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linux/arch/powerpc/mm
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Aneesh Kumar K.V eda8eebdd1 powerpc/mm: Fix hash computation function 
The ASM version of hash computation function was truncating the upper bit.
Make the ASM version similar to hpt_hash function. Remove masking vsid bits.
Without this patch, we observed hang during bootup due to not satisfying page
fault request correctly. The fault handler used wrong hash values to update
the HPTE. Hence we kept looping with page fault.

hash_page(ea=000001003e260008, access=203, trap=300 ip=3fff91787134 dsisr 42000000
The computed value of hash 000000000f22f390
update: avpnv=4003e46054003e00, hash=000000000722f390, f=80000006, psize: 2 ...

BenH: The over-masking has been there for ever but only hurts with the
new 64T support introduced in 3.7

Reported-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Tested-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org> [v3.7]
2013-02-04 15:15:08 +11:00
..
40x_mmu.c memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
44x_mmu.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
dma-noncoherent.c powerpc: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:14 +08:00
fault.c mm, oom: remove statically defined arch functions of same name 2012-12-12 17:38:34 -08:00
fsl_booke_mmu.c powerpc/fsl-booke: Fixup calc_cam_sz to support MMU v2 2012-03-15 12:12:19 -05:00
gup.c powerpc: remove superfluous PageTail checks on the pte gup_fast 2011-11-02 16:06:57 -07:00
hash_low_32.S powerpc: Use CURRENT_THREAD_INFO instead of open coded assembly 2012-07-11 14:18:22 +10:00
hash_low_64.S powerpc/mm: Fix hash computation function 2013-02-04 15:15:08 +11:00
hash_native_64.c powerpc: Remove tlb batching hack for nighthawk 2012-09-27 12:51:06 +10:00
hash_utils_64.c powerpc/mm: Increase the slice range to 64TB 2012-09-17 16:31:50 +10:00
highmem.c mm: fix race in kunmap_atomic() 2010-10-27 18:03:05 -07:00
hugetlbpage-book3e.c powerpc/book3e: Change hugetlb preload to take vma argument 2011-12-07 16:26:24 +11:00
hugetlbpage-hash64.c powerpc/mm: Convert virtual address to vpn 2012-09-17 16:31:49 +10:00
hugetlbpage.c powerpc: fix compile fail in hugetlb cmdline parsing 2012-05-07 16:51:19 -07:00
icswx_pid.c powerpc: Split ICSWX ACOP and PID processing 2011-11-25 14:11:27 +11:00
icswx.c powerpc/icswx: Fix race condition with IPI setting ACOP 2012-03-07 17:06:09 +11:00
icswx.h powerpc/icswx: Fix race condition with IPI setting ACOP 2012-03-07 17:06:09 +11:00
init_32.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
init_64.c powerpc: Remove all includes of <asm/abs_addr.h> 2012-09-05 15:19:33 +10:00
Makefile powerpc: Split ICSWX ACOP and PID processing 2011-11-25 14:11:27 +11:00
mem.c powerpc/swiotlb: Enable at early stage and disable if not necessary 2012-09-12 14:57:09 -05:00
mmap_64.c powerpc+sparc64/mm: Remove hack in mmap randomize layout 2011-11-28 11:42:09 +11:00
mmu_context_hash32.c powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:30:38 -04:00
mmu_context_hash64.c powerpc/mm: Update VSID allocation documentation 2012-09-17 16:31:53 +10:00
mmu_context_nohash.c powerpc: use clear_tasks_mm_cpumask() 2012-05-31 17:49:29 -07:00
mmu_decl.h powerpc/fsl-booke: Fix setup_initial_memory_limit to not blindly map 2011-10-11 23:30:41 -05:00
numa.c powerpc+of: Move of_drconf_cell struct definition to asm/prom.h 2012-11-15 09:43:55 +11:00
pgtable_32.c Disintegrate asm/system.h for PowerPC 2012-03-28 18:30:02 +01:00
pgtable_64.c powerpc/mm: Make some of the PGTABLE_RANGE dependency explicit 2012-09-17 16:31:53 +10:00
pgtable.c powerpc: Hugetlb for BookE 2011-09-20 09:19:40 +10:00
ppc_mmu_32.c memblock: Remove rmo_size, burry it in arch/powerpc where it belongs 2010-08-05 12:56:08 +10:00
slb_low.S powerpc/mm: Add 64TB support 2012-09-17 16:31:51 +10:00
slb.c powerpc: Remove FW_FEATURE ISERIES from arch code 2012-03-21 11:16:11 +11:00
slice.c Fix misspellings of "whether" in comments. 2012-11-19 14:31:35 +01:00
stab.c powerpc/mm: Remove uses of abs_to_virt() and virt_to_abs() 2012-09-05 15:19:31 +10:00
subpage-prot.c powerpc/mm: Match variable types to API 2012-09-10 14:37:31 +10:00
tlb_hash32.c powerpc: include export.h for files using EXPORT_SYMBOL/THIS_MODULE 2011-10-31 19:30:38 -04:00
tlb_hash64.c POWERPC: drivers: remove __dev* attributes. 2013-01-03 15:57:04 -08:00
tlb_low_64e.S powerpc/booke64: Use SPRG0/3 scratch for bolted TLB miss & crit int 2012-09-05 15:35:52 +10:00
tlb_nohash_low.S powerpc/47x: Use the new ppc-opcode infrastructure 2012-11-15 12:59:24 +11:00
tlb_nohash.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-01-06 17:58:22 -08:00