4b7ec27007
one. Interestingly, these are actually the default for quite some time (bus_generic_driver_added(9) since r52045 and bus_generic_print_child(9) since r52045) but even recently added device drivers do this unnecessarily. Discussed with: jhb, marcel - While at it, use DEVMETHOD_END. Discussed with: jhb - Also while at it, use __FBSDID.
719 lines
18 KiB
C
719 lines
18 KiB
C
/*-
|
|
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
|
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* All rights reserved.
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*
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|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
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|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice unmodified, 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.
|
|
*
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|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
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* 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 AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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|
* 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
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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|
|
|
#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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|
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#include "opt_cpu.h"
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|
|
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/rman.h>
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#include <sys/sysctl.h>
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|
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|
#include <dev/pci/pcivar.h>
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|
#include <dev/pci/pcireg.h>
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|
#include <dev/pci/pcib_private.h>
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|
#include <isa/isavar.h>
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|
#ifdef CPU_ELAN
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|
#include <machine/md_var.h>
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|
#endif
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|
#include <machine/legacyvar.h>
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|
#include <machine/pci_cfgreg.h>
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|
#include <machine/resource.h>
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|
|
|
#include "pcib_if.h"
|
|
|
|
int
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|
legacy_pcib_maxslots(device_t dev)
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|
{
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|
return 31;
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|
}
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|
|
|
/* read configuration space register */
|
|
|
|
uint32_t
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legacy_pcib_read_config(device_t dev, u_int bus, u_int slot, u_int func,
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|
u_int reg, int bytes)
|
|
{
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|
return(pci_cfgregread(bus, slot, func, reg, bytes));
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|
}
|
|
|
|
/* write configuration space register */
|
|
|
|
void
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|
legacy_pcib_write_config(device_t dev, u_int bus, u_int slot, u_int func,
|
|
u_int reg, uint32_t data, int bytes)
|
|
{
|
|
pci_cfgregwrite(bus, slot, func, reg, data, bytes);
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|
}
|
|
|
|
/* route interrupt */
|
|
|
|
static int
|
|
legacy_pcib_route_interrupt(device_t pcib, device_t dev, int pin)
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|
{
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|
|
|
#ifdef __HAVE_PIR
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|
return (pci_pir_route_interrupt(pci_get_bus(dev), pci_get_slot(dev),
|
|
pci_get_function(dev), pin));
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|
#else
|
|
/* No routing possible */
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|
return (PCI_INVALID_IRQ);
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|
#endif
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|
}
|
|
|
|
/* Pass MSI requests up to the nexus. */
|
|
|
|
static int
|
|
legacy_pcib_alloc_msi(device_t pcib, device_t dev, int count, int maxcount,
|
|
int *irqs)
|
|
{
|
|
device_t bus;
|
|
|
|
bus = device_get_parent(pcib);
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|
