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Move {amd64,i386}/pci/pci_bus.c and {amd64,i386}/include/pci_cfgreg.h to

Browse Source 
the x86 tree.  The $PIR code is still only enabled on i386 and not amd64.
While here, make the qpi(4) driver on conditional on 'device pci'.
This commit is contained in:
John Baldwin 2011-06-22 21:04:13 +00:00
parent 0511675327
commit 1368987ae4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=223440
9 changed files with 105 additions and 545 deletions
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44
sys/amd64/include/pci_cfgreg.h
View File

@ -1,44 +1,6 @@
/*-
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
* All rights reserved.
*
* 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 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*
* This file is in the public domain.
*/
/* $FreeBSD$ */
#define CONF1_ADDR_PORT 0x0cf8
#define CONF1_DATA_PORT 0x0cfc
#define CONF1_ENABLE 0x80000000ul
#define CONF1_ENABLE_CHK 0x80000000ul
#define CONF1_ENABLE_MSK 0x7f000000ul
#define CONF1_ENABLE_CHK1 0xff000001ul
#define CONF1_ENABLE_MSK1 0x80000001ul
#define CONF1_ENABLE_RES1 0x80000000ul
u_long hostb_alloc_start(int type, u_long start, u_long end, u_long count);
int pcie_cfgregopen(uint64_t base, uint8_t minbus, uint8_t maxbus);
int pci_cfgregopen(void);
u_int32_t pci_cfgregread(int bus, int slot, int func, int reg, int bytes);
void pci_cfgregwrite(int bus, int slot, int func, int reg, u_int32_t data, int bytes);
#include <x86/pci_cfgreg.h>

435
sys/amd64/pci/pci_bus.c
View File

@ -1,435 +0,0 @@
/*-
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
* All rights reserved.
*
* 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 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_cpu.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/rman.h>
#include <sys/sysctl.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcib_private.h>
#include <isa/isavar.h>
#include <machine/legacyvar.h>
#include <machine/pci_cfgreg.h>
#include <machine/resource.h>
#include "pcib_if.h"
int
legacy_pcib_maxslots(device_t dev)
{
return 31;
}
/* read configuration space register */
uint32_t
legacy_pcib_read_config(device_t dev, u_int bus, u_int slot, u_int func,
u_int reg, int bytes)
{
return(pci_cfgregread(bus, slot, func, reg, bytes));
}
/* write configuration space register */
void
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);
}
/* route interrupt */
static int
legacy_pcib_route_interrupt(device_t pcib, device_t dev, int pin)
{
/* No routing possible */
return (PCI_INVALID_IRQ);
}
/* 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);
return (PCIB_ALLOC_MSI(device_get_parent(bus), dev, count, maxcount,
irqs));
}
static int
legacy_pcib_alloc_msix(device_t pcib, device_t dev, int *irq)
{
device_t bus;
bus = device_get_parent(pcib);
return (PCIB_ALLOC_MSIX(device_get_parent(bus), dev, irq));
}
static int
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);
return (PCIB_MAP_MSI(device_get_parent(bus), dev, irq, addr, data));
}
static const char *
legacy_pcib_is_host_bridge(int bus, int slot, int func,
uint32_t id, uint8_t class, uint8_t subclass,
uint8_t *busnum)
{
const char *s = NULL;
*busnum = 0;
if (class == PCIC_BRIDGE && subclass == PCIS_BRIDGE_HOST)
s = "Host to PCI bridge";
return s;
}
/*
* 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)
{
int bus;
bus = pcib_get_bus(dev);
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_print_child, bus_generic_print_child),
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),
{ 0, 0 }
};
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);

4
sys/conf/files.amd64
View File

@ -128,7 +128,6 @@ amd64/amd64/trap.c standard
amd64/amd64/uio_machdep.c standard
amd64/amd64/uma_machdep.c standard
amd64/amd64/vm_machdep.c standard
amd64/pci/pci_bus.c optional pci
amd64/pci/pci_cfgreg.c optional pci
crypto/aesni/aesencdec_amd64.S optional aesni
crypto/aesni/aeskeys_amd64.S optional aesni
@ -315,7 +314,8 @@ x86/isa/isa.c standard
x86/isa/isa_dma.c standard
x86/isa/nmi.c standard
x86/isa/orm.c optional isa
x86/pci/qpi.c standard
x86/pci/pci_bus.c optional pci
x86/pci/qpi.c optional pci
x86/x86/busdma_machdep.c standard
x86/x86/dump_machdep.c standard
x86/x86/io_apic.c standard

