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authorDon Zickus <dzickus@redhat.com>2010-02-12 17:19:19 -0500
committerIngo Molnar <mingo@elte.hu>2010-02-14 09:19:43 +0100
commit504d7cf10ee42bb76b9556859f23d4121dee0a77 (patch)
treeedaa43a7c221f0926d150dbbeb38abc5fe0f1cc6 /arch/x86/kernel/apic/hw_nmi.c
parentc3128fb6ad39b0edda6675d20585a64846cf89ea (diff)
downloadlinux-504d7cf10ee42bb76b9556859f23d4121dee0a77.tar.bz2
nmi_watchdog: Compile and portability fixes
The original patch was x86_64 centric. Changed the code to make it less so. ested by building and running on a powerpc. Signed-off-by: Don Zickus <dzickus@redhat.com> Cc: peterz@infradead.org Cc: gorcunov@gmail.com Cc: aris@redhat.com LKML-Reference: <1266013161-31197-2-git-send-email-dzickus@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/apic/hw_nmi.c')
-rw-r--r--arch/x86/kernel/apic/hw_nmi.c21
1 files changed, 16 insertions, 5 deletions
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index 8c0e6a410d05..312d772c5c35 100644
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -32,8 +32,13 @@ static DEFINE_PER_CPU(unsigned, last_irq_sum);
*/
static inline unsigned int get_timer_irqs(int cpu)
{
- return per_cpu(irq_stat, cpu).apic_timer_irqs +
- per_cpu(irq_stat, cpu).irq0_irqs;
+ unsigned int irqs = per_cpu(irq_stat, cpu).irq0_irqs;
+
+#if defined(CONFIG_X86_LOCAL_APIC)
+ irqs += per_cpu(irq_stat, cpu).apic_timer_irqs;
+#endif
+
+ return irqs;
}
static inline int mce_in_progress(void)
@@ -82,6 +87,11 @@ int hw_nmi_is_cpu_stuck(struct pt_regs *regs)
}
}
+u64 hw_nmi_get_sample_period(void)
+{
+ return cpu_khz * 1000;
+}
+
void arch_trigger_all_cpu_backtrace(void)
{
int i;
@@ -100,15 +110,16 @@ void arch_trigger_all_cpu_backtrace(void)
}
/* STUB calls to mimic old nmi_watchdog behaviour */
+#if defined(CONFIG_X86_LOCAL_APIC)
unsigned int nmi_watchdog = NMI_NONE;
EXPORT_SYMBOL(nmi_watchdog);
+void acpi_nmi_enable(void) { return; }
+void acpi_nmi_disable(void) { return; }
+#endif
atomic_t nmi_active = ATOMIC_INIT(0); /* oprofile uses this */
EXPORT_SYMBOL(nmi_active);
-int nmi_watchdog_enabled;
int unknown_nmi_panic;
void cpu_nmi_set_wd_enabled(void) { return; }
-void acpi_nmi_enable(void) { return; }
-void acpi_nmi_disable(void) { return; }
void stop_apic_nmi_watchdog(void *unused) { return; }
void setup_apic_nmi_watchdog(void *unused) { return; }
int __init check_nmi_watchdog(void) { return 0; }