/* $Id: irq.h,v 1.21 2002/01/23 11:27:36 davem Exp $ * irq.h: IRQ registers on the 64-bit Sparc. * * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) */ #ifndef _SPARC64_IRQ_H #define _SPARC64_IRQ_H #include <linux/linkage.h> #include <linux/kernel.h> #include <linux/errno.h> #include <linux/interrupt.h> #include <asm/pil.h> #include <asm/ptrace.h> /* IMAP/ICLR register defines */ #define IMAP_VALID 0x80000000 /* IRQ Enabled */ #define IMAP_TID_UPA 0x7c000000 /* UPA TargetID */ #define IMAP_TID_JBUS 0x7c000000 /* JBUS TargetID */ #define IMAP_TID_SHIFT 26 #define IMAP_AID_SAFARI 0x7c000000 /* Safari AgentID */ #define IMAP_AID_SHIFT 26 #define IMAP_NID_SAFARI 0x03e00000 /* Safari NodeID */ #define IMAP_NID_SHIFT 21 #define IMAP_IGN 0x000007c0 /* IRQ Group Number */ #define IMAP_INO 0x0000003f /* IRQ Number */ #define IMAP_INR 0x000007ff /* Full interrupt number*/ #define ICLR_IDLE 0x00000000 /* Idle state */ #define ICLR_TRANSMIT 0x00000001 /* Transmit state */ #define ICLR_PENDING 0x00000003 /* Pending state */ /* The largest number of unique interrupt sources we support. * If this needs to ever be larger than 255, you need to change * the type of ino_bucket->virt_irq as appropriate. * * ino_bucket->virt_irq allocation is made during {sun4v_,}build_irq(). */ #define NR_IRQS 255 extern void irq_install_pre_handler(int virt_irq, void (*func)(unsigned int, void *, void *), void *arg1, void *arg2); #define irq_canonicalize(irq) (irq) extern unsigned int build_irq(int inofixup, unsigned long iclr, unsigned long imap); extern unsigned int sun4v_build_irq(u32 devhandle, unsigned int devino); extern unsigned int sun4v_build_msi(u32 devhandle, unsigned int *virt_irq_p, unsigned int msi_devino_start, unsigned int msi_devino_end); extern void sun4v_destroy_msi(unsigned int virt_irq); extern unsigned int sbus_build_irq(void *sbus, unsigned int ino); static __inline__ void set_softint(unsigned long bits) { __asm__ __volatile__("wr %0, 0x0, %%set_softint" : /* No outputs */ : "r" (bits)); } static __inline__ void clear_softint(unsigned long bits) { __asm__ __volatile__("wr %0, 0x0, %%clear_softint" : /* No outputs */ : "r" (bits)); } static __inline__ unsigned long get_softint(void) { unsigned long retval; __asm__ __volatile__("rd %%softint, %0" : "=r" (retval)); return retval; } #endif