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1 | /* |
1 | /* |
2 | * Copyright (C) 2014 Red Hat |
2 | * Copyright (C) 2014 Red Hat |
3 | * Copyright (C) 2014 Intel Corp. |
3 | * Copyright (C) 2014 Intel Corp. |
4 | * |
4 | * |
5 | * Permission is hereby granted, free of charge, to any person obtaining a |
5 | * Permission is hereby granted, free of charge, to any person obtaining a |
6 | * copy of this software and associated documentation files (the "Software"), |
6 | * copy of this software and associated documentation files (the "Software"), |
7 | * to deal in the Software without restriction, including without limitation |
7 | * to deal in the Software without restriction, including without limitation |
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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 |
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: |
10 | * Software is furnished to do so, subject to the following conditions: |
11 | * |
11 | * |
12 | * The above copyright notice and this permission notice shall be included in |
12 | * The above copyright notice and this permission notice shall be included in |
13 | * all copies or substantial portions of the Software. |
13 | * all copies or substantial portions of the Software. |
14 | * |
14 | * |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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, |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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 |
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, |
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 |
20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
21 | * OTHER DEALINGS IN THE SOFTWARE. |
21 | * OTHER DEALINGS IN THE SOFTWARE. |
22 | * |
22 | * |
23 | * Authors: |
23 | * Authors: |
24 | * Rob Clark |
24 | * Rob Clark |
25 | * Daniel Vetter |
25 | * Daniel Vetter |
26 | */ |
26 | */ |
27 | 27 | ||
28 | 28 | ||
29 | #include |
29 | #include |
30 | #include |
30 | #include |
31 | #include |
31 | #include |
32 | 32 | ||
33 | /** |
33 | /** |
34 | * drm_atomic_state_default_release - |
34 | * drm_atomic_state_default_release - |
35 | * release memory initialized by drm_atomic_state_init |
35 | * release memory initialized by drm_atomic_state_init |
36 | * @state: atomic state |
36 | * @state: atomic state |
37 | * |
37 | * |
38 | * Free all the memory allocated by drm_atomic_state_init. |
38 | * Free all the memory allocated by drm_atomic_state_init. |
39 | * This is useful for drivers that subclass the atomic state. |
39 | * This is useful for drivers that subclass the atomic state. |
40 | */ |
40 | */ |
41 | void drm_atomic_state_default_release(struct drm_atomic_state *state) |
41 | void drm_atomic_state_default_release(struct drm_atomic_state *state) |
42 | { |
42 | { |
43 | kfree(state->connectors); |
43 | kfree(state->connectors); |
44 | kfree(state->connector_states); |
44 | kfree(state->connector_states); |
45 | kfree(state->crtcs); |
45 | kfree(state->crtcs); |
46 | kfree(state->crtc_states); |
46 | kfree(state->crtc_states); |
47 | kfree(state->planes); |
47 | kfree(state->planes); |
48 | kfree(state->plane_states); |
48 | kfree(state->plane_states); |
49 | } |
49 | } |
50 | EXPORT_SYMBOL(drm_atomic_state_default_release); |
50 | EXPORT_SYMBOL(drm_atomic_state_default_release); |
51 | 51 | ||
52 | /** |
52 | /** |
53 | * drm_atomic_state_init - init new atomic state |
53 | * drm_atomic_state_init - init new atomic state |
54 | * @dev: DRM device |
54 | * @dev: DRM device |
55 | * @state: atomic state |
55 | * @state: atomic state |
56 | * |
56 | * |
57 | * Default implementation for filling in a new atomic state. |
57 | * Default implementation for filling in a new atomic state. |
58 | * This is useful for drivers that subclass the atomic state. |
58 | * This is useful for drivers that subclass the atomic state. |
59 | */ |
59 | */ |
60 | int |
60 | int |
61 | drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state) |
61 | drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state) |
62 | { |
62 | { |
63 | /* TODO legacy paths should maybe do a better job about |
63 | /* TODO legacy paths should maybe do a better job about |
64 | * setting this appropriately? |
64 | * setting this appropriately? |
65 | */ |
65 | */ |
66 | state->allow_modeset = true; |
66 | state->allow_modeset = true; |
67 | 67 | ||
68 | state->num_connector = ACCESS_ONCE(dev->mode_config.num_connector); |
68 | state->num_connector = ACCESS_ONCE(dev->mode_config.num_connector); |
69 | 69 | ||
70 | state->crtcs = kcalloc(dev->mode_config.num_crtc, |
70 | state->crtcs = kcalloc(dev->mode_config.num_crtc, |
71 | sizeof(*state->crtcs), GFP_KERNEL); |
71 | sizeof(*state->crtcs), GFP_KERNEL); |
72 | if (!state->crtcs) |
72 | if (!state->crtcs) |
73 | goto fail; |
73 | goto fail; |
74 | state->crtc_states = kcalloc(dev->mode_config.num_crtc, |
74 | state->crtc_states = kcalloc(dev->mode_config.num_crtc, |
75 | sizeof(*state->crtc_states), GFP_KERNEL); |
75 | sizeof(*state->crtc_states), GFP_KERNEL); |
76 | if (!state->crtc_states) |
76 | if (!state->crtc_states) |
77 | goto fail; |
77 | goto fail; |
78 | state->planes = kcalloc(dev->mode_config.num_total_plane, |
78 | state->planes = kcalloc(dev->mode_config.num_total_plane, |
79 | sizeof(*state->planes), GFP_KERNEL); |
79 | sizeof(*state->planes), GFP_KERNEL); |
80 | if (!state->planes) |
80 | if (!state->planes) |
81 | goto fail; |
81 | goto fail; |
82 | state->plane_states = kcalloc(dev->mode_config.num_total_plane, |
82 | state->plane_states = kcalloc(dev->mode_config.num_total_plane, |
83 | sizeof(*state->plane_states), GFP_KERNEL); |
83 | sizeof(*state->plane_states), GFP_KERNEL); |
84 | if (!state->plane_states) |
84 | if (!state->plane_states) |
85 | goto fail; |
85 | goto fail; |
86 | state->connectors = kcalloc(state->num_connector, |
86 | state->connectors = kcalloc(state->num_connector, |
87 | sizeof(*state->connectors), |
87 | sizeof(*state->connectors), |
88 | GFP_KERNEL); |
88 | GFP_KERNEL); |
89 | if (!state->connectors) |
89 | if (!state->connectors) |
90 | goto fail; |
90 | goto fail; |
91 | state->connector_states = kcalloc(state->num_connector, |
91 | state->connector_states = kcalloc(state->num_connector, |
92 | sizeof(*state->connector_states), |
92 | sizeof(*state->connector_states), |
93 | GFP_KERNEL); |
93 | GFP_KERNEL); |
94 | if (!state->connector_states) |
94 | if (!state->connector_states) |
95 | goto fail; |
95 | goto fail; |
96 | 96 | ||
97 | state->dev = dev; |
97 | state->dev = dev; |
98 | 98 | ||
99 | DRM_DEBUG_ATOMIC("Allocated atomic state %p\n", state); |
99 | DRM_DEBUG_ATOMIC("Allocated atomic state %p\n", state); |
100 | 100 | ||
101 | return 0; |
101 | return 0; |
102 | fail: |
102 | fail: |
103 | drm_atomic_state_default_release(state); |
103 | drm_atomic_state_default_release(state); |
104 | return -ENOMEM; |
104 | return -ENOMEM; |
105 | } |
105 | } |
106 | EXPORT_SYMBOL(drm_atomic_state_init); |
106 | EXPORT_SYMBOL(drm_atomic_state_init); |
107 | 107 | ||
108 | /** |
108 | /** |
109 | * drm_atomic_state_alloc - allocate atomic state |
109 | * drm_atomic_state_alloc - allocate atomic state |
110 | * @dev: DRM device |
110 | * @dev: DRM device |
111 | * |
111 | * |
112 | * This allocates an empty atomic state to track updates. |
112 | * This allocates an empty atomic state to track updates. |
113 | */ |
113 | */ |
114 | struct drm_atomic_state * |
114 | struct drm_atomic_state * |
115 | drm_atomic_state_alloc(struct drm_device *dev) |
115 | drm_atomic_state_alloc(struct drm_device *dev) |
116 | { |
116 | { |
117 | struct drm_mode_config *config = &dev->mode_config; |
117 | struct drm_mode_config *config = &dev->mode_config; |
118 | struct drm_atomic_state *state; |
118 | struct drm_atomic_state *state; |
119 | 119 | ||
120 | if (!config->funcs->atomic_state_alloc) { |
120 | if (!config->funcs->atomic_state_alloc) { |
121 | state = kzalloc(sizeof(*state), GFP_KERNEL); |
121 | state = kzalloc(sizeof(*state), GFP_KERNEL); |
122 | if (!state) |
122 | if (!state) |
123 | return NULL; |
123 | return NULL; |
124 | if (drm_atomic_state_init(dev, state) < 0) { |
124 | if (drm_atomic_state_init(dev, state) < 0) { |
125 | kfree(state); |
125 | kfree(state); |
126 | return NULL; |
126 | return NULL; |
127 | } |
127 | } |
128 | return state; |
128 | return state; |
129 | } |
129 | } |
130 | 130 | ||
131 | return config->funcs->atomic_state_alloc(dev); |
131 | return config->funcs->atomic_state_alloc(dev); |
132 | } |
132 | } |
133 | EXPORT_SYMBOL(drm_atomic_state_alloc); |
133 | EXPORT_SYMBOL(drm_atomic_state_alloc); |
134 | 134 | ||
135 | /** |
135 | /** |
136 | * drm_atomic_state_default_clear - clear base atomic state |
136 | * drm_atomic_state_default_clear - clear base atomic state |
137 | * @state: atomic state |
137 | * @state: atomic state |
138 | * |
138 | * |
139 | * Default implementation for clearing atomic state. |
139 | * Default implementation for clearing atomic state. |
140 | * This is useful for drivers that subclass the atomic state. |
140 | * This is useful for drivers that subclass the atomic state. |
141 | */ |
141 | */ |
142 | void drm_atomic_state_default_clear(struct drm_atomic_state *state) |
142 | void drm_atomic_state_default_clear(struct drm_atomic_state *state) |
143 | { |
143 | { |
144 | struct drm_device *dev = state->dev; |
144 | struct drm_device *dev = state->dev; |
145 | struct drm_mode_config *config = &dev->mode_config; |
145 | struct drm_mode_config *config = &dev->mode_config; |
146 | int i; |
146 | int i; |
147 | 147 | ||
148 | DRM_DEBUG_ATOMIC("Clearing atomic state %p\n", state); |
148 | DRM_DEBUG_ATOMIC("Clearing atomic state %p\n", state); |
149 | 149 | ||
150 | for (i = 0; i < state->num_connector; i++) { |
150 | for (i = 0; i < state->num_connector; i++) { |
151 | struct drm_connector *connector = state->connectors[i]; |
151 | struct drm_connector *connector = state->connectors[i]; |
152 | 152 | ||
153 | if (!connector) |
153 | if (!connector || !connector->funcs) |
154 | continue; |
154 | continue; |
155 | 155 | ||
156 | /* |
156 | /* |
157 | * FIXME: Async commits can race with connector unplugging and |
157 | * FIXME: Async commits can race with connector unplugging and |
158 | * there's currently nothing that prevents cleanup up state for |
158 | * there's currently nothing that prevents cleanup up state for |
159 | * deleted connectors. As long as the callback doesn't look at |
159 | * deleted connectors. As long as the callback doesn't look at |
160 | * the connector we'll be fine though, so make sure that's the |
160 | * the connector we'll be fine though, so make sure that's the |
161 | * case by setting all connector pointers to NULL. |
161 | * case by setting all connector pointers to NULL. |
162 | */ |
162 | */ |
163 | state->connector_states[i]->connector = NULL; |
163 | state->connector_states[i]->connector = NULL; |
164 | connector->funcs->atomic_destroy_state(NULL, |
164 | connector->funcs->atomic_destroy_state(NULL, |
165 | state->connector_states[i]); |
165 | state->connector_states[i]); |
166 | state->connectors[i] = NULL; |
166 | state->connectors[i] = NULL; |
167 | state->connector_states[i] = NULL; |
167 | state->connector_states[i] = NULL; |
168 | } |
168 | } |
169 | 169 | ||
170 | for (i = 0; i < config->num_crtc; i++) { |
170 | for (i = 0; i < config->num_crtc; i++) { |
171 | struct drm_crtc *crtc = state->crtcs[i]; |
171 | struct drm_crtc *crtc = state->crtcs[i]; |
172 | 172 | ||
173 | if (!crtc) |
173 | if (!crtc) |
174 | continue; |
174 | continue; |
175 | 175 | ||
176 | crtc->funcs->atomic_destroy_state(crtc, |
176 | crtc->funcs->atomic_destroy_state(crtc, |
177 | state->crtc_states[i]); |
177 | state->crtc_states[i]); |
178 | state->crtcs[i] = NULL; |
178 | state->crtcs[i] = NULL; |
179 | state->crtc_states[i] = NULL; |
179 | state->crtc_states[i] = NULL; |
180 | } |
180 | } |
181 | 181 | ||
182 | for (i = 0; i < config->num_total_plane; i++) { |
182 | for (i = 0; i < config->num_total_plane; i++) { |
183 | struct drm_plane *plane = state->planes[i]; |
183 | struct drm_plane *plane = state->planes[i]; |
184 | 184 | ||
185 | if (!plane) |
185 | if (!plane) |
186 | continue; |
186 | continue; |
187 | 187 | ||
188 | plane->funcs->atomic_destroy_state(plane, |
188 | plane->funcs->atomic_destroy_state(plane, |
189 | state->plane_states[i]); |
189 | state->plane_states[i]); |
190 | state->planes[i] = NULL; |
190 | state->planes[i] = NULL; |
191 | state->plane_states[i] = NULL; |
191 | state->plane_states[i] = NULL; |
192 | } |
192 | } |
193 | } |
193 | } |
194 | EXPORT_SYMBOL(drm_atomic_state_default_clear); |
194 | EXPORT_SYMBOL(drm_atomic_state_default_clear); |
195 | 195 | ||
196 | /** |
196 | /** |
197 | * drm_atomic_state_clear - clear state object |
197 | * drm_atomic_state_clear - clear state object |
198 | * @state: atomic state |
198 | * @state: atomic state |
199 | * |
199 | * |
200 | * When the w/w mutex algorithm detects a deadlock we need to back off and drop |
200 | * When the w/w mutex algorithm detects a deadlock we need to back off and drop |
201 | * all locks. So someone else could sneak in and change the current modeset |
201 | * all locks. So someone else could sneak in and change the current modeset |
202 | * configuration. Which means that all the state assembled in @state is no |
