 @@ struct mdp_superblock_1 { __u8 device_uuid[16]; /* user-space setable, ignored by kernel */ __u8 devflags; /* per-device flags. Only one defined...*/ #define WriteMostly1 1 /* mask for writemostly flag in above */ - __u8 pad2[64-57]; /* set to 0 when writing */ + /* Bad block log. If there are any bad blocks the feature flag is set. + * If offset and size are non-zero, that space is reserved and available + */ + __u8 bblog_shift; /* shift from sectors to block size */ + __le16 bblog_size; /* number of sectors reserved for list */ + __le32 bblog_offset; /* sector offset from superblock to bblog, + * signed - not unsigned */ /* array state information - 64 bytes */ - __le64 utime; /* 40 bits second, 24 btes microseconds */ + __le64 utime; /* 40 bits second, 24 bits microseconds */ __le64 events; /* incremented when superblock updated */ __le64 resync_offset; /* data before this offset (from data_offset) known to be in sync */ __le32 sb_csum; /* checksum up to devs[max_dev] */ @@ -270,8 +276,8 @@ struct mdp_superblock_1 { * must be honoured */ #define MD_FEATURE_RESHAPE_ACTIVE 4 +#define MD_FEATURE_BAD_BLOCKS 8 /* badblock list is not empty */ -#define MD_FEATURE_ALL (1|2|4) +#define MD_FEATURE_ALL (1|2|4|8) #endif - -- cgit v1.2.3 From d8873315065f1f527c7c380402cf59b1e1d0ae36 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Tue, 26 Jul 2011 06:05:37 +0000 Subject: net: add IFF_SKB_TX_SHARED flag to priv_flags Pktgen attempts to transmit shared skbs to net devices, which can't be used by some drivers as they keep state information in skbs. This patch adds a flag marking drivers as being able to handle shared skbs in their tx path. Drivers are defaulted to being unable to do so, but calling ether_setup enables this flag, as 90% of the drivers calling ether_setup touch real hardware and can handle shared skbs. A subsequent patch will audit drivers to ensure that the flag is set properly Signed-off-by: Neil Horman Reported-by: Jiri Pirko CC: Robert Olsson CC: Eric Dumazet CC: Alexey Dobriyan CC: David S. Miller Signed-off-by: David S. Miller --- include/linux/if.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/if.h b/include/linux/if.h index 3bc63e6a02f7..03489ca92ded 100644 --- a/include/linux/if.h +++ b/include/linux/if.h @@ -76,6 +76,8 @@ #define IFF_BRIDGE_PORT 0x4000 /* device used as bridge port */ #define IFF_OVS_DATAPATH 0x8000 /* device used as Open vSwitch * datapath port */ +#define IFF_TX_SKB_SHARING 0x10000 /* The interface supports sharing + * skbs on transmit */ #define IF_GET_IFACE 0x0001 /* for querying only */ #define IF_GET_PROTO 0x0002 -- cgit v1.2.3 From f22aaaa70d8c24e5dc7d23a219c4beace8354b65 Mon Sep 17 00:00:00 2001 From: Donggeun Kim Date: Mon, 20 Jun 2011 16:48:19 +0900 Subject: hwmon: Driver for NTC Thermistors Add support for NTC Thermistor series. In this release, the following thermistors are supported: NCP15WB473, NCP18WB473, NCP03WB473, and NCP15WL333. This driver is based on the datasheet of MURATA. The driver in the patch does conversion from the raw ADC value (either voltage or resistence) to temperature. In order to use voltage values as input, the circuit schematics should be provided with the platform data. A compensation table for each type of thermistor is provided for the conversion. Signed-off-by: Donggeun Kim Signed-off-by: MyungJoo Ham Signed-off-by: KyungMin Park Reviewed-by: Shubhrajyoti D Signed-off-by: Guenter Roeck --- include/linux/platform_data/ntc_thermistor.h | 53 ++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 include/linux/platform_data/ntc_thermistor.h (limited to 'include') diff --git a/include/linux/platform_data/ntc_thermistor.h b/include/linux/platform_data/ntc_thermistor.h new file mode 100644 index 000000000000..abd286215279 --- /dev/null +++ b/include/linux/platform_data/ntc_thermistor.h @@ -0,0 +1,53 @@ +/* + * ntc_thermistor.h - NTC Thermistors + * + * Copyright (C) 2010 Samsung Electronics + * MyungJoo Ham + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef _LINUX_NTC_H +#define _LINUX_NTC_H + +enum ntc_thermistor_type { + TYPE_NCPXXWB473, + TYPE_NCPXXWL333, +}; + +struct ntc_thermistor_platform_data { + /* + * One (not both) of read_uV and read_ohm should be provided and only + * one of the two should be provided. + * Both functions should return negative value for an error case. + * + * pullup_uV, pullup_ohm, pulldown_ohm, and connect are required to use + * read_uV() + * + * How to setup pullup_ohm, pulldown_ohm, and connect is + * described at Documentation/hwmon/ntc + * + * pullup/down_ohm: 0 for infinite / not-connected + */ + int (*read_uV)(void); + unsigned int pullup_uV; + + unsigned int pullup_ohm; + unsigned int pulldown_ohm; + enum { NTC_CONNECTED_POSITIVE, NTC_CONNECTED_GROUND } connect; + + int (*read_ohm)(void); +}; + +#endif /* _LINUX_NTC_H */ -- cgit v1.2.3 From 08a543ad33fc188650801bd36eed4ffe272643e1 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 26 Jul 2011 03:19:06 -0600 Subject: irq: add irq_domain translation infrastructure This patch adds irq_domain infrastructure for translating from hardware irq numbers to linux irqs. This is particularly important for architectures adding device tree support because the current implementation (excluding PowerPC and SPARC) cannot handle translation for more than a single interrupt controller. irq_domain supports device tree translation for any number of interrupt controllers. This patch converts x86, Microblaze, ARM and MIPS to use irq_domain for device tree irq translation. x86 is untested beyond compiling it, irq_domain is enabled for MIPS and Microblaze, but the old behaviour is preserved until the core code is modified to actually register an irq_domain yet. On ARM it works and is required for much of the new ARM device tree board support. PowerPC has /not/ been converted to use this new infrastructure. It is still missing some features before it can replace the virq infrastructure already in powerpc (see documentation on irq_domain_map/unmap for details). Followup patches will add the missing pieces and migrate PowerPC to use irq_domain. SPARC has its own method of managing interrupts from the device tree and is unaffected by this change. Acked-by: Ralf Baechle Signed-off-by: Grant Likely --- include/linux/irq.h | 6 ++++ include/linux/irqdomain.h | 81 +++++++++++++++++++++++++++++++++++++++++++++++ include/linux/of_irq.h | 4 +++ 3 files changed, 91 insertions(+) create mode 100644 include/linux/irqdomain.h (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index 5f695041090c..87a06f345bd2 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -108,14 +108,18 @@ enum { }; struct msi_desc; +struct irq_domain; /** * struct irq_data - per irq and irq chip data passed down to chip functions * @irq: interrupt number + * @hwirq: hardware interrupt number, local to the interrupt domain * @node: node index useful for balancing * @state_use_accessors: status information for irq chip functions. * Use accessor functions to deal with it * @chip: low level interrupt hardware access + * @domain: Interrupt translation domain; responsible for mapping + * between hwirq number and linux irq number. * @handler_data: per-IRQ data for the irq_chip methods * @chip_data: platform-specific per-chip private data for the chip * methods, to allow shared chip implementations @@ -128,9 +132,11 @@ struct msi_desc; */ struct irq_data { unsigned int irq; + unsigned long hwirq; unsigned int node; unsigned int state_use_accessors; struct irq_chip *chip; + struct irq_domain *domain; void *handler_data; void *chip_data; struct msi_desc *msi_desc; diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h new file mode 100644 index 000000000000..8f2c10a784a4 --- /dev/null +++ b/include/linux/irqdomain.h @@ -0,0 +1,81 @@ +/* + * irq_domain - IRQ translation domains + * + * Translation infrastructure between hw and linux irq numbers. This is + * helpful for interrupt controllers to implement mapping between hardware + * irq numbers and the Linux irq number space. + * + * irq_domains also have a hook for translating device tree interrupt + * representation into a hardware irq number that can be mapped back to a + * Linux irq number without any extra platform support code. + * + * irq_domain is expected to be embedded in an interrupt controller's private + * data structure. + */ +#ifndef _LINUX_IRQDOMAIN_H +#define _LINUX_IRQDOMAIN_H + +#include + +#ifdef CONFIG_IRQ_DOMAIN +struct device_node; +struct irq_domain; + +/** + * struct irq_domain_ops - Methods for irq_domain objects + * @to_irq: (optional) given a local hardware irq number, return the linux + * irq number. If to_irq is not implemented, then the irq_domain + * will use this translation: irq = (domain->irq_base + hwirq) + * @dt_translate: Given a device tree node and interrupt specifier, decode + * the hardware irq number and linux irq type value. + */ +struct irq_domain_ops { + unsigned int (*to_irq)(struct irq_domain *d, unsigned long hwirq); + +#ifdef CONFIG_OF + int (*dt_translate)(struct irq_domain *d, struct device_node *node, + const u32 *intspec, unsigned int intsize, + unsigned long *out_hwirq, unsigned int *out_type); +#endif /* CONFIG_OF */ +}; + +/** + * struct irq_domain - Hardware interrupt number translation object + * @list: Element in global irq_domain list. + * @irq_base: Start of irq_desc range assigned to the irq_domain. The creator + * of the irq_domain is responsible for allocating the array of + * irq_desc structures. + * @nr_irq: Number of irqs managed by the irq domain + * @ops: pointer to irq_domain methods + * @priv: private data pointer for use by owner. Not touched by irq_domain + * core code. + * @of_node: (optional) Pointer to device tree nodes associated with the + * irq_domain. Used when decoding device tree interrupt specifiers. + */ +struct irq_domain { + struct list_head list; + unsigned int irq_base; + unsigned int nr_irq; + const struct irq_domain_ops *ops; + void *priv; + struct device_node *of_node; +}; + +/** + * irq_domain_to_irq() - Translate from a hardware irq to a linux irq number + * + * Returns the linux irq number associated with a hardware irq. By default, + * the mapping is irq == domain->irq_base + hwirq, but this mapping can + * be overridden if the irq_domain implements a .to_irq() hook. + */ +static inline unsigned int irq_domain_to_irq(struct irq_domain *d, + unsigned long hwirq) +{ + return d->ops->to_irq ? d->ops->to_irq(d, hwirq) : d->irq_base + hwirq; +} + +extern void irq_domain_add(struct irq_domain *domain); +extern void irq_domain_del(struct irq_domain *domain); +#endif /* CONFIG_IRQ_DOMAIN */ + +#endif /* _LINUX_IRQDOMAIN_H */ diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h index e6955f5d1f08..cd2e61ce4e83 100644 --- a/include/linux/of_irq.h +++ b/include/linux/of_irq.h @@ -63,6 +63,9 @@ extern int of_irq_map_one(struct device_node *device, int index, extern unsigned int irq_create_of_mapping(struct device_node *controller, const u32 *intspec, unsigned int intsize); +#ifdef CONFIG_IRQ_DOMAIN +extern void irq_dispose_mapping(unsigned int irq); +#endif extern int of_irq_to_resource(struct device_node *dev, int index, struct resource *r); extern int of_irq_count(struct device_node *dev); @@ -70,6 +73,7 @@ extern int of_irq_to_resource_table(struct device_node *dev, struct resource *res, int nr_irqs); extern struct device_node *of_irq_find_parent(struct device_node *child); + #endif /* CONFIG_OF_IRQ */ #endif /* CONFIG_OF */ #endif /* __OF_IRQ_H */ -- cgit v1.2.3 From 7e71330169d8056536b299290544980bccc6b300 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 26 Jul 2011 03:19:06 -0600 Subject: dt/irq: add irq_domain_generate_simple() helper irq_domain_generate_simple() is an easy way to generate an irq translation domain for simple irq controllers. It assumes a flat 1:1 mapping from hardware irq number to an offset of the first linux irq number assigned to the controller Signed-off-by: Grant Likely --- include/linux/irqdomain.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index 8f2c10a784a4..e807ad687a07 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -16,6 +16,7 @@ #define _LINUX_IRQDOMAIN_H #include +#include #ifdef CONFIG_IRQ_DOMAIN struct device_node; @@ -78,4 +79,13 @@ extern void irq_domain_add(struct irq_domain *domain); extern void irq_domain_del(struct irq_domain *domain); #endif /* CONFIG_IRQ_DOMAIN */ +#if defined(CONFIG_IRQ_DOMAIN) && defined(CONFIG_OF_IRQ) +extern void irq_domain_add_simple(struct device_node *controller, int irq_base); +extern void irq_domain_generate_simple(const struct of_device_id *match, + u64 phys_base, unsigned int irq_start); +#else /* CONFIG_IRQ_DOMAIN && CONFIG_OF_IRQ */ +static inline void irq_domain_generate_simple(const struct of_device_id *match, + u64 phys_base, unsigned int irq_start) { } +#endif /* CONFIG_IRQ_DOMAIN && CONFIG_OF_IRQ */ + #endif /* _LINUX_IRQDOMAIN_H */ -- cgit v1.2.3 From 43316044d4f64da008d6aca7d4b60771b9a24eb8 Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Fri, 22 Jul 2011 18:55:18 +0000 Subject: watchdog: WatchDog Timer Driver Core - Add basic framework The WatchDog Timer Driver Core is a framework that contains the common code for all watchdog-driver's. It also introduces a watchdog device structure and the operations that go with it. This is the introduction of this framework. This part supports the minimal watchdog userspace API (or with other words: the functionality to use /dev/watchdog's open, release and write functionality as defined in the simplest watchdog API). Extra functionality will follow in the next set of patches. Signed-off-by: Alan Cox Signed-off-by: Wim Van Sebroeck Acked-by: Arnd Bergmann Acked-by: Wolfram Sang --- include/linux/watchdog.h | 61 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) (limited to 'include') diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index 011bcfeb9f09..5ab31bfd2906 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -59,6 +59,67 @@ struct watchdog_info { #define WATCHDOG_NOWAYOUT 0 #endif +struct watchdog_ops; +struct watchdog_device; + +/** struct watchdog_ops - The watchdog-devices operations + * + * @owner: The module owner. + * @start: The routine for starting the watchdog device. + * @stop: The routine for stopping the watchdog device. + * @ping: The routine that sends a keepalive ping to the watchdog device. + * + * The watchdog_ops structure contains a list of low-level operations + * that control a watchdog device. It also contains the module that owns + * these operations. The start and stop function are mandatory, all other + * functions are optonal. + */ +struct watchdog_ops { + struct module *owner; + /* mandatory operations */ + int (*start)(struct watchdog_device *); + int (*stop)(struct watchdog_device *); + /* optional operations */ + int (*ping)(struct watchdog_device *); +}; + +/** struct watchdog_device - The structure that defines a watchdog device + * + * @info: Pointer to a watchdog_info structure. + * @ops: Pointer to the list of watchdog operations. + * @driver-data:Pointer to the drivers private data. + * @status: Field that contains the devices internal status bits. + * + * The watchdog_device structure contains all information about a + * watchdog timer device. + * + * The driver-data field may not be accessed directly. It must be accessed + * via the watchdog_set_drvdata and watchdog_get_drvdata helpers. + */ +struct watchdog_device { + const struct watchdog_info *info; + const struct watchdog_ops *ops; + void *driver_data; + unsigned long status; +/* Bit numbers for status flags */ +#define WDOG_DEV_OPEN 1 /* Opened via /dev/watchdog ? */ +}; + +/* Use the following functions to manipulate watchdog driver specific data */ +static inline void watchdog_set_drvdata(struct watchdog_device *wdd, void *data) +{ + wdd->driver_data = data; +} + +static inline void *watchdog_get_drvdata(struct watchdog_device *wdd) +{ + return wdd->driver_data; +} + +/* drivers/watchdog/core/watchdog_core.c */ +extern int watchdog_register_device(struct watchdog_device *); +extern void watchdog_unregister_device(struct watchdog_device *); + #endif /* __KERNEL__ */ #endif /* ifndef _LINUX_WATCHDOG_H */ -- cgit v1.2.3 From 2fa03560ab3a6dd83cad9bfd5692179fc2ceabb3 Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Fri, 22 Jul 2011 18:56:38 +0000 Subject: watchdog: WatchDog Timer Driver Core - Add basic ioctl functionality This part add's the basic ioctl functionality to the WatchDog Timer Driver Core framework. The supported ioctl call's are: WDIOC_GETSUPPORT WDIOC_GETSTATUS WDIOC_GETBOOTSTATUS Signed-off-by: Alan Cox Signed-off-by: Wim Van Sebroeck Acked-by: Arnd Bergmann Acked-by: Wolfram Sang --- include/linux/watchdog.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index 5ab31bfd2906..29ff80807dd4 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -68,6 +68,7 @@ struct watchdog_device; * @start: The routine for starting the watchdog device. * @stop: The routine for stopping the watchdog device. * @ping: The routine that sends a keepalive ping to the watchdog device. + * @status: The routine that shows the status of the watchdog device. * * The watchdog_ops structure contains a list of low-level operations * that control a watchdog device. It also contains the module that owns @@ -81,12 +82,14 @@ struct watchdog_ops { int (*stop)(struct watchdog_device *); /* optional operations */ int (*ping)(struct watchdog_device *); + unsigned int (*status)(struct watchdog_device *); }; /** struct watchdog_device - The structure that defines a watchdog device * * @info: Pointer to a watchdog_info structure. * @ops: Pointer to the list of watchdog operations. + * @bootstatus: Status of the watchdog device at boot. * @driver-data:Pointer to the drivers private data. * @status: Field that contains the devices internal status bits. * @@ -99,6 +102,7 @@ struct watchdog_ops { struct watchdog_device { const struct watchdog_info *info; const struct watchdog_ops *ops; + unsigned int bootstatus; void *driver_data; unsigned long status; /* Bit numbers for status flags */ -- cgit v1.2.3 From 234445b4e4542f3e0f216459245ab369a18adcf2 Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Fri, 22 Jul 2011 18:57:55 +0000 Subject: watchdog: WatchDog Timer Driver Core - Add WDIOC_SETOPTIONS ioctl This part add's the WDIOC_SETOPTIONS ioctl functionality to the WatchDog Timer Driver Core framework. Signed-off-by: Alan Cox Signed-off-by: Wim Van Sebroeck Acked-by: Arnd Bergmann Acked-by: Wolfram Sang --- include/linux/watchdog.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index 29ff80807dd4..db46fe89563e 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -106,6 +106,7 @@ struct watchdog_device { void *driver_data; unsigned long status; /* Bit numbers for status flags */ +#define WDOG_ACTIVE 0 /* Is the watchdog running/active */ #define WDOG_DEV_OPEN 1 /* Opened via /dev/watchdog ? */ }; -- cgit v1.2.3 From 014d694e5d59e4219803cd14deaae496d86e4910 Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Fri, 22 Jul 2011 18:58:21 +0000 Subject: watchdog: WatchDog Timer Driver Core - Add WDIOC_SETTIMEOUT and WDIOC_GETTIMEOUT ioctl This part add's the WDIOC_SETTIMEOUT and WDIOC_GETTIMEOUT ioctl functionality to the WatchDog Timer Driver Core framework. Signed-off-by: Alan Cox Signed-off-by: Wim Van Sebroeck Acked-by: Arnd Bergmann Acked-by: Wolfram Sang --- include/linux/watchdog.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index db46fe89563e..9f33efe199d1 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -69,6 +69,7 @@ struct watchdog_device; * @stop: The routine for stopping the watchdog device. * @ping: The routine that sends a keepalive ping to the watchdog device. * @status: The routine that shows the status of the watchdog device. + * @set_timeout:The routine for setting the watchdog devices timeout value. * * The watchdog_ops structure contains a list of low-level operations * that control a watchdog device. It also contains the module that owns @@ -83,6 +84,7 @@ struct watchdog_ops { /* optional operations */ int (*ping)(struct watchdog_device *); unsigned int (*status)(struct watchdog_device *); + int (*set_timeout)(struct watchdog_device *, unsigned int); }; /** struct watchdog_device - The structure that defines a watchdog device @@ -90,6 +92,7 @@ struct watchdog_ops { * @info: Pointer to a watchdog_info structure. * @ops: Pointer to the list of watchdog operations. * @bootstatus: Status of the watchdog device at boot. + * @timeout: The watchdog devices timeout value. * @driver-data:Pointer to the drivers private data. * @status: Field that contains the devices internal status bits. * @@ -103,6 +106,7 @@ struct watchdog_device { const struct watchdog_info *info; const struct watchdog_ops *ops; unsigned int bootstatus; + unsigned int timeout; void *driver_data; unsigned long status; /* Bit numbers for status flags */ -- cgit v1.2.3 From 017cf0805105496ab1880e236cb3e4bf156fb915 Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Fri, 22 Jul 2011 18:58:54 +0000 Subject: watchdog: WatchDog Timer Driver Core - Add Magic Close feature Add support for the Magic Close feature to the WatchDog Timer Driver Core framework. Signed-off-by: Alan Cox Signed-off-by: Wim Van Sebroeck Acked-by: Arnd Bergmann Acked-by: Wolfram Sang --- include/linux/watchdog.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index 9f33efe199d1..e9881ca2452b 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -112,6 +112,7 @@ struct watchdog_device { /* Bit numbers for status flags */ #define WDOG_ACTIVE 0 /* Is the watchdog running/active */ #define WDOG_DEV_OPEN 1 /* Opened via /dev/watchdog ? */ +#define WDOG_ALLOW_RELEASE 2 /* Did we receive the magic char ? */ }; /* Use the following functions to manipulate watchdog driver specific data */ -- cgit v1.2.3 From 7e192b9c4234d29bdc20ac8d0a67edf7624b4206 Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Fri, 22 Jul 2011 18:59:17 +0000 Subject: watchdog: WatchDog Timer Driver Core - Add nowayout feature Add support for the nowayout feature to the WatchDog Timer Driver Core framework. This feature prevents the watchdog timer from being stopped. Signed-off-by: Alan Cox Signed-off-by: Wim Van Sebroeck Acked-by: Arnd Bergmann Acked-by: Wolfram Sang --- include/linux/watchdog.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index e9881ca2452b..f719883c5141 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -113,6 +113,7 @@ struct watchdog_device { #define WDOG_ACTIVE 0 /* Is the watchdog running/active */ #define WDOG_DEV_OPEN 1 /* Opened via /dev/watchdog ? */ #define WDOG_ALLOW_RELEASE 2 /* Did we receive the magic char ? */ +#define WDOG_NO_WAY_OUT 3 /* Is 'nowayout' feature set ? */ }; /* Use the following functions to manipulate watchdog driver specific data */ -- cgit v1.2.3 From 78d88fc01202b088573c962e2885556a5e99bf74 Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Fri, 22 Jul 2011 18:59:49 +0000 Subject: watchdog: WatchDog Timer Driver Core - Add ioctl call Add support for extra ioctl calls by adding a ioctl watchdog operation. This operation will be called before we do our own handling of ioctl commands. This way we can override the internal ioctl command handling and we can also add extra ioctl commands. The ioctl watchdog operation should return the appropriate error codes or -ENOIOCTLCMD if the ioctl command should be handled through the internal ioctl handling of the framework. Signed-off-by: Alan Cox Signed-off-by: Wim Van Sebroeck Acked-by: Arnd Bergmann Acked-by: Wolfram Sang --- include/linux/watchdog.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index f719883c5141..325d90b6641b 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -70,6 +70,7 @@ struct watchdog_device; * @ping: The routine that sends a keepalive ping to the watchdog device. * @status: The routine that shows the status of the watchdog device. * @set_timeout:The routine for setting the watchdog devices timeout value. + * @ioctl: The routines that handles extra ioctl calls. * * The watchdog_ops structure contains a list of low-level operations * that control a watchdog device. It also contains the module that owns @@ -85,6 +86,7 @@ struct watchdog_ops { int (*ping)(struct watchdog_device *); unsigned int (*status)(struct watchdog_device *); int (*set_timeout)(struct watchdog_device *, unsigned int); + long (*ioctl)(struct watchdog_device *, unsigned int, unsigned long); }; /** struct watchdog_device - The structure that defines a watchdog device -- cgit v1.2.3 From 3f43f68e29f1dcb853d70280c7412fc0ef9a0da6 Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Fri, 22 Jul 2011 19:00:16 +0000 Subject: watchdog: WatchDog Timer Driver Core - Add minimum and max timeout Add min_timeout (minimum timeout) and max_timeout values so that the framework can check if the new timeout value is between the minimum and maximum timeout values. If both values are 0, then the framework will leave the check for the watchdog device driver itself. Signed-off-by: Alan Cox Signed-off-by: Wim Van Sebroeck Acked-by: Arnd Bergmann Acked-by: Wolfram Sang --- include/linux/watchdog.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index 325d90b6641b..111843f88b2a 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -95,6 +95,8 @@ struct watchdog_ops { * @ops: Pointer to the list of watchdog operations. * @bootstatus: Status of the watchdog device at boot. * @timeout: The watchdog devices timeout value. + * @min_timeout:The watchdog devices minimum timeout value. + * @max_timeout:The watchdog devices maximum timeout value. * @driver-data:Pointer to the drivers private data. * @status: Field that contains the devices internal status bits. * @@ -109,6 +111,8 @@ struct watchdog_device { const struct watchdog_ops *ops; unsigned int bootstatus; unsigned int timeout; + unsigned int min_timeout; + unsigned int max_timeout; void *driver_data; unsigned long status; /* Bit numbers for status flags */ -- cgit v1.2.3 From 302ff541d981e58cd455fdbd6a90bd74d0f2109b Mon Sep 17 00:00:00 2001 From: Yi Zou Date: Wed, 27 Jul 2011 15:10:23 -0700 Subject: [SCSI] fcoe: remove unused ptype field in fcoe_rcv_info There is no need to cache the ptype in fcoe_rcv_info struct as it is never used anywhere. Signed-off-by: Yi Zou Tested-by: Ross Brattain Signed-off-by: Robert Love Signed-off-by: James Bottomley --- include/scsi/fc_frame.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/scsi/fc_frame.h b/include/scsi/fc_frame.h index 4ad02041b667..8225d8063ec4 100644 --- a/include/scsi/fc_frame.h +++ b/include/scsi/fc_frame.h @@ -78,7 +78,6 @@ struct fc_frame { }; struct fcoe_rcv_info { - struct packet_type *ptype; struct fc_lport *fr_dev; /* transport layer private pointer */ struct fc_seq *fr_seq; /* for use with exchange manager */ struct fc_fcp_pkt *fr_fsp; /* for the corresponding fcp I/O */ -- cgit v1.2.3 From b6873807a7143b7d6d8b06809295e559d07d7deb Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Mon, 11 Jul 2011 12:17:31 +0200 Subject: irq: Track the owner of irq descriptor Interrupt descriptors can be allocated from modules. The interrupts are used by other modules, but we have no refcount on the module which provides the interrupts and there is no way to establish one on the device level as the interrupt using module is agnostic to the fact that the interrupt is provided by a module rather than by some builtin interrupt controller. To prevent removal of the interrupt providing module, we can track the owner of the interrupt descriptor, which also provides the relevant irq chip functions in the irq descriptor. request/setup_irq() can now acquire a refcount on the owner module to prevent unloading. free_irq() drops the refcount. Signed-off-by: Sebastian Andrzej Siewior Link: http://lkml.kernel.org/r/20110711101731.GA13804@Chamillionaire.breakpoint.cc Signed-off-by: Thomas Gleixner --- include/linux/irq.h | 11 ++++++++++- include/linux/irqdesc.h | 1 + 2 files changed, 11 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/irq.h b/include/linux/irq.h index baa397eb9c33..16d6f54ef1dd 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -23,6 +23,7 @@ #include #include #include +#include #include #include @@ -546,7 +547,15 @@ static inline struct msi_desc *irq_data_get_msi(struct irq_data *d) return d->msi_desc; } -int irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node); +int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, + struct module *owner); + +static inline int irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, + int node) +{ + return __irq_alloc_descs(irq, from, cnt, node, THIS_MODULE); +} + void irq_free_descs(unsigned int irq, unsigned int cnt); int irq_reserve_irqs(unsigned int from, unsigned int cnt); diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 2d921b35212c..150134ac709a 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -66,6 +66,7 @@ struct irq_desc { #ifdef CONFIG_PROC_FS struct proc_dir_entry *dir; #endif + struct module *owner; const char *name; } ____cacheline_internodealigned_in_smp; -- cgit v1.2.3 From 3038bbdf7404ae3948385cbde30df946579d4e3a Mon Sep 17 00:00:00 2001 From: Jamie Iles Date: Thu, 28 Jul 2011 16:25:41 +0100 Subject: of/gpio: export of_gpio_simple_xlate Allow GPIO drivers to use of_gpio_simple_xlate. This is useful for the generic GPIO driver for example where gpio_chip is embedded in bgpio_chip and doesn't need of_mm_gpio_chip but has a simple 1:1 GPIO mapping. Cc: Anton Vorontsov Cc: Grant Likely Signed-off-by: Jamie Iles Signed-off-by: Grant Likely --- include/linux/of_gpio.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h index aec8025c786a..52280a2b5e63 100644 --- a/include/linux/of_gpio.h +++ b/include/linux/of_gpio.h @@ -57,6 +57,8 @@ extern int of_mm_gpiochip_add(struct device_node *np, extern void of_gpiochip_add(struct gpio_chip *gc); extern void of_gpiochip_remove(struct gpio_chip *gc); extern struct gpio_chip *of_node_to_gpiochip(struct device_node *np); +extern int of_gpio_simple_xlate(struct gpio_chip *gc, struct device_node *np, + const void *gpio_spec, u32 *flags); #else /* CONFIG_OF_GPIO */ @@ -72,6 +74,13 @@ static inline unsigned int of_gpio_count(struct device_node *np) return 0; } +static inline int of_gpio_simple_xlate(struct gpio_chip *gc, + struct device_node *np, + const void *gpio_spec, u32 *flags) +{ + return -ENOSYS; +} + static inline void of_gpiochip_add(struct gpio_chip *gc) { } static inline void of_gpiochip_remove(struct gpio_chip *gc) { } -- cgit v1.2.3 From 14b9f27886ce69c5f11445d107dd020f6fc5754b Mon Sep 17 00:00:00 2001 From: Pavel Roskin Date: Tue, 26 Jul 2011 18:52:35 -0400 Subject: pcmcia: add PCMCIA_DEVICE_MANF_CARD_PROD_ID3 This is needed to match wireless cards with Intersil firmware that have ID 0x0156:0x0002 and the third ID "Version 01.02". Such cards are currently matched by orinoco_cs, which doesn't support WPA. They should be matched by hostap_cs. The first and the second product ID vary widely, so there are few users with some particular IDs. Of those, very few can submit a patch for hostap_cs or write a useful bugreport. It's still important to support their hardware properly. With PCMCIA_DEVICE_MANF_CARD_PROD_ID3, it should be possible to cover the remaining Intersil based designs that kept the numeric ID and the "version" of the reference design. Signed-off-by: Pavel Roskin Signed-off-by: Dominik Brodowski --- include/pcmcia/device_id.