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* xtensa: xtfpga: set ethoc clock frequencyMax Filippov2014-02-211-0/+1
| | | | | | | Connect xtfpga board ethernet MAC to the clock in the DTS. Set up MAC base frequency in the platform data in case of build w/o CONFIG_OF. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* xtensa: xtfpga: use common clock frameworkMax Filippov2014-02-211-3/+3
| | | | | | | With this change the board needs to set up single clock object, users of this clock will get correct frequency automatically. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-blockLinus Torvalds2014-01-301-7/+7
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull core block IO changes from Jens Axboe: "The major piece in here is the immutable bio_ve series from Kent, the rest is fairly minor. It was supposed to go in last round, but various issues pushed it to this release instead. The pull request contains: - Various smaller blk-mq fixes from different folks. Nothing major here, just minor fixes and cleanups. - Fix for a memory leak in the error path in the block ioctl code from Christian Engelmayer. - Header export fix from CaiZhiyong. - Finally the immutable biovec changes from Kent Overstreet. This enables some nice future work on making arbitrarily sized bios possible, and splitting more efficient. Related fixes to immutable bio_vecs: - dm-cache immutable fixup from Mike Snitzer. - btrfs immutable fixup from Muthu Kumar. - bio-integrity fix from Nic Bellinger, which is also going to stable" * 'for-3.14/core' of git://git.kernel.dk/linux-block: (44 commits) xtensa: fixup simdisk driver to work with immutable bio_vecs block/blk-mq-cpu.c: use hotcpu_notifier() blk-mq: for_each_* macro correctness block: Fix memory leak in rw_copy_check_uvector() handling bio-integrity: Fix bio_integrity_verify segment start bug block: remove unrelated header files and export symbol blk-mq: uses page->list incorrectly blk-mq: use __smp_call_function_single directly btrfs: fix missing increment of bi_remaining Revert "block: Warn and free bio if bi_end_io is not set" block: Warn and free bio if bi_end_io is not set blk-mq: fix initializing request's start time block: blk-mq: don't export blk_mq_free_queue() block: blk-mq: make blk_sync_queue support mq block: blk-mq: support draining mq queue dm cache: increment bi_remaining when bi_end_io is restored block: fixup for generic bio chaining block: Really silence spurious compiler warnings block: Silence spurious compiler warnings block: Kill bio_pair_split() ...
| * xtensa: fixup simdisk driver to work with immutable bio_vecsJens Axboe2014-01-291-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Geert reported: arch/xtensa/platforms/iss/simdisk.c:108:23: error: 'struct bio' has no member named 'bi_sector' arch/xtensa/platforms/iss/simdisk.c:110:2: error: incompatible types when assigning to type 'int' from type 'struct bvec_iter' arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_size' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_size' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_size' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_bvec_done' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_bvec_done' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bi_bvec_done' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:110:2: error: request for member 'bv_len' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_size' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_size' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_bvec_done' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_bvec_done' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_bvec_done' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_size' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_size' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_bvec_done' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_bvec_done' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_idx' in something not a structure or union arch/xtensa/platforms/iss/simdisk.c:111:18: error: request for member 'bi_bvec_done' in something not a structure or union make[2]: *** [arch/xtensa/platforms/iss/simdisk.o] Error 1 Fixup the usage of bio_for_each_segment(). Also fix wrong use of __bio_kunmap_atomic() - it needs the mapped buffer passed in, not the originally mapped page. Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* | xtensa: xtfpga: fix definitions of platform devicesMax Filippov2014-01-151-6/+6
