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compute-runtime/shared/source/os_interface/linux/ioctl_helper.cpp

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/*
* Copyright (C) 2021-2022 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
*/
#include "shared/source/os_interface/linux/ioctl_helper.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/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/drm_wrappers.h"
#include "shared/source/os_interface/linux/i915.h"
#include "shared/source/os_interface/linux/os_context_linux.h"
#include <sstream>
namespace NEO {
uint32_t IoctlHelper::ioctl(DrmIoctl request, void *arg) {
return drm.ioctl(request, arg);
}
void IoctlHelper::fillExecObject(ExecObject &execObject, uint32_t handle, uint64_t gpuAddress, uint32_t drmContextId, bool bindInfo, bool isMarkedForCapture) {
auto &drmExecObject = *reinterpret_cast<drm_i915_gem_exec_object2 *>(execObject.data);
drmExecObject.handle = handle;
drmExecObject.relocation_count = 0; //No relocations, we are SoftPinning
drmExecObject.relocs_ptr = 0ul;
drmExecObject.alignment = 0;
drmExecObject.offset = gpuAddress;
drmExecObject.flags = EXEC_OBJECT_PINNED | EXEC_OBJECT_SUPPORTS_48B_ADDRESS;
if (DebugManager.flags.UseAsyncDrmExec.get() == 1) {
drmExecObject.flags |= static_cast<decltype(drmExecObject.flags)>(EXEC_OBJECT_ASYNC);
}
if (isMarkedForCapture) {
drmExecObject.flags |= static_cast<decltype(drmExecObject.flags)>(EXEC_OBJECT_CAPTURE);
}
drmExecObject.rsvd1 = drmContextId;
drmExecObject.rsvd2 = 0;
if (bindInfo) {
drmExecObject.handle = 0u;
}
}
void IoctlHelper::logExecObject(const ExecObject &execObject, std::stringstream &logger, size_t size) {
auto &drmExecObject = *reinterpret_cast<const drm_i915_gem_exec_object2 *>(execObject.data);
logger << "Buffer Object = { handle: BO-" << drmExecObject.handle
<< ", address range: 0x" << reinterpret_cast<void *>(drmExecObject.offset)
<< " - 0x" << reinterpret_cast<void *>(ptrOffset(drmExecObject.offset, size))
<< ", flags: " << std::hex << drmExecObject.flags << std::dec
<< ", size: " << size << " }\n";
}
void IoctlHelper::fillExecBuffer(ExecBuffer &execBuffer, uintptr_t buffersPtr, uint32_t bufferCount, uint32_t startOffset, uint32_t size, uint64_t flags, uint32_t drmContextId) {
auto &drmExecBuffer = *reinterpret_cast<drm_i915_gem_execbuffer2 *>(execBuffer.data);
drmExecBuffer.buffers_ptr = buffersPtr;
drmExecBuffer.buffer_count = bufferCount;
drmExecBuffer.batch_start_offset = startOffset;
drmExecBuffer.batch_len = size;
drmExecBuffer.flags = flags;
drmExecBuffer.rsvd1 = drmContextId;
}
void IoctlHelper::logExecBuffer(const ExecBuffer &execBuffer, std::stringstream &logger) {
auto &drmExecBuffer = *reinterpret_cast<const drm_i915_gem_execbuffer2 *>(execBuffer.data);
logger << "drm_i915_gem_execbuffer2 { "
<< "buffer_ptr: " + std::to_string(drmExecBuffer.buffers_ptr)
<< ", buffer_count: " + std::to_string(drmExecBuffer.buffer_count)
<< ", batch_start_offset: " + std::to_string(drmExecBuffer.batch_start_offset)
<< ", batch_len: " + std::to_string(drmExecBuffer.batch_len)
<< ", flags: " + std::to_string(drmExecBuffer.flags)
<< ", rsvd1: " + std::to_string(drmExecBuffer.rsvd1)
<< " }\n";
}
uint32_t IoctlHelper::createDrmContext(Drm &drm, OsContextLinux &osContext, uint32_t drmVmId, uint32_t deviceIndex) {