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include') diff --git a/include/pcmcia/device_id.h b/include/pcmcia/device_id.h index 63e5b8f6b7dd..00dbfac9c6e1 100644 --- a/include/pcmcia/device_id.h +++ b/include/pcmcia/device_id.h @@ -95,6 +95,15 @@ .prod_id = { (v1), NULL, NULL, NULL }, \ .prod_id_hash = { (vh1), 0, 0, 0 }, } +#define PCMCIA_DEVICE_MANF_CARD_PROD_ID3(manf, card, v3, vh3) { \ + .match_flags = PCMCIA_DEV_ID_MATCH_MANF_ID| \ + PCMCIA_DEV_ID_MATCH_CARD_ID| \ + PCMCIA_DEV_ID_MATCH_PROD_ID3, \ + .manf_id = (manf), \ + .card_id = (card), \ + .prod_id = { NULL, NULL, (v3), NULL }, \ + .prod_id_hash = { 0, 0, (vh3), 0 }, } + /* multi-function devices */ -- cgit v1.2.3 From 2a11c8ea20bf850b3a2c60db8c2e7497d28aba99 Mon Sep 17 00:00:00 2001 From: Michal Marek Date: Wed, 20 Jul 2011 17:38:57 +0200 Subject: kconfig: Introduce IS_ENABLED(), IS_BUILTIN() and IS_MODULE() Replace the config_is_*() macros with a variant that allows for grepping for usage of CONFIG_* options in the code. Usage: if (IS_ENABLED(CONFIG_NUMA)) or #if IS_ENABLED(CONFIG_NUMA) The IS_ENABLED() macro evaluates to 1 if the argument is set (to either 'y' or 'm'), IS_BUILTIN() tests if the option is 'y' and IS_MODULE() test if the option is 'm'. Only boolean and tristate options are supported. Reviewed-by: Arnaud Lacombe Acked-by: Randy Dunlap Signed-off-by: Michal Marek --- include/linux/kconfig.h | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 include/linux/kconfig.h (limited to 'include') diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h new file mode 100644 index 000000000000..067eda0e4b32 --- /dev/null +++ b/include/linux/kconfig.h @@ -0,0 +1,32 @@ +#ifndef __LINUX_KCONFIG_H +#define __LINUX_KCONFIG_H + +#include + +/* + * Helper macros to use CONFIG_ options in C expressions. Note that + * these only work with boolean and tristate options. + */ + +/* + * IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm', + * 0 otherwise. + * + */ +#define IS_ENABLED(option) \ + (__enabled_ ## option || __enabled_ ## option ## _MODULE) + +/* + * IS_BUILTIN(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y', 0 + * otherwise. For boolean options, this is equivalent to + * IS_ENABLED(CONFIG_FOO). + */ +#define IS_BUILTIN(option) __enabled_ ## option + +/* + * IS_MODULE(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'm', 0 + * otherwise. + */ +#define IS_MODULE(option) __enabled_ ## option ## _MODULE + +#endif /* __LINUX_KCONFIG_H */ -- cgit v1.2.3 From 59be8e7280c10fd8f078ba6dc2bcdc2b1453b6ab Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sat, 30 Jul 2011 12:38:46 -0400 Subject: ext4: change umode_t in tracepoint headers to be an explicit __u16 As requested by Al Viro, since umode_t may be changing to a u32 for some architectures. Signed-off-by: "Theodore Ts'o" Cc: Al Viro --- include/trace/events/ext4.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h index 51d88139eb8c..bf5518d50423 100644 --- a/include/trace/events/ext4.h +++ b/include/trace/events/ext4.h @@ -23,7 +23,7 @@ TRACE_EVENT(ext4_free_inode, TP_STRUCT__entry( __field( dev_t, dev ) __field( ino_t, ino ) - __field( umode_t, mode ) + __field( __u16, mode ) __field( uid_t, uid ) __field( gid_t, gid ) __field( __u64, blocks ) @@ -52,7 +52,7 @@ TRACE_EVENT(ext4_request_inode, TP_STRUCT__entry( __field( dev_t, dev ) __field( ino_t, dir ) - __field( umode_t, mode ) + __field( __u16, mode ) ), TP_fast_assign( @@ -75,7 +75,7 @@ TRACE_EVENT(ext4_allocate_inode, __field( dev_t, dev ) __field( ino_t, ino ) __field( ino_t, dir ) - __field( umode_t, mode ) + __field( __u16, mode ) ), TP_fast_assign( @@ -727,7 +727,7 @@ TRACE_EVENT(ext4_free_blocks, TP_STRUCT__entry( __field( dev_t, dev ) __field( ino_t, ino ) - __field( umode_t, mode ) + __field( __u16, mode ) __field( __u64, block ) __field( unsigned long, count ) __field( int, flags ) @@ -1014,7 +1014,7 @@ TRACE_EVENT(ext4_forget, TP_STRUCT__entry( __field( dev_t, dev ) __field( ino_t, ino ) - __field( umode_t, mode ) + __field( __u16, mode ) __field( int, is_metadata ) __field( __u64, block ) ), @@ -1041,7 +1041,7 @@ TRACE_EVENT(ext4_da_update_reserve_space, TP_STRUCT__entry( __field( dev_t, dev ) __field( ino_t, ino ) - __field( umode_t, mode ) + __field( __u16, mode ) __field( __u64, i_blocks ) __field( int, used_blocks ) __field( int, reserved_data_blocks ) @@ -1078,7 +1078,7 @@ TRACE_EVENT(ext4_da_reserve_space, TP_STRUCT__entry( __field( dev_t, dev ) __field( ino_t, ino ) - __field( umode_t, mode ) + __field( __u16, mode ) __field( __u64, i_blocks ) __field( int, md_needed ) __field( int, reserved_data_blocks ) @@ -1112,7 +1112,7 @@ TRACE_EVENT(ext4_da_release_space, TP_STRUCT__entry( __field( dev_t, dev ) __field( ino_t, ino ) - __field( umode_t, mode ) + __field( __u16, mode ) __field( __u64, i_blocks ) __field( int, freed_blocks ) __field( int, reserved_data_blocks ) -- cgit v1.2.3 From 0c0308066ca53fdf1423895f3a42838b67b3a5a8 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sat, 30 Jul 2011 12:45:35 -0400 Subject: NFS: Fix spurious readdir cookie loop messages If the directory contents change, then we have to accept that the file->f_pos value may shrink if we do a 'search-by-cookie'. In that case, we should turn off the loop detection and let the NFS client try to recover. The patch also fixes a second loop detection bug by ensuring that after turning on the ctx->duped flag, we read at least one new cookie into ctx->dir_cookie before attempting to match with ctx->dup_cookie. Reported-by: Petr Vandrovec Cc: stable@kernel.org [2.6.39+] Signed-off-by: Trond Myklebust --- include/linux/nfs_fs.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 8b579beb6358..b96fb99072ff 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -99,9 +99,10 @@ struct nfs_open_context { struct nfs_open_dir_context { struct rpc_cred *cred; + unsigned long attr_gencount; __u64 dir_cookie; __u64 dup_cookie; - int duped; + signed char duped; }; /* -- cgit v1.2.3 From 5774ed014f02120db9a6945a1ecebeb97c2acccb Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Fri, 29 Jul 2011 03:55:31 +0400 Subject: shm: handle separate PID namespaces case shm_try_destroy_orphaned() and shm_try_destroy_current() didn't handle the case of separate PID namespaces, but a single IPC namespace. If there are tasks with the same PID values using the same shmem object, the wrong destroy decision could be reached. On shm segment creation store the pointer to the creator task in shmid_kernel->shm_creator field and zero it on task exit. Then use the ->shm_creator insread of shm_cprid in both functions. As shmid_kernel object is already locked at this stage, no additional locking is needed. Signed-off-by: Vasiliy Kulikov Acked-by: Serge Hallyn Signed-off-by: Linus Torvalds --- include/linux/shm.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/shm.h b/include/linux/shm.h index 7d27ffde0190..92808b86703b 100644 --- a/include/linux/shm.h +++ b/include/linux/shm.h @@ -95,6 +95,9 @@ struct shmid_kernel /* private to the kernel */ pid_t shm_cprid; pid_t shm_lprid; struct user_struct *mlock_user; + + /* The task created the shm object. NULL if the task is dead. */ + struct task_struct *shm_creator; }; /* shm_mode upper byte flags */ -- cgit v1.2.3 From 1c388919d89ca35741e9c4d3255adf87f76f0c06 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Sat, 7 May 2011 20:53:16 +0200 Subject: resources: Add lookup_resource() Add a function to find an existing resource by a resource start address. This allows to implement simple allocators (with a malloc/free-alike API) on top of the resource system. Signed-off-by: Geert Uytterhoeven --- include/linux/ioport.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/ioport.h b/include/linux/ioport.h index e9bb22cba764..63eb429ecbe6 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -132,6 +132,7 @@ extern int allocate_resource(struct resource *root, struct resource *new, resource_size_t, resource_size_t), void *alignf_data); +struct resource *lookup_resource(struct resource *root, resource_size_t start); int adjust_resource(struct resource *res, resource_size_t start, resource_size_t size); resource_size_t resource_alignment(struct resource *res); -- cgit v1.2.3 From a9bae5666d0510ad69bdb437371c9a3e6b770705 Mon Sep 17 00:00:00 2001 From: Peng Tao Date: Sat, 30 Jul 2011 20:52:33 -0400 Subject: pnfs: let layoutcommit handle a list of lseg There can be multiple lseg per file, so layoutcommit should be able to handle it. [Needed in v3.0] CC: Stable Tree Signed-off-by: Peng Tao Signed-off-by: Boaz Harrosh Signed-off-by: Jim Rees Signed-off-by: Trond Myklebust --- include/linux/nfs_xdr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 5b115956abac..feb312716c07 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -262,7 +262,7 @@ struct nfs4_layoutcommit_res { struct nfs4_layoutcommit_data { struct rpc_task task; struct nfs_fattr fattr; - struct pnfs_layout_segment *lseg; + struct list_head lseg_list; struct rpc_cred *cred; struct nfs4_layoutcommit_args args; struct nfs4_layoutcommit_res res; -- cgit v1.2.3 From 7f11d8d38d64739e190581e015a2a2730ff54e2a Mon Sep 17 00:00:00 2001 From: Andy Adamson Date: Sat, 30 Jul 2011 20:52:35 -0400 Subject: pnfs: GETDEVICELIST The block driver uses GETDEVICELIST Signed-off-by: Andy Adamson [pass struct nfs_server * to getdevicelist] [get machince creds for getdevicelist] [fix getdevicelist decode sizing] Signed-off-by: Benny Halevy Signed-off-by: Benny Halevy Signed-off-by: Jim Rees Signed-off-by: Trond Myklebust --- include/linux/nfs4.h | 1 + include/linux/nfs_xdr.h | 11 +++++++++++ 2 files changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index a3c4bc800dce..76f99e8714f3 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -566,6 +566,7 @@ enum { NFSPROC4_CLNT_SECINFO_NO_NAME, NFSPROC4_CLNT_TEST_STATEID, NFSPROC4_CLNT_FREE_STATEID, + NFSPROC4_CLNT_GETDEVICELIST, }; /* nfs41 types */ diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index feb312716c07..21f333eae3c8 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -235,6 +235,17 @@ struct nfs4_layoutget { gfp_t gfp_flags; }; +struct nfs4_getdevicelist_args { + const struct nfs_fh *fh; + u32 layoutclass; + struct nfs4_sequence_args seq_args; +}; + +struct nfs4_getdevicelist_res { + struct pnfs_devicelist *devlist; + struct nfs4_sequence_res seq_res; +}; + struct nfs4_getdeviceinfo_args { struct pnfs_device *pdev; struct nfs4_sequence_args seq_args; -- cgit v1.2.3 From dae100c2b1b9463996aab9162f2258145c43f7df Mon Sep 17 00:00:00 2001 From: Fred Isaman Date: Sat, 30 Jul 2011 20:52:37 -0400 Subject: pnfs: ask for layout_blksize and save it in nfs_server Block layout needs it to determine IO size. Signed-off-by: Fred Isaman Signed-off-by: Tao Guo Signed-off-by: Benny Halevy Signed-off-by: Benny Halevy Signed-off-by: Jim Rees Signed-off-by: Trond Myklebust --- include/linux/nfs_fs_sb.h | 3 ++- include/linux/nfs_xdr.h | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 4faeac8f448a..b2ea8b82d2cb 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -132,7 +132,7 @@ struct nfs_server { #endif #ifdef CONFIG_NFS_V4 - u32 attr_bitmask[2];/* V4 bitmask representing the set + u32 attr_bitmask[3];/* V4 bitmask representing the set of attributes supported on this filesystem */ u32 cache_consistency_bitmask[2]; @@ -145,6 +145,7 @@ struct nfs_server { filesystem */ struct pnfs_layoutdriver_type *pnfs_curr_ld; /* Active layout driver */ struct rpc_wait_queue roc_rpcwaitq; + u32 pnfs_blksize; /* layout_blksize attr */ /* the following fields are protected by nfs_client->cl_lock */ struct rb_root state_owners; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 21f333eae3c8..94f27e56df9c 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -122,6 +122,7 @@ struct nfs_fsinfo { struct timespec time_delta; /* server time granularity */ __u32 lease_time; /* in seconds */ __u32 layouttype; /* supported pnfs layout driver */ + __u32 blksize; /* preferred pnfs io block size */ }; struct nfs_fsstat { @@ -954,7 +955,7 @@ struct nfs4_server_caps_arg { }; struct nfs4_server_caps_res { - u32 attr_bitmask[2]; + u32 attr_bitmask[3]; u32 acl_bitmask; u32 has_links; u32 has_symlinks; -- cgit v1.2.3 From db29c089094b2e686ebc9ed9f002be4a4f94b1f8 Mon Sep 17 00:00:00 2001 From: Andy Adamson Date: Sat, 30 Jul 2011 20:52:38 -0400 Subject: pnfs: cleanup_layoutcommit This gives layout driver a chance to cleanup structures they put in at encode_layoutcommit. Signed-off-by: Andy Adamson [fixup layout header pointer for layoutcommit] Signed-off-by: Benny Halevy Signed-off-by: Benny Halevy [rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()] Signed-off-by: Jim Rees Signed-off-by: Trond Myklebust --- include/linux/nfs_xdr.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 94f27e56df9c..569ea5b76fda 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -269,6 +269,7 @@ struct nfs4_layoutcommit_res { struct nfs_fattr *fattr; const struct nfs_server *server; struct nfs4_sequence_res seq_res; + int status; }; struct nfs4_layoutcommit_data { -- cgit v1.2.3 From fe0a9b740881d181e3c96c1f6f6043e252692ffe Mon Sep 17 00:00:00 2001 From: Jim Rees Date: Sat, 30 Jul 2011 20:52:42 -0400 Subject: pnfsblock: add device operations Signed-off-by: Jim Rees Signed-off-by: Fred Isaman Signed-off-by: Benny Halevy Signed-off-by: Benny Halevy [upcall bugfixes] Signed-off-by: Peng Tao Signed-off-by: Trond Myklebust --- include/linux/nfs.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/nfs.h b/include/linux/nfs.h index f387919bbc59..8c6ee44914cb 100644 --- a/include/linux/nfs.h +++ b/include/linux/nfs.h @@ -29,6 +29,8 @@ #define NFS_MNT_VERSION 1 #define NFS_MNT3_VERSION 3 +#define NFS_PIPE_DIRNAME "/nfs" + /* * NFS stats. The good thing with these values is that NFSv3 errors are * a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which -- cgit v1.2.3 From 2f9fd182607e7b3bdca35f6ed7f2fae539f7c46b Mon Sep 17 00:00:00 2001 From: Fred Isaman Date: Sat, 30 Jul 2011 20:52:46 -0400 Subject: pnfsblock: call and parse getdevicelist Call GETDEVICELIST during mount, then call and parse GETDEVICEINFO for each device returned. [pnfsblock: get rid of deprecated xdr macros] Signed-off-by: Jim Rees [pnfsblock: fix pnfs_deviceid references] Signed-off-by: Fred Isaman [pnfsblock: fix print format warnings for sector_t and size_t] [pnfs-block: #include ] [pnfsblock: no PNFS_NFS_SERVER] Signed-off-by: Benny Halevy [pnfsblock: fix bug determining size of striped volume] [pnfsblock: fix oops when using multiple devices] Signed-off-by: Fred Isaman Signed-off-by: Benny Halevy Signed-off-by: Benny Halevy [pnfsblock: get rid of vmap and deviceid->area structure] Signed-off-by: Peng Tao Signed-off-by: Jim Rees Signed-off-by: Trond Myklebust --- include/linux/nfs_fs_sb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index b2ea8b82d2cb..cc03fc1dfb72 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -146,6 +146,7 @@ struct nfs_server { struct pnfs_layoutdriver_type *pnfs_curr_ld; /* Active layout driver */ struct rpc_wait_queue roc_rpcwaitq; u32 pnfs_blksize; /* layout_blksize attr */ + void *pnfs_ld_data; /* per mount point data */ /* the following fields are protected by nfs_client->cl_lock */ struct rb_root state_owners; -- cgit v1.2.3 From aa387cc895672b00f807ad7c734a2defaf677712 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Sun, 31 Jul 2011 22:05:09 +0200 Subject: block: add bsg helper library This moves the FC classes bsg code to the block layer and makes it a lib so that other classes like iscsi and SAS can use it. It is helpful because working with the request queue, bios, creating scatterlists, etc are a pain that the LLD does not have to worry about with normal IOs and should not have to worry about for bsg requests. Signed-off-by: Mike Christie Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 4 +++ include/linux/bsg-lib.h | 73 +++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 77 insertions(+) create mode 100644 include/linux/bsg-lib.h (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 0e67c45b3bc9..847928546076 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -30,6 +30,7 @@ struct request_pm_state; struct blk_trace; struct request; struct sg_io_hdr; +struct bsg_job; #define BLKDEV_MIN_RQ 4 #define BLKDEV_MAX_RQ 128 /* Default maximum */ @@ -209,6 +210,7 @@ typedef int (merge_bvec_fn) (struct request_queue *, struct bvec_merge_data *, typedef void (softirq_done_fn)(struct request *); typedef int (dma_drain_needed_fn)(struct request *); typedef int (lld_busy_fn) (struct request_queue *q); +typedef int (bsg_job_fn) (struct bsg_job *); enum blk_eh_timer_return { BLK_EH_NOT_HANDLED, @@ -375,6 +377,8 @@ struct request_queue { struct mutex sysfs_lock; #if defined(CONFIG_BLK_DEV_BSG) + bsg_job_fn *bsg_job_fn; + int bsg_job_size; struct bsg_class_device bsg_dev; #endif diff --git a/include/linux/bsg-lib.h b/include/linux/bsg-lib.h new file mode 100644 index 000000000000..f55ab8cdc106 --- /dev/null +++ b/include/linux/bsg-lib.h @@ -0,0 +1,73 @@ +/* + * BSG helper library + * + * Copyright (C) 2008 James Smart, Emulex Corporation + * Copyright (C) 2011 Red Hat, Inc. All rights reserved. + * Copyright (C) 2011 Mike Christie + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ +#ifndef _BLK_BSG_ +#define _BLK_BSG_ + +#include + +struct request; +struct device; +struct scatterlist; +struct request_queue; + +struct bsg_buffer { + unsigned int payload_len; + int sg_cnt; + struct scatterlist *sg_list; +}; + +struct bsg_job { + struct device *dev; + struct request *req; + + /* Transport/driver specific request/reply structs */ + void *request; + void *reply; + + unsigned int request_len; + unsigned int reply_len; + /* + * On entry : reply_len indicates the buffer size allocated for + * the reply. + * + * Upon completion : the message handler must set reply_len + * to indicates the size of the reply to be returned to the + * caller. + */ + + /* DMA payloads for the request/response */ + struct bsg_buffer request_payload; + struct bsg_buffer reply_payload; + + void *dd_data; /* Used for driver-specific storage */ +}; + +void bsg_job_done(struct bsg_job *job, int result, + unsigned int reply_payload_rcv_len); +int bsg_setup_queue(struct device *dev, struct request_queue *q, char *name, + bsg_job_fn *job_fn, int dd_job_size); +void bsg_request_fn(struct request_queue *q); +void bsg_remove_queue(struct request_queue *q); +void bsg_goose_queue(struct request_queue *q); + +#endif -- cgit v1.2.3 From 34dd82afd27da2537199d7f71f1542501c6f96e7 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Sun, 31 Jul 2011 22:08:04 +0200 Subject: loop: replace linked list of allocated devices with an idr index Replace the linked list, that keeps track of allocated devices, with an idr index to allow a more efficient lookup of devices. Cc: Tejun Heo Signed-off-by: Kay Sievers Signed-off-by: Jens Axboe --- include/linux/loop.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/loop.h b/include/linux/loop.h index 66c194e2d9b9..5f08d18fa148 100644 --- a/include/linux/loop.h +++ b/include/linux/loop.h @@ -64,7 +64,6 @@ struct loop_device { struct request_queue *lo_queue; struct gendisk *lo_disk; - struct list_head lo_list; }; #endif /* __KERNEL__ */ -- cgit v1.2.3 From 770fe30a46a12b6fb6b63fbe1737654d28e84844 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Sun, 31 Jul 2011 22:08:04 +0200 Subject: loop: add management interface for on-demand device allocation Loop devices today have a fixed pre-allocated number of usually 8. The number can only be changed at module init time. To find a free device to use, /dev/loop%i needs to be scanned, and all devices need to be opened until a free one is possibly found. This adds a new /dev/loop-control device node, that allows to dynamically find or allocate a free device, and to add and remove loop devices from the running system: LOOP_CTL_ADD adds a specific device. Arg is the number of the device. It returns the device i or a negative error code. LOOP_CTL_REMOVE removes a specific device, Arg is the number the device. It returns the device i or a negative error code. LOOP_CTL_GET_FREE finds the next unbound device or allocates a new one. No arg is given. It returns the device i or a negative error code. The loop kernel module gets automatically loaded when /dev/loop-control is accessed the first time. The alias specified in the module, instructs udev to create this 'dead' device node, even when the module is not loaded. Example: cfd = open("/dev/loop-control", O_RDWR); # add a new specific loop device err = ioctl(cfd, LOOP_CTL_ADD, devnr); # remove a specific loop device err = ioctl(cfd, LOOP_CTL_REMOVE, devnr); # find or allocate a free loop device to use devnr = ioctl(cfd, LOOP_CTL_GET_FREE); sprintf(loopname, "/dev/loop%i", devnr); ffd = open("backing-file", O_RDWR); lfd = open(loopname, O_RDWR); err = ioctl(lfd, LOOP_SET_FD, ffd); Cc: Tejun Heo Cc: Karel Zak Signed-off-by: Kay Sievers Signed-off-by: Jens Axboe --- include/linux/loop.h | 4 ++++ include/linux/miscdevice.h | 1 + 2 files changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/loop.h b/include/linux/loop.h index 5f08d18fa148..683d69890119 100644 --- a/include/linux/loop.h +++ b/include/linux/loop.h @@ -160,4 +160,8 @@ int loop_unregister_transfer(int number); #define LOOP_CHANGE_FD 0x4C06 #define LOOP_SET_CAPACITY 0x4C07 +/* /dev/loop-control interface */ +#define LOOP_CTL_ADD 0x4C80 +#define LOOP_CTL_REMOVE 0x4C81 +#define LOOP_CTL_GET_FREE 0x4C82 #endif diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h index 18fd13028ba1..c309b1ecdc1c 100644 --- a/include/linux/miscdevice.h +++ b/include/linux/miscdevice.h @@ -40,6 +40,7 @@ #define BTRFS_MINOR 234 #define AUTOFS_MINOR 235 #define MAPPER_CTRL_MINOR 236 +#define LOOP_CTRL_MINOR 237 #define MISC_DYNAMIC_MINOR 255 struct device; -- cgit v1.2.3 From ca7a71824ac957b1b9d3322656c05aad38d7275c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 2 Jun 2011 19:18:47 +0100 Subject: mfd: Fix bus lock interaction for WM831x IRQ set_type() operation The WM831x IRQ set_type() operation is doing a direct register write when called but since set_type() is called with the bus lock held this isn't legal and could cause deadlocks in the IRQ core. Fix this by posting the updates into an array and syncing in the bus_sync_unlock() callback. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- include/linux/mfd/wm831x/core.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/wm831x/core.h b/include/linux/mfd/wm831x/core.h index 0d515ee1c247..ebead1c401aa 100644 --- a/include/linux/mfd/wm831x/core.h +++ b/include/linux/mfd/wm831x/core.h @@ -237,6 +237,7 @@ struct regulator_dev; #define WM831X_NUM_IRQ_REGS 5 +#define WM831X_NUM_GPIO_REGS 16 enum wm831x_parent { WM8310 = 0x8310, @@ -272,6 +273,9 @@ struct wm831x { int num_gpio; + /* Used by the interrupt controller code to post writes */ + int gpio_update[WM831X_NUM_GPIO_REGS]; + struct mutex auxadc_lock; struct completion auxadc_done; -- cgit v1.2.3 From 266a5e02fe2690637b2318c9fc5c3513937128f4 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 2 Jun 2011 19:18:49 +0100 Subject: mfd: Allow touchscreen to be disabled on wm831x devices Allow platform data to flag the touchscreen as disabled so that if the touch driver is built in we don't end up causing lots of work by spuriously detecting touchscreen activity on systems where it isn't in use. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- include/linux/mfd/wm831x/pdata.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/wm831x/pdata.h b/include/linux/mfd/wm831x/pdata.h index ff42d700293f..0ba24599fe51 100644 --- a/include/linux/mfd/wm831x/pdata.h +++ b/include/linux/mfd/wm831x/pdata.h @@ -120,6 +120,9 @@ struct wm831x_pdata { /** Put the /IRQ line into CMOS mode */ bool irq_cmos; + /** Disable the touchscreen */ + bool disable_touch; + int irq_base; int gpio_base; int gpio_defaults[WM831X_GPIO_NUM]; -- cgit v1.2.3 From 5c05a8d1f0105ada3cb04be5b70686fc6b272619 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 2 Jun 2011 19:18:51 +0100 Subject: mfd: Support dynamic allocation of IRQ range for wm831x Use irq_allocate_desc() to get the IRQ range, which turns into a noop on non-sparse systems. Since all existing users are non-sparse there should be no compatibility issues. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- include/linux/mfd/wm831x/core.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mfd/wm831x/core.h b/include/linux/mfd/wm831x/core.h index ebead1c401aa..9564cf315276 100644 --- a/include/linux/mfd/wm831x/core.h +++ b/include/linux/mfd/wm831x/core.h @@ -262,7 +262,7 @@ struct wm831x { int irq; /* Our chip IRQ */ struct mutex irq_lock; - unsigned int irq_base; + int irq_base; int irq_masks_cur[WM831X_NUM_IRQ_REGS]; /* Currently active value */ int irq_masks_cache[WM831X_NUM_IRQ_REGS]; /* Cached hardware value */ -- cgit v1.2.3 From c1a82780b41e78f31636c49279ce940afe60a453 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 2 Jun 2011 19:18:52 +0100 Subject: mfd: Read wm831x AUXADC conversion results before acknowledging interrupt Ensure that there's no possibility of loosing an AUXADC interrupt by reading the conversion result in the IRQ handler when using interrupts. Otherwise it's possible that under very heavy load a new conversion could be initiated before the acknowledgement for a previous interrupt has happened. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- include/linux/mfd/wm831x/core.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mfd/wm831x/core.h b/include/linux/mfd/wm831x/core.h index 9564cf315276..592e4fd6ab3f 100644 --- a/include/linux/mfd/wm831x/core.h +++ b/include/linux/mfd/wm831x/core.h @@ -278,6 +278,7 @@ struct wm831x { struct mutex auxadc_lock; struct completion auxadc_done; + u16 auxadc_data; /* The WM831x has a security key blocking access to certain * registers. The mutex is taken by the accessors for locking -- cgit v1.2.3 From 78bb3688ea1830672b8095fb6388593f582cd591 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 7 Jun 2011 11:47:28 +0100 Subject: mfd: Support multiple active WM831x AUXADC conversions The WM831x AUXADC hardware can schedule multiple conversions at once, allowing higher performance when more than one source is in use as we can have the hardware start new conversions without having to wait for a register write. Take advantage of this in the interrupt driven case, maintaining a list of callers that are waiting for AUXADC conversions and completing them all simultaneously. The external interface of the AUXADC is not changed so there will be limited use of the feature immediately. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- include/linux/mfd/wm831x/core.h | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/mfd/wm831x/core.h b/include/linux/mfd/wm831x/core.h index 592e4fd6ab3f..9fa14cdc1590 100644 --- a/include/linux/mfd/wm831x/core.h +++ b/include/linux/mfd/wm831x/core.h @@ -17,6 +17,7 @@ #include #include +#include /* * Register values. @@ -249,6 +250,12 @@ enum wm831x_parent { WM8326 = 0x8326, }; +struct wm831x; +enum wm831x_auxadc; + +typedef int (*wm831x_auxadc_read_fn)(struct wm831x *wm831x, + enum wm831x_auxadc input); + struct wm831x { struct mutex io_lock; @@ -277,8 +284,9 @@ struct wm831x { int gpio_update[WM831X_NUM_GPIO_REGS]; struct mutex auxadc_lock; - struct completion auxadc_done; - u16 auxadc_data; + struct list_head auxadc_pending; + u16 auxadc_active; + wm831x_auxadc_read_fn auxadc_read; /* The WM831x has a security key blocking access to certain * registers. The mutex is taken by the accessors for locking @@ -305,5 +313,6 @@ void wm831x_device_exit(struct wm831x *wm831x); int wm831x_device_suspend(struct wm831x *wm831x); int wm831x_irq_init(struct wm831x *wm831x, int irq); void wm831x_irq_exit(struct wm831x *wm831x); +void wm831x_auxadc_init(struct wm831x *wm831x); #endif -- cgit v1.2.3 From 36e52873c6393b569f2befcdd1847929211892b8 Mon Sep 17 00:00:00 2001 From: Margarita Olaya Date: Thu, 9 Jun 2011 14:50:00 -0500 Subject: mfd: tps65912: Add new mfd device The tps65912 chip is a power management IC. It contains the following components: - Regulators - GPIO controller The core driver is registered as a platform driver, it provides communication through I2C and SPI interfaces. Signed-off-by: Margarita Olaya Cabrera Acked-by: Samuel Ortiz Acked-by: Liam Girdwood Signed-off-by: Samuel Ortiz --- include/linux/mfd/tps65912.h | 321 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 321 insertions(+) create mode 100644 include/linux/mfd/tps65912.h (limited to 'include') diff --git a/include/linux/mfd/tps65912.h b/include/linux/mfd/tps65912.h new file mode 100644 index 000000000000..48d3b53316a9 --- /dev/null +++ b/include/linux/mfd/tps65912.h @@ -0,0 +1,321 @@ +/* + * tps65912.h -- TI TPS6591x + * + * Copyright 2011 Texas Instruments Inc. + * + * Author: Margarita Olaya + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#ifndef __LINUX_MFD_TPS65912_H +#define __LINUX_MFD_TPS65912_H + +/* TPS regulator type list */ +#define REGULATOR_LDO 0 +#define REGULATOR_DCDC 1 + +/* + * List of registers for TPS65912 + */ + +#define TPS65912_DCDC1_CTRL 0x00 +#define TPS65912_DCDC2_CTRL 0x01 +#define TPS65912_DCDC3_CTRL 0x02 +#define TPS65912_DCDC4_CTRL 0x03 +#define TPS65912_DCDC1_OP 0x04 +#define TPS65912_DCDC1_AVS 0x05 +#define TPS65912_DCDC1_LIMIT 0x06 +#define TPS65912_DCDC2_OP 0x07 +#define TPS65912_DCDC2_AVS 0x08 +#define TPS65912_DCDC2_LIMIT 0x09 +#define TPS65912_DCDC3_OP 0x0A +#define TPS65912_DCDC3_AVS 0x0B +#define TPS65912_DCDC3_LIMIT 0x0C +#define TPS65912_DCDC4_OP 0x0D +#define TPS65912_DCDC4_AVS 0x0E +#define TPS65912_DCDC4_LIMIT 0x0F +#define TPS65912_LDO1_OP 0x10 +#define TPS65912_LDO1_AVS 0x11 +#define TPS65912_LDO1_LIMIT 0x12 +#define TPS65912_LDO2_OP 0x13 +#define TPS65912_LDO2_AVS 0x14 +#define TPS65912_LDO2_LIMIT 0x15 +#define TPS65912_LDO3_OP 0x16 +#define TPS65912_LDO3_AVS 0x17 +#define TPS65912_LDO3_LIMIT 0x18 +#define TPS65912_LDO4_OP 0x19 +#define TPS65912_LDO4_AVS 0x1A +#define TPS65912_LDO4_LIMIT 0x1B +#define TPS65912_LDO5 0x1C +#define TPS65912_LDO6 0x1D +#define TPS65912_LDO7 0x1E +#define TPS65912_LDO8 0x1F +#define TPS65912_LDO9 0x20 +#define TPS65912_LDO10 0x21 +#define TPS65912_THRM 0x22 +#define TPS65912_CLK32OUT 0x23 +#define TPS65912_DEVCTRL 0x24 +#define TPS65912_DEVCTRL2 0x25 +#define TPS65912_I2C_SPI_CFG 0x26 +#define TPS65912_KEEP_ON 0x27 +#define TPS65912_KEEP_ON2 0x28 +#define TPS65912_SET_OFF1 0x29 +#define TPS65912_SET_OFF2 0x2A +#define TPS65912_DEF_VOLT 0x2B +#define TPS65912_DEF_VOLT_MAPPING 0x2C +#define TPS65912_DISCHARGE 0x2D +#define TPS65912_DISCHARGE2 0x2E +#define TPS65912_EN1_SET1 0x2F +#define TPS65912_EN1_SET2 0x30 +#define TPS65912_EN2_SET1 0x31 +#define TPS65912_EN2_SET2 0x32 +#define TPS65912_EN3_SET1 0x33 +#define TPS65912_EN3_SET2 0x34 +#define TPS65912_EN4_SET1 0x35 +#define TPS65912_EN4_SET2 0x36 +#define TPS65912_PGOOD 0x37 +#define TPS65912_PGOOD2 0x38 +#define TPS65912_INT_STS 0x39 +#define TPS65912_INT_MSK 0x3A +#define TPS65912_INT_STS2 0x3B +#define TPS65912_INT_MSK2 0x3C +#define TPS65912_INT_STS3 0x3D +#define TPS65912_INT_MSK3 0x3E +#define TPS65912_INT_STS4 0x3F +#define TPS65912_INT_MSK4 0x40 +#define TPS65912_GPIO1 0x41 +#define TPS65912_GPIO2 0x42 +#define TPS65912_GPIO3 0x43 +#define TPS65912_GPIO4 0x44 +#define TPS65912_GPIO5 0x45 +#define TPS65912_VMON 0x46 +#define TPS65912_LEDA_CTRL1 0x47 +#define TPS65912_LEDA_CTRL2 0x48 +#define TPS65912_LEDA_CTRL3 0x49 +#define TPS65912_LEDA_CTRL4 0x4A +#define TPS65912_LEDA_CTRL5 0x4B +#define TPS65912_LEDA_CTRL6 0x4C +#define TPS65912_LEDA_CTRL7 0x4D +#define TPS65912_LEDA_CTRL8 0x4E +#define TPS65912_LEDB_CTRL1 0x4F +#define TPS65912_LEDB_CTRL2 0x50 +#define TPS65912_LEDB_CTRL3 0x51 +#define TPS65912_LEDB_CTRL4 0x52 +#define TPS65912_LEDB_CTRL5 0x53 +#define TPS65912_LEDB_CTRL6 0x54 +#define TPS65912_LEDB_CTRL7 0x55 +#define TPS65912_LEDB_CTRL8 0x56 +#define TPS65912_LEDC_CTRL1 0x57 +#define TPS65912_LEDC_CTRL2 0x58 +#define TPS65912_LEDC_CTRL3 0x59 +#define TPS65912_LEDC_CTRL4 0x5A +#define TPS65912_LEDC_CTRL5 0x5B +#define TPS65912_LEDC_CTRL6 0x5C +#define TPS65912_LEDC_CTRL7 0x5D +#define TPS65912_LEDC_CTRL8 0x5E +#define TPS65912_LED_RAMP_UP_TIME 0x5F +#define TPS65912_LED_RAMP_DOWN_TIME 0x60 +#define TPS65912_LED_SEQ_EN 0x61 +#define TPS65912_LOADSWITCH 0x62 +#define TPS65912_SPARE 0x63 +#define TPS65912_VERNUM 0x64 +#define TPS6591X_MAX_REGISTER 0x64 + +/* IRQ Definitions */ +#define TPS65912_IRQ_PWRHOLD_F 0 +#define TPS65912_IRQ_VMON 1 +#define TPS65912_IRQ_PWRON 2 +#define TPS65912_IRQ_PWRON_LP 3 +#define TPS65912_IRQ_PWRHOLD_R 4 +#define TPS65912_IRQ_HOTDIE 5 +#define TPS65912_IRQ_GPIO1_R 6 +#define TPS65912_IRQ_GPIO1_F 7 +#define TPS65912_IRQ_GPIO2_R 8 +#define TPS65912_IRQ_GPIO2_F 9 +#define TPS65912_IRQ_GPIO3_R 10 +#define TPS65912_IRQ_GPIO3_F 11 +#define TPS65912_IRQ_GPIO4_R 12 +#define TPS65912_IRQ_GPIO4_F 13 +#define TPS65912_IRQ_GPIO5_R 14 +#define TPS65912_IRQ_GPIO5_F 15 +#define TPS65912_IRQ_PGOOD_DCDC1 16 +#define TPS65912_IRQ_PGOOD_DCDC2 17 +#define TPS65912_IRQ_PGOOD_DCDC3 18 +#define TPS65912_IRQ_PGOOD_DCDC4 19 +#define TPS65912_IRQ_PGOOD_LDO1 20 +#define TPS65912_IRQ_PGOOD_LDO2 21 +#define TPS65912_IRQ_PGOOD_LDO3 22 +#define TPS65912_IRQ_PGOOD_LDO4 23 +#define TPS65912_IRQ_PGOOD_LDO5 24 +#define