Commit graph

5213 commits

Author SHA1 Message Date
Linus Torvalds
3539fc544f Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog changes from Wim Van Sebroeck:
 - conversion of iTCO_wdt and orion_wdt to the generic watchdog API
 - uses module_platform_driver() for s3c2410_wdt
 - Adds support for Jetway JNF99 Motherboard
 - various fixes

* git://www.linux-watchdog.org/linux-watchdog:
  watchdog: orion_wdt: Convert driver to watchdog core
  watchdog: s3c2410_wdt: Use module_platform_driver()
  watchdog: sch311x_wdt: Fix Polarity when starting watchdog
  Watchdog: OMAP: Fix the runtime pm code to avoid module getting stuck intransition state.
  watchdog: ie6xx_wdt: section mismatch in ie6xx_wdt_probe()
  watchdog: bcm63xx_wdt: fix driver section mismatch
  watchdog: iTCO_wdt.c: convert to watchdog core
  char/ipmi: remove local ioctl defines replaced by generic ones
  watchdog: xilinx: Read clock frequency directly from DT node
  watchdog: coh901327_wdt: use clk_prepare/unprepare
  watchdog: f71808e_wdt: Add support for Jetway JNF99 motherboard
2012-07-24 13:26:08 -07:00
Tony Luck
cbc96b7594 random: Add comment to random_initialize()
Many platforms have per-machine instance data (serial numbers,
asset tags, etc.) squirreled away in areas that are accessed
during early system bringup. Mixing this data into the random
pools has a very high value in providing better random data,
so we should allow (and even encourage) architecture code to
call add_device_randomness() from the setup_arch() paths.

However, this limits our options for internal structure of
the random driver since random_initialize() is not called
until long after setup_arch().

Add a big fat comment to rand_initialize() spelling out
this requirement.

Suggested-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2012-07-24 13:16:41 -04:00
Florian Fainelli
553072b27e hw_random: add Broadcom BCM63xx RNG driver
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Cc: linux-mips@linux-mips.org
Cc: mpm@selenic.com
Cc: herbert@gondor.apana.org.au
Patchwork: https://patchwork.linux-mips.org/patch/3327/
Patchwork: https://patchwork.linux-mips.org/patch/4072/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-24 16:33:11 +02:00
Linus Torvalds
83c7f72259 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Benjamin Herrenschmidt:
 "Notable highlights:

   - iommu improvements from Anton removing the per-iommu global lock in
     favor of dividing the DMA space into pools, each with its own lock,
     and hashed on the CPU number.  Along with making the locking more
     fine grained, this gives significant improvements in multiqueue
     networking scalability.

   - Still from Anton, we know provide a vdso based variant of getcpu
     which makes sched_getcpu with the appropriate glibc patch something
     like 18 times faster.

   - More anton goodness (he's been busy !) in other areas such as a
     faster __clear_user and copy_page on P7, various perf fixes to
     improve sampling quality, etc...

   - One more step toward removing legacy i2c interfaces by using new
     device-tree based probing of platform devices for the AOA audio
     drivers

   - A nice series of patches from Michael Neuling that helps avoiding
     confusion between register numbers and litterals in assembly code,
     trying to enforce the use of "%rN" register names in gas rather
     than plain numbers.

   - A pile of FSL updates

   - The usual bunch of small fixes, cleanups etc...

  You may spot a change to drivers/char/mem.  The patch got no comment
  or ack from outside, it's a trivial patch to allow the architecture to
  skip creating /dev/port, which we use to disable it on ppc64 that
  don't have a legacy brige.  On those, IO ports 0...64K are not mapped
  in kernel space at all, so accesses to /dev/port cause oopses (and
  yes, distros -still- ship userspace that bangs hard coded ports such
  as kbdrate)."

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (106 commits)
  powerpc/mpic: Create a revmap with enough entries for IPIs and timers
  Remove stale .rej file
  powerpc/iommu: Fix iommu pool initialization
  powerpc/eeh: Check handle_eeh_events() return value
  powerpc/85xx: Add phy nodes in SGMII mode for MPC8536/44/72DS & P2020DS
  powerpc/e500: add paravirt QEMU platform
  powerpc/mpc85xx_ds: convert to unified PCI init
  powerpc/fsl-pci: get PCI init out of board files
  powerpc/85xx: Update corenet64_smp_defconfig
  powerpc/85xx: Update corenet32_smp_defconfig
  powerpc/85xx: Rename P1021RDB-PC device trees to be consistent
  powerpc/watchdog: move booke watchdog param related code to setup-common.c
  sound/aoa: Adapt to new i2c probing scheme
  i2c/powermac: Improve detection of devices from device-tree
  powerpc: Disable /dev/port interface on systems without an ISA bridge
  of: Improve prom_update_property() function
  powerpc: Add "memory" attribute for mfmsr()
  powerpc/ftrace: Fix assembly trampoline register usage
  powerpc/hw_breakpoints: Fix incorrect pointer access
  powerpc: Put the gpr save/restore functions in their own section
  ...
2012-07-23 18:54:23 -07:00
Linus Torvalds
e05644e17e Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
 "Nothing groundbreaking for this kernel, just cleanups and fixes, and a
  couple of Smack enhancements."

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (21 commits)
  Smack: Maintainer Record
  Smack: don't show empty rules when /smack/load or /smack/load2 is read
  Smack: user access check bounds
  Smack: onlycap limits on CAP_MAC_ADMIN
  Smack: fix smack_new_inode bogosities
  ima: audit is compiled only when enabled
  ima: ima_initialized is set only if successful
  ima: add policy for pseudo fs
  ima: remove unused cleanup functions
  ima: free securityfs violations file
  ima: use full pathnames in measurement list
  security: Fix nommu build.
  samples: seccomp: add .gitignore for untracked executables
  tpm: check the chip reference before using it
  TPM: fix memleak when register hardware fails
  TPM: chip disabled state erronously being reported as error
  MAINTAINERS: TPM maintainers' contacts update
  Merge branches 'next-queue' and 'next' into next
  Remove unused code from MPI library
  Revert "crypto: GnuPG based MPI lib - additional sources (part 4)"
  ...
2012-07-23 18:49:06 -07:00
Oskar Schirmer
18cb2ae55f char/ipmi: remove local ioctl defines replaced by generic ones
This watchdog driver had ioctl defines introduced locally
for pre timeout handling, marked to be removed as soon as
a generic replacement would become available.

The latter has actually occurred in 2006, at e05b59fe.

Remove the local duplicates for pre timeout handling.

Signed-off-by: Oskar Schirmer <oskar@scara.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2012-07-23 12:48:04 +02:00
Alan Cox
373f5aedbc pcmcia,synclink_cs: fix termios port I missed
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-19 15:40:46 -07:00
Theodore Ts'o
c5857ccf29 random: remove rand_initialize_irq()
With the new interrupt sampling system, we are no longer using the
timer_rand_state structure in the irq descriptor, so we can stop
initializing it now.

[ Merged in fixes from Sedat to find some last missing references to
  rand_initialize_irq() ]

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
2012-07-19 10:38:32 -04:00
Greg Kroah-Hartman
5b1f6d81e4 Merge 3.5-rc7 into char-misc-next.
This lets us pick up the mei driver changes that we need in order to
handle future merge issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-18 06:22:45 -07:00
Devendra Naga
8397c76a2c powerpc/BSR: cleanup the error path of bsr_init
class_create if succeeded returns a pointer to the struct class,
and if it fails, it returns a value enclosed by the pointer, which
can be read by using PTR_ERR.

Handle the error and return it.

result is for error checking of the alloc_chrdev_region, instead
ret can be used, and also if the alloc_chrdev_region fail,
we are still returning -ENODEV, use ret and the error path will
take care of returning of the ret.

Signed-off-by: Devendra Naga <develkernel412222@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-17 10:27:38 -07:00
Alan Cox
ce7240e445 8250: three way resolve of the 8250 diffs
This resolves the differences between the original 8250 patch, the revised 8250 patch
and the independant clean up of the octeon driver (to use platform devices properly yay!)

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-07-17 09:11:50 -07:00
Theodore Ts'o
00ce1db1a6 random: add tracepoints for easier debugging and verification
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-07-14 20:17:48 -04:00
Theodore Ts'o
c2557a303a random: add new get_random_bytes_arch() function
Create a new function, get_random_bytes_arch() which will use the
architecture-specific hardware random number generator if it is
present.  Change get_random_bytes() to not use the HW RNG, even if it
is avaiable.

