Commit Graph

32 Commits

Author SHA1 Message Date
Zachary Amsden e6a9918c96 [PATCH] x86: Fixed pnp bios limits
PnP BIOS data, code, and 32-bit entry segments all have fixed limits as well;
set them in the GDT rather than adding more code.  It would be nice to add
these fixups to the boot GDT rather than setting the GDT for each CPU; perhaps
I can wiggle this in later, but getting it in before the subsys init looks
tricky.

Also, make some progress on deprecating the ugly Q_SET_SEL macros.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: "Seth, Rohit" <rohit.seth@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:35 -08:00
Zachary Amsden 5fe9fe3c6f [PATCH] x86: Pnp byte granularity
The one remaining caller of set_limit, the PnP BIOS code, calls into the PnP
BIOS, passing kernel parameters in and out.  These parameteres may be passed
from arbitrary kernel virtual memory, so they deserve strict protection to
stop a bad BIOS from smashing beyond the object size.

Unfortunately, the use of set_limit was badly botching this by setting the
limit in terms of pages, when it really should have byte granularity.

When doing this, I discovered my BIOS had the buggy code during the "get
system device node" call:

 mov ax, es:[bx]

Which is harmless, but has a trivial workaround.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: "Seth, Rohit" <rohit.seth@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:35 -08:00
Zachary Amsden 5702d0f742 [PATCH] x86: Pnp segments in segment h
Move PnP BIOS segment definitions into segment.h; the segments are reserved
here, so they might as well be defined here as well.

Note I didn't do this for APM BIOS, as Macintosh and other systems use those
values to emulate APM in some scary way I don't want to understand.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Acked-by: "Seth, Rohit" <rohit.seth@intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:34 -08:00
Zachary Amsden 7c4cb60e5b [PATCH] x86: GDT alignment fix
Make GDT page aligned and page padded to support running inside of a
hypervisor.  This prevents false sharing of the GDT page with other hot
data, which is not allowed in Xen, and causes performance problems in
VMware.

Rather than go back to the old method of statically allocating the GDT
(which wastes unneded space for non-present CPUs), the GDT for APs is
allocated dynamically.

Signed-off-by: Zachary Amsden <zach@vmware.com>
Cc: "Seth, Rohit" <rohit.seth@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:33 -08:00
Linus Torvalds db9edfd7e3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
Trivial manual merge fixup for usb_find_interface clashes.
2006-01-04 18:44:12 -08:00
Kay Sievers 0343821177 [PATCH] keep pnpbios usermod_helper away from hotplug_path[]
These days we use udev to manage all kernel events. /proc/sys/kernel/hotplug
will usually be disabled by an init-script. pnpnbios is not integrated with
the driver core and should stay away from the now disabled /sbin/hotplug.

Set the helper to /sbin/phpbios, even when there is probably no current
user of this faciliy. If it's needed, it should definitely get proper driver
core integration instead of forking binaries from the kernel.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 16:18:07 -08:00
Pierre Ossman 68094e3251 [ALSA] [PATCH] alsa: Improved PnP suspend support
Also use the PnP functions to start/stop the devices during the suspend so
that drivers will not have to duplicate this code.

Cc: Adam Belay <ambx1@neo.rr.com>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03 12:31:30 +01:00
Takashi Iwai 4c98cfef2e [ALSA] PATCH] Add PM support to PnP drivers
Add suspend/resume callback to pnp_driver and pnp_card_driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03 12:31:19 +01:00
Adrian Bunk b449f63c8c [PATCH] drivers/pnp/: cleanups
This patch contains the following possible cleanups:
- make needlessly global code static
- #if 0 the following unused global function:
  - core.c: pnp_remove_device
- #if 0 the following unneeded EXPORT_SYMBOL's:
  - card.c: pnp_add_card
  - card.c: pnp_remove_card
  - card.c: pnp_add_card_device
  - card.c: pnp_remove_card_device
  - card.c: pnp_add_card_id
  - core.c: pnp_register_protocol
  - core.c: pnp_unregister_protocol
  - core.c: pnp_add_device
  - core.c: pnp_remove_device
  - pnpacpi/core.c: pnpacpi_protocol
  - driver.c: pnp_add_id
  - isapnp/core.c: isapnp_read_byte
  - manager.c: pnp_auto_config_dev
  - resource.c: pnp_register_dependent_option
  - resource.c: pnp_register_independent_option
  - resource.c: pnp_register_irq_resource
  - resource.c: pnp_register_dma_resource
  - resource.c: pnp_register_port_resource
  - resource.c: pnp_register_mem_resource

Note that this patch #if 0's exactly one functions and removes no
functions.  Most it does is the #if 0 of EXPORT_SYMBOL's, so if any modular
code will use any of them, re-adding will be trivial.

