drivers/gpu/drm/vmwgfx/vmwgfx_binding.h

   1 /**************************************************************************
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   3  * Copyright © 2015 VMware, Inc., Palo Alto, CA., USA
   4  * All Rights Reserved.
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  11  * permit persons to whom the Software is furnished to do so, subject to
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  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.
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  26  **************************************************************************/
  27 #ifndef _VMWGFX_BINDING_H_
  28 #define _VMWGFX_BINDING_H_
  29
  30 #include "device_include/svga3d_reg.h"
  31 #include <linux/list.h>
  32
  33 #define VMW_MAX_VIEW_BINDINGS 128
  34
  35 struct vmw_private;
  36 struct vmw_ctx_binding_state;
  37
  38 /*
  39  * enum vmw_ctx_binding_type - abstract resource to context binding types
  40  */
  41 enum vmw_ctx_binding_type {
  42         vmw_ctx_binding_shader,
  43         vmw_ctx_binding_rt,
  44         vmw_ctx_binding_tex,
  45         vmw_ctx_binding_cb,
  46         vmw_ctx_binding_dx_shader,
  47         vmw_ctx_binding_dx_rt,
  48         vmw_ctx_binding_sr,
  49         vmw_ctx_binding_ds,
  50         vmw_ctx_binding_so,
  51         vmw_ctx_binding_vb,
  52         vmw_ctx_binding_ib,
  53         vmw_ctx_binding_max
  54 };
  55
  56 /**
  57  * struct vmw_ctx_bindinfo - single binding metadata
  58  *
  59  * @ctx_list: List head for the context's list of bindings.
  60  * @res_list: List head for a resource's list of bindings.
  61  * @ctx: Non-refcounted pointer to the context that owns the binding. NULL
  62  * indicates no binding present.
  63  * @res: Non-refcounted pointer to the resource the binding points to. This
  64  * is typically a surface or a view.
  65  * @bt: Binding type.
  66  * @scrubbed: Whether the binding has been scrubbed from the context.
  67  */
  68 struct vmw_ctx_bindinfo {
  69         struct list_head ctx_list;
  70         struct list_head res_list;
  71         struct vmw_resource *ctx;
  72         struct vmw_resource *res;
  73         enum vmw_ctx_binding_type bt;
  74         bool scrubbed;
  75 };
  76
  77 /**
  78  * struct vmw_ctx_bindinfo_tex - texture stage binding metadata
  79  *
  80  * @bi: struct vmw_ctx_bindinfo we derive from.
  81  * @texture_stage: Device data used to reconstruct binding command.
  82  */
  83 struct vmw_ctx_bindinfo_tex {
  84         struct vmw_ctx_bindinfo bi;
  85         uint32 texture_stage;
  86 };
  87
  88 /**
  89  * struct vmw_ctx_bindinfo_shader - Shader binding metadata
  90  *
  91  * @bi: struct vmw_ctx_bindinfo we derive from.
  92  * @shader_slot: Device data used to reconstruct binding command.
  93  */
  94 struct vmw_ctx_bindinfo_shader {
  95         struct vmw_ctx_bindinfo bi;
  96         SVGA3dShaderType shader_slot;
  97 };
  98
  99 /**
 100  * struct vmw_ctx_bindinfo_cb - Constant buffer binding metadata
 101  *
 102  * @bi: struct vmw_ctx_bindinfo we derive from.
 103  * @shader_slot: Device data used to reconstruct binding command.
 104  * @offset: Device data used to reconstruct binding command.
 105  * @size: Device data used to reconstruct binding command.
 106  * @slot: Device data used to reconstruct binding command.
 107  */
 108 struct vmw_ctx_bindinfo_cb {
 109         struct vmw_ctx_bindinfo bi;
 110         SVGA3dShaderType shader_slot;
 111         uint32 offset;
 112         uint32 size;
 113         uint32 slot;
 114 };
 115
 116 /**
 117  * struct vmw_ctx_bindinfo_view - View binding metadata
 118  *
 119  * @bi: struct vmw_ctx_bindinfo we derive from.
 120  * @shader_slot: Device data used to reconstruct binding command.
 121  * @slot: Device data used to reconstruct binding command.
