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[/] [or1k_old/] [trunk/] [uclinux/] [uClinux-2.0.x/] [include/] [asm-alpha/] [irq.h] - Blame information for rev 1782

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Line No. Rev Author Line
1 199 simons
#ifndef _ALPHA_IRQ_H
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#define _ALPHA_IRQ_H
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/*
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 *      linux/include/alpha/irq.h
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 *
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 *      (C) 1994 Linus Torvalds
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 */
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#include <linux/linkage.h>
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#include <linux/config.h>
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#if   defined(CONFIG_ALPHA_CABRIOLET) || \
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      defined(CONFIG_ALPHA_EB66P)     || \
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      defined(CONFIG_ALPHA_EB164)     || \
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      defined(CONFIG_ALPHA_PC164)     || \
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      defined(CONFIG_ALPHA_LX164)
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# define NR_IRQS        35
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#elif defined(CONFIG_ALPHA_EB66)      || \
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      defined(CONFIG_ALPHA_EB64P)     || \
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      defined(CONFIG_ALPHA_MIKASA)
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# define NR_IRQS        32
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#elif defined(CONFIG_ALPHA_ALCOR)     || \
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      defined(CONFIG_ALPHA_XLT)       || \
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      defined(CONFIG_ALPHA_MIATA)     || \
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      defined(CONFIG_ALPHA_RUFFIAN)   || \
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      defined(CONFIG_ALPHA_NORITAKE)
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# define NR_IRQS        48
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#elif defined(CONFIG_ALPHA_SABLE)     || \
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      defined(CONFIG_ALPHA_SX164)
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# define NR_IRQS        40
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#elif defined(CONFIG_ALPHA_TAKARA)
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# define NR_IRQS        20
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#else /* everyone else */
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# define NR_IRQS        16
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#endif
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extern void disable_irq(unsigned int);
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extern void enable_irq(unsigned int);
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#define __STR(x) #x
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#define STR(x) __STR(x)
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#define SAVE_ALL "xx"
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/*
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 * SAVE_MOST/RESTORE_MOST is used for the faster version of IRQ handlers,
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 * installed by using the SA_INTERRUPT flag. These kinds of IRQ's don't
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 * call the routines that do signal handling etc on return, and can have
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 * more relaxed register-saving etc. They are also atomic, and are thus
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 * suited for small, fast interrupts like the serial lines or the harddisk
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 * drivers, which don't actually need signal handling etc.
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 *
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 * Also note that we actually save only those registers that are used in
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 * C subroutines, so if you do something weird, you're on your own.
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 */
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#define SAVE_MOST "yy"
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#define RESTORE_MOST "zz"
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#define ACK_FIRST(mask) "aa"
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#define ACK_SECOND(mask) "dummy"
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#define UNBLK_FIRST(mask) "dummy"
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#define UNBLK_SECOND(mask) "dummy"
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#define IRQ_NAME2(nr) nr##_interrupt(void)
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#define IRQ_NAME(nr) IRQ_NAME2(IRQ##nr)
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#define FAST_IRQ_NAME(nr) IRQ_NAME2(fast_IRQ##nr)
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#define BAD_IRQ_NAME(nr) IRQ_NAME2(bad_IRQ##nr)
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#define BUILD_IRQ(chip,nr,mask) \
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asmlinkage void IRQ_NAME(nr); \
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asmlinkage void FAST_IRQ_NAME(nr); \
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asmlinkage void BAD_IRQ_NAME(nr); \
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asm code comes here
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#endif

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