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linux_dsm_epyc7002/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
Thomas Hellstrom e8c66efbfe drm/vmwgfx: Make user resource lookups reference-free during validation 
Make the process of looking up a user resource and adding it to the
validation list reference-free unless when it's actually added to the
validation list where a single reference is taken.
This saves two locked atomic operations per command stream buffer object
handle lookup, unless there is a lookup cache hit.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
2018-09-28 08:57:09 +02:00

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// 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
/*
* 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)) {
DRM_ERROR("Failed to allocate context binding "
"information.\n");
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)) {
DRM_ERROR("Failed to allocate context binding "
"information.\n");
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.
*
* 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)
{
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)) {
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,
(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)
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.
*
* 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)
{
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))
return 0;
ret = vmw_validation_add_resource(sw_context->ctx, res, 0, &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));
if (ret)
return ret;
return vmw_execbuf_res_noctx_val_add(sw_context, view);
}
/**
* 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) {
DRM_ERROR("DX Context not set.\n");
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);
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);
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)) {
DRM_ERROR("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.
* @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,
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) {
DRM_ERROR("Illegal context invalid id.\n");
return -EINVAL;
}
return 0;
}
if (likely(rcache->valid_handle && *id_loc == rcache->handle)) {
res = rcache->res;
} 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 (unlikely(IS_ERR(res))) {
DRM_ERROR("Could not find or use resource 0x%08x.\n",
(unsigned int) *id_loc);
return PTR_ERR(res);
}
ret = vmw_execbuf_res_noref_val_add(sw_context, res);
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;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXBindAllQuery body;
} *cmd;
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) {
DRM_ERROR("Failed to rebind queries.\n");
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)
DRM_ERROR("Failed to rebind context.\n");
return ret;
}
ret = vmw_rebind_all_dx_query(val->ctx);
if (ret != 0)
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 = sw_context->dx_ctx_node;
u32 i;
if (!ctx_node) {
DRM_ERROR("DX Context not set.\n");
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)) {
DRM_ERROR("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)
{
struct vmw_cid_cmd {
SVGA3dCmdHeader header;
uint32_t cid;
} *cmd;
cmd = container_of(header, struct vmw_cid_cmd, header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
user_context_converter, &cmd->cid, 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)
{
struct vmw_sid_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSetRenderTarget body;
} *cmd;
struct vmw_resource *ctx;
struct vmw_resource *res;
int ret;
cmd = container_of(header, struct vmw_sid_cmd, header);
if (cmd->body.type >= SVGA3D_RT_MAX) {
DRM_ERROR("Illegal render target type %u.\n",
(unsigned) cmd->body.type);
return -EINVAL;
}
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
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,
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)
{
struct vmw_sid_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSurfaceCopy body;
} *cmd;
int ret;
cmd = container_of(header, struct vmw_sid_cmd, header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.src.sid, NULL);
if (ret)
return ret;
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXBufferCopy body;
} *cmd;
int ret;
cmd = container_of(header, typeof(*cmd), header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.src, NULL);
if (ret != 0)
return ret;
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXPredCopyRegion body;
} *cmd;
int ret;
cmd = container_of(header, typeof(*cmd), header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.srcSid, NULL);
if (ret != 0)
return ret;
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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)
{
struct vmw_sid_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSurfaceStretchBlt body;
} *cmd;
int ret;
cmd = container_of(header, struct vmw_sid_cmd, header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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,
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)
{
