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Commit e2066c1c authored by Larry Bassel's avatar Larry Bassel Committed by Mark Salyzyn
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ANDROID: GKI: arm64: provide dma cache routines with same API as 32 bit 



Add defines for dmac_*_range for compatibility with arm32

CRs-Fixed: 1053067
Change-Id: I6456c02bad73fb54a874dc9925d3d43d9b8be2f2
Signed-off-by: default avatarLarry Bassel <lbassel@codeaurora.org>
(cherry picked from commit 0930bab0db67cc0d91e52e385e3e061871c6be05)
Signed-off-by: default avatarPrasad Sodagudi <psodagud@codeaurora.org>
(cherry picked from commit a313e54567627a1fd96cd267e2c6c358d14e468c)
[salyzyn squashed in commit 4008eb49]
Signed-off-by: default avatarMark Salyzyn <salyzyn@google.com>
Bug: 141888626
parent 7bd9061f

arch/arm64/include/asm/cacheflush.h

+9 −0
Original line number Diff line number Diff line
@@ -131,6 +131,15 @@ static inline void flush_cache_range(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_area(const void *, size_t);

extern void __dma_inv_area(const void *start, size_t size);

extern void __dma_clean_area(const void *start, size_t size);



#define dmac_flush_range(start, end) \

	__dma_flush_area(start, (void *)(end) - (void *)(start))

#define dmac_inv_range(start, end) \

	__dma_inv_area(start, (void *)(end) - (void *)(start))

#define dmac_clean_range(start, end) \

	__dma_clean_area(start, (void *)(end) - (void *)(start))



/*

 * Copy user data from/to a page which is mapped into a different

arch/arm64/mm/cache.S

+2 −2
Original line number Diff line number Diff line
@@ -230,7 +230,7 @@ ENTRY(__inval_dcache_area) 
 *	- start   - virtual start address of region

 *	- size    - size in question

 */

__dma_inv_area:

ENTRY(__dma_inv_area)

	add	x1, x1, x0

	dcache_line_size x2, x3

	sub	x3, x2, #1
@@ -269,7 +269,7 @@ ENTRY(__clean_dcache_area_poc) 
 *	- start   - virtual start address of region

 *	- size    - size in question

 */

__dma_clean_area:

ENTRY(__dma_clean_area)

	dcache_by_line_op cvac, sy, x0, x1, x2, x3

	ret

ENDPIPROC(__clean_dcache_area_poc)