Commit Graph

79 Commits

Author SHA1 Message Date
Warner Losh
e5d7e9c76c Fix a PNPID in a comment
Submitted by: David Xu
2002-04-24 15:22:53 +00:00
Nicolas Souchu
c17d43407f Major rework of the iicbus/smbus framework:
- VIA chipset SMBus controllers added
	- alpm driver updated
	- Support for dynamic modules added
	- bktr FreeBSD smbus updated but not tested
	- cleanup
2002-03-23 15:49:15 +00:00
Murray Stokely
b0ae3ab3fe Add identification string for AMD-761 host to PCI bridge.
PR:	kern/32255
2001-12-10 09:27:00 +00:00
Peter Wemm
573be82757 Detect a certain type of PCIBIOS brain damage. For some reason,
some bios vendors took it apon themselves to "censor" the
host->pci bridges from PCIBIOS callers, even when the caller
explicitly asks for them.  This includes certain Compaq machines
(eg: DL360) and some laptops.

If we detect this, shut down pcibios and revert to using IO
port bashing.

Under -current, apcica does a better job anyway.
2001-08-21 03:10:55 +00:00
Mike Smith
bb0d0a8efc Next phase in the PCI subsystem cleanup.
- Move PCI core code to dev/pci.
 - Split bridge code out into separate modules.
 - Remove the descriptive strings from the bridge drivers.  If you
   want to know what a device is, use pciconf.  Add support for
   broadly identifying devices based on class/subclass, and for
   parsing a preloaded device identification database so that if
   you want to waste the memory, you can identify *anything* we know
   about.
 - Remove machine-dependant code from the core PCI code.  APIC interrupt
   mapping is performed by shadowing the intline register in machine-
   dependant code.
 - Bring interrupt routing support to the Alpha
   (although many platforms don't yet support routing or mapping
   interrupts entirely correctly).  This resulted in spamming
   <sys/bus.h> into more places than it really should have gone.
 - Put sys/dev on the kernel/modules include path.  This avoids
   having to change *all* the pci*.h includes.
2000-12-08 22:11:23 +00:00
Mike Smith
e9ca98b28f Hack to work around a probe which will lock up at least some i450GX-based
systems.

From the PR:

 When 'probe.slot' is PCI_SLOTMAX (== 31) and 'probe.func' is 7,
 call to 'pci_cfgread()' here and machine suddenly hangs up.
 I don't know why...  (or 450GX chipset's bug?)

PR:		i386/20379
Submitted by:	Masayuki FUKUI <fukui@sonic.nm.fujitsu.co.jp>
2000-11-08 11:25:15 +00:00
Andrey A. Chernov
c07f6a2dd1 Return -10000 in pci_hostb_probe to allow agp driver (disabled otherwise) 2000-10-20 15:40:05 +00:00
Andrey A. Chernov
da0f52e1ea Add i815 Host to Hub 2000-10-20 15:14:51 +00:00
Warner Losh
54c9005faf Add the ability to use the $PIR table in the BIOS to route interrupts
on demand.

Submitted by: msmith
2000-10-16 07:25:08 +00:00
Alan Cox
e0284d2eb1 Change the text for the ServerWorks north bridge chips. RCC is now
officially listed as ServerWorks by www.pcisig.com.
2000-10-14 23:45:09 +00:00
Mike Smith
3c3134d3a0 When testing for PCI bus overlap with another enumerator, make sure we
check for the right bus number.  This is still not quite right, but
fixes things for multi-bus machines again.