4
sys/conf/files.i386
View File

@ -352,7 +352,6 @@ i386/linux/linux_support.s optional compat_linux \
dependency "linux_assym.h"
i386/linux/linux_sysent.c optional compat_linux
i386/linux/linux_sysvec.c optional compat_linux
i386/pci/pci_bus.c optional pci
i386/pci/pci_cfgreg.c optional pci
i386/pci/pci_pir.c optional pci
i386/svr4/svr4_locore.s optional compat_svr4 \
@ -405,7 +404,8 @@ x86/isa/isa.c optional isa
x86/isa/isa_dma.c optional isa
x86/isa/nmi.c standard
x86/isa/orm.c optional isa
x86/pci/qpi.c standard
x86/pci/pci_bus.c optional pci
x86/pci/qpi.c optional pci
x86/x86/busdma_machdep.c standard
x86/x86/dump_machdep.c standard
x86/x86/io_apic.c optional apic

2
sys/conf/files.pc98
View File

@ -199,7 +199,6 @@ i386/linux/linux_support.s optional compat_linux \
dependency "linux_assym.h"
i386/linux/linux_sysent.c optional compat_linux
i386/linux/linux_sysvec.c optional compat_linux
i386/pci/pci_bus.c optional pci
i386/pci/pci_cfgreg.c optional pci
i386/pci/pci_pir.c optional pci
i386/svr4/svr4_locore.s optional compat_svr4 \
@ -249,6 +248,7 @@ pc98/pc98/pc98_machdep.c standard
x86/isa/atpic.c optional atpic
x86/isa/clock.c standard
x86/isa/isa.c optional isa
x86/pci/pci_bus.c optional pci
x86/x86/busdma_machdep.c standard
x86/x86/dump_machdep.c standard
x86/x86/io_apic.c optional apic

1
sys/i386/include/param.h
View File

@ -56,6 +56,7 @@
#define __HAVE_ACPI
#define __HAVE_PIR
#define __PCI_REROUTE_INTERRUPT
#ifndef MACHINE

53
sys/i386/include/pci_cfgreg.h
View File

@ -1,53 +1,6 @@
/*-
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
* All rights reserved.
*
* 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 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*
* This file is in the public domain.
*/
/* $FreeBSD$ */
#define CONF1_ADDR_PORT 0x0cf8
#define CONF1_DATA_PORT 0x0cfc
#define CONF1_ENABLE 0x80000000ul
#define CONF1_ENABLE_CHK 0x80000000ul
#define CONF1_ENABLE_MSK 0x7f000000ul
#define CONF1_ENABLE_CHK1 0xff000001ul
#define CONF1_ENABLE_MSK1 0x80000001ul
#define CONF1_ENABLE_RES1 0x80000000ul
#define CONF2_ENABLE_PORT 0x0cf8
#define CONF2_FORWARD_PORT 0x0cfa
#define CONF2_ENABLE_CHK 0x0e
#define CONF2_ENABLE_RES 0x0e
u_long hostb_alloc_start(int type, u_long start, u_long end, u_long count);
int pcie_cfgregopen(uint64_t base, uint8_t minbus, uint8_t maxbus);
int pci_cfgregopen(void);
u_int32_t pci_cfgregread(int bus, int slot, int func, int reg, int bytes);
void pci_cfgregwrite(int bus, int slot, int func, int reg, u_int32_t data, int bytes);
void pci_pir_open(void);
int pci_pir_probe(int bus, int require_parse);
int pci_pir_route_interrupt(int bus, int device, int func, int pin);
#include <x86/pci_cfgreg.h>