The reason for this is that the hw random number generator is fast (if
it is present), but it requires that we trust the hardware
manufacturer to have not put in a back door.  (For example, an
increasing counter encrypted by an AES key known to the NSA.)

It's unlikely that Intel (for example) was paid off by the US
Government to do this, but it's impossible for them to prove otherwise
--- especially since Bull Mountain is documented to use AES as a
whitener.  Hence, the output of an evil, trojan-horse version of
RDRAND is statistically indistinguishable from an RDRAND implemented
to the specifications claimed by Intel.  Short of using a tunnelling
electronic microscope to reverse engineer an Ivy Bridge chip and
disassembling and analyzing the CPU microcode, there's no way for us
to tell for sure.

Since users of get_random_bytes() in the Linux kernel need to be able
to support hardware systems where the HW RNG is not present, most
time-sensitive users of this interface have already created their own
cryptographic RNG interface which uses get_random_bytes() as a seed.
So it's much better to use the HW RNG to improve the existing random
number generator, by mixing in any entropy returned by the HW RNG into
/dev/random's entropy pool, but to always _use_ /dev/random's entropy
pool.

This way we get almost of the benefits of the HW RNG without any
potential liabilities.  The only benefits we forgo is the
speed/performance enhancements --- and generic kernel code can't
depend on depend on get_random_bytes() having the speed of a HW RNG
anyway.

For those places that really want access to the arch-specific HW RNG,
if it is available, we provide get_random_bytes_arch().

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
2012-07-14 20:17:47 -04:00
Theodore Ts'o
e6d4947b12 random: use the arch-specific rng in xfer_secondary_pool
If the CPU supports a hardware random number generator, use it in
xfer_secondary_pool(), where it will significantly improve things and
where we can afford it.

Also, remove the use of the arch-specific rng in
add_timer_randomness(), since the call is significantly slower than
get_cycles(), and we're much better off using it in
xfer_secondary_pool() anyway.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
2012-07-14 20:17:46 -04:00
Linus Torvalds
a2080a67ab random: create add_device_randomness() interface
Add a new interface, add_device_randomness() for adding data to the
random pool that is likely to differ between two devices (or possibly
even per boot).  This would be things like MAC addresses or serial
numbers, or the read-out of the RTC. This does *not* add any actual
entropy to the pool, but it initializes the pool to different values
for devices that might otherwise be identical and have very little
entropy available to them (particularly common in the embedded world).

[ Modified by tytso to mix in a timestamp, since there may be some
  variability caused by the time needed to detect/configure the hardware
  in question. ]

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
2012-07-14 20:17:44 -04:00
Theodore Ts'o
902c098a36 random: use lockless techniques in the interrupt path
The real-time Linux folks don't like add_interrupt_randomness() taking
a spinlock since it is called in the low-level interrupt routine.
This also allows us to reduce the overhead in the fast path, for the
random driver, which is the interrupt collection path.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
2012-07-14 20:17:43 -04:00
Theodore Ts'o
775f4b297b random: make 'add_interrupt_randomness()' do something sane
We've been moving away from add_interrupt_randomness() for various
reasons: it's too expensive to do on every interrupt, and flooding the
CPU with interrupts could theoretically cause bogus floods of entropy
from a somewhat externally controllable source.

This solves both problems by limiting the actual randomness addition
to just once a second or after 64 interrupts, whicever comes first.
During that time, the interrupt cycle data is buffered up in a per-cpu
pool.  Also, we make sure the the nonblocking pool used by urandom is
initialized before we start feeding the normal input pool.  This
assures that /dev/urandom is returning unpredictable data as soon as
possible.

(Based on an original patch by Linus, but significantly modified by
tytso.)

Tested-by: Eric Wustrow <ewust@umich.edu>
Reported-by: Eric Wustrow <ewust@umich.edu>
Reported-by: Nadia Heninger <nadiah@cs.ucsd.edu>
Reported-by: Zakir Durumeric <zakir@umich.edu>
Reported-by: J. Alex Halderman <jhalderm@umich.edu>.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
2012-07-14 20:17:28 -04:00
Haren Myneni
e1612de9e4 powerpc: Disable /dev/port interface on systems without an ISA bridge
Some power systems do not have legacy ISA devices. So, /dev/port is not
a valid interface on these systems. User level tools such as kbdrate is
trying to access the device using this interface which is causing the
system crash.

This patch will fix this issue by not creating this interface on these
powerpc systems.

Signed-off-by: Haren Myneni <haren@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-07-11 18:22:32 +10:00
Jonghwa Lee
b329669ea0 hwrng: exynos - Add support for Exynos random number generator
This patch supports Exynos SOC's PRNG driver. Exynos's PRNG has 5 seeds and
5 random number outputs. Module is excuted under runtime power management control,
so it activates only while it's in use. Otherwise it will be suspended generally.
It was tested on PQ board by rngtest program.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-07-11 11:06:14 +08:00
Rafael J. Wysocki
afec8a770a PM / IPMI: Remove empty legacy PCI PM callbacks
The legacy PM callbacks provided by the IPMI PCI driver are
empty routines returning 0, so they can be safely dropped.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Corey Minyard <cminyard@mvista.com>
2012-07-10 21:37:26 +02:00
Rafael J. Wysocki
ca9a2054fe tpm_nsc: Use struct dev_pm_ops for power management
Make the tpm_nsc driver define its PM callbacks through
a struct dev_pm_ops object rather than by using legacy PM hooks
in struct platform_driver.

This allows the driver to use tpm_pm_suspend() and tpm_pm_resume()
as its PM callbacks directly, without defining its own PM callback
routines.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-10 21:37:18 +02:00
Rafael J. Wysocki
b633f0507e tpm_tis: Use struct dev_pm_ops for power management
Make the tpm_tis driver define its PM callbacks through
a struct dev_pm_ops object rather than by using legacy PM hooks
in struct platform_driver.

This allows the driver to use tpm_pm_suspend() as its suspend
callback directly, without defining its own suspend callback
routine.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-10 21:37:11 +02:00
Rafael J. Wysocki
8324be0538 tpm_atmel: Use struct dev_pm_ops for power management
Make the tpm_atmel driver define its PM callbacks through
a struct dev_pm_ops object rather than by using legacy PM hooks
in struct platform_driver.

This allows the driver to use tpm_pm_suspend() and tpm_pm_resume()
as its PM callbacks directly, without defining its own PM callback
routines.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-10 21:37:02 +02:00
Rafael J. Wysocki
035e2ce8eb PM / TPM: Drop unused pm_message_t argument from tpm_pm_suspend()
The tpm_pm_suspend()'s second argument of type pm_message_t is not
used, so remove it.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-10 21:36:57 +02:00
Rafael J. Wysocki
7650572a8b omap-rng: Use struct dev_pm_ops for power management
Make the omap-rng driver define its PM callbacks through
a struct dev_pm_ops object rather than by using legacy PM hooks
in struct platform_driver.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-07-10 21:36:51 +02:00
Theodore Ts'o
74feec5dd8 random: fix up sparse warnings
Add extern and static declarations to suppress sparse warnings

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2012-07-06 14:13:25 -04:00
Rafael J. Wysocki
199ac0529e sonypi: Use struct dev_pm_ops for power management
Make the sonypi driver define its PM callbacks through
a struct dev_pm_ops object rather than by using legacy PM hooks
in struct acpi_device_ops.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Mattia Dongili <malattia@linux.it>
2012-07-01 13:31:14 +02:00
Benoît Thébaudeau
3621189064 hwrng: mxc-rnga - fix data_present API
Commit 45001e9, which added support for RNGA, ignored the previous commit
984e976, which changed the data_present API.

Cc: Matt Mackall <mpm@selenic.com>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Alan Carvalho de Assis <acassis@gmail.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-27 14:42:00 +08:00
Daniel Vetter
25c0af768c agp/intel-agp: remove snb+ host bridge pciids
drm/i915 now takes care itself of setting up the gtt for
these chips.

Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-25 21:10:35 +02:00
Daniel Vetter
7b0cfee1a2 Linux 3.5-rc4
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Merge tag 'v3.5-rc4' into drm-intel-next-queued

I want to merge the "no more fake agp on gen6+" patches into
drm-intel-next (well, the last pieces). But a patch in 3.5-rc4 also
adds a new use of dev->agp. Hence the backmarge to sort this out, for
otherwise drm-intel-next merged into Linus' tree would conflict in the
relevant code, things would compile but nicely OOPS at driver load :(

Conflicts in this merge are just simple cases of "both branches
changed/added lines at the same place". The only tricky part is to
keep the order correct wrt the unwind code in case of errors in
intel_ringbuffer.c (and the MI_DISPLAY_FLIP #defines in i915_reg.h
together, obviously).

