Hello,
This series fixes the slow down in performance introduced by "[PATCH v2] drm: Block fb changes for async plane updates" where async update falls back to a sync update, causing igt failures of type:
"CRITICAL: completed 97 cursor updated in a period of 30 flips, we expect to complete approximately 15360 updates, with the threshold set at 7680"
Please read the commit message of "drm: don't block fb changes for async plane updates" to understand how it works.
I tested on the rockchip, on i915 and on vc4 with igt plane_cursor_legacy and kms_cursor_legacy and I didn't see any regressions.
I couldn't test on MSM and AMD because I don't have the hardware I would appreciate if anyone could help me testing those.
v1 link: https://patchwork.kernel.org/cover/10837847/
Thanks! Helen
Changes in v3: - use swap() to swap old and new framebuffers in async_update - get the reference to old_fb and set the worker after vop_plane_atomic_update() - add a FIXME tag for when we have multiple fbs to be released when vblank happens. - update commit message - Add Reviewed-by tags - Add TODO in drm_atomic_helper_async_commit()
Changes in v2: - added reviewed-by tag - update CC stable and Fixes tag - Added reviewed-by tag - updated CC stable and Fixes tag - Change the order of the patch in the series, add this as the last one. - Add documentation - s/ballanced/balanced
Helen Koike (5): drm/rockchip: fix fb references in async update drm/amd: fix fb references in async update drm/msm: fix fb references in async update drm/vc4: fix fb references in async update drm: don't block fb changes for async plane updates
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +- drivers/gpu/drm/drm_atomic_helper.c | 22 ++++---- drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c | 4 ++ drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 51 ++++++++++--------- drivers/gpu/drm/vc4/vc4_plane.c | 2 +- include/drm/drm_modeset_helper_vtables.h | 5 ++ 6 files changed, 49 insertions(+), 38 deletions(-)