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android_kernel_xiaomi_sm8350/arch/mips/include/asm/i8253.h

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[MIPS] i8253 PIT clocksource and clockevent drivers Derived from the i386 variant with a few x86 complexities chopped off. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11 18:46:10 -04:00
/*
* Machine specific IO port address definition for generic.
* Written by Osamu Tomita <tomita@cinet.co.jp>
*/
[MIPS] Fix include wrapper symbol to something sane. And why are there i8253.h and 8253pit.h ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-22 10:17:39 -04:00
#ifndef __ASM_I8253_H
#define __ASM_I8253_H
[MIPS] i8253 PIT clocksource and clockevent drivers Derived from the i386 variant with a few x86 complexities chopped off. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11 18:46:10 -04:00
Use i8253.c lock for PC speaker on MIPS, too. 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 13:26:06 -04:00
#include <linux/spinlock.h>
[MIPS] i8253 PIT clocksource and clockevent drivers Derived from the i386 variant with a few x86 complexities chopped off. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11 18:46:10 -04:00
/* i8253A PIT registers */
#define PIT_MODE 0x43
#define PIT_CH0 0x40
#define PIT_CH2 0x42
i8253: Convert i8253_lock to raw_spinlock 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>
2010-02-17 11:47:10 -05:00
extern raw_spinlock_t i8253_lock;
Use i8253.c lock for PC speaker on MIPS, too. 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 13:26:06 -04:00
[MIPS] i8253 PIT clocksource and clockevent drivers Derived from the i386 variant with a few x86 complexities chopped off. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11 18:46:10 -04:00
extern void setup_pit_timer(void);
[MIPS] Fix include wrapper symbol to something sane. And why are there i8253.h and 8253pit.h ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-22 10:17:39 -04:00
#endif /* __ASM_I8253_H */
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