[PATCH v3 11/19] powerpc: handle irq_enter/irq_exit in interrupt handler wrappers

[Nicholas Piggin]

Move irq_enter/irq_exit into asynchronous interrupt handler wrappers.

Signed-off-by: Nicholas Piggin <npig...@gmail.com>
---
 arch/powerpc/include/asm/interrupt.h | 2 ++
 arch/powerpc/kernel/dbell.c          | 3 +--
 arch/powerpc/kernel/irq.c            | 4 ----
 arch/powerpc/kernel/tau_6xx.c        | 3 ---
 arch/powerpc/kernel/time.c           | 4 ++--
 arch/powerpc/kernel/traps.c          | 6 ------
 6 files changed, 5 insertions(+), 17 deletions(-)

diff --git a/arch/powerpc/include/asm/interrupt.h 
b/arch/powerpc/include/asm/interrupt.h
index 8f7db1c8cbe0..21acf0d0154f 100644
--- a/arch/powerpc/include/asm/interrupt.h
+++ b/arch/powerpc/include/asm/interrupt.h
@@ -43,10 +43,12 @@ static inline void interrupt_exit_prepare(struct pt_regs 
*regs, struct interrupt
 static inline void interrupt_async_enter_prepare(struct pt_regs *regs, struct 
interrupt_state *state)
 {
        interrupt_enter_prepare(regs, state);
+       irq_enter();
 }
 
 static inline void interrupt_async_exit_prepare(struct pt_regs *regs, struct 
interrupt_state *state)
 {
+       irq_exit();
        interrupt_exit_prepare(regs, state);
 }
 
diff --git a/arch/powerpc/kernel/dbell.c b/arch/powerpc/kernel/dbell.c
index c0f99f8ffa7d..84ee9c511459 100644
--- a/arch/powerpc/kernel/dbell.c
+++ b/arch/powerpc/kernel/dbell.c
@@ -22,7 +22,6 @@ DEFINE_INTERRUPT_HANDLER_ASYNC(doorbell_exception)
 #ifdef CONFIG_SMP
        struct pt_regs *old_regs = set_irq_regs(regs);
 
-       irq_enter();
        trace_doorbell_entry(regs);
 
        ppc_msgsync();
@@ -35,7 +34,7 @@ DEFINE_INTERRUPT_HANDLER_ASYNC(doorbell_exception)
        smp_ipi_demux_relaxed(); /* already performed the barrier */
 
        trace_doorbell_exit(regs);
-       irq_exit();
+
        set_irq_regs(old_regs);
 #else /* CONFIG_SMP */
        printk(KERN_WARNING "Received doorbell on non-smp system\n");
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 2055d204d08e..681abb7c0507 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -641,8 +641,6 @@ void __do_irq(struct pt_regs *regs)
 {
        unsigned int irq;
 
-       irq_enter();
-
        trace_irq_entry(regs);
 
        /*
@@ -662,8 +660,6 @@ void __do_irq(struct pt_regs *regs)
                generic_handle_irq(irq);
 
        trace_irq_exit(regs);
-
-       irq_exit();
 }
 
 DEFINE_INTERRUPT_HANDLER_ASYNC(do_IRQ)
diff --git a/arch/powerpc/kernel/tau_6xx.c b/arch/powerpc/kernel/tau_6xx.c
index 46b2e5de4ef5..d864f07bab74 100644
--- a/arch/powerpc/kernel/tau_6xx.c
+++ b/arch/powerpc/kernel/tau_6xx.c
@@ -104,12 +104,9 @@ DEFINE_INTERRUPT_HANDLER_ASYNC(TAUException)
 {
        int cpu = smp_processor_id();
 
-       irq_enter();
        tau[cpu].interrupts++;
 
        TAUupdate(cpu);
-
-       irq_exit();
 }
 #endif /* CONFIG_TAU_INT */
 
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 0089df57bb49..7dd0ab55e700 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -585,7 +585,7 @@ DEFINE_INTERRUPT_HANDLER_ASYNC(timer_interrupt)
 #endif
 
        old_regs = set_irq_regs(regs);
-       irq_enter();
+
        trace_timer_interrupt_entry(regs);
 
        if (test_irq_work_pending()) {
@@ -610,7 +610,7 @@ DEFINE_INTERRUPT_HANDLER_ASYNC(timer_interrupt)
        }
 
        trace_timer_interrupt_exit(regs);
-       irq_exit();
+
        set_irq_regs(old_regs);
 }
 EXPORT_SYMBOL(timer_interrupt);
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f40b45086b93..06b638a7f0b0 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1082,7 +1082,6 @@ DEFINE_INTERRUPT_HANDLER_ASYNC(handle_hmi_exception)
        struct pt_regs *old_regs;
 
        old_regs = set_irq_regs(regs);
-       irq_enter();
 
 #ifdef CONFIG_VSX
        /* Real mode flagged P9 special emu is needed */
@@ -1102,7 +1101,6 @@ DEFINE_INTERRUPT_HANDLER_ASYNC(handle_hmi_exception)
        if (ppc_md.handle_hmi_exception)
                ppc_md.handle_hmi_exception(regs);
 
-       irq_exit();
        set_irq_regs(old_regs);
 }
 
@@ -1918,13 +1916,9 @@ 
DEFINE_INTERRUPT_HANDLER_NMI(performance_monitor_exception_nmi)
 
 DEFINE_INTERRUPT_HANDLER_ASYNC(performance_monitor_exception_async)
 {
-       irq_enter();
-
        __this_cpu_inc(irq_stat.pmu_irqs);
 
        perf_irq(regs);
-
-       irq_exit();
 }
 
 DEFINE_INTERRUPT_HANDLER_RAW(performance_monitor_exception)
-- 
2.23.0