SSL vmwgfx_binding.c
Interaktion und PortierbarkeitC
// SPDX-License-Identifier: GPL-2.0 OR MIT
/**************************************************************************
*
* Copyright 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 .
*
**************************************************************************/
/*
* This file implements the vmwgfx context binding manager ,
* The sole reason for having to use this code is that vmware guest
* backed contexts can be swapped out to their backing mobs by the device
* at any time , also swapped in at any time . At swapin time , the device
* validates the context bindings to make sure they point to valid resources .
* It ' s this outside - of - drawcall validation ( that can happen at any time ) ,
* that makes this code necessary .
*
* We therefore need to kill any context bindings pointing to a resource
* when the resource is swapped out . Furthermore , if the vmwgfx driver has
* swapped out the context we can ' t swap it in again to kill bindings because
* of backing mob reservation lockdep violations , so as part of
* context swapout , also kill all bindings of a context , so that they are
* already killed if a resource to which a binding points
* needs to be swapped out .
*
* Note that a resource can be pointed to by bindings from multiple contexts ,
* Therefore we can ' t easily protect this data by a per context mutex
* ( unless we use deadlock - safe WW mutexes ) . So we use a global binding_mutex
* to protect all binding manager data .
*
* Finally , any association between a context and a global resource
* ( surface , shader or even DX query ) is conceptually a context binding that
* needs to be tracked by this code .
*/
#include "vmwgfx_drv.h"
#include "vmwgfx_binding.h"
#include "device_include/svga3d_reg.h"
#include <linux/vmalloc.h>
#define VMW_BINDING_RT_BIT 0
#define VMW_BINDING_PS_BIT 1
#define VMW_BINDING_SO_T_BIT 2
#define VMW_BINDING_VB_BIT 3
#define VMW_BINDING_UAV_BIT 4
#define VMW_BINDING_CS_UAV_BIT 5
#define VMW_BINDING_NUM_BITS 6
#define VMW_BINDING_PS_SR_BIT 0
/**
* struct vmw_ctx_binding_state - per context binding state
*
* @ dev_priv : Pointer to device private structure .
* @ list : linked list of individual active bindings .
* @ render_targets : Render target bindings .
* @ texture_units : Texture units bindings .
* @ ds_view : Depth - stencil view binding .
* @ so_targets : StreamOutput target bindings .
* @ vertex_buffers : Vertex buffer bindings .
* @ index_buffer : Index buffer binding .
* @ per_shader : Per shader - type bindings .
* @ ua_views : UAV bindings .
* @ so_state : StreamOutput bindings .
* @ dirty : Bitmap tracking per binding - type changes that have not yet
* been emitted to the device .
* @ dirty_vb : Bitmap tracking individual vertex buffer binding changes that
* have not yet been emitted to the device .
* @ bind_cmd_buffer : Scratch space used to construct binding commands .
* @ bind_cmd_count : Number of binding command data entries in @ bind_cmd_buffer
* @ bind_first_slot : Used together with @ bind_cmd_buffer to indicate the
* device binding slot of the first command data entry in @ bind_cmd_buffer .
*
* Note that this structure also provides storage space for the individual
* struct vmw_ctx_binding objects , so that no dynamic allocation is needed
* for individual bindings .
*
*/
struct vmw_ctx_binding_state {
struct vmw_private *dev_priv;
struct list_head list;
struct vmw_ctx_bindinfo_view render_targets[SVGA3D_RT_MAX];
struct vmw_ctx_bindinfo_tex texture_units[SVGA3D_NUM_TEXTURE_UNITS];
struct vmw_ctx_bindinfo_view ds_view;
struct vmw_ctx_bindinfo_so_target so_targets[SVGA3D_DX_MAX_SOTARGETS];
struct vmw_ctx_bindinfo_vb vertex_buffers[SVGA3D_DX_MAX_VERTEXBUFFERS];
struct vmw_ctx_bindinfo_ib index_buffer;
struct vmw_dx_shader_bindings per_shader[SVGA3D_NUM_SHADERTYPE];
struct vmw_ctx_bindinfo_uav ua_views[VMW_MAX_UAV_BIND_TYPE];
struct vmw_ctx_bindinfo_so so_state;
unsigned long dirty;
DECLARE_BITMAP(dirty_vb, SVGA3D_DX_MAX_VERTEXBUFFERS);
u32 bind_cmd_buffer[VMW_MAX_VIEW_BINDINGS];
u32 bind_cmd_count;
u32 bind_first_slot;
};
static int vmw_binding_scrub_shader(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_scrub_render_target(struct vmw_ctx_bindinfo *bi,
bool rebind);
static int vmw_binding_scrub_texture(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_scrub_cb(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_scrub_dx_rt(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_scrub_sr(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_scrub_so_target(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_emit_dirty(struct vmw_ctx_binding_state *cbs);
static int vmw_binding_scrub_dx_shader(struct vmw_ctx_bindinfo *bi,
bool rebind);
static int vmw_binding_scrub_ib(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_scrub_vb(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_scrub_uav(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_scrub_cs_uav(struct vmw_ctx_bindinfo *bi, bool rebind);
static int vmw_binding_scrub_so(struct vmw_ctx_bindinfo *bi, bool rebind);
static void vmw_binding_build_asserts(void ) __attribute__ ((unused));
typedef int (*vmw_scrub_func)(struct vmw_ctx_bindinfo *, bool );
/**
* struct vmw_binding_info - Per binding type information for the binding
* manager
*
* @ size : The size of the struct binding derived from a struct vmw_ctx_bindinfo .
* @ offsets : array [ shader_slot ] of offsets to the array [ slot ]
* of struct bindings for the binding type .
* @ scrub_func : Pointer to the scrub function for this binding type .
*
* Holds static information to help optimize the binding manager and avoid
* an excessive amount of switch statements .
*/
struct vmw_binding_info {
size_t size;
const size_t *offsets;
vmw_scrub_func scrub_func;
};
/*
* A number of static variables that help determine the scrub func and the
* location of the struct vmw_ctx_bindinfo slots for each binding type .
