1 /**************************************************************************
3 * Copyright © 2009-2012 VMware, Inc., Palo Alto, CA., USA
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 #include "vmwgfx_drv.h"
29 #include "vmwgfx_resource_priv.h"
30 #include "ttm/ttm_placement.h"
32 struct vmw_user_context {
33 struct ttm_base_object base;
34 struct vmw_resource res;
35 struct vmw_ctx_binding_state cbs;
36 struct vmw_cmdbuf_res_manager *man;
41 typedef int (*vmw_scrub_func)(struct vmw_ctx_bindinfo *, bool);
43 static void vmw_user_context_free(struct vmw_resource *res);
44 static struct vmw_resource *
45 vmw_user_context_base_to_res(struct ttm_base_object *base);
47 static int vmw_gb_context_create(struct vmw_resource *res);
48 static int vmw_gb_context_bind(struct vmw_resource *res,
49 struct ttm_validate_buffer *val_buf);
50 static int vmw_gb_context_unbind(struct vmw_resource *res,
52 struct ttm_validate_buffer *val_buf);
53 static int vmw_gb_context_destroy(struct vmw_resource *res);
54 static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi, bool rebind);
55 static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi,
57 static int vmw_context_scrub_texture(struct vmw_ctx_bindinfo *bi, bool rebind);
58 static void vmw_context_binding_state_scrub(struct vmw_ctx_binding_state *cbs);
59 static void vmw_context_binding_state_kill(struct vmw_ctx_binding_state *cbs);
60 static uint64_t vmw_user_context_size;
62 static const struct vmw_user_resource_conv user_context_conv = {
63 .object_type = VMW_RES_CONTEXT,
64 .base_obj_to_res = vmw_user_context_base_to_res,
65 .res_free = vmw_user_context_free
68 const struct vmw_user_resource_conv *user_context_converter =
72 static const struct vmw_res_func vmw_legacy_context_func = {
73 .res_type = vmw_res_context,
74 .needs_backup = false,
76 .type_name = "legacy contexts",
77 .backup_placement = NULL,
84 static const struct vmw_res_func vmw_gb_context_func = {
85 .res_type = vmw_res_context,
88 .type_name = "guest backed contexts",
89 .backup_placement = &vmw_mob_placement,
90 .create = vmw_gb_context_create,
91 .destroy = vmw_gb_context_destroy,
92 .bind = vmw_gb_context_bind,
93 .unbind = vmw_gb_context_unbind
96 static const vmw_scrub_func vmw_scrub_funcs[vmw_ctx_binding_max] = {
97 [vmw_ctx_binding_shader] = vmw_context_scrub_shader,
98 [vmw_ctx_binding_rt] = vmw_context_scrub_render_target,
99 [vmw_ctx_binding_tex] = vmw_context_scrub_texture };
102 * Context management:
105 static void vmw_hw_context_destroy(struct vmw_resource *res)
107 struct vmw_user_context *uctx =
108 container_of(res, struct vmw_user_context, res);
109 struct vmw_private *dev_priv = res->dev_priv;
111 SVGA3dCmdHeader header;
112 SVGA3dCmdDestroyContext body;
116 if (res->func->destroy == vmw_gb_context_destroy) {
117 mutex_lock(&dev_priv->cmdbuf_mutex);
118 vmw_cmdbuf_res_man_destroy(uctx->man);
119 mutex_lock(&dev_priv->binding_mutex);
120 (void) vmw_context_binding_state_kill(&uctx->cbs);
121 (void) vmw_gb_context_destroy(res);
122 mutex_unlock(&dev_priv->binding_mutex);
123 if (dev_priv->pinned_bo != NULL &&
124 !dev_priv->query_cid_valid)
125 __vmw_execbuf_release_pinned_bo(dev_priv, NULL);
126 mutex_unlock(&dev_priv->cmdbuf_mutex);
130 vmw_execbuf_release_pinned_bo(dev_priv);
131 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
132 if (unlikely(cmd == NULL)) {
133 DRM_ERROR("Failed reserving FIFO space for surface "
138 cmd->header.id = SVGA_3D_CMD_CONTEXT_DESTROY;
139 cmd->header.size = sizeof(cmd->body);
140 cmd->body.cid = res->id;
142 vmw_fifo_commit(dev_priv, sizeof(*cmd));
143 vmw_fifo_resource_dec(dev_priv);
146 static int vmw_gb_context_init(struct vmw_private *dev_priv,