202 | * configuration. Which means that all the state assembled in @state is no |
203 | * longer an atomic update to the current state, but to some arbitrary earlier |
203 | * longer an atomic update to the current state, but to some arbitrary earlier |
204 | * state. Which could break assumptions the driver's ->atomic_check likely |
204 | * state. Which could break assumptions the driver's ->atomic_check likely |
205 | * relies on. |
205 | * relies on. |
206 | * |
206 | * |
207 | * Hence we must clear all cached state and completely start over, using this |
207 | * Hence we must clear all cached state and completely start over, using this |
208 | * function. |
208 | * function. |
209 | */ |
209 | */ |
210 | void drm_atomic_state_clear(struct drm_atomic_state *state) |
210 | void drm_atomic_state_clear(struct drm_atomic_state *state) |
211 | { |
211 | { |
212 | struct drm_device *dev = state->dev; |
212 | struct drm_device *dev = state->dev; |
213 | struct drm_mode_config *config = &dev->mode_config; |
213 | struct drm_mode_config *config = &dev->mode_config; |
214 | 214 | ||
215 | if (config->funcs->atomic_state_clear) |
215 | if (config->funcs->atomic_state_clear) |
216 | config->funcs->atomic_state_clear(state); |
216 | config->funcs->atomic_state_clear(state); |
217 | else |
217 | else |
218 | drm_atomic_state_default_clear(state); |
218 | drm_atomic_state_default_clear(state); |
219 | } |
219 | } |
220 | EXPORT_SYMBOL(drm_atomic_state_clear); |
220 | EXPORT_SYMBOL(drm_atomic_state_clear); |
221 | 221 | ||
222 | /** |
222 | /** |
223 | * drm_atomic_state_free - free all memory for an atomic state |
223 | * drm_atomic_state_free - free all memory for an atomic state |
224 | * @state: atomic state to deallocate |
224 | * @state: atomic state to deallocate |
225 | * |
225 | * |
226 | * This frees all memory associated with an atomic state, including all the |
226 | * This frees all memory associated with an atomic state, including all the |
227 | * per-object state for planes, crtcs and connectors. |
227 | * per-object state for planes, crtcs and connectors. |
228 | */ |
228 | */ |
229 | void drm_atomic_state_free(struct drm_atomic_state *state) |
229 | void drm_atomic_state_free(struct drm_atomic_state *state) |
230 | { |
230 | { |
231 | struct drm_device *dev; |
231 | struct drm_device *dev; |
232 | struct drm_mode_config *config; |
232 | struct drm_mode_config *config; |
233 | 233 | ||
234 | if (!state) |
234 | if (!state) |
235 | return; |
235 | return; |
236 | 236 | ||
237 | dev = state->dev; |
237 | dev = state->dev; |
238 | config = &dev->mode_config; |
238 | config = &dev->mode_config; |
239 | 239 | ||
240 | drm_atomic_state_clear(state); |
240 | drm_atomic_state_clear(state); |
241 | 241 | ||
242 | DRM_DEBUG_ATOMIC("Freeing atomic state %p\n", state); |
242 | DRM_DEBUG_ATOMIC("Freeing atomic state %p\n", state); |
243 | 243 | ||
244 | if (config->funcs->atomic_state_free) { |
244 | if (config->funcs->atomic_state_free) { |
245 | config->funcs->atomic_state_free(state); |
245 | config->funcs->atomic_state_free(state); |
246 | } else { |
246 | } else { |
247 | drm_atomic_state_default_release(state); |
247 | drm_atomic_state_default_release(state); |
248 | kfree(state); |
248 | kfree(state); |
249 | } |
249 | } |
250 | } |
250 | } |
251 | EXPORT_SYMBOL(drm_atomic_state_free); |
251 | EXPORT_SYMBOL(drm_atomic_state_free); |
252 | 252 | ||
253 | /** |
253 | /** |
254 | * drm_atomic_get_crtc_state - get crtc state |
254 | * drm_atomic_get_crtc_state - get crtc state |
255 | * @state: global atomic state object |
255 | * @state: global atomic state object |
256 | * @crtc: crtc to get state object for |
256 | * @crtc: crtc to get state object for |
257 | * |
257 | * |
258 | * This function returns the crtc state for the given crtc, allocating it if |
258 | * This function returns the crtc state for the given crtc, allocating it if |
259 | * needed. It will also grab the relevant crtc lock to make sure that the state |
259 | * needed. It will also grab the relevant crtc lock to make sure that the state |
260 | * is consistent. |
260 | * is consistent. |
261 | * |
261 | * |
262 | * Returns: |
262 | * Returns: |
263 | * |
263 | * |
264 | * Either the allocated state or the error code encoded into the pointer. When |
264 | * Either the allocated state or the error code encoded into the pointer. When |
265 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the |
265 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the |
266 | * entire atomic sequence must be restarted. All other errors are fatal. |
266 | * entire atomic sequence must be restarted. All other errors are fatal. |
267 | */ |
267 | */ |
268 | struct drm_crtc_state * |
268 | struct drm_crtc_state * |
269 | drm_atomic_get_crtc_state(struct drm_atomic_state *state, |
269 | drm_atomic_get_crtc_state(struct drm_atomic_state *state, |
270 | struct drm_crtc *crtc) |
270 | struct drm_crtc *crtc) |
271 | { |
271 | { |
272 | int ret, index = drm_crtc_index(crtc); |
272 | int ret, index = drm_crtc_index(crtc); |
273 | struct drm_crtc_state *crtc_state; |
273 | struct drm_crtc_state *crtc_state; |
274 | 274 | ||
275 | crtc_state = drm_atomic_get_existing_crtc_state(state, crtc); |
275 | crtc_state = drm_atomic_get_existing_crtc_state(state, crtc); |
276 | if (crtc_state) |
276 | if (crtc_state) |
277 | return crtc_state; |
277 | return crtc_state; |
278 | 278 | ||
279 | ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx); |
279 | ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx); |
280 | if (ret) |
280 | if (ret) |
281 | return ERR_PTR(ret); |
281 | return ERR_PTR(ret); |
282 | 282 | ||
283 | crtc_state = crtc->funcs->atomic_duplicate_state(crtc); |
283 | crtc_state = crtc->funcs->atomic_duplicate_state(crtc); |
284 | if (!crtc_state) |
284 | if (!crtc_state) |
285 | return ERR_PTR(-ENOMEM); |
285 | return ERR_PTR(-ENOMEM); |
286 | 286 | ||
287 | state->crtc_states[index] = crtc_state; |
287 | state->crtc_states[index] = crtc_state; |
288 | state->crtcs[index] = crtc; |
288 | state->crtcs[index] = crtc; |
289 | crtc_state->state = state; |
289 | crtc_state->state = state; |
290 | 290 | ||
291 | DRM_DEBUG_ATOMIC("Added [CRTC:%d] %p state to %p\n", |
291 | DRM_DEBUG_ATOMIC("Added [CRTC:%d] %p state to %p\n", |
292 | crtc->base.id, crtc_state, state); |
292 | crtc->base.id, crtc_state, state); |
293 | 293 | ||
294 | return crtc_state; |
294 | return crtc_state; |
295 | } |
295 | } |
296 | EXPORT_SYMBOL(drm_atomic_get_crtc_state); |
296 | EXPORT_SYMBOL(drm_atomic_get_crtc_state); |
297 | 297 | ||
298 | /** |
298 | /** |
299 | * drm_atomic_set_mode_for_crtc - set mode for CRTC |
299 | * drm_atomic_set_mode_for_crtc - set mode for CRTC |
300 | * @state: the CRTC whose incoming state to update |
300 | * @state: the CRTC whose incoming state to update |
301 | * @mode: kernel-internal mode to use for the CRTC, or NULL to disable |
301 | * @mode: kernel-internal mode to use for the CRTC, or NULL to disable |
302 | * |
302 | * |
303 | * Set a mode (originating from the kernel) on the desired CRTC state. Does |
303 | * Set a mode (originating from the kernel) on the desired CRTC state. Does |
304 | * not change any other state properties, including enable, active, or |
304 | * not change any other state properties, including enable, active, or |
305 | * mode_changed. |
305 | * mode_changed. |
306 | * |
306 | * |
307 | * RETURNS: |
307 | * RETURNS: |
308 | * Zero on success, error code on failure. Cannot return -EDEADLK. |
308 | * Zero on success, error code on failure. Cannot return -EDEADLK. |
309 | */ |
309 | */ |
310 | int drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state, |
310 | int drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state, |
311 | struct drm_display_mode *mode) |
311 | struct drm_display_mode *mode) |
312 | { |
312 | { |
313 | struct drm_mode_modeinfo umode; |
313 | struct drm_mode_modeinfo umode; |
314 | 314 | ||
315 | /* Early return for no change. */ |
315 | /* Early return for no change. */ |
316 | if (mode && memcmp(&state->mode, mode, sizeof(*mode)) == 0) |
316 | if (mode && memcmp(&state->mode, mode, sizeof(*mode)) == 0) |
317 | return 0; |
317 | return 0; |
318 | 318 | ||
319 | if (state->mode_blob) |
319 | if (state->mode_blob) |
320 | drm_property_unreference_blob(state->mode_blob); |
320 | drm_property_unreference_blob(state->mode_blob); |
321 | state->mode_blob = NULL; |
321 | state->mode_blob = NULL; |
322 | 322 | ||
323 | if (mode) { |
323 | if (mode) { |
324 | drm_mode_convert_to_umode(&umode, mode); |
324 | drm_mode_convert_to_umode(&umode, mode); |
325 | state->mode_blob = |
325 | state->mode_blob = |
326 | drm_property_create_blob(state->crtc->dev, |
326 | drm_property_create_blob(state->crtc->dev, |
327 | sizeof(umode), |
327 | sizeof(umode), |
328 | &umode); |
328 | &umode); |
329 | if (IS_ERR(state->mode_blob)) |
329 | if (IS_ERR(state->mode_blob)) |
330 | return PTR_ERR(state->mode_blob); |
330 | return PTR_ERR(state->mode_blob); |
331 | 331 | ||
332 | drm_mode_copy(&state->mode, mode); |
332 | drm_mode_copy(&state->mode, mode); |
333 | state->enable = true; |
333 | state->enable = true; |
334 | DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n", |
334 | DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n", |
335 | mode->name, state); |
335 | mode->name, state); |
336 | } else { |
336 | } else { |
337 | memset(&state->mode, 0, sizeof(state->mode)); |
337 | memset(&state->mode, 0, sizeof(state->mode)); |
338 | state->enable = false; |
338 | state->enable = false; |
339 | DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n", |
339 | DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n", |
340 | state); |
340 | state); |
341 | } |
341 | } |
342 | 342 | ||
343 | return 0; |
343 | return 0; |
344 | } |
344 | } |
345 | EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc); |
345 | EXPORT_SYMBOL(drm_atomic_set_mode_for_crtc); |
346 | 346 | ||
347 | /** |
347 | /** |
348 | * drm_atomic_set_mode_prop_for_crtc - set mode for CRTC |
348 | * drm_atomic_set_mode_prop_for_crtc - set mode for CRTC |
349 | * @state: the CRTC whose incoming state to update |
349 | * @state: the CRTC whose incoming state to update |
350 | * @blob: pointer to blob property to use for mode |
350 | * @blob: pointer to blob property to use for mode |
351 | * |
351 | * |
352 | * Set a mode (originating from a blob property) on the desired CRTC state. |
352 | * Set a mode (originating from a blob property) on the desired CRTC state. |
353 | * This function will take a reference on the blob property for the CRTC state, |
353 | * This function will take a reference on the blob property for the CRTC state, |
354 | * and release the reference held on the state's existing mode property, if any |
354 | * and release the reference held on the state's existing mode property, if any |
355 | * was set. |
355 | * was set. |
356 | * |
356 | * |
357 | * RETURNS: |
357 | * RETURNS: |
358 | * Zero on success, error code on failure. Cannot return -EDEADLK. |
358 | * Zero on success, error code on failure. Cannot return -EDEADLK. |
359 | */ |
359 | */ |
360 | int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, |
360 | int drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state, |
361 | struct drm_property_blob *blob) |
361 | struct drm_property_blob *blob) |
362 | { |
362 | { |
363 | if (blob == state->mode_blob) |
363 | if (blob == state->mode_blob) |
364 | return 0; |
364 | return 0; |
365 | 365 | ||
366 | if (state->mode_blob) |
366 | if (state->mode_blob) |
367 | drm_property_unreference_blob(state->mode_blob); |
367 | drm_property_unreference_blob(state->mode_blob); |
368 | state->mode_blob = NULL; |
368 | state->mode_blob = NULL; |
- | 369 | ||
- | 370 | memset(&state->mode, 0, sizeof(state->mode)); |
|
369 | 371 | ||
370 | if (blob) { |
372 | if (blob) { |
371 | if (blob->length != sizeof(struct drm_mode_modeinfo) || |
373 | if (blob->length != sizeof(struct drm_mode_modeinfo) || |
372 | drm_mode_convert_umode(&state->mode, |
374 | drm_mode_convert_umode(&state->mode, |
373 | (const struct drm_mode_modeinfo *) |
375 | (const struct drm_mode_modeinfo *) |
374 | blob->data)) |
376 | blob->data)) |
375 | return -EINVAL; |
377 | return -EINVAL; |
376 | 378 | ||
377 | state->mode_blob = drm_property_reference_blob(blob); |
379 | state->mode_blob = drm_property_reference_blob(blob); |
378 | state->enable = true; |
380 | state->enable = true; |
379 | DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n", |
381 | DRM_DEBUG_ATOMIC("Set [MODE:%s] for CRTC state %p\n", |
380 | state->mode.name, state); |
382 | state->mode.name, state); |
381 | } else { |
383 | } else { |
382 | memset(&state->mode, 0, sizeof(state->mode)); |
- | |
383 | state->enable = false; |
384 | state->enable = false; |
384 | DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n", |
385 | DRM_DEBUG_ATOMIC("Set [NOMODE] for CRTC state %p\n", |
385 | state); |
386 | state); |
386 | } |
387 | } |
387 | 388 | ||
388 | return 0; |
389 | return 0; |
389 | } |
390 | } |
390 | EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc); |
391 | EXPORT_SYMBOL(drm_atomic_set_mode_prop_for_crtc); |
391 | 392 | ||
392 | /** |
393 | /** |
393 | * drm_atomic_crtc_set_property - set property on CRTC |
394 | * drm_atomic_crtc_set_property - set property on CRTC |
