diff options
| -rw-r--r-- | arch/arm/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 5 | ||||
| -rw-r--r-- | arch/arm64/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm64/include/asm/dma-mapping.h | 5 | ||||
| -rw-r--r-- | include/linux/dma-mapping.h | 10 | ||||
| -rw-r--r-- | kernel/dma/Kconfig | 3 |
6 files changed, 12 insertions, 13 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c1cf44f00870..4bb36ae71b14 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -16,6 +16,7 @@ config ARM select ARCH_HAS_SET_MEMORY select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL select ARCH_HAS_STRICT_MODULE_RWX if MMU + select ARCH_HAS_TEARDOWN_DMA_OPS if MMU select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAVE_CUSTOM_GPIO_H select ARCH_HAS_GCOV_PROFILE_ALL diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index a224b6e39e58..03ba90ffc0f8 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -96,11 +96,6 @@ static inline unsigned long dma_max_pfn(struct device *dev) } #define dma_max_pfn(dev) dma_max_pfn(dev) -#ifdef CONFIG_MMU -#define arch_teardown_dma_ops arch_teardown_dma_ops -extern void arch_teardown_dma_ops(struct device *dev); -#endif - /* do not use this function in a driver */ static inline bool is_device_dma_coherent(struct device *dev) { diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 63909f318d56..87ec7be25e97 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -29,6 +29,7 @@ config ARM64 select ARCH_HAS_SYNC_DMA_FOR_DEVICE select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYSCALL_WRAPPER + select ARCH_HAS_TEARDOWN_DMA_OPS if IOMMU_SUPPORT select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_INLINE_READ_LOCK if !PREEMPT diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index de96507ee2c1..de98191e4c7d 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -29,11 +29,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return NULL; } -#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, it is only provided for * arch/arm/mm/xen.c, which is used by arm64 as well. diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 2b20d60e6158..4210c5c1dd21 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -681,9 +681,13 @@ static inline void arch_setup_dma_ops(struct device *dev, u64 dma_base, } #endif /* CONFIG_ARCH_HAS_SETUP_DMA_OPS */ -#ifndef arch_teardown_dma_ops -static inline void arch_teardown_dma_ops(struct device *dev) { } -#endif +#ifdef CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS +void arch_teardown_dma_ops(struct device *dev); +#else +static inline void arch_teardown_dma_ops(struct device *dev) +{ +} +#endif /* CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS */ static inline unsigned int dma_get_max_seg_size(struct device *dev) { diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig index 6014cad35e58..bde9179c6ed7 100644 --- a/kernel/dma/Kconfig +++ b/kernel/dma/Kconfig @@ -22,6 +22,9 @@ config HAVE_GENERIC_DMA_COHERENT config ARCH_HAS_SETUP_DMA_OPS bool +config ARCH_HAS_TEARDOWN_DMA_OPS + bool + config ARCH_HAS_SYNC_DMA_FOR_DEVICE bool |