ofw_isa.c revision 117119
186232Stmm/* 286232Stmm * Copyright (c) 1999, 2000 Matthew R. Green 3117119Stmm * Copyright (c) 2001, 2003 Thomas Moestl <tmm@FreeBSD.org> 486232Stmm * All rights reserved. 586232Stmm * 686232Stmm * Redistribution and use in source and binary forms, with or without 786232Stmm * modification, are permitted provided that the following conditions 886232Stmm * are met: 986232Stmm * 1. Redistributions of source code must retain the above copyright 1086232Stmm * notice, this list of conditions and the following disclaimer. 1186232Stmm * 2. Redistributions in binary form must reproduce the above copyright 1286232Stmm * notice, this list of conditions and the following disclaimer in the 1386232Stmm * documentation and/or other materials provided with the distribution. 1486232Stmm * 3. The name of the author may not be used to endorse or promote products 1586232Stmm * derived from this software without specific prior written permission. 1686232Stmm * 1786232Stmm * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1886232Stmm * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1986232Stmm * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 2086232Stmm * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2186232Stmm * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 2286232Stmm * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 2386232Stmm * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 2486232Stmm * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 2586232Stmm * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2686232Stmm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2786232Stmm * SUCH DAMAGE. 2886232Stmm * 2986232Stmm * from: NetBSD: ebus.c,v 1.26 2001/09/10 16:27:53 eeh Exp 3086232Stmm * 3186232Stmm * $FreeBSD: head/sys/sparc64/isa/ofw_isa.c 117119 2003-07-01 14:52:47Z tmm $ 3286232Stmm */ 3386232Stmm 3486232Stmm/* 3586232Stmm * Helper functions which can be used in both ISA and EBus code. 3686232Stmm */ 3786232Stmm 38117119Stmm#include "opt_ofw_pci.h" 39117119Stmm 4086232Stmm#include <sys/param.h> 4191966Stmm#include <sys/systm.h> 4286232Stmm#include <sys/bus.h> 4386232Stmm 4486232Stmm#include <ofw/openfirm.h> 4586232Stmm#include <ofw/ofw_pci.h> 4686232Stmm 47117119Stmm#include <machine/bus.h> 4886232Stmm#include <machine/resource.h> 4986232Stmm#include <machine/ofw_bus.h> 5086232Stmm 51117119Stmm#include <sparc64/pci/ofw_pci.h> 5286232Stmm#include <sparc64/isa/ofw_isa.h> 5386232Stmm 54117119Stmm#include "pcib_if.h" 55117119Stmm 5686232Stmm/* XXX: this only supports PCI as parent bus right now. */ 5786232Stmmint 5886232Stmmofw_isa_map_iorange(struct isa_ranges *range, int nrange, u_long *start, 5986232Stmm u_long *end) 6086232Stmm{ 6186232Stmm u_int64_t offs, cstart, cend; 6286232Stmm int i; 6386232Stmm 6486232Stmm for (i = 0; i < nrange; i++) { 6586232Stmm cstart = ((u_int64_t)range[i].child_hi << 32) | 6686232Stmm range[i].child_lo; 6786232Stmm cend = cstart + range[i].size; 6886232Stmm if (*start < cstart || *start > cend) 6986232Stmm continue; 7086232Stmm if (*end < cstart || *end > cend) { 7186232Stmm panic("ofw_isa_map_iorange: iorange crosses pci " 7286232Stmm "ranges (%#lx not in %#lx - %#lx)", *end, cstart, 7386232Stmm cend); 7486232Stmm } 7586232Stmm offs = (((u_int64_t)range[i].phys_mid << 32) | 7686232Stmm range[i].phys_lo); 7786232Stmm *start = *start + offs - cstart; 7886232Stmm *end = *end + offs - cstart; 7986232Stmm /* Isolate address space and find the right tag */ 8086232Stmm switch (ISA_RANGE_PS(&range[i])) { 8186232Stmm case PCI_CS_IO: 8286232Stmm return (SYS_RES_IOPORT); 8386232Stmm case PCI_CS_MEM32: 8486232Stmm return (SYS_RES_MEMORY); 8586232Stmm default: 8686232Stmm panic("ofw_isa_map_iorange: illegal space %x", 8786232Stmm ISA_RANGE_PS(&range[i])); 8886232Stmm break; 8986232Stmm } 9086232Stmm } 9186232Stmm panic("ofw_isa_map_iorange: could not map range %#lx - %#lx", 9286232Stmm *start, *end); 9386232Stmm} 94117119Stmm 95117119Stmm#ifdef OFW_NEWPCI 96117119Stmmofw_pci_intr_t 97117119Stmmofw_isa_route_intr(device_t bridge, phandle_t node, struct ofw_bus_iinfo *ii, 98117119Stmm ofw_isa_intr_t intr) 99117119Stmm{ 100117119Stmm struct isa_regs reg; 101117119Stmm u_int8_t maskbuf[sizeof(reg) + sizeof(intr)]; 102117119Stmm device_t pbridge; 103117119Stmm ofw_isa_intr_t mintr; 104117119Stmm 105117119Stmm pbridge = device_get_parent(device_get_parent(bridge)); 106117119Stmm /* 107117119Stmm * If we get a match from using the map, the resulting INO is 108117119Stmm * fully specified, so we may not continue to map. 109117119Stmm */ 110117119Stmm if (!ofw_bus_lookup_imap(node, ii, ®, sizeof(reg), 111117119Stmm &intr, sizeof(intr), &mintr, sizeof(mintr), maskbuf)) { 112117119Stmm /* Try routing at the parent bridge. */ 113117119Stmm mintr = PCIB_ROUTE_INTERRUPT(pbridge, bridge, intr); 114117119Stmm } 115117119Stmm return (mintr); 116117119Stmm} 117117119Stmm#endif /* OFW_NEWPCI */ 118