ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/marvell/linux/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
new file mode 100644
index 0000000..8db3b3d
--- /dev/null
+++ b/marvell/linux/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -0,0 +1,4065 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/**************************************************************************
+ *
+ * Copyright 2009 - 2015 VMware, Inc., Palo Alto, CA., USA
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+#include <linux/sync_file.h>
+
+#include "vmwgfx_drv.h"
+#include "vmwgfx_reg.h"
+#include <drm/ttm/ttm_bo_api.h>
+#include <drm/ttm/ttm_placement.h>
+#include "vmwgfx_so.h"
+#include "vmwgfx_binding.h"
+
+#define VMW_RES_HT_ORDER 12
+
+/*
+ * Helper macro to get dx_ctx_node if available otherwise print an error
+ * message. This is for use in command verifier function where if dx_ctx_node
+ * is not set then command is invalid.
+ */
+#define VMW_GET_CTX_NODE(__sw_context) \
+({ \
+ __sw_context->dx_ctx_node ? __sw_context->dx_ctx_node : ({ \
+ VMW_DEBUG_USER("SM context is not set at %s\n", __func__); \
+ __sw_context->dx_ctx_node; \
+ }); \
+})
+
+#define VMW_DECLARE_CMD_VAR(__var, __type) \
+ struct { \
+ SVGA3dCmdHeader header; \
+ __type body; \
+ } __var
+
+/**
+ * struct vmw_relocation - Buffer object relocation
+ *
+ * @head: List head for the command submission context's relocation list
+ * @vbo: Non ref-counted pointer to buffer object
+ * @mob_loc: Pointer to location for mob id to be modified
+ * @location: Pointer to location for guest pointer to be modified
+ */
+struct vmw_relocation {
+ struct list_head head;
+ struct vmw_buffer_object *vbo;
+ union {
+ SVGAMobId *mob_loc;
+ SVGAGuestPtr *location;
+ };
+};
+
+/**
+ * enum vmw_resource_relocation_type - Relocation type for resources
+ *
+ * @vmw_res_rel_normal: Traditional relocation. The resource id in the
+ * command stream is replaced with the actual id after validation.
+ * @vmw_res_rel_nop: NOP relocation. The command is unconditionally replaced
+ * with a NOP.
+ * @vmw_res_rel_cond_nop: Conditional NOP relocation. If the resource id after
+ * validation is -1, the command is replaced with a NOP. Otherwise no action.
+ */
+enum vmw_resource_relocation_type {
+ vmw_res_rel_normal,
+ vmw_res_rel_nop,
+ vmw_res_rel_cond_nop,
+ vmw_res_rel_max
+};
+
+/**
+ * struct vmw_resource_relocation - Relocation info for resources
+ *
+ * @head: List head for the software context's relocation list.
+ * @res: Non-ref-counted pointer to the resource.
+ * @offset: Offset of single byte entries into the command buffer where the id
+ * that needs fixup is located.
+ * @rel_type: Type of relocation.
+ */
+struct vmw_resource_relocation {
+ struct list_head head;
+ const struct vmw_resource *res;
+ u32 offset:29;
+ enum vmw_resource_relocation_type rel_type:3;
+};
+
+/**
+ * struct vmw_ctx_validation_info - Extra validation metadata for contexts
+ *
+ * @head: List head of context list
+ * @ctx: The context resource
+ * @cur: The context's persistent binding state
+ * @staged: The binding state changes of this command buffer
+ */
+struct vmw_ctx_validation_info {
+ struct list_head head;
+ struct vmw_resource *ctx;
+ struct vmw_ctx_binding_state *cur;
+ struct vmw_ctx_binding_state *staged;
+};
+
+/**
+ * struct vmw_cmd_entry - Describe a command for the verifier
+ *
+ * @user_allow: Whether allowed from the execbuf ioctl.
+ * @gb_disable: Whether disabled if guest-backed objects are available.
+ * @gb_enable: Whether enabled iff guest-backed objects are available.
+ */
+struct vmw_cmd_entry {
+ int (*func) (struct vmw_private *, struct vmw_sw_context *,
+ SVGA3dCmdHeader *);
+ bool user_allow;
+ bool gb_disable;
+ bool gb_enable;
+ const char *cmd_name;
+};
+
+#define VMW_CMD_DEF(_cmd, _func, _user_allow, _gb_disable, _gb_enable) \
+ [(_cmd) - SVGA_3D_CMD_BASE] = {(_func), (_user_allow),\
+ (_gb_disable), (_gb_enable), #_cmd}
+
+static int vmw_resource_context_res_add(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ struct vmw_resource *ctx);
+static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGAMobId *id,
+ struct vmw_buffer_object **vmw_bo_p);
+/**
+ * vmw_ptr_diff - Compute the offset from a to b in bytes
+ *
+ * @a: A starting pointer.
+ * @b: A pointer offset in the same address space.
+ *
+ * Returns: The offset in bytes between the two pointers.
+ */
+static size_t vmw_ptr_diff(void *a, void *b)
+{
+ return (unsigned long) b - (unsigned long) a;
+}
+
+/**
+ * vmw_execbuf_bindings_commit - Commit modified binding state
+ *
+ * @sw_context: The command submission context
+ * @backoff: Whether this is part of the error path and binding state changes
+ * should be ignored
+ */
+static void vmw_execbuf_bindings_commit(struct vmw_sw_context *sw_context,
+ bool backoff)
+{
+ struct vmw_ctx_validation_info *entry;
+
+ list_for_each_entry(entry, &sw_context->ctx_list, head) {
+ if (!backoff)
+ vmw_binding_state_commit(entry->cur, entry->staged);
+
+ if (entry->staged != sw_context->staged_bindings)
+ vmw_binding_state_free(entry->staged);
+ else
+ sw_context->staged_bindings_inuse = false;
+ }
+
+ /* List entries are freed with the validation context */
+ INIT_LIST_HEAD(&sw_context->ctx_list);
+}
+
+/**
+ * vmw_bind_dx_query_mob - Bind the DX query MOB if referenced
+ *
+ * @sw_context: The command submission context
+ */
+static void vmw_bind_dx_query_mob(struct vmw_sw_context *sw_context)
+{
+ if (sw_context->dx_query_mob)
+ vmw_context_bind_dx_query(sw_context->dx_query_ctx,
+ sw_context->dx_query_mob);
+}
+
+/**
+ * vmw_cmd_ctx_first_setup - Perform the setup needed when a context is added to
+ * the validate list.
+ *
+ * @dev_priv: Pointer to the device private:
+ * @sw_context: The command submission context
+ * @node: The validation node holding the context resource metadata
+ */
+static int vmw_cmd_ctx_first_setup(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ struct vmw_resource *res,
+ struct vmw_ctx_validation_info *node)
+{
+ int ret;
+
+ ret = vmw_resource_context_res_add(dev_priv, sw_context, res);
+ if (unlikely(ret != 0))
+ goto out_err;
+
+ if (!sw_context->staged_bindings) {
+ sw_context->staged_bindings = vmw_binding_state_alloc(dev_priv);
+ if (IS_ERR(sw_context->staged_bindings)) {
+ ret = PTR_ERR(sw_context->staged_bindings);
+ sw_context->staged_bindings = NULL;
+ goto out_err;
+ }
+ }
+
+ if (sw_context->staged_bindings_inuse) {
+ node->staged = vmw_binding_state_alloc(dev_priv);
+ if (IS_ERR(node->staged)) {
+ ret = PTR_ERR(node->staged);
+ node->staged = NULL;
+ goto out_err;
+ }
+ } else {
+ node->staged = sw_context->staged_bindings;
+ sw_context->staged_bindings_inuse = true;
+ }
+
+ node->ctx = res;
+ node->cur = vmw_context_binding_state(res);
+ list_add_tail(&node->head, &sw_context->ctx_list);
+
+ return 0;
+
+out_err:
+ return ret;
+}
+
+/**
+ * vmw_execbuf_res_size - calculate extra size fore the resource validation node
+ *
+ * @dev_priv: Pointer to the device private struct.
+ * @res_type: The resource type.
+ *
+ * Guest-backed contexts and DX contexts require extra size to store execbuf
+ * private information in the validation node. Typically the binding manager
+ * associated data structures.
+ *
+ * Returns: The extra size requirement based on resource type.
+ */
+static unsigned int vmw_execbuf_res_size(struct vmw_private *dev_priv,
+ enum vmw_res_type res_type)
+{
+ return (res_type == vmw_res_dx_context ||
+ (res_type == vmw_res_context && dev_priv->has_mob)) ?
+ sizeof(struct vmw_ctx_validation_info) : 0;
+}
+
+/**
+ * vmw_execbuf_rcache_update - Update a resource-node cache entry
+ *
+ * @rcache: Pointer to the entry to update.
+ * @res: Pointer to the resource.
+ * @private: Pointer to the execbuf-private space in the resource validation
+ * node.
+ */
+static void vmw_execbuf_rcache_update(struct vmw_res_cache_entry *rcache,
+ struct vmw_resource *res,
+ void *private)
+{
+ rcache->res = res;
+ rcache->private = private;
+ rcache->valid = 1;
+ rcache->valid_handle = 0;
+}
+
+/**
+ * vmw_execbuf_res_noref_val_add - Add a resource described by an unreferenced
+ * rcu-protected pointer to the validation list.
+ *
+ * @sw_context: Pointer to the software context.
+ * @res: Unreferenced rcu-protected pointer to the resource.
+ * @dirty: Whether to change dirty status.
+ *
+ * Returns: 0 on success. Negative error code on failure. Typical error codes
+ * are %-EINVAL on inconsistency and %-ESRCH if the resource was doomed.
+ */
+static int vmw_execbuf_res_noref_val_add(struct vmw_sw_context *sw_context,
+ struct vmw_resource *res,
+ u32 dirty)
+{
+ struct vmw_private *dev_priv = res->dev_priv;
+ int ret;
+ enum vmw_res_type res_type = vmw_res_type(res);
+ struct vmw_res_cache_entry *rcache;
+ struct vmw_ctx_validation_info *ctx_info;
+ bool first_usage;
+ unsigned int priv_size;
+
+ rcache = &sw_context->res_cache[res_type];
+ if (likely(rcache->valid && rcache->res == res)) {
+ if (dirty)
+ vmw_validation_res_set_dirty(sw_context->ctx,
+ rcache->private, dirty);
+ vmw_user_resource_noref_release();
+ return 0;
+ }
+
+ priv_size = vmw_execbuf_res_size(dev_priv, res_type);
+ ret = vmw_validation_add_resource(sw_context->ctx, res, priv_size,
+ dirty, (void **)&ctx_info,
+ &first_usage);
+ vmw_user_resource_noref_release();
+ if (ret)
+ return ret;
+
+ if (priv_size && first_usage) {
+ ret = vmw_cmd_ctx_first_setup(dev_priv, sw_context, res,
+ ctx_info);
+ if (ret) {
+ VMW_DEBUG_USER("Failed first usage context setup.\n");
+ return ret;
+ }
+ }
+
+ vmw_execbuf_rcache_update(rcache, res, ctx_info);
+ return 0;
+}
+
+/**
+ * vmw_execbuf_res_noctx_val_add - Add a non-context resource to the resource
+ * validation list if it's not already on it
+ *
+ * @sw_context: Pointer to the software context.
+ * @res: Pointer to the resource.
+ * @dirty: Whether to change dirty status.
+ *
+ * Returns: Zero on success. Negative error code on failure.
+ */
+static int vmw_execbuf_res_noctx_val_add(struct vmw_sw_context *sw_context,
+ struct vmw_resource *res,
+ u32 dirty)
+{
+ struct vmw_res_cache_entry *rcache;
+ enum vmw_res_type res_type = vmw_res_type(res);
+ void *ptr;
+ int ret;
+
+ rcache = &sw_context->res_cache[res_type];
+ if (likely(rcache->valid && rcache->res == res)) {
+ if (dirty)
+ vmw_validation_res_set_dirty(sw_context->ctx,
+ rcache->private, dirty);
+ return 0;
+ }
+
+ ret = vmw_validation_add_resource(sw_context->ctx, res, 0, dirty,
+ &ptr, NULL);
+ if (ret)
+ return ret;
+
+ vmw_execbuf_rcache_update(rcache, res, ptr);
+
+ return 0;
+}
+
+/**
+ * vmw_view_res_val_add - Add a view and the surface it's pointing to to the
+ * validation list
+ *
+ * @sw_context: The software context holding the validation list.
+ * @view: Pointer to the view resource.
+ *
+ * Returns 0 if success, negative error code otherwise.
+ */
+static int vmw_view_res_val_add(struct vmw_sw_context *sw_context,
+ struct vmw_resource *view)
+{
+ int ret;
+
+ /*
+ * First add the resource the view is pointing to, otherwise it may be
+ * swapped out when the view is validated.
+ */
+ ret = vmw_execbuf_res_noctx_val_add(sw_context, vmw_view_srf(view),
+ vmw_view_dirtying(view));
+ if (ret)
+ return ret;
+
+ return vmw_execbuf_res_noctx_val_add(sw_context, view,
+ VMW_RES_DIRTY_NONE);
+}
+
+/**
+ * vmw_view_id_val_add - Look up a view and add it and the surface it's pointing
+ * to to the validation list.
+ *
+ * @sw_context: The software context holding the validation list.
+ * @view_type: The view type to look up.
+ * @id: view id of the view.
+ *
+ * The view is represented by a view id and the DX context it's created on, or
+ * scheduled for creation on. If there is no DX context set, the function will
+ * return an -EINVAL error pointer.
+ *
+ * Returns: Unreferenced pointer to the resource on success, negative error
+ * pointer on failure.
