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/*
* Copyright (c) 2007-2020, Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
//!
//! \file cm_mem_os.h
//! \brief Contains CM memory function definitions
//!
#pragma once
#include <iostream>
#include "cpuid.h"
#include <smmintrin.h>
typedef uintptr_t UINT_PTR;
#define __fastcall
#define __noop
#ifdef __try
#undef __try
#endif
#define __try try
#ifdef __except
#undef __except
#endif
#define EXCEPTION_EXECUTE_HANDLER std::exception const& e
#define __except(e) catch(e)
#ifndef __EXCEPTIONS
// If -fno-exceptions, transform error handling code to work without it
#define NO_EXCEPTION_HANDLING 1
#endif
#if NO_EXCEPTION_HANDLING || ANDROID
#define try if (true)
#ifndef catch
#define catch(x) if (false)
#endif
#define throw(...)
#endif
#define CM_CPU_FASTCOPY_THRESHOLD 1024
/*****************************************************************************\
Inline Function:
Prefetch
Description:
executes __asm prefetchnta
\*****************************************************************************/
inline void Prefetch( const void* ptr )
{
__asm__("prefetchnta 0(%0)"::"r"(ptr));
}
inline bool TestSSE4_1( void )
{
bool success = true;
#ifndef NO_EXCEPTION_HANDLING
__try
{
#endif //NO_EXCEPTION_HANDLING
if ( sizeof(void *) == 4) //32-bit Linux
{
__asm__ __volatile__ (".byte 0x66");
__asm__ __volatile__ (".byte 0x0f");
__asm__ __volatile__ (".byte 0x38");
__asm__ __volatile__ (".byte 0x17");
__asm__ __volatile__ (".byte 0xc1");
}
else //64-bit Linux
{
success = true;
}
#ifndef NO_EXCEPTION_HANDLING
}
__except( EXCEPTION_EXECUTE_HANDLER )
{
success = false;
}
#endif // NO_EXCEPTION_HANDLING
return success;
}
/*****************************************************************************\
Inline Function:
GetCPUID
Description:
Retrieves cpu information and capabilities supported
Input:
int infoType - type of information requested
Output:
int cpuInfo[4] - requested info
\*****************************************************************************/
inline void GetCPUID(int cpuInfo[4], int infoType)
{
#ifndef NO_EXCEPTION_HANDLING
__try
{
#endif //NO_EXCEPTION_HANDLING
__get_cpuid(infoType, (unsigned int*)cpuInfo, (unsigned int*)cpuInfo + 1, (unsigned int*)cpuInfo + 2, (unsigned int*)cpuInfo + 3);
#ifndef NO_EXCEPTION_HANDLING
}
__except( EXCEPTION_EXECUTE_HANDLER )
{
// cpuid failed!
return;
}
#endif //NO_EXCEPTION_HANDLING
}
void CmFastMemCopyFromWC( void* dst, const void* src, const size_t bytes, CPU_INSTRUCTION_LEVEL cpuInstructionLevel );
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