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-rw-r--r--arch/sparc64/mm/tlb.c97
1 files changed, 0 insertions, 97 deletions
diff --git a/arch/sparc64/mm/tlb.c b/arch/sparc64/mm/tlb.c
deleted file mode 100644
index d8f21e24a82..00000000000
--- a/arch/sparc64/mm/tlb.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/* arch/sparc64/mm/tlb.c
- *
- * Copyright (C) 2004 David S. Miller <davem@redhat.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/percpu.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/preempt.h>
-
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/tlbflush.h>
-#include <asm/cacheflush.h>
-#include <asm/mmu_context.h>
-#include <asm/tlb.h>
-
-/* Heavily inspired by the ppc64 code. */
-
-DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
-
-void flush_tlb_pending(void)
-{
- struct mmu_gather *mp = &get_cpu_var(mmu_gathers);
-
- if (mp->tlb_nr) {
- flush_tsb_user(mp);
-
- if (CTX_VALID(mp->mm->context)) {
-#ifdef CONFIG_SMP
- smp_flush_tlb_pending(mp->mm, mp->tlb_nr,
- &mp->vaddrs[0]);
-#else
- __flush_tlb_pending(CTX_HWBITS(mp->mm->context),
- mp->tlb_nr, &mp->vaddrs[0]);
-#endif
- }
- mp->tlb_nr = 0;
- }
-
- put_cpu_var(mmu_gathers);
-}
-
-void tlb_batch_add(struct mm_struct *mm, unsigned long vaddr, pte_t *ptep, pte_t orig)
-{
- struct mmu_gather *mp = &__get_cpu_var(mmu_gathers);
- unsigned long nr;
-
- vaddr &= PAGE_MASK;
- if (pte_exec(orig))
- vaddr |= 0x1UL;
-
- if (tlb_type != hypervisor &&
- pte_dirty(orig)) {
- unsigned long paddr, pfn = pte_pfn(orig);
- struct address_space *mapping;
- struct page *page;
-
- if (!pfn_valid(pfn))
- goto no_cache_flush;
-
- page = pfn_to_page(pfn);
- if (PageReserved(page))
- goto no_cache_flush;
-
- /* A real file page? */
- mapping = page_mapping(page);
- if (!mapping)
- goto no_cache_flush;
-
- paddr = (unsigned long) page_address(page);
- if ((paddr ^ vaddr) & (1 << 13))
- flush_dcache_page_all(mm, page);
- }
-
-no_cache_flush:
-
- if (mp->fullmm)
- return;
-
- nr = mp->tlb_nr;
-
- if (unlikely(nr != 0 && mm != mp->mm)) {
- flush_tlb_pending();
- nr = 0;
- }
-
- if (nr == 0)
- mp->mm = mm;
-
- mp->vaddrs[nr] = vaddr;
- mp->tlb_nr = ++nr;
- if (nr >= TLB_BATCH_NR)
- flush_tlb_pending();
-}