1 /* SPDX-License-Identifier: GPL-2.0 OR MIT */ 2 /********************************************************** 3 * Copyright 2007-2019 VMware, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person 6 * obtaining a copy of this software and associated documentation 7 * files (the "Software"), to deal in the Software without 8 * restriction, including without limitation the rights to use, copy, 9 * modify, merge, publish, distribute, sublicense, and/or sell copies 10 * of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be 14 * included in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 20 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 21 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 23 * SOFTWARE. 24 * 25 **********************************************************/ 26 27 /* 28 * svga3d_limits.h -- 29 * 30 * SVGA 3d hardware limits 31 */ 32 33 #ifndef _SVGA3D_LIMITS_H_ 34 #define _SVGA3D_LIMITS_H_ 35 36 #define INCLUDE_ALLOW_MODULE 37 #define INCLUDE_ALLOW_USERLEVEL 38 #define INCLUDE_ALLOW_VMCORE 39 40 #include "includeCheck.h" 41 42 #define SVGA3D_NUM_CLIPPLANES 6 43 #define SVGA3D_MAX_CONTEXT_IDS 256 44 #define SVGA3D_MAX_SURFACE_IDS (32 * 1024) 45 46 /* 47 * While there are separate bind-points for RenderTargetViews and 48 * UnorderedAccessViews in a DXContext, there is in fact one shared 49 * semantic space that the guest-driver can use on any given draw call. 50 * So there are really only 8 slots that can be spilt up between them, with the 51 * spliceIndex controlling where the UAV's sit in the collapsed array. 52 */ 53 #define SVGA3D_MAX_RENDER_TARGETS 8 54 #define SVGA3D_MAX_SIMULTANEOUS_RENDER_TARGETS (SVGA3D_MAX_RENDER_TARGETS) 55 #define SVGA3D_MAX_UAVIEWS 8 56 #define SVGA3D_DX11_1_MAX_UAVIEWS 64 57 58 /* 59 * Maximum canonical size of a surface in host-backed mode (pre-GBObjects). 60 */ 61 #define SVGA3D_HB_MAX_SURFACE_SIZE MBYTES_2_BYTES(128) 62 63 /* 64 * Maximum ID a shader can be assigned on a given context. 65 */ 66 #define SVGA3D_MAX_SHADERIDS 5000 67 /* 68 * Maximum number of shaders of a given type that can be defined 69 * (including all contexts). 70 */ 71 #define SVGA3D_MAX_SIMULTANEOUS_SHADERS 20000 72 73 #define SVGA3D_NUM_TEXTURE_UNITS 32 74 #define SVGA3D_NUM_LIGHTS 8 75 76 #define SVGA3D_MAX_VIDEOPROCESSOR_SAMPLERS 32 77 78 /* 79 * Maximum size in dwords of shader text the SVGA device will allow. 80 * Currently 8 MB. 81 */ 82 #define SVGA3D_MAX_SHADER_MEMORY_BYTES (8 * 1024 * 1024) 83 #define SVGA3D_MAX_SHADER_MEMORY (SVGA3D_MAX_SHADER_MEMORY_BYTES / \ 84 sizeof(uint32)) 85 86 /* 87 * The maximum value of threadGroupCount in each dimension 88 */ 89 #define SVGA3D_MAX_SHADER_THREAD_GROUPS 65535 90 91 #define SVGA3D_MAX_CLIP_PLANES 6 92 93 /* 94 * This is the limit to the number of fixed-function texture 95 * transforms and texture coordinates we can support. It does *not* 96 * correspond to the number of texture image units (samplers) we 97 * support! 98 */ 99 #define SVGA3D_MAX_TEXTURE_COORDS 8 100 101 /* 102 * Number of faces in a cubemap. 103 */ 104 #define SVGA3D_MAX_SURFACE_FACES 6 105 106 /* 107 * Maximum number of array indexes in a GB surface (with DX enabled). 108 */ 109 #define SVGA3D_SM4_MAX_SURFACE_ARRAYSIZE 512 110 #define SVGA3D_SM5_MAX_SURFACE_ARRAYSIZE 2048 111 #define SVGA3D_MAX_SURFACE_ARRAYSIZE SVGA3D_SM5_MAX_SURFACE_ARRAYSIZE 112 113 /* 114 * The maximum number of vertex arrays we're guaranteed to support in 115 * SVGA_3D_CMD_DRAWPRIMITIVES. 116 */ 117 #define SVGA3D_MAX_VERTEX_ARRAYS 32 118 119 /* 120 * The maximum number of primitive ranges we're guaranteed to support 121 * in SVGA_3D_CMD_DRAWPRIMITIVES. 122 */ 123 #define SVGA3D_MAX_DRAW_PRIMITIVE_RANGES 32 124 125 /* 126 * The maximum number of samples that can be contained in a surface. 127 */ 128 #define SVGA3D_MAX_SAMPLES 8 129 130 #endif /* _SVGA3D_LIMITS_H_ */ 131