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>

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 */