lib: Add aux surface state to igt_buf

Store a bit of aux surface state in igt_buf. This will be needed
for rendercopy AUX_CCS_E color compression.

We also have to sprinkle memset()s and whatnot all over to make
sure the current igt_buf users don't leave the aux stuff full
of stack garbage.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 11 insertions, 7 deletions

diff --git a/lib/intel_batchbuffer.h b/lib/intel_batchbuffer.h
index 8acfdbbf..2dcb09ce 100644
--- a/lib/intel_batchbuffer.h
+++ b/lib/intel_batchbuffer.h
@@ -223,13 +223,17 @@ void intel_copy_bo(struct intel_batchbuffer *batch,
  * fill functions.
  */
 struct igt_buf {
-    drm_intel_bo *bo;
-    uint32_t stride;
-    uint32_t tiling;
-    uint32_t *data;
-    uint32_t size;
-    /*< private >*/
-    unsigned num_tiles;
+	drm_intel_bo *bo;
+	uint32_t stride;
+	uint32_t tiling;
+	uint32_t *data;
+	uint32_t size;
+	struct {
+		uint32_t offset;
+		uint32_t stride;
+	} aux;
+	/*< private >*/
+	unsigned num_tiles;
 };
 
 unsigned igt_buf_width(const struct igt_buf *buf);