const auto numberOfCCS = drm.getRootDeviceEnvironment().getHardwareInfo()->gtSystemInfo.CCSInfo.NumberOfCCSEnabled;
const bool debuggableContext = drm.isContextDebugSupported() && drm.getRootDeviceEnvironment().executionEnvironment.isDebuggingEnabled() && !osContext.isInternalEngine();
const bool debuggableContextCooperative = debuggableContext && numberOfCCS > 0;
auto drmContextId = drm.createDrmContext(drmVmId, drm.isVmBindAvailable(), osContext.isCooperativeEngine() || debuggableContextCooperative);
if (drm.areNonPersistentContextsSupported()) {
drm.setNonPersistentContext(drmContextId);
}
if (drm.getRootDeviceEnvironment().executionEnvironment.isDebuggingEnabled()) {
drm.setUnrecoverableContext(drmContextId);
}
if (debuggableContext) {
drm.setContextDebugFlag(drmContextId);
}
if (drm.isPreemptionSupported() && osContext.isLowPriority()) {
drm.setLowPriorityContextParam(drmContextId);
}
auto engineFlag = drm.bindDrmContext(drmContextId, deviceIndex, osContext.getEngineType(), osContext.isEngineInstanced());
osContext.setEngineFlag(engineFlag);
return drmContextId;
}
std::vector<EngineCapabilities> IoctlHelper::translateToEngineCaps(const std::vector<uint8_t> &data) {
auto engineInfo = reinterpret_cast<const drm_i915_query_engine_info *>(data.data());
std::vector<EngineCapabilities> engines;
engines.reserve(engineInfo->num_engines);
for (uint32_t i = 0; i < engineInfo->num_engines; i++) {
EngineCapabilities engine{};
engine.capabilities = engineInfo->engines[i].capabilities;
engine.engine.engineClass = engineInfo->engines[i].engine.engine_class;
engine.engine.engineInstance = engineInfo->engines[i].engine.engine_instance;
engines.push_back(engine);
}
return engines;
}
std::vector<MemoryRegion> IoctlHelper::translateToMemoryRegions(const std::vector<uint8_t> &regionInfo) {
auto *data = reinterpret_cast<const drm_i915_query_memory_regions *>(regionInfo.data());
auto memRegions = std::vector<MemoryRegion>(data->num_regions);
for (uint32_t i = 0; i < data->num_regions; i++) {
memRegions[i].probedSize = data->regions[i].probed_size;
memRegions[i].unallocatedSize = data->regions[i].unallocated_size;
memRegions[i].region.memoryClass = data->regions[i].region.memory_class;
memRegions[i].region.memoryInstance = data->regions[i].region.memory_instance;
}
return memRegions;
}
bool IoctlHelper::setDomainCpu(uint32_t handle, bool writeEnable) {
drm_i915_gem_set_domain setDomain{};
setDomain.handle = handle;
setDomain.read_domains = I915_GEM_DOMAIN_CPU;
setDomain.write_domain = writeEnable ? I915_GEM_DOMAIN_CPU : 0;
return this->ioctl(DrmIoctl::GemSetDomain, &setDomain) == 0u;
}
uint32_t IoctlHelper::getFlagsForPrimeHandleToFd() const {
return DRM_CLOEXEC | DRM_RDWR;
}
unsigned int IoctlHelper::getIoctlRequestValueBase(DrmIoctl ioctlRequest) const {
switch (ioctlRequest) {
case DrmIoctl::Getparam:
return DRM_IOCTL_I915_GETPARAM;
case DrmIoctl::GemExecbuffer2:
return DRM_IOCTL_I915_GEM_EXECBUFFER2;
case DrmIoctl::GemWait:
return DRM_IOCTL_I915_GEM_WAIT;
case DrmIoctl::GemClose:
return DRM_IOCTL_GEM_CLOSE;
case DrmIoctl::GemUserptr:
return DRM_IOCTL_I915_GEM_USERPTR;
case DrmIoctl::GemCreate:
return DRM_IOCTL_I915_GEM_CREATE;
case DrmIoctl::GemSetDomain:
