diff options
Diffstat (limited to 'arch/sparc/mm')
| -rw-r--r-- | arch/sparc/mm/init_64.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 6ea73da29312..6ffc7e911d50 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; |