2018-12-04 02:41:10 +00:00
|
|
|
/*
|
|
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
|
|
you may not use this file except in compliance with the License.
|
|
|
|
You may obtain a copy of the License at
|
|
|
|
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
|
|
See the License for the specific language governing permissions and
|
|
|
|
limitations under the License.
|
|
|
|
*/
|
|
|
|
|
2021-03-02 13:17:33 +00:00
|
|
|
package cpu
|
2018-12-04 02:41:10 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
#include <sys/auxv.h>
|
|
|
|
#define HWCAP_CPUID (1 << 11)
|
|
|
|
|
|
|
|
unsigned long gethwcap() {
|
|
|
|
return getauxval(AT_HWCAP);
|
|
|
|
}
|
2022-10-13 20:54:37 +00:00
|
|
|
unsigned long gethwcap2() {
|
|
|
|
return getauxval(AT_HWCAP2);
|
|
|
|
}
|
2018-12-04 02:41:10 +00:00
|
|
|
*/
|
|
|
|
import "C"
|
|
|
|
|
|
|
|
/* all special features for arm64 should be defined here */
|
|
|
|
const (
|
|
|
|
/* extension instructions */
|
|
|
|
CPU_ARM64_FEATURE_FP = 1 << iota
|
|
|
|
CPU_ARM64_FEATURE_ASIMD
|
|
|
|
CPU_ARM64_FEATURE_EVTSTRM
|
|
|
|
CPU_ARM64_FEATURE_AES
|
|
|
|
CPU_ARM64_FEATURE_PMULL
|
|
|
|
CPU_ARM64_FEATURE_SHA1
|
|
|
|
CPU_ARM64_FEATURE_SHA2
|
|
|
|
CPU_ARM64_FEATURE_CRC32
|
|
|
|
CPU_ARM64_FEATURE_ATOMICS
|
|
|
|
CPU_ARM64_FEATURE_FPHP
|
|
|
|
CPU_ARM64_FEATURE_ASIMDHP
|
|
|
|
CPU_ARM64_FEATURE_CPUID
|
|
|
|
CPU_ARM64_FEATURE_ASIMDRDM
|
|
|
|
CPU_ARM64_FEATURE_JSCVT
|
|
|
|
CPU_ARM64_FEATURE_FCMA
|
|
|
|
CPU_ARM64_FEATURE_LRCPC
|
|
|
|
CPU_ARM64_FEATURE_DCPOP
|
|
|
|
CPU_ARM64_FEATURE_SHA3
|
|
|
|
CPU_ARM64_FEATURE_SM3
|
|
|
|
CPU_ARM64_FEATURE_SM4
|
|
|
|
CPU_ARM64_FEATURE_ASIMDDP
|
|
|
|
CPU_ARM64_FEATURE_SHA512
|
|
|
|
CPU_ARM64_FEATURE_SVE
|
2022-10-13 18:13:31 +00:00
|
|
|
CPU_ARM64_FEATURE_ASIMDFHM
|
|
|
|
CPU_ARM64_FEATURE_DIT
|
|
|
|
CPU_ARM64_FEATURE_USCAT
|
|
|
|
CPU_ARM64_FEATURE_ILRCPC
|
|
|
|
CPU_ARM64_FEATURE_FLAGM
|
|
|
|
CPU_ARM64_FEATURE_SSBS
|
|
|
|
CPU_ARM64_FEATURE_SB
|
|
|
|
CPU_ARM64_FEATURE_PACA
|
|
|
|
CPU_ARM64_FEATURE_PACG
|
2018-12-04 02:41:10 +00:00
|
|
|
)
|
|
|
|
|
2022-10-13 20:54:37 +00:00
|
|
|
const (
|
|
|
|
/* extension instructions */
|
|
|
|
CPU_ARM64_FEATURE2_DCPODP = 1 << iota
|
|
|
|
CPU_ARM64_FEATURE2_SVE2
|
|
|
|
CPU_ARM64_FEATURE2_SVEAES
|
|
|
|
CPU_ARM64_FEATURE2_SVEPMULL
|
|
|
|
CPU_ARM64_FEATURE2_SVEBITPERM
|
|
|
|
CPU_ARM64_FEATURE2_SVESHA3
|
|
|
|