return DRM_IOCTL_I915_GEM_SET_DOMAIN;
case DrmIoctl::GemSetTiling:
return DRM_IOCTL_I915_GEM_SET_TILING;
case DrmIoctl::GemGetTiling:
return DRM_IOCTL_I915_GEM_GET_TILING;
case DrmIoctl::GemContextCreateExt:
return DRM_IOCTL_I915_GEM_CONTEXT_CREATE_EXT;
case DrmIoctl::GemContextDestroy:
return DRM_IOCTL_I915_GEM_CONTEXT_DESTROY;
case DrmIoctl::RegRead:
return DRM_IOCTL_I915_REG_READ;
case DrmIoctl::GetResetStats:
return DRM_IOCTL_I915_GET_RESET_STATS;
case DrmIoctl::GemContextGetparam:
return DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM;
case DrmIoctl::GemContextSetparam:
return DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM;
case DrmIoctl::Query:
return DRM_IOCTL_I915_QUERY;
case DrmIoctl::PrimeFdToHandle:
return DRM_IOCTL_PRIME_FD_TO_HANDLE;
case DrmIoctl::PrimeHandleToFd:
return DRM_IOCTL_PRIME_HANDLE_TO_FD;
case DrmIoctl::GemMmapOffset:
return DRM_IOCTL_I915_GEM_MMAP_OFFSET;
case DrmIoctl::GemVmCreate:
return DRM_IOCTL_I915_GEM_VM_CREATE;
case DrmIoctl::GemVmDestroy:
return DRM_IOCTL_I915_GEM_VM_DESTROY;
default:
UNRECOVERABLE_IF(true);
return 0u;
}
}
int IoctlHelper::getDrmParamValueBase(DrmParam drmParam) const {
switch (drmParam) {
case DrmParam::ContextCreateExtSetparam:
return I915_CONTEXT_CREATE_EXT_SETPARAM;
case DrmParam::ContextCreateFlagsUseExtensions:
return I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS;
case DrmParam::ContextEnginesExtLoadBalance:
return I915_CONTEXT_ENGINES_EXT_LOAD_BALANCE;
case DrmParam::ContextParamEngines:
return I915_CONTEXT_PARAM_ENGINES;
case DrmParam::ContextParamGttSize:
return I915_CONTEXT_PARAM_GTT_SIZE;
case DrmParam::ContextParamPersistence:
return I915_CONTEXT_PARAM_PERSISTENCE;
case DrmParam::ContextParamPriority:
return I915_CONTEXT_PARAM_PRIORITY;
case DrmParam::ContextParamRecoverable:
return I915_CONTEXT_PARAM_RECOVERABLE;
case DrmParam::ContextParamSseu:
return I915_CONTEXT_PARAM_SSEU;
case DrmParam::ContextParamVm:
return I915_CONTEXT_PARAM_VM;
case DrmParam::EngineClassRender:
return drm_i915_gem_engine_class::I915_ENGINE_CLASS_RENDER;
case DrmParam::EngineClassCopy:
return drm_i915_gem_engine_class::I915_ENGINE_CLASS_COPY;
case DrmParam::EngineClassVideo:
return drm_i915_gem_engine_class::I915_ENGINE_CLASS_VIDEO;
case DrmParam::EngineClassVideoEnhance:
return drm_i915_gem_engine_class::I915_ENGINE_CLASS_VIDEO_ENHANCE;
case DrmParam::EngineClassInvalid:
return drm_i915_gem_engine_class::I915_ENGINE_CLASS_INVALID;
case DrmParam::EngineClassInvalidNone:
return I915_ENGINE_CLASS_INVALID_NONE;
case DrmParam::ExecBlt:
return I915_EXEC_BLT;
case DrmParam::ExecDefault:
return I915_EXEC_DEFAULT;
case DrmParam::ExecNoReloc:
return I915_EXEC_NO_RELOC;
case DrmParam::ExecRender:
return I915_EXEC_RENDER;
case DrmParam::MemoryClassDevice:
return drm_i915_gem_memory_class::I915_MEMORY_CLASS_DEVICE;
case DrmParam::MemoryClassSystem:
return drm_i915_gem_memory_class::I915_MEMORY_CLASS_SYSTEM;
case DrmParam::MmapOffsetWb:
return I915_MMAP_OFFSET_WB;
case DrmParam::MmapOffsetWc:
return I915_MMAP_OFFSET_WC;
case DrmParam::ParamChipsetId:
return I915_PARAM_CHIPSET_ID;
case DrmParam::ParamRevision:
return I915_PARAM_REVISION;
case DrmParam::ParamHasExecSoftpin:
return I915_PARAM_HAS_EXEC_SOFTPIN;
case DrmParam::ParamHasPooledEu:
