0fb6b9a8f8
Rather than an "iointr" routine that decomposes a vector into an IRQ, we maintain a vector table directly, hooking up each "iointr" routine at the correct vector. This also allows us to hook device interrupts up to specific vectors (c.f. Jensen). We can shave even more cycles off, here, and I will, but it requires some changes to the alpha_shared_intr stuff.
236 lines
6.8 KiB
C
236 lines
6.8 KiB
C
/* $NetBSD: pci_alphabook1.c,v 1.7 2001/07/27 00:25:20 thorpej Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
|
|
* NASA Ames Research Center.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
|
|
* All rights reserved.
|
|
*
|
|
* Authors: Jeffrey Hsu and Chris G. Demetriou
|
|
*
|
|
* Permission to use, copy, modify and distribute this software and
|
|
* its documentation is hereby granted, provided that both the copyright
|
|
* notice and this permission notice appear in all copies of the
|
|
* software, derivative works or modified versions, and any portions
|
|
* thereof, and that both notices appear in supporting documentation.
|
|
*
|
|
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
|
|
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
|
|
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
|
|
*
|
|
* Carnegie Mellon requests users of this software to return to
|
|
*
|
|
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
|
|
* School of Computer Science
|
|
* Carnegie Mellon University
|
|
* Pittsburgh PA 15213-3890
|
|
*
|
|
* any improvements or extensions that they make and grant Carnegie the
|
|
* rights to redistribute these changes.
|
|
*/
|
|
|
|
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
|
|
|
|
__KERNEL_RCSID(0, "$NetBSD: pci_alphabook1.c,v 1.7 2001/07/27 00:25:20 thorpej Exp $");
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/device.h>
|
|
|
|
#include <uvm/uvm_extern.h>
|
|
|
|
#include <machine/autoconf.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
|
|
#include <dev/isa/isavar.h>
|
|
#include <dev/pci/pcireg.h>
|
|
#include <dev/pci/pcivar.h>
|
|
|
|
#include <alpha/pci/lcavar.h>
|
|
|
|
#include <alpha/pci/pci_alphabook1.h>
|
|
#include <alpha/pci/siovar.h>
|
|
#include <alpha/pci/sioreg.h>
|
|
|
|
#include "sio.h"
|
|
|
|
int dec_alphabook1_intr_map __P((struct pci_attach_args *, pci_intr_handle_t *));
|
|
const char *dec_alphabook1_intr_string __P((void *, pci_intr_handle_t));
|
|
const struct evcnt *dec_alphabook1_intr_evcnt __P((void *, pci_intr_handle_t));
|
|
void *dec_alphabook1_intr_establish __P((void *, pci_intr_handle_t,
|
|
int, int (*func)(void *), void *));
|
|
void dec_alphabook1_intr_disestablish __P((void *, void *));
|
|
|
|
#define LCA_SIO_DEVICE 7 /* XXX */
|
|
|
|
void
|
|
pci_alphabook1_pickintr(lcp)
|
|
struct lca_config *lcp;
|
|
{
|
|
bus_space_tag_t iot = &lcp->lc_iot;
|
|
pci_chipset_tag_t pc = &lcp->lc_pc;
|
|
pcireg_t sioclass;
|
|
int sioII;