*/
static const size_t vmw_binding_shader_offsets[] = {
offsetof(struct vmw_ctx_binding_state, per_shader[0 ].shader),
offsetof(struct vmw_ctx_binding_state, per_shader[1 ].shader),
offsetof(struct vmw_ctx_binding_state, per_shader[2 ].shader),
offsetof(struct vmw_ctx_binding_state, per_shader[3 ].shader),
offsetof(struct vmw_ctx_binding_state, per_shader[4 ].shader),
offsetof(struct vmw_ctx_binding_state, per_shader[5 ].shader),
};
static const size_t vmw_binding_rt_offsets[] = {
offsetof(struct vmw_ctx_binding_state, render_targets),
};
static const size_t vmw_binding_tex_offsets[] = {
offsetof(struct vmw_ctx_binding_state, texture_units),
};
static const size_t vmw_binding_cb_offsets[] = {
offsetof(struct vmw_ctx_binding_state, per_shader[0 ].const_buffers),
offsetof(struct vmw_ctx_binding_state, per_shader[1 ].const_buffers),
offsetof(struct vmw_ctx_binding_state, per_shader[2 ].const_buffers),
offsetof(struct vmw_ctx_binding_state, per_shader[3 ].const_buffers),
offsetof(struct vmw_ctx_binding_state, per_shader[4 ].const_buffers),
offsetof(struct vmw_ctx_binding_state, per_shader[5 ].const_buffers),
};
static const size_t vmw_binding_dx_ds_offsets[] = {
offsetof(struct vmw_ctx_binding_state, ds_view),
};
static const size_t vmw_binding_sr_offsets[] = {
offsetof(struct vmw_ctx_binding_state, per_shader[0 ].shader_res),
offsetof(struct vmw_ctx_binding_state, per_shader[1 ].shader_res),
offsetof(struct vmw_ctx_binding_state, per_shader[2 ].shader_res),
offsetof(struct vmw_ctx_binding_state, per_shader[3 ].shader_res),
offsetof(struct vmw_ctx_binding_state, per_shader[4 ].shader_res),
offsetof(struct vmw_ctx_binding_state, per_shader[5 ].shader_res),
};
static const size_t vmw_binding_so_target_offsets[] = {
offsetof(struct vmw_ctx_binding_state, so_targets),
};
static const size_t vmw_binding_vb_offsets[] = {
offsetof(struct vmw_ctx_binding_state, vertex_buffers),
};
static const size_t vmw_binding_ib_offsets[] = {
offsetof(struct vmw_ctx_binding_state, index_buffer),
};
static const size_t vmw_binding_uav_offsets[] = {
offsetof(struct vmw_ctx_binding_state, ua_views[0 ].views),
};
static const size_t vmw_binding_cs_uav_offsets[] = {
offsetof(struct vmw_ctx_binding_state, ua_views[1 ].views),
};
static const size_t vmw_binding_so_offsets[] = {
offsetof(struct vmw_ctx_binding_state, so_state),
};
static const struct vmw_binding_info vmw_binding_infos[] = {
[vmw_ctx_binding_shader] = {
.size = sizeof (struct vmw_ctx_bindinfo_shader),
.offsets = vmw_binding_shader_offsets,
.scrub_func = vmw_binding_scrub_shader},
[vmw_ctx_binding_rt] = {
.size = sizeof (struct vmw_ctx_bindinfo_view),
.offsets = vmw_binding_rt_offsets,
.scrub_func = vmw_binding_scrub_render_target},
[vmw_ctx_binding_tex] = {
.size = sizeof (struct vmw_ctx_bindinfo_tex),
.offsets = vmw_binding_tex_offsets,
.scrub_func = vmw_binding_scrub_texture},
[vmw_ctx_binding_cb] = {
.size = sizeof (struct vmw_ctx_bindinfo_cb),
.offsets = vmw_binding_cb_offsets,
.scrub_func = vmw_binding_scrub_cb},
[vmw_ctx_binding_dx_shader] = {
.size = sizeof (struct vmw_ctx_bindinfo_shader),
.offsets = vmw_binding_shader_offsets,
.scrub_func = vmw_binding_scrub_dx_shader},
[vmw_ctx_binding_dx_rt] = {
.size = sizeof (struct vmw_ctx_bindinfo_view),
.offsets = vmw_binding_rt_offsets,
.scrub_func = vmw_binding_scrub_dx_rt},
[vmw_ctx_binding_sr] = {
.size = sizeof (struct vmw_ctx_bindinfo_view),
.offsets = vmw_binding_sr_offsets,
.scrub_func = vmw_binding_scrub_sr},
[vmw_ctx_binding_ds] = {
.size = sizeof (struct vmw_ctx_bindinfo_view),
.offsets = vmw_binding_dx_ds_offsets,
.scrub_func = vmw_binding_scrub_dx_rt},
[vmw_ctx_binding_so_target] = {
.size = sizeof (struct vmw_ctx_bindinfo_so_target),
.offsets = vmw_binding_so_target_offsets,
.scrub_func = vmw_binding_scrub_so_target},
[vmw_ctx_binding_vb] = {
.size = sizeof (struct vmw_ctx_bindinfo_vb),
.offsets = vmw_binding_vb_offsets,
.scrub_func = vmw_binding_scrub_vb},
[vmw_ctx_binding_ib] = {
.size = sizeof (struct vmw_ctx_bindinfo_ib),
.offsets = vmw_binding_ib_offsets,
.scrub_func = vmw_binding_scrub_ib},
[vmw_ctx_binding_uav] = {
.size = sizeof (struct vmw_ctx_bindinfo_view),
.offsets = vmw_binding_uav_offsets,
.scrub_func = vmw_binding_scrub_uav},
[vmw_ctx_binding_cs_uav] = {
.size = sizeof (struct vmw_ctx_bindinfo_view),
.offsets = vmw_binding_cs_uav_offsets,
.scrub_func = vmw_binding_scrub_cs_uav},
[vmw_ctx_binding_so] = {
.size = sizeof (struct vmw_ctx_bindinfo_so),
.offsets = vmw_binding_so_offsets,
.scrub_func = vmw_binding_scrub_so},
};
/**
* vmw_cbs_context - Return a pointer to the context resource of a
* context binding state tracker .
*
* @ cbs : The context binding state tracker .
*
* Provided there are any active bindings , this function will return an
* unreferenced pointer to the context resource that owns the context
* binding state tracker . If there are no active bindings , this function
* will return NULL . Note that the caller must somehow ensure that a reference
* is held on the context resource prior to calling this function .