394 | * @crtc: the drm CRTC to set a property on |
395 | * @crtc: the drm CRTC to set a property on |
395 | * @state: the state object to update with the new property value |
396 | * @state: the state object to update with the new property value |
396 | * @property: the property to set |
397 | * @property: the property to set |
397 | * @val: the new property value |
398 | * @val: the new property value |
398 | * |
399 | * |
399 | * Use this instead of calling crtc->atomic_set_property directly. |
400 | * Use this instead of calling crtc->atomic_set_property directly. |
400 | * This function handles generic/core properties and calls out to |
401 | * This function handles generic/core properties and calls out to |
401 | * driver's ->atomic_set_property() for driver properties. To ensure |
402 | * driver's ->atomic_set_property() for driver properties. To ensure |
402 | * consistent behavior you must call this function rather than the |
403 | * consistent behavior you must call this function rather than the |
403 | * driver hook directly. |
404 | * driver hook directly. |
404 | * |
405 | * |
405 | * RETURNS: |
406 | * RETURNS: |
406 | * Zero on success, error code on failure |
407 | * Zero on success, error code on failure |
407 | */ |
408 | */ |
408 | int drm_atomic_crtc_set_property(struct drm_crtc *crtc, |
409 | int drm_atomic_crtc_set_property(struct drm_crtc *crtc, |
409 | struct drm_crtc_state *state, struct drm_property *property, |
410 | struct drm_crtc_state *state, struct drm_property *property, |
410 | uint64_t val) |
411 | uint64_t val) |
411 | { |
412 | { |
412 | struct drm_device *dev = crtc->dev; |
413 | struct drm_device *dev = crtc->dev; |
413 | struct drm_mode_config *config = &dev->mode_config; |
414 | struct drm_mode_config *config = &dev->mode_config; |
414 | int ret; |
415 | int ret; |
415 | 416 | ||
416 | if (property == config->prop_active) |
417 | if (property == config->prop_active) |
417 | state->active = val; |
418 | state->active = val; |
418 | else if (property == config->prop_mode_id) { |
419 | else if (property == config->prop_mode_id) { |
419 | struct drm_property_blob *mode = |
420 | struct drm_property_blob *mode = |
420 | drm_property_lookup_blob(dev, val); |
421 | drm_property_lookup_blob(dev, val); |
421 | ret = drm_atomic_set_mode_prop_for_crtc(state, mode); |
422 | ret = drm_atomic_set_mode_prop_for_crtc(state, mode); |
422 | if (mode) |
423 | if (mode) |
423 | drm_property_unreference_blob(mode); |
424 | drm_property_unreference_blob(mode); |
424 | return ret; |
425 | return ret; |
425 | } |
426 | } |
426 | else if (crtc->funcs->atomic_set_property) |
427 | else if (crtc->funcs->atomic_set_property) |
427 | return crtc->funcs->atomic_set_property(crtc, state, property, val); |
428 | return crtc->funcs->atomic_set_property(crtc, state, property, val); |
428 | else |
429 | else |
429 | return -EINVAL; |
430 | return -EINVAL; |
430 | 431 | ||
431 | return 0; |
432 | return 0; |
432 | } |
433 | } |
433 | EXPORT_SYMBOL(drm_atomic_crtc_set_property); |
434 | EXPORT_SYMBOL(drm_atomic_crtc_set_property); |
434 | 435 | ||
435 | /* |
436 | /* |
436 | * This function handles generic/core properties and calls out to |
437 | * This function handles generic/core properties and calls out to |
437 | * driver's ->atomic_get_property() for driver properties. To ensure |
438 | * driver's ->atomic_get_property() for driver properties. To ensure |
438 | * consistent behavior you must call this function rather than the |
439 | * consistent behavior you must call this function rather than the |
439 | * driver hook directly. |
440 | * driver hook directly. |
440 | */ |
441 | */ |
441 | static int |
442 | static int |
442 | drm_atomic_crtc_get_property(struct drm_crtc *crtc, |
443 | drm_atomic_crtc_get_property(struct drm_crtc *crtc, |
443 | const struct drm_crtc_state *state, |
444 | const struct drm_crtc_state *state, |
444 | struct drm_property *property, uint64_t *val) |
445 | struct drm_property *property, uint64_t *val) |
445 | { |
446 | { |
446 | struct drm_device *dev = crtc->dev; |
447 | struct drm_device *dev = crtc->dev; |
447 | struct drm_mode_config *config = &dev->mode_config; |
448 | struct drm_mode_config *config = &dev->mode_config; |
448 | 449 | ||
449 | if (property == config->prop_active) |
450 | if (property == config->prop_active) |
450 | *val = state->active; |
451 | *val = state->active; |
451 | else if (property == config->prop_mode_id) |
452 | else if (property == config->prop_mode_id) |
452 | *val = (state->mode_blob) ? state->mode_blob->base.id : 0; |
453 | *val = (state->mode_blob) ? state->mode_blob->base.id : 0; |
453 | else if (crtc->funcs->atomic_get_property) |
454 | else if (crtc->funcs->atomic_get_property) |
454 | return crtc->funcs->atomic_get_property(crtc, state, property, val); |
455 | return crtc->funcs->atomic_get_property(crtc, state, property, val); |
455 | else |
456 | else |
456 | return -EINVAL; |
457 | return -EINVAL; |
457 | 458 | ||
458 | return 0; |
459 | return 0; |
459 | } |
460 | } |
460 | 461 | ||
461 | /** |
462 | /** |
462 | * drm_atomic_crtc_check - check crtc state |
463 | * drm_atomic_crtc_check - check crtc state |
463 | * @crtc: crtc to check |
464 | * @crtc: crtc to check |
464 | * @state: crtc state to check |
465 | * @state: crtc state to check |
465 | * |
466 | * |
466 | * Provides core sanity checks for crtc state. |
467 | * Provides core sanity checks for crtc state. |
467 | * |
468 | * |
468 | * RETURNS: |
469 | * RETURNS: |
469 | * Zero on success, error code on failure |
470 | * Zero on success, error code on failure |
470 | */ |
471 | */ |
471 | static int drm_atomic_crtc_check(struct drm_crtc *crtc, |
472 | static int drm_atomic_crtc_check(struct drm_crtc *crtc, |
472 | struct drm_crtc_state *state) |
473 | struct drm_crtc_state *state) |
473 | { |
474 | { |
474 | /* NOTE: we explicitly don't enforce constraints such as primary |
475 | /* NOTE: we explicitly don't enforce constraints such as primary |
475 | * layer covering entire screen, since that is something we want |
476 | * layer covering entire screen, since that is something we want |
476 | * to allow (on hw that supports it). For hw that does not, it |
477 | * to allow (on hw that supports it). For hw that does not, it |
477 | * should be checked in driver's crtc->atomic_check() vfunc. |
478 | * should be checked in driver's crtc->atomic_check() vfunc. |
478 | * |
479 | * |
479 | * TODO: Add generic modeset state checks once we support those. |
480 | * TODO: Add generic modeset state checks once we support those. |
480 | */ |
481 | */ |
481 | 482 | ||
482 | if (state->active && !state->enable) { |
483 | if (state->active && !state->enable) { |
483 | DRM_DEBUG_ATOMIC("[CRTC:%d] active without enabled\n", |
484 | DRM_DEBUG_ATOMIC("[CRTC:%d] active without enabled\n", |
484 | crtc->base.id); |
485 | crtc->base.id); |
485 | return -EINVAL; |
486 | return -EINVAL; |
486 | } |
487 | } |
487 | 488 | ||
488 | /* The state->enable vs. state->mode_blob checks can be WARN_ON, |
489 | /* The state->enable vs. state->mode_blob checks can be WARN_ON, |
489 | * as this is a kernel-internal detail that userspace should never |
490 | * as this is a kernel-internal detail that userspace should never |
490 | * be able to trigger. */ |
491 | * be able to trigger. */ |
491 | if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && |
492 | if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && |
492 | WARN_ON(state->enable && !state->mode_blob)) { |
493 | WARN_ON(state->enable && !state->mode_blob)) { |
493 | DRM_DEBUG_ATOMIC("[CRTC:%d] enabled without mode blob\n", |
494 | DRM_DEBUG_ATOMIC("[CRTC:%d] enabled without mode blob\n", |
494 | crtc->base.id); |
495 | crtc->base.id); |
495 | return -EINVAL; |
496 | return -EINVAL; |
496 | } |
497 | } |
497 | 498 | ||
498 | if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && |
499 | if (drm_core_check_feature(crtc->dev, DRIVER_ATOMIC) && |
499 | WARN_ON(!state->enable && state->mode_blob)) { |
500 | WARN_ON(!state->enable && state->mode_blob)) { |
500 | DRM_DEBUG_ATOMIC("[CRTC:%d] disabled with mode blob\n", |
501 | DRM_DEBUG_ATOMIC("[CRTC:%d] disabled with mode blob\n", |
501 | crtc->base.id); |
502 | crtc->base.id); |
502 | return -EINVAL; |
503 | return -EINVAL; |
503 | } |
504 | } |
504 | 505 | ||
505 | return 0; |
506 | return 0; |
506 | } |
507 | } |
507 | 508 | ||
508 | /** |
509 | /** |
509 | * drm_atomic_get_plane_state - get plane state |
510 | * drm_atomic_get_plane_state - get plane state |
510 | * @state: global atomic state object |
511 | * @state: global atomic state object |
511 | * @plane: plane to get state object for |
512 | * @plane: plane to get state object for |
512 | * |
513 | * |
513 | * This function returns the plane state for the given plane, allocating it if |
514 | * This function returns the plane state for the given plane, allocating it if |
514 | * needed. It will also grab the relevant plane lock to make sure that the state |
515 | * needed. It will also grab the relevant plane lock to make sure that the state |
515 | * is consistent. |
516 | * is consistent. |
516 | * |
517 | * |
517 | * Returns: |
518 | * Returns: |
518 | * |
519 | * |
519 | * Either the allocated state or the error code encoded into the pointer. When |
520 | * Either the allocated state or the error code encoded into the pointer. When |
520 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the |
521 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the |
521 | * entire atomic sequence must be restarted. All other errors are fatal. |
522 | * entire atomic sequence must be restarted. All other errors are fatal. |
522 | */ |
523 | */ |
523 | struct drm_plane_state * |
524 | struct drm_plane_state * |
524 | drm_atomic_get_plane_state(struct drm_atomic_state *state, |
525 | drm_atomic_get_plane_state(struct drm_atomic_state *state, |
525 | struct drm_plane *plane) |
526 | struct drm_plane *plane) |
526 | { |
527 | { |
527 | int ret, index = drm_plane_index(plane); |
528 | int ret, index = drm_plane_index(plane); |
528 | struct drm_plane_state *plane_state; |
529 | struct drm_plane_state *plane_state; |
529 | 530 | ||
530 | plane_state = drm_atomic_get_existing_plane_state(state, plane); |
531 | plane_state = drm_atomic_get_existing_plane_state(state, plane); |
531 | if (plane_state) |
532 | if (plane_state) |
532 | return plane_state; |
533 | return plane_state; |
533 | 534 | ||
534 | ret = drm_modeset_lock(&plane->mutex, state->acquire_ctx); |
535 | ret = drm_modeset_lock(&plane->mutex, state->acquire_ctx); |
535 | if (ret) |
536 | if (ret) |
536 | return ERR_PTR(ret); |
537 | return ERR_PTR(ret); |
537 | 538 | ||
538 | plane_state = plane->funcs->atomic_duplicate_state(plane); |
539 | plane_state = plane->funcs->atomic_duplicate_state(plane); |
539 | if (!plane_state) |
540 | if (!plane_state) |
540 | return ERR_PTR(-ENOMEM); |
541 | return ERR_PTR(-ENOMEM); |
541 | 542 | ||
542 | state->plane_states[index] = plane_state; |
543 | state->plane_states[index] = plane_state; |
543 | state->planes[index] = plane; |
544 | state->planes[index] = plane; |
544 | plane_state->state = state; |
545 | plane_state->state = state; |
545 | 546 | ||
546 | DRM_DEBUG_ATOMIC("Added [PLANE:%d] %p state to %p\n", |
547 | DRM_DEBUG_ATOMIC("Added [PLANE:%d] %p state to %p\n", |
547 | plane->base.id, plane_state, state); |
548 | plane->base.id, plane_state, state); |
548 | 549 | ||
549 | if (plane_state->crtc) { |
550 | if (plane_state->crtc) { |
550 | struct drm_crtc_state *crtc_state; |
551 | struct drm_crtc_state *crtc_state; |
551 | 552 | ||
552 | crtc_state = drm_atomic_get_crtc_state(state, |
553 | crtc_state = drm_atomic_get_crtc_state(state, |
553 | plane_state->crtc); |
554 | plane_state->crtc); |
554 | if (IS_ERR(crtc_state)) |
555 | if (IS_ERR(crtc_state)) |
555 | return ERR_CAST(crtc_state); |
556 | return ERR_CAST(crtc_state); |
556 | } |
557 | } |
557 | 558 | ||
558 | return plane_state; |
559 | return plane_state; |
559 | } |
560 | } |
560 | EXPORT_SYMBOL(drm_atomic_get_plane_state); |
561 | EXPORT_SYMBOL(drm_atomic_get_plane_state); |
561 | 562 | ||
562 | /** |
563 | /** |
563 | * drm_atomic_plane_set_property - set property on plane |
564 | * drm_atomic_plane_set_property - set property on plane |
564 | * @plane: the drm plane to set a property on |
565 | * @plane: the drm plane to set a property on |
565 | * @state: the state object to update with the new property value |
566 | * @state: the state object to update with the new property value |
566 | * @property: the property to set |
567 | * @property: the property to set |
567 | * @val: the new property value |
568 | * @val: the new property value |
568 | * |
569 | * |
569 | * Use this instead of calling plane->atomic_set_property directly. |
570 | * Use this instead of calling plane->atomic_set_property directly. |
570 | * This function handles generic/core properties and calls out to |
571 | * This function handles generic/core properties and calls out to |
571 | * driver's ->atomic_set_property() for driver properties. To ensure |
572 | * driver's ->atomic_set_property() for driver properties. To ensure |
572 | * consistent behavior you must call this function rather than the |
573 | * consistent behavior you must call this function rather than the |
573 | * driver hook directly. |
