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/*
* Copyright © 2017 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include "xf86drm.h"
#include "amdgpu_drm.h"
#include "amdgpu_internal.h"
static int parse_one_line(const char *line, struct amdgpu_asic_id *id)
{
char *buf, *saveptr;
char *s_did;
char *s_rid;
char *s_name;
char *endptr;
int r = 0;
buf = strdup(line);
if (!buf)
return -ENOMEM;
/* ignore empty line and commented line */
if (strlen(line) == 0 || line[0] == '#') {
r = -EAGAIN;
goto out;
}
/* device id */
s_did = strtok_r(buf, ",", &saveptr);
if (!s_did) {
r = -EINVAL;
goto out;
}
id->did = strtol(s_did, &endptr, 16);
if (*endptr) {
r = -EINVAL;
goto out;
}
/* revision id */
s_rid = strtok_r(NULL, ",", &saveptr);
if (!s_rid) {
r = -EINVAL;
goto out;
}
id->rid = strtol(s_rid, &endptr, 16);
if (*endptr) {
r = -EINVAL;
goto out;
}
/* marketing name */
s_name = strtok_r(NULL, ",", &saveptr);
if (!s_name) {
r = -EINVAL;
goto out;
}
/* trim leading whitespaces or tabs */
while (isblank(*s_name))
s_name++;
if (strlen(s_name) == 0) {
r = -EINVAL;
goto out;
}
id->marketing_name = strdup(s_name);
if (id->marketing_name == NULL) {
r = -EINVAL;
goto out;
}
out:
free(buf);
return r;
}
int amdgpu_parse_asic_ids(struct amdgpu_asic_id **p_asic_id_table)
{
struct amdgpu_asic_id *asic_id_table;
struct amdgpu_asic_id *id;
FILE *fp;
char *line = NULL;
size_t len = 0;
ssize_t n;
int line_num = 1;
size_t table_size = 0;
size_t table_max_size = AMDGPU_ASIC_ID_TABLE_NUM_ENTRIES;
int r = 0;
fp = fopen(AMDGPU_ASIC_ID_TABLE, "r");
if (!fp) {
fprintf(stderr, "%s: %s\n", AMDGPU_ASIC_ID_TABLE,
strerror(errno));
return -EINVAL;
}
asic_id_table = calloc(table_max_size + 1,
sizeof(struct amdgpu_asic_id));
if (!asic_id_table) {
r = -ENOMEM;
goto close;
}
/* 1st valid line is file version */
while ((n = getline(&line, &len, fp)) != -1) {
/* trim trailing newline */
if (line[n - 1] == '\n')
line[n - 1] = '\0';
/* ignore empty line and commented line */
if (strlen(line) == 0 || line[0] == '#') {
line_num++;
continue;
}
drmMsg("%s version: %s\n", AMDGPU_ASIC_ID_TABLE, line);
break;
}
while ((n = getline(&line, &len, fp)) != -1) {
if (table_size > table_max_size) {
/* double table size */
table_max_size *= 2;
id = realloc(asic_id_table, (table_max_size + 1) *
sizeof(struct amdgpu_asic_id));
if (!id) {
r = -ENOMEM;
goto free;
}
asic_id_table = id;
}
id = asic_id_table + table_size;
/* trim trailing newline */
if (line[n - 1] == '\n')
line[n - 1] = '\0';
r = parse_one_line(line, id);
if (r) {
if (r == -EAGAIN) {
line_num++;
continue;
}
fprintf(stderr, "Invalid format: %s: line %d: %s\n",
AMDGPU_ASIC_ID_TABLE, line_num, line);
goto free;
}
line_num++;
table_size++;
}
if (table_size != table_max_size) {
id = realloc(asic_id_table, (table_size + 1) *
sizeof(struct amdgpu_asic_id));
if (!id) {
r = -ENOMEM;
goto free;
}
asic_id_table = id;
}
/* end of table */
id = asic_id_table + table_size;
memset(id, 0, sizeof(struct amdgpu_asic_id));
free:
free(line);
if (r && asic_id_table) {
while (table_size--) {
id = asic_id_table + table_size;
free(id->marketing_name);
}
free(asic_id_table);
asic_id_table = NULL;
}
close:
fclose(fp);
*p_asic_id_table = asic_id_table;
return r;
}
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