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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 "device_include/svga3d_surfacedefs.h"
35
36#define SVGA3D_FLAGS_64(upper32, lower32) (((uint64_t)upper32 << 32) | lower32)
37#define SVGA3D_FLAGS_UPPER_32(svga3d_flags) (svga3d_flags >> 32)
38#define SVGA3D_FLAGS_LOWER_32(svga3d_flags) \
39 (svga3d_flags & ((uint64_t)U32_MAX))
40
41/**
42 * struct vmw_user_surface - User-space visible surface resource
43 *
44 * @base: The TTM base object handling user-space visibility.
45 * @srf: The surface metadata.
46 * @size: TTM accounting size for the surface.
47 * @master: master of the creating client. Used for security check.
48 */
49struct vmw_user_surface {
50 struct ttm_prime_object prime;
51 struct vmw_surface srf;
52 uint32_t size;
53 struct drm_master *master;
54 struct ttm_base_object *backup_base;
55};
56
57/**
58 * struct vmw_surface_offset - Backing store mip level offset info
59 *
60 * @face: Surface face.
61 * @mip: Mip level.
62 * @bo_offset: Offset into backing store of this mip level.
63 *
64 */
65struct vmw_surface_offset {
66 uint32_t face;
67 uint32_t mip;
68 uint32_t bo_offset;
69};
70
71static void vmw_user_surface_free(struct vmw_resource *res);
72static struct vmw_resource *
73vmw_user_surface_base_to_res(struct ttm_base_object *base);
74static int vmw_legacy_srf_bind(struct vmw_resource *res,
75 struct ttm_validate_buffer *val_buf);
76static int vmw_legacy_srf_unbind(struct vmw_resource *res,
77 bool readback,
78 struct ttm_validate_buffer *val_buf);
79static int vmw_legacy_srf_create(struct vmw_resource *res);
80static int vmw_legacy_srf_destroy(struct vmw_resource *res);
81static int vmw_gb_surface_create(struct vmw_resource *res);
82static int vmw_gb_surface_bind(struct vmw_resource *res,
83 struct ttm_validate_buffer *val_buf);
84static int vmw_gb_surface_unbind(struct vmw_resource *res,
85 bool readback,
86 struct ttm_validate_buffer *val_buf);
87static int vmw_gb_surface_destroy(struct vmw_resource *res);
88static int
89vmw_gb_surface_define_internal(struct drm_device *dev,
90 struct drm_vmw_gb_surface_create_ext_req *req,
91 struct drm_vmw_gb_surface_create_rep *rep,
92 struct drm_file *file_priv);
93static int
94vmw_gb_surface_reference_internal(struct drm_device *dev,
95 struct drm_vmw_surface_arg *req,
96 struct drm_vmw_gb_surface_ref_ext_rep *rep,
97 struct drm_file *file_priv);
98
99static const struct vmw_user_resource_conv user_surface_conv = {
100 .object_type = VMW_RES_SURFACE,
101 .base_obj_to_res = vmw_user_surface_base_to_res,
102 .res_free = vmw_user_surface_free
103};
104
105const struct vmw_user_resource_conv *user_surface_converter =
106 &user_surface_conv;
107
108
109static uint64_t vmw_user_surface_size;
110
111static const struct vmw_res_func vmw_legacy_surface_func = {
112 .res_type = vmw_res_surface,
113 .needs_backup = false,
114 .may_evict = true,
115 .prio = 1,
116 .dirty_prio = 1,
117 .type_name = "legacy surfaces",
118 .backup_placement = &vmw_srf_placement,
119 .create = &vmw_legacy_srf_create,
120 .destroy = &vmw_legacy_srf_destroy,
121 .bind = &vmw_legacy_srf_bind,
122 .unbind = &vmw_legacy_srf_unbind
123};
124
125static const struct vmw_res_func vmw_gb_surface_func = {
126 .res_type = vmw_res_surface,
127 .needs_backup = true,
128 .may_evict = true,
129 .prio = 1,
130 .dirty_prio = 2,
131 .type_name = "guest backed surfaces",
132 .backup_placement = &vmw_mob_placement,
133 .create = vmw_gb_surface_create,
134 .destroy = vmw_gb_surface_destroy,
135 .bind = vmw_gb_surface_bind,
136 .unbind = vmw_gb_surface_unbind
137};
138
139/**
140 * struct vmw_surface_dma - SVGA3D DMA command
141 */
142struct vmw_surface_dma {
143 SVGA3dCmdHeader header;
144 SVGA3dCmdSurfaceDMA body;
145 SVGA3dCopyBox cb;
146 SVGA3dCmdSurfaceDMASuffix suffix;
147};
148
149/**
150 * struct vmw_surface_define - SVGA3D Surface Define command
151 */
152struct vmw_surface_define {
153 SVGA3dCmdHeader header;
154 SVGA3dCmdDefineSurface body;
155};
156
157/**
158 * struct vmw_surface_destroy - SVGA3D Surface Destroy command
159 */
160struct vmw_surface_destroy {
161 SVGA3dCmdHeader header;
162 SVGA3dCmdDestroySurface body;
163};
164
165
166/**
167 * vmw_surface_dma_size - Compute fifo size for a dma command.
168 *
169 * @srf: Pointer to a struct vmw_surface
170 *
171 * Computes the required size for a surface dma command for backup or
172 * restoration of the surface represented by @srf.
173 */
174static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf)
175{
176 return srf->num_sizes * sizeof(struct vmw_surface_dma);
177}
178
179
180/**
181 * vmw_surface_define_size - Compute fifo size for a surface define command.
182 *
183 * @srf: Pointer to a struct vmw_surface
184 *
185 * Computes the required size for a surface define command for the definition
186 * of the surface represented by @srf.
187 */
188static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf)
189{
190 return sizeof(struct vmw_surface_define) + srf->num_sizes *
191 sizeof(SVGA3dSize);
192}
193
194
195/**
196 * vmw_surface_destroy_size - Compute fifo size for a surface destroy command.
197 *
198 * Computes the required size for a surface destroy command for the destruction
199 * of a hw surface.
200 */
201static inline uint32_t vmw_surface_destroy_size(void)
202{
203 return sizeof(struct vmw_surface_destroy);
204}
205
206/**
207 * vmw_surface_destroy_encode - Encode a surface_destroy command.
208 *
209 * @id: The surface id
210 * @cmd_space: Pointer to memory area in which the commands should be encoded.
211 */
212static void vmw_surface_destroy_encode(uint32_t id,
213 void *cmd_space)
214{
215 struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *)
216 cmd_space;
217
218 cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY;
219 cmd->header.size = sizeof(cmd->body);
220 cmd->body.sid = id;
221}
222
223/**
224 * vmw_surface_define_encode - Encode a surface_define command.
225 *
226 * @srf: Pointer to a struct vmw_surface object.
227 * @cmd_space: Pointer to memory area in which the commands should be encoded.
228 */
229static void vmw_surface_define_encode(const struct vmw_surface *srf,
230 void *cmd_space)
231{
232 struct vmw_surface_define *cmd = (struct vmw_surface_define *)
233 cmd_space;
234 struct drm_vmw_size *src_size;
235 SVGA3dSize *cmd_size;
236 uint32_t cmd_len;
237 int i;
238
239 cmd_len = sizeof(cmd->body) + srf->num_sizes * sizeof(SVGA3dSize);
240
241 cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE;
242 cmd->header.size = cmd_len;
243 cmd->body.sid = srf->res.id;
244 /*
245 * Downcast of surfaceFlags, was upcasted when received from user-space,
246 * since driver internally stores as 64 bit.
247 * For legacy surface define only 32 bit flag is supported.
248 */
249 cmd->body.surfaceFlags = (SVGA3dSurface1Flags)srf->flags;
250 cmd->body.format = srf->format;
251 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
252 cmd->body.face[i].numMipLevels = srf->mip_levels[i];
253
254 cmd += 1;
255 cmd_size = (SVGA3dSize *) cmd;
256 src_size = srf->sizes;
257
258 for (i = 0; i < srf->num_sizes; ++i, cmd_size++, src_size++) {
259 cmd_size->width = src_size->width;
260 cmd_size->height = src_size->height;
261 cmd_size->depth = src_size->depth;
262 }
263}
264
265/**
266 * vmw_surface_dma_encode - Encode a surface_dma command.
267 *
268 * @srf: Pointer to a struct vmw_surface object.
269 * @cmd_space: Pointer to memory area in which the commands should be encoded.
270 * @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents
271 * should be placed or read from.
272 * @to_surface: Boolean whether to DMA to the surface or from the surface.
273 */
274static void vmw_surface_dma_encode(struct vmw_surface *srf,
275 void *cmd_space,
276 const SVGAGuestPtr *ptr,
277 bool to_surface)
278{
279 uint32_t i;
280 struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space;
281 const struct svga3d_surface_desc *desc =
282 svga3dsurface_get_desc(srf->format);
283
284 for (i = 0; i < srf->num_sizes; ++i) {
285 SVGA3dCmdHeader *header = &cmd->header;
286 SVGA3dCmdSurfaceDMA *body = &cmd->body;
287 SVGA3dCopyBox *cb = &cmd->cb;
288 SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix;
289 const struct vmw_surface_offset *cur_offset = &srf->offsets[i];
290 const struct drm_vmw_size *cur_size = &srf->sizes[i];
291
292 header->id = SVGA_3D_CMD_SURFACE_DMA;
293 header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix);
294
295 body->guest.ptr = *ptr;
296 body->guest.ptr.offset += cur_offset->bo_offset;
297 body->guest.pitch = svga3dsurface_calculate_pitch(desc,
298 cur_size);
299 body->host.sid = srf->res.id;
300 body->host.face = cur_offset->face;
301 body->host.mipmap = cur_offset->mip;
302 body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM :
303 SVGA3D_READ_HOST_VRAM);
304 cb->x = 0;
305 cb->y = 0;
306 cb->z = 0;
307 cb->srcx = 0;
308 cb->srcy = 0;
309 cb->srcz = 0;
310 cb->w = cur_size->width;
311 cb->h = cur_size->height;
312 cb->d = cur_size->depth;
313
314 suffix->suffixSize = sizeof(*suffix);
315 suffix->maximumOffset =
316 svga3dsurface_get_image_buffer_size(desc, cur_size,
317 body->guest.pitch);
318 suffix->flags.discard = 0;
319 suffix->flags.unsynchronized = 0;
320 suffix->flags.reserved = 0;
321 ++cmd;
322 }
323};
324
325
326/**
327 * vmw_hw_surface_destroy - destroy a Device surface
328 *
329 * @res: Pointer to a struct vmw_resource embedded in a struct
330 * vmw_surface.
331 *
332 * Destroys a the device surface associated with a struct vmw_surface if
333 * any, and adjusts accounting and resource count accordingly.
334 */
335static void vmw_hw_surface_destroy(struct vmw_resource *res)
336{
337
338 struct vmw_private *dev_priv = res->dev_priv;
339 struct vmw_surface *srf;
340 void *cmd;
341
342 if (res->func->destroy == vmw_gb_surface_destroy) {
343 (void) vmw_gb_surface_destroy(res);
344 return;
345 }
346
347 if (res->id != -1) {
348
349 cmd = VMW_FIFO_RESERVE(dev_priv, vmw_surface_destroy_size());
350 if (unlikely(!cmd))
351 return;
352
353 vmw_surface_destroy_encode(res->id, cmd);
354 vmw_fifo_commit(dev_priv, vmw_surface_destroy_size());
355
356 /*
357 * used_memory_size_atomic, or separate lock
358 * to avoid taking dev_priv::cmdbuf_mutex in
359 * the destroy path.
360 */
361
362 mutex_lock(&dev_priv->cmdbuf_mutex);
363 srf = vmw_res_to_srf(res);
364 dev_priv->used_memory_size -= res->backup_size;
365 mutex_unlock(&dev_priv->cmdbuf_mutex);
366 }
367}
368
369/**
370 * vmw_legacy_srf_create - Create a device surface as part of the
371 * resource validation process.
372 *
373 * @res: Pointer to a struct vmw_surface.
374 *
375 * If the surface doesn't have a hw id.
376 *
377 * Returns -EBUSY if there wasn't sufficient device resources to
378 * complete the validation. Retry after freeing up resources.
379 *
380 * May return other errors if the kernel is out of guest resources.
381 */
382static int vmw_legacy_srf_create(struct vmw_resource *res)
383{
384 struct vmw_private *dev_priv = res->dev_priv;
385 struct vmw_surface *srf;
386 uint32_t submit_size;
387 uint8_t *cmd;
388 int ret;
389
390 if (likely(res->id != -1))
391 return 0;
392
393 srf = vmw_res_to_srf(res);
394 if (unlikely(dev_priv->used_memory_size + res->backup_size >=
395 dev_priv->memory_size))
396 return -EBUSY;
397
398 /*
399 * Alloc id for the resource.
400 */
401
402 ret = vmw_resource_alloc_id(res);
403 if (unlikely(ret != 0)) {
404 DRM_ERROR("Failed to allocate a surface id.\n");
405 goto out_no_id;
406 }
407
408 if (unlikely(res->id >= SVGA3D_MAX_SURFACE_IDS)) {
409 ret = -EBUSY;
410 goto out_no_fifo;
411 }
412
413 /*
414 * Encode surface define- commands.
415 */
416
417 submit_size = vmw_surface_define_size(srf);
418 cmd = VMW_FIFO_RESERVE(dev_priv, submit_size);
419 if (unlikely(!cmd)) {
420 ret = -ENOMEM;
421 goto out_no_fifo;
422 }
423
424 vmw_surface_define_encode(srf, cmd);
425 vmw_fifo_commit(dev_priv, submit_size);
426 vmw_fifo_resource_inc(dev_priv);
427
428 /*
429 * Surface memory usage accounting.
430 */
431
432 dev_priv->used_memory_size += res->backup_size;
433 return 0;
434
435out_no_fifo:
436 vmw_resource_release_id(res);
437out_no_id:
438 return ret;
439}
440
441/**
442 * vmw_legacy_srf_dma - Copy backup data to or from a legacy surface.
443 *
444 * @res: Pointer to a struct vmw_res embedded in a struct
445 * vmw_surface.
446 * @val_buf: Pointer to a struct ttm_validate_buffer containing
447 * information about the backup buffer.
448 * @bind: Boolean wether to DMA to the surface.
449 *
450 * Transfer backup data to or from a legacy surface as part of the
451 * validation process.
452 * May return other errors if the kernel is out of guest resources.
453 * The backup buffer will be fenced or idle upon successful completion,
454 * and if the surface needs persistent backup storage, the backup buffer
455 * will also be returned reserved iff @bind is true.