Conflicts:
	drivers/gpu/drm/i915/i915_reg.h
	drivers/gpu/drm/i915/intel_ringbuffer.c

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-25 19:10:36 +02:00
Jesse Barnes
e597dad846 agp/intel: use correct GTT offset on VLV
VLV is a gen7 device, but we don't currently handle that in the switch.
So add it and write the PTEs correctly.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-20 22:49:46 +02:00
Jesse Barnes
e87c46993e agp/intel: allow cacheable and GDFT PTEs on ValleyView
The PTE format is similar to SNB, but we don't support an MLC and don't
need chipset flushing.

Note: I have my questions whether this is right, given that MLC died
for snb & ivb, that ivb has grown a L3$ cache instead (which vlv seems
to have, too) and that the LLC bit here isn't actually LLC, but just
means 'snoop cpu caches'.

But I plan to burn this all with the heat of a thousands suns in my
gtt rework, so who cares ;-)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Added note.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-20 22:49:45 +02:00
Linus Torvalds
48d4e137ea Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull a crypto fix from Herbert Xu:
 "This push fixes another bug in the atmel-rng that made it produce
  completely useless output."

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  hwrng: atmel-rng - fix data valid check
2012-06-18 12:20:36 -07:00
Andi Shyti
3072928ff2 tpm: check the chip reference before using it
If a driver calls tpm_dev_vendor_release for a device already released
then the driver will oops.

Signed-off-by: Andi Shyti <andi.shyti@gmail.com>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
2012-06-12 18:53:51 -03:00
Wanlong Gao
dad79cb892 TPM: fix memleak when register hardware fails
Adding proper kfree() before returning.

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
2012-06-12 18:53:50 -03:00
Rajiv Andrade
24ebe6670d TPM: chip disabled state erronously being reported as error
tpm_do_selftest() attempts to read a PCR in order to
decide if one can rely on the TPM being used or not.
The function that's used by __tpm_pcr_read() does not
expect the TPM to be disabled or deactivated, and if so,
reports an error.

It's fine if the TPM returns this error when trying to
use it for the first time after a power cycle, but it's
definitely not if it already returned success for a
previous attempt to read one of its PCRs.

The tpm_do_selftest() was modified so that the driver only
reports this return code as an error when it really is.

Reported-and-tested-by: Paul Bolle <pebolle@tiscali.nl>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
2012-06-12 18:53:49 -03:00
Rajiv Andrade
cbb2d5e459 MAINTAINERS: TPM maintainers' contacts update
Usual contact update, Debora Velarde role resign, and the new
co-maintainer inclusion, Kent Yoder. He's accepted to contribute
more actively to this driver's maintainership given the current
maintainer's slight career change that will affect his contribution
time.

[Replacing Debora Velarde by Kent Yoder]
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
2012-06-12 18:53:22 -03:00
Daniel Vetter
8ecd1a6615 drm/i915: call intel_enable_gtt
When drm/i915 is in control of the gtt, we need to call
the enable function at all the relevant places ourselves.

Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-12 22:21:07 +02:00
Daniel Vetter
32e3cd6ecd agp/intel-gtt: move gart base addres setup
We need this thing much earlier, and it doesn't make sense
in the hw enabling function intel_enable_gtt - this does not
change over a suspend/resume cycle ...

Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-12 22:20:28 +02:00
Daniel Vetter
14be93ddff drm/i915 + agp/intel-gtt: prep work for direct setup
To be able to directly set up the intel-gtt code from drm/i915 and
avoid setting up the fake-agp driver we need to prepare a few things:
- pass both the bridge and gpu pci_dev to the probe function and add
  code to handle the gpu pdev both being present (for drm/i915) and
  not present (fake agp).
- add refcounting to the remove function so that unloading drm/i915
  doesn't kill the fake agp driver

v2: Fix up the cleanup and refcount, noticed by Jani Nikula.

Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-12 22:19:49 +02:00
Daniel Vetter
7e8f6306fe agp/intel-gtt: don't require the agp bridge on setup
We only need it to fake the agp interface and don't actually
use it in the driver anywhere. Hence conditionalize that.

This is just a prep patch to eventually disable the fake agp
driver on gen6+.

Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-12 22:18:54 +02:00
Daniel Vetter
dd2757f8b5 drm/i915: stop using dev->agp->base
For that to work we need to export the base address of the gtt
mmio window from intel-gtt. Also replace all other uses of
dev->agp by values we already have at hand.

Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-12 22:18:06 +02:00
Daniel Vetter
9b990de76c agp/intel-gtt: remove dead code
This is a leftover from the conversion of the i81x fake agp driver
over to the new intel-gtt code layoute.

Reviewed-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-12 22:16:05 +02:00
Peter Korsgaard
c475c06f4b hwrng: atmel-rng - fix data valid check
Brown paper bag: Data valid is LSB of the ISR (status register), and NOT
of ODATA (current random data word)!

With this, rngtest is a lot happier. Before:

rngtest 3
Copyright (c) 2004 by Henrique de Moraes Holschuh
This is free software; see the source for copying conditions.  There is NO warr.

rngtest: starting FIPS tests...
rngtest: bits received from input: 20000032
rngtest: FIPS 140-2 successes: 3
rngtest: FIPS 140-2 failures: 997
rngtest: FIPS 140-2(2001-10-10) Monobit: 604
rngtest: FIPS 140-2(2001-10-10) Poker: 996
rngtest: FIPS 140-2(2001-10-10) Runs: 36
rngtest: FIPS 140-2(2001-10-10) Long run: 0
rngtest: FIPS 140-2(2001-10-10) Continuous run: 117
rngtest: input channel speed: (min=622.371; avg=23682.481; max=28224.350)Kibitss
rngtest: FIPS tests speed: (min=12.361; avg=12.718; max=12.861)Mibits/s
rngtest: Program run time: 2331696 microsecondsx

After:
rngtest 3
Copyright (c) 2004 by Henrique de Moraes Holschuh
This is free software; see the source for copying conditions.  There is NO warr.

rngtest: starting FIPS tests...
rngtest: bits received from input: 20000032
rngtest: FIPS 140-2 successes: 999
rngtest: FIPS 140-2 failures: 1
rngtest: FIPS 140-2(2001-10-10) Monobit: 0
rngtest: FIPS 140-2(2001-10-10) Poker: 0
rngtest: FIPS 140-2(2001-10-10) Runs: 1
rngtest: FIPS 140-2(2001-10-10) Long run: 0
rngtest: FIPS 140-2(2001-10-10) Continuous run: 0
rngtest: input channel speed: (min=777.363; avg=43588.270; max=47870.711)Kibitss
rngtest: FIPS tests speed: (min=11.943; avg=12.716; max=12.844)Mibits/s
rngtest: Program run time: 1955282 microseconds

Cc: stable@vger.kernel.org
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Reported-by: George Pontis <GPontis@z9.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-06-12 08:27:04 +08:00
Linus Torvalds
4e3c8a1b1c Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
 "This push fixes an unaligned fault on x86-32 with aesni-intel and an
  RNG failure with atmel-rng (repeated bits)."

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: aesni-intel - fix unaligned cbc decrypt for x86-32
  hwrng: atmel-rng - fix race condition leading to repeated bits
2012-06-11 16:31:52 +03:00
Eugeni Dodonov
67384fe3fd char/agp: add another Ironlake host bridge
This seems to come on Gigabyte H55M-S2V and was discovered through the
https://bugs.freedesktop.org/show_bug.cgi?id=50381 debugging.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50381
Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-06 17:05:29 +02:00
Peter Korsgaard
121daad8fd hwrng: atmel-rng - fix race condition leading to repeated bits
Data valid gets cleared by reading the ISR (status register) and NOT from
reading ODATA (data register). A new data word can become available between
checking ISR and reading ODATA, causing us to reuse the same data word next
time atmel_trng_read() gets called, if that happens before the following
data word is ready.

