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180897c161
Different systems prefer a different divisors.
From benchmarks[1] so far the following divisors have been found:
ICX : 2
SKX : 2
BWD : 8
For Intel, we are generalizing that BWD and older prefers 8 as a
divisor, and SKL and newer prefers 2. This number can be further tuned
as benchmarks are run.
[1]: https://github.com/goldsteinn/memcpy-nt-benchmarks
Reviewed-by: DJ Delorie <dj@redhat.com>
984 lines
29 KiB
C
984 lines
29 KiB
C
/* Data structure for x86 CPU features.
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Copyright (C) 2020-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _PRIVATE_CPU_FEATURES_H
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#define _PRIVATE_CPU_FEATURES_H 1
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#ifdef _CPU_FEATURES_H
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# error this should be impossible
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#endif
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/* Get data structures without inline functions. */
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#define _SYS_PLATFORM_X86_H
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#include <bits/platform/x86.h>
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enum
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{
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CPUID_INDEX_MAX = CPUID_INDEX_14_ECX_0 + 1
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};
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enum
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{
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/* The integer bit array index for the first set of preferred feature
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bits. */
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PREFERRED_FEATURE_INDEX_1 = 0,
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/* The current maximum size of the feature integer bit array. */
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PREFERRED_FEATURE_INDEX_MAX
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};
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/* Only used directly in cpu-features.c. */
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#define CPU_FEATURE_SET(ptr, name) \
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ptr->features[index_cpu_##name].active.reg_##name |= bit_cpu_##name;
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#define CPU_FEATURE_UNSET(ptr, name) \
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ptr->features[index_cpu_##name].active.reg_##name &= ~bit_cpu_##name;
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#define CPU_FEATURE_SET_ACTIVE(ptr, name) \
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ptr->features[index_cpu_##name].active.reg_##name \
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|= ptr->features[index_cpu_##name].cpuid.reg_##name & bit_cpu_##name;
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#define CPU_FEATURE_PREFERRED_P(ptr, name) \
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((ptr->preferred[index_arch_##name] & bit_arch_##name) != 0)
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#define CPU_FEATURE_CHECK_P(ptr, name, check) \
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((ptr->features[index_cpu_##name].check.reg_##name \
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& bit_cpu_##name) != 0)
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#define CPU_FEATURE_PRESENT_P(ptr, name) \
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CPU_FEATURE_CHECK_P (ptr, name, cpuid)
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#define CPU_FEATURE_ACTIVE_P(ptr, name) \
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CPU_FEATURE_CHECK_P (ptr, name, active)
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#define CPU_FEATURE_CPU_P(ptr, name) \
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CPU_FEATURE_PRESENT_P (ptr, name)
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#define CPU_FEATURE_USABLE_P(ptr, name) \
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CPU_FEATURE_ACTIVE_P (ptr, name)
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/* HAS_CPU_FEATURE evaluates to true if CPU supports the feature. */
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#define HAS_CPU_FEATURE(name) \
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CPU_FEATURE_CPU_P (__get_cpu_features (), name)
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/* CPU_FEATURE_USABLE evaluates to true if the feature is usable. */
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#define CPU_FEATURE_USABLE(name) \
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CPU_FEATURE_USABLE_P (__get_cpu_features (), name)
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/* CPU_FEATURE_PREFER evaluates to true if we prefer the feature at
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runtime. */
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#define CPU_FEATURE_PREFERRED(name) \
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CPU_FEATURE_PREFERRED_P(__get_cpu_features (), name)
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#define CPU_FEATURES_CPU_P(ptr, name) \
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CPU_FEATURE_CPU_P (ptr, name)
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#define CPU_FEATURES_ARCH_P(ptr, name) \
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CPU_FEATURE_PREFERRED_P (ptr, name)
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#define HAS_ARCH_FEATURE(name) \
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CPU_FEATURE_PREFERRED (name)
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/* CPU features. */
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/* CPUID_INDEX_1. */
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/* ECX. */
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#define bit_cpu_SSE3 (1u << 0)
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#define bit_cpu_PCLMULQDQ (1u << 1)
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#define bit_cpu_DTES64 (1u << 2)
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#define bit_cpu_MONITOR (1u << 3)
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#define bit_cpu_DS_CPL (1u << 4)
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#define bit_cpu_VMX (1u << 5)
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#define bit_cpu_SMX (1u << 6)
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#define bit_cpu_EIST (1u << 7)
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#define bit_cpu_TM2 (1u << 8)
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#define bit_cpu_SSSE3 (1u << 9)
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#define bit_cpu_CNXT_ID (1u << 10)
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#define bit_cpu_SDBG (1u << 11)
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#define bit_cpu_FMA (1u << 12)
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#define bit_cpu_CMPXCHG16B (1u << 13)
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#define bit_cpu_XTPRUPDCTRL (1u << 14)
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#define bit_cpu_PDCM (1u << 15)
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#define bit_cpu_INDEX_1_ECX_16 (1u << 16)
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#define bit_cpu_PCID (1u << 17)
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#define bit_cpu_DCA (1u << 18)
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#define bit_cpu_SSE4_1 (1u << 19)
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#define bit_cpu_SSE4_2 (1u << 20)
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#define bit_cpu_X2APIC (1u << 21)
