runtime/internal/atomic: delete arch1_*.go files

I made a copy of the per-arch _CacheLineSize definitons when checking in
runtime/internal/atomic. Now that runtime/internal/sys is checked in,
we can use the definition there.

Change-Id: I7242f6b633e4164f033b67ff471416b9d71c64d2
Reviewed-on: https://go-review.googlesource.com/16847
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

10 files changed, 5 insertions, 88 deletions

diff --git a/src/runtime/internal/atomic/arch1_386.go b/src/runtime/internal/atomic/arch1_386.go
deleted file mode 100644
index 76a9e2ecc4..0000000000
--- a/src/runtime/internal/atomic/arch1_386.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2011 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 atomic
-
-const (
-	_CacheLineSize = 64
-)
diff --git a/src/runtime/internal/atomic/arch1_amd64.go b/src/runtime/internal/atomic/arch1_amd64.go
deleted file mode 100644
index 76a9e2ecc4..0000000000
--- a/src/runtime/internal/atomic/arch1_amd64.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2011 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 atomic
-
-const (
-	_CacheLineSize = 64
-)
diff --git a/src/runtime/internal/atomic/arch1_amd64p32.go b/src/runtime/internal/atomic/arch1_amd64p32.go
deleted file mode 100644
index 7bb6e1aaf9..0000000000
--- a/src/runtime/internal/atomic/arch1_amd64p32.go
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2011 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 atomic
-
-const (
-	thechar        = '6'
-	_BigEndian     = 0
-	_CacheLineSize = 64
-	_PCQuantum     = 1
-	_Int64Align    = 8
-	hugePageSize   = 1 << 21
-)
diff --git a/src/runtime/internal/atomic/arch1_arm.go b/src/runtime/internal/atomic/arch1_arm.go
deleted file mode 100644
index d9b997c5ca..0000000000
--- a/src/runtime/internal/atomic/arch1_arm.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2011 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 atomic
-
-const (
-	_CacheLineSize = 32
-)
diff --git a/src/runtime/internal/atomic/arch1_arm64.go b/src/runtime/internal/atomic/arch1_arm64.go
deleted file mode 100644
index d9b997c5ca..0000000000
--- a/src/runtime/internal/atomic/arch1_arm64.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2011 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 atomic
-
-const (
-	_CacheLineSize = 32
-)
diff --git a/src/runtime/internal/atomic/arch1_mips64.go b/src/runtime/internal/atomic/arch1_mips64.go
deleted file mode 100644
index 0fd9510bdc..0000000000
--- a/src/runtime/internal/atomic/arch1_mips64.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2015 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 atomic
-
-const (
-	_CacheLineSize = 32
-)
diff --git a/src/runtime/internal/atomic/arch1_mips64le.go b/src/runtime/internal/atomic/arch1_mips64le.go
deleted file mode 100644
index 0fd9510bdc..0000000000
--- a/src/runtime/internal/atomic/arch1_mips64le.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2015 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 atomic
-
-const (
-	_CacheLineSize = 32
-)
diff --git a/src/runtime/internal/atomic/arch1_ppc64.go b/src/runtime/internal/atomic/arch1_ppc64.go
deleted file mode 100644
index 815a5840f7..0000000000
--- a/src/runtime/internal/atomic/arch1_ppc64.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2014 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 atomic
-
-const (
-	_CacheLineSize = 64
-)
diff --git a/src/runtime/internal/atomic/arch1_ppc64le.go b/src/runtime/internal/atomic/arch1_ppc64le.go
deleted file mode 100644
index 815a5840f7..0000000000
--- a/src/runtime/internal/atomic/arch1_ppc64le.go
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2014 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 atomic
-
-const (
-	_CacheLineSize = 64
-)
diff --git a/src/runtime/internal/atomic/atomic_arm.go b/src/runtime/internal/atomic/atomic_arm.go
index 1f33eef3c4..c361aef382 100644
--- a/src/runtime/internal/atomic/atomic_arm.go
+++ b/src/runtime/internal/atomic/atomic_arm.go
@@ -6,7 +6,10 @@
 
 package atomic
 
-import "unsafe"
+import (
+	"runtime/internal/sys"
+	"unsafe"
+)
 
 type spinlock struct {
 	v uint32
@@ -28,7 +31,7 @@ func (l *spinlock) unlock() {
 
 var locktab [57]struct {
 	l   spinlock
-	pad [_CacheLineSize - unsafe.Sizeof(spinlock{})]byte
+	pad [sys.CacheLineSize - unsafe.Sizeof(spinlock{})]byte
 }
 
 func addrLock(addr *uint64) *spinlock {