TPS65912_IRQ_PGOOD_LDO6 25 +#define TPS65912_IRQ_PGOOD_LDO7 26 +#define TPS65912_IRQ_PGOOD_LD08 27 +#define TPS65912_IRQ_PGOOD_LDO9 28 +#define TPS65912_IRQ_PGOOD_LDO10 29 + +#define TPS65912_NUM_IRQ 30 + +/* GPIO 1 and 2 Register Definitions */ +#define GPIO_SLEEP_MASK 0x80 +#define GPIO_SLEEP_SHIFT 7 +#define GPIO_DEB_MASK 0x10 +#define GPIO_DEB_SHIFT 4 +#define GPIO_CFG_MASK 0x04 +#define GPIO_CFG_SHIFT 2 +#define GPIO_STS_MASK 0x02 +#define GPIO_STS_SHIFT 1 +#define GPIO_SET_MASK 0x01 +#define GPIO_SET_SHIFT 0 + +/* GPIO 3 Register Definitions */ +#define GPIO3_SLEEP_MASK 0x80 +#define GPIO3_SLEEP_SHIFT 7 +#define GPIO3_SEL_MASK 0x40 +#define GPIO3_SEL_SHIFT 6 +#define GPIO3_ODEN_MASK 0x20 +#define GPIO3_ODEN_SHIFT 5 +#define GPIO3_DEB_MASK 0x10 +#define GPIO3_DEB_SHIFT 4 +#define GPIO3_PDEN_MASK 0x08 +#define GPIO3_PDEN_SHIFT 3 +#define GPIO3_CFG_MASK 0x04 +#define GPIO3_CFG_SHIFT 2 +#define GPIO3_STS_MASK 0x02 +#define GPIO3_STS_SHIFT 1 +#define GPIO3_SET_MASK 0x01 +#define GPIO3_SET_SHIFT 0 + +/* GPIO 4 Register Definitions */ +#define GPIO4_SLEEP_MASK 0x80 +#define GPIO4_SLEEP_SHIFT 7 +#define GPIO4_SEL_MASK 0x40 +#define GPIO4_SEL_SHIFT 6 +#define GPIO4_ODEN_MASK 0x20 +#define GPIO4_ODEN_SHIFT 5 +#define GPIO4_DEB_MASK 0x10 +#define GPIO4_DEB_SHIFT 4 +#define GPIO4_PDEN_MASK 0x08 +#define GPIO4_PDEN_SHIFT 3 +#define GPIO4_CFG_MASK 0x04 +#define GPIO4_CFG_SHIFT 2 +#define GPIO4_STS_MASK 0x02 +#define GPIO4_STS_SHIFT 1 +#define GPIO4_SET_MASK 0x01 +#define GPIO4_SET_SHIFT 0 + +/* Register THERM (0x80) register.RegisterDescription */ +#define THERM_THERM_HD_MASK 0x20 +#define THERM_THERM_HD_SHIFT 5 +#define THERM_THERM_TS_MASK 0x10 +#define THERM_THERM_TS_SHIFT 4 +#define THERM_THERM_HDSEL_MASK 0x0C +#define THERM_THERM_HDSEL_SHIFT 2 +#define THERM_RSVD1_MASK 0x02 +#define THERM_RSVD1_SHIFT 1 +#define THERM_THERM_STATE_MASK 0x01 +#define THERM_THERM_STATE_SHIFT 0 + +/* Register DCDCCTRL1 register.RegisterDescription */ +#define DCDCCTRL_VCON_ENABLE_MASK 0x80 +#define DCDCCTRL_VCON_ENABLE_SHIFT 7 +#define DCDCCTRL_VCON_RANGE1_MASK 0x40 +#define DCDCCTRL_VCON_RANGE1_SHIFT 6 +#define DCDCCTRL_VCON_RANGE0_MASK 0x20 +#define DCDCCTRL_VCON_RANGE0_SHIFT 5 +#define DCDCCTRL_TSTEP2_MASK 0x10 +#define DCDCCTRL_TSTEP2_SHIFT 4 +#define DCDCCTRL_TSTEP1_MASK 0x08 +#define DCDCCTRL_TSTEP1_SHIFT 3 +#define DCDCCTRL_TSTEP0_MASK 0x04 +#define DCDCCTRL_TSTEP0_SHIFT 2 +#define DCDCCTRL_DCDC1_MODE_MASK 0x02 +#define DCDCCTRL_DCDC1_MODE_SHIFT 1 + +/* Register DCDCCTRL2 and DCDCCTRL3 register.RegisterDescription */ +#define DCDCCTRL_TSTEP2_MASK 0x10 +#define DCDCCTRL_TSTEP2_SHIFT 4 +#define DCDCCTRL_TSTEP1_MASK 0x08 +#define DCDCCTRL_TSTEP1_SHIFT 3 +#define DCDCCTRL_TSTEP0_MASK 0x04 +#define DCDCCTRL_TSTEP0_SHIFT 2 +#define DCDCCTRL_DCDC_MODE_MASK 0x02 +#define DCDCCTRL_DCDC_MODE_SHIFT 1 +#define DCDCCTRL_RSVD0_MASK 0x01 +#define DCDCCTRL_RSVD0_SHIFT 0 + +/* Register DCDCCTRL4 register.RegisterDescription */ +#define DCDCCTRL_RAMP_TIME_MASK 0x01 +#define DCDCCTRL_RAMP_TIME_SHIFT 0 + +/* Register DCDCx_AVS */ +#define DCDC_AVS_ENABLE_MASK 0x80 +#define DCDC_AVS_ENABLE_SHIFT 7 +#define DCDC_AVS_ECO_MASK 0x40 +#define DCDC_AVS_ECO_SHIFT 6 + +/* Register DCDCx_LIMIT */ +#define DCDC_LIMIT_RANGE_MASK 0xC0 +#define DCDC_LIMIT_RANGE_SHIFT 6 +#define DCDC_LIMIT_MAX_SEL_MASK 0x3F +#define DCDC_LIMIT_MAX_SEL_SHIFT 0 + +/** + * struct tps65912_board + * Board platform dat may be used to initialize regulators. + */ +struct tps65912_board { + int is_dcdc1_avs; + int is_dcdc2_avs; + int is_dcdc3_avs; + int is_dcdc4_avs; + struct regulator_init_data *tps65912_pmic_init_data; +}; + +/** + * struct tps65912 - tps65912 sub-driver chip access routines + */ + +struct tps65912 { + struct device *dev; + /* for read/write acces */ + struct mutex io_mutex; + + /* For device IO interfaces: I2C or SPI */ + void *control_data; + + int (*read)(struct tps65912 *tps65912, u8 reg, int size, void *dest); + int (*write)(struct tps65912 *tps65912, u8 reg, int size, void *src); + + /* Client devices */ + struct tps65912_pmic *pmic; + + /* GPIO Handling */ + struct gpio_chip gpio; + + /* IRQ Handling */ + struct mutex irq_lock; + int chip_irq; + int irq_base; + int irq_num; + u32 irq_mask; +}; + +struct tps65912_platform_data { + int irq_base; +}; + +unsigned int tps_chip(void); + +int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask); +int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask); +int tps65912_reg_read(struct tps65912 *tps65912, u8 reg); +int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val); +int tps65912_device_init(struct tps65912 *tps65912); +void tps65912_device_exit(struct tps65912 *tps65912); + +#endif /* __LINUX_MFD_TPS65912_H */ -- cgit v1.2.3 From d49a0f3f14a763242b71244019d7881ee06e0658 Mon Sep 17 00:00:00 2001 From: Margarita Olaya Date: Thu, 9 Jun 2011 14:50:13 -0500 Subject: tps65912: irq: add interrupt controller This module controls the interrupt handling for the tps65912. The interrupt sources can be the following: - GPIO - PWRON signal - PWRHOLD signal - Temperature detection Signed-off-by: Margarita Olaya Cabrera Acked-by: Samuel Ortiz Acked-by: Liam Girdwood Signed-off-by: Samuel Ortiz --- include/linux/mfd/tps65912.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/tps65912.h b/include/linux/mfd/tps65912.h index 48d3b53316a9..be60fb23b583 100644 --- a/include/linux/mfd/tps65912.h +++ b/include/linux/mfd/tps65912.h @@ -273,6 +273,8 @@ struct tps65912_board { int is_dcdc2_avs; int is_dcdc3_avs; int is_dcdc4_avs; + int irq; + int irq_base; struct regulator_init_data *tps65912_pmic_init_data; }; @@ -306,6 +308,7 @@ struct tps65912 { }; struct tps65912_platform_data { + int irq; int irq_base; }; @@ -317,5 +320,7 @@ int tps65912_reg_read(struct tps65912 *tps65912, u8 reg); int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val); int tps65912_device_init(struct tps65912 *tps65912); void tps65912_device_exit(struct tps65912 *tps65912); +int tps65912_irq_init(struct tps65912 *tps65912, int irq, + struct tps65912_platform_data *pdata); #endif /* __LINUX_MFD_TPS65912_H */ -- cgit v1.2.3 From 668a6cc710ee054af2b059d27bbec746ead0fbca Mon Sep 17 00:00:00 2001 From: Margarita Olaya Date: Thu, 9 Jun 2011 14:50:19 -0500 Subject: tps65912: gpio: add gpio driver TPS65912 has five GPIOs that can be configured for different purposes. Signed-off-by: Margarita Olaya Cabrera Acked-by: Grant Likely Acked-by: Liam Girdwood Signed-off-by: Samuel Ortiz --- include/linux/mfd/tps65912.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mfd/tps65912.h b/include/linux/mfd/tps65912.h index be60fb23b583..aaceab402ec5 100644 --- a/include/linux/mfd/tps65912.h +++ b/include/linux/mfd/tps65912.h @@ -275,6 +275,7 @@ struct tps65912_board { int is_dcdc4_avs; int irq; int irq_base; + int gpio_base; struct regulator_init_data *tps65912_pmic_init_data; }; -- cgit v1.2.3 From 0a1b089738cf2165ee8678e2483fce3c40389d4a Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 9 Jun 2011 23:57:57 +0200 Subject: mfd: Clean-up ab8500 register file This adds a previously undefined test register and removed a number of double-defined accessory detect registers (they are already defined higher up in the file. Signed-off-by: Linus Walleij Signed-off-by: Samuel Ortiz --- include/linux/mfd/ab8500.h | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) (limited to 'include') diff --git a/include/linux/mfd/ab8500.h b/include/linux/mfd/ab8500.h index b31843075198..838c6b487cc5 100644 --- a/include/linux/mfd/ab8500.h +++ b/include/linux/mfd/ab8500.h @@ -28,6 +28,7 @@ #define AB8500_INTERRUPT 0xE #define AB8500_RTC 0xF #define AB8500_MISC 0x10 +#define AB8500_DEVELOPMENT 0x11 #define AB8500_DEBUG 0x12 #define AB8500_PROD_TEST 0x13 #define AB8500_OTP_EMUL 0x15 @@ -74,13 +75,6 @@ #define AB8500_INT_ACC_DETECT_21DB_F 37 #define AB8500_INT_ACC_DETECT_21DB_R 38 #define AB8500_INT_GP_SW_ADC_CONV_END 39 -#define AB8500_INT_ACC_DETECT_1DB_F 33 -#define AB8500_INT_ACC_DETECT_1DB_R 34 -#define AB8500_INT_ACC_DETECT_22DB_F 35 -#define AB8500_INT_ACC_DETECT_22DB_R 36 -#define AB8500_INT_ACC_DETECT_21DB_F 37 -#define AB8500_INT_ACC_DETECT_21DB_R 38 -#define AB8500_INT_GP_SW_ADC_CONV_END 39 #define AB8500_INT_GPIO6R 40 #define AB8500_INT_GPIO7R 41 #define AB8500_INT_GPIO8R 42 -- cgit v1.2.3 From ec2328c30bf09fe31e77889090eeb1a965325f53 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 20 Jun 2011 11:47:55 +0100 Subject: mfd: Implement tps65910 IRQ cleanup The tps65910_irq_exit() cleanup function was generating a warning from sparse due to the lack of a prototype. This wasn't causing GCC warnings as the driver wasn't cleaning up its IRQs on exit at all so there was no use of an unprototyped function. Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- include/linux/mfd/tps65910.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h index 73572c65d04f..82b4c8801a4f 100644 --- a/include/linux/mfd/tps65910.h +++ b/include/linux/mfd/tps65910.h @@ -791,6 +791,7 @@ int tps65910_clear_bits(struct tps65910 *tps65910, u8 reg, u8 mask); void tps65910_gpio_init(struct tps65910 *tps65910, int gpio_base); int tps65910_irq_init(struct tps65910 *tps65910, int irq, struct tps65910_platform_data *pdata); +int tps65910_irq_exit(struct tps65910 *tps65910); static inline int tps65910_chip_id(struct tps65910 *tps65910) { -- cgit v1.2.3 From c7e1da477293b4b5e0bef3639b3734e28d5d55f7 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 21 Jun 2011 11:12:23 +0100 Subject: mfd: Add WM831x clock control register definitions Signed-off-by: Mark Brown Signed-off-by: Samuel Ortiz --- include/linux/mfd/wm831x/core.h | 101 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 101 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/wm831x/core.h b/include/linux/mfd/wm831x/core.h index 9fa14cdc1590..8dda8ded5cda 100644 --- a/include/linux/mfd/wm831x/core.h +++ b/include/linux/mfd/wm831x/core.h @@ -235,6 +235,107 @@ #define WM831X_ON_PIN_TO_SHIFT 0 /* ON_PIN_TO - [1:0] */ #define WM831X_ON_PIN_TO_WIDTH 2 /* ON_PIN_TO - [1:0] */ +/* + * R16528 (0x4090) - Clock Control 1 + */ +#define WM831X_CLKOUT_ENA 0x8000 /* CLKOUT_ENA */ +#define WM831X_CLKOUT_ENA_MASK 0x8000 /* CLKOUT_ENA */ +#define WM831X_CLKOUT_ENA_SHIFT 15 /* CLKOUT_ENA */ +#define WM831X_CLKOUT_ENA_WIDTH 1 /* CLKOUT_ENA */ +#define WM831X_CLKOUT_OD 0x2000 /* CLKOUT_OD */ +#define WM831X_CLKOUT_OD_MASK 0x2000 /* CLKOUT_OD */ +#define WM831X_CLKOUT_OD_SHIFT 13 /* CLKOUT_OD */ +#define WM831X_CLKOUT_OD_WIDTH 1 /* CLKOUT_OD */ +#define WM831X_CLKOUT_SLOT_MASK 0x0700 /* CLKOUT_SLOT - [10:8] */ +#define WM831X_CLKOUT_SLOT_SHIFT 8 /* CLKOUT_SLOT - [10:8] */ +#define WM831X_CLKOUT_SLOT_WIDTH 3 /* CLKOUT_SLOT - [10:8] */ +#define WM831X_CLKOUT_SLPSLOT_MASK 0x0070 /* CLKOUT_SLPSLOT - [6:4] */ +#define WM831X_CLKOUT_SLPSLOT_SHIFT 4 /* CLKOUT_SLPSLOT - [6:4] */ +#define WM831X_CLKOUT_SLPSLOT_WIDTH 3 /* CLKOUT_SLPSLOT - [6:4] */ +#define WM831X_CLKOUT_SRC 0x0001 /* CLKOUT_SRC */ +#define WM831X_CLKOUT_SRC_MASK 0x0001 /* CLKOUT_SRC */ +#define WM831X_CLKOUT_SRC_SHIFT 0 /* CLKOUT_SRC */ +#define WM831X_CLKOUT_SRC_WIDTH 1 /* CLKOUT_SRC */ + +/* + * R16529 (0x4091) - Clock Control 2 + */ +#define WM831X_XTAL_INH 0x8000 /* XTAL_INH */ +#define WM831X_XTAL_INH_MASK 0x8000 /* XTAL_INH */ +#define WM831X_XTAL_INH_SHIFT 15 /* XTAL_INH */ +#define WM831X_XTAL_INH_WIDTH 1 /* XTAL_INH */ +#define WM831X_XTAL_ENA 0x2000 /* XTAL_ENA */ +#define WM831X_XTAL_ENA_MASK 0x2000 /* XTAL_ENA */ +#define WM831X_XTAL_ENA_SHIFT 13 /* XTAL_ENA */ +#define WM831X_XTAL_ENA_WIDTH 1 /* XTAL_ENA */ +#define WM831X_XTAL_BKUPENA 0x1000 /* XTAL_BKUPENA */ +#define WM831X_XTAL_BKUPENA_MASK 0x1000 /* XTAL_BKUPENA */ +#define WM831X_XTAL_BKUPENA_SHIFT 12 /* XTAL_BKUPENA */ +#define WM831X_XTAL_BKUPENA_WIDTH 1 /* XTAL_BKUPENA */ +#define WM831X_FLL_AUTO 0x0080 /* FLL_AUTO */ +#define WM831X_FLL_AUTO_MASK 0x0080 /* FLL_AUTO */ +#define WM831X_FLL_AUTO_SHIFT 7 /* FLL_AUTO */ +#define WM831X_FLL_AUTO_WIDTH 1 /* FLL_AUTO */ +#define WM831X_FLL_AUTO_FREQ_MASK 0x0007 /* FLL_AUTO_FREQ - [2:0] */ +#define WM831X_FLL_AUTO_FREQ_SHIFT 0 /* FLL_AUTO_FREQ - [2:0] */ +#define WM831X_FLL_AUTO_FREQ_WIDTH 3 /* FLL_AUTO_FREQ - [2:0] */ + +/* + * R16530 (0x4092) - FLL Control 1 + */ +#define WM831X_FLL_FRAC 0x0004 /* FLL_FRAC */ +#define WM831X_FLL_FRAC_MASK 0x0004 /* FLL_FRAC */ +#define WM831X_FLL_FRAC_SHIFT 2 /* FLL_FRAC */ +#define WM831X_FLL_FRAC_WIDTH 1 /* FLL_FRAC */ +#define WM831X_FLL_OSC_ENA 0x0002 /* FLL_OSC_ENA */ +#define WM831X_FLL_OSC_ENA_MASK 0x0002 /* FLL_OSC_ENA */ +#define WM831X_FLL_OSC_ENA_SHIFT 1 /* FLL_OSC_ENA */ +#define WM831X_FLL_OSC_ENA_WIDTH 1 /* FLL_OSC_ENA */ +#define WM831X_FLL_ENA 0x0001 /* FLL_ENA */ +#define WM831X_FLL_ENA_MASK 0x0001 /* FLL_ENA */ +#define WM831X_FLL_ENA_SHIFT 0 /* FLL_ENA */ +#define WM831X_FLL_ENA_WIDTH 1 /* FLL_ENA */ + +/* + * R16531 (0x4093) - FLL Control 2 + */ +#define WM831X_FLL_OUTDIV_MASK 0x3F00 /* FLL_OUTDIV - [13:8] */ +#define WM831X_FLL_OUTDIV_SHIFT 8 /* FLL_OUTDIV - [13:8] */ +#define WM831X_FLL_OUTDIV_WIDTH 6 /* FLL_OUTDIV - [13:8] */ +#define WM831X_FLL_CTRL_RATE_MASK 0x0070 /* FLL_CTRL_RATE - [6:4] */ +#define WM831X_FLL_CTRL_RATE_SHIFT 4 /* FLL_CTRL_RATE - [6:4] */ +#define WM831X_FLL_CTRL_RATE_WIDTH 3 /* FLL_CTRL_RATE - [6:4] */ +#define WM831X_FLL_FRATIO_MASK 0x0007 /* FLL_FRATIO - [2:0] */ +#define WM831X_FLL_FRATIO_SHIFT 0 /* FLL_FRATIO - [2:0] */ +#define WM831X_FLL_FRATIO_WIDTH 3 /* FLL_FRATIO - [2:0] */ + +/* + * R16532 (0x4094) - FLL Control 3 + */ +#define WM831X_FLL_K_MASK 0xFFFF /* FLL_K - [15:0] */ +#define WM831X_FLL_K_SHIFT 0 /* FLL_K - [15:0] */ +#define WM831X_FLL_K_WIDTH 16 /* FLL_K - [15:0] */ + +/* + * R16533 (0x4095) - FLL Control 4 + */ +#define WM831X_FLL_N_MASK 0x7FE0 /* FLL_N - [14:5] */ +#define WM831X_FLL_N_SHIFT 5 /* FLL_N - [14:5] */ +#define WM831X_FLL_N_WIDTH 10 /* FLL_N - [14:5] */ +#define WM831X_FLL_GAIN_MASK 0x000F /* FLL_GAIN - [3:0] */ +#define WM831X_FLL_GAIN_SHIFT 0 /* FLL_GAIN - [3:0] */ +#define WM831X_FLL_GAIN_WIDTH 4 /* FLL_GAIN - [3:0] */ + +/* + * R16534 (0x4096) - FLL Control 5 + */ +#define WM831X_FLL_CLK_REF_DIV_MASK 0x0018 /* FLL_CLK_REF_DIV - [4:3] */ +#define WM831X_FLL_CLK_REF_DIV_SHIFT 3 /* FLL_CLK_REF_DIV - [4:3] */ +#define WM831X_FLL_CLK_REF_DIV_WIDTH 2 /* FLL_CLK_REF_DIV - [4:3] */ +#define WM831X_FLL_CLK_SRC_MASK 0x0003 /* FLL_CLK_SRC - [1:0] */ +#define WM831X_FLL_CLK_SRC_SHIFT 0 /* FLL_CLK_SRC - [1:0] */ +#define WM831X_FLL_CLK_SRC_WIDTH 2 /* FLL_CLK_SRC - [1:0] */ + struct regulator_dev; #define WM831X_NUM_IRQ_REGS 5 -- cgit v1.2.3 From 4dcaa6b6df354fa44b3072bed3cb13aad7e5fbd4 Mon Sep 17 00:00:00 2001 From: Om Prakash Date: Mon, 27 Jun 2011 09:54:22 +0200 Subject: mfd: Fix missing stmpe kerneldoc Generating kerneldoc for STMPE result in warnings, so fix this by adding missing documentation. Signed-off-by: Om Prakash Reviewed-by: Rabin Vincent Reviewed-by: Jonas Aberg Reviewed-by: Srinidhi Kasagar Signed-off-by: Linus Walleij Signed-off-by: Samuel Ortiz --- include/linux/mfd/stmpe.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/mfd/stmpe.h b/include/linux/mfd/stmpe.h index e762c270d8d4..be1af7c42e57 100644 --- a/include/linux/mfd/stmpe.h +++ b/include/linux/mfd/stmpe.h @@ -57,6 +57,7 @@ struct stmpe_variant_info; * @irq_lock: IRQ bus lock * @dev: device, mostly for dev_dbg() * @i2c: i2c client + * @partnum: part number * @variant: the detected STMPE model number * @regs: list of addresses of registers which are at different addresses on * different variants. Indexed by one of STMPE_IDX_*. @@ -121,6 +122,8 @@ struct stmpe_keypad_platform_data { * @norequest_mask: bitmask specifying which GPIOs should _not_ be * requestable due to different usage (e.g. touch, keypad) * STMPE_GPIO_NOREQ_* macros can be used here. + * @setup: board specific setup callback. + * @remove: board specific remove callback */ struct stmpe_gpio_platform_data { int gpio_base; -- cgit v1.2.3 From 09d6292befba8c6319d9471803149573ea6ed170 Mon Sep 17 00:00:00 2001 From: Jin Park Date: Mon, 4 Jul 2011 19:48:12 +0200 Subject: mfd: Add AAT2870 mfd driver Add mfd core driver for AnalogicTech AAT2870. The AAT2870 is communication through I2C and contains backlight and regulator components. Signed-off-by: Jin Park Signed-off-by: Samuel Ortiz --- include/linux/mfd/aat2870.h | 181 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 181 insertions(+) create mode 100644 include/linux/mfd/aat2870.h (limited to 'include') diff --git a/include/linux/mfd/aat2870.h b/include/linux/mfd/aat2870.h new file mode 100644 index 000000000000..89212df05622 --- /dev/null +++ b/include/linux/mfd/aat2870.h @@ -0,0 +1,181 @@ +/* + * linux/include/linux/mfd/aat2870.h + * + * Copyright (c) 2011, NVIDIA Corporation. + * Author: Jin Park + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef __LINUX_MFD_AAT2870_H +#define __LINUX_MFD_AAT2870_H + +#include +#include + +/* Register offsets */ +#define AAT2870_BL_CH_EN 0x00 +#define AAT2870_BLM 0x01 +#define AAT2870_BLS 0x02 +#define AAT2870_BL1 0x03 +#define AAT2870_BL2 0x04 +#define AAT2870_BL3 0x05 +#define AAT2870_BL4 0x06 +#define AAT2870_BL5 0x07 +#define AAT2870_BL6 0x08 +#define AAT2870_BL7 0x09 +#define AAT2870_BL8 0x0A +#define AAT2870_FLR 0x0B +#define AAT2870_FM 0x0C +#define AAT2870_FS 0x0D +#define AAT2870_ALS_CFG0 0x0E +#define AAT2870_ALS_CFG1 0x0F +#define AAT2870_ALS_CFG2 0x10 +#define AAT2870_AMB 0x11 +#define AAT2870_ALS0 0x12 +#define AAT2870_ALS1 0x13 +#define AAT2870_ALS2 0x14 +#define AAT2870_ALS3 0x15 +#define AAT2870_ALS4 0x16 +#define AAT2870_ALS5 0x17 +#define AAT2870_ALS6 0x18 +#define AAT2870_ALS7 0x19 +#define AAT2870_ALS8 0x1A +#define AAT2870_ALS9 0x1B +#define AAT2870_ALSA 0x1C +#define AAT2870_ALSB 0x1D +#define AAT2870_ALSC 0x1E +#define AAT2870_ALSD 0x1F +#define AAT2870_ALSE 0x20 +#define AAT2870_ALSF 0x21 +#define AAT2870_SUB_SET 0x22 +#define AAT2870_SUB_CTRL 0x23 +#define AAT2870_LDO_AB 0x24 +#define AAT2870_LDO_CD 0x25 +#define AAT2870_LDO_EN 0x26 +#define AAT2870_REG_NUM 0x27 + +/* Device IDs */ +enum aat2870_id { + AAT2870_ID_BL, + AAT2870_ID_LDOA, + AAT2870_ID_LDOB, + AAT2870_ID_LDOC, + AAT2870_ID_LDOD +}; + +/* Backlight channels */ +#define AAT2870_BL_CH1 0x01 +#define AAT2870_BL_CH2 0x02 +#define AAT2870_BL_CH3 0x04 +#define AAT2870_BL_CH4 0x08 +#define AAT2870_BL_CH5 0x10 +#define AAT2870_BL_CH6 0x20 +#define AAT2870_BL_CH7 0x40 +#define AAT2870_BL_CH8 0x80 +#define AAT2870_BL_CH_ALL 0xFF + +/* Backlight current magnitude (mA) */ +enum aat2870_current { + AAT2870_CURRENT_0_45, + AAT2870_CURRENT_0_90, + AAT2870_CURRENT_1_80, + AAT2870_CURRENT_2_70, + AAT2870_CURRENT_3_60, + AAT2870_CURRENT_4_50, + AAT2870_CURRENT_5_40, + AAT2870_CURRENT_6_30, + AAT2870_CURRENT_7_20, + AAT2870_CURRENT_8_10, + AAT2870_CURRENT_9_00, + AAT2870_CURRENT_9_90, + AAT2870_CURRENT_10_8, + AAT2870_CURRENT_11_7, + AAT2870_CURRENT_12_6, + AAT2870_CURRENT_13_5, + AAT2870_CURRENT_14_4, + AAT2870_CURRENT_15_3, + AAT2870_CURRENT_16_2, + AAT2870_CURRENT_17_1, + AAT2870_CURRENT_18_0, + AAT2870_CURRENT_18_9, + AAT2870_CURRENT_19_8, + AAT2870_CURRENT_20_7, + AAT2870_CURRENT_21_6, + AAT2870_CURRENT_22_5, + AAT2870_CURRENT_23_4, + AAT2870_CURRENT_24_3, + AAT2870_CURRENT_25_2, + AAT2870_CURRENT_26_1, + AAT2870_CURRENT_27_0, + AAT2870_CURRENT_27_9 +}; + +struct aat2870_register { + bool readable; + bool writeable; + u8 value; +}; + +struct aat2870_data { + struct device *dev; + struct i2c_client *client; + + struct mutex io_lock; + struct aat2870_register *reg_cache; /* register cache */ + int en_pin; /* enable GPIO pin (if < 0, ignore this value) */ + bool is_enable; + + /* init and uninit for platform specified */ + int (*init)(struct aat2870_data *aat2870); + void (*uninit)(struct aat2870_data *aat2870); + + /* i2c io funcntions */ + int (*read)(struct aat2870_data *aat2870, u8 addr, u8 *val); + int (*write)(struct aat2870_data *aat2870, u8 addr, u8 val); + int (*update)(struct aat2870_data *aat2870, u8 addr, u8 mask, u8 val); + + /* for debugfs */ + struct dentry *dentry_root; + struct dentry *dentry_reg; +}; + +struct aat2870_subdev_info { + int id; + const char *name; + void *platform_data; +}; + +struct aat2870_platform_data { + int en_pin; /* enable GPIO pin (if < 0, ignore this value) */ + + struct aat2870_subdev_info *subdevs; + int num_subdevs; + + /* init and uninit for platform specified */ + int (*init)(struct aat2870_data *aat2870); + void (*uninit)(struct aat2870_data *aat2870); +}; + +struct aat2870_bl_platform_data { + /* backlight channels, default is AAT2870_BL_CH_ALL */ + int channels; + /* backlight current magnitude, default is AAT2870_CURRENT_27_9 */ + int max_current; + /* maximum brightness, default is 255 */ + int max_brightness; +}; + +#endif /* __LINUX_MFD_AAT2870_H */ -- cgit v1.2.3 From a00ed25cce6fe856388f89c7cd40da0eee7666a6 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 31 Jul 2011 16:39:04 -0400 Subject: NFS: Re-enable compilation of nfs with !CONFIG_NFS_V4 || !CONFIG_NFS_V4_1 Fix two recently introduced compile problems: Fix a typo in fs/nfs/pnfs.h Move the pnfs_blksize declaration outside the CONFIG_NFS_V4 section in struct nfs_server. Reported-by: Jens Axboe Signed-off-by: Trond Myklebust Signed-off-by: Linus Torvalds --- include/linux/nfs_fs_sb.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index 82fdfc7987d6..b5479df8378d 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -131,6 +131,7 @@ struct nfs_server { struct fscache_cookie *fscache; /* superblock cookie */ #endif + u32 pnfs_blksize; /* layout_blksize attr */ #ifdef CONFIG_NFS_V4 u32 attr_bitmask[3];/* V4 bitmask representing the set of attributes supported on this @@ -145,7 +146,6 @@ struct nfs_server { filesystem */ struct pnfs_layoutdriver_type *pnfs_curr_ld; /* Active layout driver */ struct rpc_wait_queue roc_rpcwaitq; - u32 pnfs_blksize; /* layout_blksize attr */ void *pnfs_ld_data; /* per mount point data */ /* the following fields are protected by nfs_client->cl_lock */ -- cgit v1.2.3 From f2ee7abf4c40c8e6bffced923a7c01ea2d1f6c97 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 28 Jul 2011 06:41:09 +0200 Subject: vfs: avoid taking inode_hash_lock on pipes and sockets Some inodes (pipes, sockets, ...) are not hashed, no need to take contended inode_hash_lock at dismantle time. nice speedup on SMP machines on socket intensive workloads. Signed-off-by: Eric Dumazet Signed-off-by: Al Viro --- include/linux/fs.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index f23bcb77260c..786b3b1113cf 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2317,11 +2317,18 @@ extern int should_remove_suid(struct dentry *); extern int file_remove_suid(struct file *); extern void __insert_inode_hash(struct inode *, unsigned long hashval); -extern void remove_inode_hash(struct inode *); static inline void insert_inode_hash(struct inode *inode) { __insert_inode_hash(inode, inode->i_ino); } + +extern void __remove_inode_hash(struct inode *); +static inline void remove_inode_hash(struct inode *inode) +{ + if (!inode_unhashed(inode)) + __remove_inode_hash(inode); +} + extern void inode_sb_list_add(struct inode *inode); #ifdef CONFIG_BLOCK -- cgit v1.2.3 From d3fb612076eebec6f67257db0c7a9666ac7e5892 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Jul 2011 18:37:50 -0400 Subject: switch posix_acl_create() to umode_t * so we can pass &inode->i_mode to it Signed-off-by: Al Viro --- include/linux/nfs_fs.h | 4 ++-- include/linux/posix_acl.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 8b579beb6358..dda2ac8a5f7b 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -568,12 +568,12 @@ extern struct posix_acl *nfs3_proc_getacl(struct inode *inode, int type); extern int nfs3_proc_setacl(struct inode *inode, int type, struct posix_acl *acl); extern int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode, - mode_t mode); + umode_t mode); extern void nfs3_forget_cached_acls(struct inode *inode); #else static inline int nfs3_proc_set_default_acl(struct inode *dir, struct inode *inode, - mode_t mode) + umode_t mode) { return 0; } diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 9a53b99818e2..bd8d0050d725 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -77,7 +77,7 @@ extern int posix_acl_valid(const struct posix_acl *); extern int posix_acl_permission(struct inode *, const struct posix_acl *, int); extern struct posix_acl *posix_acl_from_mode(mode_t, gfp_t); extern int posix_acl_equiv_mode(const struct posix_acl *, mode_t *); -extern int posix_acl_create(struct posix_acl **, gfp_t, mode_t *); +extern int posix_acl_create(struct posix_acl **, gfp_t, umode_t *); extern int posix_acl_chmod(struct posix_acl **, gfp_t, mode_t); extern struct posix_acl *get_posix_acl(struct inode *, int); -- cgit v1.2.3 From d6952123b53cc8b334df69bba2cd0063b0d88f68 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Jul 2011 18:56:36 -0400 Subject: switch posix_acl_equiv_mode() to umode_t * ... so that &inode->i_mode could be passed to it Signed-off-by: Al Viro --- include/linux/posix_acl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index bd8d0050d725..529c32ad58c0 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -76,7 +76,7 @@ extern struct posix_acl *posix_acl_alloc(int, gfp_t); extern int posix_acl_valid(const struct posix_acl *); extern int posix_acl_permission(struct inode *, const struct posix_acl *, int); extern struct posix_acl *posix_acl_from_mode(mode_t, gfp_t); -extern int posix_acl_equiv_mode(const struct posix_acl *, mode_t *); +extern int posix_acl_equiv_mode(const struct posix_acl *, umode_t *); extern int posix_acl_create(struct posix_acl **, gfp_t, umode_t *); extern int posix_acl_chmod(struct posix_acl **, gfp_t, mode_t); -- cgit v1.2.3 From 3a5fba19b080b365d67866db38e32e6a4a2089e8 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Jul 2011 19:01:48 -0400 Subject: switch posix_acl_from_mode() to umode_t ... seeing that this is what all callers pass to it anyway. Signed-off-by: Al Viro --- include/linux/posix_acl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 529c32ad58c0..16ecfb485d28 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -75,7 +75,7 @@ extern void posix_acl_init(struct posix_acl *, int); extern struct posix_acl *posix_acl_alloc(int, gfp_t); extern int posix_acl_valid(const struct posix_acl *); extern int posix_acl_permission(struct inode *, const struct posix_acl *, int); -extern struct posix_acl *posix_acl_from_mode(mode_t, gfp_t); +extern struct posix_acl *posix_acl_from_mode(umode_t, gfp_t); extern int posix_acl_equiv_mode(const struct posix_acl *, umode_t *); extern int posix_acl_create(struct posix_acl **, gfp_t, umode_t *); extern int posix_acl_chmod(struct posix_acl **, gfp_t, mode_t); -- cgit v1.2.3 From 86bc704db0ab7e69230f79bc7d124e063259abc6 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 23 Jul 2011 19:03:11 -0400 Subject: switch posix_acl_chmod() to umode_t again, that's what all callers pass to it Signed-off-by: Al Viro --- include/linux/posix_acl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 16ecfb485d28..951bba82d50d 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -78,7 +78,7 @@ extern int posix_acl_permission(struct inode *, const struct posix_acl *, int); extern struct posix_acl *posix_acl_from_mode(umode_t, gfp_t); extern int posix_acl_equiv_mode(const struct posix_acl *, umode_t *); extern int posix_acl_create(struct posix_acl **, gfp_t, umode_t *); -extern int posix_acl_chmod(struct posix_acl **, gfp_t, mode_t); +extern int posix_acl_chmod(struct posix_acl **, gfp_t, umode_t); extern struct posix_acl *get_posix_acl(struct inode *, int); extern int set_posix_acl(struct inode *, int, struct posix_acl *); -- cgit v1.2.3 From b03e7495a862b028294f59fc87286d6d78ee7fa1 Mon Sep 17 00:00:00 2001 From: Jon Mason Date: Wed, 20 Jul 2011 15:20:54 -0500 Subject: PCI: Set PCI-E Max Payload Size on fabric On a given PCI-E fabric, each device, bridge, and root port can have a different PCI-E maximum payload size. There is a sizable performance boost for having the largest possible maximum payload size on each PCI-E device. However, if improperly configured, fatal bus errors can occur. Thus, it is important to ensure that PCI-E payloads sends by a device are never larger than the MPS setting of all devices on the way to the destination. This can be achieved two ways: - A conservative approach is to use the smallest common denominator of the entire tree below a root complex for every device on that fabric. This means for example that having a 128 bytes MPS USB controller on one leg of a switch will dramatically reduce performances of a video card or 10GE adapter on another leg of that same switch. It also means that any hierarchy supporting hotplug slots (including expresscard or thunderbolt I suppose, dbl check that) will have to be entirely clamped to 128 bytes since we cannot predict what will be plugged into those slots, and we cannot change the MPS on a "live" system. - A more optimal way is possible, if it falls within a couple of constraints: * The top-level host bridge will never generate packets larger than the smallest TLP (or if it can be controlled independently from its MPS at least) * The device will never generate packets larger than MPS (which can be configured via MRRS) * No support of direct PCI-E <-> PCI-E transfers between devices without some additional code to specifically deal with that case Then we can use an approach that basically ignores downstream requests and focuses exclusively on upstream requests. In that case, all we need to care about is that a device MPS is no larger than its parent MPS, which allows us to keep all switches/bridges to the max MPS supported by their parent and eventually the PHB. In this case, your USB controller would no longer "starve" your 10GE Ethernet and your hotplug slots won't affect your global MPS. Additionally, the hotplugged devices themselves can be configured to a larger MPS up to the value configured in the hotplug bridge. To choose between the two available options, two PCI kernel boot args have been added to the PCI calls. "pcie_bus_safe" will provide the former behavior, while "pcie_bus_perf" will perform the latter behavior. By default, the latter behavior is used. NOTE: due to the location of the enablement, each arch will need to add calls to this function. This patch only enables x86. This patch includes a number of changes recommended by Benjamin Herrenschmidt. Tested-by: Jordan_Hargrave@dell.com Signed-off-by: Jon Mason Signed-off-by: Jesse Barnes --- include/linux/pci.h | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index f27893b3b724..1ff9bbafd932 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -251,7 +251,8 @@ struct pci_dev { u8 revision; /* PCI revision, low byte of class word */ u8 hdr_type; /* PCI header type (`multi' flag masked out) */ u8 pcie_cap; /* PCI-E capability offset */ - u8 pcie_type; /* PCI-E device/port type */ + u8 pcie_type:4; /* PCI-E device/port type */ + u8 pcie_mpss:3; /* PCI-E Max Payload Size Supported */ u8 rom_base_reg; /* which config register controls the ROM */ u8 pin; /* which interrupt pin this device uses */ @@ -617,6 +618,16 @@ struct pci_driver { /* these external functions are only available when PCI support is enabled */ #ifdef CONFIG_PCI +extern void pcie_bus_configure_settings(struct pci_bus *bus, u8 smpss); + +enum pcie_bus_config_types { + PCIE_BUS_PERFORMANCE, + PCIE_BUS_SAFE, + PCIE_BUS_PEER2PEER, +}; + +extern enum pcie_bus_config_types pcie_bus_config; + extern struct bus_type pci_bus_type; /* Do NOT directly access these two variables, unless you are arch specific pci @@ -796,6 +807,8 @@ int pcix_get_mmrbc(struct pci_dev *dev); int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc); int pcie_get_readrq(struct pci_dev *dev); int pcie_set_readrq(struct pci_dev *dev, int rq); +int pcie_get_mps(struct pci_dev *dev); +int pcie_set_mps(struct pci_dev *dev, int mps); int __pci_reset_function(struct pci_dev *dev); int pci_reset_function(struct pci_dev *dev); void pci_update_resource(struct pci_dev *dev, int resno); -- cgit v1.2.3 From 2bbc6942273b5b3097bd265d82227bdd84b351b2 Mon Sep 17 00:00:00 2001 From: Ram Pai Date: Mon, 25 Jul 2011 13:08:39 -0700 Subject: PCI : ability to relocate assigned pci-resources Currently pci-bridges are allocated enough resources to satisfy their immediate requirements. Any additional resource-requests fail if additional free space, contiguous to the one already allocated, is not available. This behavior is not reasonable since sufficient contiguous resources, that can satisfy the request, are available at a different location. This patch provides the ability to expand and relocate a allocated resource. v2: Changelog: Fixed size calculation in pci_reassign_resource() v3: Changelog : Split this patch. The resource.c changes are already upstream. All the pci driver changes are in here. Signed-off-by: Ram Pai Signed-off-by: Jesse Barnes --- include/linux/pci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/pci.h b/include/linux/pci.h index 1ff9bbafd932..8c230cbcbb48 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -813,6 +813,7 @@ int __pci_reset_function(struct pci_dev *dev); int pci_reset_function(struct pci_dev *dev); void pci_update_resource(struct pci_dev *dev, int resno); int __must_check pci_assign_resource(struct pci_dev *dev, int i); +int __must_check pci_reassign_resource(struct pci_dev *dev, int i, resource_size_t add_size, resource_size_t align); int pci_select_bars(struct pci_dev *dev, unsigned long flags); /* ROM control related routines */ -- cgit v1.2.3 From 82c21bfab41a77bc01affe21bea9727d776774a7 Mon Sep 17 00:00:00 2001 From: Paul Moore Date: Mon, 1 Aug 2011 11:10:33 +0000 Subject: doc: Update the email address for Paul Moore in various source files My @hp.com will no longer be valid starting August 5, 2011 so an update is necessary. My new email address is employer independent so we don't have to worry about doing this again any time soon. Signed-off-by: Paul Moore Signed-off-by: Paul Moore Signed-off-by: David S. Miller --- include/net/cipso_ipv4.h | 2 +- include/net/netlabel.