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author | 2018-05-11 08:36:53 +0200 | |
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committer | 2018-08-02 13:54:20 +0200 | |
commit | 6fa1d28e38cfa0c90f8d64c0cab37769e5337b85 (patch) | |
tree | e86521d0770694a10588bc70fd31624113da6484 /arch/sh/kernel/dma-coherent.c | |
parent | sh: split arch/sh/mm/consistent.c (diff) | |
download | linux-6fa1d28e38cfa0c90f8d64c0cab37769e5337b85.tar.gz linux-6fa1d28e38cfa0c90f8d64c0cab37769e5337b85.tar.bz2 linux-6fa1d28e38cfa0c90f8d64c0cab37769e5337b85.zip |
sh: use generic dma_noncoherent_ops
Switch to the generic noncoherent direct mapping implementation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Diffstat (limited to 'arch/sh/kernel/dma-coherent.c')
-rw-r--r-- | arch/sh/kernel/dma-coherent.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/arch/sh/kernel/dma-coherent.c b/arch/sh/kernel/dma-coherent.c index 2518065d5d27..a0021eef956b 100644 --- a/arch/sh/kernel/dma-coherent.c +++ b/arch/sh/kernel/dma-coherent.c @@ -7,14 +7,13 @@ */ #include <linux/mm.h> #include <linux/init.h> -#include <linux/dma-mapping.h> +#include <linux/dma-noncoherent.h> #include <linux/module.h> #include <asm/cacheflush.h> #include <asm/addrspace.h> -void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, - unsigned long attrs) +void *arch_dma_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, + gfp_t gfp, unsigned long attrs) { void *ret, *ret_nocache; int order = get_order(size); @@ -29,7 +28,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size, * Pages from the page allocator may have data present in * cache. So flush the cache before using uncached memory. */ - sh_sync_dma_for_device(ret, size, DMA_BIDIRECTIONAL); + arch_sync_dma_for_device(dev, virt_to_phys(ret), size, + DMA_BIDIRECTIONAL); ret_nocache = (void __force *)ioremap_nocache(virt_to_phys(ret), size); if (!ret_nocache) { @@ -46,9 +46,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size, return ret_nocache; } -void dma_generic_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle, - unsigned long attrs) +void arch_dma_free(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle, unsigned long attrs) { int order = get_order(size); unsigned long pfn = (dma_handle >> PAGE_SHIFT); @@ -63,12 +62,12 @@ void dma_generic_free_coherent(struct device *dev, size_t size, iounmap(vaddr); } -void sh_sync_dma_for_device(void *vaddr, size_t size, - enum dma_data_direction direction) +void arch_sync_dma_for_device(struct device *dev, phys_addr_t paddr, + size_t size, enum dma_data_direction dir) { - void *addr = sh_cacheop_vaddr(vaddr); + void *addr = sh_cacheop_vaddr(phys_to_virt(paddr)); - switch (direction) { + switch (dir) { case DMA_FROM_DEVICE: /* invalidate only */ __flush_invalidate_region(addr, size); break; |