drivers/gpu/drm/vmwgfx/vmwgfx_binding.h

   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 struct vmw_private;
  37 struct vmw_ctx_binding_state;
  38
  39 /*
  40  * enum vmw_ctx_binding_type - abstract resource to context binding types
  41  */
  42 enum vmw_ctx_binding_type {
  43         vmw_ctx_binding_shader,
  44         vmw_ctx_binding_rt,
  45         vmw_ctx_binding_tex,
  46         vmw_ctx_binding_cb,
  47         vmw_ctx_binding_dx_shader,
  48         vmw_ctx_binding_dx_rt,
  49         vmw_ctx_binding_sr,
  50         vmw_ctx_binding_ds,
  51         vmw_ctx_binding_so,
  52         vmw_ctx_binding_vb,
  53         vmw_ctx_binding_ib,
  54         vmw_ctx_binding_max
  55 };
  56
  57 /**
  58  * struct vmw_ctx_bindinfo - single binding metadata
  59  *
  60  * @ctx_list: List head for the context's list of bindings.
  61  * @res_list: List head for a resource's list of bindings.
  62  * @ctx: Non-refcounted pointer to the context that owns the binding. NULL
  63  * indicates no binding present.
  64  * @res: Non-refcounted pointer to the resource the binding points to. This
  65  * is typically a surface or a view.
  66  * @bt: Binding type.
  67  * @scrubbed: Whether the binding has been scrubbed from the context.
  68  */
  69 struct vmw_ctx_bindinfo {
  70         struct list_head ctx_list;
  71         struct list_head res_list;
  72         struct vmw_resource *ctx;
  73         struct vmw_resource *res;
  74         enum vmw_ctx_binding_type bt;
  75         bool scrubbed;
  76 };
  77
  78 /**
  79  * struct vmw_ctx_bindinfo_tex - texture stage binding metadata
  80  *
  81  * @bi: struct vmw_ctx_bindinfo we derive from.
  82  * @texture_stage: Device data used to reconstruct binding command.
  83  */
  84 struct vmw_ctx_bindinfo_tex {
  85         struct vmw_ctx_bindinfo bi;
  86         uint32 texture_stage;
  87 };
  88
  89 /**
  90  * struct vmw_ctx_bindinfo_shader - Shader binding metadata
  91  *
  92  * @bi: struct vmw_ctx_bindinfo we derive from.
  93  * @shader_slot: Device data used to reconstruct binding command.
  94  */
  95 struct vmw_ctx_bindinfo_shader {
  96         struct vmw_ctx_bindinfo bi;
  97         SVGA3dShaderType shader_slot;
  98 };
  99
 100 /**
 101  * struct vmw_ctx_bindinfo_cb - Constant buffer binding metadata
 102  *
 103  * @bi: struct vmw_ctx_bindinfo we derive from.
 104  * @shader_slot: Device data used to reconstruct binding command.
 105  * @offset: Device data used to reconstruct binding command.
 106  * @size: Device data used to reconstruct binding command.
 107  * @slot: Device data used to reconstruct binding command.
 108  */
 109 struct vmw_ctx_bindinfo_cb {
 110         struct vmw_ctx_bindinfo bi;
 111         SVGA3dShaderType shader_slot;
 112         uint32 offset;
 113         uint32 size;
 114         uint32 slot;
 115 };
 116
 117 /**
 118  * struct vmw_ctx_bindinfo_view - View binding metadata
 119  *
 120  * @bi: struct vmw_ctx_bindinfo we derive from.
 121  * @shader_slot: Device data used to reconstruct binding command.
 122  * @slot: Device data used to reconstruct binding command.
 123  */
 124 struct vmw_ctx_bindinfo_view {
 125         struct vmw_ctx_bindinfo bi;
 126         SVGA3dShaderType shader_slot;
 127         uint32 slot;
 128 };
 129
 130 /**
 131  * struct vmw_ctx_bindinfo_so - StreamOutput binding metadata
 132  *
 133  * @bi: struct vmw_ctx_bindinfo we derive from.