147 struct vmw_resource *res,
148 void (*res_free) (struct vmw_resource *res))
151 struct vmw_user_context *uctx =
152 container_of(res, struct vmw_user_context, res);
154 ret = vmw_resource_init(dev_priv, res, true,
155 res_free, &vmw_gb_context_func);
156 res->backup_size = SVGA3D_CONTEXT_DATA_SIZE;
157 if (unlikely(ret != 0))
160 if (dev_priv->has_mob) {
161 uctx->man = vmw_cmdbuf_res_man_create(dev_priv);
162 if (unlikely(IS_ERR(uctx->man))) {
163 ret = PTR_ERR(uctx->man);
169 memset(&uctx->cbs, 0, sizeof(uctx->cbs));
170 INIT_LIST_HEAD(&uctx->cbs.list);
172 vmw_resource_activate(res, vmw_hw_context_destroy);
183 static int vmw_context_init(struct vmw_private *dev_priv,
184 struct vmw_resource *res,
185 void (*res_free) (struct vmw_resource *res))
190 SVGA3dCmdHeader header;
191 SVGA3dCmdDefineContext body;
194 if (dev_priv->has_mob)
195 return vmw_gb_context_init(dev_priv, res, res_free);
197 ret = vmw_resource_init(dev_priv, res, false,
198 res_free, &vmw_legacy_context_func);
200 if (unlikely(ret != 0)) {
201 DRM_ERROR("Failed to allocate a resource id.\n");
205 if (unlikely(res->id >= SVGA3D_MAX_CONTEXT_IDS)) {
206 DRM_ERROR("Out of hw context ids.\n");
207 vmw_resource_unreference(&res);
211 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
212 if (unlikely(cmd == NULL)) {
213 DRM_ERROR("Fifo reserve failed.\n");
214 vmw_resource_unreference(&res);
218 cmd->header.id = SVGA_3D_CMD_CONTEXT_DEFINE;
219 cmd->header.size = sizeof(cmd->body);
220 cmd->body.cid = res->id;
222 vmw_fifo_commit(dev_priv, sizeof(*cmd));
223 vmw_fifo_resource_inc(dev_priv);
224 vmw_resource_activate(res, vmw_hw_context_destroy);
228 if (res_free == NULL)
235 struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv)
237 struct vmw_resource *res = kmalloc(sizeof(*res), GFP_KERNEL);
240 if (unlikely(res == NULL))
243 ret = vmw_context_init(dev_priv, res, NULL);
245 return (ret == 0) ? res : NULL;
249 static int vmw_gb_context_create(struct vmw_resource *res)
251 struct vmw_private *dev_priv = res->dev_priv;
254 SVGA3dCmdHeader header;
255 SVGA3dCmdDefineGBContext body;
258 if (likely(res->id != -1))
261 ret = vmw_resource_alloc_id(res);
262 if (unlikely(ret != 0)) {
263 DRM_ERROR("Failed to allocate a context id.\n");
267 if (unlikely(res->id >= VMWGFX_NUM_GB_CONTEXT)) {
272 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
273 if (unlikely(cmd == NULL)) {
274 DRM_ERROR("Failed reserving FIFO space for context "
280 cmd->header.id = SVGA_3D_CMD_DEFINE_GB_CONTEXT;
281 cmd->header.size = sizeof(cmd->body);
282 cmd->body.cid = res->id;
283 vmw_fifo_commit(dev_priv, sizeof(*cmd));
284 vmw_fifo_resource_inc(dev_priv);
289 vmw_resource_release_id(res);
294 static int vmw_gb_context_bind(struct vmw_resource *res,
295 struct ttm_validate_buffer *val_buf)
297 struct vmw_private *dev_priv = res->dev_priv;
299 SVGA3dCmdHeader header;
300 SVGA3dCmdBindGBContext body;
302 struct ttm_buffer_object *bo = val_buf->bo;
304 BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
306 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
307 if (unlikely(cmd == NULL)) {
308 DRM_ERROR("Failed reserving FIFO space for context "
313 cmd->header.id = SVGA_3D_CMD_BIND_GB_CONTEXT;
314 cmd->header.size = sizeof(cmd->body);
315 cmd->body.cid = res->id;
316 cmd->body.mobid = bo->mem.start;
317 cmd->body.validContents = res->backup_dirty;
318 res->backup_dirty = false;
319 vmw_fifo_commit(dev_priv, sizeof(*cmd));
324 static int vmw_gb_context_unbind(struct vmw_resource *res,
326 struct ttm_validate_buffer *val_buf)
328 struct vmw_private *dev_priv = res->dev_priv;
329 struct ttm_buffer_object *bo = val_buf->bo;
330 struct vmw_fence_obj *fence;
