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Diffstat (limited to 'vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go')
-rw-r--r--vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go40
1 files changed, 40 insertions, 0 deletions
diff --git a/vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go b/vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go
new file mode 100644
index 0000000..1517ac6
--- /dev/null
+++ b/vendor/golang.org/x/sys/cpu/cpu_linux_s390x.go
@@ -0,0 +1,40 @@
+// Copyright 2019 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.
+
+package cpu
+
+const (
+ // bit mask values from /usr/include/bits/hwcap.h
+ hwcap_ZARCH = 2
+ hwcap_STFLE = 4
+ hwcap_MSA = 8
+ hwcap_LDISP = 16
+ hwcap_EIMM = 32
+ hwcap_DFP = 64
+ hwcap_ETF3EH = 256
+ hwcap_VX = 2048
+ hwcap_VXE = 8192
+)
+
+func initS390Xbase() {
+ // test HWCAP bit vector
+ has := func(featureMask uint) bool {
+ return hwCap&featureMask == featureMask
+ }
+
+ // mandatory
+ S390X.HasZARCH = has(hwcap_ZARCH)
+
+ // optional
+ S390X.HasSTFLE = has(hwcap_STFLE)
+ S390X.HasLDISP = has(hwcap_LDISP)
+ S390X.HasEIMM = has(hwcap_EIMM)
+ S390X.HasETF3EH = has(hwcap_ETF3EH)
+ S390X.HasDFP = has(hwcap_DFP)
+ S390X.HasMSA = has(hwcap_MSA)
+ S390X.HasVX = has(hwcap_VX)
+ if S390X.HasVX {
+ S390X.HasVXE = has(hwcap_VXE)
+ }
+}