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1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/**************************************************************************
3 *
4 * Copyright (c) 2009-2024 Broadcom. All Rights Reserved. The term
5 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
22 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
23 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
24 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
25 * USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28#include "vmwgfx_kms.h"
29
30#include "vmwgfx_bo.h"
31#include "vmwgfx_vkms.h"
32#include "vmw_surface_cache.h"
33
34#include <drm/drm_atomic.h>
35#include <drm/drm_atomic_helper.h>
36#include <drm/drm_damage_helper.h>
37#include <drm/drm_fourcc.h>
38#include <drm/drm_rect.h>
39#include <drm/drm_sysfs.h>
40#include <drm/drm_edid.h>
41
42void vmw_du_init(struct vmw_display_unit *du)
43{
44 vmw_vkms_crtc_init(&du->crtc);
45}
46
47void vmw_du_cleanup(struct vmw_display_unit *du)
48{
49 struct vmw_private *dev_priv = vmw_priv(du->primary.dev);
50
51 vmw_vkms_crtc_cleanup(&du->crtc);
52 drm_plane_cleanup(&du->primary);
53 if (vmw_cmd_supported(dev_priv))
54 drm_plane_cleanup(&du->cursor.base);
55
56 drm_connector_unregister(&du->connector);
57 drm_crtc_cleanup(&du->crtc);
58 drm_encoder_cleanup(&du->encoder);
59 drm_connector_cleanup(&du->connector);
60}
61
62/*
63 * Display Unit Cursor functions
64 */
65
66static int vmw_du_cursor_plane_unmap_cm(struct vmw_plane_state *vps);
67static void vmw_cursor_update_mob(struct vmw_private *dev_priv,
68 struct vmw_plane_state *vps,
69 u32 *image, u32 width, u32 height,
70 u32 hotspotX, u32 hotspotY);
71
72struct vmw_svga_fifo_cmd_define_cursor {
73 u32 cmd;
74 SVGAFifoCmdDefineAlphaCursor cursor;
75};
76
77/**
78 * vmw_send_define_cursor_cmd - queue a define cursor command
79 * @dev_priv: the private driver struct
80 * @image: buffer which holds the cursor image
81 * @width: width of the mouse cursor image
82 * @height: height of the mouse cursor image
83 * @hotspotX: the horizontal position of mouse hotspot
84 * @hotspotY: the vertical position of mouse hotspot
85 */
86static void vmw_send_define_cursor_cmd(struct vmw_private *dev_priv,
87 u32 *image, u32 width, u32 height,
88 u32 hotspotX, u32 hotspotY)
89{
90 struct vmw_svga_fifo_cmd_define_cursor *cmd;
91 const u32 image_size = width * height * sizeof(*image);
92 const u32 cmd_size = sizeof(*cmd) + image_size;
93
94 /* Try to reserve fifocmd space and swallow any failures;
95 such reservations cannot be left unconsumed for long
96 under the risk of clogging other fifocmd users, so
97 we treat reservations separtely from the way we treat
98 other fallible KMS-atomic resources at prepare_fb */
99 cmd = VMW_CMD_RESERVE(dev_priv, cmd_size);
100
101 if (unlikely(!cmd))
102 return;
103
104 memset(cmd, 0, sizeof(*cmd));
105
106 memcpy(&cmd[1], image, image_size);
107
108 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR;
109 cmd->cursor.id = 0;
110 cmd->cursor.width = width;
111 cmd->cursor.height = height;
112 cmd->cursor.hotspotX = hotspotX;
113 cmd->cursor.hotspotY = hotspotY;
114
115 vmw_cmd_commit_flush(dev_priv, cmd_size);
116}
117
118/**
119 * vmw_cursor_update_image - update the cursor image on the provided plane
120 * @dev_priv: the private driver struct
121 * @vps: the plane state of the cursor plane
122 * @image: buffer which holds the cursor image
123 * @width: width of the mouse cursor image
124 * @height: height of the mouse cursor image
125 * @hotspotX: the horizontal position of mouse hotspot
126 * @hotspotY: the vertical position of mouse hotspot
127 */
128static void vmw_cursor_update_image(struct vmw_private *dev_priv,
129 struct vmw_plane_state *vps,
130 u32 *image, u32 width, u32 height,
131 u32 hotspotX, u32 hotspotY)
132{
133 if (vps->cursor.bo)
134 vmw_cursor_update_mob(dev_priv, vps, image,
135 vps->base.crtc_w, vps->base.crtc_h,
136 hotspotX, hotspotY);
137
138 else
139 vmw_send_define_cursor_cmd(dev_priv, image, width, height,
140 hotspotX, hotspotY);
141}
142
143
144/**
145 * vmw_cursor_update_mob - Update cursor vis CursorMob mechanism
146 *
147 * Called from inside vmw_du_cursor_plane_atomic_update to actually
148 * make the cursor-image live.
149 *
150 * @dev_priv: device to work with
151 * @vps: the plane state of the cursor plane
152 * @image: cursor source data to fill the MOB with
153 * @width: source data width
154 * @height: source data height
155 * @hotspotX: cursor hotspot x
156 * @hotspotY: cursor hotspot Y
157 */
158static void vmw_cursor_update_mob(struct vmw_private *dev_priv,
159 struct vmw_plane_state *vps,
160 u32 *image, u32 width, u32 height,
161 u32 hotspotX, u32 hotspotY)
162{
163 SVGAGBCursorHeader *header;
164 SVGAGBAlphaCursorHeader *alpha_header;
165 const u32 image_size = width * height * sizeof(*image);
166
167 header = vmw_bo_map_and_cache(vps->cursor.bo);
168 alpha_header = &header->header.alphaHeader;
169
170 memset(header, 0, sizeof(*header));
171
172 header->type = SVGA_ALPHA_CURSOR;
173 header->sizeInBytes = image_size;
174
175 alpha_header->hotspotX = hotspotX;
176 alpha_header->hotspotY = hotspotY;
177 alpha_header->width = width;
178 alpha_header->height = height;
179
180 memcpy(header + 1, image, image_size);
181 vmw_write(dev_priv, SVGA_REG_CURSOR_MOBID,
182 vps->cursor.bo->tbo.resource->start);
183}
184
185
186static u32 vmw_du_cursor_mob_size(u32 w, u32 h)
187{
188 return w * h * sizeof(u32) + sizeof(SVGAGBCursorHeader);
189}
190
191/**
192 * vmw_du_cursor_plane_acquire_image -- Acquire the image data
193 * @vps: cursor plane state
194 */
195static u32 *vmw_du_cursor_plane_acquire_image(struct vmw_plane_state *vps)
196{
197 struct vmw_surface *surf;
198
199 if (vmw_user_object_is_null(&vps->uo))
200 return NULL;
201
202 surf = vmw_user_object_surface(&vps->uo);
203 if (surf && !vmw_user_object_is_mapped(&vps->uo))
204 return surf->snooper.image;
205
206 return vmw_user_object_map(&vps->uo);
207}
208
209static bool vmw_du_cursor_plane_has_changed(struct vmw_plane_state *old_vps,
210 struct vmw_plane_state *new_vps)
211{
212 void *old_image;
213 void *new_image;
214 u32 size;
215 bool changed;
216
217 if (old_vps->base.crtc_w != new_vps->base.crtc_w ||
218 old_vps->base.crtc_h != new_vps->base.crtc_h)
219 return true;
220
221 if (old_vps->cursor.hotspot_x != new_vps->cursor.hotspot_x ||
222 old_vps->cursor.hotspot_y != new_vps->cursor.hotspot_y)
223 return true;
224
225 size = new_vps->base.crtc_w * new_vps->base.crtc_h * sizeof(u32);
226
227 old_image = vmw_du_cursor_plane_acquire_image(old_vps);
228 new_image = vmw_du_cursor_plane_acquire_image(new_vps);
229
230 changed = false;
231 if (old_image && new_image && old_image != new_image)
232 changed = memcmp(old_image, new_image, size) != 0;
233
234 return changed;
235}
236
237static void vmw_du_destroy_cursor_mob(struct vmw_bo **vbo)
238{
239 if (!(*vbo))
240 return;
241
242 ttm_bo_unpin(&(*vbo)->tbo);
243 vmw_bo_unreference(vbo);
244}
245
246static void vmw_du_put_cursor_mob(struct vmw_cursor_plane *vcp,
247 struct vmw_plane_state *vps)
248{
249 u32 i;
250
251 if (!vps->cursor.bo)
252 return;
253
254 vmw_du_cursor_plane_unmap_cm(vps);
255
256 /* Look for a free slot to return this mob to the cache. */
257 for (i = 0; i < ARRAY_SIZE(vcp->cursor_mobs); i++) {
258 if (!vcp->cursor_mobs[i]) {
259 vcp->cursor_mobs[i] = vps->cursor.bo;
260 vps->cursor.bo = NULL;
261 return;
262 }
263 }
264
265 /* Cache is full: See if this mob is bigger than an existing mob. */
266 for (i = 0; i < ARRAY_SIZE(vcp->cursor_mobs); i++) {
267 if (vcp->cursor_mobs[i]->tbo.base.size <
268 vps->cursor.bo->tbo.base.size) {
269 vmw_du_destroy_cursor_mob(&vcp->cursor_mobs[i]);
270 vcp->cursor_mobs[i] = vps->cursor.bo;
271 vps->cursor.bo = NULL;
272 return;
273 }
274 }
275
276 /* Destroy it if it's not worth caching. */
277 vmw_du_destroy_cursor_mob(&vps->cursor.bo);
278}
279
280static int vmw_du_get_cursor_mob(struct vmw_cursor_plane *vcp,
281 struct vmw_plane_state *vps)
282{
283 struct vmw_private *dev_priv = vmw_priv(vcp->base.dev);
284 u32 size = vmw_du_cursor_mob_size(vps->base.crtc_w, vps->base.crtc_h);
285 u32 i;
286 u32 cursor_max_dim, mob_max_size;
287 struct vmw_fence_obj *fence = NULL;
288 int ret;
289
290 if (!dev_priv->has_mob ||
291 (dev_priv->capabilities2 & SVGA_CAP2_CURSOR_MOB) == 0)
292 return -EINVAL;
293
294 mob_max_size = vmw_read(dev_priv, SVGA_REG_MOB_MAX_SIZE);
295 cursor_max_dim = vmw_read(dev_priv, SVGA_REG_CURSOR_MAX_DIMENSION);
296
297 if (size > mob_max_size || vps->base.crtc_w > cursor_max_dim ||
298 vps->base.crtc_h > cursor_max_dim)
299 return -EINVAL;
300
301 if (vps->cursor.bo) {
302 if (vps->cursor.bo->tbo.base.size >= size)
303 return 0;
304 vmw_du_put_cursor_mob(vcp, vps);
305 }
306
307 /* Look for an unused mob in the cache. */
308 for (i = 0; i < ARRAY_SIZE(vcp->cursor_mobs); i++) {
309 if (vcp->cursor_mobs[i] &&
310 vcp->cursor_mobs[i]->tbo.base.size >= size) {
311 vps->cursor.bo = vcp->cursor_mobs[i];
312 vcp->cursor_mobs[i] = NULL;
313 return 0;
314 }
315 }
316 /* Create a new mob if we can't find an existing one. */
317 ret = vmw_bo_create_and_populate(dev_priv, size,
318 VMW_BO_DOMAIN_MOB,
319 &vps->cursor.bo);
320
321 if (ret != 0)
322 return ret;
323
324 /* Fence the mob creation so we are guarateed to have the mob */
325 ret = ttm_bo_reserve(&vps->cursor.bo->tbo, false, false, NULL);
326 if (ret != 0)
327 goto teardown;
328
329 ret = vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL);
330 if (ret != 0) {
331 ttm_bo_unreserve(&vps->cursor.bo->tbo);
332 goto teardown;
333 }
334
335 dma_fence_wait(&fence->base, false);
336 dma_fence_put(&fence->base);
337
338 ttm_bo_unreserve(&vps->cursor.bo->tbo);
339 return 0;
340
341teardown:
342 vmw_du_destroy_cursor_mob(&vps->cursor.bo);
343 return ret;
344}
345
346
347static void vmw_cursor_update_position(struct vmw_private *dev_priv,
348 bool show, int x, int y)
349{
350 const uint32_t svga_cursor_on = show ? SVGA_CURSOR_ON_SHOW
351 : SVGA_CURSOR_ON_HIDE;
352 uint32_t count;
353
354 spin_lock(&dev_priv->cursor_lock);
355 if (dev_priv->capabilities2 & SVGA_CAP2_EXTRA_REGS) {
356 vmw_write(dev_priv, SVGA_REG_CURSOR4_X, x);
357 vmw_write(dev_priv, SVGA_REG_CURSOR4_Y, y);
358 vmw_write(dev_priv, SVGA_REG_CURSOR4_SCREEN_ID, SVGA3D_INVALID_ID);
359 vmw_write(dev_priv, SVGA_REG_CURSOR4_ON, svga_cursor_on);
360 vmw_write(dev_priv, SVGA_REG_CURSOR4_SUBMIT, 1);
361 } else if (vmw_is_cursor_bypass3_enabled(dev_priv)) {
362 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_ON, svga_cursor_on);
363 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_X, x);
364 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_Y, y);
365 count = vmw_fifo_mem_read(dev_priv, SVGA_FIFO_CURSOR_COUNT);
366 vmw_fifo_mem_write(dev_priv, SVGA_FIFO_CURSOR_COUNT, ++count);
367 } else {
368 vmw_write(dev_priv, SVGA_REG_CURSOR_X, x);
369 vmw_write(dev_priv, SVGA_REG_CURSOR_Y, y);
370 vmw_write(dev_priv, SVGA_REG_CURSOR_ON, svga_cursor_on);
371 }
372 spin_unlock(&dev_priv->cursor_lock);
373}
374
375void vmw_kms_cursor_snoop(struct vmw_surface *srf,
376 struct ttm_object_file *tfile,
377 struct ttm_buffer_object *bo,
378 SVGA3dCmdHeader *header)
379{
380 struct ttm_bo_kmap_obj map;
381 unsigned long kmap_offset;
382 unsigned long kmap_num;
383 SVGA3dCopyBox *box;
384 unsigned box_count;
385 void *virtual;
386 bool is_iomem;
387 struct vmw_dma_cmd {
388 SVGA3dCmdHeader header;
389 SVGA3dCmdSurfaceDMA dma;
390 } *cmd;
391 int i, ret;
392 const struct SVGA3dSurfaceDesc *desc =
393 vmw_surface_get_desc(VMW_CURSOR_SNOOP_FORMAT);
394 const u32 image_pitch = VMW_CURSOR_SNOOP_WIDTH * desc->pitchBytesPerBlock;
395
396 cmd = container_of(header, struct vmw_dma_cmd, header);
397
398 /* No snooper installed, nothing to copy */
399 if (!srf->snooper.image)
400 return;
401
402 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
403 DRM_ERROR("face and mipmap for cursors should never != 0\n");
404 return;
405 }
406
407 if (cmd->header.size < 64) {
408 DRM_ERROR("at least one full copy box must be given\n");
409 return;
410 }
411
412 box = (SVGA3dCopyBox *)&cmd[1];
413 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
414 sizeof(SVGA3dCopyBox);
415
416 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
417 box->x != 0 || box->y != 0 || box->z != 0 ||
418 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
419 box->d != 1 || box_count != 1 ||
420 box->w > VMW_CURSOR_SNOOP_WIDTH || box->h > VMW_CURSOR_SNOOP_HEIGHT) {
421 /* TODO handle none page aligned offsets */
422 /* TODO handle more dst & src != 0 */
423 /* TODO handle more then one copy */
424 DRM_ERROR("Can't snoop dma request for cursor!\n");
425 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
426 box->srcx, box->srcy, box->srcz,
427 box->x, box->y, box->z,
428 box->w, box->h, box->d, box_count,
429 cmd->dma.guest.ptr.offset);
430 return;
431 }
432
433 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
434 kmap_num = (VMW_CURSOR_SNOOP_HEIGHT*image_pitch) >> PAGE_SHIFT;
435
436 ret = ttm_bo_reserve(bo, true, false, NULL);
437 if (unlikely(ret != 0)) {
438 DRM_ERROR("reserve failed\n");
439 return;
440 }
441
442 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
443 if (unlikely(ret != 0))
444 goto err_unreserve;
445
446 virtual = ttm_kmap_obj_virtual(&map, &is_iomem);
447
448 if (box->w == VMW_CURSOR_SNOOP_WIDTH && cmd->dma.guest.pitch == image_pitch) {
449 memcpy(srf->snooper.image, virtual,
450 VMW_CURSOR_SNOOP_HEIGHT*image_pitch);
451 } else {
452 /* Image is unsigned pointer. */
453 for (i = 0; i < box->h; i++)
454 memcpy(srf->snooper.image + i * image_pitch,
455 virtual + i * cmd->dma.guest.pitch,
456 box->w * desc->pitchBytesPerBlock);
457 }
458
459 srf->snooper.age++;
460
461 ttm_bo_kunmap(&map);
462err_unreserve:
463 ttm_bo_unreserve(bo);
464}
465
466/**
467 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots
468 *
469 * @dev_priv: Pointer to the device private struct.
470 *
471 * Clears all legacy hotspots.
472 */
473void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv)
474{
475 struct drm_device *dev = &dev_priv->drm;
476 struct vmw_display_unit *du;
477 struct drm_crtc *crtc;
478
479 drm_modeset_lock_all(dev);
480 drm_for_each_crtc(crtc, dev) {
481 du = vmw_crtc_to_du(crtc);
482
483 du->hotspot_x = 0;
484 du->hotspot_y = 0;
485 }
486 drm_modeset_unlock_all(dev);
487}
488
489void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
490{
491 struct drm_device *dev = &dev_priv->drm;
492 struct vmw_display_unit *du;
493 struct drm_crtc *crtc;
494
495 mutex_lock(&dev->mode_config.mutex);
496
497 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
498 du = vmw_crtc_to_du(crtc);
499 if (!du->cursor_surface ||
500 du->cursor_age == du->cursor_surface->snooper.age ||
501 !du->cursor_surface->snooper.image)
502 continue;
503
504 du->cursor_age = du->cursor_surface->snooper.age;
505 vmw_send_define_cursor_cmd(dev_priv,
506 du->cursor_surface->snooper.image,
507 VMW_CURSOR_SNOOP_WIDTH,
508 VMW_CURSOR_SNOOP_HEIGHT,
509 du->hotspot_x + du->core_hotspot_x,
510 du->hotspot_y + du->core_hotspot_y);
511 }
512
513 mutex_unlock(&dev->mode_config.mutex);
514}
515
516
517void vmw_du_cursor_plane_destroy(struct drm_plane *plane)
518{
519 struct vmw_cursor_plane *vcp = vmw_plane_to_vcp(plane);
520 u32 i;
521
522 vmw_cursor_update_position(vmw_priv(plane->dev), false, 0, 0);
523
524 for (i = 0; i < ARRAY_SIZE(vcp->cursor_mobs); i++)
525 vmw_du_destroy_cursor_mob(&vcp->cursor_mobs[i]);
526
527 drm_plane_cleanup(plane);
528}
529
530
531void vmw_du_primary_plane_destroy(struct drm_plane *plane)
532{
533 drm_plane_cleanup(plane);
534
535 /* Planes are static in our case so we don't free it */
536}
537
538
539/**
540 * vmw_du_plane_unpin_surf - unpins resource associated with a framebuffer surface
541 *
542 * @vps: plane state associated with the display surface
543 */
544void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps)
545{
546 struct vmw_surface *surf = vmw_user_object_surface(&vps->uo);
547
548 if (surf) {
549 if (vps->pinned) {
550 vmw_resource_unpin(&surf->res);
551 vps->pinned--;
552 }
553 }
554}
555
556
557/**
558 * vmw_du_plane_cleanup_fb - Unpins the plane surface
559 *
560 * @plane: display plane
561 * @old_state: Contains the FB to clean up
562 *
563 * Unpins the framebuffer surface
564 *
565 * Returns 0 on success
566 */
567void
568vmw_du_plane_cleanup_fb(struct drm_plane *plane,
569 struct drm_plane_state *old_state)
570{
571 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
572
573 vmw_du_plane_unpin_surf(vps);
574}
575
576
577/**
578 * vmw_du_cursor_plane_map_cm - Maps the cursor mobs.
579 *
580 * @vps: plane_state
581 *
582 * Returns 0 on success
583 */
584
585static int
586vmw_du_cursor_plane_map_cm(struct vmw_plane_state *vps)
587{
588 int ret;
589 u32 size = vmw_du_cursor_mob_size(vps->base.crtc_w, vps->base.crtc_h);
590 struct ttm_buffer_object *bo;
591
592 if (!vps->cursor.bo)
593 return -EINVAL;
594
595 bo = &vps->cursor.bo->tbo;
596
597 if (bo->base.size < size)
598 return -EINVAL;
599
600 if (vps->cursor.bo->map.virtual)
601 return 0;
602
603 ret = ttm_bo_reserve(bo, false, false, NULL);
604 if (unlikely(ret != 0))
605 return -ENOMEM;
606
607 vmw_bo_map_and_cache(vps->cursor.bo);
608
609 ttm_bo_unreserve(bo);
610
611 if (unlikely(ret != 0))
612 return -ENOMEM;
613
614 return 0;
615}
616
617
618/**
619 * vmw_du_cursor_plane_unmap_cm - Unmaps the cursor mobs.
620 *
621 * @vps: state of the cursor plane
622 *
623 * Returns 0 on success
624 */
625
626static int
627vmw_du_cursor_plane_unmap_cm(struct vmw_plane_state *vps)
628{
629 int ret = 0;
630 struct vmw_bo *vbo = vps->cursor.bo;
631
632 if (!vbo || !vbo->map.virtual)
633 return 0;
634
635 ret = ttm_bo_reserve(&vbo->tbo, true, false, NULL);
636 if (likely(ret == 0)) {
637 vmw_bo_unmap(vbo);
638 ttm_bo_unreserve(&vbo->tbo);
639 }
640
641 return ret;
642}
643
644
645/**
646 * vmw_du_cursor_plane_cleanup_fb - Unpins the plane surface
647 *
648 * @plane: cursor plane
649 * @old_state: contains the state to clean up
650 *
651 * Unmaps all cursor bo mappings and unpins the cursor surface
652 *
653 * Returns 0 on success
654 */
655void
656vmw_du_cursor_plane_cleanup_fb(struct drm_plane *plane,
657 struct drm_plane_state *old_state)
658{
659 struct vmw_cursor_plane *vcp = vmw_plane_to_vcp(plane);
660 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
661
662 if (!vmw_user_object_is_null(&vps->uo))
663 vmw_user_object_unmap(&vps->uo);
664
665 vmw_du_cursor_plane_unmap_cm(vps);
666 vmw_du_put_cursor_mob(vcp, vps);
667
668 vmw_du_plane_unpin_surf(vps);
669 vmw_user_object_unref(&vps->uo);
670}
671
672
673/**
674 * vmw_du_cursor_plane_prepare_fb - Readies the cursor by referencing it
675 *
676 * @plane: display plane
677 * @new_state: info on the new plane state, including the FB
678 *
679 * Returns 0 on success
680 */
681int
682vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
683 struct drm_plane_state *new_state)
684{
685 struct drm_framebuffer *fb = new_state->fb;
686 struct vmw_cursor_plane *vcp = vmw_plane_to_vcp(plane);
687 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
688 struct vmw_bo *bo = NULL;
689 int ret = 0;
690
691 if (!vmw_user_object_is_null(&vps->uo)) {
692 vmw_user_object_unmap(&vps->uo);
693 vmw_user_object_unref(&vps->uo);
694 }
695
696 if (fb) {
697 if (vmw_framebuffer_to_vfb(fb)->bo) {
698 vps->uo.buffer = vmw_framebuffer_to_vfbd(fb)->buffer;
699 vps->uo.surface = NULL;
700 } else {
701 memcpy(&vps->uo, &vmw_framebuffer_to_vfbs(fb)->uo, sizeof(vps->uo));
702 }
703 vmw_user_object_ref(&vps->uo);
704 }
705
706 bo = vmw_user_object_buffer(&vps->uo);
707 if (bo) {
708 struct ttm_operation_ctx ctx = {false, false};
709
710 ret = ttm_bo_reserve(&bo->tbo, true, false, NULL);
711 if (ret != 0)
712 return -ENOMEM;
713
714 ret = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
715 if (ret != 0)
716 return -ENOMEM;
717
718 vmw_bo_pin_reserved(bo, true);
719 if (vmw_framebuffer_to_vfb(fb)->bo) {
720 const u32 size = new_state->crtc_w * new_state->crtc_h * sizeof(u32);
721
722 (void)vmw_bo_map_and_cache_size(bo, size);
723 } else {
724 vmw_bo_map_and_cache(bo);
725 }
726 ttm_bo_unreserve(&bo->tbo);
727 }
728
729 if (!vmw_user_object_is_null(&vps->uo)) {
730 vmw_du_get_cursor_mob(vcp, vps);
731 vmw_du_cursor_plane_map_cm(vps);
732 }
733
734 return 0;
735}
736
737
738void
739vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
740 struct drm_atomic_state *state)
741{
742 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
743 plane);
744 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
745 plane);
746 struct drm_crtc *crtc = new_state->crtc ?: old_state->crtc;
747 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
748 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
749 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
750 struct vmw_plane_state *old_vps = vmw_plane_state_to_vps(old_state);
751 struct vmw_bo *old_bo = NULL;
752 struct vmw_bo *new_bo = NULL;
753 struct ww_acquire_ctx ctx;
754 s32 hotspot_x, hotspot_y;
755 int ret;
756
757 hotspot_x = du->hotspot_x + new_state->hotspot_x;
758 hotspot_y = du->hotspot_y + new_state->hotspot_y;
759
760 du->cursor_surface = vmw_user_object_surface(&vps->uo);
761
762 if (vmw_user_object_is_null(&vps->uo)) {
763 vmw_cursor_update_position(dev_priv, false, 0, 0);
764 return;
765 }
766
767 vps->cursor.hotspot_x = hotspot_x;
768 vps->cursor.hotspot_y = hotspot_y;
769
770 if (du->cursor_surface)
771 du->cursor_age = du->cursor_surface->snooper.age;
772
773 ww_acquire_init(&ctx, &reservation_ww_class);
774
775 if (!vmw_user_object_is_null(&old_vps->uo)) {
776 old_bo = vmw_user_object_buffer(&old_vps->uo);
777 ret = ttm_bo_reserve(&old_bo->tbo, false, false, &ctx);
778 if (ret != 0)
779 return;
780 }
781
782 if (!vmw_user_object_is_null(&vps->uo)) {
783 new_bo = vmw_user_object_buffer(&vps->uo);
784 if (old_bo != new_bo) {
785 ret = ttm_bo_reserve(&new_bo->tbo, false, false, &ctx);
786 if (ret != 0) {
787 if (old_bo) {
788 ttm_bo_unreserve(&old_bo->tbo);
789 ww_acquire_fini(&ctx);
790 }
791 return;
792 }
793 } else {
794 new_bo = NULL;
795 }
796 }
797 if (!vmw_du_cursor_plane_has_changed(old_vps, vps)) {
798 /*
799 * If it hasn't changed, avoid making the device do extra
800 * work by keeping the old cursor active.
