Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 Red Hat |
| 3 | * Copyright (C) 2014 Intel Corp. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be included in |
| 13 | * all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 21 | * OTHER DEALINGS IN THE SOFTWARE. |
| 22 | * |
| 23 | * Authors: |
| 24 | * Rob Clark <robdclark@gmail.com> |
| 25 | * Daniel Vetter <daniel.vetter@ffwll.ch> |
| 26 | */ |
| 27 | |
| 28 | #include <drm/drmP.h> |
| 29 | #include <drm/drm_atomic.h> |
| 30 | #include <drm/drm_plane_helper.h> |
| 31 | #include <drm/drm_crtc_helper.h> |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 32 | #include <drm/drm_atomic_helper.h> |
Daniel Vetter | e2330f0 | 2014-10-29 11:34:56 +0100 | [diff] [blame] | 33 | #include <linux/fence.h> |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 34 | |
Daniel Vetter | 3150c7d | 2014-11-06 20:53:29 +0100 | [diff] [blame] | 35 | /** |
| 36 | * DOC: overview |
| 37 | * |
| 38 | * This helper library provides implementations of check and commit functions on |
| 39 | * top of the CRTC modeset helper callbacks and the plane helper callbacks. It |
| 40 | * also provides convenience implementations for the atomic state handling |
| 41 | * callbacks for drivers which don't need to subclass the drm core structures to |
| 42 | * add their own additional internal state. |
| 43 | * |
| 44 | * This library also provides default implementations for the check callback in |
| 45 | * drm_atomic_helper_check and for the commit callback with |
| 46 | * drm_atomic_helper_commit. But the individual stages and callbacks are expose |
| 47 | * to allow drivers to mix and match and e.g. use the plane helpers only |
| 48 | * together with a driver private modeset implementation. |
| 49 | * |
| 50 | * This library also provides implementations for all the legacy driver |
| 51 | * interfaces on top of the atomic interface. See drm_atomic_helper_set_config, |
| 52 | * drm_atomic_helper_disable_plane, drm_atomic_helper_disable_plane and the |
| 53 | * various functions to implement set_property callbacks. New drivers must not |
| 54 | * implement these functions themselves but must use the provided helpers. |
| 55 | */ |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 56 | static void |
| 57 | drm_atomic_helper_plane_changed(struct drm_atomic_state *state, |
| 58 | struct drm_plane_state *plane_state, |
| 59 | struct drm_plane *plane) |
| 60 | { |
| 61 | struct drm_crtc_state *crtc_state; |
| 62 | |
| 63 | if (plane->state->crtc) { |
Rob Clark | 4b08eae | 2014-12-08 10:45:43 -0500 | [diff] [blame] | 64 | crtc_state = state->crtc_states[drm_crtc_index(plane->state->crtc)]; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 65 | |
| 66 | if (WARN_ON(!crtc_state)) |
| 67 | return; |
| 68 | |
| 69 | crtc_state->planes_changed = true; |
| 70 | } |
| 71 | |
| 72 | if (plane_state->crtc) { |
| 73 | crtc_state = |
| 74 | state->crtc_states[drm_crtc_index(plane_state->crtc)]; |
| 75 | |
| 76 | if (WARN_ON(!crtc_state)) |
| 77 | return; |
| 78 | |
| 79 | crtc_state->planes_changed = true; |
| 80 | } |
| 81 | } |
| 82 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 83 | static struct drm_crtc * |
| 84 | get_current_crtc_for_encoder(struct drm_device *dev, |
| 85 | struct drm_encoder *encoder) |
| 86 | { |
| 87 | struct drm_mode_config *config = &dev->mode_config; |
| 88 | struct drm_connector *connector; |
| 89 | |
| 90 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); |
| 91 | |
Daniel Vetter | 9a9f5ce | 2015-07-09 23:44:34 +0200 | [diff] [blame] | 92 | drm_for_each_connector(connector, dev) { |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 93 | if (connector->state->best_encoder != encoder) |
| 94 | continue; |
| 95 | |
| 96 | return connector->state->crtc; |
| 97 | } |
| 98 | |
| 99 | return NULL; |
| 100 | } |
| 101 | |
| 102 | static int |
| 103 | steal_encoder(struct drm_atomic_state *state, |
| 104 | struct drm_encoder *encoder, |
| 105 | struct drm_crtc *encoder_crtc) |
| 106 | { |
| 107 | struct drm_mode_config *config = &state->dev->mode_config; |
| 108 | struct drm_crtc_state *crtc_state; |
| 109 | struct drm_connector *connector; |
| 110 | struct drm_connector_state *connector_state; |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 111 | int ret; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 112 | |
| 113 | /* |
| 114 | * We can only steal an encoder coming from a connector, which means we |
| 115 | * must already hold the connection_mutex. |
| 116 | */ |
| 117 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); |
| 118 | |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 119 | DRM_DEBUG_ATOMIC("[ENCODER:%d:%s] in use on [CRTC:%d], stealing it\n", |
| 120 | encoder->base.id, encoder->name, |
| 121 | encoder_crtc->base.id); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 122 | |
| 123 | crtc_state = drm_atomic_get_crtc_state(state, encoder_crtc); |
| 124 | if (IS_ERR(crtc_state)) |
| 125 | return PTR_ERR(crtc_state); |
| 126 | |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 127 | crtc_state->connectors_changed = true; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 128 | |
| 129 | list_for_each_entry(connector, &config->connector_list, head) { |
| 130 | if (connector->state->best_encoder != encoder) |
| 131 | continue; |
| 132 | |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 133 | DRM_DEBUG_ATOMIC("Stealing encoder from [CONNECTOR:%d:%s]\n", |
| 134 | connector->base.id, |
| 135 | connector->name); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 136 | |
| 137 | connector_state = drm_atomic_get_connector_state(state, |
| 138 | connector); |
| 139 | if (IS_ERR(connector_state)) |
| 140 | return PTR_ERR(connector_state); |
| 141 | |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 142 | ret = drm_atomic_set_crtc_for_connector(connector_state, NULL); |
| 143 | if (ret) |
| 144 | return ret; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 145 | connector_state->best_encoder = NULL; |
| 146 | } |
| 147 | |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | static int |
| 152 | update_connector_routing(struct drm_atomic_state *state, int conn_idx) |
| 153 | { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 154 | const struct drm_connector_helper_funcs *funcs; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 155 | struct drm_encoder *new_encoder; |
| 156 | struct drm_crtc *encoder_crtc; |
| 157 | struct drm_connector *connector; |
| 158 | struct drm_connector_state *connector_state; |
| 159 | struct drm_crtc_state *crtc_state; |
| 160 | int idx, ret; |
| 161 | |
| 162 | connector = state->connectors[conn_idx]; |
| 163 | connector_state = state->connector_states[conn_idx]; |
| 164 | |
| 165 | if (!connector) |
| 166 | return 0; |
| 167 | |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 168 | DRM_DEBUG_ATOMIC("Updating routing for [CONNECTOR:%d:%s]\n", |
| 169 | connector->base.id, |
| 170 | connector->name); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 171 | |
| 172 | if (connector->state->crtc != connector_state->crtc) { |
| 173 | if (connector->state->crtc) { |
| 174 | idx = drm_crtc_index(connector->state->crtc); |
| 175 | |
| 176 | crtc_state = state->crtc_states[idx]; |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 177 | crtc_state->connectors_changed = true; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 178 | } |
| 179 | |
| 180 | if (connector_state->crtc) { |
| 181 | idx = drm_crtc_index(connector_state->crtc); |
| 182 | |
| 183 | crtc_state = state->crtc_states[idx]; |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 184 | crtc_state->connectors_changed = true; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 185 | } |
| 186 | } |
| 187 | |
| 188 | if (!connector_state->crtc) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 189 | DRM_DEBUG_ATOMIC("Disabling [CONNECTOR:%d:%s]\n", |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 190 | connector->base.id, |
| 191 | connector->name); |
| 192 | |
| 193 | connector_state->best_encoder = NULL; |
| 194 | |
| 195 | return 0; |
| 196 | } |
| 197 | |
| 198 | funcs = connector->helper_private; |
Daniel Vetter | 3b8a684b | 2015-08-03 17:24:08 +0200 | [diff] [blame] | 199 | |
| 200 | if (funcs->atomic_best_encoder) |
| 201 | new_encoder = funcs->atomic_best_encoder(connector, |
| 202 | connector_state); |
| 203 | else |
| 204 | new_encoder = funcs->best_encoder(connector); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 205 | |
| 206 | if (!new_encoder) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 207 | DRM_DEBUG_ATOMIC("No suitable encoder found for [CONNECTOR:%d:%s]\n", |
| 208 | connector->base.id, |
| 209 | connector->name); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 210 | return -EINVAL; |
| 211 | } |
| 212 | |
| 213 | if (new_encoder == connector_state->best_encoder) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 214 | DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] keeps [ENCODER:%d:%s], now on [CRTC:%d]\n", |
| 215 | connector->base.id, |
| 216 | connector->name, |
| 217 | new_encoder->base.id, |
| 218 | new_encoder->name, |
| 219 | connector_state->crtc->base.id); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 220 | |
| 221 | return 0; |
| 222 | } |
| 223 | |
| 224 | encoder_crtc = get_current_crtc_for_encoder(state->dev, |
| 225 | new_encoder); |
| 226 | |
| 227 | if (encoder_crtc) { |
| 228 | ret = steal_encoder(state, new_encoder, encoder_crtc); |
| 229 | if (ret) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 230 | DRM_DEBUG_ATOMIC("Encoder stealing failed for [CONNECTOR:%d:%s]\n", |
| 231 | connector->base.id, |
| 232 | connector->name); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 233 | return ret; |
| 234 | } |
| 235 | } |
| 236 | |
Daniel Vetter | 6ea76f3c | 2015-08-03 17:24:11 +0200 | [diff] [blame] | 237 | if (WARN_ON(!connector_state->crtc)) |
| 238 | return -EINVAL; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 239 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 240 | connector_state->best_encoder = new_encoder; |
| 241 | idx = drm_crtc_index(connector_state->crtc); |
| 242 | |
| 243 | crtc_state = state->crtc_states[idx]; |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 244 | crtc_state->connectors_changed = true; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 245 | |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 246 | DRM_DEBUG_ATOMIC("[CONNECTOR:%d:%s] using [ENCODER:%d:%s] on [CRTC:%d]\n", |
| 247 | connector->base.id, |
| 248 | connector->name, |
| 249 | new_encoder->base.id, |
| 250 | new_encoder->name, |
| 251 | connector_state->crtc->base.id); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 252 | |
| 253 | return 0; |
| 254 | } |
| 255 | |
| 256 | static int |
| 257 | mode_fixup(struct drm_atomic_state *state) |
| 258 | { |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 259 | struct drm_crtc *crtc; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 260 | struct drm_crtc_state *crtc_state; |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 261 | struct drm_connector *connector; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 262 | struct drm_connector_state *conn_state; |
| 263 | int i; |
| 264 | bool ret; |
| 265 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 266 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 267 | if (!crtc_state->mode_changed && |
| 268 | !crtc_state->connectors_changed) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 269 | continue; |
| 270 | |
| 271 | drm_mode_copy(&crtc_state->adjusted_mode, &crtc_state->mode); |
| 272 | } |
| 273 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 274 | for_each_connector_in_state(state, connector, conn_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 275 | const struct drm_encoder_helper_funcs *funcs; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 276 | struct drm_encoder *encoder; |
| 277 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 278 | WARN_ON(!!conn_state->best_encoder != !!conn_state->crtc); |
| 279 | |
| 280 | if (!conn_state->crtc || !conn_state->best_encoder) |
| 281 | continue; |
| 282 | |
| 283 | crtc_state = |
| 284 | state->crtc_states[drm_crtc_index(conn_state->crtc)]; |
| 285 | |
| 286 | /* |
| 287 | * Each encoder has at most one connector (since we always steal |
| 288 | * it away), so we won't call ->mode_fixup twice. |
| 289 | */ |
| 290 | encoder = conn_state->best_encoder; |
| 291 | funcs = encoder->helper_private; |
Ander Conselvan de Oliveira | 840bfe9 | 2015-04-21 17:13:18 +0300 | [diff] [blame] | 292 | if (!funcs) |
| 293 | continue; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 294 | |
Archit Taneja | 862e686 | 2015-05-21 11:03:16 +0530 | [diff] [blame] | 295 | ret = drm_bridge_mode_fixup(encoder->bridge, &crtc_state->mode, |
| 296 | &crtc_state->adjusted_mode); |
| 297 | if (!ret) { |
| 298 | DRM_DEBUG_ATOMIC("Bridge fixup failed\n"); |
| 299 | return -EINVAL; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 300 | } |
| 301 | |
Thierry Reding | 4cd4df8 | 2014-12-03 16:44:34 +0100 | [diff] [blame] | 302 | if (funcs->atomic_check) { |
| 303 | ret = funcs->atomic_check(encoder, crtc_state, |
| 304 | conn_state); |
| 305 | if (ret) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 306 | DRM_DEBUG_ATOMIC("[ENCODER:%d:%s] check failed\n", |
| 307 | encoder->base.id, encoder->name); |
Thierry Reding | 4cd4df8 | 2014-12-03 16:44:34 +0100 | [diff] [blame] | 308 | return ret; |
| 309 | } |
| 310 | } else { |
| 311 | ret = funcs->mode_fixup(encoder, &crtc_state->mode, |
| 312 | &crtc_state->adjusted_mode); |
| 313 | if (!ret) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 314 | DRM_DEBUG_ATOMIC("[ENCODER:%d:%s] fixup failed\n", |
| 315 | encoder->base.id, encoder->name); |
Thierry Reding | 4cd4df8 | 2014-12-03 16:44:34 +0100 | [diff] [blame] | 316 | return -EINVAL; |
| 317 | } |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 318 | } |
| 319 | } |
| 320 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 321 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 322 | const struct drm_crtc_helper_funcs *funcs; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 323 | |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 324 | if (!crtc_state->mode_changed && |
| 325 | !crtc_state->connectors_changed) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 326 | continue; |
| 327 | |
| 328 | funcs = crtc->helper_private; |
Ander Conselvan de Oliveira | 840bfe9 | 2015-04-21 17:13:18 +0300 | [diff] [blame] | 329 | if (!funcs->mode_fixup) |
| 330 | continue; |
| 331 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 332 | ret = funcs->mode_fixup(crtc, &crtc_state->mode, |
