This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / s390 / kernel / reset.S

diff --git a/arch/s390/kernel/reset.S b/arch/s390/kernel/reset.S
new file mode 100644 (file)
index 0000000..8a87355
--- /dev/null
+++ b/arch/s390/kernel/reset.S
@@ -0,0 +1,90 @@
+/*
+ *  arch/s390/kernel/reset.S
+ *
+ *    Copyright (C) IBM Corp. 2006
+ *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
+ *              Michael Holzheu <holzheu@de.ibm.com>
+ */
+
+#include <asm/ptrace.h>
+#include <asm/lowcore.h>
+
+#ifdef CONFIG_64BIT
+
+       .globl  reset_mcck_handler
+reset_mcck_handler:
+       basr    %r13,0
+0:     lg      %r15,__LC_PANIC_STACK   # load panic stack
+       aghi    %r15,-STACK_FRAME_OVERHEAD
+       lg      %r1,s390_reset_mcck_handler-0b(%r13)
+       ltgr    %r1,%r1
+       jz      1f
+       basr    %r14,%r1
+1:     la      %r1,4095
+       lmg     %r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)
+       lpswe   __LC_MCK_OLD_PSW
+
+       .globl  s390_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
+reset_mcck_handler:
+       basr    %r13,0
+0:     l       %r15,__LC_PANIC_STACK   # load panic stack
+       ahi     %r15,-STACK_FRAME_OVERHEAD
+       l       %r1,s390_reset_mcck_handler-0b(%r13)
+       ltr     %r1,%r1
+       jz      1f
+       basr    %r14,%r1
+1:     lm      %r0,%r15,__LC_GPREGS_SAVE_AREA
+       lpsw    __LC_MCK_OLD_PSW
+
+       .globl  s390_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 */