801 */
802 struct vmw_cursor_plane_state tmp = old_vps->cursor;
803 old_vps->cursor = vps->cursor;
804 vps->cursor = tmp;
805 } else {
806 void *image = vmw_du_cursor_plane_acquire_image(vps);
807 if (image)
808 vmw_cursor_update_image(dev_priv, vps, image,
809 new_state->crtc_w,
810 new_state->crtc_h,
811 hotspot_x, hotspot_y);
812 }
813
814 if (new_bo)
815 ttm_bo_unreserve(&new_bo->tbo);
816 if (old_bo)
817 ttm_bo_unreserve(&old_bo->tbo);
818
819 ww_acquire_fini(&ctx);
820
821 du->cursor_x = new_state->crtc_x + du->set_gui_x;
822 du->cursor_y = new_state->crtc_y + du->set_gui_y;
823
824 vmw_cursor_update_position(dev_priv, true,
825 du->cursor_x + hotspot_x,
826 du->cursor_y + hotspot_y);
827
828 du->core_hotspot_x = hotspot_x - du->hotspot_x;
829 du->core_hotspot_y = hotspot_y - du->hotspot_y;
830}
831
832
833/**
834 * vmw_du_primary_plane_atomic_check - check if the new state is okay
835 *
836 * @plane: display plane
837 * @state: info on the new plane state, including the FB
838 *
839 * Check if the new state is settable given the current state. Other
840 * than what the atomic helper checks, we care about crtc fitting
841 * the FB and maintaining one active framebuffer.
842 *
843 * Returns 0 on success
844 */
845int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
846 struct drm_atomic_state *state)
847{
848 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
849 plane);
850 struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
851 plane);
852 struct drm_crtc_state *crtc_state = NULL;
853 struct drm_framebuffer *new_fb = new_state->fb;
854 struct drm_framebuffer *old_fb = old_state->fb;
855 int ret;
856
857 /*
858 * Ignore damage clips if the framebuffer attached to the plane's state
859 * has changed since the last plane update (page-flip). In this case, a
860 * full plane update should happen because uploads are done per-buffer.
861 */
862 if (old_fb != new_fb)
863 new_state->ignore_damage_clips = true;
864
865 if (new_state->crtc)
866 crtc_state = drm_atomic_get_new_crtc_state(state,
867 new_state->crtc);
868
869 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
870 DRM_PLANE_NO_SCALING,
871 DRM_PLANE_NO_SCALING,
872 false, true);
873 return ret;
874}
875
876
877/**
878 * vmw_du_cursor_plane_atomic_check - check if the new state is okay
879 *
880 * @plane: cursor plane
881 * @state: info on the new plane state
882 *
883 * This is a chance to fail if the new cursor state does not fit
884 * our requirements.
885 *
886 * Returns 0 on success
887 */
888int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane,
889 struct drm_atomic_state *state)
890{
891 struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
892 plane);
893 int ret = 0;
894 struct drm_crtc_state *crtc_state = NULL;
895 struct vmw_surface *surface = NULL;
896 struct drm_framebuffer *fb = new_state->fb;
897
898 if (new_state->crtc)
899 crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
900 new_state->crtc);
901
902 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
903 DRM_PLANE_NO_SCALING,
904 DRM_PLANE_NO_SCALING,
905 true, true);
906 if (ret)
907 return ret;
908
909 /* Turning off */
910 if (!fb)
911 return 0;
912
913 /* A lot of the code assumes this */
914 if (new_state->crtc_w != 64 || new_state->crtc_h != 64) {
915 DRM_ERROR("Invalid cursor dimensions (%d, %d)\n",
916 new_state->crtc_w, new_state->crtc_h);
917 return -EINVAL;
918 }
919
920 if (!vmw_framebuffer_to_vfb(fb)->bo) {
921 surface = vmw_user_object_surface(&vmw_framebuffer_to_vfbs(fb)->uo);
922
923 WARN_ON(!surface);
924
925 if (!surface ||
926 (!surface->snooper.image && !surface->res.guest_memory_bo)) {
927 DRM_ERROR("surface not suitable for cursor\n");
928 return -EINVAL;
929 }
930 }
931
932 return 0;
933}
934
935
936int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
937 struct drm_atomic_state *state)
938{
939 struct vmw_private *vmw = vmw_priv(crtc->dev);
940 struct drm_crtc_state *new_state = drm_atomic_get_new_crtc_state(state,
941 crtc);
942 struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
943 int connector_mask = drm_connector_mask(&du->connector);
944 bool has_primary = new_state->plane_mask &
945 drm_plane_mask(crtc->primary);
946
947 /*
948 * This is fine in general, but broken userspace might expect
949 * some actual rendering so give a clue as why it's blank.
950 */
951 if (new_state->enable && !has_primary)
952 drm_dbg_driver(&vmw->drm,
953 "CRTC without a primary plane will be blank.\n");
954
955
956 if (new_state->connector_mask != connector_mask &&
957 new_state->connector_mask != 0) {
958 DRM_ERROR("Invalid connectors configuration\n");
959 return -EINVAL;
960 }
961
962 /*
963 * Our virtual device does not have a dot clock, so use the logical
964 * clock value as the dot clock.
965 */
966 if (new_state->mode.crtc_clock == 0)
967 new_state->adjusted_mode.crtc_clock = new_state->mode.clock;
968
969 return 0;
970}
971
972
973void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
974 struct drm_atomic_state *state)
975{
976 vmw_vkms_crtc_atomic_begin(crtc, state);
977}
978
979/**
980 * vmw_du_crtc_duplicate_state - duplicate crtc state
981 * @crtc: DRM crtc
982 *
983 * Allocates and returns a copy of the crtc state (both common and
984 * vmw-specific) for the specified crtc.
985 *
986 * Returns: The newly allocated crtc state, or NULL on failure.
987 */
988struct drm_crtc_state *
989vmw_du_crtc_duplicate_state(struct drm_crtc *crtc)
990{
991 struct drm_crtc_state *state;
992 struct vmw_crtc_state *vcs;
993
994 if (WARN_ON(!crtc->state))
995 return NULL;
996
997 vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL);
998
999 if (!vcs)
1000 return NULL;
1001
1002 state = &vcs->base;
1003
1004 __drm_atomic_helper_crtc_duplicate_state(crtc, state);
1005
1006 return state;
1007}
1008
1009
1010/**
1011 * vmw_du_crtc_reset - creates a blank vmw crtc state
1012 * @crtc: DRM crtc
1013 *
1014 * Resets the atomic state for @crtc by freeing the state pointer (which
1015 * might be NULL, e.g. at driver load time) and allocating a new empty state
1016 * object.
1017 */
1018void vmw_du_crtc_reset(struct drm_crtc *crtc)
1019{
1020 struct vmw_crtc_state *vcs;
1021
1022
1023 if (crtc->state) {
1024 __drm_atomic_helper_crtc_destroy_state(crtc->state);
1025
1026 kfree(vmw_crtc_state_to_vcs(crtc->state));
1027 }
1028
1029 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
1030
1031 if (!vcs) {
1032 DRM_ERROR("Cannot allocate vmw_crtc_state\n");
1033 return;
1034 }
1035
1036 __drm_atomic_helper_crtc_reset(crtc, &vcs->base);
1037}
1038
1039
1040/**
1041 * vmw_du_crtc_destroy_state - destroy crtc state
1042 * @crtc: DRM crtc
1043 * @state: state object to destroy
1044 *
1045 * Destroys the crtc state (both common and vmw-specific) for the
1046 * specified plane.
1047 */
1048void
1049vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
1050 struct drm_crtc_state *state)
1051{
1052 drm_atomic_helper_crtc_destroy_state(crtc, state);
1053}
1054
1055
1056/**
1057 * vmw_du_plane_duplicate_state - duplicate plane state
1058 * @plane: drm plane
1059 *
1060 * Allocates and returns a copy of the plane state (both common and
1061 * vmw-specific) for the specified plane.
1062 *
1063 * Returns: The newly allocated plane state, or NULL on failure.
1064 */
1065struct drm_plane_state *
1066vmw_du_plane_duplicate_state(struct drm_plane *plane)
1067{
1068 struct drm_plane_state *state;
1069 struct vmw_plane_state *vps;
1070
1071 vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL);
1072
1073 if (!vps)
1074 return NULL;
1075
1076 vps->pinned = 0;
1077 vps->cpp = 0;
1078
1079 memset(&vps->cursor, 0, sizeof(vps->cursor));
1080
1081 /* Each ref counted resource needs to be acquired again */
1082 vmw_user_object_ref(&vps->uo);
1083 state = &vps->base;
1084
1085 __drm_atomic_helper_plane_duplicate_state(plane, state);
1086
1087 return state;
1088}
1089
1090
1091/**
1092 * vmw_du_plane_reset - creates a blank vmw plane state
1093 * @plane: drm plane
1094 *
1095 * Resets the atomic state for @plane by freeing the state pointer (which might
1096 * be NULL, e.g. at driver load time) and allocating a new empty state object.
1097 */
1098void vmw_du_plane_reset(struct drm_plane *plane)
1099{
1100 struct vmw_plane_state *vps;
1101
1102 if (plane->state)
1103 vmw_du_plane_destroy_state(plane, plane->state);
1104
1105 vps = kzalloc(sizeof(*vps), GFP_KERNEL);
1106
1107 if (!vps) {
1108 DRM_ERROR("Cannot allocate vmw_plane_state\n");
1109 return;
1110 }
1111
1112 __drm_atomic_helper_plane_reset(plane, &vps->base);
1113}
1114
1115
1116/**
1117 * vmw_du_plane_destroy_state - destroy plane state
1118 * @plane: DRM plane
1119 * @state: state object to destroy
1120 *
1121 * Destroys the plane state (both common and vmw-specific) for the
1122 * specified plane.
1123 */
1124void
1125vmw_du_plane_destroy_state(struct drm_plane *plane,
1126 struct drm_plane_state *state)
1127{
1128 struct vmw_plane_state *vps = vmw_plane_state_to_vps(state);
1129
1130 /* Should have been freed by cleanup_fb */
1131 vmw_user_object_unref(&vps->uo);
1132
1133 drm_atomic_helper_plane_destroy_state(plane, state);
1134}
1135
1136
1137/**
1138 * vmw_du_connector_duplicate_state - duplicate connector state
1139 * @connector: DRM connector
1140 *
1141 * Allocates and returns a copy of the connector state (both common and
1142 * vmw-specific) for the specified connector.
1143 *
1144 * Returns: The newly allocated connector state, or NULL on failure.
1145 */
1146struct drm_connector_state *
1147vmw_du_connector_duplicate_state(struct drm_connector *connector)
1148{
1149 struct drm_connector_state *state;
1150 struct vmw_connector_state *vcs;
1151
1152 if (WARN_ON(!connector->state))
1153 return NULL;
1154
1155 vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL);
1156
1157 if (!vcs)
1158 return NULL;
1159
1160 state = &vcs->base;
1161
1162 __drm_atomic_helper_connector_duplicate_state(connector, state);
1163
1164 return state;
1165}
1166
1167
1168/**
1169 * vmw_du_connector_reset - creates a blank vmw connector state
1170 * @connector: DRM connector
1171 *
1172 * Resets the atomic state for @connector by freeing the state pointer (which
1173 * might be NULL, e.g. at driver load time) and allocating a new empty state
1174 * object.
1175 */
1176void vmw_du_connector_reset(struct drm_connector *connector)
1177{
1178 struct vmw_connector_state *vcs;
1179
1180
1181 if (connector->state) {
1182 __drm_atomic_helper_connector_destroy_state(connector->state);
1183
1184 kfree(vmw_connector_state_to_vcs(connector->state));
1185 }
1186
1187 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
1188
1189 if (!vcs) {
1190 DRM_ERROR("Cannot allocate vmw_connector_state\n");
1191 return;
1192 }
1193
1194 __drm_atomic_helper_connector_reset(connector, &vcs->base);
1195}
1196
1197
1198/**
1199 * vmw_du_connector_destroy_state - destroy connector state
1200 * @connector: DRM connector
1201 * @state: state object to destroy
1202 *
1203 * Destroys the connector state (both common and vmw-specific) for the
1204 * specified plane.
1205 */
1206void
1207vmw_du_connector_destroy_state(struct drm_connector *connector,
1208 struct drm_connector_state *state)
1209{
1210 drm_atomic_helper_connector_destroy_state(connector, state);
1211}
1212/*
1213 * Generic framebuffer code
1214 */
1215
1216/*
1217 * Surface framebuffer code
1218 */
1219
1220static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
1221{
1222 struct vmw_framebuffer_surface *vfbs =
1223 vmw_framebuffer_to_vfbs(framebuffer);
1224
1225 drm_framebuffer_cleanup(framebuffer);
1226 vmw_user_object_unref(&vfbs->uo);
1227
1228 kfree(vfbs);
1229}
1230
1231/**
1232 * vmw_kms_readback - Perform a readback from the screen system to
1233 * a buffer-object backed framebuffer.
1234 *
1235 * @dev_priv: Pointer to the device private structure.
1236 * @file_priv: Pointer to a struct drm_file identifying the caller.
1237 * Must be set to NULL if @user_fence_rep is NULL.
1238 * @vfb: Pointer to the buffer-object backed framebuffer.
1239 * @user_fence_rep: User-space provided structure for fence information.
1240 * Must be set to non-NULL if @file_priv is non-NULL.
1241 * @vclips: Array of clip rects.
1242 * @num_clips: Number of clip rects in @vclips.
1243 *
1244 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
1245 * interrupted.
1246 */
1247int vmw_kms_readback(struct vmw_private *dev_priv,
1248 struct drm_file *file_priv,
1249 struct vmw_framebuffer *vfb,
1250 struct drm_vmw_fence_rep __user *user_fence_rep,
1251 struct drm_vmw_rect *vclips,
1252 uint32_t num_clips)
1253{
1254 switch (dev_priv->active_display_unit) {
1255 case vmw_du_screen_object:
1256 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
1257 user_fence_rep, vclips, num_clips,
1258 NULL);
1259 case vmw_du_screen_target:
1260 return vmw_kms_stdu_readback(dev_priv, file_priv, vfb,
1261 user_fence_rep, NULL, vclips, num_clips,
1262 1, NULL);
1263 default:
1264 WARN_ONCE(true,
1265 "Readback called with invalid display system.\n");
1266}
1267
1268 return -ENOSYS;
1269}
1270
1271static int vmw_framebuffer_surface_create_handle(struct drm_framebuffer *fb,
1272 struct drm_file *file_priv,
1273 unsigned int *handle)
1274{
1275 struct vmw_framebuffer_surface *vfbs = vmw_framebuffer_to_vfbs(fb);
1276 struct vmw_bo *bo = vmw_user_object_buffer(&vfbs->uo);
1277
1278 if (WARN_ON(!bo))
1279 return -EINVAL;
1280 return drm_gem_handle_create(file_priv, &bo->tbo.base, handle);
1281}
1282
1283static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
1284 .create_handle = vmw_framebuffer_surface_create_handle,
1285 .destroy = vmw_framebuffer_surface_destroy,
1286 .dirty = drm_atomic_helper_dirtyfb,
1287};
1288
1289static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
1290 struct vmw_user_object *uo,
1291 struct vmw_framebuffer **out,
1292 const struct drm_mode_fb_cmd2
1293 *mode_cmd)
1294
1295{
1296 struct drm_device *dev = &dev_priv->drm;
1297 struct vmw_framebuffer_surface *vfbs;
1298 struct vmw_surface *surface;
1299 int ret;
1300
1301 /* 3D is only supported on HWv8 and newer hosts */
1302 if (dev_priv->active_display_unit == vmw_du_legacy)
1303 return -ENOSYS;
1304
1305 surface = vmw_user_object_surface(uo);
1306
1307 /*
1308 * Sanity checks.
1309 */
1310
1311 if (!drm_any_plane_has_format(&dev_priv->drm,
1312 mode_cmd->pixel_format,
1313 mode_cmd->modifier[0])) {
1314 drm_dbg(&dev_priv->drm,
1315 "unsupported pixel format %p4cc / modifier 0x%llx\n",
1316 &mode_cmd->pixel_format, mode_cmd->modifier[0]);
1317 return -EINVAL;
1318 }
1319
1320 /* Surface must be marked as a scanout. */
1321 if (unlikely(!surface->metadata.scanout))
1322 return -EINVAL;
1323
1324 if (unlikely(surface->metadata.mip_levels[0] != 1 ||
1325 surface->metadata.num_sizes != 1 ||
1326 surface->metadata.base_size.width < mode_cmd->width ||
1327 surface->metadata.base_size.height < mode_cmd->height ||
1328 surface->metadata.base_size.depth != 1)) {
1329 DRM_ERROR("Incompatible surface dimensions "
1330 "for requested mode.\n");
1331 return -EINVAL;
1332 }
1333
1334 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
1335 if (!vfbs) {
1336 ret = -ENOMEM;
1337 goto out_err1;
1338 }
1339
1340 drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd);
1341 memcpy(&vfbs->uo, uo, sizeof(vfbs->uo));
1342 vmw_user_object_ref(&vfbs->uo);
1343
1344 *out = &vfbs->base;
1345
1346 ret = drm_framebuffer_init(dev, &vfbs->base.base,
1347 &vmw_framebuffer_surface_funcs);
1348 if (ret)
1349 goto out_err2;
1350
1351 return 0;
1352
1353out_err2:
1354 vmw_user_object_unref(&vfbs->uo);
1355 kfree(vfbs);
1356out_err1:
1357 return ret;
1358}
1359
1360/*
1361 * Buffer-object framebuffer code
1362 */
1363
1364static int vmw_framebuffer_bo_create_handle(struct drm_framebuffer *fb,
1365 struct drm_file *file_priv,
1366 unsigned int *handle)
1367{
1368 struct vmw_framebuffer_bo *vfbd =
1369 vmw_framebuffer_to_vfbd(fb);
1370 return drm_gem_handle_create(file_priv, &vfbd->buffer->tbo.base, handle);
1371}
1372
1373static void vmw_framebuffer_bo_destroy(struct drm_framebuffer *framebuffer)
1374{
1375 struct vmw_framebuffer_bo *vfbd =
1376 vmw_framebuffer_to_vfbd(framebuffer);
1377
1378 drm_framebuffer_cleanup(framebuffer);
1379 vmw_bo_unreference(&vfbd->buffer);
1380
1381 kfree(vfbd);
1382}
1383
1384static const struct drm_framebuffer_funcs vmw_framebuffer_bo_funcs = {
1385 .create_handle = vmw_framebuffer_bo_create_handle,
1386 .destroy = vmw_framebuffer_bo_destroy,
1387 .dirty = drm_atomic_helper_dirtyfb,
1388};
1389
1390static int vmw_kms_new_framebuffer_bo(struct vmw_private *dev_priv,
1391 struct vmw_bo *bo,
1392 struct vmw_framebuffer **out,
1393 const struct drm_mode_fb_cmd2
1394 *mode_cmd)
1395
1396{
1397 struct drm_device *dev = &dev_priv->drm;
1398 struct vmw_framebuffer_bo *vfbd;
1399 unsigned int requested_size;
1400 int ret;
1401
1402 requested_size = mode_cmd->height * mode_cmd->pitches[0];
1403 if (unlikely(requested_size > bo->tbo.base.size)) {
1404 DRM_ERROR("Screen buffer object size is too small "
1405 "for requested mode.\n");
1406 return -EINVAL;
1407 }
1408
1409 if (!drm_any_plane_has_format(&dev_priv->drm,
1410 mode_cmd->pixel_format,
1411 mode_cmd->modifier[0])) {
1412 drm_dbg(&dev_priv->drm,
1413 "unsupported pixel format %p4cc / modifier 0x%llx\n",
1414 &mode_cmd->pixel_format, mode_cmd->modifier[0]);
1415 return -EINVAL;
1416 }
1417
1418 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1419 if (!vfbd) {
1420 ret = -ENOMEM;
1421 goto out_err1;
1422 }
1423
1424 vfbd->base.base.obj[0] = &bo->tbo.base;
1425 drm_helper_mode_fill_fb_struct(dev, &vfbd->base.base, mode_cmd);
1426 vfbd->base.bo = true;
1427 vfbd->buffer = vmw_bo_reference(bo);
1428 *out = &vfbd->base;
1429
1430 ret = drm_framebuffer_init(dev, &vfbd->base.base,
1431 &vmw_framebuffer_bo_funcs);
1432 if (ret)
1433 goto out_err2;
1434
1435 return 0;
1436
1437out_err2:
1438 vmw_bo_unreference(&bo);
1439 kfree(vfbd);
1440out_err1:
1441 return ret;
1442}
1443
1444
1445/**
1446 * vmw_kms_srf_ok - check if a surface can be created
1447 *
1448 * @dev_priv: Pointer to device private struct.
1449 * @width: requested width
1450 * @height: requested height
1451 *
1452 * Surfaces need to be less than texture size
1453 */
1454static bool
1455vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height)
1456{
1457 if (width > dev_priv->texture_max_width ||
1458 height > dev_priv->texture_max_height)
1459 return false;
1460
1461 return true;
1462}
1463
1464/**
1465 * vmw_kms_new_framebuffer - Create a new framebuffer.
1466 *
1467 * @dev_priv: Pointer to device private struct.
1468 * @uo: Pointer to user object to wrap the kms framebuffer around.
1469 * Either the buffer or surface inside the user object must be NULL.
1470 * @mode_cmd: Frame-buffer metadata.