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#define bit_cpu_MOVBE (1u << 22)
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#define bit_cpu_POPCNT (1u << 23)
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#define bit_cpu_TSC_DEADLINE (1u << 24)
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#define bit_cpu_AES (1u << 25)
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#define bit_cpu_XSAVE (1u << 26)
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#define bit_cpu_OSXSAVE (1u << 27)
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#define bit_cpu_AVX (1u << 28)
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#define bit_cpu_F16C (1u << 29)
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#define bit_cpu_RDRAND (1u << 30)
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#define bit_cpu_INDEX_1_ECX_31 (1u << 31)
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/* EDX. */
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#define bit_cpu_FPU (1u << 0)
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#define bit_cpu_VME (1u << 1)
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#define bit_cpu_DE (1u << 2)
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#define bit_cpu_PSE (1u << 3)
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#define bit_cpu_TSC (1u << 4)
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#define bit_cpu_MSR (1u << 5)
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#define bit_cpu_PAE (1u << 6)
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#define bit_cpu_MCE (1u << 7)
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#define bit_cpu_CX8 (1u << 8)
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#define bit_cpu_APIC (1u << 9)
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#define bit_cpu_INDEX_1_EDX_10 (1u << 10)
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#define bit_cpu_SEP (1u << 11)
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#define bit_cpu_MTRR (1u << 12)
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#define bit_cpu_PGE (1u << 13)
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#define bit_cpu_MCA (1u << 14)
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#define bit_cpu_CMOV (1u << 15)
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#define bit_cpu_PAT (1u << 16)
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#define bit_cpu_PSE_36 (1u << 17)
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#define bit_cpu_PSN (1u << 18)
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#define bit_cpu_CLFSH (1u << 19)
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#define bit_cpu_INDEX_1_EDX_20 (1u << 20)
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#define bit_cpu_DS (1u << 21)
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#define bit_cpu_ACPI (1u << 22)
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#define bit_cpu_MMX (1u << 23)
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#define bit_cpu_FXSR (1u << 24)
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#define bit_cpu_SSE (1u << 25)
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#define bit_cpu_SSE2 (1u << 26)
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#define bit_cpu_SS (1u << 27)
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#define bit_cpu_HTT (1u << 28)
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#define bit_cpu_TM (1u << 29)
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#define bit_cpu_INDEX_1_EDX_30 (1u << 30)
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#define bit_cpu_PBE (1u << 31)
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/* CPUID_INDEX_7. */
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/* EBX. */
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#define bit_cpu_FSGSBASE (1u << 0)
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#define bit_cpu_TSC_ADJUST (1u << 1)
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#define bit_cpu_SGX (1u << 2)
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#define bit_cpu_BMI1 (1u << 3)
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#define bit_cpu_HLE (1u << 4)
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#define bit_cpu_AVX2 (1u << 5)
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#define bit_cpu_INDEX_7_EBX_6 (1u << 6)
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#define bit_cpu_SMEP (1u << 7)
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#define bit_cpu_BMI2 (1u << 8)
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#define bit_cpu_ERMS (1u << 9)
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#define bit_cpu_INVPCID (1u << 10)
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#define bit_cpu_RTM (1u << 11)
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#define bit_cpu_RDT_M (1u << 12)
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#define bit_cpu_DEPR_FPU_CS_DS (1u << 13)
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#define bit_cpu_MPX (1u << 14)
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#define bit_cpu_RDT_A (1u << 15)
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#define bit_cpu_AVX512F (1u << 16)
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#define bit_cpu_AVX512DQ (1u << 17)
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#define bit_cpu_RDSEED (1u << 18)
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#define bit_cpu_ADX (1u << 19)
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#define bit_cpu_SMAP (1u << 20)
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#define bit_cpu_AVX512_IFMA (1u << 21)
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#define bit_cpu_INDEX_7_EBX_22 (1u << 22)
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#define bit_cpu_CLFLUSHOPT (1u << 23)
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#define bit_cpu_CLWB (1u << 24)
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#define bit_cpu_TRACE (1u << 25)
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#define bit_cpu_AVX512PF (1u << 26)
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#define bit_cpu_AVX512ER (1u << 27)
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#define bit_cpu_AVX512CD (1u << 28)
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#define bit_cpu_SHA (1u << 29)
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#define bit_cpu_AVX512BW (1u << 30)
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#define bit_cpu_AVX512VL (1u << 31)
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/* ECX. */
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#define bit_cpu_PREFETCHWT1 (1u << 0)
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#define bit_cpu_AVX512_VBMI (1u << 1)
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#define bit_cpu_UMIP (1u << 2)
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#define bit_cpu_PKU (1u << 3)
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#define bit_cpu_OSPKE (1u << 4)
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#define bit_cpu_WAITPKG (1u << 5)
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#define bit_cpu_AVX512_VBMI2 (1u << 6)
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#define bit_cpu_SHSTK (1u << 7)
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#define bit_cpu_GFNI (1u << 8)
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#define bit_cpu_VAES (1u << 9)
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#define bit_cpu_VPCLMULQDQ (1u << 10)
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#define bit_cpu_AVX512_VNNI (1u << 11)
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#define bit_cpu_AVX512_BITALG (1u << 12)
