diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/dma-mapping.h | 68 |
2 files changed, 6 insertions, 63 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index b447918b9e2c..9a7057ec2154 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -420,6 +420,7 @@ config PPC64_SUPPORTS_MEMORY_FAILURE config KEXEC bool "kexec system call" depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) + select KEXEC_CORE help kexec is a system call that implements the ability to shutdown your current kernel, and to start another kernel. It is like a reboot diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 710f60e380e0..7f522c021dc3 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -18,7 +18,9 @@ #include <asm/io.h> #include <asm/swiotlb.h> +#ifdef CONFIG_PPC64 #define DMA_ERROR_CODE (~(dma_addr_t)0x0) +#endif /* Some dma direct funcs must be visible for use in other dma_ops */ extern void *__dma_direct_alloc_coherent(struct device *dev, size_t size, @@ -120,71 +122,14 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off) /* this will be removed soon */ #define flush_write_buffers() -#include <asm-generic/dma-mapping-common.h> - -static inline int dma_supported(struct device *dev, u64 mask) -{ - struct dma_map_ops *dma_ops = get_dma_ops(dev); +#define HAVE_ARCH_DMA_SET_MASK 1 +extern int dma_set_mask(struct device *dev, u64 dma_mask); - if (unlikely(dma_ops == NULL)) - return 0; - if (dma_ops->dma_supported == NULL) - return 1; - return dma_ops->dma_supported(dev, mask); -} +#include <asm-generic/dma-mapping-common.h> -extern int dma_set_mask(struct device *dev, u64 dma_mask); extern int __dma_set_mask(struct device *dev, u64 dma_mask); extern u64 __dma_get_required_mask(struct device *dev); -#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) - -static inline void *dma_alloc_attrs(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag, - struct dma_attrs *attrs) -{ - struct dma_map_ops *dma_ops = get_dma_ops(dev); - void *cpu_addr; - - BUG_ON(!dma_ops); - - cpu_addr = dma_ops->alloc(dev, size, dma_handle, flag, attrs); - - debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr); - - return cpu_addr; -} - -#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) - -static inline void dma_free_attrs(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle, - struct dma_attrs *attrs) -{ - struct dma_map_ops *dma_ops = get_dma_ops(dev); - - BUG_ON(!dma_ops); - - debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - - dma_ops->free(dev, size, cpu_addr, dma_handle, attrs); -} - -static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - struct dma_map_ops *dma_ops = get_dma_ops(dev); - - debug_dma_mapping_error(dev, dma_addr); - if (dma_ops->mapping_error) - return dma_ops->mapping_error(dev, dma_addr); - -#ifdef CONFIG_PPC64 - return (dma_addr == DMA_ERROR_CODE); -#else - return 0; -#endif -} - static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) { #ifdef CONFIG_SWIOTLB @@ -210,9 +155,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) return daddr - get_dma_offset(dev); } -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - #define ARCH_HAS_DMA_MMAP_COHERENT static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, |