1471 */
1472struct vmw_framebuffer *
1473vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
1474 struct vmw_user_object *uo,
1475 const struct drm_mode_fb_cmd2 *mode_cmd)
1476{
1477 struct vmw_framebuffer *vfb = NULL;
1478 int ret;
1479
1480 /* Create the new framebuffer depending one what we have */
1481 if (vmw_user_object_surface(uo)) {
1482 ret = vmw_kms_new_framebuffer_surface(dev_priv, uo, &vfb,
1483 mode_cmd);
1484 } else if (uo->buffer) {
1485 ret = vmw_kms_new_framebuffer_bo(dev_priv, uo->buffer, &vfb,
1486 mode_cmd);
1487 } else {
1488 BUG();
1489 }
1490
1491 if (ret)
1492 return ERR_PTR(ret);
1493
1494 return vfb;
1495}
1496
1497/*
1498 * Generic Kernel modesetting functions
1499 */
1500
1501static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1502 struct drm_file *file_priv,
1503 const struct drm_mode_fb_cmd2 *mode_cmd)
1504{
1505 struct vmw_private *dev_priv = vmw_priv(dev);
1506 struct vmw_framebuffer *vfb = NULL;
1507 struct vmw_user_object uo = {0};
1508 int ret;
1509
1510 /* returns either a bo or surface */
1511 ret = vmw_user_object_lookup(dev_priv, file_priv, mode_cmd->handles[0],
1512 &uo);
1513 if (ret) {
1514 DRM_ERROR("Invalid buffer object handle %u (0x%x).\n",
1515 mode_cmd->handles[0], mode_cmd->handles[0]);
1516 goto err_out;
1517 }
1518
1519
1520 if (vmw_user_object_surface(&uo) &&
1521 !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) {
1522 DRM_ERROR("Surface size cannot exceed %dx%d\n",
1523 dev_priv->texture_max_width,
1524 dev_priv->texture_max_height);
1525 ret = -EINVAL;
1526 goto err_out;
1527 }
1528
1529
1530 vfb = vmw_kms_new_framebuffer(dev_priv, &uo, mode_cmd);
1531 if (IS_ERR(vfb)) {
1532 ret = PTR_ERR(vfb);
1533 goto err_out;
1534 }
1535
1536err_out:
1537 /* vmw_user_object_lookup takes one ref so does new_fb */
1538 vmw_user_object_unref(&uo);
1539
1540 if (ret) {
1541 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1542 return ERR_PTR(ret);
1543 }
1544
1545 return &vfb->base;
1546}
1547
1548/**
1549 * vmw_kms_check_display_memory - Validates display memory required for a
1550 * topology
1551 * @dev: DRM device
1552 * @num_rects: number of drm_rect in rects
1553 * @rects: array of drm_rect representing the topology to validate indexed by
1554 * crtc index.
1555 *
1556 * Returns:
1557 * 0 on success otherwise negative error code
1558 */
1559static int vmw_kms_check_display_memory(struct drm_device *dev,
1560 uint32_t num_rects,
1561 struct drm_rect *rects)
1562{
1563 struct vmw_private *dev_priv = vmw_priv(dev);
1564 struct drm_rect bounding_box = {0};
1565 u64 total_pixels = 0, pixel_mem, bb_mem;
1566 int i;
1567
1568 for (i = 0; i < num_rects; i++) {
1569 /*
1570 * For STDU only individual screen (screen target) is limited by
1571 * SCREENTARGET_MAX_WIDTH/HEIGHT registers.
1572 */
1573 if (dev_priv->active_display_unit == vmw_du_screen_target &&
1574 (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width ||
1575 drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) {
1576 VMW_DEBUG_KMS("Screen size not supported.\n");
1577 return -EINVAL;
1578 }
1579
1580 /* Bounding box upper left is at (0,0). */
1581 if (rects[i].x2 > bounding_box.x2)
1582 bounding_box.x2 = rects[i].x2;
1583
1584 if (rects[i].y2 > bounding_box.y2)
1585 bounding_box.y2 = rects[i].y2;
1586
1587 total_pixels += (u64) drm_rect_width(&rects[i]) *
1588 (u64) drm_rect_height(&rects[i]);
1589 }
1590
1591 /* Virtual svga device primary limits are always in 32-bpp. */
1592 pixel_mem = total_pixels * 4;
1593
1594 /*
1595 * For HV10 and below prim_bb_mem is vram size. When
1596 * SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM is not present vram size is
1597 * limit on primary bounding box
1598 */
1599 if (pixel_mem > dev_priv->max_primary_mem) {
1600 VMW_DEBUG_KMS("Combined output size too large.\n");
1601 return -EINVAL;
1602 }
1603
1604 /* SVGA_CAP_NO_BB_RESTRICTION is available for STDU only. */
1605 if (dev_priv->active_display_unit != vmw_du_screen_target ||
1606 !(dev_priv->capabilities & SVGA_CAP_NO_BB_RESTRICTION)) {
1607 bb_mem = (u64) bounding_box.x2 * bounding_box.y2 * 4;
1608
1609 if (bb_mem > dev_priv->max_primary_mem) {
1610 VMW_DEBUG_KMS("Topology is beyond supported limits.\n");
1611 return -EINVAL;
1612 }
1613 }
1614
1615 return 0;
1616}
1617
1618/**
1619 * vmw_crtc_state_and_lock - Return new or current crtc state with locked
1620 * crtc mutex
1621 * @state: The atomic state pointer containing the new atomic state
1622 * @crtc: The crtc
1623 *
1624 * This function returns the new crtc state if it's part of the state update.
1625 * Otherwise returns the current crtc state. It also makes sure that the
1626 * crtc mutex is locked.
1627 *
1628 * Returns: A valid crtc state pointer or NULL. It may also return a
1629 * pointer error, in particular -EDEADLK if locking needs to be rerun.
1630 */
1631static struct drm_crtc_state *
1632vmw_crtc_state_and_lock(struct drm_atomic_state *state, struct drm_crtc *crtc)
1633{
1634 struct drm_crtc_state *crtc_state;
1635
1636 crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
1637 if (crtc_state) {
1638 lockdep_assert_held(&crtc->mutex.mutex.base);
1639 } else {
1640 int ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx);
1641
1642 if (ret != 0 && ret != -EALREADY)
1643 return ERR_PTR(ret);
1644
1645 crtc_state = crtc->state;
1646 }
1647
1648 return crtc_state;
1649}
1650
1651/**
1652 * vmw_kms_check_implicit - Verify that all implicit display units scan out
1653 * from the same fb after the new state is committed.
1654 * @dev: The drm_device.
1655 * @state: The new state to be checked.
1656 *
1657 * Returns:
1658 * Zero on success,
1659 * -EINVAL on invalid state,
1660 * -EDEADLK if modeset locking needs to be rerun.
1661 */
1662static int vmw_kms_check_implicit(struct drm_device *dev,
1663 struct drm_atomic_state *state)
1664{
1665 struct drm_framebuffer *implicit_fb = NULL;
1666 struct drm_crtc *crtc;
1667 struct drm_crtc_state *crtc_state;
1668 struct drm_plane_state *plane_state;
1669
1670 drm_for_each_crtc(crtc, dev) {
1671 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1672
1673 if (!du->is_implicit)
1674 continue;
1675
1676 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1677 if (IS_ERR(crtc_state))
1678 return PTR_ERR(crtc_state);
1679
1680 if (!crtc_state || !crtc_state->enable)
1681 continue;
1682
1683 /*
1684 * Can't move primary planes across crtcs, so this is OK.
1685 * It also means we don't need to take the plane mutex.
1686 */
1687 plane_state = du->primary.state;
1688 if (plane_state->crtc != crtc)
1689 continue;
1690
1691 if (!implicit_fb)
1692 implicit_fb = plane_state->fb;
1693 else if (implicit_fb != plane_state->fb)
1694 return -EINVAL;
1695 }
1696
1697 return 0;
1698}
1699
1700/**
1701 * vmw_kms_check_topology - Validates topology in drm_atomic_state
1702 * @dev: DRM device
1703 * @state: the driver state object
1704 *
1705 * Returns:
1706 * 0 on success otherwise negative error code
1707 */
1708static int vmw_kms_check_topology(struct drm_device *dev,
1709 struct drm_atomic_state *state)
1710{
1711 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
1712 struct drm_rect *rects;
1713 struct drm_crtc *crtc;
1714 uint32_t i;
1715 int ret = 0;
1716
1717 rects = kcalloc(dev->mode_config.num_crtc, sizeof(struct drm_rect),
1718 GFP_KERNEL);
1719 if (!rects)
1720 return -ENOMEM;
1721
1722 drm_for_each_crtc(crtc, dev) {
1723 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1724 struct drm_crtc_state *crtc_state;
1725
1726 i = drm_crtc_index(crtc);
1727
1728 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1729 if (IS_ERR(crtc_state)) {
1730 ret = PTR_ERR(crtc_state);
1731 goto clean;
1732 }
1733
1734 if (!crtc_state)
1735 continue;
1736
1737 if (crtc_state->enable) {
1738 rects[i].x1 = du->gui_x;
1739 rects[i].y1 = du->gui_y;
1740 rects[i].x2 = du->gui_x + crtc_state->mode.hdisplay;
1741 rects[i].y2 = du->gui_y + crtc_state->mode.vdisplay;
1742 } else {
1743 rects[i].x1 = 0;
1744 rects[i].y1 = 0;
1745 rects[i].x2 = 0;
1746 rects[i].y2 = 0;
1747 }
1748 }
1749
1750 /* Determine change to topology due to new atomic state */
1751 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
1752 new_crtc_state, i) {
1753 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1754 struct drm_connector *connector;
1755 struct drm_connector_state *conn_state;
1756 struct vmw_connector_state *vmw_conn_state;
1757
1758 if (!du->pref_active && new_crtc_state->enable) {
1759 VMW_DEBUG_KMS("Enabling a disabled display unit\n");
1760 ret = -EINVAL;
1761 goto clean;
1762 }
1763
1764 /*
1765 * For vmwgfx each crtc has only one connector attached and it
1766 * is not changed so don't really need to check the
1767 * crtc->connector_mask and iterate over it.
1768 */
1769 connector = &du->connector;
1770 conn_state = drm_atomic_get_connector_state(state, connector);
1771 if (IS_ERR(conn_state)) {
1772 ret = PTR_ERR(conn_state);
1773 goto clean;
1774 }
1775
1776 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
1777 vmw_conn_state->gui_x = du->gui_x;
1778 vmw_conn_state->gui_y = du->gui_y;
1779 }
1780
1781 ret = vmw_kms_check_display_memory(dev, dev->mode_config.num_crtc,
1782 rects);
1783
1784clean:
1785 kfree(rects);
1786 return ret;
1787}
1788
1789/**
1790 * vmw_kms_atomic_check_modeset- validate state object for modeset changes
1791 *
1792 * @dev: DRM device
1793 * @state: the driver state object
1794 *
1795 * This is a simple wrapper around drm_atomic_helper_check_modeset() for
1796 * us to assign a value to mode->crtc_clock so that
1797 * drm_calc_timestamping_constants() won't throw an error message
1798 *
1799 * Returns:
1800 * Zero for success or -errno
1801 */
1802static int
1803vmw_kms_atomic_check_modeset(struct drm_device *dev,
1804 struct drm_atomic_state *state)
1805{
1806 struct drm_crtc *crtc;
1807 struct drm_crtc_state *crtc_state;
1808 bool need_modeset = false;
1809 int i, ret;
1810
1811 ret = drm_atomic_helper_check(dev, state);
1812 if (ret)
1813 return ret;
1814
1815 ret = vmw_kms_check_implicit(dev, state);
1816 if (ret) {
1817 VMW_DEBUG_KMS("Invalid implicit state\n");
1818 return ret;
1819 }
1820
1821 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
1822 if (drm_atomic_crtc_needs_modeset(crtc_state))
1823 need_modeset = true;
1824 }
1825
1826 if (need_modeset)
1827 return vmw_kms_check_topology(dev, state);
1828
1829 return ret;
1830}
1831
1832static const struct drm_mode_config_funcs vmw_kms_funcs = {
1833 .fb_create = vmw_kms_fb_create,
1834 .atomic_check = vmw_kms_atomic_check_modeset,
1835 .atomic_commit = drm_atomic_helper_commit,
1836};
1837
1838static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1839 struct drm_file *file_priv,
1840 struct vmw_framebuffer *vfb,
1841 struct vmw_surface *surface,
1842 uint32_t sid,
1843 int32_t destX, int32_t destY,
1844 struct drm_vmw_rect *clips,
1845 uint32_t num_clips)
1846{
1847 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1848 &surface->res, destX, destY,
1849 num_clips, 1, NULL, NULL);
1850}
1851
1852
1853int vmw_kms_present(struct vmw_private *dev_priv,
1854 struct drm_file *file_priv,
1855 struct vmw_framebuffer *vfb,
1856 struct vmw_surface *surface,
1857 uint32_t sid,
1858 int32_t destX, int32_t destY,
1859 struct drm_vmw_rect *clips,
1860 uint32_t num_clips)
1861{
1862 int ret;
1863
1864 switch (dev_priv->active_display_unit) {
1865 case vmw_du_screen_target:
1866 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1867 &surface->res, destX, destY,
1868 num_clips, 1, NULL, NULL);
1869 break;
1870 case vmw_du_screen_object:
1871 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1872 sid, destX, destY, clips,
1873 num_clips);
1874 break;
1875 default:
1876 WARN_ONCE(true,
1877 "Present called with invalid display system.\n");
1878 ret = -ENOSYS;
1879 break;
1880 }
1881 if (ret)
1882 return ret;
1883
1884 vmw_cmd_flush(dev_priv, false);
1885
1886 return 0;
1887}
1888
1889static void
1890vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv)
1891{
1892 if (dev_priv->hotplug_mode_update_property)
1893 return;
1894
1895 dev_priv->hotplug_mode_update_property =
1896 drm_property_create_range(&dev_priv->drm,
1897 DRM_MODE_PROP_IMMUTABLE,
1898 "hotplug_mode_update", 0, 1);
1899}
1900
1901static void
1902vmw_atomic_commit_tail(struct drm_atomic_state *old_state)
1903{
1904 struct vmw_private *vmw = vmw_priv(old_state->dev);
1905 struct drm_crtc *crtc;
1906 struct drm_crtc_state *old_crtc_state;
1907 int i;
1908
1909 drm_atomic_helper_commit_tail(old_state);
1910
1911 if (vmw->vkms_enabled) {
1912 for_each_old_crtc_in_state(old_state, crtc, old_crtc_state, i) {
1913 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1914 (void)old_crtc_state;
1915 flush_work(&du->vkms.crc_generator_work);
1916 }
1917 }
1918}
1919
1920static const struct drm_mode_config_helper_funcs vmw_mode_config_helpers = {
1921 .atomic_commit_tail = vmw_atomic_commit_tail,
1922};
1923
1924int vmw_kms_init(struct vmw_private *dev_priv)
1925{
1926 struct drm_device *dev = &dev_priv->drm;
1927 int ret;
1928 static const char *display_unit_names[] = {
1929 "Invalid",
1930 "Legacy",
1931 "Screen Object",
1932 "Screen Target",
1933 "Invalid (max)"
1934 };
1935
1936 drm_mode_config_init(dev);
1937 dev->mode_config.funcs = &vmw_kms_funcs;
1938 dev->mode_config.min_width = 1;
1939 dev->mode_config.min_height = 1;
1940 dev->mode_config.max_width = dev_priv->texture_max_width;
1941 dev->mode_config.max_height = dev_priv->texture_max_height;
1942 dev->mode_config.preferred_depth = dev_priv->assume_16bpp ? 16 : 32;
1943 dev->mode_config.helper_private = &vmw_mode_config_helpers;
1944
1945 drm_mode_create_suggested_offset_properties(dev);
1946 vmw_kms_create_hotplug_mode_update_property(dev_priv);
1947
1948 ret = vmw_kms_stdu_init_display(dev_priv);
1949 if (ret) {
1950 ret = vmw_kms_sou_init_display(dev_priv);
1951 if (ret) /* Fallback */
1952 ret = vmw_kms_ldu_init_display(dev_priv);
1953 }
1954 BUILD_BUG_ON(ARRAY_SIZE(display_unit_names) != (vmw_du_max + 1));
1955 drm_info(&dev_priv->drm, "%s display unit initialized\n",
1956 display_unit_names[dev_priv->active_display_unit]);
1957
1958 return ret;
1959}
1960
1961int vmw_kms_close(struct vmw_private *dev_priv)
1962{
1963 int ret = 0;
1964
1965 /*
1966 * Docs says we should take the lock before calling this function
1967 * but since it destroys encoders and our destructor calls
1968 * drm_encoder_cleanup which takes the lock we deadlock.
1969 */
1970 drm_mode_config_cleanup(&dev_priv->drm);
1971 if (dev_priv->active_display_unit == vmw_du_legacy)
1972 ret = vmw_kms_ldu_close_display(dev_priv);
1973
1974 return ret;
1975}
1976
1977int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1978 struct drm_file *file_priv)
1979{
1980 struct drm_vmw_cursor_bypass_arg *arg = data;
1981 struct vmw_display_unit *du;
1982 struct drm_crtc *crtc;
1983 int ret = 0;
1984
1985 mutex_lock(&dev->mode_config.mutex);
1986 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1987
1988 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1989 du = vmw_crtc_to_du(crtc);
1990 du->hotspot_x = arg->xhot;
1991 du->hotspot_y = arg->yhot;
1992 }
1993
1994 mutex_unlock(&dev->mode_config.mutex);
1995 return 0;
1996 }
1997
1998 crtc = drm_crtc_find(dev, file_priv, arg->crtc_id);
1999 if (!crtc) {
2000 ret = -ENOENT;
2001 goto out;
2002 }
2003
2004 du = vmw_crtc_to_du(crtc);
2005
2006 du->hotspot_x = arg->xhot;
2007 du->hotspot_y = arg->yhot;
2008
2009out:
2010 mutex_unlock(&dev->mode_config.mutex);
2011
2012 return ret;
2013}
2014
2015int vmw_kms_write_svga(struct vmw_private *vmw_priv,
2016 unsigned width, unsigned height, unsigned pitch,
2017 unsigned bpp, unsigned depth)
2018{
2019 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
2020 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
2021 else if (vmw_fifo_have_pitchlock(vmw_priv))
2022 vmw_fifo_mem_write(vmw_priv, SVGA_FIFO_PITCHLOCK, pitch);
2023 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
2024 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
2025 if ((vmw_priv->capabilities & SVGA_CAP_8BIT_EMULATION) != 0)
2026 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
2027
2028 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
2029 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
2030 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
2031 return -EINVAL;
2032 }
2033
2034 return 0;
2035}
2036
2037static
2038bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
2039 u64 pitch,
2040 u64 height)
2041{
2042 return (pitch * height) < (u64)dev_priv->vram_size;
2043}
2044
2045/**
2046 * vmw_du_update_layout - Update the display unit with topology from resolution
2047 * plugin and generate DRM uevent
2048 * @dev_priv: device private
2049 * @num_rects: number of drm_rect in rects
2050 * @rects: toplogy to update
2051 */
2052static int vmw_du_update_layout(struct vmw_private *dev_priv,
2053 unsigned int num_rects, struct drm_rect *rects)
2054{
2055 struct drm_device *dev = &dev_priv->drm;
2056 struct vmw_display_unit *du;
2057 struct drm_connector *con;
2058 struct drm_connector_list_iter conn_iter;
2059 struct drm_modeset_acquire_ctx ctx;
2060 struct drm_crtc *crtc;
2061 int ret;
2062
2063 /* Currently gui_x/y is protected with the crtc mutex */
2064 mutex_lock(&dev->mode_config.mutex);
2065 drm_modeset_acquire_init(&ctx, 0);
2066retry:
2067 drm_for_each_crtc(crtc, dev) {
2068 ret = drm_modeset_lock(&crtc->mutex, &ctx);
2069 if (ret < 0) {
2070 if (ret == -EDEADLK) {
2071 drm_modeset_backoff(&ctx);
2072 goto retry;
2073 }
2074 goto out_fini;
2075 }
2076 }
2077
2078 drm_connector_list_iter_begin(dev, &conn_iter);
2079 drm_for_each_connector_iter(con, &conn_iter) {
2080 du = vmw_connector_to_du(con);
2081 if (num_rects > du->unit) {
2082 du->pref_width = drm_rect_width(&rects[du->unit]);
2083 du->pref_height = drm_rect_height(&rects[du->unit]);
2084 du->pref_active = true;
2085 du->gui_x = rects[du->unit].x1;
2086 du->gui_y = rects[du->unit].y1;
2087 } else {
2088 du->pref_width = VMWGFX_MIN_INITIAL_WIDTH;
2089 du->pref_height = VMWGFX_MIN_INITIAL_HEIGHT;
2090 du->pref_active = false;
2091 du->gui_x = 0;
2092 du->gui_y = 0;
2093 }
2094 }
2095 drm_connector_list_iter_end(&conn_iter);
2096
2097 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
2098 du = vmw_connector_to_du(con);
2099 if (num_rects > du->unit) {
2100 drm_object_property_set_value
2101 (&con->base, dev->mode_config.suggested_x_property,
2102 du->gui_x);
2103 drm_object_property_set_value
2104 (&con->base, dev->mode_config.suggested_y_property,
2105 du->gui_y);
2106 } else {
2107 drm_object_property_set_value
2108 (&con->base, dev->mode_config.suggested_x_property,
2109 0);
2110 drm_object_property_set_value
2111 (&con->base, dev->mode_config.suggested_y_property,
2112 0);
2113 }
2114 con->status = vmw_du_connector_detect(con, true);
2115 }
2116out_fini:
2117 drm_modeset_drop_locks(&ctx);
2118 drm_modeset_acquire_fini(&ctx);
2119 mutex_unlock(&dev->mode_config.mutex);
2120
2121 drm_sysfs_hotplug_event(dev);
2122
2123 return 0;
2124}
2125
2126int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
2127 u16 *r, u16 *g, u16 *b,
2128 uint32_t size,
2129 struct drm_modeset_acquire_ctx *ctx)
2130{
2131 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
2132 int i;
2133
2134 for (i = 0; i < size; i++) {
2135 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
2136 r[i], g[i], b[i]);
2137 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
2138 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
2139 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
2140 }
2141
2142 return 0;
2143}
2144
2145int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
2146{
2147 return 0;
2148}
2149
2150enum drm_connector_status
2151vmw_du_connector_detect(struct drm_connector *connector, bool force)
2152{
2153 uint32_t num_displays;
2154 struct drm_device *dev = connector->dev;
2155 struct vmw_private *dev_priv = vmw_priv(dev);
2156 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2157
2158 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
2159
2160 return ((vmw_connector_to_du(connector)->unit < num_displays &&
2161 du->pref_active) ?
2162 connector_status_connected : connector_status_disconnected);
2163}
2164
2165/**
2166 * vmw_guess_mode_timing - Provide fake timings for a
2167 * 60Hz vrefresh mode.
2168 *
2169 * @mode: Pointer to a struct drm_display_mode with hdisplay and vdisplay
2170 * members filled in.
2171 */
2172void vmw_guess_mode_timing(struct drm_display_mode *mode)
2173{
2174 mode->hsync_start = mode->hdisplay + 50;
2175 mode->hsync_end = mode->hsync_start + 50;
2176 mode->htotal = mode->hsync_end + 50;
2177
2178 mode->vsync_start = mode->vdisplay + 50;
2179 mode->vsync_end = mode->vsync_start + 50;
2180 mode->vtotal = mode->vsync_end + 50;
2181
2182 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
2183}
2184
2185
2186/**
2187 * vmw_kms_update_layout_ioctl - Handler for DRM_VMW_UPDATE_LAYOUT ioctl
2188 * @dev: drm device for the ioctl
2189 * @data: data pointer for the ioctl
2190 * @file_priv: drm file for the ioctl call
2191 *
2192 * Update preferred topology of display unit as per ioctl request. The topology
2193 * is expressed as array of drm_vmw_rect.
2194 * e.g.
2195 * [0 0 640 480] [640 0 800 600] [0 480 640 480]
2196 *
2197 * NOTE:
2198 * The x and y offset (upper left) in drm_vmw_rect cannot be less than 0. Beside
2199 * device limit on topology, x + w and y + h (lower right) cannot be greater
2200 * than INT_MAX. So topology beyond these limits will return with error.
