1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
2 /**************************************************************************
3 *
4 * Copyright 2009-2023 VMware, Inc., Palo Alto, CA., USA
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #ifndef VMWGFX_KMS_H_
29 #define VMWGFX_KMS_H_
30
31 #include <drm/drm_encoder.h>
32 #include <drm/drm_framebuffer.h>
33 #include <drm/drm_probe_helper.h>
34
35 #include "vmwgfx_drv.h"
36
37 /**
38 * struct vmw_du_update_plane - Closure structure for vmw_du_helper_plane_update
39 * @plane: Plane which is being updated.
40 * @old_state: Old state of plane.
41 * @dev_priv: Device private.
42 * @du: Display unit on which to update the plane.
43 * @vfb: Framebuffer which is blitted to display unit.
44 * @out_fence: Out fence for resource finish.
45 * @mutex: The mutex used to protect resource reservation.
46 * @cpu_blit: True if need cpu blit.
47 * @intr: Whether to perform waits interruptible if possible.
48 *
49 * This structure loosely represent the set of operations needed to perform a
50 * plane update on a display unit. Implementer will define that functionality
51 * according to the function callbacks for this structure. In brief it involves
52 * surface/buffer object validation, populate FIFO commands and command
53 * submission to the device.
54 */
55 struct vmw_du_update_plane {
56 /**
57 * @calc_fifo_size: Calculate fifo size.
58 *
59 * Determine fifo size for the commands needed for update. The number of
60 * damage clips on display unit @num_hits will be passed to allocate
61 * sufficient fifo space.
62 *
63 * Return: Fifo size needed
64 */
65 uint32_t (*calc_fifo_size)(struct vmw_du_update_plane *update,
66 uint32_t num_hits);
67
68 /**
69 * @post_prepare: Populate fifo for resource preparation.
70 *
71 * Some surface resource or buffer object need some extra cmd submission
72 * like update GB image for proxy surface and define a GMRFB for screen
73 * object. That should be done here as this callback will be
74 * called after FIFO allocation with the address of command buufer.
75 *
76 * This callback is optional.
77 *
78 * Return: Size of commands populated to command buffer.
79 */
80 uint32_t (*post_prepare)(struct vmw_du_update_plane *update, void *cmd);
81
82 /**
83 * @pre_clip: Populate fifo before clip.
84 *
85 * This is where pre clip related command should be populated like
86 * surface copy/DMA, etc.
87 *
88 * This callback is optional.
89 *
90 * Return: Size of commands populated to command buffer.
91 */
92 uint32_t (*pre_clip)(struct vmw_du_update_plane *update, void *cmd,
93 uint32_t num_hits);
94
95 /**
96 * @clip: Populate fifo for clip.
97 *
98 * This is where to populate clips for surface copy/dma or blit commands
99 * if needed. This will be called times have damage in display unit,
100 * which is one if doing full update. @clip is the damage in destination
101 * coordinates which is crtc/DU and @src_x, @src_y is damage clip src in
102 * framebuffer coordinate.
103 *
104 * This callback is optional.
105 *
106 * Return: Size of commands populated to command buffer.
107 */
108 uint32_t (*clip)(struct vmw_du_update_plane *update, void *cmd,
109 struct drm_rect *clip, uint32_t src_x, uint32_t src_y);
110
111 /**
112 * @post_clip: Populate fifo after clip.
113 *
114 * This is where to populate display unit update commands or blit
115 * commands.
116 *
117 * Return: Size of commands populated to command buffer.
118 */
119 uint32_t (*post_clip)(struct vmw_du_update_plane *update, void *cmd,
120 struct drm_rect *bb);
121
122 struct drm_plane *plane;
123 struct drm_plane_state *old_state;
124 struct vmw_private *dev_priv;
125 struct vmw_display_unit *du;
126 struct vmw_framebuffer *vfb;
127 struct vmw_fence_obj **out_fence;
128 struct mutex *mutex;
129 bool intr;
130 };
131
132 /**
133 * struct vmw_du_update_plane_surface - closure structure for surface
134 * @base: base closure structure.
135 * @cmd_start: FIFO command start address (used by SOU only).
