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linux/arch/powerpc/mm
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David Gibson 77058e1adc powerpc: Fix address masking bug in hpte_need_flush() 
Commit f71dc176aa 'Make
hpte_need_flush() correctly mask for multiple page sizes' introduced
bug, which is triggered when a kernel with a 64k base page size is run
on a system whose hardware does not 64k hash PTEs.  In this case, we
emulate 64k pages with multiple 4k hash PTEs, however in
hpte_need_flush() we incorrectly only mask the hardware page size from
the address, instead of the logical page size.  This causes things to
go wrong when we later attempt to iterate through the hardware
subpages of the logical page.

This patch corrects the error.  It has been tested on pSeries bare
metal by Michael Neuling.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-02-10 13:58:06 +11:00
..
40x_mmu.c powerpc: fix up for mmu_mapin_ram api change 2009-12-14 09:04:24 -07:00
44x_mmu.c powerpc: fix up for mmu_mapin_ram api change 2009-12-14 09:04:24 -07:00
dma-noncoherent.c powerpc: Fix up dma_alloc_coherent() on platforms without cache coherency. 2009-05-27 16:33:59 +10:00
fault.c powerpc/8xx: Invalidate non present TLBs 2009-12-09 17:10:35 +11:00
fsl_booke_mmu.c Merge branch 'next' of git://git.secretlab.ca/git/linux-2.6 2009-12-16 13:26:53 -08:00
gup.c powerpc/mm: Allow more flexible layouts for hugepage pagetables 2009-10-30 17:20:58 +11:00
hash_low_32.S powerpc: Use names rather than numbers for SPRGs (v2) 2009-08-20 10:12:27 +10:00
hash_low_64.S powerpc: Free a PTE bit on ppc64 with 64K pages 2008-06-30 22:30:53 +10:00
hash_native_64.c powerpc: Add 2.06 tlbie mnemonics 2009-05-21 15:44:21 +10:00
hash_utils_64.c powerpc/mm: Fix stupid bug in subpge protection handling 2009-12-18 14:55:44 +11:00
highmem.c powerpc/mm: Make k(un)map_atomic out of line 2009-06-26 14:37:25 +10:00
hugetlbpage-hash64.c powerpc/mm: Bring hugepage PTE accessor functions back into sync with normal accessors 2009-10-30 17:21:23 +11:00
hugetlbpage.c powerpc/mm: Fix bug in gup_hugepd() 2009-11-27 14:24:30 +11:00
init_32.c powerpc: allow ioremap within reserved memory regions 2009-12-12 22:24:32 -07:00
init_64.c powerpc/mm: Allow more flexible layouts for hugepage pagetables 2009-10-30 17:20:58 +11:00
Makefile powerpc/mm: Split hash MMU specific hugepage code into a new file 2009-10-30 17:20:59 +11:00
mem.c powerpc/mm: Bring hugepage PTE accessor functions back into sync with normal accessors 2009-10-30 17:21:23 +11:00
mmap_64.c powerpc: Use helpers for rlimits 2010-01-15 13:20:08 +11:00
mmu_context_hash32.c powerpc/mm: Split mmu_context handling 2008-12-21 14:21:15 +11:00
mmu_context_hash64.c powerpc/mm: Fix pgtable cache cleanup with CONFIG_PPC_SUBPAGE_PROT 2009-12-08 15:59:33 +11:00
mmu_context_nohash.c powerpc/mm: Fix typo of cpumask_clear_cpu() 2009-12-18 14:54:27 +11:00
mmu_decl.h Merge branch 'next' of git://git.secretlab.ca/git/linux-2.6 2009-12-16 13:26:53 -08:00
numa.c powerpc: Set init_bootmem_done on NUMA platforms as well 2009-06-09 16:43:04 +10:00
pgtable_32.c powerpc/mm: Fix a WARN_ON() with CONFIG_DEBUG_PAGEALLOC and CONFIG_DEBUG_VM 2009-12-18 14:54:26 +11:00
pgtable_64.c powerpc/mm: Add support for SPARSEMEM_VMEMMAP on 64-bit Book3E 2009-08-20 10:25:10 +10:00
pgtable.c powerpc/mm: Cleanup management of kmem_caches for pagetables 2009-10-30 17:20:57 +11:00
ppc_mmu_32.c wii: use both mem1 and mem2 as ram 2009-12-12 22:24:31 -07:00
slb_low.S powerpc/mm: Fix hang accessing top of vmalloc space 2009-10-14 16:58:36 +11:00
slb.c powerpc/pseries: Fix to handle slb resize across migration 2009-09-02 16:19:01 +10:00
slice.c powerpc: is_hugepage_only_range() must account for both 4kB and 64kB slices 2009-01-16 16:15:16 +11:00
stab.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2009-09-15 09:39:44 -07:00
subpage-prot.c powerpc/mm: Fix pgtable cache cleanup with CONFIG_PPC_SUBPAGE_PROT 2009-12-08 15:59:33 +11:00
tlb_hash32.c powerpc/mm: Rework & cleanup page table freeing code path 2009-08-20 10:24:56 +10:00
tlb_hash64.c powerpc: Fix address masking bug in hpte_need_flush() 2010-02-10 13:58:06 +11:00
tlb_low_64e.S powerpc/mm: Remove duplicated #include 2009-09-24 15:31:42 +10:00
tlb_nohash_low.S powerpc/booke: Move MMUCSR definition into mmu-book3e.h 2009-08-24 20:48:05 -05:00
tlb_nohash.c powerpc/mm: Add support for SPARSEMEM_VMEMMAP on 64-bit Book3E 2009-08-20 10:25:10 +10:00