linux/drivers/gpu/drm/vmwgfx/vmwgfx_binding.h
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   1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
   2/**************************************************************************
   3 *
   4 * Copyright 2015 VMware, Inc., Palo Alto, CA., USA
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a
   7 * copy of this software and associated documentation files (the
   8 * "Software"), to deal in the Software without restriction, including
   9 * without limitation the rights to use, copy, modify, merge, publish,
  10 * distribute, sub license, and/or sell copies of the Software, and to
  11 * permit persons to whom the Software is furnished to do so, subject to
  12 * the following conditions:
  13 *
  14 * The above copyright notice and this permission notice (including the
  15 * next paragraph) shall be included in all copies or substantial portions
  16 * of the Software.
  17 *
  18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
  25 *
  26 **************************************************************************/
  27#ifndef _VMWGFX_BINDING_H_
  28#define _VMWGFX_BINDING_H_
  29
  30#include <linux/list.h>
  31
  32#include "device_include/svga3d_reg.h"
  33
  34#define VMW_MAX_VIEW_BINDINGS 128
  35
  36#define VMW_MAX_UAV_BIND_TYPE 2
  37
  38struct vmw_private;
  39struct vmw_ctx_binding_state;
  40
  41/*
  42 * enum vmw_ctx_binding_type - abstract resource to context binding types
  43 */
  44enum vmw_ctx_binding_type {
  45        vmw_ctx_binding_shader,
  46        vmw_ctx_binding_rt,
  47        vmw_ctx_binding_tex,
  48        vmw_ctx_binding_cb,
  49        vmw_ctx_binding_dx_shader,
  50        vmw_ctx_binding_dx_rt,
  51        vmw_ctx_binding_sr,
  52        vmw_ctx_binding_ds,
  53        vmw_ctx_binding_so_target,
  54        vmw_ctx_binding_vb,
  55        vmw_ctx_binding_ib,
  56        vmw_ctx_binding_uav,
  57        vmw_ctx_binding_cs_uav,
  58        vmw_ctx_binding_so,
  59        vmw_ctx_binding_max
  60};
  61
  62/**
  63 * struct vmw_ctx_bindinfo - single binding metadata
  64 *
  65 * @ctx_list: List head for the context's list of bindings.
  66 * @res_list: List head for a resource's list of bindings.
  67 * @ctx: Non-refcounted pointer to the context that owns the binding. NULL
  68 * indicates no binding present.
  69 * @res: Non-refcounted pointer to the resource the binding points to. This
  70 * is typically a surface or a view.
  71 * @bt: Binding type.
  72 * @scrubbed: Whether the binding has been scrubbed from the context.
  73 */
  74struct vmw_ctx_bindinfo {
  75        struct list_head ctx_list;
  76        struct list_head res_list;
  77        struct vmw_resource *ctx;
  78        struct vmw_resource *res;
  79        enum vmw_ctx_binding_type bt;
  80        bool scrubbed;
  81};
  82
  83/**
  84 * struct vmw_ctx_bindinfo_tex - texture stage binding metadata
  85 *
  86 * @bi: struct vmw_ctx_bindinfo we derive from.
  87 * @texture_stage: Device data used to reconstruct binding command.
  88 */
  89struct vmw_ctx_bindinfo_tex {
  90        struct vmw_ctx_bindinfo bi;
  91        uint32 texture_stage;
  92};
  93
  94/**
  95 * struct vmw_ctx_bindinfo_shader - Shader binding metadata
  96 *
  97 * @bi: struct vmw_ctx_bindinfo we derive from.
  98 * @shader_slot: Device data used to reconstruct binding command.
  99 */
 100struct vmw_ctx_bindinfo_shader {
 101        struct vmw_ctx_bindinfo bi;
 102        SVGA3dShaderType shader_slot;
 103};
 104
 105/**
 106 * struct vmw_ctx_bindinfo_cb - Constant buffer binding metadata
 107 *
 108 * @bi: struct vmw_ctx_bindinfo we derive from.
 109 * @shader_slot: Device data used to reconstruct binding command.
 110 * @offset: Device data used to reconstruct binding command.
 111 * @size: Device data used to reconstruct binding command.
 112 * @slot: Device data used to reconstruct binding command.
 113 */
 114struct vmw_ctx_bindinfo_cb {
 115        struct vmw_ctx_bindinfo bi;
 116        SVGA3dShaderType shader_slot;
 117        uint32 offset;
 118        uint32 size;
 119        uint32 slot;
 120};
 121
 122/**
 123 * struct vmw_ctx_bindinfo_view - View binding metadata
 124 *
 125 * @bi: struct vmw_ctx_bindinfo we derive from.
 126 * @shader_slot: Device data used to reconstruct binding command.
 127 * @slot: Device data used to reconstruct binding command.
 128 */
 129struct vmw_ctx_bindinfo_view {
 130        struct vmw_ctx_bindinfo bi;
 131        SVGA3dShaderType shader_slot;
 132        uint32 slot;
 133};
 134
 135/**
 136 * struct vmw_ctx_bindinfo_so_target - StreamOutput binding metadata
 137 *
 138 * @bi: struct vmw_ctx_bindinfo we derive from.
