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| author | Dave Airlie <airlied@redhat.com> | 2017-06-16 13:58:27 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2017-06-16 13:58:27 +1000 |
| commit | 925344ccc91d7a7fd84cab2dece1c34bbd86fd8c (patch) | |
| tree | bd4110dc5a3b70a5674b9d6d5340cc1889f5d6e8 /drivers/gpu/drm/drm_atomic_helper.c | |
| parent | a6821698918a579e7219d706092e83f367f01ba2 (diff) | |
| parent | 32c1431eea4881a6b17bd7c639315010aeefa452 (diff) | |
| download | lwn-925344ccc91d7a7fd84cab2dece1c34bbd86fd8c.tar.gz lwn-925344ccc91d7a7fd84cab2dece1c34bbd86fd8c.zip | |
BackMerge tag 'v4.12-rc5' into drm-next
Linux 4.12-rc5 for nouveau fixes
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 93b0221d5d0f..86d3093c6c9b 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -574,6 +574,8 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, bool has_connectors = !!new_crtc_state->connector_mask; + WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); + if (!drm_mode_equal(&old_crtc_state->mode, &new_crtc_state->mode)) { DRM_DEBUG_ATOMIC("[CRTC:%d:%s] mode changed\n", crtc->base.id, crtc->name); @@ -617,6 +619,8 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, for_each_oldnew_connector_in_state(state, connector, old_connector_state, new_connector_state, i) { const struct drm_connector_helper_funcs *funcs = connector->helper_private; + WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); + /* * This only sets crtc->connectors_changed for routing changes, * drivers must set crtc->connectors_changed themselves when @@ -720,6 +724,8 @@ drm_atomic_helper_check_planes(struct drm_device *dev, for_each_oldnew_plane_in_state(state, plane, old_plane_state, new_plane_state, i) { const struct drm_plane_helper_funcs *funcs; + WARN_ON(!drm_modeset_is_locked(&plane->mutex)); + funcs = plane->helper_private; drm_atomic_helper_plane_changed(state, old_plane_state, new_plane_state, plane); @@ -2738,7 +2744,12 @@ int drm_atomic_helper_resume(struct drm_device *dev, drm_modeset_acquire_init(&ctx, 0); while (1) { + err = drm_modeset_lock_all_ctx(dev, &ctx); + if (err) + goto out; + err = drm_atomic_helper_commit_duplicated_state(state, &ctx); +out: if (err != -EDEADLK) break; |