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/net/cipso_ipv4.h b/include/net/cipso_ipv4.h index 3b938743514b..9808877c2ab9 100644 --- a/include/net/cipso_ipv4.h +++ b/include/net/cipso_ipv4.h @@ -8,7 +8,7 @@ * have chosen to adopt the protocol and over the years it has become a * de-facto standard for labeled networking. * - * Author: Paul Moore + * Author: Paul Moore * */ diff --git a/include/net/netlabel.h b/include/net/netlabel.h index f21a16ee3705..f67440970d7e 100644 --- a/include/net/netlabel.h +++ b/include/net/netlabel.h @@ -4,7 +4,7 @@ * The NetLabel system manages static and dynamic label mappings for network * protocols such as CIPSO and RIPSO. * - * Author: Paul Moore + * Author: Paul Moore * */ -- cgit v1.2.3 From a6e50b409d3f9e0833e69c3c9cca822e8fa4adbb Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Tue, 2 Aug 2011 12:32:04 +0100 Subject: dm snapshot: skip reading origin when overwriting complete chunk If we write a full chunk in the snapshot, skip reading the origin device because the whole chunk will be overwritten anyway. This patch changes the snapshot write logic when a full chunk is written. In this case: 1. allocate the exception 2. dispatch the bio (but don't report the bio completion to device mapper) 3. write the exception record 4. report bio completed Callbacks must be done through the kcopyd thread, because callbacks must not race with each other. So we create two new functions: dm_kcopyd_prepare_callback: allocate a job structure and prepare the callback. (This function must not be called from interrupt context.) dm_kcopyd_do_callback: submit callback. (This function may be called from interrupt context.) Performance test (on snapshots with 4k chunk size): without the patch: non-direct-io sequential write (dd): 17.7MB/s direct-io sequential write (dd): 20.9MB/s non-direct-io random write (mkfs.ext2): 0.44s with the patch: non-direct-io sequential write (dd): 26.5MB/s direct-io sequential write (dd): 33.2MB/s non-direct-io random write (mkfs.ext2): 0.27s Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon --- include/linux/dm-kcopyd.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'include') diff --git a/include/linux/dm-kcopyd.h b/include/linux/dm-kcopyd.h index 298d587e349b..5e54458e920f 100644 --- a/include/linux/dm-kcopyd.h +++ b/include/linux/dm-kcopyd.h @@ -42,5 +42,20 @@ int dm_kcopyd_copy(struct dm_kcopyd_client *kc, struct dm_io_region *from, unsigned num_dests, struct dm_io_region *dests, unsigned flags, dm_kcopyd_notify_fn fn, void *context); +/* + * Prepare a callback and submit it via the kcopyd thread. + * + * dm_kcopyd_prepare_callback allocates a callback structure and returns it. + * It must not be called from interrupt context. + * The returned value should be passed into dm_kcopyd_do_callback. + * + * dm_kcopyd_do_callback submits the callback. + * It may be called from interrupt context. + * The callback is issued from the kcopyd thread. + */ +void *dm_kcopyd_prepare_callback(struct dm_kcopyd_client *kc, + dm_kcopyd_notify_fn fn, void *context); +void dm_kcopyd_do_callback(void *job, int read_err, unsigned long write_err); + #endif /* __KERNEL__ */ #endif /* _LINUX_DM_KCOPYD_H */ -- cgit v1.2.3 From 498f0103ea13123e007660def9072a0b7dd1c599 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 2 Aug 2011 12:32:04 +0100 Subject: dm table: share target argument parsing functions Move multipath target argument parsing code into dm-table so other targets can share it. Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon --- include/linux/device-mapper.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) (limited to 'include') diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 4427e0454051..3fa1f3d90ce0 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -208,6 +208,49 @@ struct dm_target_callbacks { int dm_register_target(struct target_type *t); void dm_unregister_target(struct target_type *t); +/* + * Target argument parsing. + */ +struct dm_arg_set { + unsigned argc; + char **argv; +}; + +/* + * The minimum and maximum value of a numeric argument, together with + * the error message to use if the number is found to be outside that range. + */ +struct dm_arg { + unsigned min; + unsigned max; + char *error; +}; + +/* + * Validate the next argument, either returning it as *value or, if invalid, + * returning -EINVAL and setting *error. + */ +int dm_read_arg(struct dm_arg *arg, struct dm_arg_set *arg_set, + unsigned *value, char **error); + +/* + * Process the next argument as the start of a group containing between + * arg->min and arg->max further arguments. Either return the size as + * *num_args or, if invalid, return -EINVAL and set *error. + */ +int dm_read_arg_group(struct dm_arg *arg, struct dm_arg_set *arg_set, + unsigned *num_args, char **error); + +/* + * Return the current argument and shift to the next. + */ +const char *dm_shift_arg(struct dm_arg_set *as); + +/* + * Move through num_args arguments. + */ +void dm_consume_args(struct dm_arg_set *as, unsigned num_args); + /*----------------------------------------------------------------- * Functions for creating and manipulating mapped devices. * Drop the reference with dm_put when you finish with the object. -- cgit v1.2.3 From 0ddf9644cc26e74ed671525e61a17bdbebf18da6 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Tue, 2 Aug 2011 12:32:06 +0100 Subject: dm ioctl: fill in device parameters in more ioctls Move parameter filling from find_device to __find_device_hash_cell. This patch causes ioctls using __find_device_hash_cell (DM_DEV_REMOVE_CMD, DM_DEV_SUSPEND_CMD - resume, DM_TABLE_CLEAR_CMD) to return device parameters, bringing them into line with the other ioctls. Signed-off-by: Mikulas Patocka Signed-off-by: Alasdair G Kergon --- include/linux/dm-ioctl.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/dm-ioctl.h b/include/linux/dm-ioctl.h index 3708455ee6c3..0cb8eff76bd6 100644 --- a/include/linux/dm-ioctl.h +++ b/include/linux/dm-ioctl.h @@ -267,9 +267,9 @@ enum { #define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl) #define DM_VERSION_MAJOR 4 -#define DM_VERSION_MINOR 20 +#define DM_VERSION_MINOR 21 #define DM_VERSION_PATCHLEVEL 0 -#define DM_VERSION_EXTRA "-ioctl (2011-02-02)" +#define DM_VERSION_EXTRA "-ioctl (2011-07-06)" /* Status bits */ #define DM_READONLY_FLAG (1 << 0) /* In/Out */ -- cgit v1.2.3 From aac285c6cb9622f1cc05ed162604bf5ad2da9a8d Mon Sep 17 00:00:00 2001 From: Jamie Iles Date: Tue, 2 Aug 2011 15:45:07 +0100 Subject: of: constify property name parameters for helper functions The helper functions for reading u32 integers, u32 arrays and strings should have the property name as a const pointer. Cc: Grant Likely Signed-off-by: Jamie Iles Signed-off-by: Grant Likely --- include/linux/of.h | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/of.h b/include/linux/of.h index bd716f8908de..0085bb01c041 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -196,12 +196,13 @@ extern struct property *of_find_property(const struct device_node *np, const char *name, int *lenp); extern int of_property_read_u32_array(const struct device_node *np, - char *propname, + const char *propname, u32 *out_values, size_t sz); -extern int of_property_read_string(struct device_node *np, char *propname, - const char **out_string); +extern int of_property_read_string(struct device_node *np, + const char *propname, + const char **out_string); extern int of_device_is_compatible(const struct device_node *device, const char *); extern int of_device_is_available(const struct device_node *device); @@ -242,13 +243,15 @@ static inline bool of_have_populated_dt(void) } static inline int of_property_read_u32_array(const struct device_node *np, - char *propname, u32 *out_values, size_t sz) + const char *propname, + u32 *out_values, size_t sz) { return -ENOSYS; } static inline int of_property_read_string(struct device_node *np, - char *propname, const char **out_string) + const char *propname, + const char **out_string) { return -ENOSYS; } @@ -256,7 +259,7 @@ static inline int of_property_read_string(struct device_node *np, #endif /* CONFIG_OF */ static inline int of_property_read_u32(const struct device_node *np, - char *propname, + const char *propname, u32 *out_value) { return of_property_read_u32_array(np, propname, out_value, 1); -- cgit v1.2.3 From 31f5396ad3bde23c8416e8d23ba425e27f413314 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Thu, 28 Jul 2011 13:48:42 -0700 Subject: thermal: make THERMAL_HWMON implementation fully internal THERMAL_HWMON is implemented inside the thermal_sys driver and has no effect on drivers implementing thermal zones, so they shouldn't see anything related to it in . Making the THERMAL_HWMON implementation fully internal has two advantages beyond the cleaner design: * This avoids rebuilding all thermal drivers if the THERMAL_HWMON implementation changes, or if CONFIG_THERMAL_HWMON gets enabled or disabled. * This avoids breaking the thermal kABI in these cases too, which should make distributions happy. The only drawback I can see is slightly higher memory fragmentation, as the number of kzalloc() calls will increase by one per thermal zone. But I doubt it will be a problem in practice, as I've never seen a system with more than two thermal zones. Signed-off-by: Jean Delvare Cc: Rene Herman Acked-by: Guenter Roeck Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- include/linux/thermal.h | 22 ---------------------- 1 file changed, 22 deletions(-) (limited to 'include') diff --git a/include/linux/thermal.h b/include/linux/thermal.h index d3ec89fb4122..47b4a27e6e97 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -85,22 +85,6 @@ struct thermal_cooling_device { ((long)t-2732+5)/10 : ((long)t-2732-5)/10) #define CELSIUS_TO_KELVIN(t) ((t)*10+2732) -#if defined(CONFIG_THERMAL_HWMON) -/* thermal zone devices with the same type share one hwmon device */ -struct thermal_hwmon_device { - char type[THERMAL_NAME_LENGTH]; - struct device *device; - int count; - struct list_head tz_list; - struct list_head node; -}; - -struct thermal_hwmon_attr { - struct device_attribute attr; - char name[16]; -}; -#endif - struct thermal_zone_device { int id; char type[THERMAL_NAME_LENGTH]; @@ -120,12 +104,6 @@ struct thermal_zone_device { struct mutex lock; /* protect cooling devices list */ struct list_head node; struct delayed_work poll_queue; -#if defined(CONFIG_THERMAL_HWMON) - struct list_head hwmon_node; - struct thermal_hwmon_device *hwmon; - struct thermal_hwmon_attr temp_input; /* hwmon sys attr */ - struct thermal_hwmon_attr temp_crit; /* hwmon sys attr */ -#endif }; /* Adding event notification support elements */ #define THERMAL_GENL_FAMILY_NAME "thermal_event" -- cgit v1.2.3 From f52e00c668669c9c290e84adf859c76db6d92a5a Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Thu, 28 Jul 2011 13:48:43 -0700 Subject: ACPI: remove NID_INVAL b552a8c56db8 ("ACPI: remove NID_INVAL") removed the left over uses of NID_INVAL, but didn't actually remove the definition. Remove it. Signed-off-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Len Brown --- include/linux/acpi.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 1deb2a73c2da..2312e850aab8 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -238,7 +238,6 @@ extern int acpi_paddr_to_node(u64 start_addr, u64 size); extern int pnpacpi_disabled; #define PXM_INVAL (-1) -#define NID_INVAL (-1) int acpi_check_resource_conflict(const struct resource *res); -- cgit v1.2.3 From 951c0d660a7c35286e401ca6d6ef38c9d49643c7 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Wed, 3 Aug 2011 00:47:21 -0400 Subject: get rid of boilerplate switches in posix_acl.h the only potentially subtle thing here: get_cached_acl() is never called with the second argument other than ACL_TYPE_{ACCESS,DEFAULT}. IOW, that return ERR_PTR(-EINVAL) in there might as well be BUG(). Signed-off-by: Al Viro --- include/linux/posix_acl.h | 62 +++++++++++++++-------------------------------- 1 file changed, 20 insertions(+), 42 deletions(-) (limited to 'include') diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index 951bba82d50d..a9c2fb29be96 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -84,20 +84,22 @@ extern struct posix_acl *get_posix_acl(struct inode *, int); extern int set_posix_acl(struct inode *, int, struct posix_acl *); #ifdef CONFIG_FS_POSIX_ACL -static inline struct posix_acl *get_cached_acl(struct inode *inode, int type) +static inline struct posix_acl **acl_by_type(struct inode *inode, int type) { - struct posix_acl **p, *acl; switch (type) { case ACL_TYPE_ACCESS: - p = &inode->i_acl; - break; + return &inode->i_acl; case ACL_TYPE_DEFAULT: - p = &inode->i_default_acl; - break; + return &inode->i_default_acl; default: - return ERR_PTR(-EINVAL); + BUG(); } - acl = ACCESS_ONCE(*p); +} + +static inline struct posix_acl *get_cached_acl(struct inode *inode, int type) +{ + struct posix_acl **p = acl_by_type(inode, type); + struct posix_acl *acl = ACCESS_ONCE(*p); if (acl) { spin_lock(&inode->i_lock); acl = *p; @@ -110,18 +112,8 @@ static inline struct posix_acl *get_cached_acl(struct inode *inode, int type) static inline int negative_cached_acl(struct inode *inode, int type) { - struct posix_acl **p, *acl; - switch (type) { - case ACL_TYPE_ACCESS: - p = &inode->i_acl; - break; - case ACL_TYPE_DEFAULT: - p = &inode->i_default_acl; - break; - default: - BUG(); - } - acl = ACCESS_ONCE(*p); + struct posix_acl **p = acl_by_type(inode, type); + struct posix_acl *acl = ACCESS_ONCE(*p); if (acl) return 0; return 1; @@ -131,18 +123,11 @@ static inline void set_cached_acl(struct inode *inode, int type, struct posix_acl *acl) { - struct posix_acl *old = NULL; + struct posix_acl **p = acl_by_type(inode, type); + struct posix_acl *old; spin_lock(&inode->i_lock); - switch (type) { - case ACL_TYPE_ACCESS: - old = inode->i_acl; - inode->i_acl = posix_acl_dup(acl); - break; - case ACL_TYPE_DEFAULT: - old = inode->i_default_acl; - inode->i_default_acl = posix_acl_dup(acl); - break; - } + old = *p; + *p = posix_dup_acl(acl); spin_unlock(&inode->i_lock); if (old != ACL_NOT_CACHED) posix_acl_release(old); @@ -150,18 +135,11 @@ static inline void set_cached_acl(struct inode *inode, static inline void forget_cached_acl(struct inode *inode, int type) { - struct posix_acl *old = NULL; + struct posix_acl **p = acl_by_type(inode, type); + struct posix_acl *old; spin_lock(&inode->i_lock); - switch (type) { - case ACL_TYPE_ACCESS: - old = inode->i_acl; - inode->i_acl = ACL_NOT_CACHED; - break; - case ACL_TYPE_DEFAULT: - old = inode->i_default_acl; - inode->i_default_acl = ACL_NOT_CACHED; - break; - } + old = *p; + *p = ACL_NOT_CACHED; spin_unlock(&inode->i_lock); if (old != ACL_NOT_CACHED) posix_acl_release(old); -- cgit v1.2.3 From 3567866bf26190d1e734c975c907eb06e923ba23 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 2 Aug 2011 21:32:13 -0400 Subject: RCUify freeing acls, let check_acl() go ahead in RCU mode if acl is cached Signed-off-by: Al Viro --- include/linux/posix_acl.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h index a9c2fb29be96..b7681102a4b9 100644 --- a/include/linux/posix_acl.h +++ b/include/linux/posix_acl.h @@ -9,6 +9,7 @@ #define __LINUX_POSIX_ACL_H #include +#include #define ACL_UNDEFINED_ID (-1) @@ -38,7 +39,10 @@ struct posix_acl_entry { }; struct posix_acl { - atomic_t a_refcount; + union { + atomic_t a_refcount; + struct rcu_head a_rcu; + }; unsigned int a_count; struct posix_acl_entry a_entries[0]; }; @@ -65,7 +69,7 @@ static inline void posix_acl_release(struct posix_acl *acl) { if (acl && atomic_dec_and_test(&acl->a_refcount)) - kfree(acl); + kfree_rcu(acl, a_rcu); } @@ -110,13 +114,9 @@ static inline struct posix_acl *get_cached_acl(struct inode *inode, int type) return acl; } -static inline int negative_cached_acl(struct inode *inode, int type) +static inline struct posix_acl *get_cached_acl_rcu(struct inode *inode, int type) { - struct posix_acl **p = acl_by_type(inode, type); - struct posix_acl *acl = ACCESS_ONCE(*p); - if (acl) - return 0; - return 1; + return rcu_dereference(*acl_by_type(inode, type)); } static inline void set_cached_acl(struct inode *inode, @@ -127,7 +127,7 @@ static inline void set_cached_acl(struct inode *inode, struct posix_acl *old; spin_lock(&inode->i_lock); old = *p; - *p = posix_dup_acl(acl); + rcu_assign_pointer(*p, posix_acl_dup(acl)); spin_unlock(&inode->i_lock); if (old != ACL_NOT_CACHED) posix_acl_release(old); -- cgit v1.2.3 From f2c31e32b378a6653f8de606149d963baf11d7d3 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Fri, 29 Jul 2011 19:00:53 +0000 Subject: net: fix NULL dereferences in check_peer_redir() Gergely Kalman reported crashes in check_peer_redir(). It appears commit f39925dbde778 (ipv4: Cache learned redirect information in inetpeer.) added a race, leading to possible NULL ptr dereference. Since we can now change dst neighbour, we should make sure a reader can safely use a neighbour. Add RCU protection to dst neighbour, and make sure check_peer_redir() can be called safely by different cpus in parallel. As neighbours are already freed after one RCU grace period, this patch should not add typical RCU penalty (cache cold effects) Many thanks to Gergely for providing a pretty report pointing to the bug. Reported-by: Gergely Kalman Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/dst.h | 17 +++++++++++++---- 1 file changed, 13 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/net/dst.h b/include/net/dst.h index 29e255796ce1..13d507d69ddb 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -37,7 +37,7 @@ struct dst_entry { unsigned long _metrics; unsigned long expires; struct dst_entry *path; - struct neighbour *_neighbour; + struct neighbour __rcu *_neighbour; #ifdef CONFIG_XFRM struct xfrm_state *xfrm; #else @@ -88,12 +88,17 @@ struct dst_entry { static inline struct neighbour *dst_get_neighbour(struct dst_entry *dst) { - return dst->_neighbour; + return rcu_dereference(dst->_neighbour); +} + +static inline struct neighbour *dst_get_neighbour_raw(struct dst_entry *dst) +{ + return rcu_dereference_raw(dst->_neighbour); } static inline void dst_set_neighbour(struct dst_entry *dst, struct neighbour *neigh) { - dst->_neighbour = neigh; + rcu_assign_pointer(dst->_neighbour, neigh); } extern u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old); @@ -382,8 +387,12 @@ static inline void dst_rcu_free(struct rcu_head *head) static inline void dst_confirm(struct dst_entry *dst) { if (dst) { - struct neighbour *n = dst_get_neighbour(dst); + struct neighbour *n; + + rcu_read_lock(); + n = dst_get_neighbour(dst); neigh_confirm(n); + rcu_read_unlock(); } } -- cgit v1.2.3 From 750f463a749e28464151ad26938d11b07b1c43cb Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Wed, 3 Aug 2011 11:28:14 +0100 Subject: dt: add of_alias_scan and of_alias_get_id The patch adds function of_alias_scan to populate a global lookup table with the properties of 'aliases' node and function of_alias_get_id for drivers to find alias id from the lookup table. Signed-off-by: Shawn Guo [grant.likely: add locking and rework parse loop] Signed-off-by: Grant Likely --- include/linux/of.h | 8 ++++++++ include/linux/of_fdt.h | 1 - 2 files changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/of.h b/include/linux/of.h index 0085bb01c041..bc3dc6399547 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -68,6 +68,7 @@ struct device_node { /* Pointer for first entry in chain of all nodes. */ extern struct device_node *allnodes; extern struct device_node *of_chosen; +extern struct device_node *of_aliases; extern rwlock_t devtree_lock; static inline bool of_have_populated_dt(void) @@ -209,6 +210,9 @@ extern int of_device_is_available(const struct device_node *device); extern const void *of_get_property(const struct device_node *node, const char *name, int *lenp); +#define for_each_property(pp, properties) \ + for (pp = properties; pp != NULL; pp = pp->next) + extern int of_n_addr_cells(struct device_node *np); extern int of_n_size_cells(struct device_node *np); extern const struct of_device_id *of_match_node( @@ -221,6 +225,10 @@ extern int of_parse_phandles_with_args(struct device_node *np, const char *list_name, const char *cells_name, int index, struct device_node **out_node, const void **out_args); +extern void *early_init_dt_alloc_memory_arch(u64 size, u64 align); +extern void of_alias_scan(void); +extern int of_alias_get_id(struct device_node *np, const char *stem); + extern int of_machine_is_compatible(const char *compat); extern int prom_add_property(struct device_node* np, struct property* prop); diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index c84d900fbbb3..b74b74ffe0e7 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -97,7 +97,6 @@ extern void early_init_dt_check_for_initrd(unsigned long node); extern int early_init_dt_scan_memory(unsigned long node, const char *uname, int depth, void *data); extern void early_init_dt_add_memory_arch(u64 base, u64 size); -extern void * early_init_dt_alloc_memory_arch(u64 size, u64 align); extern u64 dt_mem_next_cell(int s, __be32 **cellp); /* -- cgit v1.2.3 From f49f23abf3dd786ddcac1c1e7db3c2013b07413f Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Wed, 13 Jul 2011 13:14:23 +0800 Subject: lib, Add lock-less NULL terminated single list Cmpxchg is used to implement adding new entry to the list, deleting all entries from the list, deleting first entry of the list and some other operations. Because this is a single list, so the tail can not be accessed in O(1). If there are multiple producers and multiple consumers, llist_add can be used in producers and llist_del_all can be used in consumers. They can work simultaneously without lock. But llist_del_first can not be used here. Because llist_del_first depends on list->first->next does not changed if list->first is not changed during its operation, but llist_del_first, llist_add, llist_add (or llist_del_all, llist_add, llist_add) sequence in another consumer may violate that. If there are multiple producers and one consumer, llist_add can be used in producers and llist_del_all or llist_del_first can be used in the consumer. This can be summarized as follow: | add | del_first | del_all add | - | - | - del_first | | L | L del_all | | | - Where "-" stands for no lock is needed, while "L" stands for lock is needed. The list entries deleted via llist_del_all can be traversed with traversing function such as llist_for_each etc. But the list entries can not be traversed safely before deleted from the list. The order of deleted entries is from the newest to the oldest added one. If you want to traverse from the oldest to the newest, you must reverse the order by yourself before traversing. The basic atomic operation of this list is cmpxchg on long. On architectures that don't have NMI-safe cmpxchg implementation, the list can NOT be used in NMI handler. So code uses the list in NMI handler should depend on CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG. Signed-off-by: Huang Ying Reviewed-by: Andi Kleen Reviewed-by: Mathieu Desnoyers Cc: Andrew Morton Signed-off-by: Len Brown --- include/linux/llist.h | 126 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 include/linux/llist.h (limited to 'include') diff --git a/include/linux/llist.h b/include/linux/llist.h new file mode 100644 index 000000000000..aa0c8b5b3cd0 --- /dev/null +++ b/include/linux/llist.h @@ -0,0 +1,126 @@ +#ifndef LLIST_H +#define LLIST_H +/* + * Lock-less NULL terminated single linked list + * + * If there are multiple producers and multiple consumers, llist_add + * can be used in producers and llist_del_all can be used in + * consumers. They can work simultaneously without lock. But + * llist_del_first can not be used here. Because llist_del_first + * depends on list->first->next does not changed if list->first is not + * changed during its operation, but llist_del_first, llist_add, + * llist_add (or llist_del_all, llist_add, llist_add) sequence in + * another consumer may violate that. + * + * If there are multiple producers and one consumer, llist_add can be + * used in producers and llist_del_all or llist_del_first can be used + * in the consumer. + * + * This can be summarized as follow: + * + * | add | del_first | del_all + * add | - | - | - + * del_first | | L | L + * del_all | | | - + * + * Where "-" stands for no lock is needed, while "L" stands for lock + * is needed. + * + * The list entries deleted via llist_del_all can be traversed with + * traversing function such as llist_for_each etc. But the list + * entries can not be traversed safely before deleted from the list. + * The order of deleted entries is from the newest to the oldest added + * one. If you want to traverse from the oldest to the newest, you + * must reverse the order by yourself before traversing. + * + * The basic atomic operation of this list is cmpxchg on long. On + * architectures that don't have NMI-safe cmpxchg implementation, the + * list can NOT be used in NMI handler. So code uses the list in NMI + * handler should depend on CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG. + */ + +struct llist_head { + struct llist_node *first; +}; + +struct llist_node { + struct llist_node *next; +}; + +#define LLIST_HEAD_INIT(name) { NULL } +#define LLIST_HEAD(name) struct llist_head name = LLIST_HEAD_INIT(name) + +/** + * init_llist_head - initialize lock-less list head + * @head: the head for your lock-less list + */ +static inline void init_llist_head(struct llist_head *list) +{ + list->first = NULL; +} + +/** + * llist_entry - get the struct of this entry + * @ptr: the &struct llist_node pointer. + * @type: the type of the struct this is embedded in. + * @member: the name of the llist_node within the struct. + */ +#define llist_entry(ptr, type, member) \ + container_of(ptr, type, member) + +/** + * llist_for_each - iterate over some deleted entries of a lock-less list + * @pos: the &struct llist_node to use as a loop cursor + * @node: the first entry of deleted list entries + * + * In general, some entries of the lock-less list can be traversed + * safely only after being deleted from list, so start with an entry + * instead of list head. + * + * If being used on entries deleted from lock-less list directly, the + * traverse order is from the newest to the oldest added entry. If + * you want to traverse from the oldest to the newest, you must + * reverse the order by yourself before traversing. + */ +#define llist_for_each(pos, node) \ + for ((pos) = (node); pos; (pos) = (pos)->next) + +/** + * llist_for_each_entry - iterate over some deleted entries of lock-less list of given type + * @pos: the type * to use as a loop cursor. + * @node: the fist entry of deleted list entries. + * @member: the name of the llist_node with the struct. + * + * In general, some entries of the lock-less list can be traversed + * safely only after being removed from list, so start with an entry + * instead of list head. + * + * If being used on entries deleted from lock-less list directly, the + * traverse order is from the newest to the oldest added entry. If + * you want to traverse from the oldest to the newest, you must + * reverse the order by yourself before traversing. + */ +#define llist_for_each_entry(pos, node, member) \ + for ((pos) = llist_entry((node), typeof(*(pos)), member); \ + &(pos)->member != NULL; \ + (pos) = llist_entry((pos)->member.next, typeof(*(pos)), member)) + +/** + * llist_empty - tests whether a lock-less list is empty + * @head: the list to test + * + * Not guaranteed to be accurate or up to date. Just a quick way to + * test whether the list is empty without deleting something from the + * list. + */ +static inline int llist_empty(const struct llist_head *head) +{ + return ACCESS_ONCE(head->first) == NULL; +} + +void llist_add(struct llist_node *new, struct llist_head *head); +void llist_add_batch(struct llist_node *new_first, struct llist_node *new_last, + struct llist_head *head); +struct llist_node *llist_del_first(struct llist_head *head); +struct llist_node *llist_del_all(struct llist_head *head); +#endif /* LLIST_H */ -- cgit v1.2.3 From 7f184275aa306046fe7edcbef3229754f0d97402 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Wed, 13 Jul 2011 13:14:24 +0800 Subject: lib, Make gen_pool memory allocator lockless This version of the gen_pool memory allocator supports lockless operation. This makes it safe to use in NMI handlers and other special unblockable contexts that could otherwise deadlock on locks. This is implemented by using atomic operations and retries on any conflicts. The disadvantage is that there may be livelocks in extreme cases. For better scalability, one gen_pool allocator can be used for each CPU. The lockless operation only works if there is enough memory available. If new memory is added to the pool a lock has to be still taken. So any user relying on locklessness has to ensure that sufficient memory is preallocated. The basic atomic operation of this allocator is cmpxchg on long. On architectures that don't have NMI-safe cmpxchg implementation, the allocator can NOT be used in NMI handler. So code uses the allocator in NMI handler should depend on CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG. Signed-off-by: Huang Ying Reviewed-by: Andi Kleen Reviewed-by: Mathieu Desnoyers Cc: Andrew Morton Signed-off-by: Len Brown --- include/linux/bitmap.h | 1 + include/linux/genalloc.h | 34 ++++++++++++++++++++++++++++------ 2 files changed, 29 insertions(+), 6 deletions(-) (limited to 'include') diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index dcafe0bf0005..907dd58aa228 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -145,6 +145,7 @@ extern void bitmap_release_region(unsigned long *bitmap, int pos, int order); extern int bitmap_allocate_region(unsigned long *bitmap, int pos, int order); extern void bitmap_copy_le(void *dst, const unsigned long *src, int nbits); +#define BITMAP_FIRST_WORD_MASK(start) (~0UL << ((start) % BITS_PER_LONG)) #define BITMAP_LAST_WORD_MASK(nbits) \ ( \ ((nbits) % BITS_PER_LONG) ? \ diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h index 5bbebda78b02..5e98eeb2af3b 100644 --- a/include/linux/genalloc.h +++ b/include/linux/genalloc.h @@ -1,8 +1,26 @@ /* - * Basic general purpose allocator for managing special purpose memory - * not managed by the regular kmalloc/kfree interface. - * Uses for this includes on-device special memory, uncached memory - * etc. + * Basic general purpose allocator for managing special purpose + * memory, for example, memory that is not managed by the regular + * kmalloc/kfree interface. Uses for this includes on-device special + * memory, uncached memory etc. + * + * It is safe to use the allocator in NMI handlers and other special + * unblockable contexts that could otherwise deadlock on locks. This + * is implemented by using atomic operations and retries on any + * conflicts. The disadvantage is that there may be livelocks in + * extreme cases. For better scalability, one allocator can be used + * for each CPU. + * + * The lockless operation only works if there is enough memory + * available. If new memory is added to the pool a lock has to be + * still taken. So any user relying on locklessness has to ensure + * that sufficient memory is preallocated. + * + * The basic atomic operation of this allocator is cmpxchg on long. + * On architectures that don't have NMI-safe cmpxchg implementation, + * the allocator can NOT be used in NMI handler. So code uses the + * allocator in NMI handler should depend on + * CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG. * * This source code is licensed under the GNU General Public License, * Version 2. See the file COPYING for more details. @@ -15,7 +33,7 @@ * General purpose special memory pool descriptor. */ struct gen_pool { - rwlock_t lock; + spinlock_t lock; struct list_head chunks; /* list of chunks in this pool */ int min_alloc_order; /* minimum allocation order */ }; @@ -24,8 +42,8 @@ struct gen_pool { * General purpose special memory pool chunk descriptor. */ struct gen_pool_chunk { - spinlock_t lock; struct list_head next_chunk; /* next chunk in pool */ + atomic_t avail; phys_addr_t phys_addr; /* physical starting address of memory chunk */ unsigned long start_addr; /* starting address of memory chunk */ unsigned long end_addr; /* ending address of memory chunk */ @@ -56,4 +74,8 @@ static inline int gen_pool_add(struct gen_pool *pool, unsigned long addr, extern void gen_pool_destroy(struct gen_pool *); extern unsigned long gen_pool_alloc(struct gen_pool *, size_t); extern void gen_pool_free(struct gen_pool *, unsigned long, size_t); +extern void gen_pool_for_each_chunk(struct gen_pool *, + void (*)(struct gen_pool *, struct gen_pool_chunk *, void *), void *); +extern size_t gen_pool_avail(struct gen_pool *); +extern size_t gen_pool_size(struct gen_pool *); #endif /* __GENALLOC_H__ */ -- cgit v1.2.3 From ea8f5fb8a71fddaf5f3a17100d3247855701f732 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Wed, 13 Jul 2011 13:14:27 +0800 Subject: HWPoison: add memory_failure_queue() memory_failure() is the entry point for HWPoison memory error recovery. It must be called in process context. But commonly hardware memory errors are notified via MCE or NMI, so some delayed execution mechanism must be used. In MCE handler, a work queue + ring buffer mechanism is used. In addition to MCE, now APEI (ACPI Platform Error Interface) GHES (Generic Hardware Error Source) can be used to report memory errors too. To add support to APEI GHES memory recovery, a mechanism similar to that of MCE is implemented. memory_failure_queue() is the new entry point that can be called in IRQ context. The next step is to make MCE handler uses this interface too. Signed-off-by: Huang Ying Cc: Andi Kleen Cc: Wu Fengguang Cc: Andrew Morton Signed-off-by: Len Brown --- include/linux/mm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index 9670f71d7be9..303108eed28c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1633,6 +1633,7 @@ enum mf_flags { }; extern void memory_failure(unsigned long pfn, int trapno); extern int __memory_failure(unsigned long pfn, int trapno, int flags); +extern void memory_failure_queue(unsigned long pfn, int trapno, int flags); extern int unpoison_memory(unsigned long pfn); extern int sysctl_memory_failure_early_kill; extern int sysctl_memory_failure_recovery; -- cgit v1.2.3 From a7e09d450b2e0b068e850d103b6ee1af537d1910 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Sat, 16 Jul 2011 18:14:21 -0400 Subject: ACPI: APEI build fix as GHES is optional... When # CONFIG_ACPI_APEI_GHES is not set: (.init.text+0x4c22): undefined reference to `ghes_disable' Reported-by: Randy Dunlap Acked-by: Randy Dunlap Signed-off-by: Len Brown --- include/acpi/apei.