drm/msm: Add VM logging for VM_BIND updates

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When userspace opts in to VM_BIND, the submit no longer holds references
keeping the VMA alive.  This makes it difficult to distinguish between
UMD/KMD/app bugs.  So add a debug option for logging the most recent VM
updates and capturing these in GPU devcoredumps.

The submitqueue id is also captured, a value of zero means the operation
did not go via a submitqueue (ie. comes from msm_gem_vm_close() tearing
down the remaining mappings when the device file is closed.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
Tested-by: Antonino Maniscalco <antomani103@gmail.com>
Reviewed-by: Antonino Maniscalco <antomani103@gmail.com>
Patchwork: https://patchwork.freedesktop.org/patch/661518/

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Rob Clark 2025-06-29 13:13:19 -07:00 • committed by Rob Clark

parent 2e6a8a1fe2

commit 9edc52967c

5 changed files with 202 additions and 13 deletions

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11

drivers/gpu/drm/msm/adreno/adreno_gpu.c

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24

drivers/gpu/drm/msm/msm_gem.h

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128

drivers/gpu/drm/msm/msm_gem_vma.c

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52

drivers/gpu/drm/msm/msm_gpu.c

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4

drivers/gpu/drm/msm/msm_gpu.h

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