| 333 | &crtc_state->adjusted_mode); |
| 334 | if (!ret) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 335 | DRM_DEBUG_ATOMIC("[CRTC:%d] fixup failed\n", |
| 336 | crtc->base.id); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 337 | return -EINVAL; |
| 338 | } |
| 339 | } |
| 340 | |
| 341 | return 0; |
| 342 | } |
| 343 | |
Daniel Vetter | d9b1362 | 2014-11-26 16:57:41 +0100 | [diff] [blame] | 344 | /** |
John Hunter | f98bd3e | 2015-03-17 15:30:26 +0800 | [diff] [blame] | 345 | * drm_atomic_helper_check_modeset - validate state object for modeset changes |
Daniel Vetter | d9b1362 | 2014-11-26 16:57:41 +0100 | [diff] [blame] | 346 | * @dev: DRM device |
| 347 | * @state: the driver state object |
| 348 | * |
| 349 | * Check the state object to see if the requested state is physically possible. |
| 350 | * This does all the crtc and connector related computations for an atomic |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 351 | * update and adds any additional connectors needed for full modesets and calls |
| 352 | * down into ->mode_fixup functions of the driver backend. |
| 353 | * |
| 354 | * crtc_state->mode_changed is set when the input mode is changed. |
| 355 | * crtc_state->connectors_changed is set when a connector is added or |
| 356 | * removed from the crtc. |
| 357 | * crtc_state->active_changed is set when crtc_state->active changes, |
| 358 | * which is used for dpms. |
Daniel Vetter | d9b1362 | 2014-11-26 16:57:41 +0100 | [diff] [blame] | 359 | * |
| 360 | * IMPORTANT: |
| 361 | * |
| 362 | * Drivers which update ->mode_changed (e.g. in their ->atomic_check hooks if a |
| 363 | * plane update can't be done without a full modeset) _must_ call this function |
| 364 | * afterwards after that change. It is permitted to call this function multiple |
| 365 | * times for the same update, e.g. when the ->atomic_check functions depend upon |
| 366 | * the adjusted dotclock for fifo space allocation and watermark computation. |
| 367 | * |
| 368 | * RETURNS |
| 369 | * Zero for success or -errno |
| 370 | */ |
| 371 | int |
Rob Clark | 934ce1c | 2014-11-19 16:41:33 -0500 | [diff] [blame] | 372 | drm_atomic_helper_check_modeset(struct drm_device *dev, |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 373 | struct drm_atomic_state *state) |
| 374 | { |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 375 | struct drm_crtc *crtc; |
| 376 | struct drm_crtc_state *crtc_state; |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 377 | struct drm_connector *connector; |
| 378 | struct drm_connector_state *connector_state; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 379 | int i, ret; |
| 380 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 381 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 382 | if (!drm_mode_equal(&crtc->state->mode, &crtc_state->mode)) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 383 | DRM_DEBUG_ATOMIC("[CRTC:%d] mode changed\n", |
| 384 | crtc->base.id); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 385 | crtc_state->mode_changed = true; |
| 386 | } |
| 387 | |
| 388 | if (crtc->state->enable != crtc_state->enable) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 389 | DRM_DEBUG_ATOMIC("[CRTC:%d] enable changed\n", |
| 390 | crtc->base.id); |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 391 | |
| 392 | /* |
| 393 | * For clarity this assignment is done here, but |
| 394 | * enable == 0 is only true when there are no |
| 395 | * connectors and a NULL mode. |
| 396 | * |
| 397 | * The other way around is true as well. enable != 0 |
| 398 | * iff connectors are attached and a mode is set. |
| 399 | */ |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 400 | crtc_state->mode_changed = true; |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 401 | crtc_state->connectors_changed = true; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 402 | } |
| 403 | } |
| 404 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 405 | for_each_connector_in_state(state, connector, connector_state, i) { |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 406 | /* |
| 407 | * This only sets crtc->mode_changed for routing changes, |
| 408 | * drivers must set crtc->mode_changed themselves when connector |
| 409 | * properties need to be updated. |
| 410 | */ |
| 411 | ret = update_connector_routing(state, i); |
| 412 | if (ret) |
| 413 | return ret; |
| 414 | } |
| 415 | |
| 416 | /* |
| 417 | * After all the routing has been prepared we need to add in any |
| 418 | * connector which is itself unchanged, but who's crtc changes it's |
| 419 | * configuration. This must be done before calling mode_fixup in case a |
| 420 | * crtc only changed its mode but has the same set of connectors. |
| 421 | */ |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 422 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 423 | int num_connectors; |
| 424 | |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 425 | /* |
| 426 | * We must set ->active_changed after walking connectors for |
| 427 | * otherwise an update that only changes active would result in |
| 428 | * a full modeset because update_connector_routing force that. |
| 429 | */ |
| 430 | if (crtc->state->active != crtc_state->active) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 431 | DRM_DEBUG_ATOMIC("[CRTC:%d] active changed\n", |
| 432 | crtc->base.id); |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 433 | crtc_state->active_changed = true; |
| 434 | } |
| 435 | |
Daniel Vetter | 2465ff6 | 2015-06-18 09:58:55 +0200 | [diff] [blame] | 436 | if (!drm_atomic_crtc_needs_modeset(crtc_state)) |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 437 | continue; |
| 438 | |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 439 | DRM_DEBUG_ATOMIC("[CRTC:%d] needs all connectors, enable: %c, active: %c\n", |
| 440 | crtc->base.id, |
| 441 | crtc_state->enable ? 'y' : 'n', |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 442 | crtc_state->active ? 'y' : 'n'); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 443 | |
| 444 | ret = drm_atomic_add_affected_connectors(state, crtc); |
| 445 | if (ret != 0) |
| 446 | return ret; |
| 447 | |
Maarten Lankhorst | 57744aa | 2015-05-19 16:41:03 +0200 | [diff] [blame] | 448 | ret = drm_atomic_add_affected_planes(state, crtc); |
| 449 | if (ret != 0) |
| 450 | return ret; |
| 451 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 452 | num_connectors = drm_atomic_connectors_for_crtc(state, |
| 453 | crtc); |
| 454 | |
| 455 | if (crtc_state->enable != !!num_connectors) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 456 | DRM_DEBUG_ATOMIC("[CRTC:%d] enabled/connectors mismatch\n", |
| 457 | crtc->base.id); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 458 | |
| 459 | return -EINVAL; |
| 460 | } |
| 461 | } |
| 462 | |
| 463 | return mode_fixup(state); |
| 464 | } |
Daniel Vetter | d9b1362 | 2014-11-26 16:57:41 +0100 | [diff] [blame] | 465 | EXPORT_SYMBOL(drm_atomic_helper_check_modeset); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 466 | |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 467 | /** |
John Hunter | f98bd3e | 2015-03-17 15:30:26 +0800 | [diff] [blame] | 468 | * drm_atomic_helper_check_planes - validate state object for planes changes |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 469 | * @dev: DRM device |
| 470 | * @state: the driver state object |
| 471 | * |
| 472 | * Check the state object to see if the requested state is physically possible. |
Daniel Vetter | d9b1362 | 2014-11-26 16:57:41 +0100 | [diff] [blame] | 473 | * This does all the plane update related checks using by calling into the |
| 474 | * ->atomic_check hooks provided by the driver. |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 475 | * |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 476 | * It also sets crtc_state->planes_changed to indicate that a crtc has |
| 477 | * updated planes. |
| 478 | * |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 479 | * RETURNS |
| 480 | * Zero for success or -errno |
| 481 | */ |
Daniel Vetter | d9b1362 | 2014-11-26 16:57:41 +0100 | [diff] [blame] | 482 | int |
| 483 | drm_atomic_helper_check_planes(struct drm_device *dev, |
| 484 | struct drm_atomic_state *state) |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 485 | { |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 486 | struct drm_crtc *crtc; |
| 487 | struct drm_crtc_state *crtc_state; |
| 488 | struct drm_plane *plane; |
| 489 | struct drm_plane_state *plane_state; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 490 | int i, ret = 0; |
| 491 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 492 | for_each_plane_in_state(state, plane, plane_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 493 | const struct drm_plane_helper_funcs *funcs; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 494 | |
| 495 | funcs = plane->helper_private; |
| 496 | |
| 497 | drm_atomic_helper_plane_changed(state, plane_state, plane); |
| 498 | |
| 499 | if (!funcs || !funcs->atomic_check) |
| 500 | continue; |
| 501 | |
| 502 | ret = funcs->atomic_check(plane, plane_state); |
| 503 | if (ret) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 504 | DRM_DEBUG_ATOMIC("[PLANE:%d] atomic driver check failed\n", |
| 505 | plane->base.id); |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 506 | return ret; |
| 507 | } |
| 508 | } |
| 509 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 510 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 511 | const struct drm_crtc_helper_funcs *funcs; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 512 | |
| 513 | funcs = crtc->helper_private; |
| 514 | |
| 515 | if (!funcs || !funcs->atomic_check) |
| 516 | continue; |
| 517 | |
| 518 | ret = funcs->atomic_check(crtc, state->crtc_states[i]); |
| 519 | if (ret) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 520 | DRM_DEBUG_ATOMIC("[CRTC:%d] atomic driver check failed\n", |
| 521 | crtc->base.id); |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 522 | return ret; |
| 523 | } |
| 524 | } |
| 525 | |
Daniel Vetter | d9b1362 | 2014-11-26 16:57:41 +0100 | [diff] [blame] | 526 | return ret; |
| 527 | } |
| 528 | EXPORT_SYMBOL(drm_atomic_helper_check_planes); |
| 529 | |
| 530 | /** |
| 531 | * drm_atomic_helper_check - validate state object |
| 532 | * @dev: DRM device |
| 533 | * @state: the driver state object |
| 534 | * |
| 535 | * Check the state object to see if the requested state is physically possible. |
| 536 | * Only crtcs and planes have check callbacks, so for any additional (global) |
| 537 | * checking that a driver needs it can simply wrap that around this function. |
| 538 | * Drivers without such needs can directly use this as their ->atomic_check() |
| 539 | * callback. |
| 540 | * |
Daniel Vetter | b4274fb | 2014-11-26 17:02:18 +0100 | [diff] [blame] | 541 | * This just wraps the two parts of the state checking for planes and modeset |
| 542 | * state in the default order: First it calls drm_atomic_helper_check_modeset() |
| 543 | * and then drm_atomic_helper_check_planes(). The assumption is that the |
| 544 | * ->atomic_check functions depend upon an updated adjusted_mode.clock to |
| 545 | * e.g. properly compute watermarks. |
| 546 | * |
Daniel Vetter | d9b1362 | 2014-11-26 16:57:41 +0100 | [diff] [blame] | 547 | * RETURNS |
| 548 | * Zero for success or -errno |
| 549 | */ |
| 550 | int drm_atomic_helper_check(struct drm_device *dev, |
| 551 | struct drm_atomic_state *state) |
| 552 | { |
| 553 | int ret; |
| 554 | |
Daniel Vetter | b4274fb | 2014-11-26 17:02:18 +0100 | [diff] [blame] | 555 | ret = drm_atomic_helper_check_modeset(dev, state); |
Daniel Vetter | d9b1362 | 2014-11-26 16:57:41 +0100 | [diff] [blame] | 556 | if (ret) |
| 557 | return ret; |
| 558 | |
Daniel Vetter | b4274fb | 2014-11-26 17:02:18 +0100 | [diff] [blame] | 559 | ret = drm_atomic_helper_check_planes(dev, state); |
Rob Clark | 934ce1c | 2014-11-19 16:41:33 -0500 | [diff] [blame] | 560 | if (ret) |
| 561 | return ret; |
| 562 | |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 563 | return ret; |
| 564 | } |
| 565 | EXPORT_SYMBOL(drm_atomic_helper_check); |
| 566 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 567 | static void |
| 568 | disable_outputs(struct drm_device *dev, struct drm_atomic_state *old_state) |
| 569 | { |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 570 | struct drm_connector *connector; |
| 571 | struct drm_connector_state *old_conn_state; |
| 572 | struct drm_crtc *crtc; |
| 573 | struct drm_crtc_state *old_crtc_state; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 574 | int i; |
| 575 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 576 | for_each_connector_in_state(old_state, connector, old_conn_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 577 | const struct drm_encoder_helper_funcs *funcs; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 578 | struct drm_encoder *encoder; |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 579 | struct drm_crtc_state *old_crtc_state; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 580 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 581 | /* Shut down everything that's in the changeset and currently |
| 582 | * still on. So need to check the old, saved state. */ |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 583 | if (!old_conn_state->crtc) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 584 | continue; |
| 585 | |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 586 | old_crtc_state = old_state->crtc_states[drm_crtc_index(old_conn_state->crtc)]; |
| 587 | |
Daniel Vetter | 4218a32 | 2015-03-26 22:18:40 +0100 | [diff] [blame] | 588 | if (!old_crtc_state->active || |
Daniel Vetter | 2465ff6 | 2015-06-18 09:58:55 +0200 | [diff] [blame] | 589 | !drm_atomic_crtc_needs_modeset(old_conn_state->crtc->state)) |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 590 | continue; |
| 591 | |
Rob Clark | 46df9ad | 2014-11-20 15:40:36 -0500 | [diff] [blame] | 592 | encoder = old_conn_state->best_encoder; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 593 | |
Rob Clark | 46df9ad | 2014-11-20 15:40:36 -0500 | [diff] [blame] | 594 | /* We shouldn't get this far if we didn't previously have |
| 595 | * an encoder.. but WARN_ON() rather than explode. |
| 596 | */ |
| 597 | if (WARN_ON(!encoder)) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 598 | continue; |
| 599 | |
| 600 | funcs = encoder->helper_private; |
| 601 | |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 602 | DRM_DEBUG_ATOMIC("disabling [ENCODER:%d:%s]\n", |
