diff options
Diffstat (limited to 'arch/mips/include/asm/cacheflush.h')
| -rw-r--r-- | arch/mips/include/asm/cacheflush.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cacheflush.h b/arch/mips/include/asm/cacheflush.h index 03b1d69b142..e08381a37f8 100644 --- a/arch/mips/include/asm/cacheflush.h +++ b/arch/mips/include/asm/cacheflush.h @@ -38,6 +38,7 @@ extern void (*flush_cache_range)(struct vm_area_struct *vma, extern void (*flush_cache_page)(struct vm_area_struct *vma, unsigned long page, unsigned long pfn); extern void __flush_dcache_page(struct page *page); +#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 static inline void flush_dcache_page(struct page *page) { if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc) @@ -112,5 +113,35 @@ unsigned long run_uncached(void *func); extern void *kmap_coherent(struct page *page, unsigned long addr); extern void kunmap_coherent(void); +extern void *kmap_noncoherent(struct page *page, unsigned long addr); + +static inline void kunmap_noncoherent(void) +{ + kunmap_coherent(); +} + +#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE +static inline void flush_kernel_dcache_page(struct page *page) +{ + BUG_ON(cpu_has_dc_aliases && PageHighMem(page)); +} + +/* + * For now flush_kernel_vmap_range and invalidate_kernel_vmap_range both do a + * cache writeback and invalidate operation. + */ +extern void (*__flush_kernel_vmap_range)(unsigned long vaddr, int size); + +static inline void flush_kernel_vmap_range(void *vaddr, int size) +{ + if (cpu_has_dc_aliases) + __flush_kernel_vmap_range((unsigned long) vaddr, size); +} + +static inline void invalidate_kernel_vmap_range(void *vaddr, int size) +{ + if (cpu_has_dc_aliases) + __flush_kernel_vmap_range((unsigned long) vaddr, size); +} #endif /* _ASM_CACHEFLUSH_H */ |