kernel/arch/ia64/include/asm/sn/tioce_provider.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) 2003-2005 Silicon Graphics, Inc. All rights reserved.
   7  */
   8
   9 #ifndef _ASM_IA64_SN_CE_PROVIDER_H
  10 #define _ASM_IA64_SN_CE_PROVIDER_H
  11
  12 #include <asm/sn/pcibus_provider_defs.h>
  13 #include <asm/sn/tioce.h>
  14
  15 /*
  16  * Common TIOCE structure shared between the prom and kernel
  17  *
  18  * DO NOT CHANGE THIS STRUCT WITHOUT MAKING CORRESPONDING CHANGES TO THE
  19  * PROM VERSION.
  20  */
  21 struct tioce_common {
  22         struct pcibus_bussoft   ce_pcibus;      /* common pciio header */
  23
  24         u32             ce_rev;
  25         u64             ce_kernel_private;
  26         u64             ce_prom_private;
  27 };
  28
  29 struct tioce_kernel {
  30         struct tioce_common     *ce_common;
  31         spinlock_t              ce_lock;
  32         struct list_head        ce_dmamap_list;
  33
  34         u64             ce_ate40_shadow[TIOCE_NUM_M40_ATES];
  35         u64             ce_ate3240_shadow[TIOCE_NUM_M3240_ATES];
  36         u32             ce_ate3240_pagesize;
  37
  38         u8                      ce_port1_secondary;
  39
  40         /* per-port resources */
  41         struct {
  42                 int             dirmap_refcnt;
  43                 u64     dirmap_shadow;
  44         } ce_port[TIOCE_NUM_PORTS];
  45 };
  46
  47 struct tioce_dmamap {
  48         struct list_head        ce_dmamap_list; /* headed by tioce_kernel */
  49         u32             refcnt;
  50
  51         u64             nbytes;         /* # bytes mapped */
  52
  53         u64             ct_start;       /* coretalk start address */
  54         u64             pci_start;      /* bus start address */
  55
  56         u64             __iomem *ate_hw;/* hw ptr of first ate in map */
  57         u64             *ate_shadow;    /* shadow ptr of firat ate */
  58         u16             ate_count;      /* # ate's in the map */
  59 };
  60
  61 extern int tioce_init_provider(void);
  62
  63 #endif  /* __ASM_IA64_SN_CE_PROVIDER_H */