| 603 | encoder->base.id, encoder->name); |
Daniel Vetter | 95d6eb3 | 2015-01-22 16:36:25 +0100 | [diff] [blame] | 604 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 605 | /* |
| 606 | * Each encoder has at most one connector (since we always steal |
John Hunter | f98bd3e | 2015-03-17 15:30:26 +0800 | [diff] [blame] | 607 | * it away), so we won't call disable hooks twice. |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 608 | */ |
Archit Taneja | 862e686 | 2015-05-21 11:03:16 +0530 | [diff] [blame] | 609 | drm_bridge_disable(encoder->bridge); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 610 | |
| 611 | /* Right function depends upon target state. */ |
Daniel Vetter | ee0a89c | 2015-01-22 16:36:24 +0100 | [diff] [blame] | 612 | if (connector->state->crtc && funcs->prepare) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 613 | funcs->prepare(encoder); |
| 614 | else if (funcs->disable) |
| 615 | funcs->disable(encoder); |
| 616 | else |
| 617 | funcs->dpms(encoder, DRM_MODE_DPMS_OFF); |
| 618 | |
Archit Taneja | 862e686 | 2015-05-21 11:03:16 +0530 | [diff] [blame] | 619 | drm_bridge_post_disable(encoder->bridge); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 620 | } |
| 621 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 622 | for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 623 | const struct drm_crtc_helper_funcs *funcs; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 624 | |
| 625 | /* Shut down everything that needs a full modeset. */ |
Daniel Vetter | 2465ff6 | 2015-06-18 09:58:55 +0200 | [diff] [blame] | 626 | if (!drm_atomic_crtc_needs_modeset(crtc->state)) |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 627 | continue; |
| 628 | |
| 629 | if (!old_crtc_state->active) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 630 | continue; |
| 631 | |
| 632 | funcs = crtc->helper_private; |
| 633 | |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 634 | DRM_DEBUG_ATOMIC("disabling [CRTC:%d]\n", |
| 635 | crtc->base.id); |
Daniel Vetter | 95d6eb3 | 2015-01-22 16:36:25 +0100 | [diff] [blame] | 636 | |
| 637 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 638 | /* Right function depends upon target state. */ |
Daniel Vetter | ee0a89c | 2015-01-22 16:36:24 +0100 | [diff] [blame] | 639 | if (crtc->state->enable && funcs->prepare) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 640 | funcs->prepare(crtc); |
| 641 | else if (funcs->disable) |
| 642 | funcs->disable(crtc); |
| 643 | else |
| 644 | funcs->dpms(crtc, DRM_MODE_DPMS_OFF); |
| 645 | } |
| 646 | } |
| 647 | |
Daniel Vetter | 4c18d30 | 2015-05-12 15:27:37 +0200 | [diff] [blame] | 648 | /** |
| 649 | * drm_atomic_helper_update_legacy_modeset_state - update legacy modeset state |
| 650 | * @dev: DRM device |
| 651 | * @old_state: atomic state object with old state structures |
| 652 | * |
| 653 | * This function updates all the various legacy modeset state pointers in |
| 654 | * connectors, encoders and crtcs. It also updates the timestamping constants |
| 655 | * used for precise vblank timestamps by calling |
| 656 | * drm_calc_timestamping_constants(). |
| 657 | * |
| 658 | * Drivers can use this for building their own atomic commit if they don't have |
| 659 | * a pure helper-based modeset implementation. |
| 660 | */ |
| 661 | void |
| 662 | drm_atomic_helper_update_legacy_modeset_state(struct drm_device *dev, |
| 663 | struct drm_atomic_state *old_state) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 664 | { |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 665 | struct drm_connector *connector; |
| 666 | struct drm_connector_state *old_conn_state; |
| 667 | struct drm_crtc *crtc; |
| 668 | struct drm_crtc_state *old_crtc_state; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 669 | int i; |
| 670 | |
Maarten Lankhorst | 8c10342 | 2015-07-27 13:24:29 +0200 | [diff] [blame] | 671 | /* clear out existing links and update dpms */ |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 672 | for_each_connector_in_state(old_state, connector, old_conn_state, i) { |
Maarten Lankhorst | 8c10342 | 2015-07-27 13:24:29 +0200 | [diff] [blame] | 673 | if (connector->encoder) { |
| 674 | WARN_ON(!connector->encoder->crtc); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 675 | |
Maarten Lankhorst | 8c10342 | 2015-07-27 13:24:29 +0200 | [diff] [blame] | 676 | connector->encoder->crtc = NULL; |
| 677 | connector->encoder = NULL; |
| 678 | } |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 679 | |
Maarten Lankhorst | 8c10342 | 2015-07-27 13:24:29 +0200 | [diff] [blame] | 680 | crtc = connector->state->crtc; |
| 681 | if ((!crtc && old_conn_state->crtc) || |
| 682 | (crtc && drm_atomic_crtc_needs_modeset(crtc->state))) { |
| 683 | struct drm_property *dpms_prop = |
| 684 | dev->mode_config.dpms_property; |
| 685 | int mode = DRM_MODE_DPMS_OFF; |
| 686 | |
| 687 | if (crtc && crtc->state->active) |
| 688 | mode = DRM_MODE_DPMS_ON; |
| 689 | |
| 690 | connector->dpms = mode; |
| 691 | drm_object_property_set_value(&connector->base, |
| 692 | dpms_prop, mode); |
| 693 | } |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 694 | } |
| 695 | |
| 696 | /* set new links */ |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 697 | for_each_connector_in_state(old_state, connector, old_conn_state, i) { |
| 698 | if (!connector->state->crtc) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 699 | continue; |
| 700 | |
| 701 | if (WARN_ON(!connector->state->best_encoder)) |
| 702 | continue; |
| 703 | |
| 704 | connector->encoder = connector->state->best_encoder; |
| 705 | connector->encoder->crtc = connector->state->crtc; |
| 706 | } |
| 707 | |
| 708 | /* set legacy state in the crtc structure */ |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 709 | for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { |
Maarten Lankhorst | 2660801 | 2015-07-16 15:51:01 +0200 | [diff] [blame] | 710 | struct drm_plane *primary = crtc->primary; |
| 711 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 712 | crtc->mode = crtc->state->mode; |
| 713 | crtc->enabled = crtc->state->enable; |
Maarten Lankhorst | 2660801 | 2015-07-16 15:51:01 +0200 | [diff] [blame] | 714 | |
| 715 | if (drm_atomic_get_existing_plane_state(old_state, primary) && |
| 716 | primary->state->crtc == crtc) { |
| 717 | crtc->x = primary->state->src_x >> 16; |
| 718 | crtc->y = primary->state->src_y >> 16; |
| 719 | } |
Daniel Vetter | 3d51d2d | 2015-05-12 15:21:06 +0200 | [diff] [blame] | 720 | |
| 721 | if (crtc->state->enable) |
| 722 | drm_calc_timestamping_constants(crtc, |
| 723 | &crtc->state->adjusted_mode); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 724 | } |
| 725 | } |
Daniel Vetter | 4c18d30 | 2015-05-12 15:27:37 +0200 | [diff] [blame] | 726 | EXPORT_SYMBOL(drm_atomic_helper_update_legacy_modeset_state); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 727 | |
| 728 | static void |
| 729 | crtc_set_mode(struct drm_device *dev, struct drm_atomic_state *old_state) |
| 730 | { |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 731 | struct drm_crtc *crtc; |
| 732 | struct drm_crtc_state *old_crtc_state; |
| 733 | struct drm_connector *connector; |
| 734 | struct drm_connector_state *old_conn_state; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 735 | int i; |
| 736 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 737 | for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 738 | const struct drm_crtc_helper_funcs *funcs; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 739 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 740 | if (!crtc->state->mode_changed) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 741 | continue; |
| 742 | |
| 743 | funcs = crtc->helper_private; |
| 744 | |
Daniel Vetter | c982bd9 | 2015-02-22 12:24:20 +0100 | [diff] [blame] | 745 | if (crtc->state->enable && funcs->mode_set_nofb) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 746 | DRM_DEBUG_ATOMIC("modeset on [CRTC:%d]\n", |
| 747 | crtc->base.id); |
Daniel Vetter | 95d6eb3 | 2015-01-22 16:36:25 +0100 | [diff] [blame] | 748 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 749 | funcs->mode_set_nofb(crtc); |
Daniel Vetter | 95d6eb3 | 2015-01-22 16:36:25 +0100 | [diff] [blame] | 750 | } |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 751 | } |
| 752 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 753 | for_each_connector_in_state(old_state, connector, old_conn_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 754 | const struct drm_encoder_helper_funcs *funcs; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 755 | struct drm_crtc_state *new_crtc_state; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 756 | struct drm_encoder *encoder; |
| 757 | struct drm_display_mode *mode, *adjusted_mode; |
| 758 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 759 | if (!connector->state->best_encoder) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 760 | continue; |
| 761 | |
| 762 | encoder = connector->state->best_encoder; |
| 763 | funcs = encoder->helper_private; |
| 764 | new_crtc_state = connector->state->crtc->state; |
| 765 | mode = &new_crtc_state->mode; |
| 766 | adjusted_mode = &new_crtc_state->adjusted_mode; |
| 767 | |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 768 | if (!new_crtc_state->mode_changed) |
| 769 | continue; |
| 770 | |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 771 | DRM_DEBUG_ATOMIC("modeset on [ENCODER:%d:%s]\n", |
| 772 | encoder->base.id, encoder->name); |
Daniel Vetter | 95d6eb3 | 2015-01-22 16:36:25 +0100 | [diff] [blame] | 773 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 774 | /* |
| 775 | * Each encoder has at most one connector (since we always steal |
John Hunter | f98bd3e | 2015-03-17 15:30:26 +0800 | [diff] [blame] | 776 | * it away), so we won't call mode_set hooks twice. |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 777 | */ |
Daniel Vetter | c982bd9 | 2015-02-22 12:24:20 +0100 | [diff] [blame] | 778 | if (funcs->mode_set) |
| 779 | funcs->mode_set(encoder, mode, adjusted_mode); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 780 | |
Archit Taneja | 862e686 | 2015-05-21 11:03:16 +0530 | [diff] [blame] | 781 | drm_bridge_mode_set(encoder->bridge, mode, adjusted_mode); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 782 | } |
| 783 | } |
| 784 | |
| 785 | /** |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 786 | * drm_atomic_helper_commit_modeset_disables - modeset commit to disable outputs |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 787 | * @dev: DRM device |
Laurent Pinchart | a072f80 | 2015-02-22 12:24:18 +0100 | [diff] [blame] | 788 | * @old_state: atomic state object with old state structures |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 789 | * |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 790 | * This function shuts down all the outputs that need to be shut down and |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 791 | * prepares them (if required) with the new mode. |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 792 | * |
| 793 | * For compatability with legacy crtc helpers this should be called before |
| 794 | * drm_atomic_helper_commit_planes(), which is what the default commit function |
| 795 | * does. But drivers with different needs can group the modeset commits together |
| 796 | * and do the plane commits at the end. This is useful for drivers doing runtime |
| 797 | * PM since planes updates then only happen when the CRTC is actually enabled. |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 798 | */ |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 799 | void drm_atomic_helper_commit_modeset_disables(struct drm_device *dev, |
| 800 | struct drm_atomic_state *old_state) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 801 | { |
Laurent Pinchart | a072f80 | 2015-02-22 12:24:18 +0100 | [diff] [blame] | 802 | disable_outputs(dev, old_state); |
Daniel Vetter | 4c18d30 | 2015-05-12 15:27:37 +0200 | [diff] [blame] | 803 | |
| 804 | drm_atomic_helper_update_legacy_modeset_state(dev, old_state); |
| 805 | |
Laurent Pinchart | a072f80 | 2015-02-22 12:24:18 +0100 | [diff] [blame] | 806 | crtc_set_mode(dev, old_state); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 807 | } |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 808 | EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_disables); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 809 | |
| 810 | /** |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 811 | * drm_atomic_helper_commit_modeset_enables - modeset commit to enable outputs |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 812 | * @dev: DRM device |
| 813 | * @old_state: atomic state object with old state structures |
| 814 | * |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 815 | * This function enables all the outputs with the new configuration which had to |
| 816 | * be turned off for the update. |
| 817 | * |
| 818 | * For compatability with legacy crtc helpers this should be called after |
| 819 | * drm_atomic_helper_commit_planes(), which is what the default commit function |
| 820 | * does. But drivers with different needs can group the modeset commits together |
| 821 | * and do the plane commits at the end. This is useful for drivers doing runtime |
| 822 | * PM since planes updates then only happen when the CRTC is actually enabled. |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 823 | */ |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 824 | void drm_atomic_helper_commit_modeset_enables(struct drm_device *dev, |
| 825 | struct drm_atomic_state *old_state) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 826 | { |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 827 | struct drm_crtc *crtc; |
| 828 | struct drm_crtc_state *old_crtc_state; |
| 829 | struct drm_connector *connector; |
| 830 | struct drm_connector_state *old_conn_state; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 831 | int i; |
| 832 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 833 | for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 834 | const struct drm_crtc_helper_funcs *funcs; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 835 | |
| 836 | /* Need to filter out CRTCs where only planes change. */ |
Daniel Vetter | 2465ff6 | 2015-06-18 09:58:55 +0200 | [diff] [blame] | 837 | if (!drm_atomic_crtc_needs_modeset(crtc->state)) |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 838 | continue; |
| 839 | |
| 840 | if (!crtc->state->active) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 841 | continue; |
