1// Copyright 2019 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 mips64 || mips64le
6
7package cpu
8
9const CacheLinePadSize = 32
10
11// This is initialized by archauxv and should not be changed after it is
12// initialized.
13var HWCap uint
14
15// HWCAP bits. These are exposed by the Linux kernel 5.4.
16const (
17	// CPU features
18	hwcap_MIPS_MSA = 1 << 1
19)
20
21func doinit() {
22	options = []option{
23		{Name: "msa", Feature: &MIPS64X.HasMSA},
24	}
25
26	// HWCAP feature bits
27	MIPS64X.HasMSA = isSet(HWCap, hwcap_MIPS_MSA)
28}
29
30func isSet(hwc uint, value uint) bool {
31	return hwc&value != 0
32}
33