+ */
+static struct vmw_resource *
+vmw_view_id_val_add(struct vmw_sw_context *sw_context,
+ enum vmw_view_type view_type, u32 id)
+{
+ struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
+ struct vmw_resource *view;
+ int ret;
+
+ if (!ctx_node)
+ return ERR_PTR(-EINVAL);
+
+ view = vmw_view_lookup(sw_context->man, view_type, id);
+ if (IS_ERR(view))
+ return view;
+
+ ret = vmw_view_res_val_add(sw_context, view);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return view;
+}
+
+/**
+ * vmw_resource_context_res_add - Put resources previously bound to a context on
+ * the validation list
+ *
+ * @dev_priv: Pointer to a device private structure
+ * @sw_context: Pointer to a software context used for this command submission
+ * @ctx: Pointer to the context resource
+ *
+ * This function puts all resources that were previously bound to @ctx on the
+ * resource validation list. This is part of the context state reemission
+ */
+static int vmw_resource_context_res_add(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ struct vmw_resource *ctx)
+{
+ struct list_head *binding_list;
+ struct vmw_ctx_bindinfo *entry;
+ int ret = 0;
+ struct vmw_resource *res;
+ u32 i;
+
+ /* Add all cotables to the validation list. */
+ if (dev_priv->has_dx && vmw_res_type(ctx) == vmw_res_dx_context) {
+ for (i = 0; i < SVGA_COTABLE_DX10_MAX; ++i) {
+ res = vmw_context_cotable(ctx, i);
+ if (IS_ERR(res))
+ continue;
+
+ ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
+ VMW_RES_DIRTY_SET);
+ if (unlikely(ret != 0))
+ return ret;
+ }
+ }
+
+ /* Add all resources bound to the context to the validation list */
+ mutex_lock(&dev_priv->binding_mutex);
+ binding_list = vmw_context_binding_list(ctx);
+
+ list_for_each_entry(entry, binding_list, ctx_list) {
+ if (vmw_res_type(entry->res) == vmw_res_view)
+ ret = vmw_view_res_val_add(sw_context, entry->res);
+ else
+ ret = vmw_execbuf_res_noctx_val_add
+ (sw_context, entry->res,
+ vmw_binding_dirtying(entry->bt));
+ if (unlikely(ret != 0))
+ break;
+ }
+
+ if (dev_priv->has_dx && vmw_res_type(ctx) == vmw_res_dx_context) {
+ struct vmw_buffer_object *dx_query_mob;
+
+ dx_query_mob = vmw_context_get_dx_query_mob(ctx);
+ if (dx_query_mob)
+ ret = vmw_validation_add_bo(sw_context->ctx,
+ dx_query_mob, true, false);
+ }
+
+ mutex_unlock(&dev_priv->binding_mutex);
+ return ret;
+}
+
+/**
+ * vmw_resource_relocation_add - Add a relocation to the relocation list
+ *
+ * @list: Pointer to head of relocation list.
+ * @res: The resource.
+ * @offset: Offset into the command buffer currently being parsed where the id
+ * that needs fixup is located. Granularity is one byte.
+ * @rel_type: Relocation type.
+ */
+static int vmw_resource_relocation_add(struct vmw_sw_context *sw_context,
+ const struct vmw_resource *res,
+ unsigned long offset,
+ enum vmw_resource_relocation_type
+ rel_type)
+{
+ struct vmw_resource_relocation *rel;
+
+ rel = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*rel));
+ if (unlikely(!rel)) {
+ VMW_DEBUG_USER("Failed to allocate a resource relocation.\n");
+ return -ENOMEM;
+ }
+
+ rel->res = res;
+ rel->offset = offset;
+ rel->rel_type = rel_type;
+ list_add_tail(&rel->head, &sw_context->res_relocations);
+
+ return 0;
+}
+
+/**
+ * vmw_resource_relocations_free - Free all relocations on a list
+ *
+ * @list: Pointer to the head of the relocation list
+ */
+static void vmw_resource_relocations_free(struct list_head *list)
+{
+ /* Memory is validation context memory, so no need to free it */
+ INIT_LIST_HEAD(list);
+}
+
+/**
+ * vmw_resource_relocations_apply - Apply all relocations on a list
+ *
+ * @cb: Pointer to the start of the command buffer bein patch. This need not be
+ * the same buffer as the one being parsed when the relocation list was built,
+ * but the contents must be the same modulo the resource ids.
+ * @list: Pointer to the head of the relocation list.
+ */
+static void vmw_resource_relocations_apply(uint32_t *cb,
+ struct list_head *list)
+{
+ struct vmw_resource_relocation *rel;
+
+ /* Validate the struct vmw_resource_relocation member size */
+ BUILD_BUG_ON(SVGA_CB_MAX_SIZE >= (1 << 29));
+ BUILD_BUG_ON(vmw_res_rel_max >= (1 << 3));
+
+ list_for_each_entry(rel, list, head) {
+ u32 *addr = (u32 *)((unsigned long) cb + rel->offset);
+ switch (rel->rel_type) {
+ case vmw_res_rel_normal:
+ *addr = rel->res->id;
+ break;
+ case vmw_res_rel_nop:
+ *addr = SVGA_3D_CMD_NOP;
+ break;
+ default:
+ if (rel->res->id == -1)
+ *addr = SVGA_3D_CMD_NOP;
+ break;
+ }
+ }
+}
+
+static int vmw_cmd_invalid(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ return -EINVAL;
+}
+
+static int vmw_cmd_ok(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ return 0;
+}
+
+/**
+ * vmw_resources_reserve - Reserve all resources on the sw_context's resource
+ * list.
+ *
+ * @sw_context: Pointer to the software context.
+ *
+ * Note that since vmware's command submission currently is protected by the
+ * cmdbuf mutex, no fancy deadlock avoidance is required for resources, since
+ * only a single thread at once will attempt this.
+ */
+static int vmw_resources_reserve(struct vmw_sw_context *sw_context)
+{
+ int ret;
+
+ ret = vmw_validation_res_reserve(sw_context->ctx, true);
+ if (ret)
+ return ret;
+
+ if (sw_context->dx_query_mob) {
+ struct vmw_buffer_object *expected_dx_query_mob;
+
+ expected_dx_query_mob =
+ vmw_context_get_dx_query_mob(sw_context->dx_query_ctx);
+ if (expected_dx_query_mob &&
+ expected_dx_query_mob != sw_context->dx_query_mob) {
+ ret = -EINVAL;
+ }
+ }
+
+ return ret;
+}
+
+/**
+ * vmw_cmd_res_check - Check that a resource is present and if so, put it on the
+ * resource validate list unless it's already there.
+ *
+ * @dev_priv: Pointer to a device private structure.
+ * @sw_context: Pointer to the software context.
+ * @res_type: Resource type.
+ * @dirty: Whether to change dirty status.
+ * @converter: User-space visisble type specific information.
+ * @id_loc: Pointer to the location in the command buffer currently being parsed
+ * from where the user-space resource id handle is located.
+ * @p_val: Pointer to pointer to resource validalidation node. Populated on
+ * exit.
+ */
+static int
+vmw_cmd_res_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ enum vmw_res_type res_type,
+ u32 dirty,
+ const struct vmw_user_resource_conv *converter,
+ uint32_t *id_loc,
+ struct vmw_resource **p_res)
+{
+ struct vmw_res_cache_entry *rcache = &sw_context->res_cache[res_type];
+ struct vmw_resource *res;
+ int ret;
+
+ if (p_res)
+ *p_res = NULL;
+
+ if (*id_loc == SVGA3D_INVALID_ID) {
+ if (res_type == vmw_res_context) {
+ VMW_DEBUG_USER("Illegal context invalid id.\n");
+ return -EINVAL;
+ }
+ return 0;
+ }
+
+ if (likely(rcache->valid_handle && *id_loc == rcache->handle)) {
+ res = rcache->res;
+ if (dirty)
+ vmw_validation_res_set_dirty(sw_context->ctx,
+ rcache->private, dirty);
+ } else {
+ unsigned int size = vmw_execbuf_res_size(dev_priv, res_type);
+
+ ret = vmw_validation_preload_res(sw_context->ctx, size);
+ if (ret)
+ return ret;
+
+ res = vmw_user_resource_noref_lookup_handle
+ (dev_priv, sw_context->fp->tfile, *id_loc, converter);
+ if (IS_ERR(res)) {
+ VMW_DEBUG_USER("Could not find/use resource 0x%08x.\n",
+ (unsigned int) *id_loc);
+ return PTR_ERR(res);
+ }
+
+ ret = vmw_execbuf_res_noref_val_add(sw_context, res, dirty);
+ if (unlikely(ret != 0))
+ return ret;
+
+ if (rcache->valid && rcache->res == res) {
+ rcache->valid_handle = true;
+ rcache->handle = *id_loc;
+ }
+ }
+
+ ret = vmw_resource_relocation_add(sw_context, res,
+ vmw_ptr_diff(sw_context->buf_start,
+ id_loc),
+ vmw_res_rel_normal);
+ if (p_res)
+ *p_res = res;
+
+ return 0;
+}
+
+/**
+ * vmw_rebind_dx_query - Rebind DX query associated with the context
+ *
+ * @ctx_res: context the query belongs to
+ *
+ * This function assumes binding_mutex is held.
+ */
+static int vmw_rebind_all_dx_query(struct vmw_resource *ctx_res)
+{
+ struct vmw_private *dev_priv = ctx_res->dev_priv;
+ struct vmw_buffer_object *dx_query_mob;
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindAllQuery);
+
+ dx_query_mob = vmw_context_get_dx_query_mob(ctx_res);
+
+ if (!dx_query_mob || dx_query_mob->dx_query_ctx)
+ return 0;
+
+ cmd = VMW_FIFO_RESERVE_DX(dev_priv, sizeof(*cmd), ctx_res->id);
+ if (cmd == NULL)
+ return -ENOMEM;
+
+ cmd->header.id = SVGA_3D_CMD_DX_BIND_ALL_QUERY;
+ cmd->header.size = sizeof(cmd->body);
+ cmd->body.cid = ctx_res->id;
+ cmd->body.mobid = dx_query_mob->base.mem.start;
+ vmw_fifo_commit(dev_priv, sizeof(*cmd));
+
+ vmw_context_bind_dx_query(ctx_res, dx_query_mob);
+
+ return 0;
+}
+
+/**
+ * vmw_rebind_contexts - Rebind all resources previously bound to referenced
+ * contexts.
+ *
+ * @sw_context: Pointer to the software context.
+ *
+ * Rebind context binding points that have been scrubbed because of eviction.
+ */
+static int vmw_rebind_contexts(struct vmw_sw_context *sw_context)
+{
+ struct vmw_ctx_validation_info *val;
+ int ret;
+
+ list_for_each_entry(val, &sw_context->ctx_list, head) {
+ ret = vmw_binding_rebind_all(val->cur);
+ if (unlikely(ret != 0)) {
+ if (ret != -ERESTARTSYS)
+ VMW_DEBUG_USER("Failed to rebind context.\n");
+ return ret;
+ }
+
+ ret = vmw_rebind_all_dx_query(val->ctx);
+ if (ret != 0) {
+ VMW_DEBUG_USER("Failed to rebind queries.\n");
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * vmw_view_bindings_add - Add an array of view bindings to a context binding
+ * state tracker.
+ *
+ * @sw_context: The execbuf state used for this command.
+ * @view_type: View type for the bindings.
+ * @binding_type: Binding type for the bindings.
+ * @shader_slot: The shader slot to user for the bindings.
+ * @view_ids: Array of view ids to be bound.
+ * @num_views: Number of view ids in @view_ids.
+ * @first_slot: The binding slot to be used for the first view id in @view_ids.
+ */
+static int vmw_view_bindings_add(struct vmw_sw_context *sw_context,
+ enum vmw_view_type view_type,
+ enum vmw_ctx_binding_type binding_type,
+ uint32 shader_slot,
+ uint32 view_ids[], u32 num_views,
+ u32 first_slot)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ u32 i;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ for (i = 0; i < num_views; ++i) {
+ struct vmw_ctx_bindinfo_view binding;
+ struct vmw_resource *view = NULL;
+
+ if (view_ids[i] != SVGA3D_INVALID_ID) {
+ view = vmw_view_id_val_add(sw_context, view_type,
+ view_ids[i]);
+ if (IS_ERR(view)) {
+ VMW_DEBUG_USER("View not found.\n");
+ return PTR_ERR(view);
+ }
+ }
+ binding.bi.ctx = ctx_node->ctx;
+ binding.bi.res = view;
+ binding.bi.bt = binding_type;
+ binding.shader_slot = shader_slot;
+ binding.slot = first_slot + i;
+ vmw_binding_add(ctx_node->staged, &binding.bi,
+ shader_slot, binding.slot);
+ }
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_cid_check - Check a command header for valid context information.
+ *
+ * @dev_priv: Pointer to a device private structure.
+ * @sw_context: Pointer to the software context.
+ * @header: A command header with an embedded user-space context handle.
+ *
+ * Convenience function: Call vmw_cmd_res_check with the user-space context
+ * handle embedded in @header.
+ */
+static int vmw_cmd_cid_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, uint32_t) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET, user_context_converter,
+ &cmd->body, NULL);
+}
+
+/**
+ * vmw_execbuf_info_from_res - Get the private validation metadata for a
+ * recently validated resource
+ *
+ * @sw_context: Pointer to the command submission context
+ * @res: The resource
+ *
+ * The resource pointed to by @res needs to be present in the command submission
+ * context's resource cache and hence the last resource of that type to be
+ * processed by the validation code.
+ *
+ * Return: a pointer to the private metadata of the resource, or NULL if it
+ * wasn't found
+ */
+static struct vmw_ctx_validation_info *
+vmw_execbuf_info_from_res(struct vmw_sw_context *sw_context,
+ struct vmw_resource *res)
+{
+ struct vmw_res_cache_entry *rcache =
+ &sw_context->res_cache[vmw_res_type(res)];
+
+ if (rcache->valid && rcache->res == res)
+ return rcache->private;
+
+ WARN_ON_ONCE(true);
+ return NULL;
+}
+
+static int vmw_cmd_set_render_target_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetRenderTarget);
+ struct vmw_resource *ctx;
+ struct vmw_resource *res;
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ if (cmd->body.type >= SVGA3D_RT_MAX) {
+ VMW_DEBUG_USER("Illegal render target type %u.\n",
+ (unsigned int) cmd->body.type);
+ return -EINVAL;
+ }
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET, user_context_converter,
+ &cmd->body.cid, &ctx);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_SET, user_surface_converter,
+ &cmd->body.target.sid, &res);
+ if (unlikely(ret))
+ return ret;
+
+ if (dev_priv->has_mob) {
+ struct vmw_ctx_bindinfo_view binding;
+ struct vmw_ctx_validation_info *node;
+
+ node = vmw_execbuf_info_from_res(sw_context, ctx);
+ if (!node)
+ return -EINVAL;
+
+ binding.bi.ctx = ctx;
+ binding.bi.res = res;
+ binding.bi.bt = vmw_ctx_binding_rt;
+ binding.slot = cmd->body.type;
+ vmw_binding_add(node->staged, &binding.bi, 0, binding.slot);
+ }
+
+ return 0;
+}
+
+static int vmw_cmd_surface_copy_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceCopy);
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.src.sid, NULL);
+ if (ret)
+ return ret;
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_SET, user_surface_converter,
+ &cmd->body.dest.sid, NULL);
+}
+
+static int vmw_cmd_buffer_copy_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBufferCopy);
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.src, NULL);
+ if (ret != 0)
+ return ret;
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_SET, user_surface_converter,
+ &cmd->body.dest, NULL);
+}
+
+static int vmw_cmd_pred_copy_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXPredCopyRegion);
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.srcSid, NULL);
+ if (ret != 0)
+ return ret;
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_SET, user_surface_converter,
+ &cmd->body.dstSid, NULL);
+}
+
+static int vmw_cmd_stretch_blt_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceStretchBlt);
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.src.sid, NULL);
+ if (unlikely(ret != 0))
+ return ret;
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_SET, user_surface_converter,
+ &cmd->body.dest.sid, NULL);
+}
+
+static int vmw_cmd_blt_surf_screen_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBlitSurfaceToScreen) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.srcImage.sid, NULL);
+}
+
+static int vmw_cmd_present_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdPresent) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.sid, NULL);
+}
+
+/**
+ * vmw_query_bo_switch_prepare - Prepare to switch pinned buffer for queries.
