938 lines
24 KiB
C
938 lines
24 KiB
C
/**************************************************************************
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*
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* Copyright © 2009-2015 VMware, Inc., Palo Alto, CA., USA
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include "vmwgfx_drv.h"
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#include "vmwgfx_resource_priv.h"
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#include "vmwgfx_binding.h"
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#include "ttm/ttm_placement.h"
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struct vmw_user_context {
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struct ttm_base_object base;
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struct vmw_resource res;
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struct vmw_ctx_binding_state *cbs;
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struct vmw_cmdbuf_res_manager *man;
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struct vmw_resource *cotables[SVGA_COTABLE_DX10_MAX];
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spinlock_t cotable_lock;
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struct vmw_dma_buffer *dx_query_mob;
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};
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static void vmw_user_context_free(struct vmw_resource *res);
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static struct vmw_resource *
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vmw_user_context_base_to_res(struct ttm_base_object *base);
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static int vmw_gb_context_create(struct vmw_resource *res);
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static int vmw_gb_context_bind(struct vmw_resource *res,
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struct ttm_validate_buffer *val_buf);
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static int vmw_gb_context_unbind(struct vmw_resource *res,
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bool readback,
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struct ttm_validate_buffer *val_buf);
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static int vmw_gb_context_destroy(struct vmw_resource *res);
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static int vmw_dx_context_create(struct vmw_resource *res);
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static int vmw_dx_context_bind(struct vmw_resource *res,
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struct ttm_validate_buffer *val_buf);
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static int vmw_dx_context_unbind(struct vmw_resource *res,
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bool readback,
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struct ttm_validate_buffer *val_buf);
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static int vmw_dx_context_destroy(struct vmw_resource *res);
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static uint64_t vmw_user_context_size;
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static const struct vmw_user_resource_conv user_context_conv = {
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.object_type = VMW_RES_CONTEXT,
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.base_obj_to_res = vmw_user_context_base_to_res,
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.res_free = vmw_user_context_free
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};
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const struct vmw_user_resource_conv *user_context_converter =
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&user_context_conv;
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static const struct vmw_res_func vmw_legacy_context_func = {
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.res_type = vmw_res_context,
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.needs_backup = false,
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.may_evict = false,
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.type_name = "legacy contexts",
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.backup_placement = NULL,
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.create = NULL,
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.destroy = NULL,
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.bind = NULL,
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.unbind = NULL
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};
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static const struct vmw_res_func vmw_gb_context_func = {
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.res_type = vmw_res_context,
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.needs_backup = true,
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.may_evict = true,
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.type_name = "guest backed contexts",
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.backup_placement = &vmw_mob_placement,
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.create = vmw_gb_context_create,
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.destroy = vmw_gb_context_destroy,
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.bind = vmw_gb_context_bind,
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.unbind = vmw_gb_context_unbind
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};
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static const struct vmw_res_func vmw_dx_context_func = {
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.res_type = vmw_res_dx_context,
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.needs_backup = true,
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.may_evict = true,
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.type_name = "dx contexts",
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.backup_placement = &vmw_mob_placement,
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.create = vmw_dx_context_create,
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.destroy = vmw_dx_context_destroy,
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.bind = vmw_dx_context_bind,
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.unbind = vmw_dx_context_unbind
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};
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/**
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* Context management:
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*/
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static void vmw_context_cotables_unref(struct vmw_user_context *uctx)
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{
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struct vmw_resource *res;
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int i;
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for (i = 0; i < SVGA_COTABLE_DX10_MAX; ++i) {
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spin_lock(&uctx->cotable_lock);
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res = uctx->cotables[i];
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uctx->cotables[i] = NULL;
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spin_unlock(&uctx->cotable_lock);
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if (res)
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vmw_resource_unreference(&res);
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}
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}
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static void vmw_hw_context_destroy(struct vmw_resource *res)
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{
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struct vmw_user_context *uctx =
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container_of(res, struct vmw_user_context, res);
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struct vmw_private *dev_priv = res->dev_priv;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdDestroyContext body;
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} *cmd;
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if (res->func->destroy == vmw_gb_context_destroy ||
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res->func->destroy == vmw_dx_context_destroy) {
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mutex_lock(&dev_priv->cmdbuf_mutex);
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vmw_cmdbuf_res_man_destroy(uctx->man);
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mutex_lock(&dev_priv->binding_mutex);
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vmw_binding_state_kill(uctx->cbs);