With this fixed, rngtest no longer complains of 'Continous run' errors.
Before:

rngtest -c 1000 < /dev/hwrng
rngtest 3
Copyright (c) 2004 by Henrique de Moraes Holschuh
This is free software; see the source for copying conditions.  There is NO warr.

rngtest: starting FIPS tests...
rngtest: bits received from input: 20000032
rngtest: FIPS 140-2 successes: 923
rngtest: FIPS 140-2 failures: 77
rngtest: FIPS 140-2(2001-10-10) Monobit: 0
rngtest: FIPS 140-2(2001-10-10) Poker: 0
rngtest: FIPS 140-2(2001-10-10) Runs: 1
rngtest: FIPS 140-2(2001-10-10) Long run: 0
rngtest: FIPS 140-2(2001-10-10) Continuous run: 76
rngtest: input channel speed: (min=721.402; avg=46003.510; max=49321.338)Kibitss
rngtest: FIPS tests speed: (min=11.442; avg=12.714; max=12.801)Mibits/s
rngtest: Program run time: 1931860 microseconds

After:

rngtest -c 1000 < /dev/hwrng
rngtest 3
Copyright (c) 2004 by Henrique de Moraes Holschuh
This is free software; see the source for copying conditions.  There is NO warr.

rngtest: starting FIPS tests...
rngtest: bits received from input: 20000032
rngtest: FIPS 140-2 successes: 1000
rngtest: FIPS 140-2 failures: 0
rngtest: FIPS 140-2(2001-10-10) Monobit: 0
rngtest: FIPS 140-2(2001-10-10) Poker: 0
rngtest: FIPS 140-2(2001-10-10) Runs: 0
rngtest: FIPS 140-2(2001-10-10) Long run: 0
rngtest: FIPS 140-2(2001-10-10) Continuous run: 0
rngtest: input channel speed: (min=777.518; avg=36988.482; max=43115.342)Kibitss
rngtest: FIPS tests speed: (min=11.951; avg=12.715; max=12.887)Mibits/s
rngtest: Program run time: 2035543 microseconds

Cc: stable@vger.kernel.org
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Reported-by: George Pontis <GPontis@z9.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-05-31 20:53:08 +10:00
Linus Torvalds
f2fde3a65e Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux
Pull main drm updates from Dave Airlie:
 "This is the main merge window request for the drm.

  It's big, but jam packed will lots of features and of course 0
  regressions.  (okay maybe there'll be one).

  Highlights:

   - new KMS drivers for server GPU chipsets: ast, mgag200 and cirrus
     (qemu only).  These drivers use the generic modesetting drivers.

   - initial prime/dma-buf support for i915, nouveau, radeon, udl and
     exynos

   - switcheroo audio support: so GPUs with HDMI can turn off the sound
     driver without crashing stuff.

   - There are some patches drifting outside drivers/gpu into x86 and
     EFI for better handling of multiple video adapters in Apple Macs,
     they've got correct acks except one trivial fixup.

   - Core:
	edid parser has better DMT and reduced blanking support,
	crtc properties,
	plane properties,

   - Drivers:
	exynos: add 2D core accel support, prime support, hdmi features
	intel: more Haswell support, initial Valleyview support, more
	    hdmi infoframe fixes, update MAINTAINERS for Daniel, lots of
	    cleanups and fixes
	radeon: more HDMI audio support, improved GPU lockup recovery
	    support, remove nested mutexes, less memory copying on PCIE, fix
	    bus master enable race (kexec), improved fence handling
	gma500: cleanups, 1080p support, acpi fixes
	nouveau: better nva3 memory reclocking, kepler accel (needs
	    external firmware rip), async buffer moves on nv84+ hw.

  I've some more dma-buf patches that rely on the dma-buf merge for vmap
  stuff, and I've a few fixes building up, but I'd decided I'd better
  get rid of the main pull sooner rather than later, so the audio guys
  are also unblocked."

Fix up trivial conflict due to some duplicated changes in
drivers/gpu/drm/i915/intel_ringbuffer.c

* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (605 commits)
  drm/nouveau/nvd9: Fix GPIO initialisation sequence.
  drm/nouveau: Unregister switcheroo client on exit
  drm/nouveau: Check dsm on switcheroo unregister
  drm/nouveau: fix a minor annoyance in an output string
  drm/nouveau: turn a BUG into a WARN
  drm/nv50: decode PGRAPH DATA_ERROR = 0x24
  drm/nouveau/disp: fix dithering not being enabled on some eDP macbooks
  drm/nvd9/copy: initialise copy engine, seems to work like nvc0
  drm/nvc0/ttm: use copy engines for async buffer moves
  drm/nva3/ttm: use copy engine for async buffer moves
  drm/nv98/ttm: add in a (disabled) crypto engine buffer copy method
  drm/nv84/ttm: use crypto engine for async buffer copies
  drm/nouveau/ttm: untangle code to support accelerated buffer moves
  drm/nouveau/fbcon: use fence for sync, rather than notifier
  drm/nv98/crypt: non-stub implementation of the engine hooks
  drm/nouveau/fifo: turn all fifo modules into engine modules
  drm/nv50/graph: remove ability to do interrupt-driven context switching
  drm/nv50: remove manual context unload on context destruction
  drm/nv50: remove execution engine context saves on suspend
  drm/nv50/fifo: use hardware channel kickoff functionality
  ...
2012-05-24 12:42:54 -07:00
Linus Torvalds
0bd3fbd4ab Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 - New cipher/hash driver for ARM ux500.
 - Code clean-up for aesni-intel.
 - Misc fixes.

Fixed up conflicts in arch/arm/mach-ux500/devices-common.h, where quite
frankly some of it made no sense at all (the pull brought in a
declaration for the dbx500_add_platform_device_noirq() function, which
neither exists nor is used anywhere).

Also some trivial add-add context conflicts in the Kconfig file in
drivers/{char/hw_random,crypto}/

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: aesni-intel - move more common code to ablk_init_common
  crypto: aesni-intel - use crypto_[un]register_algs
  crypto: ux500 - Cleanup hardware identification
  crypto: ux500 - Update DMA handling for 3.4
  mach-ux500: crypto - core support for CRYP/HASH module.
  crypto: ux500 - Add driver for HASH hardware
  crypto: ux500 - Add driver for CRYP hardware
  hwrng: Kconfig - modify default state for atmel-rng driver
  hwrng: omap - use devm_request_and_ioremap
  crypto: crypto4xx - move up err_request_irq label
  crypto, xor: Sanitize checksumming function selection output
  crypto: caam - add backward compatible string sec4.0
2012-05-23 15:59:10 -07:00
Linus Torvalds
6f73b3629f Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Benjamin Herrenschmidt:
 "Here are the powerpc goodies for 3.5.  Main highlights are:

   - Support for the NX crypto engine in Power7+
   - A bunch of Anton goodness, including some micro optimization of our
     syscall entry on Power7
   - I converted a pile of our thermal control drivers to the new i2c
     APIs (essentially turning the old therm_pm72 into a proper set of
     windfarm drivers).  That's one more step toward removing the
     deprecated i2c APIs, there's still a few drivers to fix, but we are
     getting close
   - kexec/kdump support for 47x embedded cores

  The big missing thing here is no updates from Freescale.  Not sure
  what's up here, but with Kumar not working for them anymore things are
  a bit in a state of flux in that area."

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (71 commits)
  powerpc: Fix irq distribution
  Revert "powerpc/hw-breakpoint: Use generic hw-breakpoint interfaces for new PPC ptrace flags"
  powerpc: Fixing a cputhread code documentation
  powerpc/crypto: Enable the PFO-based encryption device
  powerpc/crypto: Build files for the nx device driver
  powerpc/crypto: debugfs routines and docs for the nx device driver
  powerpc/crypto: SHA512 hash routines for nx encryption
  powerpc/crypto: SHA256 hash routines for nx encryption
  powerpc/crypto: AES-XCBC mode routines for nx encryption
  powerpc/crypto: AES-GCM mode routines for nx encryption
  powerpc/crypto: AES-ECB mode routines for nx encryption
  powerpc/crypto: AES-CTR mode routines for nx encryption
  powerpc/crypto: AES-CCM mode routines for nx encryption
  powerpc/crypto: AES-CBC mode routines for nx encryption
  powerpc/crypto: nx driver code supporting nx encryption
  powerpc/pseries: Enable the PFO-based RNG accelerator
  powerpc/pseries/hwrng: PFO-based hwrng driver
  powerpc/pseries: Add PFO support to the VIO bus
  powerpc/pseries: Add pseries update notifier for OFDT prop changes
  powerpc/pseries: Add new hvcall constants to support PFO
  ...
2012-05-23 09:02:42 -07:00
Linus Torvalds
fb09bafda6 Staging tree pull request for 3.5-rc1
Here is the big staging tree pull request for the 3.5-rc1 merge window.
 