CPU_ARM64_FEATURE2_SVESM4
|
|
|
|
CPU_ARM64_FEATURE2_FLAGM2
|
|
|
|
CPU_ARM64_FEATURE2_FRINT
|
|
|
|
CPU_ARM64_FEATURE2_SVEI8MM
|
|
|
|
CPU_ARM64_FEATURE2_SVEF32MM
|
|
|
|
CPU_ARM64_FEATURE2_SVEF64MM
|
|
|
|
CPU_ARM64_FEATURE2_SVEBF16
|
|
|
|
CPU_ARM64_FEATURE2_I8MM
|
|
|
|
CPU_ARM64_FEATURE2_BF16
|
|
|
|
CPU_ARM64_FEATURE2_DGH
|
|
|
|
CPU_ARM64_FEATURE2_RNG
|
|
|
|
CPU_ARM64_FEATURE2_BTI
|
|
|
|
CPU_ARM64_FEATURE2_MTE
|
|
|
|
CPU_ARM64_FEATURE2_ECV
|
|
|
|
CPU_ARM64_FEATURE2_AFP
|
|
|
|
CPU_ARM64_FEATURE2_RPRES
|
|
|
|
CPU_ARM64_FEATURE2_MTE3
|
|
|
|
CPU_ARM64_FEATURE2_SME
|
|
|
|
CPU_ARM64_FEATURE2_SME_I16I64
|
|
|
|
CPU_ARM64_FEATURE2_SME_F64F64
|
|
|
|
CPU_ARM64_FEATURE2_SME_I8I32
|
|
|
|
CPU_ARM64_FEATURE2_SME_F16F32
|
|
|
|
CPU_ARM64_FEATURE2_SME_B16F32
|
|
|
|
CPU_ARM64_FEATURE2_SME_F32F32
|
|
|
|
CPU_ARM64_FEATURE2_SME_FA64
|
|
|
|
CPU_ARM64_FEATURE2_WFXT
|
|
|
|
CPU_ARM64_FEATURE2_EBF16
|
|
|
|
CPU_ARM64_FEATURE2_SVE_EBF16
|
|
|
|
)
|
|
|
|
|
2018-12-04 02:41:10 +00:00
|
|
|
var flagNames_arm64 = map[uint64]string{
|
|
|
|
CPU_ARM64_FEATURE_FP: "FP",
|
|
|
|
CPU_ARM64_FEATURE_ASIMD: "ASIMD",
|
|
|
|
CPU_ARM64_FEATURE_EVTSTRM: "EVTSTRM",
|
|
|
|
CPU_ARM64_FEATURE_AES: "AES",
|
|
|
|
CPU_ARM64_FEATURE_PMULL: "PMULL",
|
|
|
|
CPU_ARM64_FEATURE_SHA1: "SHA1",
|
|
|
|
CPU_ARM64_FEATURE_SHA2: "SHA2",
|
|
|
|
CPU_ARM64_FEATURE_CRC32: "CRC32",
|
|
|
|
CPU_ARM64_FEATURE_ATOMICS: "ATOMICS",
|
|
|
|
CPU_ARM64_FEATURE_FPHP: "FPHP",
|
|
|
|
CPU_ARM64_FEATURE_ASIMDHP: "ASIMDHP",
|
|
|
|
CPU_ARM64_FEATURE_CPUID: "CPUID",
|
|
|
|
CPU_ARM64_FEATURE_ASIMDRDM: "ASIMDRDM",
|
|
|
|
CPU_ARM64_FEATURE_JSCVT: "JSCVT",
|
|
|
|
CPU_ARM64_FEATURE_FCMA: "FCMA",
|
|
|
|
CPU_ARM64_FEATURE_LRCPC: "LRCPC",
|
|
|
|
CPU_ARM64_FEATURE_DCPOP: "DCPOP",
|
|
|
|
CPU_ARM64_FEATURE_SHA3: "SHA3",
|
|
|
|
CPU_ARM64_FEATURE_SM3: "SM3",
|
|
|
|
CPU_ARM64_FEATURE_SM4: "SM4",
|
|
|
|
CPU_ARM64_FEATURE_ASIMDDP: "ASIMDDP",
|
|
|
|
CPU_ARM64_FEATURE_SHA512: "SHA512",
|
|
|
|
CPU_ARM64_FEATURE_SVE: "SVE",
|
2022-10-13 18:13:31 +00:00
|
|
|
CPU_ARM64_FEATURE_ASIMDFHM: "ASIMDFHM",
|
|
|
|
CPU_ARM64_FEATURE_DIT: "DIT",
|
|
|
|
CPU_ARM64_FEATURE_USCAT: "USCAT",
|
|
|
|
CPU_ARM64_FEATURE_ILRCPC: "ILRCPC",
|
|
|
|
CPU_ARM64_FEATURE_FLAGM: "FLAGM",
|
|
|
|
CPU_ARM64_FEATURE_SSBS: "SSBS",
|
|
|
|
CPU_ARM64_FEATURE_SB: "SB",
|
|
|
|
CPU_ARM64_FEATURE_PACA: "PACA",
|
|
|
|
CPU_ARM64_FEATURE_PACG: "PACG",
