Commit Graph

88 Commits

Author SHA1 Message Date
Doug Rabson
98ffb0c4f2 Some workarounds for a common DEC pci-pci bridge found on alphas.
Fix printf format errors which show up on the alpha.
1998-09-16 08:28:11 +00:00
Justin T. Gibbs
5ee58402df Correct printf format bugs. 1998-09-15 22:05:44 +00:00
Justin T. Gibbs
06915ea69a Revive PCIConf.
Submitted by:	"Kenneth D. Merry" <ken@plutotech.com>
1998-09-15 08:21:13 +00:00
Tor Egge
572d053e17 Maintain a mapping from irq number to (ioapic number, int pin) tuple,
and use this when masking/unmasking interrupts.

Maintain a mapping from (iopaic number, int pin) tuple to irq number,
and use this when configuring devices and programming the ioapics.

Previous code assumed that irq number was equal to int pin number, and
that the ioapic number was 0.

Don't let an AP enter _cpu_switch before all local apics are initialized.
1998-09-06 22:41:42 +00:00
Justin T. Gibbs
188fafbc3f Use "baseclass" instead of "class" for storing the contents of PCI register
0xB so that C++ programs can use the PCI conf interface.
1998-08-13 19:12:20 +00:00
Doug Rabson
e8669bcd43 Add a call to a platform-specific irq remapping function for alpha platforms
which don't record the correct irqs in PCI config space.

Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
1998-07-22 08:40:46 +00:00
Doug Rabson
ecbb00a262 This commit fixes various 64bit portability problems required for
FreeBSD/alpha.  The most significant item is to change the command
argument to ioctl functions from int to u_long.  This change brings us
inline with various other BSD versions.  Driver writers may like to
use (__FreeBSD_version == 300003) to detect this change.

The prototype FreeBSD/alpha machdep will follow in a couple of days
time.
1998-06-07 17:13:14 +00:00
Tor Egge
5758c2de94 Add two workarounds for broken MP tables:
- Attempt to handle PCI devices where the interrupt is
	  an ISA/EISA interrupt according to the mp table.

	- Attempt to handle multiple IO APIC pins connected to
	  the same PCI or ISA/EISA interrupt source.  Print a
	  warning if this happens, since performance is suboptimal.
	  This workaround is only used for PCI devices.

With these two workarounds, the -SMP kernel is capable of running on
my Asus P/I-P65UP5 motherboard when version 1.4 of the MP table is disabled.
1998-04-01 21:07:37 +00:00
Eivind Eklund
7b778b5e61 Make all file-system (MFS, FFS, NFS, LFS, DEVFS) related option new-style.
This introduce an xxxFS_BOOT for each of the rootable filesystems.
(Presently not required, but encouraged to allow a smooth move of option *FS
to opt_dontuse.h later.)

LFS is temporarily disabled, and will be re-enabled tomorrow.
1998-01-24 02:54:56 +00:00
Poul-Henning Kamp
4a11ca4e29 Remove a bunch of variables which were unused both in GENERIC and LINT.
Found by:	-Wunused
1997-11-07 08:53:44 +00:00
Peter Wemm
35b8b2ddab Update select -> poll in drivers. 1997-09-14 03:19:42 +00:00
Bruce Evans
1fd0b0588f Removed unused #includes. 1997-08-02 14:33:27 +00:00
Steve Passe
91f7398bca Modified to use renamed get_pci_apic_irq() -> pci_apic_pin() function. 1997-06-25 20:56:29 +00:00
Stefan Eßer
1a26f4c024 Move call of pci_addcfg() before test of cfg->subordinatebus, since the
device probe of a host to PCI bridge may modify that value, based on
its knowledge of device specific registers. This makes the Intel XXpress
work, as verified by: Terje Marthinussen <terjem@cc.uit.no>.
1997-06-02 19:59:01 +00:00
Stefan Eßer
a9ad937362 Two minor changes to the code that builds the pci map array:
1) Stop at the first map register that contains a zero value.
2) When testing for the map size work up from low values, since
   this works around a bug in some BusLogic SCSI card, which has
   the 16 upper port base address bits hardwired to zero.

