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Diffstat (limited to 'arch/mn10300/include/asm/rwlock.h')
-rw-r--r--arch/mn10300/include/asm/rwlock.h125
1 files changed, 0 insertions, 125 deletions
diff --git a/arch/mn10300/include/asm/rwlock.h b/arch/mn10300/include/asm/rwlock.h
deleted file mode 100644
index 6d594d4a0e10..000000000000
--- a/arch/mn10300/include/asm/rwlock.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Helpers used by both rw spinlocks and rw semaphores.
- *
- * Based in part on code from semaphore.h and
- * spinlock.h Copyright 1996 Linus Torvalds.
- *
- * Copyright 1999 Red Hat, Inc.
- *
- * Written by Benjamin LaHaise.
- *
- * Modified by Matsushita Electric Industrial Co., Ltd.
- * Modifications:
- * 13-Nov-2006 MEI Temporarily delete lock functions for SMP support.
- *
- * 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.
- */
-#ifndef _ASM_RWLOCK_H
-#define _ASM_RWLOCK_H
-
-#define RW_LOCK_BIAS 0x01000000
-
-#ifndef CONFIG_SMP
-
-typedef struct { unsigned long a[100]; } __dummy_lock_t;
-#define __dummy_lock(lock) (*(__dummy_lock_t *)(lock))
-
-#define RW_LOCK_BIAS_STR "0x01000000"
-
-#define __build_read_lock_ptr(rw, helper) \
- do { \
- asm volatile( \
- " mov (%0),d3 \n" \
- " sub 1,d3 \n" \
- " mov d3,(%0) \n" \
- " blt 1f \n" \
- " bra 2f \n" \
- "1: jmp 3f \n" \
- "2: \n" \
- " .section .text.lock,\"ax\" \n" \
- "3: call "helper"[],0 \n" \
- " jmp 2b \n" \
- " .previous" \
- : \
- : "d" (rw) \
- : "memory", "d3", "cc"); \
- } while (0)
-
-#define __build_read_lock_const(rw, helper) \
- do { \
- asm volatile( \
- " mov (%0),d3 \n" \
- " sub 1,d3 \n" \
- " mov d3,(%0) \n" \
- " blt 1f \n" \
- " bra 2f \n" \
- "1: jmp 3f \n" \
- "2: \n" \
- " .section .text.lock,\"ax\" \n" \
- "3: call "helper"[],0 \n" \
- " jmp 2b \n" \
- " .previous" \
- : \
- : "d" (rw) \
- : "memory", "d3", "cc"); \
- } while (0)
-
-#define __build_read_lock(rw, helper) \
- do { \
- if (__builtin_constant_p(rw)) \
- __build_read_lock_const(rw, helper); \
- else \
- __build_read_lock_ptr(rw, helper); \
- } while (0)
-
-#define __build_write_lock_ptr(rw, helper) \
- do { \
- asm volatile( \
- " mov (%0),d3 \n" \
- " sub 1,d3 \n" \
- " mov d3,(%0) \n" \
- " blt 1f \n" \
- " bra 2f \n" \
- "1: jmp 3f \n" \
- "2: \n" \
- " .section .text.lock,\"ax\" \n" \
- "3: call "helper"[],0 \n" \
- " jmp 2b \n" \
- " .previous" \
- : \
- : "d" (rw) \
- : "memory", "d3", "cc"); \
- } while (0)
-
-#define __build_write_lock_const(rw, helper) \
- do { \
- asm volatile( \
- " mov (%0),d3 \n" \
- " sub 1,d3 \n" \
- " mov d3,(%0) \n" \
- " blt 1f \n" \
- " bra 2f \n" \
- "1: jmp 3f \n" \
- "2: \n" \
- " .section .text.lock,\"ax\" \n" \
- "3: call "helper"[],0 \n" \
- " jmp 2b \n" \
- " .previous" \
- : \
- : "d" (rw) \
- : "memory", "d3", "cc"); \
- } while (0)
-
-#define __build_write_lock(rw, helper) \
- do { \
- if (__builtin_constant_p(rw)) \
- __build_write_lock_const(rw, helper); \
- else \
- __build_write_lock_ptr(rw, helper); \
- } while (0)
-
-#endif /* CONFIG_SMP */
-#endif /* _ASM_RWLOCK_H */