struct vmw_sid_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdBlitSurfaceToScreen body;
} *cmd;
cmd = container_of(header, struct vmw_sid_cmd, header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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)
{
struct vmw_sid_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdPresent body;
} *cmd;
cmd = container_of(header, struct vmw_sid_cmd, header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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)) {
DRM_ERROR("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))
DRM_ERROR("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)) {
DRM_ERROR("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)) {
DRM_ERROR("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 a 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)
{
struct vmw_dx_define_query_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdDXDefineQuery q;
} *cmd;
int ret;
struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
struct vmw_resource *cotable_res;
if (ctx_node == NULL) {
DRM_ERROR("DX Context not set for query.\n");
return -EINVAL;
}
cmd = container_of(header, struct vmw_dx_define_query_cmd, header);
if (cmd->q.type < SVGA3D_QUERYTYPE_MIN ||
cmd->q.type >= SVGA3D_QUERYTYPE_MAX)
return -EINVAL;
cotable_res = vmw_context_cotable(ctx_node->ctx, SVGA_COTABLE_DXQUERY);
ret = vmw_cotable_notify(cotable_res, cmd->q.queryId);
return ret;
}
/**
* vmw_cmd_dx_bind_query - validate a 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)
{
struct vmw_dx_bind_query_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdDXBindQuery q;
} *cmd;
struct vmw_buffer_object *vmw_bo;
int ret;
cmd = container_of(header, struct vmw_dx_bind_query_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->q.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 a 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)
{
struct vmw_begin_gb_query_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdBeginGBQuery q;
} *cmd;
cmd = container_of(header, struct vmw_begin_gb_query_cmd,
header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
user_context_converter, &cmd->q.cid,
NULL);
}
/**
* vmw_cmd_begin_query - validate a 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)
{
struct vmw_begin_query_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdBeginQuery q;
} *cmd;
cmd = container_of(header, struct vmw_begin_query_cmd,
header);
if (unlikely(dev_priv->has_mob)) {
struct {
SVGA3dCmdHeader header;
SVGA3dCmdBeginGBQuery q;
} gb_cmd;
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.q.cid = cmd->q.cid;
gb_cmd.q.type = cmd->q.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,
user_context_converter, &cmd->q.cid,
NULL);
}
/**
* vmw_cmd_end_gb_query - validate a 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;
struct vmw_query_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdEndGBQuery q;
} *cmd;
int ret;
cmd = container_of(header, struct vmw_query_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->q.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 a 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;
struct vmw_query_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdEndQuery q;
} *cmd;
int ret;
cmd = container_of(header, struct vmw_query_cmd, header);
if (dev_priv->has_mob) {
struct {
SVGA3dCmdHeader header;
SVGA3dCmdEndGBQuery q;
} gb_cmd;
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.q.cid = cmd->q.cid;
gb_cmd.q.type = cmd->q.type;
gb_cmd.q.mobid = cmd->q.guestResult.gmrId;
gb_cmd.q.offset = cmd->q.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->q.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 a 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;
struct vmw_query_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdWaitForGBQuery q;
} *cmd;
int ret;
cmd = container_of(header, struct vmw_query_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->q.mobid,
&vmw_bo);
if (unlikely(ret != 0))
return ret;
return 0;
}
/**
* vmw_cmd_wait_query - validate a 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;
struct vmw_query_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdWaitForQuery q;
} *cmd;
int ret;
cmd = container_of(header, struct vmw_query_cmd, header);
if (dev_priv->has_mob) {
struct {
SVGA3dCmdHeader header;
SVGA3dCmdWaitForGBQuery q;
} gb_cmd;
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.q.cid = cmd->q.cid;
gb_cmd.q.type = cmd->q.type;
gb_cmd.q.mobid = cmd->q.guestResult.gmrId;
gb_cmd.q.offset = cmd->q.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->q.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;
struct vmw_dma_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSurfaceDMA dma;
} *cmd;
int ret;
SVGA3dCmdSurfaceDMASuffix *suffix;
uint32_t bo_size;
cmd = container_of(header, struct vmw_dma_cmd, header);
suffix = (SVGA3dCmdSurfaceDMASuffix *)((unsigned long) &cmd->dma +
header->size - sizeof(*suffix));
/* Make sure device and verifier stays in sync. */
if (unlikely(suffix->suffixSize != sizeof(*suffix))) {
DRM_ERROR("Invalid DMA suffix size.\n");
