1 /* $NetBSD: pci_machdep.h,v 1.12 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 _SPARC_PCI_MACHDEP_H_ 30 #define _SPARC_PCI_MACHDEP_H_ 31 32 /* 33 * Machine-specific definitions for PCI autoconfiguration. 34 */ 35 36 /* 37 * Types provided to machine-independent PCI code 38 */ 39 typedef struct sparc_pci_chipset *pci_chipset_tag_t; 40 typedef u_int pci_intr_handle_t; 41 typedef uint64_t pcitag_t; 42 43 44 /* 45 * Forward declarations. 46 */ 47 struct pci_attach_args; 48 49 50 /* 51 * sparc-specific PCI structure and type definitions. 52 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 53 */ 54 struct sparc_pci_chipset { 55 void *cookie; /* msiiep_softc, but sssh! */ 56 }; 57 58 #define IS_PCI_BRIDGE(class) \ 59 (((class >> 16) & 0xff) == PCI_CLASS_BRIDGE && \ 60 ((class >> 8) & 0xff) == PCI_SUBCLASS_BRIDGE_PCI) 61 62 /* 63 * The MI PCI code expects pcitag_t to be a scalar type. But besides 64 * the bus/device/function we need to store the OFW node as well. We 65 * can squeeze them into a uint64_t with a little help from some 66 * macros. And while we are at it mangle bus/device/function into a 67 * form directly suitable for pci mode1 configuration address port. 68 */ 69 #define PCITAG_CREATE(n,b,d,f) \ 70 (((uint64_t)(n)<<32)|0x80000000U|((b)<<16)|((d)<<11)|((f)<<8)|(b?1:0)) 71 72 #define PCITAG_NODE(t) ((uint32_t)(((t)>>32)&0xffffffff)) 73 #define PCITAG_OFFSET(t) ((uint32_t)((t)&0xffffffff)) 74 #define PCITAG_BUS(t) ((PCITAG_OFFSET(t)>>16)&0xFF) 75 #define PCITAG_DEV(t) ((PCITAG_OFFSET(t)>>11)&0x1F) 76 #define PCITAG_FUN(t) ((PCITAG_OFFSET(t)>>8)&0x7) 77 78 79 /* 80 * Functions provided to machine-independent PCI code. 81 */ 82 void pci_attach_hook(device_t, device_t, 83 struct pcibus_attach_args *); 84 int pci_bus_maxdevs(pci_chipset_tag_t, int); 85 pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 86 void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, 87 int *, int *, int *); 88 pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 89 void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t); 90 int pci_intr_map(const struct pci_attach_args *, 91 pci_intr_handle_t *); 92 const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t, 93 char *, size_t); 94 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 95 void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 96 int, int (*)(void *), void *); 97 void pci_intr_disestablish(pci_chipset_tag_t, void *); 98 99 #endif /* _SPARC_PCI_MACHDEP_H_ */ 100