1/*
2 * Copyright (C) 2019 Collabora, Ltd.
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 FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 */
23
24#ifndef __PANFROST_QUIRKS_H
25#define __PANFROST_QUIRKS_H
26
27/* Model-specific quirks requiring workarounds/etc. Quirks may be errata
28 * requiring a workaround, or features. We're trying to be quirk-positive
29 * here; quirky is the best! */
30
31/* Whether the GPU lacks the capability for hierarchical tiling, without an
32 * "Advanced Tiling Unit", instead requiring a single bin size for the entire
33 * framebuffer be selected by the driver */
34
35#define MIDGARD_NO_HIER_TILING (1 << 0)
36
37/* Whether this GPU lacks native multiple render target support and accordingly
38 * needs SFBDs instead, with complex lowering with ES3 */
39
40#define MIDGARD_SFBD (1 << 1)
41
42/* Whether fp16 is broken in the compiler. Hopefully this quirk will go away
43 * over time */
44
45#define MIDGARD_BROKEN_FP16 (1 << 2)
46
47/* What it says on the tin */
48#define HAS_SWIZZLES (1 << 4)
49
50/* bit 5 unused */
51
52/* Whether this GPU lacks support for any typed stores in blend shader,
53 * requiring packing instead */
54#define MIDGARD_NO_TYPED_BLEND_STORES (1 << 6)
55
56/* Whether this GPU lacks support for any typed loads, requiring packing */
57#define MIDGARD_NO_TYPED_BLEND_LOADS (1 << 7)
58
59/* Lack support for colour pack/unpack opcodes */
60#define NO_BLEND_PACKS (1 << 8)
61
62/* Has some missing formats for typed loads */
63#define MIDGARD_MISSING_LOADS (1 << 9)
64
65/* Lack support for AFBC */
66#define MIDGARD_NO_AFBC (1 << 10)
67
68/* Does this GPU support anisotropic filtering? */
69#define HAS_ANISOTROPIC (1 << 11)
70
71#define NO_TILE_ENABLE_MAP (1 << 12)
72
73/* Quirk collections common to particular uarchs */
74
75#define MIDGARD_QUIRKS (MIDGARD_BROKEN_FP16 | HAS_SWIZZLES \
76                | MIDGARD_NO_TYPED_BLEND_STORES \
77                | MIDGARD_MISSING_LOADS)
78
79#define BIFROST_QUIRKS NO_BLEND_PACKS
80
81static inline unsigned
82panfrost_get_quirks(unsigned gpu_id, unsigned gpu_revision)
83{
84        switch (gpu_id) {
85        case 0x600:
86        case 0x620:
87                return MIDGARD_QUIRKS | MIDGARD_SFBD
88                        | MIDGARD_NO_TYPED_BLEND_LOADS
89                        | NO_BLEND_PACKS | MIDGARD_NO_AFBC
90                        | NO_TILE_ENABLE_MAP;
91
92        case 0x720:
93                return MIDGARD_QUIRKS | MIDGARD_SFBD | MIDGARD_NO_HIER_TILING
94                        | MIDGARD_NO_AFBC | NO_TILE_ENABLE_MAP;
95
96        case 0x820:
97        case 0x830:
98                return MIDGARD_QUIRKS | MIDGARD_NO_HIER_TILING;
99
100        case 0x750:
101                return MIDGARD_QUIRKS;
102
103        case 0x860:
104        case 0x880:
105                return MIDGARD_QUIRKS;
106
107        case 0x6000: /* G71 */
108                return BIFROST_QUIRKS | HAS_SWIZZLES;
109
110        case 0x6221: /* G72 */
111                /* Anisotropic filtering is supported from r0p3 onwards */
112                return BIFROST_QUIRKS | HAS_SWIZZLES
113                        | (gpu_revision >= 0x30 ? HAS_ANISOTROPIC : 0);
114
115        case 0x7093: /* G31 */
116        case 0x7212: /* G52 */
117        case 0x7402: /* G52r1 */
118                return BIFROST_QUIRKS | HAS_ANISOTROPIC;
119
120        default:
121                unreachable("Unknown Panfrost GPU ID");
122        }
123}
124
125#endif
126