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[ARM] 5092/1: Fix the I-cache invalidation on ARMv6 and later CPUs

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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>
This commit is contained in:
Catalin Marinas
2008-06-13 10:28:36 +01:00
committed by Russell King
parent 43df5220e4
commit 826cbdaff2
4 changed files with 18 additions and 0 deletions
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4
arch/arm/mm/fault-armv.c
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@@ -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();
}
}