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[linux-2.6-omap-h63xx.git] / arch / s390 / kernel / reset.S
index be8688c0665c56bb19bcfaedd64e0cec7ea3d4ea..8a87355161fa53633e008ecdc175a9340311ed66 100644 (file)
@@ -3,6 +3,7 @@
  *
  *    Copyright (C) IBM Corp. 2006
  *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ *              Michael Holzheu <holzheu@de.ibm.com>
  */
 
 #include <asm/ptrace.h>
@@ -27,6 +28,26 @@ reset_mcck_handler:
 s390_reset_mcck_handler:
        .quad   0
 
+       .globl  reset_pgm_handler
+reset_pgm_handler:
+       stmg    %r0,%r15,__LC_SAVE_AREA
+       basr    %r13,0
+0:     lg      %r15,__LC_PANIC_STACK   # load panic stack
+       aghi    %r15,-STACK_FRAME_OVERHEAD
+       lg      %r1,s390_reset_pgm_handler-0b(%r13)
+       ltgr    %r1,%r1
+       jz      1f
+       basr    %r14,%r1
+       lmg     %r0,%r15,__LC_SAVE_AREA
+       lpswe   __LC_PGM_OLD_PSW
+1:     lpswe   disabled_wait_psw-0b(%r13)
+       .globl s390_reset_pgm_handler
+s390_reset_pgm_handler:
+       .quad   0
+       .align  8
+disabled_wait_psw:
+       .quad   0x0002000180000000,0x0000000000000000 + reset_pgm_handler
+
 #else /* CONFIG_64BIT */
 
        .globl  reset_mcck_handler
@@ -45,4 +66,25 @@ reset_mcck_handler:
 s390_reset_mcck_handler:
        .long   0
 
+       .globl  reset_pgm_handler
+reset_pgm_handler:
+       stm     %r0,%r15,__LC_SAVE_AREA
+       basr    %r13,0
+0:     l       %r15,__LC_PANIC_STACK   # load panic stack
+       ahi     %r15,-STACK_FRAME_OVERHEAD
+       l       %r1,s390_reset_pgm_handler-0b(%r13)
+       ltr     %r1,%r1
+       jz      1f
+       basr    %r14,%r1
+       lm      %r0,%r15,__LC_SAVE_AREA
+       lpsw    __LC_PGM_OLD_PSW
+
+1:     lpsw    disabled_wait_psw-0b(%r13)
+       .globl  s390_reset_pgm_handler
+s390_reset_pgm_handler:
+       .long   0
+disabled_wait_psw:
+       .align 8
+       .long   0x000a0000,0x00000000 + reset_pgm_handler
+
 #endif /* CONFIG_64BIT */