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
|
/*
* Copyright (C) 2020-2021 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "level_zero/tools/source/sysman/standby/linux/os_standby_imp.h"
namespace L0 {
ze_result_t LinuxStandbyImp::osStandbyGetProperties(zes_standby_properties_t &properties) {
properties.pNext = nullptr;
properties.type = ZES_STANDBY_TYPE_GLOBAL;
properties.onSubdevice = isSubdevice;
properties.subdeviceId = subdeviceId;
return ZE_RESULT_SUCCESS;
}
bool LinuxStandbyImp::isStandbySupported(void) {
if (ZE_RESULT_SUCCESS == pSysfsAccess->canRead(standbyModeFile)) {
return true;
} else {
return false;
}
}
ze_result_t LinuxStandbyImp::getMode(zes_standby_promo_mode_t &mode) {
int currentMode = -1;
ze_result_t result = pSysfsAccess->read(standbyModeFile, currentMode);
if (ZE_RESULT_SUCCESS != result) {
if (result == ZE_RESULT_ERROR_NOT_AVAILABLE) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
if (standbyModeDefault == currentMode) {
mode = ZES_STANDBY_PROMO_MODE_DEFAULT;
} else if (standbyModeNever == currentMode) {
mode = ZES_STANDBY_PROMO_MODE_NEVER;
} else {
result = ZE_RESULT_ERROR_UNKNOWN;
}
return result;
}
ze_result_t LinuxStandbyImp::setMode(zes_standby_promo_mode_t mode) {
ze_result_t result = ZE_RESULT_ERROR_UNKNOWN;
if (ZES_STANDBY_PROMO_MODE_DEFAULT == mode) {
result = pSysfsAccess->write(standbyModeFile, standbyModeDefault);
} else {
result = pSysfsAccess->write(standbyModeFile, standbyModeNever);
}
if (ZE_RESULT_ERROR_NOT_AVAILABLE == result) {
result = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return result;
}
void LinuxStandbyImp::init() {
const std::string baseDir = "gt/gt" + std::to_string(subdeviceId) + "/";
if (pSysfsAccess->directoryExists(baseDir)) {
standbyModeFile = baseDir + "rc6_enable";
} else {
standbyModeFile = "power/rc6_enable";
}
}
LinuxStandbyImp::LinuxStandbyImp(OsSysman *pOsSysman, ze_bool_t onSubdevice, uint32_t subdeviceId) : isSubdevice(onSubdevice), subdeviceId(subdeviceId) {
LinuxSysmanImp *pLinuxSysmanImp = static_cast<LinuxSysmanImp *>(pOsSysman);
pSysfsAccess = &pLinuxSysmanImp->getSysfsAccess();
init();
}
OsStandby *OsStandby::create(OsSysman *pOsSysman, ze_bool_t onSubdevice, uint32_t subdeviceId) {
LinuxStandbyImp *pLinuxStandbyImp = new LinuxStandbyImp(pOsSysman, onSubdevice, subdeviceId);
return static_cast<OsStandby *>(pLinuxStandbyImp);
}
} // namespace L0
|
