Messages in this thread Patch in this message | | | Subject | [RFC][PATCH 5/12] generic timeofday i386 arch specific changes, part 1 | From | john stultz <> | Date | Thu, 13 Oct 2005 19:14:00 -0700 |
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All, The conversion of i386 to use the generic timeofday subsystem has been split into 6 parts. This patch, the first of six, is just a simple cleanup for the i386 arch in preperation of moving the the generic timeofday infrastructure. It simply moves some code from timer_pit.c to i8259.c.
It applies on top of my timeofday-core patch. This patch is part the timeofday-arch-i386 patchset, so without the following parts it is not expected to compile (although just this one should).
thanks -john
i8259.c | 40 ++++++++++++++++++++++++++++++++++++++++ time.c | 1 - timers/timer_pit.c | 13 ------------- 3 files changed, 40 insertions(+), 14 deletions(-)
linux-2.6.14-rc4_timeofday-arch-i386-part1_B7.patch ============================================ diff --git a/arch/i386/kernel/i8259.c b/arch/i386/kernel/i8259.c --- a/arch/i386/kernel/i8259.c +++ b/arch/i386/kernel/i8259.c @@ -23,6 +23,7 @@ #include <asm/apic.h> #include <asm/arch_hooks.h> #include <asm/i8259.h> +#include <asm/i8253.h> #include <io_ports.h> @@ -396,6 +397,45 @@ void __init init_ISA_irqs (void) } } +void setup_pit_timer(void) +{ + unsigned long flags; + + spin_lock_irqsave(&i8253_lock, flags); + outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */ + udelay(10); + outb_p(LATCH & 0xff , PIT_CH0); /* LSB */ + udelay(10); + outb(LATCH >> 8 , PIT_CH0); /* MSB */ + spin_unlock_irqrestore(&i8253_lock, flags); +} + +static int timer_resume(struct sys_device *dev) +{ + setup_pit_timer(); + return 0; +} + +static struct sysdev_class timer_sysclass = { + set_kset_name("timer_pit"), + .resume = timer_resume, +}; + +static struct sys_device device_timer = { + .id = 0, + .cls = &timer_sysclass, +}; + +static int __init init_timer_sysfs(void) +{ + int error = sysdev_class_register(&timer_sysclass); + if (!error) + error = sysdev_register(&device_timer); + return error; +} + +device_initcall(init_timer_sysfs); + void __init init_IRQ(void) { int i; diff --git a/arch/i386/kernel/time.c b/arch/i386/kernel/time.c --- a/arch/i386/kernel/time.c +++ b/arch/i386/kernel/time.c @@ -404,7 +404,6 @@ static int timer_resume(struct sys_devic if (is_hpet_enabled()) hpet_reenable(); #endif - setup_pit_timer(); sec = get_cmos_time() + clock_cmos_diff; sleep_length = (get_cmos_time() - sleep_start) * HZ; write_seqlock_irqsave(&xtime_lock, flags); diff --git a/arch/i386/kernel/timers/timer_pit.c b/arch/i386/kernel/timers/timer_pit.c --- a/arch/i386/kernel/timers/timer_pit.c +++ b/arch/i386/kernel/timers/timer_pit.c @@ -161,16 +161,3 @@ struct init_timer_opts __initdata timer_ .init = init_pit, .opts = &timer_pit, }; - -void setup_pit_timer(void) -{ - unsigned long flags; - - spin_lock_irqsave(&i8253_lock, flags); - outb_p(0x34,PIT_MODE); /* binary, mode 2, LSB/MSB, ch 0 */ - udelay(10); - outb_p(LATCH & 0xff , PIT_CH0); /* LSB */ - udelay(10); - outb(LATCH >> 8 , PIT_CH0); /* MSB */ - spin_unlock_irqrestore(&i8253_lock, flags); -}
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