 Loads of changes here, and we just narrowly added more lines than we
 added:
  622 files changed, 28356 insertions(+), 26059 deletions(-)
 
 But, good news is that there is a number of subsystems that moved out of
 the staging tree, to their respective "real" portions of the kernel.
 
 Code that moved out was:
 	- iio core code
 	- mei driver
 	- vme core and bridge drivers
 
 There was one broken network driver that moved into staging as a step
 before it is removed from the tree (pc300), and there was a few new
 drivers added to the tree:
 	- new iio drivers
 	- gdm72xx wimax USB driver
 	- ipack subsystem and 2 drivers
 
 All of the movements around have acks from the various subsystem
 maintainers, and all of this has been in the linux-next tree for a
 while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree changes from Greg Kroah-Hartman:
 "Here is the big staging tree pull request for the 3.5-rc1 merge
  window.

  Loads of changes here, and we just narrowly added more lines than we
  added:
   622 files changed, 28356 insertions(+), 26059 deletions(-)

  But, good news is that there is a number of subsystems that moved out
  of the staging tree, to their respective "real" portions of the
  kernel.

  Code that moved out was:
	- iio core code
	- mei driver
	- vme core and bridge drivers

  There was one broken network driver that moved into staging as a step
  before it is removed from the tree (pc300), and there was a few new
  drivers added to the tree:
	- new iio drivers
	- gdm72xx wimax USB driver
	- ipack subsystem and 2 drivers

  All of the movements around have acks from the various subsystem
  maintainers, and all of this has been in the linux-next tree for a
  while.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fixed up various trivial conflicts, along with a non-trivial one found
in -next and pointed out by Olof Johanssen: a clean - but incorrect -
merge of the arch/arm/boot/dts/at91sam9g20.dtsi file.  Fix up manually
as per Stephen Rothwell.

* tag 'staging-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (536 commits)
  Staging: bcm: Remove two unused variables from Adapter.h
  Staging: bcm: Removes the volatile type definition from Adapter.h
  Staging: bcm: Rename all "INT" to "int" in Adapter.h
  Staging: bcm: Fix warning: __packed vs. __attribute__((packed)) in Adapter.h
  Staging: bcm: Correctly format all comments in Adapter.h
  Staging: bcm: Fix all whitespace issues in Adapter.h
  Staging: bcm: Properly format braces in Adapter.h
  Staging: ipack/bridges/tpci200: remove unneeded casts
  Staging: ipack/bridges/tpci200: remove TPCI200_SHORTNAME constant
  Staging: ipack: remove board_name and bus_name fields from struct ipack_device
  Staging: ipack: improve the register of a bus and a device in the bus.
  staging: comedi: cleanup all the comedi_driver 'detach' functions
  staging: comedi: remove all 'default N' in Kconfig
  staging: line6/config.h: Delete unused header
  staging: gdm72xx depends on NET
  staging: gdm72xx: Set up parent link in sysfs for gdm72xx devices
  staging: drm/omap: initial dmabuf/prime import support
  staging: drm/omap: dmabuf/prime mmap support
  pstore/ram: Add ECC support
  pstore/ram: Switch to persistent_ram routines
  ...
2012-05-22 16:34:21 -07:00
Linus Torvalds
5d4e2d08e7 Driver core pull for 3.5-rc1
Here's the driver core, and other driver subsystems, pull request for
 the 3.5-rc1 merge window.
 
 Outside of a few minor driver core changes, we ended up with the
 following different subsystem and core changes as well, due to
 interdependancies on the driver core:
  - hyperv driver updates
  - drivers/memory being created and some drivers moved into it
  - extcon driver subsystem created out of the old Android staging switch
    driver code
  - dynamic debug updates
  - printk rework, and /dev/kmsg changes
 
 All of this has been tested in the linux-next releases for a few weeks
 with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg Kroah-Hartman:
 "Here's the driver core, and other driver subsystems, pull request for
  the 3.5-rc1 merge window.

  Outside of a few minor driver core changes, we ended up with the
  following different subsystem and core changes as well, due to
  interdependancies on the driver core:
   - hyperv driver updates
   - drivers/memory being created and some drivers moved into it
   - extcon driver subsystem created out of the old Android staging
     switch driver code
   - dynamic debug updates
   - printk rework, and /dev/kmsg changes

  All of this has been tested in the linux-next releases for a few weeks
  with no reported problems.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fix up conflicts in drivers/extcon/extcon-max8997.c where git noticed
that a patch to the deleted drivers/misc/max8997-muic.c driver needs to
be applied to this one.

* tag 'driver-core-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (90 commits)
  uio_pdrv_genirq: get irq through platform resource if not set otherwise
  memory: tegra{20,30}-mc: Remove empty *_remove()
  printk() - isolate KERN_CONT users from ordinary complete lines
  sysfs: get rid of some lockdep false positives
  Drivers: hv: util: Properly handle version negotiations.
  Drivers: hv: Get rid of an unnecessary check in vmbus_prep_negotiate_resp()
  memory: tegra{20,30}-mc: Use dev_err_ratelimited()
  driver core: Add dev_*_ratelimited() family
  Driver Core: don't oops with unregistered driver in driver_find_device()
  printk() - restore prefix/timestamp printing for multi-newline strings
  printk: add stub for prepend_timestamp()
  ARM: tegra30: Make MC optional in Kconfig
  ARM: tegra20: Make MC optional in Kconfig
  ARM: tegra30: MC: Remove unnecessary BUG*()
  ARM: tegra20: MC: Remove unnecessary BUG*()
  printk: correctly align __log_buf
  ARM: tegra30: Add Tegra Memory Controller(MC) driver
  ARM: tegra20: Add Tegra Memory Controller(MC) driver
  printk() - restore timestamp printing at console output
  printk() - do not merge continuation lines of different threads
  ...
2012-05-22 16:02:13 -07:00
Linus Torvalds
fb2123fad3 Char/Misc patches for 3.5-rc1
Here are a few various char/misc tree patches for the 3.5-rc1 merge window.
 
 Nothing major here at all, just different driver updates and some parport dead
 code removal.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull Char/Misc patches from Greg Kroah-Hartman:
 "Here are a few various char/misc tree patches for the 3.5-rc1 merge
  window.

  Nothing major here at all, just different driver updates and some
  parport dead code removal.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'char-misc-3.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  parport: remove unused dead code from lowlevel drivers
  xilinx_hwicap: reset XHI_MAX_RETRIES
  xilinx_hwicap: add support for virtex6 FPGAs
  Support M95040 SPI EEPROM
  misc: add support for bmp18x chips to the bmp085 driver
  misc: bmp085: add device tree properties
  misc: clean up bmp085 driver
  misc: do not mark exported functions __devexit
  misc: add missing __devexit_p() annotations
  pch_phub: delete duplicate definitions
  misc: Fix irq leak in max8997_muic_probe error path
2012-05-22 15:53:59 -07:00
Linus Torvalds
9bc747bea5 arm-soc: First batch of cleanups
These cleanups are basically all over the place. The idea is to collect
 changes with minimal impact but large number of changes so we can avoid
 them from distracting in the diffstat in the other series.
 
 A significant number of lines get removed here, in particular because
 the ixp2000 and ixp23xx platforms get removed. These have never been
 extremely popular and have fallen into disuse over time with no active
 maintainer taking care of them. The u5500 soc never made it into a
 product, so we are removing it from the ux500 platform.
 
 Many good cleanups also went into the at91 and omap platforms, as has
 been the case for a number of releases.
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull first batch of arm-soc cleanups from Olof Johansson:
 "These cleanups are basically all over the place.  The idea is to
  collect changes with minimal impact but large number of changes so we
  can avoid them from distracting in the diffstat in the other series.

  A significant number of lines get removed here, in particular because
  the ixp2000 and ixp23xx platforms get removed.  These have never been
  extremely popular and have fallen into disuse over time with no active
  maintainer taking care of them.  The u5500 soc never made it into a
  product, so we are removing it from the ux500 platform.

  Many good cleanups also went into the at91 and omap platforms, as has
  been the case for a number of releases."

