1/*
2 * Copyright © 2019 Broadcom
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#ifndef V3D_LIMITS_H
25#define V3D_LIMITS_H
26
27/* Number of channels a QPU thread executes in parallel.  Also known as
28 * gl_SubGroupSizeARB.
29 */
30#define V3D_CHANNELS 16
31
32#define V3D_MAX_FS_INPUTS 64
33#define V3D_MAX_GS_INPUTS 64
34#define V3D_MAX_VS_INPUTS 64
35#define V3D_MAX_ANY_STAGE_INPUTS MAX3(V3D_MAX_VS_INPUTS, \
36                                      V3D_MAX_GS_INPUTS, \
37                                      V3D_MAX_FS_INPUTS)
38
39#define V3D_MAX_TEXTURE_SAMPLERS 24
40
41#define V3D_MAX_SAMPLES 4
42
43#define V3D_MAX_DRAW_BUFFERS 4
44
45#define V3D_MAX_POINT_SIZE 512.0f
46#define V3D_MAX_LINE_WIDTH 32
47
48#define V3D_MAX_BUFFER_RANGE (1 << 27)
49
50/* Sub-pixel precission bits in the rasterizer */
51#define V3D_COORD_SHIFT 6
52
53/* Size of a cache line */
54#define V3D_NON_COHERENT_ATOM_SIZE 256
55
56#define V3D_MAX_IMAGE_DIMENSION 4096
57
58/* The HW can do 16384 (15), but we run into hangs when we expose that. Also,
59 * since we are only exposing images up to 4096 pixels per dimension 13 is
60 * all we need.
61 */
62#define V3D_MAX_MIP_LEVELS 13
63
64#define V3D_MAX_ARRAY_LAYERS 2048
65
66#endif /* V3D_LIMITS_H */
67