include/asm-ia64/sn/pcibus_provider_defs.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, 2000-2004 Silicon Graphics, Inc. All rights reserved.
   7  */
   8 #ifndef _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
   9 #define _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
  10
  11 /*
  12  * SN pci asic types.  Do not ever renumber these or reuse values.  The
  13  * values must agree with what prom thinks they are.
  14  */
  15
  16 #define PCIIO_ASIC_TYPE_UNKNOWN 0
  17 #define PCIIO_ASIC_TYPE_PPB     1
  18 #define PCIIO_ASIC_TYPE_PIC     2
  19 #define PCIIO_ASIC_TYPE_TIOCP   3
  20 #define PCIIO_ASIC_TYPE_TIOCA   4
  21
  22 #define PCIIO_ASIC_MAX_TYPES    5
  23
  24 /*
  25  * Common pciio bus provider data.  There should be one of these as the
  26  * first field in any pciio based provider soft structure (e.g. pcibr_soft
  27  * tioca_soft, etc).
  28  */
  29
  30 struct pcibus_bussoft {
  31         uint32_t                bs_asic_type;   /* chipset type */
  32         uint32_t                bs_xid;         /* xwidget id */
  33         uint64_t                bs_persist_busnum; /* Persistent Bus Number */
  34         uint64_t                bs_legacy_io;   /* legacy io pio addr */
  35         uint64_t                bs_legacy_mem;  /* legacy mem pio addr */
  36         uint64_t                bs_base;        /* widget base */
  37         struct xwidget_info     *bs_xwidget_info;
  38 };
  39
  40 /*
  41  * SN pci bus indirection
  42  */
  43
  44 struct sn_pcibus_provider {
  45         dma_addr_t      (*dma_map)(struct pci_dev *, unsigned long, size_t);
  46         dma_addr_t      (*dma_map_consistent)(struct pci_dev *, unsigned long, size_t);
  47         void            (*dma_unmap)(struct pci_dev *, dma_addr_t, int);
  48         void *          (*bus_fixup)(struct pcibus_bussoft *);
  49 };
  50
  51 extern struct sn_pcibus_provider *sn_pci_provider[];
  52 #endif                          /* _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H */