github.com/nibnait/go-learn@v0.0.0-20220227013611-dfa47ea6d2da/src/pkg/mod/golang.org/x/sys@v0.0.0-20210630005230-0f9fa26af87c/cpu/cpu_linux_mips64x.go (about)

     1  // Copyright 2020 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.
     4  
     5  //go:build linux && (mips64 || mips64le)
     6  // +build linux
     7  // +build mips64 mips64le
     8  
     9  package cpu
    10  
    11  // HWCAP bits. These are exposed by the Linux kernel 5.4.
    12  const (
    13  	// CPU features
    14  	hwcap_MIPS_MSA = 1 << 1
    15  )
    16  
    17  func doinit() {
    18  	// HWCAP feature bits
    19  	MIPS64X.HasMSA = isSet(hwCap, hwcap_MIPS_MSA)
    20  }
    21  
    22  func isSet(hwc uint, value uint) bool {
    23  	return hwc&value != 0
    24  }