intr.h

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/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
 */

#ifndef _ASM_IA64_SN_INTR_H
#define _ASM_IA64_SN_INTR_H

#include <linux/rcupdate.h>
#include <asm/sn/types.h>

#define SGI_UART_VECTOR     0xe9

/* Reserved IRQs : Note, not to exceed IA64_SN2_FIRST_DEVICE_VECTOR */
#define SGI_XPC_ACTIVATE    0x30
#define SGI_II_ERROR        0x31
#define SGI_XBOW_ERROR      0x32
#define SGI_PCIASIC_ERROR   0x33
#define SGI_ACPI_SCI_INT    0x34
#define SGI_TIOCA_ERROR     0x35
#define SGI_TIO_ERROR       0x36
#define SGI_TIOCX_ERROR     0x37
#define SGI_MMTIMER_VECTOR  0x38
#define SGI_XPC_NOTIFY      0xe7

#define IA64_SN2_FIRST_DEVICE_VECTOR    0x3c
#define IA64_SN2_LAST_DEVICE_VECTOR 0xe6

#define SN2_IRQ_RESERVED    0x1
#define SN2_IRQ_CONNECTED   0x2
#define SN2_IRQ_SHARED      0x4

// The SN PROM irq struct
struct sn_irq_info {
    struct sn_irq_info *irq_next;   /* deprecated DO NOT USE     */
    short       irq_nasid;  /* Nasid IRQ is assigned to  */
    int     irq_slice;  /* slice IRQ is assigned to  */
    int     irq_cpuid;  /* kernel logical cpuid      */
    int     irq_irq;    /* the IRQ number */
    int     irq_int_bit;    /* Bridge interrupt pin */
                    /* <0 means MSI */
    u64 irq_xtalkaddr;  /* xtalkaddr IRQ is sent to  */
    int     irq_bridge_type;/* pciio asic type (pciio.h) */
    void           *irq_bridge; /* bridge generating irq     */
    void           *irq_pciioinfo;  /* associated pciio_info_t   */
    int     irq_last_intr;  /* For Shub lb lost intr WAR */
    int     irq_cookie; /* unique cookie         */
    int     irq_flags;  /* flags */
    int     irq_share_cnt;  /* num devices sharing IRQ   */
    struct list_head    list;   /* list of sn_irq_info structs */
    struct rcu_head     rcu;    /* rcu callback list */
};

extern void sn_send_IPI_phys(int, long, int, int);
extern u64 sn_intr_alloc(nasid_t, int,
                  struct sn_irq_info *,
                  int, nasid_t, int);
extern void sn_intr_free(nasid_t, int, struct sn_irq_info *);
extern struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *, nasid_t, int);
extern void sn_set_err_irq_affinity(unsigned int);
extern struct list_head **sn_irq_lh;

#define CPU_VECTOR_TO_IRQ(cpuid,vector) (vector)

#endif /* _ASM_IA64_SN_INTR_H */