LXR linux/arch/ia64/include/asm/sn/intr.h

   1/*
   2 * This file is subject to the terms and conditions of the GNU General Public
   3 * License.  See the file "COPYING" in the main directory of this archive
   4 * for more details.
   5 *
   6 * Copyright (C) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
   7 */
   8
   9#ifndef _ASM_IA64_SN_INTR_H
  10#define _ASM_IA64_SN_INTR_H
  11
  12#include <linux/rcupdate.h>
  13#include <asm/sn/types.h>
  14
  15#define SGI_UART_VECTOR         0xe9
  16
  17/* Reserved IRQs : Note, not to exceed IA64_SN2_FIRST_DEVICE_VECTOR */
  18#define SGI_XPC_ACTIVATE        0x30
  19#define SGI_II_ERROR            0x31
  20#define SGI_XBOW_ERROR          0x32
  21#define SGI_PCIASIC_ERROR       0x33
  22#define SGI_ACPI_SCI_INT        0x34
  23#define SGI_TIOCA_ERROR         0x35
  24#define SGI_TIO_ERROR           0x36
  25#define SGI_TIOCX_ERROR         0x37
  26#define SGI_MMTIMER_VECTOR      0x38
  27#define SGI_XPC_NOTIFY          0xe7
  28
  29#define IA64_SN2_FIRST_DEVICE_VECTOR    0x3c
  30#define IA64_SN2_LAST_DEVICE_VECTOR     0xe6
  31
  32#define SN2_IRQ_RESERVED        0x1
  33#define SN2_IRQ_CONNECTED       0x2
  34#define SN2_IRQ_SHARED          0x4
  35
  36// The SN PROM irq struct
  37struct sn_irq_info {
  38        struct sn_irq_info *irq_next;   /* deprecated DO NOT USE     */
  39        short           irq_nasid;      /* Nasid IRQ is assigned to  */
  40        int             irq_slice;      /* slice IRQ is assigned to  */
  41        int             irq_cpuid;      /* kernel logical cpuid      */
  42        int             irq_irq;        /* the IRQ number */
  43        int             irq_int_bit;    /* Bridge interrupt pin */
  44                                        /* <0 means MSI */
  45        u64     irq_xtalkaddr;  /* xtalkaddr IRQ is sent to  */
  46        int             irq_bridge_type;/* pciio asic type (pciio.h) */
  47        void           *irq_bridge;     /* bridge generating irq     */
  48        void           *irq_pciioinfo;  /* associated pciio_info_t   */
  49        int             irq_last_intr;  /* For Shub lb lost intr WAR */
  50        int             irq_cookie;     /* unique cookie             */
  51        int             irq_flags;      /* flags */
  52        int             irq_share_cnt;  /* num devices sharing IRQ   */
  53        struct list_head        list;   /* list of sn_irq_info structs */
  54        struct rcu_head         rcu;    /* rcu callback list */
  55};
  56
  57extern void sn_send_IPI_phys(int, long, int, int);
  58extern u64 sn_intr_alloc(nasid_t, int,
  59                              struct sn_irq_info *,
  60                              int, nasid_t, int);
  61extern void sn_intr_free(nasid_t, int, struct sn_irq_info *);
  62extern struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *, nasid_t, int);
  63extern void sn_set_err_irq_affinity(unsigned int);
  64extern struct list_head **sn_irq_lh;
  65
  66#define CPU_VECTOR_TO_IRQ(cpuid,vector) (vector)
  67
  68#endif /* _ASM_IA64_SN_INTR_H */
  69