| 842 | |
| 843 | funcs = crtc->helper_private; |
| 844 | |
Daniel Vetter | ee0a89c | 2015-01-22 16:36:24 +0100 | [diff] [blame] | 845 | if (crtc->state->enable) { |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 846 | DRM_DEBUG_ATOMIC("enabling [CRTC:%d]\n", |
| 847 | crtc->base.id); |
Daniel Vetter | 95d6eb3 | 2015-01-22 16:36:25 +0100 | [diff] [blame] | 848 | |
Daniel Vetter | ee0a89c | 2015-01-22 16:36:24 +0100 | [diff] [blame] | 849 | if (funcs->enable) |
| 850 | funcs->enable(crtc); |
| 851 | else |
| 852 | funcs->commit(crtc); |
| 853 | } |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 854 | } |
| 855 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 856 | for_each_connector_in_state(old_state, connector, old_conn_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 857 | const struct drm_encoder_helper_funcs *funcs; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 858 | struct drm_encoder *encoder; |
| 859 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 860 | if (!connector->state->best_encoder) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 861 | continue; |
| 862 | |
Daniel Vetter | 4218a32 | 2015-03-26 22:18:40 +0100 | [diff] [blame] | 863 | if (!connector->state->crtc->state->active || |
Daniel Vetter | 2465ff6 | 2015-06-18 09:58:55 +0200 | [diff] [blame] | 864 | !drm_atomic_crtc_needs_modeset(connector->state->crtc->state)) |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 865 | continue; |
| 866 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 867 | encoder = connector->state->best_encoder; |
| 868 | funcs = encoder->helper_private; |
| 869 | |
Daniel Vetter | 17a38d9 | 2015-02-22 12:24:16 +0100 | [diff] [blame] | 870 | DRM_DEBUG_ATOMIC("enabling [ENCODER:%d:%s]\n", |
| 871 | encoder->base.id, encoder->name); |
Daniel Vetter | 95d6eb3 | 2015-01-22 16:36:25 +0100 | [diff] [blame] | 872 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 873 | /* |
| 874 | * Each encoder has at most one connector (since we always steal |
John Hunter | f98bd3e | 2015-03-17 15:30:26 +0800 | [diff] [blame] | 875 | * it away), so we won't call enable hooks twice. |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 876 | */ |
Archit Taneja | 862e686 | 2015-05-21 11:03:16 +0530 | [diff] [blame] | 877 | drm_bridge_pre_enable(encoder->bridge); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 878 | |
Daniel Vetter | ee0a89c | 2015-01-22 16:36:24 +0100 | [diff] [blame] | 879 | if (funcs->enable) |
| 880 | funcs->enable(encoder); |
| 881 | else |
| 882 | funcs->commit(encoder); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 883 | |
Archit Taneja | 862e686 | 2015-05-21 11:03:16 +0530 | [diff] [blame] | 884 | drm_bridge_enable(encoder->bridge); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 885 | } |
| 886 | } |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 887 | EXPORT_SYMBOL(drm_atomic_helper_commit_modeset_enables); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 888 | |
Daniel Vetter | e2330f0 | 2014-10-29 11:34:56 +0100 | [diff] [blame] | 889 | static void wait_for_fences(struct drm_device *dev, |
| 890 | struct drm_atomic_state *state) |
| 891 | { |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 892 | struct drm_plane *plane; |
| 893 | struct drm_plane_state *plane_state; |
Daniel Vetter | e2330f0 | 2014-10-29 11:34:56 +0100 | [diff] [blame] | 894 | int i; |
| 895 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 896 | for_each_plane_in_state(state, plane, plane_state, i) { |
| 897 | if (!plane->state->fence) |
Daniel Vetter | e2330f0 | 2014-10-29 11:34:56 +0100 | [diff] [blame] | 898 | continue; |
| 899 | |
| 900 | WARN_ON(!plane->state->fb); |
| 901 | |
| 902 | fence_wait(plane->state->fence, false); |
| 903 | fence_put(plane->state->fence); |
| 904 | plane->state->fence = NULL; |
| 905 | } |
| 906 | } |
| 907 | |
Daniel Vetter | ab58e33 | 2014-11-24 20:42:42 +0100 | [diff] [blame] | 908 | static bool framebuffer_changed(struct drm_device *dev, |
| 909 | struct drm_atomic_state *old_state, |
| 910 | struct drm_crtc *crtc) |
| 911 | { |
| 912 | struct drm_plane *plane; |
| 913 | struct drm_plane_state *old_plane_state; |
Daniel Vetter | ab58e33 | 2014-11-24 20:42:42 +0100 | [diff] [blame] | 914 | int i; |
| 915 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 916 | for_each_plane_in_state(old_state, plane, old_plane_state, i) { |
Daniel Vetter | ab58e33 | 2014-11-24 20:42:42 +0100 | [diff] [blame] | 917 | if (plane->state->crtc != crtc && |
| 918 | old_plane_state->crtc != crtc) |
| 919 | continue; |
| 920 | |
| 921 | if (plane->state->fb != old_plane_state->fb) |
| 922 | return true; |
| 923 | } |
| 924 | |
| 925 | return false; |
| 926 | } |
| 927 | |
Rob Clark | 5ee3229 | 2014-11-11 19:38:59 -0500 | [diff] [blame] | 928 | /** |
| 929 | * drm_atomic_helper_wait_for_vblanks - wait for vblank on crtcs |
| 930 | * @dev: DRM device |
| 931 | * @old_state: atomic state object with old state structures |
| 932 | * |
| 933 | * Helper to, after atomic commit, wait for vblanks on all effected |
| 934 | * crtcs (ie. before cleaning up old framebuffers using |
Daniel Vetter | ab58e33 | 2014-11-24 20:42:42 +0100 | [diff] [blame] | 935 | * drm_atomic_helper_cleanup_planes()). It will only wait on crtcs where the |
| 936 | * framebuffers have actually changed to optimize for the legacy cursor and |
| 937 | * plane update use-case. |
Rob Clark | 5ee3229 | 2014-11-11 19:38:59 -0500 | [diff] [blame] | 938 | */ |
| 939 | void |
| 940 | drm_atomic_helper_wait_for_vblanks(struct drm_device *dev, |
| 941 | struct drm_atomic_state *old_state) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 942 | { |
| 943 | struct drm_crtc *crtc; |
| 944 | struct drm_crtc_state *old_crtc_state; |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 945 | int i, ret; |
| 946 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 947 | for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 948 | /* No one cares about the old state, so abuse it for tracking |
| 949 | * and store whether we hold a vblank reference (and should do a |
| 950 | * vblank wait) in the ->enable boolean. */ |
| 951 | old_crtc_state->enable = false; |
| 952 | |
| 953 | if (!crtc->state->enable) |
| 954 | continue; |
| 955 | |
Daniel Vetter | f02ad90 | 2015-01-22 16:36:23 +0100 | [diff] [blame] | 956 | /* Legacy cursor ioctls are completely unsynced, and userspace |
| 957 | * relies on that (by doing tons of cursor updates). */ |
| 958 | if (old_state->legacy_cursor_update) |
| 959 | continue; |
| 960 | |
Daniel Vetter | ab58e33 | 2014-11-24 20:42:42 +0100 | [diff] [blame] | 961 | if (!framebuffer_changed(dev, old_state, crtc)) |
| 962 | continue; |
| 963 | |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 964 | ret = drm_crtc_vblank_get(crtc); |
| 965 | if (ret != 0) |
| 966 | continue; |
| 967 | |
| 968 | old_crtc_state->enable = true; |
| 969 | old_crtc_state->last_vblank_count = drm_vblank_count(dev, i); |
| 970 | } |
| 971 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 972 | for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { |
| 973 | if (!old_crtc_state->enable) |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 974 | continue; |
| 975 | |
| 976 | ret = wait_event_timeout(dev->vblank[i].queue, |
| 977 | old_crtc_state->last_vblank_count != |
| 978 | drm_vblank_count(dev, i), |
| 979 | msecs_to_jiffies(50)); |
| 980 | |
| 981 | drm_crtc_vblank_put(crtc); |
| 982 | } |
| 983 | } |
Rob Clark | 5ee3229 | 2014-11-11 19:38:59 -0500 | [diff] [blame] | 984 | EXPORT_SYMBOL(drm_atomic_helper_wait_for_vblanks); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 985 | |
| 986 | /** |
| 987 | * drm_atomic_helper_commit - commit validated state object |
| 988 | * @dev: DRM device |
| 989 | * @state: the driver state object |
| 990 | * @async: asynchronous commit |
| 991 | * |
| 992 | * This function commits a with drm_atomic_helper_check() pre-validated state |
| 993 | * object. This can still fail when e.g. the framebuffer reservation fails. For |
| 994 | * now this doesn't implement asynchronous commits. |
| 995 | * |
| 996 | * RETURNS |
| 997 | * Zero for success or -errno. |
| 998 | */ |
| 999 | int drm_atomic_helper_commit(struct drm_device *dev, |
| 1000 | struct drm_atomic_state *state, |
| 1001 | bool async) |
| 1002 | { |
| 1003 | int ret; |
| 1004 | |
| 1005 | if (async) |
| 1006 | return -EBUSY; |
| 1007 | |
| 1008 | ret = drm_atomic_helper_prepare_planes(dev, state); |
| 1009 | if (ret) |
| 1010 | return ret; |
| 1011 | |
| 1012 | /* |
| 1013 | * This is the point of no return - everything below never fails except |
| 1014 | * when the hw goes bonghits. Which means we can commit the new state on |
| 1015 | * the software side now. |
| 1016 | */ |
| 1017 | |
| 1018 | drm_atomic_helper_swap_state(dev, state); |
| 1019 | |
| 1020 | /* |
| 1021 | * Everything below can be run asynchronously without the need to grab |
John Hunter | f98bd3e | 2015-03-17 15:30:26 +0800 | [diff] [blame] | 1022 | * any modeset locks at all under one condition: It must be guaranteed |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 1023 | * that the asynchronous work has either been cancelled (if the driver |
| 1024 | * supports it, which at least requires that the framebuffers get |
| 1025 | * cleaned up with drm_atomic_helper_cleanup_planes()) or completed |
| 1026 | * before the new state gets committed on the software side with |
| 1027 | * drm_atomic_helper_swap_state(). |
| 1028 | * |
| 1029 | * This scheme allows new atomic state updates to be prepared and |
| 1030 | * checked in parallel to the asynchronous completion of the previous |
| 1031 | * update. Which is important since compositors need to figure out the |
| 1032 | * composition of the next frame right after having submitted the |
| 1033 | * current layout. |
| 1034 | */ |
| 1035 | |
Daniel Vetter | e2330f0 | 2014-10-29 11:34:56 +0100 | [diff] [blame] | 1036 | wait_for_fences(dev, state); |
| 1037 | |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 1038 | drm_atomic_helper_commit_modeset_disables(dev, state); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 1039 | |
| 1040 | drm_atomic_helper_commit_planes(dev, state); |
| 1041 | |
Daniel Vetter | 1af434a | 2015-02-22 12:24:19 +0100 | [diff] [blame] | 1042 | drm_atomic_helper_commit_modeset_enables(dev, state); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 1043 | |
Rob Clark | 5ee3229 | 2014-11-11 19:38:59 -0500 | [diff] [blame] | 1044 | drm_atomic_helper_wait_for_vblanks(dev, state); |
Daniel Vetter | 623369e | 2014-09-16 17:50:47 +0200 | [diff] [blame] | 1045 | |
| 1046 | drm_atomic_helper_cleanup_planes(dev, state); |
| 1047 | |
| 1048 | drm_atomic_state_free(state); |
| 1049 | |
| 1050 | return 0; |
| 1051 | } |
| 1052 | EXPORT_SYMBOL(drm_atomic_helper_commit); |
| 1053 | |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1054 | /** |
Daniel Vetter | e8c833a | 2014-07-27 18:30:19 +0200 | [diff] [blame] | 1055 | * DOC: implementing async commit |
| 1056 | * |
| 1057 | * For now the atomic helpers don't support async commit directly. If there is |
| 1058 | * real need it could be added though, using the dma-buf fence infrastructure |
| 1059 | * for generic synchronization with outstanding rendering. |
| 1060 | * |
| 1061 | * For now drivers have to implement async commit themselves, with the following |
| 1062 | * sequence being the recommended one: |
| 1063 | * |
| 1064 | * 1. Run drm_atomic_helper_prepare_planes() first. This is the only function |
| 1065 | * which commit needs to call which can fail, so we want to run it first and |
| 1066 | * synchronously. |
| 1067 | * |
| 1068 | * 2. Synchronize with any outstanding asynchronous commit worker threads which |
| 1069 | * might be affected the new state update. This can be done by either cancelling |
| 1070 | * or flushing the work items, depending upon whether the driver can deal with |
| 1071 | * cancelled updates. Note that it is important to ensure that the framebuffer |
| 1072 | * cleanup is still done when cancelling. |
| 1073 | * |
| 1074 | * For sufficient parallelism it is recommended to have a work item per crtc |
| 1075 | * (for updates which don't touch global state) and a global one. Then we only |
| 1076 | * need to synchronize with the crtc work items for changed crtcs and the global |
| 1077 | * work item, which allows nice concurrent updates on disjoint sets of crtcs. |
| 1078 | * |
| 1079 | * 3. The software state is updated synchronously with |
| 1080 | * drm_atomic_helper_swap_state. Doing this under the protection of all modeset |
| 1081 | * locks means concurrent callers never see inconsistent state. And doing this |
| 1082 | * while it's guaranteed that no relevant async worker runs means that async |
| 1083 | * workers do not need grab any locks. Actually they must not grab locks, for |
| 1084 | * otherwise the work flushing will deadlock. |
| 1085 | * |
| 1086 | * 4. Schedule a work item to do all subsequent steps, using the split-out |
| 1087 | * commit helpers: a) pre-plane commit b) plane commit c) post-plane commit and |
| 1088 | * then cleaning up the framebuffers after the old framebuffer is no longer |
| 1089 | * being displayed. |
| 1090 | */ |
| 1091 | |
| 1092 | /** |
Daniel Vetter | 2e3afd4 | 2015-02-26 14:17:38 +0100 | [diff] [blame] | 1093 | * drm_atomic_helper_prepare_planes - prepare plane resources before commit |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1094 | * @dev: DRM device |
Daniel Vetter | 2e3afd4 | 2015-02-26 14:17:38 +0100 | [diff] [blame] | 1095 | * @state: atomic state object with new state structures |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1096 | * |
| 1097 | * This function prepares plane state, specifically framebuffers, for the new |
| 1098 | * configuration. If any failure is encountered this function will call |
| 1099 | * ->cleanup_fb on any already successfully prepared framebuffer. |
| 1100 | * |
| 1101 | * Returns: |
| 1102 | * 0 on success, negative error code on failure. |
| 1103 | */ |
| 1104 | int drm_atomic_helper_prepare_planes(struct drm_device *dev, |
| 1105 | struct drm_atomic_state *state) |
| 1106 | { |
| 1107 | int nplanes = dev->mode_config.num_total_plane; |
| 1108 | int ret, i; |
| 1109 | |
| 1110 | for (i = 0; i < nplanes; i++) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 1111 | const struct drm_plane_helper_funcs *funcs; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1112 | struct drm_plane *plane = state->planes[i]; |
Tvrtko Ursulin | d136dfe | 2015-03-03 14:22:31 +0000 | [diff] [blame] | 1113 | struct drm_plane_state *plane_state = state->plane_states[i]; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1114 | struct drm_framebuffer *fb; |
