include/asm-sparc/asmmacro.h

   1 /* Assembler macros for SPARC
   2  *
   3  * (C) Copyright 2007, taken from linux asm-sparc/asmmacro.h
   4  * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com.
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  *
  24  */
  25
  26 #ifndef __SPARC_ASMMACRO_H__
  27 #define __SPARC_ASMMACRO_H__
  28
  29 #include <config.h>
  30
  31 /* All trap entry points _must_ begin with this macro or else you
  32  * lose.  It makes sure the kernel has a proper window so that
  33  * c-code can be called.
  34  */
  35 #define SAVE_ALL_HEAD \
  36         sethi   %hi(trap_setup+(CONFIG_SYS_RELOC_MONITOR_BASE-TEXT_BASE)), %l4; \
  37         jmpl    %l4 + %lo(trap_setup+(CONFIG_SYS_RELOC_MONITOR_BASE-TEXT_BASE)), %l6;
  38 #define SAVE_ALL \
  39         SAVE_ALL_HEAD \
  40         nop;
  41
  42 /* All traps low-level code here must end with this macro. */
  43 #define RESTORE_ALL b ret_trap_entry; clr %l6;
  44
  45 #endif