1214501Srpaulo/* $NetBSD: pci_eb64plus.c,v 1.29 2021/07/04 22:42:36 thorpej Exp $ */ 2214501Srpaulo 3214501Srpaulo/*- 4214501Srpaulo * Copyright (c) 1998 The NetBSD Foundation, Inc. 5214501Srpaulo * All rights reserved. 6252190Srpaulo * 7252190Srpaulo * This code is derived from software contributed to The NetBSD Foundation 8214501Srpaulo * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9214501Srpaulo * NASA Ames Research Center. 10214501Srpaulo * 11214501Srpaulo * Redistribution and use in source and binary forms, with or without 12214501Srpaulo * modification, are permitted provided that the following conditions 13252190Srpaulo * are met: 14252190Srpaulo * 1. Redistributions of source code must retain the above copyright 15252190Srpaulo * notice, this list of conditions and the following disclaimer. 16214501Srpaulo * 2. Redistributions in binary form must reproduce the above copyright 17214501Srpaulo * notice, this list of conditions and the following disclaimer in the 18214501Srpaulo * documentation and/or other materials provided with the distribution. 19214501Srpaulo * 20214501Srpaulo * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21214501Srpaulo * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22214501Srpaulo * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23214501Srpaulo * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24214501Srpaulo * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25214501Srpaulo * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26214501Srpaulo * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27214501Srpaulo * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28214501Srpaulo * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29252190Srpaulo * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30252190Srpaulo * POSSIBILITY OF SUCH DAMAGE. 31252190Srpaulo */ 32214501Srpaulo 33214501Srpaulo/* 34214501Srpaulo * Copyright (c) 1995, 1996 Carnegie-Mellon University. 35214501Srpaulo * All rights reserved. 36214501Srpaulo * 37214501Srpaulo * Author: Chris G. Demetriou 38214501Srpaulo * 39214501Srpaulo * Permission to use, copy, modify and distribute this software and 40214501Srpaulo * its documentation is hereby granted, provided that both the copyright 41214501Srpaulo * notice and this permission notice appear in all copies of the 42252190Srpaulo * software, derivative works or modified versions, and any portions 43214501Srpaulo * thereof, and that both notices appear in supporting documentation. 44214501Srpaulo * 45214501Srpaulo * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 46214501Srpaulo * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 47214501Srpaulo * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 48214501Srpaulo * 49214501Srpaulo * Carnegie Mellon requests users of this software to return to 50214501Srpaulo * 51214501Srpaulo * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 52214501Srpaulo * School of Computer Science 53214501Srpaulo * Carnegie Mellon University 54214501Srpaulo * Pittsburgh PA 15213-3890 55214501Srpaulo * 56214501Srpaulo * any improvements or extensions that they make and grant Carnegie the 57214501Srpaulo * rights to redistribute these changes. 58214501Srpaulo */ 59214501Srpaulo 60214501Srpaulo#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 61214501Srpaulo 62252190Srpaulo__KERNEL_RCSID(0, "$NetBSD: pci_eb64plus.c,v 1.29 2021/07/04 22:42:36 thorpej Exp $"); 63252190Srpaulo 64214501Srpaulo#include <sys/types.h> 65252190Srpaulo#include <sys/param.h> 66252190Srpaulo#include <sys/time.h> 67252190Srpaulo#include <sys/systm.h> 68252190Srpaulo#include <sys/errno.h> 69252190Srpaulo#include <sys/device.h> 70252190Srpaulo#include <sys/syslog.h> 71252190Srpaulo 72252190Srpaulo#include <machine/autoconf.h> 73252190Srpaulo#include <machine/rpb.h> 74252190Srpaulo 