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/*
*
* Copyright (C) 2019-2025 Intel Corporation
*
* SPDX-License-Identifier: MIT
*
* @file zer_ldrddi_driver_ddi.cpp
*
*/
#include "ze_loader_internal.h"
namespace loader_driver_ddi
{
///////////////////////////////////////////////////////////////////////////////
/// @brief Intercept function for zerGetLastErrorDescription
__zedlllocal ze_result_t ZE_APICALL
zerGetLastErrorDescription(
const char** ppString ///< [in,out] pointer to a null-terminated array of characters describing
///< cause of error.
)
{
ze_result_t result = ZE_RESULT_SUCCESS;
error_state::getErrorDesc(ppString);
if (ppString && *ppString && strlen(*ppString) > 0)
{
return ZE_RESULT_SUCCESS;
}
// Check if the default driver supports DDI Handles
if (loader::context->defaultZerDriverHandle == nullptr) {
if (loader::context->zeDrivers.front().zerddiInitResult == ZE_RESULT_ERROR_UNSUPPORTED_FEATURE) {
return ZE_RESULT_ERROR_UNSUPPORTED_FEATURE;
}
return ZE_RESULT_ERROR_UNINITIALIZED;
}
auto dditable = reinterpret_cast<ze_handle_t*>( loader::context->defaultZerDriverHandle )->pRuntime;
if (dditable->isValidFlag == 0) {
return ZE_RESULT_ERROR_UNINITIALIZED;
}
// Check that api version in the driver is supported by this version of the API
if (dditable->version < ZE_API_VERSION_1_14) {
return ZE_RESULT_ERROR_UNSUPPORTED_VERSION;
}
// Check that the driver has the function pointer table init
if (dditable->Global == nullptr) {
return ZE_RESULT_ERROR_UNINITIALIZED;
}
auto pfnGetLastErrorDescription = dditable->Global->pfnGetLastErrorDescription;
if( nullptr == pfnGetLastErrorDescription ) {
return ZE_RESULT_ERROR_UNINITIALIZED;
}
// forward to device-driver
result = pfnGetLastErrorDescription( ppString );
return result;
}
///////////////////////////////////////////////////////////////////////////////
/// @brief Intercept function for zerTranslateDeviceHandleToIdentifier
__zedlllocal uint32_t ZE_APICALL
zerTranslateDeviceHandleToIdentifier(
ze_device_handle_t hDevice ///< [in] handle of the device
)
{
uint32_t result {};
// Check if the default driver supports DDI Handles
if (loader::context->defaultZerDriverHandle == nullptr) {
if (loader::context->zeDrivers.front().zerddiInitResult == ZE_RESULT_ERROR_UNSUPPORTED_FEATURE) {
error_state::setErrorDesc("ERROR UNSUPPORTED FEATURE");
return UINT32_MAX;
}
error_state::setErrorDesc("ERROR UNINITIALIZED");
return UINT32_MAX;
}
auto dditable = reinterpret_cast<ze_handle_t*>( loader::context->defaultZerDriverHandle )->pRuntime;
if (dditable->isValidFlag == 0) {
error_state::setErrorDesc("ERROR UNINITIALIZED");
return UINT32_MAX;
}
// Check that api version in the driver is supported by this version of the API
if (dditable->version < ZE_API_VERSION_1_14) {
error_state::setErrorDesc("ERROR UNSUPPORTED VERSION");
return UINT32_MAX;
}
// Check that the driver has the function pointer table init
if (dditable->Global == nullptr) {
error_state::setErrorDesc("ERROR UNINITIALIZED");
return UINT32_MAX;
}
auto pfnTranslateDeviceHandleToIdentifier = dditable->Global->pfnTranslateDeviceHandleToIdentifier;
if( nullptr == pfnTranslateDeviceHandleToIdentifier ) {
error_state::setErrorDesc("ERROR UNINITIALIZED");
return UINT32_MAX;
}
// forward to device-driver
result = pfnTranslateDeviceHandleToIdentifier( hDevice );
return result;
}
