/* * Copyright © 2015 Intel Corporation * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ /** * DOC: atomic modeset support * * The functions here implement the state management and hardware programming * dispatch required by the atomic modeset infrastructure. * See intel_atomic_plane.c for the plane-specific atomic functionality. */ #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_fourcc.h> #include "i915_drv.h" #include "i915_reg.h" #include "intel_atomic.h" #include "intel_cdclk.h" #include "intel_display_types.h" #include "intel_global_state.h" #include "intel_hdcp.h" #include "intel_psr.h" #include "intel_fb.h" #include "skl_universal_plane.h" /** * intel_digital_connector_atomic_get_property - hook for connector->atomic_get_property. * @connector: Connector to get the property for. * @state: Connector state to retrieve the property from. * @property: Property to retrieve. * @val: Return value for the property. * * Returns the atomic property value for a digital connector. */ int intel_digital_connector_atomic_get_property(struct drm_connector *connector, const struct drm_connector_state *state, struct drm_property *property, u64 *val) { struct drm_device *dev = connector->dev; struct drm_i915_private *dev_priv = to_i915(dev); struct intel_digital_connector_state *intel_conn_state = to_intel_digital_connector_state(state); if (property == dev_priv->display.properties.force_audio) *val = intel_conn_state->force_audio; else if (property == dev_priv->display.properties.broadcast_rgb) *val = intel_conn_state->broadcast_rgb; else { drm_dbg_atomic(&dev_priv->drm, "Unknown property [PROP:%d:%s]\n", property->base.id, property->name); return -EINVAL; } return 0; } /** * intel_digital_connector_atomic_set_property - hook for connector->atomic_set_property. * @connector: Connector to set the property for. * @state: Connector state to set the property on. * @property: Property to set. * @val: New value for the property. * * Sets the atomic property value for a digital connector. */ int intel_digital_connector_atomic_set_property(struct drm_connector *connector, struct drm_connector_state *state, struct drm_property *property, u64 val) { struct drm_device *dev = connector->dev; struct drm_i915_private *dev_priv = to_i915(dev); struct intel_digital_connector_state *intel_conn_state = to_intel_digital_connector_state(state); if (property == dev_priv->display.properties.force_audio) { intel_conn_state->force_audio = val; return 0; } if (property == dev_priv->display.properties.broadcast_rgb) { intel_conn_state->broadcast_rgb = val; return 0; } drm_dbg_atomic(&dev_priv->drm, "Unknown property [PROP:%d:%s]\n", property->base.id, property->name); return -EINVAL; } int intel_digital_connector_atomic_check(struct drm_connector *conn, struct drm_atomic_state *state) { struct drm_connector_state *new_state = drm_atomic_get_new_connector_state(state, conn); struct intel_digital_connector_state *new_conn_state = to_intel_digital_connector_state(new_state); struct drm_connector_state *old_state = drm_atomic_get_old_connector_state(state, conn); struct intel_digital_connector_state *old_conn_state = to_intel_digital_connector_state(old_state); struct drm_crtc_state *crtc_state; intel_hdcp_atomic_check(conn, old_state, new_state); if (!new_state->crtc) return 0; crtc_state = drm_atomic_get_new_crtc_state(state, new_state->crtc); /* * These properties are handled by fastset, and might not end * up in a modeset. */ if (new_conn_state->force_audio != old_conn_state->force_audio || new_conn_state->broadcast_rgb != old_conn_state->broadcast_rgb || new_conn_state->base.colorspace != old_conn_state->base.colorspace || new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio || new_conn_state->base.content_type != old_conn_state->base.content_type || new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode || new_conn_state->base.privacy_screen_sw_state != old_conn_state->base.privacy_screen_sw_state || !drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) crtc_state->mode_changed = true; return 0; } /** * intel_digital_connector_duplicate_state - duplicate connector state * @connector: digital connector * * Allocates and returns a copy of the connector state (both common and * digital connector specific) for the specified connector. * * Returns: The newly allocated connector state, or NULL on failure. */ struct drm_connector_state * intel_digital_connector_duplicate_state(struct drm_connector *connector) { struct intel_digital_connector_state *state; state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL); if (!state) return NULL; __drm_atomic_helper_connector_duplicate_state(connector, &state->base); return &state->base; } /** * intel_connector_needs_modeset - check if connector needs a modeset * @state: the atomic state corresponding to this modeset * @connector: the connector */ bool