456 */
457static int vmw_legacy_srf_dma(struct vmw_resource *res,
458 struct ttm_validate_buffer *val_buf,
459 bool bind)
460{
461 SVGAGuestPtr ptr;
462 struct vmw_fence_obj *fence;
463 uint32_t submit_size;
464 struct vmw_surface *srf = vmw_res_to_srf(res);
465 uint8_t *cmd;
466 struct vmw_private *dev_priv = res->dev_priv;
467
468 BUG_ON(!val_buf->bo);
469 submit_size = vmw_surface_dma_size(srf);
470 cmd = VMW_FIFO_RESERVE(dev_priv, submit_size);
471 if (unlikely(!cmd))
472 return -ENOMEM;
473
474 vmw_bo_get_guest_ptr(val_buf->bo, &ptr);
475 vmw_surface_dma_encode(srf, cmd, &ptr, bind);
476
477 vmw_fifo_commit(dev_priv, submit_size);
478
479 /*
480 * Create a fence object and fence the backup buffer.
481 */
482
483 (void) vmw_execbuf_fence_commands(NULL, dev_priv,
484 &fence, NULL);
485
486 vmw_bo_fence_single(val_buf->bo, fence);
487
488 if (likely(fence != NULL))
489 vmw_fence_obj_unreference(&fence);
490
491 return 0;
492}
493
494/**
495 * vmw_legacy_srf_bind - Perform a legacy surface bind as part of the
496 * surface validation process.
497 *
498 * @res: Pointer to a struct vmw_res embedded in a struct
499 * vmw_surface.
500 * @val_buf: Pointer to a struct ttm_validate_buffer containing
501 * information about the backup buffer.
502 *
503 * This function will copy backup data to the surface if the
504 * backup buffer is dirty.
505 */
506static int vmw_legacy_srf_bind(struct vmw_resource *res,
507 struct ttm_validate_buffer *val_buf)
508{
509 if (!res->backup_dirty)
510 return 0;
511
512 return vmw_legacy_srf_dma(res, val_buf, true);
513}
514
515
516/**
517 * vmw_legacy_srf_unbind - Perform a legacy surface unbind as part of the
518 * surface eviction process.
519 *
520 * @res: Pointer to a struct vmw_res embedded in a struct
521 * vmw_surface.
522 * @val_buf: Pointer to a struct ttm_validate_buffer containing
523 * information about the backup buffer.
524 *
525 * This function will copy backup data from the surface.
526 */
527static int vmw_legacy_srf_unbind(struct vmw_resource *res,
528 bool readback,
529 struct ttm_validate_buffer *val_buf)
530{
531 if (unlikely(readback))
532 return vmw_legacy_srf_dma(res, val_buf, false);
533 return 0;
534}
535
536/**
537 * vmw_legacy_srf_destroy - Destroy a device surface as part of a
538 * resource eviction process.
539 *
540 * @res: Pointer to a struct vmw_res embedded in a struct
541 * vmw_surface.
542 */
543static int vmw_legacy_srf_destroy(struct vmw_resource *res)
544{
545 struct vmw_private *dev_priv = res->dev_priv;
546 uint32_t submit_size;
547 uint8_t *cmd;
548
549 BUG_ON(res->id == -1);
550
551 /*
552 * Encode the dma- and surface destroy commands.
553 */
554
555 submit_size = vmw_surface_destroy_size();
556 cmd = VMW_FIFO_RESERVE(dev_priv, submit_size);
557 if (unlikely(!cmd))
558 return -ENOMEM;
559
560 vmw_surface_destroy_encode(res->id, cmd);
561 vmw_fifo_commit(dev_priv, submit_size);
562
563 /*
564 * Surface memory usage accounting.
565 */
566
567 dev_priv->used_memory_size -= res->backup_size;
568
569 /*
570 * Release the surface ID.
571 */
572
573 vmw_resource_release_id(res);
574 vmw_fifo_resource_dec(dev_priv);
575
576 return 0;
577}
578
579
580/**
581 * vmw_surface_init - initialize a struct vmw_surface
582 *
583 * @dev_priv: Pointer to a device private struct.
584 * @srf: Pointer to the struct vmw_surface to initialize.
585 * @res_free: Pointer to a resource destructor used to free
586 * the object.
587 */
588static int vmw_surface_init(struct vmw_private *dev_priv,
589 struct vmw_surface *srf,
590 void (*res_free) (struct vmw_resource *res))
591{
592 int ret;
593 struct vmw_resource *res = &srf->res;
594
595 BUG_ON(!res_free);
596 ret = vmw_resource_init(dev_priv, res, true, res_free,
597 (dev_priv->has_mob) ? &vmw_gb_surface_func :
598 &vmw_legacy_surface_func);
599
600 if (unlikely(ret != 0)) {
601 res_free(res);
602 return ret;
603 }
604
605 /*
606 * The surface won't be visible to hardware until a
607 * surface validate.
608 */
609
610 INIT_LIST_HEAD(&srf->view_list);
611 res->hw_destroy = vmw_hw_surface_destroy;
612 return ret;
613}
614
615/**
616 * vmw_user_surface_base_to_res - TTM base object to resource converter for
617 * user visible surfaces
618 *
619 * @base: Pointer to a TTM base object
620 *
621 * Returns the struct vmw_resource embedded in a struct vmw_surface
622 * for the user-visible object identified by the TTM base object @base.
623 */
624static struct vmw_resource *
625vmw_user_surface_base_to_res(struct ttm_base_object *base)
626{
627 return &(container_of(base, struct vmw_user_surface,
628 prime.base)->srf.res);
629}
630
631/**
632 * vmw_user_surface_free - User visible surface resource destructor
633 *
634 * @res: A struct vmw_resource embedded in a struct vmw_surface.
635 */
636static void vmw_user_surface_free(struct vmw_resource *res)
637{
638 struct vmw_surface *srf = vmw_res_to_srf(res);
639 struct vmw_user_surface *user_srf =
640 container_of(srf, struct vmw_user_surface, srf);
641 struct vmw_private *dev_priv = srf->res.dev_priv;
642 uint32_t size = user_srf->size;
643
644 if (user_srf->master)
645 drm_master_put(&user_srf->master);
646 kfree(srf->offsets);
647 kfree(srf->sizes);
648 kfree(srf->snooper.image);
649 ttm_prime_object_kfree(user_srf, prime);
650 ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
651}
652
653/**
654 * vmw_user_surface_free - User visible surface TTM base object destructor
655 *
656 * @p_base: Pointer to a pointer to a TTM base object
657 * embedded in a struct vmw_user_surface.
658 *
659 * Drops the base object's reference on its resource, and the
660 * pointer pointed to by *p_base is set to NULL.
661 */
662static void vmw_user_surface_base_release(struct ttm_base_object **p_base)
663{
664 struct ttm_base_object *base = *p_base;
665 struct vmw_user_surface *user_srf =
666 container_of(base, struct vmw_user_surface, prime.base);
667 struct vmw_resource *res = &user_srf->srf.res;
668
669 *p_base = NULL;
670 if (user_srf->backup_base)
671 ttm_base_object_unref(&user_srf->backup_base);
672 vmw_resource_unreference(&res);
673}
674
675/**
676 * vmw_user_surface_destroy_ioctl - Ioctl function implementing
677 * the user surface destroy functionality.
678 *
679 * @dev: Pointer to a struct drm_device.
680 * @data: Pointer to data copied from / to user-space.
681 * @file_priv: Pointer to a drm file private structure.
682 */
683int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
684 struct drm_file *file_priv)
685{
686 struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data;
687 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
688
689 return ttm_ref_object_base_unref(tfile, arg->sid, TTM_REF_USAGE);
690}
691
692/**
693 * vmw_user_surface_define_ioctl - Ioctl function implementing
694 * the user surface define functionality.
695 *
696 * @dev: Pointer to a struct drm_device.
697 * @data: Pointer to data copied from / to user-space.
698 * @file_priv: Pointer to a drm file private structure.
699 */
700int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
701 struct drm_file *file_priv)
702{
703 struct vmw_private *dev_priv = vmw_priv(dev);
704 struct vmw_user_surface *user_srf;
705 struct vmw_surface *srf;
706 struct vmw_resource *res;
707 struct vmw_resource *tmp;
708 union drm_vmw_surface_create_arg *arg =
709 (union drm_vmw_surface_create_arg *)data;
710 struct drm_vmw_surface_create_req *req = &arg->req;
711 struct drm_vmw_surface_arg *rep = &arg->rep;
712 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
713 struct ttm_operation_ctx ctx = {
714 .interruptible = true,
715 .no_wait_gpu = false
716 };
717 int ret;
718 int i, j;
719 uint32_t cur_bo_offset;
720 struct drm_vmw_size *cur_size;
721 struct vmw_surface_offset *cur_offset;
722 uint32_t num_sizes;
723 uint32_t size;
724 const struct svga3d_surface_desc *desc;
725
726 if (unlikely(vmw_user_surface_size == 0))
727 vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
728 VMW_IDA_ACC_SIZE + TTM_OBJ_EXTRA_SIZE;
729
730 num_sizes = 0;
731 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
732 if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS)
733 return -EINVAL;
734 num_sizes += req->mip_levels[i];
735 }
736
737 if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS ||
738 num_sizes == 0)
739 return -EINVAL;
740
741 size = vmw_user_surface_size +
742 ttm_round_pot(num_sizes * sizeof(struct drm_vmw_size)) +
743 ttm_round_pot(num_sizes * sizeof(struct vmw_surface_offset));
744
745 desc = svga3dsurface_get_desc(req->format);
746 if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
747 VMW_DEBUG_USER("Invalid format %d for surface creation.\n",
748 req->format);
749 return -EINVAL;
750 }
751
752 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
753 if (unlikely(ret != 0))
754 return ret;
755
756 ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
757 size, &ctx);
758 if (unlikely(ret != 0)) {
759 if (ret != -ERESTARTSYS)
760 DRM_ERROR("Out of graphics memory for surface.\n");
761 goto out_unlock;
762 }
763
764 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
765 if (unlikely(!user_srf)) {
766 ret = -ENOMEM;
767 goto out_no_user_srf;
768 }
769
770 srf = &user_srf->srf;
771 res = &srf->res;
772
773 /* Driver internally stores as 64-bit flags */
774 srf->flags = (SVGA3dSurfaceAllFlags)req->flags;
775 srf->format = req->format;
776 srf->scanout = req->scanout;
777
778 memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels));
779 srf->num_sizes = num_sizes;
780 user_srf->size = size;
781 srf->sizes = memdup_user((struct drm_vmw_size __user *)(unsigned long)
782 req->size_addr,
783 sizeof(*srf->sizes) * srf->num_sizes);
784 if (IS_ERR(srf->sizes)) {
785 ret = PTR_ERR(srf->sizes);
786 goto out_no_sizes;
787 }
788 srf->offsets = kmalloc_array(srf->num_sizes,
789 sizeof(*srf->offsets),
790 GFP_KERNEL);
791 if (unlikely(!srf->offsets)) {
792 ret = -ENOMEM;
793 goto out_no_offsets;
794 }
795
796 srf->base_size = *srf->sizes;
797 srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
798 srf->multisample_count = 0;
799 srf->multisample_pattern = SVGA3D_MS_PATTERN_NONE;
800 srf->quality_level = SVGA3D_MS_QUALITY_NONE;
801
802 cur_bo_offset = 0;
803 cur_offset = srf->offsets;
804 cur_size = srf->sizes;
805
806 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
807 for (j = 0; j < srf->mip_levels[i]; ++j) {
808 uint32_t stride = svga3dsurface_calculate_pitch
809 (desc, cur_size);
810
811 cur_offset->face = i;
812 cur_offset->mip = j;
813 cur_offset->bo_offset = cur_bo_offset;
814 cur_bo_offset += svga3dsurface_get_image_buffer_size
815 (desc, cur_size, stride);
816 ++cur_offset;
817 ++cur_size;
818 }
819 }
820 res->backup_size = cur_bo_offset;
821 if (srf->scanout &&
822 srf->num_sizes == 1 &&
823 srf->sizes[0].width == 64 &&
824 srf->sizes[0].height == 64 &&
825 srf->format == SVGA3D_A8R8G8B8) {
826
827 srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL);
828 if (!srf->snooper.image) {
829 DRM_ERROR("Failed to allocate cursor_image\n");
830 ret = -ENOMEM;
831 goto out_no_copy;
832 }
833 } else {
834 srf->snooper.image = NULL;
835 }
836
837 user_srf->prime.base.shareable = false;
838 user_srf->prime.base.tfile = NULL;
839 if (drm_is_primary_client(file_priv))
840 user_srf->master = drm_master_get(file_priv->master);
841
842 /**
843 * From this point, the generic resource management functions
844 * destroy the object on failure.
845 */
846
847 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
848 if (unlikely(ret != 0))
849 goto out_unlock;
850
851 /*
852 * A gb-aware client referencing a shared surface will
853 * expect a backup buffer to be present.
854 */
855 if (dev_priv->has_mob && req->shareable) {
856 uint32_t backup_handle;
857
858 ret = vmw_user_bo_alloc(dev_priv, tfile,
859 res->backup_size,
860 true,
861 &backup_handle,
862 &res->backup,
863 &user_srf->backup_base);
864 if (unlikely(ret != 0)) {
865 vmw_resource_unreference(&res);
866 goto out_unlock;
867 }
868 }
869
870 tmp = vmw_resource_reference(&srf->res);
871 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
872 req->shareable, VMW_RES_SURFACE,
873 &vmw_user_surface_base_release, NULL);
874
875 if (unlikely(ret != 0)) {
876 vmw_resource_unreference(&tmp);
877 vmw_resource_unreference(&res);
878 goto out_unlock;
879 }
880
881 rep->sid = user_srf->prime.base.handle;
882 vmw_resource_unreference(&res);
883
884 ttm_read_unlock(&dev_priv->reservation_sem);
885 return 0;
886out_no_copy:
887 kfree(srf->offsets);
888out_no_offsets:
889 kfree(srf->sizes);
890out_no_sizes:
891 ttm_prime_object_kfree(user_srf, prime);
892out_no_user_srf:
893 ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
894out_unlock:
895 ttm_read_unlock(&dev_priv->reservation_sem);
896 return ret;
897}
898
899
900static int
901vmw_surface_handle_reference(struct vmw_private *dev_priv,
902 struct drm_file *file_priv,
903 uint32_t u_handle,
904 enum drm_vmw_handle_type handle_type,
905 struct ttm_base_object **base_p)
906{
907 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
908 struct vmw_user_surface *user_srf;
909 uint32_t handle;
910 struct ttm_base_object *base;
911 int ret;
912 bool require_exist = false;
913
914 if (handle_type == DRM_VMW_HANDLE_PRIME) {
915 ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle);
916 if (unlikely(ret != 0))
917 return ret;
918 } else {
919 if (unlikely(drm_is_render_client(file_priv)))
920 require_exist = true;
921
922 handle = u_handle;
923 }
924
925 ret = -EINVAL;
926 base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle);
927 if (unlikely(!base)) {
928 VMW_DEBUG_USER("Could not find surface to reference.\n");
929 goto out_no_lookup;
930 }
931
932 if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE)) {
933 VMW_DEBUG_USER("Referenced object is not a surface.\n");
934 goto out_bad_resource;
935 }
936
937 if (handle_type != DRM_VMW_HANDLE_PRIME) {
938 user_srf = container_of(base, struct vmw_user_surface,
939 prime.base);
940
941 /*
942 * Make sure the surface creator has the same
943 * authenticating master, or is already registered with us.
