diff options
Diffstat (limited to 'arch/sh/mm/pg-sh4.c')
| -rw-r--r-- | arch/sh/mm/pg-sh4.c | 28 |
1 files changed, 3 insertions, 25 deletions
diff --git a/arch/sh/mm/pg-sh4.c b/arch/sh/mm/pg-sh4.c index 3f98d2a4f93..969efeceb92 100644 --- a/arch/sh/mm/pg-sh4.c +++ b/arch/sh/mm/pg-sh4.c @@ -13,7 +13,7 @@ extern struct mutex p3map_mutex[]; -#define CACHE_ALIAS (cpu_data->dcache.alias_mask) +#define CACHE_ALIAS (current_cpu_data.dcache.alias_mask) /* * clear_user_page @@ -23,7 +23,6 @@ extern struct mutex p3map_mutex[]; */ void clear_user_page(void *to, unsigned long address, struct page *page) { - __set_bit(PG_mapped, &page->flags); if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) clear_page(to); else { @@ -40,7 +39,7 @@ void clear_user_page(void *to, unsigned long address, struct page *page) mutex_lock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); set_pte(pte, entry); local_irq_save(flags); - __flush_tlb_page(get_asid(), p3_addr); + flush_tlb_one(get_asid(), p3_addr); local_irq_restore(flags); update_mmu_cache(NULL, p3_addr, entry); __clear_user_page((void *)p3_addr, to); @@ -59,7 +58,6 @@ void clear_user_page(void *to, unsigned long address, struct page *page) void copy_user_page(void *to, void *from, unsigned long address, struct page *page) { - __set_bit(PG_mapped, &page->flags); if (((address ^ (unsigned long)to) & CACHE_ALIAS) == 0) copy_page(to, from); else { @@ -76,7 +74,7 @@ void copy_user_page(void *to, void *from, unsigned long address, mutex_lock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); set_pte(pte, entry); local_irq_save(flags); - __flush_tlb_page(get_asid(), p3_addr); + flush_tlb_one(get_asid(), p3_addr); local_irq_restore(flags); update_mmu_cache(NULL, p3_addr, entry); __copy_user_page((void *)p3_addr, from, to); @@ -84,23 +82,3 @@ void copy_user_page(void *to, void *from, unsigned long address, mutex_unlock(&p3map_mutex[(address & CACHE_ALIAS)>>12]); } } - -/* - * For SH-4, we have our own implementation for ptep_get_and_clear - */ -inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) -{ - pte_t pte = *ptep; - - pte_clear(mm, addr, ptep); - if (!pte_not_present(pte)) { - unsigned long pfn = pte_pfn(pte); - if (pfn_valid(pfn)) { - struct page *page = pfn_to_page(pfn); - struct address_space *mapping = page_mapping(page); - if (!mapping || !mapping_writably_mapped(mapping)) - __clear_bit(PG_mapped, &page->flags); - } - } - return pte; -} |