Submitted by:	tegge
2000-10-11 23:03:11 +00:00
Mike Smith
03de26e0d0 Only attach "legacy" PCI busses if none have been attached via any other
method.
2000-10-09 00:44:41 +00:00
Mike Smith
12a02d6efd Move the i386 PCI attachment code out of i386/isa back into i386/pci.
Split out the configuration space access primitives, as these are needed
elsewhere as well.
2000-10-02 07:11:13 +00:00
Peter Wemm
b6c8407840 Get out the roto-rooter and clean up the abuse of nexus ivars by the
i386/isa/pcibus.c.  This gets -current running again on multiple host->pci
machines after the most recent nexus commits.  I had discussed this with
Mike Smith, but ended up doing it slightly differently to what we
discussed as it turned out cleaner this way.  Mike was suggesting creating
a new resource (SYS_RES_PCIBUS) or something and using *_[gs]et_resource(),
but IMHO that wasn't ideal as SYS_RES_* is meant to be a global platform
property, not a quirk of a given implementation.  This does use the ivar
methods but does so properly.  It also now prints the physical pci bus that
a host->pci bridge (pcib) corresponds to.
2000-09-28 00:37:32 +00:00
Peter Wemm
4d8ea19f7c Catch a few more bogosities in certain chipsets before they mess us up.
Some have dual host->PCI bridges for the same logical pci bus (!), eg:
some of the RCC chipsets.  This is a 32/64 bit 33/66MHz and dual pci
voltage motherboard so persumably there are electical or signalling
differences but they are otherwise the same logical bus.
The new PCI probe code however was getting somewhat upset about it and
ended up creating two pci bridges to the same logical bus, which caused
devices on that logical bus to appear and be probed twice.

The ACPI data on this box correctly identifies this stuff, so bring on
ACPI! :-)
2000-09-05 00:53:34 +00:00
Peter Wemm
280b4748af Take a shot at fixing multiple pci busses on i386.
pcib_set_bus() cannot be used on the new child because it is
meant to be used on the *pci* device (it looks at the parent internally)
not the pcib being added.  Bite the bullet and use ivars for the bus
number to avoid any doubts about whether the softc is consistant between
probe and attach.  This should not break the Alpha code.
2000-08-31 23:11:35 +00:00
Doug Rabson
21c3015a24 * Completely rewrite the alpha busspace to hide the implementation from
the drivers.
* Remove legacy inx/outx support from chipset and replace with macros
  which call busspace.
* Rework pci config accesses to route through the pcib device instead of
  calling a MD function directly.

With these changes it is possible to cleanly support machines which have
more than one independantly numbered PCI busses. As a bonus, the new
busspace implementation should be measurably faster than the old one.
2000-08-28 21:48:13 +00:00
Mike Smith
2a50a6d730 Add PnP probe methods to some common AT hardware drivers. In each case,
the PnP probe is merely a stub as we make assumptions about some of this
hardware before we have probed it.

Since these devices (with the exception of the speaker) are 'standard',
suppress output in the !bootverbose case to clean up the probe messages
somewhat.
2000-06-23 07:44:33 +00:00
Jun Kuriyama
569e965893 Add OPTi 82C700 chipset.
Submitted by:	sanpei@sanpei.org
PR:		kern/18155 (part of)
2000-05-24 09:03:30 +00:00
Jun Kuriyama
3cc13eb5b1 Add 440MX chipset.
Submitted by:	YOSHIMURA Hideaki <hideakiy@cs-tokyo01.chuosystem.co.jp>
References:	[bsd-nomads:13764]
2000-05-24 02:24:38 +00:00
Mike Smith
ac9b3dacb2 Don't assume that the PCI BIOS is going to clear the unused bits in %ecx
when it returns.
2000-05-04 17:44:55 +00:00
Mike Smith
300451c472 Some more i386-only BIOS-friendliness:
- Add support for using the PCI BIOS functions for configuration space
   accesses, and make this the default.

 - Make PNPBIOS the default (obsoletes the PNPBIOS config option).

 - Add two new boot-time tunables to disable each of the above.
2000-04-16 20:48:33 +00:00
Doug Rabson
ac19291f35 Add a workaround to allow us to detect the second pci bus on an HP
Netserver LS/2.

Approved by: jkh
2000-02-23 20:25:06 +00:00
Doug Rabson
9a1498a435 Fix an uninitialised variable which affected probing on some machines.
Approved by: jkh
Reviewed by: gallatin
2000-02-13 09:49:05 +00:00
Andrew Gallatin
da4009202a Allow allows peer pci buses which are directly connected to the RCC host pci
chipset to be probed & attached on newer Dell PowerEdge servers, such as
the 2400 and 4400.

