ofw_isa.c revision 91966
186232Stmm/* 286232Stmm * Copyright (c) 1999, 2000 Matthew R. Green 386232Stmm * Copyright (c) 2001 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 91966 2002-03-09 22:00:30Z tmm $ 3286232Stmm */ 3386232Stmm 3486232Stmm/* 3586232Stmm * Helper functions which can be used in both ISA and EBus code. 3686232Stmm */ 3786232Stmm 3886232Stmm#include <sys/param.h> 3991966Stmm#include <sys/systm.h> 4086232Stmm#include <sys/bus.h> 4186232Stmm 4286232Stmm#include <ofw/openfirm.h> 4386232Stmm#include <ofw/ofw_pci.h> 4486232Stmm 4586232Stmm#include <machine/resource.h> 4686232Stmm#include <machine/ofw_bus.h> 4786232Stmm 4886232Stmm#include <sparc64/isa/ofw_isa.h> 4986232Stmm#include <sparc64/pci/ofw_pci.h> 5086232Stmm 5186232Stmm/* 5286232Stmm * This applies only for an ISA/EBus with an own interrupt-map property. 5386232Stmm */ 5486232Stmmint 5586232Stmmofw_isa_map_intr(struct isa_imap *imap, int nimap, struct isa_imap_msk *imapmsk, 5686232Stmm int intr, struct isa_regs *regs, int nregs) 5786232Stmm{ 5886232Stmm char regm[8]; 5986232Stmm 6086232Stmm return (ofw_bus_route_intr(intr, regs, sizeof(*regs), 8, nregs, 6186232Stmm imap, nimap, imapmsk, regm)); 6286232Stmm} 6386232Stmm 6486232Stmm/* XXX: this only supports PCI as parent bus right now. */ 6586232Stmmint 6686232Stmmofw_isa_map_iorange(struct isa_ranges *range, int nrange, u_long *start, 6786232Stmm u_long *end) 6886232Stmm{ 6986232Stmm u_int64_t offs, cstart, cend; 7086232Stmm int i; 7186232Stmm 7286232Stmm for (i = 0; i < nrange; i++) { 7386232Stmm cstart = ((u_int64_t)range[i].child_hi << 32) | 7486232Stmm range[i].child_lo; 7586232Stmm cend = cstart + range[i].size; 7686232Stmm if (*start < cstart || *start > cend) 7786232Stmm continue; 7886232Stmm if (*end < cstart || *end > cend) { 7986232Stmm panic("ofw_isa_map_iorange: iorange crosses pci " 8086232Stmm "ranges (%#lx not in %#lx - %#lx)", *end, cstart, 8186232Stmm cend); 8286232Stmm } 8386232Stmm offs = (((u_int64_t)range[i].phys_mid << 32) | 8486232Stmm range[i].phys_lo); 8586232Stmm *start = *start + offs - cstart; 8686232Stmm *end = *end + offs - cstart; 8786232Stmm /* Isolate address space and find the right tag */ 8886232Stmm switch (ISA_RANGE_PS(&range[i])) { 8986232Stmm case PCI_CS_IO: 9086232Stmm return (SYS_RES_IOPORT); 9186232Stmm case PCI_CS_MEM32: 9286232Stmm return (SYS_RES_MEMORY); 9386232Stmm default: 9486232Stmm panic("ofw_isa_map_iorange: illegal space %x", 9586232Stmm ISA_RANGE_PS(&range[i])); 9686232Stmm break; 9786232Stmm } 9886232Stmm } 9986232Stmm panic("ofw_isa_map_iorange: could not map range %#lx - %#lx", 10086232Stmm *start, *end); 10186232Stmm} 102