1a2f01efa6
Update the Go library to the 1.10beta1 release.
Requires a few changes to the compiler for modifications to the map
runtime code, and to handle some nowritebarrier cases in the runtime.
Reviewed-on: https://go-review.googlesource.com/86455
gotools/:
* Makefile.am (go_cmd_vet_files): New variable.
(go_cmd_buildid_files, go_cmd_test2json_files): New variables.
(s-zdefaultcc): Change from constants to functions.
(noinst_PROGRAMS): Add vet, buildid, and test2json.
(cgo$(EXEEXT)): Link against $(LIBGOTOOL).
(vet$(EXEEXT)): New target.
(buildid$(EXEEXT)): New target.
(test2json$(EXEEXT)): New target.
(install-exec-local): Install all $(noinst_PROGRAMS).
(uninstall-local): Uninstasll all $(noinst_PROGRAMS).
(check-go-tool): Depend on $(noinst_PROGRAMS). Copy down
objabi.go.
(check-runtime): Depend on $(noinst_PROGRAMS).
(check-cgo-test, check-carchive-test): Likewise.
(check-vet): New target.
(check): Depend on check-vet. Look at cmd_vet-testlog.
(.PHONY): Add check-vet.
* Makefile.in: Rebuild.
From-SVN: r256365
55 lines
1.8 KiB
Go
55 lines
1.8 KiB
Go
// Copyright 2017 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
|
|
|
|
// ppc64x doesn't have a 'cpuid' equivalent, so we rely on HWCAP/HWCAP2.
|
|
// These are linknamed in runtime/os_linux_ppc64x.go and are initialized by
|
|
// archauxv().
|
|
var ppc64x_hwcap uint
|
|
var ppc64x_hwcap2 uint
|
|
|
|
// 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_FEATURE_HAS_ALTIVEC = 0x10000000
|
|
_PPC_FEATURE_HAS_DFP = 0x00000400
|
|
_PPC_FEATURE_HAS_VSX = 0x00000080
|
|
_PPC_FEATURE2_HAS_HTM = 0x40000000
|
|
_PPC_FEATURE2_HAS_ISEL = 0x08000000
|
|
_PPC_FEATURE2_HAS_VEC_CRYPTO = 0x02000000
|
|
_PPC_FEATURE2_HTM_NOSC = 0x01000000
|
|
_PPC_FEATURE2_DARN = 0x00200000
|
|
_PPC_FEATURE2_SCV = 0x00100000
|
|
)
|
|
|
|
func init() {
|
|
// HWCAP feature bits
|
|
PPC64.HasVMX = isSet(ppc64x_hwcap, _PPC_FEATURE_HAS_ALTIVEC)
|
|
PPC64.HasDFP = isSet(ppc64x_hwcap, _PPC_FEATURE_HAS_DFP)
|
|
PPC64.HasVSX = isSet(ppc64x_hwcap, _PPC_FEATURE_HAS_VSX)
|
|
|
|
// HWCAP2 feature bits
|
|
PPC64.IsPOWER8 = isSet(ppc64x_hwcap2, _PPC_FEATURE2_ARCH_2_07)
|
|
PPC64.HasHTM = isSet(ppc64x_hwcap2, _PPC_FEATURE2_HAS_HTM)
|
|
PPC64.HasISEL = isSet(ppc64x_hwcap2, _PPC_FEATURE2_HAS_ISEL)
|
|
PPC64.HasVCRYPTO = isSet(ppc64x_hwcap2, _PPC_FEATURE2_HAS_VEC_CRYPTO)
|
|
PPC64.HasHTMNOSC = isSet(ppc64x_hwcap2, _PPC_FEATURE2_HTM_NOSC)
|
|
PPC64.IsPOWER9 = isSet(ppc64x_hwcap2, _PPC_FEATURE2_ARCH_3_00)
|
|
PPC64.HasDARN = isSet(ppc64x_hwcap2, _PPC_FEATURE2_DARN)
|
|
PPC64.HasSCV = isSet(ppc64x_hwcap2, _PPC_FEATURE2_SCV)
|
|
}
|
|
|
|
func isSet(hwc uint, value uint) bool {
|
|
return hwc&value != 0
|
|
}
|