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/ttm/ttm_placement.h>
29
30 #include "vmwgfx_drv.h"
31 #include "vmwgfx_resource_priv.h"
32 #include "vmwgfx_so.h"
33 #include "vmwgfx_binding.h"
34 #include "vmw_surface_cache.h"
35 #include "device_include/svga3d_surfacedefs.h"
36
37 #define SVGA3D_FLAGS_64(upper32, lower32) (((uint64_t)upper32 << 32) | lower32)
38 #define SVGA3D_FLAGS_UPPER_32(svga3d_flags) (svga3d_flags >> 32)
39 #define SVGA3D_FLAGS_LOWER_32(svga3d_flags) \
40 (svga3d_flags & ((uint64_t)U32_MAX))
41
42 /**
43 * struct vmw_user_surface - User-space visible surface resource
44 *
45 * @prime: The TTM prime object.
46 * @base: The TTM base object handling user-space visibility.
47 * @srf: The surface metadata.
48 * @master: Master of the creating client. Used for security check.
49 */
50 struct vmw_user_surface {
51 struct ttm_prime_object prime;
52 struct vmw_surface srf;
53 struct drm_master *master;
54 };
55
56 /**
57 * struct vmw_surface_offset - Backing store mip level offset info
58 *
59 * @face: Surface face.
60 * @mip: Mip level.
61 * @bo_offset: Offset into backing store of this mip level.
62 *
63 */
64 struct vmw_surface_offset {
65 uint32_t face;
66 uint32_t mip;
67 uint32_t bo_offset;
68 };
69
70 /**
71 * struct vmw_surface_dirty - Surface dirty-tracker
72 * @cache: Cached layout information of the surface.
73 * @num_subres: Number of subresources.
74 * @boxes: Array of SVGA3dBoxes indicating dirty regions. One per subresource.
75 */
76 struct vmw_surface_dirty {
77 struct vmw_surface_cache cache;
78 u32 num_subres;
79 SVGA3dBox boxes[];
80 };
81
82 static void vmw_user_surface_free(struct vmw_resource *res);
83 static struct vmw_resource *
84 vmw_user_surface_base_to_res(struct ttm_base_object *base);
85 static int vmw_legacy_srf_bind(struct vmw_resource *res,
86 struct ttm_validate_buffer *val_buf);
87 static int vmw_legacy_srf_unbind(struct vmw_resource *res,
88 bool readback,
89 struct ttm_validate_buffer *val_buf);
90 static int vmw_legacy_srf_create(struct vmw_resource *res);
91 static int vmw_legacy_srf_destroy(struct vmw_resource *res);
92 static int vmw_gb_surface_create(struct vmw_resource *res);
93 static int vmw_gb_surface_bind(struct vmw_resource *res,
94 struct ttm_validate_buffer *val_buf);
95 static int vmw_gb_surface_unbind(struct vmw_resource *res,
96 bool readback,
97 struct ttm_validate_buffer *val_buf);
98 static int vmw_gb_surface_destroy(struct vmw_resource *res);
99 static int
100 vmw_gb_surface_define_internal(struct drm_device *dev,
101 struct drm_vmw_gb_surface_create_ext_req *req,
102 struct drm_vmw_gb_surface_create_rep *rep,
103 struct drm_file *file_priv);
104 static int
105 vmw_gb_surface_reference_internal(struct drm_device *dev,
106 struct drm_vmw_surface_arg *req,
107 struct drm_vmw_gb_surface_ref_ext_rep *rep,
108 struct drm_file *file_priv);
109
110 static void vmw_surface_dirty_free(struct vmw_resource *res);
111 static int vmw_surface_dirty_alloc(struct vmw_resource *res);
112 static int vmw_surface_dirty_sync(struct vmw_resource *res);
113 static void vmw_surface_dirty_range_add(struct vmw_resource *res, size_t start,
114 size_t end);
115 static int vmw_surface_clean(struct vmw_resource *res);
116
117 static const struct vmw_user_resource_conv user_surface_conv = {
118 .object_type = VMW_RES_SURFACE,
119 .base_obj_to_res = vmw_user_surface_base_to_res,
120 .res_free = vmw_user_surface_free
121 };
122
123 const struct vmw_user_resource_conv *user_surface_converter =
124 &user_surface_conv;
125
126 static const struct vmw_res_func vmw_legacy_surface_func = {
127 .res_type = vmw_res_surface,
128 .needs_backup = false,
129 .may_evict = true,
130 .prio = 1,
131 .dirty_prio = 1,
132 .type_name = "legacy surfaces",
133 .backup_placement = &vmw_srf_placement,
134 .create = &vmw_legacy_srf_create,
135 .destroy = &vmw_legacy_srf_destroy,
136 .bind = &vmw_legacy_srf_bind,
137 .unbind = &vmw_legacy_srf_unbind
138 };
139
140 static const struct vmw_res_func vmw_gb_surface_func = {
141 .res_type = vmw_res_surface,
142 .needs_backup = true,
143 .may_evict = true,
144 .prio = 1,
145 .dirty_prio = 2,
146 .type_name = "guest backed surfaces",
147 .backup_placement = &vmw_mob_placement,
148 .create = vmw_gb_surface_create,
149 .destroy = vmw_gb_surface_destroy,
150 .bind = vmw_gb_surface_bind,
151 .unbind = vmw_gb_surface_unbind,
152 .dirty_alloc = vmw_surface_dirty_alloc,
153 .dirty_free = vmw_surface_dirty_free,
154 .dirty_sync = vmw_surface_dirty_sync,
155 .dirty_range_add = vmw_surface_dirty_range_add,
156 .clean = vmw_surface_clean,
157 };
158
159 /*
160 * struct vmw_surface_dma - SVGA3D DMA command
161 */
162 struct vmw_surface_dma {
163 SVGA3dCmdHeader header;
164 SVGA3dCmdSurfaceDMA body;
165 SVGA3dCopyBox cb;
166 SVGA3dCmdSurfaceDMASuffix suffix;
167 };
168
169 /*
170 * struct vmw_surface_define - SVGA3D Surface Define command
171 */
172 struct vmw_surface_define {
173 SVGA3dCmdHeader header;
174 SVGA3dCmdDefineSurface body;
175 };
176
177 /*
178 * struct vmw_surface_destroy - SVGA3D Surface Destroy command
179 */
180 struct vmw_surface_destroy {
181 SVGA3dCmdHeader header;
182 SVGA3dCmdDestroySurface body;
183 };
184
185
186 /**
187 * vmw_surface_dma_size - Compute fifo size for a dma command.
188 *
189 * @srf: Pointer to a struct vmw_surface
190 *
191 * Computes the required size for a surface dma command for backup or
192 * restoration of the surface represented by @srf.
193 */
vmw_surface_dma_size(const struct vmw_surface * srf)194 static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf)
195 {
196 return srf->metadata.num_sizes * sizeof(struct vmw_surface_dma);
197 }
198
199
200 /**
201 * vmw_surface_define_size - Compute fifo size for a surface define command.
202 *
203 * @srf: Pointer to a struct vmw_surface
204 *
205 * Computes the required size for a surface define command for the definition
206 * of the surface represented by @srf.
207 */
vmw_surface_define_size(const struct vmw_surface * srf)208 static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf)
209 {
210 return sizeof(struct vmw_surface_define) + srf->metadata.num_sizes *
211 sizeof(SVGA3dSize);
212 }
213
214
215 /**
216 * vmw_surface_destroy_size - Compute fifo size for a surface destroy command.
217 *
218 * Computes the required size for a surface destroy command for the destruction
219 * of a hw surface.
220 */
vmw_surface_destroy_size(void)221 static inline uint32_t vmw_surface_destroy_size(void)
222 {
223 return sizeof(struct vmw_surface_destroy);
224 }
225
226 /**
227 * vmw_surface_destroy_encode - Encode a surface_destroy command.
228 *
229 * @id: The surface id
230 * @cmd_space: Pointer to memory area in which the commands should be encoded.
231 */
vmw_surface_destroy_encode(uint32_t id,void * cmd_space)232 static void vmw_surface_destroy_encode(uint32_t id,
233 void *cmd_space)
234 {
235 struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *)
236 cmd_space;
237
238 cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY;
239 cmd->header.size = sizeof(cmd->body);
240 cmd->body.sid = id;
241 }
242
243 /**
244 * vmw_surface_define_encode - Encode a surface_define command.
245 *
246 * @srf: Pointer to a struct vmw_surface object.
247 * @cmd_space: Pointer to memory area in which the commands should be encoded.
248 */
vmw_surface_define_encode(const struct vmw_surface * srf,void * cmd_space)249 static void vmw_surface_define_encode(const struct vmw_surface *srf,
250 void *cmd_space)
251 {
252 struct vmw_surface_define *cmd = (struct vmw_surface_define *)
253 cmd_space;
254 struct drm_vmw_size *src_size;
255 SVGA3dSize *cmd_size;
256 uint32_t cmd_len;
257 int i;
258
259 cmd_len = sizeof(cmd->body) + srf->metadata.num_sizes *
260 sizeof(SVGA3dSize);
261
262 cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE;
263 cmd->header.size = cmd_len;
264 cmd->body.sid = srf->res.id;
265 /*
266 * Downcast of surfaceFlags, was upcasted when received from user-space,
267 * since driver internally stores as 64 bit.
268 * For legacy surface define only 32 bit flag is supported.
269 */
270 cmd->body.surfaceFlags = (SVGA3dSurface1Flags)srf->metadata.flags;
271 cmd->body.format = srf->metadata.format;
272 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
273 cmd->body.face[i].numMipLevels = srf->metadata.mip_levels[i];
274
275 cmd += 1;
276 cmd_size = (SVGA3dSize *) cmd;
277 src_size = srf->metadata.sizes;
278
279 for (i = 0; i < srf->metadata.num_sizes; ++i, cmd_size++, src_size++) {
280 cmd_size->width = src_size->width;
281 cmd_size->height = src_size->height;
282 cmd_size->depth = src_size->depth;
283 }
284 }
285
286 /**
287 * vmw_surface_dma_encode - Encode a surface_dma command.
288 *
289 * @srf: Pointer to a struct vmw_surface object.
290 * @cmd_space: Pointer to memory area in which the commands should be encoded.