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#define bit_cpu_INDEX_7_ECX_13 (1u << 13)
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#define bit_cpu_AVX512_VPOPCNTDQ (1u << 14)
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#define bit_cpu_INDEX_7_ECX_15 (1u << 15)
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#define bit_cpu_INDEX_7_ECX_16 (1u << 16)
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/* Note: Bits 17-21: The value of MAWAU used by the BNDLDX and BNDSTX
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instructions in 64-bit mode. */
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#define bit_cpu_RDPID (1u << 22)
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#define bit_cpu_KL (1u << 23)
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#define bit_cpu_INDEX_7_ECX_24 (1u << 24)
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#define bit_cpu_CLDEMOTE (1u << 25)
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#define bit_cpu_INDEX_7_ECX_26 (1u << 26)
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#define bit_cpu_MOVDIRI (1u << 27)
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#define bit_cpu_MOVDIR64B (1u << 28)
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#define bit_cpu_ENQCMD (1u << 29)
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#define bit_cpu_SGX_LC (1u << 30)
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#define bit_cpu_PKS (1u << 31)
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/* EDX. */
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#define bit_cpu_INDEX_7_EDX_0 (1u << 0)
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#define bit_cpu_INDEX_7_EDX_1 (1u << 1)
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#define bit_cpu_AVX512_4VNNIW (1u << 2)
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#define bit_cpu_AVX512_4FMAPS (1u << 3)
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#define bit_cpu_FSRM (1u << 4)
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#define bit_cpu_UINTR (1u << 5)
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#define bit_cpu_INDEX_7_EDX_6 (1u << 6)
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#define bit_cpu_INDEX_7_EDX_7 (1u << 7)
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#define bit_cpu_AVX512_VP2INTERSECT (1u << 8)
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#define bit_cpu_INDEX_7_EDX_9 (1u << 9)
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#define bit_cpu_MD_CLEAR (1u << 10)
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#define bit_cpu_RTM_ALWAYS_ABORT (1u << 11)
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#define bit_cpu_INDEX_7_EDX_12 (1u << 12)
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#define bit_cpu_INDEX_7_EDX_13 (1u << 13)
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#define bit_cpu_SERIALIZE (1u << 14)
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#define bit_cpu_HYBRID (1u << 15)
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#define bit_cpu_TSXLDTRK (1u << 16)
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#define bit_cpu_INDEX_7_EDX_17 (1u << 17)
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#define bit_cpu_PCONFIG (1u << 18)
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#define bit_cpu_INDEX_7_EDX_19 (1u << 19)
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#define bit_cpu_IBT (1u << 20)
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#define bit_cpu_INDEX_7_EDX_21 (1u << 21)
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#define bit_cpu_AMX_BF16 (1u << 22)
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#define bit_cpu_AVX512_FP16 (1u << 23)
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#define bit_cpu_AMX_TILE (1u << 24)
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#define bit_cpu_AMX_INT8 (1u << 25)
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#define bit_cpu_IBRS_IBPB (1u << 26)
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#define bit_cpu_STIBP (1u << 27)
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#define bit_cpu_L1D_FLUSH (1u << 28)
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#define bit_cpu_ARCH_CAPABILITIES (1u << 29)
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#define bit_cpu_CORE_CAPABILITIES (1u << 30)
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#define bit_cpu_SSBD (1u << 31)
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/* CPUID_INDEX_80000001. */
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/* ECX. */
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#define bit_cpu_LAHF64_SAHF64 (1u << 0)
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#define bit_cpu_SVM (1u << 2)
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#define bit_cpu_LZCNT (1u << 5)
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#define bit_cpu_SSE4A (1u << 6)
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#define bit_cpu_PREFETCHW (1u << 8)
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#define bit_cpu_XOP (1u << 11)
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#define bit_cpu_LWP (1u << 15)
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#define bit_cpu_FMA4 (1u << 16)
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#define bit_cpu_TBM (1u << 21)
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/* EDX. */
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#define bit_cpu_SYSCALL_SYSRET (1u << 11)
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#define bit_cpu_NX (1u << 20)
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#define bit_cpu_PAGE1GB (1u << 26)
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#define bit_cpu_RDTSCP (1u << 27)
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#define bit_cpu_LM (1u << 29)
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/* CPUID_INDEX_D_ECX_1. */
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/* EAX. */
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#define bit_cpu_XSAVEOPT (1u << 0)
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#define bit_cpu_XSAVEC (1u << 1)
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#define bit_cpu_XGETBV_ECX_1 (1u << 2)
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#define bit_cpu_XSAVES (1u << 3)
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#define bit_cpu_XFD (1u << 4)
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/* CPUID_INDEX_80000007. */
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/* EDX. */
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#define bit_cpu_INVARIANT_TSC (1u << 8)
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/* CPUID_INDEX_80000008. */
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/* EBX. */
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#define bit_cpu_WBNOINVD (1u << 9)
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#define bit_cpu_AMD_IBPB (1u << 12)
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#define bit_cpu_AMD_IBRS (1u << 14)
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#define bit_cpu_AMD_STIBP (1u << 15)
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#define bit_cpu_AMD_SSBD (1u << 24)
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#define bit_cpu_AMD_VIRT_SSBD (1u << 25)
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/* CPUID_INDEX_7_ECX_1. */
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/* EAX. */
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#define bit_cpu_RAO_INT (1u << 3)
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#define bit_cpu_AVX_VNNI (1u << 4)
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#define bit_cpu_AVX512_BF16 (1u << 5)
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#define bit_cpu_CMPCCXADD (1u << 7)