Reviewed by: 	dfr, msmith, jlemon
Tested by:	hnokubi@yyy.or.jp (in a previous incantation)
Approved by:	jkh
2000-02-09 20:05:30 +00:00
Nick Hibma
4f2e8d6383 Add PCI Id's for i810 chipsets.
PR:		16517
Submitted by:	SAKIYAMA Nobuo <sakichan@lares.dti.ne.jp>
Approved by:	jhk
2000-02-07 12:50:33 +00:00
Peter Wemm
4a1e4cb727 Clean up the cfgmech/pci_mechanism debris. The reason for the existance
of this is no longer an issue as we have a replacement driver for the
one that needed it.

Reviewed by:	dfr
2000-01-08 08:31:24 +00:00
Doug Rabson
c954d7368a Don't use a bogus bus number for Ross host-pci bridges.
PR:	kern/15278
Submitted by: Ahmed Benani <ahmed_benani@urbanet.ch>
1999-12-05 18:41:34 +00:00
Matthew N. Dodd
fe0d408987 Remove the 'ivars' arguement to device_add_child() and
device_add_child_ordered().  'ivars' may now be set using the
device_set_ivars() function.

This makes it easier for us to change how arbitrary data structures are
associated with a device_t.  Eventually we won't be modifying device_t
to add additional pointers for ivars, softc data etc.

Despite my best efforts I've probably forgotten something so let me know
if this breaks anything.  I've been running with this change for months
and its been quite involved actually isolating all the changes from
the rest of the local changes in my tree.

Reviewed by:	peter, dfr
1999-12-03 08:41:24 +00:00
Peter Wemm
cde35e1a3d If we have found pci devices via pci_cfgopen(), but don't find a
host->pci bridge specifically, then add a pcib0 device on the motherboard
for the pci bus to hang off.

Requested by:  Anders Andersson <anders@sanyusan.se>
Obtained from: dfr
1999-11-18 08:58:37 +00:00
Alan Cox
eab7cc95c4 Add text for the AMD-751 host-to-PCI and PCI-to-PCI (AGP) bridges. 1999-10-25 06:28:04 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Peter Wemm
f3b63bd388 Make the identify routine add itself with priority 100 to make sure it
goes after the npx/apm devices and any other motherboard devices that
may get added down the track.
1999-08-22 19:54:11 +00:00
Peter Wemm
accc665bbe Hopefully fix the previous commit, it caused *all* bridges to be detected
as PCI->HOST bridges on my (440BX) box.

My change is to remove the test at the beginning entirely, letting the
switch on the device ID happen first.  If the device ID is unknown, then
(in the default case) check for the generic PCIS_BRIDGE_HOST tag.  This
should allow wierd cases (eg: wpaul's IMS VL bridge) to work by using the
id override.  This strategy is more in line with the other PCI match
methods we use elsewhere,

I only have a limited testbed, but having my USB etc devices detected as
PCI->HOST bridges doesn't look good.
1999-08-10 09:22:21 +00:00
Bill Paul
d9d628b000 Fix nexus_pcib_is_host_bridge() so that it detects my 486's PCI bus
correctly. It has the following code:

        if (class != PCIC_BRIDGE || subclass != PCIS_BRIDGE_HOST)
                return NULL;

My 486 has an Integrated Micro Solutions PCI bridge which identifies
itself as subclass PCIS_BRIDGE_OTHER, not PCIS_BRIDGE_HOST. Consequently,
it gets ignored. In my opinion, the correct test should be:

        if ((class != PCIC_BRIDGE) && (subclass != PCIS_BRIDGE_HOST))
                return NULL;

That way the test still succeeds because the chip's class is PCIC_BRIDGE.
Clearly it's not reasonable to expect all host to PCI bridges to always
have a subclass of PCIS_BRIDGE_HOST since I've got one that doesn't.
This way the sanity test should remain relatively sane while still allowing
some oddball yet correct hardware to work. If somebody has a better way
to do it, go ahead and tweak the test, but be aware that
class == PCIC_BRIDGE and subclass == PCIS_BRIDGE_OTHER is a valid case.