291 * @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents
292 * should be placed or read from.
293 * @to_surface: Boolean whether to DMA to the surface or from the surface.
294 */
vmw_surface_dma_encode(struct vmw_surface * srf,void * cmd_space,const SVGAGuestPtr * ptr,bool to_surface)295 static void vmw_surface_dma_encode(struct vmw_surface *srf,
296 void *cmd_space,
297 const SVGAGuestPtr *ptr,
298 bool to_surface)
299 {
300 uint32_t i;
301 struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space;
302 const struct SVGA3dSurfaceDesc *desc =
303 vmw_surface_get_desc(srf->metadata.format);
304
305 for (i = 0; i < srf->metadata.num_sizes; ++i) {
306 SVGA3dCmdHeader *header = &cmd->header;
307 SVGA3dCmdSurfaceDMA *body = &cmd->body;
308 SVGA3dCopyBox *cb = &cmd->cb;
309 SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix;
310 const struct vmw_surface_offset *cur_offset = &srf->offsets[i];
311 const struct drm_vmw_size *cur_size = &srf->metadata.sizes[i];
312
313 header->id = SVGA_3D_CMD_SURFACE_DMA;
314 header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix);
315
316 body->guest.ptr = *ptr;
317 body->guest.ptr.offset += cur_offset->bo_offset;
318 body->guest.pitch = vmw_surface_calculate_pitch(desc, cur_size);
319 body->host.sid = srf->res.id;
320 body->host.face = cur_offset->face;
321 body->host.mipmap = cur_offset->mip;
322 body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM :
323 SVGA3D_READ_HOST_VRAM);
324 cb->x = 0;
325 cb->y = 0;
326 cb->z = 0;
327 cb->srcx = 0;
328 cb->srcy = 0;
329 cb->srcz = 0;
330 cb->w = cur_size->width;
331 cb->h = cur_size->height;
332 cb->d = cur_size->depth;
333
334 suffix->suffixSize = sizeof(*suffix);
335 suffix->maximumOffset =
336 vmw_surface_get_image_buffer_size(desc, cur_size,
337 body->guest.pitch);
338 suffix->flags.discard = 0;
339 suffix->flags.unsynchronized = 0;
340 suffix->flags.reserved = 0;
341 ++cmd;
342 }
343 };
344
345
346 /**
347 * vmw_hw_surface_destroy - destroy a Device surface
348 *
349 * @res: Pointer to a struct vmw_resource embedded in a struct
350 * vmw_surface.
351 *
352 * Destroys a the device surface associated with a struct vmw_surface if
353 * any, and adjusts resource count accordingly.
354 */
vmw_hw_surface_destroy(struct vmw_resource * res)355 static void vmw_hw_surface_destroy(struct vmw_resource *res)
356 {
357
358 struct vmw_private *dev_priv = res->dev_priv;
359 void *cmd;
360
361 if (res->func->destroy == vmw_gb_surface_destroy) {
362 (void) vmw_gb_surface_destroy(res);
363 return;
364 }
365
366 if (res->id != -1) {
367
368 cmd = VMW_CMD_RESERVE(dev_priv, vmw_surface_destroy_size());
369 if (unlikely(!cmd))
370 return;
371
372 vmw_surface_destroy_encode(res->id, cmd);
373 vmw_cmd_commit(dev_priv, vmw_surface_destroy_size());
374
375 /*
376 * used_memory_size_atomic, or separate lock
377 * to avoid taking dev_priv::cmdbuf_mutex in
378 * the destroy path.
379 */
380
381 mutex_lock(&dev_priv->cmdbuf_mutex);
382 dev_priv->used_memory_size -= res->backup_size;
383 mutex_unlock(&dev_priv->cmdbuf_mutex);
384 }
385 }
386
387 /**
388 * vmw_legacy_srf_create - Create a device surface as part of the
389 * resource validation process.
390 *
391 * @res: Pointer to a struct vmw_surface.
392 *
393 * If the surface doesn't have a hw id.
394 *
395 * Returns -EBUSY if there wasn't sufficient device resources to
396 * complete the validation. Retry after freeing up resources.
397 *
398 * May return other errors if the kernel is out of guest resources.
399 */
vmw_legacy_srf_create(struct vmw_resource * res)400 static int vmw_legacy_srf_create(struct vmw_resource *res)
401 {
402 struct vmw_private *dev_priv = res->dev_priv;
403 struct vmw_surface *srf;
404 uint32_t submit_size;
405 uint8_t *cmd;
406 int ret;
407
408 if (likely(res->id != -1))
409 return 0;
410
411 srf = vmw_res_to_srf(res);
412 if (unlikely(dev_priv->used_memory_size + res->backup_size >=
413 dev_priv->memory_size))
414 return -EBUSY;
415
416 /*
417 * Alloc id for the resource.
418 */
419
420 ret = vmw_resource_alloc_id(res);
421 if (unlikely(ret != 0)) {
422 DRM_ERROR("Failed to allocate a surface id.\n");
423 goto out_no_id;
424 }
425
426 if (unlikely(res->id >= SVGA3D_HB_MAX_SURFACE_IDS)) {
427 ret = -EBUSY;
428 goto out_no_fifo;
429 }
430
431 /*
432 * Encode surface define- commands.
433 */
434
435 submit_size = vmw_surface_define_size(srf);
436 cmd = VMW_CMD_RESERVE(dev_priv, submit_size);
437 if (unlikely(!cmd)) {
438 ret = -ENOMEM;
439 goto out_no_fifo;
440 }
441
442 vmw_surface_define_encode(srf, cmd);
443 vmw_cmd_commit(dev_priv, submit_size);
444 vmw_fifo_resource_inc(dev_priv);
445
446 /*
447 * Surface memory usage accounting.
448 */
449
450 dev_priv->used_memory_size += res->backup_size;
451 return 0;
452
453 out_no_fifo:
454 vmw_resource_release_id(res);
455 out_no_id:
456 return ret;
457 }
458
459 /**
460 * vmw_legacy_srf_dma - Copy backup data to or from a legacy surface.
461 *
462 * @res: Pointer to a struct vmw_res embedded in a struct
463 * vmw_surface.
464 * @val_buf: Pointer to a struct ttm_validate_buffer containing
465 * information about the backup buffer.
466 * @bind: Boolean wether to DMA to the surface.
467 *
468 * Transfer backup data to or from a legacy surface as part of the
469 * validation process.
470 * May return other errors if the kernel is out of guest resources.
471 * The backup buffer will be fenced or idle upon successful completion,
472 * and if the surface needs persistent backup storage, the backup buffer
473 * will also be returned reserved iff @bind is true.
474 */
vmw_legacy_srf_dma(struct vmw_resource * res,struct ttm_validate_buffer * val_buf,bool bind)475 static int vmw_legacy_srf_dma(struct vmw_resource *res,
476 struct ttm_validate_buffer *val_buf,
477 bool bind)
478 {
479 SVGAGuestPtr ptr;
480 struct vmw_fence_obj *fence;
481 uint32_t submit_size;
482 struct vmw_surface *srf = vmw_res_to_srf(res);
483 uint8_t *cmd;
484 struct vmw_private *dev_priv = res->dev_priv;
485
486 BUG_ON(!val_buf->bo);
487 submit_size = vmw_surface_dma_size(srf);
488 cmd = VMW_CMD_RESERVE(dev_priv, submit_size);
489 if (unlikely(!cmd))
490 return -ENOMEM;
491
492 vmw_bo_get_guest_ptr(val_buf->bo, &ptr);
493 vmw_surface_dma_encode(srf, cmd, &ptr, bind);
494
495 vmw_cmd_commit(dev_priv, submit_size);
496
497 /*
498 * Create a fence object and fence the backup buffer.
499 */
500
501 (void) vmw_execbuf_fence_commands(NULL, dev_priv,
502 &fence, NULL);
503
504 vmw_bo_fence_single(val_buf->bo, fence);
505
506 if (likely(fence != NULL))
507 vmw_fence_obj_unreference(&fence);
508
509 return 0;
510 }
511
512 /**
513 * vmw_legacy_srf_bind - Perform a legacy surface bind as part of the
514 * surface validation process.
515 *
516 * @res: Pointer to a struct vmw_res embedded in a struct
517 * vmw_surface.
518 * @val_buf: Pointer to a struct ttm_validate_buffer containing
519 * information about the backup buffer.
520 *
521 * This function will copy backup data to the surface if the
522 * backup buffer is dirty.
523 */
vmw_legacy_srf_bind(struct vmw_resource * res,struct ttm_validate_buffer * val_buf)524 static int vmw_legacy_srf_bind(struct vmw_resource *res,
525 struct ttm_validate_buffer *val_buf)
526 {
527 if (!res->backup_dirty)
528 return 0;
529
530 return vmw_legacy_srf_dma(res, val_buf, true);
531 }
532
533
534 /**
535 * vmw_legacy_srf_unbind - Perform a legacy surface unbind as part of the
536 * surface eviction process.
537 *
538 * @res: Pointer to a struct vmw_res embedded in a struct
539 * vmw_surface.
540 * @readback: Readback - only true if dirty
541 * @val_buf: Pointer to a struct ttm_validate_buffer containing
542 * information about the backup buffer.
543 *
544 * This function will copy backup data from the surface.
545 */
vmw_legacy_srf_unbind(struct vmw_resource * res,bool readback,struct ttm_validate_buffer * val_buf)546 static int vmw_legacy_srf_unbind(struct vmw_resource *res,
547 bool readback,
548 struct ttm_validate_buffer *val_buf)
549 {
550 if (unlikely(readback))
551 return vmw_legacy_srf_dma(res, val_buf, false);
552 return 0;
553 }
554
555 /**
556 * vmw_legacy_srf_destroy - Destroy a device surface as part of a
557 * resource eviction process.
558 *
559 * @res: Pointer to a struct vmw_res embedded in a struct
560 * vmw_surface.
561 */
vmw_legacy_srf_destroy(struct vmw_resource * res)562 static int vmw_legacy_srf_destroy(struct vmw_resource *res)
563 {
564 struct vmw_private *dev_priv = res->dev_priv;
565 uint32_t submit_size;
566 uint8_t *cmd;
567
568 BUG_ON(res->id == -1);
569
570 /*
571 * Encode the dma- and surface destroy commands.
