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 8d03e30f14c006bdb7d3407c0a7a8b02cbb906d2..a049d5de338adac8a7cd76aea63dc64b1afae0fa 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 3314a137be3b9d722f19b44b90e46af85353c154..e1ee85025b67a35c8721b0ef6d7f7d2f02c4c174 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 fefcf2c8fe6599b6a5391a194e57fccaf3a65e09..4d935fedd2acc7593eb4fad1d71f9f031ea3e4ec 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 {