return I915_PARAM_HAS_POOLED_EU;
case DrmParam::ParamHasScheduler:
return I915_PARAM_HAS_SCHEDULER;
case DrmParam::ParamEuTotal:
return I915_PARAM_EU_TOTAL;
case DrmParam::ParamSubsliceTotal:
return I915_PARAM_SUBSLICE_TOTAL;
case DrmParam::ParamMinEuInPool:
return I915_PARAM_MIN_EU_IN_POOL;
case DrmParam::ParamCsTimestampFrequency:
return I915_PARAM_CS_TIMESTAMP_FREQUENCY;
case DrmParam::QueryEngineInfo:
return DRM_I915_QUERY_ENGINE_INFO;
case DrmParam::QueryMemoryRegions:
return DRM_I915_QUERY_MEMORY_REGIONS;
case DrmParam::QueryTopologyInfo:
return DRM_I915_QUERY_TOPOLOGY_INFO;
case DrmParam::SchedulerCapPreemption:
return I915_SCHEDULER_CAP_PREEMPTION;
case DrmParam::TilingNone:
return I915_TILING_NONE;
case DrmParam::TilingY:
return I915_TILING_Y;
default:
UNRECOVERABLE_IF(true);
return 0;
}
}
std::string IoctlHelper::getDrmParamStringBase(DrmParam drmParam) const {
switch (drmParam) {
case DrmParam::ParamChipsetId:
return "I915_PARAM_CHIPSET_ID";
case DrmParam::ParamRevision:
return "I915_PARAM_REVISION";
case DrmParam::ParamHasExecSoftpin:
return "I915_PARAM_HAS_EXEC_SOFTPIN";
case DrmParam::ParamHasPooledEu:
return "I915_PARAM_HAS_POOLED_EU";
case DrmParam::ParamHasScheduler:
return "I915_PARAM_HAS_SCHEDULER";
case DrmParam::ParamEuTotal:
return "I915_PARAM_EU_TOTAL";
case DrmParam::ParamSubsliceTotal:
return "I915_PARAM_SUBSLICE_TOTAL";
case DrmParam::ParamMinEuInPool:
return "I915_PARAM_MIN_EU_IN_POOL";
case DrmParam::ParamCsTimestampFrequency:
return "I915_PARAM_CS_TIMESTAMP_FREQUENCY";
default:
UNRECOVERABLE_IF(true);
return "";
}
}
std::string IoctlHelper::getIoctlStringBase(DrmIoctl ioctlRequest) const {
switch (ioctlRequest) {
case DrmIoctl::GemExecbuffer2:
return "DRM_IOCTL_I915_GEM_EXECBUFFER2";
case DrmIoctl::GemWait:
return "DRM_IOCTL_I915_GEM_WAIT";
case DrmIoctl::GemClose:
return "DRM_IOCTL_GEM_CLOSE";
case DrmIoctl::GemUserptr:
return "DRM_IOCTL_I915_GEM_USERPTR";
case DrmIoctl::Getparam:
return "DRM_IOCTL_I915_GETPARAM";
case DrmIoctl::GemCreate:
return "DRM_IOCTL_I915_GEM_CREATE";
case DrmIoctl::GemSetDomain:
return "DRM_IOCTL_I915_GEM_SET_DOMAIN";
case DrmIoctl::GemSetTiling:
return "DRM_IOCTL_I915_GEM_SET_TILING";
case DrmIoctl::GemGetTiling:
return "DRM_IOCTL_I915_GEM_GET_TILING";
case DrmIoctl::GemContextCreateExt:
return "DRM_IOCTL_I915_GEM_CONTEXT_CREATE_EXT";
case DrmIoctl::GemContextDestroy:
return "DRM_IOCTL_I915_GEM_CONTEXT_DESTROY";
case DrmIoctl::RegRead:
return "DRM_IOCTL_I915_REG_READ";
case DrmIoctl::GetResetStats:
return "DRM_IOCTL_I915_GET_RESET_STATS";
case DrmIoctl::GemContextGetparam:
return "DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM";
case DrmIoctl::GemContextSetparam:
return "DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM";
case DrmIoctl::Query:
return "DRM_IOCTL_I915_QUERY";
case DrmIoctl::PrimeFdToHandle:
return "DRM_IOCTL_PRIME_FD_TO_HANDLE";
case DrmIoctl::PrimeHandleToFd:
return "DRM_IOCTL_PRIME_HANDLE_TO_FD";
case DrmIoctl::GemMmapOffset:
return "DRM_IOCTL_I915_GEM_MMAP_OFFSET";
case DrmIoctl::GemVmCreate:
return "DRM_IOCTL_I915_GEM_VM_CREATE";
case DrmIoctl::GemVmDestroy:
return "DRM_IOCTL_I915_GEM_VM_DESTROY";
default:
UNRECOVERABLE_IF(true);
return "";
}
}
} // namespace NEO
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