*/
static const struct vmw_resource *
vmw_cbs_context(const struct vmw_ctx_binding_state *cbs)
{
if (list_empty(&cbs->list))
return NULL;
return list_first_entry(&cbs->list, struct vmw_ctx_bindinfo,
ctx_list)->ctx;
}
/**
* vmw_binding_loc - determine the struct vmw_ctx_bindinfo slot location .
*
* @ cbs : Pointer to a struct vmw_ctx_binding state which holds the slot .
* @ bt : The binding type .
* @ shader_slot : The shader slot of the binding . If none , then set to 0 .
* @ slot : The slot of the binding .
*/
static struct vmw_ctx_bindinfo *
vmw_binding_loc(struct vmw_ctx_binding_state *cbs,
enum vmw_ctx_binding_type bt, u32 shader_slot, u32 slot)
{
const struct vmw_binding_info *b = &vmw_binding_infos[bt];
size_t offset = b->offsets[shader_slot] + b->size*slot;
return (struct vmw_ctx_bindinfo *)((u8 *) cbs + offset);
}
/**
* vmw_binding_drop : Stop tracking a context binding
*
* @ bi : Pointer to binding tracker storage .
*
* Stops tracking a context binding , and re - initializes its storage .
* Typically used when the context binding is replaced with a binding to
* another ( or the same , for that matter ) resource .
*/
static void vmw_binding_drop(struct vmw_ctx_bindinfo *bi)
{
list_del(&bi->ctx_list);
if (!list_empty(&bi->res_list))
list_del(&bi->res_list);
bi->ctx = NULL;
}
/**
* vmw_binding_add : Start tracking a context binding
*
* @ cbs : Pointer to the context binding state tracker .
* @ bi : Information about the binding to track .
* @ shader_slot : The shader slot of the binding .
* @ slot : The slot of the binding .
*
* Starts tracking the binding in the context binding
* state structure @ cbs .
*/
void vmw_binding_add(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_bindinfo *bi,
u32 shader_slot, u32 slot)
{
struct vmw_ctx_bindinfo *loc =
vmw_binding_loc(cbs, bi->bt, shader_slot, slot);
const struct vmw_binding_info *b = &vmw_binding_infos[bi->bt];
if (loc->ctx != NULL)
vmw_binding_drop(loc);
memcpy(loc, bi, b->size);
loc->scrubbed = false ;
list_add(&loc->ctx_list, &cbs->list);
INIT_LIST_HEAD(&loc->res_list);
}
/**
* vmw_binding_cb_offset_update : Update the offset of a cb binding
*
* @ cbs : Pointer to the context binding state tracker .
* @ shader_slot : The shader slot of the binding .
* @ slot : The slot of the binding .
* @ offsetInBytes : The new offset of the binding .
*
* Updates the offset of an existing cb binding in the context binding
* state structure @ cbs .
*/
void vmw_binding_cb_offset_update(struct vmw_ctx_binding_state *cbs,
u32 shader_slot, u32 slot, u32 offsetInBytes)
{
struct vmw_ctx_bindinfo *loc =
vmw_binding_loc(cbs, vmw_ctx_binding_cb, shader_slot, slot);
struct vmw_ctx_bindinfo_cb *loc_cb =
(struct vmw_ctx_bindinfo_cb *)((u8 *) loc);
loc_cb->offset = offsetInBytes;
}
/**
* vmw_binding_add_uav_index - Add UAV index for tracking .
* @ cbs : Pointer to the context binding state tracker .
* @ slot : UAV type to which bind this index .
* @ index : The splice index to track .
*/
void vmw_binding_add_uav_index(struct vmw_ctx_binding_state *cbs, uint32 slot,
uint32 index)
{
cbs->ua_views[slot].index = index;
}
/**
* vmw_binding_transfer : Transfer a context binding tracking entry .
*
* @ cbs : Pointer to the persistent context binding state tracker .
* @ from : Staged binding info built during execbuf
* @ bi : Information about the binding to track .
*
*/
static void vmw_binding_transfer(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_binding_state *from,
const struct vmw_ctx_bindinfo *bi)
{
size_t offset = (unsigned long )bi - (unsigned long )from;
struct vmw_ctx_bindinfo *loc = (struct vmw_ctx_bindinfo *)
((unsigned long ) cbs + offset);
if (loc->ctx != NULL) {
WARN_ON(bi->scrubbed);
vmw_binding_drop(loc);
}
if (bi->res != NULL) {
memcpy(loc, bi, vmw_binding_infos[bi->bt].size);
list_add_tail(&loc->ctx_list, &cbs->list);
list_add_tail(&loc->res_list, &loc->res->binding_head);
}
}
/**
* vmw_binding_state_kill - Kill all bindings associated with a
* struct vmw_ctx_binding state structure , and re - initialize the structure .
*
* @ cbs : Pointer to the context binding state tracker .
*
* Emits commands to scrub all bindings associated with the
* context binding state tracker . Then re - initializes the whole structure .
*/
void vmw_binding_state_kill(struct vmw_ctx_binding_state *cbs)
{
struct vmw_ctx_bindinfo *entry, *next;
vmw_binding_state_scrub(cbs);
list_for_each_entry_safe(entry, next, &cbs->list, ctx_list)
vmw_binding_drop(entry);
}
/**
* vmw_binding_state_scrub - Scrub all bindings associated with a
* struct vmw_ctx_binding state structure .
*
* @ cbs : Pointer to the context binding state tracker .
*
* Emits commands to scrub all bindings associated with the
* context binding state tracker .
*/
void vmw_binding_state_scrub(struct vmw_ctx_binding_state *cbs)
{
struct vmw_ctx_bindinfo *entry;
list_for_each_entry(entry, &cbs->list, ctx_list) {
if (!entry->scrubbed) {
(void ) vmw_binding_infos[entry->bt].scrub_func
(entry, false );
entry->scrubbed = true ;
}
}
(void ) vmw_binding_emit_dirty(cbs);
}
/**
* vmw_binding_res_list_kill - Kill all bindings on a
* resource binding list
*
* @ head : list head of resource binding list
*
* Kills all bindings associated with a specific resource . Typically
* called before the resource is destroyed .