Trivial modify-delete conflicts in arch/arm/mach-{ixp2000,ixp23xx}

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (152 commits)
  ARM: clps711x: Cleanup IRQ handling
  ARM clps711x: Removed unused header mach/time.h
  ARM: clps711x: Added note about support EP731x CPU to Kconfig
  ARM: clps711x: Added missing register definitions
  ARM: clps711x: Used own subarch directory for store header file
  Dove: Fix Section mismatch warnings
  ARM: orion5x: ts78xx debugging changes
  ARM: orion5x: remove PM dependency from ts78xx
  ARM: orion5x: ts78xx fix NAND resource off by one
  ARM: orion5x: ts78xx whitespace cleanups
  Orion5x: Fix Section mismatch warnings
  Orion5x: Fix warning: struct pci_dev declared inside paramter list
  ARM: clps711x: Combine header files into one for clps711x-targets
  ARM: S3C24XX: Use common macro to define resources on mach-qt2410.c
  ARM: S3C24XX: Use common macro to define resources on mach-osiris.c
  ARM: EXYNOS: Adapt to cpuidle core time keeping and irq enable
  ARM: S5PV210: Use common macro to define resources on mach-smdkv210.c
  ARM: S5PV210: Use common macro to define resources on dev-audio.c
  ARM: S5PC100: Use common macro to define resources on dev-audio.c
  ARM: S5P64X0: Use common macro to define resources on dev-audio.c
  ...
2012-05-22 09:23:24 -07:00
Eugeni Dodonov
c14f52860e drm/i915: hook Haswell devices in place
This patch enables i915 driver to handle Haswell devices. It should go in
last, when things are working stable enough.

Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-05-19 22:39:52 +02:00
Amit Shah
fa8b66ccd2 virtio: console: tell host of open ports after resume from s3/s4
If a port was open before going into one of the sleep states, the port
can continue normal operation after restore.  However, the host has to
be told that the guest side of the connection is open to restore
pre-suspend state.

This wasn't noticed so far due to a bug in qemu that was fixed recently
(which marked the guest-side connection as always open).

CC: stable@vger.kernel.org   # Only for 3.3

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-05-17 12:14:33 +03:00
Anton Vorontsov
1894a253db ramoops: Move to fs/pstore/ram.c
Since ramoops was converted to pstore, it has nothing to do with character
devices nowadays. Instead, today it is just a RAM backend for pstore.

The patch just moves things around. There are a few changes were needed
because of the move:

1. Kconfig and Makefiles fixups, of course.

2. In pstore/ram.c we have to play a bit with MODULE_PARAM_PREFIX, this
   is needed to keep user experience the same as with ramoops driver
   (i.e. so that ramoops.foo kernel command line arguments would still
   work).

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Marco Stornelli <marco.stornelli@gmail.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-16 08:06:37 -07:00
Randy Dunlap
d109a674a3 ramoops: fix printk format warnings
Fix printk format warnings for phys_addr_t type variables:

drivers/char/ramoops.c:246:3: warning: format '%llx' expects type 'long long unsigned int', but argument 3 has type 'phys_addr_t'
drivers/char/ramoops.c:273:2: warning: format '%llx' expects type 'long long unsigned int', but argument 3 has type 'phys_addr_t'

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-16 08:06:34 -07:00
Kees Cook
9ba80d99c8 ramoops: use pstore interface
Instead of using /dev/mem directly and forcing userspace to know (or
extract) where the platform has defined persistent memory, how many slots
it has, the sizes, etc, use the common pstore infrastructure to handle
Oops gathering and extraction.  This presents a much easier to use
filesystem-based view to the memory region.  This also means that any
other tools that are written to understand pstore will automatically be
able to process ramoops too.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Marco Stornelli <marco.stornelli@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-16 08:06:33 -07:00
Herbert Xu
b29e2679d0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux
Merge mainline to add prerequisite for ARM ux500 crypto support.
2012-05-15 17:21:26 +10:00
Kent Yoder
649e9ea0ab powerpc/pseries/hwrng: PFO-based hwrng driver
Adds support for the Platform Facilities Option (PFO)-based hardware
random number generator for POWER hardware.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-05-14 10:49:12 +10:00
Kay Sievers
7f3a781d6f printk - fix compilation for CONFIG_PRINTK=n
Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-09 15:51:09 -07:00
Kay Sievers
e11fea92e1 kmsg: export printk records to the /dev/kmsg interface
Support for multiple concurrent readers of /dev/kmsg, with read(),
seek(), poll() support. Output of message sequence numbers, to allow
userspace log consumers to reliably reconnect and reconstruct their
state at any given time. After open("/dev/kmsg"), read() always
returns *all* buffered records. If only future messages should be
read, SEEK_END can be used. In case records get overwritten while
/dev/kmsg is held open, or records get faster overwritten than they
are read, the next read() will return -EPIPE and the current reading
position gets updated to the next available record. The passed
sequence numbers allow the log consumer to calculate the amount of
lost messages.

  [root@mop ~]# cat /dev/kmsg
  5,0,0;Linux version 3.4.0-rc1+ (kay@mop) (gcc version 4.7.0 20120315 ...
  6,159,423091;ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
  7,160,424069;pci_root PNP0A03:00: host bridge window [io  0x0000-0x0cf7] (ignored)
   SUBSYSTEM=acpi
   DEVICE=+acpi:PNP0A03:00
  6,339,5140900;NET: Registered protocol family 10
  30,340,5690716;udevd[80]: starting version 181
  6,341,6081421;FDC 0 is a S82078B
  6,345,6154686;microcode: CPU0 sig=0x623, pf=0x0, revision=0x0
  7,346,6156968;sr 1:0:0:0: Attached scsi CD-ROM sr0
   SUBSYSTEM=scsi
   DEVICE=+scsi:1:0:0:0
  6,347,6289375;microcode: CPU1 sig=0x623, pf=0x0, revision=0x0

Cc: Karel Zak <kzak@redhat.com>
Tested-by: William Douglas <william.douglas@intel.com>
Signed-off-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-07 17:03:27 -07:00
Kay Sievers
7ff9554bb5 printk: convert byte-buffer to variable-length record buffer
- Record-based stream instead of the traditional byte stream
  buffer. All records carry a 64 bit timestamp, the syslog facility
  and priority in the record header.

- Records consume almost the same amount, sometimes less memory than
  the traditional byte stream buffer (if printk_time is enabled). The record
  header is 16 bytes long, plus some padding bytes at the end if needed.
  The byte-stream buffer needed 3 chars for the syslog prefix, 15 char for
  the timestamp and a newline.

- Buffer management is based on message sequence numbers. When records
  need to be discarded, the reading heads move on to the next full
  record. Unlike the byte-stream buffer, no old logged lines get
  truncated or partly overwritten by new ones. Sequence numbers also
  allow consumers of the log stream to get notified if any message in
  the stream they are about to read gets discarded during the time
  of reading.

- Better buffered IO support for KERN_CONT continuation lines, when printk()
  is called multiple times for a single line. The use of KERN_CONT is now
  mandatory to use continuation; a few places in the kernel need trivial fixes
  here. The buffering could possibly be extended to per-cpu variables to allow
  better thread-safety for multiple printk() invocations for a single line.

- Full-featured syslog facility value support. Different facilities
  can tag their messages. All userspace-injected messages enforce a
  facility value > 0 now, to be able to reliably distinguish them from
  the kernel-generated messages. Independent subsystems like a
  baseband processor running its own firmware, or a kernel-related
  userspace process can use their own unique facility values. Multiple
  independent log streams can co-exist that way in the same
  buffer. All share the same global sequence number counter to ensure
  proper ordering (and interleaving) and to allow the consumers of the
  log to reliably correlate the events from different facilities.

Tested-by: William Douglas <william.douglas@intel.com>
Signed-off-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-07 16:53:02 -07:00
Dave Airlie
5bc69bf9ae Merge tag 'drm-intel-next-2012-04-23' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next
Daniel Vetter writes:

A new drm-intel-next pull. Highlights:
- More gmbus patches from Daniel Kurtz, I think gmbus is now ready, all
 known issues fixed.
- Fencing cleanup and pipelined fencing removal from Chris.
- rc6 residency interface from Ben, useful for powertop.
- Cleanups and code reorg around the ringbuffer code (Ben&me).
- Use hw semaphores in the pageflip code from Ben.
- More vlv stuff from Jesse, unfortunately his vlv cpu is doa, so less
 merged than I've hoped for - we still have the unused function warning :(
- More hsw patches from Eugeni, again, not yet enabled fully.
- intel_pm.c refactoring from Eugeni.
- Ironlake sprite support from Chris.
- And various smaller improvements/fixes all over the place.

