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drm/atomic: add connectors_changed to separate it from mode_changed, v2

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This can be a separate case from mode_changed, when connectors stay the
same but only the mode is different. Drivers may choose to implement specific
optimizations to prevent a full modeset for this case.

Changes since v1:
- Update kerneldocs slightly.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Maarten Lankhorst
2015-07-21 13:28:57 +02:00
committed by Daniel Vetter
parent 90a21700ed
commit fc596660dd
4 changed files with 38 additions and 14 deletions
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3
include/drm/drm_atomic.h
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@@ -166,7 +166,8 @@ int __must_check drm_atomic_async_commit(struct drm_atomic_state *state);
static inline bool
drm_atomic_crtc_needs_modeset(struct drm_crtc_state *state)
{
return state->mode_changed || state->active_changed;
return state->mode_changed || state->active_changed ||
state->connectors_changed;
}

8
include/drm/drm_crtc.h
View File

@@ -255,12 +255,13 @@ struct drm_atomic_state;
* @crtc: backpointer to the CRTC
* @enable: whether the CRTC should be enabled, gates all other state
* @active: whether the CRTC is actively displaying (used for DPMS)
* @mode_changed: for use by helpers and drivers when computing state updates
* @active_changed: for use by helpers and drivers when computing state updates
* @planes_changed: planes on this crtc are updated
* @mode_changed: crtc_state->mode or crtc_state->enable has been changed
* @active_changed: crtc_state->active has been toggled.
* @connectors_changed: connectors to this crtc have been updated
* @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
* @last_vblank_count: for helpers and drivers to capture the vblank of the
* update to ensure framebuffer cleanup isn't done too early
* @planes_changed: for use by helpers and drivers when computing state updates
* @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
* @mode: current mode timings
* @event: optional pointer to a DRM event to signal upon completion of the
@@ -283,6 +284,7 @@ struct drm_crtc_state {
bool planes_changed : 1;
bool mode_changed : 1;
bool active_changed : 1;
bool connectors_changed : 1;
/* attached planes bitmask:
* WARNING: transitional helpers do not maintain plane_mask so