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drm/amd/display: Add writeback enable field (wb_enabled)

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[WHAT]
Add a new field to keep track whether a crtc is previously
writeback-enabled.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Hung 2023-12-01 06:25:36 -07:00 • committed by Alex Deucher
parent ab37b88ed9
commit f872e2f5f0
2 changed files with 9 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h
View file

@ -418,6 +418,7 @@ struct amdgpu_crtc {
struct drm_pending_vblank_event *event;
bool wb_pending;
bool wb_enabled;
struct drm_writeback_connector *wb_conn;
};

8
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View file

@ -8693,9 +8693,13 @@ static void amdgpu_dm_commit_streams(struct drm_atomic_state *state,
if (acrtc)
old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
if (!acrtc->wb_enabled)
continue;
dm_old_crtc_state = to_dm_crtc_state(old_crtc_state);
dm_clear_writeback(dm, dm_old_crtc_state);
acrtc->wb_enabled = false;
}
for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
@ -9273,9 +9277,13 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
if (acrtc)
new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
if (acrtc->wb_enabled)
continue;
dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
dm_set_writeback(dm, dm_new_crtc_state, connector, new_con_state);
acrtc->wb_enabled = true;
}
/* Update audio instances for each connector. */