1 /* 2 * Copyright © 2015 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 /** 25 * DOC: atomic modeset support 26 * 27 * The functions here implement the state management and hardware programming 28 * dispatch required by the atomic modeset infrastructure. 29 * See intel_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 #include <drm/drm_print.h> 37 38 #include "intel_atomic.h" 39 #include "intel_cdclk.h" 40 #include "intel_display_core.h" 41 #include "intel_display_types.h" 42 #include "intel_dp_tunnel.h" 43 #include "intel_fb.h" 44 #include "intel_global_state.h" 45 #include "intel_hdcp.h" 46 #include "intel_psr.h" 47 #include "skl_universal_plane.h" 48 49 /** 50 * intel_digital_connector_atomic_get_property - hook for connector->atomic_get_property. 51 * @connector: Connector to get the property for. 52 * @state: Connector state to retrieve the property from. 53 * @property: Property to retrieve. 54 * @val: Return value for the property. 55 * 56 * Returns the atomic property value for a digital connector. 57 */ 58 int intel_digital_connector_atomic_get_property(struct drm_connector *connector, 59 const struct drm_connector_state *state, 60 struct drm_property *property, 61 u64 *val) 62 { 63 struct intel_display *display = to_intel_display(connector->dev); 64 const struct intel_digital_connector_state *intel_conn_state = 65 to_intel_digital_connector_state(state); 66 67 if (property == display->properties.force_audio) 68 *val = intel_conn_state->force_audio; 69 else if (property == display->properties.broadcast_rgb) 70 *val = intel_conn_state->broadcast_rgb; 71 else { 72 drm_dbg_atomic(display->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 */ 90 int 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 intel_display *display = to_intel_display(connector->dev); 96 struct intel_digital_connector_state *intel_conn_state = 97 to_intel_digital_connector_state(state); 98 99 if (property == display->properties.force_audio) { 100 intel_conn_state->force_audio = val; 101 return 0; 102 } 103 104 if (property == display->properties.broadcast_rgb) { 105 intel_conn_state->broadcast_rgb = val; 106 return 0; 107 } 108 109 drm_dbg_atomic(display->drm, "Unknown property [PROP:%d:%s]\n", 110 property->base.id, property->name); 111 return -EINVAL; 112 } 113 114 int intel_digital_connector_atomic_check(struct drm_connector *conn, 115 struct drm_atomic_commit *state) 116 { 117 struct drm_connector_state *new_state = 118 drm_atomic_get_new_connector_state(state, conn); 119 struct intel_digital_connector_state *new_conn_state = 120 to_intel_digital_connector_state(new_state); 121 struct drm_connector_state *old_state = 122 drm_atomic_get_old_connector_state(state, conn); 123 struct intel_digital_connector_state *old_conn_state = 124 to_intel_digital_connector_state(old_state); 125 struct drm_crtc_state *crtc_state; 126 127 intel_hdcp_atomic_check(conn, old_state, new_state); 128 129 if (!new_state->crtc) 130 return 0; 131 132 crtc_state = drm_atomic_get_new_crtc_state(state, new_state->crtc); 133 134 /* 135 * These properties are handled by fastset, and might not end 136 * up in a modeset. 