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1/*2 * Copyright © 2015 Intel Corporation3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice (including the next12 * paragraph) shall be included in all copies or substantial portions of the13 * Software.14 *15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER21 * DEALINGS IN THE SOFTWARE.22 */23 24/**25 * DOC: atomic modeset support26 *27 * The functions here implement the state management and hardware programming28 * dispatch required by the atomic modeset infrastructure.29 * See intel_atomic_plane.c for the plane-specific atomic functionality.30 */31 32#include <drm/display/drm_dp_tunnel.h>33#include <drm/drm_atomic.h>34#include <drm/drm_atomic_helper.h>35#include <drm/drm_fourcc.h>36 37#include "i915_drv.h"38#include "intel_atomic.h"39#include "intel_cdclk.h"40#include "intel_display_types.h"41#include "intel_dp_tunnel.h"42#include "intel_global_state.h"43#include "intel_hdcp.h"44#include "intel_psr.h"45#include "intel_fb.h"46#include "skl_universal_plane.h"47 48/**49 * intel_digital_connector_atomic_get_property - hook for connector->atomic_get_property.50 * @connector: Connector to get the property for.51 * @state: Connector state to retrieve the property from.52 * @property: Property to retrieve.53 * @val: Return value for the property.54 *55 * Returns the atomic property value for a digital connector.56 */57int intel_digital_connector_atomic_get_property(struct drm_connector *connector,58 const struct drm_connector_state *state,59 struct drm_property *property,60 u64 *val)61{62 struct drm_device *dev = connector->dev;63 struct drm_i915_private *dev_priv = to_i915(dev);64 const struct intel_digital_connector_state *intel_conn_state =65 to_intel_digital_connector_state(state);66 67 if (property == dev_priv->display.properties.force_audio)68 *val = intel_conn_state->force_audio;69 else if (property == dev_priv->display.properties.broadcast_rgb)70 *val = intel_conn_state->broadcast_rgb;71 else {72 drm_dbg_atomic(&dev_priv->drm,73 "Unknown property [PROP:%d:%s]\n",74 property->base.id, property->name);75 return -EINVAL;76 }77 78 return 0;79}80 81/**82 * intel_digital_connector_atomic_set_property - hook for connector->atomic_set_property.83 * @connector: Connector to set the property for.84 * @state: Connector state to set the property on.85 * @property: Property to set.86 * @val: New value for the property.87 *88 * Sets the atomic property value for a digital connector.89 */90int intel_digital_connector_atomic_set_property(struct drm_connector *connector,91 struct drm_connector_state *state,92 struct drm_property *property,93 u64 val)94{95 struct drm_device *dev = connector->dev;96 struct drm_i915_private *dev_priv = to_i915(dev);97 struct intel_digital_connector_state *intel_conn_state =98 to_intel_digital_connector_state(state);99 100 if (property == dev_priv->display.properties.force_audio) {101 intel_conn_state->force_audio = val;102 return 0;103 }104 105 if (property == dev_priv->display.properties.broadcast_rgb) {106 intel_conn_state->broadcast_rgb = val;107 return 0;108 }109 110 drm_dbg_atomic(&dev_priv->drm, "Unknown property [PROP:%d:%s]\n",111 property->base.id, property->name);112 return -EINVAL;113}114 115int intel_digital_connector_atomic_check(struct drm_connector *conn,116 struct drm_atomic_state *state)117{118 struct drm_connector_state *new_state =119 drm_atomic_get_new_connector_state(state, conn);120 struct intel_digital_connector_state *new_conn_state =121 to_intel_digital_connector_state(new_state);122 struct drm_connector_state *old_state =123 drm_atomic_get_old_connector_state(state, conn);124 struct intel_digital_connector_state *old_conn_state =125 to_intel_digital_connector_state(old_state);126 struct drm_crtc_state *crtc_state;127 128 