572 */
573
574 submit_size = vmw_surface_destroy_size();
575 cmd = VMW_CMD_RESERVE(dev_priv, submit_size);
576 if (unlikely(!cmd))
577 return -ENOMEM;
578
579 vmw_surface_destroy_encode(res->id, cmd);
580 vmw_cmd_commit(dev_priv, submit_size);
581
582 /*
583 * Surface memory usage accounting.
584 */
585
586 dev_priv->used_memory_size -= res->backup_size;
587
588 /*
589 * Release the surface ID.
590 */
591
592 vmw_resource_release_id(res);
593 vmw_fifo_resource_dec(dev_priv);
594
595 return 0;
596 }
597
598
599 /**
600 * vmw_surface_init - initialize a struct vmw_surface
601 *
602 * @dev_priv: Pointer to a device private struct.
603 * @srf: Pointer to the struct vmw_surface to initialize.
604 * @res_free: Pointer to a resource destructor used to free
605 * the object.
606 */
vmw_surface_init(struct vmw_private * dev_priv,struct vmw_surface * srf,void (* res_free)(struct vmw_resource * res))607 static int vmw_surface_init(struct vmw_private *dev_priv,
608 struct vmw_surface *srf,
609 void (*res_free) (struct vmw_resource *res))
610 {
611 int ret;
612 struct vmw_resource *res = &srf->res;
613
614 BUG_ON(!res_free);
615 ret = vmw_resource_init(dev_priv, res, true, res_free,
616 (dev_priv->has_mob) ? &vmw_gb_surface_func :
617 &vmw_legacy_surface_func);
618
619 if (unlikely(ret != 0)) {
620 res_free(res);
621 return ret;
622 }
623
624 /*
625 * The surface won't be visible to hardware until a
626 * surface validate.
627 */
628
629 INIT_LIST_HEAD(&srf->view_list);
630 res->hw_destroy = vmw_hw_surface_destroy;
631 return ret;
632 }
633
634 /**
635 * vmw_user_surface_base_to_res - TTM base object to resource converter for
636 * user visible surfaces
637 *
638 * @base: Pointer to a TTM base object
639 *
640 * Returns the struct vmw_resource embedded in a struct vmw_surface
641 * for the user-visible object identified by the TTM base object @base.
642 */
643 static struct vmw_resource *
vmw_user_surface_base_to_res(struct ttm_base_object * base)644 vmw_user_surface_base_to_res(struct ttm_base_object *base)
645 {
646 return &(container_of(base, struct vmw_user_surface,
647 prime.base)->srf.res);
648 }
649
650 /**
651 * vmw_user_surface_free - User visible surface resource destructor
652 *
653 * @res: A struct vmw_resource embedded in a struct vmw_surface.
654 */
vmw_user_surface_free(struct vmw_resource * res)655 static void vmw_user_surface_free(struct vmw_resource *res)
656 {
657 struct vmw_surface *srf = vmw_res_to_srf(res);
658 struct vmw_user_surface *user_srf =
659 container_of(srf, struct vmw_user_surface, srf);
660
661 WARN_ON_ONCE(res->dirty);
662 if (user_srf->master)
663 drm_master_put(&user_srf->master);
664 kfree(srf->offsets);
665 kfree(srf->metadata.sizes);
666 kfree(srf->snooper.image);
667 ttm_prime_object_kfree(user_srf, prime);
668 }
669
670 /**
671 * vmw_user_surface_base_release - User visible surface TTM base object destructor
672 *
673 * @p_base: Pointer to a pointer to a TTM base object
674 * embedded in a struct vmw_user_surface.
675 *
676 * Drops the base object's reference on its resource, and the
677 * pointer pointed to by *p_base is set to NULL.
678 */
vmw_user_surface_base_release(struct ttm_base_object ** p_base)679 static void vmw_user_surface_base_release(struct ttm_base_object **p_base)
680 {
681 struct ttm_base_object *base = *p_base;
682 struct vmw_user_surface *user_srf =
683 container_of(base, struct vmw_user_surface, prime.base);
684 struct vmw_resource *res = &user_srf->srf.res;
685
686 if (base->shareable && res && res->backup)
687 drm_gem_object_put(&res->backup->base.base);
688
689 *p_base = NULL;
690 vmw_resource_unreference(&res);
691 }
692
693 /**
694 * vmw_surface_destroy_ioctl - Ioctl function implementing
695 * the user surface destroy functionality.
696 *
697 * @dev: Pointer to a struct drm_device.
698 * @data: Pointer to data copied from / to user-space.
699 * @file_priv: Pointer to a drm file private structure.
700 */
vmw_surface_destroy_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)701 int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
702 struct drm_file *file_priv)
703 {
704 struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data;
705 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
706
707 return ttm_ref_object_base_unref(tfile, arg->sid);
708 }
709
710 /**
711 * vmw_surface_define_ioctl - Ioctl function implementing
712 * the user surface define functionality.
713 *
714 * @dev: Pointer to a struct drm_device.
715 * @data: Pointer to data copied from / to user-space.
716 * @file_priv: Pointer to a drm file private structure.
717 */
vmw_surface_define_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)718 int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
719 struct drm_file *file_priv)
720 {
721 struct vmw_private *dev_priv = vmw_priv(dev);
722 struct vmw_user_surface *user_srf;
723 struct vmw_surface *srf;
724 struct vmw_surface_metadata *metadata;
725 struct vmw_resource *res;
726 struct vmw_resource *tmp;
727 union drm_vmw_surface_create_arg *arg =
728 (union drm_vmw_surface_create_arg *)data;
729 struct drm_vmw_surface_create_req *req = &arg->req;
730 struct drm_vmw_surface_arg *rep = &arg->rep;
731 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
732 int ret;
733 int i, j;
734 uint32_t cur_bo_offset;
735 struct drm_vmw_size *cur_size;
736 struct vmw_surface_offset *cur_offset;
737 uint32_t num_sizes;
738 const SVGA3dSurfaceDesc *desc;
739
740 num_sizes = 0;
741 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
742 if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS)
743 return -EINVAL;
744 num_sizes += req->mip_levels[i];
745 }
746
747 if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS ||
748 num_sizes == 0)
749 return -EINVAL;
750
751 desc = vmw_surface_get_desc(req->format);
752 if (unlikely(desc->blockDesc == SVGA3DBLOCKDESC_NONE)) {
753 VMW_DEBUG_USER("Invalid format %d for surface creation.\n",
754 req->format);
755 return -EINVAL;
756 }
757
758 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
759 if (unlikely(!user_srf)) {
760 ret = -ENOMEM;
761 goto out_unlock;
762 }
763
764 srf = &user_srf->srf;
765 metadata = &srf->metadata;
766 res = &srf->res;
767
768 /* Driver internally stores as 64-bit flags */
769 metadata->flags = (SVGA3dSurfaceAllFlags)req->flags;
770 metadata->format = req->format;
771 metadata->scanout = req->scanout;
772
773 memcpy(metadata->mip_levels, req->mip_levels,
774 sizeof(metadata->mip_levels));
775 metadata->num_sizes = num_sizes;
776 metadata->sizes =
777 memdup_user((struct drm_vmw_size __user *)(unsigned long)
778 req->size_addr,
779 sizeof(*metadata->sizes) * metadata->num_sizes);
780 if (IS_ERR(metadata->sizes)) {
781 ret = PTR_ERR(metadata->sizes);
782 goto out_no_sizes;
783 }
784 srf->offsets = kmalloc_array(metadata->num_sizes, sizeof(*srf->offsets),
785 GFP_KERNEL);
786 if (unlikely(!srf->offsets)) {
787 ret = -ENOMEM;
788 goto out_no_offsets;
789 }
790
791 metadata->base_size = *srf->metadata.sizes;
792 metadata->autogen_filter = SVGA3D_TEX_FILTER_NONE;
793 metadata->multisample_count = 0;
794 metadata->multisample_pattern = SVGA3D_MS_PATTERN_NONE;
795 metadata->quality_level = SVGA3D_MS_QUALITY_NONE;
796
797 cur_bo_offset = 0;
798 cur_offset = srf->offsets;
799 cur_size = metadata->sizes;
800
801 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
802 for (j = 0; j < metadata->mip_levels[i]; ++j) {
803 uint32_t stride = vmw_surface_calculate_pitch(
804 desc, cur_size);
805
806 cur_offset->face = i;
807 cur_offset->mip = j;
808 cur_offset->bo_offset = cur_bo_offset;
809 cur_bo_offset += vmw_surface_get_image_buffer_size
810 (desc, cur_size, stride);
811 ++cur_offset;
812 ++cur_size;
813 }
814 }
815 res->backup_size = cur_bo_offset;
816 if (metadata->scanout &&
817 metadata->num_sizes == 1 &&
818 metadata->sizes[0].width == 64 &&
819 metadata->sizes[0].height == 64 &&
820 metadata->format == SVGA3D_A8R8G8B8) {
821
822 srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL);
823 if (!srf->snooper.image) {
824 DRM_ERROR("Failed to allocate cursor_image\n");
825 ret = -ENOMEM;
826 goto out_no_copy;
827 }
828 } else {
829 srf->snooper.image = NULL;
830 }
831
832 user_srf->prime.base.shareable = false;
833 user_srf->prime.base.tfile = NULL;
834 if (drm_is_primary_client(file_priv))
835 user_srf->master = drm_file_get_master(file_priv);
836
837 /**
838 * From this point, the generic resource management functions
839 * destroy the object on failure.
840 */
841
842 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
843 if (unlikely(ret != 0))
844 goto out_unlock;
845
846 /*
847 * A gb-aware client referencing a shared surface will
848 * expect a backup buffer to be present.