*/
void vmw_binding_res_list_kill(struct list_head *head)
{
struct vmw_ctx_bindinfo *entry, *next;
vmw_binding_res_list_scrub(head);
list_for_each_entry_safe(entry, next, head, res_list)
vmw_binding_drop(entry);
}
/**
* vmw_binding_res_list_scrub - Scrub all bindings on a
* resource binding list
*
* @ head : list head of resource binding list
*
* Scrub all bindings associated with a specific resource . Typically
* called before the resource is evicted .
*/
void vmw_binding_res_list_scrub(struct list_head *head)
{
struct vmw_ctx_bindinfo *entry;
list_for_each_entry(entry, head, res_list) {
if (!entry->scrubbed) {
(void ) vmw_binding_infos[entry->bt].scrub_func
(entry, false );
entry->scrubbed = true ;
}
}
list_for_each_entry(entry, head, res_list) {
struct vmw_ctx_binding_state *cbs =
vmw_context_binding_state(entry->ctx);
(void ) vmw_binding_emit_dirty(cbs);
}
}
/**
* vmw_binding_state_commit - Commit staged binding info
*
* @ to : Staged binding info area to copy into to .
* @ from : Staged binding info built during execbuf .
*
* Transfers binding info from a temporary structure
* ( typically used by execbuf ) to the persistent
* structure in the context . This can be done once commands have been
* submitted to hardware
*/
void vmw_binding_state_commit(struct vmw_ctx_binding_state *to,
struct vmw_ctx_binding_state *from)
{
struct vmw_ctx_bindinfo *entry, *next;
list_for_each_entry_safe(entry, next, &from->list, ctx_list) {
vmw_binding_transfer(to, from, entry);
vmw_binding_drop(entry);
}
/* Also transfer uav splice indices */
to->ua_views[0 ].index = from->ua_views[0 ].index;
to->ua_views[1 ].index = from->ua_views[1 ].index;
}
/**
* vmw_binding_rebind_all - Rebind all scrubbed bindings of a context
*
* @ cbs : Pointer to the context binding state tracker .
*
* Walks through the context binding list and rebinds all scrubbed
* resources .
*/
int vmw_binding_rebind_all(struct vmw_ctx_binding_state *cbs)
{
struct vmw_ctx_bindinfo *entry;
int ret;
list_for_each_entry(entry, &cbs->list, ctx_list) {
if (likely(!entry->scrubbed))
continue ;
if ((entry->res == NULL || entry->res->id ==
SVGA3D_INVALID_ID))
continue ;
ret = vmw_binding_infos[entry->bt].scrub_func(entry, true );
if (unlikely(ret != 0 ))
return ret;
entry->scrubbed = false ;
}
return vmw_binding_emit_dirty(cbs);
}
/**
* vmw_binding_scrub_shader - scrub a shader binding from a context .
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_shader(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_bindinfo_shader *binding =
container_of(bi, typeof(*binding), bi);
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdSetShader body;
} *cmd;
cmd = VMW_CMD_RESERVE(dev_priv, sizeof (*cmd));
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_SET_SHADER;
cmd->header.size = sizeof (cmd->body);
cmd->body.cid = bi->ctx->id;
cmd->body.type = binding->shader_slot + SVGA3D_SHADERTYPE_MIN;
cmd->body.shid = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
vmw_cmd_commit(dev_priv, sizeof (*cmd));
return 0 ;
}
/**
* vmw_binding_scrub_render_target - scrub a render target binding
* from a context .
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_render_target(struct vmw_ctx_bindinfo *bi,
bool rebind)
{
struct vmw_ctx_bindinfo_view *binding =
container_of(bi, typeof(*binding), bi);
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdSetRenderTarget body;
} *cmd;
cmd = VMW_CMD_RESERVE(dev_priv, sizeof (*cmd));
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_SETRENDERTARGET;
cmd->header.size = sizeof (cmd->body);
cmd->body.cid = bi->ctx->id;
cmd->body.type = binding->slot;
cmd->body.target.sid = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
cmd->body.target.face = 0 ;
cmd->body.target.mipmap = 0 ;
vmw_cmd_commit(dev_priv, sizeof (*cmd));
return 0 ;
}
/**
* vmw_binding_scrub_texture - scrub a texture binding from a context .
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*
* TODO : Possibly complement this function with a function that takes
* a list of texture bindings and combines them to a single command .
*/
static int vmw_binding_scrub_texture(struct vmw_ctx_bindinfo *bi,
bool rebind)
{
struct vmw_ctx_bindinfo_tex *binding =
container_of(bi, typeof(*binding), bi);
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
struct {
SVGA3dCmdSetTextureState c;
SVGA3dTextureState s1;
} body;
} *cmd;
cmd = VMW_CMD_RESERVE(dev_priv, sizeof (*cmd));
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_SETTEXTURESTATE;
cmd->header.size = sizeof (cmd->body);
cmd->body.c.cid = bi->ctx->id;
cmd->body.s1.stage = binding->texture_stage;
cmd->body.s1.name = SVGA3D_TS_BIND_TEXTURE;
cmd->body.s1.value = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
vmw_cmd_commit(dev_priv, sizeof (*cmd));
return 0 ;
}
/**
* vmw_binding_scrub_dx_shader - scrub a dx shader binding from a context .
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_dx_shader(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_bindinfo_shader *binding =
container_of(bi, typeof(*binding), bi);
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetShader body;
} *cmd;
cmd = VMW_CMD_CTX_RESERVE(dev_priv, sizeof (*cmd), bi->ctx->id);
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_SHADER;
cmd->header.size = sizeof (cmd->body);
cmd->body.type = binding->shader_slot + SVGA3D_SHADERTYPE_MIN;
cmd->body.shaderId = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID);
vmw_cmd_commit(dev_priv, sizeof (*cmd));
return 0 ;
}
/**
* vmw_binding_scrub_cb - scrub a constant buffer binding from a context .
