summaryrefslogtreecommitdiffstats
path: root/arch/mips/kernel/i8253.c
AgeCommit message (Collapse)Author
2010-03-02i8253: Convert i8253_lock to raw_spinlockThomas Gleixner
i8253_lock needs to be a real spinlock in preempt-rt, i.e. it can not be converted to a sleeping lock. Convert it to raw_spinlock and fix up all users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Takashi Iwai <tiwai@suse.de> Cc: Jens Axboe <jens.axboe@oracle.com> LKML-Reference: <20100217163751.030764372@linutronix.de>
2009-11-02MIPS: Add IRQF_TIMER flag for timer interruptsWu Zhangjin
Along the lines of d6c585a4342a2ff627a29f9aea77c5ed4cd76023, add IRQF_TIMER flag for all timer interrupts This ensures that timer interrupts won't be disabled on suspend and not threaded for PREEMPT_RT. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-06-24MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.Ralf Baechle
Some of the were relying into smp.h being dragged in by another header which of course is fragile. <asm/cpu-info.h> uses smp_processor_id() only in macros and including smp.h there leads to an include loop, so don't change cpu-info.h. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-04-21clocksource: pass clocksource to read() callbackMagnus Damm
Pass clocksource pointer to the read() callback for clocksources. This allows us to share the callback between multiple instances. [hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods] [akpm@linux-foundation.org: cleanup] Signed-off-by: Magnus Damm <damm@igel.co.jp> Acked-by: John Stultz <johnstul@us.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-30cpumask: remove references to struct irqaction's mask field.Rusty Russell
Impact: cleanup It's unused, since about 1995. So remove all initialization of it in preparation for actually removing the field. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Thomas Gleixner <tglx@linutronix.de>
2008-12-13cpumask: convert struct clock_event_device to cpumask pointers.Rusty Russell
Impact: change calling convention of existing clock_event APIs struct clock_event_timer's cpumask field gets changed to take pointer, as does the ->broadcast function. Another single-patch change. For safety, we BUG_ON() in clockevents_register_device() if it's not set. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Ingo Molnar <mingo@elte.hu>
2008-07-15[MIPS] i8253: make the pit_clockevent variable staticDmitri Vorobiev
The pit_clockevent symbol is needlessly defined global. This patch makes that variable static. Spotted by sparse. Compile-tested using Malta defconfig. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-04-01[MIPS] I8253: Export i2853_lock to modules.Ralf Baechle
This fixes: ERROR: "i8253_lock" [drivers/input/misc/pcspkr.ko] undefined! Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-01-30mips, x86: optimize the i8259 code a bitRalf Baechle
The timer code always calls the clock_event_device set_net_event and set_mode methods with interrupts disabled, so no need to use spin_lock_irqsave / spin_unlock_irqrestore for those. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by:Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-11-02Use i8253.c lock for PC speaker on MIPS, too.Ralf Baechle
The Jazz machines have to use the PIT timer for dyntick and highresolution kernels. This may break because currently just like i386 used to do MIPS uses two separate spinlocks in the actual PIT code and the PC speaker code. So switch to do it the same that x86 currently does PIT locking. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-02[MIPS] i8253: Cleanup.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] i8253 PIT clocksource and clockevent driversRalf Baechle
Derived from the i386 variant with a few x86 complexities chopped off. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-12[MIPS] Rename PC speaker codeRalf Baechle
While the PC speaker is wired up to the i8254 there is more to the i8254 than just the PC speaker so this code was getting in the way under its current name. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-14Input: pcspkr - separate device and driver registrationMichael Neuling
The current pcspkr code combines the device and driver registration. This patch splits these, putting the device registration in the arch specific code. PowerPC and MIPS only have the pcspkr present sometimes. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>