849 */
850 if (dev_priv->has_mob && req->shareable) {
851 uint32_t backup_handle;
852
853 ret = vmw_gem_object_create_with_handle(dev_priv,
854 file_priv,
855 res->backup_size,
856 &backup_handle,
857 &res->backup);
858 if (unlikely(ret != 0)) {
859 vmw_resource_unreference(&res);
860 goto out_unlock;
861 }
862 vmw_bo_reference(res->backup);
863 drm_gem_object_get(&res->backup->base.base);
864 }
865
866 tmp = vmw_resource_reference(&srf->res);
867 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
868 req->shareable, VMW_RES_SURFACE,
869 &vmw_user_surface_base_release);
870
871 if (unlikely(ret != 0)) {
872 vmw_resource_unreference(&tmp);
873 vmw_resource_unreference(&res);
874 goto out_unlock;
875 }
876
877 rep->sid = user_srf->prime.base.handle;
878 vmw_resource_unreference(&res);
879
880 return 0;
881 out_no_copy:
882 kfree(srf->offsets);
883 out_no_offsets:
884 kfree(metadata->sizes);
885 out_no_sizes:
886 ttm_prime_object_kfree(user_srf, prime);
887 out_unlock:
888 return ret;
889 }
890
891
892 static int
vmw_surface_handle_reference(struct vmw_private * dev_priv,struct drm_file * file_priv,uint32_t u_handle,enum drm_vmw_handle_type handle_type,struct ttm_base_object ** base_p)893 vmw_surface_handle_reference(struct vmw_private *dev_priv,
894 struct drm_file *file_priv,
895 uint32_t u_handle,
896 enum drm_vmw_handle_type handle_type,
897 struct ttm_base_object **base_p)
898 {
899 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
900 struct vmw_user_surface *user_srf;
901 uint32_t handle;
902 struct ttm_base_object *base;
903 int ret;
904
905 if (handle_type == DRM_VMW_HANDLE_PRIME) {
906 ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle);
907 if (unlikely(ret != 0))
908 return ret;
909 } else {
910 handle = u_handle;
911 }
912
913 ret = -EINVAL;
914 base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle);
915 if (unlikely(!base)) {
916 VMW_DEBUG_USER("Could not find surface to reference.\n");
917 goto out_no_lookup;
918 }
919
920 if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE)) {
921 VMW_DEBUG_USER("Referenced object is not a surface.\n");
922 goto out_bad_resource;
923 }
924 if (handle_type != DRM_VMW_HANDLE_PRIME) {
925 bool require_exist = false;
926
927 user_srf = container_of(base, struct vmw_user_surface,
928 prime.base);
929
930 /* Error out if we are unauthenticated primary */
931 if (drm_is_primary_client(file_priv) &&
932 !file_priv->authenticated) {
933 ret = -EACCES;
934 goto out_bad_resource;
935 }
936
937 /*
938 * Make sure the surface creator has the same
939 * authenticating master, or is already registered with us.
940 */
941 if (drm_is_primary_client(file_priv) &&
942 user_srf->master != file_priv->master)
943 require_exist = true;
944
945 if (unlikely(drm_is_render_client(file_priv)))
946 require_exist = true;
947
948 ret = ttm_ref_object_add(tfile, base, NULL, require_exist);
949 if (unlikely(ret != 0)) {
950 DRM_ERROR("Could not add a reference to a surface.\n");
951 goto out_bad_resource;
952 }
953 }
954
955 *base_p = base;
956 return 0;
957
958 out_bad_resource:
959 ttm_base_object_unref(&base);
960 out_no_lookup:
961 if (handle_type == DRM_VMW_HANDLE_PRIME)
962 (void) ttm_ref_object_base_unref(tfile, handle);
963
964 return ret;
965 }
966
967 /**
968 * vmw_surface_reference_ioctl - Ioctl function implementing
969 * the user surface reference functionality.
970 *
971 * @dev: Pointer to a struct drm_device.
972 * @data: Pointer to data copied from / to user-space.
973 * @file_priv: Pointer to a drm file private structure.
974 */
vmw_surface_reference_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)975 int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
976 struct drm_file *file_priv)
977 {
978 struct vmw_private *dev_priv = vmw_priv(dev);
979 union drm_vmw_surface_reference_arg *arg =
980 (union drm_vmw_surface_reference_arg *)data;
981 struct drm_vmw_surface_arg *req = &arg->req;
982 struct drm_vmw_surface_create_req *rep = &arg->rep;
983 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
984 struct vmw_surface *srf;
985 struct vmw_user_surface *user_srf;
986 struct drm_vmw_size __user *user_sizes;
987 struct ttm_base_object *base;
988 int ret;
989
990 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
991 req->handle_type, &base);
992 if (unlikely(ret != 0))
993 return ret;
994
995 user_srf = container_of(base, struct vmw_user_surface, prime.base);
996 srf = &user_srf->srf;
997
998 /* Downcast of flags when sending back to user space */
999 rep->flags = (uint32_t)srf->metadata.flags;
1000 rep->format = srf->metadata.format;
1001 memcpy(rep->mip_levels, srf->metadata.mip_levels,
1002 sizeof(srf->metadata.mip_levels));
1003 user_sizes = (struct drm_vmw_size __user *)(unsigned long)
1004 rep->size_addr;
1005
1006 if (user_sizes)
1007 ret = copy_to_user(user_sizes, &srf->metadata.base_size,
1008 sizeof(srf->metadata.base_size));
1009 if (unlikely(ret != 0)) {
1010 VMW_DEBUG_USER("copy_to_user failed %p %u\n", user_sizes,
1011 srf->metadata.num_sizes);
1012 ttm_ref_object_base_unref(tfile, base->handle);
1013 ret = -EFAULT;
1014 }
1015
1016 ttm_base_object_unref(&base);
1017
1018 return ret;
1019 }
1020
1021 /**
1022 * vmw_gb_surface_create - Encode a surface_define command.
1023 *
1024 * @res: Pointer to a struct vmw_resource embedded in a struct
1025 * vmw_surface.
1026 */
vmw_gb_surface_create(struct vmw_resource * res)1027 static int vmw_gb_surface_create(struct vmw_resource *res)
1028 {
1029 struct vmw_private *dev_priv = res->dev_priv;
1030 struct vmw_surface *srf = vmw_res_to_srf(res);
1031 struct vmw_surface_metadata *metadata = &srf->metadata;
1032 uint32_t cmd_len, cmd_id, submit_len;
1033 int ret;
1034 struct {
1035 SVGA3dCmdHeader header;
1036 SVGA3dCmdDefineGBSurface body;
1037 } *cmd;
1038 struct {
1039 SVGA3dCmdHeader header;
1040 SVGA3dCmdDefineGBSurface_v2 body;
1041 } *cmd2;
1042 struct {
1043 SVGA3dCmdHeader header;
1044 SVGA3dCmdDefineGBSurface_v3 body;
1045 } *cmd3;
1046 struct {
1047 SVGA3dCmdHeader header;
1048 SVGA3dCmdDefineGBSurface_v4 body;
1049 } *cmd4;
1050
1051 if (likely(res->id != -1))
1052 return 0;
1053
1054 vmw_fifo_resource_inc(dev_priv);
1055 ret = vmw_resource_alloc_id(res);
1056 if (unlikely(ret != 0)) {
1057 DRM_ERROR("Failed to allocate a surface id.\n");
1058 goto out_no_id;
1059 }
1060
1061 if (unlikely(res->id >= VMWGFX_NUM_GB_SURFACE)) {
1062 ret = -EBUSY;
1063 goto out_no_fifo;
1064 }
1065
1066 if (has_sm5_context(dev_priv) && metadata->array_size > 0) {
1067 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V4;
1068 cmd_len = sizeof(cmd4->body);
1069 submit_len = sizeof(*cmd4);
1070 } else if (has_sm4_1_context(dev_priv) && metadata->array_size > 0) {
1071 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V3;
1072 cmd_len = sizeof(cmd3->body);
1073 submit_len = sizeof(*cmd3);
1074 } else if (metadata->array_size > 0) {
1075 /* VMW_SM_4 support verified at creation time. */
1076 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V2;
1077 cmd_len = sizeof(cmd2->body);
1078 submit_len = sizeof(*cmd2);
1079 } else {
1080 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE;
1081 cmd_len = sizeof(cmd->body);
1082 submit_len = sizeof(*cmd);
1083 }
1084
1085 cmd = VMW_CMD_RESERVE(dev_priv, submit_len);
1086 cmd2 = (typeof(cmd2))cmd;
1087 cmd3 = (typeof(cmd3))cmd;
1088 cmd4 = (typeof(cmd4))cmd;
1089 if (unlikely(!cmd)) {
1090 ret = -ENOMEM;
1091 goto out_no_fifo;
1092 }
1093
1094 if (has_sm5_context(dev_priv) && metadata->array_size > 0) {
1095 cmd4->header.id = cmd_id;
1096 cmd4->header.size = cmd_len;
1097 cmd4->body.sid = srf->res.id;
1098 cmd4->body.surfaceFlags = metadata->flags;
1099 cmd4->body.format = metadata->format;
1100 cmd4->body.numMipLevels = metadata->mip_levels[0];
1101 cmd4->body.multisampleCount = metadata->multisample_count;
1102 cmd4->body.multisamplePattern = metadata->multisample_pattern;
1103 cmd4->body.qualityLevel = metadata->quality_level;
1104 cmd4->body.autogenFilter = metadata->autogen_filter;
1105 cmd4->body.size.width = metadata->base_size.width;
1106 cmd4->body.size.height = metadata->base_size.height;
1107 cmd4->body.size.depth = metadata->base_size.depth;
1108 cmd4->body.arraySize = metadata->array_size;
1109 cmd4->body.bufferByteStride = metadata->buffer_byte_stride;
1110 } else if (has_sm4_1_context(dev_priv) && metadata->array_size > 0) {
1111 cmd3->header.id = cmd_id;
1112 cmd3->header.size = cmd_len;
1113 cmd3->body.sid = srf->res.id;
1114 cmd3->body.surfaceFlags = metadata->flags;
1115 cmd3->body.format = metadata->format;
1116 cmd3->body.numMipLevels = metadata->mip_levels[0];
