diff options
Diffstat (limited to 'arch/s390/kernel/base.S')
| -rw-r--r-- | arch/s390/kernel/base.S | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S index d255c69c1779..172c23c8ca00 100644 --- a/arch/s390/kernel/base.S +++ b/arch/s390/kernel/base.S @@ -3,8 +3,7 @@ * arch/s390/kernel/base.S * * Copyright IBM Corp. 2006, 2007 - * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com> - * Michael Holzheu <holzheu@de.ibm.com> + * Author(s): Michael Holzheu <holzheu@de.ibm.com> */ #include <linux/linkage.h> @@ -15,18 +14,28 @@ GEN_BR_THUNK %r9 GEN_BR_THUNK %r14 +__PT_R0 = __PT_GPRS +__PT_R8 = __PT_GPRS + 64 + ENTRY(s390_base_pgm_handler) - stmg %r0,%r15,__LC_SAVE_AREA_SYNC - basr %r13,0 -0: aghi %r15,-STACK_FRAME_OVERHEAD + stmg %r8,%r15,__LC_SAVE_AREA_SYNC + aghi %r15,-(STACK_FRAME_OVERHEAD+__PT_SIZE) + la %r11,STACK_FRAME_OVERHEAD(%r15) + xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) + stmg %r0,%r7,__PT_R0(%r11) + mvc __PT_PSW(16,%r11),__LC_PGM_OLD_PSW + mvc __PT_R8(64,%r11),__LC_SAVE_AREA_SYNC + lgr %r2,%r11 larl %r1,s390_base_pgm_handler_fn lg %r9,0(%r1) ltgr %r9,%r9 jz 1f BASR_EX %r14,%r9 - lmg %r0,%r15,__LC_SAVE_AREA_SYNC - lpswe __LC_PGM_OLD_PSW -1: lpswe disabled_wait_psw-0b(%r13) + mvc __LC_RETURN_PSW(16),STACK_FRAME_OVERHEAD+__PT_PSW(%r15) + lmg %r0,%r15,STACK_FRAME_OVERHEAD+__PT_R0(%r15) + lpswe __LC_RETURN_PSW +1: larl %r13,disabled_wait_psw + lpswe 0(%r13) ENDPROC(s390_base_pgm_handler) .align 8 |