331 struct vmw_user_context *uctx =
332 container_of(res, struct vmw_user_context, res);
335 SVGA3dCmdHeader header;
336 SVGA3dCmdReadbackGBContext body;
339 SVGA3dCmdHeader header;
340 SVGA3dCmdBindGBContext body;
342 uint32_t submit_size;
346 BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
348 mutex_lock(&dev_priv->binding_mutex);
349 vmw_context_binding_state_scrub(&uctx->cbs);
351 submit_size = sizeof(*cmd2) + (readback ? sizeof(*cmd1) : 0);
353 cmd = vmw_fifo_reserve(dev_priv, submit_size);
354 if (unlikely(cmd == NULL)) {
355 DRM_ERROR("Failed reserving FIFO space for context "
357 mutex_unlock(&dev_priv->binding_mutex);
364 cmd1->header.id = SVGA_3D_CMD_READBACK_GB_CONTEXT;
365 cmd1->header.size = sizeof(cmd1->body);
366 cmd1->body.cid = res->id;
367 cmd2 = (void *) (&cmd1[1]);
369 cmd2->header.id = SVGA_3D_CMD_BIND_GB_CONTEXT;
370 cmd2->header.size = sizeof(cmd2->body);
371 cmd2->body.cid = res->id;
372 cmd2->body.mobid = SVGA3D_INVALID_ID;
374 vmw_fifo_commit(dev_priv, submit_size);
375 mutex_unlock(&dev_priv->binding_mutex);
378 * Create a fence object and fence the backup buffer.
381 (void) vmw_execbuf_fence_commands(NULL, dev_priv,
384 vmw_fence_single_bo(bo, fence);
386 if (likely(fence != NULL))
387 vmw_fence_obj_unreference(&fence);
392 static int vmw_gb_context_destroy(struct vmw_resource *res)
394 struct vmw_private *dev_priv = res->dev_priv;
396 SVGA3dCmdHeader header;
397 SVGA3dCmdDestroyGBContext body;
400 if (likely(res->id == -1))
403 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
404 if (unlikely(cmd == NULL)) {
405 DRM_ERROR("Failed reserving FIFO space for context "
410 cmd->header.id = SVGA_3D_CMD_DESTROY_GB_CONTEXT;
411 cmd->header.size = sizeof(cmd->body);
412 cmd->body.cid = res->id;
413 vmw_fifo_commit(dev_priv, sizeof(*cmd));
414 if (dev_priv->query_cid == res->id)
415 dev_priv->query_cid_valid = false;
416 vmw_resource_release_id(res);
417 vmw_fifo_resource_dec(dev_priv);
423 * User-space context management:
426 static struct vmw_resource *
427 vmw_user_context_base_to_res(struct ttm_base_object *base)
429 return &(container_of(base, struct vmw_user_context, base)->res);
432 static void vmw_user_context_free(struct vmw_resource *res)
434 struct vmw_user_context *ctx =
435 container_of(res, struct vmw_user_context, res);
436 struct vmw_private *dev_priv = res->dev_priv;
438 ttm_base_object_kfree(ctx, base);
439 ttm_mem_global_free(vmw_mem_glob(dev_priv),
440 vmw_user_context_size);
444 * This function is called when user space has no more references on the
445 * base object. It releases the base-object's reference on the resource object.
448 static void vmw_user_context_base_release(struct ttm_base_object **p_base)
450 struct ttm_base_object *base = *p_base;
451 struct vmw_user_context *ctx =
452 container_of(base, struct vmw_user_context, base);
453 struct vmw_resource *res = &ctx->res;
456 vmw_resource_unreference(&res);
459 int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
460 struct drm_file *file_priv)
462 struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data;
463 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
465 return ttm_ref_object_base_unref(tfile, arg->cid, TTM_REF_USAGE);
468 int vmw_context_define_ioctl(struct drm_device *dev, void *data,
469 struct drm_file *file_priv)
471 struct vmw_private *dev_priv = vmw_priv(dev);
472 struct vmw_user_context *ctx;
473 struct vmw_resource *res;
474 struct vmw_resource *tmp;
475 struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data;
476 struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
481 * Approximate idr memory usage with 128 bytes. It will be limited
482 * by maximum number_of contexts anyway.
