| // 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. |
| |
| //go:build linux && (ppc64 || ppc64le) |
| // +build linux |
| // +build ppc64 ppc64le |
| |
| package cpu |
| |
| // 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 |
| } |
