Commit Graph

2520 Commits

Author SHA1 Message Date
Linus Torvalds
0893dd327f Merge head 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev 2005-08-10 11:56:19 -07:00
Pierre Ossman
3462b92541 [PATCH] wbsd version bump
Even though the changes are minor for the next release an increasing
version number simplifies my support issues.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-10 11:08:56 -07:00
Linus Torvalds
435d444a53 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2005-08-10 11:05:28 -07:00
Alexander Nyberg
22d0def9d0 [PATCH] ns558 list handling fix
Need to use list_for_entry_safe(), as we're removing items during the
traversal.  list_for_each_entry() uses the first ptr also as an iterator, if
you kfree() it slab takes it, might poison it and then you try to use it to
iterate to the next object in list.

Cc: Vojtech Pavlik <vojtech@suse.cz>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-10 11:03:02 -07:00
Ralf Baechle DL5RB
c0438174e8 [PATCH] 6pack persistence fix
Fix the p-persistence CSMA algorithm which in simplex mode was starting
with a slottime delay before doing anything else as if there was carrier
collision resulting in bad performance on simplex links.

Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-10 11:03:02 -07:00
Tejun Heo
42517438f9 libata: fix EH-related lockup by properly cleaning EH command list
Yet another hack due to the fact that libata is the only user of SCSI's
->eh_strategy_handler() hook.
2005-08-10 13:38:27 -04:00
Tejun Heo
fae009847c [PATCH] sata: fix sata_sx4 dma_prep to not use sg->length
sata_sx4 directly references sg->length to calculate total_len in
pdc20621_dma_prep().  This is incorrect as dma_map_sg() could have
merged multiple sg's into one and, in such case, sg->length doesn't
reflect true size of the entry.  This patch makes it use
sg_dma_len(sg).

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-10 13:34:58 -04:00
Linus Torvalds
48d28fd55e Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2005-08-10 09:36:02 -07:00
Nicolas Pitre
8d37226677 [PATCH] ARM: 2846/1: proper handling of CKEN for pxafb
Patch from Nicolas Pitre

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-10 16:45:13 +01:00
Christoph Lameter
86b3786078 [PATCH] Fix ide-disk.c oops caused by hwif == NULL
1. Move hwif_to_node to ide.h

2. Use hwif_to_node in ide-disk.c

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 20:21:31 -07:00
Michael Krufky
aeb3f76350 [PATCH] DVB: lgdt330x frontend: some bug fixes & add lgdt3303 support
This patch removes the tda9887 stuff from lgdt330x.c.  It's experimental code
which wasn't supposed to leak out and we don't want it in 2.6.13.

Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Acked-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 17:59:52 -07:00
Michael Krufky
e179d8b055 [PATCH] dvb: lgdt330x frontend: trivial text cleanups
Two trivial text changes in Kconfig and lgdt330x.c

Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 17:59:52 -07:00
Markus Lidel
dc9352a42c [PATCH] I2O: added pci_request_regions() before using the controller
Added pci_request_regions() before using the controller to avoid duplicate
usage of the I2O controller when the dpt_i2o driver and I2O subsystem is
loaded at the same time.

Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 17:59:52 -07:00
Linus Torvalds
68e681e87f Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2005-08-09 16:02:15 -07:00
David S. Miller
38c1844b31 [SPARC]: envctrl: ERR_PTR() --> PTR_ERR()
Fix thinko in Christoph's changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-09 14:43:14 -07:00
Christoph Hellwig
4875ccdb30 [SPARC]: remove ifdef CONFIG_PCI from envctrl.c
The driver already depends on CONFIG_PCI in Kconfig.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-09 14:39:10 -07:00
Christoph Hellwig
bc2406684b [SPARC]: Use kthread infrastructure in bbc_envctrl
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-09 13:32:25 -07:00
Christoph Hellwig
218b29e0c3 [SPARC]: Use kthread infrastructure in envctrl
envctrl currently uses very odd ways to stop a thread, using various
things that should be exposed to drivers at all.

