Commit Graph

105313 Commits

Author SHA1 Message Date
Jean Delvare
85b9b8a444 V4L/DVB (8499): zr36067: Rework device memory allocation
Allocate zoran devices dynamically. Currently, the zr36067 driver
stores the device structures in a global array, with room for 4
devices. This makes the bss section very large (90 kB!), and given
that most users, I suspect, have only one zoran device, this is a
waste of kernel memory. Allocating the memory dynamically lets us use
only the amount of memory we need.

Before:
   text    data     bss     dec     hex filename
  64754    9230   90224  164208   28170 drivers/media/video/zr36067.o

After:
   text    data     bss     dec     hex filename
  64866    9230     112   74208   121e0 drivers/media/video/zr36067.o

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ronald Bultje <rbultje@ronald.bitfreak.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:27 -03:00
Laurent Pinchart
54812c77bc V4L/DVB (8498): uvcvideo: Return sensible min and max values when querying a boolean control.
Although the V4L2 spec states that the minimum and maximum fields may not be
valid for control types other than V4L2_CTRL_TYPE_INTEGER, it makes sense
to set the bounds to 0 and 1 for boolean controls instead of returning
uninitialized values.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:25 -03:00
Laurent Pinchart
90ac5ea37f V4L/DVB (8497): uvcvideo: Make the auto-exposure menu control V4L2 compliant
V4L2 and UVC enumerate the auto-exposure settings in a different order. This
patch fixes the auto-exposure menu declaration to match the V4L2 spec.

Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:24 -03:00
Simon Arlott
d53687d1d2 V4L/DVB (8496): saa7134: Copy tuner data earlier in init to avoid overwriting manual tuner type
When saa7134_board_init2 runs, it immediately overwrites the current value
(set earlier from module parameter) of tuner_type with the static values,
and then does autodetection. This patch moves the tuner_addr copy to earlier
in saa7134_initdev and removes the tuner_type copy from saa7134_board_init2.

Autodetection could still potentially change to the wrong tuner type, but it
is now possible to override the default type for the card again.

My card's tuner is configured with autodetection from eeprom, so I don't
need to manually set the tuner. I've checked that the autodetection still
works for my card.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Reviewed-by: Hermann Pitton <hermann-pitton@arcor.de>
Cc: Brian Marete <bgmarete@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:23 -03:00
Adrian Bunk
53faa1b1b9 V4L/DVB (8495): usb/anysee.c: make struct anysee_usb_mutex static
This patch makes the needlessly global struct anysee_usb_mutex static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:21 -03:00
Adrian Bunk
fe0d3dff46 V4L/DVB (8494): make cx25840_debug static
cx25840_debug can now become static.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:20 -03:00
roel kluin
1ffdddd6fa V4L/DVB (8493): mt20xx: test below 0 on unsigned lo1a and lo2a
lo1a and lo2a are unsigned ints so these tests won't work.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:19 -03:00
Devin Heitmueller
e14b3658a7 V4L/DVB (8492): Add support for the ATI TV Wonder HD 600
em28xx-cards.c
em28xx-dvb.c
em28xx.h
 - Add support for the ATI TV Wonder HD 600, based on a 94 email exchange and
   USB traces provided by Ronnie Bailey

   Thanks to Ronnie Bailey <purevw@wtxs.net> for testing the changes

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:17 -03:00
Jaime Velasco Juan
b18559076a V4L/DVB (8491): stkwebcam: Always reuse last queued buffer
This change keeps the video stream going on when the application
is slow queuing buffers, instead of spamming dmesg and hanging.

Fixes a problem with aMSN reported by Samed Beyribey <beyribey@gmail.com>

Signed-off-by: Jaime Velasco Juan <jsagarribay@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:15 -03:00
Dean Anderson
f78d92c9ff V4L/DVB (8490): s2255drv Sensoray 2255 driver fixes
This patch fixes timer issues in driver disconnect.
It also removes the restriction of one user per channel at a time.

Thanks to Oliver Neukum and Mauro Chehab for finding these issues.
Locking of video stream partly based on saa7134 driver.

Signed-off-by: Dean Anderson <dean@sensoray.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:14 -03:00
reinhard schwab
655b840855 V4L/DVB (8489): add dvb-t support for terratec cinergy hybrid T usb xs
This patch adds dvbt support for the terratec cinergy hybrid T usb xsstick.
Thanks to Devin Heitmueller and Mauro Chehab for guiding me.