944 */
945 if (drm_is_primary_client(file_priv) &&
946 user_srf->master != file_priv->master)
947 require_exist = true;
948
949 ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL,
950 require_exist);
951 if (unlikely(ret != 0)) {
952 DRM_ERROR("Could not add a reference to a surface.\n");
953 goto out_bad_resource;
954 }
955 }
956
957 *base_p = base;
958 return 0;
959
960out_bad_resource:
961 ttm_base_object_unref(&base);
962out_no_lookup:
963 if (handle_type == DRM_VMW_HANDLE_PRIME)
964 (void) ttm_ref_object_base_unref(tfile, handle, TTM_REF_USAGE);
965
966 return ret;
967}
968
969/**
970 * vmw_user_surface_define_ioctl - Ioctl function implementing
971 * the user surface reference functionality.
972 *
973 * @dev: Pointer to a struct drm_device.
974 * @data: Pointer to data copied from / to user-space.
975 * @file_priv: Pointer to a drm file private structure.
976 */
977int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
978 struct drm_file *file_priv)
979{
980 struct vmw_private *dev_priv = vmw_priv(dev);
981 union drm_vmw_surface_reference_arg *arg =
982 (union drm_vmw_surface_reference_arg *)data;
983 struct drm_vmw_surface_arg *req = &arg->req;
984 struct drm_vmw_surface_create_req *rep = &arg->rep;
985 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
986 struct vmw_surface *srf;
987 struct vmw_user_surface *user_srf;
988 struct drm_vmw_size __user *user_sizes;
989 struct ttm_base_object *base;
990 int ret;
991
992 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
993 req->handle_type, &base);
994 if (unlikely(ret != 0))
995 return ret;
996
997 user_srf = container_of(base, struct vmw_user_surface, prime.base);
998 srf = &user_srf->srf;
999
1000 /* Downcast of flags when sending back to user space */
1001 rep->flags = (uint32_t)srf->flags;
1002 rep->format = srf->format;
1003 memcpy(rep->mip_levels, srf->mip_levels, sizeof(srf->mip_levels));
1004 user_sizes = (struct drm_vmw_size __user *)(unsigned long)
1005 rep->size_addr;
1006
1007 if (user_sizes)
1008 ret = copy_to_user(user_sizes, &srf->base_size,
1009 sizeof(srf->base_size));
1010 if (unlikely(ret != 0)) {
1011 VMW_DEBUG_USER("copy_to_user failed %p %u\n", user_sizes,
1012 srf->num_sizes);
1013 ttm_ref_object_base_unref(tfile, base->handle, TTM_REF_USAGE);
1014 ret = -EFAULT;
1015 }
1016
1017 ttm_base_object_unref(&base);
1018
1019 return ret;
1020}
1021
1022/**
1023 * vmw_surface_define_encode - Encode a surface_define command.
1024 *
1025 * @srf: Pointer to a struct vmw_surface object.
1026 * @cmd_space: Pointer to memory area in which the commands should be encoded.
1027 */
1028static int vmw_gb_surface_create(struct vmw_resource *res)
1029{
1030 struct vmw_private *dev_priv = res->dev_priv;
1031 struct vmw_surface *srf = vmw_res_to_srf(res);
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
1047 if (likely(res->id != -1))
1048 return 0;
1049
1050 vmw_fifo_resource_inc(dev_priv);
1051 ret = vmw_resource_alloc_id(res);
1052 if (unlikely(ret != 0)) {
1053 DRM_ERROR("Failed to allocate a surface id.\n");
1054 goto out_no_id;
1055 }
1056
1057 if (unlikely(res->id >= VMWGFX_NUM_GB_SURFACE)) {
1058 ret = -EBUSY;
1059 goto out_no_fifo;
1060 }
1061
1062 if (dev_priv->has_sm4_1 && srf->array_size > 0) {
1063 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V3;
1064 cmd_len = sizeof(cmd3->body);
1065 submit_len = sizeof(*cmd3);
1066 } else if (srf->array_size > 0) {
1067 /* has_dx checked on creation time. */
1068 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V2;
1069 cmd_len = sizeof(cmd2->body);
1070 submit_len = sizeof(*cmd2);
1071 } else {
1072 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE;
1073 cmd_len = sizeof(cmd->body);
1074 submit_len = sizeof(*cmd);
1075 }
1076
1077 cmd = VMW_FIFO_RESERVE(dev_priv, submit_len);
1078 cmd2 = (typeof(cmd2))cmd;
1079 cmd3 = (typeof(cmd3))cmd;
1080 if (unlikely(!cmd)) {
1081 ret = -ENOMEM;
1082 goto out_no_fifo;
1083 }
1084
1085 if (dev_priv->has_sm4_1 && srf->array_size > 0) {
1086 cmd3->header.id = cmd_id;
1087 cmd3->header.size = cmd_len;
1088 cmd3->body.sid = srf->res.id;
1089 cmd3->body.surfaceFlags = srf->flags;
1090 cmd3->body.format = srf->format;
1091 cmd3->body.numMipLevels = srf->mip_levels[0];
1092 cmd3->body.multisampleCount = srf->multisample_count;
1093 cmd3->body.multisamplePattern = srf->multisample_pattern;
1094 cmd3->body.qualityLevel = srf->quality_level;
1095 cmd3->body.autogenFilter = srf->autogen_filter;
1096 cmd3->body.size.width = srf->base_size.width;
1097 cmd3->body.size.height = srf->base_size.height;
1098 cmd3->body.size.depth = srf->base_size.depth;
1099 cmd3->body.arraySize = srf->array_size;
1100 } else if (srf->array_size > 0) {
1101 cmd2->header.id = cmd_id;
1102 cmd2->header.size = cmd_len;
1103 cmd2->body.sid = srf->res.id;
1104 cmd2->body.surfaceFlags = srf->flags;
1105 cmd2->body.format = srf->format;
1106 cmd2->body.numMipLevels = srf->mip_levels[0];
1107 cmd2->body.multisampleCount = srf->multisample_count;
1108 cmd2->body.autogenFilter = srf->autogen_filter;
1109 cmd2->body.size.width = srf->base_size.width;
1110 cmd2->body.size.height = srf->base_size.height;
1111 cmd2->body.size.depth = srf->base_size.depth;
1112 cmd2->body.arraySize = srf->array_size;
1113 } else {
1114 cmd->header.id = cmd_id;
1115 cmd->header.size = cmd_len;
1116 cmd->body.sid = srf->res.id;
1117 cmd->body.surfaceFlags = srf->flags;
1118 cmd->body.format = srf->format;
1119 cmd->body.numMipLevels = srf->mip_levels[0];
1120 cmd->body.multisampleCount = srf->multisample_count;
1121 cmd->body.autogenFilter = srf->autogen_filter;
1122 cmd->body.size.width = srf->base_size.width;
1123 cmd->body.size.height = srf->base_size.height;
1124 cmd->body.size.depth = srf->base_size.depth;
1125 }
1126
1127 vmw_fifo_commit(dev_priv, submit_len);
1128
1129 return 0;
1130
1131out_no_fifo:
1132 vmw_resource_release_id(res);
1133out_no_id:
1134 vmw_fifo_resource_dec(dev_priv);
1135 return ret;
1136}
1137
1138
1139static int vmw_gb_surface_bind(struct vmw_resource *res,
1140 struct ttm_validate_buffer *val_buf)
1141{
1142 struct vmw_private *dev_priv = res->dev_priv;
1143 struct {
1144 SVGA3dCmdHeader header;
1145 SVGA3dCmdBindGBSurface body;
1146 } *cmd1;
1147 struct {
1148 SVGA3dCmdHeader header;
1149 SVGA3dCmdUpdateGBSurface body;
1150 } *cmd2;
1151 uint32_t submit_size;
1152 struct ttm_buffer_object *bo = val_buf->bo;
1153
1154 BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
1155
1156 submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0);
1157
1158 cmd1 = VMW_FIFO_RESERVE(dev_priv, submit_size);
1159 if (unlikely(!cmd1))
1160 return -ENOMEM;
1161
1162 cmd1->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
1163 cmd1->header.size = sizeof(cmd1->body);
1164 cmd1->body.sid = res->id;
1165 cmd1->body.mobid = bo->mem.start;
1166 if (res->backup_dirty) {
1167 cmd2 = (void *) &cmd1[1];
1168 cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE;
1169 cmd2->header.size = sizeof(cmd2->body);
1170 cmd2->body.sid = res->id;
1171 res->backup_dirty = false;
1172 }
1173 vmw_fifo_commit(dev_priv, submit_size);
1174
1175 return 0;
1176}
1177
1178static int vmw_gb_surface_unbind(struct vmw_resource *res,
1179 bool readback,
1180 struct ttm_validate_buffer *val_buf)
1181{
1182 struct vmw_private *dev_priv = res->dev_priv;
1183 struct ttm_buffer_object *bo = val_buf->bo;
1184 struct vmw_fence_obj *fence;
1185
1186 struct {
1187 SVGA3dCmdHeader header;
1188 SVGA3dCmdReadbackGBSurface body;
1189 } *cmd1;
1190 struct {
1191 SVGA3dCmdHeader header;
1192 SVGA3dCmdInvalidateGBSurface body;
1193 } *cmd2;
1194 struct {
1195 SVGA3dCmdHeader header;
1196 SVGA3dCmdBindGBSurface body;
1197 } *cmd3;
1198 uint32_t submit_size;
1199 uint8_t *cmd;
1200
1201
1202 BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
1203
1204 submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2));
1205 cmd = VMW_FIFO_RESERVE(dev_priv, submit_size);
1206 if (unlikely(!cmd))
1207 return -ENOMEM;
1208
1209 if (readback) {
1210 cmd1 = (void *) cmd;
1211 cmd1->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE;
1212 cmd1->header.size = sizeof(cmd1->body);
1213 cmd1->body.sid = res->id;
1214 cmd3 = (void *) &cmd1[1];
1215 } else {
1216 cmd2 = (void *) cmd;
1217 cmd2->header.id = SVGA_3D_CMD_INVALIDATE_GB_SURFACE;
1218 cmd2->header.size = sizeof(cmd2->body);
1219 cmd2->body.sid = res->id;
1220 cmd3 = (void *) &cmd2[1];
1221 }
1222
1223 cmd3->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
1224 cmd3->header.size = sizeof(cmd3->body);
1225 cmd3->body.sid = res->id;
1226 cmd3->body.mobid = SVGA3D_INVALID_ID;
1227
1228 vmw_fifo_commit(dev_priv, submit_size);
1229
1230 /*
1231 * Create a fence object and fence the backup buffer.
1232 */
1233
1234 (void) vmw_execbuf_fence_commands(NULL, dev_priv,
1235 &fence, NULL);
1236
1237 vmw_bo_fence_single(val_buf->bo, fence);
1238
1239 if (likely(fence != NULL))
1240 vmw_fence_obj_unreference(&fence);
1241
1242 return 0;
1243}
1244
1245static int vmw_gb_surface_destroy(struct vmw_resource *res)
1246{
1247 struct vmw_private *dev_priv = res->dev_priv;
1248 struct vmw_surface *srf = vmw_res_to_srf(res);
1249 struct {
1250 SVGA3dCmdHeader header;
1251 SVGA3dCmdDestroyGBSurface body;
1252 } *cmd;
1253
1254 if (likely(res->id == -1))
1255 return 0;
1256
1257 mutex_lock(&dev_priv->binding_mutex);
1258 vmw_view_surface_list_destroy(dev_priv, &srf->view_list);
1259 vmw_binding_res_list_scrub(&res->binding_head);
1260
1261 cmd = VMW_FIFO_RESERVE(dev_priv, sizeof(*cmd));
1262 if (unlikely(!cmd)) {
1263 mutex_unlock(&dev_priv->binding_mutex);
1264 return -ENOMEM;
1265 }
1266
1267 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SURFACE;
1268 cmd->header.size = sizeof(cmd->body);
1269 cmd->body.sid = res->id;
1270 vmw_fifo_commit(dev_priv, sizeof(*cmd));
1271 mutex_unlock(&dev_priv->binding_mutex);
1272 vmw_resource_release_id(res);
1273 vmw_fifo_resource_dec(dev_priv);
1274
1275 return 0;
1276}
1277
1278
1279/**
1280 * vmw_gb_surface_define_ioctl - Ioctl function implementing
1281 * the user surface define functionality.
1282 *
1283 * @dev: Pointer to a struct drm_device.
1284 * @data: Pointer to data copied from / to user-space.
1285 * @file_priv: Pointer to a drm file private structure.
1286 */
1287int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1288 struct drm_file *file_priv)
1289{
1290 union drm_vmw_gb_surface_create_arg *arg =
1291 (union drm_vmw_gb_surface_create_arg *)data;
1292 struct drm_vmw_gb_surface_create_rep *rep = &arg->rep;
1293 struct drm_vmw_gb_surface_create_ext_req req_ext;
1294
1295 req_ext.base = arg->req;
1296 req_ext.version = drm_vmw_gb_surface_v1;
1297 req_ext.svga3d_flags_upper_32_bits = 0;
1298 req_ext.multisample_pattern = SVGA3D_MS_PATTERN_NONE;
1299 req_ext.quality_level = SVGA3D_MS_QUALITY_NONE;
1300 req_ext.must_be_zero = 0;
1301
1302 return vmw_gb_surface_define_internal(dev, &req_ext, rep, file_priv);
1303}
1304
1305/**
1306 * vmw_gb_surface_reference_ioctl - Ioctl function implementing
1307 * the user surface reference functionality.
1308 *
1309 * @dev: Pointer to a struct drm_device.
1310 * @data: Pointer to data copied from / to user-space.
1311 * @file_priv: Pointer to a drm file private structure.