return (PCIB_ALLOC_MSI(device_get_parent(bus), dev, count, maxcount,
|
|
irqs));
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|
}
|
|
|
|
static int
|
|
legacy_pcib_alloc_msix(device_t pcib, device_t dev, int *irq)
|
|
{
|
|
device_t bus;
|
|
|
|
bus = device_get_parent(pcib);
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|
return (PCIB_ALLOC_MSIX(device_get_parent(bus), dev, irq));
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|
}
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|
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|
static int
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|
legacy_pcib_map_msi(device_t pcib, device_t dev, int irq, uint64_t *addr,
|
|
uint32_t *data)
|
|
{
|
|
device_t bus;
|
|
|
|
bus = device_get_parent(pcib);
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return (PCIB_MAP_MSI(device_get_parent(bus), dev, irq, addr, data));
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|
}
|
|
|
|
static const char *
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|
legacy_pcib_is_host_bridge(int bus, int slot, int func,
|
|
uint32_t id, uint8_t class, uint8_t subclass,
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|
uint8_t *busnum)
|
|
{
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|
#ifdef __i386__
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const char *s = NULL;
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static uint8_t pxb[4]; /* hack for 450nx */
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|
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|
*busnum = 0;
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|
|
|
switch (id) {
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|
case 0x12258086:
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|
s = "Intel 824?? host to PCI bridge";
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|
/* XXX This is a guess */
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|
/* *busnum = legacy_pcib_read_config(0, bus, slot, func, 0x41, 1); */
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|
*busnum = bus;
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|
break;
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|
case 0x71208086:
|
|
s = "Intel 82810 (i810 GMCH) Host To Hub bridge";
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|
break;
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|
case 0x71228086:
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|
s = "Intel 82810-DC100 (i810-DC100 GMCH) Host To Hub bridge";
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|
break;
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|
case 0x71248086:
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|
s = "Intel 82810E (i810E GMCH) Host To Hub bridge";
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|
break;
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|
case 0x11308086:
|
|
s = "Intel 82815 (i815 GMCH) Host To Hub bridge";
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|
break;
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|
case 0x71808086:
|
|
s = "Intel 82443LX (440 LX) host to PCI bridge";
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|
break;
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|
case 0x71908086:
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|
s = "Intel 82443BX (440 BX) host to PCI bridge";
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break;
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case 0x71928086:
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s = "Intel 82443BX host to PCI bridge (AGP disabled)";
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break;
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|
case 0x71948086:
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s = "Intel 82443MX host to PCI bridge";
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break;
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|
case 0x71a08086:
|
|
s = "Intel 82443GX host to PCI bridge";
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|
break;
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|
case 0x71a18086:
|
|
s = "Intel 82443GX host to AGP bridge";
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|
break;
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|
case 0x71a28086:
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|
s = "Intel 82443GX host to PCI bridge (AGP disabled)";
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|
break;
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|
case 0x84c48086:
|
|
s = "Intel 82454KX/GX (Orion) host to PCI bridge";
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|
*busnum = legacy_pcib_read_config(0, bus, slot, func, 0x4a, 1);