1117 cmd3->body.multisampleCount = metadata->multisample_count;
1118 cmd3->body.multisamplePattern = metadata->multisample_pattern;
1119 cmd3->body.qualityLevel = metadata->quality_level;
1120 cmd3->body.autogenFilter = metadata->autogen_filter;
1121 cmd3->body.size.width = metadata->base_size.width;
1122 cmd3->body.size.height = metadata->base_size.height;
1123 cmd3->body.size.depth = metadata->base_size.depth;
1124 cmd3->body.arraySize = metadata->array_size;
1125 } else if (metadata->array_size > 0) {
1126 cmd2->header.id = cmd_id;
1127 cmd2->header.size = cmd_len;
1128 cmd2->body.sid = srf->res.id;
1129 cmd2->body.surfaceFlags = metadata->flags;
1130 cmd2->body.format = metadata->format;
1131 cmd2->body.numMipLevels = metadata->mip_levels[0];
1132 cmd2->body.multisampleCount = metadata->multisample_count;
1133 cmd2->body.autogenFilter = metadata->autogen_filter;
1134 cmd2->body.size.width = metadata->base_size.width;
1135 cmd2->body.size.height = metadata->base_size.height;
1136 cmd2->body.size.depth = metadata->base_size.depth;
1137 cmd2->body.arraySize = metadata->array_size;
1138 } else {
1139 cmd->header.id = cmd_id;
1140 cmd->header.size = cmd_len;
1141 cmd->body.sid = srf->res.id;
1142 cmd->body.surfaceFlags = metadata->flags;
1143 cmd->body.format = metadata->format;
1144 cmd->body.numMipLevels = metadata->mip_levels[0];
1145 cmd->body.multisampleCount = metadata->multisample_count;
1146 cmd->body.autogenFilter = metadata->autogen_filter;
1147 cmd->body.size.width = metadata->base_size.width;
1148 cmd->body.size.height = metadata->base_size.height;
1149 cmd->body.size.depth = metadata->base_size.depth;
1150 }
1151
1152 vmw_cmd_commit(dev_priv, submit_len);
1153
1154 return 0;
1155
1156 out_no_fifo:
1157 vmw_resource_release_id(res);
1158 out_no_id:
1159 vmw_fifo_resource_dec(dev_priv);
1160 return ret;
1161 }
1162
1163
vmw_gb_surface_bind(struct vmw_resource * res,struct ttm_validate_buffer * val_buf)1164 static int vmw_gb_surface_bind(struct vmw_resource *res,
1165 struct ttm_validate_buffer *val_buf)
1166 {
1167 struct vmw_private *dev_priv = res->dev_priv;
1168 struct {
1169 SVGA3dCmdHeader header;
1170 SVGA3dCmdBindGBSurface body;
1171 } *cmd1;
1172 struct {
1173 SVGA3dCmdHeader header;
1174 SVGA3dCmdUpdateGBSurface body;
1175 } *cmd2;
1176 uint32_t submit_size;
1177 struct ttm_buffer_object *bo = val_buf->bo;
1178
1179 BUG_ON(bo->resource->mem_type != VMW_PL_MOB);
1180
1181 submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0);
1182
1183 cmd1 = VMW_CMD_RESERVE(dev_priv, submit_size);
1184 if (unlikely(!cmd1))
1185 return -ENOMEM;
1186
1187 cmd1->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
1188 cmd1->header.size = sizeof(cmd1->body);
1189 cmd1->body.sid = res->id;
1190 cmd1->body.mobid = bo->resource->start;
1191 if (res->backup_dirty) {
1192 cmd2 = (void *) &cmd1[1];
1193 cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE;
1194 cmd2->header.size = sizeof(cmd2->body);
1195 cmd2->body.sid = res->id;
1196 }
1197 vmw_cmd_commit(dev_priv, submit_size);
1198
1199 if (res->backup->dirty && res->backup_dirty) {
1200 /* We've just made a full upload. Cear dirty regions. */
1201 vmw_bo_dirty_clear_res(res);
1202 }
1203
1204 res->backup_dirty = false;
1205
1206 return 0;
1207 }
1208
vmw_gb_surface_unbind(struct vmw_resource * res,bool readback,struct ttm_validate_buffer * val_buf)1209 static int vmw_gb_surface_unbind(struct vmw_resource *res,
1210 bool readback,
1211 struct ttm_validate_buffer *val_buf)
1212 {
1213 struct vmw_private *dev_priv = res->dev_priv;
1214 struct ttm_buffer_object *bo = val_buf->bo;
1215 struct vmw_fence_obj *fence;
1216
1217 struct {
1218 SVGA3dCmdHeader header;
1219 SVGA3dCmdReadbackGBSurface body;
1220 } *cmd1;
1221 struct {
1222 SVGA3dCmdHeader header;
1223 SVGA3dCmdInvalidateGBSurface body;
1224 } *cmd2;
1225 struct {
1226 SVGA3dCmdHeader header;
1227 SVGA3dCmdBindGBSurface body;
1228 } *cmd3;
1229 uint32_t submit_size;
1230 uint8_t *cmd;
1231
1232
1233 BUG_ON(bo->resource->mem_type != VMW_PL_MOB);
1234
1235 submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2));
1236 cmd = VMW_CMD_RESERVE(dev_priv, submit_size);
1237 if (unlikely(!cmd))
1238 return -ENOMEM;
1239
1240 if (readback) {
1241 cmd1 = (void *) cmd;
1242 cmd1->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE;
1243 cmd1->header.size = sizeof(cmd1->body);
1244 cmd1->body.sid = res->id;
1245 cmd3 = (void *) &cmd1[1];
1246 } else {
1247 cmd2 = (void *) cmd;
1248 cmd2->header.id = SVGA_3D_CMD_INVALIDATE_GB_SURFACE;
1249 cmd2->header.size = sizeof(cmd2->body);
1250 cmd2->body.sid = res->id;
1251 cmd3 = (void *) &cmd2[1];
1252 }
1253
1254 cmd3->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
1255 cmd3->header.size = sizeof(cmd3->body);
1256 cmd3->body.sid = res->id;
1257 cmd3->body.mobid = SVGA3D_INVALID_ID;
1258
1259 vmw_cmd_commit(dev_priv, submit_size);
1260
1261 /*
1262 * Create a fence object and fence the backup buffer.
1263 */
1264
1265 (void) vmw_execbuf_fence_commands(NULL, dev_priv,
1266 &fence, NULL);
1267
1268 vmw_bo_fence_single(val_buf->bo, fence);
1269
1270 if (likely(fence != NULL))
1271 vmw_fence_obj_unreference(&fence);
1272
1273 return 0;
1274 }
1275
vmw_gb_surface_destroy(struct vmw_resource * res)1276 static int vmw_gb_surface_destroy(struct vmw_resource *res)
1277 {
1278 struct vmw_private *dev_priv = res->dev_priv;
1279 struct vmw_surface *srf = vmw_res_to_srf(res);
1280 struct {
1281 SVGA3dCmdHeader header;
1282 SVGA3dCmdDestroyGBSurface body;
1283 } *cmd;
1284
1285 if (likely(res->id == -1))
1286 return 0;
1287
1288 mutex_lock(&dev_priv->binding_mutex);
1289 vmw_view_surface_list_destroy(dev_priv, &srf->view_list);
1290 vmw_binding_res_list_scrub(&res->binding_head);
1291
1292 cmd = VMW_CMD_RESERVE(dev_priv, sizeof(*cmd));
1293 if (unlikely(!cmd)) {
1294 mutex_unlock(&dev_priv->binding_mutex);
1295 return -ENOMEM;
1296 }
1297
1298 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SURFACE;
1299 cmd->header.size = sizeof(cmd->body);
1300 cmd->body.sid = res->id;
1301 vmw_cmd_commit(dev_priv, sizeof(*cmd));
1302 mutex_unlock(&dev_priv->binding_mutex);
1303 vmw_resource_release_id(res);
1304 vmw_fifo_resource_dec(dev_priv);
1305
1306 return 0;
1307 }
1308
1309 /**
1310 * vmw_gb_surface_define_ioctl - Ioctl function implementing
1311 * the user surface define functionality.
1312 *
1313 * @dev: Pointer to a struct drm_device.
1314 * @data: Pointer to data copied from / to user-space.
1315 * @file_priv: Pointer to a drm file private structure.
1316 */
vmw_gb_surface_define_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1317 int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1318 struct drm_file *file_priv)
1319 {
1320 union drm_vmw_gb_surface_create_arg *arg =
1321 (union drm_vmw_gb_surface_create_arg *)data;
1322 struct drm_vmw_gb_surface_create_rep *rep = &arg->rep;
1323 struct drm_vmw_gb_surface_create_ext_req req_ext;
1324
1325 req_ext.base = arg->req;
1326 req_ext.version = drm_vmw_gb_surface_v1;
1327 req_ext.svga3d_flags_upper_32_bits = 0;
1328 req_ext.multisample_pattern = SVGA3D_MS_PATTERN_NONE;
1329 req_ext.quality_level = SVGA3D_MS_QUALITY_NONE;
1330 req_ext.buffer_byte_stride = 0;
1331 req_ext.must_be_zero = 0;
1332
1333 return vmw_gb_surface_define_internal(dev, &req_ext, rep, file_priv);
1334 }
1335
1336 /**
1337 * vmw_gb_surface_reference_ioctl - Ioctl function implementing
1338 * the user surface reference functionality.
1339 *
1340 * @dev: Pointer to a struct drm_device.
1341 * @data: Pointer to data copied from / to user-space.
1342 * @file_priv: Pointer to a drm file private structure.
1343 */
vmw_gb_surface_reference_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1344 int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1345 struct drm_file *file_priv)
1346 {
1347 union drm_vmw_gb_surface_reference_arg *arg =
1348 (union drm_vmw_gb_surface_reference_arg *)data;
1349 struct drm_vmw_surface_arg *req = &arg->req;
1350 struct drm_vmw_gb_surface_ref_rep *rep = &arg->rep;
1351 struct drm_vmw_gb_surface_ref_ext_rep rep_ext;
1352 int ret;
1353
1354 ret = vmw_gb_surface_reference_internal(dev, req, &rep_ext, file_priv);
1355
1356 if (unlikely(ret != 0))
1357 return ret;
1358
1359 rep->creq = rep_ext.creq.base;
1360 rep->crep = rep_ext.crep;
1361
1362 return ret;
1363 }
1364
1365 /**
1366 * vmw_gb_surface_define_ext_ioctl - Ioctl function implementing
1367 * the user surface define functionality.
1368 *
1369 * @dev: Pointer to a struct drm_device.
1370 * @data: Pointer to data copied from / to user-space.
1371 * @file_priv: Pointer to a drm file private structure.