| | | | | | | | | | | | | | | | Remove __initdata attribute, as the devices may be used after init sections are freed. Cc: stable@vger.kernel.org Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* | xtensa: standardize devicetree cpu compatible stringsBaruch Siach2014-01-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | The recommended compatible string format, according to the ePAPR v1.1 standard, is "manufacturer,model". Change the xtensa cpu compatible strings to "cdns,xtensa-cpu". Also, change the boards compatible strings in a similar way. The pic compatible string will be dealt with in a separate patch. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* | xtensa: ISS: raise network polling rate to 10 times/secMax Filippov2014-01-141-1/+1
| | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
* | xtensa: ISS: avoid simple_strtoul usageMax Filippov2014-01-141-11/+11
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa: add SMP supportMax Filippov2014-01-141-1/+1
| | | | | | | | | | | | | | | | | | This is largely based on SMP code from the xtensa-2.6.29-smp tree by Piet Delaney, Marc Gauthier, Joe Taylor, Christian Zankel (and possibly other Tensilica folks). Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa: remove NO_IRQ definitionsMax Filippov2014-01-141-4/+0
| | | | | | | | | | | | | | | | These definitions (-1) were correct when used as a hardware IRQ number, but are incorrect as a mapped IRQ number. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa: ISS: clean up diagnostic, increase verbosityMax Filippov2014-01-141-11/+12
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa: ISS: always use fixed tuntap configMax Filippov2014-01-141-14/+8
| | | | | | | | | | | | | | | | The code doesn't handle dynamic TAP interface allocation, so there's no point tracking this case. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa: ISS: enable iss_net_set_macMax Filippov2014-01-141-3/+2
| | | | | | | | | | | | | | This allows changing MAC address of the device. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa: ISS: drop IP setup, clean up MAC setupMax Filippov2014-01-141-46/+31
| | | | | | | | | | | | | | | | Without proper MAC setup network device doesn't work. IP setup is redundant and may be done with 'ip=...' kernel parameter. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa: ISS: init network interface name before the probeMax Filippov2014-01-141-7/+7
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa: ISS: fix command line parameter nameMax Filippov2014-01-141-1/+1
| | | | | | | | | | | | | | | | Now 'ethX=...' syntax can actually be used in kernel command line to specify network interfaces. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa: ISS: clean up iss-network driverMax Filippov2014-01-141-124/+52
|/ | | | | | | | No functional changes, remove dead/unused code, clean checkpatch warnings, replace strlen of constant strings with sizeof. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: Cocci spatch "noderef"Thomas Meyer2013-10-161-1/+2
| | | | | | | | | sizeof when applied to a pointer typed expression gives the size of the pointer. Found by coccinelle spatch "misc/noderef.cocci" Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: remove the second argument of __bio_kmap_atomic()Zhao Hongjiang2013-07-081-2/+2
| | | | | | | | kmap_atomic allows only one argument now, just remove the unused 'kmtype'. Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: cleanup ccount frequency trackingBaruch Siach2013-07-081-2/+1
| | | | | | | Remove unused nsec_per_ccount, and rename ccount_per_jiffy to ccount_preq. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: ISS: fix section mismatch in iss_net_setupMax Filippov2013-06-051-1/+1
| | | | | | | | iss_net_setup is only called from __setup, so it should be marked __init. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: xtfpga: fix section mismatchBaruch Siach2013-06-051-1/+1
| | | | | | | | | | platform_calibrate_ccount() calls update_clock_frequency() which is in .init section. However, platform_calibrate_ccount() itself is only called from .init (i.e., time_init()). Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* Merge tag 'xtensa-next-20130508' of git://github.com/czankel/xtensa-linuxLinus Torvalds2013-05-096-26/+26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull xtensa updates from Chris Zankel: "Support for the latest MMU architecture that allows for a larger accessible memory region, and various bug-fixes" * tag 'xtensa-next-20130508' of git://github.com/czankel/xtensa-linux: xtensa: Switch to asm-generic/linkage.h xtensa: fix redboot load address xtensa: ISS: fix timer_lock usage in rs_open xtensa: disable IRQs while IRQ handler is running xtensa: enable lockdep support xtensa: fix arch_irqs_disabled_flags implementation xtensa: add irq flags trace support xtensa: provide custom CALLER_ADDR* implementations xtensa: add stacktrace support xtensa: clean up stpill_registers xtensa: don't use a7 in simcalls xtensa: don't attempt to use unconfigured timers xtensa: provide default platform_pcibios_init implementation xtensa: remove KCORE_ELF again xtensa: document MMUv3 setup sequence xtensa: add MMU v3 support xtensa: fix ibreakenable register update xtensa: fix oprofile building as module
