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      1 /*	$NetBSD: pci_machdep.c,v 1.11 2016/10/19 00:08:41 nonaka Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
      5  * Copyright (c) 1994 Charles M. Hannum.  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  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by Charles M. Hannum.
     18  * 4. The name of the author may not be used to endorse or promote products
     19  *    derived from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 
     33 /*
     34  * Machine-specific functions for PCI autoconfiguration.
     35  *
     36  * On PCs, there are two methods of generating PCI configuration cycles.
     37  * We try to detect the appropriate mechanism for this machine and set
     38  * up a few function pointers to access the correct method directly.
     39  */
     40 
     41 #include <sys/cdefs.h>
     42 __KERNEL_RCSID(0, "$NetBSD: pci_machdep.c,v 1.11 2016/10/19 00:08:41 nonaka Exp $");
     43 
     44 #include <sys/types.h>
     45 #include <sys/param.h>
     46 #include <sys/time.h>
     47 #include <sys/systm.h>
     48 #include <sys/errno.h>
     49 #include <sys/device.h>
     50 
     51 #define _POWERPC_BUS_DMA_PRIVATE
     52 #include <sys/bus.h>
     53 #include <machine/intr.h>
     54 #include <machine/platform.h>
     55 
     56 #include <powerpc/pio.h>
     57 
     58 #include <dev/isa/isavar.h>
     59 #include <dev/pci/pcivar.h>
     60 #include <dev/pci/pcireg.h>
     61 #include <dev/pci/pcidevs.h>
     62 
     63 #include <machine/pci_machdep.h>
     64 
     65 extern struct genppc_pci_chipset *genppc_pct;
     66 
     67 #define	PCI_MODE1_ADDRESS_REG	(PREP_BUS_SPACE_IO + 0xcf8)
     68 #define	PCI_MODE1_DATA_REG	(PREP_BUS_SPACE_IO + 0xcfc)
     69 
     70 void pci_intr_fixup(int, int, int *);
     71 
     72 void
     73 mvmeppc_pci_get_chipset_tag(pci_chipset_tag_t pc)
     74 {
     75 	pc->pc_conf_v = (void *)pc;
     76 
     77 	pc->pc_attach_hook = genppc_pci_indirect_attach_hook;
     78 	pc->pc_bus_maxdevs = genppc_pci_bus_maxdevs;
     79 	pc->pc_make_tag = genppc_pci_indirect_make_tag;
     80 	pc->pc_conf_read = genppc_pci_indirect_conf_read;
     81 	pc->pc_conf_write = genppc_pci_indirect_conf_write;
     82 
     83 	pc->pc_intr_v = (void *)pc;
     84 
     85 	pc->pc_intr_map = genppc_pci_intr_map;
     86 	pc->pc_intr_string = genppc_pci_intr_string;
     87 	pc->pc_intr_evcnt = genppc_pci_intr_evcnt;
     88 	pc->pc_intr_establish = genppc_pci_intr_establish;
     89 	pc->pc_intr_disestablish = genppc_pci_intr_disestablish;
     90 	pc->pc_intr_setattr = genppc_pci_intr_setattr;
     91 	pc->pc_intr_type = genppc_pci_intr_type;
     92 	pc->pc_intr_alloc = genppc_pci_intr_alloc;
     93 	pc->pc_intr_release = genppc_pci_intr_release;
     94 	pc->pc_intx_alloc = genppc_pci_intx_alloc;
     95 
     96 	pc->pc_msi_v = (void *)pc;
     97 	genppc_pci_chipset_msi_init(pc);
     98 
     99 	pc->pc_msix_v = (void *)pc;
    100 	genppc_pci_chipset_msix_init(pc);
    101 
    102 	pc->pc_conf_interrupt = mvmeppc_pci_conf_interrupt;
    103 	pc->pc_decompose_tag = genppc_pci_indirect_decompose_tag;
    104 	pc->pc_conf_hook = genppc_pci_conf_hook;
    105 
    106 	pc->pc_addr = mapiodev(PCI_MODE1_ADDRESS_REG, 4, false);
    107 	pc->pc_data = mapiodev(PCI_MODE1_DATA_REG, 4, false);
    108 	pc->pc_bus = 0;
    109 	pc->pc_node = 0;
    110 	pc->pc_memt = 0;
    111 	pc->pc_iot = 0;
    112 }
    113 
    114 void
    115 mvmeppc_pci_conf_interrupt(void *v, int bus, int dev, int pin,
    116     int swiz, int *iline)
    117 {
    118 
    119 	(*platform->pci_intr_fixup)(bus, dev, iline);
    120 }
    121