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Commit 4dbdc9a5 authored by Michal Simek's avatar Michal Simek
Browse files

microblaze_v8: headers for irq 



Reviewed-by: default avatarIngo Molnar <mingo@elte.hu>
Acked-by: default avatarJohn Linn <john.linn@xilinx.com>
Acked-by: default avatarStephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: default avatarJohn Williams <john.williams@petalogix.com>
Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent 69b1b781

arch/microblaze/include/asm/hardirq.h

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/*

 * Copyright (C) 2006 Atmark Techno, Inc.

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License. See the file "COPYING" in the main directory of this archive

 * for more details.

 */



#ifndef _ASM_MICROBLAZE_HARDIRQ_H

#define _ASM_MICROBLAZE_HARDIRQ_H



#include <linux/cache.h>

#include <linux/irq.h>

#include <asm/irq.h>

#include <asm/current.h>

#include <linux/ptrace.h>



/* should be defined in each interrupt controller driver */

extern unsigned int get_irq(struct pt_regs *regs);



typedef struct {

	unsigned int __softirq_pending;

} ____cacheline_aligned irq_cpustat_t;



void ack_bad_irq(unsigned int irq);



#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */



#endif /* _ASM_MICROBLAZE_HARDIRQ_H */

arch/microblaze/include/asm/hw_irq.h

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Empty file added.

arch/microblaze/include/asm/irq_regs.h

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#include <asm-generic/irq_regs.h>

arch/microblaze/include/asm/irqflags.h

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/*

 * Copyright (C) 2006 Atmark Techno, Inc.

 *

 * This file is subject to the terms and conditions of the GNU General Public

 * License. See the file "COPYING" in the main directory of this archive

 * for more details.

 */



#ifndef _ASM_MICROBLAZE_IRQFLAGS_H

#define _ASM_MICROBLAZE_IRQFLAGS_H



#include <linux/irqflags.h>



# if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR



# define local_irq_save(flags)				\

	do {						\

		asm volatile ("# local_irq_save	\n\t"	\

				"msrclr %0, %1	\n\t"	\

				"nop	\n\t"		\

				: "=r"(flags)		\

				: "i"(MSR_IE)		\

				: "memory");		\

	} while (0)



# define local_irq_disable()					\

	do {							\

		asm volatile ("# local_irq_disable \n\t"	\

				"msrclr r0, %0 \n\t"		\

				"nop	\n\t"			\

				:				\

				: "i"(MSR_IE)			\

				: "memory");			\

	} while (0)



# define local_irq_enable()					\

	do {							\

		asm volatile ("# local_irq_enable \n\t"		\

				"msrset	r0, %0 \n\t"		\

				"nop	\n\t"			\

				:				\

				: "i"(MSR_IE)			\

				: "memory");			\

	} while (0)



# else /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR == 0 */



# define local_irq_save(flags)					\

	do {							\

		register unsigned tmp;				\

		asm volatile ("# local_irq_save	\n\t"		\

				"mfs	%0, rmsr \n\t"		\

				"nop \n\t"			\

				"andi	%1, %0, %2 \n\t"	\

				"mts	rmsr, %1 \n\t"		\

				"nop \n\t"			\

				: "=r"(flags), "=r" (tmp)	\

				: "i"(~MSR_IE)			\

				: "memory");			\

	} while (0)



# define local_irq_disable()					\

	do {							\

		register unsigned tmp;				\

		asm volatile ("# local_irq_disable \n\t"	\

				"mfs	%0, rmsr \n\t"		\

				"nop \n\t"			\

				"andi	%0, %0, %1 \n\t"	\

				"mts	rmsr, %0 \n\t"		\

				"nop \n\t"			\

				: "=r"(tmp)			\

				: "i"(~MSR_IE)			\

				: "memory");			\

	} while (0)



# define local_irq_enable()					\

	do {							\

		register unsigned tmp;				\

		asm volatile ("# local_irq_enable \n\t"		\

				"mfs	%0, rmsr \n\t"		\

				"nop \n\t"			\

				"ori	%0, %0, %1 \n\t"	\

				"mts	rmsr, %0 \n\t"		\

				"nop \n\t"			\

				: "=r"(tmp)			\

				: "i"(MSR_IE)			\

				: "memory");			\

	} while (0)



# endif /* CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR */



#define local_save_flags(flags)					\

	do {							\

		asm volatile ("# local_save_flags \n\t"		\

				"mfs	%0, rmsr \n\t"		\

				"nop	\n\t"			\

				: "=r"(flags)			\

				:				\

				: "memory");			\

	} while (0)



#define local_irq_restore(flags)			\

	do {						\

		asm volatile ("# local_irq_restore \n\t"\

				"mts	rmsr, %0 \n\t"	\

				"nop	\n\t"		\

				:			\

				: "r"(flags)		\

				: "memory");		\

	} while (0)



static inline int irqs_disabled(void)

{

	unsigned long flags;



	local_save_flags(flags);

	return ((flags & MSR_IE) == 0);

}



#define raw_irqs_disabled irqs_disabled

#define raw_irqs_disabled_flags(flags)	((flags) == 0)



#endif /* _ASM_MICROBLAZE_IRQFLAGS_H */