136 */
137 struct vmw_du_update_plane_surface {
138 struct vmw_du_update_plane base;
139 /* This member is to handle special case SOU surface update */
140 void *cmd_start;
141 };
142
143 /**
144 * struct vmw_du_update_plane_buffer - Closure structure for buffer object
145 * @base: Base closure structure.
146 * @fb_left: x1 for fb damage bounding box.
147 * @fb_top: y1 for fb damage bounding box.
148 */
149 struct vmw_du_update_plane_buffer {
150 struct vmw_du_update_plane base;
151 int fb_left, fb_top;
152 };
153
154 /**
155 * struct vmw_kms_dirty - closure structure for the vmw_kms_helper_dirty
156 * function.
157 *
158 * @fifo_commit: Callback that is called once for each display unit after
159 * all clip rects. This function must commit the fifo space reserved by the
160 * helper. Set up by the caller.
161 * @clip: Callback that is called for each cliprect on each display unit.
162 * Set up by the caller.
163 * @fifo_reserve_size: Fifo size that the helper should try to allocat for
164 * each display unit. Set up by the caller.
165 * @dev_priv: Pointer to the device private. Set up by the helper.
166 * @unit: The current display unit. Set up by the helper before a call to @clip.
167 * @cmd: The allocated fifo space. Set up by the helper before the first @clip
168 * call.
169 * @crtc: The crtc for which to build dirty commands.
170 * @num_hits: Number of clip rect commands for this display unit.
171 * Cleared by the helper before the first @clip call. Updated by the @clip
172 * callback.
173 * @fb_x: Clip rect left side in framebuffer coordinates.
174 * @fb_y: Clip rect right side in framebuffer coordinates.
175 * @unit_x1: Clip rect left side in crtc coordinates.
176 * @unit_y1: Clip rect top side in crtc coordinates.
177 * @unit_x2: Clip rect right side in crtc coordinates.
178 * @unit_y2: Clip rect bottom side in crtc coordinates.
179 *
180 * The clip rect coordinates are updated by the helper for each @clip call.
181 * Note that this may be derived from if more info needs to be passed between
182 * helper caller and helper callbacks.
183 */
184 struct vmw_kms_dirty {
185 void (*fifo_commit)(struct vmw_kms_dirty *);
186 void (*clip)(struct vmw_kms_dirty *);
187 size_t fifo_reserve_size;
188 struct vmw_private *dev_priv;
189 struct vmw_display_unit *unit;
190 void *cmd;
191 struct drm_crtc *crtc;
192 u32 num_hits;
193 s32 fb_x;
194 s32 fb_y;
195 s32 unit_x1;
196 s32 unit_y1;
197 s32 unit_x2;
198 s32 unit_y2;
199 };
200
201 #define VMWGFX_NUM_DISPLAY_UNITS 8
202
203
204 #define vmw_framebuffer_to_vfb(x) \
205 container_of(x, struct vmw_framebuffer, base)
206 #define vmw_framebuffer_to_vfbs(x) \
207 container_of(x, struct vmw_framebuffer_surface, base.base)
208 #define vmw_framebuffer_to_vfbd(x) \
209 container_of(x, struct vmw_framebuffer_bo, base.base)
210
211 /**
212 * Base class for framebuffers
213 *
214 * @pin is called the when ever a crtc uses this framebuffer
215 * @unpin is called
216 */
217 struct vmw_framebuffer {
218 struct drm_framebuffer base;
219 bool bo;
220 uint32_t user_handle;
221 };
222
223 /*
224 * Clip rectangle
225 */
226 struct vmw_clip_rect {
227 int x1, x2, y1, y2;
228 };
229
230 struct vmw_framebuffer_surface {
231 struct vmw_framebuffer base;
232 struct vmw_surface *surface;
233 struct vmw_bo *buffer;
234 struct list_head head;
235 bool is_bo_proxy; /* true if this is proxy surface for DMA buf */
236 };
237
238