|
2018-12-04 02:41:10 +00:00
|
|
|
}
|
|
|
|
|
2022-10-13 20:54:37 +00:00
|
|
|
var flag2Names_arm64 = map[uint64]string{
|
|
|
|
CPU_ARM64_FEATURE2_DCPODP: "DCPODP",
|
|
|
|
CPU_ARM64_FEATURE2_SVE2: "SVE2",
|
|
|
|
CPU_ARM64_FEATURE2_SVEAES: "SVEAES",
|
|
|
|
CPU_ARM64_FEATURE2_SVEPMULL: "SVEPMULL",
|
|
|
|
CPU_ARM64_FEATURE2_SVEBITPERM: "SVEBITPERM",
|
|
|
|
CPU_ARM64_FEATURE2_SVESHA3: "SVESHA3",
|
|
|
|
CPU_ARM64_FEATURE2_SVESM4: "SVESM4",
|
|
|
|
CPU_ARM64_FEATURE2_FLAGM2: "FLAGM2",
|
|
|
|
CPU_ARM64_FEATURE2_FRINT: "FRINT",
|
|
|
|
CPU_ARM64_FEATURE2_SVEI8MM: "SVEI8MM",
|
|
|
|
CPU_ARM64_FEATURE2_SVEF32MM: "SVEF32MM",
|
|
|
|
CPU_ARM64_FEATURE2_SVEF64MM: "SVEF64MM",
|
|
|
|
CPU_ARM64_FEATURE2_SVEBF16: "SVEBF16",
|
|
|
|
CPU_ARM64_FEATURE2_I8MM: "I8MM",
|
|
|
|
CPU_ARM64_FEATURE2_BF16: "BF16",
|
|
|
|
CPU_ARM64_FEATURE2_DGH: "DGH",
|
|
|
|
CPU_ARM64_FEATURE2_RNG: "RNG",
|
|
|
|
CPU_ARM64_FEATURE2_BTI: "BTI",
|
|
|
|
CPU_ARM64_FEATURE2_MTE: "MTE",
|
|
|
|
CPU_ARM64_FEATURE2_ECV: "ECV",
|
|
|
|
CPU_ARM64_FEATURE2_AFP: "AFP",
|
|
|
|
CPU_ARM64_FEATURE2_RPRES: "RPRES",
|
|
|
|
CPU_ARM64_FEATURE2_MTE3: "MTE3",
|
|
|
|
CPU_ARM64_FEATURE2_SME: "SME",
|
|
|
|
CPU_ARM64_FEATURE2_SME_I16I64: "SMEI16I64",
|
|
|
|
CPU_ARM64_FEATURE2_SME_F64F64: "SMEF64F64",
|
|
|
|
CPU_ARM64_FEATURE2_SME_I8I32: "SMEI8I32",
|
|
|
|
CPU_ARM64_FEATURE2_SME_F16F32: "SMEF16F32",
|
|
|
|
CPU_ARM64_FEATURE2_SME_B16F32: "SMEB16F32",
|
|
|
|
CPU_ARM64_FEATURE2_SME_F32F32: "SMEF32F32",
|
|
|
|
CPU_ARM64_FEATURE2_SME_FA64: "SMEFA64",
|
|
|
|
CPU_ARM64_FEATURE2_WFXT: "WFXT",
|
|
|
|
CPU_ARM64_FEATURE2_EBF16: "EBF16",
|
|
|
|
CPU_ARM64_FEATURE2_SVE_EBF16: "SVEEBF16",
|
|
|
|
}
|
|
|
|
|
2021-03-02 13:17:33 +00:00
|
|
|
func getCpuidFlags() []string {
|
2018-12-04 02:41:10 +00:00
|
|
|
r := make([]string, 0, 20)
|
|
|
|
hwcap := uint64(C.gethwcap())
|
2022-10-13 20:54:37 +00:00
|
|
|
hwcap2 := uint64(C.gethwcap2())
|
2018-12-04 02:41:10 +00:00
|
|
|
for i := uint(0); i < 64; i++ {
|
|
|
|
key := uint64(1 << i)
|
|
|
|
val := flagNames_arm64[key]
|
|
|
|
if hwcap&key != 0 {
|
|
|
|
r = append(r, val)
|
|
|
|
}
|
|
|
|
}
|
2022-10-13 20:54:37 +00:00
|
|
|
for i := uint(0); i < 64; i++ {
|
|
|
|
key := uint64(1 << i)
|
|
|
|
val := flag2Names_arm64[key]
|
|
|
|
if hwcap2&key != 0 {
|
|
|
|
r = append(r, val)
|
|
|
|
}
|
|
|
|
}
|
2018-12-04 02:41:10 +00:00
|
|
|
return r
|
|
|
|
}
|