|
|
|
|
/* XXX MAGIC NUMBER */
|
|
sioclass = pci_conf_read(pc, pci_make_tag(pc, 0, LCA_SIO_DEVICE, 0),
|
|
PCI_CLASS_REG);
|
|
sioII = (sioclass & 0xff) >= 3;
|
|
|
|
if (!sioII)
|
|
printf("WARNING: SIO NOT SIO II... NO BETS...\n");
|
|
|
|
pc->pc_intr_v = lcp;
|
|
pc->pc_intr_map = dec_alphabook1_intr_map;
|
|
pc->pc_intr_string = dec_alphabook1_intr_string;
|
|
pc->pc_intr_evcnt = dec_alphabook1_intr_evcnt;
|
|
pc->pc_intr_establish = dec_alphabook1_intr_establish;
|
|
pc->pc_intr_disestablish = dec_alphabook1_intr_disestablish;
|
|
|
|
/* Not supported on AlphaBook. */
|
|
pc->pc_pciide_compat_intr_establish = NULL;
|
|
|
|
#if NSIO
|
|
sio_intr_setup(pc, iot);
|
|
#else
|
|
panic("pci_alphabook1_pickintr: no I/O interrupt handler (no sio)");
|
|
#endif
|
|
}
|
|
|
|
int
|
|
dec_alphabook1_intr_map(pa, ihp)
|
|
struct pci_attach_args *pa;
|
|
pci_intr_handle_t *ihp;
|
|
{
|
|
pcitag_t bustag = pa->pa_intrtag;
|
|
int buspin = pa->pa_intrpin;
|
|
pci_chipset_tag_t pc = pa->pa_pc;
|
|
int device, irq;
|
|
|
|
if (buspin == 0) {
|
|
/* No IRQ used. */
|
|
return 1;
|
|
}
|
|
if (buspin > 4) {
|
|
printf("dec_alphabook1_intr_map: bad interrupt pin %d\n",
|
|
buspin);
|
|
return 1;
|
|
}
|
|
|
|
alpha_pci_decompose_tag(pc, bustag, NULL, &device, NULL);
|
|
|
|
/*
|
|
* There is only one interrupting PCI device on the AlphaBook: an
|
|
* NCR SCSI at device 6. Devices 7 and 8 are the SIO and a
|
|
* Cirrus PD6729 PCMCIA controller. There are no option slots
|
|
* available.
|
|
*
|
|
* NOTE! Apparently, there was a later AlphaBook which uses
|
|
* a different interrupt scheme, and has a built-in Tulip Ethernet
|
|
* interface! We do not handle that here!
|
|
*/
|
|
|
|
switch (device) {
|
|
case 6: /* NCR SCSI */
|
|
irq = 14;
|
|
break;
|
|
|
|
default:
|
|
printf("dec_alphabook1_intr_map: weird device number %d\n",
|
|
device);
|
|
return 1;
|
|
}
|
|
|
|
*ihp = irq;
|
|
return (0);
|
|
}
|
|
|
|
const char *
|
|
dec_alphabook1_intr_string(lcv, ih)
|
|
void *lcv;
|
|
pci_intr_handle_t ih;
|
|
{
|
|
#if 0
|
|
struct lca_config *lcp = lcv;
|
|
#endif
|
|
|
|
return sio_intr_string(NULL /*XXX*/, ih);
|
|
}
|
|
|
|
const struct evcnt *
|
|
dec_alphabook1_intr_evcnt(lcv, ih)
|
|
void *lcv;
|
|
pci_intr_handle_t ih;
|
|
{
|
|
#if 0
|
|
struct lca_config *lcp = lcv;
|
|
#endif
|
|
|
|
return sio_intr_evcnt(NULL /*XXX*/, ih);
|
|
}
|
|
|
|
void *
|
|
dec_alphabook1_intr_establish(lcv, ih, level, func, arg)
|
|
void *lcv, *arg;
|
|
pci_intr_handle_t ih;
|
|
int level;
|
|
int (*func) __P((void *));
|
|
{
|
|
#if 0
|
|
struct lca_config *lcp = lcv;
|
|
#endif
|
|
|
|
return sio_intr_establish(NULL /*XXX*/, ih, IST_LEVEL, level, func,
|
|
arg);
|
|
}
|
|
|
|
void
|
|
dec_alphabook1_intr_disestablish(lcv, cookie)
|
|
void *lcv, *cookie;
|
|
{
|
|
#if 0
|
|
struct lca_config *lcp = lcv;
|
|
#endif
|
|
|
|
sio_intr_disestablish(NULL /*XXX*/, cookie);
|
|
}
|