intel_hdcp_atomic_check(conn, old_state, new_state);129 130 if (!new_state->crtc)131 return 0;132 133 crtc_state = drm_atomic_get_new_crtc_state(state, new_state->crtc);134 135 /*136 * These properties are handled by fastset, and might not end137 * up in a modeset.138 */139 if (new_conn_state->force_audio != old_conn_state->force_audio ||140 new_conn_state->broadcast_rgb != old_conn_state->broadcast_rgb ||141 new_conn_state->base.colorspace != old_conn_state->base.colorspace ||142 new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio ||143 new_conn_state->base.content_type != old_conn_state->base.content_type ||144 new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode ||145 new_conn_state->base.privacy_screen_sw_state != old_conn_state->base.privacy_screen_sw_state ||146 !drm_connector_atomic_hdr_metadata_equal(old_state, new_state))147 crtc_state->mode_changed = true;148 149 return 0;150}151 152/**153 * intel_digital_connector_duplicate_state - duplicate connector state154 * @connector: digital connector155 *156 * Allocates and returns a copy of the connector state (both common and157 * digital connector specific) for the specified connector.158 *159 * Returns: The newly allocated connector state, or NULL on failure.160 */161struct drm_connector_state *162intel_digital_connector_duplicate_state(struct drm_connector *connector)163{164 struct intel_digital_connector_state *state;165 166 state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL);167 if (!state)168 return NULL;169 170 __drm_atomic_helper_connector_duplicate_state(connector, &state->base);171 return &state->base;172}173 174/**175 * intel_connector_needs_modeset - check if connector needs a modeset176 * @state: the atomic state corresponding to this modeset177 * @connector: the connector178 */179bool180intel_connector_needs_modeset(struct intel_atomic_state *state,181 struct drm_connector *connector)182{183 const struct drm_connector_state *old_conn_state, *new_conn_state;184 185 old_conn_state = drm_atomic_get_old_connector_state(&state->base, connector);186 new_conn_state = drm_atomic_get_new_connector_state(&state->base, connector);187 188 return old_conn_state->crtc != new_conn_state->crtc ||189 (new_conn_state->crtc &&190 drm_atomic_crtc_needs_modeset(drm_atomic_get_new_crtc_state(&state->base,191 new_conn_state->crtc)));192}193 194/**195 * intel_any_crtc_needs_modeset - check if any CRTC needs a modeset196 * @state: the atomic state corresponding to this modeset197 *198 * Returns true if any CRTC in @state needs a modeset.199 */200bool intel_any_crtc_needs_modeset(struct intel_atomic_state *state)201{202 struct intel_crtc *crtc;203 struct intel_crtc_state *crtc_state;204 int i;205 206 for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) {207 if (intel_crtc_needs_modeset(crtc_state))208 return true;209 }210 211 return false;212}213 214struct intel_digital_connector_state *215intel_atomic_get_digital_connector_state(struct intel_atomic_state *state,216 struct intel_connector *connector)217{218 struct drm_connector_state *conn_state;219 220 conn_state = drm_atomic_get_connector_state(&state->base,221 &connector->base);222 if (IS_ERR(conn_state))223 return ERR_CAST(conn_state);224 225 return to_intel_digital_connector_state(conn_state);226}227 228/**229 * intel_crtc_duplicate_state - duplicate crtc state230 * @crtc: drm crtc231 *232 * Allocates and returns a copy of the crtc state (both common and233 * Intel-specific) for the specified crtc.234 *235 * Returns: The newly allocated crtc state, or NULL on failure.236 */237struct drm_crtc_state *238intel_crtc_duplicate_state(struct drm_crtc *crtc)239{240 const struct intel_crtc_state *old_crtc_state = to_intel_crtc_state(crtc->state);241 struct intel_crtc_state *crtc_state;242 243 crtc_state = kmemdup(old_crtc_state, sizeof(*crtc_state), GFP_KERNEL);244 if (!crtc_state)245 return NULL;246 247 __drm_atomic_helper_crtc_duplicate_state(crtc, &crtc_state->uapi);248 249 /* copy color blobs */250 if (crtc_state->hw.degamma_lut)251 drm_property_blob_get(crtc_state->hw.degamma_lut);252 if (crtc_state->hw.ctm)253 drm_property_blob_get(crtc_state->hw.ctm);254 if (crtc_state->hw.gamma_lut)255 drm_property_blob_get(crtc_state->hw.gamma_lut);256 257 if (crtc_state->pre_csc_lut)258 drm_property_blob_get(crtc_state->pre_csc_lut);259 if (crtc_state->post_csc_lut)260 drm_property_blob_get(crtc_state->post_csc_lut);261 262 if (crtc_state->dp_tunnel_ref.tunnel)263 drm_dp_tunnel_ref_get(crtc_state->dp_tunnel_ref.tunnel,264 &crtc_state->dp_tunnel_ref);265 266 crtc_state->update_pipe = false;267 crtc_state->update_m_n = false;268 crtc_state->update_lrr = false;269 crtc_state->disable_lp_wm = false;270 crtc_state->disable_cxsr = false;271 crtc_state->update_wm_pre = false;272 crtc_state->update_wm_post = false;273 crtc_state->fifo_changed = false;274 crtc_state->preload_luts = false;275 crtc_state->wm.need_postvbl_update = false;276 crtc_state->do_async_flip = false;277 crtc_state->fb_bits = 0;278 crtc_state->update_planes = 0;279 crtc_state->dsb_color_vblank = NULL;280 crtc_state->dsb_color_commit = NULL;281 282 return &crtc_state->uapi;283}284 285static void intel_crtc_put_color_blobs(struct intel_crtc_state *crtc_state)286{287 drm_property_blob_put(crtc_state->hw.degamma_lut);288 drm_property_blob_put(crtc_state->hw.gamma_lut);289 drm_property_blob_put(crtc_state->hw.ctm);290 291 drm_property_blob_put(crtc_state->pre_csc_lut);292 drm_property_blob_put(crtc_state->post_csc_lut);293}294 295void intel_crtc_free_hw_state(struct intel_crtc_state *crtc_state)296{297 intel_crtc_put_color_blobs(crtc_state);298}299 300/**301 * intel_crtc_destroy_state - destroy crtc state302 * @crtc: drm crtc303 * @state: the state to destroy304 *305 * Destroys the crtc state (both common and Intel-specific) for the306 * specified crtc.307 */308void309intel_crtc_destroy_state(struct drm_crtc *crtc,310 struct drm_crtc_state *state)311{312 struct intel_crtc_state *crtc_state = to_intel_crtc_state(state);313 314 drm_WARN_ON(crtc->dev, crtc_state->dsb_color_vblank);315 drm_WARN_ON(crtc->dev, crtc_state->dsb_color_commit);316 317 __drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi);318 intel_crtc_free_hw_state(crtc_state);319 if (crtc_state->dp_tunnel_ref.tunnel)320 drm_dp_tunnel_ref_put(&crtc_state->dp_tunnel_ref);321 kfree(crtc_state);322}323 324struct drm_atomic_state *325intel_atomic_state_alloc(struct drm_device *dev)326{327 struct intel_atomic_state *state = kzalloc(sizeof(*state), GFP_KERNEL);328 329 if (!state || drm_atomic_state_init(dev, &state->base) < 0) {330 kfree(state);331 return NULL;332 }333 334 return &state->base;335}336 337void intel_atomic_state_free(struct drm_atomic_state *_state)338{339 struct intel_atomic_state *state = to_intel_atomic_state(_state);340 341 drm_atomic_state_default_release(&state->base);342 kfree(state->global_objs);343 kfree(state);344}345 346void intel_atomic_state_clear(struct drm_atomic_state *s)347{348 struct intel_atomic_state *state = to_intel_atomic_state(s);349 350 drm_atomic_state_default_clear(&state->base);351 intel_atomic_clear_global_state(state);352 353 /* state->internal not reset on purpose */354 355 state->dpll_set = state->modeset = false;356 357 intel_dp_tunnel_atomic_cleanup_inherited_state(state);358}359 360struct intel_crtc_state *361intel_atomic_get_crtc_state(struct drm_atomic_state *state,362 struct intel_crtc *crtc)363{364 struct drm_crtc_state *crtc_state;365 crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);366 if (IS_ERR(crtc_state))367 return ERR_CAST(crtc_state);368 369 return to_intel_crtc_state(crtc_state);370}371