diff options
Diffstat (limited to 'arch/x86/kernel/apic_64.c')
| -rw-r--r-- | arch/x86/kernel/apic_64.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index 47b8ef51dde0..d1a696673d9d 100644 --- a/arch/x86/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c @@ -23,33 +23,37 @@ #include <linux/mc146818rtc.h> #include <linux/kernel_stat.h> #include <linux/sysdev.h> -#include <linux/module.h> #include <linux/ioport.h> #include <linux/clockchips.h> #include <linux/acpi_pmtmr.h> +#include <linux/module.h> #include <asm/atomic.h> #include <asm/smp.h> #include <asm/mtrr.h> #include <asm/mpspec.h> +#include <asm/hpet.h> #include <asm/pgalloc.h> #include <asm/mach_apic.h> #include <asm/nmi.h> #include <asm/idle.h> #include <asm/proto.h> #include <asm/timex.h> -#include <asm/hpet.h> #include <asm/apic.h> -int apic_verbosity; int disable_apic_timer __cpuinitdata; static int apic_calibrate_pmtmr __initdata; int disable_apic; -/* Local APIC timer works in C2? */ +/* Local APIC timer works in C2 */ int local_apic_timer_c2_ok; EXPORT_SYMBOL_GPL(local_apic_timer_c2_ok); +/* + * Debug level, exported for io_apic.c + */ +int apic_verbosity; + static struct resource lapic_resource = { .name = "Local APIC", .flags = IORESOURCE_MEM | IORESOURCE_BUSY, @@ -355,6 +359,11 @@ static void __init calibrate_APIC_clock(void) calibration_result = result / HZ; } +/* + * Setup the boot APIC + * + * Calibrate and verify the result. + */ void __init setup_boot_APIC_clock(void) { /* @@ -1109,8 +1118,8 @@ static struct sysdev_class lapic_sysclass = { }; static struct sys_device device_lapic = { - .id = 0, - .cls = &lapic_sysclass, + .id = 0, + .cls = &lapic_sysclass, }; static void __cpuinit apic_pm_activate(void) @@ -1121,9 +1130,11 @@ static void __cpuinit apic_pm_activate(void) static int __init init_lapic_sysfs(void) { int error; + if (!cpu_has_apic) return 0; /* XXX: remove suspend/resume procs if !apic_pm_state.active? */ + error = sysdev_class_register(&lapic_sysclass); if (!error) error = sysdev_register(&device_lapic); |