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Make all our package sources use Go 1.17 gofmt format (adding //go:build lines). Not strictly necessary but will avoid spurious changes as files are edited. Part of //go:build change (#41184). See https://golang.org/design/draft-gobuild Change-Id: I01667f826428426a39c84717d02efa25fa44553c Reviewed-on: https://go-review.googlesource.com/c/sys/+/294490 TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by: Matt Layher <mdlayher@gmail.com> Trust: Josh Bleecher Snyder <josharian@gmail.com> Trust: Russ Cox <rsc@golang.org> Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> Run-TryBot: Russ Cox <rsc@golang.org>
33 lines
815 B
Go
33 lines
815 B
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build linux && (ppc64 || ppc64le)
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// +build linux
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// +build ppc64 ppc64le
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package cpu
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// HWCAP/HWCAP2 bits. These are exposed by the kernel.
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const (
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// ISA Level
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_PPC_FEATURE2_ARCH_2_07 = 0x80000000
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_PPC_FEATURE2_ARCH_3_00 = 0x00800000
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// CPU features
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_PPC_FEATURE2_DARN = 0x00200000
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_PPC_FEATURE2_SCV = 0x00100000
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)
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func doinit() {
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// HWCAP2 feature bits
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PPC64.IsPOWER8 = isSet(hwCap2, _PPC_FEATURE2_ARCH_2_07)
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PPC64.IsPOWER9 = isSet(hwCap2, _PPC_FEATURE2_ARCH_3_00)
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PPC64.HasDARN = isSet(hwCap2, _PPC_FEATURE2_DARN)
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PPC64.HasSCV = isSet(hwCap2, _PPC_FEATURE2_SCV)
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}
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func isSet(hwc uint, value uint) bool {
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return hwc&value != 0
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}
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