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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* Copyright (C) 2020-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "level_zero/tools/source/sysman/engine/linux/os_engine_imp.h"
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/os_interface/linux/drm_neo.h"
#include "shared/source/os_interface/linux/engine_info.h"
#include "shared/source/os_interface/linux/i915.h"
#include "shared/source/os_interface/linux/sys_calls.h"
#include "level_zero/tools/source/sysman/linux/os_sysman_imp.h"
#include "level_zero/tools/source/sysman/linux/pmu/pmu.h"
#include <linux/perf_event.h>
namespace L0 {
constexpr auto I915_SAMPLE_BUSY = NEO::I915::drm_i915_pmu_engine_sample::I915_SAMPLE_BUSY; // NOLINT(readability-identifier-naming)
static const std::multimap<__u16, zes_engine_group_t> i915ToEngineMap = {
{static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_RENDER), ZES_ENGINE_GROUP_RENDER_SINGLE},
{static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_VIDEO), ZES_ENGINE_GROUP_MEDIA_DECODE_SINGLE},
{static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_VIDEO), ZES_ENGINE_GROUP_MEDIA_ENCODE_SINGLE},
{static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_COPY), ZES_ENGINE_GROUP_COPY_SINGLE},
{static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_VIDEO_ENHANCE), ZES_ENGINE_GROUP_MEDIA_ENHANCEMENT_SINGLE}};
static const std::multimap<zes_engine_group_t, __u16> engineToI915Map = {
{ZES_ENGINE_GROUP_RENDER_SINGLE, static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_RENDER)},
{ZES_ENGINE_GROUP_MEDIA_DECODE_SINGLE, static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_VIDEO)},
{ZES_ENGINE_GROUP_MEDIA_ENCODE_SINGLE, static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_VIDEO)},
{ZES_ENGINE_GROUP_COPY_SINGLE, static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_COPY)},
{ZES_ENGINE_GROUP_MEDIA_ENHANCEMENT_SINGLE, static_cast<__u16>(drm_i915_gem_engine_class::I915_ENGINE_CLASS_VIDEO_ENHANCE)}};
ze_result_t LinuxEngineImp::getActivity(zes_engine_stats_t *pStats) {
if (initStatus != ZE_RESULT_SUCCESS) {
return initStatus;
}
uint64_t data[2] = {};
auto ret = pPmuInterface->pmuRead(static_cast<int>(fdList[0].first), data, sizeof(data));
if (ret < 0) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
// In data[], First u64 is "active time", And second u64 is "timestamp". Both in nanoseconds
pStats->activeTime = data[0] / microSecondsToNanoSeconds;
pStats->timestamp = data[1] / microSecondsToNanoSeconds;
return ZE_RESULT_SUCCESS;
}
ze_result_t LinuxEngineImp::getProperties(zes_engine_properties_t &properties) {
properties.type = engineGroup;
properties.onSubdevice = onSubDevice;
properties.subdeviceId = subDeviceId;
return ZE_RESULT_SUCCESS;
}
void LinuxEngineImp::checkErrorNumberAndUpdateStatus() {
if (errno == EMFILE || errno == ENFILE) {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Engine Handles could not be created because system has run out of file handles. Suggested action is to increase the file handle limit. \n");
initStatus = ZE_RESULT_ERROR_DEPENDENCY_UNAVAILABLE;
} else {
NEO::printDebugString(NEO::debugManager.flags.PrintDebugMessages.get(), stderr, "Error@ %s():No valid Filedescriptors: Engine Module is not supported \n", __FUNCTION__);
initStatus = ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
}
void LinuxEngineImp::init() {
auto i915EngineClass = engineToI915Map.find(engineGroup);
if (i915EngineClass == engineToI915Map.end()) {
checkErrorNumberAndUpdateStatus();
return;
}
vfConfigs.clear();
// I915_PMU_ENGINE_BUSY macro provides the perf type config which we want to listen to get the engine busyness.
auto fd = pPmuInterface->pmuInterfaceOpen(I915_PMU_ENGINE_BUSY(i915EngineClass->second, engineInstance), -1, PERF_FORMAT_TOTAL_TIME_ENABLED);
if (fd >= 0) {
fdList.push_back(std::make_pair(fd, -1));
} else {
checkErrorNumberAndUpdateStatus();
}
}
ze_result_t LinuxEngineImp::getActivityExt(uint32_t *pCount, zes_engine_stats_t *pStats) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
void LinuxEngineImp::cleanup() {
for (auto &fdPair : fdList) {
DEBUG_BREAK_IF(fdPair.first < 0);
NEO::SysCalls::close(static_cast<int>(fdPair.first));
}
fdList.clear();
}
LinuxEngineImp::~LinuxEngineImp() {
cleanup();
}
void LinuxEngineImp::getInstancesFromEngineInfo(NEO::EngineInfo *engineInfo, std::set<std::pair<zes_engine_group_t, EngineInstanceSubDeviceId>> &engineGroupInstance) {
for (const auto &info : engineInfo->getEngineInfos()) {
auto i915ToEngineMapRange = i915ToEngineMap.equal_range(static_cast<__u16>(info.engine.engineClass));
for (auto l0EngineEntryInMap = i915ToEngineMapRange.first; l0EngineEntryInMap != i915ToEngineMapRange.second; l0EngineEntryInMap++) {
auto l0EngineType = l0EngineEntryInMap->second;
engineGroupInstance.insert({l0EngineType, {static_cast<uint32_t>(info.engine.engineInstance), 0}});
}
}
}
ze_result_t LinuxEngineImp::isEngineModuleSupported() {
return initStatus;
}
LinuxEngineImp::LinuxEngineImp(OsSysman *pOsSysman, zes_engine_group_t type, uint32_t engineInstance, uint32_t subDeviceId, ze_bool_t onSubDevice) : engineGroup(type), engineInstance(engineInstance), subDeviceId(subDeviceId), onSubDevice(onSubDevice) {
LinuxSysmanImp *pLinuxSysmanImp = static_cast<LinuxSysmanImp *>(pOsSysman);
pDrm = &pLinuxSysmanImp->getDrm();
pDevice = pLinuxSysmanImp->getDeviceHandle();
pPmuInterface = pLinuxSysmanImp->getPmuInterface();
init();
if (initStatus != ZE_RESULT_SUCCESS) {
cleanup();
}
}
} // namespace L0
|
