Commit Graph

58 Commits

Author SHA1 Message Date
Tejun Heo
5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00
Dominik Brodowski
d7646f7632 pcmcia: use dev_pm_ops for class pcmcia_socket_class
Instead of requiring PCMCIA socket drivers to call various functions
during their (bus) resume and suspend functions, register an own
dev_pm_ops for this class. This fixes several suspend/resume bugs
seen on db1xxx-ss, and probably on some other socket drivers, too.

With regard to the asymmetry with only _noirq suspend, but split up
resume, please see bug 14334 and commit 9905d1b411 .

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-03-24 11:00:11 +01:00
Jens Künzer
0d3a940de5 pcmcia: re-route Cardbus IRQ to ISA on ti1130 bridges if necessary
As the PCI irq pin of the ti1130 pcmcia bridge is not connected (at
least on some old IBM Thinkpad 760ED notebooks), the Cardbus IRQ has
to be routed to an ISA irq.

Part 3 of a series to allow the ISA irq to be used for Cardbus devices
if the socket's PCI irq is unusable.

[linux@dominikbrodowski.net: split up the original patch, commit message,
 cleanup]

Signed-off-by: Jens Kuenzer <Jens.Kuenzer@fpga.homeip.net>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-03-15 14:50:16 +01:00
Jens Künzer
ba8819e991 pcmcia: allow for cb_irq to differ from pci_dev's irq in yenta_socket
cb_irq is presumed to be the same as the pci_dev's irq. This won't be
true any more as soon as we allow the ISA irq to be used for Cardbus
devices. Therefore, use the pci_dev's irq explicitely whenever we
care about it.

Part 2 of a series to allow the ISA irq to be used for Cardbus devices
if the socket's PCI irq is unusable.

[linux@dominikbrodowski.net: split up the original patch, commit message]

Signed-off-by: Jens Kuenzer <Jens.Kuenzer@fpga.homeip.net>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-03-15 14:50:16 +01:00
Jens Künzer
28ca8dd71f pcmcia: honor saved flags in yenta_socket's I365_CSCINT register
Instead of overwriting the I365_CSCINT register, save the old value and
merely change the bits we care about.

Part 1 of a series to allow the ISA irq to be used for Cardbus devices
if the socket's PCI irq is unusable.

[linux@dominikbrodowski.net: split up the original patch, commit message]

Signed-off-by: Jens Kuenzer <Jens.Kuenzer@fpga.homeip.net>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-03-15 14:50:15 +01:00
Michal Pecio
f3d4ae431d yenta_socket: ENE CB712 CardBus bridge needs special treatment with Echo Audio Indigo soundcards
Indigos are well known for distortions when running on some buggy ENE
controllers.  There is a workaround in the yenta driver, but for some
reason it isn't activated on CB712.  However, I own a laptop with such
chip and it seems that it also is affected - I can clearly hear occasional
cracks, especially under heavy network load, and in Windows XP the card is
completely unusable.

This simple change fixed things for me.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=15191

[linux@dominikbrodowski.net: extend it to the other ENE bridges]
Signed-off-by: Michal Pecio <michal.pecio@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-03-02 22:19:53 +01:00
Linus Torvalds
8d37a371b6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6: (49 commits)
  pcmcia: validate late-added resources
  pcmcia: allow for extension of resource interval
  pcmcia: remove useless msleep in ds.c
  pcmcia: use read_cis_mem return value
  pcmcia: handle error in serial_cs config calls
  pcmcia: add locking to pcmcia_{read,write}_cis_mem
  pcmcia: avoid prod_id memleak
  pcmcia: avoid sysfs-related lockup for cardbus
  pcmcia: use state machine for extended requery
  pcmcia: delay re-scanning and re-querying of PCMCIA bus
  pcmcia: use pccardd to handle eject, insert, suspend and resume requests
  pcmcia: use ops_mutex for rsrc_{mgr,nonstatic} locking
  pcmcia: use mutex for dynid lock
  pcmcia: assert locking to struct pcmcia_device
  pcmcia: add locking documentation
  pcmcia: simplify locking
  pcmcia: add locking to struct pcmcia_socket->pcmcia_state()
  pcmcia: protect s->device_count
  pcmcia: properly lock skt->irq, skt->irq_mask
  pcmcia: lock ops->set_socket
  ...
2010-02-27 16:18:30 -08:00
Bjorn Helgaas
89a74ecccd PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refs
No functional change; this converts loops that iterate from 0 to
PCI_BUS_NUM_RESOURCES through pci_bus resource[] table to use the
pci_bus_for_each_resource() iterator instead.