485 if (unlikely(vmw_user_context_size == 0))
486 vmw_user_context_size = ttm_round_pot(sizeof(*ctx)) + 128 +
487 ((dev_priv->has_mob) ? vmw_cmdbuf_res_man_size() : 0);
489 ret = ttm_read_lock(&dev_priv->reservation_sem, true);
490 if (unlikely(ret != 0))
493 ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
494 vmw_user_context_size,
496 if (unlikely(ret != 0)) {
497 if (ret != -ERESTARTSYS)
498 DRM_ERROR("Out of graphics memory for context"
503 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
504 if (unlikely(ctx == NULL)) {
505 ttm_mem_global_free(vmw_mem_glob(dev_priv),
506 vmw_user_context_size);
512 ctx->base.shareable = false;
513 ctx->base.tfile = NULL;
516 * From here on, the destructor takes over resource freeing.
519 ret = vmw_context_init(dev_priv, res, vmw_user_context_free);
520 if (unlikely(ret != 0))
523 tmp = vmw_resource_reference(&ctx->res);
524 ret = ttm_base_object_init(tfile, &ctx->base, false, VMW_RES_CONTEXT,
525 &vmw_user_context_base_release, NULL);
527 if (unlikely(ret != 0)) {
528 vmw_resource_unreference(&tmp);
532 arg->cid = ctx->base.hash.key;
534 vmw_resource_unreference(&res);
536 ttm_read_unlock(&dev_priv->reservation_sem);
542 * vmw_context_scrub_shader - scrub a shader binding from a context.
544 * @bi: single binding information.
545 * @rebind: Whether to issue a bind instead of scrub command.
547 static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi, bool rebind)
549 struct vmw_private *dev_priv = bi->ctx->dev_priv;
551 SVGA3dCmdHeader header;
552 SVGA3dCmdSetShader body;
555 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
556 if (unlikely(cmd == NULL)) {
557 DRM_ERROR("Failed reserving FIFO space for shader "
562 cmd->header.id = SVGA_3D_CMD_SET_SHADER;
563 cmd->header.size = sizeof(cmd->body);
564 cmd->body.cid = bi->ctx->id;
565 cmd->body.type = bi->i1.shader_type;
566 cmd->body.shid = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
567 vmw_fifo_commit(dev_priv, sizeof(*cmd));
573 * vmw_context_scrub_render_target - scrub a render target binding
576 * @bi: single binding information.
577 * @rebind: Whether to issue a bind instead of scrub command.
579 static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi,
582 struct vmw_private *dev_priv = bi->ctx->dev_priv;
584 SVGA3dCmdHeader header;
585 SVGA3dCmdSetRenderTarget body;
588 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
589 if (unlikely(cmd == NULL)) {
590 DRM_ERROR("Failed reserving FIFO space for render target "
595 cmd->header.id = SVGA_3D_CMD_SETRENDERTARGET;
596 cmd->header.size = sizeof(cmd->body);
597 cmd->body.cid = bi->ctx->id;
598 cmd->body.type = bi->i1.rt_type;
599 cmd->body.target.sid = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
600 cmd->body.target.face = 0;
601 cmd->body.target.mipmap = 0;
602 vmw_fifo_commit(dev_priv, sizeof(*cmd));
608 * vmw_context_scrub_texture - scrub a texture binding from a context.
610 * @bi: single binding information.
611 * @rebind: Whether to issue a bind instead of scrub command.
613 * TODO: Possibly complement this function with a function that takes
614 * a list of texture bindings and combines them to a single command.
616 static int vmw_context_scrub_texture(struct vmw_ctx_bindinfo *bi,
619 struct vmw_private *dev_priv = bi->ctx->dev_priv;
621 SVGA3dCmdHeader header;
623 SVGA3dCmdSetTextureState c;
624 SVGA3dTextureState s1;
628 cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
629 if (unlikely(cmd == NULL)) {
630 DRM_ERROR("Failed reserving FIFO space for texture "
636 cmd->header.id = SVGA_3D_CMD_SETTEXTURESTATE;
637 cmd->header.size = sizeof(cmd->body);
638 cmd->body.c.cid = bi->ctx->id;
639 cmd->body.s1.stage = bi->i1.texture_stage;
640 cmd->body.s1.name = SVGA3D_TS_BIND_TEXTURE;
641 cmd->body.s1.value = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
642 vmw_fifo_commit(dev_priv, sizeof(*cmd));
648 * vmw_context_binding_drop: Stop tracking a context binding
650 * @cb: Pointer to binding tracker storage.
