1/*
2 * Copyright © 2020 Valve Corporation
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
25#include "freedreno_dev_info.h"
26#include "util/macros.h"
27
28/**
29 * Table entry for a single GPU version
30 */
31struct fd_dev_rec {
32   struct fd_dev_id id;
33   const char *name;
34   const struct fd_dev_info *info;
35};
36
37#include "freedreno_devices.h"
38
39/**
40 * Compare device 'id' against reference id ('ref') from gpu table.
41 */
42static bool
43dev_id_compare(const struct fd_dev_id *ref, const struct fd_dev_id *id)
44{
45   if (ref->gpu_id && id->gpu_id) {
46      return ref->gpu_id == id->gpu_id;
47   } else {
48      assert(ref->chip_id && id->chip_id);
49      /* Match on either:
50       * (a) exact match:
51       */
52      if (ref->chip_id == id->chip_id)
53         return true;
54      /* (b) device table entry has 0xff wildcard patch_id and core/
55       *     major/minor match:
56       */
57      if (((ref->chip_id & 0xff) == 0xff) &&
58            ((ref->chip_id & UINT64_C(0xffffff00)) ==
59             (id->chip_id & UINT64_C(0xffffff00))))
60         return true;
61#define WILDCARD_FUSE_ID UINT64_C(0x0000ffff00000000)
62      /* If the reference id has wildcard fuse-id value (ie. bits 47..32
63       * are all ones, then try matching ignoring the device fuse-id:
64       */
65      if ((ref->chip_id & WILDCARD_FUSE_ID) == WILDCARD_FUSE_ID) {
66         uint64_t chip_id = id->chip_id | WILDCARD_FUSE_ID;
67         /* (c) exact match (ignoring the fuse-id from kernel):
68          */
69         if (ref->chip_id == chip_id)
70            return true;
71         /* (d) device table entry has 0xff wildcard patch_id and core/
72          *     major/minor match (ignoring fuse-id from kernel):
73          */
74         if (((ref->chip_id & 0xff) == 0xff) &&
75               ((ref->chip_id & UINT64_C(0xffffff00)) ==
76                (chip_id & UINT64_C(0xffffff00))))
77            return true;
78      }
79      return false;
80   }
81}
82
83const struct fd_dev_info *
84fd_dev_info(const struct fd_dev_id *id)
85{
86   for (int i = 0; i < ARRAY_SIZE(fd_dev_recs); i++) {
87      if (dev_id_compare(&fd_dev_recs[i].id, id)) {
88         return fd_dev_recs[i].info;
89      }
90   }
91   return NULL;
92}
93
94const char *
95fd_dev_name(const struct fd_dev_id *id)
96{
97   for (int i = 0; i < ARRAY_SIZE(fd_dev_recs); i++) {
98      if (dev_id_compare(&fd_dev_recs[i].id, id)) {
99         return fd_dev_recs[i].name;
100      }
101   }
102   return NULL;
103}
104