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Subject[PATCH -tip 2/5] x86: use asm-generic/dma-mapping.h
Date
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
---
arch/x86/Kconfig | 1 +
arch/x86/include/asm/dma-mapping.h | 174 +-----------------------------------
2 files changed, 3 insertions(+), 172 deletions(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index fa4d702..13d26ce 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -47,6 +47,7 @@ config X86
select HAVE_KERNEL_BZIP2
select HAVE_KERNEL_LZMA
select HAVE_ARCH_KMEMCHECK
+ select HAVE_DMA_ATTRS

config OUTPUT_FORMAT
string
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 916cbb6..2c1cbd8 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -33,6 +33,8 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
#endif
}

+#include <asm-generic/dma-mapping.h>
+
/* Make sure we keep the same behaviour */
static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
@@ -53,178 +55,6 @@ extern int dma_set_mask(struct device *dev, u64 mask);
extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_addr, gfp_t flag);

-static inline dma_addr_t
-dma_map_single(struct device *hwdev, void *ptr, size_t size,
- enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(hwdev);
- dma_addr_t addr;
-
- kmemcheck_mark_initialized(ptr, size);
- BUG_ON(!valid_dma_direction(dir));
- addr = ops->map_page(hwdev, virt_to_page(ptr),
- (unsigned long)ptr & ~PAGE_MASK, size,
- dir, NULL);
- debug_dma_map_page(hwdev, virt_to_page(ptr),
- (unsigned long)ptr & ~PAGE_MASK, size,
- dir, addr, true);
- return addr;
-}
-
-static inline void
-dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size,
- enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
-
- BUG_ON(!valid_dma_direction(dir));
- if (ops->unmap_page)
- ops->unmap_page(dev, addr, size, dir, NULL);
- debug_dma_unmap_page(dev, addr, size, dir, true);
-}
-
-static inline int
-dma_map_sg(struct device *hwdev, struct scatterlist *sg,
- int nents, enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(hwdev);
- int ents;
-
- struct scatterlist *s;
- int i;
-
- for_each_sg(sg, s, nents, i)
- kmemcheck_mark_initialized(sg_virt(s), s->length);
- BUG_ON(!valid_dma_direction(dir));
- ents = ops->map_sg(hwdev, sg, nents, dir, NULL);
- debug_dma_map_sg(hwdev, sg, nents, ents, dir);
-
- return ents;
-}
-
-static inline void
-dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
- enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(hwdev);
-
- BUG_ON(!valid_dma_direction(dir));
- debug_dma_unmap_sg(hwdev, sg, nents, dir);
- if (ops->unmap_sg)
- ops->unmap_sg(hwdev, sg, nents, dir, NULL);
-}
-
-static inline void
-dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(hwdev);
-
- BUG_ON(!valid_dma_direction(dir));
- if (ops->sync_single_for_cpu)
- ops->sync_single_for_cpu(hwdev, dma_handle, size, dir);
- debug_dma_sync_single_for_cpu(hwdev, dma_handle, size, dir);
- flush_write_buffers();
-}
-
-static inline void
-dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(hwdev);
-
- BUG_ON(!valid_dma_direction(dir));
- if (ops->sync_single_for_device)
- ops->sync_single_for_device(hwdev, dma_handle, size, dir);
- debug_dma_sync_single_for_device(hwdev, dma_handle, size, dir);
- flush_write_buffers();
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
- unsigned long offset, size_t size,
- enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(hwdev);
-
- BUG_ON(!valid_dma_direction(dir));
- if (ops->sync_single_range_for_cpu)
- ops->sync_single_range_for_cpu(hwdev, dma_handle, offset,
- size, dir);
- debug_dma_sync_single_range_for_cpu(hwdev, dma_handle,
- offset, size, dir);
- flush_write_buffers();
-}
-
-static inline void
-dma_sync_single_range_for_device(struct device *hwdev, dma_addr_t dma_handle,
- unsigned long offset, size_t size,
- enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(hwdev);
-
- BUG_ON(!valid_dma_direction(dir));
- if (ops->sync_single_range_for_device)
- ops->sync_single_range_for_device(hwdev, dma_handle,
- offset, size, dir);
- debug_dma_sync_single_range_for_device(hwdev, dma_handle,
- offset, size, dir);
- flush_write_buffers();
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
- int nelems, enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(hwdev);
-
- BUG_ON(!valid_dma_direction(dir));
- if (ops->sync_sg_for_cpu)
- ops->sync_sg_for_cpu(hwdev, sg, nelems, dir);
- debug_dma_sync_sg_for_cpu(hwdev, sg, nelems, dir);
- flush_write_buffers();
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
- int nelems, enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(hwdev);
-
- BUG_ON(!valid_dma_direction(dir));
- if (ops->sync_sg_for_device)
- ops->sync_sg_for_device(hwdev, sg, nelems, dir);
- debug_dma_sync_sg_for_device(hwdev, sg, nelems, dir);
-
- flush_write_buffers();
-}
-
-static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
- size_t offset, size_t size,
- enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
- dma_addr_t addr;
-
- kmemcheck_mark_initialized(page_address(page) + offset, size);
- BUG_ON(!valid_dma_direction(dir));
- addr = ops->map_page(dev, page, offset, size, dir, NULL);
- debug_dma_map_page(dev, page, offset, size, dir, addr, false);
-
- return addr;
-}
-
-static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
- size_t size, enum dma_data_direction dir)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
-
- BUG_ON(!valid_dma_direction(dir));
- if (ops->unmap_page)
- ops->unmap_page(dev, addr, size, dir, NULL);
- debug_dma_unmap_page(dev, addr, size, dir, false);
-}
-
static inline void
dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction dir)
--
1.6.0.6


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