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(void) res->func->destroy(res);
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mutex_unlock(&dev_priv->binding_mutex);
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if (dev_priv->pinned_bo != NULL &&
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!dev_priv->query_cid_valid)
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__vmw_execbuf_release_pinned_bo(dev_priv, NULL);
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mutex_unlock(&dev_priv->cmdbuf_mutex);
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vmw_context_cotables_unref(uctx);
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return;
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}
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vmw_execbuf_release_pinned_bo(dev_priv);
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cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
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if (unlikely(cmd == NULL)) {
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DRM_ERROR("Failed reserving FIFO space for surface "
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"destruction.\n");
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return;
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}
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cmd->header.id = SVGA_3D_CMD_CONTEXT_DESTROY;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.cid = res->id;
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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vmw_fifo_resource_dec(dev_priv);
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}
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static int vmw_gb_context_init(struct vmw_private *dev_priv,
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bool dx,
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struct vmw_resource *res,
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void (*res_free)(struct vmw_resource *res))
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{
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int ret, i;
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struct vmw_user_context *uctx =
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container_of(res, struct vmw_user_context, res);
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res->backup_size = (dx ? sizeof(SVGADXContextMobFormat) :
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SVGA3D_CONTEXT_DATA_SIZE);
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ret = vmw_resource_init(dev_priv, res, true,
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res_free,
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dx ? &vmw_dx_context_func :
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&vmw_gb_context_func);
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if (unlikely(ret != 0))
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goto out_err;
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if (dev_priv->has_mob) {
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uctx->man = vmw_cmdbuf_res_man_create(dev_priv);
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if (IS_ERR(uctx->man)) {
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ret = PTR_ERR(uctx->man);
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uctx->man = NULL;
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goto out_err;
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}
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}
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uctx->cbs = vmw_binding_state_alloc(dev_priv);
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if (IS_ERR(uctx->cbs)) {
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ret = PTR_ERR(uctx->cbs);
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goto out_err;
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}
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spin_lock_init(&uctx->cotable_lock);
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if (dx) {
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for (i = 0; i < SVGA_COTABLE_DX10_MAX; ++i) {
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uctx->cotables[i] = vmw_cotable_alloc(dev_priv,
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&uctx->res, i);
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if (unlikely(uctx->cotables[i] == NULL)) {
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ret = -ENOMEM;
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goto out_cotables;
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}
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}
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}
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vmw_resource_activate(res, vmw_hw_context_destroy);
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return 0;
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out_cotables:
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vmw_context_cotables_unref(uctx);
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out_err:
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if (res_free)
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res_free(res);
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else
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kfree(res);
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return ret;
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}
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static int vmw_context_init(struct vmw_private *dev_priv,
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struct vmw_resource *res,
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void (*res_free)(struct vmw_resource *res),
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bool dx)
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{
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int ret;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdDefineContext body;
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} *cmd;
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if (dev_priv->has_mob)
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return vmw_gb_context_init(dev_priv, dx, res, res_free);
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ret = vmw_resource_init(dev_priv, res, false,
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res_free, &vmw_legacy_context_func);
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if (unlikely(ret != 0)) {
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DRM_ERROR("Failed to allocate a resource id.\n");
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goto out_early;
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}
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if (unlikely(res->id >= SVGA3D_MAX_CONTEXT_IDS)) {
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DRM_ERROR("Out of hw context ids.\n");
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vmw_resource_unreference(&res);
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return -ENOMEM;
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}
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cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
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if (unlikely(cmd == NULL)) {
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DRM_ERROR("Fifo reserve failed.\n");
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vmw_resource_unreference(&res);
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return -ENOMEM;
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}
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cmd->header.id = SVGA_3D_CMD_CONTEXT_DEFINE;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.cid = res->id;
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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vmw_fifo_resource_inc(dev_priv);
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vmw_resource_activate(res, vmw_hw_context_destroy);
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return 0;
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out_early:
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if (res_free == NULL)
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kfree(res);
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else
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res_free(res);
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return ret;
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}
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/*
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* GB context.