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#define bit_cpu_FZLRM (1u << 10)
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#define bit_cpu_FSRS (1u << 11)
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#define bit_cpu_FSRCS (1u << 12)
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#define bit_cpu_AMX_FP16 (1u << 21)
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#define bit_cpu_HRESET (1u << 22)
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#define bit_cpu_AVX_IFMA (1u << 23)
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#define bit_cpu_LAM (1u << 26)
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/* EDX. */
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#define bit_cpu_AVX_VNNI_INT8 (1u << 4)
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#define bit_cpu_AVX_NE_CONVERT (1u << 5)
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#define bit_cpu_AMX_COMPLEX (1u << 8)
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#define bit_cpu_PREFETCHI (1u << 14)
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/* CPUID_INDEX_19. */
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/* EBX. */
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#define bit_cpu_AESKLE (1u << 0)
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#define bit_cpu_WIDE_KL (1u << 2)
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/* CPUID_INDEX_14_ECX_0. */
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/* EBX. */
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#define bit_cpu_PTWRITE (1u << 4)
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/* CPUID_INDEX_1. */
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/* ECX. */
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#define index_cpu_SSE3 CPUID_INDEX_1
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#define index_cpu_PCLMULQDQ CPUID_INDEX_1
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#define index_cpu_DTES64 CPUID_INDEX_1
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#define index_cpu_MONITOR CPUID_INDEX_1
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#define index_cpu_DS_CPL CPUID_INDEX_1
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#define index_cpu_VMX CPUID_INDEX_1
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#define index_cpu_SMX CPUID_INDEX_1
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#define index_cpu_EIST CPUID_INDEX_1
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#define index_cpu_TM2 CPUID_INDEX_1
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#define index_cpu_SSSE3 CPUID_INDEX_1
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#define index_cpu_CNXT_ID CPUID_INDEX_1
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#define index_cpu_SDBG CPUID_INDEX_1
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#define index_cpu_FMA CPUID_INDEX_1
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#define index_cpu_CMPXCHG16B CPUID_INDEX_1
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#define index_cpu_XTPRUPDCTRL CPUID_INDEX_1
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#define index_cpu_PDCM CPUID_INDEX_1
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#define index_cpu_INDEX_1_ECX_16 CPUID_INDEX_1
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#define index_cpu_PCID CPUID_INDEX_1
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#define index_cpu_DCA CPUID_INDEX_1
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#define index_cpu_SSE4_1 CPUID_INDEX_1
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#define index_cpu_SSE4_2 CPUID_INDEX_1
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#define index_cpu_X2APIC CPUID_INDEX_1
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#define index_cpu_MOVBE CPUID_INDEX_1
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#define index_cpu_POPCNT CPUID_INDEX_1
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#define index_cpu_TSC_DEADLINE CPUID_INDEX_1
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#define index_cpu_AES CPUID_INDEX_1
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#define index_cpu_XSAVE CPUID_INDEX_1
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#define index_cpu_OSXSAVE CPUID_INDEX_1
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#define index_cpu_AVX CPUID_INDEX_1
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#define index_cpu_F16C CPUID_INDEX_1
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#define index_cpu_RDRAND CPUID_INDEX_1
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#define index_cpu_INDEX_1_ECX_31 CPUID_INDEX_1
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/* ECX. */
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#define index_cpu_FPU CPUID_INDEX_1
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#define index_cpu_VME CPUID_INDEX_1
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#define index_cpu_DE CPUID_INDEX_1
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#define index_cpu_PSE CPUID_INDEX_1
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#define index_cpu_TSC CPUID_INDEX_1
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#define index_cpu_MSR CPUID_INDEX_1
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#define index_cpu_PAE CPUID_INDEX_1
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#define index_cpu_MCE CPUID_INDEX_1
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#define index_cpu_CX8 CPUID_INDEX_1
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#define index_cpu_APIC CPUID_INDEX_1
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#define index_cpu_INDEX_1_EDX_10 CPUID_INDEX_1
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#define index_cpu_SEP CPUID_INDEX_1
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#define index_cpu_MTRR CPUID_INDEX_1
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#define index_cpu_PGE CPUID_INDEX_1
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#define index_cpu_MCA CPUID_INDEX_1
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#define index_cpu_CMOV CPUID_INDEX_1
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#define index_cpu_PAT CPUID_INDEX_1
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#define index_cpu_PSE_36 CPUID_INDEX_1
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#define index_cpu_PSN CPUID_INDEX_1
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#define index_cpu_CLFSH CPUID_INDEX_1
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#define index_cpu_INDEX_1_EDX_20 CPUID_INDEX_1
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#define index_cpu_DS CPUID_INDEX_1
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#define index_cpu_ACPI CPUID_INDEX_1
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#define index_cpu_MMX CPUID_INDEX_1
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#define index_cpu_FXSR CPUID_INDEX_1
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#define index_cpu_SSE CPUID_INDEX_1
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#define index_cpu_SSE2 CPUID_INDEX_1
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#define index_cpu_SS CPUID_INDEX_1
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#define index_cpu_HTT CPUID_INDEX_1
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#define index_cpu_TM CPUID_INDEX_1
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#define index_cpu_INDEX_1_EDX_30 CPUID_INDEX_1
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#define index_cpu_PBE CPUID_INDEX_1
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/* CPUID_INDEX_7. */
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/* EBX. */
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#define index_cpu_FSGSBASE CPUID_INDEX_7
