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Huang Ying 81e88fdc43 ACPI, APEI, Generic Hardware Error Source POLL/IRQ/NMI notification type support 
Generic Hardware Error Source provides a way to report platform
hardware errors (such as that from chipset). It works in so called
"Firmware First" mode, that is, hardware errors are reported to
firmware firstly, then reported to Linux by firmware. This way, some
non-standard hardware error registers or non-standard hardware link
can be checked by firmware to produce more valuable hardware error
information for Linux.

This patch adds POLL/IRQ/NMI notification types support.

Because the memory area used to transfer hardware error information
from BIOS to Linux can be determined only in NMI, IRQ or timer
handler, but general ioremap can not be used in atomic context, so a
special version of atomic ioremap is implemented for that.

Known issue:

- Error information can not be printed for recoverable errors notified
  via NMI, because printk is not NMI-safe. Will fix this via delay
  printing to IRQ context via irq_work or make printk NMI-safe.

v2:

- adjust printk format per comments.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2011-01-12 03:06:19 -05:00
..
backing-dev.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
bootmem.c x86, memblock: Replace e820_/_early string with memblock_ 2010-08-27 11:13:47 -07:00
bounce.c bounce: call flush_dcache_page() after bounce_copy_vec() 2010-09-09 18:57:25 -07:00
compaction.c mm: compaction: handle active and inactive fairly in too_many_isolated 2010-09-09 18:57:24 -07:00
debug-pagealloc.c
dmapool.c mm: add a might_sleep_if() to dma_pool_alloc() 2010-10-26 16:52:08 -07:00
fadvise.c readahead: introduce FMODE_RANDOM for POSIX_FADV_RANDOM 2010-03-06 11:26:25 -08:00
failslab.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
filemap.c radix-tree: fix RCU bug 2010-11-12 07:55:32 -08:00
filemap_xip.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fremap.c Avoid pgoff overflow in remap_file_pages 2010-09-25 09:34:58 -07:00
highmem.c mm,x86: fix kmap_atomic_push vs ioremap_32.c 2010-10-27 18:03:05 -07:00
hugetlb.c mm/hugetlb.c: avoid double unlock_page() in hugetlb_fault() 2010-12-02 14:51:14 -08:00
hwpoison-inject.c HWPOISON, hugetlb: support hwpoison injection for hugepage 2010-08-11 09:23:11 +02:00
init-mm.c mm: provide init_mm mm_context initializer 2010-08-09 20:44:54 -07:00
internal.h mm: fix is_mem_section_removable() page_order BUG_ON check 2010-10-26 16:52:11 -07:00
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2010-10-22 17:31:36 -07:00
Kconfig.debug trivial: improve help text for mm debug config options 2009-09-21 15:14:57 +02:00
kmemcheck.c kmemcheck: Fix build errors due to missing slab.h 2010-03-30 22:02:32 +09:00
kmemleak-test.c percpu: clean up percpu variable definitions 2009-06-24 15:13:48 +09:00
kmemleak.c kmemleak: Fix typo in the comment 2010-08-08 21:57:23 +01:00
ksm.c ksm: annotate ksm_thread_mutex is no deadlock source 2010-12-02 14:51:15 -08:00
maccess.c MN10300: Save frame pointer in thread_info struct rather than global var 2010-10-27 17:29:01 +01:00
madvise.c HWPOISON: Add a madvise() injector for soft page offlining 2009-12-16 12:20:00 +01:00
Makefile percpu: use percpu allocator on UP too 2010-10-02 10:26:05 +03:00
memblock.c memblock: Annotate memblock functions with __init_memblock 2010-10-11 16:00:52 -07:00
memcontrol.c cgroups: make swap accounting default behavior configurable 2010-11-25 06:50:45 +09:00
memory-failure.c mem-hotplug: introduce {un}lock_memory_hotplug() 2010-12-02 14:51:15 -08:00
