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* [PATCH 1/2] drm/msm: fix rd dumping for split-IB1
@ 2019-10-07 20:31 ` Rob Clark
  0 siblings, 0 replies; 4+ messages in thread
From: Rob Clark @ 2019-10-07 20:31 UTC (permalink / raw)
  To: dri-devel
  Cc: freedreno, Rob Clark, Rob Clark, Sean Paul, David Airlie,
	Daniel Vetter, open list:DRM DRIVER FOR MSM ADRENO GPU,
	open list

From: Rob Clark <robdclark@chromium.org>

When IB1 is split into multiple cmd buffers, we'd emit multiple
RD_CMDSTREAM_ADDR per submit.  But after this packet is handled
by the cffdump parser, it resets it's known buffers on the next
GPUADDR packet, so subsequent RD_CMDSTREAM_ADDR packets from the
same submit would not find their buffers.

Re-work the loop to snapshot all buffers before RD_CMDSTREAM_ADDR
to avoid this problem.

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
 drivers/gpu/drm/msm/msm_rd.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/msm_rd.c b/drivers/gpu/drm/msm/msm_rd.c
index 76d3fdd17bf8..f8f654301def 100644
--- a/drivers/gpu/drm/msm/msm_rd.c
+++ b/drivers/gpu/drm/msm/msm_rd.c
@@ -382,7 +382,6 @@ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
 			snapshot_buf(rd, submit, i, 0, 0);
 
 	for (i = 0; i < submit->nr_cmds; i++) {
-		uint64_t iova = submit->cmd[i].iova;
 		uint32_t szd  = submit->cmd[i].size; /* in dwords */
 
 		/* snapshot cmdstream bo's (if we haven't already): */
@@ -390,6 +389,11 @@ void msm_rd_dump_submit(struct msm_rd_state *rd, struct msm_gem_submit *submit,
 			snapshot_buf(rd, submit, submit->cmd[i].idx,
 					submit->cmd[i].iova, szd * 4);
 		}
+	}
+
+	for (i = 0; i < submit->nr_cmds; i++) {
+		uint64_t iova = submit->cmd[i].iova;
+		uint32_t szd  = submit->cmd[i].size; /* in dwords */
 
 		switch (submit->cmd[i].type) {
 		case MSM_SUBMIT_CMD_IB_TARGET_BUF:
-- 
2.21.0


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2019-10-07 20:35 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2019-10-07 20:31 [PATCH 1/2] drm/msm: fix rd dumping for split-IB1 Rob Clark
2019-10-07 20:31 ` Rob Clark
2019-10-07 20:31 ` [PATCH 2/2] drm/msm: always dump buffer base/size Rob Clark
2019-10-07 20:31   ` Rob Clark

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