a3cea30b50
in the wanted bus_dma space. If an allocation fails during operation (i.e. when hotplugging an umass device), fall back to using the reserve. The amount can be configured as USB_MEM_RESERVE. The default value is 256k. Ideally, there would be a way to steal pages in the desired area from UVM, but that's far more complicated, and this is not intrusive, plus it works.
77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
/* $NetBSD: usb_pci.c,v 1.4 2004/12/21 16:41:24 fvdl Exp $ */
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/*
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* Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Lennart Augustsson (lennart@augustsson.net).
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: usb_pci.c,v 1.4 2004/12/21 16:41:24 fvdl Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/queue.h>
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#include <sys/proc.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/usb_pci.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usb_mem.h>
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#include <dev/usb/ehcireg.h>
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#include <dev/usb/ehcivar.h>
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struct usb_pci_alldevs ehci_pci_alldevs =
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TAILQ_HEAD_INITIALIZER(ehci_pci_alldevs);
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void
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usb_pci_add(struct usb_pci *up, struct pci_attach_args *pa, struct usbd_bus *bu)
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{
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TAILQ_INSERT_TAIL(&ehci_pci_alldevs, up, next);
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up->bus = pa->pa_bus;
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up->device = pa->pa_device;
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up->function = pa->pa_function;
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up->usb = bu;
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}
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void
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usb_pci_rem(struct usb_pci *up)
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{
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TAILQ_REMOVE(&ehci_pci_alldevs, up, next);
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}
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