+ *
+ * @dev_priv: The device private structure.
+ * @new_query_bo: The new buffer holding query results.
+ * @sw_context: The software context used for this command submission.
+ *
+ * This function checks whether @new_query_bo is suitable for holding query
+ * results, and if another buffer currently is pinned for query results. If so,
+ * the function prepares the state of @sw_context for switching pinned buffers
+ * after successful submission of the current command batch.
+ */
+static int vmw_query_bo_switch_prepare(struct vmw_private *dev_priv,
+ struct vmw_buffer_object *new_query_bo,
+ struct vmw_sw_context *sw_context)
+{
+ struct vmw_res_cache_entry *ctx_entry =
+ &sw_context->res_cache[vmw_res_context];
+ int ret;
+
+ BUG_ON(!ctx_entry->valid);
+ sw_context->last_query_ctx = ctx_entry->res;
+
+ if (unlikely(new_query_bo != sw_context->cur_query_bo)) {
+
+ if (unlikely(new_query_bo->base.num_pages > 4)) {
+ VMW_DEBUG_USER("Query buffer too large.\n");
+ return -EINVAL;
+ }
+
+ if (unlikely(sw_context->cur_query_bo != NULL)) {
+ sw_context->needs_post_query_barrier = true;
+ ret = vmw_validation_add_bo(sw_context->ctx,
+ sw_context->cur_query_bo,
+ dev_priv->has_mob, false);
+ if (unlikely(ret != 0))
+ return ret;
+ }
+ sw_context->cur_query_bo = new_query_bo;
+
+ ret = vmw_validation_add_bo(sw_context->ctx,
+ dev_priv->dummy_query_bo,
+ dev_priv->has_mob, false);
+ if (unlikely(ret != 0))
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * vmw_query_bo_switch_commit - Finalize switching pinned query buffer
+ *
+ * @dev_priv: The device private structure.
+ * @sw_context: The software context used for this command submission batch.
+ *
+ * This function will check if we're switching query buffers, and will then,
+ * issue a dummy occlusion query wait used as a query barrier. When the fence
+ * object following that query wait has signaled, we are sure that all preceding
+ * queries have finished, and the old query buffer can be unpinned. However,
+ * since both the new query buffer and the old one are fenced with that fence,
+ * we can do an asynchronus unpin now, and be sure that the old query buffer
+ * won't be moved until the fence has signaled.
+ *
+ * As mentioned above, both the new - and old query buffers need to be fenced
+ * using a sequence emitted *after* calling this function.
+ */
+static void vmw_query_bo_switch_commit(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context)
+{
+ /*
+ * The validate list should still hold references to all
+ * contexts here.
+ */
+ if (sw_context->needs_post_query_barrier) {
+ struct vmw_res_cache_entry *ctx_entry =
+ &sw_context->res_cache[vmw_res_context];
+ struct vmw_resource *ctx;
+ int ret;
+
+ BUG_ON(!ctx_entry->valid);
+ ctx = ctx_entry->res;
+
+ ret = vmw_fifo_emit_dummy_query(dev_priv, ctx->id);
+
+ if (unlikely(ret != 0))
+ VMW_DEBUG_USER("Out of fifo space for dummy query.\n");
+ }
+
+ if (dev_priv->pinned_bo != sw_context->cur_query_bo) {
+ if (dev_priv->pinned_bo) {
+ vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
+ vmw_bo_unreference(&dev_priv->pinned_bo);
+ }
+
+ if (!sw_context->needs_post_query_barrier) {
+ vmw_bo_pin_reserved(sw_context->cur_query_bo, true);
+
+ /*
+ * We pin also the dummy_query_bo buffer so that we
+ * don't need to validate it when emitting dummy queries
+ * in context destroy paths.
+ */
+ if (!dev_priv->dummy_query_bo_pinned) {
+ vmw_bo_pin_reserved(dev_priv->dummy_query_bo,
+ true);
+ dev_priv->dummy_query_bo_pinned = true;
+ }
+
+ BUG_ON(sw_context->last_query_ctx == NULL);
+ dev_priv->query_cid = sw_context->last_query_ctx->id;
+ dev_priv->query_cid_valid = true;
+ dev_priv->pinned_bo =
+ vmw_bo_reference(sw_context->cur_query_bo);
+ }
+ }
+}
+
+/**
+ * vmw_translate_mob_pointer - Prepare to translate a user-space buffer handle
+ * to a MOB id.
+ *
+ * @dev_priv: Pointer to a device private structure.
+ * @sw_context: The software context used for this command batch validation.
+ * @id: Pointer to the user-space handle to be translated.
+ * @vmw_bo_p: Points to a location that, on successful return will carry a
+ * non-reference-counted pointer to the buffer object identified by the
+ * user-space handle in @id.
+ *
+ * This function saves information needed to translate a user-space buffer
+ * handle to a MOB id. The translation does not take place immediately, but
+ * during a call to vmw_apply_relocations().
+ *
+ * This function builds a relocation list and a list of buffers to validate. The
+ * former needs to be freed using either vmw_apply_relocations() or
+ * vmw_free_relocations(). The latter needs to be freed using
+ * vmw_clear_validations.
+ */
+static int vmw_translate_mob_ptr(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGAMobId *id,
+ struct vmw_buffer_object **vmw_bo_p)
+{
+ struct vmw_buffer_object *vmw_bo;
+ uint32_t handle = *id;
+ struct vmw_relocation *reloc;
+ int ret;
+
+ vmw_validation_preload_bo(sw_context->ctx);
+ vmw_bo = vmw_user_bo_noref_lookup(sw_context->fp->tfile, handle);
+ if (IS_ERR(vmw_bo)) {
+ VMW_DEBUG_USER("Could not find or use MOB buffer.\n");
+ return PTR_ERR(vmw_bo);
+ }
+
+ ret = vmw_validation_add_bo(sw_context->ctx, vmw_bo, true, false);
+ vmw_user_bo_noref_release();
+ if (unlikely(ret != 0))
+ return ret;
+
+ reloc = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*reloc));
+ if (!reloc)
+ return -ENOMEM;
+
+ reloc->mob_loc = id;
+ reloc->vbo = vmw_bo;
+
+ *vmw_bo_p = vmw_bo;
+ list_add_tail(&reloc->head, &sw_context->bo_relocations);
+
+ return 0;
+}
+
+/**
+ * vmw_translate_guest_pointer - Prepare to translate a user-space buffer handle
+ * to a valid SVGAGuestPtr
+ *
+ * @dev_priv: Pointer to a device private structure.
+ * @sw_context: The software context used for this command batch validation.
+ * @ptr: Pointer to the user-space handle to be translated.
+ * @vmw_bo_p: Points to a location that, on successful return will carry a
+ * non-reference-counted pointer to the DMA buffer identified by the user-space
+ * handle in @id.
+ *
+ * This function saves information needed to translate a user-space buffer
+ * handle to a valid SVGAGuestPtr. The translation does not take place
+ * immediately, but during a call to vmw_apply_relocations().
+ *
+ * This function builds a relocation list and a list of buffers to validate.
+ * The former needs to be freed using either vmw_apply_relocations() or
+ * vmw_free_relocations(). The latter needs to be freed using
+ * vmw_clear_validations.
+ */
+static int vmw_translate_guest_ptr(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGAGuestPtr *ptr,
+ struct vmw_buffer_object **vmw_bo_p)
+{
+ struct vmw_buffer_object *vmw_bo;
+ uint32_t handle = ptr->gmrId;
+ struct vmw_relocation *reloc;
+ int ret;
+
+ vmw_validation_preload_bo(sw_context->ctx);
+ vmw_bo = vmw_user_bo_noref_lookup(sw_context->fp->tfile, handle);
+ if (IS_ERR(vmw_bo)) {
+ VMW_DEBUG_USER("Could not find or use GMR region.\n");
+ return PTR_ERR(vmw_bo);
+ }
+
+ ret = vmw_validation_add_bo(sw_context->ctx, vmw_bo, false, false);
+ vmw_user_bo_noref_release();
+ if (unlikely(ret != 0))
+ return ret;
+
+ reloc = vmw_validation_mem_alloc(sw_context->ctx, sizeof(*reloc));
+ if (!reloc)
+ return -ENOMEM;
+
+ reloc->location = ptr;
+ reloc->vbo = vmw_bo;
+ *vmw_bo_p = vmw_bo;
+ list_add_tail(&reloc->head, &sw_context->bo_relocations);
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_dx_define_query - validate SVGA_3D_CMD_DX_DEFINE_QUERY command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context used for this command submission.
+ * @header: Pointer to the command header in the command stream.
+ *
+ * This function adds the new query into the query COTABLE
+ */
+static int vmw_cmd_dx_define_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDefineQuery);
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct vmw_resource *cotable_res;
+ int ret;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ if (cmd->body.type < SVGA3D_QUERYTYPE_MIN ||
+ cmd->body.type >= SVGA3D_QUERYTYPE_MAX)
+ return -EINVAL;
+
+ cotable_res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_DXQUERY);
+ ret = vmw_cotable_notify(cotable_res, cmd->body.queryId);
+
+ return ret;
+}
+
+/**
+ * vmw_cmd_dx_bind_query - validate SVGA_3D_CMD_DX_BIND_QUERY command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context used for this command submission.
+ * @header: Pointer to the command header in the command stream.
+ *
+ * The query bind operation will eventually associate the query ID with its
+ * backing MOB. In this function, we take the user mode MOB ID and use
+ * vmw_translate_mob_ptr() to translate it to its kernel mode equivalent.
+ */
+static int vmw_cmd_dx_bind_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindQuery);
+ struct vmw_buffer_object *vmw_bo;
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ /*
+ * Look up the buffer pointed to by q.mobid, put it on the relocation
+ * list so its kernel mode MOB ID can be filled in later
+ */
+ ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
+ &vmw_bo);
+
+ if (ret != 0)
+ return ret;
+
+ sw_context->dx_query_mob = vmw_bo;
+ sw_context->dx_query_ctx = sw_context->dx_ctx_node->ctx;
+ return 0;
+}
+
+/**
+ * vmw_cmd_begin_gb_query - validate SVGA_3D_CMD_BEGIN_GB_QUERY command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context used for this command submission.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_begin_gb_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBeginGBQuery) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET, user_context_converter,
+ &cmd->body.cid, NULL);
+}
+
+/**
+ * vmw_cmd_begin_query - validate SVGA_3D_CMD_BEGIN_QUERY command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context used for this command submission.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_begin_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBeginQuery) =
+ container_of(header, typeof(*cmd), header);
+
+ if (unlikely(dev_priv->has_mob)) {
+ VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdBeginGBQuery);
+
+ BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
+
+ gb_cmd.header.id = SVGA_3D_CMD_BEGIN_GB_QUERY;
+ gb_cmd.header.size = cmd->header.size;
+ gb_cmd.body.cid = cmd->body.cid;
+ gb_cmd.body.type = cmd->body.type;
+
+ memcpy(cmd, &gb_cmd, sizeof(*cmd));
+ return vmw_cmd_begin_gb_query(dev_priv, sw_context, header);
+ }
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET, user_context_converter,
+ &cmd->body.cid, NULL);
+}
+
+/**
+ * vmw_cmd_end_gb_query - validate SVGA_3D_CMD_END_GB_QUERY command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context used for this command submission.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_end_gb_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_buffer_object *vmw_bo;
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdEndGBQuery);
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
+ &vmw_bo);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_query_bo_switch_prepare(dev_priv, vmw_bo, sw_context);
+
+ return ret;
+}
+
+/**
+ * vmw_cmd_end_query - validate SVGA_3D_CMD_END_QUERY command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context used for this command submission.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_end_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_buffer_object *vmw_bo;
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdEndQuery);
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ if (dev_priv->has_mob) {
+ VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdEndGBQuery);
+
+ BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
+
+ gb_cmd.header.id = SVGA_3D_CMD_END_GB_QUERY;
+ gb_cmd.header.size = cmd->header.size;
+ gb_cmd.body.cid = cmd->body.cid;
+ gb_cmd.body.type = cmd->body.type;
+ gb_cmd.body.mobid = cmd->body.guestResult.gmrId;
+ gb_cmd.body.offset = cmd->body.guestResult.offset;
+
+ memcpy(cmd, &gb_cmd, sizeof(*cmd));
+ return vmw_cmd_end_gb_query(dev_priv, sw_context, header);
+ }
+
+ ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_translate_guest_ptr(dev_priv, sw_context,
+ &cmd->body.guestResult, &vmw_bo);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_query_bo_switch_prepare(dev_priv, vmw_bo, sw_context);
+
+ return ret;
+}
+
+/**
+ * vmw_cmd_wait_gb_query - validate SVGA_3D_CMD_WAIT_GB_QUERY command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context used for this command submission.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_wait_gb_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_buffer_object *vmw_bo;
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdWaitForGBQuery);
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_translate_mob_ptr(dev_priv, sw_context, &cmd->body.mobid,
+ &vmw_bo);
+ if (unlikely(ret != 0))
+ return ret;
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_wait_query - validate SVGA_3D_CMD_WAIT_QUERY command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context used for this command submission.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_wait_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_buffer_object *vmw_bo;
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdWaitForQuery);
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ if (dev_priv->has_mob) {
+ VMW_DECLARE_CMD_VAR(gb_cmd, SVGA3dCmdWaitForGBQuery);
+
+ BUG_ON(sizeof(gb_cmd) != sizeof(*cmd));
+
+ gb_cmd.header.id = SVGA_3D_CMD_WAIT_FOR_GB_QUERY;
+ gb_cmd.header.size = cmd->header.size;
+ gb_cmd.body.cid = cmd->body.cid;
+ gb_cmd.body.type = cmd->body.type;
+ gb_cmd.body.mobid = cmd->body.guestResult.gmrId;
+ gb_cmd.body.offset = cmd->body.guestResult.offset;
+
+ memcpy(cmd, &gb_cmd, sizeof(*cmd));
+ return vmw_cmd_wait_gb_query(dev_priv, sw_context, header);
+ }
+
+ ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_translate_guest_ptr(dev_priv, sw_context,
+ &cmd->body.guestResult, &vmw_bo);
+ if (unlikely(ret != 0))
+ return ret;
+
+ return 0;
+}
+
+static int vmw_cmd_dma(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_buffer_object *vmw_bo = NULL;
+ struct vmw_surface *srf = NULL;
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSurfaceDMA);
+ int ret;
+ SVGA3dCmdSurfaceDMASuffix *suffix;
+ uint32_t bo_size;
+ bool dirty;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ suffix = (SVGA3dCmdSurfaceDMASuffix *)((unsigned long) &cmd->body +
+ header->size - sizeof(*suffix));
+
+ /* Make sure device and verifier stays in sync. */
+ if (unlikely(suffix->suffixSize != sizeof(*suffix))) {
+ VMW_DEBUG_USER("Invalid DMA suffix size.\n");
+ return -EINVAL;
+ }
+
+ ret = vmw_translate_guest_ptr(dev_priv, sw_context,
+ &cmd->body.guest.ptr, &vmw_bo);
+ if (unlikely(ret != 0))
+ return ret;
+
+ /* Make sure DMA doesn't cross BO boundaries. */
+ bo_size = vmw_bo->base.num_pages * PAGE_SIZE;
+ if (unlikely(cmd->body.guest.ptr.offset > bo_size)) {
+ VMW_DEBUG_USER("Invalid DMA offset.\n");
+ return -EINVAL;
+ }
+
+ bo_size -= cmd->body.guest.ptr.offset;
+ if (unlikely(suffix->maximumOffset > bo_size))
+ suffix->maximumOffset = bo_size;
+
+ dirty = (cmd->body.transfer == SVGA3D_WRITE_HOST_VRAM) ?