The config register dump printed in the bootverbose case has
been slightly rearranged.
1997-05-28 10:01:03 +00:00
Steve Passe
6ef807e505 Minor cleanup of APIC_IO code.
Submitted by:	Stefan Esser <se@freebsd.org>
1997-05-27 19:24:36 +00:00
Steve Passe
ce595b36d5 Add support for APIC_IO to pci IRQ configuration.
The support for APIC_IO was lost in the new set of pci modules.  This patch
restores the ability to build SMP/APIC_IO kernels.
1997-05-27 04:09:01 +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
Poul-Henning Kamp
b038679c5c Initialize PCI/CardBus bridges.
Tested on:	HP Omnibook 800 / TI PCI1130
Reviewed by:	se
1997-05-03 13:52:29 +00:00
Peter Wemm
477a642cee Man the liferafts! Here comes the long awaited SMP -> -current merge!
There are various options documented in i386/conf/LINT, there is more to
come over the next few days.

The kernel should run pretty much "as before" without the options to
activate SMP mode.

There are a handful of known "loose ends" that need to be fixed, but
have been put off since the SMP kernel is in a moderately good condition
at the moment.

This commit is the result of the tinkering and testing over the last 14
months by many people.  A special thanks to Steve Passe for implementing
the APIC code!
1997-04-26 11:46:25 +00:00
Stefan Eßer
7cb74fcfa2 Add preliminary support for PCI config header type 2:
Fetch subvendor/device ID from config space register 0x40.
1997-04-23 19:43:20 +00:00
Stefan Eßer
6072387d65 Fix printing of map sizes: large numbers got a negative sign before. 1997-03-25 19:12:08 +00:00
Stefan Eßer
ee88645781 Add a few vendor IDs and class and sub-class encodings.
Submitted by:	phk
1997-03-25 19:01:46 +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
Andrey A. Chernov
1963788476 Fix misspelled variable name, -current build stopper 1997-02-05 07:23:56 +00:00
Stefan Eßer
cfc23ad40c Add interface revision field to pci_register_lkm parameter list.pci.c pcibus.h
This parameter is intended to allow new kernels to work with old LKM binaries,
provided the revision ID is incremented whenever the PCI LKM interface is
changed. The revision ID does not at all protect against changes in data
structures accesses by the driver.
1997-02-04 18:31:57 +00:00
Stefan Eßer
e8bfed6d98 Improve on previous fix: Clean up getirq() as well, and remove redundant
warning messages.
1997-01-25 01:57:30 +00:00
Stefan Eßer
a67fa10338 Make IRQ 0 invalid in pci_map_int(), since it is hardwired to the
programmable interval timer chip in PC systems.
1997-01-23 22:58:03 +00:00
Stefan Eßer
993dec9d58 Add PCI LKM support. 1997-01-21 23:23:40 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Stefan Eßer
576b74fcc8 Add support for header type == 1 devices (PCI 2.1 compatible PCI to PCI
bridges with support for 64 bit memory addresses and 32 bit I/O addresses).

The code is not complete. It ignores the upper half of the long addresses.
This is not a problem on PC compatible systems, but has to be fixed for
real computers.
1996-11-12 23:18:12 +00:00
Stefan Eßer
c88529d0e9 Fix PCI to PCI bridge register bit field masks.
Thanks to "Mike Durian" <durian@plutotech.com> for the very good
problem report and his support as a beta tester of this patch.
1996-11-12 23:10:24 +00:00
Stefan Eßer
10e966fae4 Add support for ioctl() accesses to PCI config space registers.
Garrett Wollman sent me this code a few weeks ago for review, and I made
some significant changes, which he in turn accepted ...

In order to make use of these changes, a device entry has to added to /dev.

Submitted by:	wollman
1996-10-22 20:20:14 +00:00
Stefan Eßer
b86a81e448 pci_map_mem() did a too restrictive check on the mapping type:
PCI_MAP_MEMORY_TYPE_32BIT_1M should be accepted as well as
PCI_MAP_MEMORY_TYPE_32BIT (and now is).
(Problem reported by David Greenman.)
1996-10-14 13:04:34 +00:00
Bruce Evans
b568ea4e01 Removed more devconf leftovers. 1996-09-10 23:31:13 +00:00
Poul-Henning Kamp
bfbb029d87 Remove devconf, it never grew up to be of any use. 1996-09-06 23:09:20 +00:00
Stefan Eßer
77b3da75e6 Fix code that deals with multiple host to PCI bridges by making the next
one use the highest seen bus number plus 1 as its starting point.
1996-09-05 21:28:51 +00:00
Stefan Eßer
7fa8a688aa Add preliminary support for the Orion PCI chip set. It is special in the
way it attaches multiple PCI buses directly to the CPU, instead of having
them hanging off from PCI to PCI bridges. This code is a hack, and will
be obsoleted by the planned rework of the PCI code, which will change the
dealing with PCI to PCI bridges and other special devices significantly.

