[PATCH 02/10] drm/etnaviv: add internal representation of readback

[Christian Gmeiner]

Signed-off-by: Christian Gmeiner <christian.gmeiner at gmail.com>
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
index 73c278d..6527ceb 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h
@@ -87,6 +87,12 @@ struct etnaviv_chip_identity {
 	u8 varyings_count;
 };
 
+struct etnaviv_readback {
+	u32 *bo_vma;
+	u32 offset;
+	u32 reg;
+};
+
 struct etnaviv_event {
 	bool used;
 	struct fence *fence;
@@ -168,6 +174,9 @@ struct etnaviv_cmdbuf {
 	u32 exec_state;
 	/* per GPU in-flight list */
 	struct list_head node;
+	/* readback's attached to this command buffer */
+	unsigned int nr_readbacks;
+	struct etnaviv_readback *readbacks;
 	/* BOs attached to this command buffer */
 	unsigned int nr_bos;
 	struct etnaviv_vram_mapping *bo_map[0];
-- 
2.9.3