1 /* $NetBSD: pci_machdep.h,v 1.28 2016/07/07 06:55:38 msaitoh 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)(const 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)(const 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(device_t, device_t, 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 char *, size_t); 93 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 94 int pci_intr_map(const struct pci_attach_args *, 95 pci_intr_handle_t *); 96 void pci_intr_disestablish(pci_chipset_tag_t, void *); 97 98 int sparc64_pci_enumerate_bus(struct pci_softc *, const int *, 99 int (*)(const struct pci_attach_args *), 100 struct pci_attach_args *); 101 #define PCI_MACHDEP_ENUMERATE_BUS sparc64_pci_enumerate_bus 102 103 #define pci_conf_read(pc, tag, reg) \ 104 ((pc)->spc_conf_read(pc, tag, reg)) 105 #define pci_conf_write(pc, tag, reg, val) \ 106 ((pc)->spc_conf_write(pc, tag, reg, val)) 107 #define pci_intr_establish(pc, handle, level, func, arg) \ 108 ((pc)->spc_intr_establish(pc, handle, level, func, arg)) 109 110 /* SPARC specific PCI interfaces */ 111 int sparc_pci_childspace(int); 112 113 #endif /* _MACHINE_PCI_MACHDEP_H_ */ 114