574 | * driver hook directly. |
574 | * |
575 | * |
575 | * RETURNS: |
576 | * RETURNS: |
576 | * Zero on success, error code on failure |
577 | * Zero on success, error code on failure |
577 | */ |
578 | */ |
578 | int drm_atomic_plane_set_property(struct drm_plane *plane, |
579 | int drm_atomic_plane_set_property(struct drm_plane *plane, |
579 | struct drm_plane_state *state, struct drm_property *property, |
580 | struct drm_plane_state *state, struct drm_property *property, |
580 | uint64_t val) |
581 | uint64_t val) |
581 | { |
582 | { |
582 | struct drm_device *dev = plane->dev; |
583 | struct drm_device *dev = plane->dev; |
583 | struct drm_mode_config *config = &dev->mode_config; |
584 | struct drm_mode_config *config = &dev->mode_config; |
584 | 585 | ||
585 | if (property == config->prop_fb_id) { |
586 | if (property == config->prop_fb_id) { |
586 | struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, val); |
587 | struct drm_framebuffer *fb = drm_framebuffer_lookup(dev, val); |
587 | drm_atomic_set_fb_for_plane(state, fb); |
588 | drm_atomic_set_fb_for_plane(state, fb); |
588 | if (fb) |
589 | if (fb) |
589 | drm_framebuffer_unreference(fb); |
590 | drm_framebuffer_unreference(fb); |
590 | } else if (property == config->prop_crtc_id) { |
591 | } else if (property == config->prop_crtc_id) { |
591 | struct drm_crtc *crtc = drm_crtc_find(dev, val); |
592 | struct drm_crtc *crtc = drm_crtc_find(dev, val); |
592 | return drm_atomic_set_crtc_for_plane(state, crtc); |
593 | return drm_atomic_set_crtc_for_plane(state, crtc); |
593 | } else if (property == config->prop_crtc_x) { |
594 | } else if (property == config->prop_crtc_x) { |
594 | state->crtc_x = U642I64(val); |
595 | state->crtc_x = U642I64(val); |
595 | } else if (property == config->prop_crtc_y) { |
596 | } else if (property == config->prop_crtc_y) { |
596 | state->crtc_y = U642I64(val); |
597 | state->crtc_y = U642I64(val); |
597 | } else if (property == config->prop_crtc_w) { |
598 | } else if (property == config->prop_crtc_w) { |
598 | state->crtc_w = val; |
599 | state->crtc_w = val; |
599 | } else if (property == config->prop_crtc_h) { |
600 | } else if (property == config->prop_crtc_h) { |
600 | state->crtc_h = val; |
601 | state->crtc_h = val; |
601 | } else if (property == config->prop_src_x) { |
602 | } else if (property == config->prop_src_x) { |
602 | state->src_x = val; |
603 | state->src_x = val; |
603 | } else if (property == config->prop_src_y) { |
604 | } else if (property == config->prop_src_y) { |
604 | state->src_y = val; |
605 | state->src_y = val; |
605 | } else if (property == config->prop_src_w) { |
606 | } else if (property == config->prop_src_w) { |
606 | state->src_w = val; |
607 | state->src_w = val; |
607 | } else if (property == config->prop_src_h) { |
608 | } else if (property == config->prop_src_h) { |
608 | state->src_h = val; |
609 | state->src_h = val; |
609 | } else if (property == config->rotation_property) { |
610 | } else if (property == config->rotation_property) { |
610 | state->rotation = val; |
611 | state->rotation = val; |
611 | } else if (plane->funcs->atomic_set_property) { |
612 | } else if (plane->funcs->atomic_set_property) { |
612 | return plane->funcs->atomic_set_property(plane, state, |
613 | return plane->funcs->atomic_set_property(plane, state, |
613 | property, val); |
614 | property, val); |
614 | } else { |
615 | } else { |
615 | return -EINVAL; |
616 | return -EINVAL; |
616 | } |
617 | } |
617 | 618 | ||
618 | return 0; |
619 | return 0; |
619 | } |
620 | } |
620 | EXPORT_SYMBOL(drm_atomic_plane_set_property); |
621 | EXPORT_SYMBOL(drm_atomic_plane_set_property); |
621 | 622 | ||
622 | /* |
623 | /* |
623 | * This function handles generic/core properties and calls out to |
624 | * This function handles generic/core properties and calls out to |
624 | * driver's ->atomic_get_property() for driver properties. To ensure |
625 | * driver's ->atomic_get_property() for driver properties. To ensure |
625 | * consistent behavior you must call this function rather than the |
626 | * consistent behavior you must call this function rather than the |
626 | * driver hook directly. |
627 | * driver hook directly. |
627 | */ |
628 | */ |
628 | static int |
629 | static int |
629 | drm_atomic_plane_get_property(struct drm_plane *plane, |
630 | drm_atomic_plane_get_property(struct drm_plane *plane, |
630 | const struct drm_plane_state *state, |
631 | const struct drm_plane_state *state, |
631 | struct drm_property *property, uint64_t *val) |
632 | struct drm_property *property, uint64_t *val) |
632 | { |
633 | { |
633 | struct drm_device *dev = plane->dev; |
634 | struct drm_device *dev = plane->dev; |
634 | struct drm_mode_config *config = &dev->mode_config; |
635 | struct drm_mode_config *config = &dev->mode_config; |
635 | 636 | ||
636 | if (property == config->prop_fb_id) { |
637 | if (property == config->prop_fb_id) { |
637 | *val = (state->fb) ? state->fb->base.id : 0; |
638 | *val = (state->fb) ? state->fb->base.id : 0; |
638 | } else if (property == config->prop_crtc_id) { |
639 | } else if (property == config->prop_crtc_id) { |
639 | *val = (state->crtc) ? state->crtc->base.id : 0; |
640 | *val = (state->crtc) ? state->crtc->base.id : 0; |
640 | } else if (property == config->prop_crtc_x) { |
641 | } else if (property == config->prop_crtc_x) { |
641 | *val = I642U64(state->crtc_x); |
642 | *val = I642U64(state->crtc_x); |
642 | } else if (property == config->prop_crtc_y) { |
643 | } else if (property == config->prop_crtc_y) { |
643 | *val = I642U64(state->crtc_y); |
644 | *val = I642U64(state->crtc_y); |
644 | } else if (property == config->prop_crtc_w) { |
645 | } else if (property == config->prop_crtc_w) { |
645 | *val = state->crtc_w; |
646 | *val = state->crtc_w; |
646 | } else if (property == config->prop_crtc_h) { |
647 | } else if (property == config->prop_crtc_h) { |
647 | *val = state->crtc_h; |
648 | *val = state->crtc_h; |
648 | } else if (property == config->prop_src_x) { |
649 | } else if (property == config->prop_src_x) { |
649 | *val = state->src_x; |
650 | *val = state->src_x; |
650 | } else if (property == config->prop_src_y) { |
651 | } else if (property == config->prop_src_y) { |
651 | *val = state->src_y; |
652 | *val = state->src_y; |
652 | } else if (property == config->prop_src_w) { |
653 | } else if (property == config->prop_src_w) { |
653 | *val = state->src_w; |
654 | *val = state->src_w; |
654 | } else if (property == config->prop_src_h) { |
655 | } else if (property == config->prop_src_h) { |
655 | *val = state->src_h; |
656 | *val = state->src_h; |
656 | } else if (property == config->rotation_property) { |
657 | } else if (property == config->rotation_property) { |
657 | *val = state->rotation; |
658 | *val = state->rotation; |
658 | } else if (plane->funcs->atomic_get_property) { |
659 | } else if (plane->funcs->atomic_get_property) { |
659 | return plane->funcs->atomic_get_property(plane, state, property, val); |
660 | return plane->funcs->atomic_get_property(plane, state, property, val); |
660 | } else { |
661 | } else { |
661 | return -EINVAL; |
662 | return -EINVAL; |
662 | } |
663 | } |
663 | 664 | ||
664 | return 0; |
665 | return 0; |
665 | } |
666 | } |
666 | 667 | ||
667 | static bool |
668 | static bool |
668 | plane_switching_crtc(struct drm_atomic_state *state, |
669 | plane_switching_crtc(struct drm_atomic_state *state, |
669 | struct drm_plane *plane, |
670 | struct drm_plane *plane, |
670 | struct drm_plane_state *plane_state) |
671 | struct drm_plane_state *plane_state) |
671 | { |
672 | { |
672 | if (!plane->state->crtc || !plane_state->crtc) |
673 | if (!plane->state->crtc || !plane_state->crtc) |
673 | return false; |
674 | return false; |
674 | 675 | ||
675 | if (plane->state->crtc == plane_state->crtc) |
676 | if (plane->state->crtc == plane_state->crtc) |
676 | return false; |
677 | return false; |
677 | 678 | ||
678 | /* This could be refined, but currently there's no helper or driver code |
679 | /* This could be refined, but currently there's no helper or driver code |
679 | * to implement direct switching of active planes nor userspace to take |
680 | * to implement direct switching of active planes nor userspace to take |
680 | * advantage of more direct plane switching without the intermediate |
681 | * advantage of more direct plane switching without the intermediate |
681 | * full OFF state. |
682 | * full OFF state. |
682 | */ |
683 | */ |
683 | return true; |
684 | return true; |
684 | } |
685 | } |
685 | 686 | ||
686 | /** |
687 | /** |
687 | * drm_atomic_plane_check - check plane state |
688 | * drm_atomic_plane_check - check plane state |
688 | * @plane: plane to check |
689 | * @plane: plane to check |
689 | * @state: plane state to check |
690 | * @state: plane state to check |
690 | * |
691 | * |
691 | * Provides core sanity checks for plane state. |
692 | * Provides core sanity checks for plane state. |
692 | * |
693 | * |
693 | * RETURNS: |
694 | * RETURNS: |
694 | * Zero on success, error code on failure |
695 | * Zero on success, error code on failure |
695 | */ |
696 | */ |
696 | static int drm_atomic_plane_check(struct drm_plane *plane, |
697 | static int drm_atomic_plane_check(struct drm_plane *plane, |
697 | struct drm_plane_state *state) |
698 | struct drm_plane_state *state) |
698 | { |
699 | { |
699 | unsigned int fb_width, fb_height; |
700 | unsigned int fb_width, fb_height; |
700 | int ret; |
701 | int ret; |
701 | 702 | ||
702 | /* either *both* CRTC and FB must be set, or neither */ |
703 | /* either *both* CRTC and FB must be set, or neither */ |
703 | if (WARN_ON(state->crtc && !state->fb)) { |
704 | if (WARN_ON(state->crtc && !state->fb)) { |
704 | DRM_DEBUG_ATOMIC("CRTC set but no FB\n"); |
705 | DRM_DEBUG_ATOMIC("CRTC set but no FB\n"); |
705 | return -EINVAL; |
706 | return -EINVAL; |
706 | } else if (WARN_ON(state->fb && !state->crtc)) { |
707 | } else if (WARN_ON(state->fb && !state->crtc)) { |
707 | DRM_DEBUG_ATOMIC("FB set but no CRTC\n"); |
708 | DRM_DEBUG_ATOMIC("FB set but no CRTC\n"); |
708 | return -EINVAL; |
709 | return -EINVAL; |
709 | } |
710 | } |
710 | 711 | ||
711 | /* if disabled, we don't care about the rest of the state: */ |
712 | /* if disabled, we don't care about the rest of the state: */ |
712 | if (!state->crtc) |
713 | if (!state->crtc) |
713 | return 0; |
714 | return 0; |
714 | 715 | ||
715 | /* Check whether this plane is usable on this CRTC */ |
716 | /* Check whether this plane is usable on this CRTC */ |
716 | if (!(plane->possible_crtcs & drm_crtc_mask(state->crtc))) { |
717 | if (!(plane->possible_crtcs & drm_crtc_mask(state->crtc))) { |
717 | DRM_DEBUG_ATOMIC("Invalid crtc for plane\n"); |
718 | DRM_DEBUG_ATOMIC("Invalid crtc for plane\n"); |
718 | return -EINVAL; |
719 | return -EINVAL; |
719 | } |
720 | } |
720 | 721 | ||
721 | /* Check whether this plane supports the fb pixel format. */ |
722 | /* Check whether this plane supports the fb pixel format. */ |
722 | ret = drm_plane_check_pixel_format(plane, state->fb->pixel_format); |
723 | ret = drm_plane_check_pixel_format(plane, state->fb->pixel_format); |
723 | if (ret) { |
724 | if (ret) { |
724 | DRM_DEBUG_ATOMIC("Invalid pixel format %s\n", |
725 | DRM_DEBUG_ATOMIC("Invalid pixel format %s\n", |
725 | drm_get_format_name(state->fb->pixel_format)); |
726 | drm_get_format_name(state->fb->pixel_format)); |
726 | return ret; |
727 | return ret; |
727 | } |
728 | } |
728 | 729 | ||
729 | /* Give drivers some help against integer overflows */ |
730 | /* Give drivers some help against integer overflows */ |
730 | if (state->crtc_w > INT_MAX || |
731 | if (state->crtc_w > INT_MAX || |
731 | state->crtc_x > INT_MAX - (int32_t) state->crtc_w || |
732 | state->crtc_x > INT_MAX - (int32_t) state->crtc_w || |
732 | state->crtc_h > INT_MAX || |
733 | state->crtc_h > INT_MAX || |
733 | state->crtc_y > INT_MAX - (int32_t) state->crtc_h) { |
734 | state->crtc_y > INT_MAX - (int32_t) state->crtc_h) { |
734 | DRM_DEBUG_ATOMIC("Invalid CRTC coordinates %ux%u+%d+%d\n", |
735 | DRM_DEBUG_ATOMIC("Invalid CRTC coordinates %ux%u+%d+%d\n", |
735 | state->crtc_w, state->crtc_h, |
736 | state->crtc_w, state->crtc_h, |
736 | state->crtc_x, state->crtc_y); |
737 | state->crtc_x, state->crtc_y); |
737 | return -ERANGE; |
738 | return -ERANGE; |
738 | } |
739 | } |
739 | 740 | ||
740 | fb_width = state->fb->width << 16; |
741 | fb_width = state->fb->width << 16; |
741 | fb_height = state->fb->height << 16; |
742 | fb_height = state->fb->height << 16; |
742 | 743 | ||
743 | /* Make sure source coordinates are inside the fb. */ |
744 | /* Make sure source coordinates are inside the fb. */ |
744 | if (state->src_w > fb_width || |
745 | if (state->src_w > fb_width || |
745 | state->src_x > fb_width - state->src_w || |
746 | state->src_x > fb_width - state->src_w || |
746 | state->src_h > fb_height || |
747 | state->src_h > fb_height || |
747 | state->src_y > fb_height - state->src_h) { |
748 | state->src_y > fb_height - state->src_h) { |
748 | DRM_DEBUG_ATOMIC("Invalid source coordinates " |
749 | DRM_DEBUG_ATOMIC("Invalid source coordinates " |
749 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", |
750 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", |
750 | state->src_w >> 16, ((state->src_w & 0xffff) * 15625) >> 10, |
