Files
sys/cpu/cpu_linux_mips64x.go
Tobias Klauser 062a44052d cpu: add mips64x feature detection
Follow CL 200579

Change-Id: Ibedd6569bda3d7836ccb77a7746ed0e5df13c633
Reviewed-on: https://go-review.googlesource.com/c/sys/+/221698
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-03-02 08:32:56 +00:00

23 lines
465 B
Go

// Copyright 2020 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.
// +build mips64 mips64le
package cpu
// HWCAP bits. These are exposed by the Linux kernel 5.4.
const (
// CPU features
hwcap_MIPS_MSA = 1 << 1
)
func doinit() {
// HWCAP feature bits
MIPS64X.HasMSA = isSet(hwCap, hwcap_MIPS_MSA)
}
func isSet(hwc uint, value uint) bool {
return hwc&value != 0
}