diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-10-24 12:48:46 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-24 12:48:46 +0200 |
| commit | 8c82a17e9c924c0e9f13e75e4c2f6bca19a4b516 (patch) | |
| tree | d535f46a917e14e90deccb29ad00aac016ad18dd /include/linux | |
| parent | 4ce72a2c063a7fa8e42a9435440ae3364115a58d (diff) | |
| parent | 57f8f7b60db6f1ed2c6918ab9230c4623a9dbe37 (diff) | |
| download | linux-stable-8c82a17e9c924c0e9f13e75e4c2f6bca19a4b516.tar.gz linux-stable-8c82a17e9c924c0e9f13e75e4c2f6bca19a4b516.tar.bz2 linux-stable-8c82a17e9c924c0e9f13e75e4c2f6bca19a4b516.zip | |
Merge commit 'v2.6.28-rc1' into sched/urgent
Diffstat (limited to 'include/linux')
140 files changed, 6380 insertions, 549 deletions
diff --git a/include/linux/Kbuild b/include/linux/Kbuild index bf9aca548f14..e531783e5d78 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -183,6 +183,7 @@ unifdef-y += auto_fs.h unifdef-y += auxvec.h unifdef-y += binfmts.h unifdef-y += blktrace_api.h +unifdef-y += byteorder.h unifdef-y += capability.h unifdef-y += capi.h unifdef-y += cciss_ioctl.h @@ -340,6 +341,7 @@ unifdef-y += soundcard.h unifdef-y += stat.h unifdef-y += stddef.h unifdef-y += string.h +unifdef-y += swab.h unifdef-y += synclink.h unifdef-y += sysctl.h unifdef-y += tcp.h diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 702f79dad16a..fd6a452b0ceb 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -94,18 +94,10 @@ int acpi_parse_mcfg (struct acpi_table_header *header); void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); /* the following four functions are architecture-dependent */ -#ifdef CONFIG_HAVE_ARCH_PARSE_SRAT -#define NR_NODE_MEMBLKS MAX_NUMNODES -#define acpi_numa_slit_init(slit) do {} while (0) -#define acpi_numa_processor_affinity_init(pa) do {} while (0) -#define acpi_numa_memory_affinity_init(ma) do {} while (0) -#define acpi_numa_arch_fixup() do {} while (0) -#else void acpi_numa_slit_init (struct acpi_table_slit *slit); void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); void acpi_numa_arch_fixup(void); -#endif #ifdef CONFIG_ACPI_HOTPLUG_CPU /* Arch dependent functions for cpu hotplug support */ diff --git a/include/linux/aer.h b/include/linux/aer.h index f2518141de88..f7df1eefc107 100644 --- a/include/linux/aer.h +++ b/include/linux/aer.h @@ -10,7 +10,6 @@ #if defined(CONFIG_PCIEAER) /* pci-e port driver needs this function to enable aer */ extern int pci_enable_pcie_error_reporting(struct pci_dev *dev); -extern int pci_find_aer_capability(struct pci_dev *dev); extern int pci_disable_pcie_error_reporting(struct pci_dev *dev); extern int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); #else @@ -18,10 +17,6 @@ static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev) { return -EINVAL; } -static inline int pci_find_aer_capability(struct pci_dev *dev) -{ - return 0; -} static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev) { return -EINVAL; diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 0a24d5550eb3..bee52abb8a4d 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -175,6 +175,8 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio); * BDI_CAP_READ_MAP: Can be mapped for reading * BDI_CAP_WRITE_MAP: Can be mapped for writing * BDI_CAP_EXEC_MAP: Can be mapped for execution + * + * BDI_CAP_SWAP_BACKED: Count shmem/tmpfs objects as swap-backed. */ #define BDI_CAP_NO_ACCT_DIRTY 0x00000001 #define BDI_CAP_NO_WRITEBACK 0x00000002 @@ -184,6 +186,7 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned int max_ratio); #define BDI_CAP_WRITE_MAP 0x00000020 #define BDI_CAP_EXEC_MAP 0x00000040 #define BDI_CAP_NO_ACCT_WB 0x00000080 +#define BDI_CAP_SWAP_BACKED 0x00000100 #define BDI_CAP_VMFLAGS \ (BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP) @@ -248,6 +251,11 @@ static inline bool bdi_cap_account_writeback(struct backing_dev_info *bdi) BDI_CAP_NO_WRITEBACK)); } +static inline bool bdi_cap_swap_backed(struct backing_dev_info *bdi) +{ + return bdi->capabilities & BDI_CAP_SWAP_BACKED; +} + static inline bool mapping_cap_writeback_dirty(struct address_space *mapping) { return bdi_cap_writeback_dirty(mapping->backing_dev_info); @@ -258,4 +266,9 @@ static inline bool mapping_cap_account_dirty(struct address_space *mapping) return bdi_cap_account_dirty(mapping->backing_dev_info); } +static inline bool mapping_cap_swap_backed(struct address_space *mapping) +{ + return bdi_cap_swap_backed(mapping->backing_dev_info); +} + #endif /* _LINUX_BACKING_DEV_H */ diff --git a/include/linux/bcd.h b/include/linux/bcd.h index 7ac518e3c152..22ea563ba3eb 100644 --- a/include/linux/bcd.h +++ b/include/linux/bcd.h @@ -1,12 +1,3 @@ -/* Permission is hereby granted to copy, modify and redistribute this code - * in terms of the GNU Library General Public License, Version 2 or later, - * at your option. - */ - -/* macros to translate to/from binary and binary-coded decimal (frequently - * found in RTC chips). - */ - #ifndef _BCD_H #define _BCD_H @@ -15,11 +6,4 @@ unsigned bcd2bin(unsigned char val) __attribute_const__; unsigned char bin2bcd(unsigned val) __attribute_const__; -#define BCD2BIN(val) bcd2bin(val) -#define BIN2BCD(val) bin2bcd(val) - -/* backwards compat */ -#define BCD_TO_BIN(val) ((val)=BCD2BIN(val)) -#define BIN_TO_BCD(val) ((val)=BIN2BCD(val)) - #endif /* _BCD_H */ diff --git a/include/linux/bio.h b/include/linux/bio.h index ff5b4cf9e2da..1c91a176b9ae 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -79,6 +79,13 @@ struct bio { unsigned int bi_size; /* residual I/O count */ + /* + * To keep track of the max segment size, we account for the + * sizes of the first and last mergeable segments in this bio. + */ + unsigned int bi_seg_front_size; + unsigned int bi_seg_back_size; + unsigned int bi_max_vecs; /* max bvl_vecs we can hold */ unsigned int bi_comp_cpu; /* completion CPU */ @@ -129,25 +136,30 @@ struct bio { * bit 2 -- barrier * Insert a serialization point in the IO queue, forcing previously * submitted IO to be completed before this oen is issued. - * bit 3 -- fail fast, don't want low level driver retries - * bit 4 -- synchronous I/O hint: the block layer will unplug immediately + * bit 3 -- synchronous I/O hint: the block layer will unplug immediately * Note that this does NOT indicate that the IO itself is sync, just * that the block layer will not postpone issue of this IO by plugging. - * bit 5 -- metadata request + * bit 4 -- metadata request * Used for tracing to differentiate metadata and data IO. May also * get some preferential treatment in the IO scheduler - * bit 6 -- discard sectors + * bit 5 -- discard sectors * Informs the lower level device that this range of sectors is no longer * used by the file system and may thus be freed by the device. Used * for flash based storage. + * bit 6 -- fail fast device errors + * bit 7 -- fail fast transport errors + * bit 8 -- fail fast driver errors + * Don't want driver retries for any fast fail whatever the reason. */ #define BIO_RW 0 /* Must match RW in req flags (blkdev.h) */ #define BIO_RW_AHEAD 1 /* Must match FAILFAST in req flags */ #define BIO_RW_BARRIER 2 -#define BIO_RW_FAILFAST 3 -#define BIO_RW_SYNC 4 -#define BIO_RW_META 5 -#define BIO_RW_DISCARD 6 +#define BIO_RW_SYNC 3 +#define BIO_RW_META 4 +#define BIO_RW_DISCARD 5 +#define BIO_RW_FAILFAST_DEV 6 +#define BIO_RW_FAILFAST_TRANSPORT 7 +#define BIO_RW_FAILFAST_DRIVER 8 /* * upper 16 bits of bi_rw define the io priority of this bio @@ -174,7 +186,10 @@ struct bio { #define bio_sectors(bio) ((bio)->bi_size >> 9) #define bio_barrier(bio) ((bio)->bi_rw & (1 << BIO_RW_BARRIER)) #define bio_sync(bio) ((bio)->bi_rw & (1 << BIO_RW_SYNC)) -#define bio_failfast(bio) ((bio)->bi_rw & (1 << BIO_RW_FAILFAST)) +#define bio_failfast_dev(bio) ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_DEV)) +#define bio_failfast_transport(bio) \ + ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_TRANSPORT)) +#define bio_failfast_driver(bio) ((bio)->bi_rw & (1 << BIO_RW_FAILFAST_DRIVER)) #define bio_rw_ahead(bio) ((bio)->bi_rw & (1 << BIO_RW_AHEAD)) #define bio_rw_meta(bio) ((bio)->bi_rw & (1 << BIO_RW_META)) #define bio_discard(bio) ((bio)->bi_rw & (1 << BIO_RW_DISCARD)) diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 89781fd48859..a08c33a26ca9 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -110,7 +110,6 @@ extern int __bitmap_weight(const unsigned long *bitmap, int bits); extern int bitmap_scnprintf(char *buf, unsigned int len, const unsigned long *src, int nbits); -extern int bitmap_scnprintf_len(unsigned int nr_bits); extern int __bitmap_parse(const char *buf, unsigned int buflen, int is_user, unsigned long *dst, int nbits); extern int bitmap_parse_user(const char __user *ubuf, unsigned int ulen, @@ -130,6 +129,7 @@ extern void bitmap_fold(unsigned long *dst, const unsigned long *orig, 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); #define BITMAP_LAST_WORD_MASK(nbits) \ ( \ diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index a92d9e4ea96e..a135256b272c 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -87,7 +87,9 @@ enum { */ enum rq_flag_bits { __REQ_RW, /* not set, read. set, write */ - __REQ_FAILFAST, /* no low level driver retries */ + __REQ_FAILFAST_DEV, /* no driver retries of device errors */ + __REQ_FAILFAST_TRANSPORT, /* no driver retries of transport errors */ + __REQ_FAILFAST_DRIVER, /* no driver retries of driver errors */ __REQ_DISCARD, /* request to discard sectors */ __REQ_SORTED, /* elevator knows about this request */ __REQ_SOFTBARRIER, /* may not be passed by ioscheduler */ @@ -111,8 +113,10 @@ enum rq_flag_bits { }; #define REQ_RW (1 << __REQ_RW) +#define REQ_FAILFAST_DEV (1 << __REQ_FAILFAST_DEV) +#define REQ_FAILFAST_TRANSPORT (1 << __REQ_FAILFAST_TRANSPORT) +#define REQ_FAILFAST_DRIVER (1 << __REQ_FAILFAST_DRIVER) #define REQ_DISCARD (1 << __REQ_DISCARD) -#define REQ_FAILFAST (1 << __REQ_FAILFAST) #define REQ_SORTED (1 << __REQ_SORTED) #define REQ_SOFTBARRIER (1 << __REQ_SOFTBARRIER) #define REQ_HARDBARRIER (1 << __REQ_HARDBARRIER) @@ -560,7 +564,12 @@ enum { #define blk_special_request(rq) ((rq)->cmd_type == REQ_TYPE_SPECIAL) #define blk_sense_request(rq) ((rq)->cmd_type == REQ_TYPE_SENSE) -#define blk_noretry_request(rq) ((rq)->cmd_flags & REQ_FAILFAST) +#define blk_failfast_dev(rq) ((rq)->cmd_flags & REQ_FAILFAST_DEV) +#define blk_failfast_transport(rq) ((rq)->cmd_flags & REQ_FAILFAST_TRANSPORT) +#define blk_failfast_driver(rq) ((rq)->cmd_flags & REQ_FAILFAST_DRIVER) +#define blk_noretry_request(rq) (blk_failfast_dev(rq) || \ + blk_failfast_transport(rq) || \ + blk_failfast_driver(rq)) #define blk_rq_started(rq) ((rq)->cmd_flags & REQ_STARTED) #define blk_account_rq(rq) (blk_rq_started(rq) && (blk_fs_request(rq) || blk_discard_rq(rq))) @@ -708,10 +717,10 @@ extern void blk_plug_device(struct request_queue *); extern void blk_plug_device_unlocked(struct request_queue *); extern int blk_remove_plug(struct request_queue *); extern void blk_recount_segments(struct request_queue *, struct bio *); -extern int scsi_cmd_ioctl(struct file *, struct request_queue *, - struct gendisk *, unsigned int, void __user *); -extern int sg_scsi_ioctl(struct file *, struct request_queue *, - struct gendisk *, struct scsi_ioctl_command __user *); +extern int scsi_cmd_ioctl(struct request_queue *, struct gendisk *, fmode_t, + unsigned int, void __user *); +extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t, + struct scsi_ioctl_command __user *); /* * Temporary export, until SCSI gets fixed up. @@ -856,7 +865,6 @@ extern void blk_ordered_complete_seq(struct request_queue *, unsigned, int); extern int blk_rq_map_sg(struct request_queue *, struct request *, struct scatterlist *); extern void blk_dump_rq_flags(struct request *, char *); extern void generic_unplug_device(struct request_queue *); -extern void __generic_unplug_device(struct request_queue *); extern long nr_blockdev_pages(void); int blk_get_queue(struct request_queue *); @@ -902,7 +910,8 @@ static inline int sb_issue_discard(struct super_block *sb, * command filter functions */ extern int blk_verify_command(struct blk_cmd_filter *filter, - unsigned char *cmd, int has_write_perm); + unsigned char *cmd, fmode_t has_write_perm); +extern void blk_unregister_filter(struct gendisk *disk); extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter); #define MAX_PHYS_SEGMENTS 128 @@ -1048,6 +1057,22 @@ static inline int blk_integrity_rq(struct request *rq) #endif /* CONFIG_BLK_DEV_INTEGRITY */ +struct block_device_operations { + int (*open) (struct block_device *, fmode_t); + int (*release) (struct gendisk *, fmode_t); + int (*locked_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long); + int (*ioctl) (struct block_device *, fmode_t, unsigned, unsigned long); + int (*compat_ioctl) (struct block_device *, fmode_t, unsigned, unsigned long); + int (*direct_access) (struct block_device *, sector_t, + void **, unsigned long *); + int (*media_changed) (struct gendisk *); + int (*revalidate_disk) (struct gendisk *); + int (*getgeo)(struct block_device *, struct hd_geometry *); + struct module *owner; +}; + +extern int __blkdev_driver_ioctl(struct block_device *, fmode_t, unsigned int, + unsigned long); #else /* CONFIG_BLOCK */ /* * stubs for when the block layer is configured out diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h index 3a31eb506164..bdf505d33e77 100644 --- a/include/linux/blktrace_api.h +++ b/include/linux/blktrace_api.h @@ -24,6 +24,7 @@ enum blktrace_cat { BLK_TC_AHEAD = 1 << 11, /* readahead */ 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_END = 1 << 15, /* only 16-bits, reminder */ }; @@ -51,6 +52,7 @@ enum blktrace_act { __BLK_TA_BOUNCE, /* bio was bounced */ __BLK_TA_REMAP, /* bio was remapped */ __BLK_TA_ABORT, /* request aborted */ + __BLK_TA_DRV_DATA, /* driver-specific binary data */ }; /* @@ -82,6 +84,7 @@ enum blktrace_notify { #define BLK_TA_BOUNCE (__BLK_TA_BOUNCE) #define BLK_TA_REMAP (__BLK_TA_REMAP | BLK_TC_ACT(BLK_TC_QUEUE)) #define BLK_TA_ABORT (__BLK_TA_ABORT | BLK_TC_ACT(BLK_TC_QUEUE)) +#define BLK_TA_DRV_DATA (__BLK_TA_DRV_DATA | BLK_TC_ACT(BLK_TC_DRV_DATA)) #define BLK_TN_PROCESS (__BLK_TN_PROCESS | BLK_TC_ACT(BLK_TC_NOTIFY)) #define BLK_TN_TIMESTAMP (__BLK_TN_TIMESTAMP | BLK_TC_ACT(BLK_TC_NOTIFY)) @@ -317,6 +320,34 @@ static inline void blk_add_trace_remap(struct request_queue *q, struct bio *bio, __blk_add_trace(bt, from, bio->bi_size, bio->bi_rw, BLK_TA_REMAP, !bio_flagged(bio, BIO_UPTODATE), sizeof(r), &r); } +/** + * blk_add_driver_data - Add binary message with driver-specific data + * @q: queue the io is for + * @rq: io request + * @data: driver-specific data + * @len: length of driver-specific data + * + * Description: + * Some drivers might want to write driver-specific data per request. + * + **/ +static inline void blk_add_driver_data(struct request_queue *q, + struct request *rq, + void *data, size_t len) +{ + struct blk_trace *bt = q->blk_trace; + + if (likely(!bt)) + return; + + if (blk_pc_request(rq)) + __blk_add_trace(bt, 0, rq->data_len, 0, BLK_TA_DRV_DATA, + rq->errors, len, data); + else + __blk_add_trace(bt, rq->hard_sector, rq->hard_nr_sectors << 9, + 0, BLK_TA_DRV_DATA, rq->errors, len, data); +} + extern int blk_trace_setup(struct request_queue *q, char *name, dev_t dev, char __user *arg); extern int blk_trace_startstop(struct request_queue *q, int start); @@ -330,6 +361,7 @@ extern int blk_trace_remove(struct request_queue *q); #define blk_add_trace_generic(q, rq, rw, what) do { } while (0) #define blk_add_trace_pdu_int(q, what, bio, pdu) do { } while (0) #define blk_add_trace_remap(q, bio, dev, f, t) do {} while (0) +#define blk_add_driver_data(q, rq, data, len) do {} while (0) #define do_blk_trace_setup(q, name, dev, buts) (-ENOTTY) #define blk_trace_setup(q, name, dev, arg) (-ENOTTY) #define blk_trace_startstop(q, start) (-ENOTTY) diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index eadaab44015f..3ce64b90118c 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -322,7 +322,7 @@ static inline void wait_on_buffer(struct buffer_head *bh) static inline int trylock_buffer(struct buffer_head *bh) { - return likely(!test_and_set_bit(BH_Lock, &bh->b_state)); + return likely(!test_and_set_bit_lock(BH_Lock, &bh->b_state)); } static inline void lock_buffer(struct buffer_head *bh) diff --git a/include/linux/byteorder/Kbuild b/include/linux/byteorder/Kbuild index 1133d5f9d818..fbaa7f9cee32 100644 --- a/include/linux/byteorder/Kbuild +++ b/include/linux/byteorder/Kbuild @@ -1,3 +1,4 @@ unifdef-y += big_endian.h unifdef-y += little_endian.h unifdef-y += swab.h +unifdef-y += swabb.h diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h index 44f95b92393b..1cba3f3efe5f 100644 --- a/include/linux/byteorder/big_endian.h +++ b/include/linux/byteorder/big_endian.h @@ -10,6 +10,7 @@ #include <linux/types.h> #include <linux/byteorder/swab.h> +#include <linux/byteorder/swabb.h> #define __constant_htonl(x) ((__force __be32)(__u32)(x)) #define __constant_ntohl(x) ((__force __u32)(__be32)(x)) diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h index 4cc170a31762..cedc1b5a289c 100644 --- a/include/linux/byteorder/little_endian.h +++ b/include/linux/byteorder/little_endian.h @@ -10,6 +10,7 @@ #include <linux/types.h> #include <linux/byteorder/swab.h> +#include <linux/byteorder/swabb.h> #define __constant_htonl(x) ((__force __be32)___constant_swab32((x))) #define __constant_ntohl(x) ___constant_swab32((__force __be32)(x)) diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h index 5db265ea60f6..0b49e08d3cb0 100644 --- a/include/linux/cdrom.h +++ b/include/linux/cdrom.h @@ -987,11 +987,11 @@ struct cdrom_device_ops { }; /* the general block_device operations structure: */ -extern int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, - struct file *fp); -extern int cdrom_release(struct cdrom_device_info *cdi, struct file *fp); -extern int cdrom_ioctl(struct file *file, struct cdrom_device_info *cdi, - struct inode *ip, unsigned int cmd, unsigned long arg); +extern int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, + fmode_t mode); +extern void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode); +extern int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev, + fmode_t mode, unsigned int cmd, unsigned long arg); extern int cdrom_media_changed(struct cdrom_device_info *); extern int register_cdrom(struct cdrom_device_info *cdi); diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index 30934e4bfaab..8b00f6643e93 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -9,12 +9,12 @@ */ #include <linux/sched.h> -#include <linux/kref.h> #include <linux/cpumask.h> #include <linux/nodemask.h> #include <linux/rcupdate.h> #include <linux/cgroupstats.h> #include <linux/prio_heap.h> +#include <linux/rwsem.h> #ifdef CONFIG_CGROUPS @@ -137,6 +137,15 @@ struct cgroup { * release_list_lock */ struct list_head release_list; + + /* pids_mutex protects the fields below */ + struct rw_semaphore pids_mutex; + /* Array of process ids in the cgroup */ + pid_t *tasks_pids; + /* How many files are using the current tasks_pids array */ + int pids_use_count; + /* Length of the current tasks_pids array */ + int pids_length; }; /* A css_set is a structure holding pointers to a set of @@ -149,7 +158,7 @@ struct cgroup { struct css_set { /* Reference count */ - struct kref ref; + atomic_t refcount; /* * List running through all cgroup groups in the same hash @@ -394,6 +403,9 @@ void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it); int cgroup_scan_tasks(struct cgroup_scanner *scan); int cgroup_attach_task(struct cgroup *, struct task_struct *); +void cgroup_mm_owner_callbacks(struct task_struct *old, + struct task_struct *new); + #else /* !CONFIG_CGROUPS */ static inline int cgroup_init_early(void) { return 0; } @@ -412,15 +424,9 @@ static inline int cgroupstats_build(struct cgroupstats *stats, return -EINVAL; } +static inline void cgroup_mm_owner_callbacks(struct task_struct *old, + struct task_struct *new) {} + #endif /* !CONFIG_CGROUPS */ -#ifdef CONFIG_MM_OWNER -extern void -cgroup_mm_owner_callbacks(struct task_struct *old, struct task_struct *new); -#else /* !CONFIG_MM_OWNER */ -static inline void -cgroup_mm_owner_callbacks(struct task_struct *old, struct task_struct *new) -{ -} -#endif /* CONFIG_MM_OWNER */ #endif /* _LINUX_CGROUP_H */ diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h index e2877454ec82..9c22396e8b50 100644 --- a/include/linux/cgroup_subsys.h +++ b/include/linux/cgroup_subsys.h @@ -48,3 +48,9 @@ SUBSYS(devices) #endif /* */ + +#ifdef CONFIG_CGROUP_FREEZER +SUBSYS(freezer) +#endif + +/* */ diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 55e434feec99..f88d32f8ff7c 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -45,7 +45,8 @@ struct clocksource; * @read: returns a cycle value * @mask: bitmask for two's complement * subtraction of non 64 bit counters - * @mult: cycle to nanosecond multiplier + * @mult: cycle to nanosecond multiplier (adjusted by NTP) + * @mult_orig: cycle to nanosecond multiplier (unadjusted by NTP) * @shift: cycle to nanosecond divisor (power of two) * @flags: flags describing special properties * @vread: vsyscall based read @@ -63,6 +64,7 @@ struct clocksource { cycle_t (*read)(void); cycle_t mask; u32 mult; + u32 mult_orig; u32 shift; unsigned long flags; cycle_t (*vread)(void); @@ -77,6 +79,7 @@ struct clocksource { /* timekeeping specific data, ignore */ cycle_t cycle_interval; u64 xtime_interval; + u32 raw_interval; /* * Second part is written at each timer interrupt * Keep it in a different cache line to dirty no @@ -85,6 +88,7 @@ struct clocksource { cycle_t cycle_last ____cacheline_aligned_in_smp; u64 xtime_nsec; s64 error; + struct timespec raw_time; #ifdef CONFIG_CLOCKSOURCE_WATCHDOG /* Watchdog related data, used by the framework */ @@ -201,17 +205,19 @@ static inline void clocksource_calculate_interval(struct clocksource *c, { u64 tmp; - /* XXX - All of this could use a whole lot of optimization */ + /* Do the ns -> cycle conversion first, using original mult */ tmp = length_nsec; tmp <<= c->shift; - tmp += c->mult/2; - do_div(tmp, c->mult); + tmp += c->mult_orig/2; + do_div(tmp, c->mult_orig); c->cycle_interval = (cycle_t)tmp; if (c->cycle_interval == 0) c->cycle_interval = 1; + /* Go back from cycles -> shifted ns, this time use ntp adjused mult */ c->xtime_interval = (u64)c->cycle_interval * c->mult; + c->raw_interval = ((u64)c->cycle_interval * c->mult_orig) >> c->shift; } diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 8322141ee480..98115d9d04da 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -44,6 +44,8 @@ extern void __chk_io_ptr(const volatile void __iomem *); # error Sorry, your compiler is too old/not recognized. #endif +#define notrace __attribute__((no_instrument_function)) + /* Intel compiler defines __GNUC__. So we will overwrite implementations * coming from above header files here */ diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h index 025e4f575103..2dac064d8359 100644 --- a/include/linux/crash_dump.h +++ b/include/linux/crash_dump.h @@ -8,17 +8,12 @@ #include <linux/proc_fs.h> #define ELFCORE_ADDR_MAX (-1ULL) +#define ELFCORE_ADDR_ERR (-2ULL) -#ifdef CONFIG_PROC_VMCORE extern unsigned long long elfcorehdr_addr; -#else -static const unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; -#endif extern ssize_t copy_oldmem_page(unsigned long, char *, size_t, unsigned long, int); -extern const struct file_operations proc_vmcore_operations; -extern struct proc_dir_entry *proc_vmcore; /* Architecture code defines this if there are other possible ELF * machine types, e.g. on bi-arch capable hardware. */ @@ -28,10 +23,43 @@ extern struct proc_dir_entry *proc_vmcore; #define vmcore_elf_check_arch(x) (elf_check_arch(x) || vmcore_elf_check_arch_cross(x)) +/* + * is_kdump_kernel() checks whether this kernel is booting after a panic of + * previous kernel or not. This is determined by checking if previous kernel + * has passed the elf core header address on command line. + * + * This is not just a test if CONFIG_CRASH_DUMP is enabled or not. It will + * return 1 if CONFIG_CRASH_DUMP=y and if kernel is booting after a panic of + * previous kernel. + */ + static inline int is_kdump_kernel(void) { return (elfcorehdr_addr != ELFCORE_ADDR_MAX) ? 1 : 0; } + +/* is_vmcore_usable() checks if the kernel is booting after a panic and + * the vmcore region is usable. + * + * This makes use of the fact that due to alignment -2ULL is not + * a valid pointer, much in the vain of IS_ERR(), except + * dealing directly with an unsigned long long rather than a pointer. + */ + +static inline int is_vmcore_usable(void) +{ + return is_kdump_kernel() && elfcorehdr_addr != ELFCORE_ADDR_ERR ? 1 : 0; +} + +/* vmcore_unusable() marks the vmcore as unusable, + * without disturbing the logic of is_kdump_kernel() + */ + +static inline void vmcore_unusable(void) +{ + if (is_kdump_kernel()) + elfcorehdr_addr = ELFCORE_ADDR_ERR; +} #else /* !CONFIG_CRASH_DUMP */ static inline int is_kdump_kernel(void) { return 0; } #endif /* CONFIG_CRASH_DUMP */ diff --git a/include/linux/dcache.h b/include/linux/dcache.h index efba1de629ac..a37359d0bad1 100644 --- a/include/linux/dcache.h +++ b/include/linux/dcache.h @@ -228,9 +228,9 @@ extern void d_delete(struct dentry *); /* allocate/de-allocate */ extern struct dentry * d_alloc(struct dentry *, const struct qstr *); -extern struct dentry * d_alloc_anon(struct inode *); extern struct dentry * d_splice_alias(struct inode *, struct dentry *); extern struct dentry * d_add_ci(struct dentry *, struct inode *, struct qstr *); +extern struct dentry * d_obtain_alias(struct inode *); extern void shrink_dcache_sb(struct super_block *); extern void shrink_dcache_parent(struct dentry *); extern void shrink_dcache_for_umount(struct super_block *); @@ -287,6 +287,7 @@ static inline struct dentry *d_add_unique(struct dentry *entry, struct inode *in /* used for rename() and baskets */ extern void d_move(struct dentry *, struct dentry *); +extern struct dentry *d_ancestor(struct dentry *, struct dentry *); /* appendix may either be NULL or be used for transname suffixes */ extern struct dentry * d_lookup(struct dentry *, struct qstr *); diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h index 08d783592b73..c17fd334e574 100644 --- a/include/linux/device-mapper.h +++ b/include/linux/device-mapper.h @@ -69,8 +69,7 @@ typedef int (*dm_status_fn) (struct dm_target *ti, status_type_t status_type, typedef int (*dm_message_fn) (struct dm_target *ti, unsigned argc, char **argv); -typedef int (*dm_ioctl_fn) (struct dm_target *ti, struct inode *inode, - struct file *filp, unsigned int cmd, +typedef int (*dm_ioctl_fn) (struct dm_target *ti, unsigned int cmd, unsigned long arg); typedef int (*dm_merge_fn) (struct dm_target *ti, struct bvec_merge_data *bvm, @@ -85,7 +84,7 @@ void dm_set_device_limits(struct dm_target *ti, struct block_device *bdev); struct dm_dev { struct block_device *bdev; - int mode; + fmode_t mode; char name[16]; }; @@ -95,7 +94,7 @@ struct dm_dev { * FIXME: too many arguments. */ int dm_get_device(struct dm_target *ti, const char *path, sector_t start, - sector_t len, int mode, struct dm_dev **result); + sector_t len, fmode_t mode, struct dm_dev **result); void dm_put_device(struct dm_target *ti, struct dm_dev *d); /* @@ -223,7 +222,7 @@ int dm_set_geometry(struct mapped_device *md, struct hd_geometry *geo); /* * First create an empty table. */ -int dm_table_create(struct dm_table **result, int mode, +int dm_table_create(struct dm_table **result, fmode_t mode, unsigned num_targets, struct mapped_device *md); /* @@ -254,7 +253,7 @@ void dm_table_put(struct dm_table *t); */ sector_t dm_table_get_size(struct dm_table *t); unsigned int dm_table_get_num_targets(struct dm_table *t); -int dm_table_get_mode(struct dm_table *t); +fmode_t dm_table_get_mode(struct dm_table *t); struct mapped_device *dm_table_get_md(struct dm_table *t); /* @@ -354,6 +353,9 @@ void *dm_vcalloc(unsigned long nmemb, unsigned long elem_size); */ #define dm_round_up(n, sz) (dm_div_up((n), (sz)) * (sz)) +#define dm_array_too_big(fixed, obj, num) \ + ((num) > (UINT_MAX - (fixed)) / (obj)) + static inline sector_t to_sector(unsigned long n) { return (n >> SECTOR_SHIFT); diff --git a/include/linux/device.h b/include/linux/device.h index 987f5912720a..1a3686d15f98 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -450,7 +450,7 @@ static inline void set_dev_node(struct device *dev, int node) } #endif -static inline void *dev_get_drvdata(struct device *dev) +static inline void *dev_get_drvdata(const struct device *dev) { return dev->driver_data; } diff --git a/include/linux/dm-region-hash.h b/include/linux/dm-region-hash.h new file mode 100644 index 000000000000..a9e652a41373 --- /dev/null +++ b/include/linux/dm-region-hash.h @@ -0,0 +1,104 @@ +/* + * Copyright (C) 2003 Sistina Software Limited. + * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. + * + * Device-Mapper dirty region hash interface. + * + * This file is released under the GPL. + */ + +#ifndef DM_REGION_HASH_H +#define DM_REGION_HASH_H + +#include <linux/dm-dirty-log.h> + +/*----------------------------------------------------------------- + * Region hash + *----------------------------------------------------------------*/ +struct dm_region_hash; +struct dm_region; + +/* + * States a region can have. + */ +enum dm_rh_region_states { + DM_RH_CLEAN = 0x01, /* No writes in flight. */ + DM_RH_DIRTY = 0x02, /* Writes in flight. */ + DM_RH_NOSYNC = 0x04, /* Out of sync. */ + DM_RH_RECOVERING = 0x08, /* Under resynchronization. */ +}; + +/* + * Region hash create/destroy. + */ +struct bio_list; +struct dm_region_hash *dm_region_hash_create( + void *context, void (*dispatch_bios)(void *context, + struct bio_list *bios), + void (*wakeup_workers)(void *context), + void (*wakeup_all_recovery_waiters)(void *context), + sector_t target_begin, unsigned max_recovery, + struct dm_dirty_log *log, uint32_t region_size, + region_t nr_regions); +void dm_region_hash_destroy(struct dm_region_hash *rh); + +struct dm_dirty_log *dm_rh_dirty_log(struct dm_region_hash *rh); + +/* + * Conversion functions. + */ +region_t dm_rh_bio_to_region(struct dm_region_hash *rh, struct bio *bio); +sector_t dm_rh_region_to_sector(struct dm_region_hash *rh, region_t region); +void *dm_rh_region_context(struct dm_region *reg); + +/* + * Get region size and key (ie. number of the region). + */ +sector_t dm_rh_get_region_size(struct dm_region_hash *rh); +region_t dm_rh_get_region_key(struct dm_region *reg); + +/* + * Get/set/update region state (and dirty log). + * + */ +int dm_rh_get_state(struct dm_region_hash *rh, region_t region, int may_block); +void dm_rh_set_state(struct dm_region_hash *rh, region_t region, + enum dm_rh_region_states state, int may_block); + +/* Non-zero errors_handled leaves the state of the region NOSYNC */ +void dm_rh_update_states(struct dm_region_hash *rh, int errors_handled); + +/* Flush the region hash and dirty log. */ +int dm_rh_flush(struct dm_region_hash *rh); + +/* Inc/dec pending count on regions. */ +void dm_rh_inc_pending(struct dm_region_hash *rh, struct bio_list *bios); +void dm_rh_dec(struct dm_region_hash *rh, region_t region); + +/* Delay bios on regions. */ +void dm_rh_delay(struct dm_region_hash *rh, struct bio *bio); + +void dm_rh_mark_nosync(struct dm_region_hash *rh, + struct bio *bio, unsigned done, int error); + +/* + * Region recovery control. + */ + +/* Prepare some regions for recovery by starting to quiesce them. */ +void dm_rh_recovery_prepare(struct dm_region_hash *rh); + +/* Try fetching a quiesced region for recovery. */ +struct dm_region *dm_rh_recovery_start(struct dm_region_hash *rh); + +/* Report recovery end on a region. */ +void dm_rh_recovery_end(struct dm_region *reg, int error); + +/* Returns number of regions with recovery work outstanding. */ +int dm_rh_recovery_in_flight(struct dm_region_hash *rh); + +/* Start/stop recovery. */ +void dm_rh_start_recovery(struct dm_region_hash *rh); +void dm_rh_stop_recovery(struct dm_region_hash *rh); + +#endif /* DM_REGION_HASH_H */ diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h index bff5c65f81dc..952df39c989d 100644 --- a/include/linux/dma_remapping.h +++ b/include/linux/dma_remapping.h @@ -2,15 +2,14 @@ #define _DMA_REMAPPING_H /* - * We need a fixed PAGE_SIZE of 4K irrespective of - * arch PAGE_SIZE for IOMMU page tables. + * VT-d hardware uses 4KiB page size regardless of host page size. */ -#define PAGE_SHIFT_4K (12) -#define PAGE_SIZE_4K (1UL << PAGE_SHIFT_4K) -#define PAGE_MASK_4K (((u64)-1) << PAGE_SHIFT_4K) -#define PAGE_ALIGN_4K(addr) (((addr) + PAGE_SIZE_4K - 1) & PAGE_MASK_4K) +#define VTD_PAGE_SHIFT (12) +#define VTD_PAGE_SIZE (1UL << VTD_PAGE_SHIFT) +#define VTD_PAGE_MASK (((u64)-1) << VTD_PAGE_SHIFT) +#define VTD_PAGE_ALIGN(addr) (((addr) + VTD_PAGE_SIZE - 1) & VTD_PAGE_MASK) -#define IOVA_PFN(addr) ((addr) >> PAGE_SHIFT_4K) +#define IOVA_PFN(addr) ((addr) >> PAGE_SHIFT) #define DMA_32BIT_PFN IOVA_PFN(DMA_32BIT_MASK) #define DMA_64BIT_PFN IOVA_PFN(DMA_64BIT_MASK) @@ -25,7 +24,7 @@ struct root_entry { u64 val; u64 rsvd1; }; -#define ROOT_ENTRY_NR (PAGE_SIZE_4K/sizeof(struct root_entry)) +#define ROOT_ENTRY_NR (VTD_PAGE_SIZE/sizeof(struct root_entry)) static inline bool root_present(struct root_entry *root) { return (root->val & 1); @@ -36,7 +35,7 @@ static inline void set_root_present(struct root_entry *root) } static inline void set_root_value(struct root_entry *root, unsigned long value) { - root->val |= value & PAGE_MASK_4K; + root->val |= value & VTD_PAGE_MASK; } struct context_entry; @@ -45,7 +44,7 @@ get_context_addr_from_root(struct root_entry *root) { return (struct context_entry *) (root_present(root)?phys_to_virt( - root->val & PAGE_MASK_4K): + root->val & VTD_PAGE_MASK) : NULL); } @@ -67,7 +66,7 @@ struct context_entry { #define context_present(c) ((c).lo & 1) #define context_fault_disable(c) (((c).lo >> 1) & 1) #define context_translation_type(c) (((c).lo >> 2) & 3) -#define context_address_root(c) ((c).lo & PAGE_MASK_4K) +#define context_address_root(c) ((c).lo & VTD_PAGE_MASK) #define context_address_width(c) ((c).hi & 7) #define context_domain_id(c) (((c).hi >> 8) & ((1 << 16) - 1)) @@ -81,7 +80,7 @@ struct context_entry { } while (0) #define CONTEXT_TT_MULTI_LEVEL 0 #define context_set_address_root(c, val) \ - do {(c).lo |= (val) & PAGE_MASK_4K;} while (0) + do {(c).lo |= (val) & VTD_PAGE_MASK; } while (0) #define context_set_address_width(c, val) do {(c).hi |= (val) & 7;} while (0) #define context_set_domain_id(c, val) \ do {(c).hi |= ((val) & ((1 << 16) - 1)) << 8;} while (0) @@ -107,9 +106,9 @@ struct dma_pte { #define dma_set_pte_writable(p) do {(p).val |= DMA_PTE_WRITE;} while (0) #define dma_set_pte_prot(p, prot) \ do {(p).val = ((p).val & ~3) | ((prot) & 3); } while (0) -#define dma_pte_addr(p) ((p).val & PAGE_MASK_4K) +#define dma_pte_addr(p) ((p).val & VTD_PAGE_MASK) #define dma_set_pte_addr(p, addr) do {\ - (p).val |= ((addr) & PAGE_MASK_4K); } while (0) + (p).val |= ((addr) & VTD_PAGE_MASK); } while (0) #define dma_pte_present(p) (((p).val & 3) != 0) struct intel_iommu; diff --git a/include/linux/dmar.h b/include/linux/dmar.h index c360c558e59e..f1984fc3e06d 100644 --- a/include/linux/dmar.h +++ b/include/linux/dmar.h @@ -45,7 +45,6 @@ extern struct list_head dmar_drhd_units; list_for_each_entry(drhd, &dmar_drhd_units, list) extern int dmar_table_init(void); -extern int early_dmar_detect(void); extern int dmar_dev_scope_init(void); /* Intel IOMMU detection */ diff --git a/include/linux/dvb/frontend.h b/include/linux/dvb/frontend.h index 6e4ace270276..79a8ed8e6a7d 100644 --- a/include/linux/dvb/frontend.h +++ b/include/linux/dvb/frontend.h @@ -166,6 +166,7 @@ typedef enum fe_modulation { VSB_16, PSK_8, APSK_16, + APSK_32, DQPSK, } fe_modulation_t; @@ -295,6 +296,7 @@ typedef enum fe_delivery_system { SYS_DVBC_ANNEX_AC, SYS_DVBC_ANNEX_B, SYS_DVBT, + SYS_DSS, SYS_DVBS, SYS_DVBS2, SYS_DVBH, diff --git a/include/linux/efi.h b/include/linux/efi.h index 807373d467f7..bb66feb164bd 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -208,6 +208,9 @@ typedef efi_status_t efi_set_virtual_address_map_t (unsigned long memory_map_siz #define EFI_GLOBAL_VARIABLE_GUID \ EFI_GUID( 0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c ) +#define UV_SYSTEM_TABLE_GUID \ + EFI_GUID( 0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93 ) + typedef struct { efi_guid_t guid; unsigned long table; @@ -255,6 +258,7 @@ extern struct efi { unsigned long boot_info; /* boot info table */ unsigned long hcdp; /* HCDP table */ unsigned long uga; /* UGA table */ + unsigned long uv_systab; /* UV system table */ efi_get_time_t *get_time; efi_set_time_t *set_time; efi_get_wakeup_time_t *get_wakeup_time; diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h index 159d9b476cd7..d14f02918483 100644 --- a/include/linux/ext3_fs.h +++ b/include/linux/ext3_fs.h @@ -380,6 +380,8 @@ struct ext3_inode { #define EXT3_MOUNT_QUOTA 0x80000 /* Some quota option set */ #define EXT3_MOUNT_USRQUOTA 0x100000 /* "old" user quota */ #define EXT3_MOUNT_GRPQUOTA 0x200000 /* "old" group quota */ +#define EXT3_MOUNT_DATA_ERR_ABORT 0x400000 /* Abort on file data write + * error in ordered mode */ /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */ #ifndef _LINUX_EXT2_FS_H diff --git a/include/linux/fb.h b/include/linux/fb.h index 531ccd5f5960..75a81eaf3430 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -808,6 +808,7 @@ struct fb_tile_ops { struct fb_info { int node; int flags; + struct mutex lock; /* Lock for open/release/ioctl funcs */ struct fb_var_screeninfo var; /* Current var */ struct fb_fix_screeninfo fix; /* Current fix */ struct fb_monspecs monspecs; /* Current Monitor specs */ diff --git a/include/linux/file.h b/include/linux/file.h index a20259e248a5..335a0a5c316e 100644 --- a/include/linux/file.h +++ b/include/linux/file.h @@ -19,10 +19,10 @@ struct file_operations; struct vfsmount; struct dentry; extern int init_file(struct file *, struct vfsmount *mnt, - struct dentry *dentry, mode_t mode, + struct dentry *dentry, fmode_t mode, const struct file_operations *fop); extern struct file *alloc_file(struct vfsmount *, struct dentry *dentry, - mode_t mode, const struct file_operations *fop); + fmode_t mode, const struct file_operations *fop); static inline void fput_light(struct file *file, int fput_needed) { diff --git a/include/linux/freezer.h b/include/linux/freezer.h index deddeedf3257..8f225339eee9 100644 --- a/include/linux/freezer.h +++ b/include/linux/freezer.h @@ -6,7 +6,7 @@ #include <linux/sched.h> #include <linux/wait.h> -#ifdef CONFIG_PM_SLEEP +#ifdef CONFIG_FREEZER /* * Check if a process has been frozen */ @@ -39,28 +39,18 @@ static inline void clear_freeze_flag(struct task_struct *p) clear_tsk_thread_flag(p, TIF_FREEZE); } +static inline bool should_send_signal(struct task_struct *p) +{ + return !