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#define index_cpu_TSC_ADJUST CPUID_INDEX_7
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#define index_cpu_SGX CPUID_INDEX_7
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#define index_cpu_BMI1 CPUID_INDEX_7
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#define index_cpu_HLE CPUID_INDEX_7
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#define index_cpu_AVX2 CPUID_INDEX_7
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#define index_cpu_INDEX_7_EBX_6 CPUID_INDEX_7
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#define index_cpu_SMEP CPUID_INDEX_7
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#define index_cpu_BMI2 CPUID_INDEX_7
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#define index_cpu_ERMS CPUID_INDEX_7
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#define index_cpu_INVPCID CPUID_INDEX_7
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#define index_cpu_RTM CPUID_INDEX_7
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#define index_cpu_RDT_M CPUID_INDEX_7
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#define index_cpu_DEPR_FPU_CS_DS CPUID_INDEX_7
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#define index_cpu_MPX CPUID_INDEX_7
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#define index_cpu_RDT_A CPUID_INDEX_7
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#define index_cpu_AVX512F CPUID_INDEX_7
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#define index_cpu_AVX512DQ CPUID_INDEX_7
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#define index_cpu_RDSEED CPUID_INDEX_7
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#define index_cpu_ADX CPUID_INDEX_7
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#define index_cpu_SMAP CPUID_INDEX_7
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#define index_cpu_AVX512_IFMA CPUID_INDEX_7
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#define index_cpu_INDEX_7_EBX_22 CPUID_INDEX_7
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#define index_cpu_CLFLUSHOPT CPUID_INDEX_7
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#define index_cpu_CLWB CPUID_INDEX_7
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#define index_cpu_TRACE CPUID_INDEX_7
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#define index_cpu_AVX512PF CPUID_INDEX_7
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#define index_cpu_AVX512ER CPUID_INDEX_7
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#define index_cpu_AVX512CD CPUID_INDEX_7
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#define index_cpu_SHA CPUID_INDEX_7
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#define index_cpu_AVX512BW CPUID_INDEX_7
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#define index_cpu_AVX512VL CPUID_INDEX_7
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/* ECX. */
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#define index_cpu_PREFETCHWT1 CPUID_INDEX_7
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#define index_cpu_AVX512_VBMI CPUID_INDEX_7
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#define index_cpu_UMIP CPUID_INDEX_7
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#define index_cpu_PKU CPUID_INDEX_7
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#define index_cpu_OSPKE CPUID_INDEX_7
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#define index_cpu_WAITPKG CPUID_INDEX_7
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#define index_cpu_AVX512_VBMI2 CPUID_INDEX_7
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#define index_cpu_SHSTK CPUID_INDEX_7
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#define index_cpu_GFNI CPUID_INDEX_7
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#define index_cpu_VAES CPUID_INDEX_7
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#define index_cpu_VPCLMULQDQ CPUID_INDEX_7
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#define index_cpu_AVX512_VNNI CPUID_INDEX_7
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#define index_cpu_AVX512_BITALG CPUID_INDEX_7
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#define index_cpu_INDEX_7_ECX_13 CPUID_INDEX_7
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#define index_cpu_AVX512_VPOPCNTDQ CPUID_INDEX_7
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#define index_cpu_INDEX_7_ECX_15 CPUID_INDEX_7
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#define index_cpu_INDEX_7_ECX_16 CPUID_INDEX_7
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#define index_cpu_RDPID CPUID_INDEX_7
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#define index_cpu_KL CPUID_INDEX_7
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#define index_cpu_INDEX_7_ECX_24 CPUID_INDEX_7
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#define index_cpu_CLDEMOTE CPUID_INDEX_7
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#define index_cpu_INDEX_7_ECX_26 CPUID_INDEX_7
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#define index_cpu_MOVDIRI CPUID_INDEX_7
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#define index_cpu_MOVDIR64B CPUID_INDEX_7
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#define index_cpu_ENQCMD CPUID_INDEX_7
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#define index_cpu_SGX_LC CPUID_INDEX_7
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#define index_cpu_PKS CPUID_INDEX_7
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/* EDX. */
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#define index_cpu_INDEX_7_EDX_0 CPUID_INDEX_7
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#define index_cpu_INDEX_7_EDX_1 CPUID_INDEX_7
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#define index_cpu_AVX512_4VNNIW CPUID_INDEX_7
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#define index_cpu_AVX512_4FMAPS CPUID_INDEX_7
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#define index_cpu_FSRM CPUID_INDEX_7
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#define index_cpu_UINTR CPUID_INDEX_7
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#define index_cpu_INDEX_7_EDX_6 CPUID_INDEX_7
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#define index_cpu_INDEX_7_EDX_7 CPUID_INDEX_7
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#define index_cpu_AVX512_VP2INTERSECT CPUID_INDEX_7
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#define index_cpu_INDEX_7_EDX_9 CPUID_INDEX_7
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#define index_cpu_MD_CLEAR CPUID_INDEX_7
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#define index_cpu_RTM_ALWAYS_ABORT CPUID_INDEX_7
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#define index_cpu_INDEX_7_EDX_12 CPUID_INDEX_7
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#define index_cpu_INDEX_7_EDX_13 CPUID_INDEX_7
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#define index_cpu_SERIALIZE CPUID_INDEX_7
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#define index_cpu_HYBRID CPUID_INDEX_7
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#define index_cpu_TSXLDTRK CPUID_INDEX_7
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#define index_cpu_INDEX_7_EDX_17 CPUID_INDEX_7
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#define index_cpu_PCONFIG CPUID_INDEX_7
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#define index_cpu_INDEX_7_EDX_19 CPUID_INDEX_7
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#define index_cpu_IBT CPUID_INDEX_7
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#define index_cpu_INDEX_7_EDX_21 CPUID_INDEX_7
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#define index_cpu_AMX_BF16 CPUID_INDEX_7
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#define index_cpu_AVX512_FP16 CPUID_INDEX_7