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*/
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static int vmw_gb_context_create(struct vmw_resource *res)
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{
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struct vmw_private *dev_priv = res->dev_priv;
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int ret;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdDefineGBContext body;
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} *cmd;
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if (likely(res->id != -1))
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return 0;
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ret = vmw_resource_alloc_id(res);
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if (unlikely(ret != 0)) {
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DRM_ERROR("Failed to allocate a context id.\n");
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goto out_no_id;
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}
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if (unlikely(res->id >= VMWGFX_NUM_GB_CONTEXT)) {
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ret = -EBUSY;
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goto out_no_fifo;
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}
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cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
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if (unlikely(cmd == NULL)) {
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DRM_ERROR("Failed reserving FIFO space for context "
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"creation.\n");
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ret = -ENOMEM;
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goto out_no_fifo;
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}
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cmd->header.id = SVGA_3D_CMD_DEFINE_GB_CONTEXT;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.cid = res->id;
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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vmw_fifo_resource_inc(dev_priv);
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return 0;
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out_no_fifo:
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vmw_resource_release_id(res);
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out_no_id:
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return ret;
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}
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static int vmw_gb_context_bind(struct vmw_resource *res,
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struct ttm_validate_buffer *val_buf)
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{
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struct vmw_private *dev_priv = res->dev_priv;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdBindGBContext body;
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} *cmd;
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struct ttm_buffer_object *bo = val_buf->bo;
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BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
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cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
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if (unlikely(cmd == NULL)) {
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DRM_ERROR("Failed reserving FIFO space for context "
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"binding.\n");
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return -ENOMEM;
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}
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cmd->header.id = SVGA_3D_CMD_BIND_GB_CONTEXT;
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cmd->header.size = sizeof(cmd->body);
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cmd->body.cid = res->id;
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cmd->body.mobid = bo->mem.start;
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cmd->body.validContents = res->backup_dirty;
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res->backup_dirty = false;
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vmw_fifo_commit(dev_priv, sizeof(*cmd));
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return 0;
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}
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static int vmw_gb_context_unbind(struct vmw_resource *res,
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bool readback,
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struct ttm_validate_buffer *val_buf)
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{
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struct vmw_private *dev_priv = res->dev_priv;
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struct ttm_buffer_object *bo = val_buf->bo;
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struct vmw_fence_obj *fence;
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struct vmw_user_context *uctx =
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container_of(res, struct vmw_user_context, res);
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdReadbackGBContext body;
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} *cmd1;
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struct {
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SVGA3dCmdHeader header;
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SVGA3dCmdBindGBContext body;
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} *cmd2;
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uint32_t submit_size;
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uint8_t *cmd;
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|
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BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
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|
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mutex_lock(&dev_priv->binding_mutex);
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vmw_binding_state_scrub(uctx->cbs);
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submit_size = sizeof(*cmd2) + (readback ? sizeof(*cmd1) : 0);
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cmd = vmw_fifo_reserve(dev_priv, submit_size);
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if (unlikely(cmd == NULL)) {
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DRM_ERROR("Failed reserving FIFO space for context "
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"unbinding.\n");
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mutex_unlock(&dev_priv->binding_mutex);
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return -ENOMEM;
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}
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|
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cmd2 = (void *) cmd;
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if (readback) {
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cmd1 = (void *) cmd;
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cmd1->header.id = SVGA_3D_CMD_READBACK_GB_CONTEXT;
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cmd1->header.size = sizeof(cmd1->body);
|
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cmd1->body.cid = res->id;
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cmd2 = (void *) (&cmd1[1]);
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}
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cmd2->header.id = SVGA_3D_CMD_BIND_GB_CONTEXT;
|
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cmd2->header.size = sizeof(cmd2->body);
|
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cmd2->body.cid = res->id;
|
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cmd2->body.mobid = SVGA3D_INVALID_ID;
|
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|
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vmw_fifo_commit(dev_priv, submit_size);
|
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mutex_unlock(&dev_priv->binding_mutex);
|
|
|
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/*
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* Create a fence object and fence the backup buffer.
