diff options
Diffstat (limited to 'include/asm-mips/mipsregs.h')
| -rw-r--r-- | include/asm-mips/mipsregs.h | 42 |
1 files changed, 3 insertions, 39 deletions
diff --git a/include/asm-mips/mipsregs.h b/include/asm-mips/mipsregs.h index f7a29a81f..11f8e68d5 100644 --- a/include/asm-mips/mipsregs.h +++ b/include/asm-mips/mipsregs.h @@ -1,10 +1,10 @@ -/* $Id: mipsregs.h,v 1.6 1999/07/26 19:42:43 harald Exp $ - * +/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * - * Copyright (C) 1994, 1995, 1996, 1997 by Ralf Baechle + * Copyright (C) 1994, 1995, 1996, 1997, 2000 by Ralf Baechle + * Copyright (C) 2000 Silicon Graphics, Inc. * Modified for further R[236]000 support by Paul M. Antoine, 1996. */ #ifndef __ASM_MIPS_MIPSREGS_H @@ -186,42 +186,6 @@ __BUILD_SET_CP0(config,CP0_CONFIG) #endif /* defined (_LANGUAGE_ASSEMBLY) */ /* - * Inline code for use of the ll and sc instructions - * - * FIXME: This instruction is only available on MIPS ISA >=2. - * Since these operations are only being used for atomic operations - * the easiest workaround for the R[23]00 is to disable interrupts. - * This fails for R3000 SMP machines which use that many different - * technologies as replacement that it is difficult to create even - * just a hook for for all machines to hook into. The only good - * thing is that there is currently no R3000 SMP machine on the - * Linux/MIPS target list ... - */ -#define load_linked(addr) \ -({ \ - unsigned int __res; \ - \ - __asm__ __volatile__( \ - "ll\t%0,(%1)" \ - : "=r" (__res) \ - : "r" ((unsigned long) (addr))); \ - \ - __res; \ -}) - -#define store_conditional(addr,value) \ -({ \ - int __res; \ - \ - __asm__ __volatile__( \ - "sc\t%0,(%2)" \ - : "=r" (__res) \ - : "0" (value), "r" (addr)); \ - \ - __res; \ -}) - -/* * Bitfields in the R4xx0 cp0 status register */ #define ST0_IE 0x00000001 |