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#define index_cpu_AMX_TILE CPUID_INDEX_7
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#define index_cpu_AMX_INT8 CPUID_INDEX_7
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#define index_cpu_IBRS_IBPB CPUID_INDEX_7
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#define index_cpu_STIBP CPUID_INDEX_7
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#define index_cpu_L1D_FLUSH CPUID_INDEX_7
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#define index_cpu_ARCH_CAPABILITIES CPUID_INDEX_7
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#define index_cpu_CORE_CAPABILITIES CPUID_INDEX_7
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#define index_cpu_SSBD CPUID_INDEX_7
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/* CPUID_INDEX_80000001. */
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/* ECX. */
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#define index_cpu_LAHF64_SAHF64 CPUID_INDEX_80000001
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#define index_cpu_SVM CPUID_INDEX_80000001
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#define index_cpu_LZCNT CPUID_INDEX_80000001
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#define index_cpu_SSE4A CPUID_INDEX_80000001
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#define index_cpu_PREFETCHW CPUID_INDEX_80000001
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#define index_cpu_XOP CPUID_INDEX_80000001
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#define index_cpu_LWP CPUID_INDEX_80000001
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#define index_cpu_FMA4 CPUID_INDEX_80000001
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#define index_cpu_TBM CPUID_INDEX_80000001
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/* EDX. */
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#define index_cpu_SYSCALL_SYSRET CPUID_INDEX_80000001
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#define index_cpu_NX CPUID_INDEX_80000001
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#define index_cpu_PAGE1GB CPUID_INDEX_80000001
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#define index_cpu_RDTSCP CPUID_INDEX_80000001
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#define index_cpu_LM CPUID_INDEX_80000001
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/* CPUID_INDEX_D_ECX_1. */
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/* EAX. */
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#define index_cpu_XSAVEOPT CPUID_INDEX_D_ECX_1
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#define index_cpu_XSAVEC CPUID_INDEX_D_ECX_1
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#define index_cpu_XGETBV_ECX_1 CPUID_INDEX_D_ECX_1
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#define index_cpu_XSAVES CPUID_INDEX_D_ECX_1
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#define index_cpu_XFD CPUID_INDEX_D_ECX_1
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/* CPUID_INDEX_80000007. */
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/* EDX. */
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#define index_cpu_INVARIANT_TSC CPUID_INDEX_80000007
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/* CPUID_INDEX_80000008. */
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/* EBX. */
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#define index_cpu_WBNOINVD CPUID_INDEX_80000008
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#define index_cpu_AMD_IBPB CPUID_INDEX_80000008
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#define index_cpu_AMD_IBRS CPUID_INDEX_80000008
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#define index_cpu_AMD_STIBP CPUID_INDEX_80000008
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#define index_cpu_AMD_SSBD CPUID_INDEX_80000008
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#define index_cpu_AMD_VIRT_SSBD CPUID_INDEX_80000008
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/* CPUID_INDEX_7_ECX_1. */
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/* EAX. */
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#define index_cpu_RAO_INT CPUID_INDEX_7_ECX_1
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#define index_cpu_AVX_VNNI CPUID_INDEX_7_ECX_1
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#define index_cpu_AVX512_BF16 CPUID_INDEX_7_ECX_1
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#define index_cpu_CMPCCXADD CPUID_INDEX_7_ECX_1
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#define index_cpu_FZLRM CPUID_INDEX_7_ECX_1
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#define index_cpu_FSRS CPUID_INDEX_7_ECX_1
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#define index_cpu_FSRCS CPUID_INDEX_7_ECX_1
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#define index_cpu_AMX_FP16 CPUID_INDEX_7_ECX_1
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#define index_cpu_HRESET CPUID_INDEX_7_ECX_1
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#define index_cpu_AVX_IFMA CPUID_INDEX_7_ECX_1
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#define index_cpu_LAM CPUID_INDEX_7_ECX_1
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#define index_cpu_AVX_VNNI_INT8 CPUID_INDEX_7_ECX_1
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#define index_cpu_AVX_NE_CONVERT CPUID_INDEX_7_ECX_1
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#define index_cpu_AMX_COMPLEX CPUID_INDEX_7_ECX_1
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#define index_cpu_PREFETCHI CPUID_INDEX_7_ECX_1
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/* CPUID_INDEX_19. */
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/* EBX. */
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#define index_cpu_AESKLE CPUID_INDEX_19
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#define index_cpu_WIDE_KL CPUID_INDEX_19
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/* CPUID_INDEX_14_ECX_0. */
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/* EBX. */
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#define index_cpu_PTWRITE CPUID_INDEX_14_ECX_0
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/* CPUID_INDEX_1. */
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/* ECX. */
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#define reg_SSE3 ecx
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#define reg_PCLMULQDQ ecx
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#define reg_DTES64 ecx
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#define reg_MONITOR ecx
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#define reg_DS_CPL ecx
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#define reg_VMX ecx
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#define reg_SMX ecx
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#define reg_EIST ecx
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#define reg_TM2 ecx
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#define reg_SSSE3 ecx
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#define reg_CNXT_ID ecx
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#define reg_SDBG ecx
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#define reg_FMA ecx
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#define reg_CMPXCHG16B ecx
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#define reg_XTPRUPDCTRL ecx
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#define reg_PDCM ecx
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#define reg_INDEX_1_ECX_16 ecx
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#define reg_PCID ecx
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#define reg_DCA ecx
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#define reg_SSE4_1 ecx
