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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
/*
* Copyright (C) 2018-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/linux/os_context_linux.h"
#include "shared/source/debug_settings/debug_settings_manager.h"
#include "shared/source/execution_environment/execution_environment.h"
#include "shared/source/execution_environment/root_device_environment.h"
#include "shared/source/helpers/engine_node_helper.h"
#include "shared/source/helpers/hw_info.h"
#include "shared/source/helpers/ptr_math.h"
#include "shared/source/os_interface/linux/drm_neo.h"
#include "shared/source/os_interface/linux/ioctl_helper.h"
#include "shared/source/os_interface/linux/os_library_linux.h"
#include "shared/source/os_interface/os_context.h"
#include "shared/source/os_interface/os_interface.h"
#include "shared/source/os_interface/product_helper.h"
#include "shared/source/os_interface/sys_calls_common.h"
#include "shared/source/release_helper/release_helper.h"
namespace NEO {
OsContext *OsContextLinux::create(OSInterface *osInterface, uint32_t rootDeviceIndex, uint32_t contextId, const EngineDescriptor &engineDescriptor) {
if (osInterface && osInterface->getDriverModel()->getDriverModelType() == DriverModelType::drm) {
return new OsContextLinux(*osInterface->getDriverModel()->as<Drm>(), rootDeviceIndex, contextId, engineDescriptor);
}
return new OsContext(rootDeviceIndex, contextId, engineDescriptor);
}
OsContextLinux::OsContextLinux(Drm &drm, uint32_t rootDeviceIndex, uint32_t contextId, const EngineDescriptor &engineDescriptor)
: OsContext(rootDeviceIndex, contextId, engineDescriptor),
drm(drm) {
pagingFence.fill(0u);
fenceVal.fill(0u);
this->isOpenVinoLoaded();
}
bool OsContextLinux::initializeContext(bool allocateInterrupt) {
auto hwInfo = drm.getRootDeviceEnvironment().getHardwareInfo();
auto defaultEngineType = getChosenEngineType(*hwInfo);
if (engineType == defaultEngineType && !isLowPriority() && !isInternalEngine()) {
this->setDefaultContext(true);
}
bool submitDirect = false;
this->isDirectSubmissionAvailable(*drm.getRootDeviceEnvironment().getHardwareInfo(), submitDirect);
if (drm.isPerContextVMRequired()) {
this->drmVmIds.resize(deviceBitfield.size(), 0);
}
for (auto deviceIndex = 0u; deviceIndex < deviceBitfield.size(); deviceIndex++) {
if (deviceBitfield.test(deviceIndex)) {
auto drmVmId = drm.getVirtualMemoryAddressSpace(deviceIndex);
if (drm.isPerContextVMRequired()) {
drmVmId = deviceIndex;
[[maybe_unused]] auto ret = drm.createDrmVirtualMemory(drmVmId);
DEBUG_BREAK_IF(drmVmId == 0);
DEBUG_BREAK_IF(ret != 0);
if (ret != 0) {
drmVmId = 0;
}
UNRECOVERABLE_IF(this->drmVmIds.size() <= deviceIndex);
this->drmVmIds[deviceIndex] = drmVmId;
}
auto drmContextId = drm.getIoctlHelper()->createDrmContext(drm, *this, drmVmId, deviceIndex, allocateInterrupt);
if (drmContextId < 0) {
return false;
}
if (drm.isPerContextVMRequired() && this->drmVmIds[deviceIndex] == 0) {
drmVmId = 0;
[[maybe_unused]] auto ret = drm.queryVmId(drmContextId, drmVmId);
DEBUG_BREAK_IF(drmVmId == 0);
DEBUG_BREAK_IF(ret != 0);
this->drmVmIds[deviceIndex] = drmVmId;
}
this->drmContextIds.push_back(drmContextId);
}
}
return true;
}
void OsContextLinux::isOpenVinoLoaded() {
std::call_once(this->ovLoadedFlag, [this]() {
this->ovLoaded = NEO::Linux::isLibraryLoaded("libopenvino_intel_gpu_plugin.so");
});
}
bool OsContextLinux::isDirectSubmissionSupported() const {
auto &rootDeviceEnvironment = this->getDrm().getRootDeviceEnvironment();
auto &productHelper = rootDeviceEnvironment.getHelper<ProductHelper>();
const auto releaseHelper = rootDeviceEnvironment.getReleaseHelper();
return (this->getDrm().isVmBindAvailable() || (this->ovLoaded && releaseHelper && releaseHelper->isDirectSubmissionLightSupported())) && productHelper.isDirectSubmissionSupported();
}
Drm &OsContextLinux::getDrm() const {
return this->drm;
}
bool OsContextLinux::isDirectSubmissionLightActive() const {
return this->isDirectSubmissionActive() && !this->getDrm().isVmBindAvailable();
}
void OsContextLinux::waitForPagingFence() {
for (auto drmIterator = 0u; drmIterator < this->deviceBitfield.size(); drmIterator++) {
if (this->deviceBitfield.test(drmIterator)) {
this->waitForBind(drmIterator);
}
}
}
void OsContextLinux::waitForBind(uint32_t drmIterator) {
auto fenceAddressAndValToWait = getFenceAddressAndValToWait(drmIterator, false);
const auto fenceAddressToWait = fenceAddressAndValToWait.first;
const auto fenceValToWait = fenceAddressAndValToWait.second;
if (fenceAddressToWait != 0u) {
drm.waitUserFence(0u, fenceAddressToWait, fenceValToWait, Drm::ValueWidth::u64, -1, drm.getIoctlHelper()->getWaitUserFenceSoftFlag(), false, NEO::InterruptId::notUsed, nullptr);
}
}
[[nodiscard]] std::pair<uint64_t, uint64_t> OsContextLinux::getFenceAddressAndValToWait(uint32_t vmHandleId, bool isLocked) {
if (drm.isPerContextVMRequired()) {
std::pair<uint64_t, uint64_t> fenceAddressAndValToWait = std::make_pair(0, 0);
std::unique_lock<std::mutex> lock;
if (!isLocked) {
lock = drm.lockBindFenceMutex();
}
if (!(pagingFence[vmHandleId] >= fenceVal[vmHandleId])) {
auto fenceAddress = castToUint64(&this->pagingFence[vmHandleId]);
auto fenceValue = this->fenceVal[vmHandleId];
fenceAddressAndValToWait = std::make_pair(fenceAddress, fenceValue);
}
if (!isLocked) {
lock.unlock();
}
return fenceAddressAndValToWait;
} else {
return drm.getFenceAddressAndValToWait(vmHandleId, isLocked);
}
}
void OsContextLinux::reInitializeContext() {}
uint64_t OsContextLinux::getOfflineDumpContextId(uint32_t deviceIndex) const {
if (deviceIndex < drmContextIds.size()) {
const auto processId = SysCalls::getProcessId();
const auto drmContextId = drmContextIds[deviceIndex];
return static_cast<uint64_t>(processId) << 32 |
static_cast<uint64_t>(drmContextId);
}
return 0;
}
OsContextLinux::~OsContextLinux() {
if (contextInitialized) {
for (auto drmContextId : drmContextIds) {
drm.destroyDrmContext(drmContextId);
}
}
drmContextIds.clear();
drmVmIds.clear();
}
} // namespace NEO
|
