LXR linux/arch/ia64/sn/include/xtalk/hubdev.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, 2000-2005 Silicon Graphics, Inc. All rights reserved.
   7 */
   8#ifndef _ASM_IA64_SN_XTALK_HUBDEV_H
   9#define _ASM_IA64_SN_XTALK_HUBDEV_H
  10
  11#include "xtalk/xwidgetdev.h"
  12
  13#define HUB_WIDGET_ID_MAX 0xf
  14#define DEV_PER_WIDGET (2*2*8)
  15#define IIO_ITTE_WIDGET_BITS    4       /* size of widget field */
  16#define IIO_ITTE_WIDGET_MASK    ((1<<IIO_ITTE_WIDGET_BITS)-1)
  17#define IIO_ITTE_WIDGET_SHIFT   8
  18
  19#define IIO_ITTE_WIDGET(itte)   \
  20        (((itte) >> IIO_ITTE_WIDGET_SHIFT) & IIO_ITTE_WIDGET_MASK)
  21
  22/*
  23 * Use the top big window as a surrogate for the first small window
  24 */
  25#define SWIN0_BIGWIN            HUB_NUM_BIG_WINDOW
  26#define IIO_NUM_ITTES   7
  27#define HUB_NUM_BIG_WINDOW      (IIO_NUM_ITTES - 1)
  28
  29/* This struct is shared between the PROM and the kernel.
  30 * Changes to this struct will require corresponding changes to the kernel.
  31 */
  32struct sn_flush_device_common {
  33        int sfdl_bus;
  34        int sfdl_slot;
  35        int sfdl_pin;
  36        struct common_bar_list {
  37                unsigned long start;
  38                unsigned long end;
  39        } sfdl_bar_list[6];
  40        unsigned long sfdl_force_int_addr;
  41        unsigned long sfdl_flush_value;
  42        volatile unsigned long *sfdl_flush_addr;
  43        u32 sfdl_persistent_busnum;
  44        u32 sfdl_persistent_segment;
  45        struct pcibus_info *sfdl_pcibus_info;
  46};
  47
  48/* This struct is kernel only and is not used by the PROM */
  49struct sn_flush_device_kernel {
  50        spinlock_t sfdl_flush_lock;
  51        struct sn_flush_device_common *common;
  52};
  53
  54/* 01/16/06 This struct is the old PROM/kernel struct and needs to be included
  55 * for older official PROMs to function on the new kernel base.  This struct
  56 * will be removed when the next official PROM release occurs. */
  57
  58struct sn_flush_device_war {
  59        struct sn_flush_device_common common;
  60        u32 filler; /* older PROMs expect the default size of a spinlock_t */
  61};
  62
  63/*
  64 * **widget_p - Used as an array[wid_num][device] of sn_flush_device_kernel.
  65 */
  66struct sn_flush_nasid_entry  {
  67        struct sn_flush_device_kernel **widget_p; // Used as an array of wid_num
  68        u64 iio_itte[8];
  69};
  70
  71struct hubdev_info {
  72        geoid_t                         hdi_geoid;
  73        short                           hdi_nasid;
  74        short                           hdi_peer_nasid;   /* Dual Porting Peer */
  75
  76        struct sn_flush_nasid_entry     hdi_flush_nasid_list;
  77        struct xwidget_info             hdi_xwidget_info[HUB_WIDGET_ID_MAX + 1];
  78
  79
  80        void                            *hdi_nodepda;
  81        void                            *hdi_node_vertex;
  82        u32                             max_segment_number;
  83        u32                             max_pcibus_number;
  84};
  85
  86extern void hubdev_init_node(nodepda_t *, cnodeid_t);
  87extern void hub_error_init(struct hubdev_info *);
  88extern void ice_error_init(struct hubdev_info *);
  89
  90
  91#endif /* _ASM_IA64_SN_XTALK_HUBDEV_H */
  92