intel_connector_needs_modeset(struct intel_atomic_state *state, struct drm_connector *connector) { const struct drm_connector_state *old_conn_state, *new_conn_state; old_conn_state = drm_atomic_get_old_connector_state(&state->base, connector); new_conn_state = drm_atomic_get_new_connector_state(&state->base, connector); return old_conn_state->crtc != new_conn_state->crtc || (new_conn_state->crtc && drm_atomic_crtc_needs_modeset(drm_atomic_get_new_crtc_state(&state->base, new_conn_state->crtc))); } /** * intel_any_crtc_needs_modeset - check if any CRTC needs a modeset * @state: the atomic state corresponding to this modeset * * Returns true if any CRTC in @state needs a modeset. */ bool intel_any_crtc_needs_modeset(struct intel_atomic_state *state) { struct intel_crtc *crtc; struct intel_crtc_state *crtc_state; int i; for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { if (intel_crtc_needs_modeset(crtc_state)) return true; } return false; } struct intel_digital_connector_state * intel_atomic_get_digital_connector_state(struct intel_atomic_state *state, struct intel_connector *connector) { struct drm_connector_state *conn_state; conn_state = drm_atomic_get_connector_state(&state->base, &connector->base); if (IS_ERR(conn_state)) return ERR_CAST(conn_state); return to_intel_digital_connector_state(conn_state); } /** * intel_crtc_duplicate_state - duplicate crtc state * @crtc: drm crtc * * Allocates and returns a copy of the crtc state (both common and * Intel-specific) for the specified crtc. * * Returns: The newly allocated crtc state, or NULL on failure. */ struct drm_crtc_state * intel_crtc_duplicate_state(struct drm_crtc *crtc) { const struct intel_crtc_state *old_crtc_state = to_intel_crtc_state(crtc->state); struct intel_crtc_state *crtc_state; crtc_state = kmemdup(old_crtc_state, sizeof(*crtc_state), GFP_KERNEL); if (!crtc_state) return NULL; __drm_atomic_helper_crtc_duplicate_state(crtc, &crtc_state->uapi); /* copy color blobs */ if (crtc_state->hw.degamma_lut) drm_property_blob_get(crtc_state->hw.degamma_lut); if (crtc_state->hw.ctm) drm_property_blob_get(crtc_state->hw.ctm); if (crtc_state->hw.gamma_lut) drm_property_blob_get(crtc_state->hw.gamma_lut); if (crtc_state->pre_csc_lut) drm_property_blob_get(crtc_state->pre_csc_lut); if (crtc_state->post_csc_lut) drm_property_blob_get(crtc_state->post_csc_lut); crtc_state->update_pipe = false; crtc_state->update_m_n = false; crtc_state->update_lrr = false; crtc_state->disable_lp_wm = false; crtc_state->disable_cxsr = false; crtc_state->update_wm_pre = false; crtc_state->update_wm_post = false; crtc_state->fifo_changed = false; crtc_state->preload_luts = false; crtc_state->wm.need_postvbl_update = false; crtc_state->do_async_flip = false; crtc_state->fb_bits = 0; crtc_state->update_planes = 0; crtc_state->dsb = NULL; return &crtc_state->uapi; } static void intel_crtc_put_color_blobs(struct intel_crtc_state *crtc_state) { drm_property_blob_put(crtc_state->hw.degamma_lut); drm_property_blob_put(crtc_state->hw.gamma_lut); drm_property_blob_put(crtc_state->hw.ctm); drm_property_blob_put(crtc_state->pre_csc_lut); drm_property_blob_put(crtc_state->post_csc_lut); } void intel_crtc_free_hw_state(struct intel_crtc_state *crtc_state) { intel_crtc_put_color_blobs(crtc_state); } /** * intel_crtc_destroy_state - destroy crtc state * @crtc: drm crtc * @state: the state to destroy * * Destroys the crtc state (both common and Intel-specific) for the * specified crtc. */ void intel_crtc_destroy_state(struct drm_crtc *crtc, struct drm_crtc_state *state) { struct intel_crtc_state *crtc_state = to_intel_crtc_state(state); drm_WARN_ON(crtc->dev, crtc_state->dsb); __drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi); intel_crtc_free_hw_state(crtc_state); kfree(crtc_state); } struct drm_atomic_state * intel_atomic_state_alloc(struct drm_device *dev) { struct intel_atomic_state *state = kzalloc(sizeof(*state), GFP_KERNEL); if (!state || drm_atomic_state_init(dev, &state->base) < 0) { kfree(state); return NULL; } return &state->base; } void intel_atomic_state_free(struct drm_atomic_state *_state) { struct intel_atomic_state *state = to_intel_atomic_state(_state); drm_atomic_state_default_release(&state->base); kfree(state->global_objs); i915_sw_fence_fini(&state->commit_ready); kfree(state); } void intel_atomic_state_clear(struct drm_atomic_state *s) { struct intel_atomic_state *state = to_intel_atomic_state(s); drm_atomic_state_default_clear(&state->base); intel_atomic_clear_global_state(state); /* state->internal not reset on purpose */ state->dpll_set = state->modeset = false; } struct intel_crtc_state * intel_atomic_get_crtc_state(struct drm_atomic_state *state, struct intel_crtc *crtc) { struct drm_crtc_state *crtc_state; crtc_state = drm_atomic_get_crtc_state(state, &crtc->base); if (IS_ERR(crtc_state)) return ERR_CAST(crtc_state); return to_intel_crtc_state(crtc_state); }