This patch (which is untested as I don't have sparc hardware) switches
it to use the proper kthread infrastructure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-09 12:30:07 -07:00
Markus Lidel
db29e85a7e [PATCH] i2o: remove new configuration API
Remove new configuration API from i2o_config

The API-patch is still available from the I2O website (which is mentioned in
the kernel config now).  It is removed because it creates a new binary
sysfs-attribute, which doesn't have the limitiation of 4k.  Expect for the
Adaptec controllers, which has a limitation in the hardware this attribute
doesn't make sense anywhere else.  Until the sysfs API provides an attribute
which doesn't buffer (like firmware) and let access to at least 64k blocks i
provide a separate patch...

(akpm: basically, this API was introduced post-2.6.12 and Markus wants to pull
it out before 2.6.13).

Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 12:08:22 -07:00
Kumar Gala
36d2f5a182 [PATCH] cpm_uart: needs some love to compile with GCC4.0.1
Fixed problems so we can build with gcc-4.0.1

Signed-off-by: Peter Schaefer-Hutter <peter.schaefer-hutter@tfk-racoms.com>
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 12:08:22 -07:00
Kumar Gala
311c46273f [PATCH] cpm_uart: Fix dpram allocation and non-console uarts
* Makes dpram allocations work
* Makes non-console UART work on both 8xx and 82xx
* Fixed whitespace in files that were touched

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Pantelis Antoniou <panto@intracom.gr>
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 12:08:22 -07:00
Ralf Baechle
a242b44da6 [PATCH] Build fix for the Sibyte I2C driver
Compile fix for the BCM1250 I2C driver.

Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 12:08:21 -07:00
Wim Van Sebroeck
01df0e3a79 [PATCH] i8xx_tco.c: arm watchdog only when started
i8xx_tco.c v0.08: only "arm" the watchdog when the watchdog has been
started.  (Kernel Bug 4251: system reset when battery is read and i8xx_tco
driver loaded)

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-09 12:08:21 -07:00
Salyzyn, Mark
5bb8345db8 [SCSI] dpt_i2o pci_request_regions fix
Originally From: Andrew Morton <akpm@osdl.org>

Altered By: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>

There is an additional 'build fix' patch that Andrew Morton submitted on
the kernel list (I have changed out his dpr_i2o with dpt_i2o below
though).

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-09 12:09:53 -05:00
Linus Torvalds
dc836b5b6f Revert "[PATCH] PCI: restore BAR values..."
Revert commit fec59a711e, which is
breaking sparc64 that doesn't have a working pci_update_resource.

We'll re-do this after 2.6.13 when we'll do it all properly.
2005-08-08 18:46:09 -07:00
Dave Jones
138b9dd1fd [PATCH] icn driver fails to unload when no hardware present
Fix a null dereference in module unload path.

Found by a simple modprobe icn ; rmmod icn

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-08 16:21:32 -07:00
Linus Torvalds
92e52b2e82 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2005-08-08 16:06:01 -07:00
James.Smart@Emulex.Com
5c44cd2afa [SCSI] fix target scanning oops with fc transport class
We have some nasty issues with 2.6.12-rc6. Any request to scan on
the lpfc or qla2xxx FC adapters will oops. What is happening is the
system is defaulting to non-transport registered targets, which
inherit the parent of the scan. On this second scan, performed by
the attribute, the parent becomes the shost instead of the rport.
The slave functions in the 2 FC adapters use starget_to_rport()
routines, which incorrectly map the shost as an rport pointer.

Additionally, this pointed out other weaknesses:
- If the target structure is torn down outside of the transport,
  we have no method for it to be regenerated at the proper parent.
- We have race conditions on the target being allocated by both
  the midlayer scan (parent=shost) and by the fc transport
  (parent=rport).