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/acpi/apei.h b/include/acpi/apei.h index d40bc5521fcb..51a527d24a8a 100644 --- a/include/acpi/apei.h +++ b/include/acpi/apei.h @@ -18,7 +18,11 @@ extern int hest_disable; extern int erst_disable; +#ifdef CONFIG_ACPI_APEI_GHES extern int ghes_disable; +#else +#define ghes_disable 1 +#endif #ifdef CONFIG_ACPI_APEI void __init acpi_hest_init(void); -- cgit v1.2.3 From d91ee5863b71e8c90eaf6035bff3078a85e2e7b5 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Fri, 1 Apr 2011 18:28:35 -0400 Subject: cpuidle: replace xen access to x86 pm_idle and default_idle When a Xen Dom0 kernel boots on a hypervisor, it gets access to the raw-hardware ACPI tables. While it parses the idle tables for the hypervisor's beneift, it uses HLT for its own idle. Rather than have xen scribble on pm_idle and access default_idle, have it simply disable_cpuidle() so acpi_idle will not load and architecture default HLT will be used. cc: xen-devel@lists.xensource.com Tested-by: Konrad Rzeszutek Wilk Acked-by: H. Peter Anvin Signed-off-by: Len Brown --- include/linux/cpuidle.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 36719ead50e8..b89f67da919e 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -122,6 +122,7 @@ struct cpuidle_driver { }; #ifdef CONFIG_CPU_IDLE +extern void disable_cpuidle(void); extern int cpuidle_register_driver(struct cpuidle_driver *drv); struct cpuidle_driver *cpuidle_get_driver(void); @@ -135,6 +136,7 @@ extern int cpuidle_enable_device(struct cpuidle_device *dev); extern void cpuidle_disable_device(struct cpuidle_device *dev); #else +static inline void disable_cpuidle(void) { } static inline int cpuidle_register_driver(struct cpuidle_driver *drv) {return -ENODEV; } -- cgit v1.2.3 From a0bfa1373859e9d11dc92561a8667588803e42d8 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Fri, 1 Apr 2011 19:34:59 -0400 Subject: cpuidle: stop depending on pm_idle cpuidle users should call cpuidle_call_idle() directly rather than via (pm_idle)() function pointer. Architecture may choose to continue using (pm_idle)(), but cpuidle need not depend on it: my_arch_cpu_idle() ... if(cpuidle_call_idle()) pm_idle(); cc: Kevin Hilman cc: Paul Mundt cc: x86@kernel.org Acked-by: H. Peter Anvin Signed-off-by: Len Brown --- include/linux/cpuidle.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index b89f67da919e..b51629e15cfc 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -123,6 +123,7 @@ struct cpuidle_driver { #ifdef CONFIG_CPU_IDLE extern void disable_cpuidle(void); +extern int cpuidle_idle_call(void); extern int cpuidle_register_driver(struct cpuidle_driver *drv); struct cpuidle_driver *cpuidle_get_driver(void); @@ -137,6 +138,7 @@ extern void cpuidle_disable_device(struct cpuidle_device *dev); #else static inline void disable_cpuidle(void) { } +static inline int cpuidle_idle_call(void) { return -ENODEV; } static inline int cpuidle_register_driver(struct cpuidle_driver *drv) {return -ENODEV; } -- cgit v1.2.3 From dd48c085c1cdf9446f92826f1fd451167fb6c2fd Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 3 Aug 2011 16:21:01 -0700 Subject: fault-injection: add ability to export fault_attr in arbitrary directory init_fault_attr_dentries() is used to export fault_attr via debugfs. But it can only export it in debugfs root directory. Per Forlin is working on mmc_fail_request which adds support to inject data errors after a completed host transfer in MMC subsystem. The fault_attr for mmc_fail_request should be defined per mmc host and export it in debugfs directory per mmc host like /sys/kernel/debug/mmc0/mmc_fail_request. init_fault_attr_dentries() doesn't help for mmc_fail_request. So this introduces fault_create_debugfs_attr() which is able to create a directory in the arbitrary directory and replace init_fault_attr_dentries(). [akpm@linux-foundation.org: extraneous semicolon, per Randy] Signed-off-by: Akinobu Mita Tested-by: Per Forlin Cc: Jens Axboe Cc: Christoph Lameter Cc: Pekka Enberg Cc: Matt Mackall Cc: Randy Dunlap Cc: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/fault-inject.h | 18 +++++------------- 1 file changed, 5 insertions(+), 13 deletions(-) (limited to 'include') diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h index 3ff060ac7810..c6f996f2abb6 100644 --- a/include/linux/fault-inject.h +++ b/include/linux/fault-inject.h @@ -25,10 +25,6 @@ struct fault_attr { unsigned long reject_end; unsigned long count; - -#ifdef CONFIG_FAULT_INJECTION_DEBUG_FS - struct dentry *dir; -#endif }; #define FAULT_ATTR_INITIALIZER { \ @@ -45,19 +41,15 @@ bool should_fail(struct fault_attr *attr, ssize_t size); #ifdef CONFIG_FAULT_INJECTION_DEBUG_FS -int init_fault_attr_dentries(struct fault_attr *attr, const char *name); -void cleanup_fault_attr_dentries(struct fault_attr *attr); +struct dentry *fault_create_debugfs_attr(const char *name, + struct dentry *parent, struct fault_attr *attr); #else /* CONFIG_FAULT_INJECTION_DEBUG_FS */ -static inline int init_fault_attr_dentries(struct fault_attr *attr, - const char *name) -{ - return -ENODEV; -} - -static inline void cleanup_fault_attr_dentries(struct fault_attr *attr) +static inline struct dentry *fault_create_debugfs_attr(const char *name, + struct dentry *parent, struct fault_attr *attr) { + return ERR_PTR(-ENODEV); } #endif /* CONFIG_FAULT_INJECTION_DEBUG_FS */ -- cgit v1.2.3 From 88eca0207cf1574328c3ce8c3be537a9317261bb Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Wed, 3 Aug 2011 16:21:06 -0700 Subject: ida: simplified functions for id allocation The current hyper-optimized functions are overkill if you simply want to allocate an id for a device. Create versions which use an internal lock. In followup patches, numerous drivers are converted to use this interface. Thanks to Tejun for feedback. Signed-off-by: Rusty Russell Acked-by: Tejun Heo Acked-by: Jonathan Cameron Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/idr.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include') diff --git a/include/linux/idr.h b/include/linux/idr.h index 13a801f3d028..255491cf522e 100644 --- a/include/linux/idr.h +++ b/include/linux/idr.h @@ -146,6 +146,10 @@ void ida_remove(struct ida *ida, int id); void ida_destroy(struct ida *ida); void ida_init(struct ida *ida); +int ida_simple_get(struct ida *ida, unsigned int start, unsigned int end, + gfp_t gfp_mask); +void ida_simple_remove(struct ida *ida, unsigned int id); + void __init idr_init_cache(void); #endif /* __IDR_H__ */ -- cgit v1.2.3 From 3dab1bce8e840606e76f1bad5a009328e2aa35c7 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 3 Aug 2011 16:21:09 -0700 Subject: mm: page_alloc: increase __GFP_BITS_SHIFT to include __GFP_OTHER_NODE __GFP_OTHER_NODE is used for NUMA allocations on behalf of other nodes. It's supposed to be passed through from the page allocator to zone_statistics(), but it never gets there as gfp_allowed_mask is not wide enough and masks out the flag early in the allocation path. The result is an accounting glitch where successful NUMA allocations by-agent are not properly attributed as local. Increase __GFP_BITS_SHIFT so that it includes __GFP_OTHER_NODE. Signed-off-by: Johannes Weiner Acked-by: Andi Kleen Reviewed-by: Minchan Kim Acked-by: Mel Gorman Reviewed-by: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/gfp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/gfp.h b/include/linux/gfp.h index cb4089254f01..3a76faf6a3ee 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -92,7 +92,7 @@ struct vm_area_struct; */ #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK) -#define __GFP_BITS_SHIFT 23 /* Room for 23 __GFP_FOO bits */ +#define __GFP_BITS_SHIFT 24 /* Room for N __GFP_FOO bits */ #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1)) /* This equals 0, but use constants in case they ever change */ -- cgit v1.2.3 From 5d6f921b42749d1a70441685b7a4f2801e12ebfb Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 3 Aug 2011 16:21:17 -0700 Subject: drivers/video/backlight/aat2870_bl.c: fix setting max_current - Current implementation tests wrong value for setting aat2870_bl->max_current. - In the current implementation, we cannot differentiate between 2 cases: a) if pdata->max_current is not set , or b) pdata->max_current is set to AAT2870_CURRENT_0_45 (which is also 0). Fix it by setting AAT2870_CURRENT_0_45 to be 1 and adjust the equation in aat2870_brightness() accordingly. Signed-off-by: Axel Lin Cc: Richard Purdie Cc: Samuel Ortiz Tested-by: Jin Park Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mfd/aat2870.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/mfd/aat2870.h b/include/linux/mfd/aat2870.h index 89212df05622..f7316c29bdec 100644 --- a/include/linux/mfd/aat2870.h +++ b/include/linux/mfd/aat2870.h @@ -89,7 +89,7 @@ enum aat2870_id { /* Backlight current magnitude (mA) */ enum aat2870_current { - AAT2870_CURRENT_0_45, + AAT2870_CURRENT_0_45 = 1, AAT2870_CURRENT_0_90, AAT2870_CURRENT_1_80, AAT2870_CURRENT_2_70, -- cgit v1.2.3 From 6328650bb4d854a7dc1498d1c0048b838b0d340c Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 3 Aug 2011 16:21:18 -0700 Subject: radix_tree: exceptional entries and indices A patchset to extend tmpfs to MAX_LFS_FILESIZE by abandoning its peculiar swap vector, instead keeping a file's swap entries in the same radix tree as its struct page pointers: thus saving memory, and simplifying its code and locking. This patch: The radix_tree is used by several subsystems for different purposes. A major use is to store the struct page pointers of a file's pagecache for memory management. But what if mm wanted to store something other than page pointers there too? The low bit of a radix_tree entry is already used to denote an indirect pointer, for internal use, and the unlikely radix_tree_deref_retry() case. Define the next bit as denoting an exceptional entry, and supply inline functions radix_tree_exception() to return non-0 in either unlikely case, and radix_tree_exceptional_entry() to return non-0 in the second case. If a subsystem already uses radix_tree with that bit set, no problem: it does not affect internal workings at all, but is defined for the convenience of those storing well-aligned pointers in the radix_tree. The radix_tree_gang_lookups have an implicit assumption that the caller can deduce the offset of each entry returned e.g. by the page->index of a struct page. But that may not be feasible for some kinds of item to be stored there. radix_tree_gang_lookup_slot() allow for an optional indices argument, output array in which to return those offsets. The same could be added to other radix_tree_gang_lookups, but for now keep it to the only one for which we need it. Signed-off-by: Hugh Dickins Acked-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/radix-tree.h | 36 +++++++++++++++++++++++++++++++++--- 1 file changed, 33 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index 23241c2fecce..b7edf8251455 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h @@ -39,7 +39,15 @@ * when it is shrunk, before we rcu free the node. See shrink code for * details. */ -#define RADIX_TREE_INDIRECT_PTR 1 +#define RADIX_TREE_INDIRECT_PTR 1 +/* + * A common use of the radix tree is to store pointers to struct pages; + * but shmem/tmpfs needs also to store swap entries in the same tree: + * those are marked as exceptional entries to distinguish them. + * EXCEPTIONAL_ENTRY tests the bit, EXCEPTIONAL_SHIFT shifts content past it. + */ +#define RADIX_TREE_EXCEPTIONAL_ENTRY 2 +#define RADIX_TREE_EXCEPTIONAL_SHIFT 2 #define radix_tree_indirect_to_ptr(ptr) \ radix_tree_indirect_to_ptr((void __force *)(ptr)) @@ -173,6 +181,28 @@ static inline int radix_tree_deref_retry(void *arg) return unlikely((unsigned long)arg & RADIX_TREE_INDIRECT_PTR); } +/** + * radix_tree_exceptional_entry - radix_tree_deref_slot gave exceptional entry? + * @arg: value returned by radix_tree_deref_slot + * Returns: 0 if well-aligned pointer, non-0 if exceptional entry. + */ +static inline int radix_tree_exceptional_entry(void *arg) +{ + /* Not unlikely because radix_tree_exception often tested first */ + return (unsigned long)arg & RADIX_TREE_EXCEPTIONAL_ENTRY; +} + +/** + * radix_tree_exception - radix_tree_deref_slot returned either exception? + * @arg: value returned by radix_tree_deref_slot + * Returns: 0 if well-aligned pointer, non-0 if either kind of exception. + */ +static inline int radix_tree_exception(void *arg) +{ + return unlikely((unsigned long)arg & + (RADIX_TREE_INDIRECT_PTR | RADIX_TREE_EXCEPTIONAL_ENTRY)); +} + /** * radix_tree_replace_slot - replace item in a slot * @pslot: pointer to slot, returned by radix_tree_lookup_slot @@ -194,8 +224,8 @@ void *radix_tree_delete(struct radix_tree_root *, unsigned long); unsigned int radix_tree_gang_lookup(struct radix_tree_root *root, void **results, unsigned long first_index, unsigned int max_items); -unsigned int -radix_tree_gang_lookup_slot(struct radix_tree_root *root, void ***results, +unsigned int radix_tree_gang_lookup_slot(struct radix_tree_root *root, + void ***results, unsigned long *indices, unsigned long first_index, unsigned int max_items); unsigned long radix_tree_next_hole(struct radix_tree_root *root, unsigned long index, unsigned long max_scan); -- cgit v1.2.3 From a2c16d6cb0e478812829ca84aeabd02e36af35eb Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 3 Aug 2011 16:21:19 -0700 Subject: mm: let swap use exceptional entries If swap entries are to be stored along with struct page pointers in a radix tree, they need to be distinguished as exceptional entries. Most of the handling of swap entries in radix tree will be contained in shmem.c, but a few functions in filemap.c's common code need to check for their appearance: find_get_page(), find_lock_page(), find_get_pages() and find_get_pages_contig(). So as not to slow their fast paths, tuck those checks inside the existing checks for unlikely radix_tree_deref_slot(); except for find_lock_page(), where it is an added test. And make it a BUG in find_get_pages_tag(), which is not applied to tmpfs files. A part of the reason for eliminating shmem_readpage() earlier, was to minimize the places where common code would need to allow for swap entries. The swp_entry_t known to swapfile.c must be massaged into a slightly different form when stored in the radix tree, just as it gets massaged into a pte_t when stored in page tables. In an i386 kernel this limits its information (type and page offset) to 30 bits: given 32 "types" of swapfile and 4kB pagesize, that's a maximum swapfile size of 128GB. Which is less than the 512GB we previously allowed with X86_PAE (where the swap entry can occupy the entire upper 32 bits of a pte_t), but not a new limitation on 32-bit without PAE; and there's not a new limitation on 64-bit (where swap filesize is already limited to 16TB by a 32-bit page offset). Thirty areas of 128GB is probably still enough swap for a 64GB 32-bit machine. Provide swp_to_radix_entry() and radix_to_swp_entry() conversions, and enforce filesize limit in read_swap_header(), just as for ptes. Signed-off-by: Hugh Dickins Acked-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/swapops.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'include') diff --git a/include/linux/swapops.h b/include/linux/swapops.h index cd42e30b7c6e..2189d3ffc85d 100644 --- a/include/linux/swapops.h +++ b/include/linux/swapops.h @@ -1,3 +1,8 @@ +#ifndef _LINUX_SWAPOPS_H +#define _LINUX_SWAPOPS_H + +#include + /* * swapcache pages are stored in the swapper_space radix tree. We want to * get good packing density in that tree, so the index should be dense in @@ -76,6 +81,22 @@ static inline pte_t swp_entry_to_pte(swp_entry_t entry) return __swp_entry_to_pte(arch_entry); } +static inline swp_entry_t radix_to_swp_entry(void *arg) +{ + swp_entry_t entry; + + entry.val = (unsigned long)arg >> RADIX_TREE_EXCEPTIONAL_SHIFT; + return entry; +} + +static inline void *swp_to_radix_entry(swp_entry_t entry) +{ + unsigned long value; + + value = entry.val << RADIX_TREE_EXCEPTIONAL_SHIFT; + return (void *)(value | RADIX_TREE_EXCEPTIONAL_ENTRY); +} + #ifdef CONFIG_MIGRATION static inline swp_entry_t make_migration_entry(struct page *page, int write) { @@ -169,3 +190,5 @@ static inline int non_swap_entry(swp_entry_t entry) return 0; } #endif + +#endif /* _LINUX_SWAPOPS_H */ -- cgit v1.2.3 From 285b2c4fdd69ea73b4762785d8c6be83b6c074a6 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 3 Aug 2011 16:21:20 -0700 Subject: tmpfs: demolish old swap vector support The maximum size of a shmem/tmpfs file has been limited by the maximum size of its triple-indirect swap vector. With 4kB page size, maximum filesize was just over 2TB on a 32-bit kernel, but sadly one eighth of that on a 64-bit kernel. (With 8kB page size, maximum filesize was just over 4TB on a 64-bit kernel, but 16TB on a 32-bit kernel, MAX_LFS_FILESIZE being then more restrictive than swap vector layout.) It's a shame that tmpfs should be more restrictive than ramfs, and this limitation has now been noticed. Add another level to the swap vector? No, it became obscure and hard to maintain, once I complicated it to make use of highmem pages nine years ago: better choose another way. Surely, if 2.4 had had the radix tree pagecache introduced in 2.5, then tmpfs would never have invented its own peculiar radix tree: we would have fitted swap entries into the common radix tree instead, in much the same way as we fit swap entries into page tables. And why should each file have a separate radix tree for its pages and for its swap entries? The swap entries are required precisely where and when the pages are not. We want to put them together in a single radix tree: which can then avoid much of the locking which was needed to prevent them from being exchanged underneath us. This also avoids the waste of memory devoted to swap vectors, first in the shmem_inode itself, then at least two more pages once a file grew beyond 16 data pages (pages accounted by df and du, but not by memcg). Allocated upfront, to avoid allocation when under swapping pressure, but pure waste when CONFIG_SWAP is not set - I have never spattered around the ifdefs to prevent that, preferring this move to sharing the common radix tree instead. There are three downsides to sharing the radix tree. One, that it binds tmpfs more tightly to the rest of mm, either requiring knowledge of swap entries in radix tree there, or duplication of its code here in shmem.c. I believe that the simplications and memory savings (and probable higher performance, not yet measured) justify that. Two, that on HIGHMEM systems with SWAP enabled, it's the lowmem radix nodes that cannot be freed under memory pressure - whereas before it was the less precious highmem swap vector pages that could not be freed. I'm hoping that 64-bit has now been accessible for long enough, that the highmem argument has grown much less persuasive. Three, that swapoff is slower than it used to be on tmpfs files, since it's using a simple generic mechanism not tailored to it: I find this noticeable, and shall want to improve, but maybe nobody else will notice. So... now remove most of the old swap vector code from shmem.c. But, for the moment, keep the simple i_direct vector of 16 pages, with simple accessors shmem_put_swap() and shmem_get_swap(), as a toy implementation to help mark where swap needs to be handled in subsequent patches. Signed-off-by: Hugh Dickins Acked-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/shmem_fs.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h index aa08fa8fd79b..80b695213fdb 100644 --- a/include/linux/shmem_fs.h +++ b/include/linux/shmem_fs.h @@ -17,9 +17,7 @@ struct shmem_inode_info { unsigned long flags; unsigned long alloced; /* data pages alloced to file */ unsigned long swapped; /* subtotal assigned to swap */ - unsigned long next_index; /* highest alloced index + 1 */ struct shared_policy policy; /* NUMA memory alloc policy */ - struct page *i_indirect; /* top indirect blocks page */ union { swp_entry_t i_direct[SHMEM_NR_DIRECT]; /* first blocks */ char inline_symlink[SHMEM_SYMLINK_INLINE_LEN]; -- cgit v1.2.3 From 41ffe5d5ceef7f7ff2ff18e320d88ca6d629efaf Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 3 Aug 2011 16:21:21 -0700 Subject: tmpfs: miscellaneous trivial cleanups While it's at its least, make a number of boring nitpicky cleanups to shmem.c, mostly for consistency of variable naming. Things like "swap" instead of "entry", "pgoff_t index" instead of "unsigned long idx". And since everything else here is prefixed "shmem_", better change init_tmpfs() to shmem_init(). Signed-off-by: Hugh Dickins Acked-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/shmem_fs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h index 80b695213fdb..3f05795dcf7b 100644 --- a/include/linux/shmem_fs.h +++ b/include/linux/shmem_fs.h @@ -47,7 +47,7 @@ static inline struct shmem_inode_info *SHMEM_I(struct inode *inode) /* * Functions in mm/shmem.c called directly from elsewhere: */ -extern int init_tmpfs(void); +extern int shmem_init(void); extern int shmem_fill_super(struct super_block *sb, void *data, int silent); extern struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags); -- cgit v1.2.3 From aa3b189551ad8e5cc1d9c663735c131650238278 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 3 Aug 2011 16:21:24 -0700 Subject: tmpfs: convert mem_cgroup shmem to radix-swap Remove mem_cgroup_shmem_charge_fallback(): it was only required when we had to move swappage to filecache with GFP_NOWAIT. Remove the GFP_NOWAIT special case from mem_cgroup_cache_charge(), by moving its call out from shmem_add_to_page_cache() to two of thats three callers. But leave it doing mem_cgroup_uncharge_cache_page() on error: although asymmetrical, it's easier for all 3 callers to handle. These two changes would also be appropriate if anyone were to start using shmem_read_mapping_page_gfp() with GFP_NOWAIT. Remove mem_cgroup_get_shmem_target(): mc_handle_file_pte() can test radix_tree_exceptional_entry() to get what it needs for itself. Signed-off-by: Hugh Dickins Acked-by: Rik van Riel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 8 -------- include/linux/shmem_fs.h | 2 -- 2 files changed, 10 deletions(-) (limited to 'include') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index b96600786913..3b535db00a94 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -86,8 +86,6 @@ extern void mem_cgroup_uncharge_end(void); extern void mem_cgroup_uncharge_page(struct page *page); extern void mem_cgroup_uncharge_cache_page(struct page *page); -extern int mem_cgroup_shmem_charge_fallback(struct page *page, - struct mm_struct *mm, gfp_t gfp_mask); extern void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask); int task_in_mem_cgroup(struct task_struct *task, const struct mem_cgroup *mem); @@ -225,12 +223,6 @@ static inline void mem_cgroup_uncharge_cache_page(struct page *page) { } -static inline int mem_cgroup_shmem_charge_fallback(struct page *page, - struct mm_struct *mm, gfp_t gfp_mask) -{ - return 0; -} - static inline void mem_cgroup_add_lru_list(struct page *page, int lru) { } diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h index 3f05795dcf7b..0c8e952df594 100644 --- a/include/linux/shmem_fs.h +++ b/include/linux/shmem_fs.h @@ -57,8 +57,6 @@ extern struct page *shmem_read_mapping_page_gfp(struct address_space *mapping, pgoff_t index, gfp_t gfp_mask); extern void shmem_truncate_range(struct inode *inode, loff_t start, loff_t end); extern int shmem_unuse(swp_entry_t entry, struct page *page); -extern void mem_cgroup_get_shmem_target(struct inode *inode, pgoff_t pgoff, - struct page **pagep, swp_entry_t *ent); static inline struct page *shmem_read_mapping_page( struct address_space *mapping, pgoff_t index) -- cgit v1.2.3 From 69f07ec938712b58755add82dd3d0b35f01317cc Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 3 Aug 2011 16:21:26 -0700 Subject: tmpfs: use kmemdup for short symlinks But we've not yet removed the old swp_entry_t i_direct[16] from shmem_inode_info. That's because it was still being shared with the inline symlink. Remove it now (saving 64 or 128 bytes from shmem inode size), and use kmemdup() for short symlinks, say, those up to 128 bytes. I wonder why mpol_free_shared_policy() is done in shmem_destroy_inode() rather than shmem_evict_inode(), where we usually do such freeing? I guess it doesn't matter, and I'm not into NUMA mpol testing right now. Signed-off-by: Hugh Dickins Acked-by: Rik van Riel Reviewed-by: Pekka Enberg Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/shmem_fs.h | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) (limited to 'include') diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h index 0c8e952df594..9291ac3cc627 100644 --- a/include/linux/shmem_fs.h +++ b/include/linux/shmem_fs.h @@ -8,20 +8,15 @@ /* inode in-kernel data */ -#define SHMEM_NR_DIRECT 16 - -#define SHMEM_SYMLINK_INLINE_LEN (SHMEM_NR_DIRECT * sizeof(swp_entry_t)) - struct shmem_inode_info { spinlock_t lock; unsigned long flags; unsigned long alloced; /* data pages alloced to file */ - unsigned long swapped; /* subtotal assigned to swap */ - struct shared_policy policy; /* NUMA memory alloc policy */ union { - swp_entry_t i_direct[SHMEM_NR_DIRECT]; /* first blocks */ - char inline_symlink[SHMEM_SYMLINK_INLINE_LEN]; + unsigned long swapped; /* subtotal assigned to swap */ + char *symlink; /* unswappable short symlink */ }; + struct shared_policy policy; /* NUMA memory alloc policy */ struct list_head swaplist; /* chain of maybes on swap */ struct list_head xattr_list; /* list of shmem_xattr */ struct inode vfs_inode; -- cgit v1.2.3 From e504f3fdd63d486d45b18009e5a65f2e329acb0a Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 3 Aug 2011 16:21:27 -0700 Subject: tmpfs radix_tree: locate_item to speed up swapoff We have already acknowledged that swapoff of a tmpfs file is slower than it was before conversion to the generic radix_tree: a little slower there will be acceptable, if the hotter paths are faster. But it was a shock to find swapoff of a 500MB file 20 times slower on my laptop, taking 10 minutes; and at that rate it significantly slows down my testing. Now, most of that turned out to be overhead from PROVE_LOCKING and PROVE_RCU: without those it was only 4 times slower than before; and more realistic tests on other machines don't fare as badly. I've tried a number of things to improve it, including tagging the swap entries, then doing lookup by tag: I'd expected that to halve the time, but in practice it's erratic, and often counter-productive. The only change I've so far found to make a consistent improvement, is to short-circuit the way we go back and forth, gang lookup packing entries into the array supplied, then shmem scanning that array for the target entry. Scanning in place doubles the speed, so it's now only twice as slow as before (or three times slower when the PROVEs are on). So, add radix_tree_locate_item() as an expedient, once-off, single-caller hack to do the lookup directly in place. #ifdef it on CONFIG_SHMEM and CONFIG_SWAP, as much to document its limited applicability as save space in other configurations. And, sadly, #include sched.h for cond_resched(). Signed-off-by: Hugh Dickins Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/radix-tree.