+ VMW_RES_DIRTY_SET : 0;
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ dirty, user_surface_converter,
+ &cmd->body.host.sid, NULL);
+ if (unlikely(ret != 0)) {
+ if (unlikely(ret != -ERESTARTSYS))
+ VMW_DEBUG_USER("could not find surface for DMA.\n");
+ return ret;
+ }
+
+ srf = vmw_res_to_srf(sw_context->res_cache[vmw_res_surface].res);
+
+ vmw_kms_cursor_snoop(srf, sw_context->fp->tfile, &vmw_bo->base, header);
+
+ return 0;
+}
+
+static int vmw_cmd_draw(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDrawPrimitives);
+ SVGA3dVertexDecl *decl = (SVGA3dVertexDecl *)(
+ (unsigned long)header + sizeof(*cmd));
+ SVGA3dPrimitiveRange *range;
+ uint32_t i;
+ uint32_t maxnum;
+ int ret;
+
+ ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
+ if (unlikely(ret != 0))
+ return ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl);
+
+ if (unlikely(cmd->body.numVertexDecls > maxnum)) {
+ VMW_DEBUG_USER("Illegal number of vertex declarations.\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < cmd->body.numVertexDecls; ++i, ++decl) {
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE,
+ user_surface_converter,
+ &decl->array.surfaceId, NULL);
+ if (unlikely(ret != 0))
+ return ret;
+ }
+
+ maxnum = (header->size - sizeof(cmd->body) -
+ cmd->body.numVertexDecls * sizeof(*decl)) / sizeof(*range);
+ if (unlikely(cmd->body.numRanges > maxnum)) {
+ VMW_DEBUG_USER("Illegal number of index ranges.\n");
+ return -EINVAL;
+ }
+
+ range = (SVGA3dPrimitiveRange *) decl;
+ for (i = 0; i < cmd->body.numRanges; ++i, ++range) {
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE,
+ user_surface_converter,
+ &range->indexArray.surfaceId, NULL);
+ if (unlikely(ret != 0))
+ return ret;
+ }
+ return 0;
+}
+
+static int vmw_cmd_tex_state(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetTextureState);
+ SVGA3dTextureState *last_state = (SVGA3dTextureState *)
+ ((unsigned long) header + header->size + sizeof(*header));
+ SVGA3dTextureState *cur_state = (SVGA3dTextureState *)
+ ((unsigned long) header + sizeof(*cmd));
+ struct vmw_resource *ctx;
+ struct vmw_resource *res;
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET, user_context_converter,
+ &cmd->body.cid, &ctx);
+ if (unlikely(ret != 0))
+ return ret;
+
+ for (; cur_state < last_state; ++cur_state) {
+ if (likely(cur_state->name != SVGA3D_TS_BIND_TEXTURE))
+ continue;
+
+ if (cur_state->stage >= SVGA3D_NUM_TEXTURE_UNITS) {
+ VMW_DEBUG_USER("Illegal texture/sampler unit %u.\n",
+ (unsigned int) cur_state->stage);
+ return -EINVAL;
+ }
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE,
+ user_surface_converter,
+ &cur_state->value, &res);
+ if (unlikely(ret != 0))
+ return ret;
+
+ if (dev_priv->has_mob) {
+ struct vmw_ctx_bindinfo_tex binding;
+ struct vmw_ctx_validation_info *node;
+
+ node = vmw_execbuf_info_from_res(sw_context, ctx);
+ if (!node)
+ return -EINVAL;
+
+ binding.bi.ctx = ctx;
+ binding.bi.res = res;
+ binding.bi.bt = vmw_ctx_binding_tex;
+ binding.texture_stage = cur_state->stage;
+ vmw_binding_add(node->staged, &binding.bi, 0,
+ binding.texture_stage);
+ }
+ }
+
+ return 0;
+}
+
+static int vmw_cmd_check_define_gmrfb(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ void *buf)
+{
+ struct vmw_buffer_object *vmw_bo;
+
+ struct {
+ uint32_t header;
+ SVGAFifoCmdDefineGMRFB body;
+ } *cmd = buf;
+
+ return vmw_translate_guest_ptr(dev_priv, sw_context, &cmd->body.ptr,
+ &vmw_bo);
+}
+
+/**
+ * vmw_cmd_res_switch_backup - Utility function to handle backup buffer
+ * switching
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @val_node: The validation node representing the resource.
+ * @buf_id: Pointer to the user-space backup buffer handle in the command
+ * stream.
+ * @backup_offset: Offset of backup into MOB.
+ *
+ * This function prepares for registering a switch of backup buffers in the
+ * resource metadata just prior to unreserving. It's basically a wrapper around
+ * vmw_cmd_res_switch_backup with a different interface.
+ */
+static int vmw_cmd_res_switch_backup(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ struct vmw_resource *res, uint32_t *buf_id,
+ unsigned long backup_offset)
+{
+ struct vmw_buffer_object *vbo;
+ void *info;
+ int ret;
+
+ info = vmw_execbuf_info_from_res(sw_context, res);
+ if (!info)
+ return -EINVAL;
+
+ ret = vmw_translate_mob_ptr(dev_priv, sw_context, buf_id, &vbo);
+ if (ret)
+ return ret;
+
+ vmw_validation_res_switch_backup(sw_context->ctx, info, vbo,
+ backup_offset);
+ return 0;
+}
+
+/**
+ * vmw_cmd_switch_backup - Utility function to handle backup buffer switching
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @res_type: The resource type.
+ * @converter: Information about user-space binding for this resource type.
+ * @res_id: Pointer to the user-space resource handle in the command stream.
+ * @buf_id: Pointer to the user-space backup buffer handle in the command
+ * stream.
+ * @backup_offset: Offset of backup into MOB.
+ *
+ * This function prepares for registering a switch of backup buffers in the
+ * resource metadata just prior to unreserving. It's basically a wrapper around
+ * vmw_cmd_res_switch_backup with a different interface.
+ */
+static int vmw_cmd_switch_backup(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ enum vmw_res_type res_type,
+ const struct vmw_user_resource_conv
+ *converter, uint32_t *res_id, uint32_t *buf_id,
+ unsigned long backup_offset)
+{
+ struct vmw_resource *res;
+ int ret;
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, res_type,
+ VMW_RES_DIRTY_NONE, converter, res_id, &res);
+ if (ret)
+ return ret;
+
+ return vmw_cmd_res_switch_backup(dev_priv, sw_context, res, buf_id,
+ backup_offset);
+}
+
+/**
+ * vmw_cmd_bind_gb_surface - Validate SVGA_3D_CMD_BIND_GB_SURFACE command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_bind_gb_surface(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBindGBSurface) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter, &cmd->body.sid,
+ &cmd->body.mobid, 0);
+}
+
+/**
+ * vmw_cmd_update_gb_image - Validate SVGA_3D_CMD_UPDATE_GB_IMAGE command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_update_gb_image(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdUpdateGBImage) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.image.sid, NULL);
+}
+
+/**
+ * vmw_cmd_update_gb_surface - Validate SVGA_3D_CMD_UPDATE_GB_SURFACE command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_update_gb_surface(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdUpdateGBSurface) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_CLEAR, user_surface_converter,
+ &cmd->body.sid, NULL);
+}
+
+/**
+ * vmw_cmd_readback_gb_image - Validate SVGA_3D_CMD_READBACK_GB_IMAGE command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_readback_gb_image(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdReadbackGBImage) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.image.sid, NULL);
+}
+
+/**
+ * vmw_cmd_readback_gb_surface - Validate SVGA_3D_CMD_READBACK_GB_SURFACE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_readback_gb_surface(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdReadbackGBSurface) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_CLEAR, user_surface_converter,
+ &cmd->body.sid, NULL);
+}
+
+/**
+ * vmw_cmd_invalidate_gb_image - Validate SVGA_3D_CMD_INVALIDATE_GB_IMAGE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_invalidate_gb_image(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdInvalidateGBImage) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.image.sid, NULL);
+}
+
+/**
+ * vmw_cmd_invalidate_gb_surface - Validate SVGA_3D_CMD_INVALIDATE_GB_SURFACE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_invalidate_gb_surface(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdInvalidateGBSurface) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_CLEAR, user_surface_converter,
+ &cmd->body.sid, NULL);
+}
+
+/**
+ * vmw_cmd_shader_define - Validate SVGA_3D_CMD_SHADER_DEFINE command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_shader_define(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDefineShader);
+ int ret;
+ size_t size;
+ struct vmw_resource *ctx;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET, user_context_converter,
+ &cmd->body.cid, &ctx);
+ if (unlikely(ret != 0))
+ return ret;
+
+ if (unlikely(!dev_priv->has_mob))
+ return 0;
+
+ size = cmd->header.size - sizeof(cmd->body);
+ ret = vmw_compat_shader_add(dev_priv, vmw_context_res_man(ctx),
+ cmd->body.shid, cmd + 1, cmd->body.type,
+ size, &sw_context->staged_cmd_res);
+ if (unlikely(ret != 0))
+ return ret;
+
+ return vmw_resource_relocation_add(sw_context, NULL,
+ vmw_ptr_diff(sw_context->buf_start,
+ &cmd->header.id),
+ vmw_res_rel_nop);
+}
+
+/**
+ * vmw_cmd_shader_destroy - Validate SVGA_3D_CMD_SHADER_DESTROY command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_shader_destroy(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDestroyShader);
+ int ret;
+ struct vmw_resource *ctx;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET, user_context_converter,
+ &cmd->body.cid, &ctx);
+ if (unlikely(ret != 0))
+ return ret;
+
+ if (unlikely(!dev_priv->has_mob))
+ return 0;
+
+ ret = vmw_shader_remove(vmw_context_res_man(ctx), cmd->body.shid,
+ cmd->body.type, &sw_context->staged_cmd_res);
+ if (unlikely(ret != 0))
+ return ret;
+
+ return vmw_resource_relocation_add(sw_context, NULL,
+ vmw_ptr_diff(sw_context->buf_start,
+ &cmd->header.id),
+ vmw_res_rel_nop);
+}
+
+/**
+ * vmw_cmd_set_shader - Validate SVGA_3D_CMD_SET_SHADER command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_set_shader(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetShader);
+ struct vmw_ctx_bindinfo_shader binding;
+ struct vmw_resource *ctx, *res = NULL;
+ struct vmw_ctx_validation_info *ctx_info;
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ if (cmd->body.type >= SVGA3D_SHADERTYPE_PREDX_MAX) {
+ VMW_DEBUG_USER("Illegal shader type %u.\n",
+ (unsigned int) cmd->body.type);
+ return -EINVAL;
+ }
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET, user_context_converter,
+ &cmd->body.cid, &ctx);
+ if (unlikely(ret != 0))
+ return ret;
+
+ if (!dev_priv->has_mob)
+ return 0;
+
+ if (cmd->body.shid != SVGA3D_INVALID_ID) {
+ /*
+ * This is the compat shader path - Per device guest-backed
+ * shaders, but user-space thinks it's per context host-
+ * backed shaders.
