diff options
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 54 |
1 files changed, 26 insertions, 28 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 07d849995da..0e2b16241df 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -742,15 +742,14 @@ __critical_end: .globl mcck_int_handler mcck_int_handler: - stck __LC_INT_CLOCK + stck __LC_MCCK_CLOCK spt __LC_CPU_TIMER_SAVE_AREA # revalidate cpu timer lm %r0,%r15,__LC_GPREGS_SAVE_AREA # revalidate gprs SAVE_ALL_BASE __LC_SAVE_AREA+32 la %r12,__LC_MCK_OLD_PSW tm __LC_MCCK_CODE,0x80 # system damage? bo BASED(mcck_int_main) # yes -> rest of mcck code invalid - mvc __LC_SAVE_AREA+52(8),__LC_ASYNC_ENTER_TIMER - mvc __LC_ASYNC_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA + mvc __LC_MCCK_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA tm __LC_MCCK_CODE+5,0x02 # stored cpu timer value valid? bo BASED(1f) la %r14,__LC_SYNC_ENTER_TIMER @@ -764,7 +763,7 @@ mcck_int_handler: bl BASED(0f) la %r14,__LC_LAST_UPDATE_TIMER 0: spt 0(%r14) - mvc __LC_ASYNC_ENTER_TIMER(8),0(%r14) + mvc __LC_MCCK_ENTER_TIMER(8),0(%r14) 1: tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid? bno BASED(mcck_int_main) # no -> skip cleanup critical tm __LC_MCK_OLD_PSW+1,0x01 # test problem state bit @@ -786,9 +785,9 @@ mcck_int_main: bno BASED(mcck_no_vtime) # no -> skip cleanup critical tm SP_PSW+1(%r15),0x01 # interrupting from user ? bz BASED(mcck_no_vtime) - UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER + UPDATE_VTIME __LC_EXIT_TIMER,__LC_MCCK_ENTER_TIMER,__LC_USER_TIMER UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER - mvc __LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER + mvc __LC_LAST_UPDATE_TIMER(8),__LC_MCCK_ENTER_TIMER mcck_no_vtime: l %r9,__LC_THREAD_INFO # load pointer to thread_info struct la %r2,SP_PTREGS(%r15) # load pt_regs @@ -811,7 +810,6 @@ mcck_no_vtime: mcck_return: mvc __LC_RETURN_MCCK_PSW(8),SP_PSW(%r15) # move return PSW ni __LC_RETURN_MCCK_PSW+1,0xfd # clear wait state bit - mvc __LC_ASYNC_ENTER_TIMER(8),__LC_SAVE_AREA+52 tm __LC_RETURN_MCCK_PSW+1,0x01 # returning to user ? bno BASED(0f) lm %r0,%r15,SP_R0(%r15) # load gprs 0-15 @@ -934,15 +932,16 @@ cleanup_critical: cleanup_system_call: mvc __LC_RETURN_PSW(8),0(%r12) - c %r12,BASED(.Lmck_old_psw) - be BASED(0f) - la %r12,__LC_SAVE_AREA+16 - b BASED(1f) -0: la %r12,__LC_SAVE_AREA+32 -1: clc __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+4) bh BASED(0f) + mvc __LC_SYNC_ENTER_TIMER(8),__LC_MCCK_ENTER_TIMER + c %r12,BASED(.Lmck_old_psw) + be BASED(0f) mvc __LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER +0: c %r12,BASED(.Lmck_old_psw) + la %r12,__LC_SAVE_AREA+32 + be BASED(0f) + la %r12,__LC_SAVE_AREA+16 0: clc __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+8) bhe BASED(cleanup_vtime) clc __LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn) @@ -984,16 +983,19 @@ cleanup_sysc_tif: cleanup_sysc_restore: clc 4(4,%r12),BASED(cleanup_sysc_restore_insn) be BASED(2f) + mvc __LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER + c %r12,BASED(.Lmck_old_psw) + be BASED(0f) mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER - clc 4(4,%r12),BASED(cleanup_sysc_restore_insn+4) +0: clc 4(4,%r12),BASED(cleanup_sysc_restore_insn+4) be BASED(2f) mvc __LC_RETURN_PSW(8),SP_PSW(%r15) c %r12,BASED(.Lmck_old_psw) - bne BASED(0f) - mvc __LC_SAVE_AREA+32(16),SP_R12(%r15) - b BASED(1f) -0: mvc __LC_SAVE_AREA+16(16),SP_R12(%r15) -1: lm %r0,%r11,SP_R0(%r15) + la %r12,__LC_SAVE_AREA+32 + be BASED(1f) + la %r12,__LC_SAVE_AREA+16 +1: mvc 0(16,%r12),SP_R12(%r15) + lm %r0,%r11,SP_R0(%r15) l %r15,SP_R15(%r15) 2: la %r12,__LC_RETURN_PSW br %r14 @@ -1009,19 +1011,15 @@ cleanup_io_tif: cleanup_io_restore: clc 4(4,%r12),BASED(cleanup_io_restore_insn) - be BASED(2f) - mvc __LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER + be BASED(1f) + mvc __LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER clc 4(4,%r12),BASED(cleanup_io_restore_insn+4) - be BASED(2f) + be BASED(1f) mvc __LC_RETURN_PSW(8),SP_PSW(%r15) - c %r12,BASED(.Lmck_old_psw) - bne BASED(0f) mvc __LC_SAVE_AREA+32(16),SP_R12(%r15) - b BASED(1f) -0: mvc __LC_SAVE_AREA+16(16),SP_R12(%r15) -1: lm %r0,%r11,SP_R0(%r15) + lm %r0,%r11,SP_R0(%r15) l %r15,SP_R15(%r15) -2: la %r12,__LC_RETURN_PSW +1: la %r12,__LC_RETURN_PSW br %r14 cleanup_io_restore_insn: .long io_done - 4 + 0x80000000 |