Messages in this thread Patch in this message | | | Subject | [PATCH 2/6] new timeofday i386 arch specific changes, part 1 for -mm (v.B3) | From | john stultz <> | Date | Fri, 17 Jun 2005 19:58:04 -0700 |
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Andrew, All, To hopefully improve the review-ability of my changes, I've split up my arch-i386 patch into four chunks. This patch is just a simple cleanup for the i386 arch in preparation of moving the the new timeofday infrastructure. It simply moves some code from timer_pit.c to i8259.c.
It applies on top of my timeofday-core_B3 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).
Andrew, please consider for inclusion for testing into your tree.
thanks -john
Signed-off-by: John Stultz <johnstul@us.ibm.com>
linux-2.6.12-rc6-mm1_timeofday-arch-i386-part1_B3.patch ======================================================= diff -ruN linux-2.6.12-rc6-mm1/arch/i386/kernel/i8259.c linux-2.6.12-rc6-mm1-tod/arch/i386/kernel/i8259.c --- linux-2.6.12-rc6-mm1/arch/i386/kernel/i8259.c 2005-06-17 15:56:27.000000000 -0700 +++ linux-2.6.12-rc6-mm1-tod/arch/i386/kernel/i8259.c 2005-06-17 18:28:05.576479704 -0700 @@ -400,6 +400,46 @@ } } +void setup_pit_timer(void) +{ + extern spinlock_t i8253_lock; + 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 -ruN linux-2.6.12-rc6-mm1/arch/i386/kernel/timers/timer_pit.c linux-2.6.12-rc6-mm1-tod/arch/i386/kernel/timers/timer_pit.c --- linux-2.6.12-rc6-mm1/arch/i386/kernel/timers/timer_pit.c 2005-06-17 15:56:27.000000000 -0700 +++ linux-2.6.12-rc6-mm1-tod/arch/i386/kernel/timers/timer_pit.c 2005-06-17 18:28:05.586478462 -0700 @@ -163,44 +163,3 @@ .init = init_pit, .opts = &timer_pit, }; - -void setup_pit_timer(void) -{ - extern spinlock_t i8253_lock; - 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); -
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