diff options
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 5a2f70cbd3a9..b9716a7e326d 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -624,12 +624,15 @@ ENTRY(mcck_int_handler) 4: j 4b ENDPROC(mcck_int_handler) -# -# PSW restart interrupt handler -# ENTRY(restart_int_handler) ALTERNATIVE "", ".insn s,0xb2800000,_LPP_OFFSET", 40 stg %r15,__LC_SAVE_AREA_RESTART + TSTMSK __LC_RESTART_FLAGS,RESTART_FLAG_CTLREGS,4 + jz 0f + la %r15,4095 + lctlg %c0,%c15,__LC_CREGS_SAVE_AREA-4095(%r15) +0: larl %r15,.Lstosm_tmp + stosm 0(%r15),0x04 # turn dat on, keep irqs off lg %r15,__LC_RESTART_STACK xc STACK_FRAME_OVERHEAD(__PT_SIZE,%r15),STACK_FRAME_OVERHEAD(%r15) stmg %r0,%r14,STACK_FRAME_OVERHEAD+__PT_R0(%r15) @@ -638,7 +641,7 @@ ENTRY(restart_int_handler) xc 0(STACK_FRAME_OVERHEAD,%r15),0(%r15) lg %r1,__LC_RESTART_FN # load fn, parm & source cpu lg %r2,__LC_RESTART_DATA - lg %r3,__LC_RESTART_SOURCE + lgf %r3,__LC_RESTART_SOURCE ltgr %r3,%r3 # test source cpu address jm 1f # negative -> skip source stop 0: sigp %r4,%r3,SIGP_SENSE # sigp sense to source cpu |