This doesn't change the way resources are stored; it merely removes
dependencies on the fact that they're in a table.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23 09:43:31 -08:00
Wolfram Sang
3516952909 pcmcia/yenta: add module parameter for O2 speedups
O2-bridges can do read prefetch and write burst. However, for some combinations
of older bridges and cards, this causes problems, so it is disabled for those
bridges. Now, as some users know their setup works with the speedups enabled, a
new parameter is introduced to the driver. Now, a user can specifically enable
or disable these features, while the default is what we have today: detect the
bridge and decide accordingly. Fixes Bugzilla entry 15014.

Simplify and unify the printouts, fix a whitespace issue while we are here.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Tested-by: frodone@gmail.com
[linux@dominikbrodowski.net: whitespace fixes]
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-02-17 17:37:35 +01:00
Alexey Dobriyan
471452104b const: constify remaining dev_pm_ops
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:25 -08:00
Dominik Brodowski
9fea84f46a pcmcia: CodingStyle fixes
Fix several CodingStyle issues in drivers/pcmcia/ . checkpatch.pl no longer
reports errors in the PCMCIA core. The remaining warnings mostly relate to
wrong indent -- PCMCIA historically used 4 spaces --, to lines over 80
characters and to hundreds of typedefs. The cleanup of those will follow
in the future.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2009-12-07 22:23:40 +01:00
Rafael J. Wysocki
9905d1b411 PM / yenta: Split resume into early and late parts (rev. 4)
Commit 0c570cdeb8
(PM / yenta: Fix cardbus suspend/resume regression) caused resume to
fail on systems with two CardBus bridges.  While the exact nature
of the failure is not known at the moment, it can be worked around by
splitting the yenta resume into an early part, executed during the
early phase of resume, that will only resume the socket and power it
up if there was a card in it during suspend, and a late part,
executed during "regular" resume, that will carry out all of the
remaining yenta resume operations.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=14334, which is a
listed regression from 2.6.31.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Reported-by: Stephen J. Gowdy <gowdy@cern.ch>
Tested-by: Jose Marino <braket@hotmail.com>
2009-11-03 10:54:58 +01:00
Rafael J. Wysocki
0c570cdeb8 PM / yenta: Fix cardbus suspend/resume regression
Since 2.6.29 the PCI PM core have been restoring the standard
configuration registers of PCI devices in the early phase of
resume.  In particular, PCI devices without drivers have been handled
this way since commit 355a72d75b
(PCI: Rework default handling of suspend and resume).  Unfortunately,
this leads to post-resume problems with CardBus devices which cannot
be accessed in the early phase of resume, because the sockets they
are on have not been woken up yet at that point.

To solve this problem, move the yenta socket resume to the early
phase of resume and, analogously, move the suspend of it to the late
phase of suspend.  Additionally, remove some unnecessary PCI code
from the yenta socket's resume routine.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=13092, which is a
post-2.6.28 regression.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Florian <fs-kernelbugzilla@spline.de>
Cc: stable@kernel.org
2009-09-29 00:11:03 +02:00
Rafael J. Wysocki
827b4649d4 PM / PCMCIA: Drop second argument of pcmcia_socket_dev_suspend()
pcmcia_socket_dev_suspend() doesn't use its second argument, so it
may be dropped safely.

