drm/msm/gpu: Add GEM debug label to devcore

When trying to understand an iova fault devcore, once you figure out
which buffer we accessed beyond the end of, it is useful to see the
buffer's debug label.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/491910/
Link: https://lore.kernel.org/r/20220629211919.563585-3-robdclark@gmail.com

diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index 8d03e30..a049d5d 100644 (file)
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -824,6 +824,7 @@ void adreno_show(struct msm_gpu *gpu, struct msm_gpu_state *state,
                        drm_printf(p, "  - iova: 0x%016llx\n",
                                state->bos[i].iova);
                        drm_printf(p, "    size: %zd\n", state->bos[i].size);
+                       drm_printf(p, "    name: %-32s\n", state->bos[i].name);
 
                        adreno_show_object(p, &state->bos[i].data,
                                state->bos[i].size, &state->bos[i].encoded);

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 3314a13..e1ee850 100644 (file)
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -229,6 +229,10 @@ static void msm_gpu_crashstate_get_bo(struct msm_gpu_state *state,
        state_bo->size = obj->base.size;
        state_bo->iova = iova;
 
+       BUILD_BUG_ON(sizeof(state_bo->name) != sizeof(obj->name));
+
+       memcpy(state_bo->name, obj->name, sizeof(state_bo->name));
+
        if (full) {
                void *ptr;
 

diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h
index fefcf2c..4d935fe 100644 (file)
--- a/drivers/gpu/drm/msm/msm_gpu.h
+++ b/drivers/gpu/drm/msm/msm_gpu.h
@@ -489,6 +489,7 @@ struct msm_gpu_state_bo {
        size_t size;
        void *data;
        bool encoded;
+       char name[32];
 };
 
 struct msm_gpu_state {