Stop relying on a per crtc_state last_vblank_count, we know in advance
how many there can be. Also stop re-using new_crtc_state->enable,
we can now simply set a bitmask with crtc_crtc_mask.
---
drivers/gpu/drm/drm_atomic_helper.c | 29 +++++++++++++++--------------
include/drm/drm_crtc.h | 5 -----
2 files changed, 15 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index d19563651e07..ccf0bed9bf4a 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1110,19 +1110,20 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
struct drm_crtc *crtc;
struct drm_crtc_state *old_crtc_state;
int i, ret;
+ unsigned crtc_mask = 0;
+ unsigned last_vblank_count[dev->mode_config.num_crtc];
+
+ /*
+ * Legacy cursor ioctls are completely unsynced, and userspace
+ * relies on that (by doing tons of cursor updates).
+ */
+ if (old_state->legacy_cursor_update)
+ return;
for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
- /* No one cares about the old state, so abuse it for tracking
- * and store whether we hold a vblank reference (and should do a
- * vblank wait) in the ->enable boolean. */
- old_crtc_state->enable = false;
-
- if (!crtc->state->active)
- continue;
+ struct drm_crtc_state *new_crtc_state = crtc->state;
- /* Legacy cursor ioctls are completely unsynced, and userspace
- * relies on that (by doing tons of cursor updates). */
- if (old_state->legacy_cursor_update)
+ if (!new_crtc_state->active)
continue;
if (!drm_atomic_helper_framebuffer_changed(dev,
@@ -1133,16 +1134,16 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
if (ret != 0)
continue;
- old_crtc_state->enable = true;
- old_crtc_state->last_vblank_count = drm_crtc_vblank_count(crtc);
+ crtc_mask |= drm_crtc_mask(crtc);
+ last_vblank_count[i] = drm_crtc_vblank_count(crtc);
}
for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) {
- if (!old_crtc_state->enable)
+ if (!(crtc_mask & drm_crtc_mask(crtc)))
continue;
ret = wait_event_timeout(dev->vblank[i].queue,
- old_crtc_state->last_vblank_count !=
+ last_vblank_count[i] !=
drm_crtc_vblank_count(crtc),
msecs_to_jiffies(50));
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 946672f97e1e..e03d194be086 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -93,8 +93,6 @@ struct drm_plane_helper_funcs;
* @plane_mask: bitmask of (1 << drm_plane_index(plane)) of attached planes
* @connector_mask: bitmask of (1 << drm_connector_index(connector)) of attached connectors
* @encoder_mask: bitmask of (1 << drm_encoder_index(encoder)) of attached encoders
- * @last_vblank_count: for helpers and drivers to capture the vblank of the
- * update to ensure framebuffer cleanup isn't done too early
* @adjusted_mode: for use by helpers and drivers to compute adjusted mode timings
* @mode: current mode timings
* @mode_blob: &drm_property_blob for @mode
@@ -140,9 +138,6 @@ struct drm_crtc_state {
u32 connector_mask;
u32 encoder_mask;
- /* last_vblank_count: for vblank waits before cleanup */
- u32 last_vblank_count;
-
/* adjusted_mode: for use by helpers and drivers */
struct drm_display_mode adjusted_mode;
--
2.7.4
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/dri-devel