Note that this pull request also contains a backmerge of -rc3 to sort out
a few things in -next. I've also had to frob the shortlog a bit to exclude
anything that -rc3 brings in with this pull.

Regression wise we have a few strange bugs going on, but for all of them
closer inspection revealed that they've been pre-existing, just now
slightly more likely to be hit. And for most of them we have a patch
already. Otherwise QA has not reported any regressions, and I'm also not
aware of anything bad happening in 3.4.

* tag 'drm-intel-next-2012-04-23' of git://people.freedesktop.org/~danvet/drm-intel: (420 commits)
  drm/i915: rc6 residency (fix the fix)
  drm/i915/tv: fix open-coded ARRAY_SIZE.
  drm/i915: invalidate render cache on gen2
  drm/i915: Silence the change of LVDS sync polarity
  drm/i915: add generic power management initialization
  drm/i915: move clock gating functionality into intel_pm module
  drm/i915: move emon functionality into intel_pm module
  drm/i915: move drps, rps and rc6-related functions to intel_pm
  drm/i915: fix line breaks in intel_pm
  drm/i915: move watermarks settings into intel_pm module
  drm/i915: move fbc-related functionality into intel_pm module
  drm/i915: Refactor get_fence() to use the common fence writing routine
  drm/i915: Refactor fence clearing to use the common fence writing routine
  drm/i915: Refactor put_fence() to use the common fence writing routine
  drm/i915: Prepare to consolidate fence writing
  drm/i915: Remove the unsightly "optimisation" from flush_fence()
  drm/i915: Simplify fence finding
  drm/i915: Discard the unused obj->last_fenced_ring
  drm/i915: Remove unused ring->setup_seqno
  drm/i915: Remove fence pipelining
  ...
2012-05-02 09:22:29 +01:00
Nicolas Ferre
028fdd87b7 hwrng: Kconfig - modify default state for atmel-rng driver
In order to prevent building the Atmel hw_random driver for each and every
configuration, add a "default" Kconfig state in relation with
CONFIG_ARCH_AT91.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-04-30 20:00:35 +10:00
Julia Lawall
945478a727 hwrng: omap - use devm_request_and_ioremap
Using devm_request_and_ioremap is more concise.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-04-27 11:28:29 +10:00
Daniel Borkmann
1790625feb xilinx_hwicap: reset XHI_MAX_RETRIES
Reset the XHI_MAX_RETRIES value. This allows the hardware enough time to
write configuration frames during partial reconfiguration. In case of 10
the driver returns an error, although it should just have polled the
register longer.

Tested on an ML605 board. The patch is against the latest linus-tree.

Signed-off-by: Ariane Keller <ariane.keller@tik.ee.ethz.ch>
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-19 19:09:18 -07:00
Daniel Borkmann
73eb94a094 xilinx_hwicap: add support for virtex6 FPGAs
This patch adds support for the virtex6 FPGA to the xilinx_hwicap driver.

Tested on a Xilinx ML605 board. The patch is against the latest linus-tree.

Signed-off-by: Ariane Keller <ariane.keller@tik.ee.ethz.ch>
Signed-off-by: Daniel Borkmann <daniel.borkmann@tik.ee.ethz.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-19 19:09:18 -07:00
Daniel Vetter
767878908e Linux 3.4-rc3
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Merge tag 'v3.4-rc3' into drm-intel-next-queued

Backmerge Linux 3.4-rc3 into drm-intel-next to resolve a few things
that conflict/depend upon patches in -rc3:
- Second part of the Sandybridge workaround series - it changes some
  of the same registers.
- Preparation for Chris Wilson's fencing cleanup - we need the fix
  from -rc3 merged before we can move around all that code.
- Resolve the gmbus conflict - gmbus has been disabled in 3.4 again,
  but should be enabled on all generations in 3.5.

Conflicts:
	drivers/gpu/drm/i915/intel_i2c.c

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-17 11:16:20 +02:00
Nicolas Ferre
1234f4bada hwrng: Kconfig: remove dependency for atmel-rng driver
This will allow to select this driver for newer SoCs. Make sure to
keep dependency on HAVE_CLK to avoid breaking other machines.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-04-16 12:47:18 +02:00
Linus Torvalds
f4f9c1ac78 tty and serial fixes for 3.4-rc2
Here are some tty and serial fixes for 3.4-rc2.
 
 Most important here is the pl011 fix, which has been reported by about
 100 different people, which means more people use it than I expected :)
 
 There are also some 8250 driver reverts due to some problems reported by
 them.  And other minor fixes as well.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty and serial fixes from Greg KH:
 "Here are some tty and serial fixes for 3.4-rc2.

  Most important here is the pl011 fix, which has been reported by about
  100 different people, which means more people use it than I expected
  :)

  There are also some 8250 driver reverts due to some problems reported
  by them.  And other minor fixes as well.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

* tag 'tty-3.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  pch_uart: Add Kontron COMe-mTT10 uart clock quirk
  pch_uart: Fix MSI setting issue
  serial/8250_pci: add a "force background timer" flag and use it for the "kt" serial port
  Revert "serial/8250_pci: setup-quirk workaround for the kt serial controller"
  Revert "serial/8250_pci: init-quirk msi support for kt serial controller"
  tty/serial/omap: console can only be built-in
  serial: samsung: fix omission initialize ulcon in reset port fn()
  printk(): add KERN_CONT where needed in hpet and vt code
  tty/serial: atmel_serial: fix RS485 half-duplex problem
  tty: serial: altera_uart: Check for NULL platform_data in probe.
  isdn/gigaset: use gig_dbg() for debugging output
  omap-serial: Fix the error handling in the omap_serial probe
  serial: PL011: move interrupt clearing
2012-04-12 15:36:33 -07:00
Mathieu Desnoyers
44e4360fa3 drivers/char/random.c: fix boot id uniqueness race
/proc/sys/kernel/random/boot_id can be read concurrently by userspace
processes.  If two (or more) user-space processes concurrently read
boot_id when sysctl_bootid is not yet assigned, a race can occur making
boot_id differ between the reads.  Because the whole point of the boot id
is to be unique across a kernel execution, fix this by protecting this
operation with a spinlock.

Given that this operation is not frequently used, hitting the spinlock
on each call should not be an issue.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Matt Mackall <mpm@selenic.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-12 13:12:12 -07:00
Santosh Nayak
ae85226ebe agp: Use u32 __iomem annotation to silence sparse warning.
Replace "void *" by "u32 __iomem *" to silence sparse warning.

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-04-12 17:56:21 +01:00
Santosh Nayak
971ca47178 agp: Remove 'break' after 'return' statement.
'break' is unnecessary after 'return' statement.
Remove all such 'break' as clean up.

Signed-off-by: Santosh Nayak <santoshprasadnayak@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-04-12 17:56:17 +01:00
Dave Airlie
effbc4fd8e Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next
Daniel Vetter wrote
First pull request for 3.5-next, slightly large than usual because new
things kept coming in since the last pull for 3.4.
Highlights:
- first batch of hw enablement for vlv (Jesse et al) and hsw (Eugeni). pci
 ids are not yet added, and there's still quite a few patches to merge
 (mostly modesetting). To make QA easier I've decided to merge this stuff
 in pieces.
- loads of cleanups and prep patches spurred by the above. Especially vlv
 is a real frankenstein chip, but also hsw is stretching our driver's
 code design. Expect more to come in this area for 3.5.
- more gmbus fixes, cleanups and improvements by Daniel Kurtz. Again,
 there are more patches needed (and some already queued up), but I wanted
 to split this a bit for better testing.
- pwrite/pread rework and retuning. This series has been in the works for
 a few months already and a lot of i-g-t tests have been created for it.
 Now it's finally ready to be merged.  Note that one patch in this series
 touches include/pagemap.h, that patch is acked-by akpm.
- reduce mappable pressure and relocation throughput improvements from
 Chris.
- mmap offset exhaustion mitigation by Chris Wilson.
- a start at figuring out which codepaths in our messy dri1/ums+gem/kms
 driver we actually need to support by bailing out of unsupported case.
 The driver now refuses to load without kms on gen6+ and disallows a few
 ioctls that userspace never used in certain cases. More of this will
 definitely come.
- More decoupling of global gtt and ppgtt.
- Improved dual-link lvds detection by Takashi Iwai.
- Shut up the compiler + plus fix the fallout (Ben)
- Inverted panel brightness handling (mostly Acer manages to break things
 in this way).
- Small fixlets and adjustements and some minor things to help debugging.

