Commit Graph

34 Commits

Author SHA1 Message Date
Peter Wemm
bcae942098 Zap pci_map_dense() and pci_map_bwx() - they were for compatability but
are not used.  All the drivers that use memory mapped IO on the Alpha have
been ported already.
2000-01-05 16:40:10 +00:00
Doug Rabson
45f0aa1f0e * Implement bus_set/get/delete_resource for pci.
* Change the hack used on the alpha for mapping devices into DENSE or
  BWX memory spaces to a simpler one. Its still a hack and should be
  a seperate api to explicitly map the resource.
* Add $FreeBSD$ as necessary.
1999-10-14 21:38:33 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Doug Rabson
aa595accc9 Add support for SYS_RES_DENSE and SYS_RES_BWX resource types. These are
equivalent to SYS_RES_MEMORY for x86 but for alpha, the rman_get_virtual()
address of the resource is initialised to point into either dense-mapped
or bwx-mapped space respectively, allowing direct memory pointers to be
used to device memory.

Reviewed by: Andrew Gallatin <gallatin@cs.duke.edu>
1999-07-28 07:57:48 +00:00
Peter Wemm
9929d2a045 Eliminate a bunch of #include "pci.h" and #if NPCI > 0 around entire
files.  config will leave the whole file out if configured to do so.
1999-07-03 20:17:08 +00:00
Roger Hardiman
153eb46fb6 On the new Meteor cards, the Philips SAA 7116 is connected to the PCI bus
via an IBM PCI-PCI bridge (82351 or 82352 or 82353)

The driver must identify if it is on a secondary PCI bus, which is
created via the IBM PCI-PCI bridge. If it is, then it must initialise
the IBM PCI-PCI bridge correctly.

To do this, the following new functions are added.
Because they use the pcici_t tag, they are considered 2.2 compatibility APIs
  pcici_t * pci_get_parent_from_tag(pcici_t tag);
  int       pci_get_bus_from_tag(pcici_t tag);

(The _from_tag suffix is used to prevent clashes with similarly named
 newbus PCI API functions)

Submitted by: Anton Berezin <tobez@plab.ku.dk>
Reviewed by:  Doug Rabson <dfr@nlsystems.com>
Reworked by:  Me (roger)
1999-05-31 22:13:37 +00:00
Peter Wemm
221752dfcc Take a shot at handling INTR_FAST and INTR_EXCL for CY_PCI_FASTINTR.
Bruce suggested a patch before but that was based on the old DRIVER_TYPE_*
interfaces.
1999-05-11 15:28:38 +00:00
Peter Wemm
3ec911d1bd Fix 'assignment used as truth value' on alpha. 1999-05-10 16:06:32 +00:00
Doug Rabson
566643e39e Move the declaration of the interrupt type from the driver structure
to the BUS_SETUP_INTR call.
1999-05-08 21:59:43 +00:00
Peter Wemm
250f167fe8 Minor style nit (this minor style.9 violation caused a grep miss here) 1999-05-07 16:33:08 +00:00
Peter Wemm
96e2f2b27d Zap some #if 0 code for wired PCI devices. This will look quite different
under new-bus.
1999-04-24 19:55:41 +00:00
Peter Wemm
e91896117b Well folks, this is it - The second stage of the removal for build support
for LKM's..
1999-04-17 08:36:07 +00:00
Peter Wemm
6182fdbda8 Bring the 'new-bus' to the i386. This extensively changes the way the
i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition.  eisa, isapnp and pccard* are
not yet using the new resource manager.  Once fully converted, all drivers
will be loadable, including PCI and ISA.

(Some other changes appear to have snuck in, including a port of Soren's
 ATA driver to the Alpha.  Soren, back this out if you need to.)

This is a checkpoint of work-in-progress, but is quite functional.

The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.