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break;
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|
case 0x84ca8086:
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|
/*
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|
* For the 450nx chipset, there is a whole bundle of
|
|
* things pretending to be host bridges. The MIOC will
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|
* be seen first and isn't really a pci bridge (the
|
|
* actual busses are attached to the PXB's). We need to
|
|
* read the registers of the MIOC to figure out the
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|
* bus numbers for the PXB channels.
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|
*
|
|
* Since the MIOC doesn't have a pci bus attached, we
|
|
* pretend it wasn't there.
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|
*/
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|
pxb[0] = legacy_pcib_read_config(0, bus, slot, func,
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0xd0, 1); /* BUSNO[0] */
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pxb[1] = legacy_pcib_read_config(0, bus, slot, func,
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|
0xd1, 1) + 1; /* SUBA[0]+1 */
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|
pxb[2] = legacy_pcib_read_config(0, bus, slot, func,
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|
0xd3, 1); /* BUSNO[1] */
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|
pxb[3] = legacy_pcib_read_config(0, bus, slot, func,
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|
0xd4, 1) + 1; /* SUBA[1]+1 */
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|
return NULL;
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case 0x84cb8086:
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|
switch (slot) {
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|
case 0x12:
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|
s = "Intel 82454NX PXB#0, Bus#A";
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|
*busnum = pxb[0];
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|
break;
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|
case 0x13:
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|
s = "Intel 82454NX PXB#0, Bus#B";
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|
*busnum = pxb[1];
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|
break;
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|
case 0x14:
|
|
s = "Intel 82454NX PXB#1, Bus#A";
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|
*busnum = pxb[2];
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|
break;
|
|
case 0x15:
|
|
s = "Intel 82454NX PXB#1, Bus#B";
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|
*busnum = pxb[3];
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|
break;
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|
}
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|
break;
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|
case 0x1A308086:
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|
s = "Intel 82845 Host to PCI bridge";
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|
break;
|
|
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|
/* AMD -- vendor 0x1022 */
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|
case 0x30001022:
|
|
s = "AMD Elan SC520 host to PCI bridge";
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|
#ifdef CPU_ELAN
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|
init_AMD_Elan_sc520();
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|
#else
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|
printf(
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|
"*** WARNING: missing CPU_ELAN -- timekeeping may be wrong\n");
|
|
#endif
|
|
break;
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|
case 0x70061022:
|
|
s = "AMD-751 host to PCI bridge";
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|
break;
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|
case 0x700e1022:
|
|
s = "AMD-761 host to PCI bridge";
|
|
break;
|
|
|
|
/* SiS -- vendor 0x1039 */
|
|
case 0x04961039:
|
|
s = "SiS 85c496";
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|
break;
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|
case 0x04061039:
|
|
s = "SiS 85c501";
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|
break;
|
|
case 0x06011039:
|
|
s = "SiS 85c601";
|
|
break;
|
|
case 0x55911039:
|
|
s = "SiS 5591 host to PCI bridge";
|
|
break;
|
|
case 0x00011039:
|
|
s = "SiS 5591 host to AGP bridge";
|
|
break;
|
|
|
|
/* VLSI -- vendor 0x1004 */
|
|
case 0x00051004:
|
|
s = "VLSI 82C592 Host to PCI bridge";
|
|
break;
|
|
|
|
/* XXX Here is MVP3, I got the datasheet but NO M/B to test it */
