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(parent: 563c9d4) | patch
drm/mediatek: Detect CMDQ execution timeout
authorChun-Kuang Hu <chunkuang.hu@kernel.org>
Wed, 27 Oct 2021 02:18:54 +0000 (10:18 +0800)
committerChun-Kuang Hu <chunkuang.hu@kernel.org>
Wed, 17 Nov 2021 23:28:37 +0000 (07:28 +0800)
commiteaf80126aba6fd1754837eec91e4c8bbd58ae52e
tree9ffd9ffb434cd8c0c9326aeeff5eeee32631d258tree | snapshot
parent563c9d4a5b117552150efbecbaf0877947e98a32commit | diff
drm/mediatek: Detect CMDQ execution timeout

CMDQ is used to update display register in vblank period, so
it should be execute in next 2 vblank. One vblank interrupt
before send message (occasionally) and one vblank interrupt
after cmdq done. If it fail to execute in next 3 vblank,
tiemout happen.

Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Signed-off-by: jason-jh.lin <jason-jh.lin@mediatek.com>
drivers/gpu/drm/mediatek/mtk_drm_crtc.c diff | blob | history
Domain: System / Kernel;