summaryrefslogtreecommitdiff
path: root/arch/arm64/include/asm/cacheflush.h
diff options
context:
space:
mode:
authorKwangwoo Lee <kwangwoo.lee@sk.com>2016-08-02 03:50:50 +0300
committerWill Deacon <will.deacon@arm.com>2016-08-22 12:00:48 +0300
commitd34fdb7081394cbf93fa6571d990086356f4ea9d (patch)
treec0c324d47c405bfe0cab6be1146f0a36278ecf8a /arch/arm64/include/asm/cacheflush.h
parent421dd6fa6709ebee4f888ed89da5c103c77caee1 (diff)
downloadlinux-d34fdb7081394cbf93fa6571d990086356f4ea9d.tar.xz
arm64: mm: convert __dma_* routines to use start, size
__dma_* routines have been converted to use start and size instread of start and end addresses. The patch was origianlly for adding __clean_dcache_area_poc() which will be used in pmem driver to clean dcache to the PoC(Point of Coherency) in arch_wb_cache_pmem(). The functionality of __clean_dcache_area_poc() was equivalent to __dma_clean_range(). The difference was __dma_clean_range() uses the end address, but __clean_dcache_area_poc() uses the size to clean. Thus, __clean_dcache_area_poc() has been revised with a fallthrough function of __dma_clean_range() after the change that __dma_* routines use start and size instead of using start and end. As a consequence of using start and size, the name of __dma_* routines has also been altered following the terminology below: area: takes a start and size range: takes a start and end Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Kwangwoo Lee <kwangwoo.lee@sk.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/cacheflush.h')
-rw-r--r--arch/arm64/include/asm/cacheflush.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/cacheflush.h b/arch/arm64/include/asm/cacheflush.h
index c64268dbff64..2e5fb976a572 100644
--- a/arch/arm64/include/asm/cacheflush.h
+++ b/arch/arm64/include/asm/cacheflush.h
@@ -68,6 +68,7 @@
extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
extern void flush_icache_range(unsigned long start, unsigned long end);
extern void __flush_dcache_area(void *addr, size_t len);
+extern void __clean_dcache_area_poc(void *addr, size_t len);
extern void __clean_dcache_area_pou(void *addr, size_t len);
extern long __flush_cache_user_range(unsigned long start, unsigned long end);
@@ -85,7 +86,7 @@ static inline void flush_cache_page(struct vm_area_struct *vma,
*/
extern void __dma_map_area(const void *, size_t, int);
extern void __dma_unmap_area(const void *, size_t, int);
-extern void __dma_flush_range(const void *, const void *);
+extern void __dma_flush_area(const void *, size_t);
/*
* Copy user data from/to a page which is mapped into a different