mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 00:55:26 +07:00
1425df87c2
- Rename m68k_handle_int() to generic_handle_irq(), and drop the unneeded
asmlinkage,
- Rename __m68k_handle_int() to do_IRQ().
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
#ifndef _M68K_IRQ_H_
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#define _M68K_IRQ_H_
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/*
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* This should be the same as the max(NUM_X_SOURCES) for all the
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* different m68k hosts compiled into the kernel.
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* Currently the Atari has 72 and the Amiga 24, but if both are
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* supported in the kernel it is better to make room for 72.
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*/
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#if defined(CONFIG_COLDFIRE)
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#define NR_IRQS 256
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#elif defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X)
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#define NR_IRQS 200
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#elif defined(CONFIG_ATARI) || defined(CONFIG_MAC)
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#define NR_IRQS 72
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#elif defined(CONFIG_Q40)
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#define NR_IRQS 43
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#elif defined(CONFIG_AMIGA) || !defined(CONFIG_MMU)
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#define NR_IRQS 32
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#elif defined(CONFIG_APOLLO)
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#define NR_IRQS 24
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#elif defined(CONFIG_HP300)
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#define NR_IRQS 8
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#else
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#define NR_IRQS 0
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#endif
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#ifdef CONFIG_MMU
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#include <linux/linkage.h>
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#include <linux/hardirq.h>
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#include <linux/irqreturn.h>
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#include <linux/spinlock_types.h>
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/*
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* Interrupt source definitions
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* General interrupt sources are the level 1-7.
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* Adding an interrupt service routine for one of these sources
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* results in the addition of that routine to a chain of routines.
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* Each one is called in succession. Each individual interrupt
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* service routine should determine if the device associated with
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* that routine requires service.
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*/
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#define IRQ_SPURIOUS 0
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#define IRQ_AUTO_1 1 /* level 1 interrupt */
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#define IRQ_AUTO_2 2 /* level 2 interrupt */
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#define IRQ_AUTO_3 3 /* level 3 interrupt */
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#define IRQ_AUTO_4 4 /* level 4 interrupt */
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#define IRQ_AUTO_5 5 /* level 5 interrupt */
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#define IRQ_AUTO_6 6 /* level 6 interrupt */
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#define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */
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#define IRQ_USER 8
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extern unsigned int irq_canonicalize(unsigned int irq);
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struct pt_regs;
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/*
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* various flags for request_irq() - the Amiga now uses the standard
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* mechanism like all other architectures - IRQF_DISABLED and
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* IRQF_SHARED are your friends.
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*/
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#ifndef MACH_AMIGA_ONLY
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#define IRQ_FLG_LOCK (0x0001) /* handler is not replaceable */
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#define IRQ_FLG_REPLACE (0x0002) /* replace existing handler */
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#define IRQ_FLG_FAST (0x0004)
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#define IRQ_FLG_SLOW (0x0008)
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#define IRQ_FLG_STD (0x8000) /* internally used */
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#endif
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/*
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* This structure is used to chain together the ISRs for a particular
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* interrupt source (if it supports chaining).
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*/
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struct irq_data {
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unsigned int irq;
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irqreturn_t (*handler)(int, void *);
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void *dev_id;
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struct irq_data *next;
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unsigned long flags;
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const char *devname;
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};
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/*
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* This structure has only 4 elements for speed reasons
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*/
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struct irq_handler {
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int (*handler)(int, void *);
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unsigned long flags;
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void *dev_id;
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const char *devname;
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};
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struct irq_chip {
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const char *name;
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unsigned int (*irq_startup)(struct irq_data *data);
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void (*irq_shutdown)(struct irq_data *data);
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void (*irq_enable)(struct irq_data *data);
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void (*irq_disable)(struct irq_data *data);
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};
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extern unsigned int m68k_irq_startup(struct irq_data *data);
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extern unsigned int m68k_irq_startup_irq(unsigned int irq);
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extern void m68k_irq_shutdown(struct irq_data *data);
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/*
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* This function returns a new struct irq_data
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*/
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extern struct irq_data *new_irq_node(void);
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extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_regs *));
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extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt,
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void (*handler)(unsigned int, struct pt_regs *));
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extern void m68k_setup_irq_chip(struct irq_chip *, unsigned int, unsigned int);
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#define m68k_setup_irq_controller(chip, dummy, irq, cnt) \
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m68k_setup_irq_chip((chip), (irq), (cnt))
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extern void generic_handle_irq(unsigned int);
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asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
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#else
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#define irq_canonicalize(irq) (irq)
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#endif /* CONFIG_MMU */
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asmlinkage void do_IRQ(int irq, struct pt_regs *regs);
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#endif /* _M68K_IRQ_H_ */
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