|
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*/
|
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|
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(void) vmw_execbuf_fence_commands(NULL, dev_priv,
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&fence, NULL);
|
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|
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vmw_fence_single_bo(bo, fence);
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|
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if (likely(fence != NULL))
|
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vmw_fence_obj_unreference(&fence);
|
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|
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return 0;
|
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}
|
|
|
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static int vmw_gb_context_destroy(struct vmw_resource *res)
|
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{
|
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struct vmw_private *dev_priv = res->dev_priv;
|
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struct {
|
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SVGA3dCmdHeader header;
|
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SVGA3dCmdDestroyGBContext body;
|
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} *cmd;
|
|
|
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if (likely(res->id == -1))
|
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return 0;
|
|
|
|
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
|
|
if (unlikely(cmd == NULL)) {
|
|
DRM_ERROR("Failed reserving FIFO space for context "
|
|
"destruction.\n");
|
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return -ENOMEM;
|
|
}
|
|
|
|
cmd->header.id = SVGA_3D_CMD_DESTROY_GB_CONTEXT;
|
|
cmd->header.size = sizeof(cmd->body);
|
|
cmd->body.cid = res->id;
|
|
vmw_fifo_commit(dev_priv, sizeof(*cmd));
|
|
if (dev_priv->query_cid == res->id)
|
|
dev_priv->query_cid_valid = false;
|
|
vmw_resource_release_id(res);
|
|
vmw_fifo_resource_dec(dev_priv);
|
|
|
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return 0;
|
|
}
|
|
|
|
/*
|
|
* DX context.
|
|
*/
|
|
|
|
static int vmw_dx_context_create(struct vmw_resource *res)
|
|
{
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
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int ret;
|
|
struct {
|
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SVGA3dCmdHeader header;
|
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SVGA3dCmdDXDefineContext body;
|
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} *cmd;
|
|
|
|
if (likely(res->id != -1))
|
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return 0;
|
|
|
|
ret = vmw_resource_alloc_id(res);
|
|
if (unlikely(ret != 0)) {
|
|
DRM_ERROR("Failed to allocate a context id.\n");
|
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goto out_no_id;
|
|
}
|
|
|
|
if (unlikely(res->id >= VMWGFX_NUM_DXCONTEXT)) {
|
|
ret = -EBUSY;
|
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goto out_no_fifo;
|
|
}
|
|
|
|
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
|
|
if (unlikely(cmd == NULL)) {
|
|