| 1115 | |
| 1116 | if (!plane) |
| 1117 | continue; |
| 1118 | |
| 1119 | funcs = plane->helper_private; |
| 1120 | |
Tvrtko Ursulin | d136dfe | 2015-03-03 14:22:31 +0000 | [diff] [blame] | 1121 | fb = plane_state->fb; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1122 | |
| 1123 | if (fb && funcs->prepare_fb) { |
Tvrtko Ursulin | d136dfe | 2015-03-03 14:22:31 +0000 | [diff] [blame] | 1124 | ret = funcs->prepare_fb(plane, fb, plane_state); |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1125 | if (ret) |
| 1126 | goto fail; |
| 1127 | } |
| 1128 | } |
| 1129 | |
| 1130 | return 0; |
| 1131 | |
| 1132 | fail: |
| 1133 | for (i--; i >= 0; i--) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 1134 | const struct drm_plane_helper_funcs *funcs; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1135 | struct drm_plane *plane = state->planes[i]; |
Tvrtko Ursulin | d136dfe | 2015-03-03 14:22:31 +0000 | [diff] [blame] | 1136 | struct drm_plane_state *plane_state = state->plane_states[i]; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1137 | struct drm_framebuffer *fb; |
| 1138 | |
| 1139 | if (!plane) |
| 1140 | continue; |
| 1141 | |
| 1142 | funcs = plane->helper_private; |
| 1143 | |
| 1144 | fb = state->plane_states[i]->fb; |
| 1145 | |
| 1146 | if (fb && funcs->cleanup_fb) |
Tvrtko Ursulin | d136dfe | 2015-03-03 14:22:31 +0000 | [diff] [blame] | 1147 | funcs->cleanup_fb(plane, fb, plane_state); |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1148 | |
| 1149 | } |
| 1150 | |
| 1151 | return ret; |
| 1152 | } |
| 1153 | EXPORT_SYMBOL(drm_atomic_helper_prepare_planes); |
| 1154 | |
| 1155 | /** |
| 1156 | * drm_atomic_helper_commit_planes - commit plane state |
| 1157 | * @dev: DRM device |
Daniel Vetter | b0fcfc8 | 2014-11-19 18:38:11 +0100 | [diff] [blame] | 1158 | * @old_state: atomic state object with old state structures |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1159 | * |
| 1160 | * This function commits the new plane state using the plane and atomic helper |
| 1161 | * functions for planes and crtcs. It assumes that the atomic state has already |
| 1162 | * been pushed into the relevant object state pointers, since this step can no |
| 1163 | * longer fail. |
| 1164 | * |
Daniel Vetter | b0fcfc8 | 2014-11-19 18:38:11 +0100 | [diff] [blame] | 1165 | * It still requires the global state object @old_state to know which planes and |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1166 | * crtcs need to be updated though. |
Maarten Lankhorst | de28d02 | 2015-05-19 16:41:01 +0200 | [diff] [blame] | 1167 | * |
| 1168 | * Note that this function does all plane updates across all CRTCs in one step. |
| 1169 | * If the hardware can't support this approach look at |
| 1170 | * drm_atomic_helper_commit_planes_on_crtc() instead. |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1171 | */ |
| 1172 | void drm_atomic_helper_commit_planes(struct drm_device *dev, |
Daniel Vetter | b0fcfc8 | 2014-11-19 18:38:11 +0100 | [diff] [blame] | 1173 | struct drm_atomic_state *old_state) |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1174 | { |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1175 | struct drm_crtc *crtc; |
| 1176 | struct drm_crtc_state *old_crtc_state; |
| 1177 | struct drm_plane *plane; |
| 1178 | struct drm_plane_state *old_plane_state; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1179 | int i; |
| 1180 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1181 | for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 1182 | const struct drm_crtc_helper_funcs *funcs; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1183 | |
| 1184 | funcs = crtc->helper_private; |
| 1185 | |
| 1186 | if (!funcs || !funcs->atomic_begin) |
| 1187 | continue; |
| 1188 | |
Maarten Lankhorst | 613d2b2 | 2015-07-21 13:28:58 +0200 | [diff] [blame] | 1189 | funcs->atomic_begin(crtc, old_crtc_state); |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1190 | } |
| 1191 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1192 | for_each_plane_in_state(old_state, plane, old_plane_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 1193 | const struct drm_plane_helper_funcs *funcs; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1194 | |
| 1195 | funcs = plane->helper_private; |
| 1196 | |
Thierry Reding | 3cad4b6 | 2014-11-25 13:05:12 +0100 | [diff] [blame] | 1197 | if (!funcs) |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1198 | continue; |
| 1199 | |
Thierry Reding | 407b8bd | 2014-11-20 12:05:50 +0100 | [diff] [blame] | 1200 | /* |
| 1201 | * Special-case disabling the plane if drivers support it. |
| 1202 | */ |
| 1203 | if (drm_atomic_plane_disabling(plane, old_plane_state) && |
| 1204 | funcs->atomic_disable) |
| 1205 | funcs->atomic_disable(plane, old_plane_state); |
Daniel Vetter | 475d231 | 2015-04-10 16:22:39 +0200 | [diff] [blame] | 1206 | else if (plane->state->crtc || |
| 1207 | drm_atomic_plane_disabling(plane, old_plane_state)) |
Thierry Reding | 407b8bd | 2014-11-20 12:05:50 +0100 | [diff] [blame] | 1208 | funcs->atomic_update(plane, old_plane_state); |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1209 | } |
| 1210 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1211 | for_each_crtc_in_state(old_state, crtc, old_crtc_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 1212 | const struct drm_crtc_helper_funcs *funcs; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1213 | |
| 1214 | funcs = crtc->helper_private; |
| 1215 | |
| 1216 | if (!funcs || !funcs->atomic_flush) |
| 1217 | continue; |
| 1218 | |
Maarten Lankhorst | 613d2b2 | 2015-07-21 13:28:58 +0200 | [diff] [blame] | 1219 | funcs->atomic_flush(crtc, old_crtc_state); |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1220 | } |
| 1221 | } |
| 1222 | EXPORT_SYMBOL(drm_atomic_helper_commit_planes); |
| 1223 | |
| 1224 | /** |
Maarten Lankhorst | de28d02 | 2015-05-19 16:41:01 +0200 | [diff] [blame] | 1225 | * drm_atomic_helper_commit_planes_on_crtc - commit plane state for a crtc |
| 1226 | * @old_crtc_state: atomic state object with the old crtc state |
| 1227 | * |
| 1228 | * This function commits the new plane state using the plane and atomic helper |
| 1229 | * functions for planes on the specific crtc. It assumes that the atomic state |
| 1230 | * has already been pushed into the relevant object state pointers, since this |
| 1231 | * step can no longer fail. |
| 1232 | * |
| 1233 | * This function is useful when plane updates should be done crtc-by-crtc |
| 1234 | * instead of one global step like drm_atomic_helper_commit_planes() does. |
| 1235 | * |
| 1236 | * This function can only be savely used when planes are not allowed to move |
| 1237 | * between different CRTCs because this function doesn't handle inter-CRTC |
| 1238 | * depencies. Callers need to ensure that either no such depencies exist, |
| 1239 | * resolve them through ordering of commit calls or through some other means. |
| 1240 | */ |
| 1241 | void |
| 1242 | drm_atomic_helper_commit_planes_on_crtc(struct drm_crtc_state *old_crtc_state) |
| 1243 | { |
| 1244 | const struct drm_crtc_helper_funcs *crtc_funcs; |
| 1245 | struct drm_crtc *crtc = old_crtc_state->crtc; |
| 1246 | struct drm_atomic_state *old_state = old_crtc_state->state; |
| 1247 | struct drm_plane *plane; |
| 1248 | unsigned plane_mask; |
| 1249 | |
| 1250 | plane_mask = old_crtc_state->plane_mask; |
| 1251 | plane_mask |= crtc->state->plane_mask; |
| 1252 | |
| 1253 | crtc_funcs = crtc->helper_private; |
| 1254 | if (crtc_funcs && crtc_funcs->atomic_begin) |
Maarten Lankhorst | 613d2b2 | 2015-07-21 13:28:58 +0200 | [diff] [blame] | 1255 | crtc_funcs->atomic_begin(crtc, old_crtc_state); |
Maarten Lankhorst | de28d02 | 2015-05-19 16:41:01 +0200 | [diff] [blame] | 1256 | |
| 1257 | drm_for_each_plane_mask(plane, crtc->dev, plane_mask) { |
| 1258 | struct drm_plane_state *old_plane_state = |
| 1259 | drm_atomic_get_existing_plane_state(old_state, plane); |
| 1260 | const struct drm_plane_helper_funcs *plane_funcs; |
| 1261 | |
| 1262 | plane_funcs = plane->helper_private; |
| 1263 | |
| 1264 | if (!old_plane_state || !plane_funcs) |
| 1265 | continue; |
| 1266 | |
| 1267 | WARN_ON(plane->state->crtc && plane->state->crtc != crtc); |
| 1268 | |
| 1269 | if (drm_atomic_plane_disabling(plane, old_plane_state) && |
| 1270 | plane_funcs->atomic_disable) |
| 1271 | plane_funcs->atomic_disable(plane, old_plane_state); |
| 1272 | else if (plane->state->crtc || |
| 1273 | drm_atomic_plane_disabling(plane, old_plane_state)) |
| 1274 | plane_funcs->atomic_update(plane, old_plane_state); |
| 1275 | } |
| 1276 | |
| 1277 | if (crtc_funcs && crtc_funcs->atomic_flush) |
Maarten Lankhorst | 613d2b2 | 2015-07-21 13:28:58 +0200 | [diff] [blame] | 1278 | crtc_funcs->atomic_flush(crtc, old_crtc_state); |
Maarten Lankhorst | de28d02 | 2015-05-19 16:41:01 +0200 | [diff] [blame] | 1279 | } |
| 1280 | EXPORT_SYMBOL(drm_atomic_helper_commit_planes_on_crtc); |
| 1281 | |
| 1282 | /** |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1283 | * drm_atomic_helper_cleanup_planes - cleanup plane resources after commit |
| 1284 | * @dev: DRM device |
| 1285 | * @old_state: atomic state object with old state structures |
| 1286 | * |
| 1287 | * This function cleans up plane state, specifically framebuffers, from the old |
| 1288 | * configuration. Hence the old configuration must be perserved in @old_state to |
| 1289 | * be able to call this function. |
| 1290 | * |
| 1291 | * This function must also be called on the new state when the atomic update |
| 1292 | * fails at any point after calling drm_atomic_helper_prepare_planes(). |
| 1293 | */ |
| 1294 | void drm_atomic_helper_cleanup_planes(struct drm_device *dev, |
| 1295 | struct drm_atomic_state *old_state) |
| 1296 | { |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1297 | struct drm_plane *plane; |
| 1298 | struct drm_plane_state *plane_state; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1299 | int i; |
| 1300 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1301 | for_each_plane_in_state(old_state, plane, plane_state, i) { |
Ville Syrjälä | b5ceff2 | 2015-03-10 14:35:20 +0200 | [diff] [blame] | 1302 | const struct drm_plane_helper_funcs *funcs; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1303 | struct drm_framebuffer *old_fb; |
| 1304 | |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1305 | funcs = plane->helper_private; |
| 1306 | |
Tvrtko Ursulin | d136dfe | 2015-03-03 14:22:31 +0000 | [diff] [blame] | 1307 | old_fb = plane_state->fb; |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1308 | |
| 1309 | if (old_fb && funcs->cleanup_fb) |
Tvrtko Ursulin | d136dfe | 2015-03-03 14:22:31 +0000 | [diff] [blame] | 1310 | funcs->cleanup_fb(plane, old_fb, plane_state); |
Daniel Vetter | c2fcd27 | 2014-11-05 00:14:14 +0100 | [diff] [blame] | 1311 | } |
| 1312 | } |
| 1313 | EXPORT_SYMBOL(drm_atomic_helper_cleanup_planes); |
| 1314 | |
| 1315 | /** |
| 1316 | * drm_atomic_helper_swap_state - store atomic state into current sw state |
| 1317 | * @dev: DRM device |
| 1318 | * @state: atomic state |
| 1319 | * |
| 1320 | * This function stores the atomic state into the current state pointers in all |
| 1321 | * driver objects. It should be called after all failing steps have been done |
| 1322 | * and succeeded, but before the actual hardware state is committed. |
| 1323 | * |
| 1324 | * For cleanup and error recovery the current state for all changed objects will |
| 1325 | * be swaped into @state. |
| 1326 | * |
| 1327 | * With that sequence it fits perfectly into the plane prepare/cleanup sequence: |
| 1328 | * |
| 1329 | * 1. Call drm_atomic_helper_prepare_planes() with the staged atomic state. |
| 1330 | * |
| 1331 | * 2. Do any other steps that might fail. |
| 1332 | * |
| 1333 | * 3. Put the staged state into the current state pointers with this function. |
| 1334 | * |
| 1335 | * 4. Actually commit the hardware state. |
| 1336 | * |
| 1337 | * 5. Call drm_atomic_helper_cleanup_planes with @state, which since step 3 |
| 1338 | * contains the old state. Also do any other cleanup required with that state. |
| 1339 | */ |
| 1340 | void drm_atomic_helper_swap_state(struct drm_device *dev, |
| 1341 | struct drm_atomic_state *state) |
| 1342 | { |
| 1343 | int i; |
| 1344 | |
| 1345 | for (i = 0; i < dev->mode_config.num_connector; i++) { |
| 1346 | struct drm_connector *connector = state->connectors[i]; |
| 1347 | |
| 1348 | if (!connector) |
| 1349 | continue; |
| 1350 | |
| 1351 | connector->state->state = state; |
| 1352 | swap(state->connector_states[i], connector->state); |
| 1353 | connector->state->state = NULL; |
| 1354 | } |
| 1355 | |
| 1356 | for (i = 0; i < dev->mode_config.num_crtc; i++) { |
| 1357 | struct drm_crtc *crtc = state->crtcs[i]; |
| 1358 | |
| 1359 | if (!crtc) |
| 1360 | continue; |
| 1361 | |
| 1362 | crtc->state->state = state; |
| 1363 | swap(state->crtc_states[i], crtc->state); |
| 1364 | crtc->state->state = NULL; |
| 1365 | } |
| 1366 | |
| 1367 | for (i = 0; i < dev->mode_config.num_total_plane; i++) { |
| 1368 | struct drm_plane *plane = state->planes[i]; |
| 1369 | |
| 1370 | if (!plane) |
| 1371 | continue; |
| 1372 | |
| 1373 | plane->state->state = state; |
| 1374 | swap(state->plane_states[i], plane->state); |
| 1375 | plane->state->state = NULL; |
| 1376 | } |
| 1377 | } |
| 1378 | EXPORT_SYMBOL(drm_atomic_helper_swap_state); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1379 | |
| 1380 | /** |
| 1381 | * drm_atomic_helper_update_plane - Helper for primary plane update using atomic |
| 1382 | * @plane: plane object to update |
| 1383 | * @crtc: owning CRTC of owning plane |
| 1384 | * @fb: framebuffer to flip onto plane |
| 1385 | * @crtc_x: x offset of primary plane on crtc |
| 1386 | * @crtc_y: y offset of primary plane on crtc |
| 1387 | * @crtc_w: width of primary plane rectangle on crtc |
| 1388 | * @crtc_h: height of primary plane rectangle on crtc |
| 1389 | * @src_x: x offset of @fb for panning |
| 1390 | * @src_y: y offset of @fb for panning |
| 1391 | * @src_w: width of source rectangle in @fb |
| 1392 | * @src_h: height of source rectangle in @fb |
| 1393 | * |
| 1394 | * Provides a default plane update handler using the atomic driver interface. |
| 1395 | * |
| 1396 | * RETURNS: |
| 1397 | * Zero on success, error code on failure |
| 1398 | */ |
| 1399 | int drm_atomic_helper_update_plane(struct drm_plane *plane, |
| 1400 | struct drm_crtc *crtc, |
| 1401 | struct drm_framebuffer *fb, |
| 1402 | int crtc_x, int crtc_y, |
