diff options
Diffstat (limited to 'arch/powerpc/kernel/entry_64.S')
-rw-r--r-- | arch/powerpc/kernel/entry_64.S | 42 |
1 files changed, 1 insertions, 41 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 866462cbe2d8..0c3764ba8d49 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -127,17 +127,6 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR) stb r10,PACASOFTIRQEN(r13) stb r10,PACAHARDIRQEN(r13) std r10,SOFTE(r1) -#ifdef CONFIG_PPC_ISERIES -BEGIN_FW_FTR_SECTION - /* Hack for handling interrupts when soft-enabling on iSeries */ - cmpdi cr1,r0,0x5555 /* syscall 0x5555 */ - andi. r10,r12,MSR_PR /* from kernel */ - crand 4*cr0+eq,4*cr1+eq,4*cr0+eq - bne 2f - b hardware_interrupt_entry -2: -END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES) -#endif /* CONFIG_PPC_ISERIES */ /* Hard enable interrupts */ #ifdef CONFIG_PPC_BOOK3E @@ -591,15 +580,10 @@ _GLOBAL(ret_from_except_lite) ld r4,TI_FLAGS(r9) andi. r0,r4,_TIF_USER_WORK_MASK bne do_work -#endif +#endif /* !CONFIG_PREEMPT */ restore: -BEGIN_FW_FTR_SECTION ld r5,SOFTE(r1) -FW_FTR_SECTION_ELSE - b .Liseries_check_pending_irqs -ALT_FW_FTR_SECTION_END_IFCLR(FW_FEATURE_ISERIES) -2: TRACE_AND_RESTORE_IRQ(r5); /* extract EE bit and use it to restore paca->hard_enabled */ @@ -669,30 +653,6 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_STCX_CHECKS_ADDRESS) #endif /* CONFIG_PPC_BOOK3E */ -.Liseries_check_pending_irqs: -#ifdef CONFIG_PPC_ISERIES - ld r5,SOFTE(r1) - cmpdi 0,r5,0 - beq 2b - /* Check for pending interrupts (iSeries) */ - ld r3,PACALPPACAPTR(r13) - ld r3,LPPACAANYINT(r3) - cmpdi r3,0 - beq+ 2b /* skip do_IRQ if no interrupts */ - - li r3,0 - stb r3,PACASOFTIRQEN(r13) /* ensure we are soft-disabled */ -#ifdef CONFIG_TRACE_IRQFLAGS - bl .trace_hardirqs_off - mfmsr r10 -#endif - ori r10,r10,MSR_EE - mtmsrd r10 /* hard-enable again */ - addi r3,r1,STACK_FRAME_OVERHEAD - bl .do_IRQ - b .ret_from_except_lite /* loop back and handle more */ -#endif - do_work: #ifdef CONFIG_PREEMPT andi. r0,r3,MSR_PR /* Returning to user mode? */ |