sys/arch/sparc64/include/pci_machdep.h

   1 /* $NetBSD: pci_machdep.h,v 1.23 2009/11/30 05:00:58 mrg Exp $ */
   2
   3 /*
   4  * Copyright (c) 1999 Matthew R. Green
   5  * 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,
  21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef _MACHINE_PCI_MACHDEP_H_
  30 #define _MACHINE_PCI_MACHDEP_H_
  31
  32 /*
  33  * Forward declarations.
  34  */
  35 struct pci_attach_args;
  36
  37 /*
  38  * define some bits used to glue into the common PCI code.
  39  */
  40
  41 /*
  42  * The stuuuuuuupid allegedly MI PCI code expects pcitag_t to be a
  43  * scalar type.  But we really need to store both the OFW node and
  44  * the bus/device/function info in it.  (We'd like to store more,
  45  * like all the ofw properties, but we don't need to.)  Luckily,
  46  * both are 32-bit values, so we can squeeze them into a uint64_t
  47  * with a little help from some macros.
  48  */
  49
  50 #define PCITAG_NODE(x)          (int)(((x)>>32)&0xffffffff)
  51 #define PCITAG_OFFSET(x)        ((x)&0xffffffff)
  52 #define PCITAG_BUS(t)           ((PCITAG_OFFSET(t)>>16)&0xff)
  53 #define PCITAG_DEV(t)           ((PCITAG_OFFSET(t)>>11)&0x1f)
  54 #define PCITAG_FUN(t)           ((PCITAG_OFFSET(t)>>8)&0x7)
  55 #define PCITAG_CREATE(n,b,d,f)  (((uint64_t)(n)<<32)|((b)<<16)|((d)<<11)|((f)<<8))
  56 #define PCITAG_SETNODE(t,n)     ((t)&0xffffffff)|(((n)<<32)
  57 typedef uint64_t pcitag_t;
  58
  59 typedef struct sparc_pci_chipset *pci_chipset_tag_t;
  60 typedef u_int pci_intr_handle_t;
  61
  62 struct sparc_pci_chipset {
  63         void            *cookie;        /* psycho_pbm/, but sssh! */
  64         int             rootnode;       /* PCI controller */
  65
  66         /* pci(9) interfaces */
  67         pcireg_t        (*spc_conf_read)(pci_chipset_tag_t, pcitag_t, int);
  68         void            (*spc_conf_write)(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
  69
  70         int             (*spc_intr_map)(struct pci_attach_args *, pci_intr_handle_t *);
  71         void            *(*spc_intr_establish)(pci_chipset_tag_t, pci_intr_handle_t, int, int (*)(void *), void *);
  72
  73         /* private interfaces */
  74         int             (*spc_find_ino)(struct pci_attach_args *, pci_intr_handle_t *);
  75
  76         int             spc_busmax;
  77         struct spc_busnode {
  78                 int     node;
  79                 int     (*valid)(void *);
  80                 void    *arg;
  81         }               (*spc_busnode)[256];
  82 };
  83
  84
  85 void            pci_attach_hook(struct device *, struct device *,
  86                                      struct pcibus_attach_args *);
  87 int             pci_bus_maxdevs(pci_chipset_tag_t, int);
  88 pcitag_t        pci_make_tag(pci_chipset_tag_t, int, int, int);
  89 void            pci_decompose_tag(pci_chipset_tag_t, pcitag_t, int *, int *,
  90                     int *);
  91 const char      *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
  92 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t);
  93 int             pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
  94 void            pci_intr_disestablish(pci_chipset_tag_t, void *);
  95
  96 int             sparc64_pci_enumerate_bus(struct pci_softc *, const int *,
  97                     int (*)(struct pci_attach_args *),
  98                     struct pci_attach_args *);
  99 #define PCI_MACHDEP_ENUMERATE_BUS sparc64_pci_enumerate_bus
 100
 101 #define pci_conf_read(pc, tag, reg) \
 102                 ((pc)->spc_conf_read(pc, tag, reg))
 103 #define pci_conf_write(pc, tag, reg, val) \
 104                 ((pc)->spc_conf_write(pc, tag, reg, val))
 105 #define pci_intr_establish(pc, handle, level, func, arg) \
 106                 ((pc)->spc_intr_establish(pc, handle, level, func, arg))
 107
 108 /* SPARC specific PCI interfaces */
 109 int             sparc_pci_childspace(int);
 110
 111 #endif /* _MACHINE_PCI_MACHDEP_H_ */