vendor/golang.org/x/sys/cpu/cpu_ppc64x.go


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// 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
}