(p->flags & PF_FREEZER_NOSIG); +} + /* * Wake up a frozen process - * - * task_lock() is taken to prevent the race with refrigerator() which may - * occur if the freezing of tasks fails. Namely, without the lock, if the - * freezing of tasks failed, thaw_tasks() might have run before a task in - * refrigerator() could call frozen_process(), in which case the task would be - * frozen and no one would thaw it. */ -static inline int thaw_process(struct task_struct *p) -{ - task_lock(p); - if (frozen(p)) { - p->flags &= ~PF_FROZEN; - task_unlock(p); - wake_up_process(p); - return 1; - } - clear_freeze_flag(p); - task_unlock(p); - return 0; -} +extern int __thaw_process(struct task_struct *p); + +/* Takes and releases task alloc lock using task_lock() */ +extern int thaw_process(struct task_struct *p); extern void refrigerator(void); extern int freeze_processes(void); @@ -75,6 +65,15 @@ static inline int try_to_freeze(void) return 0; } +extern bool freeze_task(struct task_struct *p, bool sig_only); +extern void cancel_freezing(struct task_struct *p); + +#ifdef CONFIG_CGROUP_FREEZER +extern int cgroup_frozen(struct task_struct *task); +#else /* !CONFIG_CGROUP_FREEZER */ +static inline int cgroup_frozen(struct task_struct *task) { return 0; } +#endif /* !CONFIG_CGROUP_FREEZER */ + /* * The PF_FREEZER_SKIP flag should be set by a vfork parent right before it * calls wait_for_completion(&vfork) and reset right after it returns from this @@ -166,7 +165,7 @@ static inline void set_freezable_with_signal(void) } while (try_to_freeze()); \ __retval; \ }) -#else /* !CONFIG_PM_SLEEP */ +#else /* !CONFIG_FREEZER */ static inline int frozen(struct task_struct *p) { return 0; } static inline int freezing(struct task_struct *p) { return 0; } static inline void set_freeze_flag(struct task_struct *p) {} @@ -191,6 +190,6 @@ static inline void set_freezable_with_signal(void) {} #define wait_event_freezable_timeout(wq, condition, timeout) \ wait_event_interruptible_timeout(wq, condition, timeout) -#endif /* !CONFIG_PM_SLEEP */ +#endif /* !CONFIG_FREEZER */ #endif /* FREEZER_H_INCLUDED */ diff --git a/include/linux/fs.h b/include/linux/fs.h index a6a625be13fc..5b248d61430c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -63,18 +63,23 @@ extern int dir_notify_enable; #define MAY_ACCESS 16 #define MAY_OPEN 32 -#define FMODE_READ 1 -#define FMODE_WRITE 2 +#define FMODE_READ ((__force fmode_t)1) +#define FMODE_WRITE ((__force fmode_t)2) /* Internal kernel extensions */ -#define FMODE_LSEEK 4 -#define FMODE_PREAD 8 +#define FMODE_LSEEK ((__force fmode_t)4) +#define FMODE_PREAD ((__force fmode_t)8) #define FMODE_PWRITE FMODE_PREAD /* These go hand in hand */ /* File is being opened for execution. Primary users of this flag are distributed filesystems that can use it to achieve correct ETXTBUSY behavior for cross-node execution/opening_for_writing of files */ -#define FMODE_EXEC 16 +#define FMODE_EXEC ((__force fmode_t)16) + +#define FMODE_NDELAY ((__force fmode_t)32) +#define FMODE_EXCL ((__force fmode_t)64) +#define FMODE_WRITE_IOCTL ((__force fmode_t)128) +#define FMODE_NDELAY_NOW ((__force fmode_t)256) #define RW_MASK 1 #define RWA_MASK 2 @@ -136,7 +141,7 @@ extern int dir_notify_enable; /* * Superblock flags that can be altered by MS_REMOUNT */ -#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK) +#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION) /* * Old magic mount flag and mask @@ -825,7 +830,7 @@ struct file { const struct file_operations *f_op; atomic_long_t f_count; unsigned int f_flags; - mode_t f_mode; + fmode_t f_mode; loff_t f_pos; struct fown_struct f_owner; unsigned int f_uid, f_gid; @@ -1037,7 +1042,6 @@ extern int vfs_setlease(struct file *, long, struct file_lock **); extern int lease_modify(struct file_lock **, int); extern int lock_may_read(struct inode *, loff_t start, unsigned long count); extern int lock_may_write(struct inode *, loff_t start, unsigned long count); -extern struct seq_operations locks_seq_operations; #else /* !CONFIG_FILE_LOCKING */ #define fcntl_getlk(a, b) ({ -EINVAL; }) #define fcntl_setlk(a, b, c, d) ({ -EACCES; }) @@ -1152,6 +1156,7 @@ struct super_block { char s_id[32]; /* Informational name */ void *s_fs_info; /* Filesystem private info */ + fmode_t s_mode; /* * The next field is for VFS *only*. No filesystems have any business @@ -1266,20 +1271,7 @@ int generic_osync_inode(struct inode *, struct address_space *, int); * to have different dirent layouts depending on the binary type. */ typedef int (*filldir_t)(void *, const char *, int, loff_t, u64, unsigned); - -struct block_device_operations { - int (*open) (struct inode *, struct file *); - int (*release) (struct inode *, struct file *); - int (*ioctl) (struct inode *, struct file *, unsigned, unsigned long); - long (*unlocked_ioctl) (struct file *, unsigned, unsigned long); - long (*compat_ioctl) (struct file *, unsigned, unsigned long); - int (*direct_access) (struct block_device *, sector_t, - void **, unsigned long *); - int (*media_changed) (struct gendisk *); - int (*revalidate_disk) (struct gendisk *); - int (*getgeo)(struct block_device *, struct hd_geometry *); - struct module *owner; -}; +struct block_device_operations; /* These macros are for out of kernel modules to test that * the kernel supports the unlocked_ioctl and compat_ioctl @@ -1593,7 +1585,6 @@ extern int get_sb_pseudo(struct file_system_type *, char *, struct vfsmount *mnt); extern int simple_set_mnt(struct vfsmount *mnt, struct super_block *sb); int __put_super_and_need_restart(struct super_block *sb); -void unnamed_dev_init(void); /* Alas, no aliases. Too much hassle with bringing module.h everywhere */ #define fops_get(fops) \ @@ -1714,7 +1705,7 @@ extern struct block_device *bdget(dev_t); extern void bd_set_size(struct block_device *, loff_t size); extern void bd_forget(struct inode *inode); extern void bdput(struct block_device *); -extern struct block_device *open_by_devnum(dev_t, unsigned); +extern struct block_device *open_by_devnum(dev_t, fmode_t); #else static inline void bd_forget(struct inode *inode) {} #endif @@ -1724,13 +1715,10 @@ extern const struct file_operations bad_sock_fops; extern const struct file_operations def_fifo_fops; #ifdef CONFIG_BLOCK extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long); -extern int blkdev_ioctl(struct inode *, struct file *, unsigned, unsigned long); -extern int blkdev_driver_ioctl(struct inode *inode, struct file *file, - struct gendisk *disk, unsigned cmd, - unsigned long arg); +extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long); extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long); -extern int blkdev_get(struct block_device *, mode_t, unsigned); -extern int blkdev_put(struct block_device *); +extern int blkdev_get(struct block_device *, fmode_t); +extern int blkdev_put(struct block_device *, fmode_t); extern int bd_claim(struct block_device *, void *); extern void bd_release(struct block_device *); #ifdef CONFIG_SYSFS @@ -1761,9 +1749,10 @@ extern void chrdev_show(struct seq_file *,off_t); extern const char *__bdevname(dev_t, char *buffer); extern const char *bdevname(struct block_device *bdev, char *buffer); extern struct block_device *lookup_bdev(const char *); -extern struct block_device *open_bdev_excl(const char *, int, void *); -extern void close_bdev_excl(struct block_device *); +extern struct block_device *open_bdev_exclusive(const char *, fmode_t, void *); +extern void close_bdev_exclusive(struct block_device *, fmode_t); extern void blkdev_show(struct seq_file *,off_t); + #else #define BLKDEV_MAJOR_HASH_SIZE 0 #endif @@ -1852,6 +1841,11 @@ extern int inode_permission(struct inode *, int); extern int generic_permission(struct inode *, int, int (*check_acl)(struct inode *, int)); +static inline bool execute_ok(struct inode *inode) +{ + return (inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode); +} + extern int get_write_access(struct inode *); extern int deny_write_access(struct file *); static inline void put_write_access(struct inode * inode) diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h index a89513188ce7..00fbd5b245c9 100644 --- a/include/linux/fsnotify.h +++ b/include/linux/fsnotify.h @@ -188,7 +188,7 @@ static inline void fsnotify_close(struct file *file) struct dentry *dentry = file->f_path.dentry; struct inode *inode = dentry->d_inode; const char *name = dentry->d_name.name; - mode_t mode = file->f_mode; + fmode_t mode = file->f_mode; u32 mask = (mode & FMODE_WRITE) ? IN_CLOSE_WRITE : IN_CLOSE_NOWRITE; if (S_ISDIR(inode->i_mode)) diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index bb384068272e..a3d46151be19 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -1,10 +1,14 @@ #ifndef _LINUX_FTRACE_H #define _LINUX_FTRACE_H -#ifdef CONFIG_FTRACE - #include <linux/linkage.h> #include <linux/fs.h> +#include <linux/ktime.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/kallsyms.h> + +#ifdef CONFIG_FTRACE extern int ftrace_enabled; extern int @@ -36,6 +40,7 @@ extern void ftrace_stub(unsigned long a0, unsigned long a1); # define register_ftrace_function(ops) do { } while (0) # define unregister_ftrace_function(ops) do { } while (0) # define clear_ftrace_function(ops) do { } while (0) +static inline void ftrace_kill_atomic(void) { } #endif /* CONFIG_FTRACE */ #ifdef CONFIG_DYNAMIC_FTRACE @@ -76,8 +81,10 @@ extern void mcount_call(void); extern int skip_trace(unsigned long ip); -void ftrace_disable_daemon(void); -void ftrace_enable_daemon(void); +extern void ftrace_release(void *start, unsigned long size); + +extern void ftrace_disable_daemon(void); +extern void ftrace_enable_daemon(void); #else # define skip_trace(ip) ({ 0; }) @@ -85,6 +92,7 @@ void ftrace_enable_daemon(void); # define ftrace_set_filter(buf, len, reset) do { } while (0) # define ftrace_disable_daemon() do { } while (0) # define ftrace_enable_daemon() do { } while (0) +static inline void ftrace_release(void *start, unsigned long size) { } #endif /* CONFIG_DYNAMIC_FTRACE */ /* totally disable ftrace - can not re-enable after this */ @@ -98,9 +106,11 @@ static inline void tracer_disable(void) #endif } -/* Ftrace disable/restore without lock. Some synchronization mechanism +/* + * Ftrace disable/restore without lock. Some synchronization mechanism * must be used to prevent ftrace_enabled to be changed between - * disable/restore. */ + * disable/restore. + */ static inline int __ftrace_enabled_save(void) { #ifdef CONFIG_FTRACE @@ -157,9 +167,71 @@ static inline void __ftrace_enabled_restore(int enabled) #ifdef CONFIG_TRACING extern void ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3); + +/** + * ftrace_printk - printf formatting in the ftrace buffer + * @fmt: the printf format for printing + * + * Note: __ftrace_printk is an internal function for ftrace_printk and + * the @ip is passed in via the ftrace_printk macro. + * + * This function allows a kernel developer to debug fast path sections + * that printk is not appropriate for. By scattering in various + * printk like tracing in the code, a developer can quickly see + * where problems are occurring. + * + * This is intended as a debugging tool for the developer only. + * Please refrain from leaving ftrace_printks scattered around in + * your code. + */ +# define ftrace_printk(fmt...) __ftrace_printk(_THIS_IP_, fmt) +extern int +__ftrace_printk(unsigned long ip, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))); +extern void ftrace_dump(void); #else static inline void ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { } +static inline int +ftrace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 0))); + +static inline int +ftrace_printk(const char *fmt, ...) +{ + return 0; +} +static inline void ftrace_dump(void) { } #endif +#ifdef CONFIG_FTRACE_MCOUNT_RECORD +extern void ftrace_init(void); +extern void ftrace_init_module(unsigned long *start, unsigned long *end); +#else +static inline void ftrace_init(void) { } +static inline void +ftrace_init_module(unsigned long *start, unsigned long *end) { } +#endif + + +struct boot_trace { + pid_t caller; + char func[KSYM_NAME_LEN]; + int result; + unsigned long long duration; /* usecs */ + ktime_t calltime; + ktime_t rettime; +}; + +#ifdef CONFIG_BOOT_TRACER +extern void trace_boot(struct boot_trace *it, initcall_t fn); +extern void start_boot_trace(void); +extern void stop_boot_trace(void); +#else +static inline void trace_boot(struct boot_trace *it, initcall_t fn) { } +static inline void start_boot_trace(void) { } +static inline void stop_boot_trace(void) { } +#endif + + + #endif /* _LINUX_FTRACE_H */ diff --git a/include/linux/fuse.h b/include/linux/fuse.h index 265635dc9908..350fe9767bbc 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -17,8 +17,14 @@ * - add lock_owner field to fuse_setattr_in, fuse_read_in and fuse_write_in * - add blksize field to fuse_attr * - add file flags field to fuse_read_in and fuse_write_in + * + * 7.10 + * - add nonseekable open flag */ +#ifndef _LINUX_FUSE_H +#define _LINUX_FUSE_H + #include <asm/types.h> #include <linux/major.h> @@ -26,7 +32,7 @@ #define FUSE_KERNEL_VERSION 7 /** Minor version number of this interface */ -#define FUSE_KERNEL_MINOR_VERSION 9 +#define FUSE_KERNEL_MINOR_VERSION 10 /** The node ID of the root inode */ #define FUSE_ROOT_ID 1 @@ -98,9 +104,11 @@ struct fuse_file_lock { * * FOPEN_DIRECT_IO: bypass page cache for this open file * FOPEN_KEEP_CACHE: don't invalidate the data cache on open + * FOPEN_NONSEEKABLE: the file is not seekable */ #define FOPEN_DIRECT_IO (1 << 0) #define FOPEN_KEEP_CACHE (1 << 1) +#define FOPEN_NONSEEKABLE (1 << 2) /** * INIT request/reply flags @@ -409,3 +417,5 @@ struct fuse_dirent { #define FUSE_DIRENT_ALIGN(x) (((x) + sizeof(__u64) - 1) & ~(sizeof(__u64) - 1)) #define FUSE_DIRENT_SIZE(d) \ FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) + +#endif /* _LINUX_FUSE_H */ diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 206cdf96c3a7..e439e6aed832 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -25,9 +25,6 @@ extern struct device_type part_type; extern struct kobject *block_depr; extern struct class block_class; -extern const struct seq_operations partitions_op; -extern const struct seq_operations diskstats_op; - enum { /* These three have identical behaviour; use the second one if DOS FDISK gets confused about extended/logical partitions starting past cylinder 1023. */ diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 2f245fe63bda..2b3645b1acf4 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -20,6 +20,8 @@ #include <linux/init.h> #include <linux/list.h> #include <linux/wait.h> +#include <linux/percpu.h> + struct hrtimer_clock_base; struct hrtimer_cpu_base; @@ -101,9 +103,14 @@ enum hrtimer_cb_mode { /** * struct hrtimer - the basic hrtimer structure * @node: red black tree node for time ordered insertion - * @expires: the absolute expiry time in the hrtimers internal + * @_expires: the absolute expiry time in the hrtimers internal * representation. The time is related to the clock on - * which the timer is based. + * which the timer is based. Is setup by adding + * slack to the _softexpires value. For non range timers + * identical to _softexpires. + * @_softexpires: the absolute earliest expiry time of the hrtimer. + * The time which was given as expiry time when the timer + * was armed. * @function: timer expiry callback function * @base: pointer to the timer base (per cpu and per clock) * @state: state information (See bit values above) @@ -121,16 +128,17 @@ enum hrtimer_cb_mode { */ struct hrtimer { struct rb_node node; - ktime_t expires; + ktime_t _expires; + ktime_t _softexpires; enum hrtimer_restart (*function)(struct hrtimer *); struct hrtimer_clock_base *base; unsigned long state; - enum hrtimer_cb_mode cb_mode; struct list_head cb_entry; + enum hrtimer_cb_mode cb_mode; #ifdef CONFIG_TIMER_STATS + int start_pid; void *start_site; char start_comm[16]; - int start_pid; #endif }; @@ -155,10 +163,8 @@ struct hrtimer_sleeper { * @first: pointer to the timer node which expires first * @resolution: the resolution of the clock, in nanoseconds * @get_time: function to retrieve the current time of the clock - * @get_softirq_time: function to retrieve the current time from the softirq * @softirq_time: the time when running the hrtimer queue in the softirq * @offset: offset of this clock to the monotonic base - * @reprogram: function to reprogram the timer event */ struct hrtimer_clock_base { struct hrtimer_cpu_base *cpu_base; @@ -167,13 +173,9 @@ struct hrtimer_clock_base { struct rb_node *first; ktime_t resolution; ktime_t (*get_time)(void); - ktime_t (*get_softirq_time)(void); ktime_t softirq_time; #ifdef CONFIG_HIGH_RES_TIMERS ktime_t offset; - int (*reprogram)(struct hrtimer *t, - struct hrtimer_clock_base *b, - ktime_t n); #endif }; @@ -207,6 +209,71 @@ struct hrtimer_cpu_base { #endif }; +static inline void hrtimer_set_expires(struct hrtimer *timer, ktime_t time) +{ + timer->_expires = time; + timer->_softexpires = time; +} + +static inline void hrtimer_set_expires_range(struct hrtimer *timer, ktime_t time, ktime_t delta) +{ + timer->_softexpires = time; + timer->_expires = ktime_add_safe(time, delta); +} + +static inline void hrtimer_set_expires_range_ns(struct hrtimer *timer, ktime_t time, unsigned long delta) +{ + timer->_softexpires = time; + timer->_expires = ktime_add_safe(time, ns_to_ktime(delta)); +} + +static inline void hrtimer_set_expires_tv64(struct hrtimer *timer, s64 tv64) +{ + timer->_expires.tv64 = tv64; + timer->_softexpires.tv64 = tv64; +} + +static inline void hrtimer_add_expires(struct hrtimer *timer, ktime_t time) +{ + timer->_expires = ktime_add_safe(timer->_expires, time); + timer->_softexpires = ktime_add_safe(timer->_softexpires, time); +} + +static inline void hrtimer_add_expires_ns(struct hrtimer *timer, unsigned long ns) +{ + timer->_expires = ktime_add_ns(timer->_expires, ns); + timer->_softexpires = ktime_add_ns(timer->_softexpires, ns); +} + +static inline ktime_t hrtimer_get_expires(const struct hrtimer *timer) +{ + return timer->_expires; +} + +static inline ktime_t hrtimer_get_softexpires(const struct hrtimer *timer) +{ + return timer->_softexpires; +} + +static inline s64 hrtimer_get_expires_tv64(const struct hrtimer *timer) +{ + return timer->_expires.tv64; +} +static inline s64 hrtimer_get_softexpires_tv64(const struct hrtimer *timer) +{ + return timer->_softexpires.tv64; +} + +static inline s64 hrtimer_get_expires_ns(const struct hrtimer *timer) +{ + return ktime_to_ns(timer->_expires); +} + +static inline ktime_t hrtimer_expires_remaining(const struct hrtimer *timer) +{ + return ktime_sub(timer->_expires, timer->base->get_time()); +} + #ifdef CONFIG_HIGH_RES_TIMERS struct clock_event_device; @@ -227,6 +294,8 @@ static inline int hrtimer_is_hres_active(struct hrtimer *timer) return timer->base->cpu_base->hres_active; } +extern void hrtimer_peek_ahead_timers(void); + /* * The resolution of the clocks. The resolution value is returned in * the clock_getres() system call to give application programmers an @@ -249,6 +318,7 @@ static inline int hrtimer_is_hres_active(struct hrtimer *timer) * is expired in the next softirq when the clock was advanced. */ static inline void clock_was_set(void) { } +static inline void hrtimer_peek_ahead_timers(void) { } static inline void hres_timers_resume(void) { } @@ -270,6 +340,10 @@ static inline int hrtimer_is_hres_active(struct hrtimer *timer) extern ktime_t ktime_get(void); extern ktime_t ktime_get_real(void); + +DECLARE_PER_CPU(struct tick_device, tick_cpu_device); + + /* Exported timer functions: */ /* Initialize timers: */ @@ -294,12 +368,25 @@ static inline void destroy_hrtimer_on_stack(struct hrtimer *timer) { } /* Basic timer operations: */ extern int hrtimer_start(struct hrtimer *timer, ktime_t tim, const enum hrtimer_mode mode); +extern int hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, + unsigned long range_ns, const enum hrtimer_mode mode); extern int hrtimer_cancel(struct hrtimer *timer); extern int hrtimer_try_to_cancel(struct hrtimer *timer); +static inline int hrtimer_start_expires(struct hrtimer *timer, + enum hrtimer_mode mode) +{ + unsigned long delta; + ktime_t soft, hard; + soft = hrtimer_get_softexpires(timer); + hard = hrtimer_get_expires(timer); + delta = ktime_to_ns(ktime_sub(hard, soft)); + return hrtimer_start_range_ns(timer, soft, delta, mode); +} + static inline int hrtimer_restart(struct hrtimer *timer) { - return hrtimer_start(timer, timer->expires, HRTIMER_MODE_ABS); + return hrtimer_start_expires(timer, HRTIMER_MODE_ABS); } /* Query timers: */ @@ -356,6 +443,10 @@ extern long hrtimer_nanosleep_restart(struct restart_block *restart_block); extern void hrtimer_init_sleeper(struct hrtimer_sleeper *sl, struct task_struct *tsk); +extern int schedule_hrtimeout_range(ktime_t *expires, unsigned long delta, + const enum hrtimer_mode mode); +extern int schedule_hrtimeout(ktime_t *expires, const enum hrtimer_mode mode); + /* Soft interrupt function to run the hrtimer queues: */ extern void hrtimer_run_queues(void); extern void hrtimer_run_pending(void); diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 32e0ef0f6e1f..e1c8afc002c0 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -27,7 +27,7 @@ void unmap_hugepage_range(struct vm_area_struct *, void __unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long, struct page *); int hugetlb_prefault(struct address_space *, struct vm_area_struct *); -int hugetlb_report_meminfo(char *); +void hugetlb_report_meminfo(struct seq_file *); int hugetlb_report_node_meminfo(int, char *); unsigned long hugetlb_total_pages(void); int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma, @@ -79,7 +79,9 @@ static inline unsigned long hugetlb_total_pages(void) #define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; }) #define hugetlb_prefault(mapping, vma) ({ BUG(); 0; }) #define unmap_hugepage_range(vma, start, end, page) BUG() -#define hugetlb_report_meminfo(buf) 0 +static inline void hugetlb_report_meminfo(struct seq_file *m) +{ +} #define hugetlb_report_node_meminfo(n, buf) 0 #define follow_huge_pmd(mm, addr, pmd, write) NULL #define follow_huge_pud(mm, addr, pud, write) NULL diff --git a/include/linux/i2c-algo-pcf.h b/include/linux/i2c-algo-pcf.h index 0177d280f733..0f91a957a690 100644 --- a/include/linux/i2c-algo-pcf.h +++ b/include/linux/i2c-algo-pcf.h @@ -31,7 +31,10 @@ struct i2c_algo_pcf_data { int (*getpcf) (void *data, int ctl); int (*getown) (void *data); int (*getclock) (void *data); - void (*waitforpin) (void); + void (*waitforpin) (void *data); + + void (*xfer_begin) (void *data); + void (*xfer_end) (void *data); /* Multi-master lost arbitration back-off delay (msecs) * This should be set by the bus adapter or knowledgable client diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h index 493435bcdbe5..01d67ba9e985 100644 --- a/include/linux/i2c-id.h +++ b/include/linux/i2c-id.h @@ -60,7 +60,7 @@ #define I2C_DRIVERID_WM8775 69 /* wm8775 audio processor */ #define I2C_DRIVERID_CS53L32A 70 /* cs53l32a audio processor */ #define I2C_DRIVERID_CX25840 71 /* cx2584x video encoder */ -#define I2C_DRIVERID_SAA7127 72 /* saa7124 video encoder */ +#define I2C_DRIVERID_SAA7127 72 /* saa7127 video encoder */ #define I2C_DRIVERID_SAA711X 73 /* saa711x video encoders */ #define I2C_DRIVERID_AKITAIOEXP 74 /* IO Expander on Sharp SL-C1000 */ #define I2C_DRIVERID_INFRARED 75 /* I2C InfraRed on Video boards */ diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 06115128047f..33a5992d4936 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -53,45 +53,44 @@ struct i2c_board_info; * transmit one message at a time, a more complex version can be used to * transmit an arbitrary number of messages without interruption. */ -extern int i2c_master_send(struct i2c_client *,const char* ,int); -extern int i2c_master_recv(struct i2c_client *,char* ,int); +extern int i2c_master_send(struct i2c_client *client, const char *buf, + int count); +extern int i2c_master_recv(struct i2c_client *client, char *buf, int count); /* Transfer num messages. */ -extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num); - +extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, + int num); /* This is the very generalized SMBus access routine. You probably do not want to use this, though; one of the functions below may be much easier, and probably just as fast. Note that we use i2c_adapter here, because you do not need a specific smbus adapter to call this function. */ -extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr, - unsigned short flags, - char read_write, u8 command, int size, - union i2c_smbus_data * data); +extern s32 i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr, + unsigned short flags, char read_write, u8 command, + int size, union i2c_smbus_data *data); /* Now follow the 'nice' access routines. These also document the calling conventions of i2c_smbus_xfer. */ -extern s32 i2c_smbus_read_byte(struct i2c_client * client); -extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value); -extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command); -extern s32 i2c_smbus_write_byte_data(struct i2c_client * client, - u8 command, u8 value); -extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command); -extern s32 i2c_smbus_write_word_data(struct i2c_client * client, - u8 command, u16 value); +extern s32 i2c_smbus_read_byte(struct i2c_client *client); +extern s32 i2c_smbus_write_byte(struct i2c_client *client, u8 value); +extern s32 i2c_smbus_read_byte_data(struct i2c_client *client, u8 command); +extern s32 i2c_smbus_write_byte_data(struct i2c_client *client, + u8 command, u8 value); +extern s32 i2c_smbus_read_word_data(struct i2c_client *client, u8 command); +extern s32 i2c_smbus_write_word_data(struct i2c_client *client, + u8 command, u16 value); /* Returns the number of read bytes */ extern s32 i2c_smbus_read_block_data(struct i2c_client *client, u8 command, u8 *values); -extern s32 i2c_smbus_write_block_data(struct i2c_client * client, - u8 command, u8 length, - const u8 *values); +extern s32 i2c_smbus_write_block_data(struct i2c_client *client, + u8 command, u8 length, const u8 *values); /* Returns the number of read bytes */ -extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client, +extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client, u8 command, u8 length, u8 *values); -extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client, +extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client, u8 command, u8 length, const u8 *values); @@ -169,7 +168,7 @@ struct i2c_driver { /* a ioctl like command that can be used to perform specific functions * with the device. */ - int (*command)(struct i2c_client *client,unsigned int cmd, void *arg); + int (*command)(struct i2c_client *client, unsigned int cmd, void *arg); struct device_driver driver; const struct i2c_device_id *id_table; @@ -224,14 +223,14 @@ static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj) return to_i2c_client(dev); } -static inline void *i2c_get_clientdata (struct i2c_client *dev) +static inline void *i2c_get_clientdata(const struct i2c_client *dev) { - return dev_get_drvdata (&dev->dev); + return dev_get_drvdata(&dev->dev); } -static inline void i2c_set_clientdata (struct i2c_client *dev, void *data) +static inline void i2c_set_clientdata(struct i2c_client *dev, void *data) { - dev_set_drvdata (&dev->dev, data); + dev_set_drvdata(&dev->dev, data); } /** @@ -240,6 +239,7 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data) * @flags: to initialize i2c_client.flags * @addr: stored in i2c_client.addr * @platform_data: stored in i2c_client.dev.platform_data + * @archdata: copied into i2c_client.dev.archdata * @irq: stored in i2c_client.irq * * I2C doesn't actually support hardware probing, although controllers and @@ -259,6 +259,7 @@ struct i2c_board_info { unsigned short flags; unsigned short addr; void *platform_data; + struct dev_archdata *archdata; int irq; }; @@ -272,7 +273,7 @@ struct i2c_board_info { * fields (such as associated irq, or device-specific platform_data) * are provided using conventional syntax. */ -#define I2C_BOARD_INFO(dev_type,dev_addr) \ +#define I2C_BOARD_INFO(dev_type, dev_addr) \ .type = (dev_type), .addr = (dev_addr) @@ -306,10 +307,12 @@ extern void i2c_unregister_device(struct i2c_client *); */ #ifdef CONFIG_I2C_BOARDINFO extern int -i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsigned n); +i2c_register_board_info(int busnum, struct i2c_board_info const *info, + unsigned n); #else static inline int -i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsigned n) +i2c_register_board_info(int busnum, struct i2c_board_info const *info, + unsigned n) { return 0; } @@ -328,11 +331,11 @@ struct i2c_algorithm { using common I2C messages */ /* master_xfer should return the number of messages successfully processed, or a negative value on error */ - int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs, - int num); + int (*master_xfer)(struct i2c_adapter *adap, struct i2c_msg *msgs, + int num); int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, - unsigned short flags, char read_write, - u8 command, int size, union i2c_smbus_data * data); + unsigned short flags, char read_write, + u8 command, int size, union i2c_smbus_data *data); /* To determine what the adapter supports */ u32 (*functionality) (struct i2c_adapter *); @@ -345,7 +348,7 @@ struct i2c_algorithm { struct i2c_adapter { struct module *owner; unsigned int id; - unsigned int class; + unsigned int class; /* classes to allow probing for */ const struct i2c_algorithm *algo; /* the algorithm to access the bus */ void *algo_data; @@ -369,14 +372,14 @@ struct i2c_adapter { }; #define to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev) -static inline void *i2c_get_adapdata (struct i2c_adapter *dev) +static inline void *i2c_get_adapdata(const struct i2c_adapter *dev) { - return dev_get_drvdata (&dev->dev); + return dev_get_drvdata(&dev->dev); } -static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data) +static inline void i2c_set_adapdata(struct i2c_adapter *dev, void *data) { - dev_set_drvdata (&dev->dev, data); + dev_set_drvdata(&dev->dev, data); } /*flags for the client struct: */ @@ -449,7 +452,7 @@ extern int i2c_probe(struct i2c_adapter *adapter, const struct i2c_client_address_data *address_data, int (*found_proc) (struct i2c_adapter *, int, int)); -extern struct i2c_adapter* i2c_get_adapter(int id); +extern struct i2c_adapter *i2c_get_adapter(int id); extern void i2c_put_adapter(struct i2c_adapter *adap); @@ -465,7 +468,7 @@ static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func) return (func & i2c_get_functionality(adap)) == func; } -/* Return id number for a specific adapter */ +/* Return the adapter number for a specific adapter */ static inline int i2c_adapter_id(struct i2c_adapter *adap) { return adap->nr; @@ -526,7 +529,7 @@ struct i2c_msg { #define I2C_FUNC_I2C 0x00000001 #define I2C_FUNC_10BIT_ADDR 0x00000002 -#define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */ +#define I2C_FUNC_PROTOCOL_MANGLING 0x00000004 /* I2C_M_NOSTART etc. */ #define I2C_FUNC_SMBUS_PEC 0x00000008 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL 0x00008000 /* SMBus 2.0 */ #define I2C_FUNC_SMBUS_QUICK 0x00010000 @@ -541,30 +544,26 @@ struct i2c_msg { #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK 0x04000000 /* I2C-like block xfer */ #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK 0x08000000 /* w/ 1-byte reg. addr. */ -#define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 0x10000000 /* I2C-like block xfer */ -#define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */ - -#define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \ - I2C_FUNC_SMBUS_WRITE_BYTE) -#define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \ - I2C_FUNC_SMBUS_WRITE_BYTE_DATA) -#define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \ - I2C_FUNC_SMBUS_WRITE_WORD_DATA) -#define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \ - I2C_FUNC_SMBUS_WRITE_BLOCK_DATA) -#define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \ - I2C_FUNC_SMBUS_WRITE_I2C_BLOCK) -#define I2C_FUNC_SMBUS_I2C_BLOCK_2 (I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 | \ - I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2) - -#define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | \ - I2C_FUNC_SMBUS_BYTE | \ - I2C_FUNC_SMBUS_BYTE_DATA | \ - I2C_FUNC_SMBUS_WORD_DATA | \ - I2C_FUNC_SMBUS_PROC_CALL | \ - I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \ - I2C_FUNC_SMBUS_I2C_BLOCK | \ - I2C_FUNC_SMBUS_PEC) + +#define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \ + I2C_FUNC_SMBUS_WRITE_BYTE) +#define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \ + I2C_FUNC_SMBUS_WRITE_BYTE_DATA) +#define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \ + I2C_FUNC_SMBUS_WRITE_WORD_DATA) +#define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \ + I2C_FUNC_SMBUS_WRITE_BLOCK_DATA) +#define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \ + I2C_FUNC_SMBUS_WRITE_I2C_BLOCK) + +#define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | \ + I2C_FUNC_SMBUS_BYTE | \ + I2C_FUNC_SMBUS_BYTE_DATA | \ + I2C_FUNC_SMBUS_WORD_DATA | \ + I2C_FUNC_SMBUS_PROC_CALL | \ + I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \ + I2C_FUNC_SMBUS_I2C_BLOCK | \ + I2C_FUNC_SMBUS_PEC) /* * Data for SMBus Messages @@ -574,7 +573,7 @@ union i2c_smbus_data { __u8 byte; __u16 word; __u8 block[I2C_SMBUS_BLOCK_MAX + 2]; /* block[0] is used for length */ - /* and one more for user-space compatibility */ + /* and one more for user-space compatibility */ }; /* i2c_smbus_xfer read or write markers */ @@ -602,21 +601,21 @@ union i2c_smbus_data { /* Default fill of many variables */ #define I2C_CLIENT_DEFAULTS {I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ - I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END} + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \ + I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END} /* I2C_CLIENT_MODULE_PARM creates a module parameter, and puts it in the module header */ @@ -625,7 +624,7 @@ union i2c_smbus_data { static unsigned short var[I2C_CLIENT_MAX_OPTS] = I2C_CLIENT_DEFAULTS; \ static unsigned int var##_num; \ module_param_array(var, short, &var##_num, 0); \ - MODULE_PARM_DESC(var,desc) + MODULE_PARM_DESC(var, desc) #define I2C_CLIENT_MODULE_PARM_FORCE(name) \ I2C_CLIENT_MODULE_PARM(force_##name, \ diff --git a/include/linux/i2c/twl4030.h b/include/linux/i2c/twl4030.h new file mode 100644 index 000000000000..fb604dcd38f1 --- /dev/null +++ b/include/linux/i2c/twl4030.h @@ -0,0 +1,343 @@ +/* + * twl4030.h - header for TWL4030 PM and audio CODEC device + * + * Copyright (C) 2005-2006 Texas Instruments, Inc. + * + * Based on tlv320aic23.c: + * Copyright (c) by Kai Svahn <kai.svahn@nokia.