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_cb(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_bindinfo_cb *binding =
container_of(bi, typeof(*binding), bi);
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetSingleConstantBuffer body;
} *cmd;
cmd = VMW_CMD_CTX_RESERVE(dev_priv, sizeof (*cmd), bi->ctx->id);
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_SINGLE_CONSTANT_BUFFER;
cmd->header.size = sizeof (cmd->body);
cmd->body.slot = binding->slot;
cmd->body.type = binding->shader_slot + SVGA3D_SHADERTYPE_MIN;
if (rebind) {
cmd->body.offsetInBytes = binding->offset;
cmd->body.sizeInBytes = binding->size;
cmd->body.sid = bi->res->id;
} else {
cmd->body.offsetInBytes = 0 ;
cmd->body.sizeInBytes = 0 ;
cmd->body.sid = SVGA3D_INVALID_ID;
}
vmw_cmd_commit(dev_priv, sizeof (*cmd));
return 0 ;
}
/**
* vmw_collect_view_ids - Build view id data for a view binding command
* without checking which bindings actually need to be emitted
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
* @ biv : Pointer to where the binding info array is stored in @ cbs
* @ max_num : Maximum number of entries in the @ bi array .
*
* Scans the @ bi array for bindings and builds a buffer of view id data .
* Stops at the first non - existing binding in the @ bi array .
* On output , @ cbs - > bind_cmd_count contains the number of bindings to be
* emitted , @ cbs - > bind_first_slot is set to zero , and @ cbs - > bind_cmd_buffer
* contains the command data .
*/
static void vmw_collect_view_ids(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_bindinfo_view *biv,
u32 max_num)
{
unsigned long i;
cbs->bind_cmd_count = 0 ;
cbs->bind_first_slot = 0 ;
for (i = 0 ; i < max_num; ++i, ++biv) {
if (!biv->bi.ctx)
break ;
cbs->bind_cmd_buffer[cbs->bind_cmd_count++] =
((biv->bi.scrubbed) ?
SVGA3D_INVALID_ID : biv->bi.res->id);
}
}
/**
* vmw_collect_dirty_view_ids - Build view id data for a view binding command
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
* @ bi : Pointer to where the binding info array is stored in @ cbs
* @ dirty : Bitmap indicating which bindings need to be emitted .
* @ max_num : Maximum number of entries in the @ bi array .
*
* Scans the @ bi array for bindings that need to be emitted and
* builds a buffer of view id data .
* On output , @ cbs - > bind_cmd_count contains the number of bindings to be
* emitted , @ cbs - > bind_first_slot indicates the index of the first emitted
* binding , and @ cbs - > bind_cmd_buffer contains the command data .
*/
static void vmw_collect_dirty_view_ids(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_bindinfo *bi,
unsigned long *dirty,
u32 max_num)
{
const struct vmw_ctx_bindinfo_view *biv =
container_of(bi, struct vmw_ctx_bindinfo_view, bi);
unsigned long i, next_bit;
cbs->bind_cmd_count = 0 ;
i = find_first_bit(dirty, max_num);
next_bit = i;
cbs->bind_first_slot = i;
biv += i;
for (; i < max_num; ++i, ++biv) {
cbs->bind_cmd_buffer[cbs->bind_cmd_count++] =
((!biv->bi.ctx || biv->bi.scrubbed) ?
SVGA3D_INVALID_ID : biv->bi.res->id);
if (next_bit == i) {
next_bit = find_next_bit(dirty, max_num, i + 1 );
if (next_bit >= max_num)
break ;
}
}
}
/**
* vmw_emit_set_sr - Issue delayed DX shader resource binding commands
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
* @ shader_slot : The shader slot of the binding .
*/
static int vmw_emit_set_sr(struct vmw_ctx_binding_state *cbs,
int shader_slot)
{
const struct vmw_ctx_bindinfo *loc =
&cbs->per_shader[shader_slot].shader_res[0 ].bi;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetShaderResources body;
} *cmd;
size_t cmd_size, view_id_size;
const struct vmw_resource *ctx = vmw_cbs_context(cbs);
vmw_collect_dirty_view_ids(cbs, loc,
cbs->per_shader[shader_slot].dirty_sr,
SVGA3D_DX_MAX_SRVIEWS);
if (cbs->bind_cmd_count == 0 )
return 0 ;
view_id_size = cbs->bind_cmd_count*sizeof (uint32);
cmd_size = sizeof (*cmd) + view_id_size;
cmd = VMW_CMD_CTX_RESERVE(ctx->dev_priv, cmd_size, ctx->id);
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_SHADER_RESOURCES;
cmd->header.size = sizeof (cmd->body) + view_id_size;
cmd->body.type = shader_slot + SVGA3D_SHADERTYPE_MIN;
cmd->body.startView = cbs->bind_first_slot;
memcpy(&cmd[1 ], cbs->bind_cmd_buffer, view_id_size);
vmw_cmd_commit(ctx->dev_priv, cmd_size);
bitmap_clear(cbs->per_shader[shader_slot].dirty_sr,
cbs->bind_first_slot, cbs->bind_cmd_count);
return 0 ;
}
/**
* vmw_emit_set_rt - Issue delayed DX rendertarget binding commands
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
*/
static int vmw_emit_set_rt(struct vmw_ctx_binding_state *cbs)
{
const struct vmw_ctx_bindinfo_view *loc = &cbs->render_targets[0 ];
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetRenderTargets body;
} *cmd;
size_t cmd_size, view_id_size;
const struct vmw_resource *ctx = vmw_cbs_context(cbs);
vmw_collect_view_ids(cbs, loc, SVGA3D_DX_MAX_RENDER_TARGETS);
view_id_size = cbs->bind_cmd_count*sizeof (uint32);
cmd_size = sizeof (*cmd) + view_id_size;
cmd = VMW_CMD_CTX_RESERVE(ctx->dev_priv, cmd_size, ctx->id);
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_RENDERTARGETS;
cmd->header.size = sizeof (cmd->body) + view_id_size;
if (cbs->ds_view.bi.ctx && !cbs->ds_view.bi.scrubbed)
cmd->body.depthStencilViewId = cbs->ds_view.bi.res->id;
else
cmd->body.depthStencilViewId = SVGA3D_INVALID_ID;
memcpy(&cmd[1 ], cbs->bind_cmd_buffer, view_id_size);
vmw_cmd_commit(ctx->dev_priv, cmd_size);
return 0 ;
}
/**
* vmw_collect_so_targets - Build SVGA3dSoTarget data for a binding command
* without checking which bindings actually need to be emitted
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
* @ biso : Pointer to where the binding info array is stored in @ cbs
* @ max_num : Maximum number of entries in the @ bi array .
*
* Scans the @ bi array for bindings and builds a buffer of SVGA3dSoTarget data .
* Stops at the first non - existing binding in the @ bi array .