652 * Stops tracking a context binding, and re-initializes its storage.
653 * Typically used when the context binding is replaced with a binding to
654 * another (or the same, for that matter) resource.
656 static void vmw_context_binding_drop(struct vmw_ctx_binding *cb)
658 list_del(&cb->ctx_list);
659 if (!list_empty(&cb->res_list))
660 list_del(&cb->res_list);
665 * vmw_context_binding_add: Start tracking a context binding
667 * @cbs: Pointer to the context binding state tracker.
668 * @bi: Information about the binding to track.
670 * Performs basic checks on the binding to make sure arguments are within
671 * bounds and then starts tracking the binding in the context binding
672 * state structure @cbs.
674 int vmw_context_binding_add(struct vmw_ctx_binding_state *cbs,
675 const struct vmw_ctx_bindinfo *bi)
677 struct vmw_ctx_binding *loc;
680 case vmw_ctx_binding_rt:
681 if (unlikely((unsigned)bi->i1.rt_type >= SVGA3D_RT_MAX)) {
682 DRM_ERROR("Illegal render target type %u.\n",
683 (unsigned) bi->i1.rt_type);
686 loc = &cbs->render_targets[bi->i1.rt_type];
688 case vmw_ctx_binding_tex:
689 if (unlikely((unsigned)bi->i1.texture_stage >=
690 SVGA3D_NUM_TEXTURE_UNITS)) {
691 DRM_ERROR("Illegal texture/sampler unit %u.\n",
692 (unsigned) bi->i1.texture_stage);
695 loc = &cbs->texture_units[bi->i1.texture_stage];
697 case vmw_ctx_binding_shader:
698 if (unlikely((unsigned)bi->i1.shader_type >=
699 SVGA3D_SHADERTYPE_PREDX_MAX)) {
700 DRM_ERROR("Illegal shader type %u.\n",
701 (unsigned) bi->i1.shader_type);
704 loc = &cbs->shaders[bi->i1.shader_type];
710 if (loc->bi.ctx != NULL)
711 vmw_context_binding_drop(loc);
714 loc->bi.scrubbed = false;
715 list_add_tail(&loc->ctx_list, &cbs->list);
716 INIT_LIST_HEAD(&loc->res_list);
722 * vmw_context_binding_transfer: Transfer a context binding tracking entry.
724 * @cbs: Pointer to the persistent context binding state tracker.
725 * @bi: Information about the binding to track.
728 static void vmw_context_binding_transfer(struct vmw_ctx_binding_state *cbs,
729 const struct vmw_ctx_bindinfo *bi)
731 struct vmw_ctx_binding *loc;
734 case vmw_ctx_binding_rt:
735 loc = &cbs->render_targets[bi->i1.rt_type];
737 case vmw_ctx_binding_tex:
738 loc = &cbs->texture_units[bi->i1.texture_stage];
740 case vmw_ctx_binding_shader:
741 loc = &cbs->shaders[bi->i1.shader_type];
747 if (loc->bi.ctx != NULL)
748 vmw_context_binding_drop(loc);
750 if (bi->res != NULL) {
752 list_add_tail(&loc->ctx_list, &cbs->list);
753 list_add_tail(&loc->res_list, &bi->res->binding_head);
758 * vmw_context_binding_kill - Kill a binding on the device
759 * and stop tracking it.
761 * @cb: Pointer to binding tracker storage.
763 * Emits FIFO commands to scrub a binding represented by @cb.
764 * Then stops tracking the binding and re-initializes its storage.
766 static void vmw_context_binding_kill(struct vmw_ctx_binding *cb)
768 if (!cb->bi.scrubbed) {
769 (void) vmw_scrub_funcs[cb->bi.bt](&cb->bi, false);
770 cb->bi.scrubbed = true;
772 vmw_context_binding_drop(cb);
776 * vmw_context_binding_state_kill - Kill all bindings associated with a
777 * struct vmw_ctx_binding state structure, and re-initialize the structure.