The patch also adds a kern_devconf entry for PCI bus 0 which is assumed
to be a child of cpu0. The new PCI code will make it possible to hand out
the kern_devconf structure to a pci device being attached, since this is
(regretably, IMHO) required by a few ISA devices.

Finally there are new PCI ids for some Intel chip set devices, which had
already been known to 2.1.5R, but did not make it into -current. This closes
"kern/1558: PCI probe seems to have lost a device in -current".
1996-09-02 21:23:06 +00:00
Satoshi Asami
58e025d580 Scan PCI buses in order the BIOS has assigned them. This is sometimes
necessary to boot from a SCSI disk connected to a twin-channel adapter,
and you have multiple of them (disks and adapters).

Reviewed by:	se
1996-06-09 11:58:19 +00:00
Stefan Eßer
4beaf036a6 Fix range check to actually test the variable that will be used as
an index later.

Submitted by:	Erich Stefan Boleyn <erich@uruk.org>
1996-05-18 17:32:20 +00:00
Satoshi Asami
f8176d838c Fix logic bug in pci bridge code. For a PCI-PCI bridge, secondary
should be <= than subordinate, not the other way around.

They are both true if the bridge is not cascaded (i.e., twin-channel
scsi/e-net adapters won't be affected by this bug), which is probably why
it was unnoticed until today.
1996-04-25 06:04:27 +00:00
Stefan Eßer
68159c8901 Update PCI bus code from my current sources:
- always use pci_conf_read() and pci_conf_write(). (This is required to
  simulate non-existant devices in my system for PCI bridge code tests.)

- reorder some functions (put the main functions at the end).

- correct off by one bug in the code dealing with unitialized PCI to PCI
  bridge chips. (Bug found by ASAMI Satoshi.)

- print function number for multi-function devices.
1996-04-14 20:14:36 +00:00
Bruce Evans
3157adc8af Removed now-unused #includes of <machine/cpu.h>. They were for bootverbose
being declared in the wrong place.
1996-04-07 17:32:42 +00:00
Stefan Eßer
8ec7a852b0 Remove limit of port I/O addresses to 65K, since PCI specifies 32 bit
port addresses (even though the PC architecture doesn't support them).

Add code to limit the I/O map size based on the lowest set bit of the
address. This cures the problem with the BT946C only having a 16 bit
map register, in voiolation of the PCI specs, without giving up the
general support of >65K port regions.
1996-02-19 00:30:40 +00:00
Stefan Eßer
07d9d14a55 Add generic PCI to PCI bridge support.
Improve verbose boot messages for unidentified chips.
1996-02-17 23:57:04 +00:00
Stefan Eßer
dcf289cdb5 Add heuristic to detect multi-function devices that don't announce this
feature in the header type register, though it is required by the PCI spec.
This should correctly probe both functions of the Intel 82371FB chip,
without the need for a special case based on the device ID.
1996-01-30 01:14:29 +00:00
Garrett Wollman
31c5632840 Decode configuration for the IDE part of the Triton chipset. This
includes a hack in the probe code: the 82371FB is a multifuction
device, but doesn't properly set the configuration bit which
indicates this.  So, we just hard-wire all 82371FBs as multifunction
devices.

This does not actually make the bus-master IDE stuff work, although
if anyone wants to work on that, I have the databooks that tell
how to use it.
1996-01-27 20:14:32 +00:00
Stefan Eßer
e653d76e96 Add support for multi-function devices. 1996-01-25 18:32:00 +00:00
Stefan Eßer
dd7610fca4 Make PCI interrupt handlers return void like everybody else does.
Reviewed by:	davidg
1996-01-23 21:48:28 +00:00
Stefan Eßer
e66a4e401d Improve PCI probe messages by printing the bus number.
Add missing newline to PCI to PCI bridge message.

Submitted by:	Matt Thomas <matt@lkg.dec.com>
1996-01-19 19:01:19 +00:00