60
sys/x86/include/pci_cfgreg.h Normal file
View File

@ -0,0 +1,60 @@
/*-
* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
* All rights reserved.
*
* 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 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
* $FreeBSD$
*
*/
#ifndef __X86_PCI_CFGREG_H__
#define __X86_PCI_CFGREG_H__
#define CONF1_ADDR_PORT 0x0cf8
#define CONF1_DATA_PORT 0x0cfc
#define CONF1_ENABLE 0x80000000ul
#define CONF1_ENABLE_CHK 0x80000000ul
#define CONF1_ENABLE_MSK 0x7f000000ul
#define CONF1_ENABLE_CHK1 0xff000001ul
#define CONF1_ENABLE_MSK1 0x80000001ul
#define CONF1_ENABLE_RES1 0x80000000ul
#define CONF2_ENABLE_PORT 0x0cf8
#define CONF2_FORWARD_PORT 0x0cfa
#define CONF2_ENABLE_CHK 0x0e
#define CONF2_ENABLE_RES 0x0e
u_long hostb_alloc_start(int type, u_long start, u_long end, u_long count);
int pcie_cfgregopen(uint64_t base, uint8_t minbus, uint8_t maxbus);
int pci_cfgregopen(void);
u_int32_t pci_cfgregread(int bus, int slot, int func, int reg, int bytes);
void pci_cfgregwrite(int bus, int slot, int func, int reg, u_int32_t data, int bytes);
#ifdef __HAVE_PIR
void pci_pir_open(void);
int pci_pir_probe(int bus, int require_parse);
int pci_pir_route_interrupt(int bus, int device, int func, int pin);
#endif
#endif /* !__X86_PCI_CFGREG_H__ */

47
sys/i386/pci/pci_bus.c → sys/x86/pci/pci_bus.c
View File

@ -51,9 +51,6 @@ __FBSDID("$FreeBSD$");
#include "pcib_if.h"
static int pcibios_pcib_route_interrupt(device_t pcib, device_t dev,
int pin);
int
legacy_pcib_maxslots(device_t dev)
{
@ -78,6 +75,21 @@ legacy_pcib_write_config(device_t dev, u_int bus, u_int slot, u_int func,
pci_cfgregwrite(bus, slot, func, reg, data, bytes);
}
/* route interrupt */
static int
legacy_pcib_route_interrupt(device_t pcib, device_t dev, int pin)
{
#ifdef __HAVE_PIR
return (pci_pir_route_interrupt(pci_get_bus(dev), pci_get_slot(dev),
pci_get_function(dev), pin));
#else
/* No routing possible */
return (PCI_INVALID_IRQ);
#endif
}
/* Pass MSI requests up to the nexus. */
static int
@ -115,6 +127,7 @@ legacy_pcib_is_host_bridge(int bus, int slot, int func,
uint32_t id, uint8_t class, uint8_t subclass,
uint8_t *busnum)
{
#ifdef __i386__
const char *s = NULL;
static uint8_t pxb[4]; /* hack for 450nx */
@ -332,6 +345,14 @@ legacy_pcib_is_host_bridge(int bus, int slot, int func,
}
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
}
/*
@ -471,19 +492,23 @@ legacy_pcib_probe(device_t dev)
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.
*/
bus = pcib_get_bus(dev);
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);
}
@ -587,7 +612,7 @@ static device_method_t legacy_pcib_methods[] = {
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, pcibios_pcib_route_interrupt),
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),
@ -651,7 +676,7 @@ 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
@ -664,7 +689,7 @@ static device_method_t pcibios_pcib_pci_methods[] = {
DEVMETHOD(device_probe, pcibios_pcib_probe),
/* pcib interface */
DEVMETHOD(pcib_route_interrupt, pcibios_pcib_route_interrupt),
DEVMETHOD(pcib_route_interrupt, legacy_pcib_route_interrupt),
{0, 0}
};
@ -691,10 +716,4 @@ pcibios_pcib_probe(device_t dev)
device_set_desc(dev, "PCIBIOS PCI-PCI bridge");
return (-2000);
}
static int
pcibios_pcib_route_interrupt(device_t pcib, device_t dev, int pin)
{
return (pci_pir_route_interrupt(pci_get_bus(dev), pci_get_slot(dev),
pci_get_function(dev), pin));
}
#endif