| * xtensa: ISS: fix timer_lock usage in rs_openMax Filippov2013-05-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the following lockdep splat: [ 66.460000] ================================= [ 66.460000] [ INFO: inconsistent lock state ] [ 66.460000] 3.9.0-rc5-00161-ga48dd49 #4 Not tainted [ 66.460000] --------------------------------- [ 66.460000] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 66.460000] swapper/1 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 66.460000] (timer_lock){+.?...}, at: [<d0006cde>] rs_poll+0x12/0xdc [ 66.460000] {SOFTIRQ-ON-W} state was registered at: [ 66.460000] [<d00421f0>] lock_acquire+0xec/0x13c [ 66.460000] [<d01ea036>] _raw_spin_lock+0x3a/0x84 [ 66.460000] [<d0006c8c>] rs_open+0x18/0x58 [ 66.460000] [<d0139ea2>] tty_open+0x262/0x3cc [ 66.460000] [<d00942e0>] chrdev_open+0x8c/0xe0 [ 66.460000] [<d00907b2>] do_dentry_open$isra$16+0x10e/0x190 [ 66.460000] [<d0091141>] finish_open+0x39/0x48 [ 66.460000] [<d009a0b4>] do_last$isra$34+0x6c4/0x824 [ 66.460000] [<d009a27a>] path_openat+0x66/0x310 [ 66.460000] [<d009a53a>] do_filp_open+0x16/0x44 [ 66.460000] [<d0091445>] do_sys_open+0xd5/0x13c [ 66.460000] [<d00914be>] sys_open+0x12/0x18 [ 66.460000] [<d0413ffc>] kernel_init_freeable+0xe4/0x12c [ 66.460000] [<d01e2a9c>] kernel_init+0xc/0x9c [ 66.460000] [<d00044fc>] ret_from_kernel_thread+0x8/0xc [ 66.460000] irq event stamp: 132542 [ 66.460000] hardirqs last enabled at (132542): [<d01ea2ec>] _raw_spin_unlock_irq+0x30/0x44 [ 66.460000] hardirqs last disabled at (132541): [<d01ea11e>] _raw_spin_lock_irq+0xe/0x8c [ 66.460000] softirqs last enabled at (132234): [<d0017d32>] __do_softirq+0x216/0x2a4 [ 66.460000] softirqs last disabled at (132539): [<d0018024>] irq_exit+0x38/0x40 [ 66.460000] [ 66.460000] other info that might help us debug this: [ 66.460000] Possible unsafe locking scenario: [ 66.460000] [ 66.460000] CPU0 [ 66.460000] ---- [ 66.460000] lock(timer_lock); [ 66.460000] <Interrupt> [ 66.460000] lock(timer_lock); [ 66.460000] [ 66.460000] *** DEADLOCK *** [ 66.460000] [ 66.460000] 1 lock held by swapper/1: [ 66.460000] #0: (((&serial_timer))){+.-...}, at: [<d001c65c>] call_timer_fn+0x0/0x1f0 [ 66.460000] Stack: d7c2fac0 00000018 00000004 00000001 d7c2faa0 00000004 00000006 d7c2fa90 9003e87c d7c2fae0 d7c30000 d025a87c 00000001 0000000f 00000000 d7c2fac0 9004005d d7c2fb10 d7c30000 d7c30338 00000001 00000001 00000000 d7c30338 [ 66.460000] Call Trace: [ 66.460000] [<d01e4f93>] print_usage_bug$part$26+0x1c3/0x1c8 [ 66.460000] [<d003e87c>] mark_lock+0x2b4/0x440 [ 66.460000] [<d004005d>] __lock_acquire+0x54d/0x16c4 [ 66.460000] [<d00421f0>] lock_acquire+0xec/0x13c [ 66.460000] [<d01ea036>] _raw_spin_lock+0x3a/0x84 [ 66.460000] [<d0006cde>] rs_poll+0x12/0xdc [ 66.460000] [<d001c71a>] call_timer_fn+0xbe/0x1f0 [ 66.460000] [<d001cd90>] run_timer_softirq+0x198/0x1f4 [ 66.460000] [<d0017c30>] __do_softirq+0x114/0x2a4 [ 66.460000] [<d0018024>] irq_exit+0x38/0x40 [ 66.460000] [<d00046c0>] do_IRQ+0x44/0x48 [ 66.460000] [<d0005c58>] do_interrupt+0x4c/0x54 [ 66.460000] [<d0003c80>] common_exception_return+0x0/0x5c [ 66.460000] [<d006682c>] free_pcppages_bulk+0x254/0x308 [ 66.460000] Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: don't use a7 in simcallsMax Filippov2013-05-093-18/+18
| | | | | | | | | | | | | | | | | | To support FRAME_POINTER avoid using a7 in __simc (none of the existing simcalls needs it). Replace calls to __simc with more specific simc_read, simc_write and simc_lseek calls. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: provide default platform_pcibios_init implementationMax Filippov2013-05-091-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the following build error: arch/xtensa/kernel/built-in.o:(.init.literal+0xe8): undefined reference to `platform_pcibios_init' arch/xtensa/kernel/built-in.o: In function `setup_arch': (.init.text+0x20e): undefined reference to `platform_pcibios_init' and allows platform to omit definition of platform_pcibios_init if it's empty. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: fix ibreakenable register updateMax Filippov2013-05-093-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | Only set the register when there is at least one ibreak register, otherwise the build fails: arch/xtensa/kernel/head.S:105: Error: invalid register 'ibreakenable' for 'wsr' instruction arch/xtensa/platforms/iss/setup.c:67: Error: invalid register 'ibreakenable' for 'wsr' instruction Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | xtensa simdisk: Fix proc_create_data() conversion falloutGeert Uytterhoeven2013-05-091-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/xtensa/platforms/iss/simdisk.c: In function 'proc_read_simdisk': arch/xtensa/platforms/iss/simdisk.c:220:12: warning: initialization discards 'const' qualifier from pointer target type [enabled by default] arch/xtensa/platforms/iss/simdisk.c: In function 'proc_write_simdisk': arch/xtensa/platforms/iss/simdisk.c:241:38: error: 'buffer' undeclared (first use in this function) arch/xtensa/platforms/iss/simdisk.c:241:38: note: each undeclared identifier is reported only once for each function it appears in Introduced by commit a69755b187749e7cc020e17127a54f395aea4eaa ("xtensa simdisk: switch to proc_create_data()") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | block_device_operations->release() should return voidAl Viro2013-05-071-2/+1