1312 */
1313int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1314 struct drm_file *file_priv)
1315{
1316 union drm_vmw_gb_surface_reference_arg *arg =
1317 (union drm_vmw_gb_surface_reference_arg *)data;
1318 struct drm_vmw_surface_arg *req = &arg->req;
1319 struct drm_vmw_gb_surface_ref_rep *rep = &arg->rep;
1320 struct drm_vmw_gb_surface_ref_ext_rep rep_ext;
1321 int ret;
1322
1323 ret = vmw_gb_surface_reference_internal(dev, req, &rep_ext, file_priv);
1324
1325 if (unlikely(ret != 0))
1326 return ret;
1327
1328 rep->creq = rep_ext.creq.base;
1329 rep->crep = rep_ext.crep;
1330
1331 return ret;
1332}
1333
1334/**
1335 * vmw_surface_gb_priv_define - Define a private GB surface
1336 *
1337 * @dev: Pointer to a struct drm_device
1338 * @user_accounting_size: Used to track user-space memory usage, set
1339 * to 0 for kernel mode only memory
1340 * @svga3d_flags: SVGA3d surface flags for the device
1341 * @format: requested surface format
1342 * @for_scanout: true if inteded to be used for scanout buffer
1343 * @num_mip_levels: number of MIP levels
1344 * @multisample_count:
1345 * @array_size: Surface array size.
1346 * @size: width, heigh, depth of the surface requested
1347 * @multisample_pattern: Multisampling pattern when msaa is supported
1348 * @quality_level: Precision settings
1349 * @user_srf_out: allocated user_srf. Set to NULL on failure.
1350 *
1351 * GB surfaces allocated by this function will not have a user mode handle, and
1352 * thus will only be visible to vmwgfx. For optimization reasons the
1353 * surface may later be given a user mode handle by another function to make
1354 * it available to user mode drivers.
1355 */
1356int vmw_surface_gb_priv_define(struct drm_device *dev,
1357 uint32_t user_accounting_size,
1358 SVGA3dSurfaceAllFlags svga3d_flags,
1359 SVGA3dSurfaceFormat format,
1360 bool for_scanout,
1361 uint32_t num_mip_levels,
1362 uint32_t multisample_count,
1363 uint32_t array_size,
1364 struct drm_vmw_size size,
1365 SVGA3dMSPattern multisample_pattern,
1366 SVGA3dMSQualityLevel quality_level,
1367 struct vmw_surface **srf_out)
1368{
1369 struct vmw_private *dev_priv = vmw_priv(dev);
1370 struct vmw_user_surface *user_srf;
1371 struct ttm_operation_ctx ctx = {
1372 .interruptible = true,
1373 .no_wait_gpu = false
1374 };
1375 struct vmw_surface *srf;
1376 int ret;
1377 u32 num_layers = 1;
1378 u32 sample_count = 1;
1379
1380 *srf_out = NULL;
1381
1382 if (for_scanout) {
1383 if (!svga3dsurface_is_screen_target_format(format)) {
1384 VMW_DEBUG_USER("Invalid Screen Target surface format.");
1385 return -EINVAL;
1386 }
1387
1388 if (size.width > dev_priv->texture_max_width ||
1389 size.height > dev_priv->texture_max_height) {
1390 VMW_DEBUG_USER("%ux%u\n, exceeds max surface size %ux%u",
1391 size.width, size.height,
1392 dev_priv->texture_max_width,
1393 dev_priv->texture_max_height);
1394 return -EINVAL;
1395 }
1396 } else {
1397 const struct svga3d_surface_desc *desc;
1398
1399 desc = svga3dsurface_get_desc(format);
1400 if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
1401 VMW_DEBUG_USER("Invalid surface format.\n");
1402 return -EINVAL;
1403 }
1404 }
1405
1406 /* array_size must be null for non-GL3 host. */
1407 if (array_size > 0 && !dev_priv->has_dx) {
1408 VMW_DEBUG_USER("Tried to create DX surface on non-DX host.\n");
1409 return -EINVAL;
1410 }
1411
1412 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1413 if (unlikely(ret != 0))
1414 return ret;
1415
1416 ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
1417 user_accounting_size, &ctx);
1418 if (unlikely(ret != 0)) {
1419 if (ret != -ERESTARTSYS)
1420 DRM_ERROR("Out of graphics memory for surface"
1421 " creation.\n");
1422 goto out_unlock;
1423 }
1424
1425 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
1426 if (unlikely(!user_srf)) {
1427 ret = -ENOMEM;
1428 goto out_no_user_srf;
1429 }
1430
1431 *srf_out = &user_srf->srf;
1432 user_srf->size = user_accounting_size;
1433 user_srf->prime.base.shareable = false;
1434 user_srf->prime.base.tfile = NULL;
1435
1436 srf = &user_srf->srf;
1437 srf->flags = svga3d_flags;
1438 srf->format = format;
1439 srf->scanout = for_scanout;
1440 srf->mip_levels[0] = num_mip_levels;
1441 srf->num_sizes = 1;
1442 srf->sizes = NULL;
1443 srf->offsets = NULL;
1444 srf->base_size = size;
1445 srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
1446 srf->array_size = array_size;
1447 srf->multisample_count = multisample_count;
1448 srf->multisample_pattern = multisample_pattern;
1449 srf->quality_level = quality_level;
1450
1451 if (array_size)
1452 num_layers = array_size;
1453 else if (svga3d_flags & SVGA3D_SURFACE_CUBEMAP)
1454 num_layers = SVGA3D_MAX_SURFACE_FACES;
1455
1456 if (srf->flags & SVGA3D_SURFACE_MULTISAMPLE)
1457 sample_count = srf->multisample_count;
1458
1459 srf->res.backup_size =
1460 svga3dsurface_get_serialized_size_extended(srf->format,
1461 srf->base_size,
1462 srf->mip_levels[0],
1463 num_layers,
1464 sample_count);
1465
1466 if (srf->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT)
1467 srf->res.backup_size += sizeof(SVGA3dDXSOState);
1468
1469 /*
1470 * Don't set SVGA3D_SURFACE_SCREENTARGET flag for a scanout surface with
1471 * size greater than STDU max width/height. This is really a workaround
1472 * to support creation of big framebuffer requested by some user-space
1473 * for whole topology. That big framebuffer won't really be used for
1474 * binding with screen target as during prepare_fb a separate surface is
1475 * created so it's safe to ignore SVGA3D_SURFACE_SCREENTARGET flag.
1476 */
1477 if (dev_priv->active_display_unit == vmw_du_screen_target &&
1478 for_scanout && size.width <= dev_priv->stdu_max_width &&
1479 size.height <= dev_priv->stdu_max_height)
1480 srf->flags |= SVGA3D_SURFACE_SCREENTARGET;
1481
1482 /*
1483 * From this point, the generic resource management functions
1484 * destroy the object on failure.
1485 */
1486 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
1487
1488 ttm_read_unlock(&dev_priv->reservation_sem);
1489 return ret;
1490
1491out_no_user_srf:
1492 ttm_mem_global_free(vmw_mem_glob(dev_priv), user_accounting_size);
1493
1494out_unlock:
1495 ttm_read_unlock(&dev_priv->reservation_sem);
1496 return ret;
1497}
1498
1499/**
1500 * vmw_gb_surface_define_ext_ioctl - Ioctl function implementing
1501 * the user surface define functionality.
1502 *
1503 * @dev: Pointer to a struct drm_device.
1504 * @data: Pointer to data copied from / to user-space.
1505 * @file_priv: Pointer to a drm file private structure.
1506 */
1507int vmw_gb_surface_define_ext_ioctl(struct drm_device *dev, void *data,
1508 struct drm_file *file_priv)
1509{
1510 union drm_vmw_gb_surface_create_ext_arg *arg =
1511 (union drm_vmw_gb_surface_create_ext_arg *)data;
1512 struct drm_vmw_gb_surface_create_ext_req *req = &arg->req;
1513 struct drm_vmw_gb_surface_create_rep *rep = &arg->rep;
1514
1515 return vmw_gb_surface_define_internal(dev, req, rep, file_priv);
1516}
1517
1518/**
1519 * vmw_gb_surface_reference_ext_ioctl - Ioctl function implementing
1520 * the user surface reference functionality.
1521 *
1522 * @dev: Pointer to a struct drm_device.
1523 * @data: Pointer to data copied from / to user-space.
1524 * @file_priv: Pointer to a drm file private structure.
1525 */
1526int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev, void *data,
1527 struct drm_file *file_priv)
1528{
1529 union drm_vmw_gb_surface_reference_ext_arg *arg =
1530 (union drm_vmw_gb_surface_reference_ext_arg *)data;
1531 struct drm_vmw_surface_arg *req = &arg->req;
1532 struct drm_vmw_gb_surface_ref_ext_rep *rep = &arg->rep;
1533
1534 return vmw_gb_surface_reference_internal(dev, req, rep, file_priv);
1535}
1536
1537/**
1538 * vmw_gb_surface_define_internal - Ioctl function implementing
1539 * the user surface define functionality.
1540 *
1541 * @dev: Pointer to a struct drm_device.
1542 * @req: Request argument from user-space.
1543 * @rep: Response argument to user-space.
1544 * @file_priv: Pointer to a drm file private structure.
1545 */
1546static int
1547vmw_gb_surface_define_internal(struct drm_device *dev,
1548 struct drm_vmw_gb_surface_create_ext_req *req,
1549 struct drm_vmw_gb_surface_create_rep *rep,
1550 struct drm_file *file_priv)
1551{
1552 struct vmw_private *dev_priv = vmw_priv(dev);
1553 struct vmw_user_surface *user_srf;
1554 struct vmw_surface *srf;
1555 struct vmw_resource *res;
1556 struct vmw_resource *tmp;
1557 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1558 int ret;
1559 uint32_t size;
1560 uint32_t backup_handle = 0;
1561 SVGA3dSurfaceAllFlags svga3d_flags_64 =
1562 SVGA3D_FLAGS_64(req->svga3d_flags_upper_32_bits,
1563 req->base.svga3d_flags);
1564
1565 if (!dev_priv->has_sm4_1) {
1566 /*
1567 * If SM4_1 is not support then cannot send 64-bit flag to
1568 * device.
1569 */
1570 if (req->svga3d_flags_upper_32_bits != 0)
1571 return -EINVAL;
1572
1573 if (req->base.multisample_count != 0)
1574 return -EINVAL;
1575
1576 if (req->multisample_pattern != SVGA3D_MS_PATTERN_NONE)
1577 return -EINVAL;
1578
1579 if (req->quality_level != SVGA3D_MS_QUALITY_NONE)
1580 return -EINVAL;
1581 }
1582
1583 if ((svga3d_flags_64 & SVGA3D_SURFACE_MULTISAMPLE) &&
1584 req->base.multisample_count == 0)
1585 return -EINVAL;
1586
1587 if (req->base.mip_levels > DRM_VMW_MAX_MIP_LEVELS)
1588 return -EINVAL;
1589
1590 if (unlikely(vmw_user_surface_size == 0))
1591 vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
1592 VMW_IDA_ACC_SIZE + TTM_OBJ_EXTRA_SIZE;
1593
1594 size = vmw_user_surface_size;
1595
1596 /* Define a surface based on the parameters. */
1597 ret = vmw_surface_gb_priv_define(dev,
1598 size,
1599 svga3d_flags_64,
1600 req->base.format,
1601 req->base.drm_surface_flags &
1602 drm_vmw_surface_flag_scanout,
1603 req->base.mip_levels,
1604 req->base.multisample_count,
1605 req->base.array_size,
1606 req->base.base_size,
1607 req->multisample_pattern,
1608 req->quality_level,
1609 &srf);
1610 if (unlikely(ret != 0))
1611 return ret;
1612
1613 user_srf = container_of(srf, struct vmw_user_surface, srf);
1614 if (drm_is_primary_client(file_priv))
1615 user_srf->master = drm_master_get(file_priv->master);
1616
1617 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1618 if (unlikely(ret != 0))
1619 return ret;
1620
1621 res = &user_srf->srf.res;
1622
1623 if (req->base.buffer_handle != SVGA3D_INVALID_ID) {
1624 ret = vmw_user_bo_lookup(tfile, req->base.buffer_handle,
1625 &res->backup,
1626 &user_srf->backup_base);
1627 if (ret == 0) {
1628 if (res->backup->base.num_pages * PAGE_SIZE <
1629 res->backup_size) {
1630 VMW_DEBUG_USER("Surface backup buffer too small.\n");
1631 vmw_bo_unreference(&res->backup);
1632 ret = -EINVAL;
1633 goto out_unlock;
1634 } else {
1635 backup_handle = req->base.buffer_handle;
1636 }
1637 }
1638 } else if (req->base.drm_surface_flags &
1639 drm_vmw_surface_flag_create_buffer)
1640 ret = vmw_user_bo_alloc(dev_priv, tfile,
1641 res->backup_size,
1642 req->base.drm_surface_flags &
1643 drm_vmw_surface_flag_shareable,
1644 &backup_handle,
1645 &res->backup,
1646 &user_srf->backup_base);
1647
1648 if (unlikely(ret != 0)) {
1649 vmw_resource_unreference(&res);
1650 goto out_unlock;
1651 }
1652
1653 tmp = vmw_resource_reference(res);
1654 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
1655 req->base.drm_surface_flags &
1656 drm_vmw_surface_flag_shareable,
1657 VMW_RES_SURFACE,
1658 &vmw_user_surface_base_release, NULL);
1659
1660 if (unlikely(ret != 0)) {
1661 vmw_resource_unreference(&tmp);
1662 vmw_resource_unreference(&res);
1663 goto out_unlock;
1664 }
1665
1666 rep->handle = user_srf->prime.base.handle;
1667 rep->backup_size = res->backup_size;
1668 if (res->backup) {
1669 rep->buffer_map_handle =
1670 drm_vma_node_offset_addr(&res->backup->base.base.vma_node);
1671 rep->buffer_size = res->backup->base.num_pages * PAGE_SIZE;
1672 rep->buffer_handle = backup_handle;
1673 } else {
1674 rep->buffer_map_handle = 0;
1675 rep->buffer_size = 0;
1676 rep->buffer_handle = SVGA3D_INVALID_ID;
1677 }
1678
1679 vmw_resource_unreference(&res);
1680
1681out_unlock:
1682 ttm_read_unlock(&dev_priv->reservation_sem);
1683 return ret;
1684}
1685
1686/**
1687 * vmw_gb_surface_reference_internal - Ioctl function implementing
1688 * the user surface reference functionality.
1689 *
1690 * @dev: Pointer to a struct drm_device.
