69 lines
2.6 KiB
C
69 lines
2.6 KiB
C
/* $NetBSD: bus_private.h,v 1.8 2007/11/22 16:16:56 bouyer Exp $ */
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/*-
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* Copyright (c)2005 YAMAMOTO Takashi,
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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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#include <uvm/uvm_extern.h>
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#define _BUS_PHYS_TO_BUS(pa) ((bus_addr_t)xpmap_ptom(pa))
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#define _BUS_BUS_TO_PHYS(ba) ((paddr_t)xpmap_mtop(ba))
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#define _BUS_VIRT_TO_BUS(pm, va) _bus_virt_to_bus((pm), (va))
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#define _BUS_BUS_TO_VM_PAGE(ba) (PHYS_TO_VM_PAGE(xpmap_mtop(ba)))
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#define _BUS_PMAP_ENTER(pmap, va, ba, prot, flags) \
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pmap_enter(pmap, va, xpmap_mtop(ba), prot, flags)
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static __inline bus_addr_t _bus_virt_to_bus(struct pmap *, vaddr_t);
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static __inline bus_addr_t
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_bus_virt_to_bus(struct pmap *pm, vaddr_t va)
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{
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bus_addr_t ba;
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if (!pmap_extract_ma(pm, va, &ba)) {
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panic("_bus_virt_to_bus");
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}
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return ba;
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}
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/* we need our own bus_dmamem_alloc_range */
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#define _BUS_DMAMEM_ALLOC_RANGE _xen_bus_dmamem_alloc_range
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int _xen_bus_dmamem_alloc_range(bus_dma_tag_t, bus_size_t, bus_size_t,
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bus_size_t, bus_dma_segment_t *, int, int *, int,
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bus_addr_t, bus_addr_t);
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/*
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* The higher machine address of our allocated range isn't know and can change
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* over time. Just assume it's the largest possible value.
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*/
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#if defined(_LP64) || defined(PAE)
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#define _BUS_AVAIL_END ((bus_addr_t)0xffffffffffffffff)
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#else
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#define _BUS_AVAIL_END ((bus_addr_t)0xffffffff)
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#endif
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#include <x86/bus_private.h>
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