751 | state->src_w >> 16, ((state->src_w & 0xffff) * 15625) >> 10, |
751 | state->src_h >> 16, ((state->src_h & 0xffff) * 15625) >> 10, |
752 | state->src_h >> 16, ((state->src_h & 0xffff) * 15625) >> 10, |
752 | state->src_x >> 16, ((state->src_x & 0xffff) * 15625) >> 10, |
753 | state->src_x >> 16, ((state->src_x & 0xffff) * 15625) >> 10, |
753 | state->src_y >> 16, ((state->src_y & 0xffff) * 15625) >> 10); |
754 | state->src_y >> 16, ((state->src_y & 0xffff) * 15625) >> 10); |
754 | return -ENOSPC; |
755 | return -ENOSPC; |
755 | } |
756 | } |
756 | 757 | ||
757 | if (plane_switching_crtc(state->state, plane, state)) { |
758 | if (plane_switching_crtc(state->state, plane, state)) { |
758 | DRM_DEBUG_ATOMIC("[PLANE:%d] switching CRTC directly\n", |
759 | DRM_DEBUG_ATOMIC("[PLANE:%d] switching CRTC directly\n", |
759 | plane->base.id); |
760 | plane->base.id); |
760 | return -EINVAL; |
761 | return -EINVAL; |
761 | } |
762 | } |
762 | 763 | ||
763 | return 0; |
764 | return 0; |
764 | } |
765 | } |
765 | 766 | ||
766 | /** |
767 | /** |
767 | * drm_atomic_get_connector_state - get connector state |
768 | * drm_atomic_get_connector_state - get connector state |
768 | * @state: global atomic state object |
769 | * @state: global atomic state object |
769 | * @connector: connector to get state object for |
770 | * @connector: connector to get state object for |
770 | * |
771 | * |
771 | * This function returns the connector state for the given connector, |
772 | * This function returns the connector state for the given connector, |
772 | * allocating it if needed. It will also grab the relevant connector lock to |
773 | * allocating it if needed. It will also grab the relevant connector lock to |
773 | * make sure that the state is consistent. |
774 | * make sure that the state is consistent. |
774 | * |
775 | * |
775 | * Returns: |
776 | * Returns: |
776 | * |
777 | * |
777 | * Either the allocated state or the error code encoded into the pointer. When |
778 | * Either the allocated state or the error code encoded into the pointer. When |
778 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the |
779 | * the error is EDEADLK then the w/w mutex code has detected a deadlock and the |
779 | * entire atomic sequence must be restarted. All other errors are fatal. |
780 | * entire atomic sequence must be restarted. All other errors are fatal. |
780 | */ |
781 | */ |
781 | struct drm_connector_state * |
782 | struct drm_connector_state * |
782 | drm_atomic_get_connector_state(struct drm_atomic_state *state, |
783 | drm_atomic_get_connector_state(struct drm_atomic_state *state, |
783 | struct drm_connector *connector) |
784 | struct drm_connector *connector) |
784 | { |
785 | { |
785 | int ret, index; |
786 | int ret, index; |
786 | struct drm_mode_config *config = &connector->dev->mode_config; |
787 | struct drm_mode_config *config = &connector->dev->mode_config; |
787 | struct drm_connector_state *connector_state; |
788 | struct drm_connector_state *connector_state; |
788 | 789 | ||
789 | ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx); |
790 | ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx); |
790 | if (ret) |
791 | if (ret) |
791 | return ERR_PTR(ret); |
792 | return ERR_PTR(ret); |
792 | 793 | ||
793 | index = drm_connector_index(connector); |
794 | index = drm_connector_index(connector); |
794 | 795 | ||
795 | /* |
796 | /* |
796 | * Construction of atomic state updates can race with a connector |
797 | * Construction of atomic state updates can race with a connector |
797 | * hot-add which might overflow. In this case flip the table and just |
798 | * hot-add which might overflow. In this case flip the table and just |
798 | * restart the entire ioctl - no one is fast enough to livelock a cpu |
799 | * restart the entire ioctl - no one is fast enough to livelock a cpu |
799 | * with physical hotplug events anyway. |
800 | * with physical hotplug events anyway. |
800 | * |
801 | * |
801 | * Note that we only grab the indexes once we have the right lock to |
802 | * Note that we only grab the indexes once we have the right lock to |
802 | * prevent hotplug/unplugging of connectors. So removal is no problem, |
803 | * prevent hotplug/unplugging of connectors. So removal is no problem, |
803 | * at most the array is a bit too large. |
804 | * at most the array is a bit too large. |
804 | */ |
805 | */ |
805 | if (index >= state->num_connector) { |
806 | if (index >= state->num_connector) { |
806 | DRM_DEBUG_ATOMIC("Hot-added connector would overflow state array, restarting\n"); |
807 | DRM_DEBUG_ATOMIC("Hot-added connector would overflow state array, restarting\n"); |
807 | return ERR_PTR(-EAGAIN); |
808 | return ERR_PTR(-EAGAIN); |
808 | } |
809 | } |
809 | 810 | ||
810 | if (state->connector_states[index]) |
811 | if (state->connector_states[index]) |
811 | return state->connector_states[index]; |
812 | return state->connector_states[index]; |
812 | 813 | ||
813 | connector_state = connector->funcs->atomic_duplicate_state(connector); |
814 | connector_state = connector->funcs->atomic_duplicate_state(connector); |
814 | if (!connector_state) |
815 | if (!connector_state) |
815 | return ERR_PTR(-ENOMEM); |
816 | return ERR_PTR(-ENOMEM); |
816 | 817 | ||
817 | state->connector_states[index] = connector_state; |
818 | state->connector_states[index] = connector_state; |
818 | state->connectors[index] = connector; |
819 | state->connectors[index] = connector; |
819 | connector_state->state = state; |
820 | connector_state->state = state; |
820 | 821 | ||
821 | DRM_DEBUG_ATOMIC("Added [CONNECTOR:%d] %p state to %p\n", |
822 | DRM_DEBUG_ATOMIC("Added [CONNECTOR:%d] %p state to %p\n", |
822 | connector->base.id, connector_state, state); |
823 | connector->base.id, connector_state, state); |
823 | 824 | ||
824 | if (connector_state->crtc) { |
825 | if (connector_state->crtc) { |
825 | struct drm_crtc_state *crtc_state; |
826 | struct drm_crtc_state *crtc_state; |
826 | 827 | ||
827 | crtc_state = drm_atomic_get_crtc_state(state, |
828 | crtc_state = drm_atomic_get_crtc_state(state, |
828 | connector_state->crtc); |
829 | connector_state->crtc); |
829 | if (IS_ERR(crtc_state)) |
830 | if (IS_ERR(crtc_state)) |
830 | return ERR_CAST(crtc_state); |
831 | return ERR_CAST(crtc_state); |
831 | } |
832 | } |
832 | 833 | ||
833 | return connector_state; |
834 | return connector_state; |
834 | } |
835 | } |
835 | EXPORT_SYMBOL(drm_atomic_get_connector_state); |
836 | EXPORT_SYMBOL(drm_atomic_get_connector_state); |
836 | 837 | ||
837 | /** |
838 | /** |
838 | * drm_atomic_connector_set_property - set property on connector. |
839 | * drm_atomic_connector_set_property - set property on connector. |
839 | * @connector: the drm connector to set a property on |
840 | * @connector: the drm connector to set a property on |
840 | * @state: the state object to update with the new property value |
841 | * @state: the state object to update with the new property value |
841 | * @property: the property to set |
842 | * @property: the property to set |
842 | * @val: the new property value |
843 | * @val: the new property value |
843 | * |
844 | * |
844 | * Use this instead of calling connector->atomic_set_property directly. |
845 | * Use this instead of calling connector->atomic_set_property directly. |
845 | * This function handles generic/core properties and calls out to |
846 | * This function handles generic/core properties and calls out to |
846 | * driver's ->atomic_set_property() for driver properties. To ensure |
847 | * driver's ->atomic_set_property() for driver properties. To ensure |
847 | * consistent behavior you must call this function rather than the |
848 | * consistent behavior you must call this function rather than the |
848 | * driver hook directly. |
849 | * driver hook directly. |
849 | * |
850 | * |
850 | * RETURNS: |
851 | * RETURNS: |
851 | * Zero on success, error code on failure |
852 | * Zero on success, error code on failure |
852 | */ |
853 | */ |
853 | int drm_atomic_connector_set_property(struct drm_connector *connector, |
854 | int drm_atomic_connector_set_property(struct drm_connector *connector, |
854 | struct drm_connector_state *state, struct drm_property *property, |
855 | struct drm_connector_state *state, struct drm_property *property, |
855 | uint64_t val) |
856 | uint64_t val) |
856 | { |
857 | { |
857 | struct drm_device *dev = connector->dev; |
858 | struct drm_device *dev = connector->dev; |
858 | struct drm_mode_config *config = &dev->mode_config; |
859 | struct drm_mode_config *config = &dev->mode_config; |
859 | 860 | ||
860 | if (property == config->prop_crtc_id) { |
861 | if (property == config->prop_crtc_id) { |
861 | struct drm_crtc *crtc = drm_crtc_find(dev, val); |
862 | struct drm_crtc *crtc = drm_crtc_find(dev, val); |
862 | return drm_atomic_set_crtc_for_connector(state, crtc); |
863 | return drm_atomic_set_crtc_for_connector(state, crtc); |
863 | } else if (property == config->dpms_property) { |
864 | } else if (property == config->dpms_property) { |
864 | /* setting DPMS property requires special handling, which |
865 | /* setting DPMS property requires special handling, which |
865 | * is done in legacy setprop path for us. Disallow (for |
866 | * is done in legacy setprop path for us. Disallow (for |
866 | * now?) atomic writes to DPMS property: |
867 | * now?) atomic writes to DPMS property: |
867 | */ |
868 | */ |
868 | return -EINVAL; |
869 | return -EINVAL; |
869 | } else if (connector->funcs->atomic_set_property) { |
870 | } else if (connector->funcs->atomic_set_property) { |
870 | return connector->funcs->atomic_set_property(connector, |
871 | return connector->funcs->atomic_set_property(connector, |
871 | state, property, val); |
872 | state, property, val); |
872 | } else { |
873 | } else { |
873 | return -EINVAL; |
874 | return -EINVAL; |
874 | } |
875 | } |
875 | } |
876 | } |
876 | EXPORT_SYMBOL(drm_atomic_connector_set_property); |
877 | EXPORT_SYMBOL(drm_atomic_connector_set_property); |
877 | 878 | ||
878 | /* |
879 | /* |
879 | * This function handles generic/core properties and calls out to |
880 | * This function handles generic/core properties and calls out to |
880 | * driver's ->atomic_get_property() for driver properties. To ensure |
881 | * driver's ->atomic_get_property() for driver properties. To ensure |
881 | * consistent behavior you must call this function rather than the |
882 | * consistent behavior you must call this function rather than the |
882 | * driver hook directly. |
883 | * driver hook directly. |
883 | */ |
884 | */ |
884 | static int |
885 | static int |
885 | drm_atomic_connector_get_property(struct drm_connector *connector, |
886 | drm_atomic_connector_get_property(struct drm_connector *connector, |
886 | const struct drm_connector_state *state, |
887 | const struct drm_connector_state *state, |
887 | struct drm_property *property, uint64_t *val) |
888 | struct drm_property *property, uint64_t *val) |
888 | { |
889 | { |
889 | struct drm_device *dev = connector->dev; |
890 | struct drm_device *dev = connector->dev; |
890 | struct drm_mode_config *config = &dev->mode_config; |
891 | struct drm_mode_config *config = &dev->mode_config; |
891 | 892 | ||
892 | if (property == config->prop_crtc_id) { |
893 | if (property == config->prop_crtc_id) { |
893 | *val = (state->crtc) ? state->crtc->base.id : 0; |
894 | *val = (state->crtc) ? state->crtc->base.id : 0; |
894 | } else if (property == config->dpms_property) { |
895 | } else if (property == config->dpms_property) { |
895 | *val = connector->dpms; |
896 | *val = connector->dpms; |
896 | } else if (connector->funcs->atomic_get_property) { |
897 | } else if (connector->funcs->atomic_get_property) { |
897 | return connector->funcs->atomic_get_property(connector, |
898 | return connector->funcs->atomic_get_property(connector, |
898 | state, property, val); |
899 | state, property, val); |
899 | } else { |
900 | } else { |
900 | return -EINVAL; |
901 | return -EINVAL; |
901 | } |
902 | } |
902 | 903 | ||
903 | return 0; |
904 | return 0; |
904 | } |
905 | } |
905 | 906 | ||
906 | int drm_atomic_get_property(struct drm_mode_object *obj, |
907 | int drm_atomic_get_property(struct drm_mode_object *obj, |
907 | struct drm_property *property, uint64_t *val) |
908 | struct drm_property *property, uint64_t *val) |
908 | { |
909 | { |
909 | struct drm_device *dev = property->dev; |
910 | struct drm_device *dev = property->dev; |
910 | int ret; |
911 | int ret; |
911 | 912 | ||
912 | switch (obj->type) { |
913 | switch (obj->type) { |
913 | case DRM_MODE_OBJECT_CONNECTOR: { |
914 | case DRM_MODE_OBJECT_CONNECTOR: { |
914 | struct drm_connector *connector = obj_to_connector(obj); |
915 | struct drm_connector *connector = obj_to_connector(obj); |
915 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
916 | WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); |
916 | ret = drm_atomic_connector_get_property(connector, |
917 | ret = drm_atomic_connector_get_property(connector, |
917 | connector->state, property, val); |
918 | connector->state, property, val); |
918 | break; |
919 | break; |
919 | } |
920 | } |
920 | case DRM_MODE_OBJECT_CRTC: { |
921 | case DRM_MODE_OBJECT_CRTC: { |
921 | struct drm_crtc *crtc = obj_to_crtc(obj); |
922 | struct drm_crtc *crtc = obj_to_crtc(obj); |
