1/*
2 * Copyright © 2017 Advanced Micro Devices, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 */
24
25#include <ctype.h>
26#include <stdio.h>
27#include <stdlib.h>
28#include <stdint.h>
29#include <string.h>
30#include <unistd.h>
31#include <errno.h>
32
33#include "xf86drm.h"
34#include "amdgpu_drm.h"
35#include "amdgpu_internal.h"
36
37static int parse_one_line(struct amdgpu_device *dev, const char *line)
38{
39	char *buf, *saveptr;
40	char *s_did;
41	uint32_t did;
42	char *s_rid;
43	uint32_t rid;
44	char *s_name;
45	char *endptr;
46	int r = -EINVAL;
47
48	/* ignore empty line and commented line */
49	if (strlen(line) == 0 || line[0] == '#')
50		return -EAGAIN;
51
52	buf = strdup(line);
53	if (!buf)
54		return -ENOMEM;
55
56	/* device id */
57	s_did = strtok_r(buf, ",", &saveptr);
58	if (!s_did)
59		goto out;
60
61	did = strtol(s_did, &endptr, 16);
62	if (*endptr)
63		goto out;
64
65	if (did != dev->info.asic_id) {
66		r = -EAGAIN;
67		goto out;
68	}
69
70	/* revision id */
71	s_rid = strtok_r(NULL, ",", &saveptr);
72	if (!s_rid)
73		goto out;
74
75	rid = strtol(s_rid, &endptr, 16);
76	if (*endptr)
77		goto out;
78
79	if (rid != dev->info.pci_rev_id) {
80		r = -EAGAIN;
81		goto out;
82	}
83
84	/* marketing name */
85	s_name = strtok_r(NULL, ",", &saveptr);
86	if (!s_name)
87		goto out;
88
89	/* trim leading whitespaces or tabs */
90	while (isblank(*s_name))
91		s_name++;
92	if (strlen(s_name) == 0)
93		goto out;
94
95	dev->marketing_name = strdup(s_name);
96	if (dev->marketing_name)
97		r = 0;
98	else
99		r = -ENOMEM;
100
101out:
102	free(buf);
103
104	return r;
105}
106
107void amdgpu_parse_asic_ids(struct amdgpu_device *dev)
108{
109	FILE *fp;
110	char *line = NULL;
111	size_t len = 0;
112	ssize_t n;
113	int line_num = 1;
114	int r = 0;
115
116	fp = fopen(AMDGPU_ASIC_ID_TABLE, "r");
117	if (!fp) {
118		fprintf(stderr, "%s: %s\n", AMDGPU_ASIC_ID_TABLE,
119			strerror(errno));
120		return;
121	}
122
123	/* 1st valid line is file version */
124	while ((n = getline(&line, &len, fp)) != -1) {
125		/* trim trailing newline */
126		if (line[n - 1] == '\n')
127			line[n - 1] = '\0';
128
129		/* ignore empty line and commented line */
130		if (strlen(line) == 0 || line[0] == '#') {
131			line_num++;
132			continue;
133		}
134
135		drmMsg("%s version: %s\n", AMDGPU_ASIC_ID_TABLE, line);
136		break;
137	}
138
139	while ((n = getline(&line, &len, fp)) != -1) {
140		/* trim trailing newline */
141		if (line[n - 1] == '\n')
142			line[n - 1] = '\0';
143
144		r = parse_one_line(dev, line);
145		if (r != -EAGAIN)
146			break;
147
148		line_num++;
149	}
150
151	if (r == -EINVAL) {
152		fprintf(stderr, "Invalid format: %s: line %d: %s\n",
153			AMDGPU_ASIC_ID_TABLE, line_num, line);
154	} else if (r && r != -EAGAIN) {
155		fprintf(stderr, "%s: Cannot parse ASIC IDs: %s\n",
156			__func__, strerror(-r));
157	}
158
159	free(line);
160	fclose(fp);
161}
162