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-08 17:14:55 -05:00
Linus Torvalds
b612cacb02 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2005-08-08 12:19:24 -07:00
Michael Krufky
1963c907b2 [PATCH] dvb: lgdt330x frontend: some bug fixes & add lgdt3303 support
- Structural changes within lgdt330x driver, framework now supports
  both chips... tested OK on lgdt3302 and lgdt3303.
- Add LG/TUA6034 dvb_pll_desc for ATSC with LG TDVS-H062F & DViCO FusionHDTV5.
- Fixed LGDT330X signal strength: For now, always set it to 0.
- Corrected LGDT330X boundary condition error in read_snr: dB calculation.

Signed-off-by: Mac Michaels <wmichaels1@earthlink.net>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-08 11:49:57 -07:00
Cornelia Huck
66aea23ff8 [PATCH] s390: use klist in qeth driver
From: Martin Schwidesky <schwidefsky@de.ibm.com>

Convert qeth to the new klist interface and make it compiling again.

Signed-off-by: Frank Pavlic <pavlic@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-08 11:49:57 -07:00
Ivan Kokshaysky
6d85f29bb5 [PATCH] VIA VT8235 PCI quirk
Like many other southbridges from different manufacturers, VIA VT8235
chip has two non-standard BARs for power management and SMBus registers
(see the datasheet at http://www.via.com.tw).

This new quirk routine fixes boot problem with 2.6.13-rc2/rc6 kernels on
Targa Visionary 811 Athlon64 laptop, as reported by Mikael Pettersson
<mikpe@csd.uu.se>.

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-08 11:46:24 -07:00
Antonino Daplas
db6778db7e [PATCH] nvidiafb: Fix initial display corruption on certain laptops
Reported by:Vincent Fortier (Bugzilla Bug 4768)

"At boot time the screen appears moved to the mid right portion of the actual
video pannel making the end of the line appears at the left edge...  It simply
looks like moved half way to the right"

His particular hardware has a display with an unusual dimension (1920x1200) but
unfortunately has no EDID block. None of the entries in the global mode
database is correct for this particular display, and it particularly has
difficulty scaling up 640x480 (the default startup mode of nvidiafb) to
1920x1200 which causes the above described problem.

1, Add 1920x1200 to the global mode database.

2. Let nvidiafb base the startup mode from the flatpanel dimensions only if the
  EDID block is absent, no boot mode parameter is specified by the user, and
  a flatpanel/LCD display is attached.

Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-08 11:46:24 -07:00
James Bottomley
9c472dd919 [SCSI] Bug 4940 Repeatable Kernel Panic on Adaptec 2015S I20 device on bootup
From: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>

Prevent driver from loading if another driver (i2o) has already claimed
the resources associated with the card. Discussion associated with this
bug can be referenced at http://bugzilla.kernel.org/show_bug.cgi?id=4940
where it was agreed to use pci_request_regions in both the dpt_i2o and
the i2o driver to prevent both drivers loading on the same adapter(s).

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>

Rejections fixed up and

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-08-08 11:51:38 -05:00
Ivan Kokshaysky
cf7bee5a0b [PATCH] Fix restore of 64-bit PCI BAR's
For 64-bit BAR[i] only pci_dev->resource[i] is valid, ->resource[i+1]
slot is unused and contains zeroes in all fields.

So when we update a PCI BAR, all we need is just to check that we're
going to update a _valid_ resource.

Also make sure to write high bits - use "x >> 16 >> 16" (rather than the
simpler ">> 32") to avoid warnings on 32-bit architectures where we're
not going to have any high bits.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-07 09:50:56 -07:00
Christoph Hellwig
71abe99980 [PATCH] ARM: switch fd1772.c from sleep_on to wait_event
Doesn't make the local irq disabling around it less buggy, but at
least we replace the offender with the right kind of primitive.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-07 14:23:42 +01:00
Russell King
fc1df37e3b [PATCH] ARM: Make sa1100fb_display_dma_period() an inline function
This function produces a warning when CPU_FREQ=n.  Since it's a very
simple calculation, make it inline instead of adding preprocessor
directives around it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-07 14:20:26 +01:00
David S. Miller
7d3f4c9772 [TG3]: Save initial PCI state before registering the netdevice.
Else on SMP systems it is possible for hotplug to execute,
invoke tg3_open(), and end up loading the uninitialized
PCI register save area into the card.

Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-06 06:35:48 -07:00
Marcel Holtmann
66e8b6c31b [Bluetooth] Remove unused functions and cleanup symbol exports
This patch removes the unused bt_dump() function and it also removes
its BT_DMP macro. It also unexports the hci_dev_get(), hci_send_cmd()
and hci_si_event() functions.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2005-08-06 12:36:51 +02:00
Marcel Holtmann
e9a3e671c0 [Bluetooth] Kill redundant NULL checks before kfree()
There's no need to check for NULL before calling kfree() on a pointer.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2005-08-06 12:36:47 +02:00
Marcel Holtmann
cad0f6270c [Bluetooth] Send HCI_Reset for Kensington dongle
The Kensington Bluetooth USB adapter is based on a Broadcom chip
with the HID proxy support. To initialize these kind of devices
correctly it is necessary to send HCI_Reset as the first command.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2005-08-06 12:36:36 +02:00
Tejun Heo
ba02508248 [PATCH] blk: fix tag shrinking (revive real_max_size)
My patch in commit fa72b903f7 incorrectly
removed blk_queue_tag->real_max_depth.

The original resize implementation was incorrect in the following
points.

 * actual allocation size of tag_index was shorter than real_max_size,
   but assumed to be of the same size, possibly causing memory access
   beyond the allocated area.
 * bits in tag_map between max_deptn and real_max_depth were
   initialized to 1's, making the tags permanently reserved.

In an attempt to fix above two bugs, I had removed allocation optimization
in init_tag_map and real_max_size.  Tag map/index were allocated and freed
immediately during resize.

Unfortunately, I wasn't considering that tag map/index can be resized
dynamically with tags beyond new_depth active.  This led to accessing
freed area after shrinking tags and led to the following bug reporting
thread on linux-scsi.

   http://marc.theaimsgroup.com/?l=linux-scsi&m=112319898111885&w=2

To fix the problem, I've revived real_max_depth without allocation
optimization in init_tag_map, and Andrew Vasquez confirmed that the
problem was fixed.  As Jens is not going to be available for a week, he
asked me to make sure that this patch reaches you.

   http://marc.theaimsgroup.com/?l=linux-scsi&m=112325778530886&w=2

Also, a comment was added to make sure that real_max_size is needed for
dynamic shrinking.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-05 13:43:16 -07:00
Marcel Selhorst
f9abb02040 [PATCH] tpm_infineon: Support for new TPM 1.2 and PNPACPI
This patch includes support for the new Infineon Trusted Platform Module
SLB 9635 TT 1.2 and does further include ACPI-support for both chip
versions (SLD 9630 TT 1.1 and SLB9635 TT 1.2).  Since the ioports and
configuration registers are not correctly set on some machines, the
configuration is now done via PNPACPI, which reads out the correct values
out of the DSDT-table.  Note that you have to have CONFIG_PNP,
CONFIG_ACPI_BUS and CONFIG_PNPACPI enabled to run this driver (assuming
that mainboards including a TPM do have the need for ACPI anyway).

Signed-off-by: Marcel Selhorst <selhorst@crypto.rub.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-05 12:22:37 -07:00
Linus Torvalds
107207aa85 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2005-08-05 07:42:20 -07:00
Petr Vandrovec
403fe5ae57 [PATCH] rtc: msleep() cannot be used from interrupt
Since the beginning of July my Opteron box was randomly crashing and
being rebooted by hardware watchdog.  Today it finally did it in front
of me, and this patch will hopefully fix it.

The problem is that at the end of June (the 28th, to be exact: commit
47f176fdaf, "[PATCH] Using msleep()
instead of HZ") rtc_get_rtc_time was converted to use msleep() instead
of busy waiting.  But rtc_get_rtc_time is used by hpet_rtc_interrupt,
and scheduling is not allowed during interrupt.  So I'm reverting this
part of original change, replacing msleep() back with busy loop.

