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| author | Paul Mundt <lethal@linux-sh.org> | 2009-07-28 17:12:17 +0200 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-07-28 17:12:17 +0200 |
| commit | 9cef7492696a416663b4edb953a4eade8517ebeb (patch) | |
| tree | e52b19208a2197a624a7942e6c549d274a944fb0 /arch/sh/mm/tlb-sh4.c | |
| parent | sh: Use the now generic SH-4 clear/copy page ops for all MMU platforms. (diff) | |
| download | linux-9cef7492696a416663b4edb953a4eade8517ebeb.tar.xz linux-9cef7492696a416663b4edb953a4eade8517ebeb.zip | |
sh: update_mmu_cache() consolidation.
This splits out a separate __update_cache()/__update_tlb() for
update_mmu_cache() to wrap in to. This lets us share the common
__update_cache() bits while keeping special __update_tlb() handling
broken out.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/mm/tlb-sh4.c')
| -rw-r--r-- | arch/sh/mm/tlb-sh4.c | 29 |
1 files changed, 6 insertions, 23 deletions
diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c index cf50082d2435..81199f1e5945 100644 --- a/arch/sh/mm/tlb-sh4.c +++ b/arch/sh/mm/tlb-sh4.c @@ -15,33 +15,16 @@ #include <asm/mmu_context.h> #include <asm/cacheflush.h> -void update_mmu_cache(struct vm_area_struct * vma, - unsigned long address, pte_t pte) +void __update_tlb(struct vm_area_struct *vma, unsigned long address, pte_t pte) { - unsigned long flags; - unsigned long pteval; - unsigned long vpn; - unsigned long pfn = pte_pfn(pte); - struct page *page; + unsigned long flags, pteval, vpn; - /* Ptrace may call this routine. */ - if (vma && current->active_mm != vma->vm_mm) + /* + * Handle debugger faulting in for debugee. + */ + if (current->active_mm != vma->vm_mm) return; - page = pfn_to_page(pfn); - if (pfn_valid(pfn) && page_mapping(page)) { -#ifndef CONFIG_SMP - int dirty = test_and_clear_bit(PG_dcache_dirty, &page->flags); - if (dirty) { - - unsigned long addr = (unsigned long)page_address(page); - - if (pages_do_alias(addr, address & PAGE_MASK)) - __flush_wback_region((void *)addr, PAGE_SIZE); - } -#endif - } - local_irq_save(flags); /* Set PTEH register */ |