Signed-off-by: Reinhard Schwab <reinhard.schwab@aon.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:12 -03:00
Hans Verkuil
f894dfd735 V4L/DVB (8488): videodev: remove some CONFIG_VIDEO_V4L1_COMPAT code from v4l2-dev.h
The video_device_create_file and video_device_remove_file functions can be
removed from v4l2-dev.h, removing the dependency on videodev.h in v4l2-dev.h.

Also removed a few more videodev.h includes that should have been videodev2.h.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:11 -03:00
Guennadi Liakhovetski
668acf32df V4L/DVB (8488a): Add myself as a maintainer of the soc-camera subsystem
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:18:07 -03:00
Hans Verkuil
33b687cf1d V4L/DVB (8487): videodev: replace videodev.h includes by videodev2.h where possible
Several V4L2 drivers still included videodev.h. Fix this.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 13:11:36 -03:00
Adrian Bunk
58cfdf9acf V4L/DVB (8485): v4l-dvb: remove broken PlanB driver
The PlanB driver has been broken since around May 2004. No one stepped
in to maintain it, so it is now being removed.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Michel Lanners <mlan@cpu.lu>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:55:10 -03:00
Hans Verkuil
322e4095c9 V4L/DVB (8484): videodev: missed two more usages of the removed 'owner' field.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:55:08 -03:00
Hans Verkuil
9c39d7eafa V4L/DVB (8483): Remove obsolete owner field from video_device struct.
According to an old comment this should have been removed in 2.6.15.
Better late than never...

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:55:07 -03:00
Hans Verkuil
a399810ca6 V4L/DVB (8482): videodev: move all ioctl callbacks to a new v4l2_ioctl_ops struct
All ioctl callbacks are now stored in a new v4l2_ioctl_ops struct. Drivers fill in
a const struct v4l2_ioctl_ops and video_device just contains a const pointer to it.

This ensures a clean separation between the const ops struct and the non-const
video_device struct.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:58 -03:00
Hans Verkuil
b654fcdc0e V4L/DVB (8479): tveeprom/ivtv: fix usage of has_ir field
has_ir was set to and compared to -1 in several cases, even though it is
an u32. ivtv also contained a FIXME for an old kernel that could be
removed.

