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-rw-r--r--arch/frv/lib/atomic64-ops.S68
1 files changed, 0 insertions, 68 deletions
diff --git a/arch/frv/lib/atomic64-ops.S b/arch/frv/lib/atomic64-ops.S
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--- a/arch/frv/lib/atomic64-ops.S
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@@ -1,68 +0,0 @@
-/* kernel atomic64 operations
- *
- * For an explanation of how atomic ops work in this arch, see:
- * Documentation/frv/atomic-ops.txt
- *
- * Copyright (C) 2009 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <asm/spr-regs.h>
-
- .text
- .balign 4
-
-
-###############################################################################
-#
-# uint64_t __xchg_64(uint64_t i, uint64_t *v)
-#
-###############################################################################
- .globl __xchg_64
- .type __xchg_64,@function
-__xchg_64:
- or.p gr8,gr8,gr4
- or gr9,gr9,gr5
-0:
- orcc gr0,gr0,gr0,icc3 /* set ICC3.Z */
- ckeq icc3,cc7
- ldd.p @(gr10,gr0),gr8 /* LDD.P/ORCR must be atomic */
- orcr cc7,cc7,cc3 /* set CC3 to true */
- cstd.p gr4,@(gr10,gr0) ,cc3,#1
- corcc gr29,gr29,gr0 ,cc3,#1 /* clear ICC3.Z if store happens */
- beq icc3,#0,0b
- bralr
-
- .size __xchg_64, .-__xchg_64
-
-###############################################################################
-#
-# uint64_t __cmpxchg_64(uint64_t test, uint64_t new, uint64_t *v)
-#
-###############################################################################
- .globl __cmpxchg_64
- .type __cmpxchg_64,@function
-__cmpxchg_64:
- or.p gr8,gr8,gr4
- or gr9,gr9,gr5
-0:
- orcc gr0,gr0,gr0,icc3 /* set ICC3.Z */
- ckeq icc3,cc7
- ldd.p @(gr12,gr0),gr8 /* LDD.P/ORCR must be atomic */
- orcr cc7,cc7,cc3
- subcc gr8,gr4,gr0,icc0
- subcc.p gr9,gr5,gr0,icc1
- bnelr icc0,#0
- bnelr icc1,#0
- cstd.p gr10,@(gr12,gr0) ,cc3,#1
- corcc gr29,gr29,gr0 ,cc3,#1 /* clear ICC3.Z if store happens */
- beq icc3,#0,0b
- bralr
-
- .size __cmpxchg_64, .-__cmpxchg_64
-
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