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; 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 __TWL4030_H_ +#define __TWL4030_H_ + +/* + * Using the twl4030 core we address registers using a pair + * { module id, relative register offset } + * which that core then maps to the relevant + * { i2c slave, absolute register address } + * + * The module IDs are meaningful only to the twl4030 core code, + * which uses them as array indices to look up the first register + * address each module uses within a given i2c slave. + */ + +/* Slave 0 (i2c address 0x48) */ +#define TWL4030_MODULE_USB 0x00 + +/* Slave 1 (i2c address 0x49) */ +#define TWL4030_MODULE_AUDIO_VOICE 0x01 +#define TWL4030_MODULE_GPIO 0x02 +#define TWL4030_MODULE_INTBR 0x03 +#define TWL4030_MODULE_PIH 0x04 +#define TWL4030_MODULE_TEST 0x05 + +/* Slave 2 (i2c address 0x4a) */ +#define TWL4030_MODULE_KEYPAD 0x06 +#define TWL4030_MODULE_MADC 0x07 +#define TWL4030_MODULE_INTERRUPTS 0x08 +#define TWL4030_MODULE_LED 0x09 +#define TWL4030_MODULE_MAIN_CHARGE 0x0A +#define TWL4030_MODULE_PRECHARGE 0x0B +#define TWL4030_MODULE_PWM0 0x0C +#define TWL4030_MODULE_PWM1 0x0D +#define TWL4030_MODULE_PWMA 0x0E +#define TWL4030_MODULE_PWMB 0x0F + +/* Slave 3 (i2c address 0x4b) */ +#define TWL4030_MODULE_BACKUP 0x10 +#define TWL4030_MODULE_INT 0x11 +#define TWL4030_MODULE_PM_MASTER 0x12 +#define TWL4030_MODULE_PM_RECEIVER 0x13 +#define TWL4030_MODULE_RTC 0x14 +#define TWL4030_MODULE_SECURED_REG 0x15 + +/* + * Read and write single 8-bit registers + */ +int twl4030_i2c_write_u8(u8 mod_no, u8 val, u8 reg); +int twl4030_i2c_read_u8(u8 mod_no, u8 *val, u8 reg); + +/* + * Read and write several 8-bit registers at once. + * + * IMPORTANT: For twl4030_i2c_write(), allocate num_bytes + 1 + * for the value, and populate your data starting at offset 1. + */ +int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, u8 num_bytes); +int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes); + +/*----------------------------------------------------------------------*/ + +/* + * NOTE: at up to 1024 registers, this is a big chip. + * + * Avoid putting register declarations in this file, instead of into + * a driver-private file, unless some of the registers in a block + * need to be shared with other drivers. One example is blocks that + * have Secondary IRQ Handler (SIH) registers. + */ + +#define TWL4030_SIH_CTRL_EXCLEN_MASK BIT(0) +#define TWL4030_SIH_CTRL_PENDDIS_MASK BIT(1) +#define TWL4030_SIH_CTRL_COR_MASK BIT(2) + +/*----------------------------------------------------------------------*/ + +/* + * GPIO Block Register offsets (use TWL4030_MODULE_GPIO) + */ + +#define REG_GPIODATAIN1 0x0 +#define REG_GPIODATAIN2 0x1 +#define REG_GPIODATAIN3 0x2 +#define REG_GPIODATADIR1 0x3 +#define REG_GPIODATADIR2 0x4 +#define REG_GPIODATADIR3 0x5 +#define REG_GPIODATAOUT1 0x6 +#define REG_GPIODATAOUT2 0x7 +#define REG_GPIODATAOUT3 0x8 +#define REG_CLEARGPIODATAOUT1 0x9 +#define REG_CLEARGPIODATAOUT2 0xA +#define REG_CLEARGPIODATAOUT3 0xB +#define REG_SETGPIODATAOUT1 0xC +#define REG_SETGPIODATAOUT2 0xD +#define REG_SETGPIODATAOUT3 0xE +#define REG_GPIO_DEBEN1 0xF +#define REG_GPIO_DEBEN2 0x10 +#define REG_GPIO_DEBEN3 0x11 +#define REG_GPIO_CTRL 0x12 +#define REG_GPIOPUPDCTR1 0x13 +#define REG_GPIOPUPDCTR2 0x14 +#define REG_GPIOPUPDCTR3 0x15 +#define REG_GPIOPUPDCTR4 0x16 +#define REG_GPIOPUPDCTR5 0x17 +#define REG_GPIO_ISR1A 0x19 +#define REG_GPIO_ISR2A 0x1A +#define REG_GPIO_ISR3A 0x1B +#define REG_GPIO_IMR1A 0x1C +#define REG_GPIO_IMR2A 0x1D +#define REG_GPIO_IMR3A 0x1E +#define REG_GPIO_ISR1B 0x1F +#define REG_GPIO_ISR2B 0x20 +#define REG_GPIO_ISR3B 0x21 +#define REG_GPIO_IMR1B 0x22 +#define REG_GPIO_IMR2B 0x23 +#define REG_GPIO_IMR3B 0x24 +#define REG_GPIO_EDR1 0x28 +#define REG_GPIO_EDR2 0x29 +#define REG_GPIO_EDR3 0x2A +#define REG_GPIO_EDR4 0x2B +#define REG_GPIO_EDR5 0x2C +#define REG_GPIO_SIH_CTRL 0x2D + +/* Up to 18 signals are available as GPIOs, when their + * pins are not assigned to another use (such as ULPI/USB). + */ +#define TWL4030_GPIO_MAX 18 + +/*----------------------------------------------------------------------*/ + +/* + * Keypad register offsets (use TWL4030_MODULE_KEYPAD) + * ... SIH/interrupt only + */ + +#define TWL4030_KEYPAD_KEYP_ISR1 0x11 +#define TWL4030_KEYPAD_KEYP_IMR1 0x12 +#define TWL4030_KEYPAD_KEYP_ISR2 0x13 +#define TWL4030_KEYPAD_KEYP_IMR2 0x14 +#define TWL4030_KEYPAD_KEYP_SIR 0x15 /* test register */ +#define TWL4030_KEYPAD_KEYP_EDR 0x16 +#define TWL4030_KEYPAD_KEYP_SIH_CTRL 0x17 + +/*----------------------------------------------------------------------*/ + +/* + * Multichannel ADC register offsets (use TWL4030_MODULE_MADC) + * ... SIH/interrupt only + */ + +#define TWL4030_MADC_ISR1 0x61 +#define TWL4030_MADC_IMR1 0x62 +#define TWL4030_MADC_ISR2 0x63 +#define TWL4030_MADC_IMR2 0x64 +#define TWL4030_MADC_SIR 0x65 /* test register */ +#define TWL4030_MADC_EDR 0x66 +#define TWL4030_MADC_SIH_CTRL 0x67 + +/*----------------------------------------------------------------------*/ + +/* + * Battery charger register offsets (use TWL4030_MODULE_INTERRUPTS) + */ + +#define TWL4030_INTERRUPTS_BCIISR1A 0x0 +#define TWL4030_INTERRUPTS_BCIISR2A 0x1 +#define TWL4030_INTERRUPTS_BCIIMR1A 0x2 +#define TWL4030_INTERRUPTS_BCIIMR2A 0x3 +#define TWL4030_INTERRUPTS_BCIISR1B 0x4 +#define TWL4030_INTERRUPTS_BCIISR2B 0x5 +#define TWL4030_INTERRUPTS_BCIIMR1B 0x6 +#define TWL4030_INTERRUPTS_BCIIMR2B 0x7 +#define TWL4030_INTERRUPTS_BCISIR1 0x8 /* test register */ +#define TWL4030_INTERRUPTS_BCISIR2 0x9 /* test register */ +#define TWL4030_INTERRUPTS_BCIEDR1 0xa +#define TWL4030_INTERRUPTS_BCIEDR2 0xb +#define TWL4030_INTERRUPTS_BCIEDR3 0xc +#define TWL4030_INTERRUPTS_BCISIHCTRL 0xd + +/*----------------------------------------------------------------------*/ + +/* + * Power Interrupt block register offsets (use TWL4030_MODULE_INT) + */ + +#define TWL4030_INT_PWR_ISR1 0x0 +#define TWL4030_INT_PWR_IMR1 0x1 +#define TWL4030_INT_PWR_ISR2 0x2 +#define TWL4030_INT_PWR_IMR2 0x3 +#define TWL4030_INT_PWR_SIR 0x4 /* test register */ +#define TWL4030_INT_PWR_EDR1 0x5 +#define TWL4030_INT_PWR_EDR2 0x6 +#define TWL4030_INT_PWR_SIH_CTRL 0x7 + +/*----------------------------------------------------------------------*/ + +struct twl4030_bci_platform_data { + int *battery_tmp_tbl; + unsigned int tblsize; +}; + +/* TWL4030_GPIO_MAX (18) GPIOs, with interrupts */ +struct twl4030_gpio_platform_data { + int gpio_base; + unsigned irq_base, irq_end; + + /* package the two LED signals as output-only GPIOs? */ + bool use_leds; + + /* gpio-n should control VMMC(n+1) if BIT(n) in mmc_cd is set */ + u8 mmc_cd; + + /* For gpio-N, bit (1 << N) in "pullups" is set if that pullup + * should be enabled. Else, if that bit is set in "pulldowns", + * that pulldown is enabled. Don't waste power by letting any + * digital inputs float... + */ + u32 pullups; + u32 pulldowns; + + int (*setup)(struct device *dev, + unsigned gpio, unsigned ngpio); + int (*teardown)(struct device *dev, + unsigned gpio, unsigned ngpio); +}; + +struct twl4030_madc_platform_data { + int irq_line; +}; + +struct twl4030_keypad_data { + int rows; + int cols; + int *keymap; + int irq; + unsigned int keymapsize; + unsigned int rep:1; +}; + +enum twl4030_usb_mode { + T2_USB_MODE_ULPI = 1, + T2_USB_MODE_CEA2011_3PIN = 2, +}; + +struct twl4030_usb_data { + enum twl4030_usb_mode usb_mode; +}; + +struct twl4030_platform_data { + unsigned irq_base, irq_end; + struct twl4030_bci_platform_data *bci; + struct twl4030_gpio_platform_data *gpio; + struct twl4030_madc_platform_data *madc; + struct twl4030_keypad_data *keypad; + struct twl4030_usb_data *usb; + + /* REVISIT more to come ... _nothing_ should be hard-wired */ +}; + +/*----------------------------------------------------------------------*/ + +int twl4030_sih_setup(int module); + +/* + * FIXME completely stop using TWL4030_IRQ_BASE ... instead, pass the + * IRQ data to subsidiary devices using platform device resources. + */ + +/* IRQ information-need base */ +#include <mach/irqs.h> +/* TWL4030 interrupts */ + +/* #define TWL4030_MODIRQ_GPIO (TWL4030_IRQ_BASE + 0) */ +#define TWL4030_MODIRQ_KEYPAD (TWL4030_IRQ_BASE + 1) +#define TWL4030_MODIRQ_BCI (TWL4030_IRQ_BASE + 2) +#define TWL4030_MODIRQ_MADC (TWL4030_IRQ_BASE + 3) +/* #define TWL4030_MODIRQ_USB (TWL4030_IRQ_BASE + 4) */ +/* #define TWL4030_MODIRQ_PWR (TWL4030_IRQ_BASE + 5) */ + +#define TWL4030_PWRIRQ_PWRBTN (TWL4030_PWR_IRQ_BASE + 0) +/* #define TWL4030_PWRIRQ_CHG_PRES (TWL4030_PWR_IRQ_BASE + 1) */ +/* #define TWL4030_PWRIRQ_USB_PRES (TWL4030_PWR_IRQ_BASE + 2) */ +/* #define TWL4030_PWRIRQ_RTC (TWL4030_PWR_IRQ_BASE + 3) */ +/* #define TWL4030_PWRIRQ_HOT_DIE (TWL4030_PWR_IRQ_BASE + 4) */ +/* #define TWL4030_PWRIRQ_PWROK_TIMEOUT (TWL4030_PWR_IRQ_BASE + 5) */ +/* #define TWL4030_PWRIRQ_MBCHG (TWL4030_PWR_IRQ_BASE + 6) */ +/* #define TWL4030_PWRIRQ_SC_DETECT (TWL4030_PWR_IRQ_BASE + 7) */ + +/* Rest are unsued currently*/ + +/* Offsets to Power Registers */ +#define TWL4030_VDAC_DEV_GRP 0x3B +#define TWL4030_VDAC_DEDICATED 0x3E +#define TWL4030_VAUX1_DEV_GRP 0x17 +#define TWL4030_VAUX1_DEDICATED 0x1A +#define TWL4030_VAUX2_DEV_GRP 0x1B +#define TWL4030_VAUX2_DEDICATED 0x1E +#define TWL4030_VAUX3_DEV_GRP 0x1F +#define TWL4030_VAUX3_DEDICATED 0x22 + +/* TWL4030 GPIO interrupt definitions */ + +#define TWL4030_GPIO_IRQ_NO(n) (TWL4030_GPIO_IRQ_BASE + (n)) + +/* + * Exported TWL4030 GPIO APIs + * + * WARNING -- use standard GPIO and IRQ calls instead; these will vanish. + */ +int twl4030_set_gpio_debounce(int gpio, int enable); + +#if defined(CONFIG_TWL4030_BCI_BATTERY) || \ + defined(CONFIG_TWL4030_BCI_BATTERY_MODULE) + extern int twl4030charger_usb_en(int enable); +#else + static inline int twl4030charger_usb_en(int enable) { return 0; } +#endif + +#endif /* End of __TWL4030_H */ diff --git a/include/linux/ide.h b/include/linux/ide.h index c47e371554c1..54525be4b5f8 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -461,12 +461,26 @@ struct ide_acpi_drive_link; struct ide_acpi_hwif_link; #endif +struct ide_drive_s; + +struct ide_disk_ops { + int (*check)(struct ide_drive_s *, const char *); + int (*get_capacity)(struct ide_drive_s *); + void (*setup)(struct ide_drive_s *); + void (*flush)(struct ide_drive_s *); + int (*init_media)(struct ide_drive_s *, struct gendisk *); + int (*set_doorlock)(struct ide_drive_s *, struct gendisk *, + int); + ide_startstop_t (*do_request)(struct ide_drive_s *, struct request *, + sector_t); + int (*end_request)(struct ide_drive_s *, int, int); + int (*ioctl)(struct ide_drive_s *, struct block_device *, + fmode_t, unsigned int, unsigned long); +}; + /* ATAPI device flags */ enum { IDE_AFLAG_DRQ_INTERRUPT = (1 << 0), - IDE_AFLAG_MEDIA_CHANGED = (1 << 1), - /* Drive cannot lock the door. */ - IDE_AFLAG_NO_DOORLOCK = (1 << 2), /* ide-cd */ /* Drive cannot eject the disc. */ @@ -498,14 +512,10 @@ enum { IDE_AFLAG_LE_SPEED_FIELDS = (1 << 17), /* ide-floppy */ - /* Format in progress */ - IDE_AFLAG_FORMAT_IN_PROGRESS = (1 << 18), /* Avoid commands not supported in Clik drive */ IDE_AFLAG_CLIK_DRIVE = (1 << 19), /* Requires BH algorithm for packets */ IDE_AFLAG_ZIP_DRIVE = (1 << 20), - /* Write protect */ - IDE_AFLAG_WP = (1 << 21), /* Supports format progress report */ IDE_AFLAG_SRFP = (1 << 22), @@ -578,7 +588,11 @@ enum { /* don't unload heads */ IDE_DFLAG_NO_UNLOAD = (1 << 27), /* heads unloaded, please don't reset port */ - IDE_DFLAG_PARKED = (1 << 28) + IDE_DFLAG_PARKED = (1 << 28), + IDE_DFLAG_MEDIA_CHANGED = (1 << 29), + /* write protect */ + IDE_DFLAG_WP = (1 << 30), + IDE_DFLAG_FORMAT_IN_PROGRESS = (1 << 31), }; struct ide_drive_s { @@ -597,6 +611,8 @@ struct ide_drive_s { #endif struct hwif_s *hwif; /* actually (ide_hwif_t *) */ + const struct ide_disk_ops *disk_ops; + unsigned long dev_flags; unsigned long sleep; /* sleep until this time */ @@ -1123,8 +1139,8 @@ struct ide_driver_s { void (*resume)(ide_drive_t *); void (*shutdown)(ide_drive_t *); #ifdef CONFIG_IDE_PROC_FS - ide_proc_entry_t *proc; - const struct ide_proc_devset *settings; + ide_proc_entry_t * (*proc_entries)(ide_drive_t *); + const struct ide_proc_devset * (*proc_devsets)(ide_drive_t *); #endif }; @@ -1142,8 +1158,7 @@ struct ide_ioctl_devset { int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int, unsigned long, const struct ide_ioctl_devset *); -int generic_ide_ioctl(ide_drive_t *, struct file *, struct block_device *, - unsigned, unsigned long); +int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned long); extern int ide_vlb_clk; extern int ide_pci_clk; diff --git a/include/linux/init.h b/include/linux/init.h index ad63824460e3..0c1264668be0 100644 --- a/include/linux/init.h +++ b/include/linux/init.h @@ -40,7 +40,7 @@ /* These are for everybody (although not all archs will actually discard it in modules) */ -#define __init __section(.init.text) __cold +#define __init __section(.init.text) __cold notrace #define __initdata __section(.init.data) #define __initconst __section(.init.rodata) #define __exitdata __section(.exit.data) diff --git a/include/linux/init_task.h b/include/linux/init_task.h index 021d8e720c79..23fd8909b9e5 100644 --- a/include/linux/init_task.h +++ b/include/linux/init_task.h @@ -170,6 +170,7 @@ extern struct group_info init_groups; .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ .fs_excl = ATOMIC_INIT(0), \ .pi_lock = __SPIN_LOCK_UNLOCKED(tsk.pi_lock), \ + .timer_slack_ns = 50000, /* 50 usec default slack */ \ .pids = { \ [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \ [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \ diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index 2e117f30a76c..3d017cfd245b 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -29,6 +29,7 @@ #include <linux/io.h> #include <linux/dma_remapping.h> #include <asm/cacheflush.h> +#include <asm/iommu.h> /* * Intel IOMMU register specification per version 1.0 public spec. @@ -127,6 +128,7 @@ static inline void dmar_writeq(void __iomem *addr, u64 val) /* IOTLB_REG */ +#define DMA_TLB_FLUSH_GRANU_OFFSET 60 #define DMA_TLB_GLOBAL_FLUSH (((u64)1) << 60) #define DMA_TLB_DSI_FLUSH (((u64)2) << 60) #define DMA_TLB_PSI_FLUSH (((u64)3) << 60) @@ -140,6 +142,7 @@ static inline void dmar_writeq(void __iomem *addr, u64 val) #define DMA_TLB_MAX_SIZE (0x3f) /* INVALID_DESC */ +#define DMA_CCMD_INVL_GRANU_OFFSET 61 #define DMA_ID_TLB_GLOBAL_FLUSH (((u64)1) << 3) #define DMA_ID_TLB_DSI_FLUSH (((u64)2) << 3) #define DMA_ID_TLB_PSI_FLUSH (((u64)3) << 3) @@ -200,22 +203,21 @@ static inline void dmar_writeq(void __iomem *addr, u64 val) #define dma_frcd_type(d) ((d >> 30) & 1) #define dma_frcd_fault_reason(c) (c & 0xff) #define dma_frcd_source_id(c) (c & 0xffff) -#define dma_frcd_page_addr(d) (d & (((u64)-1) << 12)) /* low 64 bit */ - -#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) /* 10sec */ - -#define IOMMU_WAIT_OP(iommu, offset, op, cond, sts) \ -{\ - cycles_t start_time = get_cycles();\ - while (1) {\ - sts = op (iommu->reg + offset);\ - if (cond)\ - break;\ +/* low 64 bit */ +#define dma_frcd_page_addr(d) (d & (((u64)-1) << PAGE_SHIFT)) + +#define IOMMU_WAIT_OP(iommu, offset, op, cond, sts) \ +do { \ + cycles_t start_time = get_cycles(); \ + while (1) { \ + sts = op(iommu->reg + offset); \ + if (cond) \ + break; \ if (DMAR_OPERATION_TIMEOUT < (get_cycles() - start_time))\ - panic("DMAR hardware is malfunctioning\n");\ - cpu_relax();\ - }\ -} + panic("DMAR hardware is malfunctioning\n"); \ + cpu_relax(); \ + } \ +} while (0) #define QI_LENGTH 256 /* queue length */ @@ -238,6 +240,19 @@ enum { #define QI_IWD_STATUS_DATA(d) (((u64)d) << 32) #define QI_IWD_STATUS_WRITE (((u64)1) << 5) +#define QI_IOTLB_DID(did) (((u64)did) << 16) +#define QI_IOTLB_DR(dr) (((u64)dr) << 7) +#define QI_IOTLB_DW(dw) (((u64)dw) << 6) +#define QI_IOTLB_GRAN(gran) (((u64)gran) >> (DMA_TLB_FLUSH_GRANU_OFFSET-4)) +#define QI_IOTLB_ADDR(addr) (((u64)addr) & VTD_PAGE_MASK) +#define QI_IOTLB_IH(ih) (((u64)ih) << 6) +#define QI_IOTLB_AM(am) (((u8)am)) + +#define QI_CC_FM(fm) (((u64)fm) << 48) +#define QI_CC_SID(sid) (((u64)sid) << 32) +#define QI_CC_DID(did) (((u64)did) << 16) +#define QI_CC_GRAN(gran) (((u64)gran) >> (DMA_CCMD_INVL_GRANU_OFFSET-4)) + struct qi_desc { u64 low, high; }; @@ -263,6 +278,13 @@ struct ir_table { }; #endif +struct iommu_flush { + int (*flush_context)(struct intel_iommu *iommu, u16 did, u16 sid, u8 fm, + u64 type, int non_present_entry_flush); + int (*flush_iotlb)(struct intel_iommu *iommu, u16 did, u64 addr, + unsigned int size_order, u64 type, int non_present_entry_flush); +}; + struct intel_iommu { void __iomem *reg; /* Pointer to hardware regs, virtual addr */ u64 cap; @@ -282,6 +304,7 @@ struct intel_iommu { unsigned char name[7]; /* Device Name */ struct msi_msg saved_msg; struct sys_device sysdev; + struct iommu_flush flush; #endif struct q_inval *qi; /* Queued invalidation info */ #ifdef CONFIG_INTR_REMAP @@ -303,6 +326,12 @@ extern void free_iommu(struct intel_iommu *iommu); extern int dmar_enable_qi(struct intel_iommu *iommu); extern void qi_global_iec(struct intel_iommu *iommu); +extern int qi_flush_context(struct intel_iommu *iommu, u16 did, u16 sid, + u8 fm, u64 type, int non_present_entry_flush); +extern int qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr, + unsigned int size_order, u64 type, + int non_present_entry_flush); + extern void qi_submit_sync(struct qi_desc *desc, struct intel_iommu *iommu); void intel_iommu_domain_exit(struct dmar_domain *domain); @@ -324,4 +353,11 @@ static inline int intel_iommu_found(void) } #endif /* CONFIG_DMAR */ +extern void *intel_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t); +extern void intel_free_coherent(struct device *, size_t, void *, dma_addr_t); +extern dma_addr_t intel_map_single(struct device *, phys_addr_t, size_t, int); +extern void intel_unmap_single(struct device *, dma_addr_t, size_t, int); +extern int intel_map_sg(struct device *, struct scatterlist *, int, int); +extern void intel_unmap_sg(struct device *, struct scatterlist *, int, int); + #endif diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 54b3623434ec..f58a0cf8929a 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -8,9 +8,12 @@ #include <linux/preempt.h> #include <linux/cpumask.h> #include <linux/irqreturn.h> +#include <linux/irqnr.h> #include <linux/hardirq.h> #include <linux/sched.h> #include <linux/irqflags.h> +#include <linux/smp.h> +#include <linux/percpu.h> #include <asm/atomic.h> #include <asm/ptrace.h> #include <asm/system.h> @@ -273,6 +276,25 @@ extern void softirq_init(void); extern void raise_softirq_irqoff(unsigned int nr); extern void raise_softirq(unsigned int nr); +/* This is the worklist that queues up per-cpu softirq work. + * + * send_remote_sendirq() adds work to these lists, and + * the softirq handler itself dequeues from them. The queues + * are protected by disabling local cpu interrupts and they must + * only be accessed by the local cpu that they are for. + */ +DECLARE_PER_CPU(struct list_head [NR_SOFTIRQS], softirq_work_list); + +/* Try to send a softirq to a remote cpu. If this cannot be done, the + * work will be queued to the local cpu. + */ +extern void send_remote_softirq(struct call_single_data *cp, int cpu, int softirq); + +/* Like send_remote_softirq(), but the caller must disable local cpu interrupts + * and compute the current cpu, passed in as 'this_cpu'. + */ +extern void __send_remote_softirq(struct call_single_data *cp, int cpu, + int this_cpu, int softirq); /* Tasklets --- multithreaded analogue of BHs. diff --git a/include/linux/irq.h b/include/linux/irq.h index 8d9411bc60f6..d058c57be02d 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -18,6 +18,7 @@ #include <linux/spinlock.h> #include <linux/cpumask.h> #include <linux/irqreturn.h> +#include <linux/irqnr.h> #include <linux/errno.h> #include <asm/irq.h> @@ -152,6 +153,7 @@ struct irq_chip { * @name: flow handler name for /proc/interrupts output */ struct irq_desc { + unsigned int irq; irq_flow_handler_t handle_irq; struct irq_chip *chip; struct msi_desc *msi_desc; @@ -170,7 +172,7 @@ struct irq_desc { cpumask_t affinity; unsigned int cpu; #endif -#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE) +#ifdef CONFIG_GENERIC_PENDING_IRQ cpumask_t pending_mask; #endif #ifdef CONFIG_PROC_FS @@ -179,8 +181,14 @@ struct irq_desc { const char *name; } ____cacheline_internodealigned_in_smp; + extern struct irq_desc irq_desc[NR_IRQS]; +static inline struct irq_desc *irq_to_desc(unsigned int irq) +{ + return (irq < nr_irqs) ? irq_desc + irq : NULL; +} + /* * Migration helpers for obsolete names, they will go away: */ @@ -198,19 +206,15 @@ extern int setup_irq(unsigned int irq, struct irqaction *new); #ifdef CONFIG_GENERIC_HARDIRQS -#ifndef handle_dynamic_tick -# define handle_dynamic_tick(a) do { } while (0) -#endif - #ifdef CONFIG_SMP -#if defined(CONFIG_GENERIC_PENDING_IRQ) || defined(CONFIG_IRQBALANCE) +#ifdef CONFIG_GENERIC_PENDING_IRQ void set_pending_irq(unsigned int irq, cpumask_t mask); void move_native_irq(int irq); void move_masked_irq(int irq); -#else /* CONFIG_GENERIC_PENDING_IRQ || CONFIG_IRQBALANCE */ +#else /* CONFIG_GENERIC_PENDING_IRQ */ static inline void move_irq(int irq) { @@ -237,19 +241,14 @@ static inline void set_pending_irq(unsigned int irq, cpumask_t mask) #endif /* CONFIG_SMP */ -#ifdef CONFIG_IRQBALANCE -extern void set_balance_irq_affinity(unsigned int irq, cpumask_t mask); -#else -static inline void set_balance_irq_affinity(unsigned int irq, cpumask_t mask) -{ -} -#endif - extern int no_irq_affinity; static inline int irq_balancing_disabled(unsigned int irq) { - return irq_desc[irq].status & IRQ_NO_BALANCING_MASK; + struct irq_desc *desc; + + desc = irq_to_desc(irq); + return desc->status & IRQ_NO_BALANCING_MASK; } /* Handle irq action chains: */ @@ -279,10 +278,8 @@ extern unsigned int __do_IRQ(unsigned int irq); * irqchip-style controller then we call the ->handle_irq() handler, * and it calls __do_IRQ() if it's attached to an irqtype-style controller. */ -static inline void generic_handle_irq(unsigned int irq) +static inline void generic_handle_irq_desc(unsigned int irq, struct irq_desc *desc) { - struct irq_desc *desc = irq_desc + irq; - #ifdef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ desc->handle_irq(irq, desc); #else @@ -293,6 +290,11 @@ static inline void generic_handle_irq(unsigned int irq) #endif } +static inline void generic_handle_irq(unsigned int irq) +{ + generic_handle_irq_desc(irq, irq_to_desc(irq)); +} + /* Handling of unhandled and spurious interrupts: */ extern void note_interrupt(unsigned int irq, struct irq_desc *desc, int action_ret); @@ -325,7 +327,10 @@ __set_irq_handler(unsigned int irq, irq_flow_handler_t handle, int is_chained, static inline void __set_irq_handler_unlocked(int irq, irq_flow_handler_t handler) { - irq_desc[irq].handle_irq = handler; + struct irq_desc *desc; + + desc = irq_to_desc(irq); + desc->handle_irq = handler; } /* @@ -353,13 +358,14 @@ extern void set_irq_noprobe(unsigned int irq); extern void set_irq_probe(unsigned int irq); /* Handle dynamic irq creation and destruction */ +extern unsigned int create_irq_nr(unsigned int irq_want); extern int create_irq(void); extern void destroy_irq(unsigned int irq); /* Test to see if a driver has successfully requested an irq */ static inline int irq_has_action(unsigned int irq) { - struct irq_desc *desc = irq_desc + irq; + struct irq_desc *desc = irq_to_desc(irq); return desc->action != NULL; } @@ -374,10 +380,10 @@ extern int set_irq_chip_data(unsigned int irq, void *data); extern int set_irq_type(unsigned int irq, unsigned int type); extern int set_irq_msi(unsigned int irq, struct msi_desc *entry); -#define get_irq_chip(irq) (irq_desc[irq].chip) -#define get_irq_chip_data(irq) (irq_desc[irq].chip_data) -#define get_irq_data(irq) (irq_desc[irq].handler_data) -#define get_irq_msi(irq) (irq_desc[irq].msi_desc) +#define get_irq_chip(irq) (irq_to_desc(irq)->chip) +#define get_irq_chip_data(irq) (irq_to_desc(irq)->chip_data) +#define get_irq_data(irq) (irq_to_desc(irq)->handler_data) +#define get_irq_msi(irq) (irq_to_desc(irq)->msi_desc) #endif /* CONFIG_GENERIC_HARDIRQS */ diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h new file mode 100644 index 000000000000..452c280c8115 --- /dev/null +++ b/include/linux/irqnr.h @@ -0,0 +1,24 @@ +#ifndef _LINUX_IRQNR_H +#define _LINUX_IRQNR_H + +#ifndef CONFIG_GENERIC_HARDIRQS +#include <asm/irq.h> +# define nr_irqs NR_IRQS + +# define for_each_irq_desc(irq, desc) \ + for (irq = 0; irq < nr_irqs; irq++) +#else +extern int nr_irqs; + +# define for_each_irq_desc(irq, desc) \ + for (irq = 0, desc = irq_desc; irq < nr_irqs; irq++, desc++) + +# define for_each_irq_desc_reverse(irq, desc) \ + for (irq = nr_irqs - 1, desc = irq_desc + (nr_irqs - 1); \ + irq >= 0; irq--, desc--) +#endif + +#define for_each_irq_nr(irq) \ + for (irq = 0; irq < nr_irqs; irq++) + +#endif diff --git a/include/linux/jbd.h b/include/linux/jbd.h index 7ebbcb1c9ba4..346e2b80be7d 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -816,6 +816,9 @@ struct journal_s #define JFS_FLUSHED 0x008 /* The journal superblock has been flushed */ #define JFS_LOADED 0x010 /* The journal superblock has been loaded */ #define JFS_BARRIER 0x020 /* Use IDE barriers */ +#define JFS_ABORT_ON_SYNCDATA_ERR 0x040 /* Abort the journal on file + * data write error in ordered + * mode */ /* * Function declarations for the journaling transaction and buffer @@ -908,7 +911,7 @@ extern int journal_set_features (journal_t *, unsigned long, unsigned long, unsigned long); extern int journal_create (journal_t *); extern int journal_load (journal_t *journal); -extern void journal_destroy (journal_t *); +extern int journal_destroy (journal_t *); extern int journal_recover (journal_t *journal); extern int journal_wipe (journal_t *, int); extern int journal_skip_recovery (journal_t *); diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h index 463d6f10b64f..c7d106ef22e2 100644 --- a/include/linux/jbd2.h +++ b/include/linux/jbd2.h @@ -641,6 +641,11 @@ struct transaction_s */ int t_handle_count; + /* + * For use by the filesystem to store fs-specific data + * structures associated with the transaction + */ + struct list_head t_private_list; }; struct transaction_run_stats_s { @@ -935,6 +940,10 @@ struct journal_s pid_t j_last_sync_writer; + /* This function is called when a transaction is closed */ + void (*j_commit_callback)(journal_t *, + transaction_t *); + /* * Journal statistics */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 6803318fa2ea..396a350b87a6 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -191,6 +191,30 @@ extern int kernel_text_address(unsigned long addr); struct pid; extern struct pid *session_of_pgrp(struct pid *pgrp); +/* + * FW_BUG + * Add this to a message where you are sure the firmware is buggy or behaves + * really stupid or out of spec. Be aware that the responsible BIOS developer + * should be able to fix this issue or at least get a concrete idea of the + * problem by reading your message without the need of looking at the kernel + * code. + * + * Use it for definite and high priority BIOS bugs. + * + * FW_WARN + * Use it for not that clear (e.g. could the kernel messed up things already?) + * and medium priority BIOS bugs. + * + * FW_INFO + * Use this one if you want to tell the user or vendor about something + * suspicious, but generally harmless related to the firmware. + * + * Use it for information or very low priority BIOS bugs. + */ +#define FW_BUG "[Firmware Bug]: " +#define FW_WARN "[Firmware Warn]: " +#define FW_INFO "[Firmware Info]: " + #ifdef CONFIG_PRINTK asmlinkage int vprintk(const char *fmt, va_list args) __attribute__ ((format (printf, 1, 0))); @@ -265,6 +289,7 @@ extern enum system_states { #define TAINT_DIE 7 #define TAINT_OVERRIDDEN_ACPI_TABLE 8 #define TAINT_WARN 9 +#define TAINT_CRAP 10 extern void dump_stack(void) __cold; @@ -495,4 +520,9 @@ struct sysinfo { #define NUMA_BUILD 0 #endif +/* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ +#ifdef CONFIG_FTRACE_MCOUNT_RECORD +# define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD +#endif + #endif diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h index cf9f40a91c9c..4a145caeee07 100644 --- a/include/linux/kernel_stat.h +++ b/include/linux/kernel_stat.h @@ -39,19 +39,34 @@ DECLARE_PER_CPU(struct kernel_stat, kstat); extern unsigned long long nr_context_switches(void); +struct irq_desc; + +static inline void kstat_incr_irqs_this_cpu(unsigned int irq, + struct irq_desc *desc) +{ + kstat_this_cpu.irqs[irq]++; +} + +static inline unsigned int kstat_irqs_cpu(unsigned int irq, int cpu) +{ + return kstat_cpu(cpu).irqs[irq]; +} + /* * Number of interrupts per specific IRQ source, since bootup */ -static inline int kstat_irqs(int irq) +static inline unsigned int kstat_irqs(unsigned int irq) { - int cpu, sum = 0; + unsigned int sum = 0; + int cpu; for_each_possible_cpu(cpu) - sum += kstat_cpu(cpu).irqs[irq]; + sum += kstat_irqs_cpu(irq, cpu); return sum; } +extern unsigned long long task_delta_exec(struct task_struct *); extern void account_user_time(struct task_struct *, cputime_t); extern void account_user_time_scaled(struct task_struct *, cputime_t); extern void account_system_time(struct task_struct *, int, cputime_t); diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 0be7795655fa..497b1d1f7a05 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -29,6 +29,7 @@ * <jkenisto@us.ibm.com> and Prasanna S Panchamukhi * <prasanna@in.ibm.com> added function-return probes. */ +#include <linux/linkage.h> #include <linux/list.h> #include <linux/notifier.h> #include <linux/smp.h> @@ -47,7 +48,7 @@ #define KPROBE_HIT_SSDONE 0x00000008 /* Attach to insert probes on any functions which should be ignored*/ -#define __kprobes __attribute__((__section__(".kprobes.text"))) +#define __kprobes __attribute__((__section__(".kprobes.text"))) notrace struct kprobe; struct pt_regs; @@ -256,7 +257,7 @@ void recycle_rp_inst(struct kretprobe_instance *ri, struct hlist_head *head); #else /* CONFIG_KPROBES */ -#define __kprobes /**/ +#define __kprobes notrace struct jprobe; struct kretprobe; diff --git a/include/linux/leds.h b/include/linux/leds.h index d41ccb56146a..d3a73f5a48c3 100644 --- a/include/linux/leds.h +++ b/include/linux/leds.h @@ -123,7 +123,7 @@ extern void ledtrig_ide_activity(void); */ struct led_info { const char *name; - char *default_trigger; + const char *default_trigger; int flags; }; @@ -135,7 +135,7 @@ struct led_platform_data { /* For the leds-gpio driver */ struct gpio_led { const char *name; - char *default_trigger; + const char *default_trigger; unsigned gpio; u8 active_low; }; diff --git a/include/linux/libata.h b/include/linux/libata.h index 947cf84e555d..507f53ef8038 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -340,6 +340,9 @@ enum { ATA_EHI_DID_RESET = ATA_EHI_DID_SOFTRESET | ATA_EHI_DID_HARDRESET, + /* mask of flags to transfer *to* the slave link */ + ATA_EHI_TO_SLAVE_MASK = ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, + /* max tries if error condition is still set after ->error_handler */ ATA_EH_MAX_TRIES = 5, @@ -692,7 +695,6 @@ struct ata_port { unsigned int cbl; /* cable type; ATA_CBL_xxx */ struct ata_queued_cmd qcmd[ATA_MAX_QUEUE]; - unsigned long qc_allocated; unsigned int qc_active; int nr_active_links; /* #links with active qcs */ diff --git a/include/linux/linkage.h b/include/linux/linkage.h index 56ba37394656..9fd1f859021b 100644 --- a/include/linux/linkage.h +++ b/include/linux/linkage.h @@ -4,8 +4,6 @@ #include <linux/compiler.h> #include <asm/linkage.h> -#define notrace __attribute__((no_instrument_function)) - #ifdef __cplusplus #define CPP_ASMLINKAGE extern "C" #else diff --git a/include/linux/marker.h b/include/linux/marker.h index 1290653f9241..889196c7fbb1 100644 --- a/include/linux/marker.h +++ b/include/linux/marker.h @@ -160,4 +160,11 @@ extern int marker_probe_unregister_private_data(marker_probe_func *probe, extern void *marker_get_private_data(const char *name, marker_probe_func *probe, int num); +/* + * marker_synchronize_unregister must be called between the last marker probe + * unregistration and the end of module exit to make sure there is no caller + * executing a probe when it is freed. + */ +#define marker_synchronize_unregister() synchronize_sched() + #endif diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index fdf3967e1397..1fbe14d39521 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -27,16 +27,13 @@ struct mm_struct; #ifdef CONFIG_CGROUP_MEM_RES_CTLR -#define page_reset_bad_cgroup(page) ((page)->page_cgroup = 0) - -extern struct page_cgroup *page_get_page_cgroup(struct page *page); extern int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); extern int mem_cgroup_cache_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask); +extern void mem_cgroup_move_lists(struct page *page, enum lru_list lru); extern void mem_cgroup_uncharge_page(struct page *page); extern void mem_cgroup_uncharge_cache_page(struct page *page); -extern void mem_cgroup_move_lists(struct page *page, bool active); extern int mem_cgroup_shrink_usage(struct mm_struct *mm, gfp_t gfp_mask); extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, @@ -44,7 +41,7 @@ extern unsigned long mem_cgroup_isolate_pages(unsigned long nr_to_scan, unsigned long *scanned, int order, int mode, struct zone *z, struct mem_cgroup *mem_cont, - int active); + int active, int file); 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); @@ -69,21 +66,11 @@ extern void mem_cgroup_note_reclaim_priority(struct mem_cgroup *mem, extern void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, int priority); -extern long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem, - struct zone *zone, int priority); -extern long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem, - struct zone *zone, int priority); - -#else /* CONFIG_CGROUP_MEM_RES_CTLR */ -static inline void page_reset_bad_cgroup(struct page *page) -{ -} +extern long mem_cgroup_calc_reclaim(struct mem_cgroup *mem, struct zone *zone, + int priority, enum lru_list lru); -static inline struct page_cgroup *page_get_page_cgroup(struct page *page) -{ - return NULL; -} +#else /* CONFIG_CGROUP_MEM_RES_CTLR */ static inline int mem_cgroup_charge(struct page *page, struct mm_struct *mm, gfp_t gfp_mask) { @@ -159,14 +146,9 @@ static inline void mem_cgroup_record_reclaim_priority(struct mem_cgroup *mem, { } -static inline long mem_cgroup_calc_reclaim_active(struct mem_cgroup *mem, - struct zone *zone, int priority) -{ - return 0; -} - -static inline long mem_cgroup_calc_reclaim_inactive(struct mem_cgroup *mem, - struct zone *zone, int priority) +static inline long mem_cgroup_calc_reclaim(struct mem_cgroup *mem, + struct zone *zone, int priority, + enum lru_list lru) { return 0; } diff --git a/include/linux/mfd/da903x.h b/include/linux/mfd/da903x.h new file mode 100644 index 000000000000..cad314c12439 --- /dev/null +++ b/include/linux/mfd/da903x.h @@ -0,0 +1,201 @@ +#ifndef __LINUX_PMIC_DA903X_H +#define __LINUX_PMIC_DA903X_H + +/* Unified sub device IDs for DA9030/DA9034 */ +enum { + DA9030_ID_LED_1, + DA9030_ID_LED_2, + DA9030_ID_LED_3, + DA9030_ID_LED_4, + DA9030_ID_LED_PC, + DA9030_ID_VIBRA, + DA9030_ID_WLED, + DA9030_ID_BUCK1, + DA9030_ID_BUCK2, + DA9030_ID_LDO1, + DA9030_ID_LDO2, + DA9030_ID_LDO3, + DA9030_ID_LDO4, + DA9030_ID_LDO5, + DA9030_ID_LDO6, + DA9030_ID_LDO7, + DA9030_ID_LDO8, + DA9030_ID_LDO9, + DA9030_ID_LDO10, + DA9030_ID_LDO11, + DA9030_ID_LDO12, + DA9030_ID_LDO13, + DA9030_ID_LDO14, + DA9030_ID_LDO15, + DA9030_ID_LDO16, + DA9030_ID_LDO17, + DA9030_ID_LDO18, + DA9030_ID_LDO19, + DA9030_ID_LDO_INT, /* LDO Internal */ + + DA9034_ID_LED_1, + DA9034_ID_LED_2, + DA9034_ID_VIBRA, + DA9034_ID_WLED, + DA9034_ID_TOUCH, + + DA9034_ID_BUCK1, + DA9034_ID_BUCK2, + DA9034_ID_LDO1, + DA9034_ID_LDO2, + DA9034_ID_LDO3, + DA9034_ID_LDO4, + DA9034_ID_LDO5, + DA9034_ID_LDO6, + DA9034_ID_LDO7, + DA9034_ID_LDO8, + DA9034_ID_LDO9, + DA9034_ID_LDO10, + DA9034_ID_LDO11, + DA9034_ID_LDO12, + DA9034_ID_LDO13, + DA9034_ID_LDO14, + DA9034_ID_LDO15, +}; + +/* + * DA9030/DA9034 LEDs sub-devices uses generic "struct led_info" + * as the platform_data + */ + +/* DA9030 flags for "struct led_info" + */ +#define DA9030_LED_RATE_ON (0 << 5) +#define DA9030_LED_RATE_052S (1 << 5) +#define DA9030_LED_DUTY_1_16 (0 << 3) +#define DA9030_LED_DUTY_1_8 (1 << 3) +#define DA9030_LED_DUTY_1_4 (2 << 3) +#define DA9030_LED_DUTY_1_2 (3 << 3) + +#define DA9030_VIBRA_MODE_1P3V (0 << 1) +#define DA9030_VIBRA_MODE_2P7V (1 << 1) +#define DA9030_VIBRA_FREQ_1HZ (0 << 2) +#define DA9030_VIBRA_FREQ_2HZ (1 << 2) +#define DA9030_VIBRA_FREQ_4HZ (2 << 2) +#define DA9030_VIBRA_FREQ_8HZ (3 << 2) +#define DA9030_VIBRA_DUTY_ON (0 << 4) +#define DA9030_VIBRA_DUTY_75P (1 << 4) +#define DA9030_VIBRA_DUTY_50P (2 << 4) +#define DA9030_VIBRA_DUTY_25P (3 << 4) + +/* DA9034 flags for "struct led_info" */ +#define DA9034_LED_RAMP (1 << 7) + +/* DA9034 touch screen platform data */ +struct da9034_touch_pdata { + int interval_ms; /* sampling interval while pen down */ + int x_inverted; + int y_inverted; +}; + +struct da903x_subdev_info { + int id; + const char *name; + void *platform_data; +}; + +struct da903x_platform_data { + int num_subdevs; + struct da903x_subdev_info *subdevs; +}; + +/* bit definitions for DA9030 events */ +#define DA9030_EVENT_ONKEY (1 << 0) +#define DA9030_EVENT_PWREN (1 << 1) +#define DA9030_EVENT_EXTON (1 << 2) +#define DA9030_EVENT_CHDET (1 << 3) +#define DA9030_EVENT_TBAT (1 << 4) +#define DA9030_EVENT_VBATMON (1 << 5) +#define DA9030_EVENT_VBATMON_TXON (1 << 6) +#define DA9030_EVENT_CHIOVER (1 << 7) +#define DA9030_EVENT_TCTO (1 << 8) +#define DA9030_EVENT_CCTO (1 << 9) +#define DA9030_EVENT_ADC_READY (1 << 10) +#define DA9030_EVENT_VBUS_4P4 (1 << 11) +#define DA9030_EVENT_VBUS_4P0 (1 << 12) +#define DA9030_EVENT_SESS_VALID (1 << 13) +#define DA9030_EVENT_SRP_DETECT (1 << 14) +#define DA9030_EVENT_WATCHDOG (1 << 15) +#define DA9030_EVENT_LDO15 (1 << 16) +#define DA9030_EVENT_LDO16 (1 << 17) +#define DA9030_EVENT_LDO17 (1 << 18) +#define DA9030_EVENT_LDO18 (1 << 19) +#define DA9030_EVENT_LDO19 (1 << 20) +#define DA9030_EVENT_BUCK2 (1 << 21) + +/* bit definitions for DA9034 events */ +#define DA9034_EVENT_ONKEY (1 << 0) +#define DA9034_EVENT_EXTON (1 << 2) +#define DA9034_EVENT_CHDET (1 << 3) +#define DA9034_EVENT_TBAT (1 << 4) +#define DA9034_EVENT_VBATMON (1 << 5) +#define DA9034_EVENT_REV_IOVER (1 << 6) +#define DA9034_EVENT_CH_IOVER (1 << 7) +#define DA9034_EVENT_CH_TCTO (1 << 8) +#define DA9034_EVENT_CH_CCTO (1 << 9) +#define DA9034_EVENT_USB_DEV (1 << 10) +#define DA9034_EVENT_OTGCP_IOVER (1 << 11) +#define DA9034_EVENT_VBUS_4P55 (1 << 12) +#define DA9034_EVENT_VBUS_3P8 (1 << 13) +#define DA9034_EVENT_SESS_1P8 (1 << 14) +#define DA9034_EVENT_SRP_READY (1 << 15) +#define DA9034_EVENT_ADC_MAN (1 << 16) +#define DA9034_EVENT_ADC_AUTO4 (1 << 17) +#define DA9034_EVENT_ADC_AUTO5 (1 << 18) +#define DA9034_EVENT_ADC_AUTO6 (1 << 19) +#define DA9034_EVENT_PEN_DOWN (1 << 20) +#define DA9034_EVENT_TSI_READY (1 << 21) +#define DA9034_EVENT_UART_TX (1 << 22) +#define DA9034_EVENT_UART_RX (1 << 23) +#define DA9034_EVENT_HEADSET (1 << 25) +#define DA9034_EVENT_HOOKSWITCH (1 << 26) +#define DA9034_EVENT_WATCHDOG (1 << 27) + +extern int da903x_register_notifier(struct device *dev, + struct notifier_block *nb, unsigned int events); +extern int da903x_unregister_notifier(struct device *dev, + struct notifier_block *nb, unsigned int events); + +/* Status Query Interface */ +#define DA9030_STATUS_ONKEY (1 << 0) +#define DA9030_STATUS_PWREN1 (1 << 1) +#define DA9030_STATUS_EXTON (1 << 2) +#define DA9030_STATUS_CHDET (1 << 3) +#define DA9030_STATUS_TBAT (1 << 4) +#define DA9030_STATUS_VBATMON (1 << 5) +#define DA9030_STATUS_VBATMON_TXON (1 << 6) +#define DA9030_STATUS_MCLKDET (1 << 7) + +#define DA9034_STATUS_ONKEY (1 << 0) +#define DA9034_STATUS_EXTON (1 << 2) +#define DA9034_STATUS_CHDET (1 << 3) +#define DA9034_STATUS_TBAT (1 << 4) +#define DA9034_STATUS_VBATMON (1 << 5) +#define DA9034_STATUS_PEN_DOWN (1 << 6) +#define DA9034_STATUS_MCLKDET (1 << 7) +#define DA9034_STATUS_USB_DEV (1 << 8) +#define DA9034_STATUS_HEADSET (1 << 9) +#define DA9034_STATUS_HOOKSWITCH (1 << 10) +#define DA9034_STATUS_REMCON (1 << 11) +#define DA9034_STATUS_VBUS_VALID_4P55 (1 << 12) +#define DA9034_STATUS_VBUS_VALID_3P8 (1 << 13) +#define DA9034_STATUS_SESS_VALID_1P8 (1 << 14) +#define DA9034_STATUS_SRP_READY (1 << 15) + +extern int da903x_query_status(struct device *dev, unsigned int status); + + +/* NOTE: the two functions below are not intended for use outside + * of the DA9034 sub-device drivers + */ +extern int da903x_write(struct device *dev, int reg, uint8_t val); +extern int da903x_read(struct device *dev, int reg, uint8_t *val); +extern int da903x_update(struct device *dev, int reg, uint8_t val, uint8_t mask); +extern int da903x_set_bits(struct device *dev, int reg, uint8_t bit_mask); +extern int da903x_clr_bits(struct device *dev, int reg, uint8_t bit_mask); +#endif /* __LINUX_PMIC_DA903X_H */ diff --git a/include/linux/mfd/t7l66xb.h b/include/linux/mfd/t7l66xb.h index e83c7f2036f9..b4629818aea5 100644 --- a/include/linux/mfd/t7l66xb.h +++ b/include/linux/mfd/t7l66xb.h @@ -15,8 +15,6 @@ #include <linux/mfd/tmio.h> struct t7l66xb_platform_data { - int (*enable_clk32k)(struct platform_device *dev); - void (*disable_clk32k)(struct platform_device *dev); int (*enable)(struct platform_device *dev); int (*disable)(struct platform_device *dev); int (*suspend)(struct platform_device *dev); diff --git a/include/linux/mfd/tc6387xb.h b/include/linux/mfd/tc6387xb.h index fa06e0610b8e..b4888209494a 100644 --- a/include/linux/mfd/tc6387xb.h +++ b/include/linux/mfd/tc6387xb.h @@ -11,9 +11,6 @@ #define MFD_TC6387XB_H struct tc6387xb_platform_data { - int (*enable_clk32k)(struct platform_device *dev); - void (*disable_clk32k)(struct platform_device *dev); - int (*enable)(struct platform_device *dev); int (*disable)(struct platform_device *dev); int (*suspend)(struct platform_device *dev); diff --git a/include/linux/mfd/tc6393xb.h b/include/linux/mfd/tc6393xb.h index fec7b3f7a81f..626e448205c5 100644 --- a/include/linux/mfd/tc6393xb.h +++ b/include/linux/mfd/tc6393xb.h @@ -17,12 +17,12 @@ #ifndef MFD_TC6393XB_H #define MFD_TC6393XB_H +#include <linux/fb.h> + /* Also one should provide the CK3P6MI clock */ struct tc6393xb_platform_data { u16 scr_pll2cr; /* PLL2 Control */ u16 scr_gper; /* GP Enable */ - u32 scr_gpo_doecr; /* GPO Data OE Control */ - u32 scr_gpo_dsr; /* GPO Data Set */ int (*enable)(struct platform_device *dev); int (*disable)(struct platform_device *dev); @@ -31,15 +31,28 @@ struct tc6393xb_platform_data { int irq_base; /* base for subdevice irqs */ int gpio_base; + int (*setup)(struct platform_device *dev); + void (*teardown)(struct platform_device *dev); struct tmio_nand_data *nand_data; + struct tmio_fb_data *fb_data; + + unsigned resume_restore : 1; /* make special actions + to preserve the state + on suspend/resume */ }; +extern int tc6393xb_lcd_mode(struct platform_device *fb, + const struct fb_videomode *mode); +extern int tc6393xb_lcd_set_power(struct platform_device *fb, bool on); + /* * Relative to irq_base */ #define IRQ_TC6393_NAND 0 #define IRQ_TC6393_MMC 1 +#define IRQ_TC6393_OHCI 2 +#define IRQ_TC6393_FB 4 #define TC6393XB_NR_IRQS 8 diff --git a/include/linux/migrate.h b/include/linux/migrate.h index 03aea612d284..3f34005068d4 100644 --- a/include/linux/migrate.h +++ b/include/linux/migrate.h @@ -7,7 +7,6 @@ typedef struct page *new_page_t(struct page *, unsigned long private, int **); #ifdef CONFIG_MIGRATION -extern int isolate_lru_page(struct page *p, struct list_head *pagelist); extern int putback_lru_pages(struct list_head *l); extern int