| | | | | | | | | | | | | | | | | | The value passed is 0 in all but "it can never happen" cases (and those only in a couple of drivers) *and* it would've been lost on the way out anyway, even if something tried to pass something meaningful. Just don't bother. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | xtensa simdisk: fix braino in "xtensa simdisk: switch to proc_create_data()"Al Viro2013-05-041-1/+1
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | procfs: new helper - PDE_DATA(inode)Al Viro2013-04-091-2/+2
| | | | | | | | | | | | | | | | | | | | The only part of proc_dir_entry the code outside of fs/proc really cares about is PDE(inode)->data. Provide a helper for that; static inline for now, eventually will be moved to fs/proc, along with the knowledge of struct proc_dir_entry layout. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | xtensa simdisk: switch to proc_create_data()Al Viro2013-04-091-13/+23
|/ | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge tag 'xtensa-next-20130225' of git://github.com/czankel/xtensa-linuxLinus Torvalds2013-02-263-2/+378
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull xtensa update from Chris Zankel: "Added features: - add support for thread local storage (TLS) - add accept4 and finit_module syscalls - support medium-priority interrupts - add support for dc232c processor variant - support file-base simulated disk for ISS simulator Bug fixes: - fix return values returned by the str[n]cmp functions - avoid mmap cache aliasing - fix handling of 'windowed registers' in ptrace" * tag 'xtensa-next-20130225' of git://github.com/czankel/xtensa-linux: xtensa: add accept4 syscall xtensa: add support for TLS xtensa: add missing include asm/uaccess.h to checksum.h xtensa: do not enable GENERIC_GPIO by default xtensa: complete ptrace handling of register windows xtensa: add support for oprofile xtensa: move spill_registers to traps.h xtensa: ISS: add host file-based simulated disk xtensa: fix str[n]cmp return value xtensa: avoid mmap cache aliasing xtensa: add finit_module syscall xtensa: pull signal definitions from signal-defs.h xtensa: fix ipc_parse_version selection xtensa: dispatch medium-priority interrupts xtensa: Add config files for Diamond 233L - Rev C processor variant xtensa: use new common dtc rule xtensa: rename prom_update_property to of_update_property
| * xtensa: ISS: add host file-based simulated diskVictor Prupis2013-02-232-0/+376
| | | | | | | | | | | | | | | | | | | | | | | | | | Simdisk is a block device that maps to a file in the host file system. It is usable for testing in the simulated environment, like xt-sim or QEMU. Device binding to host file may be changed at runtime via proc interface provided the device is not in use. Number of block devices and initial binding to host files is controlled via kernel/module parameters, with defaults specified in the kernel configuration. Signed-off-by: Victor Prupis <vnp@tensilica.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: rename prom_update_property to of_update_propertyMax Filippov2013-02-231-2/+2
| | | | | | | | | | | | | | | | This rename happened in 79d1c71 powerpc+of: Rename the drivers/of prom_* functions to of_*. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* | TTY: switch tty_flip_buffer_pushJiri Slaby2013-01-151-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. Now, the one where most of tty_port_tty_get gets removed: tty_flip_buffer_push. IOW we also closed all the races in drivers not using tty_port_tty_get at all yet. Also we move tty_flip_buffer_push declaration from include/linux/tty.h to include/linux/tty_flip.h to all others while we are changing it anyway. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | TTY: switch tty_insert_flip_charJiri Slaby2013-01-151-1/+2
|/ | | | | | | | | | | | | Now, we start converting tty buffer functions to actually use tty_port. This will allow us to get rid of the need of tty in many call sites. Only tty_port will needed and hence no more tty_port_tty_get in those paths. tty_insert_flip_char is the next one to proceed. This one is used all over the code, so the patch is huge. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* xtensa: set the correct ethernet address for xtfpgaChris Zankel2012-12-181-2/+34
