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blis/frame/base/bli_cpuid.h
Edward Smyth 1f18eeb267 Determine AMD FP/SIMD execution datapath width 
Different Zen processors may have a 512-bit, 256-bit or 128-bit
FP/SIMD execution datapath width (FP512, FP256, FP128). Zen5 allows
a selection of FP512 or FP256 width in BIOS settings. Add cpuid
code to detect the width and store an indication of it in the
global variable bli_fp_datapath. This should be accessed internally
via the function bli_cpuid_query_fp_datapath(). This functionality
is currently only enabled on x86_64 platforms and only currently
reports a value for AMD CPUs.

Also add Zen3 as a fallback path for any unknown AMD processors if
AVX512 is not supported or has been disabled.

AMD-Internal: [CPUPL-4415]
Change-Id: Idf3fb5a697b43bc035ce110e86f60706dcc67f2a
2024-08-28 12:25:57 -04:00

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/*
BLIS
An object-based framework for developing high-performance BLAS-like
libraries.
Copyright (C) 2014, The University of Texas at Austin
Copyright (C) 2018 - 2024, Advanced Micro Devices, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name(s) of the copyright holder(s) nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#if 0
// Used only during standalone testing of ARM support.
#define FALSE 0
#define TRUE 1
typedef enum
{
BLIS_ARCH_CORTEXA57 = 10,
BLIS_ARCH_CORTEXA15 = 11,
BLIS_ARCH_CORTEXA9 = 12,
BLIS_ARCH_GENERIC = 13
} arch_t;
typedef uint64_t bool;
#define bli_abort abort
#endif
#ifndef BLIS_CPUID_H
#define BLIS_CPUID_H
arch_t bli_cpuid_query_id( void );
model_t bli_cpuid_query_model_id( arch_t id );
uint32_t bli_cpuid_query_fp_datapath( void );
uint32_t bli_cpuid_query_l1d_cache_size( void );
uint32_t bli_cpuid_query_l1i_cache_size( void );
uint32_t bli_cpuid_query_l2_cache_size( void );
uint32_t bli_cpuid_query_l3_cache_size( void );
// Intel
bool bli_cpuid_is_skx( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_knl( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_haswell( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_sandybridge( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_penryn( uint32_t family, uint32_t model, uint32_t features );
// AMD
bool bli_cpuid_is_zen5( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_zen4( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_avx512_fallback( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_zen3( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_zen2( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_zen( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_excavator( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_steamroller( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_piledriver( uint32_t family, uint32_t model, uint32_t features );
bool bli_cpuid_is_bulldozer( uint32_t family, uint32_t model, uint32_t features );
model_t bli_cpuid_get_zen5_cpuid_model( uint32_t family, uint32_t model, uint32_t features );
model_t bli_cpuid_get_zen4_cpuid_model( uint32_t family, uint32_t model, uint32_t features );
model_t bli_cpuid_get_zen3_cpuid_model( uint32_t family, uint32_t model, uint32_t features );
// ARM
bool bli_cpuid_is_thunderx2( uint32_t model, uint32_t part, uint32_t features );
bool bli_cpuid_is_cortexa57( uint32_t model, uint32_t part, uint32_t features );
bool bli_cpuid_is_cortexa53( uint32_t model, uint32_t part, uint32_t features );
bool bli_cpuid_is_armsve( uint32_t model, uint32_t part, uint32_t features );
bool bli_cpuid_is_a64fx( uint32_t model, uint32_t part, uint32_t features );
bool bli_cpuid_is_cortexa15( uint32_t model, uint32_t part, uint32_t features );
bool bli_cpuid_is_cortexa9( uint32_t model, uint32_t part, uint32_t features );
uint32_t bli_cpuid_query( uint32_t* family, uint32_t* model, uint32_t* features );
void bli_cpuid_check_datapath( uint32_t vendor, uint32_t features );
void bli_cpuid_check_cache( uint32_t vendor );
// -----------------------------------------------------------------------------
//
// This section of the file was based off of cpuid.hpp from TBLIS [1].
//
// [1] https://github.com/devinamatthews/tblis
//
/*
Copyright (C) 2017, The University of Texas at Austin
Copyright (C) 2017, Devin Matthews
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
- Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
- Neither the name(s) of the copyright holder(s) nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
BLIS_INLINE bool bli_cpuid_has_features( uint32_t have, uint32_t want )
{
return ( have & want ) == want;
}
// -----------------------------------------------------------------------------
#if defined(__x86_64__) || defined(_M_X64) || defined(__i386) || defined(_M_IX86)
// cpuid.h is now #included in bli_cpuid.c instead of here. See issue #393
// for more information why this move was made.
//#include "cpuid.h"
void get_cpu_name( char *cpu_name );
int vpu_count( void );
bool bli_cpuid_is_avx2fma3_supported(void);
bool bli_cpuid_is_avx512_supported(void);
bool bli_cpuid_is_avx512vnni_supported(void);
bool bli_cpuid_is_avx512bf16_supported(void);
void bli_cpuid_check_avx2fma3_support( uint32_t family, uint32_t model, uint32_t features );
void bli_cpuid_check_avx512_support( uint32_t family, uint32_t model, uint32_t features );
void bli_cpuid_check_avx512vnni_support( uint32_t family, uint32_t model, uint32_t features );
void bli_cpuid_check_avx512bf16_support( uint32_t family, uint32_t model, uint32_t features );
enum
{
VENDOR_INTEL = 0,
VENDOR_AMD,
VENDOR_UNKNOWN
};
enum
{
FEATURE_SSE3 = 0x0001,
FEATURE_SSSE3 = 0x0002,
FEATURE_SSE41 = 0x0004,
FEATURE_SSE42 = 0x0008,
FEATURE_AVX = 0x0010,
FEATURE_AVX2 = 0x0020,
FEATURE_FMA3 = 0x0040,
FEATURE_FMA4 = 0x0080,
FEATURE_AVX512F = 0x0100,
FEATURE_AVX512DQ = 0x0200,
FEATURE_AVX512PF = 0x0400,
FEATURE_AVX512ER = 0x0800,
FEATURE_AVX512CD = 0x1000,
FEATURE_AVX512BW = 0x2000,
FEATURE_AVX512VL = 0x4000,
FEATURE_AVX512VNNI = 0x8000,
FEATURE_AVX512BF16 = 0x10000,
FEATURE_AVXVNNI = 0x20000,
FEATURE_AVX512VP2INTERSECT = 0x40000,
FEATURE_MOVDIRI = 0x80000,
FEATURE_MOVDIR64B = 0x100000,
FEATURE_DATAPATH_FP128 = 0x200000,
FEATURE_DATAPATH_FP256 = 0x400000,
FEATURE_DATAPATH_FP512 = 0x800000
};
// To reduce confusion, include MOVU bit so enum values match those in
// CPUID_Fn8000001A_EAX id function.
enum
{
DATAPATH_UNSET = -1,
DATAPATH_FP128,
DATAPATH_MOVU,
DATAPATH_FP256,
DATAPATH_FP512
};
#elif defined(__aarch64__) || defined(__arm__) || defined(_M_ARM)
char* find_string_in( char* target, char* buffer, size_t buf_len, char* filepath );
enum
{
VENDOR_ARM = 0,
VENDOR_UNKNOWN
};
enum
{
MODEL_ARMV7 = 0,
MODEL_ARMV8,
MODEL_UNKNOWN
};
enum
{
FEATURE_NEON = 0x01,
FEATURE_SVE = 0x02
};
#endif
#endif
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