1691 * @req: Pointer to user-space request surface arg.
1692 * @rep: Pointer to response to user-space.
1693 * @file_priv: Pointer to a drm file private structure.
1694 */
1695static int
1696vmw_gb_surface_reference_internal(struct drm_device *dev,
1697 struct drm_vmw_surface_arg *req,
1698 struct drm_vmw_gb_surface_ref_ext_rep *rep,
1699 struct drm_file *file_priv)
1700{
1701 struct vmw_private *dev_priv = vmw_priv(dev);
1702 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1703 struct vmw_surface *srf;
1704 struct vmw_user_surface *user_srf;
1705 struct ttm_base_object *base;
1706 uint32_t backup_handle;
1707 int ret = -EINVAL;
1708
1709 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
1710 req->handle_type, &base);
1711 if (unlikely(ret != 0))
1712 return ret;
1713
1714 user_srf = container_of(base, struct vmw_user_surface, prime.base);
1715 srf = &user_srf->srf;
1716 if (!srf->res.backup) {
1717 DRM_ERROR("Shared GB surface is missing a backup buffer.\n");
1718 goto out_bad_resource;
1719 }
1720
1721 mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */
1722 ret = vmw_user_bo_reference(tfile, srf->res.backup, &backup_handle);
1723 mutex_unlock(&dev_priv->cmdbuf_mutex);
1724
1725 if (unlikely(ret != 0)) {
1726 DRM_ERROR("Could not add a reference to a GB surface "
1727 "backup buffer.\n");
1728 (void) ttm_ref_object_base_unref(tfile, base->handle,
1729 TTM_REF_USAGE);
1730 goto out_bad_resource;
1731 }
1732
1733 rep->creq.base.svga3d_flags = SVGA3D_FLAGS_LOWER_32(srf->flags);
1734 rep->creq.base.format = srf->format;
1735 rep->creq.base.mip_levels = srf->mip_levels[0];
1736 rep->creq.base.drm_surface_flags = 0;
1737 rep->creq.base.multisample_count = srf->multisample_count;
1738 rep->creq.base.autogen_filter = srf->autogen_filter;
1739 rep->creq.base.array_size = srf->array_size;
1740 rep->creq.base.buffer_handle = backup_handle;
1741 rep->creq.base.base_size = srf->base_size;
1742 rep->crep.handle = user_srf->prime.base.handle;
1743 rep->crep.backup_size = srf->res.backup_size;
1744 rep->crep.buffer_handle = backup_handle;
1745 rep->crep.buffer_map_handle =
1746 drm_vma_node_offset_addr(&srf->res.backup->base.base.vma_node);
1747 rep->crep.buffer_size = srf->res.backup->base.num_pages * PAGE_SIZE;
1748
1749 rep->creq.version = drm_vmw_gb_surface_v1;
1750 rep->creq.svga3d_flags_upper_32_bits =
1751 SVGA3D_FLAGS_UPPER_32(srf->flags);
1752 rep->creq.multisample_pattern = srf->multisample_pattern;
1753 rep->creq.quality_level = srf->quality_level;
1754 rep->creq.must_be_zero = 0;
1755
1756out_bad_resource:
1757 ttm_base_object_unref(&base);
1758
1759 return ret;
1760}
1/**************************************************************************
2 *
3 * Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
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 "device_include/svga3d_surfacedefs.h"
35
36
37/**
38 * struct vmw_user_surface - User-space visible surface resource
39 *
40 * @base: The TTM base object handling user-space visibility.
41 * @srf: The surface metadata.
42 * @size: TTM accounting size for the surface.
43 * @master: master of the creating client. Used for security check.
44 */
45struct vmw_user_surface {
46 struct ttm_prime_object prime;
47 struct vmw_surface srf;
48 uint32_t size;
49 struct drm_master *master;
50 struct ttm_base_object *backup_base;
51};
52
53/**
54 * struct vmw_surface_offset - Backing store mip level offset info
55 *
56 * @face: Surface face.
57 * @mip: Mip level.
58 * @bo_offset: Offset into backing store of this mip level.
59 *
60 */
61struct vmw_surface_offset {
62 uint32_t face;
63 uint32_t mip;
64 uint32_t bo_offset;
65};
66
67static void vmw_user_surface_free(struct vmw_resource *res);
68static struct vmw_resource *
69vmw_user_surface_base_to_res(struct ttm_base_object *base);
70static int vmw_legacy_srf_bind(struct vmw_resource *res,
71 struct ttm_validate_buffer *val_buf);
72static int vmw_legacy_srf_unbind(struct vmw_resource *res,
73 bool readback,
74 struct ttm_validate_buffer *val_buf);
75static int vmw_legacy_srf_create(struct vmw_resource *res);
76static int vmw_legacy_srf_destroy(struct vmw_resource *res);
77static int vmw_gb_surface_create(struct vmw_resource *res);
78static int vmw_gb_surface_bind(struct vmw_resource *res,
79 struct ttm_validate_buffer *val_buf);
80static int vmw_gb_surface_unbind(struct vmw_resource *res,
81 bool readback,
82 struct ttm_validate_buffer *val_buf);
83static int vmw_gb_surface_destroy(struct vmw_resource *res);
84
85
86static const struct vmw_user_resource_conv user_surface_conv = {
87 .object_type = VMW_RES_SURFACE,
88 .base_obj_to_res = vmw_user_surface_base_to_res,
89 .res_free = vmw_user_surface_free
90};
91
92const struct vmw_user_resource_conv *user_surface_converter =
93 &user_surface_conv;
94
95
96static uint64_t vmw_user_surface_size;
97
98static const struct vmw_res_func vmw_legacy_surface_func = {
99 .res_type = vmw_res_surface,
100 .needs_backup = false,
101 .may_evict = true,
102 .type_name = "legacy surfaces",
103 .backup_placement = &vmw_srf_placement,
104 .create = &vmw_legacy_srf_create,
105 .destroy = &vmw_legacy_srf_destroy,
106 .bind = &vmw_legacy_srf_bind,
107 .unbind = &vmw_legacy_srf_unbind
108};
109
110static const struct vmw_res_func vmw_gb_surface_func = {
111 .res_type = vmw_res_surface,
112 .needs_backup = true,
113 .may_evict = true,
114 .type_name = "guest backed surfaces",
115 .backup_placement = &vmw_mob_placement,
116 .create = vmw_gb_surface_create,
117 .destroy = vmw_gb_surface_destroy,
118 .bind = vmw_gb_surface_bind,
119 .unbind = vmw_gb_surface_unbind
120};
121
122/**
123 * struct vmw_surface_dma - SVGA3D DMA command
124 */
125struct vmw_surface_dma {
126 SVGA3dCmdHeader header;
127 SVGA3dCmdSurfaceDMA body;
128 SVGA3dCopyBox cb;
129 SVGA3dCmdSurfaceDMASuffix suffix;
130};
131
132/**
133 * struct vmw_surface_define - SVGA3D Surface Define command
134 */
135struct vmw_surface_define {
136 SVGA3dCmdHeader header;
137 SVGA3dCmdDefineSurface body;
138};
139
140/**
141 * struct vmw_surface_destroy - SVGA3D Surface Destroy command
142 */
143struct vmw_surface_destroy {
144 SVGA3dCmdHeader header;
145 SVGA3dCmdDestroySurface body;
146};
147
148
149/**
150 * vmw_surface_dma_size - Compute fifo size for a dma command.
151 *
152 * @srf: Pointer to a struct vmw_surface
153 *
154 * Computes the required size for a surface dma command for backup or
155 * restoration of the surface represented by @srf.
156 */
157static inline uint32_t vmw_surface_dma_size(const struct vmw_surface *srf)
158{
159 return srf->num_sizes * sizeof(struct vmw_surface_dma);
160}
161
162
163/**
164 * vmw_surface_define_size - Compute fifo size for a surface define command.
165 *
166 * @srf: Pointer to a struct vmw_surface
167 *
168 * Computes the required size for a surface define command for the definition
169 * of the surface represented by @srf.
170 */
171static inline uint32_t vmw_surface_define_size(const struct vmw_surface *srf)
172{
173 return sizeof(struct vmw_surface_define) + srf->num_sizes *
174 sizeof(SVGA3dSize);
175}
176
177
178/**
179 * vmw_surface_destroy_size - Compute fifo size for a surface destroy command.
180 *
181 * Computes the required size for a surface destroy command for the destruction
182 * of a hw surface.
183 */
184static inline uint32_t vmw_surface_destroy_size(void)
185{
186 return sizeof(struct vmw_surface_destroy);
187}
188
189/**
190 * vmw_surface_destroy_encode - Encode a surface_destroy command.
191 *
192 * @id: The surface id
193 * @cmd_space: Pointer to memory area in which the commands should be encoded.
194 */
195static void vmw_surface_destroy_encode(uint32_t id,
196 void *cmd_space)
197{
198 struct vmw_surface_destroy *cmd = (struct vmw_surface_destroy *)
199 cmd_space;
200
201 cmd->header.id = SVGA_3D_CMD_SURFACE_DESTROY;
202 cmd->header.size = sizeof(cmd->body);
203 cmd->body.sid = id;
204}
205
206/**
207 * vmw_surface_define_encode - Encode a surface_define command.
208 *
209 * @srf: Pointer to a struct vmw_surface object.
210 * @cmd_space: Pointer to memory area in which the commands should be encoded.
211 */
212static void vmw_surface_define_encode(const struct vmw_surface *srf,
213 void *cmd_space)
214{
215 struct vmw_surface_define *cmd = (struct vmw_surface_define *)
216 cmd_space;
217 struct drm_vmw_size *src_size;
218 SVGA3dSize *cmd_size;
219 uint32_t cmd_len;
220 int i;
221
222 cmd_len = sizeof(cmd->body) + srf->num_sizes * sizeof(SVGA3dSize);
223
224 cmd->header.id = SVGA_3D_CMD_SURFACE_DEFINE;
225 cmd->header.size = cmd_len;
226 cmd->body.sid = srf->res.id;
227 cmd->body.surfaceFlags = srf->flags;
228 cmd->body.format = srf->format;
229 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i)
230 cmd->body.face[i].numMipLevels = srf->mip_levels[i];
231
232 cmd += 1;
233 cmd_size = (SVGA3dSize *) cmd;
234 src_size = srf->sizes;
235
236 for (i = 0; i < srf->num_sizes; ++i, cmd_size++, src_size++) {
237 cmd_size->width = src_size->width;
238 cmd_size->height = src_size->height;
239 cmd_size->depth = src_size->depth;
240 }
241}
242
243/**
244 * vmw_surface_dma_encode - Encode a surface_dma 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 * @ptr: Pointer to an SVGAGuestPtr indicating where the surface contents
249 * should be placed or read from.
250 * @to_surface: Boolean whether to DMA to the surface or from the surface.
251 */
252static void vmw_surface_dma_encode(struct vmw_surface *srf,
253 void *cmd_space,
254 const SVGAGuestPtr *ptr,
255 bool to_surface)
256{
257 uint32_t i;
258 struct vmw_surface_dma *cmd = (struct vmw_surface_dma *)cmd_space;
259 const struct svga3d_surface_desc *desc =
260 svga3dsurface_get_desc(srf->format);
261
262 for (i = 0; i < srf->num_sizes; ++i) {
263 SVGA3dCmdHeader *header = &cmd->header;
264 SVGA3dCmdSurfaceDMA *body = &cmd->body;
265 SVGA3dCopyBox *cb = &cmd->cb;
266 SVGA3dCmdSurfaceDMASuffix *suffix = &cmd->suffix;
267 const struct vmw_surface_offset *cur_offset = &srf->offsets[i];
268 const struct drm_vmw_size *cur_size = &srf->sizes[i];
269
270 header->id = SVGA_3D_CMD_SURFACE_DMA;
271 header->size = sizeof(*body) + sizeof(*cb) + sizeof(*suffix);
272
273 body->guest.ptr = *ptr;
274 body->guest.ptr.offset += cur_offset->bo_offset;
275 body->guest.pitch = svga3dsurface_calculate_pitch(desc,
276 cur_size);
277 body->host.sid = srf->res.id;
278 body->host.face = cur_offset->face;
279 body->host.mipmap = cur_offset->mip;
280 body->transfer = ((to_surface) ? SVGA3D_WRITE_HOST_VRAM :
281 SVGA3D_READ_HOST_VRAM);
282 cb->x = 0;
283 cb->y = 0;
284 cb->z = 0;
285 cb->srcx = 0;
286 cb->srcy = 0;
287 cb->srcz = 0;
288 cb->w = cur_size->width;
289 cb->h = cur_size->height;
290 cb->d = cur_size->depth;
291
292 suffix->suffixSize = sizeof(*suffix);
293 suffix->maximumOffset =
294 svga3dsurface_get_image_buffer_size(desc, cur_size,
295 body->guest.pitch);
296 suffix->flags.discard = 0;
297 suffix->flags.unsynchronized = 0;
298 suffix->flags.reserved = 0;
299 ++cmd;
300 }
301};
302
303
304/**
305 * vmw_hw_surface_destroy - destroy a Device surface
306 *
307 * @res: Pointer to a struct vmw_resource embedded in a struct
308 * vmw_surface.
309 *
310 * Destroys a the device surface associated with a struct vmw_surface if
311 * any, and adjusts accounting and resource count accordingly.
312 */
313static void vmw_hw_surface_destroy(struct vmw_resource *res)
314{
315
316 struct vmw_private *dev_priv = res->dev_priv;
317 struct vmw_surface *srf;
318 void *cmd;
319
320 if (res->func->destroy == vmw_gb_surface_destroy) {
321 (void) vmw_gb_surface_destroy(res);
322 return;
323 }
324
325 if (res->id != -1) {
326
327 cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size());
328 if (unlikely(!cmd)) {
329 DRM_ERROR("Failed reserving FIFO space for surface "
330 "destruction.\n");
331 return;
332 }
333
334 vmw_surface_destroy_encode(res->id, cmd);
335 vmw_fifo_commit(dev_priv, vmw_surface_destroy_size());
336
337 /*
338 * used_memory_size_atomic, or separate lock
339 * to avoid taking dev_priv::cmdbuf_mutex in
340 * the destroy path.
341 */
342
343 mutex_lock(&dev_priv->cmdbuf_mutex);
344 srf = vmw_res_to_srf(res);
345 dev_priv->used_memory_size -= res->backup_size;
346 mutex_unlock(&dev_priv->cmdbuf_mutex);
347 }
348}
349
350/**
351 * vmw_legacy_srf_create - Create a device surface as part of the
352 * resource validation process.
353 *
354 * @res: Pointer to a struct vmw_surface.
355 *
356 * If the surface doesn't have a hw id.