+ */
+ res = vmw_shader_lookup(vmw_context_res_man(ctx),
+ cmd->body.shid, cmd->body.type);
+ if (!IS_ERR(res)) {
+ ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
+ VMW_RES_DIRTY_NONE);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_resource_relocation_add
+ (sw_context, res,
+ vmw_ptr_diff(sw_context->buf_start,
+ &cmd->body.shid),
+ vmw_res_rel_normal);
+ if (unlikely(ret != 0))
+ return ret;
+ }
+ }
+
+ if (IS_ERR_OR_NULL(res)) {
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_shader,
+ VMW_RES_DIRTY_NONE,
+ user_shader_converter, &cmd->body.shid,
+ &res);
+ if (unlikely(ret != 0))
+ return ret;
+ }
+
+ ctx_info = vmw_execbuf_info_from_res(sw_context, ctx);
+ if (!ctx_info)
+ return -EINVAL;
+
+ binding.bi.ctx = ctx;
+ binding.bi.res = res;
+ binding.bi.bt = vmw_ctx_binding_shader;
+ binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
+ vmw_binding_add(ctx_info->staged, &binding.bi, binding.shader_slot, 0);
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_set_shader_const - Validate SVGA_3D_CMD_SET_SHADER_CONST command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_set_shader_const(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdSetShaderConst);
+ int ret;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET, user_context_converter,
+ &cmd->body.cid, NULL);
+ if (unlikely(ret != 0))
+ return ret;
+
+ if (dev_priv->has_mob)
+ header->id = SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE;
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_bind_gb_shader - Validate SVGA_3D_CMD_BIND_GB_SHADER command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_bind_gb_shader(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdBindGBShader) =
+ container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_shader,
+ user_shader_converter, &cmd->body.shid,
+ &cmd->body.mobid, cmd->body.offsetInBytes);
+}
+
+/**
+ * vmw_cmd_dx_set_single_constant_buffer - Validate
+ * SVGA_3D_CMD_DX_SET_SINGLE_CONSTANT_BUFFER command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int
+vmw_cmd_dx_set_single_constant_buffer(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetSingleConstantBuffer);
+ struct vmw_resource *res = NULL;
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct vmw_ctx_bindinfo_cb binding;
+ int ret;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.sid, &res);
+ if (unlikely(ret != 0))
+ return ret;
+
+ binding.bi.ctx = ctx_node->ctx;
+ binding.bi.res = res;
+ binding.bi.bt = vmw_ctx_binding_cb;
+ binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
+ binding.offset = cmd->body.offsetInBytes;
+ binding.size = cmd->body.sizeInBytes;
+ binding.slot = cmd->body.slot;
+
+ if (binding.shader_slot >= SVGA3D_NUM_SHADERTYPE_DX10 ||
+ binding.slot >= SVGA3D_DX_MAX_CONSTBUFFERS) {
+ VMW_DEBUG_USER("Illegal const buffer shader %u slot %u.\n",
+ (unsigned int) cmd->body.type,
+ (unsigned int) binding.slot);
+ return -EINVAL;
+ }
+
+ vmw_binding_add(ctx_node->staged, &binding.bi, binding.shader_slot,
+ binding.slot);
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_dx_set_shader_res - Validate SVGA_3D_CMD_DX_SET_SHADER_RESOURCES
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_set_shader_res(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetShaderResources) =
+ container_of(header, typeof(*cmd), header);
+ u32 num_sr_view = (cmd->header.size - sizeof(cmd->body)) /
+ sizeof(SVGA3dShaderResourceViewId);
+
+ if ((u64) cmd->body.startView + (u64) num_sr_view >
+ (u64) SVGA3D_DX_MAX_SRVIEWS ||
+ cmd->body.type >= SVGA3D_SHADERTYPE_DX10_MAX) {
+ VMW_DEBUG_USER("Invalid shader binding.\n");
+ return -EINVAL;
+ }
+
+ return vmw_view_bindings_add(sw_context, vmw_view_sr,
+ vmw_ctx_binding_sr,
+ cmd->body.type - SVGA3D_SHADERTYPE_MIN,
+ (void *) &cmd[1], num_sr_view,
+ cmd->body.startView);
+}
+
+/**
+ * vmw_cmd_dx_set_shader - Validate SVGA_3D_CMD_DX_SET_SHADER command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_set_shader(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetShader);
+ struct vmw_resource *res = NULL;
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct vmw_ctx_bindinfo_shader binding;
+ int ret = 0;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ if (cmd->body.type >= SVGA3D_SHADERTYPE_DX10_MAX ||
+ cmd->body.type < SVGA3D_SHADERTYPE_MIN) {
+ VMW_DEBUG_USER("Illegal shader type %u.\n",
+ (unsigned int) cmd->body.type);
+ return -EINVAL;
+ }
+
+ if (cmd->body.shaderId != SVGA3D_INVALID_ID) {
+ res = vmw_shader_lookup(sw_context->man, cmd->body.shaderId, 0);
+ if (IS_ERR(res)) {
+ VMW_DEBUG_USER("Could not find shader for binding.\n");
+ return PTR_ERR(res);
+ }
+
+ ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
+ VMW_RES_DIRTY_NONE);
+ if (ret)
+ return ret;
+ }
+
+ binding.bi.ctx = ctx_node->ctx;
+ binding.bi.res = res;
+ binding.bi.bt = vmw_ctx_binding_dx_shader;
+ binding.shader_slot = cmd->body.type - SVGA3D_SHADERTYPE_MIN;
+
+ vmw_binding_add(ctx_node->staged, &binding.bi, binding.shader_slot, 0);
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_dx_set_vertex_buffers - Validates SVGA_3D_CMD_DX_SET_VERTEX_BUFFERS
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_set_vertex_buffers(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct vmw_ctx_bindinfo_vb binding;
+ struct vmw_resource *res;
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdDXSetVertexBuffers body;
+ SVGA3dVertexBuffer buf[];
+ } *cmd;
+ int i, ret, num;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ num = (cmd->header.size - sizeof(cmd->body)) /
+ sizeof(SVGA3dVertexBuffer);
+ if ((u64)num + (u64)cmd->body.startBuffer >
+ (u64)SVGA3D_DX_MAX_VERTEXBUFFERS) {
+ VMW_DEBUG_USER("Invalid number of vertex buffers.\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < num; i++) {
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE,
+ user_surface_converter,
+ &cmd->buf[i].sid, &res);
+ if (unlikely(ret != 0))
+ return ret;
+
+ binding.bi.ctx = ctx_node->ctx;
+ binding.bi.bt = vmw_ctx_binding_vb;
+ binding.bi.res = res;
+ binding.offset = cmd->buf[i].offset;
+ binding.stride = cmd->buf[i].stride;
+ binding.slot = i + cmd->body.startBuffer;
+
+ vmw_binding_add(ctx_node->staged, &binding.bi, 0, binding.slot);
+ }
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_dx_ia_set_vertex_buffers - Validate
+ * SVGA_3D_CMD_DX_IA_SET_INDEX_BUFFER command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_set_index_buffer(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct vmw_ctx_bindinfo_ib binding;
+ struct vmw_resource *res;
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetIndexBuffer);
+ int ret;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.sid, &res);
+ if (unlikely(ret != 0))
+ return ret;
+
+ binding.bi.ctx = ctx_node->ctx;
+ binding.bi.res = res;
+ binding.bi.bt = vmw_ctx_binding_ib;
+ binding.offset = cmd->body.offset;
+ binding.format = cmd->body.format;
+
+ vmw_binding_add(ctx_node->staged, &binding.bi, 0, 0);
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_dx_set_rendertarget - Validate SVGA_3D_CMD_DX_SET_RENDERTARGETS
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_set_rendertargets(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXSetRenderTargets) =
+ container_of(header, typeof(*cmd), header);
+ u32 num_rt_view = (cmd->header.size - sizeof(cmd->body)) /
+ sizeof(SVGA3dRenderTargetViewId);
+ int ret;
+
+ if (num_rt_view > SVGA3D_MAX_SIMULTANEOUS_RENDER_TARGETS) {
+ VMW_DEBUG_USER("Invalid DX Rendertarget binding.\n");
+ return -EINVAL;
+ }
+
+ ret = vmw_view_bindings_add(sw_context, vmw_view_ds, vmw_ctx_binding_ds,
+ 0, &cmd->body.depthStencilViewId, 1, 0);
+ if (ret)
+ return ret;
+
+ return vmw_view_bindings_add(sw_context, vmw_view_rt,
+ vmw_ctx_binding_dx_rt, 0, (void *)&cmd[1],
+ num_rt_view, 0);
+}
+
+/**
+ * vmw_cmd_dx_clear_rendertarget_view - Validate
+ * SVGA_3D_CMD_DX_CLEAR_RENDERTARGET_VIEW command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_clear_rendertarget_view(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXClearRenderTargetView) =
+ container_of(header, typeof(*cmd), header);
+
+ return PTR_RET(vmw_view_id_val_add(sw_context, vmw_view_rt,
+ cmd->body.renderTargetViewId));
+}
+
+/**
+ * vmw_cmd_dx_clear_rendertarget_view - Validate
+ * SVGA_3D_CMD_DX_CLEAR_DEPTHSTENCIL_VIEW command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_clear_depthstencil_view(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXClearDepthStencilView) =
+ container_of(header, typeof(*cmd), header);
+
+ return PTR_RET(vmw_view_id_val_add(sw_context, vmw_view_ds,
+ cmd->body.depthStencilViewId));
+}
+
+static int vmw_cmd_dx_view_define(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct vmw_resource *srf;
+ struct vmw_resource *res;
+ enum vmw_view_type view_type;
+ int ret;
+ /*
+ * This is based on the fact that all affected define commands have the
+ * same initial command body layout.
+ */
+ struct {
+ SVGA3dCmdHeader header;
+ uint32 defined_id;
+ uint32 sid;
+ } *cmd;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ view_type = vmw_view_cmd_to_type(header->id);
+ if (view_type == vmw_view_max)
+ return -EINVAL;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ if (unlikely(cmd->sid == SVGA3D_INVALID_ID)) {
+ VMW_DEBUG_USER("Invalid surface id.\n");
+ return -EINVAL;
+ }
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->sid, &srf);
+ if (unlikely(ret != 0))
+ return ret;
+
+ res = vmw_context_cotable(ctx_node->ctx, vmw_view_cotables[view_type]);
+ ret = vmw_cotable_notify(res, cmd->defined_id);
+ if (unlikely(ret != 0))
+ return ret;
+
+ return vmw_view_add(sw_context->man, ctx_node->ctx, srf, view_type,
+ cmd->defined_id, header,
+ header->size + sizeof(*header),
+ &sw_context->staged_cmd_res);
+}
+
+/**
+ * vmw_cmd_dx_set_so_targets - Validate SVGA_3D_CMD_DX_SET_SOTARGETS command.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_set_so_targets(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct vmw_ctx_bindinfo_so binding;
+ struct vmw_resource *res;
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdDXSetSOTargets body;
+ SVGA3dSoTarget targets[];
+ } *cmd;
+ int i, ret, num;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ cmd = container_of(header, typeof(*cmd), header);
+ num = (cmd->header.size - sizeof(cmd->body)) / sizeof(SVGA3dSoTarget);
+
+ if (num > SVGA3D_DX_MAX_SOTARGETS) {
+ VMW_DEBUG_USER("Invalid DX SO binding.\n");
+ return -EINVAL;
+ }
+
+ for (i = 0; i < num; i++) {
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_SET,
+ user_surface_converter,
+ &cmd->targets[i].sid, &res);
+ if (unlikely(ret != 0))
+ return ret;
+
+ binding.bi.ctx = ctx_node->ctx;
+ binding.bi.res = res;
+ binding.bi.bt = vmw_ctx_binding_so,
+ binding.offset = cmd->targets[i].offset;
+ binding.size = cmd->targets[i].sizeInBytes;
+ binding.slot = i;
+
+ vmw_binding_add(ctx_node->staged, &binding.bi, 0, binding.slot);
+ }
+
+ return 0;
+}
+
+static int vmw_cmd_dx_so_define(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct vmw_resource *res;
+ /*
+ * This is based on the fact that all affected define commands have
+ * the same initial command body layout.
+ */
+ struct {
+ SVGA3dCmdHeader header;
+ uint32 defined_id;
+ } *cmd;
+ enum vmw_so_type so_type;
+ int ret;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ so_type = vmw_so_cmd_to_type(header->id);
+ res = vmw_context_cotable(ctx_node->ctx, vmw_so_cotables[so_type]);
+ cmd = container_of(header, typeof(*cmd), header);
+ ret = vmw_cotable_notify(res, cmd->defined_id);
+
+ return ret;
+}
+
+/**
+ * vmw_cmd_dx_check_subresource - Validate SVGA_3D_CMD_DX_[X]_SUBRESOURCE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_check_subresource(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct {
+ SVGA3dCmdHeader header;
+ union {
+ SVGA3dCmdDXReadbackSubResource r_body;
+ SVGA3dCmdDXInvalidateSubResource i_body;
+ SVGA3dCmdDXUpdateSubResource u_body;
+ SVGA3dSurfaceId sid;
+ };
+ } *cmd;
+
+ BUILD_BUG_ON(offsetof(typeof(*cmd), r_body.sid) !=
+ offsetof(typeof(*cmd), sid));
+ BUILD_BUG_ON(offsetof(typeof(*cmd), i_body.sid) !=
+ offsetof(typeof(*cmd), sid));
+ BUILD_BUG_ON(offsetof(typeof(*cmd), u_body.sid) !=
+ offsetof(typeof(*cmd), sid));
+
+ cmd = container_of(header, typeof(*cmd), header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->sid, NULL);
+}
+
+static int vmw_cmd_dx_cid_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_dx_view_remove - validate a view remove command and schedule the view
+ * resource for removal.
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ *
+ * Check that the view exists, and if it was not created using this command
+ * batch, conditionally make this command a NOP.
+ */
+static int vmw_cmd_dx_view_remove(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct {
+ SVGA3dCmdHeader header;
+ union vmw_view_destroy body;
+ } *cmd = container_of(header, typeof(*cmd), header);
+ enum vmw_view_type view_type = vmw_view_cmd_to_type(header->id);
+ struct vmw_resource *view;
+ int ret;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ ret = vmw_view_remove(sw_context->man, cmd->body.view_id, view_type,
+ &sw_context->staged_cmd_res, &view);
+ if (ret || !view)
+ return ret;
+
+ /*
+ * If the view wasn't created during this command batch, it might
+ * have been removed due to a context swapout, so add a
+ * relocation to conditionally make this command a NOP to avoid
+ * device errors.