2201 *
2202 * Returns:
2203 * Zero on success, negative errno on failure.
2204 */
2205int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2206 struct drm_file *file_priv)
2207{
2208 struct vmw_private *dev_priv = vmw_priv(dev);
2209 struct drm_mode_config *mode_config = &dev->mode_config;
2210 struct drm_vmw_update_layout_arg *arg =
2211 (struct drm_vmw_update_layout_arg *)data;
2212 const void __user *user_rects;
2213 struct drm_vmw_rect *rects;
2214 struct drm_rect *drm_rects;
2215 unsigned rects_size;
2216 int ret, i;
2217
2218 if (!arg->num_outputs) {
2219 struct drm_rect def_rect = {0, 0,
2220 VMWGFX_MIN_INITIAL_WIDTH,
2221 VMWGFX_MIN_INITIAL_HEIGHT};
2222 vmw_du_update_layout(dev_priv, 1, &def_rect);
2223 return 0;
2224 } else if (arg->num_outputs > VMWGFX_NUM_DISPLAY_UNITS) {
2225 return -E2BIG;
2226 }
2227
2228 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2229 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2230 GFP_KERNEL);
2231 if (unlikely(!rects))
2232 return -ENOMEM;
2233
2234 user_rects = (void __user *)(unsigned long)arg->rects;
2235 ret = copy_from_user(rects, user_rects, rects_size);
2236 if (unlikely(ret != 0)) {
2237 DRM_ERROR("Failed to get rects.\n");
2238 ret = -EFAULT;
2239 goto out_free;
2240 }
2241
2242 drm_rects = (struct drm_rect *)rects;
2243
2244 VMW_DEBUG_KMS("Layout count = %u\n", arg->num_outputs);
2245 for (i = 0; i < arg->num_outputs; i++) {
2246 struct drm_vmw_rect curr_rect;
2247
2248 /* Verify user-space for overflow as kernel use drm_rect */
2249 if ((rects[i].x + rects[i].w > INT_MAX) ||
2250 (rects[i].y + rects[i].h > INT_MAX)) {
2251 ret = -ERANGE;
2252 goto out_free;
2253 }
2254
2255 curr_rect = rects[i];
2256 drm_rects[i].x1 = curr_rect.x;
2257 drm_rects[i].y1 = curr_rect.y;
2258 drm_rects[i].x2 = curr_rect.x + curr_rect.w;
2259 drm_rects[i].y2 = curr_rect.y + curr_rect.h;
2260
2261 VMW_DEBUG_KMS(" x1 = %d y1 = %d x2 = %d y2 = %d\n",
2262 drm_rects[i].x1, drm_rects[i].y1,
2263 drm_rects[i].x2, drm_rects[i].y2);
2264
2265 /*
2266 * Currently this check is limiting the topology within
2267 * mode_config->max (which actually is max texture size
2268 * supported by virtual device). This limit is here to address
2269 * window managers that create a big framebuffer for whole
2270 * topology.
2271 */
2272 if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 ||
2273 drm_rects[i].x2 > mode_config->max_width ||
2274 drm_rects[i].y2 > mode_config->max_height) {
2275 VMW_DEBUG_KMS("Invalid layout %d %d %d %d\n",
2276 drm_rects[i].x1, drm_rects[i].y1,
2277 drm_rects[i].x2, drm_rects[i].y2);
2278 ret = -EINVAL;
2279 goto out_free;
2280 }
2281 }
2282
2283 ret = vmw_kms_check_display_memory(dev, arg->num_outputs, drm_rects);
2284
2285 if (ret == 0)
2286 vmw_du_update_layout(dev_priv, arg->num_outputs, drm_rects);
2287
2288out_free:
2289 kfree(rects);
2290 return ret;
2291}
2292
2293/**
2294 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
2295 * on a set of cliprects and a set of display units.
2296 *
2297 * @dev_priv: Pointer to a device private structure.
2298 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
2299 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
2300 * Cliprects are given in framebuffer coordinates.
2301 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
2302 * be NULL. Cliprects are given in source coordinates.
2303 * @dest_x: X coordinate offset for the crtc / destination clip rects.
2304 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
2305 * @num_clips: Number of cliprects in the @clips or @vclips array.
2306 * @increment: Integer with which to increment the clip counter when looping.
2307 * Used to skip a predetermined number of clip rects.
2308 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
2309 */
2310int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
2311 struct vmw_framebuffer *framebuffer,
2312 const struct drm_clip_rect *clips,
2313 const struct drm_vmw_rect *vclips,
2314 s32 dest_x, s32 dest_y,
2315 int num_clips,
2316 int increment,
2317 struct vmw_kms_dirty *dirty)
2318{
2319 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
2320 struct drm_crtc *crtc;
2321 u32 num_units = 0;
2322 u32 i, k;
2323
2324 dirty->dev_priv = dev_priv;
2325
2326 /* If crtc is passed, no need to iterate over other display units */
2327 if (dirty->crtc) {
2328 units[num_units++] = vmw_crtc_to_du(dirty->crtc);
2329 } else {
2330 list_for_each_entry(crtc, &dev_priv->drm.mode_config.crtc_list,
2331 head) {
2332 struct drm_plane *plane = crtc->primary;
2333
2334 if (plane->state->fb == &framebuffer->base)
2335 units[num_units++] = vmw_crtc_to_du(crtc);
2336 }
2337 }
2338
2339 for (k = 0; k < num_units; k++) {
2340 struct vmw_display_unit *unit = units[k];
2341 s32 crtc_x = unit->crtc.x;
2342 s32 crtc_y = unit->crtc.y;
2343 s32 crtc_width = unit->crtc.mode.hdisplay;
2344 s32 crtc_height = unit->crtc.mode.vdisplay;
2345 const struct drm_clip_rect *clips_ptr = clips;
2346 const struct drm_vmw_rect *vclips_ptr = vclips;
2347
2348 dirty->unit = unit;
2349 if (dirty->fifo_reserve_size > 0) {
2350 dirty->cmd = VMW_CMD_RESERVE(dev_priv,
2351 dirty->fifo_reserve_size);
2352 if (!dirty->cmd)
2353 return -ENOMEM;
2354
2355 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
2356 }
2357 dirty->num_hits = 0;
2358 for (i = 0; i < num_clips; i++, clips_ptr += increment,
2359 vclips_ptr += increment) {
2360 s32 clip_left;
2361 s32 clip_top;
2362
2363 /*
2364 * Select clip array type. Note that integer type
2365 * in @clips is unsigned short, whereas in @vclips
2366 * it's 32-bit.
2367 */
2368 if (clips) {
2369 dirty->fb_x = (s32) clips_ptr->x1;
2370 dirty->fb_y = (s32) clips_ptr->y1;
2371 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
2372 crtc_x;
2373 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
2374 crtc_y;
2375 } else {
2376 dirty->fb_x = vclips_ptr->x;
2377 dirty->fb_y = vclips_ptr->y;
2378 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
2379 dest_x - crtc_x;
2380 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
2381 dest_y - crtc_y;
2382 }
2383
2384 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
2385 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
2386
2387 /* Skip this clip if it's outside the crtc region */
2388 if (dirty->unit_x1 >= crtc_width ||
2389 dirty->unit_y1 >= crtc_height ||
2390 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
2391 continue;
2392
2393 /* Clip right and bottom to crtc limits */
2394 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
2395 crtc_width);
2396 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
2397 crtc_height);
2398
2399 /* Clip left and top to crtc limits */
2400 clip_left = min_t(s32, dirty->unit_x1, 0);
2401 clip_top = min_t(s32, dirty->unit_y1, 0);
2402 dirty->unit_x1 -= clip_left;
2403 dirty->unit_y1 -= clip_top;
2404 dirty->fb_x -= clip_left;
2405 dirty->fb_y -= clip_top;
2406
2407 dirty->clip(dirty);
2408 }
2409
2410 dirty->fifo_commit(dirty);
2411 }
2412
2413 return 0;
2414}
2415
2416/**
2417 * vmw_kms_helper_validation_finish - Helper for post KMS command submission
2418 * cleanup and fencing
2419 * @dev_priv: Pointer to the device-private struct
2420 * @file_priv: Pointer identifying the client when user-space fencing is used
2421 * @ctx: Pointer to the validation context
2422 * @out_fence: If non-NULL, returned refcounted fence-pointer
2423 * @user_fence_rep: If non-NULL, pointer to user-space address area
2424 * in which to copy user-space fence info
2425 */
2426void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
2427 struct drm_file *file_priv,
2428 struct vmw_validation_context *ctx,
2429 struct vmw_fence_obj **out_fence,
2430 struct drm_vmw_fence_rep __user *
2431 user_fence_rep)
2432{
2433 struct vmw_fence_obj *fence = NULL;
2434 uint32_t handle = 0;
2435 int ret = 0;
2436
2437 if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) ||
2438 out_fence)
2439 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
2440 file_priv ? &handle : NULL);
2441 vmw_validation_done(ctx, fence);
2442 if (file_priv)
2443 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
2444 ret, user_fence_rep, fence,
2445 handle, -1);
2446 if (out_fence)
2447 *out_fence = fence;
2448 else
2449 vmw_fence_obj_unreference(&fence);
2450}
2451
2452/**
2453 * vmw_kms_create_implicit_placement_property - Set up the implicit placement
2454 * property.
2455 *
2456 * @dev_priv: Pointer to a device private struct.
2457 *
2458 * Sets up the implicit placement property unless it's already set up.
2459 */
2460void
2461vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv)
2462{
2463 if (dev_priv->implicit_placement_property)
2464 return;
2465
2466 dev_priv->implicit_placement_property =
2467 drm_property_create_range(&dev_priv->drm,
2468 DRM_MODE_PROP_IMMUTABLE,
2469 "implicit_placement", 0, 1);
2470}
2471
2472/**
2473 * vmw_kms_suspend - Save modesetting state and turn modesetting off.
2474 *
2475 * @dev: Pointer to the drm device
2476 * Return: 0 on success. Negative error code on failure.
2477 */
2478int vmw_kms_suspend(struct drm_device *dev)
2479{
2480 struct vmw_private *dev_priv = vmw_priv(dev);
2481
2482 dev_priv->suspend_state = drm_atomic_helper_suspend(dev);
2483 if (IS_ERR(dev_priv->suspend_state)) {
2484 int ret = PTR_ERR(dev_priv->suspend_state);
2485
2486 DRM_ERROR("Failed kms suspend: %d\n", ret);
2487 dev_priv->suspend_state = NULL;
2488
2489 return ret;
2490 }
2491
2492 return 0;
2493}
2494
2495
2496/**
2497 * vmw_kms_resume - Re-enable modesetting and restore state
2498 *
2499 * @dev: Pointer to the drm device
2500 * Return: 0 on success. Negative error code on failure.
2501 *
2502 * State is resumed from a previous vmw_kms_suspend(). It's illegal
2503 * to call this function without a previous vmw_kms_suspend().
2504 */
2505int vmw_kms_resume(struct drm_device *dev)
2506{
2507 struct vmw_private *dev_priv = vmw_priv(dev);
2508 int ret;
2509
2510 if (WARN_ON(!dev_priv->suspend_state))
2511 return 0;
2512
2513 ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state);
2514 dev_priv->suspend_state = NULL;
2515
2516 return ret;
2517}
2518
2519/**
2520 * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
2521 *
2522 * @dev: Pointer to the drm device
2523 */
2524void vmw_kms_lost_device(struct drm_device *dev)
2525{
2526 drm_atomic_helper_shutdown(dev);
2527}
2528
2529/**
2530 * vmw_du_helper_plane_update - Helper to do plane update on a display unit.
2531 * @update: The closure structure.
2532 *
2533 * Call this helper after setting callbacks in &vmw_du_update_plane to do plane
2534 * update on display unit.
2535 *
2536 * Return: 0 on success or a negative error code on failure.
2537 */
2538int vmw_du_helper_plane_update(struct vmw_du_update_plane *update)
2539{
2540 struct drm_plane_state *state = update->plane->state;
2541 struct drm_plane_state *old_state = update->old_state;
2542 struct drm_atomic_helper_damage_iter iter;
2543 struct drm_rect clip;
2544 struct drm_rect bb;
2545 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
2546 uint32_t reserved_size = 0;
2547 uint32_t submit_size = 0;
2548 uint32_t curr_size = 0;
2549 uint32_t num_hits = 0;
2550 void *cmd_start;
2551 char *cmd_next;
2552 int ret;
2553
2554 /*
2555 * Iterate in advance to check if really need plane update and find the
2556 * number of clips that actually are in plane src for fifo allocation.
2557 */
2558 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2559 drm_atomic_for_each_plane_damage(&iter, &clip)
2560 num_hits++;
2561
2562 if (num_hits == 0)
2563 return 0;
2564
2565 if (update->vfb->bo) {
2566 struct vmw_framebuffer_bo *vfbbo =
2567 container_of(update->vfb, typeof(*vfbbo), base);
2568
2569 /*
2570 * For screen targets we want a mappable bo, for everything else we want
2571 * accelerated i.e. host backed (vram or gmr) bo. If the display unit
2572 * is not screen target then mob's shouldn't be available.
2573 */
2574 if (update->dev_priv->active_display_unit == vmw_du_screen_target) {
2575 vmw_bo_placement_set(vfbbo->buffer,
2576 VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_GMR,
2577 VMW_BO_DOMAIN_SYS | VMW_BO_DOMAIN_MOB | VMW_BO_DOMAIN_GMR);
2578 } else {
2579 WARN_ON(update->dev_priv->has_mob);
2580 vmw_bo_placement_set_default_accelerated(vfbbo->buffer);
2581 }
2582 ret = vmw_validation_add_bo(&val_ctx, vfbbo->buffer);
2583 } else {
2584 struct vmw_framebuffer_surface *vfbs =
2585 container_of(update->vfb, typeof(*vfbs), base);
2586 struct vmw_surface *surf = vmw_user_object_surface(&vfbs->uo);
2587
2588 ret = vmw_validation_add_resource(&val_ctx, &surf->res,
2589 0, VMW_RES_DIRTY_NONE, NULL,
2590 NULL);
2591 }
2592
2593 if (ret)
2594 return ret;
2595
2596 ret = vmw_validation_prepare(&val_ctx, update->mutex, update->intr);
2597 if (ret)
2598 goto out_unref;
2599
2600 reserved_size = update->calc_fifo_size(update, num_hits);
2601 cmd_start = VMW_CMD_RESERVE(update->dev_priv, reserved_size);
2602 if (!cmd_start) {
2603 ret = -ENOMEM;
2604 goto out_revert;
2605 }
2606
2607 cmd_next = cmd_start;
2608
2609 if (update->post_prepare) {
2610 curr_size = update->post_prepare(update, cmd_next);
2611 cmd_next += curr_size;
2612 submit_size += curr_size;
2613 }
2614
2615 if (update->pre_clip) {
2616 curr_size = update->pre_clip(update, cmd_next, num_hits);
2617 cmd_next += curr_size;
2618 submit_size += curr_size;
2619 }
2620
2621 bb.x1 = INT_MAX;
2622 bb.y1 = INT_MAX;
2623 bb.x2 = INT_MIN;
2624 bb.y2 = INT_MIN;
2625
2626 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2627 drm_atomic_for_each_plane_damage(&iter, &clip) {
2628 uint32_t fb_x = clip.x1;
2629 uint32_t fb_y = clip.y1;
2630
2631 vmw_du_translate_to_crtc(state, &clip);
2632 if (update->clip) {
2633 curr_size = update->clip(update, cmd_next, &clip, fb_x,
2634 fb_y);
2635 cmd_next += curr_size;
2636 submit_size += curr_size;
2637 }
2638 bb.x1 = min_t(int, bb.x1, clip.x1);
2639 bb.y1 = min_t(int, bb.y1, clip.y1);
2640 bb.x2 = max_t(int, bb.x2, clip.x2);
2641 bb.y2 = max_t(int, bb.y2, clip.y2);
2642 }
2643
2644 curr_size = update->post_clip(update, cmd_next, &bb);
2645 submit_size += curr_size;
2646
2647 if (reserved_size < submit_size)
2648 submit_size = 0;
2649
2650 vmw_cmd_commit(update->dev_priv, submit_size);
2651
2652 vmw_kms_helper_validation_finish(update->dev_priv, NULL, &val_ctx,
2653 update->out_fence, NULL);
2654 return ret;
2655
2656out_revert:
2657 vmw_validation_revert(&val_ctx);
2658
2659out_unref:
2660 vmw_validation_unref_lists(&val_ctx);
2661 return ret;
2662}
2663
2664/**
2665 * vmw_connector_mode_valid - implements drm_connector_helper_funcs.mode_valid callback
2666 *
2667 * @connector: the drm connector, part of a DU container
2668 * @mode: drm mode to check
2669 *
2670 * Returns MODE_OK on success, or a drm_mode_status error code.
2671 */
2672enum drm_mode_status vmw_connector_mode_valid(struct drm_connector *connector,
2673 struct drm_display_mode *mode)
2674{
2675 enum drm_mode_status ret;
2676 struct drm_device *dev = connector->dev;
2677 struct vmw_private *dev_priv = vmw_priv(dev);
2678 u32 assumed_cpp = 4;
2679
2680 if (dev_priv->assume_16bpp)
2681 assumed_cpp = 2;
2682
2683 ret = drm_mode_validate_size(mode, dev_priv->texture_max_width,
2684 dev_priv->texture_max_height);
2685 if (ret != MODE_OK)
2686 return ret;
2687
2688 if (!vmw_kms_validate_mode_vram(dev_priv,
2689 mode->hdisplay * assumed_cpp,
2690 mode->vdisplay))
2691 return MODE_MEM;
2692
2693 return MODE_OK;
2694}
2695
2696/**
2697 * vmw_connector_get_modes - implements drm_connector_helper_funcs.get_modes callback
2698 *
2699 * @connector: the drm connector, part of a DU container
2700 *
2701 * Returns the number of added modes.
2702 */
2703int vmw_connector_get_modes(struct drm_connector *connector)
2704{
2705 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2706 struct drm_device *dev = connector->dev;
2707 struct vmw_private *dev_priv = vmw_priv(dev);
2708 struct drm_display_mode *mode = NULL;
2709 struct drm_display_mode prefmode = { DRM_MODE("preferred",
2710 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
2711 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2712 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
2713 };
2714 u32 max_width;
2715 u32 max_height;
2716 u32 num_modes;
2717
2718 /* Add preferred mode */
2719 mode = drm_mode_duplicate(dev, &prefmode);
2720 if (!mode)
2721 return 0;
2722
2723 mode->hdisplay = du->pref_width;
2724 mode->vdisplay = du->pref_height;
2725 vmw_guess_mode_timing(mode);
2726 drm_mode_set_name(mode);
2727
2728 drm_mode_probed_add(connector, mode);
2729 drm_dbg_kms(dev, "preferred mode " DRM_MODE_FMT "\n", DRM_MODE_ARG(mode));
2730
2731 /* Probe connector for all modes not exceeding our geom limits */
2732 max_width = dev_priv->texture_max_width;
2733 max_height = dev_priv->texture_max_height;
2734
2735 if (dev_priv->active_display_unit == vmw_du_screen_target) {
2736 max_width = min(dev_priv->stdu_max_width, max_width);
2737 max_height = min(dev_priv->stdu_max_height, max_height);
2738 }
2739
2740 num_modes = 1 + drm_add_modes_noedid(connector, max_width, max_height);
2741
2742 return num_modes;
2743}
2744
2745struct vmw_user_object *vmw_user_object_ref(struct vmw_user_object *uo)
2746{
2747 if (uo->buffer)
2748 vmw_user_bo_ref(uo->buffer);
2749 else if (uo->surface)
2750 vmw_surface_reference(uo->surface);
2751 return uo;
2752}
2753
2754void vmw_user_object_unref(struct vmw_user_object *uo)
2755{
2756 if (uo->buffer)
2757 vmw_user_bo_unref(&uo->buffer);
2758 else if (uo->surface)
2759 vmw_surface_unreference(&uo->surface);
2760}
2761
2762struct vmw_bo *
2763vmw_user_object_buffer(struct vmw_user_object *uo)
2764{
2765 if (uo->buffer)
2766 return uo->buffer;
2767 else if (uo->surface)
2768 return uo->surface->res.guest_memory_bo;
2769 return NULL;
2770}
2771
2772struct vmw_surface *
2773vmw_user_object_surface(struct vmw_user_object *uo)
2774{
2775 if (uo->buffer)
2776 return uo->buffer->dumb_surface;
2777 return uo->surface;
2778}
2779
2780void *vmw_user_object_map(struct vmw_user_object *uo)
2781{
2782 struct vmw_bo *bo = vmw_user_object_buffer(uo);
2783
2784 WARN_ON(!bo);
2785 return vmw_bo_map_and_cache(bo);
2786}
2787
2788void *vmw_user_object_map_size(struct vmw_user_object *uo, size_t size)
2789{
2790 struct vmw_bo *bo = vmw_user_object_buffer(uo);
2791
2792 WARN_ON(!bo);
2793 return vmw_bo_map_and_cache_size(bo, size);
2794}
2795
2796void vmw_user_object_unmap(struct vmw_user_object *uo)
2797{
2798 struct vmw_bo *bo = vmw_user_object_buffer(uo);
2799 int ret;
2800
2801 WARN_ON(!bo);
2802
2803 /* Fence the mob creation so we are guarateed to have the mob */
2804 ret = ttm_bo_reserve(&bo->tbo, false, false, NULL);
2805 if (ret != 0)
2806 return;
2807
2808 vmw_bo_unmap(bo);
2809 vmw_bo_pin_reserved(bo, false);
2810
2811 ttm_bo_unreserve(&bo->tbo);
2812}
2813
2814bool vmw_user_object_is_mapped(struct vmw_user_object *uo)
2815{
2816 struct vmw_bo *bo;
2817
2818 if (!uo || vmw_user_object_is_null(uo))
2819 return false;
2820
2821 bo = vmw_user_object_buffer(uo);
2822
2823 if (WARN_ON(!bo))
2824 return false;
2825
2826 WARN_ON(bo->map.bo && !bo->map.virtual);
2827 return bo->map.virtual;
2828}
2829
2830bool vmw_user_object_is_null(struct vmw_user_object *uo)
2831{
2832 return !uo->buffer && !uo->surface;
2833}
1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/**************************************************************************
3 *
4 * Copyright 2009-2015 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#include <drm/drm_atomic.h>
29#include <drm/drm_atomic_helper.h>
30#include <drm/drm_damage_helper.h>
31#include <drm/drm_fourcc.h>
32#include <drm/drm_plane_helper.h>
33#include <drm/drm_rect.h>
34#include <drm/drm_sysfs.h>
35#include <drm/drm_vblank.h>
36
37#include "vmwgfx_kms.h"
38
39/* Might need a hrtimer here? */
40#define VMWGFX_PRESENT_RATE ((HZ / 60 > 0) ? HZ / 60 : 1)
41
42void vmw_du_cleanup(struct vmw_display_unit *du)
43{
44 drm_plane_cleanup(&du->primary);
45 drm_plane_cleanup(&du->cursor);
46
47 drm_connector_unregister(&du->connector);
48 drm_crtc_cleanup(&du->crtc);
49 drm_encoder_cleanup(&du->encoder);
50 drm_connector_cleanup(&du->connector);
51}
52
53/*
54 * Display Unit Cursor functions
55 */
56
57static int vmw_cursor_update_image(struct vmw_private *dev_priv,
58 u32 *image, u32 width, u32 height,
59 u32 hotspotX, u32 hotspotY)
60{
61 struct {
62 u32 cmd;
63 SVGAFifoCmdDefineAlphaCursor cursor;
64 } *cmd;
65 u32 image_size = width * height * 4;
66 u32 cmd_size = sizeof(*cmd) + image_size;
67
68 if (!image)
69 return -EINVAL;
70
71 cmd = VMW_FIFO_RESERVE(dev_priv, cmd_size);
72 if (unlikely(cmd == NULL))
73 return -ENOMEM;
74
75 memset(cmd, 0, sizeof(*cmd));
76
77 memcpy(&cmd[1], image, image_size);
78
79 cmd->cmd = SVGA_CMD_DEFINE_ALPHA_CURSOR;
80 cmd->cursor.id = 0;
81 cmd->cursor.width = width;
82 cmd->cursor.height = height;
83 cmd->cursor.hotspotX = hotspotX;
84 cmd->cursor.hotspotY = hotspotY;
85
86 vmw_fifo_commit_flush(dev_priv, cmd_size);
87
88 return 0;
89}
90
91static int vmw_cursor_update_bo(struct vmw_private *dev_priv,
92 struct vmw_buffer_object *bo,
93 u32 width, u32 height,
94 u32 hotspotX, u32 hotspotY)
95{
96 struct ttm_bo_kmap_obj map;
97 unsigned long kmap_offset;
98 unsigned long kmap_num;
99 void *virtual;
100 bool dummy;
101 int ret;
102
103 kmap_offset = 0;
104 kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
105
106 ret = ttm_bo_reserve(&bo->base, true, false, NULL);
107 if (unlikely(ret != 0)) {
108 DRM_ERROR("reserve failed\n");
109 return -EINVAL;
110 }
111
112 ret = ttm_bo_kmap(&bo->base, kmap_offset, kmap_num, &map);
113 if (unlikely(ret != 0))
114 goto err_unreserve;
115
116 virtual = ttm_kmap_obj_virtual(&map, &dummy);
117 ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
118 hotspotX, hotspotY);
119
120 ttm_bo_kunmap(&map);
121err_unreserve:
122 ttm_bo_unreserve(&bo->base);
123
124 return ret;
125}
126
127
128static void vmw_cursor_update_position(struct vmw_private *dev_priv,
129 bool show, int x, int y)
130{
131 u32 *fifo_mem = dev_priv->mmio_virt;
132 uint32_t count;
133
134 spin_lock(&dev_priv->cursor_lock);
135 vmw_mmio_write(show ? 1 : 0, fifo_mem + SVGA_FIFO_CURSOR_ON);
136 vmw_mmio_write(x, fifo_mem + SVGA_FIFO_CURSOR_X);
137 vmw_mmio_write(y, fifo_mem + SVGA_FIFO_CURSOR_Y);
138 count = vmw_mmio_read(fifo_mem + SVGA_FIFO_CURSOR_COUNT);
139 vmw_mmio_write(++count, fifo_mem + SVGA_FIFO_CURSOR_COUNT);
140 spin_unlock(&dev_priv->cursor_lock);
141}
142
143
144void vmw_kms_cursor_snoop(struct vmw_surface *srf,
145 struct ttm_object_file *tfile,
146 struct ttm_buffer_object *bo,
147 SVGA3dCmdHeader *header)
148{
149 struct ttm_bo_kmap_obj map;
150 unsigned long kmap_offset;
151 unsigned long kmap_num;
152 SVGA3dCopyBox *box;
153 unsigned box_count;
154 void *virtual;
155 bool dummy;
156 struct vmw_dma_cmd {
157 SVGA3dCmdHeader header;
158 SVGA3dCmdSurfaceDMA dma;
159 } *cmd;
160 int i, ret;
161
162 cmd = container_of(header, struct vmw_dma_cmd, header);
163
164 /* No snooper installed */
165 if (!srf->snooper.image)
166 return;
167
168 if (cmd->dma.host.face != 0 || cmd->dma.host.mipmap != 0) {
169 DRM_ERROR("face and mipmap for cursors should never != 0\n");
170 return;
171 }
172
173 if (cmd->header.size < 64) {
174 DRM_ERROR("at least one full copy box must be given\n");
175 return;
176 }
177
178 box = (SVGA3dCopyBox *)&cmd[1];
179 box_count = (cmd->header.size - sizeof(SVGA3dCmdSurfaceDMA)) /
180 sizeof(SVGA3dCopyBox);
181
182 if (cmd->dma.guest.ptr.offset % PAGE_SIZE ||
183 box->x != 0 || box->y != 0 || box->z != 0 ||
184 box->srcx != 0 || box->srcy != 0 || box->srcz != 0 ||
185 box->d != 1 || box_count != 1) {
186 /* TODO handle none page aligned offsets */
187 /* TODO handle more dst & src != 0 */
188 /* TODO handle more then one copy */
189 DRM_ERROR("Can't snoop dma request for cursor!\n");
190 DRM_ERROR("(%u, %u, %u) (%u, %u, %u) (%ux%ux%u) %u %u\n",
191 box->srcx, box->srcy, box->srcz,
192 box->x, box->y, box->z,
193 box->w, box->h, box->d, box_count,
194 cmd->dma.guest.ptr.offset);
195 return;
196 }
197
198 kmap_offset = cmd->dma.guest.ptr.offset >> PAGE_SHIFT;
199 kmap_num = (64*64*4) >> PAGE_SHIFT;
200
201 ret = ttm_bo_reserve(bo, true, false, NULL);
202 if (unlikely(ret != 0)) {
203 DRM_ERROR("reserve failed\n");
204 return;
205 }
206
207 ret = ttm_bo_kmap(bo, kmap_offset, kmap_num, &map);
208 if (unlikely(ret != 0))
209 goto err_unreserve;
210
211 virtual = ttm_kmap_obj_virtual(&map, &dummy);
212
213 if (box->w == 64 && cmd->dma.guest.pitch == 64*4) {
214 memcpy(srf->snooper.image, virtual, 64*64*4);
215 } else {
216 /* Image is unsigned pointer. */
217 for (i = 0; i < box->h; i++)
218 memcpy(srf->snooper.image + i * 64,
219 virtual + i * cmd->dma.guest.pitch,
220 box->w * 4);
221 }
222
223 srf->snooper.age++;
224
225 ttm_bo_kunmap(&map);
226err_unreserve:
227 ttm_bo_unreserve(bo);
228}
229
230/**
231 * vmw_kms_legacy_hotspot_clear - Clear legacy hotspots
232 *
233 * @dev_priv: Pointer to the device private struct.