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h index b7edf8251455..9d4539c52e53 100644 --- a/include/linux/radix-tree.h +++ b/include/linux/radix-tree.h @@ -252,6 +252,7 @@ unsigned long radix_tree_range_tag_if_tagged(struct radix_tree_root *root, unsigned long nr_to_tag, unsigned int fromtag, unsigned int totag); int radix_tree_tagged(struct radix_tree_root *root, unsigned int tag); +unsigned long radix_tree_locate_item(struct radix_tree_root *root, void *item); static inline void radix_tree_preload_end(void) { -- cgit v1.2.3 From ebec9a7bf11f843b0602b06c402f04bf4213b35a Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Wed, 3 Aug 2011 09:22:54 -0700 Subject: drm: track CEA version number if present Drivers need to know the CEA version number in addition to other display info (like whether the display is an HDMI sink) before enabling certain features. So track the CEA version number in the display info structure. Signed-off-by: Jesse Barnes Signed-off-by: Keith Packard --- include/drm/drm_crtc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 33d12f87f0e0..d515bc8f4ba7 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -205,6 +205,8 @@ struct drm_display_info { enum subpixel_order subpixel_order; u32 color_formats; + u8 cea_rev; + char *raw_edid; /* if any */ }; -- cgit v1.2.3 From fe55c1844a1c106e9d9d3dd27cbfcf8caeb9e77e Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Thu, 4 Aug 2011 10:27:32 +0100 Subject: Revert "dt: add of_alias_scan and of_alias_get_id" This reverts commit 750f463a749e28464151ad26938d11b07b1c43cb. of_alias_* still needs work to be generalized for 'promtree' dt platforms, and to no implicitly create entries for available ids. Signed-off-by: Grant Likely --- include/linux/of.h | 8 -------- include/linux/of_fdt.h | 1 + 2 files changed, 1 insertion(+), 8 deletions(-) (limited to 'include') diff --git a/include/linux/of.h b/include/linux/of.h index bc3dc6399547..0085bb01c041 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -68,7 +68,6 @@ struct device_node { /* Pointer for first entry in chain of all nodes. */ extern struct device_node *allnodes; extern struct device_node *of_chosen; -extern struct device_node *of_aliases; extern rwlock_t devtree_lock; static inline bool of_have_populated_dt(void) @@ -210,9 +209,6 @@ extern int of_device_is_available(const struct device_node *device); extern const void *of_get_property(const struct device_node *node, const char *name, int *lenp); -#define for_each_property(pp, properties) \ - for (pp = properties; pp != NULL; pp = pp->next) - extern int of_n_addr_cells(struct device_node *np); extern int of_n_size_cells(struct device_node *np); extern const struct of_device_id *of_match_node( @@ -225,10 +221,6 @@ extern int of_parse_phandles_with_args(struct device_node *np, const char *list_name, const char *cells_name, int index, struct device_node **out_node, const void **out_args); -extern void *early_init_dt_alloc_memory_arch(u64 size, u64 align); -extern void of_alias_scan(void); -extern int of_alias_get_id(struct device_node *np, const char *stem); - extern int of_machine_is_compatible(const char *compat); extern int prom_add_property(struct device_node* np, struct property* prop); diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index b74b74ffe0e7..c84d900fbbb3 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -97,6 +97,7 @@ extern void early_init_dt_check_for_initrd(unsigned long node); extern int early_init_dt_scan_memory(unsigned long node, const char *uname, int depth, void *data); extern void early_init_dt_add_memory_arch(u64 base, u64 size); +extern void * early_init_dt_alloc_memory_arch(u64 size, u64 align); extern u64 dt_mem_next_cell(int s, __be32 **cellp); /* -- cgit v1.2.3 From 051963d4832ed61e5ae74f5330b0a94489e101b9 Mon Sep 17 00:00:00 2001 From: Thomas Reim Date: Fri, 29 Jul 2011 14:28:57 +0000 Subject: drm: Separate EDID Header Check from EDID Block Check Provides function drm_edid_header_is_valid() for EDID header check and replaces EDID header check part of function drm_edid_block_valid() by a call of drm_edid_header_is_valid(). This is a prerequisite to extend DDC probing, e. g. in function radeon_ddc_probe() for Radeon devices, by a central EDID header check. Tested for kernel 2.6.35, 2.6.38 and 3.0 Cc: Signed-off-by: Thomas Reim Reviewed-by: Alex Deucher Acked-by: Stephen Michaels Signed-off-by: Dave Airlie --- include/drm/drm_crtc.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index d515bc8f4ba7..44335e57eaaa 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -804,6 +804,7 @@ extern struct drm_display_mode *drm_gtf_mode_complex(struct drm_device *dev, extern int drm_add_modes_noedid(struct drm_connector *connector, int hdisplay, int vdisplay); +extern int drm_edid_header_is_valid(const u8 *raw_edid); extern bool drm_edid_is_valid(struct edid *edid); struct drm_display_mode *drm_mode_find_dmt(struct drm_device *dev, int hsize, int vsize, int fresh); -- cgit v1.2.3 From 655b16128482fd12808f77a6799eea5419c93709 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Sun, 29 May 2011 10:57:47 +0300 Subject: nfs_xdr: Move nfs4_string definition out of #ifdef CONFIG_NFS_V4 exofs file system wants to use pnfs_osd_xdr.h file instead of redefining pnfs-objects types in it's private "pnfs.h" headr. Before we do the switch we must make sure pnfs_osd_xdr.h is compilable also under NFS versions smaller than 4.1. Since now it is needed regardless of version, by the exofs code. nfs4_string is not the only nfs4 type out in the global scope. Ack-by: Trond Myklebust Signed-off-by: Boaz Harrosh --- include/linux/nfs_xdr.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 00848d86ffb2..d9f5e8d6ca84 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -759,6 +759,11 @@ struct nfs3_getaclres { struct posix_acl * acl_default; }; +struct nfs4_string { + unsigned int len; + char *data; +}; + #ifdef CONFIG_NFS_V4 typedef u64 clientid4; @@ -949,11 +954,6 @@ struct nfs4_server_caps_res { struct nfs4_sequence_res seq_res; }; -struct nfs4_string { - unsigned int len; - char *data; -}; - #define NFS4_PATHNAME_MAXCOMPONENTS 512 struct nfs4_pathname { unsigned int ncomponents; -- cgit v1.2.3 From 33009557bd9397c446a59e4cc91059a8e84c046b Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Tue, 24 May 2011 15:16:43 -0400 Subject: Add KEY_MICMUTE and enable it on Lenovo X220 I suspect that this works on T410. Signed-off-by: Andy Lutomirski Signed-off-by: Matthew Garrett --- include/linux/input.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/linux/input.h b/include/linux/input.h index 068784e17972..a637e7814334 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -438,6 +438,8 @@ struct input_keymap_entry { #define KEY_WIMAX 246 #define KEY_RFKILL 247 /* Key that controls all radios */ +#define KEY_MICMUTE 248 /* Mute / unmute the microphone */ + /* Code 255 is reserved for special needs of AT keyboard driver */ #define BTN_MISC 0x100 -- cgit v1.2.3 From 1eb19a12bd2214cdcad5273d472b062a4ba97fa1 Mon Sep 17 00:00:00 2001 From: Mandeep Singh Baines Date: Fri, 5 Aug 2011 18:46:27 -0700 Subject: lib/sha1: use the git implementation of SHA-1 For ChromiumOS, we use SHA-1 to verify the integrity of the root filesystem. The speed of the kernel sha-1 implementation has a major impact on our boot performance. To improve boot performance, we investigated using the heavily optimized sha-1 implementation used in git. With the git sha-1 implementation, we see a 11.7% improvement in boot time. 10 reboots, remove slowest/fastest. Before: Mean: 6.58 seconds Stdev: 0.14 After (with git sha-1, this patch): Mean: 5.89 seconds Stdev: 0.07 The other cool thing about the git SHA-1 implementation is that it only needs 64 bytes of stack for the workspace while the original kernel implementation needed 320 bytes. Signed-off-by: Mandeep Singh Baines Cc: Ramsay Jones Cc: Nicolas Pitre Cc: Herbert Xu Cc: David S. Miller Cc: linux-crypto@vger.kernel.org Signed-off-by: Linus Torvalds --- include/linux/cryptohash.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/cryptohash.h b/include/linux/cryptohash.h index ec78a4bbe1d5..f9452185b019 100644 --- a/include/linux/cryptohash.h +++ b/include/linux/cryptohash.h @@ -3,7 +3,7 @@ #define SHA_DIGEST_WORDS 5 #define SHA_MESSAGE_BYTES (512 /*bits*/ / 8) -#define SHA_WORKSPACE_WORDS 80 +#define SHA_WORKSPACE_WORDS 16 void sha_init(__u32 *buf); void sha_transform(__u32 *digest, const char *data, __u32 *W); -- cgit v1.2.3 From bc0b96b54a21246e377122d54569eef71cec535f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 3 Aug 2011 19:45:10 -0700 Subject: crypto: Move md5_transform to lib/md5.c We are going to use this for TCP/IP sequence number and fragment ID generation. Signed-off-by: David S. Miller --- include/linux/cryptohash.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/cryptohash.h b/include/linux/cryptohash.h index ec78a4bbe1d5..d2984fbebbc0 100644 --- a/include/linux/cryptohash.h +++ b/include/linux/cryptohash.h @@ -8,6 +8,11 @@ void sha_init(__u32 *buf); void sha_transform(__u32 *digest, const char *data, __u32 *W); +#define MD5_DIGEST_WORDS 4 +#define MD5_MESSAGE_BYTES 64 + +void md5_transform(__u32 *hash, __u32 const *in); + __u32 half_md4_transform(__u32 buf[4], __u32 const in[8]); #endif -- cgit v1.2.3 From 6e5714eaf77d79ae1c8b47e3e040ff5411b717ec Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 3 Aug 2011 20:50:44 -0700 Subject: net: Compute protocol sequence numbers and fragment IDs using MD5. Computers have become a lot faster since we compromised on the partial MD4 hash which we use currently for performance reasons. MD5 is a much safer choice, and is inline with both RFC1948 and other ISS generators (OpenBSD, Solaris, etc.) Furthermore, only having 24-bits of the sequence number be truly unpredictable is a very serious limitation. So the periodic regeneration and 8-bit counter have been removed. We compute and use a full 32-bit sequence number. For ipv6, DCCP was found to use a 32-bit truncated initial sequence number (it needs 43-bits) and that is fixed here as well. Reported-by: Dan Kaminsky Tested-by: Willy Tarreau Signed-off-by: David S. Miller --- include/linux/random.h | 12 ------------ include/net/secure_seq.h | 20 ++++++++++++++++++++ 2 files changed, 20 insertions(+), 12 deletions(-) create mode 100644 include/net/secure_seq.h (limited to 'include') diff --git a/include/linux/random.h b/include/linux/random.h index ce29a040c8dc..d13059f3ea32 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -57,18 +57,6 @@ extern void add_interrupt_randomness(int irq); extern void get_random_bytes(void *buf, int nbytes); void generate_random_uuid(unsigned char uuid_out[16]); -extern __u32 secure_ip_id(__be32 daddr); -extern __u32 secure_ipv6_id(const __be32 daddr[4]); -extern u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport); -extern u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr, - __be16 dport); -extern __u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr, - __be16 sport, __be16 dport); -extern __u32 secure_tcpv6_sequence_number(__be32 *saddr, __be32 *daddr, - __be16 sport, __be16 dport); -extern u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr, - __be16 sport, __be16 dport); - #ifndef MODULE extern const struct file_operations random_fops, urandom_fops; #endif diff --git a/include/net/secure_seq.h b/include/net/secure_seq.h new file mode 100644 index 000000000000..d97f6892c019 --- /dev/null +++ b/include/net/secure_seq.h @@ -0,0 +1,20 @@ +#ifndef _NET_SECURE_SEQ +#define _NET_SECURE_SEQ + +#include + +extern __u32 secure_ip_id(__be32 daddr); +extern __u32 secure_ipv6_id(const __be32 daddr[4]); +extern u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport); +extern u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr, + __be16 dport); +extern __u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr, + __be16 sport, __be16 dport); +extern __u32 secure_tcpv6_sequence_number(__be32 *saddr, __be32 *daddr, + __be16 sport, __be16 dport); +extern u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr, + __be16 sport, __be16 dport); +extern u64 secure_dccpv6_sequence_number(__be32 *saddr, __be32 *daddr, + __be16 sport, __be16 dport); + +#endif /* _NET_SECURE_SEQ */ -- cgit v1.2.3 From 8ff660ab85f524bdc7652eb5d38aaef1d66aa9c7 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Sat, 6 Aug 2011 19:26:31 -0700 Subject: exofs: Rename raid engine from exofs/ios.c => ore ORE stands for "Objects Raid Engine" This patch is a mechanical rename of everything that was in ios.c and its API declaration to an ore.c and an osd_ore.h header. The ore engine will later be used by the pnfs objects layout driver. * File ios.c => ore.c * Declaration of types and API are moved from exofs.h to a new osd_ore.h * All used types are prefixed by ore_ from their exofs_ name. * Shift includes from exofs.h to osd_ore.h so osd_ore.h is independent, include it from exofs.h. Other than a pure rename there are no other changes. Next patch will move the ore into it's own module and will export the API to be used by exofs and later the layout driver Signed-off-by: Boaz Harrosh --- include/scsi/osd_ore.h | 125 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 include/scsi/osd_ore.h (limited to 'include') diff --git a/include/scsi/osd_ore.h b/include/scsi/osd_ore.h new file mode 100644 index 000000000000..c5c5e008e6de --- /dev/null +++ b/include/scsi/osd_ore.h @@ -0,0 +1,125 @@ +/* + * Copyright (C) 2011 + * Boaz Harrosh + * + * Public Declarations of the ORE API + * + * This file is part of the ORE (Object Raid Engine) library. + * + * ORE is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as published + * by the Free Software Foundation. (GPL v2) + * + * ORE is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with the ORE; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#ifndef __ORE_H__ +#define __ORE_H__ + +#include +#include +#include +#include + +struct ore_comp { + struct osd_obj_id obj; + u8 cred[OSD_CAP_LEN]; +}; + +struct ore_layout { + /* Our way of looking at the data_map */ + unsigned stripe_unit; + unsigned mirrors_p1; + + unsigned group_width; + u64 group_depth; + unsigned group_count; +}; + +struct ore_components { + unsigned numdevs; /* Num of devices in array */ + /* If @single_comp == EC_SINGLE_COMP, @comps points to a single + * component. else there are @numdevs components + */ + enum EC_COMP_USAGE { + EC_SINGLE_COMP = 0, EC_MULTPLE_COMPS = 0xffffffff + } single_comp; + struct ore_comp *comps; + struct osd_dev **ods; /* osd_dev array */ +}; + +struct ore_io_state; +typedef void (*ore_io_done_fn)(struct ore_io_state *ios, void *private); + +struct ore_io_state { + struct kref kref; + + void *private; + ore_io_done_fn done; + + struct ore_layout *layout; + struct ore_components *comps; + + /* Global read/write IO*/ + loff_t offset; + unsigned long length; + void *kern_buff; + + struct page **pages; + unsigned nr_pages; + unsigned pgbase; + unsigned pages_consumed; + + /* Attributes */ + unsigned in_attr_len; + struct osd_attr *in_attr; + unsigned out_attr_len; + struct osd_attr *out_attr; + + bool reading; + + /* Variable array of size numdevs */ + unsigned numdevs; + struct ore_per_dev_state { + struct osd_request *or; + struct bio *bio; + loff_t offset; + unsigned length; + unsigned dev; + } per_dev[]; +}; + +static inline unsigned ore_io_state_size(unsigned numdevs) +{ + return sizeof(struct ore_io_state) + + sizeof(struct ore_per_dev_state) * numdevs; +} + +/* ore.c */ +int ore_get_rw_state(struct ore_layout *layout, struct ore_components *comps, + bool is_reading, u64 offset, u64 length, + struct ore_io_state **ios); +int ore_get_io_state(struct ore_layout *layout, struct ore_components *comps, + struct ore_io_state **ios); +void ore_put_io_state(struct ore_io_state *ios); + +int ore_check_io(struct ore_io_state *ios, u64 *resid); + +int ore_create(struct ore_io_state *ios); +int ore_remove(struct ore_io_state *ios); +int ore_write(struct ore_io_state *ios); +int ore_read(struct ore_io_state *ios); +int ore_truncate(struct ore_layout *layout, struct ore_components *comps, + u64 size); + +int extract_attr_from_ios(struct ore_io_state *ios, struct osd_attr *attr); + +extern const struct osd_attr g_attr_logical_length; + +#endif -- cgit v1.2.3 From 830c0f0edca67403d361fe976a25b17356c11f19 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 6 Aug 2011 22:41:50 -0700 Subject: vfs: renumber DCACHE_xyz flags, remove some stale ones Gcc tends to generate better code with small integers, including the DCACHE_xyz flag tests - so move the common ones to be first in the list. Also just remove the unused DCACHE_INOTIFY_PARENT_WATCHED and DCACHE_AUTOFS_PENDING values, their users no longer exists in the source tree. And add a "unlikely()" to the DCACHE_OP_COMPARE test, since we want the common case to be a nice straight-line fall-through. Signed-off-by: Linus Torvalds --- include/linux/dcache.h | 30 +++++++++++++----------------- 1 file changed, 13 insertions(+), 17 deletions(-) (limited to 'include') diff --git a/include/linux/dcache.h b/include/linux/dcache.h index d37d2a793099..62157c03caf7 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -180,12 +180,12 @@ struct dentry_operations { */ /* d_flags entries */ -#define DCACHE_AUTOFS_PENDING 0x0001 /* autofs: "under construction" */ -#define DCACHE_NFSFS_RENAMED 0x0002 - /* this dentry has been "silly renamed" and has to be deleted on the last - * dput() */ +#define DCACHE_OP_HASH 0x0001 +#define DCACHE_OP_COMPARE 0x0002 +#define DCACHE_OP_REVALIDATE 0x0004 +#define DCACHE_OP_DELETE 0x0008 -#define DCACHE_DISCONNECTED 0x0004 +#define DCACHE_DISCONNECTED 0x0010 /* This dentry is possibly not currently connected to the dcache tree, in * which case its parent will either be itself, or will have this flag as * well. nfsd will not use a dentry with this bit set, but will first @@ -196,22 +196,18 @@ struct dentry_operations { * dentry into place and return that dentry rather than the passed one, * typically using d_splice_alias. */ -#define DCACHE_REFERENCED 0x0008 /* Recently used, don't discard. */ -#define DCACHE_RCUACCESS 0x0010 /* Entry has ever been RCU-visible */ -#define DCACHE_INOTIFY_PARENT_WATCHED 0x0020 - /* Parent inode is watched by inotify */ - -#define DCACHE_COOKIE 0x0040 /* For use by dcookie subsystem */ -#define DCACHE_FSNOTIFY_PARENT_WATCHED 0x0080 - /* Parent inode is watched by some fsnotify listener */ +#define DCACHE_REFERENCED 0x0020 /* Recently used, don't discard. */ +#define DCACHE_RCUACCESS 0x0040 /* Entry has ever been RCU-visible */ #define DCACHE_CANT_MOUNT 0x0100 #define DCACHE_GENOCIDE 0x0200 -#define DCACHE_OP_HASH 0x1000 -#define DCACHE_OP_COMPARE 0x2000 -#define DCACHE_OP_REVALIDATE 0x4000 -#define DCACHE_OP_DELETE 0x8000 +#define DCACHE_NFSFS_RENAMED 0x1000 + /* this dentry has been "silly renamed" and has to be deleted on the last + * dput() */ +#define DCACHE_COOKIE 0x2000 /* For use by dcookie subsystem */ +#define DCACHE_FSNOTIFY_PARENT_WATCHED 0x4000 + /* Parent inode is watched by some fsnotify listener */ #define DCACHE_MOUNTED 0x10000 /* is a mountpoint */ #define DCACHE_NEED_AUTOMOUNT 0x20000 /* handle automount on this dir */ -- cgit v1.2.3 From 3ddcd0569cd68f00f3beae9a7959b72918bb91f4 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 6 Aug 2011 22:45:50 -0700 Subject: vfs: optimize inode cache access patterns The inode structure layout is largely random, and some of the vfs paths really do care. The path lookup in particular is already quite D$ intensive, and profiles show that accessing the 'inode->i_op->xyz' fields is quite costly. We already optimized the dcache to not unnecessarily load the d_op structure for members that are often NULL using the DCACHE_OP_xyz bits in dentry->d_flags, and this does something very similar for the inode ops that are used during pathname lookup. It also re-orders the fields so that the fields accessed by 'stat' are together at the beginning of the inode structure, and roughly in the order accessed. The effect of this seems to be in the 1-2% range for an empty kernel "make -j" run (which is fairly kernel-intensive, mostly in filename lookup), so it's visible. The numbers are fairly noisy, though, and likely depend a lot on exact microarchitecture. So there's more tuning to be done. Signed-off-by: Linus Torvalds --- include/linux/fs.h | 59 ++++++++++++++++++++++++++++++++++-------------------- 1 file changed, 37 insertions(+), 22 deletions(-) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index 786b3b1113cf..178cdb4f1d4a 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -738,22 +738,54 @@ static inline int mapping_writably_mapped(struct address_space *mapping) struct posix_acl; #define ACL_NOT_CACHED ((void *)(-1)) +#define IOP_FASTPERM 0x0001 +#define IOP_LOOKUP 0x0002 +#define IOP_NOFOLLOW 0x0004 + +/* + * Keep mostly read-only and often accessed (especially for + * the RCU path lookup and 'stat' data) fields at the beginning + * of the 'struct inode' + */ struct inode { - /* RCU path lookup touches following: */ umode_t i_mode; + unsigned short i_opflags; uid_t i_uid; gid_t i_gid; + unsigned int i_flags; + +#ifdef CONFIG_FS_POSIX_ACL + struct posix_acl *i_acl; + struct posix_acl *i_default_acl; +#endif + const struct inode_operations *i_op; struct super_block *i_sb; + struct address_space *i_mapping; - spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ - unsigned int i_flags; - unsigned long i_state; #ifdef CONFIG_SECURITY void *i_security; #endif - struct mutex i_mutex; + /* Stat data, not accessed from path walking */ + unsigned long i_ino; + unsigned int i_nlink; + dev_t i_rdev; + loff_t i_size; + struct timespec i_atime; + struct timespec i_mtime; + struct timespec i_ctime; + unsigned int i_blkbits; + blkcnt_t i_blocks; + +#ifdef __NEED_I_SIZE_ORDERED + seqcount_t i_size_seqcount; +#endif + + /* Misc */ + unsigned long i_state; + spinlock_t i_lock; /* i_blocks, i_bytes, maybe i_size */ + struct mutex i_mutex; unsigned long dirtied_when; /* jiffies of first dirtying */ @@ -765,25 +797,12 @@ struct inode { struct list_head i_dentry; struct rcu_head i_rcu; }; - unsigned long i_ino; atomic_t i_count; - unsigned int i_nlink; - dev_t i_rdev; - unsigned int i_blkbits; u64 i_version; - loff_t i_size; -#ifdef __NEED_I_SIZE_ORDERED - seqcount_t i_size_seqcount; -#endif - struct timespec i_atime; - struct timespec i_mtime; - struct timespec i_ctime; - blkcnt_t i_blocks; unsigned short i_bytes; atomic_t i_dio_count; const struct file_operations *i_fop; /* former ->i_op->default_file_ops */ struct file_lock *i_flock; - struct address_space *i_mapping; struct address_space i_data; #ifdef CONFIG_QUOTA struct dquot *i_dquot[MAXQUOTAS]; @@ -806,10 +825,6 @@ struct inode { atomic_t i_readcount; /* struct files open RO */ #endif atomic_t i_writecount; -#ifdef CONFIG_FS_POSIX_ACL - struct posix_acl *i_acl; - struct posix_acl *i_default_acl; -#endif void *i_private; /* fs or device private pointer */ }; -- cgit v1.2.3 From 3295514841c2112d94451ba5deaf54f5afb78ea9 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 7 Aug 2011 18:55:11 +0100 Subject: fix rcu annotations noise in cred.h task->cred is declared as __rcu, and access to other tasks' ->cred is, indeed, protected. Access to current->cred does not need rcu_dereference() at all, since only the task itself can change its ->cred. sparse, of course, has no way of knowing that... Add force-cast in current_cred(), make current_fsuid() et.al. use it. Signed-off-by: Al Viro Signed-off-by: Linus Torvalds --- include/linux/cred.h | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'include') diff --git a/include/linux/cred.h b/include/linux/cred.h index 48e82af1159b..98f46efbe2d2 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -265,10 +265,11 @@ static inline void put_cred(const struct cred *_cred) /** * current_cred - Access the current task's subjective credentials * - * Access the subjective credentials of the current task. + * Access the subjective credentials of the current task. RCU-safe, + * since nobody else can modify it. */ #define current_cred() \ - (current->cred) + (*(__force struct cred **)¤t->cred) /** * __task_cred - Access a task's objective credentials @@ -307,7 +308,7 @@ static inline void put_cred(const struct cred *_cred) ({ \ struct user_struct *__u; \ struct cred *__cred; \ - __cred = (struct cred *) current_cred(); \ + __cred = current_cred(); \ __u = get_uid(__cred->user); \ __u; \ }) @@ -322,7 +323,7 @@ static inline void put_cred(const struct cred *_cred) ({ \ struct group_info *__groups; \ struct cred *__cred; \ - __cred = (struct cred *) current_cred(); \ + __cred = current_cred(); \ __groups = get_group_info(__cred->group_info); \ __groups; \ }) @@ -341,7 +342,7 @@ static inline void put_cred(const struct cred *_cred) #define current_cred_xxx(xxx) \ ({ \ - current->cred->xxx; \ + current_cred()->xxx; \ }) #define current_uid() (current_cred_xxx(uid)) -- cgit v1.2.3 From a9ba615134ad32254fae84f16e1751854755135c Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Fri, 24 Jun 2011 12:10:44 +0100 Subject: ASoC: Rename WM8915 to WM8996 For marketing reasons the part will be called WM8996. In order to avoid user confusion rename the driver to reflect this. Signed-off-by: Mark Brown Acked-by: Kukjin Kim Acked-by: Liam Girdwood --- include/sound/wm8915.h | 55 -------------------------------------------------- include/sound/wm8996.h | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 55 insertions(+), 55 deletions(-) delete mode 100644 include/sound/wm8915.h create mode 100644 include/sound/wm8996.h (limited to 'include') diff --git a/include/sound/wm8915.h b/include/sound/wm8915.h deleted file mode 100644 index 5817d762f6f3..000000000000 --- a/include/sound/wm8915.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * linux/sound/wm8915.h -- Platform data for WM8915 - * - * Copyright 2011 Wolfson Microelectronics. PLC. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef __LINUX_SND_WM8903_H -#define __LINUX_SND_WM8903_H - -enum wm8915_inmode { - WM8915_DIFFERRENTIAL_1 = 0, /* IN1xP - IN1xN */ - WM8915_INVERTING = 1, /* IN1xN */ - WM8915_NON_INVERTING = 2, /* IN1xP */ - WM8915_DIFFERENTIAL_2 = 3, /* IN2xP - IN2xP */ -}; - -/** - * ReTune Mobile configurations are specified with a label, sample - * rate and set of values to write (the enable bits will be ignored). - * - * Configurations are expected to be generated using the ReTune Mobile - * control panel in WISCE - see http://www.wolfsonmicro.com/wisce/ - */ -struct wm8915_retune_mobile_config { - const char *name; - int rate; - u16 regs[20]; -}; - -#define WM8915_SET_DEFAULT 0x10000 - -struct wm8915_pdata { - int irq_flags; /** Set IRQ trigger flags; default active low */ - - int ldo_ena; /** GPIO for LDO1; -1 for none */ - - int micdet_def; /** Default MICDET_SRC/HP1FB_SRC/MICD_BIAS */ - - enum wm8915_inmode inl_mode; - enum wm8915_inmode inr_mode; - - u32 spkmute_seq; /** Value for register 0x802 */ - - int gpio_base; - u32 gpio_default[5]; - - int num_retune_mobile_cfgs; - struct wm8915_retune_mobile_config *retune_mobile_cfgs; -}; - -#endif diff --git a/include/sound/wm8996.h b/include/sound/wm8996.h new file mode 100644 index 000000000000..ea4d88f43975 --- /dev/null +++ b/include/sound/wm8996.h @@ -0,0 +1,55 @@ +/* + * linux/sound/wm8996.h -- Platform data for WM8996 + * + * Copyright 2011 Wolfson Microelectronics. PLC. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __LINUX_SND_WM8996_H +#define __LINUX_SND_WM8996_H + +enum wm8996_inmode { + WM8996_DIFFERRENTIAL_1 = 0, /* IN1xP - IN1xN */ + WM8996_INVERTING = 1, /* IN1xN */ + WM8996_NON_INVERTING = 2, /* IN1xP */ + WM8996_DIFFERENTIAL_2 = 3, /* IN2xP - IN2xP */ +}; + +/** + * ReTune Mobile configurations are specified with a label, sample + * rate and set of values to write (the enable bits will be ignored). + * + * Configurations are expected to be generated using the ReTune Mobile + * control panel in WISCE - see http://www.wolfsonmicro.com/wisce/ + */ +struct wm8996_retune_mobile_config { + const char *name; + int rate; + u16 regs[20]; +}; + +#define WM8996_SET_DEFAULT 0x10000 + +struct wm8996_pdata { + int irq_flags; /** Set IRQ trigger flags; default active low */ + + int ldo_ena; /** GPIO for LDO1; -1 for none */ + + int micdet_def; /** Default MICDET_SRC/HP1FB_SRC/MICD_BIAS */ + + enum wm8996_inmode inl_mode; + enum wm8996_inmode inr_mode; + + u32 spkmute_seq; /** Value for register 0x802 */ + + int gpio_base; + u32 gpio_default[5]; + + int num_retune_mobile_cfgs; + struct wm8996_retune_mobile_config *retune_mobile_cfgs; +}; + +#endif -- cgit v1.2.3 From 6602a4baf4d1a73cc4685a39ef859e1c5ddf654c Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sun, 7 Aug 2011 22:48:07 -0700 Subject: net: Make userland include of netlink.h more sane. Currently userland will barf when including linux/netlink.h unless it precisely includes sys/socket.h first. The issue is where the definition of "sa_family_t" comes from. We've been back and forth on how to fix this issue in the past, see: http://thread.gmane.org/gmane.linux.debian.devel.bugs.general/622621 http://thread.gmane.org/gmane.linux.network/143380 Ben Hutchings suggested we take a hint from how we handle the sockaddr_storage type. First we define a "__kernel_sa_family_t" to linux/socket.h that is always defined. Then if __KERNEL__ is defined, we also define "sa_family_t" as equal to "__kernel_sa_family_t". Then in places like linux/netlink.h we use __kernel_sa_family_t in user visible datastructures. Reported-by: Michel Machado Signed-off-by: David S. Miller --- include/linux/netlink.h | 2 +- include/linux/socket.h | 6 ++++-- 2 files changed, 5 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/netlink.h b/include/linux/netlink.h index 2e17c5dbdcb8..180540a84d37 100644 --- a/include/linux/netlink.h +++ b/include/linux/netlink.h @@ -29,7 +29,7 @@ #define MAX_LINKS 32 struct sockaddr_nl { - sa_family_t nl_family; /* AF_NETLINK */ + __kernel_sa_family_t nl_family; /* AF_NETLINK */ unsigned short nl_pad; /* zero */ __u32 nl_pid; /* port ID */ __u32 nl_groups; /* multicast groups mask */ diff --git a/include/linux/socket.h b/include/linux/socket.h index e17f82266639..d0e77f607a79 100644 --- a/include/linux/socket.h +++ b/include/linux/socket.h @@ -8,8 +8,10 @@ #define _K_SS_ALIGNSIZE (__alignof__ (struct sockaddr *)) /* Implementation specific desired alignment */ +typedef unsigned short __kernel_sa_family_t; + struct __kernel_sockaddr_storage { - unsigned short ss_family; /* address family */ + __kernel_sa_family_t ss_family; /* address family */ /* Following field(s) are implementation specific */ char __data[_K_SS_MAXSIZE - sizeof(unsigned short)]; /* space to achieve desired size, */ @@ -35,7 +37,7 @@ struct seq_file; extern void socket_seq_show(struct seq_file *seq); #endif -typedef unsigned short sa_family_t; +typedef __kernel_sa_family_t sa_family_t; /* * 1003.1g requires sa_family_t and that sa_data is char. -- cgit v1.2.3 From 47670b767b1593433b516df7798df03f858278be Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Sun, 7 Aug 2011 09:16:09 +0000 Subject: ipv4: route non-local sources for raw socket The raw sockets can provide source address for routing but their privileges are not considered. We can provide non-local source address, make sure the FLOWI_FLAG_ANYSRC flag is set if socket has privileges for this, i.e. based on hdrincl (IP_HDRINCL) and transparent flags. Signed-off-by: Julian Anastasov Signed-off-by: David S. Miller --- include/net/inet_sock.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h index caaff5f5f39f..b897d6e6d0a5 100644 --- a/include/net/inet_sock.h +++ b/include/net/inet_sock.h @@ -238,7 +238,7 @@ static inline __u8 inet_sk_flowi_flags(const struct sock *sk) { __u8 flags = 0; - if (inet_sk(sk)->transparent) + if (inet_sk(sk)->transparent || inet_sk(sk)->hdrincl) flags |= FLOWI_FLAG_ANYSRC; if (sk->sk_protocol == IPPROTO_TCP) flags |= FLOWI_FLAG_PRECOW_METRICS; -- cgit v1.2.3 From 37fb3a30b46237f23cfdf7ee09d49f9888dd13bf Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Mon, 8 Aug 2011 16:08:08 +0200 Subject: fuse: fix flock Commit a9ff4f87 "fuse: support BSD locking semantics" overlooked a number of issues with supporing flock locks over existing POSIX locking infrastructure: - it's not backward compatible, passing flock(2) calls to userspace unconditionally (if userspace sets FUSE_POSIX_LOCKS) - it doesn't cater for the fact that flock locks are automatically unlocked on file release - it doesn't take into account the fact that flock exclusive locks (write locks) don't need an fd opened for write. The last one invalidates the original premise of the patch that flock locks can be emulated with POSIX locks. This patch fixes the first two issues. The last one needs to be fixed in userspace if the filesystem assumed that a write lock will happen only on a file operned for write (as in the case of the current fuse library). Reported-by: Sebastian Pipping Signed-off-by: Miklos Szeredi --- include/linux/fuse.