DRM_ERROR("Failed reserving FIFO space for context "
|
|
"creation.\n");
|
|
ret = -ENOMEM;
|
|
goto out_no_fifo;
|
|
}
|
|
|
|
cmd->header.id = SVGA_3D_CMD_DX_DEFINE_CONTEXT;
|
|
cmd->header.size = sizeof(cmd->body);
|
|
cmd->body.cid = res->id;
|
|
vmw_fifo_commit(dev_priv, sizeof(*cmd));
|
|
vmw_fifo_resource_inc(dev_priv);
|
|
|
|
return 0;
|
|
|
|
out_no_fifo:
|
|
vmw_resource_release_id(res);
|
|
out_no_id:
|
|
return ret;
|
|
}
|
|
|
|
static int vmw_dx_context_bind(struct vmw_resource *res,
|
|
struct ttm_validate_buffer *val_buf)
|
|
{
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdDXBindContext body;
|
|
} *cmd;
|
|
struct ttm_buffer_object *bo = val_buf->bo;
|
|
|
|
BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
|
|
|
|
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
|
|
if (unlikely(cmd == NULL)) {
|
|
DRM_ERROR("Failed reserving FIFO space for context "
|
|
"binding.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cmd->header.id = SVGA_3D_CMD_DX_BIND_CONTEXT;
|
|
cmd->header.size = sizeof(cmd->body);
|
|
cmd->body.cid = res->id;
|
|
cmd->body.mobid = bo->mem.start;
|
|
cmd->body.validContents = res->backup_dirty;
|
|
res->backup_dirty = false;
|
|
vmw_fifo_commit(dev_priv, sizeof(*cmd));
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vmw_dx_context_scrub_cotables - Scrub all bindings and
|
|
* cotables from a context
|
|
*
|
|
* @ctx: Pointer to the context resource
|
|
* @readback: Whether to save the otable contents on scrubbing.
|
|
*
|
|
* COtables must be unbound before their context, but unbinding requires
|
|
* the backup buffer being reserved, whereas scrubbing does not.
|
|
* This function scrubs all cotables of a context, potentially reading back
|
|
* the contents into their backup buffers. However, scrubbing cotables
|
|
* also makes the device context invalid, so scrub all bindings first so
|
|
* that doesn't have to be done later with an invalid context.
|
|
*/
|
|
void vmw_dx_context_scrub_cotables(struct vmw_resource *ctx,
|
|
bool readback)
|
|
{
|
|
struct vmw_user_context *uctx =
|
|
container_of(ctx, struct vmw_user_context, res);
|
|
int i;
|
|
|
|
vmw_binding_state_scrub(uctx->cbs);
|
|
for (i = 0; i < SVGA_COTABLE_DX10_MAX; ++i) {
|
|
struct vmw_resource *res;
|
|
|
|
/* Avoid racing with ongoing cotable destruction. */
|
|
spin_lock(&uctx->cotable_lock);
|
|
res = uctx->cotables[vmw_cotable_scrub_order[i]];
|
|
if (res)
|
|
res = vmw_resource_reference_unless_doomed(res);
|
|
spin_unlock(&uctx->cotable_lock);
|
|
if (!res)
|
|
continue;
|
|
|
|
WARN_ON(vmw_cotable_scrub(res, readback));
|
|
vmw_resource_unreference(&res);
|
|
}
|
|
}
|
|
|
|
static int vmw_dx_context_unbind(struct vmw_resource *res,
|
|
bool readback,
|
|
struct ttm_validate_buffer *val_buf)
|
|
{
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
|
struct ttm_buffer_object *bo = val_buf->bo;
|
|
struct vmw_fence_obj *fence;
|
|
struct vmw_user_context *uctx =
|
|
container_of(res, struct vmw_user_context, res);
|
|
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdDXReadbackContext body;
|
|
} *cmd1;
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdDXBindContext body;
|
|
} *cmd2;
|
|
uint32_t submit_size;
|
|
uint8_t *cmd;
|
|
|