 139 * @offset: Device data used to reconstruct binding command.
 140 * @size: Device data used to reconstruct binding command.
 141 * @slot: Device data used to reconstruct binding command.
 142 */
 143struct vmw_ctx_bindinfo_so_target {
 144        struct vmw_ctx_bindinfo bi;
 145        uint32 offset;
 146        uint32 size;
 147        uint32 slot;
 148};
 149
 150/**
 151 * struct vmw_ctx_bindinfo_vb - Vertex buffer binding metadata
 152 *
 153 * @bi: struct vmw_ctx_bindinfo we derive from.
 154 * @offset: Device data used to reconstruct binding command.
 155 * @stride: Device data used to reconstruct binding command.
 156 * @slot: Device data used to reconstruct binding command.
 157 */
 158struct vmw_ctx_bindinfo_vb {
 159        struct vmw_ctx_bindinfo bi;
 160        uint32 offset;
 161        uint32 stride;
 162        uint32 slot;
 163};
 164
 165/**
 166 * struct vmw_ctx_bindinfo_ib - StreamOutput binding metadata
 167 *
 168 * @bi: struct vmw_ctx_bindinfo we derive from.
 169 * @offset: Device data used to reconstruct binding command.
 170 * @format: Device data used to reconstruct binding command.
 171 */
 172struct vmw_ctx_bindinfo_ib {
 173        struct vmw_ctx_bindinfo bi;
 174        uint32 offset;
 175        uint32 format;
 176};
 177
 178/**
 179 * struct vmw_dx_shader_bindings - per shader type context binding state
 180 *
 181 * @shader: The shader binding for this shader type
 182 * @const_buffer: Const buffer bindings for this shader type.
 183 * @shader_res: Shader resource view bindings for this shader type.
 184 * @dirty_sr: Bitmap tracking individual shader resource bindings changes
 185 * that have not yet been emitted to the device.
 186 * @dirty: Bitmap tracking per-binding type binding changes that have not
 187 * yet been emitted to the device.
 188 */
 189struct vmw_dx_shader_bindings {
 190        struct vmw_ctx_bindinfo_shader shader;
 191        struct vmw_ctx_bindinfo_cb const_buffers[SVGA3D_DX_MAX_CONSTBUFFERS];
 192        struct vmw_ctx_bindinfo_view shader_res[SVGA3D_DX_MAX_SRVIEWS];
 193        DECLARE_BITMAP(dirty_sr, SVGA3D_DX_MAX_SRVIEWS);
 194        unsigned long dirty;
 195};
 196
 197/**
 198 * struct vmw_ctx_bindinfo_uav - UAV context binding state.
 199 * @views: UAV view bindings.
 200 * @splice_index: The device splice index set by user-space.
 201 */
 202struct vmw_ctx_bindinfo_uav {
 203        struct vmw_ctx_bindinfo_view views[SVGA3D_MAX_UAVIEWS];
 204        uint32 index;
 205};
 206
 207/**
 208 * struct vmw_ctx_bindinfo_so - Stream output binding metadata.
 209 * @bi: struct vmw_ctx_bindinfo we derive from.
 210 * @slot: Device data used to reconstruct binding command.
 211 */
 212struct vmw_ctx_bindinfo_so {
 213        struct vmw_ctx_bindinfo bi;
 214        uint32 slot;
 215};
 216
 217extern void vmw_binding_add(struct vmw_ctx_binding_state *cbs,
 218                            const struct vmw_ctx_bindinfo *ci,
 219                            u32 shader_slot, u32 slot);
 220extern void vmw_binding_add_uav_index(struct vmw_ctx_binding_state *cbs,
 221                                      uint32 slot, uint32 splice_index);
 222extern void
 223vmw_binding_state_commit(struct vmw_ctx_binding_state *to,
 224                         struct vmw_ctx_binding_state *from);
 225extern void vmw_binding_res_list_kill(struct list_head *head);
 226extern void vmw_binding_res_list_scrub(struct list_head *head);
 227extern int vmw_binding_rebind_all(struct vmw_ctx_binding_state *cbs);
 228extern void vmw_binding_state_kill(struct vmw_ctx_binding_state *cbs);
 229extern void vmw_binding_state_scrub(struct vmw_ctx_binding_state *cbs);
 230extern struct vmw_ctx_binding_state *
 231vmw_binding_state_alloc(struct vmw_private *dev_priv);
 232extern void vmw_binding_state_free(struct vmw_ctx_binding_state *cbs);
 233extern struct list_head *
 234vmw_binding_state_list(struct vmw_ctx_binding_state *cbs);
 235extern void vmw_binding_state_reset(struct vmw_ctx_binding_state *cbs);
 236extern u32 vmw_binding_dirtying(enum vmw_ctx_binding_type binding_type);
 237
 238
 239#endif
 240
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