@@ -64,6 +64,13 @@ extern void debug_sync_single_range_for_device(struct device *dev,
unsigned long offset,
size_t size, int direction);
+extern void debug_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+ int nelems, int direction);
+
+extern void debug_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sg,
+ int nelems, int direction);
+
#else /* CONFIG_DMA_API_DEBUG */
static inline void dma_debug_init(u32 num_entries)
@@ -130,6 +137,18 @@ static inline void debug_sync_single_range_for_device(struct device *dev,
{
}
+static inline void debug_sync_sg_for_cpu(struct device *dev,
+ struct scatterlist *sg,
+ int nelems, int direction)
+{
+}
+
+static inline void debug_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sg,
+ int nelems, int direction)
+{
+}
+
#endif /* CONFIG_DMA_API_DEBUG */
#endif /* __DMA_DEBUG_H */
@@ -692,3 +692,35 @@ void debug_sync_single_range_for_device(struct device *dev,
}
EXPORT_SYMBOL(debug_sync_single_range_for_device);
+void debug_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+ int nelems, int direction)
+{
+ struct scatterlist *s;
+ int i;
+
+ if (global_disable)
+ return;
+
+ for_each_sg(sg, s, nelems, i) {
+ check_sync(dev, s->dma_address, s->dma_length, 0,
+ direction, true);
+ }
+}
+EXPORT_SYMBOL(debug_sync_sg_for_cpu);
+
+void debug_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+ int nelems, int direction)
+{
+ struct scatterlist *s;
+ int i;
+
+ if (global_disable)
+ return;
+
+ for_each_sg(sg, s, nelems, i) {
+ check_sync(dev, s->dma_address, s->dma_length, 0,
+ direction, false);
+ }
+}
+EXPORT_SYMBOL(debug_sync_sg_for_device);
+
Impact: add debug callbacks for dma_sync_sg_* functions Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> --- include/linux/dma-debug.h | 19 +++++++++++++++++++ lib/dma-debug.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 51 insertions(+), 0 deletions(-)