 122  */
 123 struct vmw_ctx_bindinfo_view {
 124         struct vmw_ctx_bindinfo bi;
 125         SVGA3dShaderType shader_slot;
 126         uint32 slot;
 127 };
 128
 129 /**
 130  * struct vmw_ctx_bindinfo_so - StreamOutput binding metadata
 131  *
 132  * @bi: struct vmw_ctx_bindinfo we derive from.
 133  * @offset: Device data used to reconstruct binding command.
 134  * @size: Device data used to reconstruct binding command.
 135  * @slot: Device data used to reconstruct binding command.
 136  */
 137 struct vmw_ctx_bindinfo_so {
 138         struct vmw_ctx_bindinfo bi;
 139         uint32 offset;
 140         uint32 size;
 141         uint32 slot;
 142 };
 143
 144 /**
 145  * struct vmw_ctx_bindinfo_vb - Vertex buffer binding metadata
 146  *
 147  * @bi: struct vmw_ctx_bindinfo we derive from.
 148  * @offset: Device data used to reconstruct binding command.
 149  * @stride: Device data used to reconstruct binding command.
 150  * @slot: Device data used to reconstruct binding command.
 151  */
 152 struct vmw_ctx_bindinfo_vb {
 153         struct vmw_ctx_bindinfo bi;
 154         uint32 offset;
 155         uint32 stride;
 156         uint32 slot;
 157 };
 158
 159 /**
 160  * struct vmw_ctx_bindinfo_ib - StreamOutput binding metadata
 161  *
 162  * @bi: struct vmw_ctx_bindinfo we derive from.
 163  * @offset: Device data used to reconstruct binding command.
 164  * @format: Device data used to reconstruct binding command.
 165  */
 166 struct vmw_ctx_bindinfo_ib {
 167         struct vmw_ctx_bindinfo bi;
 168         uint32 offset;
 169         uint32 format;
 170 };
 171
 172 /**
 173  * struct vmw_dx_shader_bindings - per shader type context binding state
 174  *
 175  * @shader: The shader binding for this shader type
 176  * @const_buffer: Const buffer bindings for this shader type.
 177  * @shader_res: Shader resource view bindings for this shader type.
 178  * @dirty_sr: Bitmap tracking individual shader resource bindings changes
 179  * that have not yet been emitted to the device.
 180  * @dirty: Bitmap tracking per-binding type binding changes that have not
 181  * yet been emitted to the device.
 182  */
 183 struct vmw_dx_shader_bindings {
 184         struct vmw_ctx_bindinfo_shader shader;
 185         struct vmw_ctx_bindinfo_cb const_buffers[SVGA3D_DX_MAX_CONSTBUFFERS];
 186         struct vmw_ctx_bindinfo_view shader_res[SVGA3D_DX_MAX_SRVIEWS];
 187         DECLARE_BITMAP(dirty_sr, SVGA3D_DX_MAX_SRVIEWS);
 188         unsigned long dirty;
 189 };
 190
 191 extern void vmw_binding_add(struct vmw_ctx_binding_state *cbs,
 192                             const struct vmw_ctx_bindinfo *ci,
 193                             u32 shader_slot, u32 slot);
 194 extern void
 195 vmw_binding_state_commit(struct vmw_ctx_binding_state *to,
 196                          struct vmw_ctx_binding_state *from);
 197 extern void vmw_binding_res_list_kill(struct list_head *head);
 198 extern void vmw_binding_res_list_scrub(struct list_head *head);
 199 extern int vmw_binding_rebind_all(struct vmw_ctx_binding_state *cbs);
 200 extern void vmw_binding_state_kill(struct vmw_ctx_binding_state *cbs);
 201 extern void vmw_binding_state_scrub(struct vmw_ctx_binding_state *cbs);
 202 extern struct vmw_ctx_binding_state *
 203 vmw_binding_state_alloc(struct vmw_private *dev_priv);
 204 extern void vmw_binding_state_free(struct vmw_ctx_binding_state *cbs);
 205 extern struct list_head *
 206 vmw_binding_state_list(struct vmw_ctx_binding_state *cbs);
 207 extern void vmw_binding_state_reset(struct vmw_ctx_binding_state *cbs);
 208
 209 #endif