922 | WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); |
923 | WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); |
923 | ret = drm_atomic_crtc_get_property(crtc, |
924 | ret = drm_atomic_crtc_get_property(crtc, |
924 | crtc->state, property, val); |
925 | crtc->state, property, val); |
925 | break; |
926 | break; |
926 | } |
927 | } |
927 | case DRM_MODE_OBJECT_PLANE: { |
928 | case DRM_MODE_OBJECT_PLANE: { |
928 | struct drm_plane *plane = obj_to_plane(obj); |
929 | struct drm_plane *plane = obj_to_plane(obj); |
929 | WARN_ON(!drm_modeset_is_locked(&plane->mutex)); |
930 | WARN_ON(!drm_modeset_is_locked(&plane->mutex)); |
930 | ret = drm_atomic_plane_get_property(plane, |
931 | ret = drm_atomic_plane_get_property(plane, |
931 | plane->state, property, val); |
932 | plane->state, property, val); |
932 | break; |
933 | break; |
933 | } |
934 | } |
934 | default: |
935 | default: |
935 | ret = -EINVAL; |
936 | ret = -EINVAL; |
936 | break; |
937 | break; |
937 | } |
938 | } |
938 | 939 | ||
939 | return ret; |
940 | return ret; |
940 | } |
941 | } |
941 | 942 | ||
942 | /** |
943 | /** |
943 | * drm_atomic_set_crtc_for_plane - set crtc for plane |
944 | * drm_atomic_set_crtc_for_plane - set crtc for plane |
944 | * @plane_state: the plane whose incoming state to update |
945 | * @plane_state: the plane whose incoming state to update |
945 | * @crtc: crtc to use for the plane |
946 | * @crtc: crtc to use for the plane |
946 | * |
947 | * |
947 | * Changing the assigned crtc for a plane requires us to grab the lock and state |
948 | * Changing the assigned crtc for a plane requires us to grab the lock and state |
948 | * for the new crtc, as needed. This function takes care of all these details |
949 | * for the new crtc, as needed. This function takes care of all these details |
949 | * besides updating the pointer in the state object itself. |
950 | * besides updating the pointer in the state object itself. |
950 | * |
951 | * |
951 | * Returns: |
952 | * Returns: |
952 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK |
953 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK |
953 | * then the w/w mutex code has detected a deadlock and the entire atomic |
954 | * then the w/w mutex code has detected a deadlock and the entire atomic |
954 | * sequence must be restarted. All other errors are fatal. |
955 | * sequence must be restarted. All other errors are fatal. |
955 | */ |
956 | */ |
956 | int |
957 | int |
957 | drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state, |
958 | drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state, |
958 | struct drm_crtc *crtc) |
959 | struct drm_crtc *crtc) |
959 | { |
960 | { |
960 | struct drm_plane *plane = plane_state->plane; |
961 | struct drm_plane *plane = plane_state->plane; |
961 | struct drm_crtc_state *crtc_state; |
962 | struct drm_crtc_state *crtc_state; |
962 | 963 | ||
963 | if (plane_state->crtc) { |
964 | if (plane_state->crtc) { |
964 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, |
965 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, |
965 | plane_state->crtc); |
966 | plane_state->crtc); |
966 | if (WARN_ON(IS_ERR(crtc_state))) |
967 | if (WARN_ON(IS_ERR(crtc_state))) |
967 | return PTR_ERR(crtc_state); |
968 | return PTR_ERR(crtc_state); |
968 | 969 | ||
969 | crtc_state->plane_mask &= ~(1 << drm_plane_index(plane)); |
970 | crtc_state->plane_mask &= ~(1 << drm_plane_index(plane)); |
970 | } |
971 | } |
971 | 972 | ||
972 | plane_state->crtc = crtc; |
973 | plane_state->crtc = crtc; |
973 | 974 | ||
974 | if (crtc) { |
975 | if (crtc) { |
975 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, |
976 | crtc_state = drm_atomic_get_crtc_state(plane_state->state, |
976 | crtc); |
977 | crtc); |
977 | if (IS_ERR(crtc_state)) |
978 | if (IS_ERR(crtc_state)) |
978 | return PTR_ERR(crtc_state); |
979 | return PTR_ERR(crtc_state); |
979 | crtc_state->plane_mask |= (1 << drm_plane_index(plane)); |
980 | crtc_state->plane_mask |= (1 << drm_plane_index(plane)); |
980 | } |
981 | } |
981 | 982 | ||
982 | if (crtc) |
983 | if (crtc) |
983 | DRM_DEBUG_ATOMIC("Link plane state %p to [CRTC:%d]\n", |
984 | DRM_DEBUG_ATOMIC("Link plane state %p to [CRTC:%d]\n", |
984 | plane_state, crtc->base.id); |
985 | plane_state, crtc->base.id); |
985 | else |
986 | else |
986 | DRM_DEBUG_ATOMIC("Link plane state %p to [NOCRTC]\n", |
987 | DRM_DEBUG_ATOMIC("Link plane state %p to [NOCRTC]\n", |
987 | plane_state); |
988 | plane_state); |
988 | 989 | ||
989 | return 0; |
990 | return 0; |
990 | } |
991 | } |
991 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_plane); |
992 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_plane); |
992 | 993 | ||
993 | /** |
994 | /** |
994 | * drm_atomic_set_fb_for_plane - set framebuffer for plane |
995 | * drm_atomic_set_fb_for_plane - set framebuffer for plane |
995 | * @plane_state: atomic state object for the plane |
996 | * @plane_state: atomic state object for the plane |
996 | * @fb: fb to use for the plane |
997 | * @fb: fb to use for the plane |
997 | * |
998 | * |
998 | * Changing the assigned framebuffer for a plane requires us to grab a reference |
999 | * Changing the assigned framebuffer for a plane requires us to grab a reference |
999 | * to the new fb and drop the reference to the old fb, if there is one. This |
1000 | * to the new fb and drop the reference to the old fb, if there is one. This |
1000 | * function takes care of all these details besides updating the pointer in the |
1001 | * function takes care of all these details besides updating the pointer in the |
1001 | * state object itself. |
1002 | * state object itself. |
1002 | */ |
1003 | */ |
1003 | void |
1004 | void |
1004 | drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state, |
1005 | drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state, |
1005 | struct drm_framebuffer *fb) |
1006 | struct drm_framebuffer *fb) |
1006 | { |
1007 | { |
1007 | if (plane_state->fb) |
1008 | if (plane_state->fb) |
1008 | drm_framebuffer_unreference(plane_state->fb); |
1009 | drm_framebuffer_unreference(plane_state->fb); |
1009 | if (fb) |
1010 | if (fb) |
1010 | drm_framebuffer_reference(fb); |
1011 | drm_framebuffer_reference(fb); |
1011 | plane_state->fb = fb; |
1012 | plane_state->fb = fb; |
1012 | 1013 | ||
1013 | if (fb) |
1014 | if (fb) |
1014 | DRM_DEBUG_ATOMIC("Set [FB:%d] for plane state %p\n", |
1015 | DRM_DEBUG_ATOMIC("Set [FB:%d] for plane state %p\n", |
1015 | fb->base.id, plane_state); |
1016 | fb->base.id, plane_state); |
1016 | else |
1017 | else |
1017 | DRM_DEBUG_ATOMIC("Set [NOFB] for plane state %p\n", |
1018 | DRM_DEBUG_ATOMIC("Set [NOFB] for plane state %p\n", |
1018 | plane_state); |
1019 | plane_state); |
1019 | } |
1020 | } |
1020 | EXPORT_SYMBOL(drm_atomic_set_fb_for_plane); |
1021 | EXPORT_SYMBOL(drm_atomic_set_fb_for_plane); |
1021 | 1022 | ||
1022 | /** |
1023 | /** |
1023 | * drm_atomic_set_crtc_for_connector - set crtc for connector |
1024 | * drm_atomic_set_crtc_for_connector - set crtc for connector |
1024 | * @conn_state: atomic state object for the connector |
1025 | * @conn_state: atomic state object for the connector |
1025 | * @crtc: crtc to use for the connector |
1026 | * @crtc: crtc to use for the connector |
1026 | * |
1027 | * |
1027 | * Changing the assigned crtc for a connector requires us to grab the lock and |
1028 | * Changing the assigned crtc for a connector requires us to grab the lock and |
1028 | * state for the new crtc, as needed. This function takes care of all these |
1029 | * state for the new crtc, as needed. This function takes care of all these |
1029 | * details besides updating the pointer in the state object itself. |
1030 | * details besides updating the pointer in the state object itself. |
1030 | * |
1031 | * |
1031 | * Returns: |
1032 | * Returns: |
1032 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK |
1033 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK |
1033 | * then the w/w mutex code has detected a deadlock and the entire atomic |
1034 | * then the w/w mutex code has detected a deadlock and the entire atomic |
1034 | * sequence must be restarted. All other errors are fatal. |
1035 | * sequence must be restarted. All other errors are fatal. |
1035 | */ |
1036 | */ |
1036 | int |
1037 | int |
1037 | drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, |
1038 | drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, |
1038 | struct drm_crtc *crtc) |
1039 | struct drm_crtc *crtc) |
1039 | { |
1040 | { |
1040 | struct drm_crtc_state *crtc_state; |
1041 | struct drm_crtc_state *crtc_state; |
1041 | 1042 | ||
1042 | if (crtc) { |
1043 | if (crtc) { |
1043 | crtc_state = drm_atomic_get_crtc_state(conn_state->state, crtc); |
1044 | crtc_state = drm_atomic_get_crtc_state(conn_state->state, crtc); |
1044 | if (IS_ERR(crtc_state)) |
1045 | if (IS_ERR(crtc_state)) |
1045 | return PTR_ERR(crtc_state); |
1046 | return PTR_ERR(crtc_state); |
1046 | } |
1047 | } |
1047 | 1048 | ||
1048 | conn_state->crtc = crtc; |
1049 | conn_state->crtc = crtc; |
1049 | 1050 | ||
1050 | if (crtc) |
1051 | if (crtc) |
1051 | DRM_DEBUG_ATOMIC("Link connector state %p to [CRTC:%d]\n", |
1052 | DRM_DEBUG_ATOMIC("Link connector state %p to [CRTC:%d]\n", |
1052 | conn_state, crtc->base.id); |
1053 | conn_state, crtc->base.id); |
1053 | else |
1054 | else |
1054 | DRM_DEBUG_ATOMIC("Link connector state %p to [NOCRTC]\n", |
1055 | DRM_DEBUG_ATOMIC("Link connector state %p to [NOCRTC]\n", |
1055 | conn_state); |
1056 | conn_state); |
1056 | 1057 | ||
1057 | return 0; |
1058 | return 0; |
1058 | } |
1059 | } |
1059 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_connector); |
1060 | EXPORT_SYMBOL(drm_atomic_set_crtc_for_connector); |
1060 | 1061 | ||
1061 | /** |
1062 | /** |
1062 | * drm_atomic_add_affected_connectors - add connectors for crtc |
1063 | * drm_atomic_add_affected_connectors - add connectors for crtc |
1063 | * @state: atomic state |
1064 | * @state: atomic state |
1064 | * @crtc: DRM crtc |
1065 | * @crtc: DRM crtc |
1065 | * |
1066 | * |
1066 | * This function walks the current configuration and adds all connectors |
1067 | * This function walks the current configuration and adds all connectors |
1067 | * currently using @crtc to the atomic configuration @state. Note that this |
1068 | * currently using @crtc to the atomic configuration @state. Note that this |
1068 | * function must acquire the connection mutex. This can potentially cause |
1069 | * function must acquire the connection mutex. This can potentially cause |
1069 | * unneeded seralization if the update is just for the planes on one crtc. Hence |
1070 | * unneeded seralization if the update is just for the planes on one crtc. Hence |
1070 | * drivers and helpers should only call this when really needed (e.g. when a |
1071 | * drivers and helpers should only call this when really needed (e.g. when a |
1071 | * full modeset needs to happen due to some change). |
1072 | * full modeset needs to happen due to some change). |
1072 | * |
1073 | * |
1073 | * Returns: |
1074 | * Returns: |
1074 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK |
1075 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK |
1075 | * then the w/w mutex code has detected a deadlock and the entire atomic |
1076 | * then the w/w mutex code has detected a deadlock and the entire atomic |
1076 | * sequence must be restarted. All other errors are fatal. |
1077 | * sequence must be restarted. All other errors are fatal. |
1077 | */ |
1078 | */ |
1078 | int |
1079 | int |
1079 | drm_atomic_add_affected_connectors(struct drm_atomic_state *state, |
1080 | drm_atomic_add_affected_connectors(struct drm_atomic_state *state, |
1080 | struct drm_crtc *crtc) |
1081 | struct drm_crtc *crtc) |
1081 | { |
1082 | { |
1082 | struct drm_mode_config *config = &state->dev->mode_config; |
1083 | struct drm_mode_config *config = &state->dev->mode_config; |
1083 | struct drm_connector *connector; |
1084 | struct drm_connector *connector; |
1084 | struct drm_connector_state *conn_state; |
1085 | struct drm_connector_state *conn_state; |
1085 | int ret; |
1086 | int ret; |
1086 | 1087 | ||
1087 | ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx); |
1088 | ret = drm_modeset_lock(&config->connection_mutex, state->acquire_ctx); |
1088 | if (ret) |
1089 | if (ret) |
1089 | return ret; |
1090 | return ret; |
1090 | 1091 | ||
1091 | DRM_DEBUG_ATOMIC("Adding all current connectors for [CRTC:%d] to %p\n", |
1092 | DRM_DEBUG_ATOMIC("Adding all current connectors for [CRTC:%d] to %p\n", |
1092 | crtc->base.id, state); |
1093 | crtc->base.id, state); |
1093 | 1094 | ||
1094 | /* |
1095 | /* |
1095 | * Changed connectors are already in @state, so only need to look at the |
1096 | * Changed connectors are already in @state, so only need to look at the |
1096 | * current configuration. |
1097 | * current configuration. |
1097 | */ |
1098 | */ |
1098 | drm_for_each_connector(connector, state->dev) { |
1099 | drm_for_each_connector(connector, state->dev) { |
1099 | if (connector->state->crtc != crtc) |
1100 | if (connector->state->crtc != crtc) |
1100 | continue; |
1101 | continue; |
1101 | 1102 | ||
1102 | conn_state = drm_atomic_get_connector_state(state, connector); |
1103 | conn_state = drm_atomic_get_connector_state(state, connector); |
