94 lines
3 KiB
C
94 lines
3 KiB
C
|
/* irq.h: IRQ registers on the 64-bit Sparc.
|
||
|
|
*
|
||
|
|
* Copyright (C) 1996 David S. Miller (davem@davemloft.net)
|
||
|
|
* 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 0x80000000UL /* IRQ Enabled */
|
||
|
|
#define IMAP_TID_UPA 0x7c000000UL /* UPA TargetID */
|
||
|
|
#define IMAP_TID_JBUS 0x7c000000UL /* JBUS TargetID */
|
||
|
|
#define IMAP_TID_SHIFT 26
|
||
|
|
#define IMAP_AID_SAFARI 0x7c000000UL /* Safari AgentID */
|
||
|
|
#define IMAP_AID_SHIFT 26
|
||
|
|
#define IMAP_NID_SAFARI 0x03e00000UL /* Safari NodeID */
|
||
|
|
#define IMAP_NID_SHIFT 21
|
||
|
|
#define IMAP_IGN 0x000007c0UL /* IRQ Group Number */
|
||
|
|
#define IMAP_INO 0x0000003fUL /* IRQ Number */
|
||
|
|
#define IMAP_INR 0x000007ffUL /* Full interrupt number*/
|
||
|
|
|
||
|
|
#define ICLR_IDLE 0x00000000UL /* Idle state */
|
||
|
|
#define ICLR_TRANSMIT 0x00000001UL /* Transmit state */
|
||
|
|
#define ICLR_PENDING 0x00000003UL /* 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_virq(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 sun4u_build_msi(u32 portid, unsigned int *virt_irq_p,
|
||
|
|
unsigned int msi_devino_start,
|
||
|
|
unsigned int msi_devino_end,
|
||
|
|
unsigned long imap_base,
|
||
|
|
unsigned long iclr_base);
|
||
|
|
extern void sun4u_destroy_msi(unsigned int virt_irq);
|
||
|
|
extern unsigned int sbus_build_irq(void *sbus, unsigned int ino);
|
||
|
|
|
||
|
|
extern unsigned char virt_irq_alloc(unsigned int dev_handle,
|
||
|
|
unsigned int dev_ino);
|
||
|
|
#ifdef CONFIG_PCI_MSI
|
||
|
|
extern void virt_irq_free(unsigned int virt_irq);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
extern void __init init_IRQ(void);
|
||
|
|
extern void fixup_irqs(void);
|
||
|
|
|
||
|
|
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
|