include/asm-ia64/sn/tioce_provider.h

   1 /**************************************************************************
   2  *             Copyright (C) 2005, Silicon Graphics, Inc.                 *
   3  *                                                                        *
   4  *  These coded instructions, statements, and computer programs  contain  *
   5  *  unpublished  proprietary  information of Silicon Graphics, Inc., and  *
   6  *  are protected by Federal copyright law.  They  may  not be disclosed  *
   7  *  to  third  parties  or copied or duplicated in any form, in whole or  *
   8  *  in part, without the prior written consent of Silicon Graphics, Inc.  *
   9  *                                                                        *
  10  **************************************************************************/
  11
  12 #ifndef _ASM_IA64_SN_CE_PROVIDER_H
  13 #define _ASM_IA64_SN_CE_PROVIDER_H
  14
  15 #include <asm/sn/pcibus_provider_defs.h>
  16 #include <asm/sn/tioce.h>
  17
  18 /*
  19  * Common TIOCE structure shared between the prom and kernel
  20  *
  21  * DO NOT CHANGE THIS STRUCT WITHOUT MAKING CORRESPONDING CHANGES TO THE
  22  * PROM VERSION.
  23  */
  24 struct tioce_common {
  25         struct pcibus_bussoft   ce_pcibus;      /* common pciio header */
  26
  27         uint32_t                ce_rev;
  28         uint64_t                ce_kernel_private;
  29         uint64_t                ce_prom_private;
  30 };
  31
  32 struct tioce_kernel {
  33         struct tioce_common     *ce_common;
  34         spinlock_t              ce_lock;
  35         struct list_head        ce_dmamap_list;
  36
  37         uint64_t                ce_ate40_shadow[TIOCE_NUM_M40_ATES];
  38         uint64_t                ce_ate3240_shadow[TIOCE_NUM_M3240_ATES];
  39         uint32_t                ce_ate3240_pagesize;
  40
  41         uint8_t                 ce_port1_secondary;
  42
  43         /* per-port resources */
  44         struct {
  45                 int             dirmap_refcnt;
  46                 uint64_t        dirmap_shadow;
  47         } ce_port[TIOCE_NUM_PORTS];
  48 };
  49
  50 struct tioce_dmamap {
  51         struct list_head        ce_dmamap_list; /* headed by tioce_kernel */
  52         uint32_t                refcnt;
  53
  54         uint64_t                nbytes;         /* # bytes mapped */
  55
  56         uint64_t                ct_start;       /* coretalk start address */
  57         uint64_t                pci_start;      /* bus start address */
  58
  59         uint64_t                *ate_hw;        /* hw ptr of first ate in map */
  60         uint64_t                *ate_shadow;    /* shadow ptr of firat ate */
  61         uint16_t                ate_count;      /* # ate's in the map */
  62 };
  63
  64 extern int tioce_init_provider(void);
  65
  66 #endif  /* __ASM_IA64_SN_CE_PROVIDER_H */