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Diffstat (limited to 'libc/sysdeps/linux/mips/bits/atomicity.h')
-rw-r--r--libc/sysdeps/linux/mips/bits/atomicity.h98
1 files changed, 0 insertions, 98 deletions
diff --git a/libc/sysdeps/linux/mips/bits/atomicity.h b/libc/sysdeps/linux/mips/bits/atomicity.h
deleted file mode 100644
index 5d1020352..000000000
--- a/libc/sysdeps/linux/mips/bits/atomicity.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/* Low-level functions for atomic operations. Mips version.
- Copyright (C) 2001, 2002 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-#ifndef _MIPS_ATOMICITY_H
-#define _MIPS_ATOMICITY_H 1
-
-#include <inttypes.h>
-
-static inline int
-__attribute_used__
-exchange_and_add (volatile uint32_t *mem, int val)
-{
- int result, tmp;
-
- __asm__ __volatile__
- ("/* Inline exchange & add */\n"
- "1:\n\t"
- ".set push\n\t"
- ".set mips2\n\t"
- "ll %0,%3\n\t"
- "addu %1,%4,%0\n\t"
- "sc %1,%2\n\t"
- ".set pop\n\t"
- "beqz %1,1b\n\t"
- "/* End exchange & add */"
- : "=&r"(result), "=&r"(tmp), "=m"(*mem)
- : "m" (*mem), "r"(val)
- : "memory");
-
- return result;
-}
-
-static inline void
-__attribute_used__
-atomic_add (volatile uint32_t *mem, int val)
-{
- int result;
-
- __asm__ __volatile__
- ("/* Inline atomic add */\n"
- "1:\n\t"
- ".set push\n\t"
- ".set mips2\n\t"
- "ll %0,%2\n\t"
- "addu %0,%3,%0\n\t"
- "sc %0,%1\n\t"
- ".set pop\n\t"
- "beqz %0,1b\n\t"
- "/* End atomic add */"
- : "=&r"(result), "=m"(*mem)
- : "m" (*mem), "r"(val)
- : "memory");
-}
-
-static inline int
-__attribute_used__
-compare_and_swap (volatile long int *p, long int oldval, long int newval)
-{
- long int ret, temp;
-
- __asm__ __volatile__
- ("/* Inline compare & swap */\n"
- "1:\n\t"
- ".set push\n\t"
- ".set mips2\n\t"
- "ll %1,%5\n\t"
- "move %0,$0\n\t"
- "bne %1,%3,2f\n\t"
- "move %0,%4\n\t"
- "sc %0,%2\n\t"
- ".set pop\n\t"
- "beqz %0,1b\n"
- "2:\n\t"
- "/* End compare & swap */"
- : "=&r" (ret), "=&r" (temp), "=m" (*p)
- : "r" (oldval), "r" (newval), "m" (*p)
- : "memory");
-
- return ret;
-}
-
-#endif /* atomicity.h */