357 *
358 * Returns -EBUSY if there wasn't sufficient device resources to
359 * complete the validation. Retry after freeing up resources.
360 *
361 * May return other errors if the kernel is out of guest resources.
362 */
363static int vmw_legacy_srf_create(struct vmw_resource *res)
364{
365 struct vmw_private *dev_priv = res->dev_priv;
366 struct vmw_surface *srf;
367 uint32_t submit_size;
368 uint8_t *cmd;
369 int ret;
370
371 if (likely(res->id != -1))
372 return 0;
373
374 srf = vmw_res_to_srf(res);
375 if (unlikely(dev_priv->used_memory_size + res->backup_size >=
376 dev_priv->memory_size))
377 return -EBUSY;
378
379 /*
380 * Alloc id for the resource.
381 */
382
383 ret = vmw_resource_alloc_id(res);
384 if (unlikely(ret != 0)) {
385 DRM_ERROR("Failed to allocate a surface id.\n");
386 goto out_no_id;
387 }
388
389 if (unlikely(res->id >= SVGA3D_MAX_SURFACE_IDS)) {
390 ret = -EBUSY;
391 goto out_no_fifo;
392 }
393
394 /*
395 * Encode surface define- commands.
396 */
397
398 submit_size = vmw_surface_define_size(srf);
399 cmd = vmw_fifo_reserve(dev_priv, submit_size);
400 if (unlikely(!cmd)) {
401 DRM_ERROR("Failed reserving FIFO space for surface "
402 "creation.\n");
403 ret = -ENOMEM;
404 goto out_no_fifo;
405 }
406
407 vmw_surface_define_encode(srf, cmd);
408 vmw_fifo_commit(dev_priv, submit_size);
409 vmw_fifo_resource_inc(dev_priv);
410
411 /*
412 * Surface memory usage accounting.
413 */
414
415 dev_priv->used_memory_size += res->backup_size;
416 return 0;
417
418out_no_fifo:
419 vmw_resource_release_id(res);
420out_no_id:
421 return ret;
422}
423
424/**
425 * vmw_legacy_srf_dma - Copy backup data to or from a legacy surface.
426 *
427 * @res: Pointer to a struct vmw_res embedded in a struct
428 * vmw_surface.
429 * @val_buf: Pointer to a struct ttm_validate_buffer containing
430 * information about the backup buffer.
431 * @bind: Boolean wether to DMA to the surface.
432 *
433 * Transfer backup data to or from a legacy surface as part of the
434 * validation process.
435 * May return other errors if the kernel is out of guest resources.
436 * The backup buffer will be fenced or idle upon successful completion,
437 * and if the surface needs persistent backup storage, the backup buffer
438 * will also be returned reserved iff @bind is true.
439 */
440static int vmw_legacy_srf_dma(struct vmw_resource *res,
441 struct ttm_validate_buffer *val_buf,
442 bool bind)
443{
444 SVGAGuestPtr ptr;
445 struct vmw_fence_obj *fence;
446 uint32_t submit_size;
447 struct vmw_surface *srf = vmw_res_to_srf(res);
448 uint8_t *cmd;
449 struct vmw_private *dev_priv = res->dev_priv;
450
451 BUG_ON(!val_buf->bo);
452 submit_size = vmw_surface_dma_size(srf);
453 cmd = vmw_fifo_reserve(dev_priv, submit_size);
454 if (unlikely(!cmd)) {
455 DRM_ERROR("Failed reserving FIFO space for surface "
456 "DMA.\n");
457 return -ENOMEM;
458 }
459 vmw_bo_get_guest_ptr(val_buf->bo, &ptr);
460 vmw_surface_dma_encode(srf, cmd, &ptr, bind);
461
462 vmw_fifo_commit(dev_priv, submit_size);
463
464 /*
465 * Create a fence object and fence the backup buffer.
466 */
467
468 (void) vmw_execbuf_fence_commands(NULL, dev_priv,
469 &fence, NULL);
470
471 vmw_fence_single_bo(val_buf->bo, fence);
472
473 if (likely(fence != NULL))
474 vmw_fence_obj_unreference(&fence);
475
476 return 0;
477}
478
479/**
480 * vmw_legacy_srf_bind - Perform a legacy surface bind as part of the
481 * surface validation process.
482 *
483 * @res: Pointer to a struct vmw_res embedded in a struct
484 * vmw_surface.
485 * @val_buf: Pointer to a struct ttm_validate_buffer containing
486 * information about the backup buffer.
487 *
488 * This function will copy backup data to the surface if the
489 * backup buffer is dirty.
490 */
491static int vmw_legacy_srf_bind(struct vmw_resource *res,
492 struct ttm_validate_buffer *val_buf)
493{
494 if (!res->backup_dirty)
495 return 0;
496
497 return vmw_legacy_srf_dma(res, val_buf, true);
498}
499
500
501/**
502 * vmw_legacy_srf_unbind - Perform a legacy surface unbind as part of the
503 * surface eviction process.
504 *
505 * @res: Pointer to a struct vmw_res embedded in a struct
506 * vmw_surface.
507 * @val_buf: Pointer to a struct ttm_validate_buffer containing
508 * information about the backup buffer.
509 *
510 * This function will copy backup data from the surface.
511 */
512static int vmw_legacy_srf_unbind(struct vmw_resource *res,
513 bool readback,
514 struct ttm_validate_buffer *val_buf)
515{
516 if (unlikely(readback))
517 return vmw_legacy_srf_dma(res, val_buf, false);
518 return 0;
519}
520
521/**
522 * vmw_legacy_srf_destroy - Destroy a device surface as part of a
523 * resource eviction process.
524 *
525 * @res: Pointer to a struct vmw_res embedded in a struct
526 * vmw_surface.
527 */
528static int vmw_legacy_srf_destroy(struct vmw_resource *res)
529{
530 struct vmw_private *dev_priv = res->dev_priv;
531 uint32_t submit_size;
532 uint8_t *cmd;
533
534 BUG_ON(res->id == -1);
535
536 /*
537 * Encode the dma- and surface destroy commands.
538 */
539
540 submit_size = vmw_surface_destroy_size();
541 cmd = vmw_fifo_reserve(dev_priv, submit_size);
542 if (unlikely(!cmd)) {
543 DRM_ERROR("Failed reserving FIFO space for surface "
544 "eviction.\n");
545 return -ENOMEM;
546 }
547
548 vmw_surface_destroy_encode(res->id, cmd);
549 vmw_fifo_commit(dev_priv, submit_size);
550
551 /*
552 * Surface memory usage accounting.
553 */
554
555 dev_priv->used_memory_size -= res->backup_size;
556
557 /*
558 * Release the surface ID.
559 */
560
561 vmw_resource_release_id(res);
562 vmw_fifo_resource_dec(dev_priv);
563
564 return 0;
565}
566
567
568/**
569 * vmw_surface_init - initialize a struct vmw_surface
570 *
571 * @dev_priv: Pointer to a device private struct.
572 * @srf: Pointer to the struct vmw_surface to initialize.
573 * @res_free: Pointer to a resource destructor used to free
574 * the object.
575 */
576static int vmw_surface_init(struct vmw_private *dev_priv,
577 struct vmw_surface *srf,
578 void (*res_free) (struct vmw_resource *res))
579{
580 int ret;
581 struct vmw_resource *res = &srf->res;
582
583 BUG_ON(!res_free);
584 ret = vmw_resource_init(dev_priv, res, true, res_free,
585 (dev_priv->has_mob) ? &vmw_gb_surface_func :
586 &vmw_legacy_surface_func);
587
588 if (unlikely(ret != 0)) {
589 res_free(res);
590 return ret;
591 }
592
593 /*
594 * The surface won't be visible to hardware until a
595 * surface validate.
596 */
597
598 INIT_LIST_HEAD(&srf->view_list);
599 vmw_resource_activate(res, vmw_hw_surface_destroy);
600 return ret;
601}
602
603/**
604 * vmw_user_surface_base_to_res - TTM base object to resource converter for
605 * user visible surfaces
606 *
607 * @base: Pointer to a TTM base object
608 *
609 * Returns the struct vmw_resource embedded in a struct vmw_surface
610 * for the user-visible object identified by the TTM base object @base.
611 */
612static struct vmw_resource *
613vmw_user_surface_base_to_res(struct ttm_base_object *base)
614{
615 return &(container_of(base, struct vmw_user_surface,
616 prime.base)->srf.res);
617}
618
619/**
620 * vmw_user_surface_free - User visible surface resource destructor
621 *
622 * @res: A struct vmw_resource embedded in a struct vmw_surface.
623 */
624static void vmw_user_surface_free(struct vmw_resource *res)
625{
626 struct vmw_surface *srf = vmw_res_to_srf(res);
627 struct vmw_user_surface *user_srf =
628 container_of(srf, struct vmw_user_surface, srf);
629 struct vmw_private *dev_priv = srf->res.dev_priv;
630 uint32_t size = user_srf->size;
631
632 if (user_srf->master)
633 drm_master_put(&user_srf->master);
634 kfree(srf->offsets);
635 kfree(srf->sizes);
636 kfree(srf->snooper.image);
637 ttm_prime_object_kfree(user_srf, prime);
638 ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
639}
640
641/**
642 * vmw_user_surface_free - User visible surface TTM base object destructor
643 *
644 * @p_base: Pointer to a pointer to a TTM base object
645 * embedded in a struct vmw_user_surface.
646 *
647 * Drops the base object's reference on its resource, and the
648 * pointer pointed to by *p_base is set to NULL.
649 */
650static void vmw_user_surface_base_release(struct ttm_base_object **p_base)
651{
652 struct ttm_base_object *base = *p_base;
653 struct vmw_user_surface *user_srf =
654 container_of(base, struct vmw_user_surface, prime.base);
655 struct vmw_resource *res = &user_srf->srf.res;
656
657 *p_base = NULL;
658 if (user_srf->backup_base)
659 ttm_base_object_unref(&user_srf->backup_base);
660 vmw_resource_unreference(&res);
661}
662
663/**
664 * vmw_user_surface_destroy_ioctl - Ioctl function implementing
665 * the user surface destroy functionality.
666 *
667 * @dev: Pointer to a struct drm_device.
668 * @data: Pointer to data copied from / to user-space.
669 * @file_priv: Pointer to a drm file private structure.
670 */
671int vmw_surface_destroy_ioctl(struct drm_device *dev, void *data,
672 struct drm_file *file_priv)
673{
674 struct drm_vmw_surface_arg *arg = (struct drm_vmw_surface_arg *)data;
675 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
676
677 return ttm_ref_object_base_unref(tfile, arg->sid, TTM_REF_USAGE);
678}
679
680/**
681 * vmw_user_surface_define_ioctl - Ioctl function implementing
682 * the user surface define functionality.
683 *
684 * @dev: Pointer to a struct drm_device.
685 * @data: Pointer to data copied from / to user-space.
686 * @file_priv: Pointer to a drm file private structure.
687 */
688int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
689 struct drm_file *file_priv)
690{
691 struct vmw_private *dev_priv = vmw_priv(dev);
692 struct vmw_user_surface *user_srf;
693 struct vmw_surface *srf;
694 struct vmw_resource *res;
695 struct vmw_resource *tmp;
696 union drm_vmw_surface_create_arg *arg =
697 (union drm_vmw_surface_create_arg *)data;
698 struct drm_vmw_surface_create_req *req = &arg->req;
699 struct drm_vmw_surface_arg *rep = &arg->rep;
700 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
701 struct ttm_operation_ctx ctx = {
702 .interruptible = true,
703 .no_wait_gpu = false
704 };
705 int ret;
706 int i, j;
707 uint32_t cur_bo_offset;
708 struct drm_vmw_size *cur_size;
709 struct vmw_surface_offset *cur_offset;
710 uint32_t num_sizes;
711 uint32_t size;
712 const struct svga3d_surface_desc *desc;
713
714 if (unlikely(vmw_user_surface_size == 0))
715 vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
716 128;
717
718 num_sizes = 0;
719 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
720 if (req->mip_levels[i] > DRM_VMW_MAX_MIP_LEVELS)
721 return -EINVAL;
722 num_sizes += req->mip_levels[i];
723 }
724
725 if (num_sizes > DRM_VMW_MAX_SURFACE_FACES * DRM_VMW_MAX_MIP_LEVELS ||
726 num_sizes == 0)
727 return -EINVAL;
728
729 size = vmw_user_surface_size + 128 +
730 ttm_round_pot(num_sizes * sizeof(struct drm_vmw_size)) +
731 ttm_round_pot(num_sizes * sizeof(struct vmw_surface_offset));
732
733
734 desc = svga3dsurface_get_desc(req->format);
735 if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
736 DRM_ERROR("Invalid surface format for surface creation.\n");
737 DRM_ERROR("Format requested is: %d\n", req->format);
738 return -EINVAL;
739 }
740
741 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
742 if (unlikely(ret != 0))
743 return ret;
744
745 ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
746 size, &ctx);
747 if (unlikely(ret != 0)) {
748 if (ret != -ERESTARTSYS)
749 DRM_ERROR("Out of graphics memory for surface"
750 " creation.\n");
751 goto out_unlock;
752 }
753
754 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
755 if (unlikely(!user_srf)) {
756 ret = -ENOMEM;
757 goto out_no_user_srf;
758 }
759
760 srf = &user_srf->srf;
761 res = &srf->res;
762
763 srf->flags = req->flags;
764 srf->format = req->format;
765 srf->scanout = req->scanout;
766
767 memcpy(srf->mip_levels, req->mip_levels, sizeof(srf->mip_levels));
768 srf->num_sizes = num_sizes;
769 user_srf->size = size;
770 srf->sizes = memdup_user((struct drm_vmw_size __user *)(unsigned long)
771 req->size_addr,
772 sizeof(*srf->sizes) * srf->num_sizes);
773 if (IS_ERR(srf->sizes)) {
774 ret = PTR_ERR(srf->sizes);
775 goto out_no_sizes;
776 }
777 srf->offsets = kmalloc_array(srf->num_sizes,
778 sizeof(*srf->offsets),
779 GFP_KERNEL);
780 if (unlikely(!srf->offsets)) {
781 ret = -ENOMEM;
782 goto out_no_offsets;
783 }
784
785 srf->base_size = *srf->sizes;
786 srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
787 srf->multisample_count = 0;
788
789 cur_bo_offset = 0;
790 cur_offset = srf->offsets;
791 cur_size = srf->sizes;
792
793 for (i = 0; i < DRM_VMW_MAX_SURFACE_FACES; ++i) {
794 for (j = 0; j < srf->mip_levels[i]; ++j) {
795 uint32_t stride = svga3dsurface_calculate_pitch
796 (desc, cur_size);
797
798 cur_offset->face = i;
799 cur_offset->mip = j;
800 cur_offset->bo_offset = cur_bo_offset;
801 cur_bo_offset += svga3dsurface_get_image_buffer_size
802 (desc, cur_size, stride);
803 ++cur_offset;
804 ++cur_size;
805 }
806 }
807 res->backup_size = cur_bo_offset;
808 if (srf->scanout &&
809 srf->num_sizes == 1 &&
810 srf->sizes[0].width == 64 &&
811 srf->sizes[0].height == 64 &&
812 srf->format == SVGA3D_A8R8G8B8) {
813
814 srf->snooper.image = kzalloc(64 * 64 * 4, GFP_KERNEL);
815 if (!srf->snooper.image) {
816 DRM_ERROR("Failed to allocate cursor_image\n");
817 ret = -ENOMEM;
818 goto out_no_copy;
819 }
820 } else {
821 srf->snooper.image = NULL;
822 }
823
824 user_srf->prime.base.shareable = false;
825 user_srf->prime.base.tfile = NULL;
826 if (drm_is_primary_client(file_priv))
827 user_srf->master = drm_master_get(file_priv->master);
828
829 /**
830 * From this point, the generic resource management functions
831 * destroy the object on failure.