1372 */
vmw_gb_surface_define_ext_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1373 int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev, void *data,
1374 struct drm_file *file_priv)
1375 {
1376 union drm_vmw_gb_surface_create_ext_arg *arg =
1377 (union drm_vmw_gb_surface_create_ext_arg *)data;
1378 struct drm_vmw_gb_surface_create_ext_req *req = &arg->req;
1379 struct drm_vmw_gb_surface_create_rep *rep = &arg->rep;
1380
1381 return vmw_gb_surface_define_internal(dev, req, rep, file_priv);
1382 }
1383
1384 /**
1385 * vmw_gb_surface_reference_ext_ioctl - Ioctl function implementing
1386 * the user surface reference functionality.
1387 *
1388 * @dev: Pointer to a struct drm_device.
1389 * @data: Pointer to data copied from / to user-space.
1390 * @file_priv: Pointer to a drm file private structure.
1391 */
vmw_gb_surface_reference_ext_ioctl(struct drm_device * dev,void * data,struct drm_file * file_priv)1392 int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev, void *data,
1393 struct drm_file *file_priv)
1394 {
1395 union drm_vmw_gb_surface_reference_ext_arg *arg =
1396 (union drm_vmw_gb_surface_reference_ext_arg *)data;
1397 struct drm_vmw_surface_arg *req = &arg->req;
1398 struct drm_vmw_gb_surface_ref_ext_rep *rep = &arg->rep;
1399
1400 return vmw_gb_surface_reference_internal(dev, req, rep, file_priv);
1401 }
1402
1403 /**
1404 * vmw_gb_surface_define_internal - Ioctl function implementing
1405 * the user surface define functionality.
1406 *
1407 * @dev: Pointer to a struct drm_device.
1408 * @req: Request argument from user-space.
1409 * @rep: Response argument to user-space.
1410 * @file_priv: Pointer to a drm file private structure.
1411 */
1412 static int
vmw_gb_surface_define_internal(struct drm_device * dev,struct drm_vmw_gb_surface_create_ext_req * req,struct drm_vmw_gb_surface_create_rep * rep,struct drm_file * file_priv)1413 vmw_gb_surface_define_internal(struct drm_device *dev,
1414 struct drm_vmw_gb_surface_create_ext_req *req,
1415 struct drm_vmw_gb_surface_create_rep *rep,
1416 struct drm_file *file_priv)
1417 {
1418 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1419 struct vmw_private *dev_priv = vmw_priv(dev);
1420 struct vmw_user_surface *user_srf;
1421 struct vmw_surface_metadata metadata = {0};
1422 struct vmw_surface *srf;
1423 struct vmw_resource *res;
1424 struct vmw_resource *tmp;
1425 int ret = 0;
1426 uint32_t backup_handle = 0;
1427 SVGA3dSurfaceAllFlags svga3d_flags_64 =
1428 SVGA3D_FLAGS_64(req->svga3d_flags_upper_32_bits,
1429 req->base.svga3d_flags);
1430
1431 /* array_size must be null for non-GL3 host. */
1432 if (req->base.array_size > 0 && !has_sm4_context(dev_priv)) {
1433 VMW_DEBUG_USER("SM4 surface not supported.\n");
1434 return -EINVAL;
1435 }
1436
1437 if (!has_sm4_1_context(dev_priv)) {
1438 if (req->svga3d_flags_upper_32_bits != 0)
1439 ret = -EINVAL;
1440
1441 if (req->base.multisample_count != 0)
1442 ret = -EINVAL;
1443
1444 if (req->multisample_pattern != SVGA3D_MS_PATTERN_NONE)
1445 ret = -EINVAL;
1446
1447 if (req->quality_level != SVGA3D_MS_QUALITY_NONE)
1448 ret = -EINVAL;
1449
1450 if (ret) {
1451 VMW_DEBUG_USER("SM4.1 surface not supported.\n");
1452 return ret;
1453 }
1454 }
1455
1456 if (req->buffer_byte_stride > 0 && !has_sm5_context(dev_priv)) {
1457 VMW_DEBUG_USER("SM5 surface not supported.\n");
1458 return -EINVAL;
1459 }
1460
1461 if ((svga3d_flags_64 & SVGA3D_SURFACE_MULTISAMPLE) &&
1462 req->base.multisample_count == 0) {
1463 VMW_DEBUG_USER("Invalid sample count.\n");
1464 return -EINVAL;
1465 }
1466
1467 if (req->base.mip_levels > DRM_VMW_MAX_MIP_LEVELS) {
1468 VMW_DEBUG_USER("Invalid mip level.\n");
1469 return -EINVAL;
1470 }
1471
1472 metadata.flags = svga3d_flags_64;
1473 metadata.format = req->base.format;
1474 metadata.mip_levels[0] = req->base.mip_levels;
1475 metadata.multisample_count = req->base.multisample_count;
1476 metadata.multisample_pattern = req->multisample_pattern;
1477 metadata.quality_level = req->quality_level;
1478 metadata.array_size = req->base.array_size;
1479 metadata.buffer_byte_stride = req->buffer_byte_stride;
1480 metadata.num_sizes = 1;
1481 metadata.base_size = req->base.base_size;
1482 metadata.scanout = req->base.drm_surface_flags &
1483 drm_vmw_surface_flag_scanout;
1484
1485 /* Define a surface based on the parameters. */
1486 ret = vmw_gb_surface_define(dev_priv, &metadata, &srf);
1487 if (ret != 0) {
1488 VMW_DEBUG_USER("Failed to define surface.\n");
1489 return ret;
1490 }
1491
1492 user_srf = container_of(srf, struct vmw_user_surface, srf);
1493 if (drm_is_primary_client(file_priv))
1494 user_srf->master = drm_file_get_master(file_priv);
1495
1496 res = &user_srf->srf.res;
1497
1498 if (req->base.buffer_handle != SVGA3D_INVALID_ID) {
1499 ret = vmw_user_bo_lookup(file_priv, req->base.buffer_handle,
1500 &res->backup);
1501 if (ret == 0) {
1502 if (res->backup->base.base.size < res->backup_size) {
1503 VMW_DEBUG_USER("Surface backup buffer too small.\n");
1504 vmw_bo_unreference(&res->backup);
1505 ret = -EINVAL;
1506 goto out_unlock;
1507 } else {
1508 backup_handle = req->base.buffer_handle;
1509 }
1510 }
1511 } else if (req->base.drm_surface_flags &
1512 (drm_vmw_surface_flag_create_buffer |
1513 drm_vmw_surface_flag_coherent)) {
1514 ret = vmw_gem_object_create_with_handle(dev_priv, file_priv,
1515 res->backup_size,
1516 &backup_handle,
1517 &res->backup);
1518 if (ret == 0)
1519 vmw_bo_reference(res->backup);
1520 }
1521
1522 if (unlikely(ret != 0)) {
1523 vmw_resource_unreference(&res);
1524 goto out_unlock;
1525 }
1526
1527 if (req->base.drm_surface_flags & drm_vmw_surface_flag_coherent) {
1528 struct vmw_buffer_object *backup = res->backup;
1529
1530 ttm_bo_reserve(&backup->base, false, false, NULL);
1531 if (!res->func->dirty_alloc)
1532 ret = -EINVAL;
1533 if (!ret)
1534 ret = vmw_bo_dirty_add(backup);
1535 if (!ret) {
1536 res->coherent = true;
1537 ret = res->func->dirty_alloc(res);
1538 }
1539 ttm_bo_unreserve(&backup->base);
1540 if (ret) {
1541 vmw_resource_unreference(&res);
1542 goto out_unlock;
1543 }
1544
1545 }
1546
1547 tmp = vmw_resource_reference(res);
1548 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
1549 req->base.drm_surface_flags &
1550 drm_vmw_surface_flag_shareable,
1551 VMW_RES_SURFACE,
1552 &vmw_user_surface_base_release);
1553
1554 if (unlikely(ret != 0)) {
1555 vmw_resource_unreference(&tmp);
1556 vmw_resource_unreference(&res);
1557 goto out_unlock;
1558 }
1559
1560 rep->handle = user_srf->prime.base.handle;
1561 rep->backup_size = res->backup_size;
1562 if (res->backup) {
1563 rep->buffer_map_handle =
1564 drm_vma_node_offset_addr(&res->backup->base.base.vma_node);
1565 rep->buffer_size = res->backup->base.base.size;
1566 rep->buffer_handle = backup_handle;
1567 if (user_srf->prime.base.shareable)
1568 drm_gem_object_get(&res->backup->base.base);
1569 } else {
1570 rep->buffer_map_handle = 0;
1571 rep->buffer_size = 0;
1572 rep->buffer_handle = SVGA3D_INVALID_ID;
1573 }
1574 vmw_resource_unreference(&res);
1575
1576 out_unlock:
1577 return ret;
1578 }
1579
1580 /**
1581 * vmw_gb_surface_reference_internal - Ioctl function implementing
1582 * the user surface reference functionality.
1583 *
1584 * @dev: Pointer to a struct drm_device.
1585 * @req: Pointer to user-space request surface arg.
1586 * @rep: Pointer to response to user-space.
1587 * @file_priv: Pointer to a drm file private structure.