239 struct vmw_framebuffer_bo {
240 struct vmw_framebuffer base;
241 struct vmw_bo *buffer;
242 };
243
244
245 static const uint32_t __maybe_unused vmw_primary_plane_formats[] = {
246 DRM_FORMAT_XRGB1555,
247 DRM_FORMAT_RGB565,
248 DRM_FORMAT_XRGB8888,
249 DRM_FORMAT_ARGB8888,
250 };
251
252 static const uint32_t __maybe_unused vmw_cursor_plane_formats[] = {
253 DRM_FORMAT_ARGB8888,
254 };
255
256
257 #define vmw_crtc_state_to_vcs(x) container_of(x, struct vmw_crtc_state, base)
258 #define vmw_plane_state_to_vps(x) container_of(x, struct vmw_plane_state, base)
259 #define vmw_connector_state_to_vcs(x) \
260 container_of(x, struct vmw_connector_state, base)
261 #define vmw_plane_to_vcp(x) container_of(x, struct vmw_cursor_plane, base)
262
263 /**
264 * Derived class for crtc state object
265 *
266 * @base DRM crtc object
267 */
268 struct vmw_crtc_state {
269 struct drm_crtc_state base;
270 };
271
272 struct vmw_cursor_plane_state {
273 struct vmw_bo *bo;
274 s32 hotspot_x;
275 s32 hotspot_y;
276 };
277
278 /**
279 * Derived class for plane state object
280 *
281 * @base DRM plane object
282 * @surf Display surface for STDU
283 * @bo display bo for SOU
284 * @content_fb_type Used by STDU.
285 * @bo_size Size of the bo, used by Screen Object Display Unit
286 * @pinned pin count for STDU display surface
287 */
288 struct vmw_plane_state {
289 struct drm_plane_state base;
290 struct vmw_surface *surf;
291 struct vmw_bo *bo;
292
293 int content_fb_type;
294 unsigned long bo_size;
295
296 int pinned;
297
298 /* For CPU Blit */
299 unsigned int cpp;
300
301 bool surf_mapped;
302 struct vmw_cursor_plane_state cursor;
303 };
304
305
306 /**
307 * Derived class for connector state object
308 *
309 * @base DRM connector object
310 * @is_implicit connector property
311 *
312 */
313 struct vmw_connector_state {
314 struct drm_connector_state base;
315
316 /**
317 * @gui_x:
318 *
319 * vmwgfx connector property representing the x position of this display
320 * unit (connector is synonymous to display unit) in overall topology.
321 * This is what the device expect as xRoot while creating screen.
322 */
323 int gui_x;
324
325 /**
326 * @gui_y:
327 *
328 * vmwgfx connector property representing the y position of this display
329 * unit (connector is synonymous to display unit) in overall topology.
330 * This is what the device expect as yRoot while creating screen.
331 */
332 int gui_y;
333 };
334
335 /**
336 * Derived class for cursor plane object
337 *
338 * @base DRM plane object
339 * @cursor.cursor_mobs Cursor mobs available for re-use
340 */
341 struct vmw_cursor_plane {
342 struct drm_plane base;
343
344 struct vmw_bo *cursor_mobs[3];
345 };
346
347 /**
348 * Base class display unit.
349 *
350 * Since the SVGA hw doesn't have a concept of a crtc, encoder or connector
351 * so the display unit is all of them at the same time. This is true for both
352 * legacy multimon and screen objects.
353 */
354 struct vmw_display_unit {
355 struct drm_crtc crtc;
356 struct drm_encoder encoder;
357 struct drm_connector connector;
358 struct drm_plane primary;
359 struct vmw_cursor_plane cursor;
360
361 struct vmw_surface *cursor_surface;
362 struct vmw_bo *cursor_bo;
363 size_t cursor_age;
364
365 int cursor_x;
366 int cursor_y;
367
368 int hotspot_x;
369 int hotspot_y;
370 s32 core_hotspot_x;
371 s32 core_hotspot_y;
372
373 unsigned unit;
374
375 /*
376 * Prefered mode tracking.
