diff options
| author | Will Deacon <will@kernel.org> | 2022-06-10 16:12:28 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-07-05 13:06:31 +0100 |
| commit | 7eacf1858bc86fe93b457c529a3a40e8b94d5af1 (patch) | |
| tree | 494c9a63a4497c850a71218fc00579e1f860d357 /arch/arm64/mm/cache.S | |
| parent | 4890cc18f94979b406f95708f8cb238eb2d0e5a9 (diff) | |
| download | linux-7eacf1858bc86fe93b457c529a3a40e8b94d5af1.tar.bz2 | |
arm64: mm: Remove assembly DMA cache maintenance wrappers
Remove the __dma_{flush,map,unmap}_area assembly wrappers and call the
appropriate cache maintenance functions directly from the DMA mapping
callbacks.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20220610151228.4562-3-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/mm/cache.S')
| -rw-r--r-- | arch/arm64/mm/cache.S | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/arch/arm64/mm/cache.S b/arch/arm64/mm/cache.S index 21c907987080..081058d4e436 100644 --- a/arch/arm64/mm/cache.S +++ b/arch/arm64/mm/cache.S @@ -194,44 +194,3 @@ SYM_FUNC_START(__pi_dcache_clean_pop) ret SYM_FUNC_END(__pi_dcache_clean_pop) SYM_FUNC_ALIAS(dcache_clean_pop, __pi_dcache_clean_pop) - -/* - * __dma_flush_area(start, size) - * - * clean & invalidate D / U line - * - * - start - virtual start address of region - * - size - size in question - */ -SYM_FUNC_START(__pi___dma_flush_area) - add x1, x0, x1 - dcache_by_line_op civac, sy, x0, x1, x2, x3 - ret -SYM_FUNC_END(__pi___dma_flush_area) -SYM_FUNC_ALIAS(__dma_flush_area, __pi___dma_flush_area) - -/* - * __dma_map_area(start, size, dir) - * - start - kernel virtual start address - * - size - size of region - * - dir - DMA direction - */ -SYM_FUNC_START(__pi___dma_map_area) - add x1, x0, x1 - b __pi_dcache_clean_poc -SYM_FUNC_END(__pi___dma_map_area) -SYM_FUNC_ALIAS(__dma_map_area, __pi___dma_map_area) - -/* - * __dma_unmap_area(start, size, dir) - * - start - kernel virtual start address - * - size - size of region - * - dir - DMA direction - */ -SYM_FUNC_START(__pi___dma_unmap_area) - add x1, x0, x1 - cmp w2, #DMA_TO_DEVICE - b.ne __pi_dcache_inval_poc - ret -SYM_FUNC_END(__pi___dma_unmap_area) -SYM_FUNC_ALIAS(__dma_unmap_area, __pi___dma_unmap_area) |