drm/msm: Add _NO_SHARE flag

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Buffers that are not shared between contexts can share a single resv
object.  This way drm_gpuvm will not track them as external objects, and
submit-time validating overhead will be O(1) for all N non-shared BOs,
instead of O(n).

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/661497/

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

parent 6a4d287a1a

commit b58e12a66e

4 changed files with 51 additions and 0 deletions

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1

drivers/gpu/drm/msm/msm_drv.h

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21

drivers/gpu/drm/msm/msm_gem.c

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15

drivers/gpu/drm/msm/msm_gem_prime.c

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14

include/uapi/drm/msm_drm.h

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