diff options
| -rw-r--r-- | arch/s390/kernel/entry.S | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index a721c39d014d..21c1219122af 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -83,7 +83,7 @@ _PIF_WORK = (_PIF_PER_TRAP) #endif .endm - .macro SWITCH_ASYNC savearea,stack,shift,timer + .macro SWITCH_ASYNC savearea,timer tmhh %r8,0x0001 # interrupting from user ? jnz 1f lgr %r14,%r9 @@ -94,16 +94,16 @@ _PIF_WORK = (_PIF_PER_TRAP) brasl %r14,cleanup_critical tmhh %r8,0x0001 # retest problem state after cleanup jnz 1f -0: lg %r14,\stack # are we already on the target stack? +0: lg %r14,__LC_ASYNC_STACK # are we already on the async stack? slgr %r14,%r15 - srag %r14,%r14,\shift + srag %r14,%r14,STACK_SHIFT jnz 2f - CHECK_STACK 1<<\shift,\savearea + CHECK_STACK 1<<STACK_SHIFT,\savearea aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) j 3f 1: LAST_BREAK %r14 UPDATE_VTIME %r14,%r15,\timer -2: lg %r15,\stack # load target stack +2: lg %r15,__LC_ASYNC_STACK # load async stack 3: la %r11,STACK_FRAME_OVERHEAD(%r15) .endm @@ -539,8 +539,7 @@ ENTRY(io_int_handler) lg %r12,__LC_THREAD_INFO larl %r13,cleanup_critical lmg %r8,%r9,__LC_IO_OLD_PSW - SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT,\ - __LC_ASYNC_ENTER_TIMER + SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_ENTER_TIMER stmg %r0,%r7,__PT_R0(%r11) mvc __PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC stmg %r8,%r9,__PT_PSW(%r11) @@ -712,8 +711,7 @@ ENTRY(ext_int_handler) lg %r12,__LC_THREAD_INFO larl %r13,cleanup_critical lmg %r8,%r9,__LC_EXT_OLD_PSW - SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT,\ - __LC_ASYNC_ENTER_TIMER + SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_ENTER_TIMER stmg %r0,%r7,__PT_R0(%r11) mvc __PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC stmg %r8,%r9,__PT_PSW(%r11) @@ -892,8 +890,7 @@ ENTRY(mcck_int_handler) mvc __LC_MCCK_ENTER_TIMER(8),0(%r14) 3: tm __LC_MCCK_CODE+2,0x09 # mwp + ia of old psw valid? jno .Lmcck_panic # no -> skip cleanup critical - SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+64,__LC_PANIC_STACK,PAGE_SHIFT,\ - __LC_MCCK_ENTER_TIMER + SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+64,__LC_MCCK_ENTER_TIMER .Lmcck_skip: lghi %r14,__LC_GPREGS_SAVE_AREA+64 stmg %r0,%r7,__PT_R0(%r11) @@ -928,12 +925,8 @@ ENTRY(mcck_int_handler) lpswe __LC_RETURN_MCCK_PSW .Lmcck_panic: - lg %r14,__LC_PANIC_STACK - slgr %r14,%r15 - srag %r14,%r14,PAGE_SHIFT - jz 0f lg %r15,__LC_PANIC_STACK -0: aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) + aghi %r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE) j .Lmcck_skip # |