From 0a5c9aad119c4415e14ece4c17cec66aa572e827 Mon Sep 17 00:00:00 2001 From: Hai Li <hali@codeaurora.org> Date: Tue, 28 Apr 2015 19:35:37 -0400 Subject: drm/msm: Use customized function to wait for atomic commit done MDP FLUSH registers could indicate if the previous flush updates has taken effect at vsync boundary. Making use of this H/W feature can catch the vsync that happened between CRTC atomic_flush and *_wait_for_vblanks, to avoid unnecessary wait. This change allows kms CRTCs to use their own *_wait_for_commit_done functions to wait for FLUSH register cleared at vsync, before commit completion. Signed-off-by: Hai Li <hali@codeaurora.org> Signed-off-by: Rob Clark <robdclark@gmail.com> --- drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c') diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c index bbacf9d2b738..206f758f7d64 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c @@ -80,6 +80,12 @@ static void mdp5_complete_commit(struct msm_kms *kms, struct drm_atomic_state *s mdp5_disable(mdp5_kms); } +static void mdp5_wait_for_crtc_commit_done(struct msm_kms *kms, + struct drm_crtc *crtc) +{ + mdp5_crtc_wait_for_commit_done(crtc); +} + static long mdp5_round_pixclk(struct msm_kms *kms, unsigned long rate, struct drm_encoder *encoder) { @@ -141,6 +147,7 @@ static const struct mdp_kms_funcs kms_funcs = { .disable_vblank = mdp5_disable_vblank, .prepare_commit = mdp5_prepare_commit, .complete_commit = mdp5_complete_commit, + .wait_for_crtc_commit_done = mdp5_wait_for_crtc_commit_done, .get_format = mdp_get_format, .round_pixclk = mdp5_round_pixclk, .set_split_display = mdp5_set_split_display, -- cgit v1.2.3