 134  * @offset: Device data used to reconstruct binding command.
 135  * @size: Device data used to reconstruct binding command.
 136  * @slot: Device data used to reconstruct binding command.
 137  */
 138 struct vmw_ctx_bindinfo_so {
 139         struct vmw_ctx_bindinfo bi;
 140         uint32 offset;
 141         uint32 size;
 142         uint32 slot;
 143 };
 144
 145 /**
 146  * struct vmw_ctx_bindinfo_vb - Vertex buffer binding metadata
 147  *
 148  * @bi: struct vmw_ctx_bindinfo we derive from.
 149  * @offset: Device data used to reconstruct binding command.
 150  * @stride: Device data used to reconstruct binding command.
 151  * @slot: Device data used to reconstruct binding command.
 152  */
 153 struct vmw_ctx_bindinfo_vb {
 154         struct vmw_ctx_bindinfo bi;
 155         uint32 offset;
 156         uint32 stride;
 157         uint32 slot;
 158 };
 159
 160 /**
 161  * struct vmw_ctx_bindinfo_ib - StreamOutput binding metadata
 162  *
 163  * @bi: struct vmw_ctx_bindinfo we derive from.
 164  * @offset: Device data used to reconstruct binding command.
 165  * @format: Device data used to reconstruct binding command.
 166  */
 167 struct vmw_ctx_bindinfo_ib {
 168         struct vmw_ctx_bindinfo bi;
 169         uint32 offset;
 170         uint32 format;
 171 };
 172
 173 /**
 174  * struct vmw_dx_shader_bindings - per shader type context binding state
 175  *
 176  * @shader: The shader binding for this shader type
 177  * @const_buffer: Const buffer bindings for this shader type.
 178  * @shader_res: Shader resource view bindings for this shader type.
 179  * @dirty_sr: Bitmap tracking individual shader resource bindings changes
 180  * that have not yet been emitted to the device.
 181  * @dirty: Bitmap tracking per-binding type binding changes that have not
 182  * yet been emitted to the device.
 183  */
 184 struct vmw_dx_shader_bindings {
 185         struct vmw_ctx_bindinfo_shader shader;
 186         struct vmw_ctx_bindinfo_cb const_buffers[SVGA3D_DX_MAX_CONSTBUFFERS];
 187         struct vmw_ctx_bindinfo_view shader_res[SVGA3D_DX_MAX_SRVIEWS];
 188         DECLARE_BITMAP(dirty_sr, SVGA3D_DX_MAX_SRVIEWS);
 189         unsigned long dirty;
 190 };
 191
 192 extern void vmw_binding_add(struct vmw_ctx_binding_state *cbs,
 193                             const struct vmw_ctx_bindinfo *ci,
 194                             u32 shader_slot, u32 slot);
 195 extern void
 196 vmw_binding_state_commit(struct vmw_ctx_binding_state *to,
 197                          struct vmw_ctx_binding_state *from);
 198 extern void vmw_binding_res_list_kill(struct list_head *head);
 199 extern void vmw_binding_res_list_scrub(struct list_head *head);
 200 extern int vmw_binding_rebind_all(struct vmw_ctx_binding_state *cbs);
 201 extern void vmw_binding_state_kill(struct vmw_ctx_binding_state *cbs);
 202 extern void vmw_binding_state_scrub(struct vmw_ctx_binding_state *cbs);
 203 extern struct vmw_ctx_binding_state *
 204 vmw_binding_state_alloc(struct vmw_private *dev_priv);
 205 extern void vmw_binding_state_free(struct vmw_ctx_binding_state *cbs);
 206 extern struct list_head *
 207 vmw_binding_state_list(struct vmw_ctx_binding_state *cbs);
 208 extern void vmw_binding_state_reset(struct vmw_ctx_binding_state *cbs);
 209 extern u32 vmw_binding_dirtying(enum vmw_ctx_binding_type binding_type);
 210
 211
 212 #endif