diff options
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/Kconfig | 1 | ||||
-rw-r--r-- | arch/powerpc/include/asm/dma-direct.h | 29 | ||||
-rw-r--r-- | arch/powerpc/include/asm/dma-mapping.h | 25 |
3 files changed, 30 insertions, 25 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c51e6ce42e7a..887285eb684a 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -139,6 +139,7 @@ config PPC select ARCH_HAS_ELF_RANDOMIZE select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_GCOV_PROFILE_ALL + select ARCH_HAS_PHYS_TO_DMA select ARCH_HAS_PMEM_API if PPC64 select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE select ARCH_HAS_SG_CHAIN diff --git a/arch/powerpc/include/asm/dma-direct.h b/arch/powerpc/include/asm/dma-direct.h new file mode 100644 index 000000000000..a5b59c765426 --- /dev/null +++ b/arch/powerpc/include/asm/dma-direct.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef ASM_POWERPC_DMA_DIRECT_H +#define ASM_POWERPC_DMA_DIRECT_H 1 + +static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) +{ +#ifdef CONFIG_SWIOTLB + struct dev_archdata *sd = &dev->archdata; + + if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr) + return false; +#endif + + if (!dev->dma_mask) + return false; + + return addr + size - 1 <= *dev->dma_mask; +} + +static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) +{ + return paddr + get_dma_offset(dev); +} + +static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) +{ + return daddr - get_dma_offset(dev); +} +#endif /* ASM_POWERPC_DMA_DIRECT_H */ diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 592c7f418aa0..f6ab51205a85 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -112,31 +112,6 @@ extern int dma_set_mask(struct device *dev, u64 dma_mask); extern u64 __dma_get_required_mask(struct device *dev); -static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) -{ -#ifdef CONFIG_SWIOTLB - struct dev_archdata *sd = &dev->archdata; - - if (sd->max_direct_dma_addr && addr + size > sd->max_direct_dma_addr) - return false; -#endif - - if (!dev->dma_mask) - return false; - - return addr + size - 1 <= *dev->dma_mask; -} - -static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr) -{ - return paddr + get_dma_offset(dev); -} - -static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) -{ - return daddr - get_dma_offset(dev); -} - #define ARCH_HAS_DMA_MMAP_COHERENT #endif /* __KERNEL__ */ |