LXR linux/drivers/gpu/drm/vmwgfx/vmwgfx

   1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
   2/**************************************************************************
   3 * Copyright 2014-2015 VMware, Inc., Palo Alto, CA., USA
   4 *
   5 * Permission is hereby granted, free of charge, to any person obtaining a
   6 * copy of this software and associated documentation files (the
   7 * "Software"), to deal in the Software without restriction, including
   8 * without limitation the rights to use, copy, modify, merge, publish,
   9 * distribute, sub license, and/or sell copies of the Software, and to
  10 * permit persons to whom the Software is furnished to do so, subject to
  11 * the following conditions:
  12 *
  13 * The above copyright notice and this permission notice (including the
  14 * next paragraph) shall be included in all copies or substantial portions
  15 * of the Software.
  16 *
  17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  20 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  23 * USE OR OTHER DEALINGS IN THE SOFTWARE.
  24 *
  25 **************************************************************************/
  26#ifndef VMW_SO_H
  27#define VMW_SO_H
  28
  29enum vmw_view_type {
  30        vmw_view_sr,
  31        vmw_view_rt,
  32        vmw_view_ds,
  33        vmw_view_max,
  34};
  35
  36enum vmw_so_type {
  37        vmw_so_el,
  38        vmw_so_bs,
  39        vmw_so_ds,
  40        vmw_so_rs,
  41        vmw_so_ss,
  42        vmw_so_so,
  43        vmw_so_max,
  44};
  45
  46/**
  47 * union vmw_view_destroy - view destruction command body
  48 *
  49 * @rtv: RenderTarget view destruction command body
  50 * @srv: ShaderResource view destruction command body
  51 * @dsv: DepthStencil view destruction command body
  52 * @view_id: A single u32 view id.
  53 *
  54 * The assumption here is that all union members are really represented by a
  55 * single u32 in the command stream. If that's not the case,
  56 * the size of this union will not equal the size of an u32, and the
  57 * assumption is invalid, and we detect that at compile time in the
  58 * vmw_so_build_asserts() function.
  59 */
  60union vmw_view_destroy {
  61        struct SVGA3dCmdDXDestroyRenderTargetView rtv;
  62        struct SVGA3dCmdDXDestroyShaderResourceView srv;
  63        struct SVGA3dCmdDXDestroyDepthStencilView dsv;
  64        u32 view_id;
  65};
  66
  67/* Map enum vmw_view_type to view destroy command ids*/
  68extern const u32 vmw_view_destroy_cmds[];
  69
  70/* Map enum vmw_view_type to SVGACOTableType */
  71extern const SVGACOTableType vmw_view_cotables[];
  72
  73/* Map enum vmw_so_type to SVGACOTableType */
  74extern const SVGACOTableType vmw_so_cotables[];
  75
  76/*
  77 * vmw_view_cmd_to_type - Return the view type for a create or destroy command
  78 *
  79 * @id: The SVGA3D command id.
  80 *
  81 * For a given view create or destroy command id, return the corresponding
  82 * enum vmw_view_type. If the command is unknown, return vmw_view_max.
  83 * The validity of the simplified calculation is verified in the
  84 * vmw_so_build_asserts() function.
  85 */
  86static inline enum vmw_view_type vmw_view_cmd_to_type(u32 id)
  87{
  88        u32 tmp = (id - SVGA_3D_CMD_DX_DEFINE_SHADERRESOURCE_VIEW) / 2;
  89
  90        if (tmp > (u32)vmw_view_max)
  91                return vmw_view_max;
  92
  93        return (enum vmw_view_type) tmp;
  94}
  95
  96/*
  97 * vmw_so_cmd_to_type - Return the state object type for a
  98 * create or destroy command
  99 *
 100 * @id: The SVGA3D command id.
 101 *
 102 * For a given state object create or destroy command id,
 103 * return the corresponding enum vmw_so_type. If the command is uknown,
 104 * return vmw_so_max. We should perhaps optimize this function using
 105 * a similar strategy as vmw_view_cmd_to_type().
 106 */
 107static inline enum vmw_so_type vmw_so_cmd_to_type(u32 id)
 108{
 109        switch (id) {
 110        case SVGA_3D_CMD_DX_DEFINE_ELEMENTLAYOUT:
 111        case SVGA_3D_CMD_DX_DESTROY_ELEMENTLAYOUT:
 112                return vmw_so_el;
 113        case SVGA_3D_CMD_DX_DEFINE_BLEND_STATE:
 114        case SVGA_3D_CMD_DX_DESTROY_BLEND_STATE:
 115                return vmw_so_bs;
 116        case SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_STATE:
 117        case SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_STATE:
 118                return vmw_so_ds;
 119        case SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE:
 120        case SVGA_3D_CMD_DX_DESTROY_RASTERIZER_STATE:
 121                return vmw_so_rs;
 122        case SVGA_3D_CMD_DX_DEFINE_SAMPLER_STATE:
 123        case SVGA_3D_CMD_DX_DESTROY_SAMPLER_STATE:
 124                return vmw_so_ss;
 125        case SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT:
 126        case SVGA_3D_CMD_DX_DESTROY_STREAMOUTPUT:
 127                return vmw_so_so;
 128        default:
 129                break;
 130        }
 131        return vmw_so_max;
 132}
 133
 134/*
 135 * View management - vmwgfx_so.c
 136 */
 137extern int vmw_view_add(struct vmw_cmdbuf_res_manager *man,
 138                        struct vmw_resource *ctx,
 139                        struct vmw_resource *srf,
 140                        enum vmw_view_type view_type,
 141                        u32 user_key,
 142                        const void *cmd,
 143                        size_t cmd_size,
 144                        struct list_head *list);
 145
 146extern int vmw_view_remove(struct vmw_cmdbuf_res_manager *man,
 147                           u32 user_key, enum vmw_view_type view_type,
 148                           struct list_head *list,
 149                           struct vmw_resource **res_p);
 150
 151extern void vmw_view_surface_list_destroy(struct vmw_private *dev_priv,
 152                                          struct list_head *view_list);
 153extern void vmw_view_cotable_list_destroy(struct vmw_private *dev_priv,
 154                                          struct list_head *list,
 155                                          bool readback);
 156extern struct vmw_resource *vmw_view_srf(struct vmw_resource *res);
 157extern struct vmw_resource *vmw_view_lookup(struct vmw_cmdbuf_res_manager *man,
 158                                            enum vmw_view_type view_type,
 159                                            u32 user_key);
 160extern u32 vmw_view_dirtying(struct vmw_resource *res);
 161#endif
 162