| 1403 | unsigned int crtc_w, unsigned int crtc_h, |
| 1404 | uint32_t src_x, uint32_t src_y, |
| 1405 | uint32_t src_w, uint32_t src_h) |
| 1406 | { |
| 1407 | struct drm_atomic_state *state; |
| 1408 | struct drm_plane_state *plane_state; |
| 1409 | int ret = 0; |
| 1410 | |
| 1411 | state = drm_atomic_state_alloc(plane->dev); |
| 1412 | if (!state) |
| 1413 | return -ENOMEM; |
| 1414 | |
| 1415 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); |
| 1416 | retry: |
| 1417 | plane_state = drm_atomic_get_plane_state(state, plane); |
| 1418 | if (IS_ERR(plane_state)) { |
| 1419 | ret = PTR_ERR(plane_state); |
| 1420 | goto fail; |
| 1421 | } |
| 1422 | |
Daniel Vetter | 07cc0ef | 2014-11-27 15:49:39 +0100 | [diff] [blame] | 1423 | ret = drm_atomic_set_crtc_for_plane(plane_state, crtc); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1424 | if (ret != 0) |
| 1425 | goto fail; |
Daniel Vetter | 321ebf0 | 2014-11-04 22:57:27 +0100 | [diff] [blame] | 1426 | drm_atomic_set_fb_for_plane(plane_state, fb); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1427 | plane_state->crtc_x = crtc_x; |
| 1428 | plane_state->crtc_y = crtc_y; |
| 1429 | plane_state->crtc_h = crtc_h; |
| 1430 | plane_state->crtc_w = crtc_w; |
| 1431 | plane_state->src_x = src_x; |
| 1432 | plane_state->src_y = src_y; |
| 1433 | plane_state->src_h = src_h; |
| 1434 | plane_state->src_w = src_w; |
| 1435 | |
Daniel Vetter | 3671c58 | 2015-05-04 15:40:52 +0200 | [diff] [blame] | 1436 | if (plane == crtc->cursor) |
| 1437 | state->legacy_cursor_update = true; |
| 1438 | |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1439 | ret = drm_atomic_commit(state); |
| 1440 | if (ret != 0) |
| 1441 | goto fail; |
| 1442 | |
| 1443 | /* Driver takes ownership of state on successful commit. */ |
| 1444 | return 0; |
| 1445 | fail: |
| 1446 | if (ret == -EDEADLK) |
| 1447 | goto backoff; |
| 1448 | |
| 1449 | drm_atomic_state_free(state); |
| 1450 | |
| 1451 | return ret; |
| 1452 | backoff: |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1453 | drm_atomic_state_clear(state); |
Daniel Vetter | 6f75cea | 2014-11-19 18:38:07 +0100 | [diff] [blame] | 1454 | drm_atomic_legacy_backoff(state); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1455 | |
| 1456 | /* |
| 1457 | * Someone might have exchanged the framebuffer while we dropped locks |
| 1458 | * in the backoff code. We need to fix up the fb refcount tracking the |
| 1459 | * core does for us. |
| 1460 | */ |
| 1461 | plane->old_fb = plane->fb; |
| 1462 | |
| 1463 | goto retry; |
| 1464 | } |
| 1465 | EXPORT_SYMBOL(drm_atomic_helper_update_plane); |
| 1466 | |
| 1467 | /** |
| 1468 | * drm_atomic_helper_disable_plane - Helper for primary plane disable using * atomic |
| 1469 | * @plane: plane to disable |
| 1470 | * |
| 1471 | * Provides a default plane disable handler using the atomic driver interface. |
| 1472 | * |
| 1473 | * RETURNS: |
| 1474 | * Zero on success, error code on failure |
| 1475 | */ |
| 1476 | int drm_atomic_helper_disable_plane(struct drm_plane *plane) |
| 1477 | { |
| 1478 | struct drm_atomic_state *state; |
| 1479 | struct drm_plane_state *plane_state; |
| 1480 | int ret = 0; |
| 1481 | |
Jasper St. Pierre | aa54e2e | 2014-11-20 19:59:15 -0800 | [diff] [blame] | 1482 | /* |
| 1483 | * FIXME: Without plane->crtc set we can't get at the implicit legacy |
| 1484 | * acquire context. The real fix will be to wire the acquire ctx through |
| 1485 | * everywhere we need it, but meanwhile prevent chaos by just skipping |
| 1486 | * this noop. The critical case is the cursor ioctls which a) only grab |
| 1487 | * crtc/cursor-plane locks (so we need the crtc to get at the right |
| 1488 | * acquire context) and b) can try to disable the plane multiple times. |
| 1489 | */ |
| 1490 | if (!plane->crtc) |
| 1491 | return 0; |
| 1492 | |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1493 | state = drm_atomic_state_alloc(plane->dev); |
| 1494 | if (!state) |
| 1495 | return -ENOMEM; |
| 1496 | |
| 1497 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(plane->crtc); |
| 1498 | retry: |
| 1499 | plane_state = drm_atomic_get_plane_state(state, plane); |
| 1500 | if (IS_ERR(plane_state)) { |
| 1501 | ret = PTR_ERR(plane_state); |
| 1502 | goto fail; |
| 1503 | } |
| 1504 | |
Daniel Vetter | 07cc0ef | 2014-11-27 15:49:39 +0100 | [diff] [blame] | 1505 | ret = drm_atomic_set_crtc_for_plane(plane_state, NULL); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1506 | if (ret != 0) |
| 1507 | goto fail; |
Daniel Vetter | 321ebf0 | 2014-11-04 22:57:27 +0100 | [diff] [blame] | 1508 | drm_atomic_set_fb_for_plane(plane_state, NULL); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1509 | plane_state->crtc_x = 0; |
| 1510 | plane_state->crtc_y = 0; |
| 1511 | plane_state->crtc_h = 0; |
| 1512 | plane_state->crtc_w = 0; |
| 1513 | plane_state->src_x = 0; |
| 1514 | plane_state->src_y = 0; |
| 1515 | plane_state->src_h = 0; |
| 1516 | plane_state->src_w = 0; |
| 1517 | |
Daniel Vetter | f02ad90 | 2015-01-22 16:36:23 +0100 | [diff] [blame] | 1518 | if (plane == plane->crtc->cursor) |
| 1519 | state->legacy_cursor_update = true; |
| 1520 | |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1521 | ret = drm_atomic_commit(state); |
| 1522 | if (ret != 0) |
| 1523 | goto fail; |
| 1524 | |
| 1525 | /* Driver takes ownership of state on successful commit. */ |
| 1526 | return 0; |
| 1527 | fail: |
| 1528 | if (ret == -EDEADLK) |
| 1529 | goto backoff; |
| 1530 | |
| 1531 | drm_atomic_state_free(state); |
| 1532 | |
| 1533 | return ret; |
| 1534 | backoff: |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1535 | drm_atomic_state_clear(state); |
Daniel Vetter | 6f75cea | 2014-11-19 18:38:07 +0100 | [diff] [blame] | 1536 | drm_atomic_legacy_backoff(state); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1537 | |
| 1538 | /* |
| 1539 | * Someone might have exchanged the framebuffer while we dropped locks |
| 1540 | * in the backoff code. We need to fix up the fb refcount tracking the |
| 1541 | * core does for us. |
| 1542 | */ |
| 1543 | plane->old_fb = plane->fb; |
| 1544 | |
| 1545 | goto retry; |
| 1546 | } |
| 1547 | EXPORT_SYMBOL(drm_atomic_helper_disable_plane); |
| 1548 | |
| 1549 | static int update_output_state(struct drm_atomic_state *state, |
| 1550 | struct drm_mode_set *set) |
| 1551 | { |
| 1552 | struct drm_device *dev = set->crtc->dev; |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1553 | struct drm_crtc *crtc; |
| 1554 | struct drm_crtc_state *crtc_state; |
| 1555 | struct drm_connector *connector; |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1556 | struct drm_connector_state *conn_state; |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1557 | int ret, i, j; |
| 1558 | |
| 1559 | ret = drm_modeset_lock(&dev->mode_config.connection_mutex, |
| 1560 | state->acquire_ctx); |
| 1561 | if (ret) |
| 1562 | return ret; |
| 1563 | |
| 1564 | /* First grab all affected connector/crtc states. */ |
| 1565 | for (i = 0; i < set->num_connectors; i++) { |
| 1566 | conn_state = drm_atomic_get_connector_state(state, |
| 1567 | set->connectors[i]); |
| 1568 | if (IS_ERR(conn_state)) |
| 1569 | return PTR_ERR(conn_state); |
| 1570 | } |
| 1571 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1572 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1573 | ret = drm_atomic_add_affected_connectors(state, crtc); |
| 1574 | if (ret) |
| 1575 | return ret; |
| 1576 | } |
| 1577 | |
| 1578 | /* Then recompute connector->crtc links and crtc enabling state. */ |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1579 | for_each_connector_in_state(state, connector, conn_state, i) { |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1580 | if (conn_state->crtc == set->crtc) { |
| 1581 | ret = drm_atomic_set_crtc_for_connector(conn_state, |
| 1582 | NULL); |
| 1583 | if (ret) |
| 1584 | return ret; |
| 1585 | } |
| 1586 | |
| 1587 | for (j = 0; j < set->num_connectors; j++) { |
| 1588 | if (set->connectors[j] == connector) { |
| 1589 | ret = drm_atomic_set_crtc_for_connector(conn_state, |
| 1590 | set->crtc); |
| 1591 | if (ret) |
| 1592 | return ret; |
| 1593 | break; |
| 1594 | } |
| 1595 | } |
| 1596 | } |
| 1597 | |
Ander Conselvan de Oliveira | df63b99 | 2015-04-10 14:58:39 +0300 | [diff] [blame] | 1598 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1599 | /* Don't update ->enable for the CRTC in the set_config request, |
| 1600 | * since a mismatch would indicate a bug in the upper layers. |
| 1601 | * The actual modeset code later on will catch any |
| 1602 | * inconsistencies here. */ |
| 1603 | if (crtc == set->crtc) |
| 1604 | continue; |
| 1605 | |
Laurent Pinchart | c30f55a | 2015-06-22 13:37:46 +0300 | [diff] [blame] | 1606 | if (!drm_atomic_connectors_for_crtc(state, crtc)) { |
| 1607 | ret = drm_atomic_set_mode_prop_for_crtc(crtc_state, |
| 1608 | NULL); |
| 1609 | if (ret < 0) |
| 1610 | return ret; |
| 1611 | |
Maarten Lankhorst | 9b5edbf | 2015-06-01 08:59:53 +0200 | [diff] [blame] | 1612 | crtc_state->active = false; |
Laurent Pinchart | c30f55a | 2015-06-22 13:37:46 +0300 | [diff] [blame] | 1613 | } |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1614 | } |
| 1615 | |
| 1616 | return 0; |
| 1617 | } |
| 1618 | |
| 1619 | /** |
| 1620 | * drm_atomic_helper_set_config - set a new config from userspace |
| 1621 | * @set: mode set configuration |
| 1622 | * |
| 1623 | * Provides a default crtc set_config handler using the atomic driver interface. |
| 1624 | * |
| 1625 | * Returns: |
| 1626 | * Returns 0 on success, negative errno numbers on failure. |
| 1627 | */ |
| 1628 | int drm_atomic_helper_set_config(struct drm_mode_set *set) |
| 1629 | { |
| 1630 | struct drm_atomic_state *state; |
| 1631 | struct drm_crtc *crtc = set->crtc; |
| 1632 | struct drm_crtc_state *crtc_state; |
| 1633 | struct drm_plane_state *primary_state; |
| 1634 | int ret = 0; |
| 1635 | |
| 1636 | state = drm_atomic_state_alloc(crtc->dev); |
| 1637 | if (!state) |
| 1638 | return -ENOMEM; |
| 1639 | |
| 1640 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); |
| 1641 | retry: |
| 1642 | crtc_state = drm_atomic_get_crtc_state(state, crtc); |
| 1643 | if (IS_ERR(crtc_state)) { |
| 1644 | ret = PTR_ERR(crtc_state); |
| 1645 | goto fail; |
| 1646 | } |
| 1647 | |
Rob Clark | e5b5341 | 2014-11-26 18:58:04 -0500 | [diff] [blame] | 1648 | primary_state = drm_atomic_get_plane_state(state, crtc->primary); |
| 1649 | if (IS_ERR(primary_state)) { |
| 1650 | ret = PTR_ERR(primary_state); |
| 1651 | goto fail; |
| 1652 | } |
| 1653 | |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1654 | if (!set->mode) { |
| 1655 | WARN_ON(set->fb); |
| 1656 | WARN_ON(set->num_connectors); |
| 1657 | |
Daniel Stone | 819364d | 2015-05-26 14:36:48 +0100 | [diff] [blame] | 1658 | ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL); |
| 1659 | if (ret != 0) |
| 1660 | goto fail; |
| 1661 | |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 1662 | crtc_state->active = false; |
Rob Clark | e5b5341 | 2014-11-26 18:58:04 -0500 | [diff] [blame] | 1663 | |
Daniel Vetter | 07cc0ef | 2014-11-27 15:49:39 +0100 | [diff] [blame] | 1664 | ret = drm_atomic_set_crtc_for_plane(primary_state, NULL); |
Rob Clark | e5b5341 | 2014-11-26 18:58:04 -0500 | [diff] [blame] | 1665 | if (ret != 0) |
| 1666 | goto fail; |
| 1667 | |
| 1668 | drm_atomic_set_fb_for_plane(primary_state, NULL); |
| 1669 | |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1670 | goto commit; |
| 1671 | } |
| 1672 | |
| 1673 | WARN_ON(!set->fb); |
| 1674 | WARN_ON(!set->num_connectors); |
| 1675 | |
Daniel Stone | 819364d | 2015-05-26 14:36:48 +0100 | [diff] [blame] | 1676 | ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode); |
| 1677 | if (ret != 0) |
| 1678 | goto fail; |
| 1679 | |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 1680 | crtc_state->active = true; |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1681 | |
Daniel Vetter | 07cc0ef | 2014-11-27 15:49:39 +0100 | [diff] [blame] | 1682 | ret = drm_atomic_set_crtc_for_plane(primary_state, crtc); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1683 | if (ret != 0) |
| 1684 | goto fail; |
Daniel Vetter | 321ebf0 | 2014-11-04 22:57:27 +0100 | [diff] [blame] | 1685 | drm_atomic_set_fb_for_plane(primary_state, set->fb); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1686 | primary_state->crtc_x = 0; |
| 1687 | primary_state->crtc_y = 0; |
| 1688 | primary_state->crtc_h = set->mode->vdisplay; |
| 1689 | primary_state->crtc_w = set->mode->hdisplay; |
| 1690 | primary_state->src_x = set->x << 16; |
| 1691 | primary_state->src_y = set->y << 16; |
| 1692 | primary_state->src_h = set->mode->vdisplay << 16; |
| 1693 | primary_state->src_w = set->mode->hdisplay << 16; |
| 1694 | |
| 1695 | commit: |
| 1696 | ret = update_output_state(state, set); |
| 1697 | if (ret) |
| 1698 | goto fail; |
| 1699 | |
| 1700 | ret = drm_atomic_commit(state); |
| 1701 | if (ret != 0) |
| 1702 | goto fail; |
| 1703 | |
| 1704 | /* Driver takes ownership of state on successful commit. */ |
| 1705 | return 0; |
| 1706 | fail: |
| 1707 | if (ret == -EDEADLK) |
| 1708 | goto backoff; |
| 1709 | |
| 1710 | drm_atomic_state_free(state); |
| 1711 | |
| 1712 | return ret; |
| 1713 | backoff: |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1714 | drm_atomic_state_clear(state); |
Daniel Vetter | 6f75cea | 2014-11-19 18:38:07 +0100 | [diff] [blame] | 1715 | drm_atomic_legacy_backoff(state); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1716 | |
| 1717 | /* |
| 1718 | * Someone might have exchanged the framebuffer while we dropped locks |
| 1719 | * in the backoff code. We need to fix up the fb refcount tracking the |
| 1720 | * core does for us. |
| 1721 | */ |
| 1722 | crtc->primary->old_fb = crtc->primary->fb; |
| 1723 | |
| 1724 | goto retry; |
| 1725 | } |
| 1726 | EXPORT_SYMBOL(drm_atomic_helper_set_config); |
| 1727 | |
| 1728 | /** |
Laurent Pinchart | 7f50002 | 2015-02-23 02:50:23 +0200 | [diff] [blame] | 1729 | * drm_atomic_helper_crtc_set_property - helper for crtc properties |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1730 | * @crtc: DRM crtc |
| 1731 | * @property: DRM property |
| 1732 | * @val: value of property |
| 1733 | * |
Laurent Pinchart | 7f50002 | 2015-02-23 02:50:23 +0200 | [diff] [blame] | 1734 | * Provides a default crtc set_property handler using the atomic driver |
| 1735 | * interface. |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1736 | * |
| 1737 | * RETURNS: |
| 1738 | * Zero on success, error code on failure |
| 1739 | */ |
| 1740 | int |
| 1741 | drm_atomic_helper_crtc_set_property(struct drm_crtc *crtc, |