Modular ISAPnP might be interesting in some cases, but this is more legacy
code.  If someone would work on it to sort all the issues out (starting
with the point that most users of __ISAPNP__ will have to be fixed)
re-enabling the required EXPORT_SYMBOL's won't be hard for him.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:54:09 -08:00
Tim Schmielau 4e57b68178 [PATCH] fix missing includes
I recently picked up my older work to remove unnecessary #includes of
sched.h, starting from a patch by Dave Jones to not include sched.h
from module.h. This reduces the number of indirect includes of sched.h
by ~300. Another ~400 pointless direct includes can be removed after
this disentangling (patch to follow later).
However, quite a few indirect includes need to be fixed up for this.

In order to feed the patches through -mm with as little disturbance as
possible, I've split out the fixes I accumulated up to now (complete for
i386 and x86_64, more archs to follow later) and post them before the real
patch.  This way this large part of the patch is kept simple with only
adding #includes, and all hunks are independent of each other.  So if any
hunk rejects or gets in the way of other patches, just drop it.  My scripts
will pick it up again in the next round.

Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30 17:37:32 -08:00
Len Brown 64e47488c9 Merge linux-2.6 with linux-acpi-2.6 2005-09-08 01:45:47 -04:00
Bjorn Helgaas e139aa595c [PATCH] PNP: make pnp_dbg conditional directly on CONFIG_PNP_DEBUG
Seems pointless to require .c files to test CONFIG_PNP_DEBUG and
conditionally define DEBUG before including <linux/pnp.h>.  Just test
CONFIG_PNP_DEBUG directly in pnp.h.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:25 -07:00
Bjorn Helgaas a2822e7f00 [PATCH] pnp: consolidate kmalloc wrappers
ISAPNP, PNPBIOS, and PNPACPI all had their own kmalloc wrappers that
reimplemented kcalloc().  Remove the wrappers and just use kcalloc()
directly.

Note that this also removes the PNPBIOS error message when the kmalloc
fails.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 16:57:21 -07:00
Bjorn Helgaas dbed12da5b [ACPI] PNPACPI IRQ workaround for HP workstations
Move pcibios_penalize_isa_irq() to pnpacpi_parse_allocated_irqresource().
Previously we passed the GSI, not the IRQ, and we did it even if parsing
the IRQ resource failed.

Parse IRQ descriptors that contain multiple interrupts.  This violates the
spec (in _CRS, only one interrupt per descriptor is allowed), but some
firmware, e.g., HP rx7620 and rx8620 descriptions of HPET, has this bug.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Adam Belay <ambx1@neo.rr.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-09-03 00:42:56 -04:00
Len Brown 76f5858482 [ACPI] delete CONFIG_ACPI_BUS
it is a synonym for CONFIG_ACPI

Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-24 12:11:34 -04:00
Len Brown 84ffa74752 Merge from-linus to-akpm 2005-08-23 22:12:23 -04:00
Jaroslav Kysela 30d5b64b63 [PATCH] broken error path in drivers/pnp/card.c
The error path in pnp_request_card_device() is broken (one variable is
left initialized and the semaphore is not unlocked).

This fixes it (and has been tested).

Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-18 08:43:59 -07:00
Len Brown 1d492eb413 [ACPI] Merge acpi-2.6.12 branch into 2.6.13-rc3
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-05 00:31:42 -04:00
Kenji Kaneshige 71df30f8e3 [ACPI] PNPACPI driver now checks for acpi_register_gsi() errors
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-08-04 22:20:13 -04:00
Adrian Bunk 9a14d4c898 [PATCH] drivers/pnp/pnpbios/rsparser.c: fix compile error with PCI=n
drivers/pnp/pnpbios/rsparser.c: In function 'pnpbios_parse_allocated_irqresource':
drivers/pnp/pnpbios/rsparser.c:67: error: too many arguments to function 'pcibios_penalize_isa_irq'

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-27 16:25:50 -07:00
Len Brown 5028770a42 [ACPI] merge acpi-2.6.12 branch into latest Linux 2.6.13-rc...
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 17:21:56 -04:00
David Shaohua Li c9c3e457de [ACPI] PNPACPI vs sound IRQ
http://bugme.osdl.org/show_bug.cgi?id=4016

Written-by: David Shaohua Li <shaohua.li@intel.com>
Acked-by: Adam Belay <abelay@novell.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-12 00:03:30 -04:00
Matthieu Castet b008b8d709 [ACPI] PNPACPI parse error
http://bugzilla.kernel.org/show_bug.cgi?id=3912

Written-by: matthieu castet <castet.matthieu@free.fr>
Acked-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2005-07-11 23:54:59 -04:00
Christoph Lameter 3e1d1d28d9 [PATCH] Cleanup patch for process freezing
1. Establish a simple API for process freezing defined in linux/include/sched.h:

   frozen(process)		Check for frozen process
   freezing(process)		Check if a process is being frozen
   freeze(process)		Tell a process to freeze (go to refrigerator)
   thaw_process(process)	Restart process
   frozen_process(process)	Process is frozen now

2. Remove all references to PF_FREEZE and PF_FROZEN from all
   kernel sources except sched.h

3. Fix numerous locations where try_to_freeze is manually done by a driver

4. Remove the argument that is no longer necessary from two function calls.

5. Some whitespace cleanup

6. Clear potential race in refrigerator (provides an open window of PF_FREEZE
   cleared before setting PF_FROZEN, recalc_sigpending does not check
   PF_FROZEN).

This patch does not address the problem of freeze_processes() violating the rule
that a task may only modify its own flags by setting PF_FREEZE. This is not clean
in an SMP environment. freeze(process) is therefore not SMP safe!

Signed-off-by: Christoph Lameter <christoph@lameter.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 17:10:13 -07:00
Martin Waitz 3d41088fa3 [PATCH] DocBook: update comments
This patch updates some comments to match code changes.

Signed-off-by: Martin Waitz <tali@admingilde.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-24 00:06:40 -07:00
Yani Ioannou e404e274f6 [PATCH] Driver Core: drivers/i2c/chips/w83781d.c - drivers/s390/block/dcssblk.c: update device attribute callbacks
Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-20 15:15:34 -07:00
mochel@digitalimplant.org 8d618afdd6 [PATCH] Use driver_for_each_device() in drivers/pnp/driver.c instead of manually walking list.
Signed-off-by: Patrick Mochel <mochel@digitalimplant.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff -Nru a/drivers/pnp/driver.c b/drivers/pnp/driver.c
2005-06-20 15:15:13 -07:00
Adrian Bunk 0dec63bab8 [PATCH] drivers/pnp/pnpacpi/rsparser.c: fix an array overflow
This patch fixes an array overflow found by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-01 08:59:30 -07:00
Adrian Bunk 6e3e98d1dc [PATCH] drivers/pnp/pnpbios/rsparser.c: fix an array overflow
This patch fixes an array overflow found by the Coverity checker.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-01 08:59:29 -07:00
Martin Waitz 67be2dd1ba [PATCH] DocBook: fix some descriptions
Some KernelDoc descriptions are updated to match the current code.
No code changes.

Signed-off-by: Martin Waitz <tali@admingilde.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-01 08:59:26 -07:00
maximilian attems ffbe5523a8 [PATCH] pnpbios: eliminate bad section references
one of the last buildcheck errors on i386, thanks Randy again for double
checking.

Fix pnpbios section references:
make dmi_system_id pnpbios_dmi_table __initdata

Error: ./drivers/pnp/pnpbios/core.o .data refers to 00000100 R_386_32
.init.text
Error: ./drivers/pnp/pnpbios/core.o .data refers to 0000012c R_386_32
.init.text

Signed-off-by: maximilian attems <janitor@sternwelten.at>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16 15:25:51 -07:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00