As dc_crtc_atomic_flush() is blocking due to waiting for shadow load done event, page flip performance could be low when atomic flush for two CRTCs are conducted sequentially by drm_atomic_helper_commit_planes() with a single atomic commit. So, call drmm_crtc_flush_worker_init() from dc_crtc_init() to initialize a flush worker for each CRTC so that atomic flush can run in parallel by drm_atomic_helper_commit_planes() for multiple CRTCs to achieve better page flip performance.
Signed-off-by: Liu Ying <[email protected]> --- drivers/gpu/drm/imx/dc/dc-crtc.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/imx/dc/dc-crtc.c b/drivers/gpu/drm/imx/dc/dc-crtc.c index 31d3a982deaf7a0390937285c9d5d00100323181..fb1049a09296a3ecaad8d1430d818fd6e2f25a54 100644 --- a/drivers/gpu/drm/imx/dc/dc-crtc.c +++ b/drivers/gpu/drm/imx/dc/dc-crtc.c @@ -540,8 +540,15 @@ int dc_crtc_init(struct dc_drm_device *dc_drm, int crtc_index) ret = drm_crtc_init_with_planes(drm, &dc_crtc->base, &dc_primary->base, NULL, &dc_crtc_funcs, NULL); - if (ret) + if (ret) { dev_err(de->dev, "failed to add CRTC: %d\n", ret); + return ret; + } + + ret = drmm_crtc_flush_worker_init(drm, &dc_crtc->base); + if (ret) + dev_err(de->dev, + "failed to initialize flush worker for CRTC: %d\n", ret); return ret; } -- 2.34.1
