kernel-ark/include/asm-ia64/sn/pcibus_provider_defs.h
Mark Maule 83821d3f55 [PATCH] PCI: altix: msi support
MSI callouts for altix.  Involves a fair amount of code reorg in sn irq.c
code as well as adding some extensions to the altix PCI provider abstaction.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-21 11:59:59 -07:00

69 lines
2.2 KiB
C

/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
#define _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
/*
* SN pci asic types. Do not ever renumber these or reuse values. The
* values must agree with what prom thinks they are.
*/
#define PCIIO_ASIC_TYPE_UNKNOWN 0
#define PCIIO_ASIC_TYPE_PPB 1
#define PCIIO_ASIC_TYPE_PIC 2
#define PCIIO_ASIC_TYPE_TIOCP 3
#define PCIIO_ASIC_TYPE_TIOCA 4
#define PCIIO_ASIC_TYPE_TIOCE 5
#define PCIIO_ASIC_MAX_TYPES 6
/*
* Common pciio bus provider data. There should be one of these as the
* first field in any pciio based provider soft structure (e.g. pcibr_soft
* tioca_soft, etc).
*/
struct pcibus_bussoft {
u32 bs_asic_type; /* chipset type */
u32 bs_xid; /* xwidget id */
u32 bs_persist_busnum; /* Persistent Bus Number */
u32 bs_persist_segment; /* Segment Number */
u64 bs_legacy_io; /* legacy io pio addr */
u64 bs_legacy_mem; /* legacy mem pio addr */
u64 bs_base; /* widget base */
struct xwidget_info *bs_xwidget_info;
};
struct pci_controller;
/*
* SN pci bus indirection
*/
struct sn_pcibus_provider {
dma_addr_t (*dma_map)(struct pci_dev *, unsigned long, size_t, int flags);
dma_addr_t (*dma_map_consistent)(struct pci_dev *, unsigned long, size_t, int flags);
void (*dma_unmap)(struct pci_dev *, dma_addr_t, int);
void * (*bus_fixup)(struct pcibus_bussoft *, struct pci_controller *);
void (*force_interrupt)(struct sn_irq_info *);
void (*target_interrupt)(struct sn_irq_info *);
};
/*
* Flags used by the map interfaces
* bits 3:0 specifies format of passed in address
* bit 4 specifies that address is to be used for MSI
*/
#define SN_DMA_ADDRTYPE(x) ((x) & 0xf)
#define SN_DMA_ADDR_PHYS 1 /* address is an xio address. */
#define SN_DMA_ADDR_XIO 2 /* address is phys memory */
#define SN_DMA_MSI 0x10 /* Bus address is to be used for MSI */
extern struct sn_pcibus_provider *sn_pci_provider[];
#endif /* _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H */