1103 | if (IS_ERR(conn_state)) |
1104 | if (IS_ERR(conn_state)) |
1104 | return PTR_ERR(conn_state); |
1105 | return PTR_ERR(conn_state); |
1105 | } |
1106 | } |
1106 | 1107 | ||
1107 | return 0; |
1108 | return 0; |
1108 | } |
1109 | } |
1109 | EXPORT_SYMBOL(drm_atomic_add_affected_connectors); |
1110 | EXPORT_SYMBOL(drm_atomic_add_affected_connectors); |
1110 | 1111 | ||
1111 | /** |
1112 | /** |
1112 | * drm_atomic_add_affected_planes - add planes for crtc |
1113 | * drm_atomic_add_affected_planes - add planes for crtc |
1113 | * @state: atomic state |
1114 | * @state: atomic state |
1114 | * @crtc: DRM crtc |
1115 | * @crtc: DRM crtc |
1115 | * |
1116 | * |
1116 | * This function walks the current configuration and adds all planes |
1117 | * This function walks the current configuration and adds all planes |
1117 | * currently used by @crtc to the atomic configuration @state. This is useful |
1118 | * currently used by @crtc to the atomic configuration @state. This is useful |
1118 | * when an atomic commit also needs to check all currently enabled plane on |
1119 | * when an atomic commit also needs to check all currently enabled plane on |
1119 | * @crtc, e.g. when changing the mode. It's also useful when re-enabling a CRTC |
1120 | * @crtc, e.g. when changing the mode. It's also useful when re-enabling a CRTC |
1120 | * to avoid special code to force-enable all planes. |
1121 | * to avoid special code to force-enable all planes. |
1121 | * |
1122 | * |
1122 | * Since acquiring a plane state will always also acquire the w/w mutex of the |
1123 | * Since acquiring a plane state will always also acquire the w/w mutex of the |
1123 | * current CRTC for that plane (if there is any) adding all the plane states for |
1124 | * current CRTC for that plane (if there is any) adding all the plane states for |
1124 | * a CRTC will not reduce parallism of atomic updates. |
1125 | * a CRTC will not reduce parallism of atomic updates. |
1125 | * |
1126 | * |
1126 | * Returns: |
1127 | * Returns: |
1127 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK |
1128 | * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK |
1128 | * then the w/w mutex code has detected a deadlock and the entire atomic |
1129 | * then the w/w mutex code has detected a deadlock and the entire atomic |
1129 | * sequence must be restarted. All other errors are fatal. |
1130 | * sequence must be restarted. All other errors are fatal. |
1130 | */ |
1131 | */ |
1131 | int |
1132 | int |
1132 | drm_atomic_add_affected_planes(struct drm_atomic_state *state, |
1133 | drm_atomic_add_affected_planes(struct drm_atomic_state *state, |
1133 | struct drm_crtc *crtc) |
1134 | struct drm_crtc *crtc) |
1134 | { |
1135 | { |
1135 | struct drm_plane *plane; |
1136 | struct drm_plane *plane; |
1136 | 1137 | ||
1137 | WARN_ON(!drm_atomic_get_existing_crtc_state(state, crtc)); |
1138 | WARN_ON(!drm_atomic_get_existing_crtc_state(state, crtc)); |
1138 | 1139 | ||
1139 | drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) { |
1140 | drm_for_each_plane_mask(plane, state->dev, crtc->state->plane_mask) { |
1140 | struct drm_plane_state *plane_state = |
1141 | struct drm_plane_state *plane_state = |
1141 | drm_atomic_get_plane_state(state, plane); |
1142 | drm_atomic_get_plane_state(state, plane); |
1142 | 1143 | ||
1143 | if (IS_ERR(plane_state)) |
1144 | if (IS_ERR(plane_state)) |
1144 | return PTR_ERR(plane_state); |
1145 | return PTR_ERR(plane_state); |
1145 | } |
1146 | } |
1146 | return 0; |
1147 | return 0; |
1147 | } |
1148 | } |
1148 | EXPORT_SYMBOL(drm_atomic_add_affected_planes); |
1149 | EXPORT_SYMBOL(drm_atomic_add_affected_planes); |
1149 | 1150 | ||
1150 | /** |
1151 | /** |
1151 | * drm_atomic_connectors_for_crtc - count number of connected outputs |
1152 | * drm_atomic_connectors_for_crtc - count number of connected outputs |
1152 | * @state: atomic state |
1153 | * @state: atomic state |
1153 | * @crtc: DRM crtc |
1154 | * @crtc: DRM crtc |
1154 | * |
1155 | * |
1155 | * This function counts all connectors which will be connected to @crtc |
1156 | * This function counts all connectors which will be connected to @crtc |
1156 | * according to @state. Useful to recompute the enable state for @crtc. |
1157 | * according to @state. Useful to recompute the enable state for @crtc. |
1157 | */ |
1158 | */ |
1158 | int |
1159 | int |
1159 | drm_atomic_connectors_for_crtc(struct drm_atomic_state *state, |
1160 | drm_atomic_connectors_for_crtc(struct drm_atomic_state *state, |
1160 | struct drm_crtc *crtc) |
1161 | struct drm_crtc *crtc) |
1161 | { |
1162 | { |
1162 | struct drm_connector *connector; |
1163 | struct drm_connector *connector; |
1163 | struct drm_connector_state *conn_state; |
1164 | struct drm_connector_state *conn_state; |
1164 | 1165 | ||
1165 | int i, num_connected_connectors = 0; |
1166 | int i, num_connected_connectors = 0; |
1166 | 1167 | ||
1167 | for_each_connector_in_state(state, connector, conn_state, i) { |
1168 | for_each_connector_in_state(state, connector, conn_state, i) { |
1168 | if (conn_state->crtc == crtc) |
1169 | if (conn_state->crtc == crtc) |
1169 | num_connected_connectors++; |
1170 | num_connected_connectors++; |
1170 | } |
1171 | } |
1171 | 1172 | ||
1172 | DRM_DEBUG_ATOMIC("State %p has %i connectors for [CRTC:%d]\n", |
1173 | DRM_DEBUG_ATOMIC("State %p has %i connectors for [CRTC:%d]\n", |
1173 | state, num_connected_connectors, crtc->base.id); |
1174 | state, num_connected_connectors, crtc->base.id); |
1174 | 1175 | ||
1175 | return num_connected_connectors; |
1176 | return num_connected_connectors; |
1176 | } |
1177 | } |
1177 | EXPORT_SYMBOL(drm_atomic_connectors_for_crtc); |
1178 | EXPORT_SYMBOL(drm_atomic_connectors_for_crtc); |
1178 | 1179 | ||
1179 | /** |
1180 | /** |
1180 | * drm_atomic_legacy_backoff - locking backoff for legacy ioctls |
1181 | * drm_atomic_legacy_backoff - locking backoff for legacy ioctls |
1181 | * @state: atomic state |
1182 | * @state: atomic state |
1182 | * |
1183 | * |
1183 | * This function should be used by legacy entry points which don't understand |
1184 | * This function should be used by legacy entry points which don't understand |
1184 | * -EDEADLK semantics. For simplicity this one will grab all modeset locks after |
1185 | * -EDEADLK semantics. For simplicity this one will grab all modeset locks after |
1185 | * the slowpath completed. |
1186 | * the slowpath completed. |
1186 | */ |
1187 | */ |
1187 | void drm_atomic_legacy_backoff(struct drm_atomic_state *state) |
1188 | void drm_atomic_legacy_backoff(struct drm_atomic_state *state) |
1188 | { |
1189 | { |
1189 | int ret; |
1190 | int ret; |
1190 | 1191 | ||
1191 | retry: |
1192 | retry: |
1192 | drm_modeset_backoff(state->acquire_ctx); |
1193 | drm_modeset_backoff(state->acquire_ctx); |
1193 | 1194 | ||
1194 | ret = drm_modeset_lock(&state->dev->mode_config.connection_mutex, |
1195 | ret = drm_modeset_lock(&state->dev->mode_config.connection_mutex, |
1195 | state->acquire_ctx); |
1196 | state->acquire_ctx); |
1196 | if (ret) |
1197 | if (ret) |
1197 | goto retry; |
1198 | goto retry; |
1198 | ret = drm_modeset_lock_all_crtcs(state->dev, |
1199 | ret = drm_modeset_lock_all_crtcs(state->dev, |
1199 | state->acquire_ctx); |
1200 | state->acquire_ctx); |
1200 | if (ret) |
1201 | if (ret) |
1201 | goto retry; |
1202 | goto retry; |
1202 | } |
1203 | } |
1203 | EXPORT_SYMBOL(drm_atomic_legacy_backoff); |
1204 | EXPORT_SYMBOL(drm_atomic_legacy_backoff); |
1204 | 1205 | ||
1205 | /** |
1206 | /** |
1206 | * drm_atomic_check_only - check whether a given config would work |
1207 | * drm_atomic_check_only - check whether a given config would work |
1207 | * @state: atomic configuration to check |
1208 | * @state: atomic configuration to check |
1208 | * |
1209 | * |
1209 | * Note that this function can return -EDEADLK if the driver needed to acquire |
1210 | * Note that this function can return -EDEADLK if the driver needed to acquire |
1210 | * more locks but encountered a deadlock. The caller must then do the usual w/w |
1211 | * more locks but encountered a deadlock. The caller must then do the usual w/w |
1211 | * backoff dance and restart. All other errors are fatal. |
1212 | * backoff dance and restart. All other errors are fatal. |
1212 | * |
1213 | * |
1213 | * Returns: |
1214 | * Returns: |
1214 | * 0 on success, negative error code on failure. |
1215 | * 0 on success, negative error code on failure. |
1215 | */ |
1216 | */ |
1216 | int drm_atomic_check_only(struct drm_atomic_state *state) |
1217 | int drm_atomic_check_only(struct drm_atomic_state *state) |
1217 | { |
1218 | { |
1218 | struct drm_device *dev = state->dev; |
1219 | struct drm_device *dev = state->dev; |
1219 | struct drm_mode_config *config = &dev->mode_config; |
1220 | struct drm_mode_config *config = &dev->mode_config; |
1220 | struct drm_plane *plane; |
1221 | struct drm_plane *plane; |
1221 | struct drm_plane_state *plane_state; |
1222 | struct drm_plane_state *plane_state; |
1222 | struct drm_crtc *crtc; |
1223 | struct drm_crtc *crtc; |
1223 | struct drm_crtc_state *crtc_state; |
1224 | struct drm_crtc_state *crtc_state; |
1224 | int i, ret = 0; |
1225 | int i, ret = 0; |
1225 | 1226 | ||
1226 | DRM_DEBUG_ATOMIC("checking %p\n", state); |
1227 | DRM_DEBUG_ATOMIC("checking %p\n", state); |
1227 | 1228 | ||
1228 | for_each_plane_in_state(state, plane, plane_state, i) { |
1229 | for_each_plane_in_state(state, plane, plane_state, i) { |
1229 | ret = drm_atomic_plane_check(plane, plane_state); |
1230 | ret = drm_atomic_plane_check(plane, plane_state); |
1230 | if (ret) { |
1231 | if (ret) { |
1231 | DRM_DEBUG_ATOMIC("[PLANE:%d] atomic core check failed\n", |
1232 | DRM_DEBUG_ATOMIC("[PLANE:%d] atomic core check failed\n", |
1232 | plane->base.id); |
1233 | plane->base.id); |
1233 | return ret; |
1234 | return ret; |
1234 | } |
1235 | } |
1235 | } |
1236 | } |
1236 | 1237 | ||
1237 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
1238 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
1238 | ret = drm_atomic_crtc_check(crtc, crtc_state); |
1239 | ret = drm_atomic_crtc_check(crtc, crtc_state); |
1239 | if (ret) { |
1240 | if (ret) { |
1240 | DRM_DEBUG_ATOMIC("[CRTC:%d] atomic core check failed\n", |
1241 | DRM_DEBUG_ATOMIC("[CRTC:%d] atomic core check failed\n", |
1241 | crtc->base.id); |
1242 | crtc->base.id); |
1242 | return ret; |
1243 | return ret; |
1243 | } |
1244 | } |
1244 | } |
1245 | } |
1245 | 1246 | ||
1246 | if (config->funcs->atomic_check) |
1247 | if (config->funcs->atomic_check) |
1247 | ret = config->funcs->atomic_check(state->dev, state); |
1248 | ret = config->funcs->atomic_check(state->dev, state); |
1248 | 1249 | ||
1249 | if (!state->allow_modeset) { |
1250 | if (!state->allow_modeset) { |
1250 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
1251 | for_each_crtc_in_state(state, crtc, crtc_state, i) { |
1251 | if (drm_atomic_crtc_needs_modeset(crtc_state)) { |
1252 | if (drm_atomic_crtc_needs_modeset(crtc_state)) { |
1252 | DRM_DEBUG_ATOMIC("[CRTC:%d] requires full modeset\n", |
1253 | DRM_DEBUG_ATOMIC("[CRTC:%d] requires full modeset\n", |
1253 | crtc->base.id); |
1254 | crtc->base.id); |
1254 | return -EINVAL; |
1255 | return -EINVAL; |
1255 | } |
1256 | } |
1256 | } |
1257 | } |
1257 | } |
1258 | } |
1258 | 1259 | ||
1259 | return ret; |
1260 | return ret; |
1260 | } |
1261 | } |
1261 | EXPORT_SYMBOL(drm_atomic_check_only); |
1262 | EXPORT_SYMBOL(drm_atomic_check_only); |
1262 | 1263 | ||
1263 | /** |
1264 | /** |
1264 | * drm_atomic_commit - commit configuration atomically |
1265 | * drm_atomic_commit - commit configuration atomically |
1265 | * @state: atomic configuration to check |
1266 | * @state: atomic configuration to check |
1266 | * |
1267 | * |
1267 | * Note that this function can return -EDEADLK if the driver needed to acquire |
1268 | * Note that this function can return -EDEADLK if the driver needed to acquire |
1268 | * more locks but encountered a deadlock. The caller must then do the usual w/w |
1269 | * more locks but encountered a deadlock. The caller must then do the usual w/w |
1269 | * backoff dance and restart. All other errors are fatal. |
1270 | * backoff dance and restart. All other errors are fatal. |
1270 | * |
1271 | * |
1271 | * Also note that on successful execution ownership of @state is transferred |
1272 | * Also note that on successful execution ownership of @state is transferred |
1272 | * from the caller of this function to the function itself. The caller must not |
1273 | * from the caller of this function to the function itself. The caller must not |
1273 | * free or in any other way access @state. If the function fails then the caller |
1274 | * free or in any other way access @state. If the function fails then the caller |
1274 | * must clean up @state itself. |
1275 | * must clean up @state itself. |
1275 | * |
1276 | * |
1276 | * Returns: |
1277 | * Returns: |
1277 | * 0 on success, negative error code on failure. |
1278 | * 0 on success, negative error code on failure. |
1278 | */ |
1279 | */ |
1279 | int drm_atomic_commit(struct drm_atomic_state *state) |
1280 | int drm_atomic_commit(struct drm_atomic_state *state) |
1280 | { |
1281 | { |
1281 | struct drm_mode_config *config = &state->dev->mode_config; |
1282 | struct drm_mode_config *config = &state->dev->mode_config; |