Thanks to Roel Kluin for creating an initial patch for this. Although
I chose a different solution here it did help in pointing out the problem.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:42 -03:00
Hans Verkuil
38f9d30859 V4L/DVB (8477): v4l: remove obsolete audiochip.h
Converted the last users of audiochip.h to the v4l2-chip-ident.h header
and remove the now unused audiochip.h header.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:40 -03:00
Mike Isely
d417f711b9 V4L/DVB (8475): pvrusb2: Cosmetic macro fix (benign)
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:37 -03:00
Mike Isely
31335b13ca V4L/DVB (8474): pvrusb2: Enable IR chip on HVR-1900 class devices
The Zilog IR chip on HVR-1900 devices is held in reset when the device
initializes.  We have to bring this chip out of reset before LIRC has
any chance of operating the chip.  So do it.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:35 -03:00
Steven Toth
7e994302ed V4L/DVB (8472): cx23885: SRAM changes for the 885 and 887 silicon parts.
In a previous patch I merged both memory maps into a single struct, believing
that they could be combined. We've since found problems with streaming
multiple channels on the 885. I'm restoring the multiple memory map structs
- in line with the windows driver.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:33 -03:00
Steven Toth
d8d12b4367 V4L/DVB (8471): cx23885: Reallocated the sram to avoid concurrent VIDB/C issues.
This may be cx23885 chip specific and may not work on the cx23887.
Analog and mpeg encoder streaming are still to be tested.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:31 -03:00
Steven Toth
6df516905b V4L/DVB (8470): cx23885: Add DViCO HDTV7 Dual Express tuner callback support.
Ensure the correct tuner gets reset on demand.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:30 -03:00
Steven Toth
1ecc5aed1e V4L/DVB (8469): cx23885: FusionHDTV7 Dual Express toggle reset.
Ensure the tuners and demods are brought in and out of reset during
driver startup.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:28 -03:00
Steven Toth
aaadeac88a V4L/DVB (8468): cx23885: Ensure the second transport port is enabled for streaming.
It was previously disabled pending a bugfix, which has since been
resolved.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:27 -03:00
Steven Toth
7b9139086a V4L/DVB (8467): cx23885: Minor cleanup to the debuging output for a specific register.
Don't display the register when it's not appropriate for the specific port.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:25 -03:00
Steven Toth
52ce27bfc4 V4L/DVB (8466): cx23885: Bugfix - DVB Transport cards using DVB port VIDB/TS1 did not stream.
Certain DVB cards that have demodulators on TS1/VIDB were not streaming packets.
This ensure the pin directions on PAD_CTRL are set correctly, solving the issue.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:24 -03:00
Steven Toth
ecda5966c9 V4L/DVB (8465): cx23885: Ensure PAD_CTRL is always reset to a sensible default
PAD_CTRL controls TS1 and TS2 input and output states, if the register
became corrupt the driver was never able to recover.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:22 -03:00
Steven Toth
28901ab621 V4L/DVB (8464): cx23885: Bugfix for concurrent use of /dev/video0 and /dev/video1
With the HVR1800, trying to use video0 and video1 simultaneously caused
buffer corruption in the PCIe bridge. This fix reallocates video1
buffer locations to avoid the issue.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:21 -03:00
Andy Walls
35f92b2af8 V4L/DVB (8462): cx18: Lock the aux PLL to the video pixle rate for analog captures
cx18: Lock the aux PLL to the video pixel rate for analog captures.  The
datasheet for the CX25840 says this is important for MPEG encoding applications.
To ensure the PLL locking was correct, also fixed the aux PLL's multiplier to
be computed based on a precise crystal freq of 4.5 MHz/286 * 455/2 * 8 =
28636363.6363... instead of the imporperly rounded 28636363.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:19 -03:00
Andy Walls
f8f6296ada V4L/DVB (8461): cx18: Fix 32 kHz audio sample output rate for analog tuner SIF input
cx18: Fix 32 kHz audio sample output rate for analog tuner SIF input so it
works.  The AUX_PLL VCO was being operated at 196.6 MHz out of the spec'ed
200-600 MHz range.  Fixed the multipler and post dividers to operate the VCO
within specification and added comments on how magic numbers are derived.

Thanks to Hans Verkuil for pointing out this interesting problem to solve.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:18 -03:00
Hans de Goede
fff4205f1d V4L/DVB (8458): gspca_sonixb remove one more no longer needed special case from the code
gspca_sonixb remove one more no longer needed special case from the code

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:16 -03:00
Andoni Zubimendi
84754319e3 V4L/DVB (8457): gspca_sonixb remove some no longer needed sn9c103+ov7630 special cases
gspca_sonixb remove some no longer needed sn9c103+ov7630 special cases

Signed-off-by: Andoni Zubimendi <andoni.zubimendi@gmail.com>
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:15 -03:00
Hans de Goede
e0a33d4d6e V4L/DVB (8456): gspca_sonixb remove non working ovXXXX contrast, hue and saturation ctrls
gspca_sonixb remove non working ovXXXX contrast, hue and saturation ctrls

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:10 -03:00
Hans de Goede
6af492e566 V4L/DVB (8455): gspca_sonixb sn9c103 + ov7630 autoexposure and cleanup
Andoni Zubimendi has been doing some testing with his sn9c103 cam with
ov7630 sensor, and with this patch the exposure setting and autoexposure now
work.

This patch also removes some special cases in the shared ov6650 / ov7630 code
which now are handled the same for both sensors and it adds a new special case
which stops us from changing the hsync / vsync polarity settings from their
default on the ov7630 (which we were doing as a side-effect of using the ov6650
exposure code for the ov7630).

Last this patch removes the superficial difference between the OV7630 and
OV7630_3 sensors.

