1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* PAPR Energy attributes sniff test
* This checks if the papr folders and contents are populated relating to
* the energy and frequency attributes
*
* Copyright 2022, Pratik Rajesh Sampat, IBM Corp.
*/
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <dirent.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include "utils.h"
enum energy_freq_attrs {
POWER_PERFORMANCE_MODE = 1,
IDLE_POWER_SAVER_STATUS = 2,
MIN_FREQ = 3,
STAT_FREQ = 4,
MAX_FREQ = 6,
PROC_FOLDING_STATUS = 8
};
enum type {
INVALID,
STR_VAL,
NUM_VAL
};
static int value_type(int id)
{
int val_type;
switch (id) {
case POWER_PERFORMANCE_MODE:
case IDLE_POWER_SAVER_STATUS:
val_type = STR_VAL;
break;
case MIN_FREQ:
case STAT_FREQ:
case MAX_FREQ:
case PROC_FOLDING_STATUS:
val_type = NUM_VAL;
break;
default:
val_type = INVALID;
}
return val_type;
}
static int verify_energy_info(void)
{
const char *path = "/sys/firmware/papr/energy_scale_info";
struct dirent *entry;
struct stat s;
DIR *dirp;
errno = 0;
if (stat(path, &s)) {
SKIP_IF(errno == ENOENT);
FAIL_IF(errno);
}
FAIL_IF(!S_ISDIR(s.st_mode));
dirp = opendir(path);
while ((entry = readdir(dirp)) != NULL) {
char file_name[64];
int id, attr_type;
FILE *f;
if (strcmp(entry->d_name, ".") == 0 ||
strcmp(entry->d_name, "..") == 0)
continue;
id = atoi(entry->d_name);
attr_type = value_type(id);
FAIL_IF(attr_type == INVALID);
/* Check if the files exist and have data in them */
sprintf(file_name, "%s/%d/desc", path, id);
f = fopen(file_name, "r");
FAIL_IF(!f);
FAIL_IF(fgetc(f) == EOF);
sprintf(file_name, "%s/%d/value", path, id);
f = fopen(file_name, "r");
FAIL_IF(!f);
FAIL_IF(fgetc(f) == EOF);
if (attr_type == STR_VAL) {
sprintf(file_name, "%s/%d/value_desc", path, id);
f = fopen(file_name, "r");
FAIL_IF(!f);
FAIL_IF(fgetc(f) == EOF);
}
}
return 0;
}
int main(void)
{
return test_harness(verify_energy_info, "papr_attributes");
}
|