This change is necessary for the subsequent yenta suspend/resume fix.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org
2009-09-29 00:10:41 +02:00
Mike Frysinger
734f3fa18d pcmcia: yenta: add missing __devexit marking
The remove member of the pci_driver yenta_cardbus_driver uses
__devexit_p(), so the remove function itself should be marked with
__devexit.  Even more so considering the probe function is marked with
__devinit.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: Daniel Ritz <daniel.ritz-ml@swissonline.ch>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-22 07:17:42 -07:00
Matthew Wilcox
852710d9fd yenta: Use pci_claim_resource
Instead of open-coding pci_find_parent_resource and request_resource,
just call pci_claim_resource.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-09-09 13:29:19 -07:00
Dominik Brodowski
dd797d81d3 pcmcia: use dev_printk and dev_dbg in yenta_socket
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2008-08-23 01:49:44 +02:00
Randy Dunlap
78187865ef pcmcia: fix kernel-doc comments
Fix kernel-doc comments in drivers/pcmcia/:

- ti113x.h does not contain kernel-doc, so don't use /** to begin a doc
  comment
- yenta_socket.c: remove /** on non-kernel-doc comments;
  escape the ':' in an "http:" comment so that it won't be treated as a
  section heading;
- cs.c: remove /** on non-kernel-doc comments & add function parameter info
- ds.c: fix function parameter info

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-10 19:43:54 -08:00
Tim Schmielau
cd354f1ae7 [PATCH] remove many unneeded #includes of sched.h
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there.  Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.

To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.

Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm.  I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-14 08:09:54 -08:00
Greg Kroah-Hartman
873733188a Driver core: convert pcmcia code to use struct device
Converts from using struct "class_device" to "struct device" making
everything show up properly in /sys/devices/ with symlinks from the
/sys/class directory.

Cc: <linux-pcmcia@lists.infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-07 10:37:11 -08:00
Jeff Garzik
4deb7c1ed2 [PATCH] PCMCIA: handle sysfs, PCI errors
Handle sysfs and PCI errors correctly.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-10-25 21:59:46 -04:00
Alexey Dobriyan
f237de58b1 [PATCH] CONFIG_PM=n slim: drivers/pcmcia/*
Remove some code which is unneeded if CONFIG_PM=n.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-10-25 21:59:41 -04:00
David Howells
7d12e780e0 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.

The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around.  On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).

Where appropriate, an arch may override the generic storage facility and do
something different with the variable.  On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.

Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions.  Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller.  A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.

I've build this code with allyesconfig for x86_64 and i386.  I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.

This will affect all archs.  Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:

	struct pt_regs *old_regs = set_irq_regs(regs);

And put the old one back at the end:

	set_irq_regs(old_regs);

Don't pass regs through to generic_handle_irq() or __do_IRQ().

In timer_interrupt(), this sort of change will be necessary:

	-	update_process_times(user_mode(regs));
	-	profile_tick(CPU_PROFILING, regs);
	+	update_process_times(user_mode(get_irq_regs()));
	+	profile_tick(CPU_PROFILING);

I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().

Some notes on the interrupt handling in the drivers:

 (*) input_dev() is now gone entirely.  The regs pointer is no longer stored in
     the input_dev struct.

 (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking.  It does
     something different depending on whether it's been supplied with a regs
     pointer or not.

 (*) Various IRQ handler function pointers have been moved to type
     irq_handler_t.

Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 15:10:12 +01:00
Thomas Gleixner
dace145374 [PATCH] irq-flags: misc drivers: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:50 -07:00
Randy Dunlap
6600521607 [PATCH] pcmcia: fix kernel-doc function name
Fix kernel-doc function name spello.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-06-30 22:09:12 +02:00
Alex Williamson
59e35ba125 [PATCH] pcmcia: TI PCIxx12 CardBus controller support
The patch below adds support for the TI PCIxx12 CardBus controllers.
This seems to be sufficient to detect the cardbus bridge on an HP nc6320
and works with an orinoco wifi card.

Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-06-30 22:09:11 +02:00
Bernhard Kaindl
b435261b1e [PATCH] yenta: fix hidden PCI bus numbers
Fixup the subordinate number parent bridge of yenta Cardbus Bridges
before the PCI bus scan starts to make the cardbus cards which are
otherwise hidden for PCI scans work.