Approved by:	core
1999-04-16 21:22:55 +00:00
Eivind Eklund
1025c39862 pci_register_lkm can fail gracefully, so let it do that when there is
no more memory (M_WAITOK -> M_NOWAIT).  It may be called early enough
during boot that M_WAITOK isn't OK.  (In theory - right now it isn't called
from anywhere).
1999-04-11 02:46:20 +00:00
Stefan Eßer
441e39d74a Fix problem with zero valued map registers followed by valid map entries.
The previous code just ignored the invalid map register, but this gave
surprising results because of the way pci_map_port() associated the map
register offset supplied with a map entry in the map array.
1999-01-19 23:29:20 +00:00
John Polstra
0ec81012da Replace includes of <sys/kernel.h> with includes of
<sys/linker_set.h> in those files that use only the linker set
definitions.
1999-01-14 06:22:10 +00:00
Bruce Evans
92e81ca475 Let drivers specify interrupt flags (INTR_EXCL and/or INTR_FAST)
using the new pci_map_int_right() variant of pci_map_int().  Fast
interrupts work for PCI devices if and only if they are exclusive.
(The PCI interrupt mux doesn't support fast interrupts and can't
support a mixture of fast and slow interrupts even in principle.)

Don't assume that intrmask_t == unsigned in pci_map_int().
1999-01-13 04:59:19 +00:00
Matthew Dillon
35f069d08b pci_device pd_probe function changed from returning char * to returning
const char *.  Originally I was going to add casts from const char * to
    char * in some of the pci device drivers, but the reality is that the
    pci device probes return constant quoted strings.
1998-12-14 05:47:29 +00:00
Eivind Eklund
626bfed6f6 Bailing out when malloc returns != NULL will not help anybody. 1998-12-09 01:27:29 +00:00
Archie Cobbs
f1d19042b0 The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static
and local variables, goto labels, and functions declared but not defined.
1998-12-07 21:58:50 +00:00
Archie Cobbs
2127f26023 Examine all occurrences of sprintf(), strcat(), and str[n]cpy()
for possible buffer overflow problems. Replaced most sprintf()'s
with snprintf(); for others cases, added terminating NUL bytes where
appropriate, replaced constants like "16" with sizeof(), etc.

These changes include several bug fixes, but most changes are for
maintainability's sake. Any instance where it wasn't "immediately
obvious" that a buffer overflow could not occur was made safer.

Reviewed by:	Bruce Evans <bde@zeta.org.au>
Reviewed by:	Matthew Dillon <dillon@apollo.backplane.com>
Reviewed by:	Mike Spengler <mks@networkcs.com>
1998-12-04 22:54:57 +00:00
Peter Wemm
dd31125d72 Fix a warning (#include the apic_next_irq() prototype for APIC_IO) 1998-11-09 08:03:01 +00:00
Doug Rabson
a0ab71761c Add functions for accessing dense and bwx memory for pci devices. These
routines are necessary to allow the use of certain types of hardware on
the alpha, particularly a Myrinet card.

Submitted by: Andrew Gallatin <gallatin@cs.duke.edu>
1998-10-06 14:18:40 +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
Doug Rabson
8b761c8004 Remove a stupid hack of mine which prevented PCI io memory access on the alpha. 1998-08-07 08:20:36 +00:00
Doug Rabson
df9efa9a8b On the alpha, ports may be allocated above 64k.
Change the port address argument to pci_map_port to pci_port_t* which is
defined as u_int on the alpha, u_short on i386.  This is a stopgap with a
hopefully limited lifetime.

Discussed with: Stefan Esser <se@freebsd.org>
1998-07-22 08:39:08 +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
Steve Passe
831b792e7f Yank the casts. 1997-08-21 08:42:59 +00:00
Steve Passe
1fa27e1c81 A few more casts and a function declaration for warning free kernel builds. 1997-08-21 07:05:54 +00:00
Bruce Evans
1fd0b0588f Removed unused #includes. 1997-08-02 14:33:27 +00:00
Stefan Eßer
575d95316f Remove use of intrec*, use void* instead.
Disable test entries for wired PCI devices on bus 1.
1997-05-30 20:58:04 +00:00
Stefan Eßer
8ae85778a3 Add consistency check to the functions that map port or memory ranges:
Return failure, if the enable bit corresponding to the map type has not
been set in the command register. This feature was requested by Justin
Gibbs, who pointed out that some early PCI to PCI bridges do not correctly
support memory windows (I assume because of the risk of deadlocks that
have been taken care of in the PCI 2.2 spec) and that some BIOS clears
the memory address decode enable bit in the command register of the PCI
device, if it finds them behind such a bridge.
1997-05-28 10:10:02 +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