summaryrefslogtreecommitdiffstats
path: root/arch/sh/mm/tlb-sh4.c
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2009-07-29 00:12:17 +0900
committerPaul Mundt <lethal@linux-sh.org>2009-07-29 00:12:17 +0900
commit9cef7492696a416663b4edb953a4eade8517ebeb (patch)
treee52b19208a2197a624a7942e6c549d274a944fb0 /arch/sh/mm/tlb-sh4.c
parent0dfae7d5a21901b28ec0452d71be64adf5ea323e (diff)
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.c29
1 files changed, 6 insertions, 23 deletions
diff --git a/arch/sh/mm/tlb-sh4.c b/arch/sh/mm/tlb-sh4.c
index cf50082d243..81199f1e594 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 */