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rbus_machdep.c revision 1.5 
      1 /*	$NetBSD: rbus_machdep.c,v 1.5 2011/01/04 11:41:24 kiyohara Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2003
      5  *     KIYOHARA Takashi.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 
     30 #include <sys/param.h>
     31 #include <sys/device.h>
     32 #include <sys/systm.h>
     33 
     34 #include <sys/extent.h>
     35 
     36 #include <machine/bus.h>
     37 
     38 #include <dev/pci/pcivar.h>
     39 #include <dev/pci/pcidevs.h>
     40 #include <dev/cardbus/rbus.h>
     41 
     42 #include <uvm/uvm_extern.h>
     43 
     44 #include "opt_pci.h"
     45 
     46 #ifndef PCI_NETBSD_CONFIGURE
     47 #error requird macro PCI_NETBSD_CONFIGURE
     48 #endif
     49 
     50 #ifdef RBUS_DEBUG
     51 # define DPRINTF printf
     52 #else
     53 # define DPRINTF while (0) printf
     54 #endif
     55 
     56 int
     57 md_space_map(bus_space_tag_t t, bus_addr_t bpa, bus_size_t size, int flags, bus_space_handle_t *bshp)
     58 {
     59 	DPRINTF("md_space_map: 0x%x, 0x%x, 0x%x\n", t->pbs_base, bpa, size);
     60 
     61 	return bus_space_map(t, bpa, size, flags, bshp);
     62 }
     63 
     64 void
     65 md_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size, bus_addr_t *adrp)
     66 {
     67 	paddr_t pa;
     68 
     69 	DPRINTF("md_space_unmap: 0x%x 0x%x\n", t->pbs_base, bsh);
     70 
     71 	if (adrp != NULL) {
     72         	pmap_extract(pmap_kernel(), bsh, &pa);
     73 		*adrp = pa - t->pbs_offset;
     74 	}
     75 	bus_space_unmap(t, bsh, size);
     76 }
     77 
     78 rbus_tag_t
     79 rbus_pccbb_parent_mem(struct pci_attach_args *pa)
     80 {
     81 	bus_addr_t start;
     82 	bus_size_t size;
     83 	pci_chipset_tag_t pc = pa->pa_pc;
     84 	struct extent *ex = pc->memext;
     85 
     86 	start = ex->ex_start;
     87 	size = ex->ex_end - start;
     88 
     89 	return rbus_new_root_share(pa->pa_memt, ex, start, size, 0);
     90 }
     91 
     92 rbus_tag_t
     93 rbus_pccbb_parent_io(struct pci_attach_args *pa)
     94 {
     95 	bus_addr_t start;
     96 	bus_size_t size;
     97 	pci_chipset_tag_t pc = pa->pa_pc;
     98 	struct extent *ex = pc->ioext;
     99 
    100 	start = ex->ex_start;
    101 	size = ex->ex_end - start;
    102 
    103 	return rbus_new_root_share(pa->pa_iot, ex, start, size, 0);
    104 }
    105