1 /* $NetBSD: pci_machdep.h,v 1.1 2001/12/11 00:18:22 uwe 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #ifndef _SPARC_PCI_MACHDEP_H_ 32 #define _SPARC_PCI_MACHDEP_H_ 33 34 /* 35 * Machine-specific definitions for PCI autoconfiguration. 36 */ 37 #if 0 38 /* 39 * On sparc64 we want device & function to be probed in PROM order. 40 * Do we need this on ms-IIep systems (perhaps for cp1200 that can 41 * have a PCI-to-PCI bridge)??? 42 */ 43 #define __PCI_BUS_DEVORDER 44 #define __PCI_DEV_FUNCORDER 45 #endif /* 0 */ 46 47 48 /* 49 * Types provided to machine-independent PCI code 50 */ 51 typedef struct sparc_pci_chipset *pci_chipset_tag_t; 52 typedef u_int pci_intr_handle_t; 53 typedef u_int64_t pcitag_t; 54 55 56 /* 57 * Forward declarations. 58 */ 59 struct pci_attach_args; 60 61 62 /* 63 * sparc-specific PCI structure and type definitions. 64 * NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE. 65 */ 66 struct sparc_pci_chipset { 67 void *cookie; /* msiiep_softc, but sssh! */ 68 }; 69 70 /* 71 * The MI PCI code expects pcitag_t to be a scalar type. But besides 72 * the bus/device/function we need to store the OFW node as well. We 73 * can squeeze them into a u_int64_t with a little help from some 74 * macros. And while we are at it mangle bus/device/function into a 75 * form directly suitable for pci mode1 configuration address port. 76 */ 77 #define PCITAG_CREATE(n,b,d,f) \ 78 (((u_int64_t)(n)<<32)|0x80000000U|((b)<<16)|((d)<<11)|((f)<<8)) 79 80 #define PCITAG_NODE(t) ((u_int32_t)(((t)>>32)&0xffffffff)) 81 #define PCITAG_OFFSET(t) ((u_int32_t)((t)&0xffffffff)) 82 #define PCITAG_BUS(t) ((PCITAG_OFFSET(t)>>16)&0xFF) 83 #define PCITAG_DEV(t) ((PCITAG_OFFSET(t)>>11)&0x1F) 84 #define PCITAG_FUN(t) ((PCITAG_OFFSET(t)>>8)&0x7) 85 86 87 /* 88 * Functions provided to machine-independent PCI code. 89 */ 90 void pci_attach_hook(struct device *, struct device *, 91 struct pcibus_attach_args *); 92 #ifdef __PCI_BUS_DEVORDER 93 int pci_bus_devorder(pci_chipset_tag_t, int, char *); 94 #endif 95 #ifdef __PCI_DEV_FUNCORDER 96 int pci_dev_funcorder(pci_chipset_tag_t, int, int, char *); 97 #endif 98 int pci_bus_maxdevs(pci_chipset_tag_t, int); 99 pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int); 100 void pci_decompose_tag(pci_chipset_tag_t, pcitag_t, 101 int *, int *, int *); 102 pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int); 103 void pci_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t); 104 int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *); 105 const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t); 106 const struct evcnt *pci_intr_evcnt(pci_chipset_tag_t, pci_intr_handle_t); 107 void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t, 108 int, int (*)(void *), void *); 109 void pci_intr_disestablish(pci_chipset_tag_t, void *); 110 111 #endif /* _SPARC_PCI_MACHDEP_H_ */ 112