+ */
+ return vmw_resource_relocation_add(sw_context, view,
+ vmw_ptr_diff(sw_context->buf_start,
+ &cmd->header.id),
+ vmw_res_rel_cond_nop);
+}
+
+/**
+ * vmw_cmd_dx_define_shader - Validate SVGA_3D_CMD_DX_DEFINE_SHADER command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_define_shader(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ struct vmw_resource *res;
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDefineShader) =
+ container_of(header, typeof(*cmd), header);
+ int ret;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_DXSHADER);
+ ret = vmw_cotable_notify(res, cmd->body.shaderId);
+ if (ret)
+ return ret;
+
+ return vmw_dx_shader_add(sw_context->man, ctx_node->ctx,
+ cmd->body.shaderId, cmd->body.type,
+ &sw_context->staged_cmd_res);
+}
+
+/**
+ * vmw_cmd_dx_destroy_shader - Validate SVGA_3D_CMD_DX_DESTROY_SHADER command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_destroy_shader(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_ctx_validation_info *ctx_node = VMW_GET_CTX_NODE(sw_context);
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXDestroyShader) =
+ container_of(header, typeof(*cmd), header);
+ int ret;
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ ret = vmw_shader_remove(sw_context->man, cmd->body.shaderId, 0,
+ &sw_context->staged_cmd_res);
+
+ return ret;
+}
+
+/**
+ * vmw_cmd_dx_bind_shader - Validate SVGA_3D_CMD_DX_BIND_SHADER command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_bind_shader(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_resource *ctx;
+ struct vmw_resource *res;
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXBindShader) =
+ container_of(header, typeof(*cmd), header);
+ int ret;
+
+ if (cmd->body.cid != SVGA3D_INVALID_ID) {
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
+ VMW_RES_DIRTY_SET,
+ user_context_converter, &cmd->body.cid,
+ &ctx);
+ if (ret)
+ return ret;
+ } else {
+ struct vmw_ctx_validation_info *ctx_node =
+ VMW_GET_CTX_NODE(sw_context);
+
+ if (!ctx_node)
+ return -EINVAL;
+
+ ctx = ctx_node->ctx;
+ }
+
+ res = vmw_shader_lookup(vmw_context_res_man(ctx), cmd->body.shid, 0);
+ if (IS_ERR(res)) {
+ VMW_DEBUG_USER("Could not find shader to bind.\n");
+ return PTR_ERR(res);
+ }
+
+ ret = vmw_execbuf_res_noctx_val_add(sw_context, res,
+ VMW_RES_DIRTY_NONE);
+ if (ret) {
+ VMW_DEBUG_USER("Error creating resource validation node.\n");
+ return ret;
+ }
+
+ return vmw_cmd_res_switch_backup(dev_priv, sw_context, res,
+ &cmd->body.mobid,
+ cmd->body.offsetInBytes);
+}
+
+/**
+ * vmw_cmd_dx_genmips - Validate SVGA_3D_CMD_DX_GENMIPS command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_genmips(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXGenMips) =
+ container_of(header, typeof(*cmd), header);
+
+ return PTR_RET(vmw_view_id_val_add(sw_context, vmw_view_sr,
+ cmd->body.shaderResourceViewId));
+}
+
+/**
+ * vmw_cmd_dx_transfer_from_buffer - Validate
+ * SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_dx_transfer_from_buffer(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdDXTransferFromBuffer) =
+ container_of(header, typeof(*cmd), header);
+ int ret;
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_NONE, user_surface_converter,
+ &cmd->body.srcSid, NULL);
+ if (ret != 0)
+ return ret;
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_SET, user_surface_converter,
+ &cmd->body.destSid, NULL);
+}
+
+/**
+ * vmw_cmd_intra_surface_copy - Validate SVGA_3D_CMD_INTRA_SURFACE_COPY command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_intra_surface_copy(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ VMW_DECLARE_CMD_VAR(*cmd, SVGA3dCmdIntraSurfaceCopy) =
+ container_of(header, typeof(*cmd), header);
+
+ if (!(dev_priv->capabilities2 & SVGA_CAP2_INTRA_SURFACE_COPY))
+ return -EINVAL;
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ VMW_RES_DIRTY_SET, user_surface_converter,
+ &cmd->body.surface.sid, NULL);
+}
+
+static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ void *buf, uint32_t *size)
+{
+ uint32_t size_remaining = *size;
+ uint32_t cmd_id;
+
+ cmd_id = ((uint32_t *)buf)[0];
+ switch (cmd_id) {
+ case SVGA_CMD_UPDATE:
+ *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdUpdate);
+ break;
+ case SVGA_CMD_DEFINE_GMRFB:
+ *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdDefineGMRFB);
+ break;
+ case SVGA_CMD_BLIT_GMRFB_TO_SCREEN:
+ *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
+ break;
+ case SVGA_CMD_BLIT_SCREEN_TO_GMRFB:
+ *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
+ break;
+ default:
+ VMW_DEBUG_USER("Unsupported SVGA command: %u.\n", cmd_id);
+ return -EINVAL;
+ }
+
+ if (*size > size_remaining) {
+ VMW_DEBUG_USER("Invalid SVGA command (size mismatch): %u.\n",
+ cmd_id);
+ return -EINVAL;
+ }
+
+ if (unlikely(!sw_context->kernel)) {
+ VMW_DEBUG_USER("Kernel only SVGA command: %u.\n", cmd_id);
+ return -EPERM;
+ }
+
+ if (cmd_id == SVGA_CMD_DEFINE_GMRFB)
+ return vmw_cmd_check_define_gmrfb(dev_priv, sw_context, buf);
+
+ return 0;
+}
+
+static const struct vmw_cmd_entry vmw_cmd_entries[SVGA_3D_CMD_MAX] = {
+ VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DESTROY, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_COPY, &vmw_cmd_surface_copy_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_STRETCHBLT, &vmw_cmd_stretch_blt_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DMA, &vmw_cmd_dma,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DEFINE, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DESTROY, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETTRANSFORM, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETZRANGE, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERSTATE, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERTARGET,
+ &vmw_cmd_set_render_target_check, true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETTEXTURESTATE, &vmw_cmd_tex_state,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETMATERIAL, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTDATA, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTENABLED, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETVIEWPORT, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETCLIPPLANE, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_CLEAR, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_PRESENT, &vmw_cmd_present_check,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DEFINE, &vmw_cmd_shader_define,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DESTROY, &vmw_cmd_shader_destroy,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER, &vmw_cmd_set_shader,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER_CONST, &vmw_cmd_set_shader_const,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_DRAW_PRIMITIVES, &vmw_cmd_draw,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SETSCISSORRECT, &vmw_cmd_cid_check,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_QUERY, &vmw_cmd_begin_query,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_END_QUERY, &vmw_cmd_end_query,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_QUERY, &vmw_cmd_wait_query,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_PRESENT_READBACK, &vmw_cmd_ok,
+ true, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN,
+ &vmw_cmd_blt_surf_screen_check, false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE_V2, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_GENERATE_MIPMAPS, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_ACTIVATE_SURFACE, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEACTIVATE_SURFACE, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SCREEN_DMA, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEAD1, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEAD2, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_LOGICOPS_BITBLT, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_LOGICOPS_TRANSBLT, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_LOGICOPS_STRETCHBLT, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_LOGICOPS_COLORFILL, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_LOGICOPS_ALPHABLEND, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_LOGICOPS_CLEARTYPEBLEND, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_SET_OTABLE_BASE, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_READBACK_OTABLE, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_MOB, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_MOB, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_REDEFINE_GB_MOB64, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_MOB_MAPPING, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SURFACE, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SURFACE, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SURFACE, &vmw_cmd_bind_gb_surface,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_COND_BIND_GB_SURFACE, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_IMAGE, &vmw_cmd_update_gb_image,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_SURFACE,
+ &vmw_cmd_update_gb_surface, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_IMAGE,
+ &vmw_cmd_readback_gb_image, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_SURFACE,
+ &vmw_cmd_readback_gb_surface, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_IMAGE,
+ &vmw_cmd_invalidate_gb_image, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_SURFACE,
+ &vmw_cmd_invalidate_gb_surface, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SHADER, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SHADER, &vmw_cmd_bind_gb_shader,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SHADER, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_SET_OTABLE_BASE64, &vmw_cmd_invalid,
+ false, false, false),
+ VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_GB_QUERY, &vmw_cmd_begin_gb_query,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_END_GB_QUERY, &vmw_cmd_end_gb_query,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_GB_QUERY, &vmw_cmd_wait_gb_query,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_NOP, &vmw_cmd_ok,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_NOP_ERROR, &vmw_cmd_ok,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_ENABLE_GART, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DISABLE_GART, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_MAP_MOB_INTO_GART, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_UNMAP_GART_RANGE, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SCREENTARGET, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SCREENTARGET, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SCREENTARGET, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_SCREENTARGET, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_IMAGE_PARTIAL, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_IMAGE_PARTIAL, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_SET_GB_SHADERCONSTS_INLINE, &vmw_cmd_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_GB_SCREEN_DMA, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SURFACE_WITH_PITCH, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_GB_MOB_FENCE, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SURFACE_V2, &vmw_cmd_invalid,
+ false, false, true),
+
+ /* SM commands */
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_INVALIDATE_CONTEXT, &vmw_cmd_invalid,
+ false, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SINGLE_CONSTANT_BUFFER,
+ &vmw_cmd_dx_set_single_constant_buffer, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SHADER_RESOURCES,
+ &vmw_cmd_dx_set_shader_res, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SHADER, &vmw_cmd_dx_set_shader,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SAMPLERS, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INSTANCED, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_INDEXED_INSTANCED,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DRAW_AUTO, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VERTEX_BUFFERS,
+ &vmw_cmd_dx_set_vertex_buffers, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_INDEX_BUFFER,
+ &vmw_cmd_dx_set_index_buffer, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_RENDERTARGETS,
+ &vmw_cmd_dx_set_rendertargets, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_BLEND_STATE, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_DEPTHSTENCIL_STATE,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_RASTERIZER_STATE,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_QUERY, &vmw_cmd_dx_define_query,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_QUERY, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_QUERY, &vmw_cmd_dx_bind_query,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_QUERY_OFFSET,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_BEGIN_QUERY, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_END_QUERY, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_QUERY, &vmw_cmd_invalid,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_PREDICATION, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_VIEWPORTS, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SCISSORRECTS, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_RENDERTARGET_VIEW,
+ &vmw_cmd_dx_clear_rendertarget_view, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_CLEAR_DEPTHSTENCIL_VIEW,
+ &vmw_cmd_dx_clear_depthstencil_view, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY, &vmw_cmd_invalid,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_GENMIPS, &vmw_cmd_dx_genmips,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_UPDATE_SUBRESOURCE,
+ &vmw_cmd_dx_check_subresource, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_READBACK_SUBRESOURCE,
+ &vmw_cmd_dx_check_subresource, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_INVALIDATE_SUBRESOURCE,
+ &vmw_cmd_dx_check_subresource, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SHADERRESOURCE_VIEW,
+ &vmw_cmd_dx_view_define, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SHADERRESOURCE_VIEW,
+ &vmw_cmd_dx_view_remove, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RENDERTARGET_VIEW,
+ &vmw_cmd_dx_view_define, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_RENDERTARGET_VIEW,
+ &vmw_cmd_dx_view_remove, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_VIEW,
+ &vmw_cmd_dx_view_define, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_VIEW,
+ &vmw_cmd_dx_view_remove, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_ELEMENTLAYOUT,
+ &vmw_cmd_dx_so_define, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_ELEMENTLAYOUT,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_BLEND_STATE,
+ &vmw_cmd_dx_so_define, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_BLEND_STATE,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_STATE,
+ &vmw_cmd_dx_so_define, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_STATE,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE,
+ &vmw_cmd_dx_so_define, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_RASTERIZER_STATE,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SAMPLER_STATE,
+ &vmw_cmd_dx_so_define, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SAMPLER_STATE,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_SHADER,
+ &vmw_cmd_dx_define_shader, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_SHADER,
+ &vmw_cmd_dx_destroy_shader, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_BIND_SHADER,
+ &vmw_cmd_dx_bind_shader, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT,
+ &vmw_cmd_dx_so_define, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_DESTROY_STREAMOUTPUT,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_STREAMOUTPUT, &vmw_cmd_dx_cid_check,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_SOTARGETS,
+ &vmw_cmd_dx_set_so_targets, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_INPUT_LAYOUT,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_SET_TOPOLOGY,
+ &vmw_cmd_dx_cid_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_BUFFER_COPY,
+ &vmw_cmd_buffer_copy_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_PRED_COPY_REGION,
+ &vmw_cmd_pred_copy_check, true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER,
+ &vmw_cmd_dx_transfer_from_buffer,
+ true, false, true),
+ VMW_CMD_DEF(SVGA_3D_CMD_INTRA_SURFACE_COPY, &vmw_cmd_intra_surface_copy,
+ true, false, true),
+};
+
+bool vmw_cmd_describe(const void *buf, u32 *size, char const **cmd)
+{
+ u32 cmd_id = ((u32 *) buf)[0];
+
+ if (cmd_id >= SVGA_CMD_MAX) {
+ SVGA3dCmdHeader *header = (SVGA3dCmdHeader *) buf;
+ const struct vmw_cmd_entry *entry;
+
+ *size = header->size + sizeof(SVGA3dCmdHeader);
+ cmd_id = header->id;
+ if (cmd_id >= SVGA_3D_CMD_MAX)
+ return false;
+
+ cmd_id -= SVGA_3D_CMD_BASE;
+ entry = &vmw_cmd_entries[cmd_id];
+ *cmd = entry->cmd_name;
+ return true;
+ }
+
+ switch (cmd_id) {
+ case SVGA_CMD_UPDATE:
+ *cmd = "SVGA_CMD_UPDATE";
+ *size = sizeof(u32) + sizeof(SVGAFifoCmdUpdate);
+ break;
+ case SVGA_CMD_DEFINE_GMRFB:
+ *cmd = "SVGA_CMD_DEFINE_GMRFB";
+ *size = sizeof(u32) + sizeof(SVGAFifoCmdDefineGMRFB);
+ break;
+ case SVGA_CMD_BLIT_GMRFB_TO_SCREEN:
+ *cmd = "SVGA_CMD_BLIT_GMRFB_TO_SCREEN";
+ *size = sizeof(u32) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
+ break;
+ case SVGA_CMD_BLIT_SCREEN_TO_GMRFB:
+ *cmd = "SVGA_CMD_BLIT_SCREEN_TO_GMRFB";
+ *size = sizeof(u32) + sizeof(SVGAFifoCmdBlitGMRFBToScreen);
+ break;
+ default:
+ *cmd = "UNKNOWN";
+ *size = 0;
+ return false;
+ }
+
+ return true;
+}
+
+static int vmw_cmd_check(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context, void *buf,
+ uint32_t *size)
+{
+ uint32_t cmd_id;
+ uint32_t size_remaining = *size;
+ SVGA3dCmdHeader *header = (SVGA3dCmdHeader *) buf;
+ int ret;
+ const struct vmw_cmd_entry *entry;
+ bool gb = dev_priv->capabilities & SVGA_CAP_GBOBJECTS;
+
+ cmd_id = ((uint32_t *)buf)[0];
+ /* Handle any none 3D commands */
+ if (unlikely(cmd_id < SVGA_CMD_MAX))
+ return vmw_cmd_check_not_3d(dev_priv, sw_context, buf, size);
+
+
+ cmd_id = header->id;
+ *size = header->size + sizeof(SVGA3dCmdHeader);
+
+ cmd_id -= SVGA_3D_CMD_BASE;
+ if (unlikely(*size > size_remaining))
+ goto out_invalid;
+
+ if (unlikely(cmd_id >= SVGA_3D_CMD_MAX - SVGA_3D_CMD_BASE))
+ goto out_invalid;
+
+ entry = &vmw_cmd_entries[cmd_id];
+ if (unlikely(!entry->func))
+ goto out_invalid;
+
+ if (unlikely(!entry->user_allow && !sw_context->kernel))
+ goto out_privileged;
+
+ if (unlikely(entry->gb_disable && gb))
+ goto out_old;
+
+ if (unlikely(entry->gb_enable && !gb))
+ goto out_new;
+
+ ret = entry->func(dev_priv, sw_context, header);
+ if (unlikely(ret != 0)) {
+ VMW_DEBUG_USER("SVGA3D command: %d failed with error %d\n",
+ cmd_id + SVGA_3D_CMD_BASE, ret);
+ return ret;
+ }
+
+ return 0;
+out_invalid:
+ VMW_DEBUG_USER("Invalid SVGA3D command: %d\n",
+ cmd_id + SVGA_3D_CMD_BASE);
+ return -EINVAL;
+out_privileged:
+ VMW_DEBUG_USER("Privileged SVGA3D command: %d\n",
+ cmd_id + SVGA_3D_CMD_BASE);
+ return -EPERM;
+out_old:
+ VMW_DEBUG_USER("Deprecated (disallowed) SVGA3D command: %d\n",
+ cmd_id + SVGA_3D_CMD_BASE);
+ return -EINVAL;
+out_new:
+ VMW_DEBUG_USER("SVGA3D command: %d not supported by virtual device.\n",
+ cmd_id + SVGA_3D_CMD_BASE);
+ return -EINVAL;
+}
+
+static int vmw_cmd_check_all(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context, void *buf,
+ uint32_t size)
+{
+ int32_t cur_size = size;
+ int ret;
+
+ sw_context->buf_start = buf;
+
+ while (cur_size > 0) {
+ size = cur_size;
+ ret = vmw_cmd_check(dev_priv, sw_context, buf, &size);
+ if (unlikely(ret != 0))
+ return ret;
+ buf = (void *)((unsigned long) buf + size);
+ cur_size -= size;
+ }
+
+ if (unlikely(cur_size != 0)) {
+ VMW_DEBUG_USER("Command verifier out of sync.\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void vmw_free_relocations(struct vmw_sw_context *sw_context)
+{
+ /* Memory is validation context memory, so no need to free it */
+ INIT_LIST_HEAD(&sw_context->bo_relocations);
+}
+
+static void vmw_apply_relocations(struct vmw_sw_context *sw_context)
+{
+ struct vmw_relocation *reloc;
+ struct ttm_buffer_object *bo;
+
+ list_for_each_entry(reloc, &sw_context->bo_relocations, head) {
+ bo = &reloc->vbo->base;
+ switch (bo->mem.mem_type) {
+ case TTM_PL_VRAM:
+ reloc->location->offset += bo->offset;
+ reloc->location->gmrId = SVGA_GMR_FRAMEBUFFER;
+ break;
+ case VMW_PL_GMR:
+ reloc->location->gmrId = bo->mem.start;
+ break;
+ case VMW_PL_MOB:
+ *reloc->mob_loc = bo->mem.start;
+ break;
+ default:
+ BUG();
+ }
+ }
+ vmw_free_relocations(sw_context);
+}
+
+static int vmw_resize_cmd_bounce(struct vmw_sw_context *sw_context,
+ uint32_t size)
+{
+ if (likely(sw_context->cmd_bounce_size >= size))
+ return 0;
+
+ if (sw_context->cmd_bounce_size == 0)
+ sw_context->cmd_bounce_size = VMWGFX_CMD_BOUNCE_INIT_SIZE;
+
+ while (sw_context->cmd_bounce_size < size) {
+ sw_context->cmd_bounce_size =
+ PAGE_ALIGN(sw_context->cmd_bounce_size +
+ (sw_context->cmd_bounce_size >> 1));
+ }
+
+ vfree(sw_context->cmd_bounce);
+ sw_context->cmd_bounce = vmalloc(sw_context->cmd_bounce_size);
+
+ if (sw_context->cmd_bounce == NULL) {
+ VMW_DEBUG_USER("Failed to allocate command bounce buffer.\n");
+ sw_context->cmd_bounce_size = 0;
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+/**
+ * vmw_execbuf_fence_commands - create and submit a command stream fence
+ *
+ * Creates a fence object and submits a command stream marker.
