arch/sparc/include/asm/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  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #ifndef __SPARC_ASMMACRO_H__
  10 #define __SPARC_ASMMACRO_H__
  11
  12 #include <config.h>
  13
  14 /* All trap entry points _must_ begin with this macro or else you
  15  * lose.  It makes sure the kernel has a proper window so that
  16  * c-code can be called.
  17  */
  18 #define SAVE_ALL_HEAD \
  19         sethi   %hi(trap_setup+(CONFIG_SYS_RELOC_MONITOR_BASE-CONFIG_SYS_TEXT_BASE)), %l4; \
  20         jmpl    %l4 + %lo(trap_setup+(CONFIG_SYS_RELOC_MONITOR_BASE-CONFIG_SYS_TEXT_BASE)), %l6;
  21 #define SAVE_ALL \
  22         SAVE_ALL_HEAD \
  23         nop;
  24
  25 /* All traps low-level code here must end with this macro. */
  26 #define RESTORE_ALL b ret_trap_entry; clr %l6;
  27
  28 #endif