|
|
|
BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
|
|
|
|
mutex_lock(&dev_priv->binding_mutex);
|
|
vmw_dx_context_scrub_cotables(res, readback);
|
|
|
|
if (uctx->dx_query_mob && uctx->dx_query_mob->dx_query_ctx &&
|
|
readback) {
|
|
WARN_ON(uctx->dx_query_mob->dx_query_ctx != res);
|
|
if (vmw_query_readback_all(uctx->dx_query_mob))
|
|
DRM_ERROR("Failed to read back query states\n");
|
|
}
|
|
|
|
submit_size = sizeof(*cmd2) + (readback ? sizeof(*cmd1) : 0);
|
|
|
|
cmd = vmw_fifo_reserve(dev_priv, submit_size);
|
|
if (unlikely(cmd == NULL)) {
|
|
DRM_ERROR("Failed reserving FIFO space for context "
|
|
"unbinding.\n");
|
|
mutex_unlock(&dev_priv->binding_mutex);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cmd2 = (void *) cmd;
|
|
if (readback) {
|
|
cmd1 = (void *) cmd;
|
|
cmd1->header.id = SVGA_3D_CMD_DX_READBACK_CONTEXT;
|
|
cmd1->header.size = sizeof(cmd1->body);
|
|
cmd1->body.cid = res->id;
|
|
cmd2 = (void *) (&cmd1[1]);
|
|
}
|
|
cmd2->header.id = SVGA_3D_CMD_DX_BIND_CONTEXT;
|
|
cmd2->header.size = sizeof(cmd2->body);
|
|
cmd2->body.cid = res->id;
|
|
cmd2->body.mobid = SVGA3D_INVALID_ID;
|
|
|
|
vmw_fifo_commit(dev_priv, submit_size);
|
|
mutex_unlock(&dev_priv->binding_mutex);
|
|
|
|
/*
|
|
* Create a fence object and fence the backup buffer.
|
|
*/
|
|
|
|
(void) vmw_execbuf_fence_commands(NULL, dev_priv,
|
|
&fence, NULL);
|
|
|
|
vmw_fence_single_bo(bo, fence);
|
|
|
|
if (likely(fence != NULL))
|
|
vmw_fence_obj_unreference(&fence);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vmw_dx_context_destroy(struct vmw_resource *res)
|
|
{
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
|
struct {
|
|
SVGA3dCmdHeader header;
|
|
SVGA3dCmdDXDestroyContext body;
|
|
} *cmd;
|
|
|
|
if (likely(res->id == -1))
|
|
return 0;
|
|
|
|
cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
|
|
if (unlikely(cmd == NULL)) {
|
|
DRM_ERROR("Failed reserving FIFO space for context "
|
|
"destruction.\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
cmd->header.id = SVGA_3D_CMD_DX_DESTROY_CONTEXT;
|
|
cmd->header.size = sizeof(cmd->body);
|
|
cmd->body.cid = res->id;
|
|
vmw_fifo_commit(dev_priv, sizeof(*cmd));
|
|
if (dev_priv->query_cid == res->id)
|
|
dev_priv->query_cid_valid = false;
|
|
vmw_resource_release_id(res);
|
|
vmw_fifo_resource_dec(dev_priv);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* User-space context management:
|
|
*/
|
|
|
|
static struct vmw_resource *
|
|
vmw_user_context_base_to_res(struct ttm_base_object *base)
|
|
{
|
|
return &(container_of(base, struct vmw_user_context, base)->res);
|
|
}
|
|
|
|
static void vmw_user_context_free(struct vmw_resource *res)
|
|
{
|
|
struct vmw_user_context *ctx =
|
|
container_of(res, struct vmw_user_context, res);
|
|
struct vmw_private *dev_priv = res->dev_priv;
|
|
|
|
if (ctx->cbs)
|
|
vmw_binding_state_free(ctx->cbs);
|
|
|
|
(void) vmw_context_bind_dx_query(res, NULL);
|
|
|
|
ttm_base_object_kfree(ctx, base);
|
|
ttm_mem_global_free(vmw_mem_glob(dev_priv),
|
|
vmw_user_context_size);
|
|
}
|
|
|
|
/**
|
|
* This function is called when user space has no more references on the
|
|
* base object. It releases the base-object's reference on the resource object.
