diff options
Diffstat (limited to 'arch/nds32/mm/cacheflush.c')
| -rw-r--r-- | arch/nds32/mm/cacheflush.c | 53 |
1 files changed, 32 insertions, 21 deletions
diff --git a/arch/nds32/mm/cacheflush.c b/arch/nds32/mm/cacheflush.c index ce8fd34497bf..7fcaa4e6be78 100644 --- a/arch/nds32/mm/cacheflush.c +++ b/arch/nds32/mm/cacheflush.c @@ -13,6 +13,38 @@ extern struct cache_info L1_cache_info[2]; +void flush_icache_range(unsigned long start, unsigned long end) +{ + unsigned long line_size, flags; + line_size = L1_cache_info[DCACHE].line_size; + start = start & ~(line_size - 1); + end = (end + line_size - 1) & ~(line_size - 1); + local_irq_save(flags); + cpu_cache_wbinval_range(start, end, 1); + local_irq_restore(flags); +} +EXPORT_SYMBOL(flush_icache_range); + +void flush_icache_page(struct vm_area_struct *vma, struct page *page) +{ + unsigned long flags; + unsigned long kaddr; + local_irq_save(flags); + kaddr = (unsigned long)kmap_atomic(page); + cpu_cache_wbinval_page(kaddr, vma->vm_flags & VM_EXEC); + kunmap_atomic((void *)kaddr); + local_irq_restore(flags); +} +EXPORT_SYMBOL(flush_icache_page); + +void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, + unsigned long addr, int len) +{ + unsigned long kaddr; + kaddr = (unsigned long)kmap_atomic(page) + (addr & ~PAGE_MASK); + flush_icache_range(kaddr, kaddr + len); + kunmap_atomic((void *)kaddr); +} #ifndef CONFIG_CPU_CACHE_ALIASING void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t * pte) @@ -318,27 +350,6 @@ void invalidate_kernel_vmap_range(void *addr, int size) } EXPORT_SYMBOL(invalidate_kernel_vmap_range); -void flush_icache_range(unsigned long start, unsigned long end) -{ - unsigned long line_size, flags; - line_size = L1_cache_info[DCACHE].line_size; - start = start & ~(line_size - 1); - end = (end + line_size - 1) & ~(line_size - 1); - local_irq_save(flags); - cpu_cache_wbinval_range(start, end, 1); - local_irq_restore(flags); -} -EXPORT_SYMBOL(flush_icache_range); - -void flush_icache_page(struct vm_area_struct *vma, struct page *page) -{ - unsigned long flags; - local_irq_save(flags); - cpu_cache_wbinval_page((unsigned long)page_address(page), - vma->vm_flags & VM_EXEC); - local_irq_restore(flags); -} - void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t * pte) { |