[PATCH 2/2] MIPS: Loongson64: Add cache_sync to loongson_dma_map_ops
From: Huacai Chen <hidden>
Date: 2017-11-16 08:35:58
Subsystem:
mips, mips/loongson64 architecture, the rest · Maintainers:
Thomas Bogendoerfer, Huacai Chen, Jiaxun Yang, Linus Torvalds
To support coherent & non-coherent DMA co-exsistance, we should add cache_sync to loongson_dma_map_ops. Signed-off-by: Huacai Chen <redacted> --- arch/mips/include/asm/dma-mapping.h | 3 +++ arch/mips/loongson64/common/dma-swiotlb.c | 1 + arch/mips/mm/dma-default.c | 2 +- 3 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 0d9418d..5544276 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h@@ -37,4 +37,7 @@ static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, #endif } +void mips_dma_cache_sync(struct device *dev, void *vaddr, + size_t size, enum dma_data_direction direction); + #endif /* _ASM_DMA_MAPPING_H */
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index ef07740..17956f2 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c@@ -120,6 +120,7 @@ static const struct dma_map_ops loongson_dma_map_ops = { .sync_sg_for_device = loongson_dma_sync_sg_for_device, .mapping_error = swiotlb_dma_mapping_error, .dma_supported = loongson_dma_supported, + .cache_sync = mips_dma_cache_sync, }; void __init plat_swiotlb_setup(void)
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index e3e94d0..e86bf5d 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c@@ -383,7 +383,7 @@ static int mips_dma_supported(struct device *dev, u64 mask) return plat_dma_supported(dev, mask); } -static void mips_dma_cache_sync(struct device *dev, void *vaddr, size_t size, +void mips_dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { BUG_ON(direction == DMA_NONE);
--
2.7.0