diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/include/asm/dma-mapping.h | 5 | ||||
| -rw-r--r-- | arch/arm64/mm/dma-mapping.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index 0a2d13332545..b7847eb8a7bb 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -39,6 +39,11 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, const struct iommu_ops *iommu, bool coherent); #define arch_setup_dma_ops arch_setup_dma_ops +#ifdef CONFIG_IOMMU_DMA +void arch_teardown_dma_ops(struct device *dev); +#define arch_teardown_dma_ops arch_teardown_dma_ops +#endif + /* do not use this function in a driver */ static inline bool is_device_dma_coherent(struct device *dev) { diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index cdcb73db9ea2..072c51fb07d7 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -862,6 +862,11 @@ out_err: dev_name(dev)); } +void arch_teardown_dma_ops(struct device *dev) +{ + dev->dma_ops = NULL; +} + #else static void __iommu_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, |