234 *
235 * Clears all legacy hotspots.
236 */
237void vmw_kms_legacy_hotspot_clear(struct vmw_private *dev_priv)
238{
239 struct drm_device *dev = dev_priv->dev;
240 struct vmw_display_unit *du;
241 struct drm_crtc *crtc;
242
243 drm_modeset_lock_all(dev);
244 drm_for_each_crtc(crtc, dev) {
245 du = vmw_crtc_to_du(crtc);
246
247 du->hotspot_x = 0;
248 du->hotspot_y = 0;
249 }
250 drm_modeset_unlock_all(dev);
251}
252
253void vmw_kms_cursor_post_execbuf(struct vmw_private *dev_priv)
254{
255 struct drm_device *dev = dev_priv->dev;
256 struct vmw_display_unit *du;
257 struct drm_crtc *crtc;
258
259 mutex_lock(&dev->mode_config.mutex);
260
261 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
262 du = vmw_crtc_to_du(crtc);
263 if (!du->cursor_surface ||
264 du->cursor_age == du->cursor_surface->snooper.age)
265 continue;
266
267 du->cursor_age = du->cursor_surface->snooper.age;
268 vmw_cursor_update_image(dev_priv,
269 du->cursor_surface->snooper.image,
270 64, 64,
271 du->hotspot_x + du->core_hotspot_x,
272 du->hotspot_y + du->core_hotspot_y);
273 }
274
275 mutex_unlock(&dev->mode_config.mutex);
276}
277
278
279void vmw_du_cursor_plane_destroy(struct drm_plane *plane)
280{
281 vmw_cursor_update_position(plane->dev->dev_private, false, 0, 0);
282
283 drm_plane_cleanup(plane);
284}
285
286
287void vmw_du_primary_plane_destroy(struct drm_plane *plane)
288{
289 drm_plane_cleanup(plane);
290
291 /* Planes are static in our case so we don't free it */
292}
293
294
295/**
296 * vmw_du_vps_unpin_surf - unpins resource associated with a framebuffer surface
297 *
298 * @vps: plane state associated with the display surface
299 * @unreference: true if we also want to unreference the display.
300 */
301void vmw_du_plane_unpin_surf(struct vmw_plane_state *vps,
302 bool unreference)
303{
304 if (vps->surf) {
305 if (vps->pinned) {
306 vmw_resource_unpin(&vps->surf->res);
307 vps->pinned--;
308 }
309
310 if (unreference) {
311 if (vps->pinned)
312 DRM_ERROR("Surface still pinned\n");
313 vmw_surface_unreference(&vps->surf);
314 }
315 }
316}
317
318
319/**
320 * vmw_du_plane_cleanup_fb - Unpins the cursor
321 *
322 * @plane: display plane
323 * @old_state: Contains the FB to clean up
324 *
325 * Unpins the framebuffer surface
326 *
327 * Returns 0 on success
328 */
329void
330vmw_du_plane_cleanup_fb(struct drm_plane *plane,
331 struct drm_plane_state *old_state)
332{
333 struct vmw_plane_state *vps = vmw_plane_state_to_vps(old_state);
334
335 vmw_du_plane_unpin_surf(vps, false);
336}
337
338
339/**
340 * vmw_du_cursor_plane_prepare_fb - Readies the cursor by referencing it
341 *
342 * @plane: display plane
343 * @new_state: info on the new plane state, including the FB
344 *
345 * Returns 0 on success
346 */
347int
348vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
349 struct drm_plane_state *new_state)
350{
351 struct drm_framebuffer *fb = new_state->fb;
352 struct vmw_plane_state *vps = vmw_plane_state_to_vps(new_state);
353
354
355 if (vps->surf)
356 vmw_surface_unreference(&vps->surf);
357
358 if (vps->bo)
359 vmw_bo_unreference(&vps->bo);
360
361 if (fb) {
362 if (vmw_framebuffer_to_vfb(fb)->bo) {
363 vps->bo = vmw_framebuffer_to_vfbd(fb)->buffer;
364 vmw_bo_reference(vps->bo);
365 } else {
366 vps->surf = vmw_framebuffer_to_vfbs(fb)->surface;
367 vmw_surface_reference(vps->surf);
368 }
369 }
370
371 return 0;
372}
373
374
375void
376vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
377 struct drm_plane_state *old_state)
378{
379 struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc;
380 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
381 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
382 struct vmw_plane_state *vps = vmw_plane_state_to_vps(plane->state);
383 s32 hotspot_x, hotspot_y;
384 int ret = 0;
385
386
387 hotspot_x = du->hotspot_x;
388 hotspot_y = du->hotspot_y;
389
390 if (plane->state->fb) {
391 hotspot_x += plane->state->fb->hot_x;
392 hotspot_y += plane->state->fb->hot_y;
393 }
394
395 du->cursor_surface = vps->surf;
396 du->cursor_bo = vps->bo;
397
398 if (vps->surf) {
399 du->cursor_age = du->cursor_surface->snooper.age;
400
401 ret = vmw_cursor_update_image(dev_priv,
402 vps->surf->snooper.image,
403 64, 64, hotspot_x,
404 hotspot_y);
405 } else if (vps->bo) {
406 ret = vmw_cursor_update_bo(dev_priv, vps->bo,
407 plane->state->crtc_w,
408 plane->state->crtc_h,
409 hotspot_x, hotspot_y);
410 } else {
411 vmw_cursor_update_position(dev_priv, false, 0, 0);
412 return;
413 }
414
415 if (!ret) {
416 du->cursor_x = plane->state->crtc_x + du->set_gui_x;
417 du->cursor_y = plane->state->crtc_y + du->set_gui_y;
418
419 vmw_cursor_update_position(dev_priv, true,
420 du->cursor_x + hotspot_x,
421 du->cursor_y + hotspot_y);
422
423 du->core_hotspot_x = hotspot_x - du->hotspot_x;
424 du->core_hotspot_y = hotspot_y - du->hotspot_y;
425 } else {
426 DRM_ERROR("Failed to update cursor image\n");
427 }
428}
429
430
431/**
432 * vmw_du_primary_plane_atomic_check - check if the new state is okay
433 *
434 * @plane: display plane
435 * @state: info on the new plane state, including the FB
436 *
437 * Check if the new state is settable given the current state. Other
438 * than what the atomic helper checks, we care about crtc fitting
439 * the FB and maintaining one active framebuffer.
440 *
441 * Returns 0 on success
442 */
443int vmw_du_primary_plane_atomic_check(struct drm_plane *plane,
444 struct drm_plane_state *state)
445{
446 struct drm_crtc_state *crtc_state = NULL;
447 struct drm_framebuffer *new_fb = state->fb;
448 int ret;
449
450 if (state->crtc)
451 crtc_state = drm_atomic_get_new_crtc_state(state->state, state->crtc);
452
453 ret = drm_atomic_helper_check_plane_state(state, crtc_state,
454 DRM_PLANE_HELPER_NO_SCALING,
455 DRM_PLANE_HELPER_NO_SCALING,
456 false, true);
457
458 if (!ret && new_fb) {
459 struct drm_crtc *crtc = state->crtc;
460 struct vmw_connector_state *vcs;
461 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
462
463 vcs = vmw_connector_state_to_vcs(du->connector.state);
464 }
465
466
467 return ret;
468}
469
470
471/**
472 * vmw_du_cursor_plane_atomic_check - check if the new state is okay
473 *
474 * @plane: cursor plane
475 * @state: info on the new plane state
476 *
477 * This is a chance to fail if the new cursor state does not fit
478 * our requirements.
479 *
480 * Returns 0 on success
481 */
482int vmw_du_cursor_plane_atomic_check(struct drm_plane *plane,
483 struct drm_plane_state *new_state)
484{
485 int ret = 0;
486 struct drm_crtc_state *crtc_state = NULL;
487 struct vmw_surface *surface = NULL;
488 struct drm_framebuffer *fb = new_state->fb;
489
490 if (new_state->crtc)
491 crtc_state = drm_atomic_get_new_crtc_state(new_state->state,
492 new_state->crtc);
493
494 ret = drm_atomic_helper_check_plane_state(new_state, crtc_state,
495 DRM_PLANE_HELPER_NO_SCALING,
496 DRM_PLANE_HELPER_NO_SCALING,
497 true, true);
498 if (ret)
499 return ret;
500
501 /* Turning off */
502 if (!fb)
503 return 0;
504
505 /* A lot of the code assumes this */
506 if (new_state->crtc_w != 64 || new_state->crtc_h != 64) {
507 DRM_ERROR("Invalid cursor dimensions (%d, %d)\n",
508 new_state->crtc_w, new_state->crtc_h);
509 ret = -EINVAL;
510 }
511
512 if (!vmw_framebuffer_to_vfb(fb)->bo)
513 surface = vmw_framebuffer_to_vfbs(fb)->surface;
514
515 if (surface && !surface->snooper.image) {
516 DRM_ERROR("surface not suitable for cursor\n");
517 ret = -EINVAL;
518 }
519
520 return ret;
521}
522
523
524int vmw_du_crtc_atomic_check(struct drm_crtc *crtc,
525 struct drm_crtc_state *new_state)
526{
527 struct vmw_display_unit *du = vmw_crtc_to_du(new_state->crtc);
528 int connector_mask = drm_connector_mask(&du->connector);
529 bool has_primary = new_state->plane_mask &
530 drm_plane_mask(crtc->primary);
531
532 /* We always want to have an active plane with an active CRTC */
533 if (has_primary != new_state->enable)
534 return -EINVAL;
535
536
537 if (new_state->connector_mask != connector_mask &&
538 new_state->connector_mask != 0) {
539 DRM_ERROR("Invalid connectors configuration\n");
540 return -EINVAL;
541 }
542
543 /*
544 * Our virtual device does not have a dot clock, so use the logical
545 * clock value as the dot clock.
546 */
547 if (new_state->mode.crtc_clock == 0)
548 new_state->adjusted_mode.crtc_clock = new_state->mode.clock;
549
550 return 0;
551}
552
553
554void vmw_du_crtc_atomic_begin(struct drm_crtc *crtc,
555 struct drm_crtc_state *old_crtc_state)
556{
557}
558
559
560void vmw_du_crtc_atomic_flush(struct drm_crtc *crtc,
561 struct drm_crtc_state *old_crtc_state)
562{
563 struct drm_pending_vblank_event *event = crtc->state->event;
564
565 if (event) {
566 crtc->state->event = NULL;
567
568 spin_lock_irq(&crtc->dev->event_lock);
569 drm_crtc_send_vblank_event(crtc, event);
570 spin_unlock_irq(&crtc->dev->event_lock);
571 }
572}
573
574
575/**
576 * vmw_du_crtc_duplicate_state - duplicate crtc state
577 * @crtc: DRM crtc
578 *
579 * Allocates and returns a copy of the crtc state (both common and
580 * vmw-specific) for the specified crtc.
581 *
582 * Returns: The newly allocated crtc state, or NULL on failure.
583 */
584struct drm_crtc_state *
585vmw_du_crtc_duplicate_state(struct drm_crtc *crtc)
586{
587 struct drm_crtc_state *state;
588 struct vmw_crtc_state *vcs;
589
590 if (WARN_ON(!crtc->state))
591 return NULL;
592
593 vcs = kmemdup(crtc->state, sizeof(*vcs), GFP_KERNEL);
594
595 if (!vcs)
596 return NULL;
597
598 state = &vcs->base;
599
600 __drm_atomic_helper_crtc_duplicate_state(crtc, state);
601
602 return state;
603}
604
605
606/**
607 * vmw_du_crtc_reset - creates a blank vmw crtc state
608 * @crtc: DRM crtc
609 *
610 * Resets the atomic state for @crtc by freeing the state pointer (which
611 * might be NULL, e.g. at driver load time) and allocating a new empty state
612 * object.
613 */
614void vmw_du_crtc_reset(struct drm_crtc *crtc)
615{
616 struct vmw_crtc_state *vcs;
617
618
619 if (crtc->state) {
620 __drm_atomic_helper_crtc_destroy_state(crtc->state);
621
622 kfree(vmw_crtc_state_to_vcs(crtc->state));
623 }
624
625 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
626
627 if (!vcs) {
628 DRM_ERROR("Cannot allocate vmw_crtc_state\n");
629 return;
630 }
631
632 __drm_atomic_helper_crtc_reset(crtc, &vcs->base);
633}
634
635
636/**
637 * vmw_du_crtc_destroy_state - destroy crtc state
638 * @crtc: DRM crtc
639 * @state: state object to destroy
640 *
641 * Destroys the crtc state (both common and vmw-specific) for the
642 * specified plane.
643 */
644void
645vmw_du_crtc_destroy_state(struct drm_crtc *crtc,
646 struct drm_crtc_state *state)
647{
648 drm_atomic_helper_crtc_destroy_state(crtc, state);
649}
650
651
652/**
653 * vmw_du_plane_duplicate_state - duplicate plane state
654 * @plane: drm plane
655 *
656 * Allocates and returns a copy of the plane state (both common and
657 * vmw-specific) for the specified plane.
658 *
659 * Returns: The newly allocated plane state, or NULL on failure.
660 */
661struct drm_plane_state *
662vmw_du_plane_duplicate_state(struct drm_plane *plane)
663{
664 struct drm_plane_state *state;
665 struct vmw_plane_state *vps;
666
667 vps = kmemdup(plane->state, sizeof(*vps), GFP_KERNEL);
668
669 if (!vps)
670 return NULL;
671
672 vps->pinned = 0;
673 vps->cpp = 0;
674
675 /* Each ref counted resource needs to be acquired again */
676 if (vps->surf)
677 (void) vmw_surface_reference(vps->surf);
678
679 if (vps->bo)
680 (void) vmw_bo_reference(vps->bo);
681
682 state = &vps->base;
683
684 __drm_atomic_helper_plane_duplicate_state(plane, state);
685
686 return state;
687}
688
689
690/**
691 * vmw_du_plane_reset - creates a blank vmw plane state
692 * @plane: drm plane
693 *
694 * Resets the atomic state for @plane by freeing the state pointer (which might
695 * be NULL, e.g. at driver load time) and allocating a new empty state object.
696 */
697void vmw_du_plane_reset(struct drm_plane *plane)
698{
699 struct vmw_plane_state *vps;
700
701
702 if (plane->state)
703 vmw_du_plane_destroy_state(plane, plane->state);
704
705 vps = kzalloc(sizeof(*vps), GFP_KERNEL);
706
707 if (!vps) {
708 DRM_ERROR("Cannot allocate vmw_plane_state\n");
709 return;
710 }
711
712 __drm_atomic_helper_plane_reset(plane, &vps->base);
713}
714
715
716/**
717 * vmw_du_plane_destroy_state - destroy plane state
718 * @plane: DRM plane
719 * @state: state object to destroy
720 *
721 * Destroys the plane state (both common and vmw-specific) for the
722 * specified plane.
723 */
724void
725vmw_du_plane_destroy_state(struct drm_plane *plane,
726 struct drm_plane_state *state)
727{
728 struct vmw_plane_state *vps = vmw_plane_state_to_vps(state);
729
730
731 /* Should have been freed by cleanup_fb */
732 if (vps->surf)
733 vmw_surface_unreference(&vps->surf);
734
735 if (vps->bo)
736 vmw_bo_unreference(&vps->bo);
737
738 drm_atomic_helper_plane_destroy_state(plane, state);
739}
740
741
742/**
743 * vmw_du_connector_duplicate_state - duplicate connector state
744 * @connector: DRM connector
745 *
746 * Allocates and returns a copy of the connector state (both common and
747 * vmw-specific) for the specified connector.
748 *
749 * Returns: The newly allocated connector state, or NULL on failure.
750 */
751struct drm_connector_state *
752vmw_du_connector_duplicate_state(struct drm_connector *connector)
753{
754 struct drm_connector_state *state;
755 struct vmw_connector_state *vcs;
756
757 if (WARN_ON(!connector->state))
758 return NULL;
759
760 vcs = kmemdup(connector->state, sizeof(*vcs), GFP_KERNEL);
761
762 if (!vcs)
763 return NULL;
764
765 state = &vcs->base;
766
767 __drm_atomic_helper_connector_duplicate_state(connector, state);
768
769 return state;
770}
771
772
773/**
774 * vmw_du_connector_reset - creates a blank vmw connector state
775 * @connector: DRM connector
776 *
777 * Resets the atomic state for @connector by freeing the state pointer (which
778 * might be NULL, e.g. at driver load time) and allocating a new empty state
779 * object.
780 */
781void vmw_du_connector_reset(struct drm_connector *connector)
782{
783 struct vmw_connector_state *vcs;
784
785
786 if (connector->state) {
787 __drm_atomic_helper_connector_destroy_state(connector->state);
788
789 kfree(vmw_connector_state_to_vcs(connector->state));
790 }
791
792 vcs = kzalloc(sizeof(*vcs), GFP_KERNEL);
793
794 if (!vcs) {
795 DRM_ERROR("Cannot allocate vmw_connector_state\n");
796 return;
797 }
798
799 __drm_atomic_helper_connector_reset(connector, &vcs->base);
800}
801
802
803/**
804 * vmw_du_connector_destroy_state - destroy connector state
805 * @connector: DRM connector
806 * @state: state object to destroy
807 *
808 * Destroys the connector state (both common and vmw-specific) for the
809 * specified plane.
810 */
811void
812vmw_du_connector_destroy_state(struct drm_connector *connector,
813 struct drm_connector_state *state)
814{
815 drm_atomic_helper_connector_destroy_state(connector, state);
816}
817/*
818 * Generic framebuffer code
819 */
820
821/*
822 * Surface framebuffer code
823 */
824
825static void vmw_framebuffer_surface_destroy(struct drm_framebuffer *framebuffer)
826{
827 struct vmw_framebuffer_surface *vfbs =
828 vmw_framebuffer_to_vfbs(framebuffer);
829
830 drm_framebuffer_cleanup(framebuffer);
831 vmw_surface_unreference(&vfbs->surface);
832 if (vfbs->base.user_obj)
833 ttm_base_object_unref(&vfbs->base.user_obj);
834
835 kfree(vfbs);
836}
837
838/**
839 * vmw_kms_readback - Perform a readback from the screen system to
840 * a buffer-object backed framebuffer.
841 *
842 * @dev_priv: Pointer to the device private structure.
843 * @file_priv: Pointer to a struct drm_file identifying the caller.
844 * Must be set to NULL if @user_fence_rep is NULL.
845 * @vfb: Pointer to the buffer-object backed framebuffer.
846 * @user_fence_rep: User-space provided structure for fence information.
847 * Must be set to non-NULL if @file_priv is non-NULL.
848 * @vclips: Array of clip rects.
849 * @num_clips: Number of clip rects in @vclips.
850 *
851 * Returns 0 on success, negative error code on failure. -ERESTARTSYS if
852 * interrupted.