Signed-off-by: Andoni Zubimendi <andoni.zubimendi@gmail.com>
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:09 -03:00
Adrian Bunk
c5e0bd1a98 V4L/DVB (8453): sms1xxx: dvb/siano/: cleanups
This patch contains the following cleanups:
- mark smscore_module_init() as __init
- mark smscore_module_exit as __exit
- make the following needlessly global code static:
  - smscoreapi.c: struct g_smscore_notifyees
  - smscoreapi.c: struct g_smscore_devices
  - smscoreapi.c: struct g_smscore_deviceslock
  - smscoreapi.c: struct g_smscore_registry
  - smscoreapi.c: struct g_smscore_registrylock
  - smscoreapi.c: smscore_module_init()
  - smscoreapi.c: smscore_module_exit()
  - smsdvb.c: struct g_smsdvb_clients
  - smsdvb.c: struct g_smsdvb_clientslock

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-26 12:54:08 -03:00
Mauro Carvalho Chehab
e5b13acf56 V4L/DVB (8451): dw2102: fix in-kernel compilation
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-25 09:02:15 -03:00
Mauro Carvalho Chehab
698158c799 Merge ../linux-2.6 2008-07-24 14:05:50 -03:00
Mauro Carvalho Chehab
4c7827eec7 V4L/DVB (8234a): uvcvideo: Fix build for uvc input
Fix a bug introduced by some trouble on my -git tree that resulted on a hunk to
be lost (probably caused by some rebase).

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-24 13:46:19 -03:00
Linus Torvalds
338b9bb3ad Merge branch 'x86/auditsc' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland
* 'x86/auditsc' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland:
  i386 syscall audit fast-path
  x86_64 ia32 syscall audit fast-path
  x86_64 syscall audit fast-path
  x86_64: remove bogus optimization in sysret_signal
2008-07-23 20:39:21 -07:00
Linus Torvalds
7f9dce3837 Merge branch 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: hrtick_enabled() should use cpu_active()
  sched, x86: clean up hrtick implementation
  sched: fix build error, provide partition_sched_domains() unconditionally
  sched: fix warning in inc_rt_tasks() to not declare variable 'rq' if it's not needed
  cpu hotplug: Make cpu_active_map synchronization dependency clear
  cpu hotplug, sched: Introduce cpu_active_map and redo sched domain managment (take 2)
  sched: rework of "prioritize non-migratable tasks over migratable ones"
  sched: reduce stack size in isolated_cpu_setup()
  Revert parts of "ftrace: do not trace scheduler functions"

Fixed up conflicts in include/asm-x86/thread_info.h (due to the
TIF_SINGLESTEP unification vs TIF_HRTICK_RESCHED removal) and
kernel/sched_fair.c (due to cpu_active_map vs for_each_cpu_mask_nr()
introduction).
2008-07-23 19:36:53 -07:00
Linus Torvalds
26dcce0fab Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (31 commits)
  NR_CPUS: Replace NR_CPUS in speedstep-centrino.c
  cpumask: Provide a generic set of CPUMASK_ALLOC macros, FIXUP
  NR_CPUS: Replace NR_CPUS in cpufreq userspace routines
  NR_CPUS: Replace per_cpu(..., smp_processor_id()) with __get_cpu_var
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genapic_flat_64.c
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/genx2apic_uv_x.c
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/proc.c
  NR_CPUS: Replace NR_CPUS in arch/x86/kernel/cpu/mcheck/mce_64.c
  cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c, fix
  cpumask: Use optimized CPUMASK_ALLOC macros in the centrino_target
  cpumask: Provide a generic set of CPUMASK_ALLOC macros
  cpumask: Optimize cpumask_of_cpu in lib/smp_processor_id.c
  cpumask: Optimize cpumask_of_cpu in kernel/time/tick-common.c
  cpumask: Optimize cpumask_of_cpu in drivers/misc/sgi-xp/xpc_main.c
  cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/ldt.c
  cpumask: Optimize cpumask_of_cpu in arch/x86/kernel/io_apic_64.c
  cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr
  Revert "cpumask: introduce new APIs"
  cpumask: make for_each_cpu_mask a bit smaller
  net: Pass reference to cpumask variable in net/sunrpc/svc.c
  ...