migrate_page(struct address_space *, struct page *, struct page *); @@ -21,8 +20,6 @@ extern int migrate_vmas(struct mm_struct *mm, const nodemask_t *from, const nodemask_t *to, unsigned long flags); #else -static inline int isolate_lru_page(struct page *p, struct list_head *list) - { return -ENOSYS; } static inline int putback_lru_pages(struct list_head *l) { return 0; } static inline int migrate_pages(struct list_head *l, new_page_t x, unsigned long private) { return -ENOSYS; } diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h index 77323a72dd3c..cf9c679ab38b 100644 --- a/include/linux/mlx4/cmd.h +++ b/include/linux/mlx4/cmd.h @@ -132,6 +132,15 @@ enum { MLX4_MAILBOX_SIZE = 4096 }; +enum { + /* set port opcode modifiers */ + MLX4_SET_PORT_GENERAL = 0x0, + MLX4_SET_PORT_RQP_CALC = 0x1, + MLX4_SET_PORT_MAC_TABLE = 0x2, + MLX4_SET_PORT_VLAN_TABLE = 0x3, + MLX4_SET_PORT_PRIO_MAP = 0x4, +}; + struct mlx4_dev; struct mlx4_cmd_mailbox { diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index b2f944468313..bd9977b89490 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -60,6 +60,7 @@ enum { MLX4_DEV_CAP_FLAG_IPOIB_CSUM = 1 << 7, MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR = 1 << 8, MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR = 1 << 9, + MLX4_DEV_CAP_FLAG_DPDP = 1 << 12, MLX4_DEV_CAP_FLAG_MEM_WINDOW = 1 << 16, MLX4_DEV_CAP_FLAG_APM = 1 << 17, MLX4_DEV_CAP_FLAG_ATOMIC = 1 << 18, @@ -145,6 +146,29 @@ enum { MLX4_MTT_FLAG_PRESENT = 1 }; +enum mlx4_qp_region { + MLX4_QP_REGION_FW = 0, + MLX4_QP_REGION_ETH_ADDR, + MLX4_QP_REGION_FC_ADDR, + MLX4_QP_REGION_FC_EXCH, + MLX4_NUM_QP_REGION +}; + +enum mlx4_port_type { + MLX4_PORT_TYPE_IB = 1 << 0, + MLX4_PORT_TYPE_ETH = 1 << 1, +}; + +enum mlx4_special_vlan_idx { + MLX4_NO_VLAN_IDX = 0, + MLX4_VLAN_MISS_IDX, + MLX4_VLAN_REGULAR +}; + +enum { + MLX4_NUM_FEXCH = 64 * 1024, +}; + static inline u64 mlx4_fw_ver(u64 major, u64 minor, u64 subminor) { return (major << 32) | (minor << 16) | subminor; @@ -154,7 +178,9 @@ struct mlx4_caps { u64 fw_ver; int num_ports; int vl_cap[MLX4_MAX_PORTS + 1]; - int mtu_cap[MLX4_MAX_PORTS + 1]; + int ib_mtu_cap[MLX4_MAX_PORTS + 1]; + u64 def_mac[MLX4_MAX_PORTS + 1]; + int eth_mtu_cap[MLX4_MAX_PORTS + 1]; int gid_table_len[MLX4_MAX_PORTS + 1]; int pkey_table_len[MLX4_MAX_PORTS + 1]; int local_ca_ack_delay; @@ -169,7 +195,6 @@ struct mlx4_caps { int max_rq_desc_sz; int max_qp_init_rdma; int max_qp_dest_rdma; - int reserved_qps; int sqp_start; int num_srqs; int max_srq_wqes; @@ -201,6 +226,15 @@ struct mlx4_caps { u16 stat_rate_support; u8 port_width_cap[MLX4_MAX_PORTS + 1]; int max_gso_sz; + int reserved_qps_cnt[MLX4_NUM_QP_REGION]; + int reserved_qps; + int reserved_qps_base[MLX4_NUM_QP_REGION]; + int log_num_macs; + int log_num_vlans; + int log_num_prios; + enum mlx4_port_type port_type[MLX4_MAX_PORTS + 1]; + u8 supported_type[MLX4_MAX_PORTS + 1]; + u32 port_mask; }; struct mlx4_buf_list { @@ -355,6 +389,11 @@ struct mlx4_init_port_param { u64 si_guid; }; +#define mlx4_foreach_port(port, dev, type) \ + for ((port) = 1; (port) <= (dev)->caps.num_ports; (port)++) \ + if (((type) == MLX4_PORT_TYPE_IB ? (dev)->caps.port_mask : \ + ~(dev)->caps.port_mask) & 1 << ((port) - 1)) + int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct, struct mlx4_buf *buf); void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf); @@ -400,7 +439,10 @@ int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt, int collapsed); void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq); -int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp); +int mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, int *base); +void mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt); + +int mlx4_qp_alloc(struct mlx4_dev *dev, int qpn, struct mlx4_qp *qp); void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp); int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt, @@ -416,6 +458,12 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16], int block_mcast_loopback); int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16]); +int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *index); +void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, int index); + +int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index); +void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index); + int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list, int npages, u64 iova, u32 *lkey, u32 *rkey); int mlx4_fmr_alloc(struct mlx4_dev *dev, u32 pd, u32 access, int max_pages, diff --git a/include/linux/mm.h b/include/linux/mm.h index c61ba10768ea..ffee2f743418 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -132,6 +132,11 @@ extern unsigned int kobjsize(const void *objp); #define VM_RandomReadHint(v) ((v)->vm_flags & VM_RAND_READ) /* + * special vmas that are non-mergable, non-mlock()able + */ +#define VM_SPECIAL (VM_IO | VM_DONTEXPAND | VM_RESERVED | VM_PFNMAP) + +/* * mapping from the currently active vm_flags protection bits (the * low four bits) to a page protection mask.. */ @@ -700,10 +705,10 @@ static inline int page_mapped(struct page *page) extern void show_free_areas(void); #ifdef CONFIG_SHMEM -int shmem_lock(struct file *file, int lock, struct user_struct *user); +extern int shmem_lock(struct file *file, int lock, struct user_struct *user); #else static inline int shmem_lock(struct file *file, int lock, - struct user_struct *user) + struct user_struct *user) { return 0; } diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index 895bc4e93039..c948350c378e 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -1,40 +1,100 @@ -static inline void -add_page_to_active_list(struct zone *zone, struct page *page) -{ - list_add(&page->lru, &zone->active_list); - __inc_zone_state(zone, NR_ACTIVE); -} +#ifndef LINUX_MM_INLINE_H +#define LINUX_MM_INLINE_H -static inline void -add_page_to_inactive_list(struct zone *zone, struct page *page) +/** + * page_is_file_cache - should the page be on a file LRU or anon LRU? + * @page: the page to test + * + * Returns LRU_FILE if @page is page cache page backed by a regular filesystem, + * or 0 if @page is anonymous, tmpfs or otherwise ram or swap backed. + * Used by functions that manipulate the LRU lists, to sort a page + * onto the right LRU list. + * + * We would like to get this info without a page flag, but the state + * needs to survive until the page is last deleted from the LRU, which + * could be as far down as __page_cache_release. + */ +static inline int page_is_file_cache(struct page *page) { - list_add(&page->lru, &zone->inactive_list); - __inc_zone_state(zone, NR_INACTIVE); + if (PageSwapBacked(page)) + return 0; + + /* The page is page cache backed by a normal filesystem. */ + return LRU_FILE; } static inline void -del_page_from_active_list(struct zone *zone, struct page *page) +add_page_to_lru_list(struct zone *zone, struct page *page, enum lru_list l) { - list_del(&page->lru); - __dec_zone_state(zone, NR_ACTIVE); + list_add(&page->lru, &zone->lru[l].list); + __inc_zone_state(zone, NR_LRU_BASE + l); } static inline void -del_page_from_inactive_list(struct zone *zone, struct page *page) +del_page_from_lru_list(struct zone *zone, struct page *page, enum lru_list l) { list_del(&page->lru); - __dec_zone_state(zone, NR_INACTIVE); + __dec_zone_state(zone, NR_LRU_BASE + l); } static inline void del_page_from_lru(struct zone *zone, struct page *page) { + enum lru_list l = LRU_BASE; + list_del(&page->lru); - if (PageActive(page)) { - __ClearPageActive(page); - __dec_zone_state(zone, NR_ACTIVE); + if (PageUnevictable(page)) { + __ClearPageUnevictable(page); + l = LRU_UNEVICTABLE; } else { - __dec_zone_state(zone, NR_INACTIVE); + if (PageActive(page)) { + __ClearPageActive(page); + l += LRU_ACTIVE; + } + l += page_is_file_cache(page); + } + __dec_zone_state(zone, NR_LRU_BASE + l); +} + +/** + * page_lru - which LRU list should a page be on? + * @page: the page to test + * + * Returns the LRU list a page should be on, as an index + * into the array of LRU lists. + */ +static inline enum lru_list page_lru(struct page *page) +{ + enum lru_list lru = LRU_BASE; + + if (PageUnevictable(page)) + lru = LRU_UNEVICTABLE; + else { + if (PageActive(page)) + lru += LRU_ACTIVE; + lru += page_is_file_cache(page); } + + return lru; } +/** + * inactive_anon_is_low - check if anonymous pages need to be deactivated + * @zone: zone to check + * + * Returns true if the zone does not have enough inactive anon pages, + * meaning some active anon pages need to be deactivated. + */ +static inline int inactive_anon_is_low(struct zone *zone) +{ + unsigned long active, inactive; + + active = zone_page_state(zone, NR_ACTIVE_ANON); + inactive = zone_page_state(zone, NR_INACTIVE_ANON); + + if (inactive * zone->inactive_ratio < active) + return 1; + + return 0; +} +#endif diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 9d49fa36bbef..fe825471d5aa 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -94,9 +94,6 @@ struct page { void *virtual; /* Kernel virtual address (NULL if not kmapped, ie. highmem) */ #endif /* WANT_PAGE_VIRTUAL */ -#ifdef CONFIG_CGROUP_MEM_RES_CTLR - unsigned long page_cgroup; -#endif }; /* diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h index 61d19e1b7a0b..139d7c88d9c9 100644 --- a/include/linux/mmiotrace.h +++ b/include/linux/mmiotrace.h @@ -34,11 +34,15 @@ extern void unregister_kmmio_probe(struct kmmio_probe *p); /* Called from page fault handler. */ extern int kmmio_handler(struct pt_regs *regs, unsigned long addr); -/* Called from ioremap.c */ #ifdef CONFIG_MMIOTRACE +/* Called from ioremap.c */ extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size, void __iomem *addr); extern void mmiotrace_iounmap(volatile void __iomem *addr); + +/* For anyone to insert markers. Remember trailing newline. */ +extern int mmiotrace_printk(const char *fmt, ...) + __attribute__ ((format (printf, 1, 2))); #else static inline void mmiotrace_ioremap(resource_size_t offset, unsigned long size, void __iomem *addr) @@ -48,15 +52,22 @@ static inline void mmiotrace_ioremap(resource_size_t offset, static inline void mmiotrace_iounmap(volatile void __iomem *addr) { } -#endif /* CONFIG_MMIOTRACE_HOOKS */ + +static inline int mmiotrace_printk(const char *fmt, ...) + __attribute__ ((format (printf, 1, 0))); + +static inline int mmiotrace_printk(const char *fmt, ...) +{ + return 0; +} +#endif /* CONFIG_MMIOTRACE */ enum mm_io_opcode { MMIO_READ = 0x1, /* struct mmiotrace_rw */ MMIO_WRITE = 0x2, /* struct mmiotrace_rw */ MMIO_PROBE = 0x3, /* struct mmiotrace_map */ MMIO_UNPROBE = 0x4, /* struct mmiotrace_map */ - MMIO_MARKER = 0x5, /* raw char data */ - MMIO_UNKNOWN_OP = 0x6, /* struct mmiotrace_rw */ + MMIO_UNKNOWN_OP = 0x5, /* struct mmiotrace_rw */ }; struct mmiotrace_rw { @@ -81,5 +92,6 @@ extern void enable_mmiotrace(void); extern void disable_mmiotrace(void); extern void mmio_trace_rw(struct mmiotrace_rw *rw); extern void mmio_trace_mapping(struct mmiotrace_map *map); +extern int mmio_trace_printk(const char *fmt, va_list args); #endif /* MMIOTRACE_H */ diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 428328a05fa1..35a7b5e19465 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -81,21 +81,31 @@ struct zone_padding { enum zone_stat_item { /* First 128 byte cacheline (assuming 64 bit words) */ NR_FREE_PAGES, - NR_INACTIVE, - NR_ACTIVE, + NR_LRU_BASE, + NR_INACTIVE_ANON = NR_LRU_BASE, /* must match order of LRU_[IN]ACTIVE */ + NR_ACTIVE_ANON, /* " " " " " */ + NR_INACTIVE_FILE, /* " " " " " */ + NR_ACTIVE_FILE, /* " " " " " */ +#ifdef CONFIG_UNEVICTABLE_LRU + NR_UNEVICTABLE, /* " " " " " */ + NR_MLOCK, /* mlock()ed pages found and moved off LRU */ +#else + NR_UNEVICTABLE = NR_ACTIVE_FILE, /* avoid compiler errors in dead code */ + NR_MLOCK = NR_ACTIVE_FILE, +#endif NR_ANON_PAGES, /* Mapped anonymous pages */ NR_FILE_MAPPED, /* pagecache pages mapped into pagetables. only modified from process context */ NR_FILE_PAGES, NR_FILE_DIRTY, NR_WRITEBACK, - /* Second 128 byte cacheline */ NR_SLAB_RECLAIMABLE, NR_SLAB_UNRECLAIMABLE, NR_PAGETABLE, /* used for pagetables */ NR_UNSTABLE_NFS, /* NFS unstable pages */ NR_BOUNCE, NR_VMSCAN_WRITE, + /* Second 128 byte cacheline */ NR_WRITEBACK_TEMP, /* Writeback using temporary buffers */ #ifdef CONFIG_NUMA NUMA_HIT, /* allocated in intended node */ @@ -107,6 +117,55 @@ enum zone_stat_item { #endif NR_VM_ZONE_STAT_ITEMS }; +/* + * We do arithmetic on the LRU lists in various places in the code, + * so it is important to keep the active lists LRU_ACTIVE higher in + * the array than the corresponding inactive lists, and to keep + * the *_FILE lists LRU_FILE higher than the corresponding _ANON lists. + * + * This has to be kept in sync with the statistics in zone_stat_item + * above and the descriptions in vmstat_text in mm/vmstat.c + */ +#define LRU_BASE 0 +#define LRU_ACTIVE 1 +#define LRU_FILE 2 + +enum lru_list { + LRU_INACTIVE_ANON = LRU_BASE, + LRU_ACTIVE_ANON = LRU_BASE + LRU_ACTIVE, + LRU_INACTIVE_FILE = LRU_BASE + LRU_FILE, + LRU_ACTIVE_FILE = LRU_BASE + LRU_FILE + LRU_ACTIVE, +#ifdef CONFIG_UNEVICTABLE_LRU + LRU_UNEVICTABLE, +#else + LRU_UNEVICTABLE = LRU_ACTIVE_FILE, /* avoid compiler errors in dead code */ +#endif + NR_LRU_LISTS +}; + +#define for_each_lru(l) for (l = 0; l < NR_LRU_LISTS; l++) + +#define for_each_evictable_lru(l) for (l = 0; l <= LRU_ACTIVE_FILE; l++) + +static inline int is_file_lru(enum lru_list l) +{ + return (l == LRU_INACTIVE_FILE || l == LRU_ACTIVE_FILE); +} + +static inline int is_active_lru(enum lru_list l) +{ + return (l == LRU_ACTIVE_ANON || l == LRU_ACTIVE_FILE); +} + +static inline int is_unevictable_lru(enum lru_list l) +{ +#ifdef CONFIG_UNEVICTABLE_LRU + return (l == LRU_UNEVICTABLE); +#else + return 0; +#endif +} + struct per_cpu_pages { int count; /* number of pages in the list */ int high; /* high watermark, emptying needed */ @@ -251,10 +310,22 @@ struct zone { /* Fields commonly accessed by the page reclaim scanner */ spinlock_t lru_lock; - struct list_head active_list; - struct list_head inactive_list; - unsigned long nr_scan_active; - unsigned long nr_scan_inactive; + struct { + struct list_head list; + unsigned long nr_scan; + } lru[NR_LRU_LISTS]; + + /* + * The pageout code in vmscan.c keeps track of how many of the + * mem/swap backed and file backed pages are refeferenced. + * The higher the rotated/scanned ratio, the more valuable + * that cache is. + * + * The anon LRU stats live in [0], file LRU stats in [1] + */ + unsigned long recent_rotated[2]; + unsigned long recent_scanned[2]; + unsigned long pages_scanned; /* since last reclaim */ unsigned long flags; /* zone flags, see below */ @@ -276,6 +347,12 @@ struct zone { */ int prev_priority; + /* + * The target ratio of ACTIVE_ANON to INACTIVE_ANON pages on + * this zone's LRU. Maintained by the pageout code. + */ + unsigned int inactive_ratio; + ZONE_PADDING(_pad2_) /* Rarely used or read-mostly fields */ @@ -524,8 +601,11 @@ typedef struct pglist_data { struct zone node_zones[MAX_NR_ZONES]; struct zonelist node_zonelists[MAX_ZONELISTS]; int nr_zones; -#ifdef CONFIG_FLAT_NODE_MEM_MAP +#ifdef CONFIG_FLAT_NODE_MEM_MAP /* means !SPARSEMEM */ struct page *node_mem_map; +#ifdef CONFIG_CGROUP_MEM_RES_CTLR + struct page_cgroup *node_page_cgroup; +#endif #endif struct bootmem_data *bdata; #ifdef CONFIG_MEMORY_HOTPLUG @@ -854,6 +934,7 @@ static inline unsigned long early_pfn_to_nid(unsigned long pfn) #endif struct page; +struct page_cgroup; struct mem_section { /* * This is, logically, a pointer to an array of struct @@ -871,6 +952,14 @@ struct mem_section { /* See declaration of similar field in struct zone */ unsigned long *pageblock_flags; +#ifdef CONFIG_CGROUP_MEM_RES_CTLR + /* + * If !SPARSEMEM, pgdat doesn't have page_cgroup pointer. We use + * section. (see memcontrol.h/page_cgroup.h about this.) + */ + struct page_cgroup *page_cgroup; + unsigned long pad; +#endif }; #ifdef CONFIG_SPARSEMEM_EXTREME diff --git a/include/linux/module.h b/include/linux/module.h index a41555cbe00a..3bfed013350b 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -16,6 +16,7 @@ #include <linux/kobject.h> #include <linux/moduleparam.h> #include <linux/marker.h> +#include <linux/tracepoint.h> #include <asm/local.h> #include <asm/module.h> @@ -28,7 +29,7 @@ #define MODULE_SYMBOL_PREFIX "" #endif -#define MODULE_NAME_LEN (64 - sizeof(unsigned long)) +#define MODULE_NAME_LEN MAX_PARAM_PREFIX_LEN struct kernel_symbol { @@ -59,6 +60,7 @@ struct module_kobject struct kobject kobj; struct module *mod; struct kobject *drivers_dir; + struct module_param_attrs *mp; }; /* These are either module local, or the kernel's dummy ones. */ @@ -241,7 +243,6 @@ struct module /* Sysfs stuff. */ struct module_kobject mkobj; - struct module_param_attrs *param_attrs; struct module_attribute *modinfo_attrs; const char *version; const char *srcversion; @@ -276,7 +277,7 @@ struct module /* Exception table */ unsigned int num_exentries; - const struct exception_table_entry *extable; + struct exception_table_entry *extable; /* Startup function. */ int (*init)(void); @@ -331,6 +332,10 @@ struct module struct marker *markers; unsigned int num_markers; #endif +#ifdef CONFIG_TRACEPOINTS + struct tracepoint *tracepoints; + unsigned int num_tracepoints; +#endif #ifdef CONFIG_MODULE_UNLOAD /* What modules depend on me? */ @@ -453,6 +458,9 @@ extern void print_modules(void); extern void module_update_markers(void); +extern void module_update_tracepoints(void); +extern int module_get_iter_tracepoints(struct tracepoint_iter *iter); + #else /* !CONFIG_MODULES... */ #define EXPORT_SYMBOL(sym) #define EXPORT_SYMBOL_GPL(sym) @@ -557,6 +565,15 @@ static inline void module_update_markers(void) { } +static inline void module_update_tracepoints(void) +{ +} + +static inline int module_get_iter_tracepoints(struct tracepoint_iter *iter) +{ + return 0; +} + #endif /* CONFIG_MODULES */ struct device_driver; diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h index ec624381c844..e4af3399ef48 100644 --- a/include/linux/moduleparam.h +++ b/include/linux/moduleparam.h @@ -13,6 +13,9 @@ #define MODULE_PARAM_PREFIX KBUILD_MODNAME "." #endif +/* Chosen so that structs with an unsigned long line up. */ +#define MAX_PARAM_PREFIX_LEN (64 - sizeof(unsigned long)) + #ifdef MODULE #define ___module_cat(a,b) __mod_ ## a ## b #define __module_cat(a,b) ___module_cat(a,b) @@ -79,7 +82,8 @@ struct kparam_array #define __module_param_call(prefix, name, set, get, arg, perm) \ /* Default value instead of permissions? */ \ static int __param_perm_check_##name __attribute__((unused)) = \ - BUILD_BUG_ON_ZERO((perm) < 0 || (perm) > 0777 || ((perm) & 2)); \ + BUILD_BUG_ON_ZERO((perm) < 0 || (perm) > 0777 || ((perm) & 2)) \ + + BUILD_BUG_ON_ZERO(sizeof(""prefix) > MAX_PARAM_PREFIX_LEN); \ static const char __param_str_##name[] = prefix #name; \ static struct kernel_param __moduleparam_const __param_##name \ __used \ @@ -100,6 +104,25 @@ struct kparam_array #define module_param(name, type, perm) \ module_param_named(name, name, type, perm) +#ifndef MODULE +/** + * core_param - define a historical core kernel parameter. + * @name: the name of the cmdline and sysfs parameter (often the same as var) + * @var: the variable + * @type: the type (for param_set_##type and param_get_##type) + * @perm: visibility in sysfs + * + * core_param is just like module_param(), but cannot be modular and + * doesn't add a prefix (such as "printk."). This is for compatibility + * with __setup(), and it makes sense as truly core parameters aren't + * tied to the particular file they're in. + */ +#define core_param(name, var, type, perm) \ + param_check_##type(name, &(var)); \ + __module_param_call("", name, param_set_##type, param_get_##type, \ + &var, perm) +#endif /* !MODULE */ + /* Actually copy string: maxlen param is usually sizeof(string). */ #define module_param_string(name, string, len, perm) \ static const struct kparam_string __param_string_##name \ diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index d6fb115f5a07..ee5124ec319e 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -12,6 +12,7 @@ #include <linux/mtd/flashchip.h> #include <linux/mtd/map.h> #include <linux/mtd/cfi_endian.h> +#include <linux/mtd/xip.h> #ifdef CONFIG_MTD_CFI_I1 #define cfi_interleave(cfi) 1 @@ -430,7 +431,6 @@ static inline uint32_t cfi_send_gen_cmd(u_char cmd, uint32_t cmd_addr, uint32_t { map_word val; uint32_t addr = base + cfi_build_cmd_addr(cmd_addr, cfi_interleave(cfi), type); - val = cfi_build_cmd(cmd, map, cfi); if (prev_val) @@ -483,6 +483,13 @@ static inline void cfi_udelay(int us) } } +int __xipram cfi_qry_present(struct map_info *map, __u32 base, + struct cfi_private *cfi); +int __xipram cfi_qry_mode_on(uint32_t base, struct map_info *map, + struct cfi_private *cfi); +void __xipram cfi_qry_mode_off(uint32_t base, struct map_info *map, + struct cfi_private *cfi); + struct cfi_extquery *cfi_read_pri(struct map_info *map, uint16_t adr, uint16_t size, const char* name); struct cfi_fixup { diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h index 08dd131301c1..d4f38c5fd44e 100644 --- a/include/linux/mtd/flashchip.h +++ b/include/linux/mtd/flashchip.h @@ -73,6 +73,10 @@ struct flchip { int buffer_write_time; int erase_time; + int word_write_time_max; + int buffer_write_time_max; + int erase_time_max; + void *priv; }; diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 922636548558..eae26bb6430a 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -25,8 +25,10 @@ #define MTD_ERASE_DONE 0x08 #define MTD_ERASE_FAILED 0x10 +#define MTD_FAIL_ADDR_UNKNOWN 0xffffffff + /* If the erase fails, fail_addr might indicate exactly which block failed. If - fail_addr = 0xffffffff, the failure was not at the device level or was not + fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level or was not specific to any particular block. */ struct erase_info { struct mtd_info *mtd; diff --git a/include/linux/mtd/nand-gpio.h b/include/linux/mtd/nand-gpio.h new file mode 100644 index 000000000000..51534e50f7fc --- /dev/null +++ b/include/linux/mtd/nand-gpio.h @@ -0,0 +1,19 @@ +#ifndef __LINUX_MTD_NAND_GPIO_H +#define __LINUX_MTD_NAND_GPIO_H + +#include <linux/mtd/nand.h> + +struct gpio_nand_platdata { + int gpio_nce; + int gpio_nwp; + int gpio_cle; + int gpio_ale; + int gpio_rdy; + void (*adjust_parts)(struct gpio_nand_platdata *, size_t); + struct mtd_partition *parts; + unsigned int num_parts; + unsigned int options; + int chip_delay; +}; + +#endif diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 81774e5facf4..733d3f3b4eb8 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -248,6 +248,7 @@ struct nand_hw_control { * @read_page_raw: function to read a raw page without ECC * @write_page_raw: function to write a raw page without ECC * @read_page: function to read a page according to the ecc generator requirements + * @read_subpage: function to read parts of the page covered by ECC. * @write_page: function to write a page according to the ecc generator requirements * @read_oob: function to read chip OOB data * @write_oob: function to write chip OOB data diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h index d1b310c92eb4..0c6bbe28f38c 100644 --- a/include/linux/mtd/onenand_regs.h +++ b/include/linux/mtd/onenand_regs.h @@ -152,6 +152,8 @@ #define ONENAND_SYS_CFG1_INT (1 << 6) #define ONENAND_SYS_CFG1_IOBE (1 << 5) #define ONENAND_SYS_CFG1_RDY_CONF (1 << 4) +#define ONENAND_SYS_CFG1_HF (1 << 2) +#define ONENAND_SYS_CFG1_SYNC_WRITE (1 << 1) /* * Controller Status Register F240h (R) diff --git a/include/linux/mtd/partitions.h b/include/linux/mtd/partitions.h index 5014f7a9f5df..c92b4d439609 100644 --- a/include/linux/mtd/partitions.h +++ b/include/linux/mtd/partitions.h @@ -73,7 +73,6 @@ struct device; struct device_node; int __devinit of_mtd_parse_partitions(struct device *dev, - struct mtd_info *mtd, struct device_node *node, struct mtd_partition **pparts); diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h new file mode 100644 index 000000000000..e77c1cea404d --- /dev/null +++ b/include/linux/mtd/sh_flctl.h @@ -0,0 +1,125 @@ +/* + * SuperH FLCTL nand controller + * + * Copyright © 2008 Renesas Solutions Corp. + * + * 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 of the License. + * + * 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 __SH_FLCTL_H__ +#define __SH_FLCTL_H__ + +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/partitions.h> + +/* FLCTL registers */ +#define FLCMNCR(f) (f->reg + 0x0) +#define FLCMDCR(f) (f->reg + 0x4) +#define FLCMCDR(f) (f->reg + 0x8) +#define FLADR(f) (f->reg + 0xC) +#define FLADR2(f) (f->reg + 0x3C) +#define FLDATAR(f) (f->reg + 0x10) +#define FLDTCNTR(f) (f->reg + 0x14) +#define FLINTDMACR(f) (f->reg + 0x18) +#define FLBSYTMR(f) (f->reg + 0x1C) +#define FLBSYCNT(f) (f->reg + 0x20) +#define FLDTFIFO(f) (f->reg + 0x24) +#define FLECFIFO(f) (f->reg + 0x28) +#define FLTRCR(f) (f->reg + 0x2C) +#define FL4ECCRESULT0(f) (f->reg + 0x80) +#define FL4ECCRESULT1(f) (f->reg + 0x84) +#define FL4ECCRESULT2(f) (f->reg + 0x88) +#define FL4ECCRESULT3(f) (f->reg + 0x8C) +#define FL4ECCCR(f) (f->reg + 0x90) +#define FL4ECCCNT(f) (f->reg + 0x94) +#define FLERRADR(f) (f->reg + 0x98) + +/* FLCMNCR control bits */ +#define ECCPOS2 (0x1 << 25) +#define _4ECCCNTEN (0x1 << 24) +#define _4ECCEN (0x1 << 23) +#define _4ECCCORRECT (0x1 << 22) +#define SNAND_E (0x1 << 18) /* SNAND (0=512 1=2048)*/ +#define QTSEL_E (0x1 << 17) +#define ENDIAN (0x1 << 16) /* 1 = little endian */ +#define FCKSEL_E (0x1 << 15) +#define ECCPOS_00 (0x00 << 12) +#define ECCPOS_01 (0x01 << 12) +#define ECCPOS_02 (0x02 << 12) +#define ACM_SACCES_MODE (0x01 << 10) +#define NANWF_E (0x1 << 9) +#define SE_D (0x1 << 8) /* Spare area disable */ +#define CE1_ENABLE (0x1 << 4) /* Chip Enable 1 */ +#define CE0_ENABLE (0x1 << 3) /* Chip Enable 0 */ +#define TYPESEL_SET (0x1 << 0) + +/* FLCMDCR control bits */ +#define ADRCNT2_E (0x1 << 31) /* 5byte address enable */ +#define ADRMD_E (0x1 << 26) /* Sector address access */ +#define CDSRC_E (0x1 << 25) /* Data buffer selection */ +#define DOSR_E (0x1 << 24) /* Status read check */ +#define SELRW (0x1 << 21) /* 0:read 1:write */ +#define DOADR_E (0x1 << 20) /* Address stage execute */ +#define ADRCNT_1 (0x00 << 18) /* Address data bytes: 1byte */ +#define ADRCNT_2 (0x01 << 18) /* Address data bytes: 2byte */ +#define ADRCNT_3 (0x02 << 18) /* Address data bytes: 3byte */ +#define ADRCNT_4 (0x03 << 18) /* Address data bytes: 4byte */ +#define DOCMD2_E (0x1 << 17) /* 2nd cmd stage execute */ +#define DOCMD1_E (0x1 << 16) /* 1st cmd stage execute */ + +/* FLTRCR control bits */ +#define TRSTRT (0x1 << 0) /* translation start */ +#define TREND (0x1 << 1) /* translation end */ + +/* FL4ECCCR control bits */ +#define _4ECCFA (0x1 << 2) /* 4 symbols correct fault */ +#define _4ECCEND (0x1 << 1) /* 4 symbols end */ +#define _4ECCEXST (0x1 << 0) /* 4 symbols exist */ + +#define INIT_FL4ECCRESULT_VAL 0x03FF03FF +#define LOOP_TIMEOUT_MAX 0x00010000 + +#define mtd_to_flctl(mtd) container_of(mtd, struct sh_flctl, mtd) + +struct sh_flctl { + struct mtd_info mtd; + struct nand_chip chip; + void __iomem *reg; + + uint8_t done_buff[2048 + 64]; /* max size 2048 + 64 */ + int read_bytes; + int index; + int seqin_column; /* column in SEQIN cmd */ + int seqin_page_addr; /* page_addr in SEQIN cmd */ + uint32_t seqin_read_cmd; /* read cmd in SEQIN cmd */ + int erase1_page_addr; /* page_addr in ERASE1 cmd */ + uint32_t erase_ADRCNT; /* bits of FLCMDCR in ERASE1 cmd */ + uint32_t rw_ADRCNT; /* bits of FLCMDCR in READ WRITE cmd */ + + int hwecc_cant_correct[4]; + + unsigned page_size:1; /* NAND page size (0 = 512, 1 = 2048) */ + unsigned hwecc:1; /* Hardware ECC (0 = disabled, 1 = enabled) */ +}; + +struct sh_flctl_platform_data { + struct mtd_partition *parts; + int nr_parts; + unsigned long flcmncr_val; + + unsigned has_hwecc:1; +}; + +#endif /* __SH_FLCTL_H__ */ diff --git a/include/linux/namei.h b/include/linux/namei.h index 68f8c3203c89..99eb80306dc5 100644 --- a/include/linux/namei.h +++ b/include/linux/namei.h @@ -51,8 +51,10 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND}; /* * Intent data */ -#define LOOKUP_OPEN (0x0100) -#define LOOKUP_CREATE (0x0200) +#define LOOKUP_OPEN 0x0100 +#define LOOKUP_CREATE 0x0200 +#define LOOKUP_EXCL 0x0400 +#define LOOKUP_RENAME_TARGET 0x0800 extern int user_path_at(int, const char __user *, unsigned, struct path *); @@ -61,6 +63,8 @@ extern int user_path_at(int, const char __user *, unsigned, struct path *); #define user_path_dir(name, path) \ user_path_at(AT_FDCWD, name, LOOKUP_FOLLOW | LOOKUP_DIRECTORY, path) +extern int kern_path(const char *, unsigned, struct path *); + extern int path_lookup(const char *, unsigned, struct nameidata *); extern int vfs_path_lookup(struct dentry *, struct vfsmount *, const char *, unsigned int, struct nameidata *); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 64875859d654..c8bcb59adfdf 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -541,6 +541,14 @@ struct net_device #define NETIF_F_V6_CSUM (NETIF_F_GEN_CSUM | NETIF_F_IPV6_CSUM) #define NETIF_F_ALL_CSUM (NETIF_F_V4_CSUM | NETIF_F_V6_CSUM) + /* + * If one device supports one of these features, then enable them + * for all in netdev_increment_features. + */ +#define NETIF_F_ONE_FOR_ALL (NETIF_F_GSO_SOFTWARE | NETIF_F_GSO_ROBUST | \ + NETIF_F_SG | NETIF_F_HIGHDMA | \ + NETIF_F_FRAGLIST) + /* Interface index. Unique device identifier */ int ifindex; int iflink; @@ -1698,7 +1706,9 @@ extern char *netdev_drivername(const struct net_device *dev, char *buffer, int l extern void linkwatch_run_queue(void); -extern int netdev_compute_features(unsigned long all, unsigned long one); +unsigned long netdev_increment_features(unsigned long all, unsigned long one, + unsigned long mask); +unsigned long netdev_fix_features(unsigned long features, const char *name); static inline int net_gso_ok(int features, int gso_type) { diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index ac8d0233b05c..4eaa8347a0d9 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -367,8 +367,12 @@ static inline struct nfs_open_context *nfs_file_open_context(struct file *filp) static inline struct rpc_cred *nfs_file_cred(struct file *file) { - if (file != NULL) - return nfs_file_open_context(file)->cred; + if (file != NULL) { + struct nfs_open_context *ctx = + nfs_file_open_context(file); + if (ctx) + return ctx->cred; + } return NULL; } diff --git a/include/linux/oprofile.h b/include/linux/oprofile.h index bcb8f725427c..5231861f357d 100644 --- a/include/linux/oprofile.h +++ b/include/linux/oprofile.h @@ -86,13 +86,6 @@ int oprofile_arch_init(struct oprofile_operations * ops); void oprofile_arch_exit(void); /** - * Add data to the event buffer. - * The data passed is free-form, but typically consists of - * file offsets, dcookies, context information, and ESCAPE codes. - */ -void add_event_entry(unsigned long data); - -/** * Add a sample. This may be called from any context. Pass * smp_processor_id() as cpu. */ @@ -162,5 +155,14 @@ int oprofilefs_ulong_from_user(unsigned long * val, char const __user * buf, siz /** lock for read/write safety */ extern spinlock_t oprofilefs_lock; + +/** + * Add the contents of a circular buffer to the event buffer. + */ +void oprofile_put_buff(unsigned long *buf, unsigned int start, + unsigned int stop, unsigned int max); + +unsigned long oprofile_get_cpu_buffer_size(void); +void oprofile_cpu_buffer_inc_smpl_lost(void); #endif /* OPROFILE_H */ diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index c74d3e875314..b12f93a3c345 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -93,6 +93,11 @@ enum pageflags { PG_mappedtodisk, /* Has blocks allocated on-disk */ PG_reclaim, /* To be reclaimed asap */ PG_buddy, /* Page is free, on buddy lists */ + PG_swapbacked, /* Page is backed by RAM/swap */ +#ifdef CONFIG_UNEVICTABLE_LRU + PG_unevictable, /* Page is "unevictable" */ + PG_mlocked, /* Page is vma mlocked */ +#endif #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR PG_uncached, /* Page has been mapped as uncached */ #endif @@ -161,6 +166,18 @@ static inline int Page##uname(struct page *page) \ #define TESTSCFLAG(uname, lname) \ TESTSETFLAG(uname, lname) TESTCLEARFLAG(uname, lname) +#define SETPAGEFLAG_NOOP(uname) \ +static inline void SetPage##uname(struct page *page) { } + +#define CLEARPAGEFLAG_NOOP(uname) \ +static inline void ClearPage##uname(struct page *page) { } + +#define __CLEARPAGEFLAG_NOOP(uname) \ +static inline void __ClearPage##uname(struct page *page) { } + +#define TESTCLEARFLAG_FALSE(uname) \ +static inline int TestClearPage##uname(struct page *page) { return 0; } + struct page; /* forward declaration */ TESTPAGEFLAG(Locked, locked) @@ -169,6 +186,7 @@ PAGEFLAG(Referenced, referenced) TESTCLEARFLAG(Referenced, referenced) PAGEFLAG(Dirty, dirty) TESTSCFLAG(Dirty, dirty) __CLEARPAGEFLAG(Dirty, dirty) PAGEFLAG(LRU, lru) __CLEARPAGEFLAG(LRU, lru) PAGEFLAG(Active, active) __CLEARPAGEFLAG(Active, active) + TESTCLEARFLAG(Active, active) __PAGEFLAG(Slab, slab) PAGEFLAG(Checked, checked) /* Used by some filesystems */ PAGEFLAG(Pinned, pinned) TESTSCFLAG(Pinned, pinned) /* Xen */ @@ -176,6 +194,7 @@ PAGEFLAG(SavePinned, savepinned); /* Xen */ PAGEFLAG(Reserved, reserved) __CLEARPAGEFLAG(Reserved, reserved) PAGEFLAG(Private, private) __CLEARPAGEFLAG(Private, private) __SETPAGEFLAG(Private, private) +PAGEFLAG(SwapBacked, swapbacked) __CLEARPAGEFLAG(SwapBacked, swapbacked) __PAGEFLAG(SlobPage, slob_page) __PAGEFLAG(SlobFree, slob_free) @@ -211,6 +230,25 @@ PAGEFLAG(SwapCache, swapcache) PAGEFLAG_FALSE(SwapCache) #endif +#ifdef CONFIG_UNEVICTABLE_LRU +PAGEFLAG(Unevictable, unevictable) __CLEARPAGEFLAG(Unevictable, unevictable) + TESTCLEARFLAG(Unevictable, unevictable) + +#define MLOCK_PAGES 1 +PAGEFLAG(Mlocked, mlocked) __CLEARPAGEFLAG(Mlocked, mlocked) + TESTSCFLAG(Mlocked, mlocked) + +#else + +#define MLOCK_PAGES 0 +PAGEFLAG_FALSE(Mlocked) + SETPAGEFLAG_NOOP(Mlocked) TESTCLEARFLAG_FALSE(Mlocked) + +PAGEFLAG_FALSE(Unevictable) TESTCLEARFLAG_FALSE(Unevictable) + SETPAGEFLAG_NOOP(Unevictable) CLEARPAGEFLAG_NOOP(Unevictable) + __CLEARPAGEFLAG_NOOP(Unevictable) +#endif + #ifdef CONFIG_IA64_UNCACHED_ALLOCATOR PAGEFLAG(Uncached, uncached) #else @@ -326,15 +364,25 @@ static inline void __ClearPageTail(struct page *page) #endif /* !PAGEFLAGS_EXTENDED */ +#ifdef CONFIG_UNEVICTABLE_LRU +#define __PG_UNEVICTABLE (1 << PG_unevictable) +#define __PG_MLOCKED (1 << PG_mlocked) +#else +#define __PG_UNEVICTABLE 0 +#define __PG_MLOCKED 0 +#endif + #define PAGE_FLAGS (1 << PG_lru | 1 << PG_private | 1 << PG_locked | \ 1 << PG_buddy | 1 << PG_writeback | \ - 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active) + 1 << PG_slab | 1 << PG_swapcache | 1 << PG_active | \ + __PG_UNEVICTABLE | __PG_MLOCKED) /* * Flags checked in bad_page(). Pages on the free list should not have * these flags set. It they are, there is a problem. */ -#define PAGE_FLAGS_CLEAR_WHEN_BAD (PAGE_FLAGS | 1 << PG_reclaim | 1 << PG_dirty) +#define PAGE_FLAGS_CLEAR_WHEN_BAD (PAGE_FLAGS | \ + 1 << PG_reclaim | 1 << PG_dirty | 1 << PG_swapbacked) /* * Flags checked when a page is freed. Pages being freed should not have @@ -347,7 +395,8 @@ static inline void __ClearPageTail(struct page *page) * Pages being prepped should not have these flags set. It they are, there * is a problem. */ -#define PAGE_FLAGS_CHECK_AT_PREP (PAGE_FLAGS | 1 << PG_reserved | 1 << PG_dirty) +#define PAGE_FLAGS_CHECK_AT_PREP (PAGE_FLAGS | \ + 1 << PG_reserved | 1 << PG_dirty | 1 << PG_swapbacked) #endif /* !