[PATCH v4 16/27] drm/i915: Use drm_atomic_helper_swap_state in intel_atomic_commit.

Maarten Lankhorst
2015-06-01T10:50:32Z

And update crtc->config to point to the new state. There is no point
in swapping only part of the state when the rest of the state
should be untouched.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
---
drivers/gpu/drm/i915/intel_atomic.c | 44 ++++++++++---------------------------
1 file changed, 12 insertions(+), 32 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index 6ab82dc56cea..e93aade0f2dc 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -129,6 +129,8 @@ int intel_atomic_commit(struct drm_device *dev,
struct drm_atomic_state *state,
bool async)
{
+ struct drm_crtc_state *crtc_state;
+ struct drm_crtc *crtc;
int ret;
int i;

@@ -142,48 +144,26 @@ int intel_atomic_commit(struct drm_device *dev,
return ret;

/* Point of no return */
+ drm_atomic_helper_swap_state(dev, state);
+
+ for_each_crtc_in_state(state, crtc, crtc_state, i) {
+ to_intel_crtc(crtc)->config = to_intel_crtc_state(crtc->state);
+
+ if (INTEL_INFO(dev)->gen >= 9)
+ skl_detach_scalers(to_intel_crtc(crtc));
+ }

/*
* FIXME: The proper sequence here will eventually be:
*
- * drm_atomic_helper_swap_state(dev, state)
* drm_atomic_helper_commit_modeset_disables(dev, state);
* drm_atomic_helper_commit_planes(dev, state);
* drm_atomic_helper_commit_modeset_enables(dev, state);
- * drm_atomic_helper_wait_for_vblanks(dev, state);
- * drm_atomic_helper_cleanup_planes(dev, state);
- * drm_atomic_state_free(state);
*
- * once we have full atomic modeset. For now, just manually update
- * plane states to avoid clobbering good states with dummy states
- * while nuclear pageflipping.
+ * once we have full atomic modeset.
*/
- for (i = 0; i < dev->mode_config.num_total_plane; i++) {
- struct drm_plane *plane = state->planes[i];
-
- if (!plane)
- continue;
-
- plane->state->state = state;
- swap(state->plane_states[i], plane->state);
- plane->state->state = NULL;
- }
-
- /* swap crtc_scaler_state */
- for (i = 0; i < dev->mode_config.num_crtc; i++) {
- struct drm_crtc *crtc = state->crtcs[i];
- if (!crtc) {
- continue;
- }
-
- to_intel_crtc(crtc)->config->scaler_state =
- to_intel_crtc_state(state->crtc_states[i])->scaler_state;
-
- if (INTEL_INFO(dev)->gen >= 9)
- skl_detach_scalers(to_intel_crtc(crtc));
- }
-
drm_atomic_helper_commit_planes(dev, state);
+
drm_atomic_helper_wait_for_vblanks(dev, state);
drm_atomic_helper_cleanup_planes(dev, state);
drm_atomic_state_free(state);