377 */
378 unsigned pref_width;
379 unsigned pref_height;
380 bool pref_active;
381 struct drm_display_mode *pref_mode;
382
383 /*
384 * Gui positioning
385 */
386 int gui_x;
387 int gui_y;
388 bool is_implicit;
389 int set_gui_x;
390 int set_gui_y;
391 };
392
393 struct vmw_validation_ctx {
394 struct vmw_resource *res;
395 struct vmw_bo *buf;
396 };
397
398 #define vmw_crtc_to_du(x) \
399 container_of(x, struct vmw_display_unit, crtc)
400 #define vmw_connector_to_du(x) \
401 container_of(x, struct vmw_display_unit, connector)
402
403
404 /*
405 * Shared display unit functions - vmwgfx_kms.c
406 */
407 void vmw_du_cleanup(struct vmw_display_unit *du);
408 void vmw_du_crtc_save(struct drm_crtc *crtc);
409 void vmw_du_crtc_restore(struct drm_crtc *crtc);
410 int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
411 u16 *r, u16 *g, u16 *b,
412 uint32_t size,
413 struct drm_modeset_acquire_ctx *ctx);
414 int vmw_du_connector_set_property(struct drm_connector *connector,
415 struct drm_property *property,
416 uint64_t val);
417 int vmw_du_connector_atomic_set_property(struct drm_connector *connector,
418 struct drm_connector_state *state,
419 struct drm_property *property,
420 uint64_t val);
421 int
422 vmw_du_connector_atomic_get_property(struct drm_connector *connector,
423 const struct drm_connector_state *state,
424 struct drm_property *property,
425 uint64_t *val);
426 int vmw_du_connector_dpms(struct drm_connector *connector, int mode);
427 void vmw_du_connector_save(struct drm_connector *connector);
428 void vmw_du_connector_restore(struct drm_connector *connector);
429 enum drm_connector_status
430 vmw_du_connector_detect(struct drm_connector *connector, bool force);
431 int vmw_du_connector_fill_modes(struct drm_connector *connector,
432 uint32_t max_width, uint32_t max_height);
433 int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
434 struct vmw_framebuffer *framebuffer,
435 const struct drm_clip_rect *clips,
436 const struct drm_vmw_rect *vclips,
437 s32 dest_x, s32 dest_y,
438 int num_clips,
439 int increment,
440 struct vmw_kms_dirty *dirty);
441
442 void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
443 struct drm_file *file_priv,
444 struct vmw_validation_context *ctx,
445 struct vmw_fence_obj **out_fence,
446 struct drm_vmw_fence_rep __user *
447 user_fence_rep);
448 int vmw_kms_readback(struct vmw_private *dev_priv,
449 struct drm_file *file_priv,
450 struct vmw_framebuffer *vfb,
451 struct drm_vmw_fence_rep __user *user_fence_rep,
452 struct drm_vmw_rect *vclips,
453 uint32_t num_clips);
454 struct vmw_framebuffer *
455 vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
456 struct vmw_bo *bo,
457 struct vmw_surface *surface,
458 bool only_2d,
459 const struct drm_mode_fb_cmd2 *mode_cmd);
460 void vmw_guess_mode_timing(struct drm_display_mode *mode);
461 void vmw_kms_update_implicit_fb(struct vmw_private *dev_priv);
462 void vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv);
463
464 /* Universal Plane Helpers */
465 void vmw_du_primary_plane_destroy(struct drm_plane *plane);
466 void vmw_du_cursor_plane_destroy(struct drm_plane *plane);
467
468 /* Atomic Helpers */
469 int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
470 struct drm_atomic_state *state);
471 int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane,
472 struct drm_atomic_state *state);
473 void vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
474 struct drm_atomic_state *state);
475 int vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
476 struct drm_plane_state *new_state);
477 void vmw_du_cursor_plane_cleanup_fb(struct drm_plane *plane,
478 struct drm_plane_state *old_state);
479 void vmw_du_plane_cleanup_fb(struct drm_plane *plane,
480 struct drm_plane_state *old_state);
481 void vmw_du_plane_reset(struct drm_plane *plane);
