32 lines
674 B
Go
32 lines
674 B
Go
// Copyright 2019 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
//go:build mips64 || mips64le
|
|
|
|
package cpu
|
|
|
|
// const CacheLinePadSize = 32
|
|
|
|
// This is initialized by archauxv and should not be changed after it is
|
|
// initialized.
|
|
var HWCap uint
|
|
|
|
// HWCAP bits. These are exposed by the Linux kernel 5.4.
|
|
const (
|
|
// CPU features
|
|
hwcap_MIPS_MSA = 1 << 1
|
|
)
|
|
|
|
func doinit() {
|
|
options = []option{
|
|
{Name: "msa", Feature: &MIPS64X.HasMSA},
|
|
}
|
|
|
|
// HWCAP feature bits
|
|
MIPS64X.HasMSA = isSet(HWCap, hwcap_MIPS_MSA)
|
|
}
|
|
|
|
func isSet(hwc uint, value uint) bool {
|
|
return hwc&value != 0
|
|
}
|