Fix up trivial conflicts in drivers/cpufreq/cpufreq.c manually
2008-07-23 18:37:44 -07:00
Linus Torvalds
d7b6de14a0 Merge branch 'core/softlockup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core/softlockup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  softlockup: fix invalid proc_handler for softlockup_panic
  softlockup: fix watchdog task wakeup frequency
  softlockup: fix watchdog task wakeup frequency
  softlockup: show irqtrace
  softlockup: print a module list on being stuck
  softlockup: fix NMI hangs due to lock race - 2.6.26-rc regression
  softlockup: fix false positives on nohz if CPU is 100% idle for more than 60 seconds
  softlockup: fix softlockup_thresh fix
  softlockup: fix softlockup_thresh unaligned access and disable detection at runtime
  softlockup: allow panic on lockup
2008-07-23 18:34:13 -07:00
Linus Torvalds
30d38542ec Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (85 commits)
  [ARM] pxa: add base support for PXA930 Handheld Platform (aka SAAR)
  [ARM] pxa: add base support for PXA930 Evaluation Board (aka TavorEVB)
  [ARM] pxa: add base support for PXA930 (aka Tavor-P)
  [ARM] Update mach-types
  [ARM] pxa: make littleton to use the new smc91x platform data
  [ARM] pxa: make zylonite to use the new smc91x platform data
  [ARM] pxa: make mainstone to use the new smc91x platform data
  [ARM] pxa: make lubbock to use new smc91x platform data
  [NET] smc91x: prepare SMC_USE_PXA_DMA to be specified in platform data
  [NET] smc91x: prepare for SMC_IO_SHIFT to be a platform configurable variable
  [NET] smc91x: add SMC91X_NOWAIT flag to platform data
  [NET] smc91x: favor the use of SMC91X_USE_* instead of SMC_CAN_USE_*
  [NET] smc91x: remove "irq_flags" from "struct smc91x_platdata"
  [ARM] 5146/1: pxa2xx: convert all boards to call pxa2xx_transceiver_mode helper
  Support for LCD on e740 e750 e400 and e800 e-series PDAs
  E-series UDC support
  PXA UDC - allow use of inverted GPIO for pullup
  Add e350 support
  Fix broken e-series build
  E-series GPIO / IRQ definitions.
  ...
2008-07-23 18:24:08 -07:00
Roland McGrath
af0575bba0 i386 syscall audit fast-path
This adds fast paths for 32-bit syscall entry and exit when
TIF_SYSCALL_AUDIT is set, but no other kind of syscall tracing.
These paths does not need to save and restore all registers as
the general case of tracing does.  Avoiding the iret return path
when syscall audit is enabled helps performance a lot.

Signed-off-by: Roland McGrath <roland@redhat.com>
2008-07-23 18:00:30 -07:00
Roland McGrath
5cbf1565f2 x86_64 ia32 syscall audit fast-path
This adds fast paths for 32-bit syscall entry and exit when
TIF_SYSCALL_AUDIT is set, but no other kind of syscall tracing.
These paths does not need to save and restore all registers as
the general case of tracing does.  Avoiding the iret return path
when syscall audit is enabled helps performance a lot.

Signed-off-by: Roland McGrath <roland@redhat.com>
2008-07-23 17:55:22 -07:00
Roland McGrath
86a1c34a92 x86_64 syscall audit fast-path
This adds a fast path for 64-bit syscall entry and exit when
TIF_SYSCALL_AUDIT is set, but no other kind of syscall tracing.
This path does not need to save and restore all registers as
the general case of tracing does.  Avoiding the iret return path
when syscall audit is enabled helps performance a lot.

Signed-off-by: Roland McGrath <roland@redhat.com>
2008-07-23 17:47:32 -07:00
Roland McGrath
15e8f348db x86_64: remove bogus optimization in sysret_signal
This short-circuit path in sysret_signal looks wrong to me.
AFAICT, in practice the branch is never taken--and if it were,
it would go wrong.  To wit, try loading a module whose init
function does set_thread_flag(TIF_IRET), and see insmod crash
(presumably with a wrong user stack pointer).

This is because the FIXUP_TOP_OF_STACK work hasn't been done yet
when we jump around the call to ptregscall_common and get to
int_with_check--where it expects the user RSP,SS,CS and EFLAGS to
have been stored by FIXUP_TOP_OF_STACK.

I don't think it's normally possible to get to sysret_signal with no
_TIF_DO_NOTIFY_MASK bits set anyway, so these two instructions are
already superfluous.  If it ever did happen, it is harmless to call
do_notify_resume with nothing for it to do.

Signed-off-by: Roland McGrath <roland@redhat.com>
2008-07-23 17:43:36 -07:00