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dma-debug: add checks for sync_single_* 

Impact: add debug callbacks for dma_sync_single_for_* functions

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
wifi-calibration
Joerg Roedel 2009-01-09 14:43:04 +01:00
parent 6bfd449876
commit b9d2317e0c
2 changed files with 41 additions and 0 deletions
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20
include/linux/dma-debug.h
View File

@ -49,6 +49,14 @@ extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
extern void debug_dma_free_coherent(struct device *dev, size_t size,
void *virt, dma_addr_t addr);
extern void debug_dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle, size_t size,
int direction);
extern void debug_dma_sync_single_for_device(struct device *dev,
dma_addr_t dma_handle,
size_t size, int direction);
#else /* CONFIG_DMA_API_DEBUG */
static inline void dma_debug_init(u32 num_entries)
@ -89,6 +97,18 @@ static inline void debug_dma_free_coherent(struct device *dev, size_t size,
{
}
static inline void debug_dma_sync_single_for_cpu(struct device *dev,
dma_addr_t dma_handle,
size_t size, int direction)
{
}
static inline void debug_dma_sync_single_for_device(struct device *dev,
dma_addr_t dma_handle,
size_t size, int direction)
{
}
#endif /* CONFIG_DMA_API_DEBUG */
#endif /* __DMA_DEBUG_H */

21
lib/dma-debug.c
View File

@ -737,3 +737,24 @@ void debug_dma_free_coherent(struct device *dev, size_t size,
}
EXPORT_SYMBOL(debug_dma_free_coherent);
void debug_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
size_t size, int direction)
{
if (unlikely(global_disable))
return;
check_sync(dev, dma_handle, size, 0, direction, true);
}
EXPORT_SYMBOL(debug_dma_sync_single_for_cpu);
void debug_dma_sync_single_for_device(struct device *dev,
dma_addr_t dma_handle, size_t size,
int direction)
{
if (unlikely(global_disable))
return;
check_sync(dev, dma_handle, size, 0, direction, false);
}
EXPORT_SYMBOL(debug_dma_sync_single_for_device);