* On output , @ cbs - > bind_cmd_count contains the number of bindings to be
* emitted , @ cbs - > bind_first_slot is set to zero , and @ cbs - > bind_cmd_buffer
* contains the command data .
*/
static void vmw_collect_so_targets(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_bindinfo_so_target *biso,
u32 max_num)
{
unsigned long i;
SVGA3dSoTarget *so_buffer = (SVGA3dSoTarget *) cbs->bind_cmd_buffer;
cbs->bind_cmd_count = 0 ;
cbs->bind_first_slot = 0 ;
for (i = 0 ; i < max_num; ++i, ++biso, ++so_buffer,
++cbs->bind_cmd_count) {
if (!biso->bi.ctx)
break ;
if (!biso->bi.scrubbed) {
so_buffer->sid = biso->bi.res->id;
so_buffer->offset = biso->offset;
so_buffer->sizeInBytes = biso->size;
} else {
so_buffer->sid = SVGA3D_INVALID_ID;
so_buffer->offset = 0 ;
so_buffer->sizeInBytes = 0 ;
}
}
}
/**
* vmw_emit_set_so_target - Issue delayed streamout binding commands
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
*/
static int vmw_emit_set_so_target(struct vmw_ctx_binding_state *cbs)
{
const struct vmw_ctx_bindinfo_so_target *loc = &cbs->so_targets[0 ];
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetSOTargets body;
} *cmd;
size_t cmd_size, so_target_size;
const struct vmw_resource *ctx = vmw_cbs_context(cbs);
vmw_collect_so_targets(cbs, loc, SVGA3D_DX_MAX_SOTARGETS);
if (cbs->bind_cmd_count == 0 )
return 0 ;
so_target_size = cbs->bind_cmd_count*sizeof (SVGA3dSoTarget);
cmd_size = sizeof (*cmd) + so_target_size;
cmd = VMW_CMD_CTX_RESERVE(ctx->dev_priv, cmd_size, ctx->id);
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_SOTARGETS;
cmd->header.size = sizeof (cmd->body) + so_target_size;
memcpy(&cmd[1 ], cbs->bind_cmd_buffer, so_target_size);
vmw_cmd_commit(ctx->dev_priv, cmd_size);
return 0 ;
}
/**
* vmw_binding_emit_dirty_ps - Issue delayed per shader binding commands
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
*
*/
static int vmw_binding_emit_dirty_ps(struct vmw_ctx_binding_state *cbs)
{
struct vmw_dx_shader_bindings *sb = &cbs->per_shader[0 ];
u32 i;
int ret;
for (i = 0 ; i < SVGA3D_NUM_SHADERTYPE_DX10; ++i, ++sb) {
if (!test_bit(VMW_BINDING_PS_SR_BIT, &sb->dirty))
continue ;
ret = vmw_emit_set_sr(cbs, i);
if (ret)
break ;
__clear_bit(VMW_BINDING_PS_SR_BIT, &sb->dirty);
}
return 0 ;
}
/**
* vmw_collect_dirty_vbs - Build SVGA3dVertexBuffer data for a
* SVGA3dCmdDXSetVertexBuffers command
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
* @ bi : Pointer to where the binding info array is stored in @ cbs
* @ dirty : Bitmap indicating which bindings need to be emitted .
* @ max_num : Maximum number of entries in the @ bi array .
*
* Scans the @ bi array for bindings that need to be emitted and
* builds a buffer of SVGA3dVertexBuffer data .
* On output , @ cbs - > bind_cmd_count contains the number of bindings to be
* emitted , @ cbs - > bind_first_slot indicates the index of the first emitted
* binding , and @ cbs - > bind_cmd_buffer contains the command data .
*/
static void vmw_collect_dirty_vbs(struct vmw_ctx_binding_state *cbs,
const struct vmw_ctx_bindinfo *bi,
unsigned long *dirty,
u32 max_num)
{
const struct vmw_ctx_bindinfo_vb *biv =
container_of(bi, struct vmw_ctx_bindinfo_vb, bi);
unsigned long i, next_bit;
SVGA3dVertexBuffer *vbs = (SVGA3dVertexBuffer *) &cbs->bind_cmd_buffer;
cbs->bind_cmd_count = 0 ;
i = find_first_bit(dirty, max_num);
next_bit = i;
cbs->bind_first_slot = i;
biv += i;
for (; i < max_num; ++i, ++biv, ++vbs) {
if (!biv->bi.ctx || biv->bi.scrubbed) {
vbs->sid = SVGA3D_INVALID_ID;
vbs->stride = 0 ;
vbs->offset = 0 ;
} else {
vbs->sid = biv->bi.res->id;
vbs->stride = biv->stride;
vbs->offset = biv->offset;
}
cbs->bind_cmd_count++;
if (next_bit == i) {
next_bit = find_next_bit(dirty, max_num, i + 1 );
if (next_bit >= max_num)
break ;
}
}
}
/**
* vmw_emit_set_vb - Issue delayed vertex buffer binding commands
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
*
*/
static int vmw_emit_set_vb(struct vmw_ctx_binding_state *cbs)
{
const struct vmw_ctx_bindinfo *loc =
&cbs->vertex_buffers[0 ].bi;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetVertexBuffers body;
} *cmd;
size_t cmd_size, set_vb_size;
const struct vmw_resource *ctx = vmw_cbs_context(cbs);
vmw_collect_dirty_vbs(cbs, loc, cbs->dirty_vb,
SVGA3D_DX_MAX_VERTEXBUFFERS);
if (cbs->bind_cmd_count == 0 )
return 0 ;
set_vb_size = cbs->bind_cmd_count*sizeof (SVGA3dVertexBuffer);
cmd_size = sizeof (*cmd) + set_vb_size;
cmd = VMW_CMD_CTX_RESERVE(ctx->dev_priv, cmd_size, ctx->id);
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_VERTEX_BUFFERS;
cmd->header.size = sizeof (cmd->body) + set_vb_size;
cmd->body.startBuffer = cbs->bind_first_slot;
memcpy(&cmd[1 ], cbs->bind_cmd_buffer, set_vb_size);
vmw_cmd_commit(ctx->dev_priv, cmd_size);
bitmap_clear(cbs->dirty_vb,
cbs->bind_first_slot, cbs->bind_cmd_count);
return 0 ;
}
static int vmw_emit_set_uav(struct vmw_ctx_binding_state *cbs)
{
const struct vmw_ctx_bindinfo_view *loc = &cbs->ua_views[0 ].views[0 ];
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetUAViews body;
} *cmd;
size_t cmd_size, view_id_size;
const struct vmw_resource *ctx = vmw_cbs_context(cbs);
vmw_collect_view_ids(cbs, loc, vmw_max_num_uavs(cbs->dev_priv));
view_id_size = cbs->bind_cmd_count*sizeof (uint32);
cmd_size = sizeof (*cmd) + view_id_size;
