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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/mips/include/asm/dma-mapping.h | |
| parent | Initial commit. (diff) | |
| download | linux-upstream/4.19.249.tar.xz linux-upstream/4.19.249.zip | |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/mips/include/asm/dma-mapping.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h new file mode 100644 index 000000000..e81c4e97f --- /dev/null +++ b/arch/mips/include/asm/dma-mapping.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_DMA_MAPPING_H +#define _ASM_DMA_MAPPING_H + +#include <linux/swiotlb.h> + +extern const struct dma_map_ops jazz_dma_ops; + +static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) +{ +#if defined(CONFIG_MACH_JAZZ) + return &jazz_dma_ops; +#elif defined(CONFIG_SWIOTLB) + return &swiotlb_dma_ops; +#elif defined(CONFIG_DMA_NONCOHERENT_OPS) + return &dma_noncoherent_ops; +#else + return &dma_direct_ops; +#endif +} + +#define arch_setup_dma_ops arch_setup_dma_ops +static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, + u64 size, const struct iommu_ops *iommu, + bool coherent) +{ +#ifdef CONFIG_DMA_PERDEV_COHERENT + dev->archdata.dma_coherent = coherent; +#endif +} + +#endif /* _ASM_DMA_MAPPING_H */ |