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/* $OpenBSD: pci_machdep.c,v 1.21 2017/09/08 05:36:51 deraadt Exp $ */
/* $NetBSD: pci_machdep.c,v 1.7 1996/11/19 04:57:32 cgd Exp $ */
/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: 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.
*/
/*
* Machine-specific functions for PCI autoconfiguration.
*/
#include <sys/param.h>
#include <sys/time.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/sysctl.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <uvm/uvm_extern.h>
#include <machine/cpu.h>
#include <dev/isa/isavar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/ppbreg.h>
#include "vga.h"
#if NVGA_PCI
#include <dev/pci/vga_pcivar.h>
#endif
#include "tga.h"
#if NTGA
#include <dev/pci/tgavar.h>
#endif
struct alpha_pci_chipset *alpha_pci_chipset;
void
pci_display_console(iot, memt, pc, bus, device, function)
bus_space_tag_t iot, memt;
pci_chipset_tag_t pc;
int bus, device, function;
{
pcitag_t tag;
pcireg_t id, class;
int match;
#if NVGA_PCI || NTGA
int nmatch;
#endif
int (*fn)(bus_space_tag_t, bus_space_tag_t, pci_chipset_tag_t,
int, int, int);
tag = pci_make_tag(pc, bus, device, function);
id = pci_conf_read(pc, tag, PCI_ID_REG);
if (id == 0 || id == 0xffffffff)
panic("pci_display_console: no device at %d/%d/%d",
bus, device, function);
class = pci_conf_read(pc, tag, PCI_CLASS_REG);
match = 0;
fn = NULL;
#if NVGA_PCI
nmatch = DEVICE_IS_VGA_PCI(class);
if (nmatch > match) {
match = nmatch;
fn = vga_pci_cnattach;
}
#endif
#if NTGA
nmatch = DEVICE_IS_TGA(class, id);
if (nmatch > match) {
match = nmatch;
fn = tga_cnattach;
}
#endif
if (fn != NULL)
(*fn)(iot, memt, pc, bus, device, function);
else
panic("pci_display_console: unconfigured device at %d/%d/%d",
bus, device, function);
}
int
alpha_sysctl_chipset(int *name, u_int namelen, char *where, size_t *sizep)
{
if (namelen != 1)
return (ENOTDIR);
if (alpha_pci_chipset == NULL)
return (EOPNOTSUPP);
switch (name[0]) {
case CPU_CHIPSET_TYPE:
return (sysctl_rdstring(where, sizep, NULL,
alpha_pci_chipset->pc_name));
case CPU_CHIPSET_BWX:
return (sysctl_rdint(where, sizep, NULL,
alpha_pci_chipset->pc_bwx));
case CPU_CHIPSET_MEM:
return (sysctl_rdquad(where, sizep, NULL,
alpha_pci_chipset->pc_mem));
case CPU_CHIPSET_DENSE:
return (sysctl_rdquad(where, sizep, NULL,
alpha_pci_chipset->pc_dense));
case CPU_CHIPSET_PORTS:
return (sysctl_rdquad(where, sizep, NULL,
alpha_pci_chipset->pc_ports));
case CPU_CHIPSET_HAE_MASK:
return (sysctl_rdquad(where, sizep, NULL,
alpha_pci_chipset->pc_hae_mask));
default:
return (EOPNOTSUPP);
}
/* NOTREACHED */
}
int
pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
{
if (pa->pa_intrpin == 0) /* No IRQ used. */
return 1;
if (!(1 <= pa->pa_intrpin && pa->pa_intrpin <= 4))
return 1;
return (*(pa->pa_pc)->pc_intr_map)(pa, ihp);
}
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