75252190Srpaulo#include <dev/pci/pcireg.h> 76252190Srpaulo#include <dev/pci/pcivar.h> 77252190Srpaulo 78252190Srpaulo#include <alpha/pci/apecsreg.h> 79252190Srpaulo#include <alpha/pci/apecsvar.h> 80252190Srpaulo 81252190Srpaulo#include "sio.h" 82252190Srpaulo#if NSIO 83252190Srpaulo#include <alpha/pci/siovar.h> 84252190Srpaulo#endif 85252190Srpaulo 86214501Srpaulo#define EB64PLUS_MAX_IRQ 32 87214501Srpaulo#define PCI_STRAY_MAX 5 88214501Srpaulo 89214501Srpaulostatic bus_space_tag_t eb64plus_intrgate_iot; 90214501Srpaulostatic bus_space_handle_t eb64plus_intrgate_ioh; 91214501Srpaulo 92214501Srpaulo/* See pci_eb64plus_intr.s */ 93214501Srpauloextern void eb64plus_intr_enable(pci_chipset_tag_t, int irq); 94214501Srpauloextern void eb64plus_intr_disable(pci_chipset_tag_t, int irq); 95214501Srpaulo 96214501Srpaulostatic void 97214501Srpaulopci_eb64plus_pickintr(void *core, bus_space_tag_t iot, bus_space_tag_t memt, 98214501Srpaulo pci_chipset_tag_t pc) 99214501Srpaulo{ 100214501Srpaulo int i; 101214501Srpaulo 102252190Srpaulo pc->pc_intr_v = core; 103252190Srpaulo pc->pc_intr_map = alpha_pci_generic_intr_map; 104252190Srpaulo pc->pc_intr_string = alpha_pci_generic_intr_string; 105252190Srpaulo pc->pc_intr_evcnt = alpha_pci_generic_intr_evcnt; 106252190Srpaulo pc->pc_intr_establish = alpha_pci_generic_intr_establish; 107252190Srpaulo pc->pc_intr_disestablish = alpha_pci_generic_intr_disestablish; 108252190Srpaulo 109214501Srpaulo /* Not supported on the EB64+. */ 110214501Srpaulo pc->pc_pciide_compat_intr_establish = NULL; 111214501Srpaulo 112214501Srpaulo eb64plus_intrgate_iot = iot; 113214501Srpaulo if (bus_space_map(eb64plus_intrgate_iot, 0x804, 3, 0, 114252190Srpaulo &eb64plus_intrgate_ioh) != 0) 115252190Srpaulo panic("pci_eb64plus_pickintr: couldn't map interrupt PLD"); 116252190Srpaulo 117252190Srpaulo pc->pc_intr_desc = "eb64+"; 118252190Srpaulo pc->pc_vecbase = 0x900; 119252190Srpaulo pc->pc_nirq = EB64PLUS_MAX_IRQ; 120214501Srpaulo 121252190Srpaulo pc->pc_intr_enable = eb64plus_intr_enable; 122252190Srpaulo pc->pc_intr_disable = eb64plus_intr_disable; 123252190Srpaulo 124252190Srpaulo for (i = 0; i < EB64PLUS_MAX_IRQ; i++) { 125252190Srpaulo eb64plus_intr_disable(pc, i); 126214501Srpaulo } 127214501Srpaulo 128214501Srpaulo alpha_pci_intr_alloc(pc, PCI_STRAY_MAX); 129214501Srpaulo 130214501Srpaulo#if NSIO 131214501Srpaulo sio_intr_setup(pc, iot); 132214501Srpaulo#endif 133214501Srpaulo} 134214501SrpauloALPHA_PCI_INTR_INIT(ST_EB64P, pci_eb64plus_pickintr) 135214501Srpaulo 136214501Srpaulo#if 0 /* THIS DOES NOT WORK! see pci_eb64plus_intr.S. */ 137214501Srpaulouint8_t eb64plus_intr_mask[3] = { 0xff, 0xff, 0xff }; 138214501Srpaulo 139214501Srpaulovoid 140214501Srpauloeb64plus_intr_enable(pci_chipset_tag_t pc __unused, int irq) 141252190Srpaulo{ 142252190Srpaulo int byte = (irq / 8), bit = (irq % 8); 143252190Srpaulo 144252190Srpaulo#if 1 145214501Srpaulo printf("eb64plus_intr_enable: enabling %d (%d:%d)\n", irq, byte, bit); 146214501Srpaulo#endif 147214501Srpaulo eb64plus_intr_mask[byte] &= ~(1 << bit); 148214501Srpaulo 149214501Srpaulo bus_space_write_1(eb64plus_intrgate_iot, eb64plus_intrgate_ioh, byte, 150214501Srpaulo eb64plus_intr_mask[byte]); 151214501Srpaulo} 152214501Srpaulo 153214501Srpaulovoid 154214501Srpauloeb64plus_intr_disable(pci_chipset_tag_t pc __unused, int irq) 155214501Srpaulo{ 156214501Srpaulo int byte = (irq / 8), bit = (irq % 8); 157214501Srpaulo 158214501Srpaulo#if 1 159214501Srpaulo printf("eb64plus_intr_disable: disabling %d (%d:%d)\n", irq, byte, bit); 160214501Srpaulo#endif 161214501Srpaulo eb64plus_intr_mask[byte] |= (1 << bit); 162214501Srpaulo 163214501Srpaulo bus_space_write_1(eb64plus_intrgate_iot, eb64plus_intrgate_ioh, byte, 164214501Srpaulo eb64plus_intr_mask[byte]); 165214501Srpaulo} 166214501Srpaulo#endif 167214501Srpaulo