diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-12 23:04:06 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@inhelltoy.tec.linutronix.de> | 2007-10-12 23:04:06 +0200 |
| commit | d03030e917047cf7f475e641cd2d6e83647392b0 (patch) | |
| tree | 981933035017ec3a6fc083cac280dcc7839b2c60 /arch/x86/kernel | |
| parent | 500ff08b76878a45391fffc7a4c972883503050e (diff) | |
x86_64: Move apic calibration code around
Let the calibration code fill in calibration_result directly and
move the variable on top of the file.
Fixup a printk w/o log level while at it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/apic_64.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index a73b443a123..b08c08ed36a 100644 --- a/arch/x86/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c @@ -55,6 +55,8 @@ static struct resource lapic_resource = { .flags = IORESOURCE_MEM | IORESOURCE_BUSY, }; +static unsigned int calibration_result; + /* * cpu_mask that denotes the CPUs that needs timer interrupt coming in as * IPIs in place of local APIC timers @@ -821,7 +823,7 @@ static void setup_APIC_timer(unsigned int clocks) #define TICK_COUNT 100000000 -static int __init calibrate_APIC_clock(void) +static void __init calibrate_APIC_clock(void) { unsigned apic, apic_start; unsigned long tsc, tsc_start; @@ -855,17 +857,14 @@ static int __init calibrate_APIC_clock(void) result = (apic_start - apic) * 1000L * tsc_khz / (tsc - tsc_start); } - printk("result %d\n", result); - + printk(KERN_DEBUG "APIC timer calibration result %d\n", result); printk(KERN_INFO "Detected %d.%03d MHz APIC timer.\n", result / 1000 / 1000, result / 1000 % 1000); - return result * APIC_DIVISOR / HZ; + calibration_result = result * APIC_DIVISOR / HZ; } -static unsigned int calibration_result; - void __init setup_boot_APIC_clock (void) { if (disable_apic_timer) { @@ -878,7 +877,7 @@ void __init setup_boot_APIC_clock (void) local_irq_disable(); - calibration_result = calibrate_APIC_clock(); + calibrate_APIC_clock(); /* * Now set up the timer for real. */ @@ -985,8 +984,6 @@ void setup_APIC_extended_lvt(unsigned char lvt_off, unsigned char vector, apic_write(reg, v); } -#undef APIC_DIVISOR - /* * Local timer interrupt handler. It does both profiling and * process statistics/rescheduling. |