diff options
Diffstat (limited to 'arch/powerpc/kernel/exceptions-64e.S')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64e.S | 39 |
1 files changed, 1 insertions, 38 deletions
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S index 18be576fc0b3..3c222a97f023 100644 --- a/arch/powerpc/kernel/exceptions-64e.S +++ b/arch/powerpc/kernel/exceptions-64e.S @@ -409,28 +409,6 @@ exc_##n##_common: \ #define EXCEPTION_COMMON_DBG(n) \ EXCEPTION_COMMON_LVL(n, SPRN_SPRG_DBG_SCRATCH, PACA_EXDBG) -/* - * This is meant for exceptions that don't immediately hard-enable. We - * set a bit in paca->irq_happened to ensure that a subsequent call to - * arch_local_irq_restore() will properly hard-enable and avoid the - * fast-path, and then reconcile irq state. - */ -#define INTS_DISABLE RECONCILE_IRQ_STATE(r3,r4) - -/* - * This is called by exceptions that don't use INTS_DISABLE (that did not - * touch irq indicators in the PACA). This will restore MSR:EE to it's - * previous value - * - * XXX In the long run, we may want to open-code it in order to separate the - * load from the wrtee, thus limiting the latency caused by the dependency - * but at this point, I'll favor code clarity until we have a near to final - * implementation - */ -#define INTS_RESTORE_HARD \ - ld r11,_MSR(r1); \ - wrtee r11; - /* XXX FIXME: Restore r14/r15 when necessary */ #define BAD_STACK_TRAMPOLINE(n) \ exc_##n##_bad_stack: \ @@ -479,7 +457,6 @@ exc_##n##_bad_stack: \ START_EXCEPTION(label); \ NORMAL_EXCEPTION_PROLOG(trapnum, intnum, PROLOG_ADDITION_MASKABLE)\ EXCEPTION_COMMON(trapnum) \ - INTS_DISABLE; \ ack(r8); \ CHECK_NAPPING(); \ addi r3,r1,STACK_FRAME_OVERHEAD; \ @@ -559,7 +536,6 @@ __end_interrupts: mfspr r14,SPRN_DEAR mfspr r15,SPRN_ESR EXCEPTION_COMMON(0x300) - INTS_DISABLE b storage_fault_common /* Instruction Storage Interrupt */ @@ -569,7 +545,6 @@ __end_interrupts: li r15,0 mr r14,r10 EXCEPTION_COMMON(0x400) - INTS_DISABLE b storage_fault_common /* External Input Interrupt */ @@ -591,7 +566,6 @@ __end_interrupts: PROLOG_ADDITION_1REG) mfspr r14,SPRN_ESR EXCEPTION_COMMON(0x700) - INTS_DISABLE std r14,_DSISR(r1) addi r3,r1,STACK_FRAME_OVERHEAD ld r14,PACA_EXGEN+EX_R14(r13) @@ -610,8 +584,7 @@ __end_interrupts: beq- 1f bl load_up_fpu b fast_interrupt_return -1: INTS_DISABLE - addi r3,r1,STACK_FRAME_OVERHEAD +1: addi r3,r1,STACK_FRAME_OVERHEAD bl kernel_fp_unavailable_exception b interrupt_return @@ -631,7 +604,6 @@ BEGIN_FTR_SECTION 1: END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC) #endif - INTS_DISABLE addi r3,r1,STACK_FRAME_OVERHEAD bl altivec_unavailable_exception b interrupt_return @@ -642,7 +614,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC) BOOKE_INTERRUPT_ALTIVEC_ASSIST, PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x220) - INTS_DISABLE addi r3,r1,STACK_FRAME_OVERHEAD #ifdef CONFIG_ALTIVEC BEGIN_FTR_SECTION @@ -691,7 +662,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC) NORMAL_EXCEPTION_PROLOG(0xf20, BOOKE_INTERRUPT_AP_UNAVAIL, PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0xf20) - INTS_DISABLE addi r3,r1,STACK_FRAME_OVERHEAD bl unknown_exception b interrupt_return @@ -827,7 +797,6 @@ kernel_dbg_exc: */ mfspr r14,SPRN_DBSR EXCEPTION_COMMON_DBG(0xd08) - INTS_DISABLE std r14,_DSISR(r1) addi r3,r1,STACK_FRAME_OVERHEAD ld r14,PACA_EXDBG+EX_R14(r13) @@ -840,7 +809,6 @@ kernel_dbg_exc: NORMAL_EXCEPTION_PROLOG(0x260, BOOKE_INTERRUPT_PERFORMANCE_MONITOR, PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x260) - INTS_DISABLE CHECK_NAPPING() addi r3,r1,STACK_FRAME_OVERHEAD bl performance_monitor_exception @@ -870,7 +838,6 @@ kernel_dbg_exc: PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x2c0) addi r3,r1,STACK_FRAME_OVERHEAD - INTS_RESTORE_HARD bl unknown_exception b interrupt_return @@ -891,7 +858,6 @@ kernel_dbg_exc: PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x310) addi r3,r1,STACK_FRAME_OVERHEAD - INTS_RESTORE_HARD bl unknown_exception b interrupt_return @@ -901,7 +867,6 @@ kernel_dbg_exc: PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x320) addi r3,r1,STACK_FRAME_OVERHEAD - INTS_RESTORE_HARD bl unknown_exception b interrupt_return @@ -911,7 +876,6 @@ kernel_dbg_exc: PROLOG_ADDITION_NONE) EXCEPTION_COMMON(0x340) addi r3,r1,STACK_FRAME_OVERHEAD - INTS_RESTORE_HARD bl unknown_exception b interrupt_return @@ -991,7 +955,6 @@ alignment_more: addi r3,r1,STACK_FRAME_OVERHEAD ld r14,PACA_EXGEN+EX_R14(r13) ld r15,PACA_EXGEN+EX_R15(r13) - INTS_RESTORE_HARD bl alignment_exception REST_NVGPRS(r1) b interrupt_return |