1 // Copyright 2018 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
7 const cacheLineSize = 64
9 // HWCAP/HWCAP2 bits. These are exposed by Linux.
13 hwcap_EVTSTRM = 1 << 2
19 hwcap_ATOMICS = 1 << 8
21 hwcap_ASIMDHP = 1 << 10
23 hwcap_ASIMDRDM = 1 << 12
31 hwcap_ASIMDDP = 1 << 20
32 hwcap_SHA512 = 1 << 21
34 hwcap_ASIMDFHM = 1 << 23
39 ARM64.HasFP = isSet(hwCap, hwcap_FP)
40 ARM64.HasASIMD = isSet(hwCap, hwcap_ASIMD)
41 ARM64.HasEVTSTRM = isSet(hwCap, hwcap_EVTSTRM)
42 ARM64.HasAES = isSet(hwCap, hwcap_AES)
43 ARM64.HasPMULL = isSet(hwCap, hwcap_PMULL)
44 ARM64.HasSHA1 = isSet(hwCap, hwcap_SHA1)
45 ARM64.HasSHA2 = isSet(hwCap, hwcap_SHA2)
46 ARM64.HasCRC32 = isSet(hwCap, hwcap_CRC32)
47 ARM64.HasATOMICS = isSet(hwCap, hwcap_ATOMICS)
48 ARM64.HasFPHP = isSet(hwCap, hwcap_FPHP)
49 ARM64.HasASIMDHP = isSet(hwCap, hwcap_ASIMDHP)
50 ARM64.HasCPUID = isSet(hwCap, hwcap_CPUID)
51 ARM64.HasASIMDRDM = isSet(hwCap, hwcap_ASIMDRDM)
52 ARM64.HasJSCVT = isSet(hwCap, hwcap_JSCVT)
53 ARM64.HasFCMA = isSet(hwCap, hwcap_FCMA)
54 ARM64.HasLRCPC = isSet(hwCap, hwcap_LRCPC)
55 ARM64.HasDCPOP = isSet(hwCap, hwcap_DCPOP)
56 ARM64.HasSHA3 = isSet(hwCap, hwcap_SHA3)
57 ARM64.HasSM3 = isSet(hwCap, hwcap_SM3)
58 ARM64.HasSM4 = isSet(hwCap, hwcap_SM4)
59 ARM64.HasASIMDDP = isSet(hwCap, hwcap_ASIMDDP)
60 ARM64.HasSHA512 = isSet(hwCap, hwcap_SHA512)
61 ARM64.HasSVE = isSet(hwCap, hwcap_SVE)
62 ARM64.HasASIMDFHM = isSet(hwCap, hwcap_ASIMDFHM)
65 func isSet(hwc uint, value uint) bool {