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drm/atomic: Extract needs_modeset function

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We use the same check already in the atomic core, so might as well
make this official. And it's also reused in e.g. i915.

Motivated by Maarten's idea to extract a connector_changed state out
of mode_changed.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-By: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
This commit is contained in:
Daniel Vetter 2015-06-18 09:58:55 +02:00
parent 30c4cf3b53
commit 2465ff6217
3 changed files with 12 additions and 13 deletions
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3
drivers/gpu/drm/drm_atomic.c
View File

@ -1216,8 +1216,7 @@ int drm_atomic_check_only(struct drm_atomic_state *state)
if (!state->allow_modeset) {
for_each_crtc_in_state(state, crtc, crtc_state, i) {
if (crtc_state->mode_changed ||
crtc_state->active_changed) {
if (drm_atomic_crtc_needs_modeset(crtc_state)) {
DRM_DEBUG_ATOMIC("[CRTC:%d] requires full modeset\n",
crtc->base.id);
return -EINVAL;

16
drivers/gpu/drm/drm_atomic_helper.c
View File

@ -331,12 +331,6 @@ mode_fixup(struct drm_atomic_state *state)
return 0;
}
static bool
needs_modeset(struct drm_crtc_state *state)
{
return state->mode_changed || state->active_changed;
}
/**
* drm_atomic_helper_check_modeset - validate state object for modeset changes
* @dev: DRM device
@ -414,7 +408,7 @@ drm_atomic_helper_check_modeset(struct drm_device *dev,
crtc_state->active_changed = true;
}
if (!needs_modeset(crtc_state))
if (!drm_atomic_crtc_needs_modeset(crtc_state))
continue;
DRM_DEBUG_ATOMIC("[CRTC:%d] needs all connectors, enable: %c, active: %c\n",
@ -564,7 +558,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
old_crtc_state = old_state->crtc_states[drm_crtc_index(old_conn_state->crtc)];
if (!old_crtc_state->active ||
!needs_modeset(old_conn_state->crtc->state))
!drm_atomic_crtc_needs_modeset(old_conn_state->crtc->state))
continue;
encoder = old_conn_state->best_encoder;
@ -601,7 +595,7 @@ disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state)
const struct drm_crtc_helper_funcs *funcs;
/* Shut down everything that needs a full modeset. */
if (!needs_modeset(crtc->state))
if (!drm_atomic_crtc_needs_modeset(crtc->state))
continue;
if (!old_crtc_state->active)
@ -792,7 +786,7 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
const struct drm_crtc_helper_funcs *funcs;
/* Need to filter out CRTCs where only planes change. */
if (!needs_modeset(crtc->state))
if (!drm_atomic_crtc_needs_modeset(crtc->state))
continue;
if (!crtc->state->active)
@ -819,7 +813,7 @@ void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev,
continue;
if (!connector->state->crtc->state->active ||
!needs_modeset(connector->state->crtc->state))
!drm_atomic_crtc_needs_modeset(connector->state->crtc->state))
continue;
encoder = connector->state->best_encoder;

6
include/drm/drm_atomic.h
View File

@ -163,5 +163,11 @@ int __must_check drm_atomic_async_commit(struct drm_atomic_state *state);
(plane_state) = (state)->plane_states[__i], 1); \
(__i)++) \
if (plane_state)
static inline bool
drm_atomic_crtc_needs_modeset(struct drm_crtc_state *state)
{
return state->mode_changed || state->active_changed;
}
#endif /* DRM_ATOMIC_H_ */