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-rw-r--r--src/gallium/drivers/radeon/r600_buffer_common.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeon/r600_buffer_common.c b/src/gallium/drivers/radeon/r600_buffer_common.c
index a7ecfb3e440..d56a6441eae 100644
--- a/src/gallium/drivers/radeon/r600_buffer_common.c
+++ b/src/gallium/drivers/radeon/r600_buffer_common.c
@@ -285,7 +285,7 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
/* Copy the VRAM buffer to the staging buffer. */
rctx->dma_copy(ctx, &staging->b.b, 0,
- box->x % R600_MAP_BUFFER_ALIGNMENT,
+ offset + box->x % R600_MAP_BUFFER_ALIGNMENT,
0, 0, resource, level, box);
/* Just do the synchronization. The buffer is mapped already. */