diff mbox series

[04/11] drm/msm/gpu: Only store local command buffers in the GPU state

Message ID 20181017162818.8498-5-jcrouse@codeaurora.org (mailing list archive)
State New, archived
Headers show
Series drm/msm GPU updates for 4.21 | expand

Commit Message

Jordan Crouse Oct. 17, 2018, 4:28 p.m. UTC
Instead of trying to store all the tagged buffers from a hanging
submit only store the command buffers that were not imported.
This cuts down on the amount of data stored in the GPU state to
the base minimum of useful information.

The downside is that this will make it more difficult to
successfully replay a hang with just the GPU state but there
isn't any reason why that functionality can't be added back
in later once we've figured out how to better communicate
such massive amounts of data.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---
 drivers/gpu/drm/msm/msm_gpu.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 192da89787dc..84ba8b0fd391 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -315,28 +315,28 @@  static void msm_gpu_crashstate_get_bo(struct msm_gpu_state *state,
 	struct msm_gpu_state_bo *state_bo = &state->bos[state->nr_bos];
 
 	/* Don't record write only objects */
-
 	state_bo->size = obj->base.size;
 	state_bo->iova = iova;
 
-	/* Only store the data for buffer objects marked for read */
-	if ((flags & MSM_SUBMIT_BO_READ)) {
+	/* Only store data for non imported buffer objects marked for read */
+	if ((flags & MSM_SUBMIT_BO_READ) && !obj->base.import_attach) {
 		void *ptr;
 
 		state_bo->data = kvmalloc(obj->base.size, GFP_KERNEL);
 		if (!state_bo->data)
-			return;
+			goto out;
 
 		ptr = msm_gem_get_vaddr_active(&obj->base);
 		if (IS_ERR(ptr)) {
 			kvfree(state_bo->data);
-			return;
+			state_bo->data = NULL;
+			goto out;
 		}
 
 		memcpy(state_bo->data, ptr, obj->base.size);
 		msm_gem_put_vaddr(&obj->base);
 	}
-
+out:
 	state->nr_bos++;
 }
 
@@ -364,12 +364,15 @@  static void msm_gpu_crashstate_capture(struct msm_gpu *gpu,
 	if (submit) {
 		int i;
 
-		state->bos = kcalloc(submit->nr_bos,
+		state->bos = kcalloc(submit->nr_cmds,
 			sizeof(struct msm_gpu_state_bo), GFP_KERNEL);
 
-		for (i = 0; state->bos && i < submit->nr_bos; 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);
+		}
 	}
 
 	/* Set the active crash state to be dumped on failure */