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      1 /*	$NetBSD: vmwgfx_so.h,v 1.3 2021/12/18 23:45:45 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
      4 /**************************************************************************
      5  * Copyright 2014-2015 VMware, Inc., Palo Alto, CA., USA
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the
      9  * "Software"), to deal in the Software without restriction, including
     10  * without limitation the rights to use, copy, modify, merge, publish,
     11  * distribute, sub license, and/or sell copies of the Software, and to
     12  * permit persons to whom the Software is furnished to do so, subject to
     13  * the following conditions:
     14  *
     15  * The above copyright notice and this permission notice (including the
     16  * next paragraph) shall be included in all copies or substantial portions
     17  * of the Software.
     18  *
     19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     20  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     21  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
     22  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
     23  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
     24  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
     25  * USE OR OTHER DEALINGS IN THE SOFTWARE.
     26  *
     27  **************************************************************************/
     28 #ifndef VMW_SO_H
     29 #define VMW_SO_H
     30 
     31 enum vmw_view_type {
     32 	vmw_view_sr,
     33 	vmw_view_rt,
     34 	vmw_view_ds,
     35 	vmw_view_max,
     36 };
     37 
     38 enum vmw_so_type {
     39 	vmw_so_el,
     40 	vmw_so_bs,
     41 	vmw_so_ds,
     42 	vmw_so_rs,
     43 	vmw_so_ss,
     44 	vmw_so_so,
     45 	vmw_so_max,
     46 };
     47 
     48 /**
     49  * union vmw_view_destroy - view destruction command body
     50  *
     51  * @rtv: RenderTarget view destruction command body
     52  * @srv: ShaderResource view destruction command body
     53  * @dsv: DepthStencil view destruction command body
     54  * @view_id: A single u32 view id.
     55  *
     56  * The assumption here is that all union members are really represented by a
     57  * single u32 in the command stream. If that's not the case,
     58  * the size of this union will not equal the size of an u32, and the
     59  * assumption is invalid, and we detect that at compile time in the
     60  * vmw_so_build_asserts() function.
     61  */
     62 union vmw_view_destroy {
     63 	struct SVGA3dCmdDXDestroyRenderTargetView rtv;
     64 	struct SVGA3dCmdDXDestroyShaderResourceView srv;
     65 	struct SVGA3dCmdDXDestroyDepthStencilView dsv;
     66 	u32 view_id;
     67 };
     68 
     69 /* Map enum vmw_view_type to view destroy command ids*/
     70 extern const u32 vmw_view_destroy_cmds[];
     71 
     72 /* Map enum vmw_view_type to SVGACOTableType */
     73 extern const SVGACOTableType vmw_view_cotables[];
     74 
     75 /* Map enum vmw_so_type to SVGACOTableType */
     76 extern const SVGACOTableType vmw_so_cotables[];
     77 
     78 /*
     79  * vmw_view_cmd_to_type - Return the view type for a create or destroy command
     80  *
     81  * @id: The SVGA3D command id.
     82  *
     83  * For a given view create or destroy command id, return the corresponding
     84  * enum vmw_view_type. If the command is unknown, return vmw_view_max.
     85  * The validity of the simplified calculation is verified in the
     86  * vmw_so_build_asserts() function.
     87  */
     88 static inline enum vmw_view_type vmw_view_cmd_to_type(u32 id)
     89 {
     90 	u32 tmp = (id - SVGA_3D_CMD_DX_DEFINE_SHADERRESOURCE_VIEW) / 2;
     91 
     92 	if (tmp > (u32)vmw_view_max)
     93 		return vmw_view_max;
     94 
     95 	return (enum vmw_view_type) tmp;
     96 }
     97 
     98 /*
     99  * vmw_so_cmd_to_type - Return the state object type for a
    100  * create or destroy command
    101  *
    102  * @id: The SVGA3D command id.
    103  *
    104  * For a given state object create or destroy command id,
    105  * return the corresponding enum vmw_so_type. If the command is uknown,
    106  * return vmw_so_max. We should perhaps optimize this function using
    107  * a similar strategy as vmw_view_cmd_to_type().
    108  */
    109 static inline enum vmw_so_type vmw_so_cmd_to_type(u32 id)
    110 {
    111 	switch (id) {
    112 	case SVGA_3D_CMD_DX_DEFINE_ELEMENTLAYOUT:
    113 	case SVGA_3D_CMD_DX_DESTROY_ELEMENTLAYOUT:
    114 		return vmw_so_el;
    115 	case SVGA_3D_CMD_DX_DEFINE_BLEND_STATE:
    116 	case SVGA_3D_CMD_DX_DESTROY_BLEND_STATE:
    117 		return vmw_so_bs;
    118 	case SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_STATE:
    119 	case SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_STATE:
    120 		return vmw_so_ds;
    121 	case SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE:
    122 	case SVGA_3D_CMD_DX_DESTROY_RASTERIZER_STATE:
    123 		return vmw_so_rs;
    124 	case SVGA_3D_CMD_DX_DEFINE_SAMPLER_STATE:
    125 	case SVGA_3D_CMD_DX_DESTROY_SAMPLER_STATE:
    126 		return vmw_so_ss;
    127 	case SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT:
    128 	case SVGA_3D_CMD_DX_DESTROY_STREAMOUTPUT:
    129 		return vmw_so_so;
    130 	default:
    131 		break;
    132 	}
    133 	return vmw_so_max;
    134 }
    135 
    136 /*
    137  * View management - vmwgfx_so.c
    138  */
    139 extern int vmw_view_add(struct vmw_cmdbuf_res_manager *man,
    140 			struct vmw_resource *ctx,
    141 			struct vmw_resource *srf,
    142 			enum vmw_view_type view_type,
    143 			u32 user_key,
    144 			const void *cmd,
    145 			size_t cmd_size,
    146 			struct list_head *list);
    147 
    148 extern int vmw_view_remove(struct vmw_cmdbuf_res_manager *man,
    149 			   u32 user_key, enum vmw_view_type view_type,
    150 			   struct list_head *list,
    151 			   struct vmw_resource **res_p);
    152 
    153 extern void vmw_view_surface_list_destroy(struct vmw_private *dev_priv,
    154 					  struct list_head *view_list);
    155 extern void vmw_view_cotable_list_destroy(struct vmw_private *dev_priv,
    156 					  struct list_head *list,
    157 					  bool readback);
    158 extern struct vmw_resource *vmw_view_srf(struct vmw_resource *res);
    159 extern struct vmw_resource *vmw_view_lookup(struct vmw_cmdbuf_res_manager *man,
    160 					    enum vmw_view_type view_type,
    161 					    u32 user_key);
    162 extern u32 vmw_view_dirtying(struct vmw_resource *res);
    163 #endif
    164