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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#define CACHELINE_SIZE 64
#if !defined(PAGE_SIZE)
#define PAGE_SIZE 4096
#endif
#define PAGE_SIZE_2M (2*1024*1024)
#define PAGE_SIZE_4K (4*1024)
#include "platform.h"
/* define isa namespace and ISA bitvector */
#if defined (__AVX512VL__)
# define isa avx512
# define ISA AVX512
# define ISA_STR "AVX512"
#elif defined (__AVX2__)
# define isa avx2
# define ISA AVX2
# define ISA_STR "AVX2"
#elif defined(__AVXI__)
# define isa avxi
# define ISA AVXI
# define ISA_STR "AVXI"
#elif defined(__AVX__)
# define isa avx
# define ISA AVX
# define ISA_STR "AVX"
#elif defined (__SSE4_2__)
# define isa sse42
# define ISA SSE42
# define ISA_STR "SSE4.2"
//#elif defined (__SSE4_1__) // we demote this to SSE2, MacOSX code compiles with SSE41 by default with XCode 11
//# define isa sse41
//# define ISA SSE41
//# define ISA_STR "SSE4.1"
//#elif defined(__SSSE3__) // we demote this to SSE2, MacOSX code compiles with SSSE3 by default with ICC
//# define isa ssse3
//# define ISA SSSE3
//# define ISA_STR "SSSE3"
//#elif defined(__SSE3__) // we demote this to SSE2, MacOSX code compiles with SSE3 by default with clang
//# define isa sse3
//# define ISA SSE3
//# define ISA_STR "SSE3"
#elif defined(__SSE2__) || defined(__SSE3__) || defined(__SSSE3__)
# define isa sse2
# define ISA SSE2
# define ISA_STR "SSE2"
#elif defined(__SSE__)
# define isa sse
# define ISA SSE
# define ISA_STR "SSE"
#elif defined(__ARM_NEON)
// NOTE(LTE): Use sse2 for `isa` for the compatibility at the moment.
#define isa sse2
#define ISA NEON
#define ISA_STR "NEON"
#else
#error Unknown ISA
#endif
namespace embree
{
enum class CPU
{
XEON_ICE_LAKE,
CORE_ICE_LAKE,
CORE_TIGER_LAKE,
CORE_COMET_LAKE,
CORE_CANNON_LAKE,
CORE_KABY_LAKE,
XEON_SKY_LAKE,
CORE_SKY_LAKE,
XEON_PHI_KNIGHTS_MILL,
XEON_PHI_KNIGHTS_LANDING,
XEON_BROADWELL,
CORE_BROADWELL,
XEON_HASWELL,
CORE_HASWELL,
XEON_IVY_BRIDGE,
CORE_IVY_BRIDGE,
SANDY_BRIDGE,
NEHALEM,
CORE2,
CORE1,
ARM,
UNKNOWN,
};
/*! get the full path to the running executable */
std::string getExecutableFileName();
/*! return platform name */
std::string getPlatformName();
/*! get the full name of the compiler */
std::string getCompilerName();
/*! return the name of the CPU */
std::string getCPUVendor();
/*! get microprocessor model */
CPU getCPUModel();
/*! converts CPU model into string */
std::string stringOfCPUModel(CPU model);
/*! CPU features */
static const int CPU_FEATURE_SSE = 1 << 0;
static const int CPU_FEATURE_SSE2 = 1 << 1;
static const int CPU_FEATURE_SSE3 = 1 << 2;
static const int CPU_FEATURE_SSSE3 = 1 << 3;
static const int CPU_FEATURE_SSE41 = 1 << 4;
static const int CPU_FEATURE_SSE42 = 1 << 5;
static const int CPU_FEATURE_POPCNT = 1 << 6;
static const int CPU_FEATURE_AVX = 1 << 7;
static const int CPU_FEATURE_F16C = 1 << 8;
static const int CPU_FEATURE_RDRAND = 1 << 9;
static const int CPU_FEATURE_AVX2 = 1 << 10;
static const int CPU_FEATURE_FMA3 = 1 << 11;
static const int CPU_FEATURE_LZCNT = 1 << 12;
static const int CPU_FEATURE_BMI1 = 1 << 13;
static const int CPU_FEATURE_BMI2 = 1 << 14;
static const int CPU_FEATURE_AVX512F = 1 << 16;
static const int CPU_FEATURE_AVX512DQ = 1 << 17;
static const int CPU_FEATURE_AVX512PF = 1 << 18;
static const int CPU_FEATURE_AVX512ER = 1 << 19;
static const int CPU_FEATURE_AVX512CD = 1 << 20;
static const int CPU_FEATURE_AVX512BW = 1 << 21;
static const int CPU_FEATURE_AVX512VL = 1 << 22;
static const int CPU_FEATURE_AVX512IFMA = 1 << 23;
static const int CPU_FEATURE_AVX512VBMI = 1 << 24;
static const int CPU_FEATURE_XMM_ENABLED = 1 << 25;
static const int CPU_FEATURE_YMM_ENABLED = 1 << 26;
static const int CPU_FEATURE_ZMM_ENABLED = 1 << 27;
static const int CPU_FEATURE_NEON = 1 << 28;
static const int CPU_FEATURE_NEON_2X = 1 << 29;
/*! get CPU features */
int getCPUFeatures();
/*! convert CPU features into a string */
std::string stringOfCPUFeatures(int features);
/*! creates a string of all supported targets that are supported */
std::string supportedTargetList (int isa);
/*! ISAs */
static const int SSE = CPU_FEATURE_SSE | CPU_FEATURE_XMM_ENABLED;
static const int SSE2 = SSE | CPU_FEATURE_SSE2;
static const int SSE3 = SSE2 | CPU_FEATURE_SSE3;
static const int SSSE3 = SSE3 | CPU_FEATURE_SSSE3;
static const int SSE41 = SSSE3 | CPU_FEATURE_SSE41;
static const int SSE42 = SSE41 | CPU_FEATURE_SSE42 | CPU_FEATURE_POPCNT;
static const int AVX = SSE42 | CPU_FEATURE_AVX | CPU_FEATURE_YMM_ENABLED;
static const int AVXI = AVX | CPU_FEATURE_F16C | CPU_FEATURE_RDRAND;
static const int AVX2 = AVXI | CPU_FEATURE_AVX2 | CPU_FEATURE_FMA3 | CPU_FEATURE_BMI1 | CPU_FEATURE_BMI2 | CPU_FEATURE_LZCNT;
static const int AVX512 = AVX2 | CPU_FEATURE_AVX512F | CPU_FEATURE_AVX512DQ | CPU_FEATURE_AVX512CD | CPU_FEATURE_AVX512BW | CPU_FEATURE_AVX512VL | CPU_FEATURE_ZMM_ENABLED;
static const int NEON = CPU_FEATURE_NEON | CPU_FEATURE_SSE | CPU_FEATURE_SSE2;
static const int NEON_2X = CPU_FEATURE_NEON_2X | AVX2;
/*! converts ISA bitvector into a string */
std::string stringOfISA(int features);
/*! return the number of logical threads of the system */
unsigned int getNumberOfLogicalThreads();
/*! returns the size of the terminal window in characters */
int getTerminalWidth();
/*! returns performance counter in seconds */
double getSeconds();
/*! sleeps the specified number of seconds */
void sleepSeconds(double t);
/*! returns virtual address space occupied by process */
size_t getVirtualMemoryBytes();
/*! returns resident memory required by process */
size_t getResidentMemoryBytes();
}
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