mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-22 09:22:37 +00:00
e9ed7e722e
Now that the last inlined instances are gone, all that is left to do is turning disable_irq_nosync on arm26 and m68k from defines to aliases and we are all set - we can make these externs in linux/interrupt.h uncoditional and kill remaining instances in asm/irq.h Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
#ifndef _M68K_IRQ_H_
|
|
#define _M68K_IRQ_H_
|
|
|
|
#include <linux/linkage.h>
|
|
#include <linux/hardirq.h>
|
|
#include <linux/spinlock_types.h>
|
|
|
|
/*
|
|
* This should be the same as the max(NUM_X_SOURCES) for all the
|
|
* different m68k hosts compiled into the kernel.
|
|
* Currently the Atari has 72 and the Amiga 24, but if both are
|
|
* supported in the kernel it is better to make room for 72.
|
|
*/
|
|
#if defined(CONFIG_VME) || defined(CONFIG_SUN3) || defined(CONFIG_SUN3X)
|
|
#define NR_IRQS 200
|
|
#elif defined(CONFIG_ATARI) || defined(CONFIG_MAC)
|
|
#define NR_IRQS 72
|
|
#elif defined(CONFIG_Q40)
|
|
#define NR_IRQS 43
|
|
#elif defined(CONFIG_AMIGA)
|
|
#define NR_IRQS 32
|
|
#elif defined(CONFIG_APOLLO)
|
|
#define NR_IRQS 24
|
|
#elif defined(CONFIG_HP300)
|
|
#define NR_IRQS 8
|
|
#else
|
|
#error unknown nr of irqs
|
|
#endif
|
|
|
|
/*
|
|
* The hardirq mask has to be large enough to have
|
|
* space for potentially all IRQ sources in the system
|
|
* nesting on a single CPU:
|
|
*/
|
|
#if (1 << HARDIRQ_BITS) < NR_IRQS
|
|
# error HARDIRQ_BITS is too low!
|
|
#endif
|
|
|
|
/*
|
|
* Interrupt source definitions
|
|
* General interrupt sources are the level 1-7.
|
|
* Adding an interrupt service routine for one of these sources
|
|
* results in the addition of that routine to a chain of routines.
|
|
* Each one is called in succession. Each individual interrupt
|
|
* service routine should determine if the device associated with
|
|
* that routine requires service.
|
|
*/
|
|
|
|
#define IRQ_SPURIOUS 0
|
|
|
|
#define IRQ_AUTO_1 1 /* level 1 interrupt */
|
|
#define IRQ_AUTO_2 2 /* level 2 interrupt */
|
|
#define IRQ_AUTO_3 3 /* level 3 interrupt */
|
|
#define IRQ_AUTO_4 4 /* level 4 interrupt */
|
|
#define IRQ_AUTO_5 5 /* level 5 interrupt */
|
|
#define IRQ_AUTO_6 6 /* level 6 interrupt */
|
|
#define IRQ_AUTO_7 7 /* level 7 interrupt (non-maskable) */
|
|
|
|
#define IRQ_USER 8
|
|
|
|
extern unsigned int irq_canonicalize(unsigned int irq);
|
|
|
|
struct pt_regs;
|
|
|
|
/*
|
|
* various flags for request_irq() - the Amiga now uses the standard
|
|
* mechanism like all other architectures - IRQF_DISABLED and
|
|
* IRQF_SHARED are your friends.
|
|
*/
|
|
#ifndef MACH_AMIGA_ONLY
|
|
#define IRQ_FLG_LOCK (0x0001) /* handler is not replaceable */
|
|
#define IRQ_FLG_REPLACE (0x0002) /* replace existing handler */
|
|
#define IRQ_FLG_FAST (0x0004)
|
|
#define IRQ_FLG_SLOW (0x0008)
|
|
#define IRQ_FLG_STD (0x8000) /* internally used */
|
|
#endif
|
|
|
|
/*
|
|
* This structure is used to chain together the ISRs for a particular
|
|
* interrupt source (if it supports chaining).
|
|
*/
|
|
typedef struct irq_node {
|
|
int (*handler)(int, void *);
|
|
void *dev_id;
|
|
struct irq_node *next;
|
|
unsigned long flags;
|
|
const char *devname;
|
|
} irq_node_t;
|
|
|
|
/*
|
|
* This structure has only 4 elements for speed reasons
|
|
*/
|
|
struct irq_handler {
|
|
int (*handler)(int, void *);
|
|
unsigned long flags;
|
|
void *dev_id;
|
|
const char *devname;
|
|
};
|
|
|
|
struct irq_controller {
|
|
const char *name;
|
|
spinlock_t lock;
|
|
int (*startup)(unsigned int irq);
|
|
void (*shutdown)(unsigned int irq);
|
|
void (*enable)(unsigned int irq);
|
|
void (*disable)(unsigned int irq);
|
|
};
|
|
|
|
extern int m68k_irq_startup(unsigned int);
|
|
extern void m68k_irq_shutdown(unsigned int);
|
|
|
|
/*
|
|
* This function returns a new irq_node_t
|
|
*/
|
|
extern irq_node_t *new_irq_node(void);
|
|
|
|
extern void m68k_setup_auto_interrupt(void (*handler)(unsigned int, struct pt_regs *));
|
|
extern void m68k_setup_user_interrupt(unsigned int vec, unsigned int cnt,
|
|
void (*handler)(unsigned int, struct pt_regs *));
|
|
extern void m68k_setup_irq_controller(struct irq_controller *, unsigned int, unsigned int);
|
|
|
|
asmlinkage void m68k_handle_int(unsigned int);
|
|
asmlinkage void __m68k_handle_int(unsigned int, struct pt_regs *);
|
|
|
|
#endif /* _M68K_IRQ_H_ */
|