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/fuse.h b/include/linux/fuse.h index d464de53db43..464cff526860 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -47,6 +47,9 @@ * - FUSE_IOCTL_UNRESTRICTED shall now return with array of 'struct * fuse_ioctl_iovec' instead of ambiguous 'struct iovec' * - add FUSE_IOCTL_32BIT flag + * + * 7.17 + * - add FUSE_FLOCK_LOCKS and FUSE_RELEASE_FLOCK_UNLOCK */ #ifndef _LINUX_FUSE_H @@ -78,7 +81,7 @@ #define FUSE_KERNEL_VERSION 7 /** Minor version number of this interface */ -#define FUSE_KERNEL_MINOR_VERSION 16 +#define FUSE_KERNEL_MINOR_VERSION 17 /** The node ID of the root inode */ #define FUSE_ROOT_ID 1 @@ -153,8 +156,10 @@ struct fuse_file_lock { /** * INIT request/reply flags * + * FUSE_POSIX_LOCKS: remote locking for POSIX file locks * FUSE_EXPORT_SUPPORT: filesystem handles lookups of "." and ".." * FUSE_DONT_MASK: don't apply umask to file mode on create operations + * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks */ #define FUSE_ASYNC_READ (1 << 0) #define FUSE_POSIX_LOCKS (1 << 1) @@ -163,6 +168,7 @@ struct fuse_file_lock { #define FUSE_EXPORT_SUPPORT (1 << 4) #define FUSE_BIG_WRITES (1 << 5) #define FUSE_DONT_MASK (1 << 6) +#define FUSE_FLOCK_LOCKS (1 << 10) /** * CUSE INIT request/reply flags @@ -175,6 +181,7 @@ struct fuse_file_lock { * Release flags */ #define FUSE_RELEASE_FLUSH (1 << 0) +#define FUSE_RELEASE_FLOCK_UNLOCK (1 << 1) /** * Getattr flags -- cgit v1.2.3 From 27e4e4362756a78b15e83ef104c8bbe257f40f90 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 8 Aug 2011 15:54:53 +0100 Subject: CRED: Restore const to current_cred() Commit 3295514841c2 ("fix rcu annotations noise in cred.h") accidentally dropped the const of current->cred inside current_cred() by the insertion of a cast to deal with an RCU annotation loss warning from sparce. Use an appropriate RCU wrapper instead so as not to lose the const. Signed-off-by: David Howells Reviewed-by: Paul E. McKenney cc: Al Viro Signed-off-by: Linus Torvalds --- include/linux/cred.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/cred.h b/include/linux/cred.h index 98f46efbe2d2..8e2fd44eb160 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -269,7 +269,7 @@ static inline void put_cred(const struct cred *_cred) * since nobody else can modify it. */ #define current_cred() \ - (*(__force struct cred **)¤t->cred) + rcu_dereference_protected(current->cred, 1) /** * __task_cred - Access a task's objective credentials -- cgit v1.2.3 From 638a8439096c582bdb523fcea9d875d3e1fed38a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 8 Aug 2011 11:33:23 -0700 Subject: cred: use 'const' in get_current_{user,groups} Avoid annoying warnings from these functions ("discards qualifiers") because they assign 'current_cred()' to a non-const pointer. Signed-off-by: Linus Torvalds --- include/linux/cred.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/cred.h b/include/linux/cred.h index 8e2fd44eb160..40308969ed00 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -307,7 +307,7 @@ static inline void put_cred(const struct cred *_cred) #define get_current_user() \ ({ \ struct user_struct *__u; \ - struct cred *__cred; \ + const struct cred *__cred; \ __cred = current_cred(); \ __u = get_uid(__cred->user); \ __u; \ @@ -322,7 +322,7 @@ static inline void put_cred(const struct cred *_cred) #define get_current_groups() \ ({ \ struct group_info *__groups; \ - struct cred *__cred; \ + const struct cred *__cred; \ __cred = current_cred(); \ __groups = get_group_info(__cred->group_info); \ __groups; \ -- cgit v1.2.3 From 5c723ba5b7886909b2e430f2eae454c33f7fe5c6 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 27 Jul 2011 12:17:11 +0200 Subject: mm: Fix fixup_user_fault() for MMU=n In commit 2efaca927f5c ("mm/futex: fix futex writes on archs with SW tracking of dirty & young") we forgot about MMU=n. This patch fixes that. Signed-off-by: Peter Zijlstra Acked-by: Benjamin Herrenschmidt Acked-by: David Howells Link: http://lkml.kernel.org/r/1311761831.24752.413.camel@twins Signed-off-by: Linus Torvalds --- include/linux/mm.h | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/mm.h b/include/linux/mm.h index f2690cf49827..fd599f4bb846 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -962,6 +962,8 @@ int invalidate_inode_page(struct page *page); #ifdef CONFIG_MMU extern int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, unsigned int flags); +extern int fixup_user_fault(struct task_struct *tsk, struct mm_struct *mm, + unsigned long address, unsigned int fault_flags); #else static inline int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma, unsigned long address, @@ -971,6 +973,14 @@ static inline int handle_mm_fault(struct mm_struct *mm, BUG(); return VM_FAULT_SIGBUS; } +static inline int fixup_user_fault(struct task_struct *tsk, + struct mm_struct *mm, unsigned long address, + unsigned int fault_flags) +{ + /* should never happen if there's no MMU */ + BUG(); + return -EFAULT; +} #endif extern int make_pages_present(unsigned long addr, unsigned long end); @@ -988,8 +998,6 @@ int get_user_pages(struct task_struct *tsk, struct mm_struct *mm, int get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **pages); struct page *get_dump_page(unsigned long addr); -extern int fixup_user_fault(struct task_struct *tsk, struct mm_struct *mm, - unsigned long address, unsigned int fault_flags); extern int try_to_release_page(struct page * page, gfp_t gfp_mask); extern void do_invalidatepage(struct page *page, unsigned long offset); -- cgit v1.2.3 From 89272b8c0d427021bed70b1b83e1a16be375ccf5 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 5 Aug 2011 16:50:30 -0600 Subject: dt: add empty of_get_property for non-dt The patch adds empty function of_get_property for non-dt build, so that drivers migrating to dt can save some '#ifdef CONFIG_OF'. This also fixes the current Tegra compile problem in linux-next. Signed-off-by: Stephen Warren Signed-off-by: Grant Likely --- include/linux/of.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include') diff --git a/include/linux/of.h b/include/linux/of.h index 0085bb01c041..9180dc5cb00b 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -256,6 +256,13 @@ static inline int of_property_read_string(struct device_node *np, return -ENOSYS; } +static inline const void *of_get_property(const struct device_node *node, + const char *name, + int *lenp) +{ + return NULL; +} + #endif /* CONFIG_OF */ static inline int of_property_read_u32(const struct device_node *np, -- cgit v1.2.3 From 8e4bf84474960e832b56293c9b0674c88b5b05ce Mon Sep 17 00:00:00 2001 From: Matthew Wilcox Date: Thu, 11 Aug 2011 10:36:03 +0200 Subject: Move some REQ flags to the common bio/request area REQ_SECURE, REQ_FLUSH and REQ_FUA may all be set on a bio as well as on a request, so relocate them to the shared part of the enum. Signed-off-by: Matthew Wilcox Signed-off-by: Namhyung Kim Reviewed-by: Jeff Moyer Signed-off-by: Jens Axboe --- include/linux/blk_types.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h index 6395692b2e7a..32f0076e844b 100644 --- a/include/linux/blk_types.h +++ b/include/linux/blk_types.h @@ -125,7 +125,11 @@ enum rq_flag_bits { __REQ_SYNC, /* request is sync (sync write or read) */ __REQ_META, /* metadata io request */ __REQ_DISCARD, /* request to discard sectors */ + __REQ_SECURE, /* secure discard (used with __REQ_DISCARD) */ + __REQ_NOIDLE, /* don't anticipate more IO after this one */ + __REQ_FUA, /* forced unit access */ + __REQ_FLUSH, /* request for cache flush */ /* bio only flags */ __REQ_RAHEAD, /* read ahead, can fail anytime */ @@ -135,7 +139,6 @@ enum rq_flag_bits { /* request only flags */ __REQ_SORTED, /* elevator knows about this request */ __REQ_SOFTBARRIER, /* may not be passed by ioscheduler */ - __REQ_FUA, /* forced unit access */ __REQ_NOMERGE, /* don't touch this for merging */ __REQ_STARTED, /* drive already may have started this one */ __REQ_DONTPREP, /* don't call prep for this one */ @@ -146,11 +149,9 @@ enum rq_flag_bits { __REQ_PREEMPT, /* set for "ide_preempt" requests */ __REQ_ALLOCED, /* request came from our alloc pool */ __REQ_COPY_USER, /* contains copies of user pages */ - __REQ_FLUSH, /* request for cache flush */ __REQ_FLUSH_SEQ, /* request for flush sequence */ __REQ_IO_STAT, /* account I/O stat */ __REQ_MIXED_MERGE, /* merge of different types, fail separately */ - __REQ_SECURE, /* secure discard (used with __REQ_DISCARD) */ __REQ_NR_BITS, /* stops here */ }; -- cgit v1.2.3 From c09c47caedc9854d59378d6e34c989e51cfdd2b4 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Thu, 11 Aug 2011 10:36:05 +0200 Subject: blktrace: add FLUSH/FUA support Add FLUSH/FUA support to blktrace. As FLUSH precedes WRITE and/or FUA follows WRITE, use the same 'F' flag for both cases and distinguish them by their (relative) position. The end results look like (other flags might be shown also): - WRITE: W - WRITE_FLUSH: FW - WRITE_FUA: WF - WRITE_FLUSH_FUA: FWF Note that we reuse TC_BARRIER due to lack of bit space of act_mask so that the older versions of blktrace tools will report flush requests as barriers from now on. Cc: Steven Rostedt Cc: Frederic Weisbecker Cc: Ingo Molnar Signed-off-by: Namhyung Kim Reviewed-by: Jeff Moyer Signed-off-by: Jens Axboe --- include/linux/blktrace_api.h | 5 +++-- include/trace/events/block.h | 20 +++++++++++--------- 2 files changed, 14 insertions(+), 11 deletions(-) (limited to 'include') diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h index 8c7c2de7631a..8e9e4bc6d73b 100644 --- a/include/linux/blktrace_api.h +++ b/include/linux/blktrace_api.h @@ -14,7 +14,7 @@ enum blktrace_cat { BLK_TC_READ = 1 << 0, /* reads */ BLK_TC_WRITE = 1 << 1, /* writes */ - BLK_TC_BARRIER = 1 << 2, /* barrier */ + BLK_TC_FLUSH = 1 << 2, /* flush */ BLK_TC_SYNC = 1 << 3, /* sync IO */ BLK_TC_SYNCIO = BLK_TC_SYNC, BLK_TC_QUEUE = 1 << 4, /* queueing/merging */ @@ -28,8 +28,9 @@ enum blktrace_cat { BLK_TC_META = 1 << 12, /* metadata */ BLK_TC_DISCARD = 1 << 13, /* discard requests */ BLK_TC_DRV_DATA = 1 << 14, /* binary per-driver data */ + BLK_TC_FUA = 1 << 15, /* fua requests */ - BLK_TC_END = 1 << 15, /* only 16-bits, reminder */ + BLK_TC_END = 1 << 15, /* we've run out of bits! */ }; #define BLK_TC_SHIFT (16) diff --git a/include/trace/events/block.h b/include/trace/events/block.h index bf366547da25..05c5e61f0a7c 100644 --- a/include/trace/events/block.h +++ b/include/trace/events/block.h @@ -8,6 +8,8 @@ #include #include +#define RWBS_LEN 8 + DECLARE_EVENT_CLASS(block_rq_with_error, TP_PROTO(struct request_queue *q, struct request *rq), @@ -19,7 +21,7 @@ DECLARE_EVENT_CLASS(block_rq_with_error, __field( sector_t, sector ) __field( unsigned int, nr_sector ) __field( int, errors ) - __array( char, rwbs, 6 ) + __array( char, rwbs, RWBS_LEN ) __dynamic_array( char, cmd, blk_cmd_buf_len(rq) ) ), @@ -104,7 +106,7 @@ DECLARE_EVENT_CLASS(block_rq, __field( sector_t, sector ) __field( unsigned int, nr_sector ) __field( unsigned int, bytes ) - __array( char, rwbs, 6 ) + __array( char, rwbs, RWBS_LEN ) __array( char, comm, TASK_COMM_LEN ) __dynamic_array( char, cmd, blk_cmd_buf_len(rq) ) ), @@ -183,7 +185,7 @@ TRACE_EVENT(block_bio_bounce, __field( dev_t, dev ) __field( sector_t, sector ) __field( unsigned int, nr_sector ) - __array( char, rwbs, 6 ) + __array( char, rwbs, RWBS_LEN ) __array( char, comm, TASK_COMM_LEN ) ), @@ -222,7 +224,7 @@ TRACE_EVENT(block_bio_complete, __field( sector_t, sector ) __field( unsigned, nr_sector ) __field( int, error ) - __array( char, rwbs, 6 ) + __array( char, rwbs, RWBS_LEN) ), TP_fast_assign( @@ -249,7 +251,7 @@ DECLARE_EVENT_CLASS(block_bio, __field( dev_t, dev ) __field( sector_t, sector ) __field( unsigned int, nr_sector ) - __array( char, rwbs, 6 ) + __array( char, rwbs, RWBS_LEN ) __array( char, comm, TASK_COMM_LEN ) ), @@ -321,7 +323,7 @@ DECLARE_EVENT_CLASS(block_get_rq, __field( dev_t, dev ) __field( sector_t, sector ) __field( unsigned int, nr_sector ) - __array( char, rwbs, 6 ) + __array( char, rwbs, RWBS_LEN ) __array( char, comm, TASK_COMM_LEN ) ), @@ -456,7 +458,7 @@ TRACE_EVENT(block_split, __field( dev_t, dev ) __field( sector_t, sector ) __field( sector_t, new_sector ) - __array( char, rwbs, 6 ) + __array( char, rwbs, RWBS_LEN ) __array( char, comm, TASK_COMM_LEN ) ), @@ -498,7 +500,7 @@ TRACE_EVENT(block_bio_remap, __field( unsigned int, nr_sector ) __field( dev_t, old_dev ) __field( sector_t, old_sector ) - __array( char, rwbs, 6 ) + __array( char, rwbs, RWBS_LEN) ), TP_fast_assign( @@ -542,7 +544,7 @@ TRACE_EVENT(block_rq_remap, __field( unsigned int, nr_sector ) __field( dev_t, old_dev ) __field( sector_t, old_sector ) - __array( char, rwbs, 6 ) + __array( char, rwbs, RWBS_LEN) ), TP_fast_assign( -- cgit v1.2.3 From 72fa59970f8698023045ab0713d66f3f4f96945c Mon Sep 17 00:00:00 2001 From: Vasiliy Kulikov Date: Mon, 8 Aug 2011 19:02:04 +0400 Subject: move RLIMIT_NPROC check from set_user() to do_execve_common() The patch http://lkml.org/lkml/2003/7/13/226 introduced an RLIMIT_NPROC check in set_user() to check for NPROC exceeding via setuid() and similar functions. Before the check there was a possibility to greatly exceed the allowed number of processes by an unprivileged user if the program relied on rlimit only. But the check created new security threat: many poorly written programs simply don't check setuid() return code and believe it cannot fail if executed with root privileges. So, the check is removed in this patch because of too often privilege escalations related to buggy programs. The NPROC can still be enforced in the common code flow of daemons spawning user processes. Most of daemons do fork()+setuid()+execve(). The check introduced in execve() (1) enforces the same limit as in setuid() and (2) doesn't create similar security issues. Neil Brown suggested to track what specific process has exceeded the limit by setting PF_NPROC_EXCEEDED process flag. With the change only this process would fail on execve(), and other processes' execve() behaviour is not changed. Solar Designer suggested to re-check whether NPROC limit is still exceeded at the moment of execve(). If the process was sleeping for days between set*uid() and execve(), and the NPROC counter step down under the limit, the defered execve() failure because NPROC limit was exceeded days ago would be unexpected. If the limit is not exceeded anymore, we clear the flag on successful calls to execve() and fork(). The flag is also cleared on successful calls to set_user() as the limit was exceeded for the previous user, not the current one. Similar check was introduced in -ow patches (without the process flag). v3 - clear PF_NPROC_EXCEEDED on successful calls to set_user(). Reviewed-by: James Morris Signed-off-by: Vasiliy Kulikov Acked-by: NeilBrown Signed-off-by: Linus Torvalds --- include/linux/sched.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/sched.h b/include/linux/sched.h index 20b03bf94748..4ac2c0578e0f 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1767,6 +1767,7 @@ extern void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t * #define PF_DUMPCORE 0x00000200 /* dumped core */ #define PF_SIGNALED 0x00000400 /* killed by a signal */ #define PF_MEMALLOC 0x00000800 /* Allocating memory */ +#define PF_NPROC_EXCEEDED 0x00001000 /* set_user noticed that RLIMIT_NPROC was exceeded */ #define PF_USED_MATH 0x00002000 /* if unset the fpu must be initialized before use */ #define PF_FREEZING 0x00004000 /* freeze in progress. do not account to load */ #define PF_NOFREEZE 0x00008000 /* this thread should not be frozen */ -- cgit v1.2.3 From 7ec41ee5ad5f716f67041c0d49014d0becb5332c Mon Sep 17 00:00:00 2001 From: Jarkko Nikula Date: Thu, 11 Aug 2011 15:44:57 +0300 Subject: ASoC: omap: Update e-mail address of Jarkko Nikula My gmail account got disabled and I'm not going to reopen it. Signed-off-by: Jarkko Nikula Acked-by: Liam Girdwood Signed-off-by: Mark Brown --- include/sound/tlv320aic3x.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/sound/tlv320aic3x.h b/include/sound/tlv320aic3x.h index 99e0308bf2c2..ffd9bc793105 100644 --- a/include/sound/tlv320aic3x.h +++ b/include/sound/tlv320aic3x.h @@ -1,7 +1,7 @@ /* * Platform data for Texas Instruments TLV320AIC3x codec * - * Author: Jarkko Nikula + * Author: Jarkko Nikula * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as -- cgit v1.2.3 From 7fd781e8f9b72544a1c7f04456eb33d5ffaed592 Mon Sep 17 00:00:00 2001 From: Jaehoon Chung Date: Mon, 8 Aug 2011 18:10:52 +0900 Subject: mmc: remove unused "ddr" parameter in struct mmc_ios "mmc: dw_mmc: Fix DDR mode support" removed the last user. Signed-off-by: Jaehoon Chung Signed-off-by: Kyungmin Park Signed-off-by: Chris Ball --- include/linux/mmc/host.h | 2 -- 1 file changed, 2 deletions(-) (limited to 'include') diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 0f83858147a6..1d09562ccf73 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -56,8 +56,6 @@ struct mmc_ios { #define MMC_TIMING_UHS_SDR104 4 #define MMC_TIMING_UHS_DDR50 5 - unsigned char ddr; /* dual data rate used */ - #define MMC_SDR_MODE 0 #define MMC_1_2V_DDR_MODE 1 #define MMC_1_8V_DDR_MODE 2 -- cgit v1.2.3 From 17f2ae7f677f023997e02fd2ebabd90ea2a0390d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 14 Aug 2011 13:34:31 +0200 Subject: PM / Domains: Fix build for CONFIG_PM_RUNTIME unset Function genpd_queue_power_off_work() is not defined for CONFIG_PM_RUNTIME, so pm_genpd_poweroff_unused() causes a build error to happen in that case. Fix the problem by making pm_genpd_poweroff_unused() depend on CONFIG_PM_RUNTIME too. Signed-off-by: Rafael J. Wysocki --- include/linux/pm_domain.h | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 21097cb086fe..f9ec1736a116 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -72,8 +72,6 @@ extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, extern void pm_genpd_init(struct generic_pm_domain *genpd, struct dev_power_governor *gov, bool is_off); extern int pm_genpd_poweron(struct generic_pm_domain *genpd); -extern void pm_genpd_poweroff_unused(void); -extern void genpd_queue_power_off_work(struct generic_pm_domain *genpd); #else static inline int pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev) @@ -101,8 +99,14 @@ static inline int pm_genpd_poweron(struct generic_pm_domain *genpd) { return -ENOSYS; } -static inline void pm_genpd_poweroff_unused(void) {} +#endif + +#ifdef CONFIG_PM_GENERIC_DOMAINS_RUNTIME +extern void genpd_queue_power_off_work(struct generic_pm_domain *genpd); +extern void pm_genpd_poweroff_unused(void); +#else static inline void genpd_queue_power_off_work(struct generic_pm_domain *gpd) {} +static inline void pm_genpd_poweroff_unused(void) {} #endif #endif /* _LINUX_PM_DOMAIN_H */ -- cgit v1.2.3 From 4853abaae7e4a2af938115ce9071ef8684fb7af4 Mon Sep 17 00:00:00 2001 From: Jeff Moyer Date: Mon, 15 Aug 2011 21:37:25 +0200 Subject: block: fix flush machinery for stacking drivers with differring flush flags Commit ae1b1539622fb46e51b4d13b3f9e5f4c713f86ae, block: reimplement FLUSH/FUA to support merge, introduced a performance regression when running any sort of fsyncing workload using dm-multipath and certain storage (in our case, an HP EVA). The test I ran was fs_mark, and it dropped from ~800 files/sec on ext4 to ~100 files/sec. It turns out that dm-multipath always advertised flush+fua support, and passed commands on down the stack, where those flags used to get stripped off. The above commit changed that behavior: static inline struct request *__elv_next_request(struct request_queue *q) { struct request *rq; while (1) { - while (!list_empty(&q->queue_head)) { + if (!list_empty(&q->queue_head)) { rq = list_entry_rq(q->queue_head.next); - if (!(rq->cmd_flags & (REQ_FLUSH | REQ_FUA)) || - (rq->cmd_flags & REQ_FLUSH_SEQ)) - return rq; - rq = blk_do_flush(q, rq); - if (rq) - return rq; + return rq; } Note that previously, a command would come in here, have REQ_FLUSH|REQ_FUA set, and then get handed off to blk_do_flush: struct request *blk_do_flush(struct request_queue *q, struct request *rq) { unsigned int fflags = q->flush_flags; /* may change, cache it */ bool has_flush = fflags & REQ_FLUSH, has_fua = fflags & REQ_FUA; bool do_preflush = has_flush && (rq->cmd_flags & REQ_FLUSH); bool do_postflush = has_flush && !has_fua && (rq->cmd_flags & REQ_FUA); unsigned skip = 0; ... if (blk_rq_sectors(rq) && !do_preflush && !do_postflush) { rq->cmd_flags &= ~REQ_FLUSH; if (!has_fua) rq->cmd_flags &= ~REQ_FUA; return rq; } So, the flush machinery was bypassed in such cases (q->flush_flags == 0 && rq->cmd_flags & (REQ_FLUSH|REQ_FUA)). Now, however, we don't get into the flush machinery at all. Instead, __elv_next_request just hands a request with flush and fua bits set to the scsi_request_fn, even if the underlying request_queue does not support flush or fua. The agreed upon approach is to fix the flush machinery to allow stacking. While this isn't used in practice (since there is only one request-based dm target, and that target will now reflect the flush flags of the underlying device), it does future-proof the solution, and make it function as designed. In order to make this work, I had to add a field to the struct request, inside the flush structure (to store the original req->end_io). Shaohua had suggested overloading the union with rb_node and completion_data, but the completion data is used by device mapper and can also be used by other drivers. So, I didn't see a way around the additional field. I tested this patch on an HP EVA with both ext4 and xfs, and it recovers the lost performance. Comments and other testers, as always, are appreciated. Cheers, Jeff Signed-off-by: Jeff Moyer Acked-by: Tejun Heo Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 847928546076..84b15d54f8c2 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -118,6 +118,7 @@ struct request { struct { unsigned int seq; struct list_head list; + rq_end_io_fn *saved_end_io; } flush; }; -- cgit v1.2.3 From f991879473828f320a714e9494fb37a26ccd6b66 Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Wed, 17 Aug 2011 13:45:09 +0100 Subject: mm: make HASHED_PAGE_VIRTUAL page_address' struct page argument const. Followup to 33dd4e0ec911 "mm: make some struct page's const" which missed the HASHED_PAGE_VIRTUAL case. Signed-off-by: Ian Campbell Cc: Andrea Arcangeli Cc: Rik van Riel Cc: Michel Lespinasse Cc: Mel Gorman Cc: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/hash.h | 2 +- include/linux/mm.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/linux/hash.h b/include/linux/hash.h index 06d25c189cc5..b80506bdd733 100644 --- a/include/linux/hash.h +++ b/include/linux/hash.h @@ -63,7 +63,7 @@ static inline u32 hash_32(u32 val, unsigned int bits) return hash >> (32 - bits); } -static inline unsigned long hash_ptr(void *ptr, unsigned int bits) +static inline unsigned long hash_ptr(const void *ptr, unsigned int bits) { return hash_long((unsigned long)ptr, bits); } diff --git a/include/linux/mm.h b/include/linux/mm.h index fd599f4bb846..c06454d60a3d 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -737,7 +737,7 @@ static __always_inline void *lowmem_page_address(const struct page *page) #endif #if defined(HASHED_PAGE_VIRTUAL) -void *page_address(struct page *page); +void *page_address(const struct page *page); void set_page_address(struct page *page, void *virtual); void page_address_init(void); #endif -- cgit v1.2.3 From aa462abe8aaf2198d6aef97da20c874ac694a39f Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Wed, 17 Aug 2011 17:40:33 +0100 Subject: mm: fix __page_to_pfn for a const struct page argument This allows the cast in lowmem_page_address (introduced as a warning fixup to 33dd4e0ec911 "mm: make some struct page's const") to be removed. Propagate const'ness to page_to_section() as well since it is required by __page_to_pfn. Signed-off-by: Ian Campbell Acked-by: Rik van Riel Cc: Andrea Arcangeli Cc: Michel Lespinasse Cc: Mel Gorman Cc: Andrew Morton Signed-off-by: Linus Torvalds --- include/asm-generic/memory_model.h | 4 ++-- include/linux/mm.h | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) (limited to 'include') diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h index fb2d63f13f4c..aea9e45efce6 100644 --- a/include/asm-generic/memory_model.h +++ b/include/asm-generic/memory_model.h @@ -39,7 +39,7 @@ }) #define __page_to_pfn(pg) \ -({ struct page *__pg = (pg); \ +({ const struct page *__pg = (pg); \ struct pglist_data *__pgdat = NODE_DATA(page_to_nid(__pg)); \ (unsigned long)(__pg - __pgdat->node_mem_map) + \ __pgdat->node_start_pfn; \ @@ -57,7 +57,7 @@ * section[i].section_mem_map == mem_map's address - start_pfn; */ #define __page_to_pfn(pg) \ -({ struct page *__pg = (pg); \ +({ const struct page *__pg = (pg); \ int __sec = page_to_section(__pg); \ (unsigned long)(__pg - __section_mem_map_addr(__nr_to_section(__sec))); \ }) diff --git a/include/linux/mm.h b/include/linux/mm.h index c06454d60a3d..7438071b44aa 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -685,7 +685,7 @@ static inline void set_page_section(struct page *page, unsigned long section) page->flags |= (section & SECTIONS_MASK) << SECTIONS_PGSHIFT; } -static inline unsigned long page_to_section(struct page *page) +static inline unsigned long page_to_section(const struct page *page) { return (page->flags >> SECTIONS_PGSHIFT) & SECTIONS_MASK; } @@ -720,7 +720,7 @@ static inline void set_page_links(struct page *page, enum zone_type zone, static __always_inline void *lowmem_page_address(const struct page *page) { - return __va(PFN_PHYS(page_to_pfn((struct page *)page))); + return __va(PFN_PHYS(page_to_pfn(page))); } #if defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL) -- cgit v1.2.3 From bb0822954aab7d23a3f902c2a103ee0242f6046e Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Tue, 16 Aug 2011 13:37:14 -0600 Subject: squeeze max-pause area and drop pass-good area Revert the pass-good area introduced in ffd1f609ab10 ("writeback: introduce max-pause and pass-good dirty limits") and make the max-pause area smaller and safe. This fixes ~30% performance regression in the ext3 data=writeback fio_mmap_randwrite_64k/fio_mmap_randrw_64k test cases, where there are 12 JBOD disks, on each disk runs 8 concurrent tasks doing reads+writes. Using deadline scheduler also has a regression, but not that big as CFQ, so this suggests we have some write starvation. The test logs show that - the disks are sometimes under utilized - global dirty pages sometimes rush high to the pass-good area for several hundred seconds, while in the mean time some bdi dirty pages drop to very low value (bdi_dirty << bdi_thresh). Then suddenly the global dirty pages dropped under global dirty threshold and bdi_dirty rush very high (for example, 2 times higher than bdi_thresh). During which time balance_dirty_pages() is not called at all. So the problems are 1) The random writes progress so slow that they break the assumption of the max-pause logic that "8 pages per 200ms is typically more than enough to curb heavy dirtiers". 2) The max-pause logic ignored task_bdi_thresh and thus opens the possibility for some bdi's to over dirty pages, leading to (bdi_dirty >> bdi_thresh) and then (bdi_thresh >> bdi_dirty) for others. 3) The higher max-pause/pass-good thresholds somehow leads to the bad swing of dirty pages. The fix is to allow the task to slightly dirty over task_bdi_thresh, but no way to exceed bdi_dirty and/or global dirty_thresh. Tests show that it fixed the JBOD regression completely (both behavior and performance), while still being able to cut down large pause times in balance_dirty_pages() for single-disk cases. Reported-by: Li Shaohua Tested-by: Li Shaohua Acked-by: Jan Kara Signed-off-by: Wu Fengguang --- include/linux/writeback.h | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'include') diff --git a/include/linux/writeback.h b/include/linux/writeback.h index f1bfa12ea246..2b8963ff0f35 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -12,15 +12,6 @@ * * (thresh - thresh/DIRTY_FULL_SCOPE, thresh) * - * The 1/16 region above the global dirty limit will be put to maximum pauses: - * - * (limit, limit + limit/DIRTY_MAXPAUSE_AREA) - * - * The 1/16 region above the max-pause region, dirty exceeded bdi's will be put - * to loops: - * - * (limit + limit/DIRTY_MAXPAUSE_AREA, limit + limit/DIRTY_PASSGOOD_AREA) - * * Further beyond, all dirtier tasks will enter a loop waiting (possibly long * time) for the dirty pages to drop, unless written enough pages. * @@ -31,8 +22,6 @@ */ #define DIRTY_SCOPE 8 #define DIRTY_FULL_SCOPE (DIRTY_SCOPE / 2) -#define DIRTY_MAXPAUSE_AREA 16 -#define DIRTY_PASSGOOD_AREA 8 /* * 4MB minimal write chunk size -- cgit v1.2.3 From ecb4433550f0620f3d1471ae7099037ede30a91e Mon Sep 17 00:00:00 2001 From: Stanislaw Gruszka Date: Fri, 12 Aug 2011 14:00:59 +0200 Subject: mac80211: fix suspend/resume races with unregister hw Do not call ->suspend, ->resume methods after we unregister wiphy. Also delete sta_clanup timer after we finish wiphy unregister to avoid this: WARNING: at lib/debugobjects.c:262 debug_print_object+0x85/0xa0() Hardware name: 6369CTO ODEBUG: free active (active state 0) object type: timer_list hint: sta_info_cleanup+0x0/0x180 [mac80211] Modules linked in: aes_i586 aes_generic fuse bridge stp llc autofs4 sunrpc cpufreq_ondemand acpi_cpufreq mperf ext2 dm_mod uinput thinkpad_acpi hwmon sg arc4 rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac80211 cfg80211 i2c_i801 iTCO_wdt iTCO_vendor_support e1000e ext4 mbcache jbd2 sd_mod crc_t10dif sr_mod cdrom yenta_socket ahci libahci pata_acpi ata_generic ata_piix i915 drm_kms_helper drm i2c_algo_bit video [last unloaded: microcode] Pid: 5663, comm: pm-hibernate Not tainted 3.1.0-rc1-wl+ #19 Call Trace: [] warn_slowpath_common+0x6d/0xa0 [] ? debug_print_object+0x85/0xa0 [] ? debug_print_object+0x85/0xa0 [] warn_slowpath_fmt+0x2e/0x30 [] debug_print_object+0x85/0xa0 [] ? sta_info_alloc+0x1a0/0x1a0 [mac80211] [] debug_check_no_obj_freed+0xe2/0x180 [] kfree+0x8b/0x150 [] cfg80211_dev_free+0x7e/0x90 [cfg80211] [] wiphy_dev_release+0xd/0x10 [cfg80211] [] device_release+0x19/0x80 [] kobject_release+0x7a/0x1c0 [] ? rtnl_unlock+0x8/0x10 [] ? wiphy_resume+0x6b/0x80 [cfg80211] [] ? kobject_del+0x30/0x30 [] kref_put+0x2d/0x60 [] kobject_put+0x1d/0x50 [] ? mutex_lock+0x14/0x40 [] put_device+0xf/0x20 [] dpm_resume+0xca/0x160 [] hibernation_snapshot+0xcd/0x260 [] ? freeze_processes+0x3f/0x90 [] hibernate+0xcb/0x1e0 [] ? pm_async_store+0x40/0x40 [] state_store+0xa0/0xb0 [] ? pm_async_store+0x40/0x40 [] kobj_attr_store+0x20/0x30 [] sysfs_write_file+0x94/0xf0 [] vfs_write+0x9a/0x160 [] ? sysfs_open_file+0x200/0x200 [] sys_write+0x3d/0x70 [] sysenter_do_call+0x12/0x28 Cc: stable@kernel.org Signed-off-by: Stanislaw Gruszka Signed-off-by: John W. Linville --- include/net/cfg80211.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index d17f47fc9e31..408ae4882d22 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1865,6 +1865,9 @@ struct wiphy { * you need use set_wiphy_dev() (see below) */ struct device dev; + /* protects ->resume, ->suspend sysfs callbacks against unregister hw */ + bool registered; + /* dir in debugfs: ieee80211/ */ struct dentry *debugfsdir; -- cgit v1.2.3 From 052605c6caa3e1edf8eee8fe5fe6d53f5721f39a Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Tue, 26 Jul 2011 17:48:43 -0700 Subject: target: Make standard INQUIRY return 'not connected' for tpg_virt_lun0 This patch changes target_emulate_inquiry_std() to set the 'not connected' (0x35) bit in standard INQUIRY response data when we are processing a request to a virtual LUN=0 mapping from struct se_device *g_lun0_dev that have been setup for us in transport_lookup_cmd_lun(). This addresses an issue where qla2xxx FC clients need to be able to create demo-mode I_T FC Nexuses by default, but should not be exposing the default set of TPG LUNs to all FC clients. This includes adding an new optional target_core_fabric_ops->tpg_check_demo_mode_login_only() caller to allow demo_mode nexuses to skip the old default of bulding a demo-mode MappedLUNs list via core_tpg_add_node_to_devs(). (roland: Add missing tpg_check_demo_mode_login_only check in core_dev_add_lun) Reported-by: Roland Dreier Cc: Andrew Vasquez Signed-off-by: Nicholas Bellinger --- include/target/target_core_fabric_ops.