The original code was busy waiting for up to 20ms, but on my hardware in
the worst case update-in-progress bit was asserted for at most 363
passes through loop (on 2GHz dual Opteron), much less than even one
jiffie, not even talking about 20ms.  So I changed code to just wait
only as long as necessary.  Otherwise when RTC was set to generate
8192Hz timer, it stopped doing anything for 20ms (160 pulses were
skipped!) from time to time, and this is rather suboptimal as far as I
can tell.

Signed-off-by: Petr Vandrovec <vandrove@vc.cvut.cz>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-05 06:57:44 -07:00
Olav Kongas
f10eff2683 [PATCH] USB: Fix setup packet initialization in isp116x-hcd
When recently addressing remarks by Alexey Dobriyan about
the isp116x-hcd, I introduced a bug in the driver. Please
apply the attached patch to fix it.

Signed-off-by: Olav Kongas <ok@artecdesign.ee>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04 21:32:46 -07:00
David Brownell
7dedacf427 [PATCH] USB: ehci: microframe handling fix
This patch has a one line oops fix, plus related cleanups.

 - The bugfix uses microframe scheduling data given to the hardware to
   test "is this a periodic QH", rather than testing for nonzero period.
   (Prevents an oops by providing the correct answer.)

 - The cleanup going along with the patch should make it clearer what's
   going on whenever those bitfields are accessed.

The bug came about when, around January, two new kinds of EHCI interrupt
scheduling operation were added, involving both the high speed (24 KBytes
per millisec) and low/full speed (1-64 bytes per millisec) microframe
scheduling.  A driver for the Edirol UA-1000 Audio Capture Unit ran into
the oops; it used one of the newly supported high speed modes.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04 21:32:46 -07:00
Pete Zaitcev
003ba51535 [PATCH] USB: ub documentation update
The patch which went in was correct, but not quite what I had in mind.
Here is a patch to update that a little bit. Original patch is at:
 http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4749f32da939d4e4160541b2cadc22492bb507ec

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04 21:32:46 -07:00
Dominik Brodowski
43c3473552 [PATCH] pci and yenta: pcibios_bus_to_resource
In yenta_socket, we default to using the resource setting of the CardBus
bridge.  However, this is a PCI-bus-centric view of resources and thus needs
to be converted to generic resources first.  Therefore, add a call to
pcibios_bus_to_resource() call in between.  This function is a mere wrapper on
x86 and friends, however on some others it already exists, is added in this
patch (alpha, arm, ppc, ppc64) or still needs to be provided (parisc -- where
is its pcibios_resource_to_bus() ?).

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04 21:32:46 -07:00
John W. Linville
fec59a711e [PATCH] PCI: restore BAR values after D3hot->D0 for devices that need it
Some PCI devices (e.g. 3c905B, 3c556B) lose all configuration
(including BARs) when transitioning from D3hot->D0.  This leaves such
a device in an inaccessible state.  The patch below causes the BARs
to be restored when enabling such a device, so that its driver will
be able to access it.

The patch also adds pci_restore_bars as a new global symbol, and adds a
correpsonding EXPORT_SYMBOL_GPL for that.

Some firmware (e.g. Thinkpad T21) leaves devices in D3hot after a
(re)boot.  Most drivers call pci_enable_device very early, so devices
left in D3hot that lose configuration during the D3hot->D0 transition
will be inaccessible to their drivers.

Drivers could be modified to account for this, but it would
be difficult to know which drivers need modification.  This is
especially true since often many devices are covered by the same
driver.  It likely would be necessary to replicate code across dozens
of drivers.

The patch below should trigger only when transitioning from D3hot->D0
(or at boot), and only for devices that have the "no soft reset" bit
cleared in the PM control register.  I believe it is safe to include
this patch as part of the PCI infrastructure.

The cleanest implementation of pci_restore_bars was to call
pci_update_resource.  Unfortunately, that does not currently exist
for the sparc64 architecture.  The patch below includes a null
implemenation of pci_update_resource for sparc64.

Some have expressed interest in making general use of the the
pci_restore_bars function, so that has been exported to GPL licensed
modules.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04 21:32:46 -07:00