ofw_isa.c revision 190110
1139825Simp/*- 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 32153057Smarius#include <sys/cdefs.h> 33153057Smarius__FBSDID("$FreeBSD: head/sys/sparc64/isa/ofw_isa.c 190110 2009-03-19 20:54:15Z marius $"); 34153057Smarius 3586232Stmm/* 3686232Stmm * Helper functions which can be used in both ISA and EBus code. 3786232Stmm */ 3886232Stmm 3986232Stmm#include <sys/param.h> 4091966Stmm#include <sys/systm.h> 4186232Stmm#include <sys/bus.h> 4286232Stmm 43190110Smarius#include <dev/ofw/ofw_bus_subr.h> 44119338Simp#include <dev/ofw/openfirm.h> 4586232Stmm 46117119Stmm#include <machine/bus.h> 4786232Stmm#include <machine/resource.h> 4886232Stmm 49117119Stmm#include <sparc64/pci/ofw_pci.h> 5086232Stmm#include <sparc64/isa/ofw_isa.h> 5186232Stmm 52117119Stmm#include "pcib_if.h" 53117119Stmm 54128712Stmmint 55128712Stmmofw_isa_range_restype(struct isa_ranges *range) 56128712Stmm{ 57128712Stmm int ps = ISA_RANGE_PS(range); 58128712Stmm 59128712Stmm switch (ps) { 60153061Smarius case OFW_PCI_CS_IO: 61128712Stmm return (SYS_RES_IOPORT); 62153061Smarius case OFW_PCI_CS_MEM32: 63128712Stmm return (SYS_RES_MEMORY); 64128712Stmm default: 65128712Stmm panic("ofw_isa_range_restype: illegal space %x", ps); 66128712Stmm } 67128712Stmm 68128712Stmm} 69128712Stmm 7086232Stmm/* XXX: this only supports PCI as parent bus right now. */ 7186232Stmmint 72128712Stmmofw_isa_range_map(struct isa_ranges *range, int nrange, u_long *start, 73128712Stmm u_long *end, int *which) 7486232Stmm{ 75128712Stmm struct isa_ranges *r; 76153057Smarius uint64_t offs, cstart, cend; 7786232Stmm int i; 7886232Stmm 7986232Stmm for (i = 0; i < nrange; i++) { 80128712Stmm r = &range[i]; 81128712Stmm cstart = ISA_RANGE_CHILD(r); 82128712Stmm cend = cstart + r->size; 8386232Stmm if (*start < cstart || *start > cend) 8486232Stmm continue; 8586232Stmm if (*end < cstart || *end > cend) { 8686232Stmm panic("ofw_isa_map_iorange: iorange crosses pci " 8786232Stmm "ranges (%#lx not in %#lx - %#lx)", *end, cstart, 8886232Stmm cend); 8986232Stmm } 90128712Stmm offs = ISA_RANGE_PHYS(r); 9186232Stmm *start = *start + offs - cstart; 9286232Stmm *end = *end + offs - cstart; 93128712Stmm if (which != NULL) 94128712Stmm *which = i; 95128712Stmm return (ofw_isa_range_restype(r)); 9686232Stmm } 9786232Stmm panic("ofw_isa_map_iorange: could not map range %#lx - %#lx", 9886232Stmm *start, *end); 9986232Stmm} 100117119Stmm 101117119Stmmofw_pci_intr_t 102117119Stmmofw_isa_route_intr(device_t bridge, phandle_t node, struct ofw_bus_iinfo *ii, 103117119Stmm ofw_isa_intr_t intr) 104117119Stmm{ 105117119Stmm struct isa_regs reg; 106153057Smarius uint8_t maskbuf[sizeof(reg) + sizeof(intr)]; 107117119Stmm device_t pbridge; 108117119Stmm ofw_isa_intr_t mintr; 109117119Stmm 110117119Stmm pbridge = device_get_parent(device_get_parent(bridge)); 111117119Stmm /* 112117119Stmm * If we get a match from using the map, the resulting INO is 113117119Stmm * fully specified, so we may not continue to map. 114117119Stmm */ 115117119Stmm if (!ofw_bus_lookup_imap(node, ii, ®, sizeof(reg), 116117119Stmm &intr, sizeof(intr), &mintr, sizeof(mintr), maskbuf)) { 117117119Stmm /* Try routing at the parent bridge. */ 118117119Stmm mintr = PCIB_ROUTE_INTERRUPT(pbridge, bridge, intr); 119117119Stmm } 120117119Stmm return (mintr); 121117119Stmm} 122