832 */
833
834 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
835 if (unlikely(ret != 0))
836 goto out_unlock;
837
838 /*
839 * A gb-aware client referencing a shared surface will
840 * expect a backup buffer to be present.
841 */
842 if (dev_priv->has_mob && req->shareable) {
843 uint32_t backup_handle;
844
845 ret = vmw_user_dmabuf_alloc(dev_priv, tfile,
846 res->backup_size,
847 true,
848 &backup_handle,
849 &res->backup,
850 &user_srf->backup_base);
851 if (unlikely(ret != 0)) {
852 vmw_resource_unreference(&res);
853 goto out_unlock;
854 }
855 }
856
857 tmp = vmw_resource_reference(&srf->res);
858 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
859 req->shareable, VMW_RES_SURFACE,
860 &vmw_user_surface_base_release, NULL);
861
862 if (unlikely(ret != 0)) {
863 vmw_resource_unreference(&tmp);
864 vmw_resource_unreference(&res);
865 goto out_unlock;
866 }
867
868 rep->sid = user_srf->prime.base.hash.key;
869 vmw_resource_unreference(&res);
870
871 ttm_read_unlock(&dev_priv->reservation_sem);
872 return 0;
873out_no_copy:
874 kfree(srf->offsets);
875out_no_offsets:
876 kfree(srf->sizes);
877out_no_sizes:
878 ttm_prime_object_kfree(user_srf, prime);
879out_no_user_srf:
880 ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
881out_unlock:
882 ttm_read_unlock(&dev_priv->reservation_sem);
883 return ret;
884}
885
886
887static int
888vmw_surface_handle_reference(struct vmw_private *dev_priv,
889 struct drm_file *file_priv,
890 uint32_t u_handle,
891 enum drm_vmw_handle_type handle_type,
892 struct ttm_base_object **base_p)
893{
894 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
895 struct vmw_user_surface *user_srf;
896 uint32_t handle;
897 struct ttm_base_object *base;
898 int ret;
899 bool require_exist = false;
900
901 if (handle_type == DRM_VMW_HANDLE_PRIME) {
902 ret = ttm_prime_fd_to_handle(tfile, u_handle, &handle);
903 if (unlikely(ret != 0))
904 return ret;
905 } else {
906 if (unlikely(drm_is_render_client(file_priv)))
907 require_exist = true;
908
909 if (READ_ONCE(vmw_fpriv(file_priv)->locked_master)) {
910 DRM_ERROR("Locked master refused legacy "
911 "surface reference.\n");
912 return -EACCES;
913 }
914
915 handle = u_handle;
916 }
917
918 ret = -EINVAL;
919 base = ttm_base_object_lookup_for_ref(dev_priv->tdev, handle);
920 if (unlikely(!base)) {
921 DRM_ERROR("Could not find surface to reference.\n");
922 goto out_no_lookup;
923 }
924
925 if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE)) {
926 DRM_ERROR("Referenced object is not a surface.\n");
927 goto out_bad_resource;
928 }
929
930 if (handle_type != DRM_VMW_HANDLE_PRIME) {
931 user_srf = container_of(base, struct vmw_user_surface,
932 prime.base);
933
934 /*
935 * Make sure the surface creator has the same
936 * authenticating master, or is already registered with us.
937 */
938 if (drm_is_primary_client(file_priv) &&
939 user_srf->master != file_priv->master)
940 require_exist = true;
941
942 ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL,
943 require_exist);
944 if (unlikely(ret != 0)) {
945 DRM_ERROR("Could not add a reference to a surface.\n");
946 goto out_bad_resource;
947 }
948 }
949
950 *base_p = base;
951 return 0;
952
953out_bad_resource:
954 ttm_base_object_unref(&base);
955out_no_lookup:
956 if (handle_type == DRM_VMW_HANDLE_PRIME)
957 (void) ttm_ref_object_base_unref(tfile, handle, TTM_REF_USAGE);
958
959 return ret;
960}
961
962/**
963 * vmw_user_surface_define_ioctl - Ioctl function implementing
964 * the user surface reference functionality.
965 *
966 * @dev: Pointer to a struct drm_device.
967 * @data: Pointer to data copied from / to user-space.
968 * @file_priv: Pointer to a drm file private structure.
969 */
970int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
971 struct drm_file *file_priv)
972{
973 struct vmw_private *dev_priv = vmw_priv(dev);
974 union drm_vmw_surface_reference_arg *arg =
975 (union drm_vmw_surface_reference_arg *)data;
976 struct drm_vmw_surface_arg *req = &arg->req;
977 struct drm_vmw_surface_create_req *rep = &arg->rep;
978 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
979 struct vmw_surface *srf;
980 struct vmw_user_surface *user_srf;
981 struct drm_vmw_size __user *user_sizes;
982 struct ttm_base_object *base;
983 int ret;
984
985 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
986 req->handle_type, &base);
987 if (unlikely(ret != 0))
988 return ret;
989
990 user_srf = container_of(base, struct vmw_user_surface, prime.base);
991 srf = &user_srf->srf;
992
993 rep->flags = srf->flags;
994 rep->format = srf->format;
995 memcpy(rep->mip_levels, srf->mip_levels, sizeof(srf->mip_levels));
996 user_sizes = (struct drm_vmw_size __user *)(unsigned long)
997 rep->size_addr;
998
999 if (user_sizes)
1000 ret = copy_to_user(user_sizes, &srf->base_size,
1001 sizeof(srf->base_size));
1002 if (unlikely(ret != 0)) {
1003 DRM_ERROR("copy_to_user failed %p %u\n",
1004 user_sizes, srf->num_sizes);
1005 ttm_ref_object_base_unref(tfile, base->hash.key, TTM_REF_USAGE);
1006 ret = -EFAULT;
1007 }
1008
1009 ttm_base_object_unref(&base);
1010
1011 return ret;
1012}
1013
1014/**
1015 * vmw_surface_define_encode - Encode a surface_define command.
1016 *
1017 * @srf: Pointer to a struct vmw_surface object.
1018 * @cmd_space: Pointer to memory area in which the commands should be encoded.
1019 */
1020static int vmw_gb_surface_create(struct vmw_resource *res)
1021{
1022 struct vmw_private *dev_priv = res->dev_priv;
1023 struct vmw_surface *srf = vmw_res_to_srf(res);
1024 uint32_t cmd_len, cmd_id, submit_len;
1025 int ret;
1026 struct {
1027 SVGA3dCmdHeader header;
1028 SVGA3dCmdDefineGBSurface body;
1029 } *cmd;
1030 struct {
1031 SVGA3dCmdHeader header;
1032 SVGA3dCmdDefineGBSurface_v2 body;
1033 } *cmd2;
1034
1035 if (likely(res->id != -1))
1036 return 0;
1037
1038 vmw_fifo_resource_inc(dev_priv);
1039 ret = vmw_resource_alloc_id(res);
1040 if (unlikely(ret != 0)) {
1041 DRM_ERROR("Failed to allocate a surface id.\n");
1042 goto out_no_id;
1043 }
1044
1045 if (unlikely(res->id >= VMWGFX_NUM_GB_SURFACE)) {
1046 ret = -EBUSY;
1047 goto out_no_fifo;
1048 }
1049
1050 if (srf->array_size > 0) {
1051 /* has_dx checked on creation time. */
1052 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE_V2;
1053 cmd_len = sizeof(cmd2->body);
1054 submit_len = sizeof(*cmd2);
1055 } else {
1056 cmd_id = SVGA_3D_CMD_DEFINE_GB_SURFACE;
1057 cmd_len = sizeof(cmd->body);
1058 submit_len = sizeof(*cmd);
1059 }
1060
1061 cmd = vmw_fifo_reserve(dev_priv, submit_len);
1062 cmd2 = (typeof(cmd2))cmd;
1063 if (unlikely(!cmd)) {
1064 DRM_ERROR("Failed reserving FIFO space for surface "
1065 "creation.\n");
1066 ret = -ENOMEM;
1067 goto out_no_fifo;
1068 }
1069
1070 if (srf->array_size > 0) {
1071 cmd2->header.id = cmd_id;
1072 cmd2->header.size = cmd_len;
1073 cmd2->body.sid = srf->res.id;
1074 cmd2->body.surfaceFlags = srf->flags;
1075 cmd2->body.format = cpu_to_le32(srf->format);
1076 cmd2->body.numMipLevels = srf->mip_levels[0];
1077 cmd2->body.multisampleCount = srf->multisample_count;
1078 cmd2->body.autogenFilter = srf->autogen_filter;
1079 cmd2->body.size.width = srf->base_size.width;
1080 cmd2->body.size.height = srf->base_size.height;
1081 cmd2->body.size.depth = srf->base_size.depth;
1082 cmd2->body.arraySize = srf->array_size;
1083 } else {
1084 cmd->header.id = cmd_id;
1085 cmd->header.size = cmd_len;
1086 cmd->body.sid = srf->res.id;
1087 cmd->body.surfaceFlags = srf->flags;
1088 cmd->body.format = cpu_to_le32(srf->format);
1089 cmd->body.numMipLevels = srf->mip_levels[0];
1090 cmd->body.multisampleCount = srf->multisample_count;
1091 cmd->body.autogenFilter = srf->autogen_filter;
1092 cmd->body.size.width = srf->base_size.width;
1093 cmd->body.size.height = srf->base_size.height;
1094 cmd->body.size.depth = srf->base_size.depth;
1095 }
1096
1097 vmw_fifo_commit(dev_priv, submit_len);
1098
1099 return 0;
1100
1101out_no_fifo:
1102 vmw_resource_release_id(res);
1103out_no_id:
1104 vmw_fifo_resource_dec(dev_priv);
1105 return ret;
1106}
1107
1108
1109static int vmw_gb_surface_bind(struct vmw_resource *res,
1110 struct ttm_validate_buffer *val_buf)
1111{
1112 struct vmw_private *dev_priv = res->dev_priv;
1113 struct {
1114 SVGA3dCmdHeader header;
1115 SVGA3dCmdBindGBSurface body;
1116 } *cmd1;
1117 struct {
1118 SVGA3dCmdHeader header;
1119 SVGA3dCmdUpdateGBSurface body;
1120 } *cmd2;
1121 uint32_t submit_size;
1122 struct ttm_buffer_object *bo = val_buf->bo;
1123
1124 BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
1125
1126 submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0);
1127
1128 cmd1 = vmw_fifo_reserve(dev_priv, submit_size);
1129 if (unlikely(!cmd1)) {
1130 DRM_ERROR("Failed reserving FIFO space for surface "
1131 "binding.\n");
1132 return -ENOMEM;
1133 }
1134
1135 cmd1->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
1136 cmd1->header.size = sizeof(cmd1->body);
1137 cmd1->body.sid = res->id;
1138 cmd1->body.mobid = bo->mem.start;
1139 if (res->backup_dirty) {
1140 cmd2 = (void *) &cmd1[1];
1141 cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE;
1142 cmd2->header.size = sizeof(cmd2->body);
1143 cmd2->body.sid = res->id;
1144 res->backup_dirty = false;
1145 }
1146 vmw_fifo_commit(dev_priv, submit_size);
1147
1148 return 0;
1149}
1150
1151static int vmw_gb_surface_unbind(struct vmw_resource *res,
1152 bool readback,
1153 struct ttm_validate_buffer *val_buf)
1154{
1155 struct vmw_private *dev_priv = res->dev_priv;
1156 struct ttm_buffer_object *bo = val_buf->bo;
1157 struct vmw_fence_obj *fence;
1158
1159 struct {
1160 SVGA3dCmdHeader header;
1161 SVGA3dCmdReadbackGBSurface body;
1162 } *cmd1;
1163 struct {
1164 SVGA3dCmdHeader header;
1165 SVGA3dCmdInvalidateGBSurface body;
1166 } *cmd2;
1167 struct {
1168 SVGA3dCmdHeader header;
1169 SVGA3dCmdBindGBSurface body;
1170 } *cmd3;
1171 uint32_t submit_size;
1172 uint8_t *cmd;
1173
1174
1175 BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
1176
1177 submit_size = sizeof(*cmd3) + (readback ? sizeof(*cmd1) : sizeof(*cmd2));
1178 cmd = vmw_fifo_reserve(dev_priv, submit_size);
1179 if (unlikely(!cmd)) {
1180 DRM_ERROR("Failed reserving FIFO space for surface "
1181 "unbinding.\n");
1182 return -ENOMEM;
1183 }
1184
1185 if (readback) {
1186 cmd1 = (void *) cmd;
1187 cmd1->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE;
1188 cmd1->header.size = sizeof(cmd1->body);
1189 cmd1->body.sid = res->id;
1190 cmd3 = (void *) &cmd1[1];
1191 } else {
1192 cmd2 = (void *) cmd;
1193 cmd2->header.id = SVGA_3D_CMD_INVALIDATE_GB_SURFACE;
1194 cmd2->header.size = sizeof(cmd2->body);
1195 cmd2->body.sid = res->id;
1196 cmd3 = (void *) &cmd2[1];
1197 }
1198
1199 cmd3->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
1200 cmd3->header.size = sizeof(cmd3->body);
1201 cmd3->body.sid = res->id;
1202 cmd3->body.mobid = SVGA3D_INVALID_ID;
1203
1204 vmw_fifo_commit(dev_priv, submit_size);
1205
1206 /*
1207 * Create a fence object and fence the backup buffer.