__GENERATING_BOUNDS_H */ #endif /* PAGE_FLAGS_H */ diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h new file mode 100644 index 000000000000..f546ad6fc028 --- /dev/null +++ b/include/linux/page_cgroup.h @@ -0,0 +1,108 @@ +#ifndef __LINUX_PAGE_CGROUP_H +#define __LINUX_PAGE_CGROUP_H + +#ifdef CONFIG_CGROUP_MEM_RES_CTLR +#include <linux/bit_spinlock.h> +/* + * Page Cgroup can be considered as an extended mem_map. + * A page_cgroup page is associated with every page descriptor. The + * page_cgroup helps us identify information about the cgroup + * All page cgroups are allocated at boot or memory hotplug event, + * then the page cgroup for pfn always exists. + */ +struct page_cgroup { + unsigned long flags; + struct mem_cgroup *mem_cgroup; + struct page *page; + struct list_head lru; /* per cgroup LRU list */ +}; + +void __init pgdat_page_cgroup_init(struct pglist_data *pgdat); +void __init page_cgroup_init(void); +struct page_cgroup *lookup_page_cgroup(struct page *page); + +enum { + /* flags for mem_cgroup */ + PCG_LOCK, /* page cgroup is locked */ + PCG_CACHE, /* charged as cache */ + PCG_USED, /* this object is in use. */ + /* flags for LRU placement */ + PCG_ACTIVE, /* page is active in this cgroup */ + PCG_FILE, /* page is file system backed */ + PCG_UNEVICTABLE, /* page is unevictableable */ +}; + +#define TESTPCGFLAG(uname, lname) \ +static inline int PageCgroup##uname(struct page_cgroup *pc) \ + { return test_bit(PCG_##lname, &pc->flags); } + +#define SETPCGFLAG(uname, lname) \ +static inline void SetPageCgroup##uname(struct page_cgroup *pc)\ + { set_bit(PCG_##lname, &pc->flags); } + +#define CLEARPCGFLAG(uname, lname) \ +static inline void ClearPageCgroup##uname(struct page_cgroup *pc) \ + { clear_bit(PCG_##lname, &pc->flags); } + +/* Cache flag is set only once (at allocation) */ +TESTPCGFLAG(Cache, CACHE) + +TESTPCGFLAG(Used, USED) +CLEARPCGFLAG(Used, USED) + +/* LRU management flags (from global-lru definition) */ +TESTPCGFLAG(File, FILE) +SETPCGFLAG(File, FILE) +CLEARPCGFLAG(File, FILE) + +TESTPCGFLAG(Active, ACTIVE) +SETPCGFLAG(Active, ACTIVE) +CLEARPCGFLAG(Active, ACTIVE) + +TESTPCGFLAG(Unevictable, UNEVICTABLE) +SETPCGFLAG(Unevictable, UNEVICTABLE) +CLEARPCGFLAG(Unevictable, UNEVICTABLE) + +static inline int page_cgroup_nid(struct page_cgroup *pc) +{ + return page_to_nid(pc->page); +} + +static inline enum zone_type page_cgroup_zid(struct page_cgroup *pc) +{ + return page_zonenum(pc->page); +} + +static inline void lock_page_cgroup(struct page_cgroup *pc) +{ + bit_spin_lock(PCG_LOCK, &pc->flags); +} + +static inline int trylock_page_cgroup(struct page_cgroup *pc) +{ + return bit_spin_trylock(PCG_LOCK, &pc->flags); +} + +static inline void unlock_page_cgroup(struct page_cgroup *pc) +{ + bit_spin_unlock(PCG_LOCK, &pc->flags); +} + +#else /* CONFIG_CGROUP_MEM_RES_CTLR */ +struct page_cgroup; + +static inline void pgdat_page_cgroup_init(struct pglist_data *pgdat) +{ +} + +static inline struct page_cgroup *lookup_page_cgroup(struct page *page) +{ + return NULL; +} + +static inline void page_cgroup_init(void) +{ +} + +#endif +#endif diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index 5da31c12101c..709742be02f0 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -32,6 +32,34 @@ static inline void mapping_set_error(struct address_space *mapping, int error) } } +#ifdef CONFIG_UNEVICTABLE_LRU +#define AS_UNEVICTABLE (__GFP_BITS_SHIFT + 2) /* e.g., ramdisk, SHM_LOCK */ + +static inline void mapping_set_unevictable(struct address_space *mapping) +{ + set_bit(AS_UNEVICTABLE, &mapping->flags); +} + +static inline void mapping_clear_unevictable(struct address_space *mapping) +{ + clear_bit(AS_UNEVICTABLE, &mapping->flags); +} + +static inline int mapping_unevictable(struct address_space *mapping) +{ + if (likely(mapping)) + return test_bit(AS_UNEVICTABLE, &mapping->flags); + return !!mapping; +} +#else +static inline void mapping_set_unevictable(struct address_space *mapping) { } +static inline void mapping_clear_unevictable(struct address_space *mapping) { } +static inline int mapping_unevictable(struct address_space *mapping) +{ + return 0; +} +#endif + static inline gfp_t mapping_gfp_mask(struct address_space * mapping) { return (__force gfp_t)mapping->flags & __GFP_BITS_MASK; @@ -271,19 +299,19 @@ extern int __lock_page_killable(struct page *page); extern void __lock_page_nosync(struct page *page); extern void unlock_page(struct page *page); -static inline void set_page_locked(struct page *page) +static inline void __set_page_locked(struct page *page) { - set_bit(PG_locked, &page->flags); + __set_bit(PG_locked, &page->flags); } -static inline void clear_page_locked(struct page *page) +static inline void __clear_page_locked(struct page *page) { - clear_bit(PG_locked, &page->flags); + __clear_bit(PG_locked, &page->flags); } static inline int trylock_page(struct page *page) { - return !test_and_set_bit(PG_locked, &page->flags); + return (likely(!test_and_set_bit_lock(PG_locked, &page->flags))); } /* @@ -410,17 +438,17 @@ extern void __remove_from_page_cache(struct page *page); /* * Like add_to_page_cache_locked, but used to add newly allocated pages: - * the page is new, so we can just run set_page_locked() against it. + * the page is new, so we can just run __set_page_locked() against it. */ static inline int add_to_page_cache(struct page *page, struct address_space *mapping, pgoff_t offset, gfp_t gfp_mask) { int error; - set_page_locked(page); + __set_page_locked(page); error = add_to_page_cache_locked(page, mapping, offset, gfp_mask); if (unlikely(error)) - clear_page_locked(page); + __clear_page_locked(page); return error; } diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h index 8eb7fa76c1d0..e90a2cb02915 100644 --- a/include/linux/pagevec.h +++ b/include/linux/pagevec.h @@ -23,9 +23,9 @@ struct pagevec { void __pagevec_release(struct pagevec *pvec); void __pagevec_release_nonlru(struct pagevec *pvec); void __pagevec_free(struct pagevec *pvec); -void __pagevec_lru_add(struct pagevec *pvec); -void __pagevec_lru_add_active(struct pagevec *pvec); +void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru); void pagevec_strip(struct pagevec *pvec); +void pagevec_swap_free(struct pagevec *pvec); unsigned pagevec_lookup(struct pagevec *pvec, struct address_space *mapping, pgoff_t start, unsigned nr_pages); unsigned pagevec_lookup_tag(struct pagevec *pvec, @@ -81,10 +81,36 @@ static inline void pagevec_free(struct pagevec *pvec) __pagevec_free(pvec); } -static inline void pagevec_lru_add(struct pagevec *pvec) +static inline void __pagevec_lru_add_anon(struct pagevec *pvec) +{ + ____pagevec_lru_add(pvec, LRU_INACTIVE_ANON); +} + +static inline void __pagevec_lru_add_active_anon(struct pagevec *pvec) +{ + ____pagevec_lru_add(pvec, LRU_ACTIVE_ANON); +} + +static inline void __pagevec_lru_add_file(struct pagevec *pvec) +{ + ____pagevec_lru_add(pvec, LRU_INACTIVE_FILE); +} + +static inline void __pagevec_lru_add_active_file(struct pagevec *pvec) +{ + ____pagevec_lru_add(pvec, LRU_ACTIVE_FILE); +} + +static inline void pagevec_lru_add_file(struct pagevec *pvec) +{ + if (pagevec_count(pvec)) + __pagevec_lru_add_file(pvec); +} + +static inline void pagevec_lru_add_anon(struct pagevec *pvec) { if (pagevec_count(pvec)) - __pagevec_lru_add(pvec); + __pagevec_lru_add_anon(pvec); } #endif /* _LINUX_PAGEVEC_H */ diff --git a/include/linux/pci.h b/include/linux/pci.h index 98dc6243a706..c75b82bda327 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -51,6 +51,7 @@ #include <linux/kobject.h> #include <asm/atomic.h> #include <linux/device.h> +#include <linux/io.h> /* Include the ID list */ #include <linux/pci_ids.h> @@ -64,6 +65,11 @@ struct pci_slot { struct kobject kobj; }; +static inline const char *pci_slot_name(const struct pci_slot *slot) +{ + return kobject_name(&slot->kobj); +} + /* File state for mmap()s on /proc/bus/pci/X/Y */ enum pci_mmap_state { pci_mmap_io, @@ -214,6 +220,7 @@ struct pci_dev { unsigned int broken_parity_status:1; /* Device generates false positive parity */ unsigned int msi_enabled:1; unsigned int msix_enabled:1; + unsigned int ari_enabled:1; /* ARI forwarding */ unsigned int is_managed:1; unsigned int is_pcie:1; pci_dev_flags_t dev_flags; @@ -347,7 +354,6 @@ struct pci_bus_region { struct pci_dynids { spinlock_t lock; /* protects list, index */ struct list_head list; /* for IDs added at runtime */ - unsigned int use_driver_data:1; /* pci_device_id->driver_data is used */ }; /* ---------------------------------------------------------------- */ @@ -456,8 +462,8 @@ struct pci_driver { /** * PCI_VDEVICE - macro used to describe a specific pci device in short form - * @vend: the vendor name - * @dev: the 16 bit PCI Device ID + * @vendor: the vendor name + * @device: the 16 bit PCI Device ID * * This macro is used to create a struct pci_device_id that matches a * specific PCI device. The subvendor, and subdevice fields will be set @@ -509,9 +515,10 @@ struct pci_bus *pci_create_bus(struct device *parent, int bus, struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, int busnr); struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr, - const char *name); + const char *name, + struct hotplug_slot *hotplug); void pci_destroy_slot(struct pci_slot *slot); -void pci_update_slot_number(struct pci_slot *slot, int slot_nr); +void pci_renumber_slot(struct pci_slot *slot, int slot_nr); int pci_scan_slot(struct pci_bus *bus, int devfn); struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn); void pci_device_add(struct pci_dev *dev, struct pci_bus *bus); @@ -539,6 +546,13 @@ struct pci_dev __deprecated *pci_find_slot(unsigned int bus, unsigned int devfn); #endif /* CONFIG_PCI_LEGACY */ +enum pci_lost_interrupt_reason { + PCI_LOST_IRQ_NO_INFORMATION = 0, + PCI_LOST_IRQ_DISABLE_MSI, + PCI_LOST_IRQ_DISABLE_MSIX, + PCI_LOST_IRQ_DISABLE_ACPI, +}; +enum pci_lost_interrupt_reason pci_lost_interrupt(struct pci_dev *dev); int pci_find_capability(struct pci_dev *dev, int cap); int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap); int pci_find_ext_capability(struct pci_dev *dev, int cap); @@ -626,11 +640,15 @@ 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 pci_reset_function(struct pci_dev *dev); +int pci_execute_reset_function(struct pci_dev *dev); void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno); int __must_check pci_assign_resource(struct pci_dev *dev, int i); int pci_select_bars(struct pci_dev *dev, unsigned long flags); /* ROM control related routines */ +int pci_enable_rom(struct pci_dev *pdev); +void pci_disable_rom(struct pci_dev *pdev); void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size); void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom); size_t pci_get_rom_size(void __iomem *rom, size_t size); @@ -643,6 +661,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state); bool pci_pme_capable(struct pci_dev *dev, pci_power_t state); void pci_pme_active(struct pci_dev *dev, bool enable); int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable); +int pci_wake_from_d3(struct pci_dev *dev, bool enable); pci_power_t pci_target_state(struct pci_dev *dev); int pci_prepare_to_sleep(struct pci_dev *dev); int pci_back_from_sleep(struct pci_dev *dev); @@ -723,7 +742,7 @@ enum pci_dma_burst_strategy { }; struct msix_entry { - u16 vector; /* kernel uses to write allocated vector */ + u32 vector; /* kernel uses to write allocated vector */ u16 entry; /* driver uses to specify entry, OS writes */ }; @@ -1116,5 +1135,20 @@ static inline void pci_mmcfg_early_init(void) { } static inline void pci_mmcfg_late_init(void) { } #endif +#ifdef CONFIG_HAS_IOMEM +static inline void * pci_ioremap_bar(struct pci_dev *pdev, int bar) +{ + /* + * Make sure the BAR is actually a memory resource, not an IO resource + */ + if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) { + WARN_ON(1); + return NULL; + } + return ioremap_nocache(pci_resource_start(pdev, bar), + pci_resource_len(pdev, bar)); +} +#endif + #endif /* __KERNEL__ */ #endif /* LINUX_PCI_H */ diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h index a08cd06b541a..a00bd1a0f156 100644 --- a/include/linux/pci_hotplug.h +++ b/include/linux/pci_hotplug.h @@ -142,8 +142,6 @@ struct hotplug_slot_info { /** * struct hotplug_slot - used to register a physical slot with the hotplug pci core - * @name: the name of the slot being registered. This string must - * be unique amoung slots registered on this system. * @ops: pointer to the &struct hotplug_slot_ops to be used for this slot * @info: pointer to the &struct hotplug_slot_info for the initial values for * this slot. @@ -153,7 +151,6 @@ struct hotplug_slot_info { * needs. */ struct hotplug_slot { - char *name; struct hotplug_slot_ops *ops; struct hotplug_slot_info *info; void (*release) (struct hotplug_slot *slot); @@ -165,7 +162,13 @@ struct hotplug_slot { }; #define to_hotplug_slot(n) container_of(n, struct hotplug_slot, kobj) -extern int pci_hp_register(struct hotplug_slot *, struct pci_bus *, int nr); +static inline const char *hotplug_slot_name(const struct hotplug_slot *slot) +{ + return pci_slot_name(slot->pci_slot); +} + +extern int pci_hp_register(struct hotplug_slot *, struct pci_bus *, int nr, + const char *name); extern int pci_hp_deregister(struct hotplug_slot *slot); extern int __must_check pci_hp_change_slot_info (struct hotplug_slot *slot, struct hotplug_slot_info *info); diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 8edddc240e4f..1800f1d6e40d 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -1944,6 +1944,14 @@ #define PCI_VENDOR_ID_OXSEMI 0x1415 #define PCI_DEVICE_ID_OXSEMI_12PCI840 0x8403 +#define PCI_DEVICE_ID_OXSEMI_PCIe840 0xC000 +#define PCI_DEVICE_ID_OXSEMI_PCIe840_G 0xC004 +#define PCI_DEVICE_ID_OXSEMI_PCIe952_0 0xC100 +#define PCI_DEVICE_ID_OXSEMI_PCIe952_0_G 0xC104 +#define PCI_DEVICE_ID_OXSEMI_PCIe952_1 0xC110 +#define PCI_DEVICE_ID_OXSEMI_PCIe952_1_G 0xC114 +#define PCI_DEVICE_ID_OXSEMI_PCIe952_1_U 0xC118 +#define PCI_DEVICE_ID_OXSEMI_PCIe952_1_GU 0xC11C #define PCI_DEVICE_ID_OXSEMI_16PCI954 0x9501 #define PCI_DEVICE_ID_OXSEMI_16PCI95N 0x9511 #define PCI_DEVICE_ID_OXSEMI_16PCI954PP 0x9513 @@ -2448,15 +2456,16 @@ #define PCI_DEVICE_ID_INTEL_MCH_PC1 0x359a #define PCI_DEVICE_ID_INTEL_E7525_MCH 0x359e #define PCI_DEVICE_ID_INTEL_IOAT_CNB 0x360b +#define PCI_DEVICE_ID_INTEL_FBD_CNB 0x360c #define PCI_DEVICE_ID_INTEL_ICH10_0 0x3a14 #define PCI_DEVICE_ID_INTEL_ICH10_1 0x3a16 #define PCI_DEVICE_ID_INTEL_ICH10_2 0x3a18 #define PCI_DEVICE_ID_INTEL_ICH10_3 0x3a1a #define PCI_DEVICE_ID_INTEL_ICH10_4 0x3a30 #define PCI_DEVICE_ID_INTEL_ICH10_5 0x3a60 -#define PCI_DEVICE_ID_INTEL_PCH_0 0x3b10 -#define PCI_DEVICE_ID_INTEL_PCH_1 0x3b11 -#define PCI_DEVICE_ID_INTEL_PCH_2 0x3b30 +#define PCI_DEVICE_ID_INTEL_PCH_LPC_MIN 0x3b00 +#define PCI_DEVICE_ID_INTEL_PCH_LPC_MAX 0x3b1f +#define PCI_DEVICE_ID_INTEL_PCH_SMBUS 0x3b30 #define PCI_DEVICE_ID_INTEL_IOAT_SNB 0x402f #define PCI_DEVICE_ID_INTEL_5100_16 0x65f0 #define PCI_DEVICE_ID_INTEL_5100_21 0x65f5 diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h index 450684f7eaac..e5effd47ed74 100644 --- a/include/linux/pci_regs.h +++ b/include/linux/pci_regs.h @@ -377,6 +377,7 @@ #define PCI_EXP_DEVCAP_RBER 0x8000 /* Role-Based Error Reporting */ #define PCI_EXP_DEVCAP_PWR_VAL 0x3fc0000 /* Slot Power Limit Value */ #define PCI_EXP_DEVCAP_PWR_SCL 0xc000000 /* Slot Power Limit Scale */ +#define PCI_EXP_DEVCAP_FLR 0x10000000 /* Function Level Reset */ #define PCI_EXP_DEVCTL 8 /* Device Control */ #define PCI_EXP_DEVCTL_CERE 0x0001 /* Correctable Error Reporting En. */ #define PCI_EXP_DEVCTL_NFERE 0x0002 /* Non-Fatal Error Reporting Enable */ @@ -389,6 +390,7 @@ #define PCI_EXP_DEVCTL_AUX_PME 0x0400 /* Auxiliary Power PM Enable */ #define PCI_EXP_DEVCTL_NOSNOOP_EN 0x0800 /* Enable No Snoop */ #define PCI_EXP_DEVCTL_READRQ 0x7000 /* Max_Read_Request_Size */ +#define PCI_EXP_DEVCTL_BCR_FLR 0x8000 /* Bridge Configuration Retry / FLR */ #define PCI_EXP_DEVSTA 10 /* Device Status */ #define PCI_EXP_DEVSTA_CED 0x01 /* Correctable Error Detected */ #define PCI_EXP_DEVSTA_NFED 0x02 /* Non-Fatal Error Detected */ @@ -419,6 +421,10 @@ #define PCI_EXP_RTCTL_CRSSVE 0x10 /* CRS Software Visibility Enable */ #define PCI_EXP_RTCAP 30 /* Root Capabilities */ #define PCI_EXP_RTSTA 32 /* Root Status */ +#define PCI_EXP_DEVCAP2 36 /* Device Capabilities 2 */ +#define PCI_EXP_DEVCAP2_ARI 0x20 /* Alternative Routing-ID */ +#define PCI_EXP_DEVCTL2 40 /* Device Control 2 */ +#define PCI_EXP_DEVCTL2_ARI 0x20 /* Alternative Routing-ID */ /* Extended Capabilities (PCI-X 2.0 and Express) */ #define PCI_EXT_CAP_ID(header) (header & 0x0000ffff) @@ -429,6 +435,7 @@ #define PCI_EXT_CAP_ID_VC 2 #define PCI_EXT_CAP_ID_DSN 3 #define PCI_EXT_CAP_ID_PWR 4 +#define PCI_EXT_CAP_ID_ARI 14 /* Advanced Error Reporting */ #define PCI_ERR_UNCOR_STATUS 4 /* Uncorrectable Error Status */ @@ -536,5 +543,14 @@ #define HT_CAPTYPE_GEN3 0xD0 /* Generation 3 hypertransport configuration */ #define HT_CAPTYPE_PM 0xE0 /* Hypertransport powermanagement configuration */ +/* Alternative Routing-ID Interpretation */ +#define PCI_ARI_CAP 0x04 /* ARI Capability Register */ +#define PCI_ARI_CAP_MFVC 0x0001 /* MFVC Function Groups Capability */ +#define PCI_ARI_CAP_ACS 0x0002 /* ACS Function Groups Capability */ +#define PCI_ARI_CAP_NFN(x) (((x) >> 8) & 0xff) /* Next Function Number */ +#define PCI_ARI_CTRL 0x06 /* ARI Control Register */ +#define PCI_ARI_CTRL_MFVC 0x0001 /* MFVC Function Groups Enable */ +#define PCI_ARI_CTRL_ACS 0x0002 /* ACS Function Groups Enable */ +#define PCI_ARI_CTRL_FG(x) (((x) >> 4) & 7) /* Function Group */ #endif /* LINUX_PCI_REGS_H */ diff --git a/include/linux/pnp.h b/include/linux/pnp.h index 53b70fd1d9a5..ca3c88773028 100644 --- a/include/linux/pnp.h +++ b/include/linux/pnp.h @@ -485,14 +485,4 @@ static inline void pnp_unregister_driver(struct pnp_driver *drv) { } #endif /* CONFIG_PNP */ -#define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg) -#define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg) -#define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg) - -#ifdef CONFIG_PNP_DEBUG -#define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "\n" , ## arg) -#else -#define pnp_dbg(format, arg...) do {} while (0) -#endif - #endif /* _LINUX_PNP_H */ diff --git a/include/linux/poll.h b/include/linux/poll.h index ef453828877a..badd98ab06f6 100644 --- a/include/linux/poll.h +++ b/include/linux/poll.h @@ -114,11 +114,13 @@ void zero_fd_set(unsigned long nr, unsigned long *fdset) #define MAX_INT64_SECONDS (((s64)(~((u64)0)>>1)/HZ)-1) -extern int do_select(int n, fd_set_bits *fds, s64 *timeout); +extern int do_select(int n, fd_set_bits *fds, struct timespec *end_time); extern int do_sys_poll(struct pollfd __user * ufds, unsigned int nfds, - s64 *timeout); + struct timespec *end_time); extern int core_sys_select(int n, fd_set __user *inp, fd_set __user *outp, - fd_set __user *exp, s64 *timeout); + fd_set __user *exp, struct timespec *end_time); + +extern int poll_select_set_timeout(struct timespec *to, long sec, long nsec); #endif /* KERNEL */ diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index a7dd38f30ade..a7c721355549 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -45,8 +45,6 @@ struct k_itimer { int it_requeue_pending; /* waiting to requeue this timer */ #define REQUEUE_PENDING 1 int it_sigev_notify; /* notify word of sigevent struct */ - int it_sigev_signo; /* signo word of sigevent struct */ - sigval_t it_sigev_value; /* value word of sigevent struct */ struct task_struct *it_process; /* process to send signal to */ struct sigqueue *sigq; /* signal queue entry. */ union { @@ -115,4 +113,6 @@ void set_process_cpu_timer(struct task_struct *task, unsigned int clock_idx, long clock_nanosleep_restart(struct restart_block *restart_block); +void update_rlimit_cpu(unsigned long rlim_new); + #endif diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h index ea96ead1d39d..f9348cba6dc1 100644 --- a/include/linux/power_supply.h +++ b/include/linux/power_supply.h @@ -165,6 +165,12 @@ struct power_supply_info { extern void power_supply_changed(struct power_supply *psy); extern int power_supply_am_i_supplied(struct power_supply *psy); +#if defined(CONFIG_POWER_SUPPLY) || defined(CONFIG_POWER_SUPPLY_MODULE) +extern int power_supply_is_system_supplied(void); +#else +static inline int power_supply_is_system_supplied(void) { return -ENOSYS; } +#endif + extern int power_supply_register(struct device *parent, struct power_supply *psy); extern void power_supply_unregister(struct power_supply *psy); diff --git a/include/linux/prctl.h b/include/linux/prctl.h index 5ad79198d6f9..48d887e3c6e7 100644 --- a/include/linux/prctl.h +++ b/include/linux/prctl.h @@ -78,4 +78,11 @@ #define PR_GET_SECUREBITS 27 #define PR_SET_SECUREBITS 28 +/* + * Get/set the timerslack as used by poll/select/nanosleep + * A value of 0 means "use default" + */ +#define PR_SET_TIMERSLACK 29 +#define PR_GET_TIMERSLACK 30 + #endif /* _LINUX_PRCTL_H */ diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h index 27d534f4470d..b8bdb96eff78 100644 --- a/include/linux/proc_fs.h +++ b/include/linux/proc_fs.h @@ -97,12 +97,9 @@ struct vmcore { #ifdef CONFIG_PROC_FS -extern struct proc_dir_entry *proc_root_kcore; - extern spinlock_t proc_subdir_lock; extern void proc_root_init(void); -extern void proc_misc_init(void); void proc_flush_task(struct task_struct *task); struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *); @@ -138,8 +135,6 @@ extern struct inode *proc_get_inode(struct super_block *, unsigned int, struct p extern int proc_readdir(struct file *, void *, filldir_t); extern struct dentry *proc_lookup(struct inode *, struct dentry *, struct nameidata *); -extern const struct file_operations proc_kcore_operations; - extern int pid_ns_prepare_proc(struct pid_namespace *ns); extern void pid_ns_release_proc(struct pid_namespace *ns); diff --git a/include/linux/profile.h b/include/linux/profile.h index 570045053ce9..a0fc32279fc0 100644 --- a/include/linux/profile.h +++ b/include/linux/profile.h @@ -19,10 +19,16 @@ struct notifier_block; #if defined(CONFIG_PROFILING) && defined(CONFIG_PROC_FS) void create_prof_cpu_mask(struct proc_dir_entry *de); +int create_proc_profile(void); #else static inline void create_prof_cpu_mask(struct proc_dir_entry *de) { } + +static inline int create_proc_profile(void) +{ + return 0; +} #endif enum profile_type { @@ -37,7 +43,6 @@ extern int prof_on __read_mostly; /* init basic kernel profiler */ int profile_init(void); int profile_setup(char *str); -int create_proc_profile(void); void profile_tick(int type); /* diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index ea7416c901d1..22641d5d45df 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -94,7 +94,6 @@ extern void ptrace_notify(int exit_code); extern void __ptrace_link(struct task_struct *child, struct task_struct *new_parent); extern void __ptrace_unlink(struct task_struct *child); -extern void ptrace_untrace(struct task_struct *child); #define PTRACE_MODE_READ 1 #define PTRACE_MODE_ATTACH 2 /* Returns 0 on success, -errno on denial. */ diff --git a/include/linux/reiserfs_fs_sb.h b/include/linux/reiserfs_fs_sb.h index 315517e8bfa1..bda6b562a1e0 100644 --- a/include/linux/reiserfs_fs_sb.h +++ b/include/linux/reiserfs_fs_sb.h @@ -178,6 +178,7 @@ struct reiserfs_journal { struct reiserfs_journal_cnode *j_first; /* oldest journal block. start here for traverse */ struct block_device *j_dev_bd; + fmode_t j_dev_mode; int j_1st_reserved_block; /* first block on s_dev of reserved area journal */ unsigned long j_state; diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h new file mode 100644 index 000000000000..536b0ca46a03 --- /dev/null +++ b/include/linux/ring_buffer.h @@ -0,0 +1,127 @@ +#ifndef _LINUX_RING_BUFFER_H +#define _LINUX_RING_BUFFER_H + +#include <linux/mm.h> +#include <linux/seq_file.h> + +struct ring_buffer; +struct ring_buffer_iter; + +/* + * Don't reference this struct directly, use functions below. + */ +struct ring_buffer_event { + u32 type:2, len:3, time_delta:27; + u32 array[]; +}; + +/** + * enum ring_buffer_type - internal ring buffer types + * + * @RINGBUF_TYPE_PADDING: Left over page padding + * array is ignored + * size is variable depending on how much + * padding is needed + * + * @RINGBUF_TYPE_TIME_EXTEND: Extend the time delta + * array[0] = time delta (28 .. 59) + * size = 8 bytes + * + * @RINGBUF_TYPE_TIME_STAMP: Sync time stamp with external clock + * array[0] = tv_nsec + * array[1] = tv_sec + * size = 16 bytes + * + * @RINGBUF_TYPE_DATA: Data record + * If len is zero: + * array[0] holds the actual length + * array[1..(length+3)/4-1] holds data + * else + * length = len << 2 + * array[0..(length+3)/4] holds data + */ +enum ring_buffer_type { + RINGBUF_TYPE_PADDING, + RINGBUF_TYPE_TIME_EXTEND, + /* FIXME: RINGBUF_TYPE_TIME_STAMP not implemented */ + RINGBUF_TYPE_TIME_STAMP, + RINGBUF_TYPE_DATA, +}; + +unsigned ring_buffer_event_length(struct ring_buffer_event *event); +void *ring_buffer_event_data(struct ring_buffer_event *event); + +/** + * ring_buffer_event_time_delta - return the delta timestamp of the event + * @event: the event to get the delta timestamp of + * + * The delta timestamp is the 27 bit timestamp since the last event. + */ +static inline unsigned +ring_buffer_event_time_delta(struct ring_buffer_event *event) +{ + return event->time_delta; +} + +/* + * size is in bytes for each per CPU buffer. + */ +struct ring_buffer * +ring_buffer_alloc(unsigned long size, unsigned flags); +void ring_buffer_free(struct ring_buffer *buffer); + +int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size); + +struct ring_buffer_event * +ring_buffer_lock_reserve(struct ring_buffer *buffer, + unsigned long length, + unsigned long *flags); +int ring_buffer_unlock_commit(struct ring_buffer *buffer, + struct ring_buffer_event *event, + unsigned long flags); +int ring_buffer_write(struct ring_buffer *buffer, + unsigned long length, void *data); + +struct ring_buffer_event * +ring_buffer_peek(struct ring_buffer *buffer, int cpu, u64 *ts); +struct ring_buffer_event * +ring_buffer_consume(struct ring_buffer *buffer, int cpu, u64 *ts); + +struct ring_buffer_iter * +ring_buffer_read_start(struct ring_buffer *buffer, int cpu); +void ring_buffer_read_finish(struct ring_buffer_iter *iter); + +struct ring_buffer_event * +ring_buffer_iter_peek(struct ring_buffer_iter *iter, u64 *ts); +struct ring_buffer_event * +ring_buffer_read(struct ring_buffer_iter *iter, u64 *ts); +void ring_buffer_iter_reset(struct ring_buffer_iter *iter); +int ring_buffer_iter_empty(struct ring_buffer_iter *iter); + +unsigned long ring_buffer_size(struct ring_buffer *buffer); + +void ring_buffer_reset_cpu(struct ring_buffer *buffer, int cpu); +void ring_buffer_reset(struct ring_buffer *buffer); + +int ring_buffer_swap_cpu(struct ring_buffer *buffer_a, + struct ring_buffer *buffer_b, int cpu); + +int ring_buffer_empty(struct ring_buffer *buffer); +int ring_buffer_empty_cpu(struct ring_buffer *buffer, int cpu); + +void ring_buffer_record_disable(struct ring_buffer *buffer); +void ring_buffer_record_enable(struct ring_buffer *buffer); +void ring_buffer_record_disable_cpu(struct ring_buffer *buffer, int cpu); +void ring_buffer_record_enable_cpu(struct ring_buffer *buffer, int cpu); + +unsigned long ring_buffer_entries(struct ring_buffer *buffer); +unsigned long ring_buffer_overruns(struct ring_buffer *buffer); + +u64 ring_buffer_time_stamp(int cpu); +void ring_buffer_normalize_time_stamp(int cpu, u64 *ts); + +enum ring_buffer_flags { + RB_FL_OVERWRITE = 1 << 0, +}; + +#endif /* _LINUX_RING_BUFFER_H */ diff --git a/include/linux/rmap.h b/include/linux/rmap.h index fed6f5e0b411..89f0564b10c8 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -39,18 +39,6 @@ struct anon_vma { #ifdef CONFIG_MMU -extern struct kmem_cache *anon_vma_cachep; - -static inline struct anon_vma *anon_vma_alloc(void) -{ - return kmem_cache_alloc(anon_vma_cachep, GFP_KERNEL); -} - -static inline void anon_vma_free(struct anon_vma *anon_vma) -{ - kmem_cache_free(anon_vma_cachep, anon_vma); -} - static inline void anon_vma_lock(struct vm_area_struct *vma) { struct anon_vma *anon_vma = vma->anon_vma; @@ -75,6 +63,9 @@ void anon_vma_unlink(struct vm_area_struct *); void anon_vma_link(struct vm_area_struct *); void __anon_vma_link(struct vm_area_struct *); +extern struct anon_vma *page_lock_anon_vma(struct page *page); +extern void page_unlock_anon_vma(struct anon_vma *anon_vma); + /* * rmap interfaces called when adding or removing pte of page */ @@ -117,6 +108,19 @@ unsigned long page_address_in_vma(struct page *, struct vm_area_struct *); */ int page_mkclean(struct page *); +#ifdef CONFIG_UNEVICTABLE_LRU +/* + * called in munlock()/munmap() path to check for other vmas holding + * the page mlocked. + */ +int try_to_munlock(struct page *); +#else +static inline int try_to_munlock(struct page *page) +{ + return 0; /* a.k.a. SWAP_SUCCESS */ +} +#endif + #else /* !CONFIG_MMU */ #define anon_vma_init() do {} while (0) @@ -140,5 +144,6 @@ static inline int page_mkclean(struct page *page) #define SWAP_SUCCESS 0 #define SWAP_AGAIN 1 #define SWAP_FAIL 2 +#define SWAP_MLOCK 3 #endif /* _LINUX_RMAP_H */ diff --git a/include/linux/sched.h b/include/linux/sched.h index c05b45faef18..b483f39a7112 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -402,12 +402,21 @@ extern int get_dumpable(struct mm_struct *mm); #define MMF_DUMP_MAPPED_PRIVATE 4 #define MMF_DUMP_MAPPED_SHARED 5 #define MMF_DUMP_ELF_HEADERS 6 +#define MMF_DUMP_HUGETLB_PRIVATE 7 +#define MMF_DUMP_HUGETLB_SHARED 8 #define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS -#define MMF_DUMP_FILTER_BITS 5 +#define MMF_DUMP_FILTER_BITS 7 #define MMF_DUMP_FILTER_MASK \ (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT) #define MMF_DUMP_FILTER_DEFAULT \ - ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED)) + ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\ + (1 << MMF_DUMP_HUGETLB_PRIVATE) | MMF_DUMP_MASK_DEFAULT_ELF) + +#ifdef CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS +# define MMF_DUMP_MASK_DEFAULT_ELF (1 << MMF_DUMP_ELF_HEADERS) +#else +# define MMF_DUMP_MASK_DEFAULT_ELF 0 +#endif struct sighand_struct { atomic_t count; @@ -424,6 +433,39 @@ struct pacct_struct { unsigned long ac_minflt, ac_majflt; }; +/** + * struct task_cputime - collected CPU time counts + * @utime: time spent in user mode, in &cputime_t units + * @stime: time spent in kernel mode, in &cputime_t units + * @sum_exec_runtime: total time spent on the CPU, in nanoseconds + * + * This structure groups together three kinds of CPU time that are + * tracked for threads and thread groups. Most things considering + * CPU time want to group these counts together and treat all three + * of them in parallel. + */ +struct task_cputime { + cputime_t utime; + cputime_t stime; + unsigned long long sum_exec_runtime; +}; +/* Alternate field names when used to cache expirations. */ +#define prof_exp stime +#define virt_exp utime +#define sched_exp sum_exec_runtime + +/** + * struct thread_group_cputime - thread group interval timer counts + * @totals: thread group interval timers; substructure for + * uniprocessor kernel, per-cpu for SMP kernel. + * + * This structure contains the version of task_cputime, above, that is + * used for thread group CPU clock calculations. + */ +struct thread_group_cputime { + struct task_cputime *totals; +}; + /* * NOTE! "signal_struct" does not have it's own * locking, because a shared signal_struct always @@ -469,6 +511,17 @@ struct signal_struct { cputime_t it_prof_expires, it_virt_expires; cputime_t it_prof_incr, it_virt_incr; + /* + * Thread group totals for process CPU clocks. + * See thread_group_cputime(), et al, for details. + */ + struct thread_group_cputime cputime; + + /* Earliest-expiration cache. */ + struct task_cputime cputime_expires; + + struct list_head cpu_timers[3]; + /* job control IDs */ /* @@ -499,7 +552,7 @@ struct signal_struct { * Live threads maintain their own counters and add to these * in __exit_signal, except for the group leader. */ - cputime_t utime, stime, cutime, cstime; + cputime_t cutime, cstime; cputime_t gtime; cputime_t cgtime; unsigned long nvcsw, nivcsw, cnvcsw, cnivcsw; @@ -508,14 +561,6 @@ struct signal_struct { struct task_io_accounting ioac; /* - * Cumulative ns of scheduled CPU time for dead threads in the - * group, not including a zombie group leader. (This only differs - * from jiffies_to_ns(utime + stime) if sched_clock uses something - * other than jiffies.) - */ - unsigned long long sum_sched_runtime; - - /* * We don't bother to synchronize most readers of this at all, * because there is no reader checking a limit that actually needs * to get both rlim_cur and rlim_max atomically, and either one @@ -526,8 +571,6 @@ struct signal_struct { */ struct rlimit rlim[RLIM_NLIMITS]; - struct list_head cpu_timers[3]; - /* keep the process-shared keyrings here so that they do the right * thing in threads created with CLONE_THREAD */ #ifdef CONFIG_KEYS @@ -637,10 +680,6 @@ struct sched_info { }; #endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */ -#ifdef CONFIG_SCHEDSTATS -extern const struct file_operations proc_schedstat_operations; -#endif /* CONFIG_SCHEDSTATS */ - #ifdef CONFIG_TASK_DELAY_ACCT struct task_delay_info { spinlock_t lock; @@ -1138,8 +1177,7 @@ struct task_struct { /* mm fault and swap info: this can arguably be seen as either mm-specific or thread-specific */ unsigned long min_flt, maj_flt; - cputime_t it_prof_expires, it_virt_expires; - unsigned long long it_sched_expires; + struct task_cputime cputime_expires; struct list_head cpu_timers[3]; /* process credentials */ @@ -1305,6 +1343,12 @@ struct task_struct { int latency_record_count; struct latency_record latency_record[LT_SAVECOUNT]; #endif + /* + * time slack values; these are used to round up poll() and + * select() etc timeout values. These are in nanoseconds. + */ + unsigned long timer_slack_ns; + unsigned long default_timer_slack_ns; }; /* @@ -1589,6 +1633,7 @@ extern unsigned long long cpu_clock(int cpu); extern unsigned long long task_sched_runtime(struct task_struct *task); +extern unsigned long long thread_group_sched_runtime(struct task_struct *task); /* sched_exec is called by processes performing an exec */ #ifdef CONFIG_SMP @@ -2087,6 +2132,30 @@ static inline int spin_needbreak(spinlock_t *lock) } /* + * Thread group CPU time accounting. + */ + +extern int thread_group_cputime_alloc(struct task_struct *); +extern void thread_group_cputime(struct task_struct *, struct task_cputime *); + +static inline void thread_group_cputime_init(struct signal_struct *sig) +{ + sig->cputime.totals = NULL; +} + +static inline int thread_group_cputime_clone_thread(struct task_struct *curr) +{ + if (curr->signal->cputime.totals) + return 0; + return thread_group_cputime_alloc(curr); +} + +static inline void thread_group_cputime_free(struct signal_struct *sig) +{ + free_percpu(sig->cputime.totals); +} + +/* * Reevaluate whether the task has signals pending delivery. * Wake the task if so. * This is required every time the blocked sigset_t changes. diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h index a1783b229ef4..dc50bcc282a8 100644 --- a/include/linux/seq_file.h +++ b/include/linux/seq_file.h @@ -60,6 +60,19 @@ static inline int seq_nodemask(struct seq_file *m, nodemask_t *mask) return seq_bitmap(m, mask->bits, MAX_NUMNODES); } +int seq_bitmap_list(struct seq_file *m, unsigned long *bits, + unsigned int nr_bits); + +static inline int seq_cpumask_list(struct seq_file *m, cpumask_t *mask) +{ + return seq_bitmap_list(m, mask->bits, NR_CPUS); +} + +static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask) +{ + return seq_bitmap_list(m, mask->bits, MAX_NUMNODES); +} + int single_open(struct file *, int (*)(struct seq_file *, void *), void *); int single_release(struct inode *, struct file *); void *__seq_open_private(struct file *, const struct seq_operations *, int); diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h new file mode 100644 index 000000000000..68e212ff9dde --- /dev/null +++ b/include/linux/sh_intc.h @@ -0,0 +1,91 @@ +#ifndef __SH_INTC_H +#define __SH_INTC_H + +typedef unsigned char intc_enum; + +struct intc_vect { + intc_enum enum_id; + unsigned short vect; +}; + +#define INTC_VECT(enum_id, vect) { enum_id, vect } +#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq)) + +struct intc_group { + intc_enum enum_id; + intc_enum enum_ids[32]; +}; + +#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } } + +struct intc_mask_reg { + unsigned long set_reg, clr_reg, reg_width; + intc_enum enum_ids[32]; +#ifdef CONFIG_SMP + unsigned long smp; +#endif +}; + +struct intc_prio_reg { + unsigned long set_reg, clr_reg, reg_width, field_width; + intc_enum enum_ids[16]; +#ifdef CONFIG_SMP + unsigned long smp; +#endif +}; + +struct intc_sense_reg { + unsigned long reg, reg_width, field_width; + intc_enum enum_ids[16]; +}; + +#ifdef CONFIG_SMP +#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8) +#else +#define INTC_SMP(stride, nr) +#endif + +struct intc_desc { + struct intc_vect *vectors; + unsigned int nr_vectors; + struct intc_group *groups; + unsigned int nr_groups; + struct intc_mask_reg *mask_regs; + unsigned int nr_mask_regs; + struct intc_prio_reg *prio_regs; + unsigned int nr_prio_regs; + struct intc_sense_reg *sense_regs; + unsigned int nr_sense_regs; + char *name; +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) + struct intc_mask_reg *ack_regs; + unsigned int nr_ack_regs; +#endif +}; + +#define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a) +#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups, \ + mask_regs, prio_regs, sense_regs) \ +struct intc_desc symbol __initdata = { \ + _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ + _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ + _INTC_ARRAY(sense_regs), \ + chipname, \ +} + +#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A) +#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups, \ + mask_regs, prio_regs, sense_regs, ack_regs) \ +struct intc_desc symbol __initdata = { \ + _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \ + _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \ + _INTC_ARRAY(sense_regs), \ + chipname, \ + _INTC_ARRAY(ack_regs), \ +} +#endif + +void __init register_intc_controller(struct intc_desc *desc); +int intc_set_priority(unsigned int irq, unsigned int prio); + +#endif /* __SH_INTC_H */ diff --git a/include/linux/slab.h b/include/linux/slab.h index 5ff9676c1e2c..ba965c84ae06 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -288,9 +288,4 @@ static inline void *kzalloc_node(size_t size, gfp_t flags, int node) return kmalloc_node(size, flags | __GFP_ZERO, node); } -#ifdef CONFIG_SLABINFO -extern const struct seq_operations slabinfo_op; -ssize_t slabinfo_write(struct file *, const char __user *, size_t, loff_t *); -#endif - #endif /* _LINUX_SLAB_H */ diff --git a/include/linux/smc911x.h b/include/linux/smc911x.h index b58f54c24183..521f37143fae 100644 --- a/include/linux/smc911x.h +++ b/include/linux/smc911x.h @@ -7,6 +7,7 @@ struct smc911x_platdata { unsigned long flags; unsigned long irq_flags; /* IRQF_... */ + int irq_polarity; }; #endif /* __SMC911X_H__ */ diff --git a/include/linux/smp.h b/include/linux/smp.h index 66484d4a8459..2e4d58b26c06 100644 --- a/include/linux/smp.h +++ b/include/linux/smp.h @@ -7,6 +7,7 @@ */ #include <linux/errno.h> +#include <linux/types.h> #include <linux/list.h> #include <linux/cpumask.h> @@ -16,7 +17,8 @@ struct call_single_data { struct list_head list; void (*func) (void *info); void *info; - unsigned int flags; + u16 flags; + u16 priv; }; #ifdef CONFIG_SMP diff --git a/include/linux/swab.h b/include/linux/swab.h index 270d5c208a89..bbed279f3b32 100644 --- a/include/linux/swab.h +++ b/include/linux/swab.h @@ -47,8 +47,6 @@ static inline __attribute_const__ __u16 ___swab16(__u16 val) { #ifdef __arch_swab16 return __arch_swab16(val); -#elif defined(__arch_swab16p) - return __arch_swab16p(&val); #else return __const_swab16(val); #endif @@ -58,8 +56,6 @@ static inline __attribute_const__ __u32 ___swab32(__u32 val) { #ifdef __arch_swab32 return __arch_swab32(val); -#elif defined(__arch_swab32p) - return __arch_swab32p(&val); #else return __const_swab32(val); #endif @@ -69,8 +65,6 @@ static inline __attribute_const__ __u64 ___swab64(__u64 val) { #ifdef __arch_swab64 return __arch_swab64(val); -#elif defined(__arch_swab64p) - return __arch_swab64p(&val); #elif defined(__SWAB_64_THRU_32__) __u32 h = val >> 32; __u32 l = val & ((1ULL << 32) - 1); @@ -84,8 +78,6 @@ static inline __attribute_const__ __u32 ___swahw32(__u32 val) { #ifdef __arch_swahw32 return __arch_swahw32(val); -#elif defined(__arch_swahw32p) - return __arch_swahw32p(&val); #else return __const_swahw32(val); #endif @@ -95,8 +87,6 @@ static inline __attribute_const__ __u32 ___swahb32(__u32 val) { #ifdef __arch_swahb32 return __arch_swahb32(val); -#elif defined(__arch_swahb32p) - return __arch_swahb32p(&val); #else return __const_swahb32(val); #endif diff --git a/include/linux/swap.h b/include/linux/swap.h index de40f169a4e4..a3af95b2cb6d 100644 --- a/include/linux/swap.h +++ b/include/linux/swap.h @@ -7,6 +7,7 @@ #include <linux/list.h> #include <linux/memcontrol.h> #include <linux/sched.h> +#include <linux/node.h> #include <asm/atomic.h> #include <asm/page.h> @@ -171,8 +172,10 @@ extern unsigned int nr_free_pagecache_pages(void); /* linux/mm/swap.c */ -extern void lru_cache_add(struct page *); -extern void lru_cache_add_active(struct page *); +extern void __lru_cache_add(struct page *, enum lru_list lru); +extern void lru_cache_add_lru(struct page *, enum lru_list lru); +extern void lru_cache_add_active_or_unevictable(struct page *, + struct vm_area_struct *); extern void activate_page(struct page *); extern void mark_page_accessed(struct page *); extern void lru_add_drain(void); @@ -180,12 +183,38 @@ extern int lru_add_drain_all(void); extern void rotate_reclaimable_page(struct page *page); extern void swap_setup(void); +extern void add_page_to_unevictable_list(struct page *page); + +/** + * lru_cache_add: add a page to the page lists + * @page: the page to add + */ +static inline void lru_cache_add_anon(struct page *page) +{ + __lru_cache_add(page, LRU_INACTIVE_ANON); +} + +static inline void lru_cache_add_active_anon(struct page *page) +{ + __lru_cache_add(page, LRU_ACTIVE_ANON); +} + +static inline void lru_cache_add_file(struct page *page) +{ + __lru_cache_add(page, LRU_INACTIVE_FILE); +} + +static inline void lru_cache_add_active_file(struct page *page) +{ + __lru_cache_add(page, LRU_ACTIVE_FILE); +} + /* linux/mm/vmscan.c */ extern unsigned long try_to_free_pages(struct zonelist *zonelist, int order, gfp_t gfp_mask); extern