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_VS_INPUTS 64
34
35/* Not specifically a hardware limit, just coordination between compiler and
36 * driver.
37 */
38#define V3D_MAX_TEXTURE_SAMPLERS 16
39
40/* The HW can do 16384 (15), but we run into hangs when we expose that. */
41#define V3D_MAX_MIP_LEVELS 13
42
43#define V3D_MAX_SAMPLES 4
44
45#define V3D_MAX_DRAW_BUFFERS 4
46
47#endif /* V3D_LIMITS_H */
48