diff options
Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 135 |
1 files changed, 80 insertions, 55 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index ef5f766..3f74193 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -288,8 +288,8 @@ drm_atomic_get_crtc_state(struct drm_atomic_state *state, state->crtcs[index] = crtc; crtc_state->state = state; - DRM_DEBUG_ATOMIC("Added [CRTC:%d] %p state to %p\n", - crtc->base.id, crtc_state, state); + DRM_DEBUG_ATOMIC("Added [CRTC:%d:%s] %p state to %p\n", + crtc->base.id, crtc->name, crtc_state, state); return crtc_state; } @@ -429,11 +429,20 @@ int drm_atomic_crtc_set_property(struct drm_crtc *crtc, } EXPORT_SYMBOL(drm_atomic_crtc_set_property); -/* +/** + * drm_atomic_crtc_get_property - get property value from CRTC state + * @crtc: the drm CRTC to set a property on + * @state: the state object to get the property value from + * @property: the property to set + * @val: return location for the property value + * * This function handles generic/core properties and calls out to * driver's ->atomic_get_property() for driver properties. To ensure * consistent behavior you must call this function rather than the * driver hook directly. + * + * RETURNS: + * Zero on success, error code on failure */ static int drm_atomic_crtc_get_property(struct drm_crtc *crtc, @@ -477,8 +486,8 @@ static int drm_atomic_crtc_check(struct drm_crtc *crtc, */ if (state->active && !state->enable) { - DRM_DEBUG_ATOMIC("[CRTC:%d] active without enabled\n", - crtc->base.id); + DRM_DEBUG_ATOMIC("[CRTC:%d:%s] active without enabled\n", + crtc->base.id, crtc->name); return -EINVAL; } @@ -487,14 +496,30 @@ static int drm_atomic_crtc_check(struct drm_crtc *crtc, * be able to trigger. */ if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && WARN_ON(state->enable && !state->mode_blob)) { - DRM_DEBUG_ATOMIC("[CRTC:%d] enabled without mode blob\n", - crtc->base.id); + DRM_DEBUG_ATOMIC("[CRTC:%d:%s] enabled without mode blob\n", + crtc->base.id, crtc->name); return -EINVAL; } if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && WARN_ON(!state->enable && state->mode_blob)) { - DRM_DEBUG_ATOMIC("[CRTC:%d] disabled with mode blob\n", + DRM_DEBUG_ATOMIC("[CRTC:%d:%s] disabled with mode blob\n", + crtc->base.id, crtc->name); + return -EINVAL; + } + + /* + * Reject event generation for when a CRTC is off and stays off. + * It wouldn't be hard to implement this, but userspace has a track + * record of happily burning through 100% cpu (or worse, crash) when the + * display pipe is suspended. To avoid all that fun just reject updates + * that ask for events since likely that indicates a bug in the + * compositor's drawing loop. This is consistent with the vblank IOCTL + * and legacy page_flip IOCTL which also reject service on a disabled + * pipe. + */ + if (state->event && !state->active && !crtc->state->active) { + DRM_DEBUG_ATOMIC("[CRTC:%d] requesting event but off\n", crtc->base.id); return -EINVAL; } @@ -540,8 +565,8 @@ drm_atomic_get_plane_state(struct drm_atomic_state *state, state->planes[index] = plane; plane_state->state = state; - DRM_DEBUG_ATOMIC("Added [PLANE:%d] %p state to %p\n", - plane->base.id, plane_state, state); + DRM_DEBUG_ATOMIC("Added [PLANE:%d:%s] %p state to %p\n", + plane->base.id, plane->name, plane_state, state); if (plane_state->crtc) { struct drm_crtc_state *crtc_state; @@ -616,11 +641,20 @@ int drm_atomic_plane_set_property(struct drm_plane *plane, } EXPORT_SYMBOL(drm_atomic_plane_set_property); -/* +/** + * drm_atomic_plane_get_property - get property value from plane state + * @plane: the drm plane to set a property on + * @state: the state object to get the property value from + * @property: the property to set + * @val: return location for the property value + * * This function handles generic/core properties and calls out to * driver's ->atomic_get_property() for driver properties. To ensure * consistent behavior you must call this function rather than the * driver hook directly. + * + * RETURNS: + * Zero on success, error code on failure */ static int drm_atomic_plane_get_property(struct drm_plane *plane, @@ -752,8 +786,8 @@ static int drm_atomic_plane_check(struct drm_plane *plane, } if (plane_switching_crtc(state->state, plane, state)) { - DRM_DEBUG_ATOMIC("[PLANE:%d] switching CRTC directly\n", - plane->base.id); + DRM_DEBUG_ATOMIC("[PLANE:%d:%s] switching CRTC directly\n", + plane->base.id, plane->name); return -EINVAL; } @@ -872,11 +906,20 @@ int drm_atomic_connector_set_property(struct