cmd = VMW_CMD_CTX_RESERVE(ctx->dev_priv, cmd_size, ctx->id);
if (!cmd)
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_UA_VIEWS;
cmd->header.size = sizeof (cmd->body) + view_id_size;
/* Splice index is specified user-space */
cmd->body.uavSpliceIndex = cbs->ua_views[0 ].index;
memcpy(&cmd[1 ], cbs->bind_cmd_buffer, view_id_size);
vmw_cmd_commit(ctx->dev_priv, cmd_size);
return 0 ;
}
static int vmw_emit_set_cs_uav(struct vmw_ctx_binding_state *cbs)
{
const struct vmw_ctx_bindinfo_view *loc = &cbs->ua_views[1 ].views[0 ];
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetCSUAViews body;
} *cmd;
size_t cmd_size, view_id_size;
const struct vmw_resource *ctx = vmw_cbs_context(cbs);
vmw_collect_view_ids(cbs, loc, vmw_max_num_uavs(cbs->dev_priv));
view_id_size = cbs->bind_cmd_count*sizeof (uint32);
cmd_size = sizeof (*cmd) + view_id_size;
cmd = VMW_CMD_CTX_RESERVE(ctx->dev_priv, cmd_size, ctx->id);
if (!cmd)
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_CS_UA_VIEWS;
cmd->header.size = sizeof (cmd->body) + view_id_size;
/* Start index is specified user-space */
cmd->body.startIndex = cbs->ua_views[1 ].index;
memcpy(&cmd[1 ], cbs->bind_cmd_buffer, view_id_size);
vmw_cmd_commit(ctx->dev_priv, cmd_size);
return 0 ;
}
/**
* vmw_binding_emit_dirty - Issue delayed binding commands
*
* @ cbs : Pointer to the context ' s struct vmw_ctx_binding_state
*
* This function issues the delayed binding commands that arise from
* previous scrub / unscrub calls . These binding commands are typically
* commands that batch a number of bindings and therefore it makes sense
* to delay them .
*/
static int vmw_binding_emit_dirty(struct vmw_ctx_binding_state *cbs)
{
int ret = 0 ;
unsigned long hit = 0 ;
while ((hit = find_next_bit(&cbs->dirty, VMW_BINDING_NUM_BITS, hit))
< VMW_BINDING_NUM_BITS) {
switch (hit) {
case VMW_BINDING_RT_BIT:
ret = vmw_emit_set_rt(cbs);
break ;
case VMW_BINDING_PS_BIT:
ret = vmw_binding_emit_dirty_ps(cbs);
break ;
case VMW_BINDING_SO_T_BIT:
ret = vmw_emit_set_so_target(cbs);
break ;
case VMW_BINDING_VB_BIT:
ret = vmw_emit_set_vb(cbs);
break ;
case VMW_BINDING_UAV_BIT:
ret = vmw_emit_set_uav(cbs);
break ;
case VMW_BINDING_CS_UAV_BIT:
ret = vmw_emit_set_cs_uav(cbs);
break ;
default :
BUG();
}
if (ret)
return ret;
__clear_bit(hit, &cbs->dirty);
hit++;
}
return 0 ;
}
/**
* vmw_binding_scrub_sr - Schedule a dx shaderresource binding
* scrub from a context
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_sr(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_bindinfo_view *biv =
container_of(bi, struct vmw_ctx_bindinfo_view, bi);
struct vmw_ctx_binding_state *cbs =
vmw_context_binding_state(bi->ctx);
__set_bit(biv->slot, cbs->per_shader[biv->shader_slot].dirty_sr);
__set_bit(VMW_BINDING_PS_SR_BIT,
&cbs->per_shader[biv->shader_slot].dirty);
__set_bit(VMW_BINDING_PS_BIT, &cbs->dirty);
return 0 ;
}
/**
* vmw_binding_scrub_dx_rt - Schedule a dx rendertarget binding
* scrub from a context
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_dx_rt(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_binding_state *cbs =
vmw_context_binding_state(bi->ctx);
__set_bit(VMW_BINDING_RT_BIT, &cbs->dirty);
return 0 ;
}
/**
* vmw_binding_scrub_so_target - Schedule a dx streamoutput buffer binding
* scrub from a context
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_so_target(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_binding_state *cbs =
vmw_context_binding_state(bi->ctx);
__set_bit(VMW_BINDING_SO_T_BIT, &cbs->dirty);
return 0 ;
}
/**
* vmw_binding_scrub_vb - Schedule a dx vertex buffer binding
* scrub from a context
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_vb(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_bindinfo_vb *bivb =
container_of(bi, struct vmw_ctx_bindinfo_vb, bi);
struct vmw_ctx_binding_state *cbs =
vmw_context_binding_state(bi->ctx);
__set_bit(bivb->slot, cbs->dirty_vb);
__set_bit(VMW_BINDING_VB_BIT, &cbs->dirty);
return 0 ;
}
/**
* vmw_binding_scrub_ib - scrub a dx index buffer binding from a context
*
* @ bi : single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_ib(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_bindinfo_ib *binding =
container_of(bi, typeof(*binding), bi);
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetIndexBuffer body;
} *cmd;
cmd = VMW_CMD_CTX_RESERVE(dev_priv, sizeof (*cmd), bi->ctx->id);
if (unlikely(cmd == NULL))
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_INDEX_BUFFER;
cmd->header.size = sizeof (cmd->body);
if (rebind) {
cmd->body.sid = bi->res->id;
cmd->body.format = binding->format;
cmd->body.offset = binding->offset;
} else {
cmd->body.sid = SVGA3D_INVALID_ID;
cmd->body.format = 0 ;
cmd->body.offset = 0 ;
}
vmw_cmd_commit(dev_priv, sizeof (*cmd));
return 0 ;
}
static int vmw_binding_scrub_uav(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_binding_state *cbs = vmw_context_binding_state(bi->ctx);
__set_bit(VMW_BINDING_UAV_BIT, &cbs->dirty);
return 0 ;
}
static int vmw_binding_scrub_cs_uav(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_binding_state *cbs = vmw_context_binding_state(bi->ctx);
__set_bit(VMW_BINDING_CS_UAV_BIT, &cbs->dirty);
return 0 ;
}
/**
* vmw_binding_scrub_so - Scrub a streamoutput binding from context .
