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x86: move dma_sync_sg_for_device 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 18:36:30 -03:00 committed by Ingo Molnar
parent ed435dee9c
commit e7f3a913f9
4 changed files with 12 additions and 19 deletions
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1
arch/x86/kernel/pci-base_32.c
View File

@ -40,6 +40,7 @@ static const struct dma_mapping_ops pci32_dma_ops = {
.sync_single_range_for_cpu = NULL,
.sync_single_range_for_device = NULL,
.sync_sg_for_cpu = NULL,
.sync_sg_for_device = NULL,
};
const struct dma_mapping_ops *dma_ops = &pci32_dma_ops;

11
include/asm-x86/dma-mapping.h
View File

@ -148,4 +148,15 @@ dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg,
dma_ops->sync_sg_for_cpu(hwdev, sg, nelems, direction);
flush_write_buffers();
}
static inline void
dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
int nelems, int direction)
{
BUG_ON(!valid_dma_direction(direction));
if (dma_ops->sync_sg_for_device)
dma_ops->sync_sg_for_device(hwdev, sg, nelems, direction);
flush_write_buffers();
}
#endif

7
include/asm-x86/dma-mapping_32.h
View File

@ -32,13 +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_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
enum dma_data_direction direction)
{
flush_write_buffers();
}
static inline int
dma_mapping_error(dma_addr_t dma_addr)
{

12
include/asm-x86/dma-mapping_64.h
View File

@ -27,18 +27,6 @@ extern void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_map_single((dev), page_address(page)+(offset), (size), (dir))
#define dma_unmap_page dma_unmap_single
static inline void
dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg,
int nelems, int direction)
{
BUG_ON(!valid_dma_direction(direction));
if (dma_ops->sync_sg_for_device) {
dma_ops->sync_sg_for_device(hwdev, sg, nelems, direction);
}
flush_write_buffers();
}
extern int dma_supported(struct device *hwdev, u64 mask);
/* same for gart, swiotlb, and nommu */