137 */ 138 if (new_conn_state->force_audio != old_conn_state->force_audio || 139 new_conn_state->broadcast_rgb != old_conn_state->broadcast_rgb || 140 new_conn_state->base.colorspace != old_conn_state->base.colorspace || 141 new_conn_state->base.picture_aspect_ratio != old_conn_state->base.picture_aspect_ratio || 142 new_conn_state->base.content_type != old_conn_state->base.content_type || 143 new_conn_state->base.scaling_mode != old_conn_state->base.scaling_mode || 144 new_conn_state->base.privacy_screen_sw_state != old_conn_state->base.privacy_screen_sw_state || 145 !drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) 146 crtc_state->mode_changed = true; 147 148 return 0; 149 } 150 151 /** 152 * intel_digital_connector_duplicate_state - duplicate connector state 153 * @connector: digital connector 154 * 155 * Allocates and returns a copy of the connector state (both common and 156 * digital connector specific) for the specified connector. 157 * 158 * Returns: The newly allocated connector state, or NULL on failure. 159 */ 160 struct drm_connector_state * 161 intel_digital_connector_duplicate_state(struct drm_connector *connector) 162 { 163 struct intel_digital_connector_state *state; 164 165 state = kmemdup(connector->state, sizeof(*state), GFP_KERNEL); 166 if (!state) 167 return NULL; 168 169 __drm_atomic_helper_connector_duplicate_state(connector, &state->base); 170 return &state->base; 171 } 172 173 /** 174 * intel_connector_needs_modeset - check if connector needs a modeset 175 * @state: the atomic state corresponding to this modeset 176 * @connector: the connector 177 */ 178 bool 179 intel_connector_needs_modeset(struct intel_atomic_state *state, 180 struct drm_connector *connector) 181 { 182 const struct drm_connector_state *old_conn_state, *new_conn_state; 183 184 old_conn_state = drm_atomic_get_old_connector_state(&state->base, connector); 185 new_conn_state = drm_atomic_get_new_connector_state(&state->base, connector); 186 187 return old_conn_state->crtc != new_conn_state->crtc || 188 (new_conn_state->crtc && 189 drm_atomic_crtc_needs_modeset(drm_atomic_get_new_crtc_state(&state->base, 190 new_conn_state->crtc))); 191 } 192 193 /** 194 * intel_any_crtc_needs_modeset - check if any CRTC needs a modeset 195 * @state: the atomic state corresponding to this modeset 196 * 197 * Returns true if any CRTC in @state needs a modeset. 198 */ 199 bool intel_any_crtc_needs_modeset(struct intel_atomic_state *state) 200 { 201 struct intel_crtc *crtc; 202 struct intel_crtc_state *crtc_state; 203 204 for_each_new_intel_crtc_in_state(state, crtc, crtc_state) { 205 if (intel_crtc_needs_modeset(crtc_state)) 206 return true; 207 } 208 209 return false; 210 } 211 212 struct intel_digital_connector_state * 213 intel_atomic_get_digital_connector_state(struct intel_atomic_state *state, 214 struct intel_connector *connector) 215 { 216 struct drm_connector_state *conn_state; 217 218 conn_state = drm_atomic_get_connector_state(&state->base, 219 &connector->base); 220 if (IS_ERR(conn_state)) 221 return ERR_CAST(conn_state); 222 223 return to_intel_digital_connector_state(conn_state); 224 } 225 226 /** 227 * intel_crtc_duplicate_state - duplicate crtc state 228 * @crtc: drm crtc 229 * 230 * Allocates and returns a copy of the crtc state (both common and 231 * Intel-specific) for the specified crtc. 232 * 233 * Returns: The newly allocated crtc state, or NULL on failure. 234 */ 235 struct drm_crtc_state * 236 intel_crtc_duplicate_state(struct drm_crtc *crtc) 237 { 238 const struct intel_crtc_state *old_crtc_state = to_intel_crtc_state(crtc->state); 239 struct intel_crtc_state *crtc_state; 240 241 crtc_state = kmemdup(old_crtc_state, sizeof(*crtc_state), GFP_KERNEL); 242 if (!crtc_state) 243 return NULL; 244 245 __drm_atomic_helper_crtc_duplicate_state(crtc, &crtc_state->uapi); 246 247 /* copy color blobs */ 248 if (crtc_state->hw.degamma_lut) 249 drm_property_blob_get(crtc_state->hw.degamma_lut); 250 if (crtc_state->hw.ctm) 251 