mirror of
https://github.com/rwinkhart/sys.git
synced 2026-08-28 04:46:44 -04:00
Michael Munday
153ac47618
These are an implementation detail and should not have been exported. This only affects Linux on platforms other than 386 and amd64. Fixes golang/go#30255. Change-Id: Ib23b42a7309fd6093b6b9d8b6628de222a3928be Reviewed-on: https://go-review.googlesource.com/c/163004 Run-TryBot: Michael Munday <mike.munday@ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
33 lines
787 B
Go
33 lines
787 B
Go
// Copyright 2018 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 ppc64 ppc64le
|
|
|
|
package cpu
|
|
|
|
const cacheLineSize = 128
|
|
|
|
// HWCAP/HWCAP2 bits. These are exposed by the kernel.
|
|
const (
|
|
// ISA Level
|
|
_PPC_FEATURE2_ARCH_2_07 = 0x80000000
|
|
_PPC_FEATURE2_ARCH_3_00 = 0x00800000
|
|
|
|
// CPU features
|
|
_PPC_FEATURE2_DARN = 0x00200000
|
|
_PPC_FEATURE2_SCV = 0x00100000
|
|
)
|
|
|
|
func doinit() {
|
|
// HWCAP2 feature bits
|
|
PPC64.IsPOWER8 = isSet(hwCap2, _PPC_FEATURE2_ARCH_2_07)
|
|
PPC64.IsPOWER9 = isSet(hwCap2, _PPC_FEATURE2_ARCH_3_00)
|
|
PPC64.HasDARN = isSet(hwCap2, _PPC_FEATURE2_DARN)
|
|
PPC64.HasSCV = isSet(hwCap2, _PPC_FEATURE2_SCV)
|
|
}
|
|
|
|
func isSet(hwc uint, value uint) bool {
|
|
return hwc&value != 0
|
|
}
|