return -EINVAL;
}
ret = vmw_translate_guest_ptr(dev_priv, sw_context,
&cmd->dma.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->dma.guest.ptr.offset > bo_size)) {
DRM_ERROR("Invalid DMA offset.\n");
return -EINVAL;
}
bo_size -= cmd->dma.guest.ptr.offset;
if (unlikely(suffix->maximumOffset > bo_size))
suffix->maximumOffset = bo_size;
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter, &cmd->dma.host.sid,
NULL);
if (unlikely(ret != 0)) {
if (unlikely(ret != -ERESTARTSYS))
DRM_ERROR("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)
{
struct vmw_draw_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdDrawPrimitives body;
} *cmd;
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, struct vmw_draw_cmd, header);
maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl);
if (unlikely(cmd->body.numVertexDecls > maxnum)) {
DRM_ERROR("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,
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)) {
DRM_ERROR("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,
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)
{
struct vmw_tex_state_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSetTextureState state;
} *cmd;
SVGA3dTextureState *last_state = (SVGA3dTextureState *)
((unsigned long) header + header->size + sizeof(header));
SVGA3dTextureState *cur_state = (SVGA3dTextureState *)
((unsigned long) header + sizeof(struct vmw_tex_state_cmd));
struct vmw_resource *ctx;
struct vmw_resource *res;
int ret;
cmd = container_of(header, struct vmw_tex_state_cmd,
header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
user_context_converter, &cmd->state.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) {
DRM_ERROR("Illegal texture/sampler unit %u.\n",
(unsigned) cur_state->stage);
return -EINVAL;
}
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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;
int ret;
struct {
uint32_t header;
SVGAFifoCmdDefineGMRFB body;
} *cmd = buf;
return vmw_translate_guest_ptr(dev_priv, sw_context,
&cmd->body.ptr,
&vmw_bo);
return ret;
}
/**
* 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,
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 an 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)
{
struct vmw_bind_gb_surface_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdBindGBSurface body;
} *cmd;
cmd = container_of(header, struct vmw_bind_gb_surface_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 an 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)
{
struct vmw_gb_surface_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdUpdateGBImage body;
} *cmd;
cmd = container_of(header, struct vmw_gb_surface_cmd, header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.image.sid, NULL);
}
/**
* vmw_cmd_update_gb_surface - Validate an 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)
{
struct vmw_gb_surface_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdUpdateGBSurface body;
} *cmd;
cmd = container_of(header, struct vmw_gb_surface_cmd, header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.sid, NULL);
}
/**
* vmw_cmd_readback_gb_image - Validate an 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)
{
struct vmw_gb_surface_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdReadbackGBImage body;
} *cmd;
cmd = container_of(header, struct vmw_gb_surface_cmd, header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.image.sid, NULL);
}
/**
* vmw_cmd_readback_gb_surface - Validate an 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)
{
struct vmw_gb_surface_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdReadbackGBSurface body;
} *cmd;
cmd = container_of(header, struct vmw_gb_surface_cmd, header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.sid, NULL);
}
/**
* vmw_cmd_invalidate_gb_image - Validate an 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)
{
struct vmw_gb_surface_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdInvalidateGBImage body;
} *cmd;
cmd = container_of(header, struct vmw_gb_surface_cmd, header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.image.sid, NULL);
}
/**
* vmw_cmd_invalidate_gb_surface - Validate an
* 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)
{
struct vmw_gb_surface_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdInvalidateGBSurface body;
} *cmd;
cmd = container_of(header, struct vmw_gb_surface_cmd, header);
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.sid, NULL);
}
/**
* vmw_cmd_shader_define - Validate an 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)
{
struct vmw_shader_define_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdDefineShader body;
} *cmd;
int ret;
size_t size;
struct vmw_resource *ctx;
cmd = container_of(header, struct vmw_shader_define_cmd,
header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
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 an 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)
{
struct vmw_shader_destroy_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdDestroyShader body;
} *cmd;
int ret;
