static int omap_crtc_atomic_set_property(struct drm_crtc *crtc, struct drm_crtc_state *state, struct drm_property *property, uint64_t val) { struct drm_plane_state *plane_state; struct drm_plane *plane = crtc->primary; /* * Delegate property set to the primary plane. Get the plane state and * set the property directly. */ plane_state = drm_atomic_get_plane_state(state->state, plane); if (!plane_state) return -EINVAL; return drm_atomic_plane_set_property(plane, plane_state, property, val); }
/** * intel_atomic_setup_scalers() - setup scalers for crtc per staged requests * @dev: DRM device * @crtc: intel crtc * @crtc_state: incoming crtc_state to validate and setup scalers * * This function sets up scalers based on staged scaling requests for * a @crtc and its planes. It is called from crtc level check path. If request * is a supportable request, it attaches scalers to requested planes and crtc. * * This function takes into account the current scaler(s) in use by any planes * not being part of this atomic state * * Returns: * 0 - scalers were setup succesfully * error code - otherwise */ int intel_atomic_setup_scalers(struct drm_device *dev, struct intel_crtc *intel_crtc, struct intel_crtc_state *crtc_state) { struct drm_plane *plane = NULL; struct intel_plane *intel_plane; struct intel_plane_state *plane_state = NULL; struct intel_crtc_scaler_state *scaler_state = &crtc_state->scaler_state; struct drm_atomic_state *drm_state = crtc_state->base.state; int num_scalers_need; int i, j; num_scalers_need = hweight32(scaler_state->scaler_users); /* * High level flow: * - staged scaler requests are already in scaler_state->scaler_users * - check whether staged scaling requests can be supported * - add planes using scalers that aren't in current transaction * - assign scalers to requested users * - as part of plane commit, scalers will be committed * (i.e., either attached or detached) to respective planes in hw * - as part of crtc_commit, scaler will be either attached or detached * to crtc in hw */ /* fail if required scalers > available scalers */ if (num_scalers_need > intel_crtc->num_scalers){ DRM_DEBUG_KMS("Too many scaling requests %d > %d\n", num_scalers_need, intel_crtc->num_scalers); return -EINVAL; } /* walkthrough scaler_users bits and start assigning scalers */ for (i = 0; i < sizeof(scaler_state->scaler_users) * 8; i++) { int *scaler_id; const char *name; int idx; /* skip if scaler not required */ if (!(scaler_state->scaler_users & (1 << i))) continue; if (i == SKL_CRTC_INDEX) { name = "CRTC"; idx = intel_crtc->base.base.id; /* panel fitter case: assign as a crtc scaler */ scaler_id = &scaler_state->scaler_id; } else { name = "PLANE"; /* plane scaler case: assign as a plane scaler */ /* find the plane that set the bit as scaler_user */ plane = drm_state->planes[i]; /* * to enable/disable hq mode, add planes that are using scaler * into this transaction */ if (!plane) { struct drm_plane_state *state; plane = drm_plane_from_index(dev, i); state = drm_atomic_get_plane_state(drm_state, plane); if (IS_ERR(state)) { DRM_DEBUG_KMS("Failed to add [PLANE:%d] to drm_state\n", plane->base.id); return PTR_ERR(state); } /* * the plane is added after plane checks are run, * but since this plane is unchanged just do the * minimum required validation. */ crtc_state->base.planes_changed = true; } intel_plane = to_intel_plane(plane); idx = plane->base.id; /* plane on different crtc cannot be a scaler user of this crtc */ if (WARN_ON(intel_plane->pipe != intel_crtc->pipe)) { continue; } plane_state = to_intel_plane_state(drm_state->plane_states[i]); scaler_id = &plane_state->scaler_id; } if (*scaler_id < 0) { /* find a free scaler */ for (j = 0; j < intel_crtc->num_scalers; j++) { if (!scaler_state->scalers[j].in_use) { scaler_state->scalers[j].in_use = 1; *scaler_id = j; DRM_DEBUG_KMS("Attached scaler id %u.%u to %s:%d\n", intel_crtc->pipe, *scaler_id, name, idx); break; } } } if (WARN_ON(*scaler_id < 0)) { DRM_DEBUG_KMS("Cannot find scaler for %s:%d\n", name, idx); continue; } /* set scaler mode */ if (num_scalers_need == 1 && intel_crtc->pipe != PIPE_C) { /* * when only 1 scaler is in use on either pipe A or B, * scaler 0 operates in high quality (HQ) mode. * In this case use scaler 0 to take advantage of HQ mode */ *scaler_id = 0; scaler_state->scalers[0].in_use = 1; scaler_state->scalers[0].mode = PS_SCALER_MODE_HQ; scaler_state->scalers[1].in_use = 0; } else { scaler_state->scalers[*scaler_id].mode = PS_SCALER_MODE_DYN; } } return 0; }