853 */
854int vmw_kms_readback(struct vmw_private *dev_priv,
855 struct drm_file *file_priv,
856 struct vmw_framebuffer *vfb,
857 struct drm_vmw_fence_rep __user *user_fence_rep,
858 struct drm_vmw_rect *vclips,
859 uint32_t num_clips)
860{
861 switch (dev_priv->active_display_unit) {
862 case vmw_du_screen_object:
863 return vmw_kms_sou_readback(dev_priv, file_priv, vfb,
864 user_fence_rep, vclips, num_clips,
865 NULL);
866 case vmw_du_screen_target:
867 return vmw_kms_stdu_dma(dev_priv, file_priv, vfb,
868 user_fence_rep, NULL, vclips, num_clips,
869 1, false, true, NULL);
870 default:
871 WARN_ONCE(true,
872 "Readback called with invalid display system.\n");
873}
874
875 return -ENOSYS;
876}
877
878
879static const struct drm_framebuffer_funcs vmw_framebuffer_surface_funcs = {
880 .destroy = vmw_framebuffer_surface_destroy,
881 .dirty = drm_atomic_helper_dirtyfb,
882};
883
884static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
885 struct vmw_surface *surface,
886 struct vmw_framebuffer **out,
887 const struct drm_mode_fb_cmd2
888 *mode_cmd,
889 bool is_bo_proxy)
890
891{
892 struct drm_device *dev = dev_priv->dev;
893 struct vmw_framebuffer_surface *vfbs;
894 enum SVGA3dSurfaceFormat format;
895 int ret;
896 struct drm_format_name_buf format_name;
897
898 /* 3D is only supported on HWv8 and newer hosts */
899 if (dev_priv->active_display_unit == vmw_du_legacy)
900 return -ENOSYS;
901
902 /*
903 * Sanity checks.
904 */
905
906 /* Surface must be marked as a scanout. */
907 if (unlikely(!surface->metadata.scanout))
908 return -EINVAL;
909
910 if (unlikely(surface->metadata.mip_levels[0] != 1 ||
911 surface->metadata.num_sizes != 1 ||
912 surface->metadata.base_size.width < mode_cmd->width ||
913 surface->metadata.base_size.height < mode_cmd->height ||
914 surface->metadata.base_size.depth != 1)) {
915 DRM_ERROR("Incompatible surface dimensions "
916 "for requested mode.\n");
917 return -EINVAL;
918 }
919
920 switch (mode_cmd->pixel_format) {
921 case DRM_FORMAT_ARGB8888:
922 format = SVGA3D_A8R8G8B8;
923 break;
924 case DRM_FORMAT_XRGB8888:
925 format = SVGA3D_X8R8G8B8;
926 break;
927 case DRM_FORMAT_RGB565:
928 format = SVGA3D_R5G6B5;
929 break;
930 case DRM_FORMAT_XRGB1555:
931 format = SVGA3D_A1R5G5B5;
932 break;
933 default:
934 DRM_ERROR("Invalid pixel format: %s\n",
935 drm_get_format_name(mode_cmd->pixel_format, &format_name));
936 return -EINVAL;
937 }
938
939 /*
940 * For DX, surface format validation is done when surface->scanout
941 * is set.
942 */
943 if (!has_sm4_context(dev_priv) && format != surface->metadata.format) {
944 DRM_ERROR("Invalid surface format for requested mode.\n");
945 return -EINVAL;
946 }
947
948 vfbs = kzalloc(sizeof(*vfbs), GFP_KERNEL);
949 if (!vfbs) {
950 ret = -ENOMEM;
951 goto out_err1;
952 }
953
954 drm_helper_mode_fill_fb_struct(dev, &vfbs->base.base, mode_cmd);
955 vfbs->surface = vmw_surface_reference(surface);
956 vfbs->base.user_handle = mode_cmd->handles[0];
957 vfbs->is_bo_proxy = is_bo_proxy;
958
959 *out = &vfbs->base;
960
961 ret = drm_framebuffer_init(dev, &vfbs->base.base,
962 &vmw_framebuffer_surface_funcs);
963 if (ret)
964 goto out_err2;
965
966 return 0;
967
968out_err2:
969 vmw_surface_unreference(&surface);
970 kfree(vfbs);
971out_err1:
972 return ret;
973}
974
975/*
976 * Buffer-object framebuffer code
977 */
978
979static void vmw_framebuffer_bo_destroy(struct drm_framebuffer *framebuffer)
980{
981 struct vmw_framebuffer_bo *vfbd =
982 vmw_framebuffer_to_vfbd(framebuffer);
983
984 drm_framebuffer_cleanup(framebuffer);
985 vmw_bo_unreference(&vfbd->buffer);
986 if (vfbd->base.user_obj)
987 ttm_base_object_unref(&vfbd->base.user_obj);
988
989 kfree(vfbd);
990}
991
992static int vmw_framebuffer_bo_dirty(struct drm_framebuffer *framebuffer,
993 struct drm_file *file_priv,
994 unsigned int flags, unsigned int color,
995 struct drm_clip_rect *clips,
996 unsigned int num_clips)
997{
998 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
999 struct vmw_framebuffer_bo *vfbd =
1000 vmw_framebuffer_to_vfbd(framebuffer);
1001 struct drm_clip_rect norect;
1002 int ret, increment = 1;
1003
1004 drm_modeset_lock_all(dev_priv->dev);
1005
1006 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1007 if (unlikely(ret != 0)) {
1008 drm_modeset_unlock_all(dev_priv->dev);
1009 return ret;
1010 }
1011
1012 if (!num_clips) {
1013 num_clips = 1;
1014 clips = &norect;
1015 norect.x1 = norect.y1 = 0;
1016 norect.x2 = framebuffer->width;
1017 norect.y2 = framebuffer->height;
1018 } else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
1019 num_clips /= 2;
1020 increment = 2;
1021 }
1022
1023 switch (dev_priv->active_display_unit) {
1024 case vmw_du_legacy:
1025 ret = vmw_kms_ldu_do_bo_dirty(dev_priv, &vfbd->base, 0, 0,
1026 clips, num_clips, increment);
1027 break;
1028 default:
1029 ret = -EINVAL;
1030 WARN_ONCE(true, "Dirty called with invalid display system.\n");
1031 break;
1032 }
1033
1034 vmw_fifo_flush(dev_priv, false);
1035 ttm_read_unlock(&dev_priv->reservation_sem);
1036
1037 drm_modeset_unlock_all(dev_priv->dev);
1038
1039 return ret;
1040}
1041
1042static int vmw_framebuffer_bo_dirty_ext(struct drm_framebuffer *framebuffer,
1043 struct drm_file *file_priv,
1044 unsigned int flags, unsigned int color,
1045 struct drm_clip_rect *clips,
1046 unsigned int num_clips)
1047{
1048 struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
1049
1050 if (dev_priv->active_display_unit == vmw_du_legacy)
1051 return vmw_framebuffer_bo_dirty(framebuffer, file_priv, flags,
1052 color, clips, num_clips);
1053
1054 return drm_atomic_helper_dirtyfb(framebuffer, file_priv, flags, color,
1055 clips, num_clips);
1056}
1057
1058static const struct drm_framebuffer_funcs vmw_framebuffer_bo_funcs = {
1059 .destroy = vmw_framebuffer_bo_destroy,
1060 .dirty = vmw_framebuffer_bo_dirty_ext,
1061};
1062
1063/**
1064 * Pin the bofer in a location suitable for access by the
1065 * display system.
1066 */
1067static int vmw_framebuffer_pin(struct vmw_framebuffer *vfb)
1068{
1069 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1070 struct vmw_buffer_object *buf;
1071 struct ttm_placement *placement;
1072 int ret;
1073
1074 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1075 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1076
1077 if (!buf)
1078 return 0;
1079
1080 switch (dev_priv->active_display_unit) {
1081 case vmw_du_legacy:
1082 vmw_overlay_pause_all(dev_priv);
1083 ret = vmw_bo_pin_in_start_of_vram(dev_priv, buf, false);
1084 vmw_overlay_resume_all(dev_priv);
1085 break;
1086 case vmw_du_screen_object:
1087 case vmw_du_screen_target:
1088 if (vfb->bo) {
1089 if (dev_priv->capabilities & SVGA_CAP_3D) {
1090 /*
1091 * Use surface DMA to get content to
1092 * sreen target surface.
1093 */
1094 placement = &vmw_vram_gmr_placement;
1095 } else {
1096 /* Use CPU blit. */
1097 placement = &vmw_sys_placement;
1098 }
1099 } else {
1100 /* Use surface / image update */
1101 placement = &vmw_mob_placement;
1102 }
1103
1104 return vmw_bo_pin_in_placement(dev_priv, buf, placement, false);
1105 default:
1106 return -EINVAL;
1107 }
1108
1109 return ret;
1110}
1111
1112static int vmw_framebuffer_unpin(struct vmw_framebuffer *vfb)
1113{
1114 struct vmw_private *dev_priv = vmw_priv(vfb->base.dev);
1115 struct vmw_buffer_object *buf;
1116
1117 buf = vfb->bo ? vmw_framebuffer_to_vfbd(&vfb->base)->buffer :
1118 vmw_framebuffer_to_vfbs(&vfb->base)->surface->res.backup;
1119
1120 if (WARN_ON(!buf))
1121 return 0;
1122
1123 return vmw_bo_unpin(dev_priv, buf, false);
1124}
1125
1126/**
1127 * vmw_create_bo_proxy - create a proxy surface for the buffer object
1128 *
1129 * @dev: DRM device
1130 * @mode_cmd: parameters for the new surface
1131 * @bo_mob: MOB backing the buffer object
1132 * @srf_out: newly created surface
1133 *
1134 * When the content FB is a buffer object, we create a surface as a proxy to the
1135 * same buffer. This way we can do a surface copy rather than a surface DMA.
1136 * This is a more efficient approach
1137 *
1138 * RETURNS:
1139 * 0 on success, error code otherwise
1140 */
1141static int vmw_create_bo_proxy(struct drm_device *dev,
1142 const struct drm_mode_fb_cmd2 *mode_cmd,
1143 struct vmw_buffer_object *bo_mob,
1144 struct vmw_surface **srf_out)
1145{
1146 struct vmw_surface_metadata metadata = {0};
1147 uint32_t format;
1148 struct vmw_resource *res;
1149 unsigned int bytes_pp;
1150 struct drm_format_name_buf format_name;
1151 int ret;
1152
1153 switch (mode_cmd->pixel_format) {
1154 case DRM_FORMAT_ARGB8888:
1155 case DRM_FORMAT_XRGB8888:
1156 format = SVGA3D_X8R8G8B8;
1157 bytes_pp = 4;
1158 break;
1159
1160 case DRM_FORMAT_RGB565:
1161 case DRM_FORMAT_XRGB1555:
1162 format = SVGA3D_R5G6B5;
1163 bytes_pp = 2;
1164 break;
1165
1166 case 8:
1167 format = SVGA3D_P8;
1168 bytes_pp = 1;
1169 break;
1170
1171 default:
1172 DRM_ERROR("Invalid framebuffer format %s\n",
1173 drm_get_format_name(mode_cmd->pixel_format, &format_name));
1174 return -EINVAL;
1175 }
1176
1177 metadata.format = format;
1178 metadata.mip_levels[0] = 1;
1179 metadata.num_sizes = 1;
1180 metadata.base_size.width = mode_cmd->pitches[0] / bytes_pp;
1181 metadata.base_size.height = mode_cmd->height;
1182 metadata.base_size.depth = 1;
1183 metadata.scanout = true;
1184
1185 ret = vmw_gb_surface_define(vmw_priv(dev), 0, &metadata, srf_out);
1186 if (ret) {
1187 DRM_ERROR("Failed to allocate proxy content buffer\n");
1188 return ret;
1189 }
1190
1191 res = &(*srf_out)->res;
1192
1193 /* Reserve and switch the backing mob. */
1194 mutex_lock(&res->dev_priv->cmdbuf_mutex);
1195 (void) vmw_resource_reserve(res, false, true);
1196 vmw_bo_unreference(&res->backup);
1197 res->backup = vmw_bo_reference(bo_mob);
1198 res->backup_offset = 0;
1199 vmw_resource_unreserve(res, false, false, false, NULL, 0);
1200 mutex_unlock(&res->dev_priv->cmdbuf_mutex);
1201
1202 return 0;
1203}
1204
1205
1206
1207static int vmw_kms_new_framebuffer_bo(struct vmw_private *dev_priv,
1208 struct vmw_buffer_object *bo,
1209 struct vmw_framebuffer **out,
1210 const struct drm_mode_fb_cmd2
1211 *mode_cmd)
1212
1213{
1214 struct drm_device *dev = dev_priv->dev;
1215 struct vmw_framebuffer_bo *vfbd;
1216 unsigned int requested_size;
1217 struct drm_format_name_buf format_name;
1218 int ret;
1219
1220 requested_size = mode_cmd->height * mode_cmd->pitches[0];
1221 if (unlikely(requested_size > bo->base.num_pages * PAGE_SIZE)) {
1222 DRM_ERROR("Screen buffer object size is too small "
1223 "for requested mode.\n");
1224 return -EINVAL;
1225 }
1226
1227 /* Limited framebuffer color depth support for screen objects */
1228 if (dev_priv->active_display_unit == vmw_du_screen_object) {
1229 switch (mode_cmd->pixel_format) {
1230 case DRM_FORMAT_XRGB8888:
1231 case DRM_FORMAT_ARGB8888:
1232 break;
1233 case DRM_FORMAT_XRGB1555:
1234 case DRM_FORMAT_RGB565:
1235 break;
1236 default:
1237 DRM_ERROR("Invalid pixel format: %s\n",
1238 drm_get_format_name(mode_cmd->pixel_format, &format_name));
1239 return -EINVAL;
1240 }
1241 }
1242
1243 vfbd = kzalloc(sizeof(*vfbd), GFP_KERNEL);
1244 if (!vfbd) {
1245 ret = -ENOMEM;
1246 goto out_err1;
1247 }
1248
1249 drm_helper_mode_fill_fb_struct(dev, &vfbd->base.base, mode_cmd);
1250 vfbd->base.bo = true;
1251 vfbd->buffer = vmw_bo_reference(bo);
1252 vfbd->base.user_handle = mode_cmd->handles[0];
1253 *out = &vfbd->base;
1254
1255 ret = drm_framebuffer_init(dev, &vfbd->base.base,
1256 &vmw_framebuffer_bo_funcs);
1257 if (ret)
1258 goto out_err2;
1259
1260 return 0;
1261
1262out_err2:
1263 vmw_bo_unreference(&bo);
1264 kfree(vfbd);
1265out_err1:
1266 return ret;
1267}
1268
1269
1270/**
1271 * vmw_kms_srf_ok - check if a surface can be created
1272 *
1273 * @width: requested width
1274 * @height: requested height
1275 *
1276 * Surfaces need to be less than texture size
1277 */
1278static bool
1279vmw_kms_srf_ok(struct vmw_private *dev_priv, uint32_t width, uint32_t height)
1280{
1281 if (width > dev_priv->texture_max_width ||
1282 height > dev_priv->texture_max_height)
1283 return false;
1284
1285 return true;
1286}
1287
1288/**
1289 * vmw_kms_new_framebuffer - Create a new framebuffer.
1290 *
1291 * @dev_priv: Pointer to device private struct.
1292 * @bo: Pointer to buffer object to wrap the kms framebuffer around.
1293 * Either @bo or @surface must be NULL.
1294 * @surface: Pointer to a surface to wrap the kms framebuffer around.
1295 * Either @bo or @surface must be NULL.
1296 * @only_2d: No presents will occur to this buffer object based framebuffer.
1297 * This helps the code to do some important optimizations.
1298 * @mode_cmd: Frame-buffer metadata.
1299 */
1300struct vmw_framebuffer *
1301vmw_kms_new_framebuffer(struct vmw_private *dev_priv,
1302 struct vmw_buffer_object *bo,
1303 struct vmw_surface *surface,
1304 bool only_2d,
1305 const struct drm_mode_fb_cmd2 *mode_cmd)
1306{
1307 struct vmw_framebuffer *vfb = NULL;
1308 bool is_bo_proxy = false;
1309 int ret;
1310
1311 /*
1312 * We cannot use the SurfaceDMA command in an non-accelerated VM,
1313 * therefore, wrap the buffer object in a surface so we can use the
1314 * SurfaceCopy command.
1315 */
1316 if (vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height) &&
1317 bo && only_2d &&
1318 mode_cmd->width > 64 && /* Don't create a proxy for cursor */
1319 dev_priv->active_display_unit == vmw_du_screen_target) {
1320 ret = vmw_create_bo_proxy(dev_priv->dev, mode_cmd,
1321 bo, &surface);
1322 if (ret)
1323 return ERR_PTR(ret);
1324
1325 is_bo_proxy = true;
1326 }
1327
1328 /* Create the new framebuffer depending one what we have */
1329 if (surface) {
1330 ret = vmw_kms_new_framebuffer_surface(dev_priv, surface, &vfb,
1331 mode_cmd,
1332 is_bo_proxy);
1333
1334 /*
1335 * vmw_create_bo_proxy() adds a reference that is no longer
1336 * needed
1337 */
1338 if (is_bo_proxy)
1339 vmw_surface_unreference(&surface);
1340 } else if (bo) {
1341 ret = vmw_kms_new_framebuffer_bo(dev_priv, bo, &vfb,
1342 mode_cmd);
1343 } else {
1344 BUG();
1345 }
1346
1347 if (ret)
1348 return ERR_PTR(ret);
1349
1350 vfb->pin = vmw_framebuffer_pin;
1351 vfb->unpin = vmw_framebuffer_unpin;
1352
1353 return vfb;
1354}
1355
1356/*
1357 * Generic Kernel modesetting functions
1358 */
1359
1360static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
1361 struct drm_file *file_priv,
1362 const struct drm_mode_fb_cmd2 *mode_cmd)
1363{
1364 struct vmw_private *dev_priv = vmw_priv(dev);
1365 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1366 struct vmw_framebuffer *vfb = NULL;
1367 struct vmw_surface *surface = NULL;
1368 struct vmw_buffer_object *bo = NULL;
1369 struct ttm_base_object *user_obj;
1370 int ret;
1371
1372 /*
1373 * Take a reference on the user object of the resource
1374 * backing the kms fb. This ensures that user-space handle
1375 * lookups on that resource will always work as long as
1376 * it's registered with a kms framebuffer. This is important,
1377 * since vmw_execbuf_process identifies resources in the
1378 * command stream using user-space handles.
1379 */
1380
1381 user_obj = ttm_base_object_lookup(tfile, mode_cmd->handles[0]);
1382 if (unlikely(user_obj == NULL)) {
1383 DRM_ERROR("Could not locate requested kms frame buffer.\n");
1384 return ERR_PTR(-ENOENT);
1385 }
1386
1387 /**
1388 * End conditioned code.
1389 */
1390
1391 /* returns either a bo or surface */
1392 ret = vmw_user_lookup_handle(dev_priv, tfile,
1393 mode_cmd->handles[0],
1394 &surface, &bo);
1395 if (ret)
1396 goto err_out;
1397
1398
1399 if (!bo &&
1400 !vmw_kms_srf_ok(dev_priv, mode_cmd->width, mode_cmd->height)) {
1401 DRM_ERROR("Surface size cannot exceed %dx%d",
1402 dev_priv->texture_max_width,
1403 dev_priv->texture_max_height);
1404 goto err_out;
1405 }
1406
1407
1408 vfb = vmw_kms_new_framebuffer(dev_priv, bo, surface,
1409 !(dev_priv->capabilities & SVGA_CAP_3D),
1410 mode_cmd);
1411 if (IS_ERR(vfb)) {
1412 ret = PTR_ERR(vfb);
1413 goto err_out;
1414 }
1415
1416err_out:
1417 /* vmw_user_lookup_handle takes one ref so does new_fb */
1418 if (bo)
1419 vmw_bo_unreference(&bo);
1420 if (surface)
1421 vmw_surface_unreference(&surface);
1422
1423 if (ret) {
1424 DRM_ERROR("failed to create vmw_framebuffer: %i\n", ret);
1425 ttm_base_object_unref(&user_obj);
1426 return ERR_PTR(ret);
1427 } else
1428 vfb->user_obj = user_obj;
1429
1430 return &vfb->base;
1431}
1432
1433/**
1434 * vmw_kms_check_display_memory - Validates display memory required for a
1435 * topology
1436 * @dev: DRM device
1437 * @num_rects: number of drm_rect in rects
1438 * @rects: array of drm_rect representing the topology to validate indexed by
1439 * crtc index.
1440 *
1441 * Returns:
1442 * 0 on success otherwise negative error code
1443 */
1444static int vmw_kms_check_display_memory(struct drm_device *dev,
1445 uint32_t num_rects,
1446 struct drm_rect *rects)
1447{
1448 struct vmw_private *dev_priv = vmw_priv(dev);
1449 struct drm_rect bounding_box = {0};
1450 u64 total_pixels = 0, pixel_mem, bb_mem;
1451 int i;
1452
1453 for (i = 0; i < num_rects; i++) {
1454 /*
1455 * For STDU only individual screen (screen target) is limited by
1456 * SCREENTARGET_MAX_WIDTH/HEIGHT registers.
1457 */
1458 if (dev_priv->active_display_unit == vmw_du_screen_target &&
1459 (drm_rect_width(&rects[i]) > dev_priv->stdu_max_width ||
1460 drm_rect_height(&rects[i]) > dev_priv->stdu_max_height)) {
1461 VMW_DEBUG_KMS("Screen size not supported.\n");
1462 return -EINVAL;
1463 }
1464
1465 /* Bounding box upper left is at (0,0). */
1466 if (rects[i].x2 > bounding_box.x2)
1467 bounding_box.x2 = rects[i].x2;
1468
1469 if (rects[i].y2 > bounding_box.y2)
1470 bounding_box.y2 = rects[i].y2;
1471
1472 total_pixels += (u64) drm_rect_width(&rects[i]) *
1473 (u64) drm_rect_height(&rects[i]);
1474 }
1475
1476 /* Virtual svga device primary limits are always in 32-bpp. */
1477 pixel_mem = total_pixels * 4;
1478
1479 /*
1480 * For HV10 and below prim_bb_mem is vram size. When
1481 * SVGA_REG_MAX_PRIMARY_BOUNDING_BOX_MEM is not present vram size is
1482 * limit on primary bounding box
1483 */
1484 if (pixel_mem > dev_priv->prim_bb_mem) {
1485 VMW_DEBUG_KMS("Combined output size too large.\n");
1486 return -EINVAL;
1487 }
1488
1489 /* SVGA_CAP_NO_BB_RESTRICTION is available for STDU only. */
1490 if (dev_priv->active_display_unit != vmw_du_screen_target ||
1491 !(dev_priv->capabilities & SVGA_CAP_NO_BB_RESTRICTION)) {
1492 bb_mem = (u64) bounding_box.x2 * bounding_box.y2 * 4;
1493
1494 if (bb_mem > dev_priv->prim_bb_mem) {
1495 VMW_DEBUG_KMS("Topology is beyond supported limits.\n");
1496 return -EINVAL;
1497 }
1498 }
1499
1500 return 0;
1501}
1502
1503/**
1504 * vmw_crtc_state_and_lock - Return new or current crtc state with locked
1505 * crtc mutex
1506 * @state: The atomic state pointer containing the new atomic state
1507 * @crtc: The crtc
1508 *
1509 * This function returns the new crtc state if it's part of the state update.
1510 * Otherwise returns the current crtc state. It also makes sure that the
1511 * crtc mutex is locked.
1512 *
1513 * Returns: A valid crtc state pointer or NULL. It may also return a
1514 * pointer error, in particular -EDEADLK if locking needs to be rerun.
1515 */
1516static struct drm_crtc_state *
1517vmw_crtc_state_and_lock(struct drm_atomic_state *state, struct drm_crtc *crtc)
1518{
1519 struct drm_crtc_state *crtc_state;
1520
1521 crtc_state = drm_atomic_get_new_crtc_state(state, crtc);
1522 if (crtc_state) {
1523 lockdep_assert_held(&crtc->mutex.mutex.base);
1524 } else {
1525 int ret = drm_modeset_lock(&crtc->mutex, state->acquire_ctx);
1526
1527 if (ret != 0 && ret != -EALREADY)
1528 return ERR_PTR(ret);
1529
1530 crtc_state = crtc->state;
1531 }
1532
1533 return crtc_state;
1534}
1535
1536/**
1537 * vmw_kms_check_implicit - Verify that all implicit display units scan out
1538 * from the same fb after the new state is committed.