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h index 2de8fe907596..126c675f4f14 100644 --- a/include/target/target_core_fabric_ops.h +++ b/include/target/target_core_fabric_ops.h @@ -27,6 +27,12 @@ struct target_core_fabric_ops { int (*tpg_check_demo_mode_cache)(struct se_portal_group *); int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *); int (*tpg_check_prod_mode_write_protect)(struct se_portal_group *); + /* + * Optionally used by fabrics to allow demo-mode login, but not + * expose any TPG LUNs, and return 'not connected' in standard + * inquiry response + */ + int (*tpg_check_demo_mode_login_only)(struct se_portal_group *); struct se_node_acl *(*tpg_alloc_fabric_acl)( struct se_portal_group *); void (*tpg_release_fabric_acl)(struct se_portal_group *, -- cgit v1.2.3 From 0d7c5f2572ccfa7bf83292b1506926663f2d164a Mon Sep 17 00:00:00 2001 From: Pavan Savoy Date: Wed, 10 Aug 2011 10:18:31 -0500 Subject: drivers:misc:ti-st: platform hooks for chip states Certain platform specific or Host-WiLink Interface specific actions would be required to be taken when the chip is being enabled and after the chip is disabled such as configuration of the mux modes for the GPIO of host connected to the nshutdown of the chip or relinquishing UART after the chip is disabled. Similar actions can also be taken when the chip is in deep sleep or when the chip is awake. Performance enhancements such as configuring the host to run faster when chip is awake and slower when chip is asleep can also be made here. Signed-off-by: Pavan Savoy Signed-off-by: Greg Kroah-Hartman --- include/linux/ti_wilink_st.h | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h index b004e557caa9..2ef4385da6bf 100644 --- a/include/linux/ti_wilink_st.h +++ b/include/linux/ti_wilink_st.h @@ -410,7 +410,28 @@ struct gps_event_hdr { u16 plen; } __attribute__ ((packed)); -/* platform data */ +/** + * struct ti_st_plat_data - platform data shared between ST driver and + * platform specific board file which adds the ST device. + * @nshutdown_gpio: Host's GPIO line to which chip's BT_EN is connected. + * @dev_name: The UART/TTY name to which chip is interfaced. (eg: /dev/ttyS1) + * @flow_cntrl: Should always be 1, since UART's CTS/RTS is used for PM + * purposes. + * @baud_rate: The baud rate supported by the Host UART controller, this will + * be shared across with the chip via a HCI VS command from User-Space Init + * Mgr application. + * @suspend: + * @resume: legacy PM routines hooked to platform specific board file, so as + * to take chip-host interface specific action. + * @chip_enable: + * @chip_disable: Platform/Interface specific mux mode setting, GPIO + * configuring, Host side PM disabling etc.. can be done here. + * @chip_asleep: + * @chip_awake: Chip specific deep sleep states is communicated to Host + * specific board-xx.c to take actions such as cut UART clocks when chip + * asleep or run host faster when chip awake etc.. + * + */ struct ti_st_plat_data { long nshutdown_gpio; unsigned char dev_name[UART_DEV_NAME_LEN]; /* uart name */ @@ -418,6 +439,10 @@ struct ti_st_plat_data { unsigned long baud_rate; int (*suspend)(struct platform_device *, pm_message_t); int (*resume)(struct platform_device *); + int (*chip_enable) (struct kim_data_s *); + int (*chip_disable) (struct kim_data_s *); + int (*chip_asleep) (struct kim_data_s *); + int (*chip_awake) (struct kim_data_s *); }; #endif /* TI_WILINK_ST_H */ -- cgit v1.2.3 From 24d406a6bf736f7aebdc8fa0f0ec86e0890c6d24 Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Wed, 10 Aug 2011 14:59:28 +0200 Subject: TTY: pty, fix pty counting tty_operations->remove is normally called like: queue_release_one_tty ->tty_shutdown ->tty_driver_remove_tty ->tty_operations->remove However tty_shutdown() is called from queue_release_one_tty() only if tty_operations->shutdown is NULL. But for pty, it is not. pty_unix98_shutdown() is used there as ->shutdown. So tty_operations->remove of pty (i.e. pty_unix98_remove()) is never called. This results in invalid pty_count. I.e. what can be seen in /proc/sys/kernel/pty/nr. I see this was already reported at: https://lkml.org/lkml/2009/11/5/370 But it was not fixed since then. This patch is kind of a hackish way. The problem lies in ->install. We allocate there another tty (so-called tty->link). So ->install is called once, but ->remove twice, for both tty and tty->link. The fix here is to count both tty and tty->link and divide the count by 2 for user. And to have ->remove called, let's make tty_driver_remove_tty() global and call that from pty_unix98_shutdown() (tty_operations->shutdown). While at it, let's document that when ->shutdown is defined, tty_shutdown() is not called. Signed-off-by: Jiri Slaby Cc: Alan Cox Cc: "H. Peter Anvin" Cc: stable Signed-off-by: Greg Kroah-Hartman --- include/linux/tty.h | 2 ++ include/linux/tty_driver.h | 3 +++ 2 files changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/tty.h b/include/linux/tty.h index 44bc0c5617e1..5f2ede82b3d6 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -421,6 +421,8 @@ extern void tty_driver_flush_buffer(struct tty_struct *tty); extern void tty_throttle(struct tty_struct *tty); extern void tty_unthrottle(struct tty_struct *tty); extern int tty_do_resize(struct tty_struct *tty, struct winsize *ws); +extern void tty_driver_remove_tty(struct tty_driver *driver, + struct tty_struct *tty); extern void tty_shutdown(struct tty_struct *tty); extern void tty_free_termios(struct tty_struct *tty); extern int is_current_pgrp_orphaned(void); diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h index 9deeac855240..ecdaeb98b293 100644 --- a/include/linux/tty_driver.h +++ b/include/linux/tty_driver.h @@ -47,6 +47,9 @@ * * This routine is called synchronously when a particular tty device * is closed for the last time freeing up the resources. + * Note that tty_shutdown() is not called if ops->shutdown is defined. + * This means one is responsible to take care of calling ops->remove (e.g. + * via tty_driver_remove_tty) and releasing tty->termios. * * * void (*cleanup)(struct tty_struct * tty); -- cgit v1.2.3 From be27425dcc516fd08245b047ea57f83b8f6f0903 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Fri, 19 Aug 2011 16:15:10 -0700 Subject: Add a personality to report 2.6.x version numbers I ran into a couple of programs which broke with the new Linux 3.0 version. Some of those were binary only. I tried to use LD_PRELOAD to work around it, but it was quite difficult and in one case impossible because of a mix of 32bit and 64bit executables. For example, all kind of management software from HP doesnt work, unless we pretend to run a 2.6 kernel. $ uname -a Linux svivoipvnx001 3.0.0-08107-g97cd98f #1062 SMP Fri Aug 12 18:11:45 CEST 2011 i686 i686 i386 GNU/Linux $ hpacucli ctrl all show Error: No controllers detected. $ rpm -qf /usr/sbin/hpacucli hpacucli-8.75-12.0 Another notable case is that Python now reports "linux3" from sys.platform(); which in turn can break things that were checking sys.platform() == "linux2": https://bugzilla.mozilla.org/show_bug.cgi?id=664564 It seems pretty clear to me though it's a bug in the apps that are using '==' instead of .startswith(), but this allows us to unbreak broken programs. This patch adds a UNAME26 personality that makes the kernel report a 2.6.40+x version number instead. The x is the x in 3.x. I know this is somewhat ugly, but I didn't find a better workaround, and compatibility to existing programs is important. Some programs also read /proc/sys/kernel/osrelease. This can be worked around in user space with mount --bind (and a mount namespace) To use: wget ftp://ftp.kernel.org/pub/linux/kernel/people/ak/uname26/uname26.c gcc -o uname26 uname26.c ./uname26 program Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- include/linux/personality.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/personality.h b/include/linux/personality.h index eec3bae164d4..8fc7dd1a57ff 100644 --- a/include/linux/personality.h +++ b/include/linux/personality.h @@ -22,6 +22,7 @@ extern int __set_personality(unsigned int); * These occupy the top three bytes. */ enum { + UNAME26 = 0x0020000, ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA space */ FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs point to descriptors * (signal handling) -- cgit v1.2.3 From e096d0c7e2e4e5893792db865dd065ac73cf1f00 Mon Sep 17 00:00:00 2001 From: Josh Boyer Date: Thu, 25 Aug 2011 07:48:12 -0400 Subject: lockdep: Add helper function for dir vs file i_mutex annotation Purely in-memory filesystems do not use the inode hash as the dcache tells us if an entry already exists. As a result, they do not call unlock_new_inode, and thus directory inodes do not get put into a different lockdep class for i_sem. We need the different lockdep classes, because the locking order for i_mutex is different for directory inodes and regular inodes. Directory inodes can do "readdir()", which takes i_mutex *before* possibly taking mm->mmap_sem (due to a page fault while copying the directory entry to user space). In contrast, regular inodes can be mmap'ed, which takes mm->mmap_sem before accessing i_mutex. The two cases can never happen for the same inode, so no real deadlock can occur, but without the different lockdep classes, lockdep cannot understand that. As a result, if CONFIG_DEBUG_LOCK_ALLOC is set, this can lead to false positives from lockdep like below: find/645 is trying to acquire lock: (&mm->mmap_sem){++++++}, at: [] might_fault+0x5c/0xac but task is already holding lock: (&sb->s_type->i_mutex_key#15){+.+.+.}, at: [] vfs_readdir+0x5b/0xb4 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&sb->s_type->i_mutex_key#15){+.+.+.}: [] lock_acquire+0xbf/0x103 [] __mutex_lock_common+0x4c/0x361 [] mutex_lock_nested+0x40/0x45 [] hugetlbfs_file_mmap+0x82/0x110 [] mmap_region+0x258/0x432 [] do_mmap_pgoff+0x2ac/0x306 [] sys_mmap_pgoff+0x118/0x16a [] sys_mmap+0x22/0x24 [] system_call_fastpath+0x16/0x1b -> #0 (&mm->mmap_sem){++++++}: [] __lock_acquire+0xa1a/0xcf7 [] lock_acquire+0xbf/0x103 [] might_fault+0x89/0xac [] filldir+0x6f/0xc7 [] dcache_readdir+0x67/0x205 [] vfs_readdir+0x7b/0xb4 [] sys_getdents+0x7e/0xd1 [] system_call_fastpath+0x16/0x1b This patch moves the directory vs file lockdep annotation into a helper function that can be called by in-memory filesystems and has hugetlbfs call it. Signed-off-by: Josh Boyer Acked-by: Peter Zijlstra Signed-off-by: Linus Torvalds --- include/linux/fs.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/linux/fs.h b/include/linux/fs.h index 178cdb4f1d4a..c2bd68f2277a 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -2318,6 +2318,11 @@ extern struct inode * iget5_locked(struct super_block *, unsigned long, int (*te extern struct inode * iget_locked(struct super_block *, unsigned long); extern int insert_inode_locked4(struct inode *, unsigned long, int (*test)(struct inode *, void *), void *); extern int insert_inode_locked(struct inode *); +#ifdef CONFIG_DEBUG_LOCK_ALLOC +extern void lockdep_annotate_inode_mutex_key(struct inode *inode); +#else +static inline void lockdep_annotate_inode_mutex_key(struct inode *inode) { }; +#endif extern void unlock_new_inode(struct inode *); extern unsigned int get_next_ino(void); -- cgit v1.2.3 From a801876638c5ce650223476c4eb8f37cea32dc1c Mon Sep 17 00:00:00 2001 From: Evgeniy Polyakov Date: Thu, 25 Aug 2011 15:59:06 -0700 Subject: MAINTAINERS: Evgeniy has moved Signed-off-by: Evgeniy Polyakov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/connector.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/connector.h b/include/linux/connector.h index 0c69ad825b39..3c9c54fd5690 100644 --- a/include/linux/connector.h +++ b/include/linux/connector.h @@ -1,7 +1,7 @@ /* * connector.h * - * 2004-2005 Copyright (c) Evgeniy Polyakov + * 2004-2005 Copyright (c) Evgeniy Polyakov * All rights reserved. * * This program is free software; you can redistribute it and/or modify -- cgit v1.2.3 From 284fb68d00c56e971ed01e0b4bac5ddd4d1b74ab Mon Sep 17 00:00:00 2001 From: Alexandre Bounine Date: Thu, 25 Aug 2011 15:59:13 -0700 Subject: rapidio: fix use of non-compatible registers Replace/remove use of RIO v.1.2 registers/bits that are not forward-compatible with newer versions of RapidIO specification. RapidIO specification v.1.3 removed Write Port CSR, Doorbell CSR, Mailbox CSR and Mailbox and Doorbell bits of the PEF CAR. Use of removed (since RIO v.1.3) register bits affects users of currently available 1.3 and 2.x compliant devices who may use not so recent kernel versions. Removing checks for unsupported bits makes corresponding routines compatible with all versions of RapidIO specification. Therefore, backporting makes stable kernel versions compliant with RIO v.1.3 and later as well. Signed-off-by: Alexandre Bounine Cc: Kumar Gala Cc: Matt Porter Cc: Li Yang Cc: Thomas Moll Cc: Chul Kim Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/rio_regs.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/linux/rio_regs.h b/include/linux/rio_regs.h index 9026b30238f3..218168a2b5e9 100644 --- a/include/linux/rio_regs.h +++ b/include/linux/rio_regs.h @@ -36,12 +36,12 @@ #define RIO_PEF_PROCESSOR 0x20000000 /* [I] Processor */ #define RIO_PEF_SWITCH 0x10000000 /* [I] Switch */ #define RIO_PEF_MULTIPORT 0x08000000 /* [VI, 2.1] Multiport */ -#define RIO_PEF_INB_MBOX 0x00f00000 /* [II] Mailboxes */ -#define RIO_PEF_INB_MBOX0 0x00800000 /* [II] Mailbox 0 */ -#define RIO_PEF_INB_MBOX1 0x00400000 /* [II] Mailbox 1 */ -#define RIO_PEF_INB_MBOX2 0x00200000 /* [II] Mailbox 2 */ -#define RIO_PEF_INB_MBOX3 0x00100000 /* [II] Mailbox 3 */ -#define RIO_PEF_INB_DOORBELL 0x00080000 /* [II] Doorbells */ +#define RIO_PEF_INB_MBOX 0x00f00000 /* [II, <= 1.2] Mailboxes */ +#define RIO_PEF_INB_MBOX0 0x00800000 /* [II, <= 1.2] Mailbox 0 */ +#define RIO_PEF_INB_MBOX1 0x00400000 /* [II, <= 1.2] Mailbox 1 */ +#define RIO_PEF_INB_MBOX2 0x00200000 /* [II, <= 1.2] Mailbox 2 */ +#define RIO_PEF_INB_MBOX3 0x00100000 /* [II, <= 1.2] Mailbox 3 */ +#define RIO_PEF_INB_DOORBELL 0x00080000 /* [II, <= 1.2] Doorbells */ #define RIO_PEF_EXT_RT 0x00000200 /* [III, 1.3] Extended route table support */ #define RIO_PEF_STD_RT 0x00000100 /* [III, 1.3] Standard route table support */ #define RIO_PEF_CTLS 0x00000010 /* [III] CTLS */ @@ -102,7 +102,7 @@ #define RIO_SWITCH_RT_LIMIT 0x34 /* [III, 1.3] Switch Route Table Destination ID Limit CAR */ #define RIO_RT_MAX_DESTID 0x0000ffff -#define RIO_MBOX_CSR 0x40 /* [II] Mailbox CSR */ +#define RIO_MBOX_CSR 0x40 /* [II, <= 1.2] Mailbox CSR */ #define RIO_MBOX0_AVAIL 0x80000000 /* [II] Mbox 0 avail */ #define RIO_MBOX0_FULL 0x40000000 /* [II] Mbox 0 full */ #define RIO_MBOX0_EMPTY 0x20000000 /* [II] Mbox 0 empty */ @@ -128,8 +128,8 @@ #define RIO_MBOX3_FAIL 0x00000008 /* [II] Mbox 3 fail */ #define RIO_MBOX3_ERROR 0x00000004 /* [II] Mbox 3 error */ -#define RIO_WRITE_PORT_CSR 0x44 /* [I] Write Port CSR */ -#define RIO_DOORBELL_CSR 0x44 /* [II] Doorbell CSR */ +#define RIO_WRITE_PORT_CSR 0x44 /* [I, <= 1.2] Write Port CSR */ +#define RIO_DOORBELL_CSR 0x44 /* [II, <= 1.2] Doorbell CSR */ #define RIO_DOORBELL_AVAIL 0x80000000 /* [II] Doorbell avail */ #define RIO_DOORBELL_FULL 0x40000000 /* [II] Doorbell full */ #define RIO_DOORBELL_EMPTY 0x20000000 /* [II] Doorbell empty */ -- cgit v1.2.3 From cc7993f6439b49909a8792660c4d0741fec9d584 Mon Sep 17 00:00:00 2001 From: Dilan Lee Date: Thu, 25 Aug 2011 15:59:17 -0700 Subject: backlight: add a callback 'notify_after' for backlight control We need a callback to do some things after pwm_enable, pwm_disable and pwm_config. Signed-off-by: Dilan Lee Reviewed-by: Robert Morell Reviewed-by: Arun Murthy Cc: Richard Purdie Cc: Paul Mundt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/pwm_backlight.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h index 5e3e25a3c9c3..63d2df43e61a 100644 --- a/include/linux/pwm_backlight.h +++ b/include/linux/pwm_backlight.h @@ -14,6 +14,7 @@ struct platform_pwm_backlight_data { unsigned int pwm_period_ns; int (*init)(struct device *dev); int (*notify)(struct device *dev, int brightness); + void (*notify_after)(struct device *dev, int brightness); void (*exit)(struct device *dev); int (*check_fb)(struct device *dev, struct fb_info *info); }; -- cgit v1.2.3 From f5b940997397229975ea073679b03967932a541b Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 26 Aug 2011 18:03:11 -0400 Subject: All Arch: remove linkage for sys_nfsservctl system call The nfsservctl system call is now gone, so we should remove all linkage for it. Signed-off-by: NeilBrown Signed-off-by: J. Bruce Fields Signed-off-by: Linus Torvalds --- include/asm-generic/unistd.h | 2 +- include/linux/compat.h | 1 - include/linux/syscalls.h | 3 --- 3 files changed, 1 insertion(+), 5 deletions(-) (limited to 'include') diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h index 4f76959397fa..f4c38d8c6674 100644 --- a/include/asm-generic/unistd.h +++ b/include/asm-generic/unistd.h @@ -143,7 +143,7 @@ __SYSCALL(__NR_pivot_root, sys_pivot_root) /* fs/nfsctl.c */ #define __NR_nfsservctl 42 -__SC_COMP(__NR_nfsservctl, sys_nfsservctl, compat_sys_nfsservctl) +__SYSCALL(__NR_nfsservctl, sys_ni_syscall) /* fs/open.c */ #define __NR3264_statfs 43 diff --git a/include/linux/compat.h b/include/linux/compat.h index 8779405e15a8..c6e7523bf765 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -438,7 +438,6 @@ asmlinkage long compat_sys_ppoll(struct pollfd __user *ufds, struct compat_timespec __user *tsp, const compat_sigset_t __user *sigmask, compat_size_t sigsetsize); -asmlinkage long compat_sys_nfsservctl(int cmd, void *notused, void *notused2); asmlinkage long compat_sys_signalfd4(int ufd, const compat_sigset_t __user *sigmask, compat_size_t sigsetsize, int flags); diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 8c03b98df5f9..1ff0ec2a5e8d 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -702,9 +702,6 @@ asmlinkage long sys_sysctl(struct __sysctl_args __user *args); asmlinkage long sys_sysinfo(struct sysinfo __user *info); asmlinkage long sys_sysfs(int option, unsigned long arg1, unsigned long arg2); -asmlinkage long sys_nfsservctl(int cmd, - struct nfsctl_arg __user *arg, - void __user *res); asmlinkage long sys_syslog(int type, char __user *buf, int len); asmlinkage long sys_uselib(const char __user *library); asmlinkage long sys_ni_syscall(void); -- cgit v1.2.3 From a8d757ef076f0f95f13a918808824058de25b3eb Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Thu, 25 Aug 2011 15:58:03 +0200 Subject: perf events: Fix slow and broken cgroup context switch code The current cgroup context switch code was incorrect leading to bogus counts. Furthermore, as soon as there was an active cgroup event on a CPU, the context switch cost on that CPU would increase by a significant amount as demonstrated by a simple ping/pong example: $ ./pong Both processes pinned to CPU1, running for 10s 10684.51 ctxsw/s Now start a cgroup perf stat: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 100 $ ./pong Both processes pinned to CPU1, running for 10s 6674.61 ctxsw/s That's a 37% penalty. Note that pong is not even in the monitored cgroup. The results shown by perf stat are bogus: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 100 Performance counter stats for 'sleep 100': CPU1 cycles test CPU1 16,984,189,138 cycles # 0.000 GHz The second 'cycles' event should report a count @ CPU clock (here 2.4GHz) as it is counting across all cgroups. The patch below fixes the bogus accounting and bypasses any cgroup switches in case the outgoing and incoming tasks are in the same cgroup. With this patch the same test now yields: $ ./pong Both processes pinned to CPU1, running for 10s 10775.30 ctxsw/s Start perf stat with cgroup: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 10 Run pong outside the cgroup: $ /pong Both processes pinned to CPU1, running for 10s 10687.80 ctxsw/s The penalty is now less than 2%. And the results for perf stat are correct: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 10 Performance counter stats for 'sleep 10': CPU1 cycles test # 0.000 GHz CPU1 23,933,981,448 cycles # 0.000 GHz Now perf stat reports the correct counts for for the non cgroup event. If we run pong inside the cgroup, then we also get the correct counts: $ perf stat -e cycles,cycles -A -a -G test -C 1 -- sleep 10 Performance counter stats for 'sleep 10': CPU1 22,297,726,205 cycles test # 0.000 GHz CPU1 23,933,981,448 cycles # 0.000 GHz 10.001457237 seconds time elapsed Signed-off-by: Stephane Eranian Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20110825135803.GA4697@quad Signed-off-by: Ingo Molnar --- include/linux/perf_event.h | 24 +++++++++++++++--------- 1 file changed, 15 insertions(+), 9 deletions(-) (limited to 'include') diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 245bafdafd5e..c816075c01ce 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -944,8 +944,10 @@ extern void perf_pmu_unregister(struct pmu *pmu); extern int perf_num_counters(void); extern const char *perf_pmu_name(void); -extern void __perf_event_task_sched_in(struct task_struct *task); -extern void __perf_event_task_sched_out(struct task_struct *task, struct task_struct *next); +extern void __perf_event_task_sched_in(struct task_struct *prev, + struct task_struct *task); +extern void __perf_event_task_sched_out(struct task_struct *prev, + struct task_struct *next); extern int perf_event_init_task(struct task_struct *child); extern void perf_event_exit_task(struct task_struct *child); extern void perf_event_free_task(struct task_struct *task); @@ -1059,17 +1061,20 @@ perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr) extern struct jump_label_key perf_sched_events; -static inline void perf_event_task_sched_in(struct task_struct *task) +static inline void perf_event_task_sched_in(struct task_struct *prev, + struct task_struct *task) { if (static_branch(&perf_sched_events)) - __perf_event_task_sched_in(task); + __perf_event_task_sched_in(prev, task); } -static inline void perf_event_task_sched_out(struct task_struct *task, struct task_struct *next) +static inline void perf_event_task_sched_out(struct task_struct *prev, + struct task_struct *next) { perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, NULL, 0); - __perf_event_task_sched_out(task, next); + if (static_branch(&perf_sched_events)) + __perf_event_task_sched_out(prev, next); } extern void perf_event_mmap(struct vm_area_struct *vma); @@ -1139,10 +1144,11 @@ extern void perf_event_disable(struct perf_event *event); extern void perf_event_task_tick(void); #else static inline void -perf_event_task_sched_in(struct task_struct *task) { } +perf_event_task_sched_in(struct task_struct *prev, + struct task_struct *task) { } static inline void -perf_event_task_sched_out(struct task_struct *task, - struct task_struct *next) { } +perf_event_task_sched_out(struct task_struct *prev, + struct task_struct *next) { } static inline int perf_event_init_task(struct task_struct *child) { return 0; } static inline void perf_event_exit_task(struct task_struct *child) { } static inline void perf_event_free_task(struct task_struct *task) { } -- cgit v1.2.3 From f88657ce3f9713a0c62101dffb0e972a979e77b9 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Wed, 3 Aug 2011 19:55:32 +0530 Subject: fs/9p: Add OS dependent open flags in 9p protocol Some of the flags are OS/arch dependent we add a 9p protocol value which maps to asm-generic/fcntl.h values in Linux Based on the original patch from Venkateswararao Jujjuri Signed-off-by: Aneesh Kumar K.V --- include/net/9p/9p.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'include') diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index 342dcf13d039..957ab99897a1 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -288,6 +288,30 @@ enum p9_perm_t { P9_DMSETVTX = 0x00010000, }; +/* 9p2000.L open flags */ +#define P9_DOTL_RDONLY 00000000 +#define P9_DOTL_WRONLY 00000001 +#define P9_DOTL_RDWR 00000002 +#define P9_DOTL_NOACCESS 00000003 +#define P9_DOTL_CREATE 00000100 +#define P9_DOTL_EXCL 00000200 +#define P9_DOTL_NOCTTY 00000400 +#define P9_DOTL_TRUNC 00001000 +#define P9_DOTL_APPEND 00002000 +#define P9_DOTL_NONBLOCK 00004000 +#define P9_DOTL_DSYNC 00010000 +#define P9_DOTL_FASYNC 00020000 +#define P9_DOTL_DIRECT 00040000 +#define P9_DOTL_LARGEFILE 00100000 +#define P9_DOTL_DIRECTORY 00200000 +#define P9_DOTL_NOFOLLOW 00400000 +#define P9_DOTL_NOATIME 01000000 +#define P9_DOTL_CLOEXEC 02000000 +#define P9_DOTL_SYNC 04000000 + +/* 9p2000.L at flags */ +#define P9_DOTL_AT_REMOVEDIR 0x200 + /** * enum p9_qid_t - QID types * @P9_QTDIR: directory -- cgit v1.2.3 From 51b8b4fb32271d39fbdd760397406177b2b0fd36 Mon Sep 17 00:00:00 2001 From: Jim Garlick Date: Sun, 21 Aug 2011 00:21:18 +0530 Subject: fs/9p: Use protocol-defined value for lock/getlock 'type' field. Signed-off-by: Jim Garlick Signed-off-by: Aneesh Kumar K.V --- include/net/9p/9p.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include') diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h index 957ab99897a1..a6326ef8ade6 100644 --- a/include/net/9p/9p.h +++ b/include/net/9p/9p.h @@ -312,6 +312,11 @@ enum p9_perm_t { /* 9p2000.L at flags */ #define P9_DOTL_AT_REMOVEDIR 0x200 +/* 9p2000.L lock type */ +#define P9_LOCK_TYPE_RDLCK 0 +#define P9_LOCK_TYPE_WRLCK 1 +#define P9_LOCK_TYPE_UNLCK 2 + /** * enum p9_qid_t - QID types * @P9_QTDIR: directory -- cgit v1.2.3 From d2f152878d457a84f3708acee5f682322386a79b Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 8 Sep 2011 10:16:50 -0700 Subject: wireless: fix kernel-doc warning in net/cfg80211.h Fix kernel-doc warning in net/cfg80211.h: Warning(include/net/cfg80211.h:1884): No description found for parameter 'registered' Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- include/net/cfg80211.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 408ae4882d22..401d73bd151f 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -1744,6 +1744,8 @@ struct wiphy_wowlan_support { * by default for perm_addr. In this case, the mask should be set to * all-zeroes. In this case it is assumed that the device can handle * the same number of arbitrary MAC addresses. + * @registered: protects ->resume and ->suspend sysfs callbacks against + * unregister hardware * @debugfsdir: debugfs directory used for this wiphy, will be renamed * automatically on wiphy renames * @dev: (virtual) struct device for this wiphy -- cgit v1.2.3 From bff747c58cf97bf4fc8b499ee0f419b59d6b226d Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Thu, 8 Sep 2011 10:16:47 -0700 Subject: regulator: fix kernel-doc warning in consumer.h Fix kernel-doc warning about internal/private data by marking it as "private:" so that kernel-doc will ignore it. Warning(include/linux/regulator/consumer.h:128): No description found for parameter 'ret' Signed-off-by: Randy Dunlap Acked-by: Mark Brown Signed-off-by: Linus Torvalds --- include/linux/regulator/consumer.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h index 26f6ea4444e3..b47771aa5718 100644 --- a/include/linux/regulator/consumer.h +++ b/include/linux/regulator/consumer.h @@ -123,7 +123,7 @@ struct regulator_bulk_data { const char *supply; struct regulator *consumer; - /* Internal use */ + /* private: Internal use */ int ret; }; -- cgit v1.2.3 From 185efc0f9a1f2d6ad6d4782c5d9e529f3290567f Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Wed, 14 Sep 2011 16:21:58 -0700 Subject: memcg: Revert "memcg: add memory.vmscan_stat" Revert the post-3.0 commit 82f9d486e59f5 ("memcg: add memory.vmscan_stat"). The implementation of per-memcg reclaim statistics violates how memcg hierarchies usually behave: hierarchically. The reclaim statistics are accounted to child memcgs and the parent hitting the limit, but not to hierarchy levels in between. Usually, hierarchical statistics are perfectly recursive, with each level representing the sum of itself and all its children. Since this exports statistics to userspace, this may lead to confusion and problems with changing things after the release, so revert it now, we can try again later. Signed-off-by: Johannes Weiner Acked-by: KAMEZAWA Hiroyuki Cc: Daisuke Nishimura Cc: Michal Hocko Cc: Ying Han Cc: Balbir Singh Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/memcontrol.h | 19 ------------------- include/linux/swap.h | 6 ++++++ 2 files changed, 6 insertions(+), 19 deletions(-) (limited to 'include') diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 3b535db00a94..343bd7661f2a 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -39,16 +39,6 @@ extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, struct mem_cgroup *mem_cont, int active, int file); -struct memcg_scanrecord { - struct mem_cgroup *mem; /* scanend memory cgroup */ - struct mem_cgroup *root; /* scan target hierarchy root */ - int context; /* scanning context (see memcontrol.c) */ - unsigned long nr_scanned[2]; /* the number of scanned pages */ - unsigned long nr_rotated[2]; /* the number of rotated pages */ - unsigned long nr_freed[2]; /* the number of freed pages */ - unsigned long elapsed; /* nsec of time elapsed while scanning */ -}; - #ifdef CONFIG_CGROUP_MEM_RES_CTLR /* * All "charge" functions with gfp_mask should use GFP_KERNEL or @@ -127,15 +117,6 @@ mem_cgroup_get_reclaim_stat_from_page(struct page *page); extern void mem_cgroup_print_oom_info(struct mem_cgroup *memcg, struct task_struct *p); -extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem, - gfp_t gfp_mask, bool noswap, - struct memcg_scanrecord *rec); -extern unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, - gfp_t gfp_mask, bool noswap, - struct zone *zone, - struct memcg_scanrecord *rec, - unsigned long *nr_scanned); - #ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP extern int do_swap_account; #endif diff --git a/include/linux/swap.h b/include/linux/swap.h index 14d62490922e..c71f84bb62ec 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -252,6 +252,12 @@ static inline void lru_cache_add_file(struct page *page) extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask, nodemask_t *mask); extern int __isolate_lru_page(struct page *page, int mode, int file); +extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem, + gfp_t gfp_mask, bool noswap); +extern unsigned long mem_cgroup_shrink_node_zone(struct mem_cgroup *mem, + gfp_t gfp_mask, bool noswap, + struct zone *zone, + unsigned long *nr_scanned); extern unsigned long shrink_all_memory(unsigned long nr_pages); extern int vm_swappiness; extern int remove_mapping(struct address_space *mapping, struct page *page); -- cgit v1.2.3 From 4f5b04800a224aadb6cffcbbc3d3fa26e2367c7f Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 14 Sep 2011 16:22:29 -0700 Subject: drivers/gpio/gpio-generic.c: fix build errors Building a kernel with hotplug disabled results in a link failure: `bgpio_remove' referenced in section `___ksymtab_gpl+bgpio_remove' of drivers/built-in.o: defined in discarded section `.devexit.text' of drivers/built-in.o This is because of bgpio_remove() is exported. It is illegal to export symbols which are discarded either at link time or as part of an init/exit section. Fix this by dropping the __devexit attributation from bgpio_remove(). Also drop the __devinit attributation from bgpio_init(). Signed-off-by: Russell King Cc: Grant Likely Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/basic_mmio_gpio.h | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) (limited to 'include') diff --git a/include/linux/basic_mmio_gpio.h b/include/linux/basic_mmio_gpio.h index 98999cf107ce..feb912196745 100644 --- a/include/linux/basic_mmio_gpio.h +++ b/include/linux/basic_mmio_gpio.h @@ -63,15 +63,10 @@ static inline struct bgpio_chip *to_bgpio_chip(struct gpio_chip *gc) return container_of(gc, struct bgpio_chip, gc); } -int __devexit bgpio_remove(struct bgpio_chip *bgc); -int __devinit bgpio_init(struct bgpio_chip *bgc, - struct device *dev, - unsigned long sz, - void __iomem *dat, - void __iomem *set, - void __iomem *clr, - void __iomem *dirout, - void __iomem *dirin, - bool big_endian); +int bgpio_remove(struct bgpio_chip *bgc); +int bgpio_init(struct bgpio_chip *bgc, struct device *dev, + unsigned long sz, void __iomem *dat, void __iomem *set, + void __iomem *clr, void __iomem *dirout, void __iomem *dirin, + bool big_endian); #endif /* __BASIC_MMIO_GPIO_H */ -- cgit v1.2.3