Some userspace changes are necessary so add a flag for userspace to
advertise support for preemption.
Signed-off-by: Antonino Maniscalco <antomani...@gmail.com>
---
drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 12 ++++++++----
include/uapi/drm/msm_drm.h | 5 ++++-
2 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 1a90db5759b8..86357016db8d 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -453,8 +453,10 @@ static void a7xx_submit(struct msm_gpu *gpu, struct
msm_gem_submit *submit)
OUT_PKT7(ring, CP_SET_MARKER, 1);
OUT_RING(ring, 0x101); /* IFPC disable */
- OUT_PKT7(ring, CP_SET_MARKER, 1);
- OUT_RING(ring, 0x00d); /* IB1LIST start */
+ if (submit->queue->flags & MSM_SUBMITQUEUE_ALLOW_PREEMPT) {
+ OUT_PKT7(ring, CP_SET_MARKER, 1);
+ OUT_RING(ring, 0x00d); /* IB1LIST start */
+ }
/* Submit the commands */
for (i = 0; i < submit->nr_cmds; i++) {
@@ -485,8 +487,10 @@ static void a7xx_submit(struct msm_gpu *gpu, struct
msm_gem_submit *submit)
update_shadow_rptr(gpu, ring);
}
- OUT_PKT7(ring, CP_SET_MARKER, 1);
- OUT_RING(ring, 0x00e); /* IB1LIST end */
+ if (submit->queue->flags & MSM_SUBMITQUEUE_ALLOW_PREEMPT) {
+ OUT_PKT7(ring, CP_SET_MARKER, 1);
+ OUT_RING(ring, 0x00e); /* IB1LIST end */
+ }
get_stats_counter(ring, REG_A7XX_RBBM_PERFCTR_CP(0),
rbmemptr_stats(ring, index, cpcycles_end));
diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h
index 3fca72f73861..f37858db34e6 100644
--- a/include/uapi/drm/msm_drm.h
+++ b/include/uapi/drm/msm_drm.h
@@ -345,7 +345,10 @@ struct drm_msm_gem_madvise {
* backwards compatibility as a "default" submitqueue
*/
-#define MSM_SUBMITQUEUE_FLAGS (0)
+#define MSM_SUBMITQUEUE_ALLOW_PREEMPT 0x00000001
+#define MSM_SUBMITQUEUE_FLAGS ( \
+ MSM_SUBMITQUEUE_ALLOW_PREEMPT | \
+ 0)
/*
* The submitqueue priority should be between 0 and MSM_PARAM_PRIORITIES-1,
--
2.46.0
