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| author | Catalin Marinas <catalin.marinas@arm.com> | 2008-06-13 10:28:36 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-07-03 16:39:57 +0100 |
| commit | 826cbdaff29764bb6928c715c6a025e49469dda9 (patch) | |
| tree | 0fa040b3be05d88291eb5dca05f77202ad56ab45 /arch/arm/mm | |
| parent | 43df5220e455d426ec7462d0bf906e686c65ebb5 (diff) | |
| download | linux-826cbdaff29764bb6928c715c6a025e49469dda9.tar.bz2 | |
[ARM] 5092/1: Fix the I-cache invalidation on ARMv6 and later CPUs
This patch adds the I-cache invalidation in update_mmu_cache if the
corresponding vma is marked as executable. It also invalidates the
I-cache if a thread migrates to a CPU it never ran on.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/fault-armv.c | 4 | ||||
| -rw-r--r-- | arch/arm/mm/flush.c | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c index 44558d5f9313..fbfa26058442 100644 --- a/arch/arm/mm/fault-armv.c +++ b/arch/arm/mm/fault-armv.c @@ -144,13 +144,17 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t pte) page = pfn_to_page(pfn); mapping = page_mapping(page); if (mapping) { +#ifndef CONFIG_SMP int dirty = test_and_clear_bit(PG_dcache_dirty, &page->flags); if (dirty) __flush_dcache_page(mapping, page); +#endif if (cache_is_vivt()) make_coherent(mapping, vma, addr, pfn); + else if (vma->vm_flags & VM_EXEC) + __flush_icache_all(); } } diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c index 9df507d36e0b..029ee65fda2b 100644 --- a/arch/arm/mm/flush.c +++ b/arch/arm/mm/flush.c @@ -199,6 +199,8 @@ void flush_dcache_page(struct page *page) __flush_dcache_page(mapping, page); if (mapping && cache_is_vivt()) __flush_dcache_aliases(mapping, page); + else if (mapping) + __flush_icache_all(); } } EXPORT_SYMBOL(flush_dcache_page); |