drm/msm: make msm_disp_state transient data struct

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Instead of allocating snapshotting structure at the driver probe time
and later handling concurrent access, actual state, etc, make
msm_disp_state transient struct. Allocate one when snapshotting happens
and free it after coredump data is read by userspace.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Link: https://lore.kernel.org/r/20210427001828.2375555-3-dmitry.baryshkov@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>

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This commit is contained in:

Dmitry Baryshkov 2021-04-27 03:18:26 +03:00 • committed by Rob Clark

parent eb9d6c7ebe

commit 2503003cb2

4 changed files with 37 additions and 77 deletions

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94

drivers/gpu/drm/msm/disp/msm_disp_snapshot.c

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13

drivers/gpu/drm/msm/disp/msm_disp_snapshot.h

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5

drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c

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6

drivers/gpu/drm/msm/msm_kms.h

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