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
6 * Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
8 #ifndef _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
9 #define _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
12 * SN pci asic types. Do not ever renumber these or reuse values. The
13 * values must agree with what prom thinks they are.
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 #define PCIIO_ASIC_TYPE_TIOCE 5
23 #define PCIIO_ASIC_MAX_TYPES 6
26 * Common pciio bus provider data. There should be one of these as the
27 * first field in any pciio based provider soft structure (e.g. pcibr_soft
31 struct pcibus_bussoft {
32 u32 bs_asic_type; /* chipset type */
33 u32 bs_xid; /* xwidget id */
34 u32 bs_persist_busnum; /* Persistent Bus Number */
35 u32 bs_persist_segment; /* Segment Number */
36 u64 bs_legacy_io; /* legacy io pio addr */
37 u64 bs_legacy_mem; /* legacy mem pio addr */
38 u64 bs_base; /* widget base */
39 struct xwidget_info *bs_xwidget_info;
42 struct pci_controller;
44 * SN pci bus indirection
47 struct sn_pcibus_provider {
48 dma_addr_t (*dma_map)(struct pci_dev *, unsigned long, size_t, int flags);
49 dma_addr_t (*dma_map_consistent)(struct pci_dev *, unsigned long, size_t, int flags);
50 void (*dma_unmap)(struct pci_dev *, dma_addr_t, int);
51 void * (*bus_fixup)(struct pcibus_bussoft *, struct pci_controller *);
52 void (*force_interrupt)(struct sn_irq_info *);
53 void (*target_interrupt)(struct sn_irq_info *);
57 * Flags used by the map interfaces
58 * bits 3:0 specifies format of passed in address
59 * bit 4 specifies that address is to be used for MSI
62 #define SN_DMA_ADDRTYPE(x) ((x) & 0xf)
63 #define SN_DMA_ADDR_PHYS 1 /* address is an xio address. */
64 #define SN_DMA_ADDR_XIO 2 /* address is phys memory */
65 #define SN_DMA_MSI 0x10 /* Bus address is to be used for MSI */
67 extern struct sn_pcibus_provider *sn_pci_provider[];
68 #endif /* _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H */