1588 */
1589 static int
vmw_gb_surface_reference_internal(struct drm_device * dev,struct drm_vmw_surface_arg * req,struct drm_vmw_gb_surface_ref_ext_rep * rep,struct drm_file * file_priv)1590 vmw_gb_surface_reference_internal(struct drm_device *dev,
1591 struct drm_vmw_surface_arg *req,
1592 struct drm_vmw_gb_surface_ref_ext_rep *rep,
1593 struct drm_file *file_priv)
1594 {
1595 struct vmw_private *dev_priv = vmw_priv(dev);
1596 struct vmw_surface *srf;
1597 struct vmw_user_surface *user_srf;
1598 struct vmw_surface_metadata *metadata;
1599 struct ttm_base_object *base;
1600 u32 backup_handle;
1601 int ret;
1602
1603 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
1604 req->handle_type, &base);
1605 if (unlikely(ret != 0))
1606 return ret;
1607
1608 user_srf = container_of(base, struct vmw_user_surface, prime.base);
1609 srf = &user_srf->srf;
1610 if (!srf->res.backup) {
1611 DRM_ERROR("Shared GB surface is missing a backup buffer.\n");
1612 goto out_bad_resource;
1613 }
1614 metadata = &srf->metadata;
1615
1616 mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */
1617 ret = drm_gem_handle_create(file_priv, &srf->res.backup->base.base,
1618 &backup_handle);
1619 mutex_unlock(&dev_priv->cmdbuf_mutex);
1620 if (ret != 0) {
1621 drm_err(dev, "Wasn't able to create a backing handle for surface sid = %u.\n",
1622 req->sid);
1623 goto out_bad_resource;
1624 }
1625
1626 rep->creq.base.svga3d_flags = SVGA3D_FLAGS_LOWER_32(metadata->flags);
1627 rep->creq.base.format = metadata->format;
1628 rep->creq.base.mip_levels = metadata->mip_levels[0];
1629 rep->creq.base.drm_surface_flags = 0;
1630 rep->creq.base.multisample_count = metadata->multisample_count;
1631 rep->creq.base.autogen_filter = metadata->autogen_filter;
1632 rep->creq.base.array_size = metadata->array_size;
1633 rep->creq.base.buffer_handle = backup_handle;
1634 rep->creq.base.base_size = metadata->base_size;
1635 rep->crep.handle = user_srf->prime.base.handle;
1636 rep->crep.backup_size = srf->res.backup_size;
1637 rep->crep.buffer_handle = backup_handle;
1638 rep->crep.buffer_map_handle =
1639 drm_vma_node_offset_addr(&srf->res.backup->base.base.vma_node);
1640 rep->crep.buffer_size = srf->res.backup->base.base.size;
1641
1642 rep->creq.version = drm_vmw_gb_surface_v1;
1643 rep->creq.svga3d_flags_upper_32_bits =
1644 SVGA3D_FLAGS_UPPER_32(metadata->flags);
1645 rep->creq.multisample_pattern = metadata->multisample_pattern;
1646 rep->creq.quality_level = metadata->quality_level;
1647 rep->creq.must_be_zero = 0;
1648
1649 out_bad_resource:
1650 ttm_base_object_unref(&base);
1651
1652 return ret;
1653 }
1654
1655 /**
1656 * vmw_subres_dirty_add - Add a dirty region to a subresource
1657 * @dirty: The surfaces's dirty tracker.
1658 * @loc_start: The location corresponding to the start of the region.
1659 * @loc_end: The location corresponding to the end of the region.
1660 *
1661 * As we are assuming that @loc_start and @loc_end represent a sequential
1662 * range of backing store memory, if the region spans multiple lines then
1663 * regardless of the x coordinate, the full lines are dirtied.
1664 * Correspondingly if the region spans multiple z slices, then full rather
1665 * than partial z slices are dirtied.
1666 */
vmw_subres_dirty_add(struct vmw_surface_dirty * dirty,const struct vmw_surface_loc * loc_start,const struct vmw_surface_loc * loc_end)1667 static void vmw_subres_dirty_add(struct vmw_surface_dirty *dirty,
1668 const struct vmw_surface_loc *loc_start,
1669 const struct vmw_surface_loc *loc_end)
1670 {
1671 const struct vmw_surface_cache *cache = &dirty->cache;
1672 SVGA3dBox *box = &dirty->boxes[loc_start->sub_resource];
1673 u32 mip = loc_start->sub_resource % cache->num_mip_levels;
1674 const struct drm_vmw_size *size = &cache->mip[mip].size;
1675 u32 box_c2 = box->z + box->d;
1676
1677 if (WARN_ON(loc_start->sub_resource >= dirty->num_subres))
1678 return;
1679
1680 if (box->d == 0 || box->z > loc_start->z)
1681 box->z = loc_start->z;
1682 if (box_c2 < loc_end->z)
1683 box->d = loc_end->z - box->z;
1684
1685 if (loc_start->z + 1 == loc_end->z) {
1686 box_c2 = box->y + box->h;
1687 if (box->h == 0 || box->y > loc_start->y)
1688 box->y = loc_start->y;
1689 if (box_c2 < loc_end->y)
1690 box->h = loc_end->y - box->y;
1691
1692 if (loc_start->y + 1 == loc_end->y) {
1693 box_c2 = box->x + box->w;
1694 if (box->w == 0 || box->x > loc_start->x)
1695 box->x = loc_start->x;
1696 if (box_c2 < loc_end->x)
1697 box->w = loc_end->x - box->x;
1698 } else {
1699 box->x = 0;
1700 box->w = size->width;
1701 }
1702 } else {
1703 box->y = 0;
1704 box->h = size->height;
1705 box->x = 0;
1706 box->w = size->width;
1707 }
1708 }
1709
1710 /**
1711 * vmw_subres_dirty_full - Mark a full subresource as dirty
1712 * @dirty: The surface's dirty tracker.
1713 * @subres: The subresource
1714 */
vmw_subres_dirty_full(struct vmw_surface_dirty * dirty,u32 subres)1715 static void vmw_subres_dirty_full(struct vmw_surface_dirty *dirty, u32 subres)
1716 {
1717 const struct vmw_surface_cache *cache = &dirty->cache;
1718 u32 mip = subres % cache->num_mip_levels;
1719 const struct drm_vmw_size *size = &cache->mip[mip].size;
1720 SVGA3dBox *box = &dirty->boxes[subres];
1721
1722 box->x = 0;
1723 box->y = 0;
1724 box->z = 0;
1725 box->w = size->width;
1726 box->h = size->height;
1727 box->d = size->depth;
1728 }
1729
1730 /*
1731 * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for texture
1732 * surfaces.
1733 */
vmw_surface_tex_dirty_range_add(struct vmw_resource * res,size_t start,size_t end)1734 static void vmw_surface_tex_dirty_range_add(struct vmw_resource *res,
1735 size_t start, size_t end)
1736 {
1737 struct vmw_surface_dirty *dirty =
1738 (struct vmw_surface_dirty *) res->dirty;
1739 size_t backup_end = res->backup_offset + res->backup_size;
1740 struct vmw_surface_loc loc1, loc2;
1741 const struct vmw_surface_cache *cache;
1742
1743 start = max_t(size_t, start, res->backup_offset) - res->backup_offset;
1744 end = min(end, backup_end) - res->backup_offset;
1745 cache = &dirty->cache;
1746 vmw_surface_get_loc(cache, &loc1, start);
1747 vmw_surface_get_loc(cache, &loc2, end - 1);
1748 vmw_surface_inc_loc(cache, &loc2);
1749
1750 if (loc1.sheet != loc2.sheet) {
1751 u32 sub_res;
1752
1753 /*
1754 * Multiple multisample sheets. To do this in an optimized
1755 * fashion, compute the dirty region for each sheet and the
1756 * resulting union. Since this is not a common case, just dirty
1757 * the whole surface.
1758 */
1759 for (sub_res = 0; sub_res < dirty->num_subres; ++sub_res)
1760 vmw_subres_dirty_full(dirty, sub_res);
1761 return;
1762 }
1763 if (loc1.sub_resource + 1 == loc2.sub_resource) {
1764 /* Dirty range covers a single sub-resource */
1765 vmw_subres_dirty_add(dirty, &loc1, &loc2);
1766 } else {
1767 /* Dirty range covers multiple sub-resources */
1768 struct vmw_surface_loc loc_min, loc_max;
1769 u32 sub_res;
1770
1771 vmw_surface_max_loc(cache, loc1.sub_resource, &loc_max);
1772 vmw_subres_dirty_add(dirty, &loc1, &loc_max);
1773 vmw_surface_min_loc(cache, loc2.sub_resource - 1, &loc_min);
1774 vmw_subres_dirty_add(dirty, &loc_min, &loc2);
1775 for (sub_res = loc1.sub_resource + 1;
1776 sub_res < loc2.sub_resource - 1; ++sub_res)
1777 vmw_subres_dirty_full(dirty, sub_res);
1778 }
1779 }
1780
1781 /*
1782 * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for buffer
1783 * surfaces.
1784 */
vmw_surface_buf_dirty_range_add(struct vmw_resource * res,size_t start,size_t end)1785 static void vmw_surface_buf_dirty_range_add(struct vmw_resource *res,
1786 size_t start, size_t end)
1787 {
1788 struct vmw_surface_dirty *dirty =
1789 (struct vmw_surface_dirty *) res->dirty;
1790 const struct vmw_surface_cache *cache = &dirty->cache;
1791 size_t backup_end = res->backup_offset + cache->mip_chain_bytes;
1792 SVGA3dBox *box = &dirty->boxes[0];
1793 u32 box_c2;
1794
1795 box->h = box->d = 1;
1796 start = max_t(size_t, start, res->backup_offset) - res->backup_offset;
1797 end = min(end, backup_end) - res->backup_offset;
1798 box_c2 = box->x + box->w;
1799 if (box->w == 0 || box->x > start)
1800 box->x = start;
1801 if (box_c2 < end)
1802 box->w = end - box->x;
1803 }
1804
1805 /*
1806 * vmw_surface_tex_dirty_add_range - The dirty_add_range callback for surfaces
1807 */
vmw_surface_dirty_range_add(struct vmw_resource * res,size_t start,size_t end)1808 static void vmw_surface_dirty_range_add(struct vmw_resource *res, size_t start,
1809 size_t end)
1810 {
1811 struct vmw_surface *srf = vmw_res_to_srf(res);
1812
1813 if (WARN_ON(end <= res->backup_offset ||
1814 start >= res->backup_offset + res->backup_size))
1815 return;
1816
1817 if (srf->metadata.format == SVGA3D_BUFFER)
1818 vmw_surface_buf_dirty_range_add(res, start, end);
1819 else
1820 vmw_surface_tex_dirty_range_add(res, start, end);
1821 }
1822
1823 /*
1824 * vmw_surface_dirty_sync - The surface's dirty_sync callback.
