drm/msm: devcoredump should dump MSM_SUBMIT_BO_DUMP buffers

Also log buffers with the DUMP flag set, to ensure we capture all useful
cmdstream in crashdump state with modern mesa.

Otherwise we miss out on the contents of "state object" cmdstream
buffers.

v2: add missing 'inline'

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>

1 files changed, 23 insertions, 5 deletions

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 18f3a5c53ffb..615c5cda5389 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -355,16 +355,34 @@ static void msm_gpu_crashstate_capture(struct msm_gpu *gpu,
 	state->cmd = kstrdup(cmd, GFP_KERNEL);
 
 	if (submit) {
-		int i;
-
-		state->bos = kcalloc(submit->nr_cmds,
+		int i, nr = 0;
+
+		/* count # of buffers to dump: */
+		for (i = 0; i < submit->nr_bos; i++)
+			if (should_dump(submit, i))
+				nr++;
+		/* always dump cmd bo's, but don't double count them: */
+		for (i = 0; i < submit->nr_cmds; i++)
+			if (!should_dump(submit, submit->cmd[i].idx))
+				nr++;
+
+		state->bos = kcalloc(nr,
 			sizeof(struct msm_gpu_state_bo), GFP_KERNEL);
 
+		for (i = 0; i < submit->nr_bos; i++) {
+			if (should_dump(submit, i)) {
+				msm_gpu_crashstate_get_bo(state, submit->bos[i].obj,
+					submit->bos[i].iova, submit->bos[i].flags);
+			}
+		}
+
 		for (i = 0; state->bos && i < submit->nr_cmds; i++) {
 			int idx = submit->cmd[i].idx;
 
-			msm_gpu_crashstate_get_bo(state, submit->bos[idx].obj,
-				submit->bos[idx].iova, submit->bos[idx].flags);
+			if (!should_dump(submit, submit->cmd[i].idx)) {
+				msm_gpu_crashstate_get_bo(state, submit->bos[idx].obj,
+					submit->bos[idx].iova, submit->bos[idx].flags);
+			}
 		}
 	}