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b8f7da6c5a
Except for lasx, all other features have been implemented in the Go mainline. Change-Id: I61a09396ed23d17991b641a1265e952585cb5636 Reviewed-on: https://go-review.googlesource.com/c/sys/+/655355 Reviewed-by: David Chase <drchase@google.com> Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Junyang Shao <shaojunyang@google.com> Reviewed-by: Meidan Li <limeidan@loongson.cn>
23 lines
632 B
Go
23 lines
632 B
Go
// Copyright 2025 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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package cpu
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// HWCAP bits. These are exposed by the Linux kernel.
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const (
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hwcap_LOONGARCH_LSX = 1 << 4
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hwcap_LOONGARCH_LASX = 1 << 5
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)
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func doinit() {
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// TODO: Features that require kernel support like LSX and LASX can
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// be detected here once needed in std library or by the compiler.
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Loong64.HasLSX = hwcIsSet(hwCap, hwcap_LOONGARCH_LSX)
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Loong64.HasLASX = hwcIsSet(hwCap, hwcap_LOONGARCH_LASX)
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}
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func hwcIsSet(hwc uint, val uint) bool {
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return hwc&val != 0
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}
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