|
|
/* totally. Please let me know if anything wrong. -F */
|
|
/* XXX need info on the MVP3 -- any takers? */
|
|
case 0x05981106:
|
|
s = "VIA 82C598MVP (Apollo MVP3) host bridge";
|
|
break;
|
|
|
|
/* AcerLabs -- vendor 0x10b9 */
|
|
/* Funny : The datasheet told me vendor id is "10b8",sub-vendor */
|
|
/* id is '10b9" but the register always shows "10b9". -Foxfair */
|
|
case 0x154110b9:
|
|
s = "AcerLabs M1541 (Aladdin-V) PCI host bridge";
|
|
break;
|
|
|
|
/* OPTi -- vendor 0x1045 */
|
|
case 0xc7011045:
|
|
s = "OPTi 82C700 host to PCI bridge";
|
|
break;
|
|
case 0xc8221045:
|
|
s = "OPTi 82C822 host to PCI Bridge";
|
|
break;
|
|
|
|
/* ServerWorks -- vendor 0x1166 */
|
|
case 0x00051166:
|
|
s = "ServerWorks NB6536 2.0HE host to PCI bridge";
|
|
*busnum = legacy_pcib_read_config(0, bus, slot, func, 0x44, 1);
|
|
break;
|
|
|
|
case 0x00061166:
|
|
/* FALLTHROUGH */
|
|
case 0x00081166:
|
|
/* FALLTHROUGH */
|
|
case 0x02011166:
|
|
/* FALLTHROUGH */
|
|
case 0x010f1014: /* IBM re-badged ServerWorks chipset */
|
|
s = "ServerWorks host to PCI bridge";
|
|
*busnum = legacy_pcib_read_config(0, bus, slot, func, 0x44, 1);
|
|
break;
|
|
|
|
case 0x00091166:
|
|
s = "ServerWorks NB6635 3.0LE host to PCI bridge";
|
|
*busnum = legacy_pcib_read_config(0, bus, slot, func, 0x44, 1);
|
|
break;
|
|
|
|
case 0x00101166:
|
|
s = "ServerWorks CIOB30 host to PCI bridge";
|
|
*busnum = legacy_pcib_read_config(0, bus, slot, func, 0x44, 1);
|
|
break;
|
|
|
|
case 0x00111166:
|
|
/* FALLTHROUGH */
|
|
case 0x03021014: /* IBM re-badged ServerWorks chipset */
|
|
s = "ServerWorks CMIC-HE host to PCI-X bridge";
|
|
*busnum = legacy_pcib_read_config(0, bus, slot, func, 0x44, 1);
|
|
break;
|
|
|
|
/* XXX unknown chipset, but working */
|
|
case 0x00171166:
|
|
/* FALLTHROUGH */
|
|
case 0x01011166:
|
|
case 0x01101166:
|
|
case 0x02251166:
|
|
s = "ServerWorks host to PCI bridge(unknown chipset)";
|
|
*busnum = legacy_pcib_read_config(0, bus, slot, func, 0x44, 1);
|
|
break;
|
|
|
|
/* Compaq/HP -- vendor 0x0e11 */
|
|
case 0x60100e11:
|
|
s = "Compaq/HP Model 6010 HotPlug PCI Bridge";
|
|
*busnum = legacy_pcib_read_config(0, bus, slot, func, 0xc8, 1);
|
|
break;
|
|
|
|
/* Integrated Micro Solutions -- vendor 0x10e0 */
|
|
case 0x884910e0:
|
|
s = "Integrated Micro Solutions VL Bridge";
|
|
break;
|
|
|
|
default:
|
|
if (class == PCIC_BRIDGE && subclass == PCIS_BRIDGE_HOST)
|
|
s = "Host to PCI bridge";
|
|
break;
|
|
}
|
|
|
|
return s;
|
|
#else
|
|
const char *s = NULL;
|
|
|
|
*busnum = 0;
|
|
if (class == PCIC_BRIDGE && subclass == PCIS_BRIDGE_HOST)
|
|
s = "Host to PCI bridge";
|
|
return s;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Scan the first pci bus for host-pci bridges and add pcib instances
|
|
* to the nexus for each bridge.
|
|
*/
|
|
static void
|
|
legacy_pcib_identify(driver_t *driver, device_t parent)
|
|
{
|
|
int bus, slot, func;
|
|
uint8_t hdrtype;
|
|
int found = 0;
|
|
int pcifunchigh;
|
|
int found824xx = 0;
|
|
int found_orion = 0;
|
|
device_t child;
|
|
devclass_t pci_devclass;
|
|
|
|
if (pci_cfgregopen() == 0)
|
|
return;
|
|
/*
|
|
* Check to see if we haven't already had a PCI bus added
|
|
* via some other means. If we have, bail since otherwise
|
|
* we're going to end up duplicating it.
|
|
*/
|
|
if ((pci_devclass = devclass_find("pci")) &&
|
|
devclass_get_device(pci_devclass, 0))
|
|
return;
|
|
|
|
|
|
bus = 0;
|
|
retry:
|
|
for (slot = 0; slot <= PCI_SLOTMAX; slot++) {
|
|
func = 0;
|
|
hdrtype = legacy_pcib_read_config(0, bus, slot, func,
|
|
PCIR_HDRTYPE, 1);
|
|
/*
|
|
* When enumerating bus devices, the standard says that
|
|
* one should check the header type and ignore the slots whose
|
|
* header types that the software doesn't know about. We use
|
|
* this to filter out devices.
|
|
*/
|
|
if ((hdrtype & PCIM_HDRTYPE) > PCI_MAXHDRTYPE)
|
|
continue;
|
|
if ((hdrtype & PCIM_MFDEV) &&
|
|
(!found_orion || hdrtype != 0xff))
|
|
pcifunchigh = PCI_FUNCMAX;
|
|
else
|
|
pcifunchigh = 0;
|
|
for (func = 0; func <= pcifunchigh; func++) {
|
|
/*
|
|
* Read the IDs and class from the device.
|
|
*/
|
|
uint32_t id;
|
|
uint8_t class, subclass, busnum;
|
|
const char *s;
|
|
device_t *devs;
|
|
int ndevs, i;
|
|
|
|
id = legacy_pcib_read_config(0, bus, slot, func,
|
|
PCIR_DEVVENDOR, 4);
|
|
if (id == -1)
|
|
continue;
|
|
class = legacy_pcib_read_config(0, bus, slot, func,
|
|
PCIR_CLASS, 1);
|
|
subclass = legacy_pcib_read_config(0, bus, slot, func,
|
|
PCIR_SUBCLASS, 1);
|
|
|
|
s = legacy_pcib_is_host_bridge(bus, slot, func,
|
|
id, class, subclass,
|
|
&busnum);
|
|
if (s == NULL)
|
|
continue;
|
|
|
|
/*
|
|
* Check to see if the physical bus has already
|
|
* been seen. Eg: hybrid 32 and 64 bit host
|
|
* bridges to the same logical bus.