struct vmw_resource *ctx;
cmd = container_of(header, struct vmw_shader_destroy_cmd,
header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
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 an 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)
{
struct vmw_set_shader_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSetShader body;
} *cmd;
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, struct vmw_set_shader_cmd,
header);
if (cmd->body.type >= SVGA3D_SHADERTYPE_PREDX_MAX) {
DRM_ERROR("Illegal shader type %u.\n",
(unsigned) cmd->body.type);
return -EINVAL;
}
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
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) {
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);
if (unlikely(ret != 0))
return ret;
}
}
if (IS_ERR_OR_NULL(res)) {
ret = vmw_cmd_res_check(dev_priv, sw_context,
vmw_res_shader,
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 an 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)
{
struct vmw_set_shader_const_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdSetShaderConst body;
} *cmd;
int ret;
cmd = container_of(header, struct vmw_set_shader_const_cmd,
header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context,
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 an 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)
{
struct vmw_bind_gb_shader_cmd {
SVGA3dCmdHeader header;
SVGA3dCmdBindGBShader body;
} *cmd;
cmd = container_of(header, struct vmw_bind_gb_shader_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 an
* 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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetSingleConstantBuffer body;
} *cmd;
struct vmw_resource *res = NULL;
struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
struct vmw_ctx_bindinfo_cb binding;
int ret;
if (unlikely(ctx_node == NULL)) {
DRM_ERROR("DX Context not set.\n");
return -EINVAL;
}
cmd = container_of(header, typeof(*cmd), header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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) {
DRM_ERROR("Illegal const buffer shader %u slot %u.\n",
(unsigned) cmd->body.type,
(unsigned) 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 an
* 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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetShaderResources body;
} *cmd = 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) {
DRM_ERROR("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 an 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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetShader body;
} *cmd;
struct vmw_resource *res = NULL;
struct vmw_ctx_validation_info *ctx_node = sw_context->dx_ctx_node;
struct vmw_ctx_bindinfo_shader binding;
int ret = 0;
if (unlikely(ctx_node == NULL)) {
DRM_ERROR("DX Context not set.\n");
return -EINVAL;
}
cmd = container_of(header, typeof(*cmd), header);
if (cmd->body.type >= SVGA3D_SHADERTYPE_DX10_MAX) {
DRM_ERROR("Illegal shader type %u.\n",
(unsigned) 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)) {
DRM_ERROR("Could not find shader for binding.\n");
return PTR_ERR(res);
}
ret = vmw_execbuf_res_noctx_val_add(sw_context, res);
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 an
* 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 = sw_context->dx_ctx_node;
struct vmw_ctx_bindinfo_vb binding;
struct vmw_resource *res;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetVertexBuffers body;
SVGA3dVertexBuffer buf[];
} *cmd;
int i, ret, num;
if (unlikely(ctx_node == NULL)) {
DRM_ERROR("DX Context not set.\n");
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) {
DRM_ERROR("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,
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 an
* 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 = sw_context->dx_ctx_node;
struct vmw_ctx_bindinfo_ib binding;
struct vmw_resource *res;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetIndexBuffer body;
} *cmd;
int ret;
if (unlikely(ctx_node == NULL)) {
DRM_ERROR("DX Context not set.\n");
return -EINVAL;
}
cmd = container_of(header, typeof(*cmd), header);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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 an
* 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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetRenderTargets body;
} *cmd = container_of(header, typeof(*cmd), header);
int ret;
u32 num_rt_view = (cmd->header.size - sizeof(cmd->body)) /
sizeof(SVGA3dRenderTargetViewId);
if (num_rt_view > SVGA3D_MAX_SIMULTANEOUS_RENDER_TARGETS) {
DRM_ERROR("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 an
* 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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXClearRenderTargetView body;
} *cmd = 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 an
* 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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXClearDepthStencilView body;
} *cmd = 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 = sw_context->dx_ctx_node;