1539 * @dev: The drm_device.
1540 * @state: The new state to be checked.
1541 *
1542 * Returns:
1543 * Zero on success,
1544 * -EINVAL on invalid state,
1545 * -EDEADLK if modeset locking needs to be rerun.
1546 */
1547static int vmw_kms_check_implicit(struct drm_device *dev,
1548 struct drm_atomic_state *state)
1549{
1550 struct drm_framebuffer *implicit_fb = NULL;
1551 struct drm_crtc *crtc;
1552 struct drm_crtc_state *crtc_state;
1553 struct drm_plane_state *plane_state;
1554
1555 drm_for_each_crtc(crtc, dev) {
1556 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1557
1558 if (!du->is_implicit)
1559 continue;
1560
1561 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1562 if (IS_ERR(crtc_state))
1563 return PTR_ERR(crtc_state);
1564
1565 if (!crtc_state || !crtc_state->enable)
1566 continue;
1567
1568 /*
1569 * Can't move primary planes across crtcs, so this is OK.
1570 * It also means we don't need to take the plane mutex.
1571 */
1572 plane_state = du->primary.state;
1573 if (plane_state->crtc != crtc)
1574 continue;
1575
1576 if (!implicit_fb)
1577 implicit_fb = plane_state->fb;
1578 else if (implicit_fb != plane_state->fb)
1579 return -EINVAL;
1580 }
1581
1582 return 0;
1583}
1584
1585/**
1586 * vmw_kms_check_topology - Validates topology in drm_atomic_state
1587 * @dev: DRM device
1588 * @state: the driver state object
1589 *
1590 * Returns:
1591 * 0 on success otherwise negative error code
1592 */
1593static int vmw_kms_check_topology(struct drm_device *dev,
1594 struct drm_atomic_state *state)
1595{
1596 struct drm_crtc_state *old_crtc_state, *new_crtc_state;
1597 struct drm_rect *rects;
1598 struct drm_crtc *crtc;
1599 uint32_t i;
1600 int ret = 0;
1601
1602 rects = kcalloc(dev->mode_config.num_crtc, sizeof(struct drm_rect),
1603 GFP_KERNEL);
1604 if (!rects)
1605 return -ENOMEM;
1606
1607 drm_for_each_crtc(crtc, dev) {
1608 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1609 struct drm_crtc_state *crtc_state;
1610
1611 i = drm_crtc_index(crtc);
1612
1613 crtc_state = vmw_crtc_state_and_lock(state, crtc);
1614 if (IS_ERR(crtc_state)) {
1615 ret = PTR_ERR(crtc_state);
1616 goto clean;
1617 }
1618
1619 if (!crtc_state)
1620 continue;
1621
1622 if (crtc_state->enable) {
1623 rects[i].x1 = du->gui_x;
1624 rects[i].y1 = du->gui_y;
1625 rects[i].x2 = du->gui_x + crtc_state->mode.hdisplay;
1626 rects[i].y2 = du->gui_y + crtc_state->mode.vdisplay;
1627 } else {
1628 rects[i].x1 = 0;
1629 rects[i].y1 = 0;
1630 rects[i].x2 = 0;
1631 rects[i].y2 = 0;
1632 }
1633 }
1634
1635 /* Determine change to topology due to new atomic state */
1636 for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
1637 new_crtc_state, i) {
1638 struct vmw_display_unit *du = vmw_crtc_to_du(crtc);
1639 struct drm_connector *connector;
1640 struct drm_connector_state *conn_state;
1641 struct vmw_connector_state *vmw_conn_state;
1642
1643 if (!du->pref_active && new_crtc_state->enable) {
1644 VMW_DEBUG_KMS("Enabling a disabled display unit\n");
1645 ret = -EINVAL;
1646 goto clean;
1647 }
1648
1649 /*
1650 * For vmwgfx each crtc has only one connector attached and it
1651 * is not changed so don't really need to check the
1652 * crtc->connector_mask and iterate over it.
1653 */
1654 connector = &du->connector;
1655 conn_state = drm_atomic_get_connector_state(state, connector);
1656 if (IS_ERR(conn_state)) {
1657 ret = PTR_ERR(conn_state);
1658 goto clean;
1659 }
1660
1661 vmw_conn_state = vmw_connector_state_to_vcs(conn_state);
1662 vmw_conn_state->gui_x = du->gui_x;
1663 vmw_conn_state->gui_y = du->gui_y;
1664 }
1665
1666 ret = vmw_kms_check_display_memory(dev, dev->mode_config.num_crtc,
1667 rects);
1668
1669clean:
1670 kfree(rects);
1671 return ret;
1672}
1673
1674/**
1675 * vmw_kms_atomic_check_modeset- validate state object for modeset changes
1676 *
1677 * @dev: DRM device
1678 * @state: the driver state object
1679 *
1680 * This is a simple wrapper around drm_atomic_helper_check_modeset() for
1681 * us to assign a value to mode->crtc_clock so that
1682 * drm_calc_timestamping_constants() won't throw an error message
1683 *
1684 * Returns:
1685 * Zero for success or -errno
1686 */
1687static int
1688vmw_kms_atomic_check_modeset(struct drm_device *dev,
1689 struct drm_atomic_state *state)
1690{
1691 struct drm_crtc *crtc;
1692 struct drm_crtc_state *crtc_state;
1693 bool need_modeset = false;
1694 int i, ret;
1695
1696 ret = drm_atomic_helper_check(dev, state);
1697 if (ret)
1698 return ret;
1699
1700 ret = vmw_kms_check_implicit(dev, state);
1701 if (ret) {
1702 VMW_DEBUG_KMS("Invalid implicit state\n");
1703 return ret;
1704 }
1705
1706 for_each_new_crtc_in_state(state, crtc, crtc_state, i) {
1707 if (drm_atomic_crtc_needs_modeset(crtc_state))
1708 need_modeset = true;
1709 }
1710
1711 if (need_modeset)
1712 return vmw_kms_check_topology(dev, state);
1713
1714 return ret;
1715}
1716
1717static const struct drm_mode_config_funcs vmw_kms_funcs = {
1718 .fb_create = vmw_kms_fb_create,
1719 .atomic_check = vmw_kms_atomic_check_modeset,
1720 .atomic_commit = drm_atomic_helper_commit,
1721};
1722
1723static int vmw_kms_generic_present(struct vmw_private *dev_priv,
1724 struct drm_file *file_priv,
1725 struct vmw_framebuffer *vfb,
1726 struct vmw_surface *surface,
1727 uint32_t sid,
1728 int32_t destX, int32_t destY,
1729 struct drm_vmw_rect *clips,
1730 uint32_t num_clips)
1731{
1732 return vmw_kms_sou_do_surface_dirty(dev_priv, vfb, NULL, clips,
1733 &surface->res, destX, destY,
1734 num_clips, 1, NULL, NULL);
1735}
1736
1737
1738int vmw_kms_present(struct vmw_private *dev_priv,
1739 struct drm_file *file_priv,
1740 struct vmw_framebuffer *vfb,
1741 struct vmw_surface *surface,
1742 uint32_t sid,
1743 int32_t destX, int32_t destY,
1744 struct drm_vmw_rect *clips,
1745 uint32_t num_clips)
1746{
1747 int ret;
1748
1749 switch (dev_priv->active_display_unit) {
1750 case vmw_du_screen_target:
1751 ret = vmw_kms_stdu_surface_dirty(dev_priv, vfb, NULL, clips,
1752 &surface->res, destX, destY,
1753 num_clips, 1, NULL, NULL);
1754 break;
1755 case vmw_du_screen_object:
1756 ret = vmw_kms_generic_present(dev_priv, file_priv, vfb, surface,
1757 sid, destX, destY, clips,
1758 num_clips);
1759 break;
1760 default:
1761 WARN_ONCE(true,
1762 "Present called with invalid display system.\n");
1763 ret = -ENOSYS;
1764 break;
1765 }
1766 if (ret)
1767 return ret;
1768
1769 vmw_fifo_flush(dev_priv, false);
1770
1771 return 0;
1772}
1773
1774static void
1775vmw_kms_create_hotplug_mode_update_property(struct vmw_private *dev_priv)
1776{
1777 if (dev_priv->hotplug_mode_update_property)
1778 return;
1779
1780 dev_priv->hotplug_mode_update_property =
1781 drm_property_create_range(dev_priv->dev,
1782 DRM_MODE_PROP_IMMUTABLE,
1783 "hotplug_mode_update", 0, 1);
1784
1785 if (!dev_priv->hotplug_mode_update_property)
1786 return;
1787
1788}
1789
1790int vmw_kms_init(struct vmw_private *dev_priv)
1791{
1792 struct drm_device *dev = dev_priv->dev;
1793 int ret;
1794
1795 drm_mode_config_init(dev);
1796 dev->mode_config.funcs = &vmw_kms_funcs;
1797 dev->mode_config.min_width = 1;
1798 dev->mode_config.min_height = 1;
1799 dev->mode_config.max_width = dev_priv->texture_max_width;
1800 dev->mode_config.max_height = dev_priv->texture_max_height;
1801
1802 drm_mode_create_suggested_offset_properties(dev);
1803 vmw_kms_create_hotplug_mode_update_property(dev_priv);
1804
1805 ret = vmw_kms_stdu_init_display(dev_priv);
1806 if (ret) {
1807 ret = vmw_kms_sou_init_display(dev_priv);
1808 if (ret) /* Fallback */
1809 ret = vmw_kms_ldu_init_display(dev_priv);
1810 }
1811
1812 return ret;
1813}
1814
1815int vmw_kms_close(struct vmw_private *dev_priv)
1816{
1817 int ret = 0;
1818
1819 /*
1820 * Docs says we should take the lock before calling this function
1821 * but since it destroys encoders and our destructor calls
1822 * drm_encoder_cleanup which takes the lock we deadlock.
1823 */
1824 drm_mode_config_cleanup(dev_priv->dev);
1825 if (dev_priv->active_display_unit == vmw_du_legacy)
1826 ret = vmw_kms_ldu_close_display(dev_priv);
1827
1828 return ret;
1829}
1830
1831int vmw_kms_cursor_bypass_ioctl(struct drm_device *dev, void *data,
1832 struct drm_file *file_priv)
1833{
1834 struct drm_vmw_cursor_bypass_arg *arg = data;
1835 struct vmw_display_unit *du;
1836 struct drm_crtc *crtc;
1837 int ret = 0;
1838
1839
1840 mutex_lock(&dev->mode_config.mutex);
1841 if (arg->flags & DRM_VMW_CURSOR_BYPASS_ALL) {
1842
1843 list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
1844 du = vmw_crtc_to_du(crtc);
1845 du->hotspot_x = arg->xhot;
1846 du->hotspot_y = arg->yhot;
1847 }
1848
1849 mutex_unlock(&dev->mode_config.mutex);
1850 return 0;
1851 }
1852
1853 crtc = drm_crtc_find(dev, file_priv, arg->crtc_id);
1854 if (!crtc) {
1855 ret = -ENOENT;
1856 goto out;
1857 }
1858
1859 du = vmw_crtc_to_du(crtc);
1860
1861 du->hotspot_x = arg->xhot;
1862 du->hotspot_y = arg->yhot;
1863
1864out:
1865 mutex_unlock(&dev->mode_config.mutex);
1866
1867 return ret;
1868}
1869
1870int vmw_kms_write_svga(struct vmw_private *vmw_priv,
1871 unsigned width, unsigned height, unsigned pitch,
1872 unsigned bpp, unsigned depth)
1873{
1874 if (vmw_priv->capabilities & SVGA_CAP_PITCHLOCK)
1875 vmw_write(vmw_priv, SVGA_REG_PITCHLOCK, pitch);
1876 else if (vmw_fifo_have_pitchlock(vmw_priv))
1877 vmw_mmio_write(pitch, vmw_priv->mmio_virt +
1878 SVGA_FIFO_PITCHLOCK);
1879 vmw_write(vmw_priv, SVGA_REG_WIDTH, width);
1880 vmw_write(vmw_priv, SVGA_REG_HEIGHT, height);
1881 vmw_write(vmw_priv, SVGA_REG_BITS_PER_PIXEL, bpp);
1882
1883 if (vmw_read(vmw_priv, SVGA_REG_DEPTH) != depth) {
1884 DRM_ERROR("Invalid depth %u for %u bpp, host expects %u\n",
1885 depth, bpp, vmw_read(vmw_priv, SVGA_REG_DEPTH));
1886 return -EINVAL;
1887 }
1888
1889 return 0;
1890}
1891
1892bool vmw_kms_validate_mode_vram(struct vmw_private *dev_priv,
1893 uint32_t pitch,
1894 uint32_t height)
1895{
1896 return ((u64) pitch * (u64) height) < (u64)
1897 ((dev_priv->active_display_unit == vmw_du_screen_target) ?
1898 dev_priv->prim_bb_mem : dev_priv->vram_size);
1899}
1900
1901
1902/**
1903 * Function called by DRM code called with vbl_lock held.
1904 */
1905u32 vmw_get_vblank_counter(struct drm_crtc *crtc)
1906{
1907 return 0;
1908}
1909
1910/**
1911 * Function called by DRM code called with vbl_lock held.
1912 */
1913int vmw_enable_vblank(struct drm_crtc *crtc)
1914{
1915 return -EINVAL;
1916}
1917
1918/**
1919 * Function called by DRM code called with vbl_lock held.
1920 */
1921void vmw_disable_vblank(struct drm_crtc *crtc)
1922{
1923}
1924
1925/**
1926 * vmw_du_update_layout - Update the display unit with topology from resolution
1927 * plugin and generate DRM uevent
1928 * @dev_priv: device private
1929 * @num_rects: number of drm_rect in rects
1930 * @rects: toplogy to update
1931 */
1932static int vmw_du_update_layout(struct vmw_private *dev_priv,
1933 unsigned int num_rects, struct drm_rect *rects)
1934{
1935 struct drm_device *dev = dev_priv->dev;
1936 struct vmw_display_unit *du;
1937 struct drm_connector *con;
1938 struct drm_connector_list_iter conn_iter;
1939 struct drm_modeset_acquire_ctx ctx;
1940 struct drm_crtc *crtc;
1941 int ret;
1942
1943 /* Currently gui_x/y is protected with the crtc mutex */
1944 mutex_lock(&dev->mode_config.mutex);
1945 drm_modeset_acquire_init(&ctx, 0);
1946retry:
1947 drm_for_each_crtc(crtc, dev) {
1948 ret = drm_modeset_lock(&crtc->mutex, &ctx);
1949 if (ret < 0) {
1950 if (ret == -EDEADLK) {
1951 drm_modeset_backoff(&ctx);
1952 goto retry;
1953 }
1954 goto out_fini;
1955 }
1956 }
1957
1958 drm_connector_list_iter_begin(dev, &conn_iter);
1959 drm_for_each_connector_iter(con, &conn_iter) {
1960 du = vmw_connector_to_du(con);
1961 if (num_rects > du->unit) {
1962 du->pref_width = drm_rect_width(&rects[du->unit]);
1963 du->pref_height = drm_rect_height(&rects[du->unit]);
1964 du->pref_active = true;
1965 du->gui_x = rects[du->unit].x1;
1966 du->gui_y = rects[du->unit].y1;
1967 } else {
1968 du->pref_width = 800;
1969 du->pref_height = 600;
1970 du->pref_active = false;
1971 du->gui_x = 0;
1972 du->gui_y = 0;
1973 }
1974 }
1975 drm_connector_list_iter_end(&conn_iter);
1976
1977 list_for_each_entry(con, &dev->mode_config.connector_list, head) {
1978 du = vmw_connector_to_du(con);
1979 if (num_rects > du->unit) {
1980 drm_object_property_set_value
1981 (&con->base, dev->mode_config.suggested_x_property,
1982 du->gui_x);
1983 drm_object_property_set_value
1984 (&con->base, dev->mode_config.suggested_y_property,
1985 du->gui_y);
1986 } else {
1987 drm_object_property_set_value
1988 (&con->base, dev->mode_config.suggested_x_property,
1989 0);
1990 drm_object_property_set_value
1991 (&con->base, dev->mode_config.suggested_y_property,
1992 0);
1993 }
1994 con->status = vmw_du_connector_detect(con, true);
1995 }
1996
1997 drm_sysfs_hotplug_event(dev);
1998out_fini:
1999 drm_modeset_drop_locks(&ctx);
2000 drm_modeset_acquire_fini(&ctx);
2001 mutex_unlock(&dev->mode_config.mutex);
2002
2003 return 0;
2004}
2005
2006int vmw_du_crtc_gamma_set(struct drm_crtc *crtc,
2007 u16 *r, u16 *g, u16 *b,
2008 uint32_t size,
2009 struct drm_modeset_acquire_ctx *ctx)
2010{
2011 struct vmw_private *dev_priv = vmw_priv(crtc->dev);
2012 int i;
2013
2014 for (i = 0; i < size; i++) {
2015 DRM_DEBUG("%d r/g/b = 0x%04x / 0x%04x / 0x%04x\n", i,
2016 r[i], g[i], b[i]);
2017 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 0, r[i] >> 8);
2018 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 1, g[i] >> 8);
2019 vmw_write(dev_priv, SVGA_PALETTE_BASE + i * 3 + 2, b[i] >> 8);
2020 }
2021
2022 return 0;
2023}
2024
2025int vmw_du_connector_dpms(struct drm_connector *connector, int mode)
2026{
2027 return 0;
2028}
2029
2030enum drm_connector_status
2031vmw_du_connector_detect(struct drm_connector *connector, bool force)
2032{
2033 uint32_t num_displays;
2034 struct drm_device *dev = connector->dev;
2035 struct vmw_private *dev_priv = vmw_priv(dev);
2036 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2037
2038 num_displays = vmw_read(dev_priv, SVGA_REG_NUM_DISPLAYS);
2039
2040 return ((vmw_connector_to_du(connector)->unit < num_displays &&
2041 du->pref_active) ?
2042 connector_status_connected : connector_status_disconnected);
2043}
2044
2045static struct drm_display_mode vmw_kms_connector_builtin[] = {
2046 /* 640x480@60Hz */
2047 { DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
2048 752, 800, 0, 480, 489, 492, 525, 0,
2049 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2050 /* 800x600@60Hz */
2051 { DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 40000, 800, 840,
2052 968, 1056, 0, 600, 601, 605, 628, 0,
2053 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2054 /* 1024x768@60Hz */
2055 { DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
2056 1184, 1344, 0, 768, 771, 777, 806, 0,
2057 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
2058 /* 1152x864@75Hz */
2059 { DRM_MODE("1152x864", DRM_MODE_TYPE_DRIVER, 108000, 1152, 1216,
2060 1344, 1600, 0, 864, 865, 868, 900, 0,
2061 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2062 /* 1280x768@60Hz */
2063 { DRM_MODE("1280x768", DRM_MODE_TYPE_DRIVER, 79500, 1280, 1344,
2064 1472, 1664, 0, 768, 771, 778, 798, 0,
2065 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2066 /* 1280x800@60Hz */
2067 { DRM_MODE("1280x800", DRM_MODE_TYPE_DRIVER, 83500, 1280, 1352,
2068 1480, 1680, 0, 800, 803, 809, 831, 0,
2069 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
2070 /* 1280x960@60Hz */
2071 { DRM_MODE("1280x960", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1376,
2072 1488, 1800, 0, 960, 961, 964, 1000, 0,
2073 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2074 /* 1280x1024@60Hz */
2075 { DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 108000, 1280, 1328,
2076 1440, 1688, 0, 1024, 1025, 1028, 1066, 0,
2077 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2078 /* 1360x768@60Hz */
2079 { DRM_MODE("1360x768", DRM_MODE_TYPE_DRIVER, 85500, 1360, 1424,
2080 1536, 1792, 0, 768, 771, 777, 795, 0,
2081 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2082 /* 1440x1050@60Hz */
2083 { DRM_MODE("1400x1050", DRM_MODE_TYPE_DRIVER, 121750, 1400, 1488,
2084 1632, 1864, 0, 1050, 1053, 1057, 1089, 0,
2085 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2086 /* 1440x900@60Hz */
2087 { DRM_MODE("1440x900", DRM_MODE_TYPE_DRIVER, 106500, 1440, 1520,
2088 1672, 1904, 0, 900, 903, 909, 934, 0,
2089 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2090 /* 1600x1200@60Hz */
2091 { DRM_MODE("1600x1200", DRM_MODE_TYPE_DRIVER, 162000, 1600, 1664,
2092 1856, 2160, 0, 1200, 1201, 1204, 1250, 0,
2093 DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
2094 /* 1680x1050@60Hz */
2095 { DRM_MODE("1680x1050", DRM_MODE_TYPE_DRIVER, 146250, 1680, 1784,
2096 1960, 2240, 0, 1050, 1053, 1059, 1089, 0,
2097 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2098 /* 1792x1344@60Hz */
2099 { DRM_MODE("1792x1344", DRM_MODE_TYPE_DRIVER, 204750, 1792, 1920,
2100 2120, 2448, 0, 1344, 1345, 1348, 1394, 0,
2101 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2102 /* 1853x1392@60Hz */
2103 { DRM_MODE("1856x1392", DRM_MODE_TYPE_DRIVER, 218250, 1856, 1952,
2104 2176, 2528, 0, 1392, 1393, 1396, 1439, 0,
2105 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2106 /* 1920x1200@60Hz */
2107 { DRM_MODE("1920x1200", DRM_MODE_TYPE_DRIVER, 193250, 1920, 2056,
2108 2256, 2592, 0, 1200, 1203, 1209, 1245, 0,
2109 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2110 /* 1920x1440@60Hz */
2111 { DRM_MODE("1920x1440", DRM_MODE_TYPE_DRIVER, 234000, 1920, 2048,
2112 2256, 2600, 0, 1440, 1441, 1444, 1500, 0,
2113 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2114 /* 2560x1600@60Hz */
2115 { DRM_MODE("2560x1600", DRM_MODE_TYPE_DRIVER, 348500, 2560, 2752,
2116 3032, 3504, 0, 1600, 1603, 1609, 1658, 0,
2117 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC) },
2118 /* Terminate */
2119 { DRM_MODE("", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0) },
2120};
2121
2122/**
2123 * vmw_guess_mode_timing - Provide fake timings for a
2124 * 60Hz vrefresh mode.
2125 *
2126 * @mode - Pointer to a struct drm_display_mode with hdisplay and vdisplay
2127 * members filled in.
2128 */
2129void vmw_guess_mode_timing(struct drm_display_mode *mode)
2130{
2131 mode->hsync_start = mode->hdisplay + 50;
2132 mode->hsync_end = mode->hsync_start + 50;
2133 mode->htotal = mode->hsync_end + 50;
2134
2135 mode->vsync_start = mode->vdisplay + 50;
2136 mode->vsync_end = mode->vsync_start + 50;
2137 mode->vtotal = mode->vsync_end + 50;
2138
2139 mode->clock = (u32)mode->htotal * (u32)mode->vtotal / 100 * 6;
2140}
2141
2142
2143int vmw_du_connector_fill_modes(struct drm_connector *connector,
2144 uint32_t max_width, uint32_t max_height)
2145{
2146 struct vmw_display_unit *du = vmw_connector_to_du(connector);
2147 struct drm_device *dev = connector->dev;
2148 struct vmw_private *dev_priv = vmw_priv(dev);
2149 struct drm_display_mode *mode = NULL;
2150 struct drm_display_mode *bmode;
2151 struct drm_display_mode prefmode = { DRM_MODE("preferred",
2152 DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
2153 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2154 DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC)
2155 };
2156 int i;
2157 u32 assumed_bpp = 4;
2158
2159 if (dev_priv->assume_16bpp)
2160 assumed_bpp = 2;
2161
2162 max_width = min(max_width, dev_priv->texture_max_width);
2163 max_height = min(max_height, dev_priv->texture_max_height);
2164
2165 /*
2166 * For STDU extra limit for a mode on SVGA_REG_SCREENTARGET_MAX_WIDTH/
2167 * HEIGHT registers.