| 1742 | struct drm_property *property, |
| 1743 | uint64_t val) |
| 1744 | { |
| 1745 | struct drm_atomic_state *state; |
| 1746 | struct drm_crtc_state *crtc_state; |
| 1747 | int ret = 0; |
| 1748 | |
| 1749 | state = drm_atomic_state_alloc(crtc->dev); |
| 1750 | if (!state) |
| 1751 | return -ENOMEM; |
| 1752 | |
| 1753 | /* ->set_property is always called with all locks held. */ |
| 1754 | state->acquire_ctx = crtc->dev->mode_config.acquire_ctx; |
| 1755 | retry: |
| 1756 | crtc_state = drm_atomic_get_crtc_state(state, crtc); |
| 1757 | if (IS_ERR(crtc_state)) { |
| 1758 | ret = PTR_ERR(crtc_state); |
| 1759 | goto fail; |
| 1760 | } |
| 1761 | |
Rob Clark | 40ecc69 | 2014-12-18 16:01:46 -0500 | [diff] [blame] | 1762 | ret = drm_atomic_crtc_set_property(crtc, crtc_state, |
| 1763 | property, val); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1764 | if (ret) |
| 1765 | goto fail; |
| 1766 | |
| 1767 | ret = drm_atomic_commit(state); |
| 1768 | if (ret != 0) |
| 1769 | goto fail; |
| 1770 | |
| 1771 | /* Driver takes ownership of state on successful commit. */ |
| 1772 | return 0; |
| 1773 | fail: |
| 1774 | if (ret == -EDEADLK) |
| 1775 | goto backoff; |
| 1776 | |
| 1777 | drm_atomic_state_free(state); |
| 1778 | |
| 1779 | return ret; |
| 1780 | backoff: |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1781 | drm_atomic_state_clear(state); |
Daniel Vetter | 6f75cea | 2014-11-19 18:38:07 +0100 | [diff] [blame] | 1782 | drm_atomic_legacy_backoff(state); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1783 | |
| 1784 | goto retry; |
| 1785 | } |
| 1786 | EXPORT_SYMBOL(drm_atomic_helper_crtc_set_property); |
| 1787 | |
| 1788 | /** |
Laurent Pinchart | 7f50002 | 2015-02-23 02:50:23 +0200 | [diff] [blame] | 1789 | * drm_atomic_helper_plane_set_property - helper for plane properties |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1790 | * @plane: DRM plane |
| 1791 | * @property: DRM property |
| 1792 | * @val: value of property |
| 1793 | * |
Laurent Pinchart | 7f50002 | 2015-02-23 02:50:23 +0200 | [diff] [blame] | 1794 | * Provides a default plane set_property handler using the atomic driver |
| 1795 | * interface. |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1796 | * |
| 1797 | * RETURNS: |
| 1798 | * Zero on success, error code on failure |
| 1799 | */ |
| 1800 | int |
| 1801 | drm_atomic_helper_plane_set_property(struct drm_plane *plane, |
| 1802 | struct drm_property *property, |
| 1803 | uint64_t val) |
| 1804 | { |
| 1805 | struct drm_atomic_state *state; |
| 1806 | struct drm_plane_state *plane_state; |
| 1807 | int ret = 0; |
| 1808 | |
| 1809 | state = drm_atomic_state_alloc(plane->dev); |
| 1810 | if (!state) |
| 1811 | return -ENOMEM; |
| 1812 | |
| 1813 | /* ->set_property is always called with all locks held. */ |
| 1814 | state->acquire_ctx = plane->dev->mode_config.acquire_ctx; |
| 1815 | retry: |
| 1816 | plane_state = drm_atomic_get_plane_state(state, plane); |
| 1817 | if (IS_ERR(plane_state)) { |
| 1818 | ret = PTR_ERR(plane_state); |
| 1819 | goto fail; |
| 1820 | } |
| 1821 | |
Rob Clark | 40ecc69 | 2014-12-18 16:01:46 -0500 | [diff] [blame] | 1822 | ret = drm_atomic_plane_set_property(plane, plane_state, |
| 1823 | property, val); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1824 | if (ret) |
| 1825 | goto fail; |
| 1826 | |
| 1827 | ret = drm_atomic_commit(state); |
| 1828 | if (ret != 0) |
| 1829 | goto fail; |
| 1830 | |
| 1831 | /* Driver takes ownership of state on successful commit. */ |
| 1832 | return 0; |
| 1833 | fail: |
| 1834 | if (ret == -EDEADLK) |
| 1835 | goto backoff; |
| 1836 | |
| 1837 | drm_atomic_state_free(state); |
| 1838 | |
| 1839 | return ret; |
| 1840 | backoff: |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1841 | drm_atomic_state_clear(state); |
Daniel Vetter | 6f75cea | 2014-11-19 18:38:07 +0100 | [diff] [blame] | 1842 | drm_atomic_legacy_backoff(state); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1843 | |
| 1844 | goto retry; |
| 1845 | } |
| 1846 | EXPORT_SYMBOL(drm_atomic_helper_plane_set_property); |
| 1847 | |
| 1848 | /** |
Laurent Pinchart | 7f50002 | 2015-02-23 02:50:23 +0200 | [diff] [blame] | 1849 | * drm_atomic_helper_connector_set_property - helper for connector properties |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1850 | * @connector: DRM connector |
| 1851 | * @property: DRM property |
| 1852 | * @val: value of property |
| 1853 | * |
Laurent Pinchart | 7f50002 | 2015-02-23 02:50:23 +0200 | [diff] [blame] | 1854 | * Provides a default connector set_property handler using the atomic driver |
| 1855 | * interface. |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1856 | * |
| 1857 | * RETURNS: |
| 1858 | * Zero on success, error code on failure |
| 1859 | */ |
| 1860 | int |
| 1861 | drm_atomic_helper_connector_set_property(struct drm_connector *connector, |
| 1862 | struct drm_property *property, |
| 1863 | uint64_t val) |
| 1864 | { |
| 1865 | struct drm_atomic_state *state; |
| 1866 | struct drm_connector_state *connector_state; |
| 1867 | int ret = 0; |
| 1868 | |
| 1869 | state = drm_atomic_state_alloc(connector->dev); |
| 1870 | if (!state) |
| 1871 | return -ENOMEM; |
| 1872 | |
| 1873 | /* ->set_property is always called with all locks held. */ |
| 1874 | state->acquire_ctx = connector->dev->mode_config.acquire_ctx; |
| 1875 | retry: |
| 1876 | connector_state = drm_atomic_get_connector_state(state, connector); |
| 1877 | if (IS_ERR(connector_state)) { |
| 1878 | ret = PTR_ERR(connector_state); |
| 1879 | goto fail; |
| 1880 | } |
| 1881 | |
Rob Clark | 40ecc69 | 2014-12-18 16:01:46 -0500 | [diff] [blame] | 1882 | ret = drm_atomic_connector_set_property(connector, connector_state, |
| 1883 | property, val); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1884 | if (ret) |
| 1885 | goto fail; |
| 1886 | |
| 1887 | ret = drm_atomic_commit(state); |
| 1888 | if (ret != 0) |
| 1889 | goto fail; |
| 1890 | |
| 1891 | /* Driver takes ownership of state on successful commit. */ |
| 1892 | return 0; |
| 1893 | fail: |
| 1894 | if (ret == -EDEADLK) |
| 1895 | goto backoff; |
| 1896 | |
| 1897 | drm_atomic_state_free(state); |
| 1898 | |
| 1899 | return ret; |
| 1900 | backoff: |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1901 | drm_atomic_state_clear(state); |
Daniel Vetter | 6f75cea | 2014-11-19 18:38:07 +0100 | [diff] [blame] | 1902 | drm_atomic_legacy_backoff(state); |
Daniel Vetter | 042652e | 2014-07-27 13:46:52 +0200 | [diff] [blame] | 1903 | |
| 1904 | goto retry; |
| 1905 | } |
| 1906 | EXPORT_SYMBOL(drm_atomic_helper_connector_set_property); |
Daniel Vetter | 8bc0f31 | 2014-07-27 18:42:37 +0200 | [diff] [blame] | 1907 | |
| 1908 | /** |
| 1909 | * drm_atomic_helper_page_flip - execute a legacy page flip |
| 1910 | * @crtc: DRM crtc |
| 1911 | * @fb: DRM framebuffer |
| 1912 | * @event: optional DRM event to signal upon completion |
| 1913 | * @flags: flip flags for non-vblank sync'ed updates |
| 1914 | * |
| 1915 | * Provides a default page flip implementation using the atomic driver interface. |
| 1916 | * |
| 1917 | * Note that for now so called async page flips (i.e. updates which are not |
| 1918 | * synchronized to vblank) are not supported, since the atomic interfaces have |
| 1919 | * no provisions for this yet. |
| 1920 | * |
| 1921 | * Returns: |
| 1922 | * Returns 0 on success, negative errno numbers on failure. |
| 1923 | */ |
| 1924 | int drm_atomic_helper_page_flip(struct drm_crtc *crtc, |
| 1925 | struct drm_framebuffer *fb, |
| 1926 | struct drm_pending_vblank_event *event, |
| 1927 | uint32_t flags) |
| 1928 | { |
| 1929 | struct drm_plane *plane = crtc->primary; |
| 1930 | struct drm_atomic_state *state; |
| 1931 | struct drm_plane_state *plane_state; |
| 1932 | struct drm_crtc_state *crtc_state; |
| 1933 | int ret = 0; |
| 1934 | |
| 1935 | if (flags & DRM_MODE_PAGE_FLIP_ASYNC) |
| 1936 | return -EINVAL; |
| 1937 | |
| 1938 | state = drm_atomic_state_alloc(plane->dev); |
| 1939 | if (!state) |
| 1940 | return -ENOMEM; |
| 1941 | |
| 1942 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); |
| 1943 | retry: |
| 1944 | crtc_state = drm_atomic_get_crtc_state(state, crtc); |
| 1945 | if (IS_ERR(crtc_state)) { |
| 1946 | ret = PTR_ERR(crtc_state); |
| 1947 | goto fail; |
| 1948 | } |
| 1949 | crtc_state->event = event; |
| 1950 | |
| 1951 | plane_state = drm_atomic_get_plane_state(state, plane); |
| 1952 | if (IS_ERR(plane_state)) { |
| 1953 | ret = PTR_ERR(plane_state); |
| 1954 | goto fail; |
| 1955 | } |
| 1956 | |
Daniel Vetter | 07cc0ef | 2014-11-27 15:49:39 +0100 | [diff] [blame] | 1957 | ret = drm_atomic_set_crtc_for_plane(plane_state, crtc); |
Daniel Vetter | 8bc0f31 | 2014-07-27 18:42:37 +0200 | [diff] [blame] | 1958 | if (ret != 0) |
| 1959 | goto fail; |
Daniel Vetter | 321ebf0 | 2014-11-04 22:57:27 +0100 | [diff] [blame] | 1960 | drm_atomic_set_fb_for_plane(plane_state, fb); |
Daniel Vetter | 8bc0f31 | 2014-07-27 18:42:37 +0200 | [diff] [blame] | 1961 | |
| 1962 | ret = drm_atomic_async_commit(state); |
| 1963 | if (ret != 0) |
| 1964 | goto fail; |
| 1965 | |
Daniel Vetter | 8bc0f31 | 2014-07-27 18:42:37 +0200 | [diff] [blame] | 1966 | /* Driver takes ownership of state on successful async commit. */ |
| 1967 | return 0; |
| 1968 | fail: |
| 1969 | if (ret == -EDEADLK) |
| 1970 | goto backoff; |
| 1971 | |
| 1972 | drm_atomic_state_free(state); |
| 1973 | |
| 1974 | return ret; |
| 1975 | backoff: |
Daniel Vetter | 8bc0f31 | 2014-07-27 18:42:37 +0200 | [diff] [blame] | 1976 | drm_atomic_state_clear(state); |
Daniel Vetter | 6f75cea | 2014-11-19 18:38:07 +0100 | [diff] [blame] | 1977 | drm_atomic_legacy_backoff(state); |
Daniel Vetter | 8bc0f31 | 2014-07-27 18:42:37 +0200 | [diff] [blame] | 1978 | |
| 1979 | /* |
| 1980 | * Someone might have exchanged the framebuffer while we dropped locks |
| 1981 | * in the backoff code. We need to fix up the fb refcount tracking the |
| 1982 | * core does for us. |
| 1983 | */ |
| 1984 | plane->old_fb = plane->fb; |
| 1985 | |
| 1986 | goto retry; |
| 1987 | } |
| 1988 | EXPORT_SYMBOL(drm_atomic_helper_page_flip); |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 1989 | |
| 1990 | /** |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 1991 | * drm_atomic_helper_connector_dpms() - connector dpms helper implementation |
| 1992 | * @connector: affected connector |
| 1993 | * @mode: DPMS mode |
| 1994 | * |
| 1995 | * This is the main helper function provided by the atomic helper framework for |
| 1996 | * implementing the legacy DPMS connector interface. It computes the new desired |
| 1997 | * ->active state for the corresponding CRTC (if the connector is enabled) and |
| 1998 | * updates it. |
Maarten Lankhorst | 9a69a9a | 2015-07-21 11:34:55 +0200 | [diff] [blame] | 1999 | * |
| 2000 | * Returns: |
| 2001 | * Returns 0 on success, negative errno numbers on failure. |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2002 | */ |
Maarten Lankhorst | 9a69a9a | 2015-07-21 11:34:55 +0200 | [diff] [blame] | 2003 | int drm_atomic_helper_connector_dpms(struct drm_connector *connector, |
| 2004 | int mode) |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2005 | { |
| 2006 | struct drm_mode_config *config = &connector->dev->mode_config; |
| 2007 | struct drm_atomic_state *state; |
| 2008 | struct drm_crtc_state *crtc_state; |
| 2009 | struct drm_crtc *crtc; |
| 2010 | struct drm_connector *tmp_connector; |
| 2011 | int ret; |
| 2012 | bool active = false; |
Maarten Lankhorst | 9a69a9a | 2015-07-21 11:34:55 +0200 | [diff] [blame] | 2013 | int old_mode = connector->dpms; |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2014 | |
| 2015 | if (mode != DRM_MODE_DPMS_ON) |
| 2016 | mode = DRM_MODE_DPMS_OFF; |
| 2017 | |
| 2018 | connector->dpms = mode; |
| 2019 | crtc = connector->state->crtc; |
| 2020 | |
| 2021 | if (!crtc) |
Maarten Lankhorst | 9a69a9a | 2015-07-21 11:34:55 +0200 | [diff] [blame] | 2022 | return 0; |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2023 | |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2024 | state = drm_atomic_state_alloc(connector->dev); |
| 2025 | if (!state) |
Maarten Lankhorst | 9a69a9a | 2015-07-21 11:34:55 +0200 | [diff] [blame] | 2026 | return -ENOMEM; |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2027 | |
| 2028 | state->acquire_ctx = drm_modeset_legacy_acquire_ctx(crtc); |
| 2029 | retry: |
| 2030 | crtc_state = drm_atomic_get_crtc_state(state, crtc); |
Maarten Lankhorst | 9a69a9a | 2015-07-21 11:34:55 +0200 | [diff] [blame] | 2031 | if (IS_ERR(crtc_state)) { |
| 2032 | ret = PTR_ERR(crtc_state); |
| 2033 | goto fail; |
| 2034 | } |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2035 | |
| 2036 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); |
| 2037 | |
Daniel Vetter | 9a9f5ce | 2015-07-09 23:44:34 +0200 | [diff] [blame] | 2038 | drm_for_each_connector(tmp_connector, connector->dev) { |
John Hunter | 0388df0 | 2015-03-17 15:30:28 +0800 | [diff] [blame] | 2039 | if (tmp_connector->state->crtc != crtc) |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2040 | continue; |
| 2041 | |
John Hunter | 0388df0 | 2015-03-17 15:30:28 +0800 | [diff] [blame] | 2042 | if (tmp_connector->dpms == DRM_MODE_DPMS_ON) { |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2043 | active = true; |
| 2044 | break; |
| 2045 | } |
| 2046 | } |
| 2047 | crtc_state->active = active; |
| 2048 | |
| 2049 | ret = drm_atomic_commit(state); |
| 2050 | if (ret != 0) |
| 2051 | goto fail; |
| 2052 | |
Maarten Lankhorst | 9a69a9a | 2015-07-21 11:34:55 +0200 | [diff] [blame] | 2053 | /* Driver takes ownership of state on successful commit. */ |
| 2054 | return 0; |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2055 | fail: |
| 2056 | if (ret == -EDEADLK) |
| 2057 | goto backoff; |
| 2058 | |
Maarten Lankhorst | 9a69a9a | 2015-07-21 11:34:55 +0200 | [diff] [blame] | 2059 | connector->dpms = old_mode; |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2060 | drm_atomic_state_free(state); |
| 2061 | |
Maarten Lankhorst | 9a69a9a | 2015-07-21 11:34:55 +0200 | [diff] [blame] | 2062 | return ret; |
Daniel Vetter | b486e0e | 2015-01-22 18:53:05 +0100 | [diff] [blame] | 2063 | backoff: |
| 2064 | drm_atomic_state_clear(state); |
| 2065 | drm_atomic_legacy_backoff(state); |
| 2066 | |
| 2067 | goto retry; |
| 2068 | } |
| 2069 | EXPORT_SYMBOL(drm_atomic_helper_connector_dpms); |
| 2070 | |
| 2071 | /** |
Daniel Vetter | 3150c7d | 2014-11-06 20:53:29 +0100 | [diff] [blame] | 2072 | * DOC: atomic state reset and initialization |
| 2073 | * |
| 2074 | * Both the drm core and the atomic helpers assume that there is always the full |
