summaryrefslogtreecommitdiffstats
path: root/vendor/golang.org/x/sys/cpu/cpu_aix.go
blob: da298966872682a900c99965d9f121333d4e4cf2 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
// 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 aix

package cpu

const cacheLineSize = 128

const (
	// getsystemcfg constants
	_SC_IMPL     = 2
	_IMPL_POWER8 = 0x10000
	_IMPL_POWER9 = 0x20000
)

func init() {
	impl := getsystemcfg(_SC_IMPL)
	if impl&_IMPL_POWER8 != 0 {
		PPC64.IsPOWER8 = true
	}
	if impl&_IMPL_POWER9 != 0 {
		PPC64.IsPOWER9 = true
	}

	Initialized = true
}

func getsystemcfg(label int) (n uint64) {
	r0, _ := callgetsystemcfg(label)
	n = uint64(r0)
	return
}