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Message-ID: <493DE3BE.9070202@ct.jp.nec.com>
Date: Mon, 08 Dec 2008 19:19:26 -0800
From: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
To: Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
"H. Peter Anvin" <hpa@...or.com>
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH] x86: hardirq: introduce inc_irq_stat()
From: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
Impact: cleanup
Introduce inc_irq_stat() macro and unify irq_stat accounting code.
Signed-off-by: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
---
arch/x86/include/asm/hardirq_32.h | 2 ++
arch/x86/include/asm/hardirq_64.h | 2 ++
arch/x86/kernel/apic.c | 13 +++----------
arch/x86/kernel/cpu/perf_counter.c | 6 +-----
arch/x86/kernel/smp.c | 18 +++---------------
arch/x86/kernel/traps.c | 6 +-----
6 files changed, 12 insertions(+), 35 deletions(-)
diff --git a/arch/x86/include/asm/hardirq_32.h b/arch/x86/include/asm/hardirq_32.h
index b3e475d..7a07897 100644
--- a/arch/x86/include/asm/hardirq_32.h
+++ b/arch/x86/include/asm/hardirq_32.h
@@ -23,6 +23,8 @@ DECLARE_PER_CPU(irq_cpustat_t, irq_stat);
#define __ARCH_IRQ_STAT
#define __IRQ_STAT(cpu, member) (per_cpu(irq_stat, cpu).member)
+#define inc_irq_stat(member) (__get_cpu_var(irq_stat).member++)
+
void ack_bad_irq(unsigned int irq);
#include <linux/irq_cpustat.h>
diff --git a/arch/x86/include/asm/hardirq_64.h b/arch/x86/include/asm/hardirq_64.h
index 1ba381f..b5a6b5d 100644
--- a/arch/x86/include/asm/hardirq_64.h
+++ b/arch/x86/include/asm/hardirq_64.h
@@ -11,6 +11,8 @@
#define __ARCH_IRQ_STAT 1
+#define inc_irq_stat(member) add_pda(member, 1)
+
#define local_softirq_pending() read_pda(__softirq_pending)
#define __ARCH_SET_SOFTIRQ_PENDING 1
diff --git a/arch/x86/kernel/apic.c b/arch/x86/kernel/apic.c
index 91c4257..a0f55df 100644
--- a/arch/x86/kernel/apic.c
+++ b/arch/x86/kernel/apic.c
@@ -778,11 +778,7 @@ static void local_apic_timer_interrupt(void)
/*
* the NMI deadlock-detector uses this.
*/
-#ifdef CONFIG_X86_64
- add_pda(apic_timer_irqs, 1);
-#else
- per_cpu(irq_stat, cpu).apic_timer_irqs++;
-#endif
+ inc_irq_stat(apic_timer_irqs);
evt->event_handler(evt);
}
@@ -1679,14 +1675,11 @@ void smp_spurious_interrupt(struct pt_regs *regs)
if (v & (1 << (SPURIOUS_APIC_VECTOR & 0x1f)))
ack_APIC_irq();
-#ifdef CONFIG_X86_64
- add_pda(irq_spurious_count, 1);
-#else
+ inc_irq_stat(irq_spurious_count);
+
/* see sw-dev-man vol 3, chapter 7.4.13.5 */
pr_info("spurious APIC interrupt on CPU#%d, "
"should never happen.\n", smp_processor_id());
- __get_cpu_var(irq_stat).irq_spurious_count++;
-#endif
irq_exit();
}
diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index 615e953..dc7e7a7 100644
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -449,11 +449,7 @@ out:
void smp_perf_counter_interrupt(struct pt_regs *regs)
{
irq_enter();
-#ifdef CONFIG_X86_64
- add_pda(apic_perf_irqs, 1);
-#else
- per_cpu(irq_stat, smp_processor_id()).apic_perf_irqs++;
-#endif
+ inc_irq_stat(apic_perf_irqs);
apic_write(APIC_LVTPC, LOCAL_PERF_VECTOR);
__smp_perf_counter_interrupt(regs, 0);
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c
index 3f92b13..7e558db 100644
--- a/arch/x86/kernel/smp.c
+++ b/arch/x86/kernel/smp.c
@@ -165,11 +165,7 @@ static void native_smp_send_stop(void)
void smp_reschedule_interrupt(struct pt_regs *regs)
{
ack_APIC_irq();
-#ifdef CONFIG_X86_32
- __get_cpu_var(irq_stat).irq_resched_count++;
-#else
- add_pda(irq_resched_count, 1);
-#endif
+ inc_irq_stat(irq_resched_count);
}
void smp_call_function_interrupt(struct pt_regs *regs)
@@ -177,11 +173,7 @@ void smp_call_function_interrupt(struct pt_regs *regs)
ack_APIC_irq();
irq_enter();
generic_smp_call_function_interrupt();
-#ifdef CONFIG_X86_32
- __get_cpu_var(irq_stat).irq_call_count++;
-#else
- add_pda(irq_call_count, 1);
-#endif
+ inc_irq_stat(irq_call_count);
irq_exit();
}
@@ -190,11 +182,7 @@ void smp_call_function_single_interrupt(struct pt_regs *regs)
ack_APIC_irq();
irq_enter();
generic_smp_call_function_single_interrupt();
-#ifdef CONFIG_X86_32
- __get_cpu_var(irq_stat).irq_call_count++;
-#else
- add_pda(irq_call_count, 1);
-#endif
+ inc_irq_stat(irq_call_count);
irq_exit();
}
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 47f6041..da81c6c 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -482,11 +482,7 @@ do_nmi(struct pt_regs *regs, long error_code)
{
nmi_enter();
-#ifdef CONFIG_X86_32
- { int cpu; cpu = smp_processor_id(); ++nmi_count(cpu); }
-#else
- add_pda(__nmi_count, 1);
-#endif
+ inc_irq_stat(__nmi_count);
if (!ignore_nmis)
default_do_nmi(regs);
--
1.6.0.4
--
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