4edef187b8
I/O windows, the default is to preserve the firmware-assigned resources. PCI bus numbers are only managed if NEW_PCIB is enabled and the architecture defines a PCI_RES_BUS resource type. - Add a helper API to create top-level PCI bus resource managers for each PCI domain/segment. Host-PCI bridge drivers use this API to allocate bus numbers from their associated domain. - Change the PCI bus and CardBus drivers to allocate a bus resource for their bus number from the parent PCI bridge device. - Change the PCI-PCI and PCI-CardBus bridge drivers to allocate the full range of bus numbers from secbus to subbus from their parent bridge. The drivers also always program their primary bus register. The bridge drivers also support growing their bus range by extending the bus resource and updating subbus to match the larger range. - Add support for managing PCI bus resources to the Host-PCI bridge drivers used for amd64 and i386 (acpi_pcib, mptable_pcib, legacy_pcib, and qpi_pcib). - Define a PCI_RES_BUS resource type for amd64 and i386. Reviewed by: imp MFC after: 1 month
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/*-
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* Copyright (c) 2008, M. Warner Losh
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* Copyright (c) 2000,2001 Jonathan Chen.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Structure definitions for the Cardbus Bus driver
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*/
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/*
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* Static copy of the CIS buffer. Technically, you aren't supposed
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* to do this. In practice, however, it works well.
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*/
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struct cis_buffer
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{
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size_t len; /* Actual length of the CIS */
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uint8_t buffer[2040]; /* small enough to be 2k */
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};
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/*
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* Per child information for the PCI device. Cardbus layers on some
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* additional data.
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*/
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struct cardbus_devinfo
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{
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struct pci_devinfo pci;
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uint8_t mprefetchable; /* bit mask of prefetchable BARs */
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uint8_t mbelow1mb; /* bit mask of BARs which require below 1Mb */
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uint16_t mfrid; /* manufacturer id */
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uint16_t prodid; /* product id */
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u_int funcid; /* function id */
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union {
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struct {
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uint8_t nid[6]; /* MAC address */
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} lan;
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} funce;
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uint32_t fepresent; /* bit mask of funce values present */
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struct cdev *sc_cisdev;
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struct cis_buffer sc_cis;
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};
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/*
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* Per cardbus soft info. Not sure why we even keep this around...
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*/
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struct cardbus_softc
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{
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device_t sc_dev;
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#ifdef PCI_RES_BUS
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struct resource *sc_bus;
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#endif
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};
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/*
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* Per node callback structures.
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*/
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struct tuple_callbacks;
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typedef int (tuple_cb) (device_t cbdev, device_t child, int id, int len,
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uint8_t *tupledata, uint32_t start, uint32_t *off,
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struct tuple_callbacks *info, void *);
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struct tuple_callbacks {
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int id;
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char *name;
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tuple_cb *func;
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};
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int cardbus_device_create(struct cardbus_softc *sc,
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struct cardbus_devinfo *devi, device_t parent, device_t child);
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int cardbus_device_destroy(struct cardbus_devinfo *devi);
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int cardbus_parse_cis(device_t cbdev, device_t child,
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struct tuple_callbacks *callbacks, void *);
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