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microblaze_v8: headers for irq

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Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michal Simek 2009-03-27 14:25:35 +01:00
parent 69b1b7817e
commit 4dbdc9a596
4 changed files with 153 additions and 0 deletions
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29
arch/microblaze/include/asm/hardirq.h Normal file
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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 */

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arch/microblaze/include/asm/hw_irq.h Normal file
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arch/microblaze/include/asm/irq_regs.h Normal file
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#include <asm-generic/irq_regs.h>

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arch/microblaze/include/asm/irqflags.h Normal file
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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 */