1282 | int ret; |
1283 | int ret; |
1283 | 1284 | ||
1284 | ret = drm_atomic_check_only(state); |
1285 | ret = drm_atomic_check_only(state); |
1285 | if (ret) |
1286 | if (ret) |
1286 | return ret; |
1287 | return ret; |
1287 | 1288 | ||
1288 | DRM_DEBUG_ATOMIC("commiting %p\n", state); |
1289 | DRM_DEBUG_ATOMIC("commiting %p\n", state); |
1289 | 1290 | ||
1290 | return config->funcs->atomic_commit(state->dev, state, false); |
1291 | return config->funcs->atomic_commit(state->dev, state, false); |
1291 | } |
1292 | } |
1292 | EXPORT_SYMBOL(drm_atomic_commit); |
1293 | EXPORT_SYMBOL(drm_atomic_commit); |
1293 | 1294 | ||
1294 | /** |
1295 | /** |
1295 | * drm_atomic_async_commit - atomic&async configuration commit |
1296 | * drm_atomic_async_commit - atomic&async configuration commit |
1296 | * @state: atomic configuration to check |
1297 | * @state: atomic configuration to check |
1297 | * |
1298 | * |
1298 | * Note that this function can return -EDEADLK if the driver needed to acquire |
1299 | * Note that this function can return -EDEADLK if the driver needed to acquire |
1299 | * more locks but encountered a deadlock. The caller must then do the usual w/w |
1300 | * more locks but encountered a deadlock. The caller must then do the usual w/w |
1300 | * backoff dance and restart. All other errors are fatal. |
1301 | * backoff dance and restart. All other errors are fatal. |
1301 | * |
1302 | * |
1302 | * Also note that on successful execution ownership of @state is transferred |
1303 | * Also note that on successful execution ownership of @state is transferred |
1303 | * from the caller of this function to the function itself. The caller must not |
1304 | * from the caller of this function to the function itself. The caller must not |
1304 | * free or in any other way access @state. If the function fails then the caller |
1305 | * free or in any other way access @state. If the function fails then the caller |
1305 | * must clean up @state itself. |
1306 | * must clean up @state itself. |
1306 | * |
1307 | * |
1307 | * Returns: |
1308 | * Returns: |
1308 | * 0 on success, negative error code on failure. |
1309 | * 0 on success, negative error code on failure. |
1309 | */ |
1310 | */ |
1310 | int drm_atomic_async_commit(struct drm_atomic_state *state) |
1311 | int drm_atomic_async_commit(struct drm_atomic_state *state) |
1311 | { |
1312 | { |
1312 | struct drm_mode_config *config = &state->dev->mode_config; |
1313 | struct drm_mode_config *config = &state->dev->mode_config; |
1313 | int ret; |
1314 | int ret; |
1314 | 1315 | ||
1315 | ret = drm_atomic_check_only(state); |
1316 | ret = drm_atomic_check_only(state); |
1316 | if (ret) |
1317 | if (ret) |
1317 | return ret; |
1318 | return ret; |
1318 | 1319 | ||
1319 | DRM_DEBUG_ATOMIC("commiting %p asynchronously\n", state); |
1320 | DRM_DEBUG_ATOMIC("commiting %p asynchronously\n", state); |
1320 | 1321 | ||
1321 | return config->funcs->atomic_commit(state->dev, state, true); |
1322 | return config->funcs->atomic_commit(state->dev, state, true); |
1322 | } |
1323 | } |
1323 | EXPORT_SYMBOL(drm_atomic_async_commit); |
1324 | EXPORT_SYMBOL(drm_atomic_async_commit); |
1324 | 1325 | ||
1325 | /* |
1326 | /* |
1326 | * The big monstor ioctl |
1327 | * The big monstor ioctl |
1327 | */ |
1328 | */ |
1328 | 1329 | ||
1329 | static struct drm_pending_vblank_event *create_vblank_event( |
1330 | static struct drm_pending_vblank_event *create_vblank_event( |
1330 | struct drm_device *dev, struct drm_file *file_priv, uint64_t user_data) |
1331 | struct drm_device *dev, struct drm_file *file_priv, uint64_t user_data) |
1331 | { |
1332 | { |
1332 | struct drm_pending_vblank_event *e = NULL; |
1333 | struct drm_pending_vblank_event *e = NULL; |
1333 | unsigned long flags; |
1334 | unsigned long flags; |
1334 | 1335 | ||
1335 | spin_lock_irqsave(&dev->event_lock, flags); |
1336 | spin_lock_irqsave(&dev->event_lock, flags); |
1336 | if (file_priv->event_space < sizeof e->event) { |
1337 | if (file_priv->event_space < sizeof e->event) { |
1337 | spin_unlock_irqrestore(&dev->event_lock, flags); |
1338 | spin_unlock_irqrestore(&dev->event_lock, flags); |
1338 | goto out; |
1339 | goto out; |
1339 | } |
1340 | } |
1340 | file_priv->event_space -= sizeof e->event; |
1341 | file_priv->event_space -= sizeof e->event; |
1341 | spin_unlock_irqrestore(&dev->event_lock, flags); |
1342 | spin_unlock_irqrestore(&dev->event_lock, flags); |
1342 | 1343 | ||
1343 | e = kzalloc(sizeof *e, GFP_KERNEL); |
1344 | e = kzalloc(sizeof *e, GFP_KERNEL); |
1344 | if (e == NULL) { |
1345 | if (e == NULL) { |
1345 | spin_lock_irqsave(&dev->event_lock, flags); |
1346 | spin_lock_irqsave(&dev->event_lock, flags); |
1346 | file_priv->event_space += sizeof e->event; |
1347 | file_priv->event_space += sizeof e->event; |
1347 | spin_unlock_irqrestore(&dev->event_lock, flags); |
1348 | spin_unlock_irqrestore(&dev->event_lock, flags); |
1348 | goto out; |
1349 | goto out; |
1349 | } |
1350 | } |
1350 | 1351 | ||
1351 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
1352 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
1352 | e->event.base.length = sizeof e->event; |
1353 | e->event.base.length = sizeof e->event; |
1353 | e->event.user_data = user_data; |
1354 | e->event.user_data = user_data; |
1354 | e->base.event = &e->event.base; |
1355 | e->base.event = &e->event.base; |
1355 | e->base.file_priv = file_priv; |
1356 | e->base.file_priv = file_priv; |
1356 | e->base.destroy = (void (*) (struct drm_pending_event *)) kfree; |
1357 | e->base.destroy = (void (*) (struct drm_pending_event *)) kfree; |
1357 | 1358 | ||
1358 | out: |
1359 | out: |
1359 | return e; |
1360 | return e; |
1360 | } |
1361 | } |
1361 | 1362 | ||
1362 | static void destroy_vblank_event(struct drm_device *dev, |
1363 | static void destroy_vblank_event(struct drm_device *dev, |
1363 | struct drm_file *file_priv, struct drm_pending_vblank_event *e) |
1364 | struct drm_file *file_priv, struct drm_pending_vblank_event *e) |
1364 | { |
1365 | { |
1365 | unsigned long flags; |
1366 | unsigned long flags; |
1366 | 1367 | ||
1367 | spin_lock_irqsave(&dev->event_lock, flags); |
1368 | spin_lock_irqsave(&dev->event_lock, flags); |
1368 | file_priv->event_space += sizeof e->event; |
1369 | file_priv->event_space += sizeof e->event; |
1369 | spin_unlock_irqrestore(&dev->event_lock, flags); |
1370 | spin_unlock_irqrestore(&dev->event_lock, flags); |
1370 | kfree(e); |
1371 | kfree(e); |
1371 | } |
1372 | } |
1372 | 1373 | ||
1373 | static int atomic_set_prop(struct drm_atomic_state *state, |
1374 | static int atomic_set_prop(struct drm_atomic_state *state, |
1374 | struct drm_mode_object *obj, struct drm_property *prop, |
1375 | struct drm_mode_object *obj, struct drm_property *prop, |
1375 | uint64_t prop_value) |
1376 | uint64_t prop_value) |
1376 | { |
1377 | { |
1377 | struct drm_mode_object *ref; |
1378 | struct drm_mode_object *ref; |
1378 | int ret; |
1379 | int ret; |
1379 | 1380 | ||
1380 | if (!drm_property_change_valid_get(prop, prop_value, &ref)) |
1381 | if (!drm_property_change_valid_get(prop, prop_value, &ref)) |
1381 | return -EINVAL; |
1382 | return -EINVAL; |
1382 | 1383 | ||
1383 | switch (obj->type) { |
1384 | switch (obj->type) { |
1384 | case DRM_MODE_OBJECT_CONNECTOR: { |
1385 | case DRM_MODE_OBJECT_CONNECTOR: { |
1385 | struct drm_connector *connector = obj_to_connector(obj); |
1386 | struct drm_connector *connector = obj_to_connector(obj); |
1386 | struct drm_connector_state *connector_state; |
1387 | struct drm_connector_state *connector_state; |
1387 | 1388 | ||
1388 | connector_state = drm_atomic_get_connector_state(state, connector); |
1389 | connector_state = drm_atomic_get_connector_state(state, connector); |
1389 | if (IS_ERR(connector_state)) { |
1390 | if (IS_ERR(connector_state)) { |
1390 | ret = PTR_ERR(connector_state); |
1391 | ret = PTR_ERR(connector_state); |
1391 | break; |
1392 | break; |
1392 | } |
1393 | } |
1393 | 1394 | ||
1394 | ret = drm_atomic_connector_set_property(connector, |
1395 | ret = drm_atomic_connector_set_property(connector, |
1395 | connector_state, prop, prop_value); |
1396 | connector_state, prop, prop_value); |
1396 | break; |
1397 | break; |
1397 | } |
1398 | } |
1398 | case DRM_MODE_OBJECT_CRTC: { |
1399 | case DRM_MODE_OBJECT_CRTC: { |
1399 | struct drm_crtc *crtc = obj_to_crtc(obj); |
1400 | struct drm_crtc *crtc = obj_to_crtc(obj); |
1400 | struct drm_crtc_state *crtc_state; |
1401 | struct drm_crtc_state *crtc_state; |
1401 | 1402 | ||
1402 | crtc_state = drm_atomic_get_crtc_state(state, crtc); |
1403 | crtc_state = drm_atomic_get_crtc_state(state, crtc); |
1403 | if (IS_ERR(crtc_state)) { |
1404 | if (IS_ERR(crtc_state)) { |
1404 | ret = PTR_ERR(crtc_state); |
1405 | ret = PTR_ERR(crtc_state); |
1405 | break; |
1406 | break; |
1406 | } |
1407 | } |
1407 | 1408 | ||
1408 | ret = drm_atomic_crtc_set_property(crtc, |
1409 | ret = drm_atomic_crtc_set_property(crtc, |
1409 | crtc_state, prop, prop_value); |
1410 | crtc_state, prop, prop_value); |
1410 | break; |
1411 | break; |
1411 | } |
1412 | } |
1412 | case DRM_MODE_OBJECT_PLANE: { |
1413 | case DRM_MODE_OBJECT_PLANE: { |
1413 | struct drm_plane *plane = obj_to_plane(obj); |
1414 | struct drm_plane *plane = obj_to_plane(obj); |
1414 | struct drm_plane_state *plane_state; |
1415 | struct drm_plane_state *plane_state; |
1415 | 1416 | ||
1416 | plane_state = drm_atomic_get_plane_state(state, plane); |
1417 | plane_state = drm_atomic_get_plane_state(state, plane); |
1417 | if (IS_ERR(plane_state)) { |
1418 | if (IS_ERR(plane_state)) { |
1418 | ret = PTR_ERR(plane_state); |
1419 | ret = PTR_ERR(plane_state); |
1419 | break; |
1420 | break; |
1420 | } |
1421 | } |
1421 | 1422 | ||
1422 | ret = drm_atomic_plane_set_property(plane, |
1423 | ret = drm_atomic_plane_set_property(plane, |
1423 | plane_state, prop, prop_value); |
1424 | plane_state, prop, prop_value); |
1424 | break; |
1425 | break; |
1425 | } |
1426 | } |
1426 | default: |
1427 | default: |
1427 | ret = -EINVAL; |
1428 | ret = -EINVAL; |
1428 | break; |
1429 | break; |
1429 | } |
1430 | } |
1430 | 1431 | ||
1431 | drm_property_change_valid_put(prop, ref); |
1432 | drm_property_change_valid_put(prop, ref); |
1432 | return ret; |
1433 | return ret; |
1433 | } |
1434 | } |
1434 | 1435 | ||
1435 | /** |
1436 | /** |
1436 | * drm_atomic_update_old_fb -- Unset old_fb pointers and set plane->fb pointers. |
1437 | * drm_atomic_update_old_fb -- Unset old_fb pointers and set plane->fb pointers. |
1437 | * |
1438 | * |
1438 | * @dev: drm device to check. |
1439 | * @dev: drm device to check. |
1439 | * @plane_mask: plane mask for planes that were updated. |
1440 | * @plane_mask: plane mask for planes that were updated. |
1440 | * @ret: return value, can be -EDEADLK for a retry. |
1441 | * @ret: return value, can be -EDEADLK for a retry. |
1441 | * |
1442 | * |
1442 | * Before doing an update plane->old_fb is set to plane->fb, |
1443 | * Before doing an update plane->old_fb is set to plane->fb, |
1443 | * but before dropping the locks old_fb needs to be set to NULL |
1444 | * but before dropping the locks old_fb needs to be set to NULL |
1444 | * and plane->fb updated. This is a common operation for each |
1445 | * and plane->fb updated. This is a common operation for each |
1445 | * atomic update, so this call is split off as a helper. |
1446 | * atomic update, so this call is split off as a helper. |
1446 | */ |
1447 | */ |
1447 | void drm_atomic_clean_old_fb(struct drm_device *dev, |
1448 | void drm_atomic_clean_old_fb(struct drm_device *dev, |
1448 | unsigned plane_mask, |
1449 | unsigned plane_mask, |
1449 | int ret) |
1450 | int ret) |
1450 | { |
1451 | { |
1451 | struct drm_plane *plane; |
1452 | struct drm_plane *plane; |
1452 | 1453 | ||
1453 | /* if succeeded, fixup legacy plane crtc/fb ptrs before dropping |
1454 | /* if succeeded, fixup legacy plane crtc/fb ptrs before dropping |
1454 | * locks (ie. while it is still safe to deref plane->state). We |
1455 | * locks (ie. while it is still safe to deref plane->state). We |
1455 | * need to do this here because the driver entry points cannot |
1456 | * need to do this here because the driver entry points cannot |
1456 | * distinguish between legacy and atomic ioctls. |
1457 | * distinguish between legacy and atomic ioctls. |
1457 | */ |
1458 | */ |
1458 | drm_for_each_plane_mask(plane, dev, plane_mask) { |
1459 | drm_for_each_plane_mask(plane, dev, plane_mask) { |
1459 | if (ret == 0) { |
1460 | if (ret == 0) { |
1460 | struct drm_framebuffer *new_fb = plane->state->fb; |
1461 | struct drm_framebuffer *new_fb = plane->state->fb; |
1461 | if (new_fb) |
1462 | if (new_fb) |
1462 | drm_framebuffer_reference(new_fb); |
1463 | drm_framebuffer_reference(new_fb); |
1463 | plane->fb = new_fb; |
1464 | plane->fb = new_fb; |
1464 | plane->crtc = plane->state->crtc; |
1465 | plane->crtc = plane->state->crtc; |
1465 | 1466 | ||
1466 | if (plane->old_fb) |
1467 | if (plane->old_fb) |
1467 | drm_framebuffer_unreference(plane->old_fb); |
1468 | drm_framebuffer_unreference(plane->old_fb); |
1468 | } |
1469 | } |
1469 | plane->old_fb = NULL; |
1470 | plane->old_fb = NULL; |
1470 | } |
1471 | } |
1471 | } |
1472 | } |
1472 | EXPORT_SYMBOL(drm_atomic_clean_old_fb);>><>><>><>><>>>>> |
1473 | EXPORT_SYMBOL(drm_atomic_clean_old_fb);>><>><>><>><>>>>> |