|
|
*/
|
|
if (device_get_children(parent, &devs, &ndevs) == 0) {
|
|
for (i = 0; s != NULL && i < ndevs; i++) {
|
|
if (strcmp(device_get_name(devs[i]),
|
|
"pcib") != 0)
|
|
continue;
|
|
if (legacy_get_pcibus(devs[i]) == busnum)
|
|
s = NULL;
|
|
}
|
|
free(devs, M_TEMP);
|
|
}
|
|
|
|
if (s == NULL)
|
|
continue;
|
|
/*
|
|
* Add at priority 100 to make sure we
|
|
* go after any motherboard resources
|
|
*/
|
|
child = BUS_ADD_CHILD(parent, 100,
|
|
"pcib", busnum);
|
|
device_set_desc(child, s);
|
|
legacy_set_pcibus(child, busnum);
|
|
|
|
found = 1;
|
|
if (id == 0x12258086)
|
|
found824xx = 1;
|
|
if (id == 0x84c48086)
|
|
found_orion = 1;
|
|
}
|
|
}
|
|
if (found824xx && bus == 0) {
|
|
bus++;
|
|
goto retry;
|
|
}
|
|
|
|
/*
|
|
* Make sure we add at least one bridge since some old
|
|
* hardware doesn't actually have a host-pci bridge device.
|
|
* Note that pci_cfgregopen() thinks we have PCI devices..
|
|
*/
|
|
if (!found) {
|
|
if (bootverbose)
|
|
printf(
|
|
"legacy_pcib_identify: no bridge found, adding pcib0 anyway\n");
|
|
child = BUS_ADD_CHILD(parent, 100, "pcib", 0);
|
|
legacy_set_pcibus(child, 0);
|
|
}
|
|
}
|
|
|
|
static int
|
|
legacy_pcib_probe(device_t dev)
|
|
{
|
|
|
|
if (pci_cfgregopen() == 0)
|
|
return ENXIO;
|
|
return -100;
|
|
}
|
|
|
|
static int
|
|
legacy_pcib_attach(device_t dev)
|
|
{
|
|
#ifdef __HAVE_PIR
|
|
device_t pir;
|
|
#endif
|
|
int bus;
|
|
|
|
bus = pcib_get_bus(dev);
|
|
#ifdef __HAVE_PIR
|
|
/*
|
|
* Look for a PCI BIOS interrupt routing table as that will be
|
|
* our method of routing interrupts if we have one.
|
|
*/
|
|
if (pci_pir_probe(bus, 0)) {
|
|
pir = BUS_ADD_CHILD(device_get_parent(dev), 0, "pir", 0);
|
|
if (pir != NULL)
|
|
device_probe_and_attach(pir);
|
|
}
|
|
#endif
|
|
device_add_child(dev, "pci", bus);
|
|
return bus_generic_attach(dev);
|
|
}
|
|
|
|
int
|
|
legacy_pcib_read_ivar(device_t dev, device_t child, int which,
|
|
uintptr_t *result)
|
|
{
|
|
|
|
switch (which) {
|
|
case PCIB_IVAR_DOMAIN:
|
|
*result = 0;
|
|
return 0;
|
|
case PCIB_IVAR_BUS:
|
|
*result = legacy_get_pcibus(dev);
|
|
return 0;
|
|
}
|
|
return ENOENT;
|
|
}
|
|
|
|
int
|
|
legacy_pcib_write_ivar(device_t dev, device_t child, int which,
|
|
uintptr_t value)
|
|
{
|
|
|
|
switch (which) {
|
|
case PCIB_IVAR_DOMAIN:
|
|
return EINVAL;
|
|
case PCIB_IVAR_BUS:
|
|
legacy_set_pcibus(dev, value);
|
|
return 0;
|
|
}
|
|
return ENOENT;
|
|
}
|
|
|
|
/*
|
|
* Helper routine for x86 Host-PCI bridge driver resource allocation.