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#define reg_SSE4_2 ecx
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#define reg_X2APIC ecx
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#define reg_MOVBE ecx
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#define reg_POPCNT ecx
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#define reg_TSC_DEADLINE ecx
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#define reg_AES ecx
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#define reg_XSAVE ecx
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#define reg_OSXSAVE ecx
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#define reg_AVX ecx
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#define reg_F16C ecx
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#define reg_RDRAND ecx
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#define reg_INDEX_1_ECX_31 ecx
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|
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/* EDX. */
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#define reg_FPU edx
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#define reg_VME edx
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#define reg_DE edx
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#define reg_PSE edx
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#define reg_TSC edx
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#define reg_MSR edx
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#define reg_PAE edx
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#define reg_MCE edx
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#define reg_CX8 edx
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#define reg_APIC edx
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#define reg_INDEX_1_EDX_10 edx
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#define reg_SEP edx
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#define reg_MTRR edx
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#define reg_PGE edx
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#define reg_MCA edx
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#define reg_CMOV edx
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#define reg_PAT edx
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#define reg_PSE_36 edx
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#define reg_PSN edx
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#define reg_CLFSH edx
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#define reg_INDEX_1_EDX_20 edx
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#define reg_DS edx
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#define reg_ACPI edx
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#define reg_MMX edx
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#define reg_FXSR edx
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#define reg_SSE edx
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#define reg_SSE2 edx
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#define reg_SS edx
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#define reg_HTT edx
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#define reg_TM edx
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#define reg_INDEX_1_EDX_30 edx
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#define reg_PBE edx
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/* CPUID_INDEX_7. */
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/* EBX. */
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#define reg_FSGSBASE ebx
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#define reg_TSC_ADJUST ebx
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#define reg_SGX ebx
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#define reg_BMI1 ebx
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#define reg_HLE ebx
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#define reg_BMI2 ebx
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#define reg_AVX2 ebx
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#define reg_INDEX_7_EBX_6 ebx
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#define reg_SMEP ebx
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#define reg_ERMS ebx
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#define reg_INVPCID ebx
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#define reg_RTM ebx
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#define reg_RDT_M ebx
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#define reg_DEPR_FPU_CS_DS ebx
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#define reg_MPX ebx
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#define reg_RDT_A ebx
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#define reg_AVX512F ebx
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#define reg_AVX512DQ ebx
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#define reg_RDSEED ebx
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#define reg_ADX ebx
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#define reg_SMAP ebx
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#define reg_AVX512_IFMA ebx
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#define reg_INDEX_7_EBX_22 ebx
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#define reg_CLFLUSHOPT ebx
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#define reg_CLWB ebx
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#define reg_TRACE ebx
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#define reg_AVX512PF ebx
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#define reg_AVX512ER ebx
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#define reg_AVX512CD ebx
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#define reg_SHA ebx
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#define reg_AVX512BW ebx
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#define reg_AVX512VL ebx
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|
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/* ECX. */
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#define reg_PREFETCHWT1 ecx
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#define reg_AVX512_VBMI ecx
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#define reg_UMIP ecx
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#define reg_PKU ecx
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#define reg_OSPKE ecx
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#define reg_WAITPKG ecx
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#define reg_AVX512_VBMI2 ecx
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#define reg_SHSTK ecx
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#define reg_GFNI ecx
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#define reg_VAES ecx
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#define reg_VPCLMULQDQ ecx
|
|
#define reg_AVX512_VNNI ecx
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|
#define reg_AVX512_BITALG ecx
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|
#define reg_INDEX_7_ECX_13 ecx
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|
#define reg_AVX512_VPOPCNTDQ ecx
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|
#define reg_INDEX_7_ECX_15 ecx
|
|
#define reg_INDEX_7_ECX_16 ecx
|
|
#define reg_RDPID ecx
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|
#define reg_KL ecx
|
|
#define reg_INDEX_7_ECX_24 ecx
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|
#define reg_CLDEMOTE ecx
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|
#define reg_INDEX_7_ECX_26 ecx
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|
#define reg_MOVDIRI ecx
|
|
#define reg_MOVDIR64B ecx
|
|
#define reg_ENQCMD ecx
|
|
#define reg_SGX_LC ecx
|
|
#define reg_PKS ecx
