dma-debug: add checks for sync_single_sg_*

Impact: add debug callbacks for dma_sync_sg_* functions

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index d1c0ac1831b7..9d11e89c2ee2 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -782,3 +782,35 @@ void debug_dma_sync_single_range_for_device(struct device *dev,
 }
 EXPORT_SYMBOL(debug_dma_sync_single_range_for_device);
 
+void debug_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+                               int nelems, int direction)
+{
+        struct scatterlist *s;
+        int i;
+
+        if (unlikely(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_dma_sync_sg_for_cpu);
+
+void debug_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+                                  int nelems, int direction)
+{
+        struct scatterlist *s;
+        int i;
+
+        if (unlikely(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_dma_sync_sg_for_device);
+