| // 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. |
| |
| // +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 |
| } |