+ * If this fails for some reason, We sync the fifo and return NULL.
+ * It is then safe to fence buffers with a NULL pointer.
+ *
+ * If @p_handle is not NULL @file_priv must also not be NULL. Creates a
+ * userspace handle if @p_handle is not NULL, otherwise not.
+ */
+
+int vmw_execbuf_fence_commands(struct drm_file *file_priv,
+ struct vmw_private *dev_priv,
+ struct vmw_fence_obj **p_fence,
+ uint32_t *p_handle)
+{
+ uint32_t sequence;
+ int ret;
+ bool synced = false;
+
+ /* p_handle implies file_priv. */
+ BUG_ON(p_handle != NULL && file_priv == NULL);
+
+ ret = vmw_fifo_send_fence(dev_priv, &sequence);
+ if (unlikely(ret != 0)) {
+ VMW_DEBUG_USER("Fence submission error. Syncing.\n");
+ synced = true;
+ }
+
+ if (p_handle != NULL)
+ ret = vmw_user_fence_create(file_priv, dev_priv->fman,
+ sequence, p_fence, p_handle);
+ else
+ ret = vmw_fence_create(dev_priv->fman, sequence, p_fence);
+
+ if (unlikely(ret != 0 && !synced)) {
+ (void) vmw_fallback_wait(dev_priv, false, false, sequence,
+ false, VMW_FENCE_WAIT_TIMEOUT);
+ *p_fence = NULL;
+ }
+
+ return ret;
+}
+
+/**
+ * vmw_execbuf_copy_fence_user - copy fence object information to user-space.
+ *
+ * @dev_priv: Pointer to a vmw_private struct.
+ * @vmw_fp: Pointer to the struct vmw_fpriv representing the calling file.
+ * @ret: Return value from fence object creation.
+ * @user_fence_rep: User space address of a struct drm_vmw_fence_rep to which
+ * the information should be copied.
+ * @fence: Pointer to the fenc object.
+ * @fence_handle: User-space fence handle.
+ * @out_fence_fd: exported file descriptor for the fence. -1 if not used
+ * @sync_file: Only used to clean up in case of an error in this function.
+ *
+ * This function copies fence information to user-space. If copying fails, the
+ * user-space struct drm_vmw_fence_rep::error member is hopefully left
+ * untouched, and if it's preloaded with an -EFAULT by user-space, the error
+ * will hopefully be detected.
+ *
+ * Also if copying fails, user-space will be unable to signal the fence object
+ * so we wait for it immediately, and then unreference the user-space reference.
+ */
+int
+vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv,
+ struct vmw_fpriv *vmw_fp, int ret,
+ struct drm_vmw_fence_rep __user *user_fence_rep,
+ struct vmw_fence_obj *fence, uint32_t fence_handle,
+ int32_t out_fence_fd)
+{
+ struct drm_vmw_fence_rep fence_rep;
+
+ if (user_fence_rep == NULL)
+ return 0;
+
+ memset(&fence_rep, 0, sizeof(fence_rep));
+
+ fence_rep.error = ret;
+ fence_rep.fd = out_fence_fd;
+ if (ret == 0) {
+ BUG_ON(fence == NULL);
+
+ fence_rep.handle = fence_handle;
+ fence_rep.seqno = fence->base.seqno;
+ vmw_update_seqno(dev_priv, &dev_priv->fifo);
+ fence_rep.passed_seqno = dev_priv->last_read_seqno;
+ }
+
+ /*
+ * copy_to_user errors will be detected by user space not seeing
+ * fence_rep::error filled in. Typically user-space would have pre-set
+ * that member to -EFAULT.
+ */
+ ret = copy_to_user(user_fence_rep, &fence_rep,
+ sizeof(fence_rep));
+
+ /*
+ * User-space lost the fence object. We need to sync and unreference the
+ * handle.
+ */
+ if (unlikely(ret != 0) && (fence_rep.error == 0)) {
+ ttm_ref_object_base_unref(vmw_fp->tfile, fence_handle,
+ TTM_REF_USAGE);
+ VMW_DEBUG_USER("Fence copy error. Syncing.\n");
+ (void) vmw_fence_obj_wait(fence, false, false,
+ VMW_FENCE_WAIT_TIMEOUT);
+ }
+
+ return ret ? -EFAULT : 0;
+}
+
+/**
+ * vmw_execbuf_submit_fifo - Patch a command batch and submit it using the fifo.
+ *
+ * @dev_priv: Pointer to a device private structure.
+ * @kernel_commands: Pointer to the unpatched command batch.
+ * @command_size: Size of the unpatched command batch.
+ * @sw_context: Structure holding the relocation lists.
+ *
+ * Side effects: If this function returns 0, then the command batch pointed to
+ * by @kernel_commands will have been modified.
+ */
+static int vmw_execbuf_submit_fifo(struct vmw_private *dev_priv,
+ void *kernel_commands, u32 command_size,
+ struct vmw_sw_context *sw_context)
+{
+ void *cmd;
+
+ if (sw_context->dx_ctx_node)
+ cmd = VMW_FIFO_RESERVE_DX(dev_priv, command_size,
+ sw_context->dx_ctx_node->ctx->id);
+ else
+ cmd = VMW_FIFO_RESERVE(dev_priv, command_size);
+
+ if (!cmd)
+ return -ENOMEM;
+
+ vmw_apply_relocations(sw_context);
+ memcpy(cmd, kernel_commands, command_size);
+ vmw_resource_relocations_apply(cmd, &sw_context->res_relocations);
+ vmw_resource_relocations_free(&sw_context->res_relocations);
+ vmw_fifo_commit(dev_priv, command_size);
+
+ return 0;
+}
+
+/**
+ * vmw_execbuf_submit_cmdbuf - Patch a command batch and submit it using the
+ * command buffer manager.
+ *
+ * @dev_priv: Pointer to a device private structure.
+ * @header: Opaque handle to the command buffer allocation.
+ * @command_size: Size of the unpatched command batch.
+ * @sw_context: Structure holding the relocation lists.
+ *
+ * Side effects: If this function returns 0, then the command buffer represented
+ * by @header will have been modified.
+ */
+static int vmw_execbuf_submit_cmdbuf(struct vmw_private *dev_priv,
+ struct vmw_cmdbuf_header *header,
+ u32 command_size,
+ struct vmw_sw_context *sw_context)
+{
+ u32 id = ((sw_context->dx_ctx_node) ? sw_context->dx_ctx_node->ctx->id :
+ SVGA3D_INVALID_ID);
+ void *cmd = vmw_cmdbuf_reserve(dev_priv->cman, command_size, id, false,
+ header);
+
+ vmw_apply_relocations(sw_context);
+ vmw_resource_relocations_apply(cmd, &sw_context->res_relocations);
+ vmw_resource_relocations_free(&sw_context->res_relocations);
+ vmw_cmdbuf_commit(dev_priv->cman, command_size, header, false);
+
+ return 0;
+}
+
+/**
+ * vmw_execbuf_cmdbuf - Prepare, if possible, a user-space command batch for
+ * submission using a command buffer.
+ *
+ * @dev_priv: Pointer to a device private structure.
+ * @user_commands: User-space pointer to the commands to be submitted.
+ * @command_size: Size of the unpatched command batch.
+ * @header: Out parameter returning the opaque pointer to the command buffer.
+ *
+ * This function checks whether we can use the command buffer manager for
+ * submission and if so, creates a command buffer of suitable size and copies
+ * the user data into that buffer.
+ *
+ * On successful return, the function returns a pointer to the data in the
+ * command buffer and *@header is set to non-NULL.
+ *
+ * If command buffers could not be used, the function will return the value of
+ * @kernel_commands on function call. That value may be NULL. In that case, the
+ * value of *@header will be set to NULL.
+ *
+ * If an error is encountered, the function will return a pointer error value.
+ * If the function is interrupted by a signal while sleeping, it will return
+ * -ERESTARTSYS casted to a pointer error value.