drm_connector *connector, } EXPORT_SYMBOL(drm_atomic_connector_set_property); -/* +/** + * drm_atomic_connector_get_property - get property value from connector state + * @connector: the drm connector to set a property on + * @state: the state object to get the property value from + * @property: the property to set + * @val: return location for the property value + * * This function handles generic/core properties and calls out to * driver's ->atomic_get_property() for driver properties. To ensure * consistent behavior you must call this function rather than the * driver hook directly. + * + * RETURNS: + * Zero on success, error code on failure */ static int drm_atomic_connector_get_property(struct drm_connector *connector, @@ -977,8 +1020,8 @@ drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state, } if (crtc) - DRM_DEBUG_ATOMIC("Link plane state %p to [CRTC:%d]\n", - plane_state, crtc->base.id); + DRM_DEBUG_ATOMIC("Link plane state %p to [CRTC:%d:%s]\n", + plane_state, crtc->base.id, crtc->name); else DRM_DEBUG_ATOMIC("Link plane state %p to [NOCRTC]\n", plane_state); @@ -1036,17 +1079,28 @@ drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, { struct drm_crtc_state *crtc_state; + if (conn_state->crtc && conn_state->crtc != crtc) { + crtc_state = drm_atomic_get_existing_crtc_state(conn_state->state, + conn_state->crtc); + + crtc_state->connector_mask &= + ~(1 << drm_connector_index(conn_state->connector)); + } + if (crtc) { crtc_state = drm_atomic_get_crtc_state(conn_state->state, crtc); if (IS_ERR(crtc_state)) return PTR_ERR(crtc_state); + + crtc_state->connector_mask |= + 1 << drm_connector_index(conn_state->connector); } conn_state->crtc = crtc; if (crtc) - DRM_DEBUG_ATOMIC("Link connector state %p to [CRTC:%d]\n", - conn_state, crtc->base.id); + DRM_DEBUG_ATOMIC("Link connector state %p to [CRTC:%d:%s]\n", + conn_state, crtc->base.id, crtc->name); else DRM_DEBUG_ATOMIC("Link connector state %p to [NOCRTC]\n", conn_state); @@ -1085,8 +1139,8 @@ drm_atomic_add_affected_connectors(struct drm_atomic_state *state, if (ret) return ret; - DRM_DEBUG_ATOMIC("Adding all current connectors for [CRTC:%d] to %p\n", - crtc->base.id, state); + DRM_DEBUG_ATOMIC("Adding all current connectors for [CRTC:%d:%s] to %p\n", + crtc->base.id, crtc->name, state); /* * Changed connectors are already in @state, so only need to look at the @@ -1145,35 +1199,6 @@ drm_atomic_add_affected_planes(struct drm_atomic_state *state, EXPORT_SYMBOL(drm_atomic_add_affected_planes); /** - * drm_atomic_connectors_for_crtc - count number of connected outputs - * @state: atomic state - * @crtc: DRM crtc - * - * This function counts all connectors which will be connected to @crtc - * according to @state. Useful to recompute the enable state for @crtc. - */ -int -drm_atomic_connectors_for_crtc(struct drm_atomic_state *state, - struct drm_crtc *crtc) -{ - struct drm_connector *connector; - struct drm_connector_state *conn_state; - - int i, num_connected_connectors = 0; - - for_each_connector_in_state(state, connector, conn_state, i) { - if (conn_state->crtc == crtc) - num_connected_connectors++; - } - - DRM_DEBUG_ATOMIC("State %p has %i connectors for [CRTC:%d]\n", - state, num_connected_connectors, crtc->base.id); - - return num_connected_connectors; -} -EXPORT_SYMBOL(drm_atomic_connectors_for_crtc); - -/** * drm_atomic_legacy_backoff - locking backoff for legacy ioctls * @state: atomic state * @@ -1220,8 +1245,8 @@ int drm_atomic_check_only(struct drm_atomic_state *state) for_each_plane_in_state(state, plane, plane_state, i) { ret = drm_atomic_plane_check(plane, plane_state); if (ret) { - DRM_DEBUG_ATOMIC("[PLANE:%d] atomic core check failed\n", - plane->base.id); + DRM_DEBUG_ATOMIC("[PLANE:%d:%s] atomic core check failed\n", + plane->base.id, plane->name); return ret; } } @@ -1229,8 +1254,8 @@ int drm_atomic_check_only(struct drm_atomic_state *state) for_each_crtc_in_state(state, crtc, crtc_state, i) { ret = drm_atomic_crtc_check(crtc, crtc_state); if (ret) { - DRM_DEBUG_ATOMIC("[CRTC:%d] atomic core check failed\n", - crtc->base.id); + DRM_DEBUG_ATOMIC("[CRTC:%d:%s] atomic core check failed\n", + crtc->base.id, crtc->name); return ret; } } @@ -1241,8 +1266,8 @@ 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 (drm_atomic_crtc_needs_modeset(crtc_state)) { - DRM_DEBUG_ATOMIC("[CRTC:%d] requires full modeset\n", - crtc->base.id); + DRM_DEBUG_ATOMIC("[CRTC:%d:%s] requires full modeset\n", + crtc->base.id, crtc->name); return -EINVAL; } } |