|
|
*/
|
|
|
|
static void vmw_user_context_base_release(struct ttm_base_object **p_base)
|
|
{
|
|
struct ttm_base_object *base = *p_base;
|
|
struct vmw_user_context *ctx =
|
|
container_of(base, struct vmw_user_context, base);
|
|
struct vmw_resource *res = &ctx->res;
|
|
|
|
*p_base = NULL;
|
|
vmw_resource_unreference(&res);
|
|
}
|
|
|
|
int vmw_context_destroy_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data;
|
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
|
|
|
return ttm_ref_object_base_unref(tfile, arg->cid, TTM_REF_USAGE);
|
|
}
|
|
|
|
static int vmw_context_define(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv, bool dx)
|
|
{
|
|
struct vmw_private *dev_priv = vmw_priv(dev);
|
|
struct vmw_user_context *ctx;
|
|
struct vmw_resource *res;
|
|
struct vmw_resource *tmp;
|
|
struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data;
|
|
struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
|
|
int ret;
|
|
|
|
if (!dev_priv->has_dx && dx) {
|
|
DRM_ERROR("DX contexts not supported by device.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*
|
|
* Approximate idr memory usage with 128 bytes. It will be limited
|
|
* by maximum number_of contexts anyway.
|
|
*/
|
|
|
|
if (unlikely(vmw_user_context_size == 0))
|
|
vmw_user_context_size = ttm_round_pot(sizeof(*ctx)) + 128 +
|
|
((dev_priv->has_mob) ? vmw_cmdbuf_res_man_size() : 0);
|
|
|
|
ret = ttm_read_lock(&dev_priv->reservation_sem, true);
|
|
if (unlikely(ret != 0))
|
|
return ret;
|
|
|
|
ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
|
|
vmw_user_context_size,
|
|
false, true);
|
|
if (unlikely(ret != 0)) {
|
|
if (ret != -ERESTARTSYS)
|
|
DRM_ERROR("Out of graphics memory for context"
|
|
" creation.\n");
|
|
goto out_unlock;
|
|
}
|
|
|
|
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
|
|
if (unlikely(ctx == NULL)) {
|
|
ttm_mem_global_free(vmw_mem_glob(dev_priv),
|
|
vmw_user_context_size);
|
|
ret = -ENOMEM;
|
|
goto out_unlock;
|
|
}
|
|
|
|
res = &ctx->res;
|
|
ctx->base.shareable = false;
|
|
ctx->base.tfile = NULL;
|
|
|
|
/*
|
|
* From here on, the destructor takes over resource freeing.
|
|
*/
|
|
|
|
ret = vmw_context_init(dev_priv, res, vmw_user_context_free, dx);
|
|
if (unlikely(ret != 0))
|
|
goto out_unlock;
|
|
|
|
tmp = vmw_resource_reference(&ctx->res);
|
|
ret = ttm_base_object_init(tfile, &ctx->base, false, VMW_RES_CONTEXT,
|
|
&vmw_user_context_base_release, NULL);
|
|
|
|
if (unlikely(ret != 0)) {
|
|
vmw_resource_unreference(&tmp);
|
|
goto out_err;
|
|
}
|
|
|
|
arg->cid = ctx->base.hash.key;
|
|
out_err:
|
|
vmw_resource_unreference(&res);
|
|
out_unlock:
|
|
ttm_read_unlock(&dev_priv->reservation_sem);
|
|
return ret;
|
|
}
|
|
|
|
int vmw_context_define_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
return vmw_context_define(dev, data, file_priv, false);
|
|
}
|
|
|
|
int vmw_extended_context_define_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv)
|
|
{
|
|
union drm_vmw_extended_context_arg *arg = (typeof(arg)) data;
|
|
struct drm_vmw_context_arg *rep = &arg->rep;
|
|
|
|
switch (arg->req) {
|
|
case drm_vmw_context_legacy:
|
|
return vmw_context_define(dev, rep, file_priv, false);
|
|
case drm_vmw_context_dx:
|
|
return vmw_context_define(dev, rep, file_priv, true);
|
|
default:
|
|
break;
|
|
}
|
|
return -EINVAL;
|
|
}
|
|
|
|
/**
|
|
* vmw_context_binding_list - Return a list of context bindings
|
|
*
|
|
* @ctx: The context resource
|
|
*
|
|
* Returns the current list of bindings of the given context. Note that
|
|
* this list becomes stale as soon as the dev_priv::binding_mutex is unlocked.
