diff options
| author | Leo (Sunpeng) Li <sunpeng.li@amd.com> | 2017-11-10 16:12:08 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-12-06 12:48:11 -0500 |
| commit | 27b3f4fc91e1df74aa15f669c9b032d73dee2ef8 (patch) | |
| tree | e2a2038612e973e8072b605eb4fb4e01d8929108 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 000b59ea9f8360a3e82efe1f4adef4d215ba18c8 (diff) | |
| download | talos-op-linux-27b3f4fc91e1df74aa15f669c9b032d73dee2ef8.tar.gz talos-op-linux-27b3f4fc91e1df74aa15f669c9b032d73dee2ef8.zip | |
drm/amd/display: Do not program front-end twice
The sequence of front-end > back-end > front-end programming will
program the front-end more than once. Add a mode_changed flag, and use
it to determine whether the front-end should be programmed before, or
after back-end.
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index c12331e63816..533f730ff648 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4009,6 +4009,19 @@ static void amdgpu_dm_commit_planes(struct drm_atomic_state *state, } } +/** + * amdgpu_dm_crtc_copy_transient_flags - copy mirrored flags from DRM to DC + * @crtc_state: the DRM CRTC state + * @stream_state: the DC stream state. + * + * Copy the mirrored transient state flags from DRM, to DC. It is used to bring + * a dc_stream_state's flags in sync with a drm_crtc_state's flags. + */ +static void amdgpu_dm_crtc_copy_transient_flags(struct drm_crtc_state *crtc_state, + struct dc_stream_state *stream_state) +{ + stream_state->mode_changed = crtc_state->mode_changed; +} static int amdgpu_dm_atomic_commit(struct drm_device *dev, struct drm_atomic_state *state, @@ -4079,6 +4092,12 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state) new_crtc_state->active_changed, new_crtc_state->connectors_changed); + /* Copy all transient state flags into dc state */ + if (dm_new_crtc_state->stream) { + amdgpu_dm_crtc_copy_transient_flags(&dm_new_crtc_state->base, + dm_new_crtc_state->stream); + } + /* handles headless hotplug case, updating new_state and * aconnector as needed */ @@ -4563,6 +4582,7 @@ static int dm_update_crtcs_state(struct dc *dc, WARN_ON(dm_new_crtc_state->stream); dm_new_crtc_state->stream = new_stream; + dc_stream_retain(new_stream); DRM_DEBUG_DRIVER("Enabling DRM crtc: %d\n", |
