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Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/mm/init_64.c32
1 files changed, 21 insertions, 11 deletions
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 6ea73da2931..6ffc7e911d5 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -258,21 +258,16 @@ static inline void tsb_insert(struct tsb *ent, unsigned long tag, unsigned long
unsigned long _PAGE_ALL_SZ_BITS __read_mostly;
unsigned long _PAGE_SZBITS __read_mostly;
-void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
+static void flush_dcache(unsigned long pfn)
{
- struct mm_struct *mm;
- struct tsb *tsb;
- unsigned long tag, flags;
- unsigned long tsb_index, tsb_hash_shift;
+ struct page *page;
- if (tlb_type != hypervisor) {
- unsigned long pfn = pte_pfn(pte);
+ page = pfn_to_page(pfn);
+ if (page && page_mapping(page)) {
unsigned long pg_flags;
- struct page *page;
- if (pfn_valid(pfn) &&
- (page = pfn_to_page(pfn), page_mapping(page)) &&
- ((pg_flags = page->flags) & (1UL << PG_dcache_dirty))) {
+ pg_flags = page->flags;
+ if (pg_flags & (1UL << PG_dcache_dirty)) {
int cpu = ((pg_flags >> PG_dcache_cpu_shift) &
PG_dcache_cpu_mask);
int this_cpu = get_cpu();
@@ -290,6 +285,21 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t p
put_cpu();
}
}
+}
+
+void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
+{
+ struct mm_struct *mm;
+ struct tsb *tsb;
+ unsigned long tag, flags;
+ unsigned long tsb_index, tsb_hash_shift;
+
+ if (tlb_type != hypervisor) {
+ unsigned long pfn = pte_pfn(pte);
+
+ if (pfn_valid(pfn))
+ flush_dcache(pfn);
+ }
mm = vma->vm_mm;