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x86: move dma_sync_single_for_cpu to common header

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i386 gets an empty function.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Glauber Costa 2008-03-25 18:36:25 -03:00 committed by Ingo Molnar
parent 72c784f82c
commit c01dd8cf7d
4 changed files with 13 additions and 17 deletions
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1
arch/x86/kernel/pci-base_32.c
View file

@ -35,6 +35,7 @@ static const struct dma_mapping_ops pci32_dma_ops = {
.unmap_single = NULL,
.map_sg = pci32_dma_map_sg,
.unmap_sg = NULL,
.sync_single_for_cpu = NULL,
};
const struct dma_mapping_ops *dma_ops = &pci32_dma_ops;

12
include/asm-x86/dma-mapping.h
View file

@ -91,4 +91,16 @@ dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
if (dma_ops->unmap_sg)
dma_ops->unmap_sg(hwdev, sg, nents, direction);
}
static inline void
dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
size_t size, int direction)
{
BUG_ON(!valid_dma_direction(direction));
if (dma_ops->sync_single_for_cpu)
dma_ops->sync_single_for_cpu(hwdev, dma_handle, size,
direction);
flush_write_buffers();
}
#endif

6
include/asm-x86/dma-mapping_32.h
View file

@ -32,12 +32,6 @@ dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
BUG_ON(!valid_dma_direction(direction));
}
static inline void
dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction)
{
}
static inline void
dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction)

11
include/asm-x86/dma-mapping_64.h
View file

@ -28,17 +28,6 @@ extern void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
#define dma_unmap_page dma_unmap_single
static inline void
dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle,
size_t size, int direction)
{
BUG_ON(!valid_dma_direction(direction));
if (dma_ops->sync_single_for_cpu)
dma_ops->sync_single_for_cpu(hwdev, dma_handle, size,
direction);
flush_write_buffers();
}
static inline void
dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle,
size_t size, int direction)