|
|
*/
|
|
struct list_head *vmw_context_binding_list(struct vmw_resource *ctx)
|
|
{
|
|
struct vmw_user_context *uctx =
|
|
container_of(ctx, struct vmw_user_context, res);
|
|
|
|
return vmw_binding_state_list(uctx->cbs);
|
|
}
|
|
|
|
struct vmw_cmdbuf_res_manager *vmw_context_res_man(struct vmw_resource *ctx)
|
|
{
|
|
return container_of(ctx, struct vmw_user_context, res)->man;
|
|
}
|
|
|
|
struct vmw_resource *vmw_context_cotable(struct vmw_resource *ctx,
|
|
SVGACOTableType cotable_type)
|
|
{
|
|
if (cotable_type >= SVGA_COTABLE_DX10_MAX)
|
|
return ERR_PTR(-EINVAL);
|
|
|
|
return vmw_resource_reference
|
|
(container_of(ctx, struct vmw_user_context, res)->
|
|
cotables[cotable_type]);
|
|
}
|
|
|
|
/**
|
|
* vmw_context_binding_state -
|
|
* Return a pointer to a context binding state structure
|
|
*
|
|
* @ctx: The context resource
|
|
*
|
|
* Returns the current state of bindings of the given context. Note that
|
|
* this state becomes stale as soon as the dev_priv::binding_mutex is unlocked.
|
|
*/
|
|
struct vmw_ctx_binding_state *
|
|
vmw_context_binding_state(struct vmw_resource *ctx)
|
|
{
|
|
return container_of(ctx, struct vmw_user_context, res)->cbs;
|
|
}
|
|
|
|
/**
|
|
* vmw_context_bind_dx_query -
|
|
* Sets query MOB for the context. If @mob is NULL, then this function will
|
|
* remove the association between the MOB and the context. This function
|
|
* assumes the binding_mutex is held.
|
|
*
|
|
* @ctx_res: The context resource
|
|
* @mob: a reference to the query MOB
|
|
*
|
|
* Returns -EINVAL if a MOB has already been set and does not match the one
|
|
* specified in the parameter. 0 otherwise.
|
|
*/
|
|
int vmw_context_bind_dx_query(struct vmw_resource *ctx_res,
|
|
struct vmw_dma_buffer *mob)
|
|
{
|
|
struct vmw_user_context *uctx =
|
|
container_of(ctx_res, struct vmw_user_context, res);
|
|
|
|
if (mob == NULL) {
|
|
if (uctx->dx_query_mob) {
|
|
uctx->dx_query_mob->dx_query_ctx = NULL;
|
|
vmw_dmabuf_unreference(&uctx->dx_query_mob);
|
|
uctx->dx_query_mob = NULL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Can only have one MOB per context for queries */
|
|
if (uctx->dx_query_mob && uctx->dx_query_mob != mob)
|
|
return -EINVAL;
|
|
|
|
mob->dx_query_ctx = ctx_res;
|
|
|
|
if (!uctx->dx_query_mob)
|
|
uctx->dx_query_mob = vmw_dmabuf_reference(mob);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* vmw_context_get_dx_query_mob - Returns non-counted reference to DX query mob
|
|
*
|
|
* @ctx_res: The context resource
|
|
*/
|
|
struct vmw_dma_buffer *
|
|
vmw_context_get_dx_query_mob(struct vmw_resource *ctx_res)
|
|
{
|
|
struct vmw_user_context *uctx =
|
|
container_of(ctx_res, struct vmw_user_context, res);
|
|
|
|
return uctx->dx_query_mob;
|
|
}
|