NetBSD-5.0.2/sys/arch/xen/include/pci_machdep.h
/* $NetBSD: pci_machdep.h,v 1.10 2008/05/30 16:22:51 cegger Exp $ */
/*
* Copyright (c) 2006 Manuel Bouyer.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Manuel Bouyer.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/*
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
* Copyright (c) 1994 Charles M. Hannum. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Charles M. Hannum.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _XEN_PCI_MACHDEP_H_
#define _XEN_PCI_MACHDEP_H_
#include "opt_xen.h"
extern struct x86_bus_dma_tag pci_bus_dma_tag;
#ifdef _LP64
extern struct x86_bus_dma_tag pci_bus_dma64_tag;
#endif
/* Some values appropriate for x86, from x86/include/pci_machdep.h */
#define __HAVE_PCIIDE_MACHDEP_COMPAT_INTR_ESTABLISH
#define PCI_PREFER_IOSPACE
#ifdef XEN3
union x86_pci_tag_u {
uint32_t mode1;
struct {
uint16_t port;
uint8_t enable;
uint8_t forward;
} mode2;
};
typedef union x86_pci_tag_u pcitag_t;
#else /* XEN3 */
extern uint32_t pci_bus_attached[];
#define PCI_MACHDEP_ENUMERATE_BUS xen_pci_enumerate_bus
/* types provided to MI PCI */
struct xen_pci_tag {
uint8_t bus;
uint8_t device;
uint8_t function;
uint8_t _pad; /* pad to 32bits */
};
typedef struct xen_pci_tag pcitag_t;
#endif /* !XEN3 */
typedef void *pci_chipset_tag_t;
typedef struct xen_intr_handle pci_intr_handle_t;
/* functions provided to MI PCI */
struct pci_attach_args;
void pci_attach_hook(device_t, device_t,
struct pcibus_attach_args *);
int pci_bus_maxdevs(pci_chipset_tag_t, int);
pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int);
void pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
int *, int *, int *);
pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
void pci_conf_write(pci_chipset_tag_t, pcitag_t, int,
pcireg_t);
int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
int, int (*)(void *), void *);
void pci_intr_disestablish(pci_chipset_tag_t, void *);
int xen_pci_enumerate_bus(struct pci_softc *, const int *,
int (*)(struct pci_attach_args *), struct pci_attach_args *);
/* Extract Bus Number for a host bridge or -1 if unknown. */
int pchb_get_bus_number(pci_chipset_tag_t, pcitag_t);
/*
* Section 6.2.4, `Miscellaneous Functions' of the PCI Specification,
* says that 255 means `unknown' or `no connection' to the interrupt
* controller on a PC.
*/
#define X86_PCI_INTERRUPT_LINE_NO_CONNECTION 0xff
extern int pci_mode;
int pci_mode_detect(void);
int pci_bus_flags(void);
void pci_device_foreach(pci_chipset_tag_t, int,
void (*)(pci_chipset_tag_t, pcitag_t, void*),
void *);
void pci_device_foreach_min(pci_chipset_tag_t, int, int,
void (*)(pci_chipset_tag_t, pcitag_t, void*),
void *);
void pci_bridge_foreach(pci_chipset_tag_t, int, int,
void (*) (pci_chipset_tag_t, pcitag_t, void *), void *);
#endif /* _XEN_PCI_MACHDEP_H_ */