779 * @cbs: Pointer to the context binding state tracker.
781 * Emits commands to scrub all bindings associated with the
782 * context binding state tracker. Then re-initializes the whole structure.
784 static void vmw_context_binding_state_kill(struct vmw_ctx_binding_state *cbs)
786 struct vmw_ctx_binding *entry, *next;
788 list_for_each_entry_safe(entry, next, &cbs->list, ctx_list)
789 vmw_context_binding_kill(entry);
793 * vmw_context_binding_state_scrub - Scrub all bindings associated with a
794 * struct vmw_ctx_binding state structure.
796 * @cbs: Pointer to the context binding state tracker.
798 * Emits commands to scrub all bindings associated with the
799 * context binding state tracker.
801 static void vmw_context_binding_state_scrub(struct vmw_ctx_binding_state *cbs)
803 struct vmw_ctx_binding *entry;
805 list_for_each_entry(entry, &cbs->list, ctx_list) {
806 if (!entry->bi.scrubbed) {
807 (void) vmw_scrub_funcs[entry->bi.bt](&entry->bi, false);
808 entry->bi.scrubbed = true;
814 * vmw_context_binding_res_list_kill - Kill all bindings on a
815 * resource binding list
817 * @head: list head of resource binding list
819 * Kills all bindings associated with a specific resource. Typically
820 * called before the resource is destroyed.
822 void vmw_context_binding_res_list_kill(struct list_head *head)
824 struct vmw_ctx_binding *entry, *next;
826 list_for_each_entry_safe(entry, next, head, res_list)
827 vmw_context_binding_kill(entry);
831 * vmw_context_binding_res_list_scrub - Scrub all bindings on a
832 * resource binding list
834 * @head: list head of resource binding list
836 * Scrub all bindings associated with a specific resource. Typically
837 * called before the resource is evicted.
839 void vmw_context_binding_res_list_scrub(struct list_head *head)
841 struct vmw_ctx_binding *entry;
843 list_for_each_entry(entry, head, res_list) {
844 if (!entry->bi.scrubbed) {
845 (void) vmw_scrub_funcs[entry->bi.bt](&entry->bi, false);
846 entry->bi.scrubbed = true;
852 * vmw_context_binding_state_transfer - Commit staged binding info
854 * @ctx: Pointer to context to commit the staged binding info to.
855 * @from: Staged binding info built during execbuf.
857 * Transfers binding info from a temporary structure to the persistent
858 * structure in the context. This can be done once commands
860 void vmw_context_binding_state_transfer(struct vmw_resource *ctx,
861 struct vmw_ctx_binding_state *from)
863 struct vmw_user_context *uctx =
864 container_of(ctx, struct vmw_user_context, res);
865 struct vmw_ctx_binding *entry, *next;
867 list_for_each_entry_safe(entry, next, &from->list, ctx_list)
868 vmw_context_binding_transfer(&uctx->cbs, &entry->bi);
872 * vmw_context_rebind_all - Rebind all scrubbed bindings of a context
874 * @ctx: The context resource
876 * Walks through the context binding list and rebinds all scrubbed
879 int vmw_context_rebind_all(struct vmw_resource *ctx)
881 struct vmw_ctx_binding *entry;
882 struct vmw_user_context *uctx =
883 container_of(ctx, struct vmw_user_context, res);
884 struct vmw_ctx_binding_state *cbs = &uctx->cbs;
887 list_for_each_entry(entry, &cbs->list, ctx_list) {
888 if (likely(!entry->bi.scrubbed))
891 if (WARN_ON(entry->bi.res == NULL || entry->bi.res->id ==
895 ret = vmw_scrub_funcs[entry->bi.bt](&entry->bi, true);
896 if (unlikely(ret != 0))
899 entry->bi.scrubbed = false;
906 * vmw_context_binding_list - Return a list of context bindings
908 * @ctx: The context resource
910 * Returns the current list of bindings of the given context. Note that
911 * this list becomes stale as soon as the dev_priv::binding_mutex is unlocked.
913 struct list_head *vmw_context_binding_list(struct vmw_resource *ctx)
915 return &(container_of(ctx, struct vmw_user_context, res)->cbs.list);
918 struct vmw_cmdbuf_res_manager *vmw_context_res_man(struct vmw_resource *ctx)
920 return container_of(ctx, struct vmw_user_context, res)->man;