|
|
* This is used to adjust the start address of wildcard allocation
|
|
* requests to avoid low addresses that are known to be problematic.
|
|
*
|
|
* If no memory preference is given, use upper 32MB slot most BIOSes
|
|
* use for their memory window. This is typically only used on older
|
|
* laptops that don't have PCI busses behind a PCI bridge, so assuming
|
|
* > 32MB is likely OK.
|
|
*
|
|
* However, this can cause problems for other chipsets, so we make
|
|
* this tunable by hw.pci.host_mem_start.
|
|
*/
|
|
SYSCTL_DECL(_hw_pci);
|
|
|
|
static unsigned long host_mem_start = 0x80000000;
|
|
TUNABLE_ULONG("hw.pci.host_mem_start", &host_mem_start);
|
|
SYSCTL_ULONG(_hw_pci, OID_AUTO, host_mem_start, CTLFLAG_RDTUN, &host_mem_start,
|
|
0, "Limit the host bridge memory to being above this address.");
|
|
|
|
u_long
|
|
hostb_alloc_start(int type, u_long start, u_long end, u_long count)
|
|
{
|
|
|
|
if (start + count - 1 != end) {
|
|
if (type == SYS_RES_MEMORY && start < host_mem_start)
|
|
start = host_mem_start;
|
|
if (type == SYS_RES_IOPORT && start < 0x1000)
|
|
start = 0x1000;
|
|
}
|
|
return (start);
|
|
}
|
|
|
|
struct resource *
|
|
legacy_pcib_alloc_resource(device_t dev, device_t child, int type, int *rid,
|
|
u_long start, u_long end, u_long count, u_int flags)
|
|
{
|
|
|
|
start = hostb_alloc_start(type, start, end, count);
|
|
return (bus_generic_alloc_resource(dev, child, type, rid, start, end,
|
|
count, flags));
|
|
}
|
|
|
|
static device_method_t legacy_pcib_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_identify, legacy_pcib_identify),
|
|
DEVMETHOD(device_probe, legacy_pcib_probe),
|
|
DEVMETHOD(device_attach, legacy_pcib_attach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
DEVMETHOD(device_suspend, bus_generic_suspend),
|
|
DEVMETHOD(device_resume, bus_generic_resume),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_read_ivar, legacy_pcib_read_ivar),
|
|
DEVMETHOD(bus_write_ivar, legacy_pcib_write_ivar),
|
|
DEVMETHOD(bus_alloc_resource, legacy_pcib_alloc_resource),
|
|
DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource),
|
|
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
|
|
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
|
|
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
|
|
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
|
|
|
|
/* pcib interface */
|
|
DEVMETHOD(pcib_maxslots, legacy_pcib_maxslots),
|
|
DEVMETHOD(pcib_read_config, legacy_pcib_read_config),
|
|
DEVMETHOD(pcib_write_config, legacy_pcib_write_config),
|
|
DEVMETHOD(pcib_route_interrupt, legacy_pcib_route_interrupt),
|
|
DEVMETHOD(pcib_alloc_msi, legacy_pcib_alloc_msi),
|
|
DEVMETHOD(pcib_release_msi, pcib_release_msi),
|
|
DEVMETHOD(pcib_alloc_msix, legacy_pcib_alloc_msix),
|
|
DEVMETHOD(pcib_release_msix, pcib_release_msix),
|
|
DEVMETHOD(pcib_map_msi, legacy_pcib_map_msi),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static devclass_t hostb_devclass;
|
|
|
|
DEFINE_CLASS_0(pcib, legacy_pcib_driver, legacy_pcib_methods, 1);
|
|
DRIVER_MODULE(pcib, legacy, legacy_pcib_driver, hostb_devclass, 0, 0);
|
|
|
|
|
|
/*
|
|
* Install placeholder to claim the resources owned by the
|
|
* PCI bus interface. This could be used to extract the
|
|
* config space registers in the extreme case where the PnP
|
|
* ID is available and the PCI BIOS isn't, but for now we just
|
|
* eat the PnP ID and do nothing else.