While I was here, I also added an explicit ID string for the IMS chipset.
I also dealt with a minor style nit: it's bad karma not to have a default
case for your switch statements, but the one in this routine doesn't have
one. The default string of "Host to PCI bridge" is now assigned in a
default case of the switch statement instead of initializing "s" with the
string before the switch and then not having any default case.
1999-08-09 21:12:18 +00:00
Peter Wemm
cac6a04400 Don't probe if pci_cfgopen() fails to find pci hardware, like we used to
to.  This might have caused interesting things on non-PCI hardware if
PCI was compiled in.
1999-08-04 13:38:24 +00:00
Mike Smith
850013034a Add support for multiple PCI busses directly connected to the nexus.
This is only partially complete, but allows 450NX-based systems with
more than one PCI bus to be used again.

Submitted by:	dfr
1999-07-16 01:00:30 +00:00
Peter Wemm
8dc26439da Move pcibus (host -> pci bus) probe/attach routines from nexus
to pcibus.c.  pci_cfgopen() becomes static and there are no more
bus #ifdef's in nexus.c.
1999-05-18 20:48:43 +00:00
Stefan Eßer
8277ac255e Make the class code checks in function pci_cfgcheck less strict.
It failed to recognize the PCI bus in a system that had only an
old chip-set (class code 000000) and a Cyclom multiport serial
card on PCI bus 0, but no VGA card or disk or network controller.

PR:		i386/5300
Submitted by:	Nickolay N. Dudorov <nnd@itfs.nsk.su>
1997-12-20 09:04:25 +00:00
Bruce Evans
f71d35e402 Removed unused #includes. 1997-07-20 14:10:18 +00:00
Stefan Eßer
b3daa02e72 Yet another fix for configuration mechanism 1 register accesses:
Adjust the data port address by adding the two low order bits of
the register number. The address port takes only a word address
(i.e. ignores the two low order bits written to it).
1997-05-26 21:52:41 +00:00
Stefan Eßer
64039d403f Fix previous fix: The enable bit is bit 31 (0x8000000) and not bit 15. 1997-05-26 21:25:24 +00:00
Stefan Eßer
e0c57a9615 Set enable bit when writing the configuration address in configuration
mode 1. Omission of this bit makes all config register accesses fail in
on recent chip sets ...

(The problem was reported and debug output provided by: Steve Passe)
1997-05-26 21:11:05 +00:00
Stefan Eßer
5bec615793 Completely replace the PCI bus driver code to make it better reflect
reality. There will be a new call interface, but for now the file
pci_compat.c (which is to be deleted, after all drivers are converted)
provides an emulation of the old PCI bus driver functions. The only
change that might be visible to drivers is, that the type pcici_t
(which had been meant to be just a handle, whose exact definition
should not be relied on), has been converted into a pcicfgregs* .

The Tekram AMD SCSI driver bogusly relied on the definition of pcici_t
and has been converted to just call the PCI drivers functions to access
configuration space register, instead of inventing its own ...

This code is by no means complete, but assumed to be fully operational,
and brings the official code base more in line with my development code.

A new generic device descriptor data type has to be agreed on. The PCI
code will then use that data type to provide new functionality:

1) userconfig support
2) "wired" PCI devices
3) conflicts checking against ISA/EISA
4) maps will depend on the command register enable bits
5) PCI to Anything bridges can be defined as devices,
   and are probed like any "standard" PCI device.

The following features are currently missing, but will be added back,
soon:

1) unknown device probe message
2) suppression of "mirrored" devices caused by ancient, broken chip-sets

This code relies on generic shared interrupt support just commited to
kern_intr.c (plus the modifications of isa.c and isa_device.h).
1997-05-26 15:08:43 +00:00
Stefan Eßer
5c03639065 Mask out revision register in consistency test of class register. 1997-04-09 11:34:50 +00:00
Stefan Eßer
6df09d1e0b Fix spelling of align and interrupt in comments. 1997-04-09 09:16:27 +00:00
Stefan Eßer
b4b8847934 Fix consistency test to not fail on pre PCI 2.0 motherboards 1997-04-09 09:15:03 +00:00
Stefan Eßer
81cf5d7aae improve pcibus_check: Only assume PCI if at least one PCI to anything bridge
on bus 0.
This fixes problems with EISA-only systems mistakenly being assumed to support PCI.
1997-03-05 20:52:00 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +00:00
Bruce Evans
4123678332 Sync with <pci/pcibus.h>. pcibus.c unfortunately still compiled (with
only 3 or 4 warnings) when pb_maxirq went away.
1997-01-25 18:51:01 +00:00