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 (unlikely(ctx_node == NULL)) {
DRM_ERROR("DX Context not set.\n");
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);
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
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 an
* 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 = sw_context->dx_ctx_node;
struct vmw_ctx_bindinfo_so binding;
struct vmw_resource *res;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetSOTargets body;
SVGA3dSoTarget targets[];
} *cmd;
int i, ret, num;
if (unlikely(ctx_node == NULL)) {
DRM_ERROR("DX Context not set.\n");
return -EINVAL;
}
cmd = container_of(header, typeof(*cmd), header);
num = (cmd->header.size - sizeof(cmd->body)) /
sizeof(SVGA3dSoTarget);
if (num > SVGA3D_DX_MAX_SOTARGETS) {
DRM_ERROR("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,
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 = sw_context->dx_ctx_node;
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 (unlikely(ctx_node == NULL)) {
DRM_ERROR("DX Context not set.\n");
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 an
* 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,
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 = sw_context->dx_ctx_node;
if (unlikely(ctx_node == NULL)) {
DRM_ERROR("DX Context not set.\n");
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 = sw_context->dx_ctx_node;
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) {
DRM_ERROR("DX Context not set.\n");
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 an 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 = sw_context->dx_ctx_node;
struct vmw_resource *res;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXDefineShader body;
} *cmd = container_of(header, typeof(*cmd), header);
int ret;
if (!ctx_node) {
DRM_ERROR("DX Context not set.\n");
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 an 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 = sw_context->dx_ctx_node;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXDestroyShader body;
} *cmd = container_of(header, typeof(*cmd), header);
int ret;
if (!ctx_node) {
DRM_ERROR("DX Context not set.\n");
return -EINVAL;
}
ret = vmw_shader_remove(sw_context->man, cmd->body.shaderId, 0,
&sw_context->staged_cmd_res);
if (ret)
DRM_ERROR("Could not find shader to remove.\n");
return ret;
}
/**
* vmw_cmd_dx_bind_shader - Validate an 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;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXBindShader body;
} *cmd = 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,
user_context_converter,
&cmd->body.cid, &ctx);
if (ret)
return ret;
} else {
if (!sw_context->dx_ctx_node) {
DRM_ERROR("DX Context not set.\n");
return -EINVAL;
}
ctx = sw_context->dx_ctx_node->ctx;
}
res = vmw_shader_lookup(vmw_context_res_man(ctx),
cmd->body.shid, 0);
if (IS_ERR(res)) {
DRM_ERROR("Could not find shader to bind.\n");
return PTR_ERR(res);
}
ret = vmw_execbuf_res_noctx_val_add(sw_context, res);
if (ret) {
DRM_ERROR("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 an 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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXGenMips body;
} *cmd = 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 an 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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXTransferFromBuffer body;
} *cmd = container_of(header, typeof(*cmd), header);
int ret;
ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.srcSid, NULL);
if (ret != 0)
return ret;
return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
user_surface_converter,
&cmd->body.destSid, NULL);
}
/**
* vmw_cmd_intra_surface_copy -
* Validate an 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)
{
struct {
SVGA3dCmdHeader header;
SVGA3dCmdIntraSurfaceCopy body;
} *cmd = 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,
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:
DRM_ERROR("Unsupported SVGA command: %u.\n", cmd_id);
return -EINVAL;
}
if (*size > size_remaining) {
DRM_ERROR("Invalid SVGA command (size mismatch):"
" %u.\n", cmd_id);
return -EINVAL;
}
if (unlikely(!sw_context->kernel)) {
DRM_ERROR("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),
/*
* DX 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))
goto out_invalid;
return 0;
out_invalid:
DRM_ERROR("Invalid SVGA3D command: %d\n",
cmd_id + SVGA_3D_CMD_BASE);
return -EINVAL;
out_privileged:
DRM_ERROR("Privileged SVGA3D command: %d\n",
cmd_id + SVGA_3D_CMD_BASE);
return -EPERM;
out_old:
DRM_ERROR("Deprecated (disallowed) SVGA3D command: %d\n",
cmd_id + SVGA_3D_CMD_BASE);
return -EINVAL;
out_new:
DRM_ERROR("SVGA3D command: %d not supported by virtual hardware.\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)) {
DRM_ERROR("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) {
DRM_ERROR("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)) {
DRM_ERROR("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 0;
}
/**
* 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.