1825 */
vmw_surface_dirty_sync(struct vmw_resource * res)1826 static int vmw_surface_dirty_sync(struct vmw_resource *res)
1827 {
1828 struct vmw_private *dev_priv = res->dev_priv;
1829 u32 i, num_dirty;
1830 struct vmw_surface_dirty *dirty =
1831 (struct vmw_surface_dirty *) res->dirty;
1832 size_t alloc_size;
1833 const struct vmw_surface_cache *cache = &dirty->cache;
1834 struct {
1835 SVGA3dCmdHeader header;
1836 SVGA3dCmdDXUpdateSubResource body;
1837 } *cmd1;
1838 struct {
1839 SVGA3dCmdHeader header;
1840 SVGA3dCmdUpdateGBImage body;
1841 } *cmd2;
1842 void *cmd;
1843
1844 num_dirty = 0;
1845 for (i = 0; i < dirty->num_subres; ++i) {
1846 const SVGA3dBox *box = &dirty->boxes[i];
1847
1848 if (box->d)
1849 num_dirty++;
1850 }
1851
1852 if (!num_dirty)
1853 goto out;
1854
1855 alloc_size = num_dirty * ((has_sm4_context(dev_priv)) ? sizeof(*cmd1) : sizeof(*cmd2));
1856 cmd = VMW_CMD_RESERVE(dev_priv, alloc_size);
1857 if (!cmd)
1858 return -ENOMEM;
1859
1860 cmd1 = cmd;
1861 cmd2 = cmd;
1862
1863 for (i = 0; i < dirty->num_subres; ++i) {
1864 const SVGA3dBox *box = &dirty->boxes[i];
1865
1866 if (!box->d)
1867 continue;
1868
1869 /*
1870 * DX_UPDATE_SUBRESOURCE is aware of array surfaces.
1871 * UPDATE_GB_IMAGE is not.
1872 */
1873 if (has_sm4_context(dev_priv)) {
1874 cmd1->header.id = SVGA_3D_CMD_DX_UPDATE_SUBRESOURCE;
1875 cmd1->header.size = sizeof(cmd1->body);
1876 cmd1->body.sid = res->id;
1877 cmd1->body.subResource = i;
1878 cmd1->body.box = *box;
1879 cmd1++;
1880 } else {
1881 cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_IMAGE;
1882 cmd2->header.size = sizeof(cmd2->body);
1883 cmd2->body.image.sid = res->id;
1884 cmd2->body.image.face = i / cache->num_mip_levels;
1885 cmd2->body.image.mipmap = i -
1886 (cache->num_mip_levels * cmd2->body.image.face);
1887 cmd2->body.box = *box;
1888 cmd2++;
1889 }
1890
1891 }
1892 vmw_cmd_commit(dev_priv, alloc_size);
1893 out:
1894 memset(&dirty->boxes[0], 0, sizeof(dirty->boxes[0]) *
1895 dirty->num_subres);
1896
1897 return 0;
1898 }
1899
1900 /*
1901 * vmw_surface_dirty_alloc - The surface's dirty_alloc callback.
1902 */
vmw_surface_dirty_alloc(struct vmw_resource * res)1903 static int vmw_surface_dirty_alloc(struct vmw_resource *res)
1904 {
1905 struct vmw_surface *srf = vmw_res_to_srf(res);
1906 const struct vmw_surface_metadata *metadata = &srf->metadata;
1907 struct vmw_surface_dirty *dirty;
1908 u32 num_layers = 1;
1909 u32 num_mip;
1910 u32 num_subres;
1911 u32 num_samples;
1912 size_t dirty_size;
1913 int ret;
1914
1915 if (metadata->array_size)
1916 num_layers = metadata->array_size;
1917 else if (metadata->flags & SVGA3D_SURFACE_CUBEMAP)
1918 num_layers *= SVGA3D_MAX_SURFACE_FACES;
1919
1920 num_mip = metadata->mip_levels[0];
1921 if (!num_mip)
1922 num_mip = 1;
1923
1924 num_subres = num_layers * num_mip;
1925 dirty_size = struct_size(dirty, boxes, num_subres);
1926
1927 dirty = kvzalloc(dirty_size, GFP_KERNEL);
1928 if (!dirty) {
1929 ret = -ENOMEM;
1930 goto out_no_dirty;
1931 }
1932
1933 num_samples = max_t(u32, 1, metadata->multisample_count);
1934 ret = vmw_surface_setup_cache(&metadata->base_size, metadata->format,
1935 num_mip, num_layers, num_samples,
1936 &dirty->cache);
1937 if (ret)
1938 goto out_no_cache;
1939
1940 dirty->num_subres = num_subres;
1941 res->dirty = (struct vmw_resource_dirty *) dirty;
1942
1943 return 0;
1944
1945 out_no_cache:
1946 kvfree(dirty);
1947 out_no_dirty:
1948 return ret;
1949 }
1950
1951 /*
1952 * vmw_surface_dirty_free - The surface's dirty_free callback
1953 */
vmw_surface_dirty_free(struct vmw_resource * res)1954 static void vmw_surface_dirty_free(struct vmw_resource *res)
1955 {
1956 struct vmw_surface_dirty *dirty =
1957 (struct vmw_surface_dirty *) res->dirty;
1958
1959 kvfree(dirty);
1960 res->dirty = NULL;
1961 }
1962
1963 /*
1964 * vmw_surface_clean - The surface's clean callback
1965 */
vmw_surface_clean(struct vmw_resource * res)1966 static int vmw_surface_clean(struct vmw_resource *res)
1967 {
1968 struct vmw_private *dev_priv = res->dev_priv;
1969 size_t alloc_size;
1970 struct {
1971 SVGA3dCmdHeader header;
1972 SVGA3dCmdReadbackGBSurface body;
1973 } *cmd;
1974
1975 alloc_size = sizeof(*cmd);
1976 cmd = VMW_CMD_RESERVE(dev_priv, alloc_size);
1977 if (!cmd)
1978 return -ENOMEM;
1979
1980 cmd->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE;
1981 cmd->header.size = sizeof(cmd->body);
1982 cmd->body.sid = res->id;
1983 vmw_cmd_commit(dev_priv, alloc_size);
1984
1985 return 0;
1986 }
1987
1988 /*
1989 * vmw_gb_surface_define - Define a private GB surface
1990 *
1991 * @dev_priv: Pointer to a device private.
1992 * @metadata: Metadata representing the surface to create.
1993 * @user_srf_out: allocated user_srf. Set to NULL on failure.
1994 *
1995 * GB surfaces allocated by this function will not have a user mode handle, and
1996 * thus will only be visible to vmwgfx. For optimization reasons the
1997 * surface may later be given a user mode handle by another function to make
1998 * it available to user mode drivers.
1999 */
vmw_gb_surface_define(struct vmw_private * dev_priv,const struct vmw_surface_metadata * req,struct vmw_surface ** srf_out)2000 int vmw_gb_surface_define(struct vmw_private *dev_priv,
2001 const struct vmw_surface_metadata *req,
2002 struct vmw_surface **srf_out)
2003 {
2004 struct vmw_surface_metadata *metadata;
2005 struct vmw_user_surface *user_srf;
2006 struct vmw_surface *srf;
2007 u32 sample_count = 1;
2008 u32 num_layers = 1;
2009 int ret;
2010
2011 *srf_out = NULL;
2012
2013 if (req->scanout) {
2014 if (!vmw_surface_is_screen_target_format(req->format)) {
2015 VMW_DEBUG_USER("Invalid Screen Target surface format.");
2016 return -EINVAL;
2017 }
2018
2019 if (req->base_size.width > dev_priv->texture_max_width ||
2020 req->base_size.height > dev_priv->texture_max_height) {
2021 VMW_DEBUG_USER("%ux%u\n, exceed max surface size %ux%u",
2022 req->base_size.width,
2023 req->base_size.height,
2024 dev_priv->texture_max_width,
2025 dev_priv->texture_max_height);
2026 return -EINVAL;
2027 }
2028 } else {
2029 const SVGA3dSurfaceDesc *desc =
2030 vmw_surface_get_desc(req->format);
2031
2032 if (desc->blockDesc == SVGA3DBLOCKDESC_NONE) {
2033 VMW_DEBUG_USER("Invalid surface format.\n");
2034 return -EINVAL;
2035 }
2036 }
2037
2038 if (req->autogen_filter != SVGA3D_TEX_FILTER_NONE)
2039 return -EINVAL;
2040
2041 if (req->num_sizes != 1)
2042 return -EINVAL;
2043
2044 if (req->sizes != NULL)
2045 return -EINVAL;
2046
2047 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
2048 if (unlikely(!user_srf)) {
2049 ret = -ENOMEM;
2050 goto out_unlock;
2051 }
2052
2053 *srf_out = &user_srf->srf;
2054 user_srf->prime.base.shareable = false;
2055 user_srf->prime.base.tfile = NULL;
2056
2057 srf = &user_srf->srf;
2058 srf->metadata = *req;
2059 srf->offsets = NULL;
2060
2061 metadata = &srf->metadata;
2062
2063 if (metadata->array_size)
2064 num_layers = req->array_size;
2065 else if (metadata->flags & SVGA3D_SURFACE_CUBEMAP)
2066 num_layers = SVGA3D_MAX_SURFACE_FACES;
2067
2068 if (metadata->flags & SVGA3D_SURFACE_MULTISAMPLE)
2069 sample_count = metadata->multisample_count;
2070
2071 srf->res.backup_size =
2072 vmw_surface_get_serialized_size_extended(
2073 metadata->format,
2074 metadata->base_size,
2075 metadata->mip_levels[0],
2076 num_layers,
2077 sample_count);
2078
2079 if (metadata->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT)
2080 srf->res.backup_size += sizeof(SVGA3dDXSOState);
2081
2082 /*
2083 * Don't set SVGA3D_SURFACE_SCREENTARGET flag for a scanout surface with
2084 * size greater than STDU max width/height. This is really a workaround
2085 * to support creation of big framebuffer requested by some user-space
2086 * for whole topology. That big framebuffer won't really be used for
2087 * binding with screen target as during prepare_fb a separate surface is
2088 * created so it's safe to ignore SVGA3D_SURFACE_SCREENTARGET flag.
2089 */
2090 if (dev_priv->active_display_unit == vmw_du_screen_target &&
2091 metadata->scanout &&
2092 metadata->base_size.width <= dev_priv->stdu_max_width &&
2093 metadata->base_size.height <= dev_priv->stdu_max_height)
2094 metadata->flags |= SVGA3D_SURFACE_SCREENTARGET;
2095
2096 /*
2097 * From this point, the generic resource management functions
2098 * destroy the object on failure.
2099 */
2100 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
2101
2102 return ret;
2103
2104 out_unlock:
2105 return ret;
2106 }
2107