482 struct drm_plane_state *vmw_du_plane_duplicate_state(struct drm_plane *plane);
483 void vmw_du_plane_destroy_state(struct drm_plane *plane,
484 struct drm_plane_state *state);
485 void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps,
486 bool unreference);
487
488 int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
489 struct drm_atomic_state *state);
490 void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
491 struct drm_atomic_state *state);
492 void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
493 struct drm_atomic_state *state);
494 void vmw_du_crtc_reset(struct drm_crtc *crtc);
495 struct drm_crtc_state *vmw_du_crtc_duplicate_state(struct drm_crtc *crtc);
496 void vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
497 struct drm_crtc_state *state);
498 void vmw_du_connector_reset(struct drm_connector *connector);
499 struct drm_connector_state *
500 vmw_du_connector_duplicate_state(struct drm_connector *connector);
501
502 void vmw_du_connector_destroy_state(struct drm_connector *connector,
503 struct drm_connector_state *state);
504
505 /*
506 * Legacy display unit functions - vmwgfx_ldu.c
507 */
508 int vmw_kms_ldu_init_display(struct vmw_private *dev_priv);
509 int vmw_kms_ldu_close_display(struct vmw_private *dev_priv);
510 int vmw_kms_update_proxy(struct vmw_resource *res,
511 const struct drm_clip_rect *clips,
512 unsigned num_clips,
513 int increment);
514
515 /*
516 * Screen Objects display functions - vmwgfx_scrn.c
517 */
518 int vmw_kms_sou_init_display(struct vmw_private *dev_priv);
519 int vmw_kms_sou_do_surface_dirty(struct vmw_private *dev_priv,
520 struct vmw_framebuffer *framebuffer,
521 struct drm_clip_rect *clips,
522 struct drm_vmw_rect *vclips,
523 struct vmw_resource *srf,
524 s32 dest_x,
525 s32 dest_y,
526 unsigned num_clips, int inc,
527 struct vmw_fence_obj **out_fence,
528 struct drm_crtc *crtc);
529 int vmw_kms_sou_do_bo_dirty(struct vmw_private *dev_priv,
530 struct vmw_framebuffer *framebuffer,
531 struct drm_clip_rect *clips,
532 struct drm_vmw_rect *vclips,
533 unsigned int num_clips, int increment,
534 bool interruptible,
535 struct vmw_fence_obj **out_fence,
536 struct drm_crtc *crtc);
537 int vmw_kms_sou_readback(struct vmw_private *dev_priv,
538 struct drm_file *file_priv,
539 struct vmw_framebuffer *vfb,
540 struct drm_vmw_fence_rep __user *user_fence_rep,
541 struct drm_vmw_rect *vclips,
542 uint32_t num_clips,
543 struct drm_crtc *crtc);
544
545 /*
546 * Screen Target Display Unit functions - vmwgfx_stdu.c
547 */
548 int vmw_kms_stdu_init_display(struct vmw_private *dev_priv);
549 int vmw_kms_stdu_surface_dirty(struct vmw_private *dev_priv,
550 struct vmw_framebuffer *framebuffer,
551 struct drm_clip_rect *clips,
552 struct drm_vmw_rect *vclips,
553 struct vmw_resource *srf,
554 s32 dest_x,
555 s32 dest_y,
556 unsigned num_clips, int inc,
557 struct vmw_fence_obj **out_fence,
558 struct drm_crtc *crtc);
559 int vmw_kms_stdu_readback(struct vmw_private *dev_priv,
560 struct drm_file *file_priv,
561 struct vmw_framebuffer *vfb,
562 struct drm_vmw_fence_rep __user *user_fence_rep,
563 struct drm_clip_rect *clips,
564 struct drm_vmw_rect *vclips,
565 uint32_t num_clips,
566 int increment,
567 struct drm_crtc *crtc);
568
569 int vmw_du_helper_plane_update(struct vmw_du_update_plane *update);
570
571 /**
572 * vmw_du_translate_to_crtc - Translate a rect from framebuffer to crtc
573 * @state: Plane state.
574 * @r: Rectangle to translate.
575 */
vmw_du_translate_to_crtc(struct drm_plane_state * state,struct drm_rect * r)576 static inline void vmw_du_translate_to_crtc(struct drm_plane_state *state,
577 struct drm_rect *r)
578 {
579 int translate_crtc_x = -((state->src_x >> 16) - state->crtc_x);
580 int translate_crtc_y = -((state->src_y >> 16) - state->crtc_y);
581
582 drm_rect_translate(r, translate_crtc_x, translate_crtc_y);
583 }
584
585 #endif
586