*/
void
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 sync_file *sync_file)
{
struct drm_vmw_fence_rep fence_rep;
if (user_fence_rep == NULL)
return;
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)) {
if (sync_file)
fput(sync_file->file);
if (fence_rep.fd != -1) {
put_unused_fd(fence_rep.fd);
fence_rep.fd = -1;
}
ttm_ref_object_base_unref(vmw_fp->tfile,
fence_handle, TTM_REF_USAGE);
DRM_ERROR("Fence copy error. Syncing.\n");
(void) vmw_fence_obj_wait(fence, false, false,
VMW_FENCE_WAIT_TIMEOUT);
}
}
/**
* 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) {
DRM_ERROR("Failed reserving fifo space for commands.\n");
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) {
DRM_ERROR("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) {
DRM_ERROR("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 (unlikely(IS_ERR(res))) {
DRM_ERROR("Could not find or user DX context 0x%08x.\n",
(unsigned) handle);
return PTR_ERR(res);
}
ret = vmw_execbuf_res_noref_val_add(sw_context, res);
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;
int ret;
int32_t out_fence_fd = -1;
struct sync_file *sync_file = NULL;
DECLARE_VAL_CONTEXT(val_ctx, &sw_context->res_ht, 1);
if (flags & DRM_VMW_EXECBUF_FLAG_EXPORT_FENCE_FD) {
out_fence_fd = get_unused_fd_flags(O_CLOEXEC);
if (out_fence_fd < 0) {
DRM_ERROR("Failed to get a fence file descriptor.\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;
DRM_ERROR("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)
DRM_ERROR("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) {
DRM_ERROR("Unable to create sync file 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);
} else {
/* Link the fence with the FD created earlier */
fd_install(out_fence_fd, sync_file->file);
}
}
vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret,
user_fence_rep, fence, handle,
out_fence_fd, sync_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 0;
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)
{
DRM_ERROR("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, unsigned long data,
struct drm_file *file_priv, size_t size)
{
struct vmw_private *dev_priv = vmw_priv(dev);
struct drm_vmw_execbuf_arg arg;
int ret;
static const size_t copy_offset[] = {
offsetof(struct drm_vmw_execbuf_arg, context_handle),
sizeof(struct drm_vmw_execbuf_arg)};
struct dma_fence *in_fence = NULL;
if (unlikely(size < copy_offset[0])) {
DRM_ERROR("Invalid command size, ioctl %d\n",
DRM_VMW_EXECBUF);
return -EINVAL;
}
if (copy_from_user(&arg, (void __user *) data, copy_offset[0]) != 0)
return -EFAULT;
/*
* Extend the ioctl argument while
* maintaining backwards compatibility:
* We take different code paths depending on the value of
* arg.version.
*/
if (unlikely(arg.version > DRM_VMW_EXECBUF_VERSION ||
arg.version == 0)) {
DRM_ERROR("Incorrect execbuf version.\n");
return -EINVAL;
}
if (arg.version > 1 &&
copy_from_user(&arg.context_handle,
(void __user *) (data + copy_offset[0]),
copy_offset[arg.version - 1] -
copy_offset[0]) != 0)
return -EFAULT;
switch (arg.version) {
case 1:
arg.context_handle = (uint32_t) -1;
break;
case 2:
default:
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) {
DRM_ERROR("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;
}
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