diff options
Diffstat (limited to 'arch/powerpc/kernel/dma.c')
| -rw-r--r-- | arch/powerpc/kernel/dma.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c index ccf129d47d84..6215062caf8c 100644 --- a/arch/powerpc/kernel/dma.c +++ b/arch/powerpc/kernel/dma.c @@ -7,6 +7,7 @@ #include <linux/device.h> #include <linux/dma-mapping.h> +#include <linux/dma-debug.h> #include <linux/lmb.h> #include <asm/bug.h> #include <asm/abs_addr.h> @@ -20,13 +21,6 @@ * default the offset is PCI_DRAM_OFFSET. */ -unsigned long get_dma_direct_offset(struct device *dev) -{ - if (dev) - return (unsigned long)dev->archdata.dma_data; - - return PCI_DRAM_OFFSET; -} void *dma_direct_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag) @@ -36,7 +30,7 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size, ret = __dma_alloc_coherent(dev, size, dma_handle, flag); if (ret == NULL) return NULL; - *dma_handle += get_dma_direct_offset(dev); + *dma_handle += get_dma_offset(dev); return ret; #else struct page *page; @@ -50,7 +44,7 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size, return NULL; ret = page_address(page); memset(ret, 0, size); - *dma_handle = virt_to_abs(ret) + get_dma_direct_offset(dev); + *dma_handle = virt_to_abs(ret) + get_dma_offset(dev); return ret; #endif @@ -74,7 +68,7 @@ static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl, int i; for_each_sg(sgl, sg, nents, i) { - sg->dma_address = sg_phys(sg) + get_dma_direct_offset(dev); + sg->dma_address = sg_phys(sg) + get_dma_offset(dev); sg->dma_length = sg->length; __dma_sync_page(sg_page(sg), sg->offset, sg->length, direction); } @@ -109,7 +103,7 @@ static inline dma_addr_t dma_direct_map_page(struct device *dev, { BUG_ON(dir == DMA_NONE); __dma_sync_page(page, offset, size, dir); - return page_to_phys(page) + offset + get_dma_direct_offset(dev); + return page_to_phys(page) + offset + get_dma_offset(dev); } static inline void dma_direct_unmap_page(struct device *dev, @@ -140,7 +134,7 @@ static inline void dma_direct_sync_single_range(struct device *dev, } #endif -struct dma_mapping_ops dma_direct_ops = { +struct dma_map_ops dma_direct_ops = { .alloc_coherent = dma_direct_alloc_coherent, .free_coherent = dma_direct_free_coherent, .map_sg = dma_direct_map_sg, @@ -156,3 +150,13 @@ struct dma_mapping_ops dma_direct_ops = { #endif }; EXPORT_SYMBOL(dma_direct_ops); + +#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16) + +static int __init dma_init(void) +{ + dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); + + return 0; +} +fs_initcall(dma_init); |