///////////////////////////////////////////////////////////////////////////////
/// @brief Intercept function for zerTranslateIdentifierToDeviceHandle
__zedlllocal ze_device_handle_t ZE_APICALL
zerTranslateIdentifierToDeviceHandle(
uint32_t identifier ///< [in] integer identifier of the device
)
{
ze_device_handle_t result {};
// Check if the default driver supports DDI Handles
if (loader::context->defaultZerDriverHandle == nullptr) {
if (loader::context->zeDrivers.front().zerddiInitResult == ZE_RESULT_ERROR_UNSUPPORTED_FEATURE) {
error_state::setErrorDesc("ERROR UNSUPPORTED FEATURE");
return nullptr;
}
error_state::setErrorDesc("ERROR UNINITIALIZED");
return nullptr;
}
auto dditable = reinterpret_cast<ze_handle_t*>( loader::context->defaultZerDriverHandle )->pRuntime;
if (dditable->isValidFlag == 0) {
error_state::setErrorDesc("ERROR UNINITIALIZED");
return nullptr;
}
// Check that api version in the driver is supported by this version of the API
if (dditable->version < ZE_API_VERSION_1_14) {
error_state::setErrorDesc("ERROR UNSUPPORTED VERSION");
return nullptr;
}
// Check that the driver has the function pointer table init
if (dditable->Global == nullptr) {
error_state::setErrorDesc("ERROR UNINITIALIZED");
return nullptr;
}
auto pfnTranslateIdentifierToDeviceHandle = dditable->Global->pfnTranslateIdentifierToDeviceHandle;
if( nullptr == pfnTranslateIdentifierToDeviceHandle ) {
error_state::setErrorDesc("ERROR UNINITIALIZED");
return nullptr;
}
// forward to device-driver
result = pfnTranslateIdentifierToDeviceHandle( identifier );
return result;
}
///////////////////////////////////////////////////////////////////////////////
/// @brief Intercept function for zerGetDefaultContext
__zedlllocal ze_context_handle_t ZE_APICALL
zerGetDefaultContext(
void
)
{
ze_context_handle_t result {};
// Check if the default driver supports DDI Handles
if (loader::context->defaultZerDriverHandle == nullptr) {
if (loader::context->zeDrivers.front().zerddiInitResult == ZE_RESULT_ERROR_UNSUPPORTED_FEATURE) {
error_state::setErrorDesc("ERROR UNSUPPORTED FEATURE");
return nullptr;
}
error_state::setErrorDesc("ERROR UNINITIALIZED");
return nullptr;
}
auto dditable = reinterpret_cast<ze_handle_t*>( loader::context->defaultZerDriverHandle )->pRuntime;
if (dditable->isValidFlag == 0) {
error_state::setErrorDesc("ERROR UNINITIALIZED");
return nullptr;
}
// Check that api version in the driver is supported by this version of the API
if (dditable->version < ZE_API_VERSION_1_14) {
error_state::setErrorDesc("ERROR UNSUPPORTED VERSION");
return nullptr;
}
// Check that the driver has the function pointer table init
if (dditable->Global == nullptr) {
error_state::setErrorDesc("ERROR UNINITIALIZED");
return nullptr;
}
auto pfnGetDefaultContext = dditable->Global->pfnGetDefaultContext;
if( nullptr == pfnGetDefaultContext ) {
error_state::setErrorDesc("ERROR UNINITIALIZED");
return nullptr;
}
// forward to device-driver
result = pfnGetDefaultContext( );
return result;
}
///////////////////////////////////////////////////////////////////////////////
/// @brief function for removing the ddi driver tables for zer
__zedlllocal void ZE_APICALL
zerDestroyDDiDriverTables(zer_dditable_driver_t* pDdiTable)
{
// Delete ddi tables
delete pDdiTable->Global;
delete pDdiTable;
}
} // namespace loader_driver_ddi
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