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dma-debug: add checks for sync_single_range_*

Impact: add debug callbacks for dma_sync_single_range_for_* functions

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Joerg Roedel 16 年之前
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948408ba3e
共有 2 个文件被更改,包括 51 次插入0 次删除
  1. 27 0
      include/linux/dma-debug.h
  2. 24 0
      lib/dma-debug.c

+ 27 - 0
include/linux/dma-debug.h

@@ -57,6 +57,17 @@ extern void debug_dma_sync_single_for_device(struct device *dev,
 					     dma_addr_t dma_handle,
 					     dma_addr_t dma_handle,
 					     size_t size, int direction);
 					     size_t size, int direction);
 
 
+extern void debug_dma_sync_single_range_for_cpu(struct device *dev,
+						dma_addr_t dma_handle,
+						unsigned long offset,
+						size_t size,
+						int direction);
+
+extern void debug_dma_sync_single_range_for_device(struct device *dev,
+						   dma_addr_t dma_handle,
+						   unsigned long offset,
+						   size_t size, int direction);
+
 #else /* CONFIG_DMA_API_DEBUG */
 #else /* CONFIG_DMA_API_DEBUG */
 
 
 static inline void dma_debug_init(u32 num_entries)
 static inline void dma_debug_init(u32 num_entries)
@@ -109,6 +120,22 @@ static inline void debug_dma_sync_single_for_device(struct device *dev,
 {
 {
 }
 }
 
 
+static inline void debug_dma_sync_single_range_for_cpu(struct device *dev,
+						       dma_addr_t dma_handle,
+						       unsigned long offset,
+						       size_t size,
+						       int direction)
+{
+}
+
+static inline void debug_dma_sync_single_range_for_device(struct device *dev,
+							  dma_addr_t dma_handle,
+							  unsigned long offset,
+							  size_t size,
+							  int direction)
+{
+}
+
 #endif /* CONFIG_DMA_API_DEBUG */
 #endif /* CONFIG_DMA_API_DEBUG */
 
 
 #endif /* __DMA_DEBUG_H */
 #endif /* __DMA_DEBUG_H */

+ 24 - 0
lib/dma-debug.c

@@ -758,3 +758,27 @@ void debug_dma_sync_single_for_device(struct device *dev,
 }
 }
 EXPORT_SYMBOL(debug_dma_sync_single_for_device);
 EXPORT_SYMBOL(debug_dma_sync_single_for_device);
 
 
+void debug_dma_sync_single_range_for_cpu(struct device *dev,
+					 dma_addr_t dma_handle,
+					 unsigned long offset, size_t size,
+					 int direction)
+{
+	if (unlikely(global_disable))
+		return;
+
+	check_sync(dev, dma_handle, size, offset, direction, true);
+}
+EXPORT_SYMBOL(debug_dma_sync_single_range_for_cpu);
+
+void debug_dma_sync_single_range_for_device(struct device *dev,
+					    dma_addr_t dma_handle,
+					    unsigned long offset,
+					    size_t size, int direction)
+{
+	if (unlikely(global_disable))
+		return;
+
+	check_sync(dev, dma_handle, size, offset, direction, false);
+}
+EXPORT_SYMBOL(debug_dma_sync_single_range_for_device);
+