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/* $Id: irq.h,v 1.7 1997/09/07 02:56:44 davem Exp $
* irq.h: IRQ registers on the 64-bit Sparc.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
*/
#ifndef _SPARC64_IRQ_H
#define _SPARC64_IRQ_H
#include <linux/linkage.h>
/* Sparc64 extensions to the interrupt registry flags. Mostly this is
* for passing along what bus type the device is on and also the true
* format of the dev_id cookie, see below.
*/
#define SA_BUSMASK 0x0f000
#define SA_SBUS 0x01000
#define SA_PCI 0x02000
#define SA_FHC 0x03000
#define SA_EBUS 0x04000
#define SA_BUS(mask) ((mask) & SA_BUSMASK)
struct devid_cookie {
/* Caller specifies these. */
void *real_dev_id; /* What dev_id would usually contain. */
unsigned int *imap; /* Anonymous IMAP register */
unsigned int *iclr; /* Anonymous ICLR register */
int pil; /* Anonymous PIL */
void *bus_cookie; /* SYSIO regs, PSYCHO regs, etc. */
/* Return values. */
unsigned int ret_ino;
unsigned int ret_pil;
};
#define SA_DCOOKIE 0x10000
#define NR_IRQS 15
extern void disable_irq(unsigned int);
extern void enable_irq(unsigned int);
extern void init_timers(void (*lvl10_irq)(int, void *, struct pt_regs *));
#ifdef __SMP__
extern void set_cpu_int(int, int);
extern void clear_cpu_int(int, int);
extern void set_irq_udt(int);
#endif
extern int request_fast_irq(unsigned int irq,
void (*handler)(int, void *, struct pt_regs *),
unsigned long flags, __const__ char *devname,
void *dev_id);
extern __inline__ void set_softint(unsigned long bits)
{
__asm__ __volatile__("wr %0, 0x0, %%set_softint"
: /* No outputs */
: "r" (bits));
}
extern __inline__ void clear_softint(unsigned long bits)
{
__asm__ __volatile__("wr %0, 0x0, %%clear_softint"
: /* No outputs */
: "r" (bits));
}
extern __inline__ unsigned long get_softint(void)
{
unsigned long retval;
__asm__ __volatile__("rd %%softint, %0"
: "=r" (retval));
return retval;
}
#endif
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