|
|
*
|
|
* XXX we should silence this probe, as it will generally confuse
|
|
* people.
|
|
*/
|
|
static struct isa_pnp_id pcibus_pnp_ids[] = {
|
|
{ 0x030ad041 /* PNP0A03 */, "PCI Bus" },
|
|
{ 0x080ad041 /* PNP0A08 */, "PCIe Bus" },
|
|
{ 0 }
|
|
};
|
|
|
|
static int
|
|
pcibus_pnp_probe(device_t dev)
|
|
{
|
|
int result;
|
|
|
|
if ((result = ISA_PNP_PROBE(device_get_parent(dev), dev, pcibus_pnp_ids)) <= 0)
|
|
device_quiet(dev);
|
|
return(result);
|
|
}
|
|
|
|
static int
|
|
pcibus_pnp_attach(device_t dev)
|
|
{
|
|
return(0);
|
|
}
|
|
|
|
static device_method_t pcibus_pnp_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, pcibus_pnp_probe),
|
|
DEVMETHOD(device_attach, pcibus_pnp_attach),
|
|
DEVMETHOD(device_detach, bus_generic_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
DEVMETHOD(device_suspend, bus_generic_suspend),
|
|
DEVMETHOD(device_resume, bus_generic_resume),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static devclass_t pcibus_pnp_devclass;
|
|
|
|
DEFINE_CLASS_0(pcibus_pnp, pcibus_pnp_driver, pcibus_pnp_methods, 1);
|
|
DRIVER_MODULE(pcibus_pnp, isa, pcibus_pnp_driver, pcibus_pnp_devclass, 0, 0);
|
|
|
|
#ifdef __HAVE_PIR
|
|
/*
|
|
* Provide a PCI-PCI bridge driver for PCI busses behind PCI-PCI bridges
|
|
* that appear in the PCIBIOS Interrupt Routing Table to use the routing
|
|
* table for interrupt routing when possible.
|
|
*/
|
|
static int pcibios_pcib_probe(device_t bus);
|
|
|
|
static device_method_t pcibios_pcib_pci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, pcibios_pcib_probe),
|
|
|
|
/* pcib interface */
|
|
DEVMETHOD(pcib_route_interrupt, legacy_pcib_route_interrupt),
|
|
|
|
{0, 0}
|
|
};
|
|
|
|
static devclass_t pcib_devclass;
|
|
|
|
DEFINE_CLASS_1(pcib, pcibios_pcib_driver, pcibios_pcib_pci_methods,
|
|
sizeof(struct pcib_softc), pcib_driver);
|
|
DRIVER_MODULE(pcibios_pcib, pci, pcibios_pcib_driver, pcib_devclass, 0, 0);
|
|
|
|
static int
|
|
pcibios_pcib_probe(device_t dev)
|
|
{
|
|
int bus;
|
|
|
|
if ((pci_get_class(dev) != PCIC_BRIDGE) ||
|
|
(pci_get_subclass(dev) != PCIS_BRIDGE_PCI))
|
|
return (ENXIO);
|
|
bus = pci_read_config(dev, PCIR_SECBUS_1, 1);
|
|
if (bus == 0)
|
|
return (ENXIO);
|
|
if (!pci_pir_probe(bus, 1))
|
|
return (ENXIO);
|
|
device_set_desc(dev, "PCIBIOS PCI-PCI bridge");
|
|
return (-2000);
|
|
}
|
|
#endif
|