memory.c use clear_page()/copy_page() in favor of memset()/memcpy() on whole pages 2010-10-26 16:52:13 -07:00
memory_hotplug.c mem-hotplug: introduce {un}lock_memory_hotplug() 2010-12-02 14:51:15 -08:00
mempolicy.c mm/mempolicy.c: add rcu read lock to protect pid structure 2010-12-02 14:51:14 -08:00
mempool.c mm: remove broken 'kzalloc' mempool 2009-09-22 07:17:35 -07:00
migrate.c mm: fix error reporting in move_pages() syscall 2010-10-26 16:52:11 -07:00
mincore.c mincore: do nested page table walks 2010-05-25 08:06:58 -07:00
mlock.c mm: Move vma_stack_continue into mm.h 2010-09-09 09:05:06 -07:00
mm_init.c
mmap.c audit mmap 2010-10-30 08:45:43 -04:00
mmu_context.c exit: fix oops in sync_mm_rss 2010-03-24 16:31:21 -07:00
mmu_notifier.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
mmzone.c mm: page allocator: calculate a better estimate of NR_FREE_PAGES when memory is low and kswapd is awake 2010-09-09 18:57:25 -07:00
mprotect.c perf_events: Fix perf_counter_mmap() hook in mprotect() 2010-11-09 10:19:38 -08:00
mremap.c mm: remove pte_*map_nested() 2010-10-26 16:52:08 -07:00
msync.c sanitize vfs_fsync calling conventions 2010-05-21 18:31:21 -04:00
nommu.c nommu: yield CPU while disposing VM 2010-11-25 06:50:38 +09:00
oom_kill.c oom: kill all threads sharing oom killed task's mm 2010-10-26 16:52:05 -07:00
page-writeback.c writeback: remove the internal 5% low bound on dirty_ratio 2010-10-26 16:52:08 -07:00
page_alloc.c PM / Hibernate: Fix memory corruption related to swap 2010-12-06 23:52:08 +01:00
page_cgroup.c kmemleak: Annotate false positive in init_section_page_cgroup() 2010-07-19 11:54:14 +01:00
page_io.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
page_isolation.c mm: page_isolation: codeclean fix comment and rm unneeded val init 2010-10-26 16:52:11 -07:00
pagewalk.c mm: remove call to find_vma in pagewalk for non-hugetlbfs 2010-11-25 06:50:46 +09:00
percpu-km.c percpu: clear memory allocated with the km allocator 2010-10-02 10:28:42 +03:00
percpu-vm.c percpu: move vmalloc based chunk management into percpu-vm.c 2010-05-01 08:30:50 +02:00
percpu.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
prio_tree.c
quicklist.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
readahead.c readahead.c: fix comment 2010-05-25 08:07:00 -07:00
rmap.c rmap: make anon_vma_chain_free() static 2010-10-26 16:52:10 -07:00
shmem.c convert get_sb_nodev() users 2010-10-29 04:16:31 -04:00
slab.c replace nested max/min macros with {max,min}3 macro 2010-10-26 16:52:12 -07:00
slob.c slob: fix gfp flags for order-0 page allocations 2010-10-02 10:24:28 +03:00
slub.c slub: Fix a crash during slabinfo -v 2010-12-04 09:53:49 +02:00
sparse-vmemmap.c x86: Use memblock to replace early_res 2010-08-27 11:12:29 -07:00
sparse.c sparsemem: on no vmemmap path put mem_map on node high too 2010-05-25 08:06:56 -07:00
swap.c fuse: use release_pages() 2010-10-27 18:03:17 -07:00
swap_state.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
swapfile.c /proc/swaps: support polling 2010-10-26 16:52:11 -07:00
thrash.c mm: pass mm to grab_swap_token 2009-06-23 12:50:05 -07:00
truncate.c check ATTR_SIZE contraints in inode_change_ok 2010-08-09 16:47:39 -04:00
util.c export __get_user_pages_fast() function 2010-10-24 10:51:24 +02:00
vmalloc.c ACPI, APEI, Generic Hardware Error Source POLL/IRQ/NMI notification type support 2011-01-12 03:06:19 -05:00
vmscan.c vmscan: avoid setting zone congested if no page dirty 2010-11-12 07:55:31 -08:00
vmstat.c vmstat: fix dirty threshold ordering 2010-12-02 14:51:14 -08:00