| 2075 | * and correct atomic software state for all connectors, CRTCs and planes |
| 2076 | * available. Which is a bit a problem on driver load and also after system |
| 2077 | * suspend. One way to solve this is to have a hardware state read-out |
| 2078 | * infrastructure which reconstructs the full software state (e.g. the i915 |
| 2079 | * driver). |
| 2080 | * |
| 2081 | * The simpler solution is to just reset the software state to everything off, |
| 2082 | * which is easiest to do by calling drm_mode_config_reset(). To facilitate this |
| 2083 | * the atomic helpers provide default reset implementations for all hooks. |
| 2084 | */ |
| 2085 | |
| 2086 | /** |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2087 | * drm_atomic_helper_crtc_reset - default ->reset hook for CRTCs |
| 2088 | * @crtc: drm CRTC |
| 2089 | * |
| 2090 | * Resets the atomic state for @crtc by freeing the state pointer (which might |
| 2091 | * be NULL, e.g. at driver load time) and allocating a new empty state object. |
| 2092 | */ |
| 2093 | void drm_atomic_helper_crtc_reset(struct drm_crtc *crtc) |
| 2094 | { |
Daniel Stone | 99cf4a2 | 2015-05-25 19:11:51 +0100 | [diff] [blame] | 2095 | if (crtc->state && crtc->state->mode_blob) |
| 2096 | drm_property_unreference_blob(crtc->state->mode_blob); |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2097 | kfree(crtc->state); |
| 2098 | crtc->state = kzalloc(sizeof(*crtc->state), GFP_KERNEL); |
Daniel Vetter | 07cc0ef | 2014-11-27 15:49:39 +0100 | [diff] [blame] | 2099 | |
| 2100 | if (crtc->state) |
| 2101 | crtc->state->crtc = crtc; |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2102 | } |
| 2103 | EXPORT_SYMBOL(drm_atomic_helper_crtc_reset); |
| 2104 | |
| 2105 | /** |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2106 | * __drm_atomic_helper_crtc_duplicate_state - copy atomic CRTC state |
| 2107 | * @crtc: CRTC object |
| 2108 | * @state: atomic CRTC state |
| 2109 | * |
| 2110 | * Copies atomic state from a CRTC's current state and resets inferred values. |
| 2111 | * This is useful for drivers that subclass the CRTC state. |
| 2112 | */ |
| 2113 | void __drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc, |
| 2114 | struct drm_crtc_state *state) |
| 2115 | { |
| 2116 | memcpy(state, crtc->state, sizeof(*state)); |
| 2117 | |
Daniel Stone | 99cf4a2 | 2015-05-25 19:11:51 +0100 | [diff] [blame] | 2118 | if (state->mode_blob) |
| 2119 | drm_property_reference_blob(state->mode_blob); |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2120 | state->mode_changed = false; |
| 2121 | state->active_changed = false; |
| 2122 | state->planes_changed = false; |
Maarten Lankhorst | fc59666 | 2015-07-21 13:28:57 +0200 | [diff] [blame] | 2123 | state->connectors_changed = false; |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2124 | state->event = NULL; |
| 2125 | } |
| 2126 | EXPORT_SYMBOL(__drm_atomic_helper_crtc_duplicate_state); |
| 2127 | |
| 2128 | /** |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2129 | * drm_atomic_helper_crtc_duplicate_state - default state duplicate hook |
| 2130 | * @crtc: drm CRTC |
| 2131 | * |
| 2132 | * Default CRTC state duplicate hook for drivers which don't have their own |
| 2133 | * subclassed CRTC state structure. |
| 2134 | */ |
| 2135 | struct drm_crtc_state * |
| 2136 | drm_atomic_helper_crtc_duplicate_state(struct drm_crtc *crtc) |
| 2137 | { |
| 2138 | struct drm_crtc_state *state; |
| 2139 | |
| 2140 | if (WARN_ON(!crtc->state)) |
| 2141 | return NULL; |
| 2142 | |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2143 | state = kmalloc(sizeof(*state), GFP_KERNEL); |
| 2144 | if (state) |
| 2145 | __drm_atomic_helper_crtc_duplicate_state(crtc, state); |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2146 | |
| 2147 | return state; |
| 2148 | } |
| 2149 | EXPORT_SYMBOL(drm_atomic_helper_crtc_duplicate_state); |
| 2150 | |
| 2151 | /** |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2152 | * __drm_atomic_helper_crtc_destroy_state - release CRTC state |
| 2153 | * @crtc: CRTC object |
| 2154 | * @state: CRTC state object to release |
| 2155 | * |
| 2156 | * Releases all resources stored in the CRTC state without actually freeing |
| 2157 | * the memory of the CRTC state. This is useful for drivers that subclass the |
| 2158 | * CRTC state. |
| 2159 | */ |
| 2160 | void __drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc, |
| 2161 | struct drm_crtc_state *state) |
| 2162 | { |
Daniel Stone | 99cf4a2 | 2015-05-25 19:11:51 +0100 | [diff] [blame] | 2163 | if (state->mode_blob) |
| 2164 | drm_property_unreference_blob(state->mode_blob); |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2165 | } |
| 2166 | EXPORT_SYMBOL(__drm_atomic_helper_crtc_destroy_state); |
| 2167 | |
| 2168 | /** |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2169 | * drm_atomic_helper_crtc_destroy_state - default state destroy hook |
| 2170 | * @crtc: drm CRTC |
| 2171 | * @state: CRTC state object to release |
| 2172 | * |
| 2173 | * Default CRTC state destroy hook for drivers which don't have their own |
| 2174 | * subclassed CRTC state structure. |
| 2175 | */ |
| 2176 | void drm_atomic_helper_crtc_destroy_state(struct drm_crtc *crtc, |
| 2177 | struct drm_crtc_state *state) |
| 2178 | { |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2179 | __drm_atomic_helper_crtc_destroy_state(crtc, state); |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2180 | kfree(state); |
| 2181 | } |
| 2182 | EXPORT_SYMBOL(drm_atomic_helper_crtc_destroy_state); |
| 2183 | |
| 2184 | /** |
| 2185 | * drm_atomic_helper_plane_reset - default ->reset hook for planes |
| 2186 | * @plane: drm plane |
| 2187 | * |
| 2188 | * Resets the atomic state for @plane by freeing the state pointer (which might |
| 2189 | * be NULL, e.g. at driver load time) and allocating a new empty state object. |
| 2190 | */ |
| 2191 | void drm_atomic_helper_plane_reset(struct drm_plane *plane) |
| 2192 | { |
Daniel Vetter | 321ebf0 | 2014-11-04 22:57:27 +0100 | [diff] [blame] | 2193 | if (plane->state && plane->state->fb) |
| 2194 | drm_framebuffer_unreference(plane->state->fb); |
| 2195 | |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2196 | kfree(plane->state); |
| 2197 | plane->state = kzalloc(sizeof(*plane->state), GFP_KERNEL); |
Daniel Vetter | 07cc0ef | 2014-11-27 15:49:39 +0100 | [diff] [blame] | 2198 | |
| 2199 | if (plane->state) |
| 2200 | plane->state->plane = plane; |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2201 | } |
| 2202 | EXPORT_SYMBOL(drm_atomic_helper_plane_reset); |
| 2203 | |
| 2204 | /** |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2205 | * __drm_atomic_helper_plane_duplicate_state - copy atomic plane state |
| 2206 | * @plane: plane object |
| 2207 | * @state: atomic plane state |
| 2208 | * |
| 2209 | * Copies atomic state from a plane's current state. This is useful for |
| 2210 | * drivers that subclass the plane state. |
| 2211 | */ |
| 2212 | void __drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane, |
| 2213 | struct drm_plane_state *state) |
| 2214 | { |
| 2215 | memcpy(state, plane->state, sizeof(*state)); |
| 2216 | |
| 2217 | if (state->fb) |
| 2218 | drm_framebuffer_reference(state->fb); |
| 2219 | } |
| 2220 | EXPORT_SYMBOL(__drm_atomic_helper_plane_duplicate_state); |
| 2221 | |
| 2222 | /** |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2223 | * drm_atomic_helper_plane_duplicate_state - default state duplicate hook |
| 2224 | * @plane: drm plane |
| 2225 | * |
| 2226 | * Default plane state duplicate hook for drivers which don't have their own |
| 2227 | * subclassed plane state structure. |
| 2228 | */ |
| 2229 | struct drm_plane_state * |
| 2230 | drm_atomic_helper_plane_duplicate_state(struct drm_plane *plane) |
| 2231 | { |
Daniel Vetter | 321ebf0 | 2014-11-04 22:57:27 +0100 | [diff] [blame] | 2232 | struct drm_plane_state *state; |
| 2233 | |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2234 | if (WARN_ON(!plane->state)) |
| 2235 | return NULL; |
| 2236 | |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2237 | state = kmalloc(sizeof(*state), GFP_KERNEL); |
| 2238 | if (state) |
| 2239 | __drm_atomic_helper_plane_duplicate_state(plane, state); |
Daniel Vetter | 321ebf0 | 2014-11-04 22:57:27 +0100 | [diff] [blame] | 2240 | |
| 2241 | return state; |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2242 | } |
| 2243 | EXPORT_SYMBOL(drm_atomic_helper_plane_duplicate_state); |
| 2244 | |
| 2245 | /** |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2246 | * __drm_atomic_helper_plane_destroy_state - release plane state |
| 2247 | * @plane: plane object |
| 2248 | * @state: plane state object to release |
| 2249 | * |
| 2250 | * Releases all resources stored in the plane state without actually freeing |
| 2251 | * the memory of the plane state. This is useful for drivers that subclass the |
| 2252 | * plane state. |
| 2253 | */ |
| 2254 | void __drm_atomic_helper_plane_destroy_state(struct drm_plane *plane, |
| 2255 | struct drm_plane_state *state) |
| 2256 | { |
| 2257 | if (state->fb) |
| 2258 | drm_framebuffer_unreference(state->fb); |
| 2259 | } |
| 2260 | EXPORT_SYMBOL(__drm_atomic_helper_plane_destroy_state); |
| 2261 | |
| 2262 | /** |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2263 | * drm_atomic_helper_plane_destroy_state - default state destroy hook |
| 2264 | * @plane: drm plane |
| 2265 | * @state: plane state object to release |
| 2266 | * |
| 2267 | * Default plane state destroy hook for drivers which don't have their own |
| 2268 | * subclassed plane state structure. |
| 2269 | */ |
| 2270 | void drm_atomic_helper_plane_destroy_state(struct drm_plane *plane, |
Daniel Vetter | 321ebf0 | 2014-11-04 22:57:27 +0100 | [diff] [blame] | 2271 | struct drm_plane_state *state) |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2272 | { |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2273 | __drm_atomic_helper_plane_destroy_state(plane, state); |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2274 | kfree(state); |
| 2275 | } |
| 2276 | EXPORT_SYMBOL(drm_atomic_helper_plane_destroy_state); |
| 2277 | |
| 2278 | /** |
| 2279 | * drm_atomic_helper_connector_reset - default ->reset hook for connectors |
| 2280 | * @connector: drm connector |
| 2281 | * |
| 2282 | * Resets the atomic state for @connector by freeing the state pointer (which |
| 2283 | * might be NULL, e.g. at driver load time) and allocating a new empty state |
| 2284 | * object. |
| 2285 | */ |
| 2286 | void drm_atomic_helper_connector_reset(struct drm_connector *connector) |
| 2287 | { |
| 2288 | kfree(connector->state); |
| 2289 | connector->state = kzalloc(sizeof(*connector->state), GFP_KERNEL); |
Daniel Vetter | 07cc0ef | 2014-11-27 15:49:39 +0100 | [diff] [blame] | 2290 | |
| 2291 | if (connector->state) |
| 2292 | connector->state->connector = connector; |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2293 | } |
| 2294 | EXPORT_SYMBOL(drm_atomic_helper_connector_reset); |
| 2295 | |
| 2296 | /** |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2297 | * __drm_atomic_helper_connector_duplicate_state - copy atomic connector state |
| 2298 | * @connector: connector object |
| 2299 | * @state: atomic connector state |
| 2300 | * |
| 2301 | * Copies atomic state from a connector's current state. This is useful for |
| 2302 | * drivers that subclass the connector state. |
| 2303 | */ |
| 2304 | void |
| 2305 | __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector, |
| 2306 | struct drm_connector_state *state) |
| 2307 | { |
| 2308 | memcpy(state, connector->state, sizeof(*state)); |
| 2309 | } |
| 2310 | EXPORT_SYMBOL(__drm_atomic_helper_connector_duplicate_state); |
| 2311 | |
| 2312 | /** |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2313 | * drm_atomic_helper_connector_duplicate_state - default state duplicate hook |
| 2314 | * @connector: drm connector |
| 2315 | * |
| 2316 | * Default connector state duplicate hook for drivers which don't have their own |
| 2317 | * subclassed connector state structure. |
| 2318 | */ |
| 2319 | struct drm_connector_state * |
| 2320 | drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector) |
| 2321 | { |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2322 | struct drm_connector_state *state; |
| 2323 | |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2324 | if (WARN_ON(!connector->state)) |
| 2325 | return NULL; |
| 2326 | |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2327 | state = kmalloc(sizeof(*state), GFP_KERNEL); |
| 2328 | if (state) |
| 2329 | __drm_atomic_helper_connector_duplicate_state(connector, state); |
| 2330 | |
| 2331 | return state; |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2332 | } |
| 2333 | EXPORT_SYMBOL(drm_atomic_helper_connector_duplicate_state); |
| 2334 | |
| 2335 | /** |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2336 | * __drm_atomic_helper_connector_destroy_state - release connector state |
| 2337 | * @connector: connector object |
| 2338 | * @state: connector state object to release |
| 2339 | * |
| 2340 | * Releases all resources stored in the connector state without actually |
| 2341 | * freeing the memory of the connector state. This is useful for drivers that |
| 2342 | * subclass the connector state. |
| 2343 | */ |
| 2344 | void |
| 2345 | __drm_atomic_helper_connector_destroy_state(struct drm_connector *connector, |
| 2346 | struct drm_connector_state *state) |
| 2347 | { |
| 2348 | /* |
| 2349 | * This is currently a placeholder so that drivers that subclass the |
| 2350 | * state will automatically do the right thing if code is ever added |
| 2351 | * to this function. |
| 2352 | */ |
| 2353 | } |
| 2354 | EXPORT_SYMBOL(__drm_atomic_helper_connector_destroy_state); |
| 2355 | |
| 2356 | /** |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2357 | * drm_atomic_helper_connector_destroy_state - default state destroy hook |
| 2358 | * @connector: drm connector |
| 2359 | * @state: connector state object to release |
| 2360 | * |
| 2361 | * Default connector state destroy hook for drivers which don't have their own |
| 2362 | * subclassed connector state structure. |
| 2363 | */ |
| 2364 | void drm_atomic_helper_connector_destroy_state(struct drm_connector *connector, |
| 2365 | struct drm_connector_state *state) |
| 2366 | { |
Thierry Reding | f5e7840 | 2015-01-28 14:54:32 +0100 | [diff] [blame] | 2367 | __drm_atomic_helper_connector_destroy_state(connector, state); |
Daniel Vetter | d461701 | 2014-11-03 15:56:43 +0100 | [diff] [blame] | 2368 | kfree(state); |
| 2369 | } |
| 2370 | EXPORT_SYMBOL(drm_atomic_helper_connector_destroy_state); |