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|
|
|
/* EDX. */
|
|
#define reg_INDEX_7_EDX_0 edx
|
|
#define reg_INDEX_7_EDX_1 edx
|
|
#define reg_AVX512_4VNNIW edx
|
|
#define reg_AVX512_4FMAPS edx
|
|
#define reg_FSRM edx
|
|
#define reg_UINTR edx
|
|
#define reg_INDEX_7_EDX_6 edx
|
|
#define reg_INDEX_7_EDX_7 edx
|
|
#define reg_AVX512_VP2INTERSECT edx
|
|
#define reg_INDEX_7_EDX_9 edx
|
|
#define reg_MD_CLEAR edx
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|
#define reg_RTM_ALWAYS_ABORT edx
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|
#define reg_INDEX_7_EDX_12 edx
|
|
#define reg_INDEX_7_EDX_13 edx
|
|
#define reg_SERIALIZE edx
|
|
#define reg_HYBRID edx
|
|
#define reg_TSXLDTRK edx
|
|
#define reg_INDEX_7_EDX_17 edx
|
|
#define reg_PCONFIG edx
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|
#define reg_INDEX_7_EDX_19 edx
|
|
#define reg_IBT edx
|
|
#define reg_INDEX_7_EDX_21 edx
|
|
#define reg_AMX_BF16 edx
|
|
#define reg_AVX512_FP16 edx
|
|
#define reg_AMX_TILE edx
|
|
#define reg_AMX_INT8 edx
|
|
#define reg_IBRS_IBPB edx
|
|
#define reg_STIBP edx
|
|
#define reg_L1D_FLUSH edx
|
|
#define reg_ARCH_CAPABILITIES edx
|
|
#define reg_CORE_CAPABILITIES edx
|
|
#define reg_SSBD edx
|
|
|
|
/* CPUID_INDEX_80000001. */
|
|
|
|
/* ECX. */
|
|
#define reg_LAHF64_SAHF64 ecx
|
|
#define reg_SVM ecx
|
|
#define reg_LZCNT ecx
|
|
#define reg_SSE4A ecx
|
|
#define reg_PREFETCHW ecx
|
|
#define reg_XOP ecx
|
|
#define reg_LWP ecx
|
|
#define reg_FMA4 ecx
|
|
#define reg_TBM ecx
|
|
|
|
/* EDX. */
|
|
#define reg_SYSCALL_SYSRET edx
|
|
#define reg_NX edx
|
|
#define reg_PAGE1GB edx
|
|
#define reg_RDTSCP edx
|
|
#define reg_LM edx
|
|
|
|
/* CPUID_INDEX_D_ECX_1. */
|
|
|
|
/* EAX. */
|
|
#define reg_XSAVEOPT eax
|
|
#define reg_XSAVEC eax
|
|
#define reg_XGETBV_ECX_1 eax
|
|
#define reg_XSAVES eax
|
|
#define reg_XFD eax
|
|
|
|
/* CPUID_INDEX_80000007. */
|
|
|
|
/* EDX. */
|
|
#define reg_INVARIANT_TSC edx
|
|
|
|
/* CPUID_INDEX_80000008. */
|
|
|
|
/* EBX. */
|
|
#define reg_WBNOINVD ebx
|
|
#define reg_AMD_IBPB ebx
|
|
#define reg_AMD_IBRS ebx
|
|
#define reg_AMD_STIBP ebx
|
|
#define reg_AMD_SSBD ebx
|
|
#define reg_AMD_VIRT_SSBD ebx
|
|
|
|
/* CPUID_INDEX_7_ECX_1. */
|
|
|
|
/* EAX. */
|
|
#define reg_RAO_INT eax
|
|
#define reg_AVX_VNNI eax
|
|
#define reg_AVX512_BF16 eax
|
|
#define reg_CMPCCXADD eax
|
|
#define reg_FZLRM eax
|
|
#define reg_FSRS eax
|
|
#define reg_FSRCS eax
|
|
#define reg_AMX_FP16 eax
|
|
#define reg_HRESET eax
|
|
#define reg_AVX_IFMA eax
|
|
#define reg_LAM eax
|
|
|
|
/* EDX. */
|
|
#define reg_AVX_VNNI_INT8 edx
|
|
#define reg_AVX_NE_CONVERT edx
|
|
#define reg_AMX_COMPLEX edx
|
|
#define reg_PREFETCHI edx
|
|
|
|
/* CPUID_INDEX_19. */
|
|
|
|
/* EBX. */
|
|
#define reg_AESKLE ebx
|
|
#define reg_WIDE_KL ebx
|
|
|
|
/* CPUID_INDEX_14_ECX_0. */
|
|
|
|
/* EBX. */
|
|
#define reg_PTWRITE ebx
|
|
|
|
/* PREFERRED_FEATURE_INDEX_1. First define the bitindex values
|
|
sequentially, then define the bit_arch* and index_arch_* lookup
|
|
constants. */
|
|
enum
|
|
{
|
|
#define BIT(x) _bitindex_arch_##x ,
|
|
#include "cpu-features-preferred_feature_index_1.def"
|
|
#undef BIT
|
|
};
|
|
enum
|
|
{
|
|
#define BIT(x) \
|
|
bit_arch_##x = 1u << _bitindex_arch_##x , \
|
|
index_arch_##x = PREFERRED_FEATURE_INDEX_1,
|
|
#include "cpu-features-preferred_feature_index_1.def"
|
|
#undef BIT
|
|
};
|
|
|
|
/* XCR0 Feature flags. */
|
|
#define bit_XMM_state (1u << 1)
|
|
#define bit_YMM_state (1u << 2)
|
|
#define bit_Opmask_state (1u << 5)
|
|
#define bit_ZMM0_15_state (1u << 6)
|
|
#define bit_ZMM16_31_state (1u << 7)
|
|
#define bit_XTILECFG_state (1u << 17)
|
|
#define bit_XTILEDATA_state (1u << 18)
|
|
|
|
enum cpu_features_kind
|
|
{
|
|
arch_kind_unknown = 0,
|
|
arch_kind_intel,
|
|
arch_kind_amd,
|
|
arch_kind_zhaoxin,
|
|
arch_kind_other
|
|
};
|
|
|
|
struct cpu_features_basic
|
|
{
|
|
enum cpu_features_kind kind;
|
|
int max_cpuid;
|
|
unsigned int family;
|
|
unsigned int model;
|
|
unsigned int stepping;
|
|
};
|
|
|
|
struct cpuid_registers
|
|
{
|
|
unsigned int eax;
|
|
unsigned int ebx;
|
|
unsigned int ecx;
|
|
unsigned int edx;
|
|
};
|
|
|
|
struct cpuid_feature_internal
|
|
{
|
|
union
|
|
{
|
|
unsigned int cpuid_array[4];
|
|
struct cpuid_registers cpuid;
|
|
};
|
|
union
|
|
{
|
|
unsigned int active_array[4];
|
|
struct cpuid_registers active;
|
|
};
|
|
};
|
|
|
|
/* NB: When adding new fields, update sysdeps/x86/dl-diagnostics-cpu.c
|
|
to print them. */
|
|
struct cpu_features
|
|
{
|
|
struct cpu_features_basic basic;
|
|
struct cpuid_feature_internal features[CPUID_INDEX_MAX];
|
|
unsigned int preferred[PREFERRED_FEATURE_INDEX_MAX];
|
|
/* X86 micro-architecture ISA levels. */
|
|
unsigned int isa_1;
|
|
/* The state size for XSAVEC or XSAVE. The type must be unsigned long
|
|
int so that we use
|
|
|
|
sub xsave_state_size_offset(%rip) %RSP_LP
|
|
|
|
in _dl_runtime_resolve. */
|
|
unsigned long int xsave_state_size;
|
|
/* The full state size for XSAVE when XSAVEC is disabled by
|
|
|
|
GLIBC_TUNABLES=glibc.cpu.hwcaps=-XSAVEC
|
|
*/
|
|
unsigned int xsave_state_full_size;
|
|
/* Data cache size for use in memory and string routines, typically
|
|
L1 size. */
|
|
unsigned long int data_cache_size;
|
|
/* Shared cache size for use in memory and string routines, typically
|
|
L2 or L3 size. */
|
|
unsigned long int shared_cache_size;
|
|
/* Threshold to use non temporal store. */
|
|
unsigned long int non_temporal_threshold;
|
|
/* Threshold to use "rep movsb". */
|
|
unsigned long int rep_movsb_threshold;
|
|
/* Threshold to stop using "rep movsb". */
|
|
unsigned long int rep_movsb_stop_threshold;
|
|
/* Threshold to use "rep stosb". */
|
|
unsigned long int rep_stosb_threshold;
|
|
/* _SC_LEVEL1_ICACHE_SIZE. */
|
|
unsigned long int level1_icache_size;
|
|
/* _SC_LEVEL1_ICACHE_LINESIZE. */
|
|
unsigned long int level1_icache_linesize;
|
|
/* _SC_LEVEL1_DCACHE_SIZE. */
|
|
unsigned long int level1_dcache_size;
|
|
/* _SC_LEVEL1_DCACHE_ASSOC. */
|
|
unsigned long int level1_dcache_assoc;
|
|
/* _SC_LEVEL1_DCACHE_LINESIZE. */
|
|
unsigned long int level1_dcache_linesize;
|
|
/* _SC_LEVEL2_CACHE_ASSOC. */
|
|
unsigned long int level2_cache_size;
|
|
/* _SC_LEVEL2_DCACHE_ASSOC. */
|
|
unsigned long int level2_cache_assoc;
|
|
/* _SC_LEVEL2_CACHE_LINESIZE. */
|
|
unsigned long int level2_cache_linesize;
|
|
/* /_SC_LEVEL3_CACHE_SIZE. */
|
|
unsigned long int level3_cache_size;
|
|
/* _SC_LEVEL3_CACHE_ASSOC. */
|
|
unsigned long int level3_cache_assoc;
|
|
/* _SC_LEVEL3_CACHE_LINESIZE. */
|
|
unsigned long int level3_cache_linesize;
|
|
/* /_SC_LEVEL4_CACHE_SIZE. */
|
|
unsigned long int level4_cache_size;
|
|
/* When no user non_temporal_threshold is specified. We default to
|
|
cachesize / cachesize_non_temporal_divisor. */
|
|
unsigned long int cachesize_non_temporal_divisor;
|
|
};
|
|
|
|
/* Get a pointer to the CPU features structure. */
|
|
extern const struct cpu_features *_dl_x86_get_cpu_features (void)
|
|
__attribute__ ((pure));
|
|
|
|
#define __get_cpu_features() _dl_x86_get_cpu_features()
|
|
|
|
#if defined (_LIBC) && !IS_IN (nonlib)
|
|
/* Unused for x86. */
|
|
# define INIT_ARCH()
|
|
# define _dl_x86_get_cpu_features() (&GLRO(dl_x86_cpu_features))
|
|
extern void _dl_x86_init_cpu_features (void) attribute_hidden;
|
|
#endif
|
|
|
|
#ifdef __x86_64__
|
|
# define HAS_CPUID 1
|
|
#elif (defined __i586__ || defined __pentium__ \
|
|
|| defined __geode__ || defined __k6__)
|
|
# define HAS_CPUID 1
|
|
# define HAS_I586 1
|
|
# define HAS_I686 HAS_ARCH_FEATURE (I686)
|
|
#elif defined __i486__
|
|
# define HAS_CPUID 0
|
|
# define HAS_I586 HAS_ARCH_FEATURE (I586)
|
|
# define HAS_I686 HAS_ARCH_FEATURE (I686)
|
|
#else
|
|
# define HAS_CPUID 1
|
|
# define HAS_I586 1
|
|
# define HAS_I686 1
|
|
#endif
|
|
|
|
#endif /* include/cpu-features.h */
|