* @ bi : Single binding information .
* @ rebind : Whether to issue a bind instead of scrub command .
*/
static int vmw_binding_scrub_so(struct vmw_ctx_bindinfo *bi, bool rebind)
{
struct vmw_ctx_bindinfo_so *binding =
container_of(bi, typeof(*binding), bi);
struct vmw_private *dev_priv = bi->ctx->dev_priv;
struct {
SVGA3dCmdHeader header;
SVGA3dCmdDXSetStreamOutput body;
} *cmd;
cmd = VMW_CMD_CTX_RESERVE(dev_priv, sizeof (*cmd), bi->ctx->id);
if (!cmd)
return -ENOMEM;
cmd->header.id = SVGA_3D_CMD_DX_SET_STREAMOUTPUT;
cmd->header.size = sizeof (cmd->body);
cmd->body.soid = rebind ? bi->res->id : SVGA3D_INVALID_ID;
vmw_cmd_commit(dev_priv, sizeof (*cmd));
return 0 ;
}
/**
* vmw_binding_state_alloc - Allocate a struct vmw_ctx_binding_state .
*
* @ dev_priv : Pointer to a device private structure .
*
* Returns a pointer to a newly allocated struct or an error pointer on error .
*/
struct vmw_ctx_binding_state *
vmw_binding_state_alloc(struct vmw_private *dev_priv)
{
struct vmw_ctx_binding_state *cbs;
cbs = vzalloc(sizeof (*cbs));
if (!cbs) {
return ERR_PTR(-ENOMEM);
}
cbs->dev_priv = dev_priv;
INIT_LIST_HEAD(&cbs->list);
return cbs;
}
/**
* vmw_binding_state_free - Free a struct vmw_ctx_binding_state .
*
* @ cbs : Pointer to the struct vmw_ctx_binding_state to be freed .
*/
void vmw_binding_state_free(struct vmw_ctx_binding_state *cbs)
{
vfree(cbs);
}
/**
* vmw_binding_state_list - Get the binding list of a
* struct vmw_ctx_binding_state
*
* @ cbs : Pointer to the struct vmw_ctx_binding_state
*
* Returns the binding list which can be used to traverse through the bindings
* and access the resource information of all bindings .
*/
struct list_head *vmw_binding_state_list(struct vmw_ctx_binding_state *cbs)
{
return &cbs->list;
}
/**
* vmw_binding_state_reset - clear a struct vmw_ctx_binding_state
*
* @ cbs : Pointer to the struct vmw_ctx_binding_state to be cleared
*
* Drops all bindings registered in @ cbs . No device binding actions are
* performed .
*/
void vmw_binding_state_reset(struct vmw_ctx_binding_state *cbs)
{
struct vmw_ctx_bindinfo *entry, *next;
list_for_each_entry_safe(entry, next, &cbs->list, ctx_list)
vmw_binding_drop(entry);
}
/**
* vmw_binding_dirtying - Return whether a binding type is dirtying its resource
* @ binding_type : The binding type
*
* Each time a resource is put on the validation list as the result of a
* context binding referencing it , we need to determine whether that resource
* will be dirtied ( written to by the GPU ) as a result of the corresponding
* GPU operation . Currently rendertarget - , depth - stencil - , stream - output - target
* and unordered access view bindings are capable of dirtying its resource .
*
* Return : Whether the binding type dirties the resource its binding points to .
*/
u32 vmw_binding_dirtying(enum vmw_ctx_binding_type binding_type)
{
static u32 is_binding_dirtying[vmw_ctx_binding_max] = {
[vmw_ctx_binding_rt] = VMW_RES_DIRTY_SET,
[vmw_ctx_binding_dx_rt] = VMW_RES_DIRTY_SET,
[vmw_ctx_binding_ds] = VMW_RES_DIRTY_SET,
[vmw_ctx_binding_so_target] = VMW_RES_DIRTY_SET,
[vmw_ctx_binding_uav] = VMW_RES_DIRTY_SET,
[vmw_ctx_binding_cs_uav] = VMW_RES_DIRTY_SET,
};
/* Review this function as new bindings are added. */
BUILD_BUG_ON(vmw_ctx_binding_max != 14 );
return is_binding_dirtying[binding_type];
}
/*
* This function is unused at run - time , and only used to hold various build
* asserts important for code optimization assumptions .
*/
static void vmw_binding_build_asserts(void )
{
BUILD_BUG_ON(SVGA3D_NUM_SHADERTYPE_DX10 != 3 );
BUILD_BUG_ON(SVGA3D_DX_MAX_RENDER_TARGETS > SVGA3D_RT_MAX);
BUILD_BUG_ON(sizeof (uint32) != sizeof (u32));
/*
* struct vmw_ctx_binding_state : : bind_cmd_buffer is used for various
* view id arrays .
*/
BUILD_BUG_ON(VMW_MAX_VIEW_BINDINGS < SVGA3D_RT_MAX);
BUILD_BUG_ON(VMW_MAX_VIEW_BINDINGS < SVGA3D_DX_MAX_SRVIEWS);
BUILD_BUG_ON(VMW_MAX_VIEW_BINDINGS < SVGA3D_DX_MAX_CONSTBUFFERS);
/*
* struct vmw_ctx_binding_state : : bind_cmd_buffer is used for
* u32 view ids , SVGA3dSoTargets and SVGA3dVertexBuffers
*/
BUILD_BUG_ON(SVGA3D_DX_MAX_SOTARGETS*sizeof (SVGA3dSoTarget) >
VMW_MAX_VIEW_BINDINGS*sizeof (u32));
BUILD_BUG_ON(SVGA3D_DX_MAX_VERTEXBUFFERS*sizeof (SVGA3dVertexBuffer) >
VMW_MAX_VIEW_BINDINGS*sizeof (u32));
}
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