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
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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