Signed-off-by: Bernhard Kaindl <bk@suse.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-06-30 22:09:09 +02:00
Daniel Ritz
d250a48104 [PATCH] yenta: do power-up only after socket is configured
Power-up the card only after the socket is configured. power-down in
the old place. The point is not to power-up the card before the interrupt
routing is set up correctly.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-06-30 22:09:09 +02:00
Dominik Brodowski
8084b372ad [PATCH] pcmcia: kzalloc conversion
Convert users of kmalloc and memset to kzalloc

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-06 00:28:06 +01:00
Daniel Ritz
63e7ebd064 [PATCH] yenta: make bridge specific init code configurable
Make the bridge specific initialization code config options depending on
CONFIG_EMBEDDED. Config options for TI/EnE, Toshiba, Ricoh and O2Micro are
available. Disabling all of the specific tweaks cuts off more than half
of yenta_socket.ko.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-05 23:41:23 +01:00
Dominik Brodowski
9da4bc6d6a [PATCH] pcmcia: remove get_socket callback
The .get_socket callback is never used by the PCMCIA core, therefore remove
it.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-05 23:41:09 +01:00
Daniel Ritz
e4115805cf [PATCH] yenta: optimize interrupt handler
Don't waste cpu time in yenta interrupt handler when the interrupt was for
another device.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2006-01-05 23:41:00 +01:00
Linus Torvalds
030ee39c0f pcmcia: add socket register data to sysfs for yenta devices
It's simple, and it's a good debugging aid.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-28 13:55:08 -07:00
Daniel Ritz
f9cb8b71e7 [PATCH] yenta: more ENE bridges
Adds better support for the CB-710, CB-712, CB-720 and CB-722 bridges from EnE

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2005-09-26 13:11:29 +02:00
Daniel Ritz
6c1a10dba9 [PATCH] yenta: add support for more TI bridges
Support some more TI cardbus bridges.  most of them are multifunction
devices which adds 1394 controllers, smartcard readers etc.  this could
also help with the various problems with the XX21 controllers seen on the
linux-pcmcia list.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2005-09-26 13:11:27 +02:00
Dominik Brodowski
8e5d17ebe4 [PATCH] yenta: tiny cleanup
pci_set_power_state is not needed, as we call pci_enable_device() somewhere
else.  Also, the resource we write to PCI_BASE_ADDRESS_0 needs to be converted
to bus-centric view first.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2005-09-26 13:11:25 +02:00
Daniel Ritz
a413c09094 [PATCH] yenta: don't mess with bridge control register
In interrupt probing (both ISA and PCI) the bridge control register is used
to change interrupt routing to ISA or PCI by changing bit 7.  But this bit
only controls the routing of card functional interrupts, not the CSC
interrupts which are used for interrupt probing.

A bad side effect of messing with this register in yenta_probe_irq() is
that it can lead to irq storms if a card is inserted and already powered by
the BIOS.

Usage in yenta_sock_init() and yenta_config_init() seem to be fishy as well.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2005-09-26 13:11:24 +02:00
Daniel Ritz
8c3520d4eb [PATCH] yenta: auto-tune EnE bridges for CardBus cards
Echo Audio cardbus products are known to be incompatible with EnE bridges.
in order to maybe solve the problem a EnE specific test bit has to be set,
another cleared...but other setups have a good chance to break when just
forcing the bits.  so do the whole thingy automatically.

The patch adds a hook in cb_alloc() that allows special tuning for the
different chipsets.  for ene just match the Echo products and set/clear the
test bits, defaults to do the same thing as w/o the patch to not break
working setups.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Cc: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2005-09-26 13:09:20 +02:00
Linus Torvalds
5a23f34798 Fix yenta error message when unable to find a bus assignment
And mention 'pci=assign-busses' as a possible fix.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-14 13:05:17 -07:00
Ivan Kokshaysky
c7fb0b35ad [PATCH] yenta oops fix
In some cases, especially on modern laptops with a lot of PCI and
cardbus bridges, we're unable to assign correct secondary/subordinate
bus numbers to all cardbus bridges due to BIOS limitations unless
we are using "pci=assign-busses" boot option.
So some cardbus controllers may not have attached subordinate pci_bus
structure, and yenta driver must cope with it - just ignore such cardbus
bridges.