+ */
+static void *vmw_execbuf_cmdbuf(struct vmw_private *dev_priv,
+ void __user *user_commands,
+ void *kernel_commands, u32 command_size,
+ struct vmw_cmdbuf_header **header)
+{
+ size_t cmdbuf_size;
+ int ret;
+
+ *header = NULL;
+ if (command_size > SVGA_CB_MAX_SIZE) {
+ VMW_DEBUG_USER("Command buffer is too large.\n");
+ return ERR_PTR(-EINVAL);
+ }
+
+ if (!dev_priv->cman || kernel_commands)
+ return kernel_commands;
+
+ /* If possible, add a little space for fencing. */
+ cmdbuf_size = command_size + 512;
+ cmdbuf_size = min_t(size_t, cmdbuf_size, SVGA_CB_MAX_SIZE);
+ kernel_commands = vmw_cmdbuf_alloc(dev_priv->cman, cmdbuf_size, true,
+ header);
+ if (IS_ERR(kernel_commands))
+ return kernel_commands;
+
+ ret = copy_from_user(kernel_commands, user_commands, command_size);
+ if (ret) {
+ VMW_DEBUG_USER("Failed copying commands.\n");
+ vmw_cmdbuf_header_free(*header);
+ *header = NULL;
+ return ERR_PTR(-EFAULT);
+ }
+
+ return kernel_commands;
+}
+
+static int vmw_execbuf_tie_context(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ uint32_t handle)
+{
+ struct vmw_resource *res;
+ int ret;
+ unsigned int size;
+
+ if (handle == SVGA3D_INVALID_ID)
+ return 0;
+
+ size = vmw_execbuf_res_size(dev_priv, vmw_res_dx_context);
+ ret = vmw_validation_preload_res(sw_context->ctx, size);
+ if (ret)
+ return ret;
+
+ res = vmw_user_resource_noref_lookup_handle
+ (dev_priv, sw_context->fp->tfile, handle,
+ user_context_converter);
+ if (IS_ERR(res)) {
+ VMW_DEBUG_USER("Could not find or user DX context 0x%08x.\n",
+ (unsigned int) handle);
+ return PTR_ERR(res);
+ }
+
+ ret = vmw_execbuf_res_noref_val_add(sw_context, res, VMW_RES_DIRTY_SET);
+ if (unlikely(ret != 0))
+ return ret;
+
+ sw_context->dx_ctx_node = vmw_execbuf_info_from_res(sw_context, res);
+ sw_context->man = vmw_context_res_man(res);
+
+ return 0;
+}
+
+int vmw_execbuf_process(struct drm_file *file_priv,
+ struct vmw_private *dev_priv,
+ void __user *user_commands, void *kernel_commands,
+ uint32_t command_size, uint64_t throttle_us,
+ uint32_t dx_context_handle,
+ struct drm_vmw_fence_rep __user *user_fence_rep,
+ struct vmw_fence_obj **out_fence, uint32_t flags)
+{
+ struct vmw_sw_context *sw_context = &dev_priv->ctx;
+ struct vmw_fence_obj *fence = NULL;
+ struct vmw_cmdbuf_header *header;
+ uint32_t handle = 0;
+ int ret;
+ int32_t out_fence_fd = -1;
+ struct sync_file *sync_file = NULL;
+ DECLARE_VAL_CONTEXT(val_ctx, &sw_context->res_ht, 1);
+
+ vmw_validation_set_val_mem(&val_ctx, &dev_priv->vvm);
+
+ if (flags & DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD) {
+ out_fence_fd = get_unused_fd_flags(O_CLOEXEC);
+ if (out_fence_fd < 0) {
+ VMW_DEBUG_USER("Failed to get a fence fd.\n");
+ return out_fence_fd;
+ }
+ }
+
+ if (throttle_us) {
+ ret = vmw_wait_lag(dev_priv, &dev_priv->fifo.marker_queue,
+ throttle_us);
+
+ if (ret)
+ goto out_free_fence_fd;
+ }
+
+ kernel_commands = vmw_execbuf_cmdbuf(dev_priv, user_commands,
+ kernel_commands, command_size,
+ &header);
+ if (IS_ERR(kernel_commands)) {
+ ret = PTR_ERR(kernel_commands);
+ goto out_free_fence_fd;
+ }
+
+ ret = mutex_lock_interruptible(&dev_priv->cmdbuf_mutex);
+ if (ret) {
+ ret = -ERESTARTSYS;
+ goto out_free_header;
+ }
+
+ sw_context->kernel = false;
+ if (kernel_commands == NULL) {
+ ret = vmw_resize_cmd_bounce(sw_context, command_size);
+ if (unlikely(ret != 0))
+ goto out_unlock;
+
+ ret = copy_from_user(sw_context->cmd_bounce, user_commands,
+ command_size);
+ if (unlikely(ret != 0)) {
+ ret = -EFAULT;
+ VMW_DEBUG_USER("Failed copying commands.\n");
+ goto out_unlock;
+ }
+
+ kernel_commands = sw_context->cmd_bounce;
+ } else if (!header) {
+ sw_context->kernel = true;
+ }
+
+ sw_context->fp = vmw_fpriv(file_priv);
+ INIT_LIST_HEAD(&sw_context->ctx_list);
+ sw_context->cur_query_bo = dev_priv->pinned_bo;
+ sw_context->last_query_ctx = NULL;
+ sw_context->needs_post_query_barrier = false;
+ sw_context->dx_ctx_node = NULL;
+ sw_context->dx_query_mob = NULL;
+ sw_context->dx_query_ctx = NULL;
+ memset(sw_context->res_cache, 0, sizeof(sw_context->res_cache));
+ INIT_LIST_HEAD(&sw_context->res_relocations);
+ INIT_LIST_HEAD(&sw_context->bo_relocations);
+
+ if (sw_context->staged_bindings)
+ vmw_binding_state_reset(sw_context->staged_bindings);
+
+ if (!sw_context->res_ht_initialized) {
+ ret = drm_ht_create(&sw_context->res_ht, VMW_RES_HT_ORDER);
+ if (unlikely(ret != 0))
+ goto out_unlock;
+
+ sw_context->res_ht_initialized = true;
+ }
+
+ INIT_LIST_HEAD(&sw_context->staged_cmd_res);
+ sw_context->ctx = &val_ctx;
+ ret = vmw_execbuf_tie_context(dev_priv, sw_context, dx_context_handle);
+ if (unlikely(ret != 0))
+ goto out_err_nores;
+
+ ret = vmw_cmd_check_all(dev_priv, sw_context, kernel_commands,
+ command_size);
+ if (unlikely(ret != 0))
+ goto out_err_nores;
+
+ ret = vmw_resources_reserve(sw_context);
+ if (unlikely(ret != 0))
+ goto out_err_nores;
+
+ ret = vmw_validation_bo_reserve(&val_ctx, true);
+ if (unlikely(ret != 0))
+ goto out_err_nores;
+
+ ret = vmw_validation_bo_validate(&val_ctx, true);
+ if (unlikely(ret != 0))
+ goto out_err;
+
+ ret = vmw_validation_res_validate(&val_ctx, true);
+ if (unlikely(ret != 0))
+ goto out_err;
+
+ vmw_validation_drop_ht(&val_ctx);
+
+ ret = mutex_lock_interruptible(&dev_priv->binding_mutex);
+ if (unlikely(ret != 0)) {
+ ret = -ERESTARTSYS;
+ goto out_err;
+ }
+
+ if (dev_priv->has_mob) {
+ ret = vmw_rebind_contexts(sw_context);
+ if (unlikely(ret != 0))
+ goto out_unlock_binding;
+ }
+
+ if (!header) {
+ ret = vmw_execbuf_submit_fifo(dev_priv, kernel_commands,
+ command_size, sw_context);
+ } else {
+ ret = vmw_execbuf_submit_cmdbuf(dev_priv, header, command_size,
+ sw_context);
+ header = NULL;
+ }
+ mutex_unlock(&dev_priv->binding_mutex);
+ if (ret)
+ goto out_err;
+
+ vmw_query_bo_switch_commit(dev_priv, sw_context);
+ ret = vmw_execbuf_fence_commands(file_priv, dev_priv, &fence,
+ (user_fence_rep) ? &handle : NULL);
+ /*
+ * This error is harmless, because if fence submission fails,
+ * vmw_fifo_send_fence will sync. The error will be propagated to
+ * user-space in @fence_rep
+ */
+ if (ret != 0)
+ VMW_DEBUG_USER("Fence submission error. Syncing.\n");
+
+ vmw_execbuf_bindings_commit(sw_context, false);
+ vmw_bind_dx_query_mob(sw_context);
+ vmw_validation_res_unreserve(&val_ctx, false);
+
+ vmw_validation_bo_fence(sw_context->ctx, fence);
+
+ if (unlikely(dev_priv->pinned_bo != NULL && !dev_priv->query_cid_valid))
+ __vmw_execbuf_release_pinned_bo(dev_priv, fence);
+
+ /*
+ * If anything fails here, give up trying to export the fence and do a
+ * sync since the user mode will not be able to sync the fence itself.
+ * This ensures we are still functionally correct.
+ */
+ if (flags & DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD) {
+
+ sync_file = sync_file_create(&fence->base);
+ if (!sync_file) {
+ VMW_DEBUG_USER("Sync file create failed for fence\n");
+ put_unused_fd(out_fence_fd);
+ out_fence_fd = -1;
+
+ (void) vmw_fence_obj_wait(fence, false, false,
+ VMW_FENCE_WAIT_TIMEOUT);
+ }
+ }
+
+ ret = vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret,
+ user_fence_rep, fence, handle, out_fence_fd);
+
+ if (sync_file) {
+ if (ret) {
+ /* usercopy of fence failed, put the file object */
+ fput(sync_file->file);
+ put_unused_fd(out_fence_fd);
+ } else {
+ /* Link the fence with the FD created earlier */
+ fd_install(out_fence_fd, sync_file->file);
+ }
+ }
+
+ /* Don't unreference when handing fence out */
+ if (unlikely(out_fence != NULL)) {
+ *out_fence = fence;
+ fence = NULL;
+ } else if (likely(fence != NULL)) {
+ vmw_fence_obj_unreference(&fence);
+ }
+
+ vmw_cmdbuf_res_commit(&sw_context->staged_cmd_res);
+ mutex_unlock(&dev_priv->cmdbuf_mutex);
+
+ /*
+ * Unreference resources outside of the cmdbuf_mutex to avoid deadlocks
+ * in resource destruction paths.
+ */
+ vmw_validation_unref_lists(&val_ctx);
+
+ return ret;
+
+out_unlock_binding:
+ mutex_unlock(&dev_priv->binding_mutex);
+out_err:
+ vmw_validation_bo_backoff(&val_ctx);
+out_err_nores:
+ vmw_execbuf_bindings_commit(sw_context, true);
+ vmw_validation_res_unreserve(&val_ctx, true);
+ vmw_resource_relocations_free(&sw_context->res_relocations);
+ vmw_free_relocations(sw_context);
+ if (unlikely(dev_priv->pinned_bo != NULL && !dev_priv->query_cid_valid))
+ __vmw_execbuf_release_pinned_bo(dev_priv, NULL);
+out_unlock:
+ vmw_cmdbuf_res_revert(&sw_context->staged_cmd_res);
+ vmw_validation_drop_ht(&val_ctx);
+ WARN_ON(!list_empty(&sw_context->ctx_list));
+ mutex_unlock(&dev_priv->cmdbuf_mutex);
+
+ /*
+ * Unreference resources outside of the cmdbuf_mutex to avoid deadlocks
+ * in resource destruction paths.
+ */
+ vmw_validation_unref_lists(&val_ctx);
+out_free_header:
+ if (header)
+ vmw_cmdbuf_header_free(header);
+out_free_fence_fd:
+ if (out_fence_fd >= 0)
+ put_unused_fd(out_fence_fd);
+
+ return ret;
+}
+
+/**
+ * vmw_execbuf_unpin_panic - Idle the fifo and unpin the query buffer.
+ *
+ * @dev_priv: The device private structure.
+ *
+ * This function is called to idle the fifo and unpin the query buffer if the
+ * normal way to do this hits an error, which should typically be extremely
+ * rare.
+ */
+static void vmw_execbuf_unpin_panic(struct vmw_private *dev_priv)
+{
+ VMW_DEBUG_USER("Can't unpin query buffer. Trying to recover.\n");
+
+ (void) vmw_fallback_wait(dev_priv, false, true, 0, false, 10*HZ);
+ vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
+ if (dev_priv->dummy_query_bo_pinned) {
+ vmw_bo_pin_reserved(dev_priv->dummy_query_bo, false);
+ dev_priv->dummy_query_bo_pinned = false;
+ }
+}
+
+
+/**
+ * __vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned query
+ * bo.
+ *
+ * @dev_priv: The device private structure.
+ * @fence: If non-NULL should point to a struct vmw_fence_obj issued _after_ a
+ * query barrier that flushes all queries touching the current buffer pointed to
+ * by @dev_priv->pinned_bo
+ *
+ * This function should be used to unpin the pinned query bo, or as a query
+ * barrier when we need to make sure that all queries have finished before the
+ * next fifo command. (For example on hardware context destructions where the
+ * hardware may otherwise leak unfinished queries).
+ *
+ * This function does not return any failure codes, but make attempts to do safe
+ * unpinning in case of errors.
+ *
+ * The function will synchronize on the previous query barrier, and will thus
+ * not finish until that barrier has executed.
+ *
+ * the @dev_priv->cmdbuf_mutex needs to be held by the current thread before
+ * calling this function.
+ */
+void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv,
+ struct vmw_fence_obj *fence)
+{
+ int ret = 0;
+ struct vmw_fence_obj *lfence = NULL;
+ DECLARE_VAL_CONTEXT(val_ctx, NULL, 0);
+
+ if (dev_priv->pinned_bo == NULL)
+ goto out_unlock;
+
+ ret = vmw_validation_add_bo(&val_ctx, dev_priv->pinned_bo, false,
+ false);
+ if (ret)
+ goto out_no_reserve;
+
+ ret = vmw_validation_add_bo(&val_ctx, dev_priv->dummy_query_bo, false,
+ false);
+ if (ret)
+ goto out_no_reserve;
+
+ ret = vmw_validation_bo_reserve(&val_ctx, false);
+ if (ret)
+ goto out_no_reserve;
+
+ if (dev_priv->query_cid_valid) {
+ BUG_ON(fence != NULL);
+ ret = vmw_fifo_emit_dummy_query(dev_priv, dev_priv->query_cid);
+ if (ret)
+ goto out_no_emit;
+ dev_priv->query_cid_valid = false;
+ }
+
+ vmw_bo_pin_reserved(dev_priv->pinned_bo, false);
+ if (dev_priv->dummy_query_bo_pinned) {
+ vmw_bo_pin_reserved(dev_priv->dummy_query_bo, false);
+ dev_priv->dummy_query_bo_pinned = false;
+ }
+ if (fence == NULL) {
+ (void) vmw_execbuf_fence_commands(NULL, dev_priv, &lfence,
+ NULL);
+ fence = lfence;
+ }
+ vmw_validation_bo_fence(&val_ctx, fence);
+ if (lfence != NULL)
+ vmw_fence_obj_unreference(&lfence);
+
+ vmw_validation_unref_lists(&val_ctx);
+ vmw_bo_unreference(&dev_priv->pinned_bo);
+
+out_unlock:
+ return;
+out_no_emit:
+ vmw_validation_bo_backoff(&val_ctx);
+out_no_reserve:
+ vmw_validation_unref_lists(&val_ctx);
+ vmw_execbuf_unpin_panic(dev_priv);
+ vmw_bo_unreference(&dev_priv->pinned_bo);
+}
+
+/**
+ * vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned query bo.
+ *
+ * @dev_priv: The device private structure.
+ *
+ * This function should be used to unpin the pinned query bo, or as a query
+ * barrier when we need to make sure that all queries have finished before the
+ * next fifo command. (For example on hardware context destructions where the
+ * hardware may otherwise leak unfinished queries).
+ *
+ * This function does not return any failure codes, but make attempts to do safe
+ * unpinning in case of errors.
+ *
+ * The function will synchronize on the previous query barrier, and will thus
+ * not finish until that barrier has executed.
+ */
+void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv)
+{
+ mutex_lock(&dev_priv->cmdbuf_mutex);
+ if (dev_priv->query_cid_valid)
+ __vmw_execbuf_release_pinned_bo(dev_priv, NULL);
+ mutex_unlock(&dev_priv->cmdbuf_mutex);
+}
+
+int vmw_execbuf_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct drm_vmw_execbuf_arg *arg = data;
+ int ret;
+ struct dma_fence *in_fence = NULL;
+
+ /*
+ * Extend the ioctl argument while maintaining backwards compatibility:
+ * We take different code paths depending on the value of arg->version.
+ *
+ * Note: The ioctl argument is extended and zeropadded by core DRM.
+ */
+ if (unlikely(arg->version > DRM_VMW_EXECBUF_VERSION ||
+ arg->version == 0)) {
+ VMW_DEBUG_USER("Incorrect execbuf version.\n");
+ return -EINVAL;
+ }
+
+ switch (arg->version) {
+ case 1:
+ /* For v1 core DRM have extended + zeropadded the data */
+ arg->context_handle = (uint32_t) -1;
+ break;
+ case 2:
+ default:
+ /* For v2 and later core DRM would have correctly copied it */
+ break;
+ }
+
+ /* If imported a fence FD from elsewhere, then wait on it */
+ if (arg->flags & DRM_VMW_EXECBUF_FLAG_IMPORT_FENCE_FD) {
+ in_fence = sync_file_get_fence(arg->imported_fence_fd);
+
+ if (!in_fence) {
+ VMW_DEBUG_USER("Cannot get imported fence\n");
+ return -EINVAL;
+ }
+
+ ret = vmw_wait_dma_fence(dev_priv->fman, in_fence);
+ if (ret)
+ goto out;
+ }
+
+ ret = ttm_read_lock(&dev_priv->reservation_sem, true);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_execbuf_process(file_priv, dev_priv,
+ (void __user *)(unsigned long)arg->commands,
+ NULL, arg->command_size, arg->throttle_us,
+ arg->context_handle,
+ (void __user *)(unsigned long)arg->fence_rep,
+ NULL, arg->flags);
+
+ ttm_read_unlock(&dev_priv->reservation_sem);
+ if (unlikely(ret != 0))
+ goto out;
+
+ vmw_kms_cursor_post_execbuf(dev_priv);
+
+out:
+ if (in_fence)
+ dma_fence_put(in_fence);
+ return ret;
+}