1208 */
1209
1210 (void) vmw_execbuf_fence_commands(NULL, dev_priv,
1211 &fence, NULL);
1212
1213 vmw_fence_single_bo(val_buf->bo, fence);
1214
1215 if (likely(fence != NULL))
1216 vmw_fence_obj_unreference(&fence);
1217
1218 return 0;
1219}
1220
1221static int vmw_gb_surface_destroy(struct vmw_resource *res)
1222{
1223 struct vmw_private *dev_priv = res->dev_priv;
1224 struct vmw_surface *srf = vmw_res_to_srf(res);
1225 struct {
1226 SVGA3dCmdHeader header;
1227 SVGA3dCmdDestroyGBSurface body;
1228 } *cmd;
1229
1230 if (likely(res->id == -1))
1231 return 0;
1232
1233 mutex_lock(&dev_priv->binding_mutex);
1234 vmw_view_surface_list_destroy(dev_priv, &srf->view_list);
1235 vmw_binding_res_list_scrub(&res->binding_head);
1236
1237 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
1238 if (unlikely(!cmd)) {
1239 DRM_ERROR("Failed reserving FIFO space for surface "
1240 "destruction.\n");
1241 mutex_unlock(&dev_priv->binding_mutex);
1242 return -ENOMEM;
1243 }
1244
1245 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SURFACE;
1246 cmd->header.size = sizeof(cmd->body);
1247 cmd->body.sid = res->id;
1248 vmw_fifo_commit(dev_priv, sizeof(*cmd));
1249 mutex_unlock(&dev_priv->binding_mutex);
1250 vmw_resource_release_id(res);
1251 vmw_fifo_resource_dec(dev_priv);
1252
1253 return 0;
1254}
1255
1256
1257/**
1258 * vmw_gb_surface_define_ioctl - Ioctl function implementing
1259 * the user surface define functionality.
1260 *
1261 * @dev: Pointer to a struct drm_device.
1262 * @data: Pointer to data copied from / to user-space.
1263 * @file_priv: Pointer to a drm file private structure.
1264 */
1265int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
1266 struct drm_file *file_priv)
1267{
1268 struct vmw_private *dev_priv = vmw_priv(dev);
1269 struct vmw_user_surface *user_srf;
1270 struct vmw_surface *srf;
1271 struct vmw_resource *res;
1272 struct vmw_resource *tmp;
1273 union drm_vmw_gb_surface_create_arg *arg =
1274 (union drm_vmw_gb_surface_create_arg *)data;
1275 struct drm_vmw_gb_surface_create_req *req = &arg->req;
1276 struct drm_vmw_gb_surface_create_rep *rep = &arg->rep;
1277 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1278 int ret;
1279 uint32_t size;
1280 uint32_t backup_handle = 0;
1281
1282 if (req->multisample_count != 0)
1283 return -EINVAL;
1284
1285 if (req->mip_levels > DRM_VMW_MAX_MIP_LEVELS)
1286 return -EINVAL;
1287
1288 if (unlikely(vmw_user_surface_size == 0))
1289 vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
1290 128;
1291
1292 size = vmw_user_surface_size + 128;
1293
1294 /* Define a surface based on the parameters. */
1295 ret = vmw_surface_gb_priv_define(dev,
1296 size,
1297 req->svga3d_flags,
1298 req->format,
1299 req->drm_surface_flags & drm_vmw_surface_flag_scanout,
1300 req->mip_levels,
1301 req->multisample_count,
1302 req->array_size,
1303 req->base_size,
1304 &srf);
1305 if (unlikely(ret != 0))
1306 return ret;
1307
1308 user_srf = container_of(srf, struct vmw_user_surface, srf);
1309 if (drm_is_primary_client(file_priv))
1310 user_srf->master = drm_master_get(file_priv->master);
1311
1312 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1313 if (unlikely(ret != 0))
1314 return ret;
1315
1316 res = &user_srf->srf.res;
1317
1318
1319 if (req->buffer_handle != SVGA3D_INVALID_ID) {
1320 ret = vmw_user_dmabuf_lookup(tfile, req->buffer_handle,
1321 &res->backup,
1322 &user_srf->backup_base);
1323 if (ret == 0) {
1324 if (res->backup->base.num_pages * PAGE_SIZE <
1325 res->backup_size) {
1326 DRM_ERROR("Surface backup buffer is too small.\n");
1327 vmw_dmabuf_unreference(&res->backup);
1328 ret = -EINVAL;
1329 goto out_unlock;
1330 } else {
1331 backup_handle = req->buffer_handle;
1332 }
1333 }
1334 } else if (req->drm_surface_flags & drm_vmw_surface_flag_create_buffer)
1335 ret = vmw_user_dmabuf_alloc(dev_priv, tfile,
1336 res->backup_size,
1337 req->drm_surface_flags &
1338 drm_vmw_surface_flag_shareable,
1339 &backup_handle,
1340 &res->backup,
1341 &user_srf->backup_base);
1342
1343 if (unlikely(ret != 0)) {
1344 vmw_resource_unreference(&res);
1345 goto out_unlock;
1346 }
1347
1348 tmp = vmw_resource_reference(res);
1349 ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
1350 req->drm_surface_flags &
1351 drm_vmw_surface_flag_shareable,
1352 VMW_RES_SURFACE,
1353 &vmw_user_surface_base_release, NULL);
1354
1355 if (unlikely(ret != 0)) {
1356 vmw_resource_unreference(&tmp);
1357 vmw_resource_unreference(&res);
1358 goto out_unlock;
1359 }
1360
1361 rep->handle = user_srf->prime.base.hash.key;
1362 rep->backup_size = res->backup_size;
1363 if (res->backup) {
1364 rep->buffer_map_handle =
1365 drm_vma_node_offset_addr(&res->backup->base.vma_node);
1366 rep->buffer_size = res->backup->base.num_pages * PAGE_SIZE;
1367 rep->buffer_handle = backup_handle;
1368 } else {
1369 rep->buffer_map_handle = 0;
1370 rep->buffer_size = 0;
1371 rep->buffer_handle = SVGA3D_INVALID_ID;
1372 }
1373
1374 vmw_resource_unreference(&res);
1375
1376out_unlock:
1377 ttm_read_unlock(&dev_priv->reservation_sem);
1378 return ret;
1379}
1380
1381/**
1382 * vmw_gb_surface_reference_ioctl - Ioctl function implementing
1383 * the user surface reference functionality.
1384 *
1385 * @dev: Pointer to a struct drm_device.
1386 * @data: Pointer to data copied from / to user-space.
1387 * @file_priv: Pointer to a drm file private structure.
1388 */
1389int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
1390 struct drm_file *file_priv)
1391{
1392 struct vmw_private *dev_priv = vmw_priv(dev);
1393 union drm_vmw_gb_surface_reference_arg *arg =
1394 (union drm_vmw_gb_surface_reference_arg *)data;
1395 struct drm_vmw_surface_arg *req = &arg->req;
1396 struct drm_vmw_gb_surface_ref_rep *rep = &arg->rep;
1397 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
1398 struct vmw_surface *srf;
1399 struct vmw_user_surface *user_srf;
1400 struct ttm_base_object *base;
1401 uint32_t backup_handle;
1402 int ret = -EINVAL;
1403
1404 ret = vmw_surface_handle_reference(dev_priv, file_priv, req->sid,
1405 req->handle_type, &base);
1406 if (unlikely(ret != 0))
1407 return ret;
1408
1409 user_srf = container_of(base, struct vmw_user_surface, prime.base);
1410 srf = &user_srf->srf;
1411 if (!srf->res.backup) {
1412 DRM_ERROR("Shared GB surface is missing a backup buffer.\n");
1413 goto out_bad_resource;
1414 }
1415
1416 mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */
1417 ret = vmw_user_dmabuf_reference(tfile, srf->res.backup,
1418 &backup_handle);
1419 mutex_unlock(&dev_priv->cmdbuf_mutex);
1420
1421 if (unlikely(ret != 0)) {
1422 DRM_ERROR("Could not add a reference to a GB surface "
1423 "backup buffer.\n");
1424 (void) ttm_ref_object_base_unref(tfile, base->hash.key,
1425 TTM_REF_USAGE);
1426 goto out_bad_resource;
1427 }
1428
1429 rep->creq.svga3d_flags = srf->flags;
1430 rep->creq.format = srf->format;
1431 rep->creq.mip_levels = srf->mip_levels[0];
1432 rep->creq.drm_surface_flags = 0;
1433 rep->creq.multisample_count = srf->multisample_count;
1434 rep->creq.autogen_filter = srf->autogen_filter;
1435 rep->creq.array_size = srf->array_size;
1436 rep->creq.buffer_handle = backup_handle;
1437 rep->creq.base_size = srf->base_size;
1438 rep->crep.handle = user_srf->prime.base.hash.key;
1439 rep->crep.backup_size = srf->res.backup_size;
1440 rep->crep.buffer_handle = backup_handle;
1441 rep->crep.buffer_map_handle =
1442 drm_vma_node_offset_addr(&srf->res.backup->base.vma_node);
1443 rep->crep.buffer_size = srf->res.backup->base.num_pages * PAGE_SIZE;
1444
1445out_bad_resource:
1446 ttm_base_object_unref(&base);
1447
1448 return ret;
1449}
1450
1451/**
1452 * vmw_surface_gb_priv_define - Define a private GB surface
1453 *
1454 * @dev: Pointer to a struct drm_device
1455 * @user_accounting_size: Used to track user-space memory usage, set
1456 * to 0 for kernel mode only memory
1457 * @svga3d_flags: SVGA3d surface flags for the device
1458 * @format: requested surface format
1459 * @for_scanout: true if inteded to be used for scanout buffer
1460 * @num_mip_levels: number of MIP levels
1461 * @multisample_count:
1462 * @array_size: Surface array size.
1463 * @size: width, heigh, depth of the surface requested
1464 * @user_srf_out: allocated user_srf. Set to NULL on failure.
1465 *
1466 * GB surfaces allocated by this function will not have a user mode handle, and
1467 * thus will only be visible to vmwgfx. For optimization reasons the
1468 * surface may later be given a user mode handle by another function to make
1469 * it available to user mode drivers.
1470 */
1471int vmw_surface_gb_priv_define(struct drm_device *dev,
1472 uint32_t user_accounting_size,
1473 uint32_t svga3d_flags,
1474 SVGA3dSurfaceFormat format,
1475 bool for_scanout,
1476 uint32_t num_mip_levels,
1477 uint32_t multisample_count,
1478 uint32_t array_size,
1479 struct drm_vmw_size size,
1480 struct vmw_surface **srf_out)
1481{
1482 struct vmw_private *dev_priv = vmw_priv(dev);
1483 struct vmw_user_surface *user_srf;
1484 struct ttm_operation_ctx ctx = {
1485 .interruptible = true,
1486 .no_wait_gpu = false
1487 };
1488 struct vmw_surface *srf;
1489 int ret;
1490 u32 num_layers;
1491
1492 *srf_out = NULL;
1493
1494 if (for_scanout) {
1495 uint32_t max_width, max_height;
1496
1497 if (!svga3dsurface_is_screen_target_format(format)) {
1498 DRM_ERROR("Invalid Screen Target surface format.");
1499 return -EINVAL;
1500 }
1501
1502 max_width = min(dev_priv->texture_max_width,
1503 dev_priv->stdu_max_width);
1504 max_height = min(dev_priv->texture_max_height,
1505 dev_priv->stdu_max_height);
1506
1507 if (size.width > max_width || size.height > max_height) {
1508 DRM_ERROR("%ux%u\n, exceeds max surface size %ux%u",
1509 size.width, size.height,
1510 max_width, max_height);
1511 return -EINVAL;
1512 }
1513 } else {
1514 const struct svga3d_surface_desc *desc;
1515
1516 desc = svga3dsurface_get_desc(format);
1517 if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
1518 DRM_ERROR("Invalid surface format.\n");
1519 return -EINVAL;
1520 }
1521 }
1522
1523 /* array_size must be null for non-GL3 host. */
1524 if (array_size > 0 && !dev_priv->has_dx) {
1525 DRM_ERROR("Tried to create DX surface on non-DX host.\n");
1526 return -EINVAL;
1527 }
1528
1529 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
1530 if (unlikely(ret != 0))
1531 return ret;
1532
1533 ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
1534 user_accounting_size, &ctx);
1535 if (unlikely(ret != 0)) {
1536 if (ret != -ERESTARTSYS)
1537 DRM_ERROR("Out of graphics memory for surface"
1538 " creation.\n");
1539 goto out_unlock;
1540 }
1541
1542 user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
1543 if (unlikely(!user_srf)) {
1544 ret = -ENOMEM;
1545 goto out_no_user_srf;
1546 }
1547
1548 *srf_out = &user_srf->srf;
1549 user_srf->size = user_accounting_size;
1550 user_srf->prime.base.shareable = false;
1551 user_srf->prime.base.tfile = NULL;
1552
1553 srf = &user_srf->srf;
1554 srf->flags = svga3d_flags;
1555 srf->format = format;
1556 srf->scanout = for_scanout;
1557 srf->mip_levels[0] = num_mip_levels;
1558 srf->num_sizes = 1;
1559 srf->sizes = NULL;
1560 srf->offsets = NULL;
1561 srf->base_size = size;
1562 srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
1563 srf->array_size = array_size;
1564 srf->multisample_count = multisample_count;
1565
1566 if (array_size)
1567 num_layers = array_size;
1568 else if (svga3d_flags & SVGA3D_SURFACE_CUBEMAP)
1569 num_layers = SVGA3D_MAX_SURFACE_FACES;
1570 else
1571 num_layers = 1;
1572
1573 srf->res.backup_size =
1574 svga3dsurface_get_serialized_size(srf->format,
1575 srf->base_size,
1576 srf->mip_levels[0],
1577 num_layers);
1578
1579 if (srf->flags & SVGA3D_SURFACE_BIND_STREAM_OUTPUT)
1580 srf->res.backup_size += sizeof(SVGA3dDXSOState);
1581
1582 if (dev_priv->active_display_unit == vmw_du_screen_target &&
1583 for_scanout)
1584 srf->flags |= SVGA3D_SURFACE_SCREENTARGET;
1585
1586 /*
1587 * From this point, the generic resource management functions
1588 * destroy the object on failure.
1589 */
1590 ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
1591
1592 ttm_read_unlock(&dev_priv->reservation_sem);
1593 return ret;
1594
1595out_no_user_srf:
1596 ttm_mem_global_free(vmw_mem_glob(dev_priv), user_accounting_size);
1597
1598out_unlock:
1599 ttm_read_unlock(&dev_priv->reservation_sem);
1600 return ret;
1601}