drm_property_blob_get(crtc_state->hw.ctm); 252 if (crtc_state->hw.gamma_lut) 253 drm_property_blob_get(crtc_state->hw.gamma_lut); 254 255 if (crtc_state->pre_csc_lut) 256 drm_property_blob_get(crtc_state->pre_csc_lut); 257 if (crtc_state->post_csc_lut) 258 drm_property_blob_get(crtc_state->post_csc_lut); 259 260 if (crtc_state->dp_tunnel_ref.tunnel) 261 drm_dp_tunnel_ref_get(crtc_state->dp_tunnel_ref.tunnel, 262 &crtc_state->dp_tunnel_ref); 263 264 crtc_state->update_pipe = false; 265 crtc_state->update_m_n = false; 266 crtc_state->update_lrr = false; 267 crtc_state->disable_cxsr = false; 268 crtc_state->update_wm_pre = false; 269 crtc_state->update_wm_post = false; 270 crtc_state->fifo_changed = false; 271 crtc_state->preload_luts = false; 272 crtc_state->wm.need_postvbl_update = false; 273 crtc_state->do_async_flip = false; 274 crtc_state->fb_bits = 0; 275 crtc_state->update_planes = 0; 276 crtc_state->dsb_color = NULL; 277 crtc_state->dsb_commit = NULL; 278 crtc_state->use_dsb = false; 279 280 return &crtc_state->uapi; 281 } 282 283 static void intel_crtc_put_color_blobs(struct intel_crtc_state *crtc_state) 284 { 285 drm_property_blob_put(crtc_state->hw.degamma_lut); 286 drm_property_blob_put(crtc_state->hw.gamma_lut); 287 drm_property_blob_put(crtc_state->hw.ctm); 288 289 drm_property_blob_put(crtc_state->pre_csc_lut); 290 drm_property_blob_put(crtc_state->post_csc_lut); 291 } 292 293 void intel_crtc_free_hw_state(struct intel_crtc_state *crtc_state) 294 { 295 intel_crtc_put_color_blobs(crtc_state); 296 } 297 298 /** 299 * intel_crtc_destroy_state - destroy crtc state 300 * @crtc: drm crtc 301 * @state: the state to destroy 302 * 303 * Destroys the crtc state (both common and Intel-specific) for the 304 * specified crtc. 305 */ 306 void 307 intel_crtc_destroy_state(struct drm_crtc *crtc, 308 struct drm_crtc_state *state) 309 { 310 struct intel_crtc_state *crtc_state = to_intel_crtc_state(state); 311 312 drm_WARN_ON(crtc->dev, crtc_state->dsb_color); 313 drm_WARN_ON(crtc->dev, crtc_state->dsb_commit); 314 315 __drm_atomic_helper_crtc_destroy_state(&crtc_state->uapi); 316 intel_crtc_free_hw_state(crtc_state); 317 if (crtc_state->dp_tunnel_ref.tunnel) 318 drm_dp_tunnel_ref_put(&crtc_state->dp_tunnel_ref); 319 kfree(crtc_state); 320 } 321 322 struct drm_atomic_commit * 323 intel_atomic_state_alloc(struct drm_device *dev) 324 { 325 struct intel_atomic_state *state = kzalloc_obj(*state); 326 327 if (!state || drm_atomic_commit_init(dev, &state->base) < 0) { 328 kfree(state); 329 return NULL; 330 } 331 332 return &state->base; 333 } 334 335 void intel_atomic_state_free(struct drm_atomic_commit *_state) 336 { 337 struct intel_atomic_state *state = to_intel_atomic_state(_state); 338 339 drm_atomic_commit_default_release(&state->base); 340 kfree(state->global_objs); 341 kfree(state); 342 } 343 344 void intel_atomic_state_clear(struct drm_atomic_commit *s) 345 { 346 struct intel_atomic_state *state = to_intel_atomic_state(s); 347 348 drm_atomic_commit_default_clear(&state->base); 349 intel_atomic_clear_global_state(state); 350 351 /* state->internal not reset on purpose */ 352 353 state->dpll_set = state->modeset = false; 354 355 intel_dp_tunnel_atomic_cleanup_inherited_state(state); 356 } 357 358 struct intel_crtc_state * 359 intel_atomic_get_crtc_state(struct drm_atomic_commit *state, 360 struct intel_crtc *crtc) 361 { 362 struct drm_crtc_state *crtc_state; 363 crtc_state = drm_atomic_get_crtc_state(state, &crtc->base); 364 if (IS_ERR(crtc_state)) 365 return ERR_CAST(crtc_state); 366 367 return to_intel_crtc_state(crtc_state); 368 } 369