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-rw-r--r--include/linux/dma-debug.h20
-rw-r--r--lib/dma-debug.c21
2 files changed, 41 insertions, 0 deletions
diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index cb72dfd87326..0eee7af5143f 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -49,6 +49,14 @@ extern void debug_dma_alloc_coherent(struct device *dev, size_t size,
49extern void debug_dma_free_coherent(struct device *dev, size_t size, 49extern void debug_dma_free_coherent(struct device *dev, size_t size,
50 void *virt, dma_addr_t addr); 50 void *virt, dma_addr_t addr);
51 51
52extern void debug_dma_sync_single_for_cpu(struct device *dev,
53 dma_addr_t dma_handle, size_t size,
54 int direction);
55
56extern void debug_dma_sync_single_for_device(struct device *dev,
57 dma_addr_t dma_handle,
58 size_t size, int direction);
59
52#else /* CONFIG_DMA_API_DEBUG */ 60#else /* CONFIG_DMA_API_DEBUG */
53 61
54static inline void dma_debug_init(u32 num_entries) 62static 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,
89{ 97{
90} 98}
91 99
100static inline void debug_dma_sync_single_for_cpu(struct device *dev,
101 dma_addr_t dma_handle,
102 size_t size, int direction)
103{
104}
105
106static inline void debug_dma_sync_single_for_device(struct device *dev,
107 dma_addr_t dma_handle,
108 size_t size, int direction)
109{
110}
111
92#endif /* CONFIG_DMA_API_DEBUG */ 112#endif /* CONFIG_DMA_API_DEBUG */
93 113
94#endif /* __DMA_DEBUG_H */ 114#endif /* __DMA_DEBUG_H */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 44af837f68ef..714cfb6ca0e4 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -737,3 +737,24 @@ void debug_dma_free_coherent(struct device *dev, size_t size,
737} 737}
738EXPORT_SYMBOL(debug_dma_free_coherent); 738EXPORT_SYMBOL(debug_dma_free_coherent);
739 739
740void debug_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
741 size_t size, int direction)
742{
743 if (unlikely(global_disable))
744 return;
745
746 check_sync(dev, dma_handle, size, 0, direction, true);
747}
748EXPORT_SYMBOL(debug_dma_sync_single_for_cpu);
749
750void debug_dma_sync_single_for_device(struct device *dev,
751 dma_addr_t dma_handle, size_t size,
752 int direction)
753{
754 if (unlikely(global_disable))
755 return;
756
757 check_sync(dev, dma_handle, size, 0, direction, false);
758}
759EXPORT_SYMBOL(debug_dma_sync_single_for_device);
760