lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86: dma-ops on highmem fix

Browse Source 
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Ingo Molnar
2008-04-19 19:19:56 +02:00
parent 4d92fbf231
commit 2be621498d
7 changed files with 28 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
include/asm-x86/dma-mapping.h
View File

@@ -16,10 +16,10 @@ struct dma_mapping_ops {
dma_addr_t *dma_handle, gfp_t gfp);
void (*free_coherent)(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle);
dma_addr_t (*map_single)(struct device *hwdev, void *ptr,
dma_addr_t (*map_single)(struct device *hwdev, phys_addr_t ptr,
size_t size, int direction);
/* like map_single, but doesn't check the device mask */
dma_addr_t (*map_simple)(struct device *hwdev, char *ptr,
dma_addr_t (*map_simple)(struct device *hwdev, phys_addr_t ptr,
size_t size, int direction);
void (*unmap_single)(struct device *dev, dma_addr_t addr,
size_t size, int direction);
@@ -73,7 +73,7 @@ dma_map_single(struct device *hwdev, void *ptr, size_t size,
int direction)
{
BUG_ON(!valid_dma_direction(direction));
return dma_ops->map_single(hwdev, ptr, size, direction);
return dma_ops->map_single(hwdev, virt_to_phys(ptr), size, direction);
}
static inline void
@@ -174,7 +174,9 @@ static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
size_t offset, size_t size,
int direction)
{
return dma_map_single(dev, page_address(page)+offset, size, direction);
BUG_ON(!valid_dma_direction(direction));
return dma_ops->map_single(dev, page_to_phys(page)+offset,
size, direction);
}
static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,