Commit-ID: b9d2317e0c4aed02afd20022083b2a485289605d
Gitweb: http://git.kernel.org/tip/b9d2317e0c4aed02afd20022083b2a485289605d
Author: Joerg Roedel <joerg.roedel@xxxxxxx>
AuthorDate: Fri, 9 Jan 2009 14:43:04 +0100
Commit: Joerg Roedel <joerg.roedel@xxxxxxx>
CommitDate: Thu, 5 Mar 2009 20:35:20 +0100
dma-debug: add checks for sync_single_*
Impact: add debug callbacks for dma_sync_single_for_* functions
Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx>
---
include/linux/dma-debug.h | 20 ++++++++++++++++++++
lib/dma-debug.c | 21 +++++++++++++++++++++
2 files changed, 41 insertions(+), 0 deletions(-)
diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index cb72dfd..0eee7af 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,
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 */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 44af837..714cfb6 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,
}
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);
+
--
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