For example, see https://bugzilla.novell.com/show_bug.cgi?id=113778

Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-14 12:28:15 -07:00
Daniel Ritz
c8751e4c0b [PATCH] pcmcia/yenta: avoid PCI write posting problem
extend cb_writel(), exca_writeb(), exca_writel() to do a read[lb]() after
the write[lb]() to avoid possible problem with PCI write posting.

Seems to fix Bug #5061.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09 13:57:47 -07:00
Dominik Brodowski
b3743fa444 [PATCH] yenta: share code with PCI core
Share code between setup-bus.c and yenta_socket.c: use the write-out code of
resources to the bridge also in yenta_socket.c, as it provides useful debug
output.  In addition, it fixes the bug that the CPU-centric resource view
might need to be transferred to the PCI-centric view: setup-bus.c does that,
while yenta-socket.c did not.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09 13:57:47 -07:00
Daniel Ritz
ea2f1590aa [PATCH] yenta: make ToPIC95 bridges work with 16bit cards
ToPIC95 brides (and maybe some other too) require to use the ExCA registers
to power up the socket if a 16bit card is pluged.  allow socket drivers to
set a flag so that yenta does just that.  also clean up yenta_get_status()
a bit to use the new yenta_get_power() function.

Side note: ToPIC97 bridges (at least in Rev.5 i have) don't require this.

Ryan Underwood <nemesis-lists@icequake.net> said:

 According to the mail that David Hinds received from a Toshiba engineer,
 ToPIC95 and 97 do require this, and ToPIC100 does not.  Maybe you have a
 later revision.

 For all chips, 16-bit cards can be enabled through ExCA.  So doesn't it
 make sense just to make this the default behavior for all Toshiba chips,
 to avoid corner cases showing up later?

Daniel responded:

 I disagree with ryan to change anything for topic97 bridges.  they work.
 and I couldn't find (read google) any report of a topic97 breaking on
 applying power with the CB registers.

 I'm having several toshba notebooks at work (and home) with topic95,97,100
 bridges.  Only the ones with a topic95 didn't work.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:21 -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
Paul Mackerras
f7d1d23c30 [PATCH] Obvious bugfix for yenta resource allocation
Recent changes (well, dating from 12 July) have broken cardbus on my
powerbook: I get 3 messages saying "no resource of type xxx available,
trying to continue", and if I plug in my wireless card, it complains
that there are no resources allocated to the card.  This all worked in
2.6.12.

Looking at the code in yenta_socket.c, function yenta_allocate_res,
it's obvious what is wrong: if we get to line 639 (i.e. there wasn't a
usable preassigned resource), we will always flow through to line 668,
which is the printk that I was seeing, even if a resource was
successfully allocated.  It looks to me as though there should be a
return statement after the two config_writel's in each of the 3
branches of the if statements, so that the function returns after
successfully setting up the resource.

The patch below adds these return statements, and with this patch,
cardbus works on my powerbook once again.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-02 08:28:48 -07:00
Linus Torvalds
889371f61f Revert "yenta free_irq on suspend"
ACPI is wrong.  Devices should not release their IRQ's on suspend and
re-aquire them on resume.  ACPI should just re-init the IRQ controller
instead of breaking most drivers very subtly.

Breakage reported by Hugh Dickins <hugh@veritas.com>

Undo: d8c4b4195c

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-30 13:41:56 -07:00
Daniel Ritz
d8c4b4195c [PATCH] yenta: free_irq() on suspend.
Resume doesn't seem to work without.

Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-28 08:39:01 -07:00
Linus Torvalds
3f603ed319 Merge master.kernel.org:/pub/scm/linux/kernel/git/lenb/linux-2.6 2005-07-12 16:04:50 -07:00
Dominik Brodowski
eb0a90b497 [PATCH] yenta: allocate resource fixes
The current CardBus window allocation code in yenta_socket is unable to handle
the transparent PCI-bridge handling update in 2.6.13.  We need to check _all_
resources of a given type to find the best one suitable for CardBus windows,
not just the first one.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-12 16:01:00 -07:00
Dominik Brodowski
278798357d [PATCH] yenta: same resources in same structs
drivers/pci/setup-bus.c enumerates the CardBus windows (bus->resources[])

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-12 16:01:00 -07:00