2168 */
2169 if (dev_priv->active_display_unit == vmw_du_screen_target) {
2170 max_width = min(max_width, dev_priv->stdu_max_width);
2171 max_height = min(max_height, dev_priv->stdu_max_height);
2172 }
2173
2174 /* Add preferred mode */
2175 mode = drm_mode_duplicate(dev, &prefmode);
2176 if (!mode)
2177 return 0;
2178 mode->hdisplay = du->pref_width;
2179 mode->vdisplay = du->pref_height;
2180 vmw_guess_mode_timing(mode);
2181
2182 if (vmw_kms_validate_mode_vram(dev_priv,
2183 mode->hdisplay * assumed_bpp,
2184 mode->vdisplay)) {
2185 drm_mode_probed_add(connector, mode);
2186 } else {
2187 drm_mode_destroy(dev, mode);
2188 mode = NULL;
2189 }
2190
2191 if (du->pref_mode) {
2192 list_del_init(&du->pref_mode->head);
2193 drm_mode_destroy(dev, du->pref_mode);
2194 }
2195
2196 /* mode might be null here, this is intended */
2197 du->pref_mode = mode;
2198
2199 for (i = 0; vmw_kms_connector_builtin[i].type != 0; i++) {
2200 bmode = &vmw_kms_connector_builtin[i];
2201 if (bmode->hdisplay > max_width ||
2202 bmode->vdisplay > max_height)
2203 continue;
2204
2205 if (!vmw_kms_validate_mode_vram(dev_priv,
2206 bmode->hdisplay * assumed_bpp,
2207 bmode->vdisplay))
2208 continue;
2209
2210 mode = drm_mode_duplicate(dev, bmode);
2211 if (!mode)
2212 return 0;
2213
2214 drm_mode_probed_add(connector, mode);
2215 }
2216
2217 drm_connector_list_update(connector);
2218 /* Move the prefered mode first, help apps pick the right mode. */
2219 drm_mode_sort(&connector->modes);
2220
2221 return 1;
2222}
2223
2224/**
2225 * vmw_kms_update_layout_ioctl - Handler for DRM_VMW_UPDATE_LAYOUT ioctl
2226 * @dev: drm device for the ioctl
2227 * @data: data pointer for the ioctl
2228 * @file_priv: drm file for the ioctl call
2229 *
2230 * Update preferred topology of display unit as per ioctl request. The topology
2231 * is expressed as array of drm_vmw_rect.
2232 * e.g.
2233 * [0 0 640 480] [640 0 800 600] [0 480 640 480]
2234 *
2235 * NOTE:
2236 * The x and y offset (upper left) in drm_vmw_rect cannot be less than 0. Beside
2237 * device limit on topology, x + w and y + h (lower right) cannot be greater
2238 * than INT_MAX. So topology beyond these limits will return with error.
2239 *
2240 * Returns:
2241 * Zero on success, negative errno on failure.
2242 */
2243int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data,
2244 struct drm_file *file_priv)
2245{
2246 struct vmw_private *dev_priv = vmw_priv(dev);
2247 struct drm_mode_config *mode_config = &dev->mode_config;
2248 struct drm_vmw_update_layout_arg *arg =
2249 (struct drm_vmw_update_layout_arg *)data;
2250 void __user *user_rects;
2251 struct drm_vmw_rect *rects;
2252 struct drm_rect *drm_rects;
2253 unsigned rects_size;
2254 int ret, i;
2255
2256 if (!arg->num_outputs) {
2257 struct drm_rect def_rect = {0, 0, 800, 600};
2258 VMW_DEBUG_KMS("Default layout x1 = %d y1 = %d x2 = %d y2 = %d\n",
2259 def_rect.x1, def_rect.y1,
2260 def_rect.x2, def_rect.y2);
2261 vmw_du_update_layout(dev_priv, 1, &def_rect);
2262 return 0;
2263 }
2264
2265 rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect);
2266 rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect),
2267 GFP_KERNEL);
2268 if (unlikely(!rects))
2269 return -ENOMEM;
2270
2271 user_rects = (void __user *)(unsigned long)arg->rects;
2272 ret = copy_from_user(rects, user_rects, rects_size);
2273 if (unlikely(ret != 0)) {
2274 DRM_ERROR("Failed to get rects.\n");
2275 ret = -EFAULT;
2276 goto out_free;
2277 }
2278
2279 drm_rects = (struct drm_rect *)rects;
2280
2281 VMW_DEBUG_KMS("Layout count = %u\n", arg->num_outputs);
2282 for (i = 0; i < arg->num_outputs; i++) {
2283 struct drm_vmw_rect curr_rect;
2284
2285 /* Verify user-space for overflow as kernel use drm_rect */
2286 if ((rects[i].x + rects[i].w > INT_MAX) ||
2287 (rects[i].y + rects[i].h > INT_MAX)) {
2288 ret = -ERANGE;
2289 goto out_free;
2290 }
2291
2292 curr_rect = rects[i];
2293 drm_rects[i].x1 = curr_rect.x;
2294 drm_rects[i].y1 = curr_rect.y;
2295 drm_rects[i].x2 = curr_rect.x + curr_rect.w;
2296 drm_rects[i].y2 = curr_rect.y + curr_rect.h;
2297
2298 VMW_DEBUG_KMS(" x1 = %d y1 = %d x2 = %d y2 = %d\n",
2299 drm_rects[i].x1, drm_rects[i].y1,
2300 drm_rects[i].x2, drm_rects[i].y2);
2301
2302 /*
2303 * Currently this check is limiting the topology within
2304 * mode_config->max (which actually is max texture size
2305 * supported by virtual device). This limit is here to address
2306 * window managers that create a big framebuffer for whole
2307 * topology.
2308 */
2309 if (drm_rects[i].x1 < 0 || drm_rects[i].y1 < 0 ||
2310 drm_rects[i].x2 > mode_config->max_width ||
2311 drm_rects[i].y2 > mode_config->max_height) {
2312 VMW_DEBUG_KMS("Invalid layout %d %d %d %d\n",
2313 drm_rects[i].x1, drm_rects[i].y1,
2314 drm_rects[i].x2, drm_rects[i].y2);
2315 ret = -EINVAL;
2316 goto out_free;
2317 }
2318 }
2319
2320 ret = vmw_kms_check_display_memory(dev, arg->num_outputs, drm_rects);
2321
2322 if (ret == 0)
2323 vmw_du_update_layout(dev_priv, arg->num_outputs, drm_rects);
2324
2325out_free:
2326 kfree(rects);
2327 return ret;
2328}
2329
2330/**
2331 * vmw_kms_helper_dirty - Helper to build commands and perform actions based
2332 * on a set of cliprects and a set of display units.
2333 *
2334 * @dev_priv: Pointer to a device private structure.
2335 * @framebuffer: Pointer to the framebuffer on which to perform the actions.
2336 * @clips: A set of struct drm_clip_rect. Either this os @vclips must be NULL.
2337 * Cliprects are given in framebuffer coordinates.
2338 * @vclips: A set of struct drm_vmw_rect cliprects. Either this or @clips must
2339 * be NULL. Cliprects are given in source coordinates.
2340 * @dest_x: X coordinate offset for the crtc / destination clip rects.
2341 * @dest_y: Y coordinate offset for the crtc / destination clip rects.
2342 * @num_clips: Number of cliprects in the @clips or @vclips array.
2343 * @increment: Integer with which to increment the clip counter when looping.
2344 * Used to skip a predetermined number of clip rects.
2345 * @dirty: Closure structure. See the description of struct vmw_kms_dirty.
2346 */
2347int vmw_kms_helper_dirty(struct vmw_private *dev_priv,
2348 struct vmw_framebuffer *framebuffer,
2349 const struct drm_clip_rect *clips,
2350 const struct drm_vmw_rect *vclips,
2351 s32 dest_x, s32 dest_y,
2352 int num_clips,
2353 int increment,
2354 struct vmw_kms_dirty *dirty)
2355{
2356 struct vmw_display_unit *units[VMWGFX_NUM_DISPLAY_UNITS];
2357 struct drm_crtc *crtc;
2358 u32 num_units = 0;
2359 u32 i, k;
2360
2361 dirty->dev_priv = dev_priv;
2362
2363 /* If crtc is passed, no need to iterate over other display units */
2364 if (dirty->crtc) {
2365 units[num_units++] = vmw_crtc_to_du(dirty->crtc);
2366 } else {
2367 list_for_each_entry(crtc, &dev_priv->dev->mode_config.crtc_list,
2368 head) {
2369 struct drm_plane *plane = crtc->primary;
2370
2371 if (plane->state->fb == &framebuffer->base)
2372 units[num_units++] = vmw_crtc_to_du(crtc);
2373 }
2374 }
2375
2376 for (k = 0; k < num_units; k++) {
2377 struct vmw_display_unit *unit = units[k];
2378 s32 crtc_x = unit->crtc.x;
2379 s32 crtc_y = unit->crtc.y;
2380 s32 crtc_width = unit->crtc.mode.hdisplay;
2381 s32 crtc_height = unit->crtc.mode.vdisplay;
2382 const struct drm_clip_rect *clips_ptr = clips;
2383 const struct drm_vmw_rect *vclips_ptr = vclips;
2384
2385 dirty->unit = unit;
2386 if (dirty->fifo_reserve_size > 0) {
2387 dirty->cmd = VMW_FIFO_RESERVE(dev_priv,
2388 dirty->fifo_reserve_size);
2389 if (!dirty->cmd)
2390 return -ENOMEM;
2391
2392 memset(dirty->cmd, 0, dirty->fifo_reserve_size);
2393 }
2394 dirty->num_hits = 0;
2395 for (i = 0; i < num_clips; i++, clips_ptr += increment,
2396 vclips_ptr += increment) {
2397 s32 clip_left;
2398 s32 clip_top;
2399
2400 /*
2401 * Select clip array type. Note that integer type
2402 * in @clips is unsigned short, whereas in @vclips
2403 * it's 32-bit.
2404 */
2405 if (clips) {
2406 dirty->fb_x = (s32) clips_ptr->x1;
2407 dirty->fb_y = (s32) clips_ptr->y1;
2408 dirty->unit_x2 = (s32) clips_ptr->x2 + dest_x -
2409 crtc_x;
2410 dirty->unit_y2 = (s32) clips_ptr->y2 + dest_y -
2411 crtc_y;
2412 } else {
2413 dirty->fb_x = vclips_ptr->x;
2414 dirty->fb_y = vclips_ptr->y;
2415 dirty->unit_x2 = dirty->fb_x + vclips_ptr->w +
2416 dest_x - crtc_x;
2417 dirty->unit_y2 = dirty->fb_y + vclips_ptr->h +
2418 dest_y - crtc_y;
2419 }
2420
2421 dirty->unit_x1 = dirty->fb_x + dest_x - crtc_x;
2422 dirty->unit_y1 = dirty->fb_y + dest_y - crtc_y;
2423
2424 /* Skip this clip if it's outside the crtc region */
2425 if (dirty->unit_x1 >= crtc_width ||
2426 dirty->unit_y1 >= crtc_height ||
2427 dirty->unit_x2 <= 0 || dirty->unit_y2 <= 0)
2428 continue;
2429
2430 /* Clip right and bottom to crtc limits */
2431 dirty->unit_x2 = min_t(s32, dirty->unit_x2,
2432 crtc_width);
2433 dirty->unit_y2 = min_t(s32, dirty->unit_y2,
2434 crtc_height);
2435
2436 /* Clip left and top to crtc limits */
2437 clip_left = min_t(s32, dirty->unit_x1, 0);
2438 clip_top = min_t(s32, dirty->unit_y1, 0);
2439 dirty->unit_x1 -= clip_left;
2440 dirty->unit_y1 -= clip_top;
2441 dirty->fb_x -= clip_left;
2442 dirty->fb_y -= clip_top;
2443
2444 dirty->clip(dirty);
2445 }
2446
2447 dirty->fifo_commit(dirty);
2448 }
2449
2450 return 0;
2451}
2452
2453/**
2454 * vmw_kms_helper_validation_finish - Helper for post KMS command submission
2455 * cleanup and fencing
2456 * @dev_priv: Pointer to the device-private struct
2457 * @file_priv: Pointer identifying the client when user-space fencing is used
2458 * @ctx: Pointer to the validation context
2459 * @out_fence: If non-NULL, returned refcounted fence-pointer
2460 * @user_fence_rep: If non-NULL, pointer to user-space address area
2461 * in which to copy user-space fence info
2462 */
2463void vmw_kms_helper_validation_finish(struct vmw_private *dev_priv,
2464 struct drm_file *file_priv,
2465 struct vmw_validation_context *ctx,
2466 struct vmw_fence_obj **out_fence,
2467 struct drm_vmw_fence_rep __user *
2468 user_fence_rep)
2469{
2470 struct vmw_fence_obj *fence = NULL;
2471 uint32_t handle = 0;
2472 int ret = 0;
2473
2474 if (file_priv || user_fence_rep || vmw_validation_has_bos(ctx) ||
2475 out_fence)
2476 ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
2477 file_priv ? &handle : NULL);
2478 vmw_validation_done(ctx, fence);
2479 if (file_priv)
2480 vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv),
2481 ret, user_fence_rep, fence,
2482 handle, -1, NULL);
2483 if (out_fence)
2484 *out_fence = fence;
2485 else
2486 vmw_fence_obj_unreference(&fence);
2487}
2488
2489/**
2490 * vmw_kms_update_proxy - Helper function to update a proxy surface from
2491 * its backing MOB.
2492 *
2493 * @res: Pointer to the surface resource
2494 * @clips: Clip rects in framebuffer (surface) space.
2495 * @num_clips: Number of clips in @clips.
2496 * @increment: Integer with which to increment the clip counter when looping.
2497 * Used to skip a predetermined number of clip rects.
2498 *
2499 * This function makes sure the proxy surface is updated from its backing MOB
2500 * using the region given by @clips. The surface resource @res and its backing
2501 * MOB needs to be reserved and validated on call.
2502 */
2503int vmw_kms_update_proxy(struct vmw_resource *res,
2504 const struct drm_clip_rect *clips,
2505 unsigned num_clips,
2506 int increment)
2507{
2508 struct vmw_private *dev_priv = res->dev_priv;
2509 struct drm_vmw_size *size = &vmw_res_to_srf(res)->metadata.base_size;
2510 struct {
2511 SVGA3dCmdHeader header;
2512 SVGA3dCmdUpdateGBImage body;
2513 } *cmd;
2514 SVGA3dBox *box;
2515 size_t copy_size = 0;
2516 int i;
2517
2518 if (!clips)
2519 return 0;
2520
2521 cmd = VMW_FIFO_RESERVE(dev_priv, sizeof(*cmd) * num_clips);
2522 if (!cmd)
2523 return -ENOMEM;
2524
2525 for (i = 0; i < num_clips; ++i, clips += increment, ++cmd) {
2526 box = &cmd->body.box;
2527
2528 cmd->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
2529 cmd->header.size = sizeof(cmd->body);
2530 cmd->body.image.sid = res->id;
2531 cmd->body.image.face = 0;
2532 cmd->body.image.mipmap = 0;
2533
2534 if (clips->x1 > size->width || clips->x2 > size->width ||
2535 clips->y1 > size->height || clips->y2 > size->height) {
2536 DRM_ERROR("Invalid clips outsize of framebuffer.\n");
2537 return -EINVAL;
2538 }
2539
2540 box->x = clips->x1;
2541 box->y = clips->y1;
2542 box->z = 0;
2543 box->w = clips->x2 - clips->x1;
2544 box->h = clips->y2 - clips->y1;
2545 box->d = 1;
2546
2547 copy_size += sizeof(*cmd);
2548 }
2549
2550 vmw_fifo_commit(dev_priv, copy_size);
2551
2552 return 0;
2553}
2554
2555int vmw_kms_fbdev_init_data(struct vmw_private *dev_priv,
2556 unsigned unit,
2557 u32 max_width,
2558 u32 max_height,
2559 struct drm_connector **p_con,
2560 struct drm_crtc **p_crtc,
2561 struct drm_display_mode **p_mode)
2562{
2563 struct drm_connector *con;
2564 struct vmw_display_unit *du;
2565 struct drm_display_mode *mode;
2566 int i = 0;
2567 int ret = 0;
2568
2569 mutex_lock(&dev_priv->dev->mode_config.mutex);
2570 list_for_each_entry(con, &dev_priv->dev->mode_config.connector_list,
2571 head) {
2572 if (i == unit)
2573 break;
2574
2575 ++i;
2576 }
2577
2578 if (&con->head == &dev_priv->dev->mode_config.connector_list) {
2579 DRM_ERROR("Could not find initial display unit.\n");
2580 ret = -EINVAL;
2581 goto out_unlock;
2582 }
2583
2584 if (list_empty(&con->modes))
2585 (void) vmw_du_connector_fill_modes(con, max_width, max_height);
2586
2587 if (list_empty(&con->modes)) {
2588 DRM_ERROR("Could not find initial display mode.\n");
2589 ret = -EINVAL;
2590 goto out_unlock;
2591 }
2592
2593 du = vmw_connector_to_du(con);
2594 *p_con = con;
2595 *p_crtc = &du->crtc;
2596
2597 list_for_each_entry(mode, &con->modes, head) {
2598 if (mode->type & DRM_MODE_TYPE_PREFERRED)
2599 break;
2600 }
2601
2602 if (&mode->head == &con->modes) {
2603 WARN_ONCE(true, "Could not find initial preferred mode.\n");
2604 *p_mode = list_first_entry(&con->modes,
2605 struct drm_display_mode,
2606 head);
2607 } else {
2608 *p_mode = mode;
2609 }
2610
2611 out_unlock:
2612 mutex_unlock(&dev_priv->dev->mode_config.mutex);
2613
2614 return ret;
2615}
2616
2617/**
2618 * vmw_kms_create_implicit_placement_proparty - Set up the implicit placement
2619 * property.
2620 *
2621 * @dev_priv: Pointer to a device private struct.
2622 *
2623 * Sets up the implicit placement property unless it's already set up.
2624 */
2625void
2626vmw_kms_create_implicit_placement_property(struct vmw_private *dev_priv)
2627{
2628 if (dev_priv->implicit_placement_property)
2629 return;
2630
2631 dev_priv->implicit_placement_property =
2632 drm_property_create_range(dev_priv->dev,
2633 DRM_MODE_PROP_IMMUTABLE,
2634 "implicit_placement", 0, 1);
2635}
2636
2637/**
2638 * vmw_kms_suspend - Save modesetting state and turn modesetting off.
2639 *
2640 * @dev: Pointer to the drm device
2641 * Return: 0 on success. Negative error code on failure.
2642 */
2643int vmw_kms_suspend(struct drm_device *dev)
2644{
2645 struct vmw_private *dev_priv = vmw_priv(dev);
2646
2647 dev_priv->suspend_state = drm_atomic_helper_suspend(dev);
2648 if (IS_ERR(dev_priv->suspend_state)) {
2649 int ret = PTR_ERR(dev_priv->suspend_state);
2650
2651 DRM_ERROR("Failed kms suspend: %d\n", ret);
2652 dev_priv->suspend_state = NULL;
2653
2654 return ret;
2655 }
2656
2657 return 0;
2658}
2659
2660
2661/**
2662 * vmw_kms_resume - Re-enable modesetting and restore state
2663 *
2664 * @dev: Pointer to the drm device
2665 * Return: 0 on success. Negative error code on failure.
2666 *
2667 * State is resumed from a previous vmw_kms_suspend(). It's illegal
2668 * to call this function without a previous vmw_kms_suspend().
2669 */
2670int vmw_kms_resume(struct drm_device *dev)
2671{
2672 struct vmw_private *dev_priv = vmw_priv(dev);
2673 int ret;
2674
2675 if (WARN_ON(!dev_priv->suspend_state))
2676 return 0;
2677
2678 ret = drm_atomic_helper_resume(dev, dev_priv->suspend_state);
2679 dev_priv->suspend_state = NULL;
2680
2681 return ret;
2682}
2683
2684/**
2685 * vmw_kms_lost_device - Notify kms that modesetting capabilities will be lost
2686 *
2687 * @dev: Pointer to the drm device
2688 */
2689void vmw_kms_lost_device(struct drm_device *dev)
2690{
2691 drm_atomic_helper_shutdown(dev);
2692}
2693
2694/**
2695 * vmw_du_helper_plane_update - Helper to do plane update on a display unit.
2696 * @update: The closure structure.
2697 *
2698 * Call this helper after setting callbacks in &vmw_du_update_plane to do plane
2699 * update on display unit.
2700 *
2701 * Return: 0 on success or a negative error code on failure.
2702 */
2703int vmw_du_helper_plane_update(struct vmw_du_update_plane *update)
2704{
2705 struct drm_plane_state *state = update->plane->state;
2706 struct drm_plane_state *old_state = update->old_state;
2707 struct drm_atomic_helper_damage_iter iter;
2708 struct drm_rect clip;
2709 struct drm_rect bb;
2710 DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
2711 uint32_t reserved_size = 0;
2712 uint32_t submit_size = 0;
2713 uint32_t curr_size = 0;
2714 uint32_t num_hits = 0;
2715 void *cmd_start;
2716 char *cmd_next;
2717 int ret;
2718
2719 /*
2720 * Iterate in advance to check if really need plane update and find the
2721 * number of clips that actually are in plane src for fifo allocation.
2722 */
2723 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2724 drm_atomic_for_each_plane_damage(&iter, &clip)
2725 num_hits++;
2726
2727 if (num_hits == 0)
2728 return 0;
2729
2730 if (update->vfb->bo) {
2731 struct vmw_framebuffer_bo *vfbbo =
2732 container_of(update->vfb, typeof(*vfbbo), base);
2733
2734 ret = vmw_validation_add_bo(&val_ctx, vfbbo->buffer, false,
2735 update->cpu_blit);
2736 } else {
2737 struct vmw_framebuffer_surface *vfbs =
2738 container_of(update->vfb, typeof(*vfbs), base);
2739
2740 ret = vmw_validation_add_resource(&val_ctx, &vfbs->surface->res,
2741 0, VMW_RES_DIRTY_NONE, NULL,
2742 NULL);
2743 }
2744
2745 if (ret)
2746 return ret;
2747
2748 ret = vmw_validation_prepare(&val_ctx, update->mutex, update->intr);
2749 if (ret)
2750 goto out_unref;
2751
2752 reserved_size = update->calc_fifo_size(update, num_hits);
2753 cmd_start = VMW_FIFO_RESERVE(update->dev_priv, reserved_size);
2754 if (!cmd_start) {
2755 ret = -ENOMEM;
2756 goto out_revert;
2757 }
2758
2759 cmd_next = cmd_start;
2760
2761 if (update->post_prepare) {
2762 curr_size = update->post_prepare(update, cmd_next);
2763 cmd_next += curr_size;
2764 submit_size += curr_size;
2765 }
2766
2767 if (update->pre_clip) {
2768 curr_size = update->pre_clip(update, cmd_next, num_hits);
2769 cmd_next += curr_size;
2770 submit_size += curr_size;
2771 }
2772
2773 bb.x1 = INT_MAX;
2774 bb.y1 = INT_MAX;
2775 bb.x2 = INT_MIN;
2776 bb.y2 = INT_MIN;
2777
2778 drm_atomic_helper_damage_iter_init(&iter, old_state, state);
2779 drm_atomic_for_each_plane_damage(&iter, &clip) {
2780 uint32_t fb_x = clip.x1;
2781 uint32_t fb_y = clip.y1;
2782
2783 vmw_du_translate_to_crtc(state, &clip);
2784 if (update->clip) {
2785 curr_size = update->clip(update, cmd_next, &clip, fb_x,
2786 fb_y);
2787 cmd_next += curr_size;
2788 submit_size += curr_size;
2789 }
2790 bb.x1 = min_t(int, bb.x1, clip.x1);
2791 bb.y1 = min_t(int, bb.y1, clip.y1);
2792 bb.x2 = max_t(int, bb.x2, clip.x2);
2793 bb.y2 = max_t(int, bb.y2, clip.y2);
2794 }
2795
2796 curr_size = update->post_clip(update, cmd_next, &bb);
2797 submit_size += curr_size;
2798
2799 if (reserved_size < submit_size)
2800 submit_size = 0;
2801
2802 vmw_fifo_commit(update->dev_priv, submit_size);
2803
2804 vmw_kms_helper_validation_finish(update->dev_priv, NULL, &val_ctx,
2805 update->out_fence, NULL);
2806 return ret;
2807
2808out_revert:
2809 vmw_validation_revert(&val_ctx);
2810
2811out_unref:
2812 vmw_validation_unref_lists(&val_ctx);
2813 return ret;
2814}