| | | | | | | The last byte of the mac address is determined by a DIP switch, so update the OF property with that address. Signed-off-by: Chris Zankel <chris@zankel.net>
* Use for_each_compatible_node() macro.Wei Yongjun2012-12-181-2/+2
| | | | | | Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: add support for the XTFPGA boardsMax Filippov2012-12-186-0/+461
| | | | | | | | | The Avnet LX60/LX110/LX200 board is an FPGA board that can be configured with an Xtensa processor and an OpenCores Ethernet device. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: properly fix missing compiler barrier in simcallMax Filippov2012-12-181-6/+1
| | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: ISS: add BASE_BAUD definition to serial.hMax Filippov2012-12-181-0/+15
| | | | | | | | | | | This fixes the following build error in allyesconfig: drivers/tty/serial/8250/8250_early.c: In function 'parse_options': drivers/tty/serial/8250/8250_early.c:160:18: error: 'BASE_BAUD' undeclared (first use in this function) Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* TTY: call tty_port_destroy in the rest of driversJiri Slaby2012-11-151-0/+1
| | | | | | | | | | | | | | | | After commit "TTY: move tty buffers to tty_port", the tty buffers are not freed in some drivers. This is because tty_port_destructor is not called whenever a tty_port is freed. This was an assumption I counted with but was unfortunately untrue. So fix the drivers to fulfil this assumption. To be sure, the TTY buffers (and later some stuff) are gone along with the tty_port, we have to call tty_port_destroy at tear-down places. This is mostly where the structure containing a tty_port is freed. This patch does exactly that -- put tty_port_destroy at those places. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* xtensa: reorganize SR referencingMax Filippov2012-10-152-10/+10
| | | | | | | | | | - reference SRs by names where possible, not by numbers; - get rid of __stringify around SR names where possible; - remove unneeded SR names from asm/regs.h; - add SREG_ prefix to remaining SR names; Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: ISS: fix rs_put_charMax Filippov2012-10-151-7/+2
| | | | | | | | | | | ISS serial console prints garbage instead of symbols printed via rs_put_char. gcc optimizes away putting prined symbol into memory buffer because there's no evidence that the buffer is used afterwards. Make rs_put_char and rs_write use simc_write that has explicit wmb. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* xtensa: ISS: fix specific simcallsMax Filippov2012-10-151-2/+7
| | | | | | | | Simcalls that take memory buffer definitely need wmb or rmb to make sure gcc doesn't optimize away code that fills the buffer. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
* Merge tag 'xtensa-next-20121008' of git://github.com/czankel/xtensa-linuxLinus Torvalds2012-10-097-101/+66
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull Xtensa patchset from Chris Zankel: "The Xtensa tree has been broken for some time now, and this patchset brings it back to life. It has been part of the linux-next tree for some time. Most changes are inside the xtensa subdirectory; the other changes mostly add another rule to already existing #ifdefs to exclude Xtensa, where required. The only 'common' change is to add two more sections ('.xt.prop' and '.xt.lit') to the white list in modpost." * tag 'xtensa-next-20121008' of git://github.com/czankel/xtensa-linux: (27 commits) xtensa: Setup CROSS_COMPILE at the top xtensa: drop CONFIG_EMBEDDED_RAMDISK xtensa: fix TIOCGSERIAL and TIOCSSERIAL definitions xtensa: provide dummy gcc intrinsics xtensa: add missing symbol exports parport: disable for xtensa arch xtensa: rename MISC SR definition to avoid name clashes hisax: disable build for big-endian xtensa xtensa: fix CODA build xtensa: fix parallel make xtensa: ISS: drop unused io.c xtensa: ISS: exit simulator in case of halt or poweroff xtensa: ISS: change keyboard polling rate xtensa: ISS: add platform_pcibios_init xtensa: ISS: add dummy serial.h for ISS platform xtensa: change default platform clock frequency to 10MHz xtensa: add ARCH_WANT_OPTIONAL_GPIOLIB to xtensa config xtensa: set NO_IOPORT to 'n' by default xtensa: adopt generic io routines xtensa: fix ioremap ...
| * xtensa: ISS: drop unused io.cMax Filippov2012-10-032-33/+1
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: ISS: exit simulator in case of halt or poweroffMax Filippov2012-10-031-4/+4
| | | | | | | | | | Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
| * xtensa: ISS: change keyboard polling rateMax Filippov2012-10-031-1/+1
| | | | | | | | | | | | | | | | Polling rate of once per 20 seconds seems to be too low. Increase it to 10 times per second. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
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