1 files changed, 81 insertions, 0 deletions

diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
new file mode 100644
index 000000000000..a53f829a97c5
--- /dev/null
+++ b/arch/x86/include/asm/nmi.h
@@ -0,0 +1,81 @@
+#ifndef ASM_X86__NMI_H
+#define ASM_X86__NMI_H
+
+#include <linux/pm.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#ifdef ARCH_HAS_NMI_WATCHDOG
+
+/**
+ * do_nmi_callback
+ *
+ * Check to see if a callback exists and execute it.  Return 1
+ * if the handler exists and was handled successfully.
+ */
+int do_nmi_callback(struct pt_regs *regs, int cpu);
+
+extern void die_nmi(char *str, struct pt_regs *regs, int do_panic);
+extern int check_nmi_watchdog(void);
+extern int nmi_watchdog_enabled;
+extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
+extern int avail_to_resrv_perfctr_nmi(unsigned int);
+extern int reserve_perfctr_nmi(unsigned int);
+extern void release_perfctr_nmi(unsigned int);
+extern int reserve_evntsel_nmi(unsigned int);
+extern void release_evntsel_nmi(unsigned int);
+
+extern void setup_apic_nmi_watchdog(void *);
+extern void stop_apic_nmi_watchdog(void *);
+extern void disable_timer_nmi_watchdog(void);
+extern void enable_timer_nmi_watchdog(void);
+extern int nmi_watchdog_tick(struct pt_regs *regs, unsigned reason);
+extern void cpu_nmi_set_wd_enabled(void);
+
+extern atomic_t nmi_active;
+extern unsigned int nmi_watchdog;
+#define NMI_NONE        0
+#define NMI_IO_APIC     1
+#define NMI_LOCAL_APIC  2
+#define NMI_INVALID     3
+
+struct ctl_table;
+struct file;
+extern int proc_nmi_enabled(struct ctl_table *, int , struct file *,
+                        void __user *, size_t *, loff_t *);
+extern int unknown_nmi_panic;
+
+void __trigger_all_cpu_backtrace(void);
+#define trigger_all_cpu_backtrace() __trigger_all_cpu_backtrace()
+
+static inline void localise_nmi_watchdog(void)
+{
+        if (nmi_watchdog == NMI_IO_APIC)
+                nmi_watchdog = NMI_LOCAL_APIC;
+}
+
+/* check if nmi_watchdog is active (ie was specified at boot) */
+static inline int nmi_watchdog_active(void)
+{
+        /*
+         * actually it should be:
+         *      return (nmi_watchdog == NMI_LOCAL_APIC ||
+         *              nmi_watchdog == NMI_IO_APIC)
+         * but since they are power of two we could use a
+         * cheaper way --cvg
+         */
+        return nmi_watchdog & 0x3;
+}
+#endif
+
+void lapic_watchdog_stop(void);
+int lapic_watchdog_init(unsigned nmi_hz);
+int lapic_wd_event(unsigned nmi_hz);
+unsigned lapic_adjust_nmi_hz(unsigned hz);
+int lapic_watchdog_ok(void);
+void disable_lapic_nmi_watchdog(void);
+void enable_lapic_nmi_watchdog(void);
+void stop_nmi(void);
+void restart_nmi(void);
+
+#endif /* ASM_X86__NMI_H */