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| author |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 11:17:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 11:17:35 -0700 |
| commit | dc79747019b43c28d1f50aad69b8039f8d8db301 (patch) | |
| tree | 4e85f1e41a6df5e5ab0866901d29d2d08efdf426 /arch/powerpc/mm | |
| parent | x86_64: Fix xen section warnings (diff) | |
| parent | [POWERPC] Clean up duplicate includes in drivers/macintosh/ (diff) | |
| download | linux-dev-dc79747019b43c28d1f50aad69b8039f8d8db301.tar.xz linux-dev-dc79747019b43c28d1f50aad69b8039f8d8db301.zip | |
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
[POWERPC] Clean up duplicate includes in drivers/macintosh/
[POWERPC] Quiet section mismatch warning on pcibios_setup
[POWERPC] init and exit markings for hvc_iseries
[POWERPC] Quiet section mismatch in hvc_rtas.c
[POWERPC] Constify of_platform_driver match_table
[POWERPC] hvcs: Make some things static and const
[POWERPC] Constify of_platform_driver name
[POWERPC] MPIC protected sources
[POWERPC] of_detach_node()'s device node argument cannot be const
[POWERPC] Fix ARCH=ppc builds
[POWERPC] mv64x60: Use mutex instead of semaphore
[POWERPC] Allow smp_call_function_single() to current cpu
[POWERPC] Allow exec faults on readable areas on classic 32-bit PowerPC
[POWERPC] Fix future firmware feature fixups function failure
[POWERPC] fix showing xmon help
[POWERPC] Make xmon_write accept a const buffer
[POWERPC] Fix misspelled "CONFIG_CHECK_CACHE_COHERENCY" Kconfig option.
[POWERPC] cell: CONFIG_SPE_BASE is a typo
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/fault.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/mm/hash_utils_64.c | 4 |
2 files changed, 9 insertions, 3 deletions
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c index 3767211b3d0f..ab3546c5ac3a 100644 --- a/arch/powerpc/mm/fault.c +++ b/arch/powerpc/mm/fault.c @@ -283,7 +283,13 @@ good_area: /* protection fault */ if (error_code & DSISR_PROTFAULT) goto bad_area; - if (!(vma->vm_flags & VM_EXEC)) + /* + * Allow execution from readable areas if the MMU does not + * provide separate controls over reading and executing. + */ + if (!(vma->vm_flags & VM_EXEC) && + (cpu_has_feature(CPU_FTR_NOEXECUTE) || + !(vma->vm_flags & (VM_READ | VM_WRITE)))) goto bad_area; #else pte_t *ptep; diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c index 2ce9491b48d4..bc7b0cedae5e 100644 --- a/arch/powerpc/mm/hash_utils_64.c +++ b/arch/powerpc/mm/hash_utils_64.c @@ -609,7 +609,7 @@ static void demote_segment_4k(struct mm_struct *mm, unsigned long addr) mm->context.sllp = SLB_VSID_USER | mmu_psize_defs[MMU_PAGE_4K].sllp; #endif /* CONFIG_PPC_MM_SLICES */ -#ifdef CONFIG_SPE_BASE +#ifdef CONFIG_SPU_BASE spu_flush_all_slbs(mm); #endif } @@ -744,7 +744,7 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap) "to 4kB pages because of " "non-cacheable mapping\n"); psize = mmu_vmalloc_psize = MMU_PAGE_4K; -#ifdef CONFIG_SPE_BASE +#ifdef CONFIG_SPU_BASE spu_flush_all_slbs(mm); #endif } |