unsigned long try_to_free_mem_cgroup_pages(struct mem_cgroup *mem, gfp_t gfp_mask); -extern int __isolate_lru_page(struct page *page, int mode); +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; extern int remove_mapping(struct address_space *mapping, struct page *page); @@ -204,6 +233,34 @@ static inline int zone_reclaim(struct zone *z, gfp_t mask, unsigned int order) } #endif +#ifdef CONFIG_UNEVICTABLE_LRU +extern int page_evictable(struct page *page, struct vm_area_struct *vma); +extern void scan_mapping_unevictable_pages(struct address_space *); + +extern unsigned long scan_unevictable_pages; +extern int scan_unevictable_handler(struct ctl_table *, int, struct file *, + void __user *, size_t *, loff_t *); +extern int scan_unevictable_register_node(struct node *node); +extern void scan_unevictable_unregister_node(struct node *node); +#else +static inline int page_evictable(struct page *page, + struct vm_area_struct *vma) +{ + return 1; +} + +static inline void scan_mapping_unevictable_pages(struct address_space *mapping) +{ +} + +static inline int scan_unevictable_register_node(struct node *node) +{ + return 0; +} + +static inline void scan_unevictable_unregister_node(struct node *node) { } +#endif + extern int kswapd_run(int nid); #ifdef CONFIG_MMU @@ -251,6 +308,7 @@ extern sector_t swapdev_block(int, pgoff_t); extern struct swap_info_struct *get_swap_info_struct(unsigned); extern int can_share_swap_page(struct page *); extern int remove_exclusive_swap_page(struct page *); +extern int remove_exclusive_swap_page_ref(struct page *); struct backing_dev_info; /* linux/mm/thrash.c */ @@ -339,6 +397,11 @@ static inline int remove_exclusive_swap_page(struct page *p) return 0; } +static inline int remove_exclusive_swap_page_ref(struct page *page) +{ + return 0; +} + static inline swp_entry_t get_swap_page(void) { swp_entry_t entry; diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index b330e289d71f..9d68fed50f11 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -21,8 +21,9 @@ struct kobject; struct module; /* FIXME - * The *owner field is no longer used, but leave around - * until the tree gets cleaned up fully. + * The *owner field is no longer used. + * x86 tree has been cleaned up. The owner + * attribute is still left for other arches. */ struct attribute { const char *name; diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h index 38a56477f27a..e6b820f8b56b 100644 --- a/include/linux/thread_info.h +++ b/include/linux/thread_info.h @@ -38,6 +38,14 @@ struct restart_block { #endif u64 expires; } nanosleep; + /* For poll */ + struct { + struct pollfd __user *ufds; + int nfds; + int has_timeout; + unsigned long tv_sec; + unsigned long tv_nsec; + } poll; }; }; diff --git a/include/linux/tick.h b/include/linux/tick.h index 98921a3e1aa8..b6ec8189ac0c 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -96,9 +96,11 @@ extern cpumask_t *tick_get_broadcast_oneshot_mask(void); extern void tick_clock_notify(void); extern int tick_check_oneshot_change(int allow_nohz); extern struct tick_sched *tick_get_tick_sched(int cpu); +extern void tick_check_idle(int cpu); # else static inline void tick_clock_notify(void) { } static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } +static inline void tick_check_idle(int cpu) { } # endif #else /* CONFIG_GENERIC_CLOCKEVENTS */ @@ -106,26 +108,23 @@ static inline void tick_init(void) { } static inline void tick_cancel_sched_timer(int cpu) { } static inline void tick_clock_notify(void) { } static inline int tick_check_oneshot_change(int allow_nohz) { return 0; } +static inline void tick_check_idle(int cpu) { } #endif /* !CONFIG_GENERIC_CLOCKEVENTS */ # ifdef CONFIG_NO_HZ extern void tick_nohz_stop_sched_tick(int inidle); extern void tick_nohz_restart_sched_tick(void); -extern void tick_nohz_update_jiffies(void); extern ktime_t tick_nohz_get_sleep_length(void); -extern void tick_nohz_stop_idle(int cpu); extern u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time); # else static inline void tick_nohz_stop_sched_tick(int inidle) { } static inline void tick_nohz_restart_sched_tick(void) { } -static inline void tick_nohz_update_jiffies(void) { } static inline ktime_t tick_nohz_get_sleep_length(void) { ktime_t len = { .tv64 = NSEC_PER_SEC/HZ }; return len; } -static inline void tick_nohz_stop_idle(int cpu) { } static inline u64 get_cpu_idle_time_us(int cpu, u64 *unused) { return -1; } # endif /* !NO_HZ */ diff --git a/include/linux/time.h b/include/linux/time.h index 51e883df0fa5..ce321ac5c8f8 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -40,6 +40,8 @@ extern struct timezone sys_tz; #define NSEC_PER_SEC 1000000000L #define FSEC_PER_SEC 1000000000000000L +#define TIME_T_MAX (time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1) + static inline int timespec_equal(const struct timespec *a, const struct timespec *b) { @@ -74,6 +76,8 @@ extern unsigned long mktime(const unsigned int year, const unsigned int mon, const unsigned int min, const unsigned int sec); extern void set_normalized_timespec(struct timespec *ts, time_t sec, long nsec); +extern struct timespec timespec_add_safe(const struct timespec lhs, + const struct timespec rhs); /* * sub = lhs - rhs, in normalized form @@ -119,6 +123,7 @@ extern int do_setitimer(int which, struct itimerval *value, extern unsigned int alarm_setitimer(unsigned int seconds); extern int do_getitimer(int which, struct itimerval *value); extern void getnstimeofday(struct timespec *tv); +extern void getrawmonotonic(struct timespec *ts); extern void getboottime(struct timespec *ts); extern void monotonic_to_bootbased(struct timespec *ts); @@ -127,6 +132,9 @@ extern int timekeeping_valid_for_hres(void); extern void update_wall_time(void); extern void update_xtime_cache(u64 nsec); +struct tms; +extern void do_sys_times(struct tms *); + /** * timespec_to_ns - Convert timespec to nanoseconds * @ts: pointer to the timespec variable to be converted @@ -216,6 +224,7 @@ struct itimerval { #define CLOCK_MONOTONIC 1 #define CLOCK_PROCESS_CPUTIME_ID 2 #define CLOCK_THREAD_CPUTIME_ID 3 +#define CLOCK_MONOTONIC_RAW 4 /* * The IDs of various hardware clocks: diff --git a/include/linux/timex.h b/include/linux/timex.h index fc6035d29d56..9007313b5b71 100644 --- a/include/linux/timex.h +++ b/include/linux/timex.h @@ -82,7 +82,7 @@ */ #define SHIFT_USEC 16 /* frequency offset scale (shift) */ #define PPM_SCALE (NSEC_PER_USEC << (NTP_SCALE_SHIFT - SHIFT_USEC)) -#define PPM_SCALE_INV_SHIFT 20 +#define PPM_SCALE_INV_SHIFT 19 #define PPM_SCALE_INV ((1ll << (PPM_SCALE_INV_SHIFT + NTP_SCALE_SHIFT)) / \ PPM_SCALE + 1) @@ -141,8 +141,15 @@ struct timex { #define ADJ_MICRO 0x1000 /* select microsecond resolution */ #define ADJ_NANO 0x2000 /* select nanosecond resolution */ #define ADJ_TICK 0x4000 /* tick value */ + +#ifdef __KERNEL__ +#define ADJ_ADJTIME 0x8000 /* switch between adjtime/adjtimex modes */ +#define ADJ_OFFSET_SINGLESHOT 0x0001 /* old-fashioned adjtime */ +#define ADJ_OFFSET_READONLY 0x2000 /* read-only adjtime */ +#else #define ADJ_OFFSET_SINGLESHOT 0x8001 /* old-fashioned adjtime */ -#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */ +#define ADJ_OFFSET_SS_READ 0xa001 /* read-only adjtime */ +#endif /* xntp 3.4 compatibility names */ #define MOD_OFFSET ADJ_OFFSET diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h new file mode 100644 index 000000000000..c5bb39c7a770 --- /dev/null +++ b/include/linux/tracepoint.h @@ -0,0 +1,137 @@ +#ifndef _LINUX_TRACEPOINT_H +#define _LINUX_TRACEPOINT_H + +/* + * Kernel Tracepoint API. + * + * See Documentation/tracepoint.txt. + * + * (C) Copyright 2008 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> + * + * Heavily inspired from the Linux Kernel Markers. + * + * This file is released under the GPLv2. + * See the file COPYING for more details. + */ + +#include <linux/types.h> +#include <linux/rcupdate.h> + +struct module; +struct tracepoint; + +struct tracepoint { + const char *name; /* Tracepoint name */ + int state; /* State. */ + void **funcs; +} __attribute__((aligned(8))); + + +#define TPPROTO(args...) args +#define TPARGS(args...) args + +#ifdef CONFIG_TRACEPOINTS + +/* + * it_func[0] is never NULL because there is at least one element in the array + * when the array itself is non NULL. + */ +#define __DO_TRACE(tp, proto, args) \ + do { \ + void **it_func; \ + \ + rcu_read_lock_sched(); \ + it_func = rcu_dereference((tp)->funcs); \ + if (it_func) { \ + do { \ + ((void(*)(proto))(*it_func))(args); \ + } while (*(++it_func)); \ + } \ + rcu_read_unlock_sched(); \ + } while (0) + +/* + * Make sure the alignment of the structure in the __tracepoints section will + * not add unwanted padding between the beginning of the section and the + * structure. Force alignment to the same alignment as the section start. + */ +#define DEFINE_TRACE(name, proto, args) \ + static inline void trace_##name(proto) \ + { \ + static const char __tpstrtab_##name[] \ + __attribute__((section("__tracepoints_strings"))) \ + = #name ":" #proto; \ + static struct tracepoint __tracepoint_##name \ + __attribute__((section("__tracepoints"), aligned(8))) = \ + { __tpstrtab_##name, 0, NULL }; \ + if (unlikely(__tracepoint_##name.state)) \ + __DO_TRACE(&__tracepoint_##name, \ + TPPROTO(proto), TPARGS(args)); \ + } \ + static inline int register_trace_##name(void (*probe)(proto)) \ + { \ + return tracepoint_probe_register(#name ":" #proto, \ + (void *)probe); \ + } \ + static inline void unregister_trace_##name(void (*probe)(proto))\ + { \ + tracepoint_probe_unregister(#name ":" #proto, \ + (void *)probe); \ + } + +extern void tracepoint_update_probe_range(struct tracepoint *begin, + struct tracepoint *end); + +#else /* !CONFIG_TRACEPOINTS */ +#define DEFINE_TRACE(name, proto, args) \ + static inline void _do_trace_##name(struct tracepoint *tp, proto) \ + { } \ + static inline void trace_##name(proto) \ + { } \ + static inline int register_trace_##name(void (*probe)(proto)) \ + { \ + return -ENOSYS; \ + } \ + static inline void unregister_trace_##name(void (*probe)(proto))\ + { } + +static inline void tracepoint_update_probe_range(struct tracepoint *begin, + struct tracepoint *end) +{ } +#endif /* CONFIG_TRACEPOINTS */ + +/* + * Connect a probe to a tracepoint. + * Internal API, should not be used directly. + */ +extern int tracepoint_probe_register(const char *name, void *probe); + +/* + * Disconnect a probe from a tracepoint. + * Internal API, should not be used directly. + */ +extern int tracepoint_probe_unregister(const char *name, void *probe); + +struct tracepoint_iter { + struct module *module; + struct tracepoint *tracepoint; +}; + +extern void tracepoint_iter_start(struct tracepoint_iter *iter); +extern void tracepoint_iter_next(struct tracepoint_iter *iter); +extern void tracepoint_iter_stop(struct tracepoint_iter *iter); +extern void tracepoint_iter_reset(struct tracepoint_iter *iter); +extern int tracepoint_get_iter_range(struct tracepoint **tracepoint, + struct tracepoint *begin, struct tracepoint *end); + +/* + * tracepoint_synchronize_unregister must be called between the last tracepoint + * probe unregistration and the end of module exit to make sure there is no + * caller executing a probe when it is freed. + */ +static inline void tracepoint_synchronize_unregister(void) +{ + synchronize_sched(); +} + +#endif diff --git a/include/linux/types.h b/include/linux/types.h index f24f7beb47df..1d98330b1f2c 100644 --- a/include/linux/types.h +++ b/include/linux/types.h @@ -190,6 +190,7 @@ typedef __u32 __bitwise __wsum; #ifdef __KERNEL__ typedef unsigned __bitwise__ gfp_t; +typedef unsigned __bitwise__ fmode_t; #ifdef CONFIG_PHYS_ADDR_T_64BIT typedef u64 phys_addr_t; diff --git a/include/linux/usb.h b/include/linux/usb.h index 94ac74aba6b6..8fa973bede5e 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1135,6 +1135,7 @@ struct usb_anchor { struct list_head urb_list; wait_queue_head_t wait; spinlock_t lock; + unsigned int poisoned:1; }; static inline void init_usb_anchor(struct usb_anchor *anchor) @@ -1459,12 +1460,18 @@ extern struct urb *usb_get_urb(struct urb *urb); extern int usb_submit_urb(struct urb *urb, gfp_t mem_flags); extern int usb_unlink_urb(struct urb *urb); extern void usb_kill_urb(struct urb *urb); +extern void usb_poison_urb(struct urb *urb); +extern void usb_unpoison_urb(struct urb *urb); extern void usb_kill_anchored_urbs(struct usb_anchor *anchor); +extern void usb_poison_anchored_urbs(struct usb_anchor *anchor); extern void usb_unlink_anchored_urbs(struct usb_anchor *anchor); extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor); extern void usb_unanchor_urb(struct urb *urb); extern int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor, unsigned int timeout); +extern struct urb *usb_get_from_anchor(struct usb_anchor *anchor); +extern void usb_scuttle_anchored_urbs(struct usb_anchor *anchor); +extern int usb_anchor_empty(struct usb_anchor *anchor); /** * usb_urb_dir_in - check if an URB describes an IN transfer diff --git a/include/linux/usb/Kbuild b/include/linux/usb/Kbuild index 42e84fc315e3..54c446309a2a 100644 --- a/include/linux/usb/Kbuild +++ b/include/linux/usb/Kbuild @@ -4,4 +4,5 @@ header-y += ch9.h header-y += gadgetfs.h header-y += midi.h header-y += g_printer.h - +header-y += tmc.h +header-y += vstusb.h diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h index ca228bb94218..18a729343ffa 100644 --- a/include/linux/usb/cdc.h +++ b/include/linux/usb/cdc.h @@ -160,6 +160,15 @@ struct usb_cdc_mdlm_detail_desc { __u8 bDetailData[0]; } __attribute__ ((packed)); +/* "OBEX Control Model Functional Descriptor" */ +struct usb_cdc_obex_desc { + __u8 bLength; + __u8 bDescriptorType; + __u8 bDescriptorSubType; + + __le16 bcdVersion; +} __attribute__ ((packed)); + /*-------------------------------------------------------------------------*/ /* diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h index c932390c6da0..935c380ffe47 100644 --- a/include/linux/usb/composite.h +++ b/include/linux/usb/composite.h @@ -130,6 +130,9 @@ struct usb_function { int usb_add_function(struct usb_configuration *, struct usb_function *); +int usb_function_deactivate(struct usb_function *); +int usb_function_activate(struct usb_function *); + int usb_interface_id(struct usb_configuration *, struct usb_function *); /** @@ -316,9 +319,13 @@ struct usb_composite_dev { struct usb_composite_driver *driver; u8 next_string_id; - spinlock_t lock; + /* the gadget driver won't enable the data pullup + * while the deactivation count is nonzero. + */ + unsigned deactivations; - /* REVISIT use and existence of lock ... */ + /* protects at least deactivation count */ + spinlock_t lock; }; extern int usb_string_id(struct usb_composite_dev *c); diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 655341d0f534..0b8617a9176d 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -192,7 +192,7 @@ static inline void usb_set_serial_data(struct usb_serial *serial, void *data) * The driver.owner field should be set to the module owner of this driver. * The driver.name field should be set to the name of this driver (remember * it will show up in sysfs, so it needs to be short and to the point. - * Useing the module name is a good idea.) + * Using the module name is a good idea.) */ struct usb_serial_driver { const char *description; diff --git a/include/linux/usb/tmc.h b/include/linux/usb/tmc.h new file mode 100644 index 000000000000..c045ae12556c --- /dev/null +++ b/include/linux/usb/tmc.h @@ -0,0 +1,43 @@ +/* + * Copyright (C) 2007 Stefan Kopp, Gechingen, Germany + * Copyright (C) 2008 Novell, Inc. + * Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de> + * + * This file holds USB constants defined by the USB Device Class + * Definition for Test and Measurement devices published by the USB-IF. + * + * It also has the ioctl definitions for the usbtmc kernel driver that + * userspace needs to know about. + */ + +#ifndef __LINUX_USB_TMC_H +#define __LINUX_USB_TMC_H + +/* USB TMC status values */ +#define USBTMC_STATUS_SUCCESS 0x01 +#define USBTMC_STATUS_PENDING 0x02 +#define USBTMC_STATUS_FAILED 0x80 +#define USBTMC_STATUS_TRANSFER_NOT_IN_PROGRESS 0x81 +#define USBTMC_STATUS_SPLIT_NOT_IN_PROGRESS 0x82 +#define USBTMC_STATUS_SPLIT_IN_PROGRESS 0x83 + +/* USB TMC requests values */ +#define USBTMC_REQUEST_INITIATE_ABORT_BULK_OUT 1 +#define USBTMC_REQUEST_CHECK_ABORT_BULK_OUT_STATUS 2 +#define USBTMC_REQUEST_INITIATE_ABORT_BULK_IN 3 +#define USBTMC_REQUEST_CHECK_ABORT_BULK_IN_STATUS 4 +#define USBTMC_REQUEST_INITIATE_CLEAR 5 +#define USBTMC_REQUEST_CHECK_CLEAR_STATUS 6 +#define USBTMC_REQUEST_GET_CAPABILITIES 7 +#define USBTMC_REQUEST_INDICATOR_PULSE 64 + +/* Request values for USBTMC driver's ioctl entry point */ +#define USBTMC_IOC_NR 91 +#define USBTMC_IOCTL_INDICATOR_PULSE _IO(USBTMC_IOC_NR, 1) +#define USBTMC_IOCTL_CLEAR _IO(USBTMC_IOC_NR, 2) +#define USBTMC_IOCTL_ABORT_BULK_OUT _IO(USBTMC_IOC_NR, 3) +#define USBTMC_IOCTL_ABORT_BULK_IN _IO(USBTMC_IOC_NR, 4) +#define USBTMC_IOCTL_CLEAR_OUT_HALT _IO(USBTMC_IOC_NR, 6) +#define USBTMC_IOCTL_CLEAR_IN_HALT _IO(USBTMC_IOC_NR, 7) + +#endif diff --git a/include/linux/usb/vstusb.h b/include/linux/usb/vstusb.h new file mode 100644 index 000000000000..1cfac67191ff --- /dev/null +++ b/include/linux/usb/vstusb.h @@ -0,0 +1,71 @@ +/***************************************************************************** + * File: drivers/usb/misc/vstusb.h + * + * Purpose: Support for the bulk USB Vernier Spectrophotometers + * + * Author: EQware Engineering, Inc. + * Oregon City, OR, USA 97045 + * + * Copyright: 2007, 2008 + * Vernier Software & Technology + * Beaverton, OR, USA 97005 + * + * Web: www.vernier.com + * + * 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. + * + *****************************************************************************/ +/***************************************************************************** + * + * The vstusb module is a standard usb 'client' driver running on top of the + * standard usb host controller stack. + * + * In general, vstusb supports standard bulk usb pipes. It supports multiple + * devices and multiple pipes per device. + * + * The vstusb driver supports two interfaces: + * 1 - ioctl SEND_PIPE/RECV_PIPE - a general bulk write/read msg + * interface to any pipe with timeout support; + * 2 - standard read/write with ioctl config - offers standard read/write + * interface with ioctl configured pipes and timeouts. + * + * Both interfaces can be signal from other process and will abort its i/o + * operation. + * + * A timeout of 0 means NO timeout. The user can still terminate the read via + * signal. + * + * If using multiple threads with this driver, the user should ensure that + * any reads, writes, or ioctls are complete before closing the device. + * Changing read/write timeouts or pipes takes effect on next read/write. + * + *****************************************************************************/ + +struct vstusb_args { + union { + /* this struct is used for IOCTL_VSTUSB_SEND_PIPE, * + * IOCTL_VSTUSB_RECV_PIPE, and read()/write() fops */ + struct { + void __user *buffer; + size_t count; + unsigned int timeout_ms; + int pipe; + }; + + /* this one is used for IOCTL_VSTUSB_CONFIG_RW */ + struct { + int rd_pipe; + int rd_timeout_ms; + int wr_pipe; + int wr_timeout_ms; + }; + }; +}; + +#define VST_IOC_MAGIC 'L' +#define VST_IOC_FIRST 0x20 +#define IOCTL_VSTUSB_SEND_PIPE _IO(VST_IOC_MAGIC, VST_IOC_FIRST) +#define IOCTL_VSTUSB_RECV_PIPE _IO(VST_IOC_MAGIC, VST_IOC_FIRST + 1) +#define IOCTL_VSTUSB_CONFIG_RW _IO(VST_IOC_MAGIC, VST_IOC_FIRST + 2) diff --git a/include/linux/usb/wusb-wa.h b/include/linux/usb/wusb-wa.h new file mode 100644 index 000000000000..a102561e7026 --- /dev/null +++ b/include/linux/usb/wusb-wa.h @@ -0,0 +1,271 @@ +/* + * Wireless USB Wire Adapter constants and structures. + * + * Copyright (C) 2005-2006 Intel Corporation. + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * 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 Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * FIXME: organize properly, group logically + * + * All the event structures are defined in uwb/spec.h, as they are + * common to the WHCI and WUSB radio control interfaces. + * + * References: + * [WUSB] Wireless Universal Serial Bus Specification, revision 1.0, ch8 + */ +#ifndef __LINUX_USB_WUSB_WA_H +#define __LINUX_USB_WUSB_WA_H + +/** + * Radio Command Request for the Radio Control Interface + * + * Radio Control Interface command and event codes are the same as + * WHCI, and listed in include/linux/uwb.h:UWB_RC_{CMD,EVT}_* + */ +enum { + WA_EXEC_RC_CMD = 40, /* Radio Control command Request */ +}; + +/* Wireless Adapter Requests ([WUSB] table 8-51) */ +enum { + WUSB_REQ_ADD_MMC_IE = 20, + WUSB_REQ_REMOVE_MMC_IE = 21, + WUSB_REQ_SET_NUM_DNTS = 22, + WUSB_REQ_SET_CLUSTER_ID = 23, + WUSB_REQ_SET_DEV_INFO = 24, + WUSB_REQ_GET_TIME = 25, + WUSB_REQ_SET_STREAM_IDX = 26, + WUSB_REQ_SET_WUSB_MAS = 27, +}; + + +/* Wireless Adapter WUSB Channel Time types ([WUSB] table 8-52) */ +enum { + WUSB_TIME_ADJ = 0, + WUSB_TIME_BPST = 1, + WUSB_TIME_WUSB = 2, +}; + +enum { + WA_ENABLE = 0x01, + WA_RESET = 0x02, + RPIPE_PAUSE = 0x1, +}; + +/* Responses from Get Status request ([WUSB] section 8.3.1.6) */ +enum { + WA_STATUS_ENABLED = 0x01, + WA_STATUS_RESETTING = 0x02 +}; + +enum rpipe_crs { + RPIPE_CRS_CTL = 0x01, + RPIPE_CRS_ISO = 0x02, + RPIPE_CRS_BULK = 0x04, + RPIPE_CRS_INTR = 0x08 +}; + +/** + * RPipe descriptor ([WUSB] section 8.5.2.11) + * + * FIXME: explain rpipes + */ +struct usb_rpipe_descriptor { + u8 bLength; + u8 bDescriptorType; + __le16 wRPipeIndex; + __le16 wRequests; + __le16 wBlocks; /* rw if 0 */ + __le16 wMaxPacketSize; /* rw? */ + u8 bHSHubAddress; /* reserved: 0 */ + u8 bHSHubPort; /* ??? FIXME ??? */ + u8 bSpeed; /* rw: xfer rate 'enum uwb_phy_rate' */ + u8 bDeviceAddress; /* rw: Target device address */ + u8 bEndpointAddress; /* rw: Target EP address */ + u8 bDataSequence; /* ro: Current Data sequence */ + __le32 dwCurrentWindow; /* ro */ + u8 bMaxDataSequence; /* ro?: max supported seq */ + u8 bInterval; /* rw: */ + u8 bOverTheAirInterval; /* rw: */ + u8 bmAttribute; /* ro? */ + u8 bmCharacteristics; /* ro? enum rpipe_attr, supported xsactions */ + u8 bmRetryOptions; /* rw? */ + __le16 wNumTransactionErrors; /* rw */ +} __attribute__ ((packed)); + +/** + * Wire Adapter Notification types ([WUSB] sections 8.4.5 & 8.5.4) + * + * These are the notifications coming on the notification endpoint of + * an HWA and a DWA. + */ +enum wa_notif_type { + DWA_NOTIF_RWAKE = 0x91, + DWA_NOTIF_PORTSTATUS = 0x92, + WA_NOTIF_TRANSFER = 0x93, + HWA_NOTIF_BPST_ADJ = 0x94, + HWA_NOTIF_DN = 0x95, +}; + +/** + * Wire Adapter notification header + * + * Notifications coming from a wire adapter use a common header + * defined in [WUSB] sections 8.4.5 & 8.5.4. + */ +struct wa_notif_hdr { + u8 bLength; + u8 bNotifyType; /* enum wa_notif_type */ +} __attribute__((packed)); + +/** + * HWA DN Received notification [(WUSB] section 8.5.4.2) + * + * The DNData is specified in WUSB1.0[7.6]. For each device + * notification we received, we just need to dispatch it. + * + * @dndata: this is really an array of notifications, but all start + * with the same header. + */ +struct hwa_notif_dn { + struct wa_notif_hdr hdr; + u8 bSourceDeviceAddr; /* from errata 2005/07 */ + u8 bmAttributes; + struct wusb_dn_hdr dndata[]; +} __attribute__((packed)); + +/* [WUSB] section 8.3.3 */ +enum wa_xfer_type { + WA_XFER_TYPE_CTL = 0x80, + WA_XFER_TYPE_BI = 0x81, /* bulk/interrupt */ + WA_XFER_TYPE_ISO = 0x82, + WA_XFER_RESULT = 0x83, + WA_XFER_ABORT = 0x84, +}; + +/* [WUSB] section 8.3.3 */ +struct wa_xfer_hdr { + u8 bLength; /* 0x18 */ + u8 bRequestType; /* 0x80 WA_REQUEST_TYPE_CTL */ + __le16 wRPipe; /* RPipe index */ + __le32 dwTransferID; /* Host-assigned ID */ + __le32 dwTransferLength; /* Length of data to xfer */ + u8 bTransferSegment; +} __attribute__((packed)); + +struct wa_xfer_ctl { + struct wa_xfer_hdr hdr; + u8 bmAttribute; + __le16 wReserved; + struct usb_ctrlrequest baSetupData; +} __attribute__((packed)); + +struct wa_xfer_bi { + struct wa_xfer_hdr hdr; + u8 bReserved; + __le16 wReserved; +} __attribute__((packed)); + +struct wa_xfer_hwaiso { + struct wa_xfer_hdr hdr; + u8 bReserved; + __le16 wPresentationTime; + __le32 dwNumOfPackets; + /* FIXME: u8 pktdata[]? */ +} __attribute__((packed)); + +/* [WUSB] section 8.3.3.5 */ +struct wa_xfer_abort { + u8 bLength; + u8 bRequestType; + __le16 wRPipe; /* RPipe index */ + __le32 dwTransferID; /* Host-assigned ID */ +} __attribute__((packed)); + +/** + * WA Transfer Complete notification ([WUSB] section 8.3.3.3) + * + */ +struct wa_notif_xfer { + struct wa_notif_hdr hdr; + u8 bEndpoint; + u8 Reserved; +} __attribute__((packed)); + +/** Transfer result basic codes [WUSB] table 8-15 */ +enum { + WA_XFER_STATUS_SUCCESS, + WA_XFER_STATUS_HALTED, + WA_XFER_STATUS_DATA_BUFFER_ERROR, + WA_XFER_STATUS_BABBLE, + WA_XFER_RESERVED, + WA_XFER_STATUS_NOT_FOUND, + WA_XFER_STATUS_INSUFFICIENT_RESOURCE, + WA_XFER_STATUS_TRANSACTION_ERROR, + WA_XFER_STATUS_ABORTED, + WA_XFER_STATUS_RPIPE_NOT_READY, + WA_XFER_INVALID_FORMAT, + WA_XFER_UNEXPECTED_SEGMENT_NUMBER, + WA_XFER_STATUS_RPIPE_TYPE_MISMATCH, +}; + +/** [WUSB] section 8.3.3.4 */ +struct wa_xfer_result { + struct wa_notif_hdr hdr; + __le32 dwTransferID; + __le32 dwTransferLength; + u8 bTransferSegment; + u8 bTransferStatus; + __le32 dwNumOfPackets; +} __attribute__((packed)); + +/** + * Wire Adapter Class Descriptor ([WUSB] section 8.5.2.7). + * + * NOTE: u16 fields are read Little Endian from the hardware. + * + * @bNumPorts is the original max number of devices that the host can + * connect; we might chop this so the stack can handle + * it. In case you need to access it, use wusbhc->ports_max + * if it is a Wireless USB WA. + */ +struct usb_wa_descriptor { + u8 bLength; + u8 bDescriptorType; + u16 bcdWAVersion; + u8 bNumPorts; /* don't use!! */ + u8 bmAttributes; /* Reserved == 0 */ + u16 wNumRPipes; + u16 wRPipeMaxBlock; + u8 bRPipeBlockSize; + u8 bPwrOn2PwrGood; + u8 bNumMMCIEs; + u8 DeviceRemovable; /* FIXME: in DWA this is up to 16 bytes */ +} __attribute__((packed)); + +/** + * HWA Device Information Buffer (WUSB1.0[T8.54]) + */ +struct hwa_dev_info { + u8 bmDeviceAvailability[32]; /* FIXME: ignored for now */ + u8 bDeviceAddress; + __le16 wPHYRates; + u8 bmDeviceAttribute; +} __attribute__((packed)); + +#endif /* #ifndef __LINUX_USB_WUSB_WA_H */ diff --git a/include/linux/usb/wusb.h b/include/linux/usb/wusb.h new file mode 100644 index 000000000000..5f401b644ed5 --- /dev/null +++ b/include/linux/usb/wusb.h @@ -0,0 +1,376 @@ +/* + * Wireless USB Standard Definitions + * Event Size Tables + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * 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 Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * FIXME: organize properly, group logically + * + * All the event structures are defined in uwb/spec.h, as they are + * common to the WHCI and WUSB radio control interfaces. + */ + +#ifndef __WUSB_H__ +#define __WUSB_H__ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/uwb/spec.h> +#include <linux/usb/ch9.h> +#include <linux/param.h> + +/** + * WUSB Information Element header + * + * I don't know why, they decided to make it different to the MBOA MAC + * IE Header; beats me. + */ +struct wuie_hdr { + u8 bLength; + u8 bIEIdentifier; +} __attribute__((packed)); + +enum { + WUIE_ID_WCTA = 0x80, + WUIE_ID_CONNECTACK, + WUIE_ID_HOST_INFO, + WUIE_ID_CHANGE_ANNOUNCE, + WUIE_ID_DEVICE_DISCONNECT, + WUIE_ID_HOST_DISCONNECT, + WUIE_ID_KEEP_ALIVE = 0x89, + WUIE_ID_ISOCH_DISCARD, + WUIE_ID_RESET_DEVICE, +}; + +/** + * Maximum number of array elements in a WUSB IE. + * + * WUSB1.0[7.5 before table 7-38] says that in WUSB IEs that + * are "arrays" have to limited to 4 elements. So we define it + * like that to ease up and submit only the neeed size. + */ +#define WUIE_ELT_MAX 4 + +/** + * Wrapper for the data that defines a CHID, a CDID or a CK + * + * WUSB defines that CHIDs, CDIDs and CKs are a 16 byte string of + * data. In order to avoid confusion and enforce types, we wrap it. + * + * Make it packed, as we use it in some hw defintions. + */ +struct wusb_ckhdid { + u8 data[16]; +} __attribute__((packed)); + +const static +struct wusb_ckhdid wusb_ckhdid_zero = { .data = { 0 } }; + +#define WUSB_CKHDID_STRSIZE (3 * sizeof(struct wusb_ckhdid) + 1) + +/** + * WUSB IE: Host Information (WUSB1.0[7.5.2]) + * + * Used to provide information about the host to the Wireless USB + * devices in range (CHID can be used as an ASCII string). + */ +struct wuie_host_info { + struct wuie_hdr hdr; + __le16 attributes; + struct wusb_ckhdid CHID; +} __attribute__((packed)); + +/** + * WUSB IE: Connect Ack (WUSB1.0[7.5.1]) + * + * Used to acknowledge device connect requests. See note for + * WUIE_ELT_MAX. + */ +struct wuie_connect_ack { + struct wuie_hdr hdr; + struct { + struct wusb_ckhdid CDID; + u8 bDeviceAddress; /* 0 means unused */ + u8 bReserved; + } blk[WUIE_ELT_MAX]; +} __attribute__((packed)); + +/** + * WUSB IE Host Information Element, Connect Availability + * + * WUSB1.0[7.5.2], bmAttributes description + */ +enum { + WUIE_HI_CAP_RECONNECT = 0, + WUIE_HI_CAP_LIMITED, + WUIE_HI_CAP_RESERVED, + WUIE_HI_CAP_ALL, +}; + +/** + * WUSB IE: Channel Stop (WUSB1.0[7.5.8]) + * + * Tells devices the host is going to stop sending MMCs and will dissapear. + */ +struct wuie_channel_stop { + struct wuie_hdr hdr; + u8 attributes; + u8 timestamp[3]; +} __attribute__((packed)); + +/** + * WUSB IE: Keepalive (WUSB1.0[7.5.9]) + * + * Ask device(s) to send keepalives. + */ +struct wuie_keep_alive { + struct wuie_hdr hdr; + u8 bDeviceAddress[WUIE_ELT_MAX]; +} __attribute__((packed)); + +/** + * WUSB IE: Reset device (WUSB1.0[7.5.11]) + * + * Tell device to reset; in all truth, we can fit 4 CDIDs, but we only + * use it for one at the time... + * + * In any case, this request is a wee bit silly: why don't they target + * by address?? + */ +struct wuie_reset { + struct wuie_hdr hdr; + struct wusb_ckhdid CDID; +} __attribute__((packed)); + +/** + * WUSB IE: Disconnect device (WUSB1.0[7.5.11]) + * + * Tell device to disconnect; we can fit 4 addresses, but we only use + * it for one at the time... + */ +struct wuie_disconnect { + struct wuie_hdr hdr; + u8 bDeviceAddress; + u8 padding; +} __attribute__((packed)); + +/** + * WUSB IE: Host disconnect ([WUSB] section 7.5.5) + * + * Tells all connected devices to disconnect. + */ +struct wuie_host_disconnect { + struct wuie_hdr hdr; +} __attribute__((packed)); + +/** + * WUSB Device Notification header (WUSB1.0[7.6]) + */ +struct wusb_dn_hdr { + u8 bType; + u8 notifdata[]; +} __attribute__((packed)); + +/** Device Notification codes (WUSB1.0[Table 7-54]) */ +enum WUSB_DN { + WUSB_DN_CONNECT = 0x01, + WUSB_DN_DISCONNECT = 0x02, + WUSB_DN_EPRDY = 0x03, + WUSB_DN_MASAVAILCHANGED = 0x04, + WUSB_DN_RWAKE = 0x05, + WUSB_DN_SLEEP = 0x06, + WUSB_DN_ALIVE = 0x07, +}; + +/** WUSB Device Notification Connect */ +struct wusb_dn_connect { + struct wusb_dn_hdr hdr; + __le16 attributes; + struct wusb_ckhdid CDID; +} __attribute__((packed)); + +static inline int wusb_dn_connect_prev_dev_addr(const struct wusb_dn_connect *dn) +{ + return le16_to_cpu(dn->attributes) & 0xff; +} + +static inline int wusb_dn_connect_new_connection(const struct wusb_dn_connect *dn) +{ + return (le16_to_cpu(dn->attributes) >> 8) & 0x1; +} + +static inline int wusb_dn_connect_beacon_behavior(const struct wusb_dn_connect *dn) +{ + return (le16_to_cpu(dn->attributes) >> 9) & 0x03; +} + +/** Device is alive (aka: pong) (WUSB1.0[7.6.7]) */ +struct wusb_dn_alive { + struct wusb_dn_hdr hdr; +} __attribute__((packed)); + +/** Device is disconnecting (WUSB1.0[7.6.2]) */ +struct wusb_dn_disconnect { + struct wusb_dn_hdr hdr; +} __attribute__((packed)); + +/* General constants */ +enum { + WUSB_TRUST_TIMEOUT_MS = 4000, /* [WUSB] section 4.15.1 */ +}; + +static inline size_t ckhdid_printf(char *pr_ckhdid, size_t size, + const struct wusb_ckhdid *ckhdid) +{ + return scnprintf(pr_ckhdid, size, + "%02hx %02hx %02hx %02hx %02hx %02hx %02hx %02hx " + "%02hx %02hx %02hx %02hx %02hx %02hx %02hx %02hx", + ckhdid->data[0], ckhdid->data[1], + ckhdid->data[2], ckhdid->data[3], + ckhdid->data[4], ckhdid->data[5], + ckhdid->data[6], ckhdid->data[7], + ckhdid->data[8], ckhdid->data[9], + ckhdid->data[10], ckhdid->data[11], + ckhdid->data[12], ckhdid->data[13], + ckhdid->data[14], ckhdid->data[15]); +} + +/* + * WUSB Crypto stuff (WUSB1.0[6]) + */ + +extern const char *wusb_et_name(u8); + +/** + * WUSB key index WUSB1.0[7.3.2.4], for usage when setting keys for + * the host or the device. + */ +static inline u8 wusb_key_index(int index, int type, int originator) +{ + return (originator << 6) | (type << 4) | index; +} + +#define WUSB_KEY_INDEX_TYPE_PTK 0 /* for HWA only */ +#define WUSB_KEY_INDEX_TYPE_ASSOC 1 +#define WUSB_KEY_INDEX_TYPE_GTK 2 +#define WUSB_KEY_INDEX_ORIGINATOR_HOST 0 +#define WUSB_KEY_INDEX_ORIGINATOR_DEVICE 1 + +/* A CCM Nonce, defined in WUSB1.0[6.4.1] */ +struct aes_ccm_nonce { + u8 sfn[6]; /* Little Endian */ + u8 tkid[3]; /* LE */ + struct uwb_dev_addr dest_addr; + struct uwb_dev_addr src_addr; +} __attribute__((packed)); + +/* A CCM operation label, defined on WUSB1.0[6.5.x] */ +struct aes_ccm_label { + u8 data[14]; +} __attribute__((packed)); + +/* + * Input to the key derivation sequence defined in + * WUSB1.0[6.5.1]. Rest of the data is in the CCM Nonce passed to the + * PRF function. + */ +struct wusb_keydvt_in { + u8 hnonce[16]; + u8 dnonce[16]; +} __attribute__((packed)); + +/* + * Output from the key derivation sequence defined in + * WUSB1.0[6.5.1]. + */ +struct wusb_keydvt_out { + u8 kck[16]; + u8 ptk[16]; +} __attribute__((packed)); + +/* Pseudo Random Function WUSB1.0[6.5] */ +extern int wusb_crypto_init(void); +extern void wusb_crypto_exit(void); +extern ssize_t wusb_prf(void *out, size_t out_size, + const u8 key[16], const struct aes_ccm_nonce *_n, + const struct aes_ccm_label *a, + const void *b, size_t blen, size_t len); + +static inline int wusb_prf_64(void *out, size_t out_size, const u8 key[16], + const struct aes_ccm_nonce *n, + const struct aes_ccm_label *a, + const void *b, size_t blen) +{ + return wusb_prf(out, out_size, key, n, a, b, blen, 64); +} + +static inline int wusb_prf_128(void *out, size_t out_size, const u8 key[16], + const struct aes_ccm_nonce *n, + const struct aes_ccm_label *a, + const void *b, size_t blen) +{ + return wusb_prf(out, out_size, key, n, a, b, blen, 128); +} + +static inline int wusb_prf_256(void *out, size_t out_size, const u8 key[16], + const struct aes_ccm_nonce *n, + const struct aes_ccm_label *a, + const void *b, size_t blen) +{ + return wusb_prf(out, out_size, key, n, a, b, blen, 256); +} + +/* Key derivation WUSB1.0[6.5.1] */ +static inline int wusb_key_derive(struct wusb_keydvt_out *keydvt_out, + const u8 key[16], + const struct aes_ccm_nonce *n, + const struct wusb_keydvt_in *keydvt_in) +{ + const struct aes_ccm_label a = { .data = "Pair-wise keys" }; + return wusb_prf_256(keydvt_out, sizeof(*keydvt_out), key, n, &a, + keydvt_in, sizeof(*keydvt_in)); +} + +/* + * Out-of-band MIC Generation WUSB1.0[6.5.2] + * + * Compute the MIC over @key, @n and @hs and place it in @mic_out. + * + * @mic_out: Where to place the 8 byte MIC tag + * @key: KCK from the derivation process + * @n: CCM nonce, n->sfn == 0, TKID as established in the + * process. + * @hs: Handshake struct for phase 2 of the 4-way. + * hs->bStatus and hs->bReserved are zero. + * hs->bMessageNumber is 2 (WUSB1.0[7.3.2.5.2] + * hs->dest_addr is the device's USB address padded with 0 + * hs->src_addr is the hosts's UWB device address + * hs->mic is ignored (as we compute that value). + */ +static inline int wusb_oob_mic(u8 mic_out[8], const u8 key[16], + const struct aes_ccm_nonce *n, + const struct usb_handshake *hs) +{ + const struct aes_ccm_label a = { .data = "out-of-bandMIC" }; + return wusb_prf_64(mic_out, 8, key, n, &a, + hs, sizeof(*hs) - sizeof(hs->MIC)); +} + +#endif /* #ifndef __WUSB_H__ */ diff --git a/include/linux/uwb.h b/include/linux/uwb.h new file mode 100644 index 000000000000..f9ccbd9a2ced --- /dev/null +++ b/include/linux/uwb.h @@ -0,0 +1,765 @@ +/* + * Ultra Wide Band + * UWB API + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * 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 Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: doc: overview of the API, different parts and pointers + */ + +#ifndef __LINUX__UWB_H__ +#define __LINUX__UWB_H__ + +#include <linux/limits.h> +#include <linux/device.h> +#include <linux/mutex.h> +#include <linux/timer.h> +#include <linux/workqueue.h> +#include <linux/uwb/spec.h> + +struct uwb_dev; +struct uwb_beca_e; +struct uwb_rc; +struct uwb_rsv; +struct uwb_dbg; + +/** + * struct uwb_dev - a UWB Device + * @rc: UWB Radio Controller that discovered the device (kind of its + * parent). + * @bce: a beacon cache entry for this device; or NULL if the device + * is a local radio controller. + * @mac_addr: the EUI-48 address of this device. + * @dev_addr: the current DevAddr used by this device. + * @beacon_slot: the slot number the beacon is using. + * @streams: bitmap of streams allocated to reservations targeted at + * this device. For an RC, this is the streams allocated for + * reservations targeted at DevAddrs. + * + * A UWB device may either by a neighbor or part of a local radio + * controller. + */ +struct uwb_dev { + struct mutex mutex; + struct list_head list_node; + struct device dev; + struct uwb_rc *rc; /* radio controller */ + struct uwb_beca_e *bce; /* Beacon Cache Entry */ + + struct uwb_mac_addr mac_addr; + struct uwb_dev_addr dev_addr; + int beacon_slot; + DECLARE_BITMAP(streams, UWB_NUM_STREAMS); +}; +#define to_uwb_dev(d) container_of(d, struct uwb_dev, dev) + +/** + * UWB HWA/WHCI Radio Control {Command|Event} Block context IDs + * + * RC[CE]Bs have a 'context ID' field that matches the command with + * the event received to confirm it. + * + * Maximum number of context IDs + */ +enum { UWB_RC_CTX_MAX = 256 }; + + +/** Notification chain head for UWB generated events to listeners */ +struct uwb_notifs_chain { + struct list_head list; + struct mutex mutex; +}; + +/** + * struct uwb_mas_bm - a bitmap of all MAS in a superframe + * @bm: a bitmap of length #UWB_NUM_MAS + */ +struct uwb_mas_bm { + DECLARE_BITMAP(bm, UWB_NUM_MAS); +}; + +/** + * uwb_rsv_state - UWB Reservation state. + * + * NONE - reservation is not active (no DRP IE being transmitted). + * + * Owner reservation states: + * + * INITIATED - owner has sent an initial DRP request. + * PENDING - target responded with pending Reason Code. + * MODIFIED - reservation manager is modifying an established + * reservation with a different MAS allocation. + * ESTABLISHED - the reservation has been successfully negotiated. + * + * Target reservation states: + * + * DENIED - request is denied. + * ACCEPTED - request is accepted. + * PENDING - PAL has yet to make a decision to whether to accept or + * deny. + * + * FIXME: further target states TBD. + */ +enum uwb_rsv_state { + UWB_RSV_STATE_NONE, + UWB_RSV_STATE_O_INITIATED, + UWB_RSV_STATE_O_PENDING, + UWB_RSV_STATE_O_MODIFIED, + UWB_RSV_STATE_O_ESTABLISHED, + UWB_RSV_STATE_T_ACCEPTED, + UWB_RSV_STATE_T_DENIED, + UWB_RSV_STATE_T_PENDING, + + UWB_RSV_STATE_LAST, +}; + +enum uwb_rsv_target_type { + UWB_RSV_TARGET_DEV, + UWB_RSV_TARGET_DEVADDR, +}; + +/** + * struct uwb_rsv_target - the target of a reservation. + * + * Reservations unicast and targeted at a single device + * (UWB_RSV_TARGET_DEV); or (e.g., in the case of WUSB) targeted at a + * specific (private) DevAddr (UWB_RSV_TARGET_DEVADDR). + */ +struct uwb_rsv_target { + enum uwb_rsv_target_type type; + union { + struct uwb_dev *dev; + struct uwb_dev_addr devaddr; + }; +}; + +/* + * Number of streams reserved for reservations targeted at DevAddrs. + */ +#define UWB_NUM_GLOBAL_STREAMS 1 + +typedef void (*uwb_rsv_cb_f)(struct uwb_rsv *rsv); + +/** + * struct uwb_rsv - a DRP reservation + * + * Data structure management: + * + * @rc: the radio controller this reservation is for + * (as target or owner) + * @rc_node: a list node for the RC + * @pal_node: a list node for the PAL + * + * Owner and target parameters: + * + * @owner: the UWB device owning this reservation + * @target: the target UWB device + * @type: reservation type + * + * Owner parameters: + * + * @max_mas: maxiumum number of MAS + * @min_mas: minimum number of MAS + * @sparsity: owner selected sparsity + * @is_multicast: true iff multicast + * + * @callback: callback function when the reservation completes + * @pal_priv: private data for the PAL making the reservation + * + * Reservation status: + * + * @status: negotiation status + * @stream: stream index allocated for this reservation + * @mas: reserved MAS + * @drp_ie: the DRP IE + * @ie_valid: true iff the DRP IE matches the reservation parameters + * + * DRP reservations are uniquely identified by the owner, target and + * stream index. However, when using a DevAddr as a target (e.g., for + * a WUSB cluster reservation) the responses may be received from + * devices with different DevAddrs. In this case, reservations are + * uniquely identified by just the stream index. A number of stream + * indexes (UWB_NUM_GLOBAL_STREAMS) are reserved for this. + */ +struct uwb_rsv { + struct uwb_rc *rc; + struct list_head rc_node; + struct list_head pal_node; + + struct uwb_dev *owner; + struct uwb_rsv_target target; + enum uwb_drp_type type; + int max_mas; + int min_mas; + int sparsity; + bool is_multicast; + + uwb_rsv_cb_f callback; + void *pal_priv; + + enum uwb_rsv_state state; + u8 stream; + struct uwb_mas_bm mas; + struct uwb_ie_drp *drp_ie; + bool ie_valid; + struct timer_list timer; + bool expired; +}; + +static const +struct uwb_mas_bm uwb_mas_bm_zero = { .bm = { 0 } }; + +static inline void uwb_mas_bm_copy_le(void *dst, const struct uwb_mas_bm *mas) +{ + bitmap_copy_le(dst, mas->bm, UWB_NUM_MAS); +} + +/** + * struct uwb_drp_avail - a radio controller's view of MAS usage + * @global: MAS unused by neighbors (excluding reservations targetted + * or owned by the local radio controller) or the beaon period + * @local: MAS unused by local established reservations + * @pending: MAS unused by local pending reservations + * @ie: DRP Availability IE to be included in the beacon + * @ie_valid: true iff @ie is valid and does not need to regenerated from + * @global and @local + * + * Each radio controller maintains a view of MAS usage or + * availability. MAS available for a new reservation are determined + * from the intersection of @global, @local, and @pending. + * + * The radio controller must transmit a DRP Availability IE that's the + * intersection of @global and @local. + * + * A set bit indicates the MAS is unused and available. + * + * rc->rsvs_mutex should be held before accessing this data structure. + * + * [ECMA-368] section 17.4.3. + */ +struct uwb_drp_avail { + DECLARE_BITMAP(global, UWB_NUM_MAS); + DECLARE_BITMAP(local, UWB_NUM_MAS); + DECLARE_BITMAP(pending, UWB_NUM_MAS); + struct uwb_ie_drp_avail ie; + bool ie_valid; +}; + + +const char *uwb_rsv_state_str(enum uwb_rsv_state state); +const char *uwb_rsv_type_str(enum uwb_drp_type type); + +struct uwb_rsv *uwb_rsv_create(struct uwb_rc *rc, uwb_rsv_cb_f cb, + void *pal_priv); +void uwb_rsv_destroy(struct uwb_rsv *rsv); + +int uwb_rsv_establish(struct uwb_rsv *rsv); +int uwb_rsv_modify(struct uwb_rsv *rsv, + int max_mas, int min_mas, int sparsity); +void uwb_rsv_terminate(struct uwb_rsv *rsv); + +void uwb_rsv_accept(struct uwb_rsv *rsv, uwb_rsv_cb_f cb, void *pal_priv); + +/** + * Radio Control Interface instance + * + * + * Life cycle rules: those of the UWB Device. + * + * @index: an index number for this radio controller, as used in the + * device name. + * @version: version of protocol supported by this device + * @priv: Backend implementation; rw with uwb_dev.dev.sem taken. + * @cmd: Backend implementation to execute commands; rw and call + * only with uwb_dev.dev.sem taken. + * @reset: Hardware reset of radio controller and any PAL controllers. + * @filter: Backend implementation to manipulate data to and from device + * to be compliant to specification assumed by driver (WHCI + * 0.95). + * + * uwb_dev.dev.mutex is used to execute commands and update + * the corresponding structures; can't use a spinlock + * because rc->cmd() can sleep. + * @ies: This is a dynamically allocated array cacheing the + * IEs (settable by the host) that the beacon of this + * radio controller is currently sending. + * + * In reality, we store here the full command we set to + * the radio controller (which is basically a command + * prefix followed by all the IEs the beacon currently + * contains). This way we don't have to realloc and + * memcpy when setting it. + * + * We set this up in uwb_rc_ie_setup(), where we alloc + * this struct, call get_ie() [so we know which IEs are + * currently being sent, if any]. + * + * @ies_capacity:Amount of space (in bytes) allocated in @ies. The + * amount used is given by sizeof(*ies) plus ies->wIELength + * (which is a little endian quantity all the time). + * @ies_mutex: protect the IE cache + * @dbg: information for the debug interface + */ +struct uwb_rc { + struct uwb_dev uwb_dev; + int index; + u16 version; + + struct module *owner; + void *priv; + int (*start)(struct uwb_rc *rc); + void (*stop)(struct uwb_rc *rc); + int (*cmd)(struct uwb_rc *, const struct uwb_rccb *, size_t); + int (*reset)(struct uwb_rc *rc); + int (*filter_cmd)(struct uwb_rc *, struct uwb_rccb **, size_t *); + int (*filter_event)(struct uwb_rc *, struct uwb_rceb **, const size_t, + size_t *, size_t *); + + spinlock_t neh_lock; /* protects neh_* and ctx_* */ + struct list_head neh_list; /* Open NE handles */ + unsigned long ctx_bm[UWB_RC_CTX_MAX / 8 / sizeof(unsigned long)]; + u8 ctx_roll; + + int beaconing; /* Beaconing state [channel number] */ + int scanning; + enum uwb_scan_type scan_type:3; + unsigned ready:1; + struct uwb_notifs_chain notifs_chain; + + struct uwb_drp_avail drp_avail; + struct list_head reservations; + struct mutex rsvs_mutex; + struct workqueue_struct *rsv_workq; + struct work_struct rsv_update_work; + + struct mutex ies_mutex; + struct uwb_rc_cmd_set_ie *ies; + size_t ies_capacity; + + spinlock_t pal_lock; + struct list_head pals; + + struct uwb_dbg *dbg; +}; + + +/** + * struct uwb_pal - a UWB PAL + * @name: descriptive name for this PAL (wushc, wlp, etc.). + * @device: a device for the PAL. Used to link the PAL and the radio + * controller in sysfs. + * @new_rsv: called when a peer requests a reservation (may be NULL if + * the PAL cannot accept reservation requests). + * + * A Protocol Adaptation Layer (PAL) is a user of the WiMedia UWB + * radio platform (e.g., WUSB, WLP or Bluetooth UWB AMP). + * + * The PALs using a radio controller must register themselves to + * permit the UWB stack to coordinate usage of the radio between the + * various PALs or to allow PALs to response to certain requests from + * peers. + * + * A struct uwb_pal should be embedded in a containing structure + * belonging to the PAL and initialized with uwb_pal_init()). Fields + * should be set appropriately by the PAL before registering the PAL + * with uwb_pal_register(). + */ +struct uwb_pal { + struct list_head node; + const char *name; + struct device *device; + void (*new_rsv)(struct uwb_rsv *rsv); +}; + +void uwb_pal_init(struct uwb_pal *pal); +int uwb_pal_register(struct uwb_rc *rc, struct uwb_pal *pal); +void uwb_pal_unregister(struct uwb_rc *rc, struct uwb_pal *pal); + +/* + * General public API + * + * This API can be used by UWB device drivers or by those implementing + * UWB Radio Controllers + */ +struct uwb_dev *uwb_dev_get_by_devaddr(struct uwb_rc *rc, + const struct uwb_dev_addr *devaddr); +struct uwb_dev *uwb_dev_get_by_rc(struct uwb_dev *, struct uwb_rc *); +static inline void uwb_dev_get(struct uwb_dev *uwb_dev) +{ + get_device(&uwb_dev->dev); +} +static inline void uwb_dev_put(struct uwb_dev *uwb_dev) +{ + put_device(&uwb_dev->dev); +} +struct uwb_dev *uwb_dev_try_get(struct uwb_rc *rc, struct uwb_dev *uwb_dev); + +/** + * Callback function for 'uwb_{dev,rc}_foreach()'. + * + * @dev: Linux device instance + * 'uwb_dev = container_of(dev, struct uwb_dev, dev)' + * @priv: Data passed by the caller to 'uwb_{dev,rc}_foreach()'. + * + * @returns: 0 to continue the iterations, any other val to stop + * iterating and return the value to the caller of + * _foreach(). + */ +typedef int (*uwb_dev_for_each_f)(struct device *dev, void *priv); +int uwb_dev_for_each(struct uwb_rc *rc, uwb_dev_for_each_f func, void *priv); + +struct uwb_rc *uwb_rc_alloc(void); +struct uwb_rc *uwb_rc_get_by_dev(const struct uwb_dev_addr *); +struct uwb_rc *uwb_rc_get_by_grandpa(const struct device *); +void uwb_rc_put(struct uwb_rc *rc); + +typedef void (*uwb_rc_cmd_cb_f)(struct uwb_rc *rc, void *arg, + struct uwb_rceb *reply, ssize_t reply_size); + +int uwb_rc_cmd_async(struct uwb_rc *rc, const char *cmd_name, + struct uwb_rccb *cmd, size_t cmd_size, + u8 expected_type, u16 expected_event, + uwb_rc_cmd_cb_f cb, void *arg); +ssize_t uwb_rc_cmd(struct uwb_rc *rc, const char *cmd_name, + struct uwb_rccb *cmd, size_t cmd_size, + struct uwb_rceb *reply, size_t reply_size); +ssize_t uwb_rc_vcmd(struct uwb_rc *rc, const char *cmd_name, + struct uwb_rccb *cmd, size_t cmd_size, + u8 expected_type, u16 expected_event, + struct uwb_rceb **preply); +ssize_t uwb_rc_get_ie(struct uwb_rc *, struct uwb_rc_evt_get_ie **); +int uwb_bg_joined(struct uwb_rc *rc); + +size_t __uwb_addr_print(char *, size_t, const unsigned char *, int); + +int uwb_rc_dev_addr_set(struct uwb_rc *, const struct uwb_dev_addr *); +int uwb_rc_dev_addr_get(struct uwb_rc *, struct uwb_dev_addr *); +int uwb_rc_mac_addr_set(struct uwb_rc *, const struct uwb_mac_addr *); +int uwb_rc_mac_addr_get(struct uwb_rc *, struct uwb_mac_addr *); +int __uwb_mac_addr_assigned_check(struct device *, void *); +int __uwb_dev_addr_assigned_check(struct device *, void *); + +/* Print in @buf a pretty repr of @addr */ +static inline size_t uwb_dev_addr_print(char *buf, size_t buf_size, + const struct uwb_dev_addr *addr) +{ + return __uwb_addr_print(buf, buf_size, addr->data, 0); +} + +/* Print in @buf a pretty repr of @addr */ +static inline size_t uwb_mac_addr_print(char *buf, size_t buf_size, + const struct uwb_mac_addr *addr) +{ + return __uwb_addr_print(buf, buf_size, addr->data, 1); +} + +/* @returns 0 if device addresses @addr2 and @addr1 are equal */ +static inline int uwb_dev_addr_cmp(const struct uwb_dev_addr *addr1, + const struct uwb_dev_addr *addr2) +{ + return memcmp(addr1, addr2, sizeof(*addr1)); +} + +/* @returns 0 if MAC addresses @addr2 and @addr1 are equal */ +static inline int uwb_mac_addr_cmp(const struct uwb_mac_addr *addr1, + const struct uwb_mac_addr *addr2) +{ + return memcmp(addr1, addr2, sizeof(*addr1)); +} + +/* @returns !0 if a MAC @addr is a broadcast address */ +static inline int uwb_mac_addr_bcast(const struct uwb_mac_addr *addr) +{ + struct uwb_mac_addr bcast = { + .data = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } + }; + return !uwb_mac_addr_cmp(addr, &bcast); +} + +/* @returns !0 if a MAC @addr is all zeroes*/ +static inline int uwb_mac_addr_unset(const struct uwb_mac_addr *addr) +{ + struct uwb_mac_addr unset = { + .data = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } + }; + return !uwb_mac_addr_cmp(addr, &unset); +} + +/* @returns !0 if the address is in use. */ +static inline unsigned __uwb_dev_addr_assigned(struct uwb_rc *rc, + struct uwb_dev_addr *addr) +{ + return uwb_dev_for_each(rc, __uwb_dev_addr_assigned_check, addr); +} + +/* + * UWB Radio Controller API + * + * This API is used (in addition to the general API) to implement UWB + * Radio Controllers. + */ +void uwb_rc_init(struct uwb_rc *); +int uwb_rc_add(struct uwb_rc *, struct device *dev, void *rc_priv); +void uwb_rc_rm(struct uwb_rc *); +void uwb_rc_neh_grok(struct uwb_rc *, void *, size_t); +void uwb_rc_neh_error(struct uwb_rc *, int); +void uwb_rc_reset_all(struct uwb_rc *rc); + +/** + * uwb_rsv_is_owner - is the owner of this reservation the RC? + * @rsv: the reservation + */ +static inline bool uwb_rsv_is_owner(struct uwb_rsv *rsv) +{ + return rsv->owner == &rsv->rc->uwb_dev; +} + +/** + * Events generated by UWB that can be passed to any listeners + * + * Higher layers can register callback functions with the radio + * controller using uwb_notifs_register(). The radio controller + * maintains a list of all registered handlers and will notify all + * nodes when an event occurs. + */ +enum uwb_notifs { + UWB_NOTIF_BG_JOIN = 0, /* radio controller joined a beacon group */ + UWB_NOTIF_BG_LEAVE = 1, /* radio controller left a beacon group */ + UWB_NOTIF_ONAIR, + UWB_NOTIF_OFFAIR, +}; + +/* Callback function registered with UWB */ +struct uwb_notifs_handler { + struct list_head list_node; + void (*cb)(void *, struct uwb_dev *, enum uwb_notifs); + void *data; +}; + +int uwb_notifs_register(struct uwb_rc *, struct uwb_notifs_handler *); +int uwb_notifs_deregister(struct uwb_rc *, struct uwb_notifs_handler *); + + +/** + * UWB radio controller Event Size Entry (for creating entry tables) + * + * WUSB and WHCI define events and notifications, and they might have + * fixed or variable size. + * + * Each event/notification has a size which is not necessarily known + * in advance based on the event code. As well, vendor specific + * events/notifications will have a size impossible to determine + * unless we know about the device's specific details. + * + * It was way too smart of the spec writers not to think that it would + * be impossible for a generic driver to skip over vendor specific + * events/notifications if there are no LENGTH fields in the HEADER of + * each message...the transaction size cannot be counted on as the + * spec does not forbid to pack more than one event in a single + * transaction. + * + * Thus, we guess sizes with tables (or for events, when you know the + * size ahead of time you can use uwb_rc_neh_extra_size*()). We + * register tables with the known events and their sizes, and then we + * traverse those tables. For those with variable length, we provide a + * way to lookup the size inside the event/notification's + * payload. This allows device-specific event size tables to be + * registered. + * + * @size: Size of the payload + * + * @offset: if != 0, at offset @offset-1 starts a field with a length + * that has to be added to @size. The format of the field is + * given by @type. + * + * @type: Type and length of the offset field. Most common is LE 16 + * bits (that's why that is zero); others are there mostly to + * cover for bugs and weirdos. + */ +struct uwb_est_entry { + size_t size; + unsigned offset; + enum { UWB_EST_16 = 0, UWB_EST_8 = 1 } type; +}; + +int uwb_est_register(u8 type, u8 code_high, u16 vendor, u16 product, + const struct uwb_est_entry *, size_t entries); +int uwb_est_unregister(u8 type, u8 code_high, u16 vendor, u16 product, + const struct uwb_est_entry *, size_t entries); +ssize_t uwb_est_find_size(struct uwb_rc *rc, const struct uwb_rceb *rceb, + size_t len); + +/* -- Misc */ + +enum { + EDC_MAX_ERRORS = 10, + EDC_ERROR_TIMEFRAME = HZ, +}; + +/* error density counter */ +struct edc { + unsigned long timestart; + u16 errorcount; +}; + +static inline +void edc_init(struct edc *edc) +{ + edc->timestart = jiffies; +} + +/* Called when an error occured. + * This is way to determine if the number of acceptable errors per time + * period has been exceeded. It is not accurate as there are cases in which + * this scheme will not work, for example if there are periodic occurences + * of errors that straddle updates to the start time. This scheme is + * sufficient for our usage. + * + * @returns 1 if maximum acceptable errors per timeframe has been exceeded. + */ +static inline int edc_inc(struct edc *err_hist, u16 max_err, u16 timeframe) +{ + unsigned long now; + + now = jiffies; + if (now - err_hist->timestart > timeframe) { + err_hist->errorcount = 1; + err_hist->timestart = now; + } else if (++err_hist->errorcount > max_err) { + err_hist->errorcount = 0; + err_hist->timestart = now; + return 1; + } + return 0; +} + + +/* Information Element handling */ + +/* For representing the state of writing to a buffer when iterating */ +struct uwb_buf_ctx { + char *buf; + size_t bytes, size; +}; + +typedef int (*uwb_ie_f)(struct uwb_dev *, const struct uwb_ie_hdr *, + size_t, void *); +struct uwb_ie_hdr *uwb_ie_next(void **ptr, size_t *len); +ssize_t uwb_ie_for_each(struct uwb_dev *uwb_dev, uwb_ie_f fn, void *data, + const void *buf, size_t size); +int uwb_ie_dump_hex(struct uwb_dev *, const struct uwb_ie_hdr *, + size_t, void *); +int uwb_rc_set_ie(struct uwb_rc *, struct uwb_rc_cmd_set_ie *); +struct uwb_ie_hdr *uwb_ie_next(void **ptr, size_t *len); + + +/* + * Transmission statistics + * + * UWB uses LQI and RSSI (one byte values) for reporting radio signal + * strength and line quality indication. We do quick and dirty + * averages of those. They are signed values, btw. + * + * For 8 bit quantities, we keep the min, the max, an accumulator + * (@sigma) and a # of samples. When @samples gets to 255, we compute + * the average (@sigma / @samples), place it in @sigma and reset + * @samples to 1 (so we use it as the first sample). + * + * Now, statistically speaking, probably I am kicking the kidneys of + * some books I have in my shelves collecting dust, but I just want to + * get an approx, not the Nobel. + * + * LOCKING: there is no locking per se, but we try to keep a lockless + * schema. Only _add_samples() modifies the values--as long as you + * have other locking on top that makes sure that no two calls of + * _add_sample() happen at the same time, then we are fine. Now, for + * resetting the values we just set @samples to 0 and that makes the + * next _add_sample() to start with defaults. Reading the values in + * _show() currently can race, so you need to make sure the calls are + * under the same lock that protects calls to _add_sample(). FIXME: + * currently unlocked (It is not ultraprecise but does the trick. Bite + * me). + */ +struct stats { + s8 min, max; + s16 sigma; + atomic_t samples; +}; + +static inline +void stats_init(struct stats *stats) +{ + atomic_set(&stats->samples, 0); + wmb(); +} + +static inline +void stats_add_sample(struct stats *stats, s8 sample) +{ + s8 min, max; + s16 sigma; + unsigned samples = atomic_read(&stats->samples); + if (samples == 0) { /* it was zero before, so we initialize */ + min = 127; + max = -128; + sigma = 0; + } else { + min = stats->min; + max = stats->max; + sigma = stats->sigma; + } + + if (sample < min) /* compute new values */ + min = sample; + else if (sample > max) + max = sample; + sigma += sample; + + stats->min = min; /* commit */ + stats->max = max; + stats->sigma = sigma; + if (atomic_add_return(1, &stats->samples) > 255) { + /* wrapped around! reset */ + stats->sigma = sigma / 256; + atomic_set(&stats->samples, 1); + } +} + +static inline ssize_t stats_show(struct stats *stats, char *buf) +{ + int min, max, avg; + int samples = atomic_read(&stats->samples); + if (samples == 0) + min = max = avg = 0; + else { + min = stats->min; + max = stats->max; + avg = stats->sigma / samples; + } + return scnprintf(buf, PAGE_SIZE, "%d %d %d\n", min, max, avg); +} + +static inline ssize_t stats_store(struct stats *stats, const char *buf, + size_t size) +{ + stats_init(stats); + return size; +} + +#endif /* #ifndef __LINUX__UWB_H__ */ diff --git a/include/linux/uwb/debug-cmd.h b/include/linux/uwb/debug-cmd.h new file mode 100644 index 000000000000..1141f41bab5c --- /dev/null +++ b/include/linux/uwb/debug-cmd.h @@ -0,0 +1,57 @@ +/* + * Ultra Wide Band + * Debug interface commands + * + * Copyright (C) 2008 Cambridge Silicon Radio Ltd. + * + * 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, see <http://www.gnu.org/licenses/>. + */ +#ifndef __LINUX__UWB__DEBUG_CMD_H__ +#define __LINUX__UWB__DEBUG_CMD_H__ + +#include <linux/types.h> + +/* + * Debug interface commands + * + * UWB_DBG_CMD_RSV_ESTABLISH: Establish a new unicast reservation. + * + * UWB_DBG_CMD_RSV_TERMINATE: Terminate the Nth reservation. + */ + +enum uwb_dbg_cmd_type { + UWB_DBG_CMD_RSV_ESTABLISH = 1, + UWB_DBG_CMD_RSV_TERMINATE = 2, +}; + +struct uwb_dbg_cmd_rsv_establish { + __u8 target[6]; + __u8 type; + __u16 max_mas; + __u16 min_mas; + __u8 sparsity; +}; + +struct uwb_dbg_cmd_rsv_terminate { + int index; +}; + +struct uwb_dbg_cmd { + __u32 type; + union { + struct uwb_dbg_cmd_rsv_establish rsv_establish; + struct uwb_dbg_cmd_rsv_terminate rsv_terminate; + }; +}; + +#endif /* #ifndef __LINUX__UWB__DEBUG_CMD_H__ */ diff --git a/include/linux/uwb/debug.h b/include/linux/uwb/debug.h new file mode 100644 index 000000000000..a86a73fe303f --- /dev/null +++ b/include/linux/uwb/debug.h @@ -0,0 +1,82 @@ +/* + * Ultra Wide Band + * Debug Support + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * 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 Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: doc + * Invoke like: + * + * #define D_LOCAL 4 + * #include <linux/uwb/debug.h> + * + * At the end of your include files. + */ +#include <linux/types.h> + +struct device; +extern void dump_bytes(struct device *dev, const void *_buf, size_t rsize); + +/* Master debug switch; !0 enables, 0 disables */ +#define D_MASTER (!0) + +/* Local (per-file) debug switch; #define before #including */ +#ifndef D_LOCAL +#define D_LOCAL 0 +#endif + +#undef __d_printf +#undef d_fnstart +#undef d_fnend +#undef d_printf +#undef d_dump + +#define __d_printf(l, _tag, _dev, f, a...) \ +do { \ + struct device *__dev = (_dev); \ + if (D_MASTER && D_LOCAL >= (l)) { \ + char __head[64] = ""; \ + if (_dev != NULL) { \ + if ((unsigned long)__dev < 4096) \ + printk(KERN_ERR "E: Corrupt dev %p\n", \ + __dev); \ + else \ + snprintf(__head, sizeof(__head), \ + "%s %s: ", \ + dev_driver_string(__dev), \ + __dev->bus_id); \ + } \ + printk(KERN_ERR "%s%s" _tag ": " f, __head, \ + __func__, ## a); \ + } \ +} while (0 && _dev) + +#define d_fnstart(l, _dev, f, a...) \ + __d_printf(l, " FNSTART", _dev, f, ## a) +#define d_fnend(l, _dev, f, a...) \ + __d_printf(l, " FNEND", _dev, f, ## a) +#define d_printf(l, _dev, f, a...) \ + __d_printf(l, "", _dev, f, ## a) +#define d_dump(l, _dev, ptr, size) \ +do { \ + struct device *__dev = _dev; \ + if (D_MASTER && D_LOCAL >= (l)) \ + dump_bytes(__dev, ptr, size); \ +} while (0 && _dev) +#define d_test(l) (D_MASTER && D_LOCAL >= (l)) diff --git a/include/linux/uwb/spec.h b/include/linux/uwb/spec.h new file mode 100644 index 000000000000..198c15f8e251 --- /dev/null +++ b/include/linux/uwb/spec.h @@ -0,0 +1,727 @@ +/* + * Ultra Wide Band + * UWB Standard definitions + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * 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 Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * All these definitions are based on the ECMA-368 standard. + * + * Note all definitions are Little Endian in the wire, and we will + * convert them to host order before operating on the bitfields (that + * yes, we use extensively). + */ + +#ifndef __LINUX__UWB_SPEC_H__ +#define __LINUX__UWB_SPEC_H__ + +#include <linux/types.h> +#include <linux/bitmap.h> + +#define i1480_FW 0x00000303 +/* #define i1480_FW 0x00000302 */ + +/** + * Number of Medium Access Slots in a superframe. + * + * UWB divides time in SuperFrames, each one divided in 256 pieces, or + * Medium Access Slots. See MBOA MAC[5.4.5] for details. The MAS is the + * basic bandwidth allocation unit in UWB. + */ +enum { UWB_NUM_MAS = 256 }; + +/** + * Number of Zones in superframe. + * + * UWB divides the superframe into zones with numbering starting from BPST. + * See MBOA MAC[16.8.6] + */ +enum { UWB_NUM_ZONES = 16 }; + +/* + * Number of MAS in a zone. + */ +#define UWB_MAS_PER_ZONE (UWB_NUM_MAS / UWB_NUM_ZONES) + +/* + * Number of streams per DRP reservation between a pair of devices. + * + * [ECMA-368] section 16.8.6. + */ +enum { UWB_NUM_STREAMS = 8 }; + +/* + * mMasLength + * + * The length of a MAS in microseconds. + * + * [ECMA-368] section 17.16. + */ +enum { UWB_MAS_LENGTH_US = 256 }; + +/* + * mBeaconSlotLength + * + * The length of the beacon slot in microseconds. + * + * [ECMA-368] section 17.16 + */ +enum { UWB_BEACON_SLOT_LENGTH_US = 85 }; + +/* + * mMaxLostBeacons + * + * The number beacons missing in consecutive superframes before a + * device can be considered as unreachable. + * + * [ECMA-368] section 17.16 + */ +enum { UWB_MAX_LOST_BEACONS = 3 }; + +/* + * Length of a superframe in microseconds. + */ +#define UWB_SUPERFRAME_LENGTH_US (UWB_MAS_LENGTH_US * UWB_NUM_MAS) + +/** + * UWB MAC address + * + * It is *imperative* that this struct is exactly 6 packed bytes (as + * it is also used to define headers sent down and up the wire/radio). + */ +struct uwb_mac_addr { + u8 data[6]; +} __attribute__((packed)); + + +/** + * UWB device address + * + * It is *imperative* that this struct is exactly 6 packed bytes (as + * it is also used to define headers sent down and up the wire/radio). + */ +struct uwb_dev_addr { + u8 data[2]; +} __attribute__((packed)); + + +/** + * Types of UWB addresses + * + * Order matters (by size). + */ +enum uwb_addr_type { + UWB_ADDR_DEV = 0, + UWB_ADDR_MAC = 1, +}; + + +/** Size of a char buffer for printing a MAC/device address */ +enum { UWB_ADDR_STRSIZE = 32 }; + + +/** UWB WiMedia protocol IDs. */ +enum uwb_prid { + UWB_PRID_WLP_RESERVED = 0x0000, + UWB_PRID_WLP = 0x0001, + UWB_PRID_WUSB_BOT = 0x0010, + UWB_PRID_WUSB = 0x0010, + UWB_PRID_WUSB_TOP = 0x001F, +}; + + +/** PHY Rate (MBOA MAC[7.8.12, Table 61]) */ +enum uwb_phy_rate { + UWB_PHY_RATE_53 = 0, + UWB_PHY_RATE_80, + UWB_PHY_RATE_106, + UWB_PHY_RATE_160, + UWB_PHY_RATE_200, + UWB_PHY_RATE_320, + UWB_PHY_RATE_400, + UWB_PHY_RATE_480, + UWB_PHY_RATE_INVALID +}; + + +/** + * Different ways to scan (MBOA MAC[6.2.2, Table 8], WUSB[Table 8-78]) + */ +enum uwb_scan_type { + UWB_SCAN_ONLY = 0, + UWB_SCAN_OUTSIDE_BP, + UWB_SCAN_WHILE_INACTIVE, + UWB_SCAN_DISABLED, + UWB_SCAN_ONLY_STARTTIME, + UWB_SCAN_TOP +}; + + +/** ACK Policy types (MBOA MAC[7.2.1.3]) */ +enum uwb_ack_pol { + UWB_ACK_NO = 0, + UWB_ACK_INM = 1, + UWB_ACK_B = 2, + UWB_ACK_B_REQ = 3, +}; + + +/** DRP reservation types ([ECMA-368 table 106) */ +enum uwb_drp_type { + UWB_DRP_TYPE_ALIEN_BP = 0, + UWB_DRP_TYPE_HARD, + UWB_DRP_TYPE_SOFT, + UWB_DRP_TYPE_PRIVATE, + UWB_DRP_TYPE_PCA, +}; + + +/** DRP Reason Codes ([ECMA-368] table 107) */ +enum uwb_drp_reason { + UWB_DRP_REASON_ACCEPTED = 0, + UWB_DRP_REASON_CONFLICT, + UWB_DRP_REASON_PENDING, + UWB_DRP_REASON_DENIED, + UWB_DRP_REASON_MODIFIED, +}; + +/** + * DRP Notification Reason Codes (WHCI 0.95 [3.1.4.9]) + */ +enum uwb_drp_notif_reason { + UWB_DRP_NOTIF_DRP_IE_RCVD = 0, + UWB_DRP_NOTIF_CONFLICT, + UWB_DRP_NOTIF_TERMINATE, +}; + + +/** Allocation of MAS slots in a DRP request MBOA MAC[7.8.7] */ +struct uwb_drp_alloc { + __le16 zone_bm; + __le16 mas_bm; +} __attribute__((packed)); + + +/** General MAC Header format (ECMA-368[16.2]) */ +struct uwb_mac_frame_hdr { + __le16 Frame_Control; + struct uwb_dev_addr DestAddr; + struct uwb_dev_addr SrcAddr; + __le16 Sequence_Control; + __le16 Access_Information; +} __attribute__((packed)); + + +/** + * uwb_beacon_frame - a beacon frame including MAC headers + * + * [ECMA] section 16.3. + */ +struct uwb_beacon_frame { + struct uwb_mac_frame_hdr hdr; + struct uwb_mac_addr Device_Identifier; /* may be a NULL EUI-48 */ + u8 Beacon_Slot_Number; + u8 Device_Control; + u8 IEData[]; +} __attribute__((packed)); + + +/** Information Element codes (MBOA MAC[T54]) */ +enum uwb_ie { + UWB_PCA_AVAILABILITY = 2, + UWB_IE_DRP_AVAILABILITY = 8, + UWB_IE_DRP = 9, + UWB_BP_SWITCH_IE = 11, + UWB_MAC_CAPABILITIES_IE = 12, + UWB_PHY_CAPABILITIES_IE = 13, + UWB_APP_SPEC_PROBE_IE = 15, + UWB_IDENTIFICATION_IE = 19, + UWB_MASTER_KEY_ID_IE = 20, + UWB_IE_WLP = 250, /* WiMedia Logical Link Control Protocol WLP 0.99 */ + UWB_APP_SPEC_IE = 255, +}; + + +/** + * Header common to all Information Elements (IEs) + */ +struct uwb_ie_hdr { + u8 element_id; /* enum uwb_ie */ + u8 length; +} __attribute__((packed)); + + +/** Dynamic Reservation Protocol IE (MBOA MAC[7.8.6]) */ +struct uwb_ie_drp { + struct uwb_ie_hdr hdr; + __le16 drp_control; + struct uwb_dev_addr dev_addr; + struct uwb_drp_alloc allocs[]; +} __attribute__((packed)); + +static inline int uwb_ie_drp_type(struct uwb_ie_drp *ie) +{ + return (le16_to_cpu(ie->drp_control) >> 0) & 0x7; +} + +static inline int uwb_ie_drp_stream_index(struct uwb_ie_drp *ie) +{ + return (le16_to_cpu(ie->drp_control) >> 3) & 0x7; +} + +static inline int uwb_ie_drp_reason_code(struct uwb_ie_drp *ie) +{ + return (le16_to_cpu(ie->drp_control) >> 6) & 0x7; +} + +static inline int uwb_ie_drp_status(struct uwb_ie_drp *ie) +{ + return (le16_to_cpu(ie->drp_control) >> 9) & 0x1; +} + +static inline int uwb_ie_drp_owner(struct uwb_ie_drp *ie) +{ + return (le16_to_cpu(ie->drp_control) >> 10) & 0x1; +} + +static inline int uwb_ie_drp_tiebreaker(struct uwb_ie_drp *ie) +{ + return (le16_to_cpu(ie->drp_control) >> 11) & 0x1; +} + +static inline int uwb_ie_drp_unsafe(struct uwb_ie_drp *ie) +{ + return (le16_to_cpu(ie->drp_control) >> 12) & 0x1; +} + +static inline void uwb_ie_drp_set_type(struct uwb_ie_drp *ie, enum uwb_drp_type type) +{ + u16 drp_control = le16_to_cpu(ie->drp_control); + drp_control = (drp_control & ~(0x7 << 0)) | (type << 0); + ie->drp_control = cpu_to_le16(drp_control); +} + +static inline void uwb_ie_drp_set_stream_index(struct uwb_ie_drp *ie, int stream_index) +{ + u16 drp_control = le16_to_cpu(ie->drp_control); + drp_control = (drp_control & ~(0x7 << 3)) | (stream_index << 3); + ie->drp_control = cpu_to_le16(drp_control); +} + +static inline void uwb_ie_drp_set_reason_code(struct uwb_ie_drp *ie, + enum uwb_drp_reason reason_code) +{ + u16 drp_control = le16_to_cpu(ie->drp_control); + drp_control = (ie->drp_control & ~(0x7 << 6)) | (reason_code << 6); + ie->drp_control = cpu_to_le16(drp_control); +} + +static inline void uwb_ie_drp_set_status(struct uwb_ie_drp *ie, int status) +{ + u16 drp_control = le16_to_cpu(ie->drp_control); + drp_control = (drp_control & ~(0x1 << 9)) | (status << 9); + ie->drp_control = cpu_to_le16(drp_control); +} + +static inline void uwb_ie_drp_set_owner(struct uwb_ie_drp *ie, int owner) +{ + u16 drp_control = le16_to_cpu(ie->drp_control); + drp_control = (drp_control & ~(0x1 << 10)) | (owner << 10); + ie->drp_control = cpu_to_le16(drp_control); +} + +static inline void uwb_ie_drp_set_tiebreaker(struct uwb_ie_drp *ie, int tiebreaker) +{ + u16 drp_control = le16_to_cpu(ie->drp_control); + drp_control = (drp_control & ~(0x1 << 11)) | (tiebreaker << 11); + ie->drp_control = cpu_to_le16(drp_control); +} + +static inline void uwb_ie_drp_set_unsafe(struct uwb_ie_drp *ie, int unsafe) +{ + u16 drp_control = le16_to_cpu(ie->drp_control); + drp_control = (drp_control & ~(0x1 << 12)) | (unsafe << 12); + ie->drp_control = cpu_to_le16(drp_control); +} + +/** Dynamic Reservation Protocol IE (MBOA MAC[7.8.7]) */ +struct uwb_ie_drp_avail { + struct uwb_ie_hdr hdr; + DECLARE_BITMAP(bmp, UWB_NUM_MAS); +} __attribute__((packed)); + +/** + * The Vendor ID is set to an OUI that indicates the vendor of the device. + * ECMA-368 [16.8.10] + */ +struct uwb_vendor_id { + u8 data[3]; +} __attribute__((packed)); + +/** + * The device type ID + * FIXME: clarify what this means + * ECMA-368 [16.8.10] + */ +struct uwb_device_type_id { + u8 data[3]; +} __attribute__((packed)); + + +/** + * UWB device information types + * ECMA-368 [16.8.10] + */ +enum uwb_dev_info_type { + UWB_DEV_INFO_VENDOR_ID = 0, + UWB_DEV_INFO_VENDOR_TYPE, + UWB_DEV_INFO_NAME, +}; + +/** + * UWB device information found in Identification IE + * ECMA-368 [16.8.10] + */ +struct uwb_dev_info { + u8 type; /* enum uwb_dev_info_type */ + u8 length; + u8 data[]; +} __attribute__((packed)); + +/** + * UWB Identification IE + * ECMA-368 [16.8.10] + */ +struct uwb_identification_ie { + struct uwb_ie_hdr hdr; + struct uwb_dev_info info[]; +} __attribute__((packed)); + +/* + * UWB Radio Controller + * + * These definitions are common to the Radio Control layers as + * exported by the WUSB1.0 HWA and WHCI interfaces. + */ + +/** Radio Control Command Block (WUSB1.0[Table 8-65] and WHCI 0.95) */ +struct uwb_rccb { + u8 bCommandType; /* enum hwa_cet */ + __le16 wCommand; /* Command code */ + u8 bCommandContext; /* Context ID */ +} __attribute__((packed)); + + +/** Radio Control Event Block (WUSB[table 8-66], WHCI 0.95) */ +struct uwb_rceb { + u8 bEventType; /* enum hwa_cet */ + __le16 wEvent; /* Event code */ + u8 bEventContext; /* Context ID */ +} __attribute__((packed)); + + +enum { + UWB_RC_CET_GENERAL = 0, /* General Command/Event type */ + UWB_RC_CET_EX_TYPE_1 = 1, /* Extended Type 1 Command/Event type */ +}; + +/* Commands to the radio controller */ +enum uwb_rc_cmd { + UWB_RC_CMD_CHANNEL_CHANGE = 16, + UWB_RC_CMD_DEV_ADDR_MGMT = 17, /* Device Address Management */ + UWB_RC_CMD_GET_IE = 18, /* GET Information Elements */ + UWB_RC_CMD_RESET = 19, + UWB_RC_CMD_SCAN = 20, /* Scan management */ + UWB_RC_CMD_SET_BEACON_FILTER = 21, + UWB_RC_CMD_SET_DRP_IE = 22, /* Dynamic Reservation Protocol IEs */ + UWB_RC_CMD_SET_IE = 23, /* Information Element management */ + UWB_RC_CMD_SET_NOTIFICATION_FILTER = 24, + UWB_RC_CMD_SET_TX_POWER = 25, + UWB_RC_CMD_SLEEP = 26, + UWB_RC_CMD_START_BEACON = 27, + UWB_RC_CMD_STOP_BEACON = 28, + UWB_RC_CMD_BP_MERGE = 29, + UWB_RC_CMD_SEND_COMMAND_FRAME = 30, + UWB_RC_CMD_SET_ASIE_NOTIF = 31, +}; + +/* Notifications from the radio controller */ +enum uwb_rc_evt { + UWB_RC_EVT_IE_RCV = 0, + UWB_RC_EVT_BEACON = 1, + UWB_RC_EVT_BEACON_SIZE = 2, + UWB_RC_EVT_BPOIE_CHANGE = 3, + UWB_RC_EVT_BP_SLOT_CHANGE = 4, + UWB_RC_EVT_BP_SWITCH_IE_RCV = 5, + UWB_RC_EVT_DEV_ADDR_CONFLICT = 6, + UWB_RC_EVT_DRP_AVAIL = 7, + UWB_RC_EVT_DRP = 8, + UWB_RC_EVT_BP_SWITCH_STATUS = 9, + UWB_RC_EVT_CMD_FRAME_RCV = 10, + UWB_RC_EVT_CHANNEL_CHANGE_IE_RCV = 11, + /* Events (command responses) use the same code as the command */ + UWB_RC_EVT_UNKNOWN_CMD_RCV = 65535, +}; + +enum uwb_rc_extended_type_1_cmd { + UWB_RC_SET_DAA_ENERGY_MASK = 32, + UWB_RC_SET_NOTIFICATION_FILTER_EX = 33, +}; + +enum uwb_rc_extended_type_1_evt { + UWB_RC_DAA_ENERGY_DETECTED = 0, +}; + +/* Radio Control Result Code. [WHCI] table 3-3. */ +enum { + UWB_RC_RES_SUCCESS = 0, + UWB_RC_RES_FAIL, + UWB_RC_RES_FAIL_HARDWARE, + UWB_RC_RES_FAIL_NO_SLOTS, + UWB_RC_RES_FAIL_BEACON_TOO_LARGE, + UWB_RC_RES_FAIL_INVALID_PARAMETER, + UWB_RC_RES_FAIL_UNSUPPORTED_PWR_LEVEL, + UWB_RC_RES_FAIL_INVALID_IE_DATA, + UWB_RC_RES_FAIL_BEACON_SIZE_EXCEEDED, + UWB_RC_RES_FAIL_CANCELLED, + UWB_RC_RES_FAIL_INVALID_STATE, + UWB_RC_RES_FAIL_INVALID_SIZE, + UWB_RC_RES_FAIL_ACK_NOT_RECEIVED, + UWB_RC_RES_FAIL_NO_MORE_ASIE_NOTIF, + UWB_RC_RES_FAIL_TIME_OUT = 255, +}; + +/* Confirm event. [WHCI] section 3.1.3.1 etc. */ +struct uwb_rc_evt_confirm { + struct uwb_rceb rceb; + u8 bResultCode; +} __attribute__((packed)); + +/* Device Address Management event. [WHCI] section 3.1.3.2. */ +struct uwb_rc_evt_dev_addr_mgmt { + struct uwb_rceb rceb; + u8 baAddr[6]; + u8 bResultCode; +} __attribute__((packed)); + + +/* Get IE Event. [WHCI] section 3.1.3.3. */ +struct uwb_rc_evt_get_ie { + struct uwb_rceb rceb; + __le16 wIELength; + u8 IEData[]; +} __attribute__((packed)); + +/* Set DRP IE Event. [WHCI] section 3.1.3.7. */ +struct uwb_rc_evt_set_drp_ie { + struct uwb_rceb rceb; + __le16 wRemainingSpace; + u8 bResultCode; +} __attribute__((packed)); + +/* Set IE Event. [WHCI] section 3.1.3.8. */ +struct uwb_rc_evt_set_ie { + struct uwb_rceb rceb; + __le16 RemainingSpace; + u8 bResultCode; +} __attribute__((packed)); + +/* Scan command. [WHCI] 3.1.3.5. */ +struct uwb_rc_cmd_scan { + struct uwb_rccb rccb; + u8 bChannelNumber; + u8 bScanState; + __le16 wStartTime; +} __attribute__((packed)); + +/* Set DRP IE command. [WHCI] section 3.1.3.7. */ +struct uwb_rc_cmd_set_drp_ie { + struct uwb_rccb rccb; + __le16 wIELength; + struct uwb_ie_drp IEData[]; +} __attribute__((packed)); + +/* Set IE command. [WHCI] section 3.1.3.8. */ +struct uwb_rc_cmd_set_ie { + struct uwb_rccb rccb; + __le16 wIELength; + u8 IEData[]; +} __attribute__((packed)); + +/* Set DAA Energy Mask event. [WHCI 0.96] section 3.1.3.17. */ +struct uwb_rc_evt_set_daa_energy_mask { + struct uwb_rceb rceb; + __le16 wLength; + u8 result; +} __attribute__((packed)); + +/* Set Notification Filter Extended event. [WHCI 0.96] section 3.1.3.18. */ +struct uwb_rc_evt_set_notification_filter_ex { + struct uwb_rceb rceb; + __le16 wLength; + u8 result; +} __attribute__((packed)); + +/* IE Received notification. [WHCI] section 3.1.4.1. */ +struct uwb_rc_evt_ie_rcv { + struct uwb_rceb rceb; + struct uwb_dev_addr SrcAddr; + __le16 wIELength; + u8 IEData[]; +} __attribute__((packed)); + +/* Type of the received beacon. [WHCI] section 3.1.4.2. */ +enum uwb_rc_beacon_type { + UWB_RC_BEACON_TYPE_SCAN = 0, + UWB_RC_BEACON_TYPE_NEIGHBOR, + UWB_RC_BEACON_TYPE_OL_ALIEN, + UWB_RC_BEACON_TYPE_NOL_ALIEN, +}; + +/* Beacon received notification. [WHCI] 3.1.4.2. */ +struct uwb_rc_evt_beacon { + struct uwb_rceb rceb; + u8 bChannelNumber; + u8 bBeaconType; + __le16 wBPSTOffset; + u8 bLQI; + u8 bRSSI; + __le16 wBeaconInfoLength; + u8 BeaconInfo[]; +} __attribute__((packed)); + + +/* Beacon Size Change notification. [WHCI] section 3.1.4.3 */ +struct uwb_rc_evt_beacon_size { + struct uwb_rceb rceb; + __le16 wNewBeaconSize; +} __attribute__((packed)); + + +/* BPOIE Change notification. [WHCI] section 3.1.4.4. */ +struct uwb_rc_evt_bpoie_change { + struct uwb_rceb rceb; + __le16 wBPOIELength; + u8 BPOIE[]; +} __attribute__((packed)); + + +/* Beacon Slot Change notification. [WHCI] section 3.1.4.5. */ +struct uwb_rc_evt_bp_slot_change { + struct uwb_rceb rceb; + u8 slot_info; +} __attribute__((packed)); + +static inline int uwb_rc_evt_bp_slot_change_slot_num( + const struct uwb_rc_evt_bp_slot_change *evt) +{ + return evt->slot_info & 0x7f; +} + +static inline int uwb_rc_evt_bp_slot_change_no_slot( + const struct uwb_rc_evt_bp_slot_change *evt) +{ + return (evt->slot_info & 0x80) >> 7; +} + +/* BP Switch IE Received notification. [WHCI] section 3.1.4.6. */ +struct uwb_rc_evt_bp_switch_ie_rcv { + struct uwb_rceb rceb; + struct uwb_dev_addr wSrcAddr; + __le16 wIELength; + u8 IEData[]; +} __attribute__((packed)); + +/* DevAddr Conflict notification. [WHCI] section 3.1.4.7. */ +struct uwb_rc_evt_dev_addr_conflict { + struct uwb_rceb rceb; +} __attribute__((packed)); + +/* DRP notification. [WHCI] section 3.1.4.9. */ +struct uwb_rc_evt_drp { + struct uwb_rceb rceb; + struct uwb_dev_addr src_addr; + u8 reason; + u8 beacon_slot_number; + __le16 ie_length; + u8 ie_data[]; +} __attribute__((packed)); + +static inline enum uwb_drp_notif_reason uwb_rc_evt_drp_reason(struct uwb_rc_evt_drp *evt) +{ + return evt->reason & 0x0f; +} + + +/* DRP Availability Change notification. [WHCI] section 3.1.4.8. */ +struct uwb_rc_evt_drp_avail { + struct uwb_rceb rceb; + DECLARE_BITMAP(bmp, UWB_NUM_MAS); +} __attribute__((packed)); + +/* BP switch status notification. [WHCI] section 3.1.4.10. */ +struct uwb_rc_evt_bp_switch_status { + struct uwb_rceb rceb; + u8 status; + u8 slot_offset; + __le16 bpst_offset; + u8 move_countdown; +} __attribute__((packed)); + +/* Command Frame Received notification. [WHCI] section 3.1.4.11. */ +struct uwb_rc_evt_cmd_frame_rcv { + struct uwb_rceb rceb; + __le16 receive_time; + struct uwb_dev_addr wSrcAddr; + struct uwb_dev_addr wDstAddr; + __le16 control; + __le16 reserved; + __le16 dataLength; + u8 data[]; +} __attribute__((packed)); + +/* Channel Change IE Received notification. [WHCI] section 3.1.4.12. */ +struct uwb_rc_evt_channel_change_ie_rcv { + struct uwb_rceb rceb; + struct uwb_dev_addr wSrcAddr; + __le16 wIELength; + u8 IEData[]; +} __attribute__((packed)); + +/* DAA Energy Detected notification. [WHCI 0.96] section 3.1.4.14. */ +struct uwb_rc_evt_daa_energy_detected { + struct uwb_rceb rceb; + __le16 wLength; + u8 bandID; + u8 reserved; + u8 toneBmp[16]; +} __attribute__((packed)); + + +/** + * Radio Control Interface Class Descriptor + * + * WUSB 1.0 [8.6.1.2] + */ +struct uwb_rc_control_intf_class_desc { + u8 bLength; + u8 bDescriptorType; + __le16 bcdRCIVersion; +} __attribute__((packed)); + +#endif /* #ifndef __LINUX__UWB_SPEC_H__ */ diff --git a/include/linux/uwb/umc.h b/include/linux/uwb/umc.h new file mode 100644 index 000000000000..36a39e34f8d7 --- /dev/null +++ b/include/linux/uwb/umc.h @@ -0,0 +1,194 @@ +/* + * UWB Multi-interface Controller support. + * + * Copyright (C) 2007 Cambridge Silicon Radio Ltd. + * + * This file is released under the GPLv2 + * + * UMC (UWB Multi-interface Controller) capabilities (e.g., radio + * controller, host controller) are presented as devices on the "umc" + * bus. + * + * The radio controller is not strictly a UMC capability but it's + * useful to present it as such. + * + * References: + * + * [WHCI] Wireless Host Controller Interface Specification for + * Certified Wireless Universal Serial Bus, revision 0.95. + * + * How this works is kind of convoluted but simple. The whci.ko driver + * loads when WHCI devices are detected. These WHCI devices expose + * many devices in the same PCI function (they couldn't have reused + * functions, no), so for each PCI function that exposes these many + * devices, whci ceates a umc_dev [whci_probe() -> whci_add_cap()] + * with umc_device_create() and adds it to the bus with + * umc_device_register(). + * + * umc_device_register() calls device_register() which will push the + * bus management code to load your UMC driver's somehting_probe() + * that you have registered for that capability code. + * + * Now when the WHCI device is removed, whci_remove() will go over + * each umc_dev assigned to each of the PCI function's capabilities + * and through whci_del_cap() call umc_device_unregister() each + * created umc_dev. Of course, if you are bound to the device, your + * driver's something_remove() will be called. + */ + +#ifndef _LINUX_UWB_UMC_H_ +#define _LINUX_UWB_UMC_H_ + +#include <linux/device.h> +#include <linux/pci.h> + +/* + * UMC capability IDs. + * + * 0x00 is reserved so use it for the radio controller device. + * + * [WHCI] table 2-8 + */ +#define UMC_CAP_ID_WHCI_RC 0x00 /* radio controller */ +#define UMC_CAP_ID_WHCI_WUSB_HC 0x01 /* WUSB host controller */ + +/** + * struct umc_dev - UMC capability device + * + * @version: version of the specification this capability conforms to. + * @cap_id: capability ID. + * @bar: PCI Bar (64 bit) where the resource lies + * @resource: register space resource. + * @irq: interrupt line. + */ +struct umc_dev { + u16 version; + u8 cap_id; + u8 bar; + struct resource resource; + unsigned irq; + struct device dev; +}; + +#define to_umc_dev(d) container_of(d, struct umc_dev, dev) + +/** + * struct umc_driver - UMC capability driver + * @cap_id: supported capability ID. + * @match: driver specific capability matching function. + * @match_data: driver specific data for match() (e.g., a + * table of pci_device_id's if umc_match_pci_id() is used). + */ +struct umc_driver { + char *name; + u8 cap_id; + int (*match)(struct umc_driver *, struct umc_dev *); + const void *match_data; + + int (*probe)(struct umc_dev *); + void (*remove)(struct umc_dev *); + int (*suspend)(struct umc_dev *, pm_message_t state); + int (*resume)(struct umc_dev *); + + struct device_driver driver; +}; + +#define to_umc_driver(d) container_of(d, struct umc_driver, driver) + +extern struct bus_type umc_bus_type; + +struct umc_dev *umc_device_create(struct device *parent, int n); +int __must_check umc_device_register(struct umc_dev *umc); +void umc_device_unregister(struct umc_dev *umc); + +int __must_check __umc_driver_register(struct umc_driver *umc_drv, + struct module *mod, + const char *mod_name); + +/** + * umc_driver_register - register a UMC capabiltity driver. + * @umc_drv: pointer to the driver. + */ +static inline int __must_check umc_driver_register(struct umc_driver *umc_drv) +{ + return __umc_driver_register(umc_drv, THIS_MODULE, KBUILD_MODNAME); +} +void umc_driver_unregister(struct umc_driver *umc_drv); + +/* + * Utility function you can use to match (umc_driver->match) against a + * null-terminated array of 'struct pci_device_id' in + * umc_driver->match_data. + */ +int umc_match_pci_id(struct umc_driver *umc_drv, struct umc_dev *umc); + +/** + * umc_parent_pci_dev - return the UMC's parent PCI device or NULL if none + * @umc_dev: UMC device whose parent PCI device we are looking for + * + * DIRTY!!! DON'T RELY ON THIS + * + * FIXME: This is as dirty as it gets, but we need some way to check + * the correct type of umc_dev->parent (so that for example, we can + * cast to pci_dev). Casting to pci_dev is necesary because at some + * point we need to request resources from the device. Mapping is + * easily over come (ioremap and stuff are bus agnostic), but hooking + * up to some error handlers (such as pci error handlers) might need + * this. + * + * THIS might (probably will) be removed in the future, so don't count + * on it. + */ +static inline struct pci_dev *umc_parent_pci_dev(struct umc_dev *umc_dev) +{ + struct pci_dev *pci_dev = NULL; + if (umc_dev->dev.parent->bus == &pci_bus_type) + pci_dev = to_pci_dev(umc_dev->dev.parent); + return pci_dev; +} + +/** + * umc_dev_get() - reference a UMC device. + * @umc_dev: Pointer to UMC device. + * + * NOTE: we are assuming in this whole scheme that the parent device + * is referenced at _probe() time and unreferenced at _remove() + * time by the parent's subsystem. + */ +static inline struct umc_dev *umc_dev_get(struct umc_dev *umc_dev) +{ + get_device(&umc_dev->dev); + return umc_dev; +} + +/** + * umc_dev_put() - unreference a UMC device. + * @umc_dev: Pointer to UMC device. + */ +static inline void umc_dev_put(struct umc_dev *umc_dev) +{ + put_device(&umc_dev->dev); +} + +/** + * umc_set_drvdata - set UMC device's driver data. + * @umc_dev: Pointer to UMC device. + * @data: Data to set. + */ +static inline void umc_set_drvdata(struct umc_dev *umc_dev, void *data) +{ + dev_set_drvdata(&umc_dev->dev, data); +} + +/** + * umc_get_drvdata - recover UMC device's driver data. + * @umc_dev: Pointer to UMC device. + */ +static inline void *umc_get_drvdata(struct umc_dev *umc_dev) +{ + return dev_get_drvdata(&umc_dev->dev); +} + +int umc_controller_reset(struct umc_dev *umc); + +#endif /* #ifndef _LINUX_UWB_UMC_H_ */ diff --git a/include/linux/uwb/whci.h b/include/linux/uwb/whci.h new file mode 100644 index 000000000000..915ec23042d4 --- /dev/null +++ b/include/linux/uwb/whci.h @@ -0,0 +1,117 @@ +/* + * Wireless Host Controller Interface for Ultra-Wide-Band and Wireless USB + * + * Copyright (C) 2005-2006 Intel Corporation + * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> + * + * 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 Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * + * References: + * [WHCI] Wireless Host Controller Interface Specification for + * Certified Wireless Universal Serial Bus, revision 0.95. + */ +#ifndef _LINUX_UWB_WHCI_H_ +#define _LINUX_UWB_WHCI_H_ + +#include <linux/pci.h> + +/* + * UWB interface capability registers (offsets from UWBBASE) + * + * [WHCI] section 2.2 + */ +#define UWBCAPINFO 0x00 /* == UWBCAPDATA(0) */ +# define UWBCAPINFO_TO_N_CAPS(c) (((c) >> 0) & 0xFull) +#define UWBCAPDATA(n) (8*(n)) +# define UWBCAPDATA_TO_VERSION(c) (((c) >> 32) & 0xFFFFull) +# define UWBCAPDATA_TO_OFFSET(c) (((c) >> 18) & 0x3FFFull) +# define UWBCAPDATA_TO_BAR(c) (((c) >> 16) & 0x3ull) +# define UWBCAPDATA_TO_SIZE(c) ((((c) >> 8) & 0xFFull) * sizeof(u32)) +# define UWBCAPDATA_TO_CAP_ID(c) (((c) >> 0) & 0xFFull) + +/* Size of the WHCI capability data (including the RC capability) for + a device with n capabilities. */ +#define UWBCAPDATA_SIZE(n) (8 + 8*(n)) + + +/* + * URC registers (offsets from URCBASE) + * + * [WHCI] section 2.3 + */ +#define URCCMD 0x00 +# define URCCMD_RESET (1 << 31) /* UMC Hardware reset */ +# define URCCMD_RS (1 << 30) /* Run/Stop */ +# define URCCMD_EARV (1 << 29) /* Event Address Register Valid */ +# define URCCMD_ACTIVE (1 << 15) /* Command is active */ +# define URCCMD_IWR (1 << 14) /* Interrupt When Ready */ +# define URCCMD_SIZE_MASK 0x00000fff /* Command size mask */ +#define URCSTS 0x04 +# define URCSTS_EPS (1 << 17) /* Event Processing Status */ +# define URCSTS_HALTED (1 << 16) /* RC halted */ +# define URCSTS_HSE (1 << 10) /* Host System Error...fried */ +# define URCSTS_ER (1 << 9) /* Event Ready */ +# define URCSTS_RCI (1 << 8) /* Ready for Command Interrupt */ +# define URCSTS_INT_MASK 0x00000700 /* URC interrupt sources */ +# define URCSTS_ISI 0x000000ff /* Interrupt Source Identification */ +#define URCINTR 0x08 +# define URCINTR_EN_ALL 0x000007ff /* Enable all interrupt sources */ +#define URCCMDADDR 0x10 +#define URCEVTADDR 0x18 +# define URCEVTADDR_OFFSET_MASK 0xfff /* Event pointer offset mask */ + + +/** Write 32 bit @value to little endian register at @addr */ +static inline +void le_writel(u32 value, void __iomem *addr) +{ + iowrite32(value, addr); +} + + +/** Read from 32 bit little endian register at @addr */ +static inline +u32 le_readl(void __iomem *addr) +{ + return ioread32(addr); +} + + +/** Write 64 bit @value to little endian register at @addr */ +static inline +void le_writeq(u64 value, void __iomem *addr) +{ + iowrite32(value, addr); + iowrite32(value >> 32, addr + 4); +} + + +/** Read from 64 bit little endian register at @addr */ +static inline +u64 le_readq(void __iomem *addr) +{ + u64 value; + value = ioread32(addr); + value |= (u64)ioread32(addr + 4) << 32; + return value; +} + +extern int whci_wait_for(struct device *dev, u32 __iomem *reg, + u32 mask, u32 result, + unsigned long max_ms, const char *tag); + +#endif /* #ifndef _LINUX_UWB_WHCI_H_ */ diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index d4b03034ee73..4669d7e72e75 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -315,6 +315,13 @@ struct v4l2_pix_format { /* see http://www.siliconimaging.com/RGB%20Bayer.htm */ #define V4L2_PIX_FMT_SBGGR8 v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG.. GRGR.. */ #define V4L2_PIX_FMT_SGBRG8 v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */ +/* + * 10bit raw bayer, expanded to 16 bits + * xxxxrrrrrrrrrrxxxxgggggggggg xxxxggggggggggxxxxbbbbbbbbbb... + */ +#define V4L2_PIX_FMT_SGRBG10 v4l2_fourcc('B', 'A', '1', '0') +/* 10bit raw bayer DPCM compressed to 8 bits */ +#define V4L2_PIX_FMT_SGRBG10DPCM8 v4l2_fourcc('B', 'D', '1', '0') #define V4L2_PIX_FMT_SBGGR16 v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */ /* compressed formats */ diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h index 328eb4022727..307b88577eaa 100644 --- a/include/linux/vmalloc.h +++ b/include/linux/vmalloc.h @@ -2,6 +2,7 @@ #define _LINUX_VMALLOC_H #include <linux/spinlock.h> +#include <linux/init.h> #include <asm/page.h> /* pgprot_t */ struct vm_area_struct; /* vma defining user mapping in mm_types.h */ @@ -23,7 +24,6 @@ struct vm_area_struct; /* vma defining user mapping in mm_types.h */ #endif struct vm_struct { - /* keep next,addr,size together to speedup lookups */ struct vm_struct *next; void *addr; unsigned long size; @@ -37,6 +37,19 @@ struct vm_struct { /* * Highlevel APIs for driver use */ +extern void vm_unmap_ram(const void *mem, unsigned int count); +extern void *vm_map_ram(struct page **pages, unsigned int count, + int node, pgprot_t prot); +extern void vm_unmap_aliases(void); + +#ifdef CONFIG_MMU +extern void __init vmalloc_init(void); +#else +static inline void vmalloc_init(void) +{ +} +#endif + extern void *vmalloc(unsigned long size); extern void *vmalloc_user(unsigned long size); extern void *vmalloc_node(unsigned long size, int node); @@ -90,6 +103,4 @@ extern void free_vm_area(struct vm_struct *area); extern rwlock_t vmlist_lock; extern struct vm_struct *vmlist; -extern const struct seq_operations vmalloc_op; - #endif /* _LINUX_VMALLOC_H */ diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index 58334d439516..524cd1b28ecb 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -41,13 +41,19 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, #ifdef CONFIG_HUGETLB_PAGE HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_FAIL, #endif +#ifdef CONFIG_UNEVICTABLE_LRU + UNEVICTABLE_PGCULLED, /* culled to noreclaim list */ + UNEVICTABLE_PGSCANNED, /* scanned for reclaimability */ + UNEVICTABLE_PGRESCUED, /* rescued from noreclaim list */ + UNEVICTABLE_PGMLOCKED, + UNEVICTABLE_PGMUNLOCKED, + UNEVICTABLE_PGCLEARED, /* on COW, page truncate */ + UNEVICTABLE_PGSTRANDED, /* unable to isolate on unlock */ + UNEVICTABLE_MLOCKFREED, +#endif NR_VM_EVENT_ITEMS }; -extern const struct seq_operations fragmentation_op; -extern const struct seq_operations pagetypeinfo_op; -extern const struct seq_operations zoneinfo_op; -extern const struct seq_operations vmstat_op; extern int sysctl_stat_interval; #ifdef CONFIG_VM_EVENT_COUNTERS @@ -159,6 +165,16 @@ static inline unsigned long zone_page_state(struct zone *zone, return x; } +extern unsigned long global_lru_pages(void); + +static inline unsigned long zone_lru_pages(struct zone *zone) +{ + return (zone_page_state(zone, NR_ACTIVE_ANON) + + zone_page_state(zone, NR_ACTIVE_FILE) + + zone_page_state(zone, NR_INACTIVE_ANON) + + zone_page_state(zone, NR_INACTIVE_FILE)); +} + #ifdef CONFIG_NUMA /* * Determine the per node value of a stat item. This function diff --git a/include/linux/wlp.h b/include/linux/wlp.h new file mode 100644 index 000000000000..033545e145c7 --- /dev/null +++ b/include/linux/wlp.h @@ -0,0 +1,735 @@ +/* + * WiMedia Logical Link Control Protocol (WLP) + * + * Copyright (C) 2005-2006 Intel Corporation + * Reinette Chatre <reinette.chatre@intel.com> + * + * 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 Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * + * FIXME: docs + * + * - Does not (yet) include support for WLP control frames + * WLP Draft 0.99 [6.5]. + * + * A visual representation of the data structures. + * + * wssidB wssidB + * ^ ^ + * | | + * wssidA wssidA + * wlp interface { ^ ^ + * ... | | + * ... ... wssid wssid ... + * wlp --- ... | | + * }; neighbors --> neighbA --> neighbB + * ... + * wss + * ... + * eda cache --> neighborA --> neighborB --> neighborC ... + */ + +#ifndef __LINUX__WLP_H_ +#define __LINUX__WLP_H_ + +#include <linux/netdevice.h> +#include <linux/skbuff.h> +#include <linux/list.h> +#include <linux/uwb.h> + +/** + * WLP Protocol ID + * WLP Draft 0.99 [6.2] + * + * The MUX header for all WLP frames + */ +#define WLP_PROTOCOL_ID 0x0100 + +/** + * WLP Version + * WLP version placed in the association frames (WLP 0.99 [6.6]) + */ +#define WLP_VERSION 0x10 + +/** + * Bytes needed to print UUID as string + */ +#define WLP_WSS_UUID_STRSIZE 48 + +/** + * Bytes needed to print nonce as string + */ +#define WLP_WSS_NONCE_STRSIZE 48 + + +/** + * Size used for WLP name size + * + * The WSS name is set to 65 bytes, 1 byte larger than the maximum + * allowed by the WLP spec. This is to have a null terminated string + * for display to the user. A maximum of 64 bytes will still be used + * when placing the WSS name field in association frames. + */ +#define WLP_WSS_NAME_SIZE 65 + +/** + * Number of bytes added by WLP to data frame + * + * A data frame transmitted from a host will be placed in a Standard or + * Abbreviated WLP frame. These have an extra 4 bytes of header (struct + * wlp_frame_std_abbrv_hdr). + * When the stack sends this data frame for transmission it needs to ensure + * there is enough headroom for this header. + */ +#define WLP_DATA_HLEN 4 + +/** + * State of device regarding WLP Service Set + * + * WLP_WSS_STATE_NONE: the host does not participate in any WSS + * WLP_WSS_STATE_PART_ENROLLED: used as part of the enrollment sequence + * ("Partial Enroll"). This state is used to + * indicate the first part of enrollment that is + * unsecure. If the WSS is unsecure then the + * state will promptly go to WLP_WSS_STATE_ENROLLED, + * if the WSS is not secure then the enrollment + * procedure is a few more steps before we are + * enrolled. + * WLP_WSS_STATE_ENROLLED: the host is enrolled in a WSS + * WLP_WSS_STATE_ACTIVE: WSS is activated + * WLP_WSS_STATE_CONNECTED: host is connected to neighbor in WSS + * + */ +enum wlp_wss_state { + WLP_WSS_STATE_NONE = 0, + WLP_WSS_STATE_PART_ENROLLED, + WLP_WSS_STATE_ENROLLED, + WLP_WSS_STATE_ACTIVE, + WLP_WSS_STATE_CONNECTED, +}; + +/** + * WSS Secure status + * WLP 0.99 Table 6 + * + * Set to one if the WSS is secure, zero if it is not secure + */ +enum wlp_wss_sec_status { + WLP_WSS_UNSECURE = 0, + WLP_WSS_SECURE, +}; + +/** + * WLP frame type + * WLP Draft 0.99 [6.2 Table 1] + */ +enum wlp_frame_type { + WLP_FRAME_STANDARD = 0, + WLP_FRAME_ABBREVIATED, + WLP_FRAME_CONTROL, + WLP_FRAME_ASSOCIATION, +}; + +/** + * WLP Association Message Type + * WLP Draft 0.99 [6.6.1.2 Table 8] + */ +enum wlp_assoc_type { + WLP_ASSOC_D1 = 2, + WLP_ASSOC_D2 = 3, + WLP_ASSOC_M1 = 4, + WLP_ASSOC_M2 = 5, + WLP_ASSOC_M3 = 7, + WLP_ASSOC_M4 = 8, + WLP_ASSOC_M5 = 9, + WLP_ASSOC_M6 = 10, + WLP_ASSOC_M7 = 11, + WLP_ASSOC_M8 = 12, + WLP_ASSOC_F0 = 14, + WLP_ASSOC_E1 = 32, + WLP_ASSOC_E2 = 33, + WLP_ASSOC_C1 = 34, + WLP_ASSOC_C2 = 35, + WLP_ASSOC_C3 = 36, + WLP_ASSOC_C4 = 37, +}; + +/** + * WLP Attribute Type + * WLP Draft 0.99 [6.6.1 Table 6] + */ +enum wlp_attr_type { + WLP_ATTR_AUTH = 0x1005, /* Authenticator */ + WLP_ATTR_DEV_NAME = 0x1011, /* Device Name */ + WLP_ATTR_DEV_PWD_ID = 0x1012, /* Device Password ID */ + WLP_ATTR_E_HASH1 = 0x1014, /* E-Hash1 */ + WLP_ATTR_E_HASH2 = 0x1015, /* E-Hash2 */ + WLP_ATTR_E_SNONCE1 = 0x1016, /* E-SNonce1 */ + WLP_ATTR_E_SNONCE2 = 0x1017, /* E-SNonce2 */ + WLP_ATTR_ENCR_SET = 0x1018, /* Encrypted Settings */ + WLP_ATTR_ENRL_NONCE = 0x101A, /* Enrollee Nonce */ + WLP_ATTR_KEYWRAP_AUTH = 0x101E, /* Key Wrap Authenticator */ + WLP_ATTR_MANUF = 0x1021, /* Manufacturer */ + WLP_ATTR_MSG_TYPE = 0x1022, /* Message Type */ + WLP_ATTR_MODEL_NAME = 0x1023, /* Model Name */ + WLP_ATTR_MODEL_NR = 0x1024, /* Model Number */ + WLP_ATTR_PUB_KEY = 0x1032, /* Public Key */ + WLP_ATTR_REG_NONCE = 0x1039, /* Registrar Nonce */ + WLP_ATTR_R_HASH1 = 0x103D, /* R-Hash1 */ + WLP_ATTR_R_HASH2 = 0x103E, /* R-Hash2 */ + WLP_ATTR_R_SNONCE1 = 0x103F, /* R-SNonce1 */ + WLP_ATTR_R_SNONCE2 = 0x1040, /* R-SNonce2 */ + WLP_ATTR_SERIAL = 0x1042, /* Serial number */ + WLP_ATTR_UUID_E = 0x1047, /* UUID-E */ + WLP_ATTR_UUID_R = 0x1048, /* UUID-R */ + WLP_ATTR_PRI_DEV_TYPE = 0x1054, /* Primary Device Type */ + WLP_ATTR_SEC_DEV_TYPE = 0x1055, /* Secondary Device Type */ + WLP_ATTR_PORT_DEV = 0x1056, /* Portable Device */ + WLP_ATTR_APP_EXT = 0x1058, /* Application Extension */ + WLP_ATTR_WLP_VER = 0x2000, /* WLP Version */ + WLP_ATTR_WSSID = 0x2001, /* WSSID */ + WLP_ATTR_WSS_NAME = 0x2002, /* WSS Name */ + WLP_ATTR_WSS_SEC_STAT = 0x2003, /* WSS Secure Status */ + WLP_ATTR_WSS_BCAST = 0x2004, /* WSS Broadcast Address */ + WLP_ATTR_WSS_M_KEY = 0x2005, /* WSS Master Key */ + WLP_ATTR_ACC_ENRL = 0x2006, /* Accepting Enrollment */ + WLP_ATTR_WSS_INFO = 0x2007, /* WSS Information */ + WLP_ATTR_WSS_SEL_MTHD = 0x2008, /* WSS Selection Method */ + WLP_ATTR_ASSC_MTHD_LIST = 0x2009, /* Association Methods List */ + WLP_ATTR_SEL_ASSC_MTHD = 0x200A, /* Selected Association Method */ + WLP_ATTR_ENRL_HASH_COMM = 0x200B, /* Enrollee Hash Commitment */ + WLP_ATTR_WSS_TAG = 0x200C, /* WSS Tag */ + WLP_ATTR_WSS_VIRT = 0x200D, /* WSS Virtual EUI-48 */ + WLP_ATTR_WLP_ASSC_ERR = 0x200E, /* WLP Association Error */ + WLP_ATTR_VNDR_EXT = 0x200F, /* Vendor Extension */ +}; + +/** + * WLP Category ID of primary/secondary device + * WLP Draft 0.99 [6.6.1.8 Table 12] + */ +enum wlp_dev_category_id { + WLP_DEV_CAT_COMPUTER = 1, + WLP_DEV_CAT_INPUT, + WLP_DEV_CAT_PRINT_SCAN_FAX_COPIER, + WLP_DEV_CAT_CAMERA, + WLP_DEV_CAT_STORAGE, + WLP_DEV_CAT_INFRASTRUCTURE, + WLP_DEV_CAT_DISPLAY, + WLP_DEV_CAT_MULTIM, + WLP_DEV_CAT_GAMING, + WLP_DEV_CAT_TELEPHONE, + WLP_DEV_CAT_OTHER = 65535, +}; + +/** + * WLP WSS selection method + * WLP Draft 0.99 [6.6.1.6 Table 10] + */ +enum wlp_wss_sel_mthd { + WLP_WSS_ENRL_SELECT = 1, /* Enrollee selects */ + WLP_WSS_REG_SELECT, /* Registrar selects */ +}; + +/** + * WLP association error values + * WLP Draft 0.99 [6.6.1.5 Table 9] + */ +enum wlp_assc_error { + WLP_ASSOC_ERROR_NONE, + WLP_ASSOC_ERROR_AUTH, /* Authenticator Failure */ + WLP_ASSOC_ERROR_ROGUE, /* Rogue activity suspected */ + WLP_ASSOC_ERROR_BUSY, /* Device busy */ + WLP_ASSOC_ERROR_LOCK, /* Setup Locked */ + WLP_ASSOC_ERROR_NOT_READY, /* Registrar not ready */ + WLP_ASSOC_ERROR_INV, /* Invalid WSS selection */ + WLP_ASSOC_ERROR_MSG_TIME, /* Message timeout */ + WLP_ASSOC_ERROR_ENR_TIME, /* Enrollment session timeout */ + WLP_ASSOC_ERROR_PW, /* Device password invalid */ + WLP_ASSOC_ERROR_VER, /* Unsupported version */ + WLP_ASSOC_ERROR_INT, /* Internal error */ + WLP_ASSOC_ERROR_UNDEF, /* Undefined error */ + WLP_ASSOC_ERROR_NUM, /* Numeric comparison failure */ + WLP_ASSOC_ERROR_WAIT, /* Waiting for user input */ +}; + +/** + * WLP Parameters + * WLP 0.99 [7.7] + */ +enum wlp_parameters { + WLP_PER_MSG_TIMEOUT = 15, /* Seconds to wait for response to + association message. */ +}; + +/** + * WLP IE + * + * The WLP IE should be included in beacons by all devices. + * + * The driver can set only a few of the fields in this information element, + * most fields are managed by the device self. When the driver needs to set + * a field it will only provide values for the fields of interest, the rest + * will be filled with zeroes. The fields of interest are: + * + * Element ID + * Length + * Capabilities (only to include WSSID Hash list length) + * WSSID Hash List fields + * + * WLP 0.99 [6.7] + * + * Only the fields that will be used are detailed in this structure, rest + * are not detailed or marked as "notused". + */ +struct wlp_ie { + struct uwb_ie_hdr hdr; + __le16 capabilities; + __le16 cycle_param; + __le16 acw_anchor_addr; + u8 wssid_hash_list[]; +} __attribute__((packed)); + +static inline int wlp_ie_hash_length(struct wlp_ie *ie) +{ + return (le16_to_cpu(ie->capabilities) >> 12) & 0xf; +} + +static inline void wlp_ie_set_hash_length(struct wlp_ie *ie, int hash_length) +{ + u16 caps = le16_to_cpu(ie->capabilities); + caps = (caps & ~(0xf << 12)) | (hash_length << 12); + ie->capabilities = cpu_to_le16(caps); +} + +/** + * WLP nonce + * WLP Draft 0.99 [6.6.1 Table 6] + * + * A 128-bit random number often used (E-SNonce1, E-SNonce2, Enrollee + * Nonce, Registrar Nonce, R-SNonce1, R-SNonce2). It is passed to HW so + * it is packed. + */ +struct wlp_nonce { + u8 data[16]; +} __attribute__((packed)); + +/** + * WLP UUID + * WLP Draft 0.99 [6.6.1 Table 6] + * + * Universally Unique Identifier (UUID) encoded as an octet string in the + * order the octets are shown in string representation in RFC4122. A UUID + * is often used (UUID-E, UUID-R, WSSID). It is passed to HW so it is packed. + */ +struct wlp_uuid { + u8 data[16]; +} __attribute__((packed)); + + +/** + * Primary and secondary device type attributes + * WLP Draft 0.99 [6.6.1.8] + */ +struct wlp_dev_type { + enum wlp_dev_category_id category:16; + u8 OUI[3]; + u8 OUIsubdiv; + __le16 subID; +} __attribute__((packed)); + +/** + * WLP frame header + * WLP Draft 0.99 [6.2] + */ +struct wlp_frame_hdr { + __le16 mux_hdr; /* WLP_PROTOCOL_ID */ + enum wlp_frame_type type:8; +} __attribute__((packed)); + +/** + * WLP attribute field header + * WLP Draft 0.99 [6.6.1] + * + * Header of each attribute found in an association frame + */ +struct wlp_attr_hdr { + __le16 type; + __le16 length; +} __attribute__((packed)); + +/** + * Device information commonly used together + * + * Each of these device information elements has a specified range in which it + * should fit (WLP 0.99 [Table 6]). This range provided in the spec does not + * include the termination null '\0' character (when used in the + * association protocol the attribute fields are accompanied + * with a "length" field so the full range from the spec can be used for + * the value). We thus allocate an extra byte to be able to store a string + * of max length with a terminating '\0'. + */ +struct wlp_device_info { + char name[33]; + char model_name[33]; + char manufacturer[65]; + char model_nr[33]; + char serial[33]; + struct wlp_dev_type prim_dev_type; +}; + +/** + * Macros for the WLP attributes + * + * There are quite a few attributes (total is 43). The attribute layout can be + * in one of three categories: one value, an array, an enum forced to 8 bits. + * These macros help with their definitions. + */ +#define wlp_attr(type, name) \ +struct wlp_attr_##name { \ + struct wlp_attr_hdr hdr; \ + type name; \ +} __attribute__((packed)); + +#define wlp_attr_array(type, name) \ +struct wlp_attr_##name { \ + struct wlp_attr_hdr hdr; \ + type name[]; \ +} __attribute__((packed)); + +/** + * WLP association attribute fields + * WLP Draft 0.99 [6.6.1 Table 6] + * + * Attributes appear in same order as the Table in the spec + * FIXME Does not define all attributes yet + */ + +/* Device name: Friendly name of sending device */ +wlp_attr_array(u8, dev_name) + +/* Enrollee Nonce: Random number generated by enrollee for an enrollment + * session */ +wlp_attr(struct wlp_nonce, enonce) + +/* Manufacturer name: Name of manufacturer of the sending device */ +wlp_attr_array(u8, manufacturer) + +/* WLP Message Type */ +wlp_attr(u8, msg_type) + +/* WLP Model name: Model name of sending device */ +wlp_attr_array(u8, model_name) + +/* WLP Model number: Model number of sending device */ +wlp_attr_array(u8, model_nr) + +/* Registrar Nonce: Random number generated by registrar for an enrollment + * session */ +wlp_attr(struct wlp_nonce, rnonce) + +/* Serial number of device */ +wlp_attr_array(u8, serial) + +/* UUID of enrollee */ +wlp_attr(struct wlp_uuid, uuid_e) + +/* UUID of registrar */ +wlp_attr(struct wlp_uuid, uuid_r) + +/* WLP Primary device type */ +wlp_attr(struct wlp_dev_type, prim_dev_type) + +/* WLP Secondary device type */ +wlp_attr(struct wlp_dev_type, sec_dev_type) + +/* WLP protocol version */ +wlp_attr(u8, version) + +/* WLP service set identifier */ +wlp_attr(struct wlp_uuid, wssid) + +/* WLP WSS name */ +wlp_attr_array(u8, wss_name) + +/* WLP WSS Secure Status */ +wlp_attr(u8, wss_sec_status) + +/* WSS Broadcast Address */ +wlp_attr(struct uwb_mac_addr, wss_bcast) + +/* WLP Accepting Enrollment */ +wlp_attr(u8, accept_enrl) + +/** + * WSS information attributes + * WLP Draft 0.99 [6.6.3 Table 15] + */ +struct wlp_wss_info { + struct wlp_attr_wssid wssid; + struct wlp_attr_wss_name name; + struct wlp_attr_accept_enrl accept; + struct wlp_attr_wss_sec_status sec_stat; + struct wlp_attr_wss_bcast bcast; +} __attribute__((packed)); + +/* WLP WSS Information */ +wlp_attr_array(struct wlp_wss_info, wss_info) + +/* WLP WSS Selection method */ +wlp_attr(u8, wss_sel_mthd) + +/* WLP WSS tag */ +wlp_attr(u8, wss_tag) + +/* WSS Virtual Address */ +wlp_attr(struct uwb_mac_addr, wss_virt) + +/* WLP association error */ +wlp_attr(u8, wlp_assc_err) + +/** + * WLP standard and abbreviated frames + * + * WLP Draft 0.99 [6.3] and [6.4] + * + * The difference between the WLP standard frame and the WLP + * abbreviated frame is that the standard frame includes the src + * and dest addresses from the Ethernet header, the abbreviated frame does + * not. + * The src/dest (as well as the type/length and client data) are already + * defined as part of the Ethernet header, we do not do this here. + * From this perspective the standard and abbreviated frames appear the + * same - they will be treated differently though. + * + * The size of this header is also captured in WLP_DATA_HLEN to enable + * interfaces to prepare their headroom. + */ +struct wlp_frame_std_abbrv_hdr { + struct wlp_frame_hdr hdr; + u8 tag; +} __attribute__((packed)); + +/** + * WLP association frames + * + * WLP Draft 0.99 [6.6] + */ +struct wlp_frame_assoc { + struct wlp_frame_hdr hdr; + enum wlp_assoc_type type:8; + struct wlp_attr_version version; + struct wlp_attr_msg_type msg_type; + u8 attr[]; +} __attribute__((packed)); + +/* Ethernet to dev address mapping */ +struct wlp_eda { + spinlock_t lock; + struct list_head cache; /* Eth<->Dev Addr cache */ +}; + +/** + * WSS information temporary storage + * + * This information is only stored temporarily during discovery. It should + * not be stored unless the device is enrolled in the advertised WSS. This + * is done mainly because we follow the letter of the spec in this regard. + * See WLP 0.99 [7.2.3]. + * When the device does become enrolled in a WSS the WSS information will + * be stored as part of the more comprehensive struct wlp_wss. + */ +struct wlp_wss_tmp_info { + char name[WLP_WSS_NAME_SIZE]; + u8 accept_enroll; + u8 sec_status; + struct uwb_mac_addr bcast; +}; + +struct wlp_wssid_e { + struct list_head node; + struct wlp_uuid wssid; + struct wlp_wss_tmp_info *info; +}; + +/** + * A cache entry of WLP neighborhood + * + * @node: head of list is wlp->neighbors + * @wssid: list of wssids of this neighbor, element is wlp_wssid_e + * @info: temporary storage for information learned during discovery. This + * storage is used together with the wssid_e temporary storage + * during discovery. + */ +struct wlp_neighbor_e { + struct list_head node; + struct wlp_uuid uuid; + struct uwb_dev *uwb_dev; + struct list_head wssid; /* Elements are wlp_wssid_e */ + struct wlp_device_info *info; +}; + +struct wlp; +/** + * Information for an association session in progress. + * + * @exp_message: The type of the expected message. Both this message and a + * F0 message (which can be sent in response to any + * association frame) will be accepted as a valid message for + * this session. + * @cb: The function that will be called upon receipt of this + * message. + * @cb_priv: Private data of callback + * @data: Data used in association process (always a sk_buff?) + * @neighbor: Address of neighbor with which association session is in + * progress. + */ +struct wlp_session { + enum wlp_assoc_type exp_message; + void (*cb)(struct wlp *); + void *cb_priv; + void *data; + struct uwb_dev_addr neighbor_addr; +}; + +/** + * WLP Service Set + * + * @mutex: used to protect entire WSS structure. + * + * @name: The WSS name is set to 65 bytes, 1 byte larger than the maximum + * allowed by the WLP spec. This is to have a null terminated string + * for display to the user. A maximum of 64 bytes will still be used + * when placing the WSS name field in association frames. + * + * @accept_enroll: Accepting enrollment: Set to one if registrar is + * accepting enrollment in WSS, or zero otherwise. + * + * Global and local information for each WSS in which we are enrolled. + * WLP 0.99 Section 7.2.1 and Section 7.2.2 + */ +struct wlp_wss { + struct mutex mutex; + struct kobject kobj; + /* Global properties. */ + struct wlp_uuid wssid; + u8 hash; + char name[WLP_WSS_NAME_SIZE]; + struct uwb_mac_addr bcast; + u8 secure_status:1; + u8 master_key[16]; + /* Local properties. */ + u8 tag; + struct uwb_mac_addr virtual_addr; + /* Extra */ + u8 accept_enroll:1; + enum wlp_wss_state state; +}; + +/** + * WLP main structure + * @mutex: protect changes to WLP structure. We only allow changes to the + * uuid, so currently this mutex only protects this field. + */ +struct wlp { + struct mutex mutex; + struct uwb_rc *rc; /* UWB radio controller */ + struct uwb_pal pal; + struct wlp_eda eda; + struct wlp_uuid uuid; + struct wlp_session *session; + struct wlp_wss wss; + struct mutex nbmutex; /* Neighbor mutex protects neighbors list */ + struct list_head neighbors; /* Elements are wlp_neighbor_e */ + struct uwb_notifs_handler uwb_notifs_handler; + struct wlp_device_info *dev_info; + void (*fill_device_info)(struct wlp *wlp, struct wlp_device_info *info); + int (*xmit_frame)(struct wlp *, struct sk_buff *, + struct uwb_dev_addr *); + void (*stop_queue)(struct wlp *); + void (*start_queue)(struct wlp *); +}; + +/* sysfs */ + + +struct wlp_wss_attribute { + struct attribute attr; + ssize_t (*show)(struct wlp_wss *wss, char *buf); + ssize_t (*store)(struct wlp_wss *wss, const char *buf, size_t count); +}; + +#define WSS_ATTR(_name, _mode, _show, _store) \ +static struct wlp_wss_attribute wss_attr_##_name = __ATTR(_name, _mode, \ + _show, _store) + +extern int wlp_setup(struct wlp *, struct uwb_rc *); +extern void wlp_remove(struct wlp *); +extern ssize_t wlp_neighborhood_show(struct wlp *, char *); +extern int wlp_wss_setup(struct net_device *, struct wlp_wss *); +extern void wlp_wss_remove(struct wlp_wss *); +extern ssize_t wlp_wss_activate_show(struct wlp_wss *, char *); +extern ssize_t wlp_wss_activate_store(struct wlp_wss *, const char *, size_t); +extern ssize_t wlp_eda_show(struct wlp *, char *); +extern ssize_t wlp_eda_store(struct wlp *, const char *, size_t); +extern ssize_t wlp_uuid_show(struct wlp *, char *); +extern ssize_t wlp_uuid_store(struct wlp *, const char *, size_t); +extern ssize_t wlp_dev_name_show(struct wlp *, char *); +extern ssize_t wlp_dev_name_store(struct wlp *, const char *, size_t); +extern ssize_t wlp_dev_manufacturer_show(struct wlp *, char *); +extern ssize_t wlp_dev_manufacturer_store(struct wlp *, const char *, size_t); +extern ssize_t wlp_dev_model_name_show(struct wlp *, char *); +extern ssize_t wlp_dev_model_name_store(struct wlp *, const char *, size_t); +extern ssize_t wlp_dev_model_nr_show(struct wlp *, char *); +extern ssize_t wlp_dev_model_nr_store(struct wlp *, const char *, size_t); +extern ssize_t wlp_dev_serial_show(struct wlp *, char *); +extern ssize_t wlp_dev_serial_store(struct wlp *, const char *, size_t); +extern ssize_t wlp_dev_prim_category_show(struct wlp *, char *); +extern ssize_t wlp_dev_prim_category_store(struct wlp *, const char *, + size_t); +extern ssize_t wlp_dev_prim_OUI_show(struct wlp *, char *); +extern ssize_t wlp_dev_prim_OUI_store(struct wlp *, const char *, size_t); +extern ssize_t wlp_dev_prim_OUI_sub_show(struct wlp *, char *); +extern ssize_t wlp_dev_prim_OUI_sub_store(struct wlp *, const char *, + size_t); +extern ssize_t wlp_dev_prim_subcat_show(struct wlp *, char *); +extern ssize_t wlp_dev_prim_subcat_store(struct wlp *, const char *, + size_t); +extern int wlp_receive_frame(struct device *, struct wlp *, struct sk_buff *, + struct uwb_dev_addr *); +extern int wlp_prepare_tx_frame(struct device *, struct wlp *, + struct sk_buff *, struct uwb_dev_addr *); +void wlp_reset_all(struct wlp *wlp); + +/** + * Initialize WSS + */ +static inline +void wlp_wss_init(struct wlp_wss *wss) +{ + mutex_init(&wss->mutex); +} + +static inline +void wlp_init(struct wlp *wlp) +{ + INIT_LIST_HEAD(&wlp->neighbors); + mutex_init(&wlp->mutex); + mutex_init(&wlp->nbmutex); + wlp_wss_init(&wlp->wss); +} + + +#endif /* #ifndef __LINUX__WLP_H_ */ diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h index 5c158c477ac7..89a5a1231ffb 100644 --- a/include/linux/workqueue.h +++ b/include/linux/workqueue.h @@ -149,11 +149,11 @@ struct execute_work { extern struct workqueue_struct * __create_workqueue_key(const char *name, int singlethread, - int freezeable, struct lock_class_key *key, + int freezeable, int rt, struct lock_class_key *key, const char *lock_name); #ifdef CONFIG_LOCKDEP -#define __create_workqueue(name, singlethread, freezeable) \ +#define __create_workqueue(name, singlethread, freezeable, rt) \ ({ \ static struct lock_class_key __key; \ const char *__lock_name; \ @@ -164,17 +164,19 @@ __create_workqueue_key(const char *name, int singlethread, __lock_name = #name; \ \ __create_workqueue_key((name), (singlethread), \ - (freezeable), &__key, \ + (freezeable), (rt), &__key, \ __lock_name); \ }) #else -#define __create_workqueue(name, singlethread, freezeable) \ - __create_workqueue_key((name), (singlethread), (freezeable), NULL, NULL) +#define __create_workqueue(name, singlethread, freezeable, rt) \ + __create_workqueue_key((name), (singlethread), (freezeable), (rt), \ + NULL, NULL) #endif -#define create_workqueue(name) __create_workqueue((name), 0, 0) -#define create_freezeable_workqueue(name) __create_workqueue((name), 1, 1) -#define create_singlethread_workqueue(name) __create_workqueue((name), 1, 0) +#define create_workqueue(name) __create_workqueue((name), 0, 0, 0) +#define create_rt_workqueue(name) __create_workqueue((name), 0, 0, 1) +#define create_freezeable_workqueue(name) __create_workqueue((name), 1, 1, 0) +#define create_singlethread_workqueue(name) __create_workqueue((name), 1, 0, 0) extern void destroy_workqueue(struct workqueue_struct *wq); diff --git a/include/linux/writeback.h b/include/linux/writeback.h index 12b15c561a1f..e585657e9831 100644 --- a/include/linux/writeback.h +++ b/include/linux/writeback.h @@ -63,7 +63,15 @@ struct writeback_control { unsigned for_writepages:1; /* This is a writepages() call */ unsigned range_cyclic:1; /* range_start is cyclic */ unsigned more_io:1; /* more io to be dispatched */ - unsigned range_cont:1; + /* + * write_cache_pages() won't update wbc->nr_to_write and + * mapping->writeback_index if no_nrwrite_index_update + * is set. write_cache_pages() may write more than we + * requested and we want to make sure nr_to_write and + * writeback_index are updated in a consistent manner + * so we use a single control to update them + */ + unsigned no_nrwrite_index_update:1; }; /* |