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_ua,
 34	vmw_view_max,
 35};
 36
 37enum vmw_so_type {
 38	vmw_so_el,
 39	vmw_so_bs,
 40	vmw_so_ds,
 41	vmw_so_rs,
 42	vmw_so_ss,
 43	vmw_so_so,
 44	vmw_so_max,
 45};
 46
 47/**
 48 * union vmw_view_destroy - view destruction command body
 49 *
 50 * @rtv: RenderTarget view destruction command body
 51 * @srv: ShaderResource view destruction command body
 52 * @dsv: DepthStencil view destruction command body
 53 * @view_id: A single u32 view id.
 54 *
 55 * The assumption here is that all union members are really represented by a
 56 * single u32 in the command stream. If that's not the case,
 57 * the size of this union will not equal the size of an u32, and the
 58 * assumption is invalid, and we detect that at compile time in the
 59 * vmw_so_build_asserts() function.
 60 */
 61union vmw_view_destroy {
 62	struct SVGA3dCmdDXDestroyRenderTargetView rtv;
 63	struct SVGA3dCmdDXDestroyShaderResourceView srv;
 64	struct SVGA3dCmdDXDestroyDepthStencilView dsv;
 65	struct SVGA3dCmdDXDestroyUAView uav;
 66	u32 view_id;
 67};
 68
 69/* Map enum vmw_view_type to view destroy command ids*/
 70extern const u32 vmw_view_destroy_cmds[];
 71
 72/* Map enum vmw_view_type to SVGACOTableType */
 73extern const SVGACOTableType vmw_view_cotables[];
 74
 75/* Map enum vmw_so_type to SVGACOTableType */
 76extern 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 */
 88static 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 (id == SVGA_3D_CMD_DX_DEFINE_UA_VIEW ||
 93	    id == SVGA_3D_CMD_DX_DESTROY_UA_VIEW)
 94		return vmw_view_ua;
 95
 96	if (id == SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_VIEW_V2)
 97		return vmw_view_ds;
 98
 99	if (tmp > (u32)vmw_view_ds)
100		return vmw_view_max;
101
102	return (enum vmw_view_type) tmp;
103}
104
105/*
106 * vmw_so_cmd_to_type - Return the state object type for a
107 * create or destroy command
108 *
109 * @id: The SVGA3D command id.
110 *
111 * For a given state object create or destroy command id,
112 * return the corresponding enum vmw_so_type. If the command is uknown,
113 * return vmw_so_max. We should perhaps optimize this function using
114 * a similar strategy as vmw_view_cmd_to_type().
115 */
116static inline enum vmw_so_type vmw_so_cmd_to_type(u32 id)
117{
118	switch (id) {
119	case SVGA_3D_CMD_DX_DEFINE_ELEMENTLAYOUT:
120	case SVGA_3D_CMD_DX_DESTROY_ELEMENTLAYOUT:
121		return vmw_so_el;
122	case SVGA_3D_CMD_DX_DEFINE_BLEND_STATE:
123	case SVGA_3D_CMD_DX_DESTROY_BLEND_STATE:
124		return vmw_so_bs;
125	case SVGA_3D_CMD_DX_DEFINE_DEPTHSTENCIL_STATE:
126	case SVGA_3D_CMD_DX_DESTROY_DEPTHSTENCIL_STATE:
127		return vmw_so_ds;
128	case SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE:
129	case SVGA_3D_CMD_DX_DEFINE_RASTERIZER_STATE_V2:
130	case SVGA_3D_CMD_DX_DESTROY_RASTERIZER_STATE:
131		return vmw_so_rs;
132	case SVGA_3D_CMD_DX_DEFINE_SAMPLER_STATE:
133	case SVGA_3D_CMD_DX_DESTROY_SAMPLER_STATE:
134		return vmw_so_ss;
135	case SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT:
136	case SVGA_3D_CMD_DX_DEFINE_STREAMOUTPUT_WITH_MOB:
137	case SVGA_3D_CMD_DX_DESTROY_STREAMOUTPUT:
138		return vmw_so_so;
139	default:
140		break;
141	}
142	return vmw_so_max;
143}
144
145/*
146 * View management - vmwgfx_so.c
147 */
148extern int vmw_view_add(struct vmw_cmdbuf_res_manager *man,
149			struct vmw_resource *ctx,
150			struct vmw_resource *srf,
151			enum vmw_view_type view_type,
152			u32 user_key,
153			const void *cmd,
154			size_t cmd_size,
155			struct list_head *list);
156
157extern int vmw_view_remove(struct vmw_cmdbuf_res_manager *man,
158			   u32 user_key, enum vmw_view_type view_type,
159			   struct list_head *list,
160			   struct vmw_resource **res_p);
161
162extern void vmw_view_surface_list_destroy(struct vmw_private *dev_priv,
163					  struct list_head *view_list);
164extern void vmw_view_cotable_list_destroy(struct vmw_private *dev_priv,
165					  struct list_head *list,
166					  bool readback);
167extern struct vmw_resource *vmw_view_srf(struct vmw_resource *res);
168extern struct vmw_resource *vmw_view_lookup(struct vmw_cmdbuf_res_manager *man,
169					    enum vmw_view_type view_type,
170					    u32 user_key);
171extern u32 vmw_view_dirtying(struct vmw_resource *res);
172#endif