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Subject[PATCH 13/16] dma-debug: add checks for sync_single_range_*
Date
Impact: add debug callbacks for dma_sync_single_range_for_* functions

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---
include/linux/dma-debug.h | 27 +++++++++++++++++++++++++++
lib/dma-debug.c | 24 ++++++++++++++++++++++++
2 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/include/linux/dma-debug.h b/include/linux/dma-debug.h
index fea15f3..4daaa82 100644
--- a/include/linux/dma-debug.h
+++ b/include/linux/dma-debug.h
@@ -56,6 +56,17 @@ extern void debug_dma_sync_single_for_device(struct device *dev,
dma_addr_t dma_handle,
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 */

static inline void dma_debug_init(u32 num_entries)
@@ -108,6 +119,22 @@ 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 /* __DMA_DEBUG_H */
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 9715f40..125b6a2 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -695,3 +695,27 @@ void debug_dma_sync_single_for_device(struct device *dev,
}
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);
+
--
1.5.6.4



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