Regression-wise QA reported quite a few issues on ivb, but all of them
turned out to be hw stability issues which are already fixed in
drm-intel-fixes (QA runs the nightly regression tests on -next alone,
without -fixes automatically merged in). There's still one issue open on
snb, it looks like occlusion query writes are not quite as cache coherent
as we've expected. With some of the pwrite adjustements we can now
reliably hit this. Kernel workaround for it is in the works."

* 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel: (101 commits)
  drm/i915: VCS is not the last ring
  drm/i915: Add a dual link lvds quirk for MacBook Pro 8,2
  drm/i915: make quirks more verbose
  drm/i915: dump the DMA fetch addr register on pre-gen6
  drm/i915/sdvo: Include YRPB as an additional TV output type
  drm/i915: disallow gem init ioctl on ilk
  drm/i915: refuse to load on gen6+ without kms
  drm/i915: extract gt interrupt handler
  drm/i915: use render gen to switch ring irq functions
  drm/i915: rip out old HWSTAM missed irq WA for vlv
  drm/i915: open code gen6+ ring irqs
  drm/i915: ring irq cleanups
  drm/i915: add SFUSE_STRAP registers for digital port detection
  drm/i915: add WM_LINETIME registers
  drm/i915: add WRPLL clocks
  drm/i915: add LCPLL control registers
  drm/i915: add SSC offsets for SBI access
  drm/i915: add port clock selection support for HSW
  drm/i915: add S PLL control
  drm/i915: add PIXCLK_GATE register
  ...

Conflicts:
	drivers/char/agp/intel-agp.h
	drivers/char/agp/intel-gtt.c
	drivers/gpu/drm/i915/i915_debugfs.c
2012-04-12 10:27:01 +01:00
Kay Sievers
5da527aafe printk(): add KERN_CONT where needed in hpet and vt code
A prototype for kmsg records instead of a byte-stream buffer revealed
a couple of missing printk(KERN_CONT ...) uses. Subsequent calls produce
one record per printk() call, while all should have ended up in a single
record.

Instead of:
  ACPI: (supports S0 S5)
  ACPI: PCI Interrupt Link [LNKA] (IRQs 5 *10 11)
  hpet0: at MMIO 0xfed00000, IRQs 2 , 8 , 0

It prints:
  ACPI: (supports S0
   S5
  )
  ACPI: PCI Interrupt Link [LNKA] (IRQs
   5
   *10
   11
  )
  hpet0: at MMIO 0xfed00000, IRQs
   2
  , 8
  , 0

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-09 10:30:39 -07:00
Eugeni Dodonov
4cae9ae052 drm/i915: add Haswell devices and their PCI IDs
This adds product definitions for desktop, mobile and server boards.

v2: split into a separate patch, add .has_pch_split feature.

Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-09 18:03:58 +02:00
Linus Torvalds
4157368edb Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile bug fixes from Chris Metcalf:
 "This includes Paul Gortmaker's change to fix the <asm/system.h>
  disintegration issues on tile, a fix to unbreak the tilepro ethernet
  driver, and a backlog of bugfix-only changes from internal Tilera
  development over the last few months.

  They have all been to LKML and on linux-next for the last few days.
  The EDAC change to MAINTAINERS is an oddity but discussion on the
  linux-edac list suggested I ask you to pull that change through my
  tree since they don't have a tree to pull edac changes from at the
  moment."

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: (39 commits)
  drivers/net/ethernet/tile: fix netdev_alloc_skb() bombing
  MAINTAINERS: update EDAC information
  tilepro ethernet driver: fix a few minor issues
  tile-srom.c driver: minor code cleanup
  edac: say "TILEGx" not "TILEPro" for the tilegx edac driver
  arch/tile: avoid accidentally unmasking NMI-type interrupt accidentally
  arch/tile: remove bogus performance optimization
  arch/tile: return SIGBUS for addresses that are unaligned AND invalid
  arch/tile: fix finv_buffer_remote() for tilegx
  arch/tile: use atomic exchange in arch_write_unlock()
  arch/tile: stop mentioning the "kvm" subdirectory
  arch/tile: export the page_home() function.
  arch/tile: fix pointer cast in cacheflush.c
  arch/tile: fix single-stepping over swint1 instructions on tilegx
  arch/tile: implement panic_smp_self_stop()
  arch/tile: add "nop" after "nap" to help GX idle power draw
  arch/tile: use proper memparse() for "maxmem" options
  arch/tile: fix up locking in pgtable.c slightly
  arch/tile: don't leak kernel memory when we unload modules
  arch/tile: fix bug in delay_backoff()
  ...
2012-04-06 17:56:20 -07:00
Linus Torvalds
fb9d78aca7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm
Pull an APM fix from Jiri Kosina:
 "One deadlock/race fix from Niel that got introduced when we were
  moving away from freezer_*_count() to wait_event_freezable()."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/apm:
  APM: fix deadlock in APM_IOC_SUSPEND ioctl
2012-04-05 17:34:30 -07:00
Linus Torvalds
5d32c88f0b Merge branch 'akpm' (Andrew's patch-bomb)
Merge batch of fixes from Andrew Morton:
 "The simple_open() cleanup was held back while I wanted for laggards to
  merge things.

  I still need to send a few checkpoint/restore patches.  I've been
  wobbly about merging them because I'm wobbly about the overall
  prospects for success of the project.  But after speaking with Pavel
  at the LSF conference, it sounds like they're further toward
  completion than I feared - apparently davem is at the "has stopped
  complaining" stage regarding the net changes.  So I need to go back
  and re-review those patchs and their (lengthy) discussion."

* emailed from Andrew Morton <akpm@linux-foundation.org>: (16 patches)
  memcg swap: use mem_cgroup_uncharge_swap fix
  backlight: add driver for DA9052/53 PMIC v1
  C6X: use set_current_blocked() and block_sigmask()
  MAINTAINERS: add entry for sparse checker
  MAINTAINERS: fix REMOTEPROC F: typo
  alpha: use set_current_blocked() and block_sigmask()
  simple_open: automatically convert to simple_open()
  scripts/coccinelle/api/simple_open.cocci: semantic patch for simple_open()
  libfs: add simple_open()
  hugetlbfs: remove unregister_filesystem() when initializing module
  drivers/rtc/rtc-88pm860x.c: fix rtc irq enable callback
  fs/xattr.c:setxattr(): improve handling of allocation failures
  fs/xattr.c:listxattr(): fall back to vmalloc() if kmalloc() failed
  fs/xattr.c: suppress page allocation failure warnings from sys_listxattr()
  sysrq: use SEND_SIG_FORCED instead of force_sig()
  proc: fix mount -t proc -o AAA
2012-04-05 15:30:34 -07:00
Stephen Boyd
234e340582 simple_open: automatically convert to simple_open()
Many users of debugfs copy the implementation of default_open() when
they want to support a custom read/write function op.  This leads to a
proliferation of the default_open() implementation across the entire
tree.

Now that the common implementation has been consolidated into libfs we
can replace all the users of this function with simple_open().

This replacement was done with the following semantic patch:

<smpl>
@ open @
identifier open_f != simple_open;
identifier i, f;
@@
-int open_f(struct inode *i, struct file *f)
-{
(
-if (i->i_private)
-f->private_data = i->i_private;
|
-f->private_data = i->i_private;
)
-return 0;
-}

@ has_open depends on open @
identifier fops;
identifier open.open_f;
@@
struct file_operations fops = {
...
-.open = open_f,
+.open = simple_open,
...
};
</smpl>

[akpm@linux-foundation.org: checkpatch fixes]
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-04-05 15:25:50 -07:00
NeilBrown
f283d22713 APM: fix deadlock in APM_IOC_SUSPEND ioctl
I found the Xorg server on my ARM device stuck in the 'msleep()' loop
in apm_ioctl.

I suspect it had attempted suspend immediately after resuming and lost
a race.
During that msleep(10);, a new suspend cycle must have started and
changed ->suspend_state to SUSPEND_PENDING, so it was never seen to
be SUSPEND_DONE and the loop could never exited.  It would have moved on
to SUSPEND_ACKTO but never been able to reach SUSPEND_DONE.

So change the loop to only run while SUSPEND_ACKED rather than until
SUSPEND_DONE.  This is much safer.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-04-03 03:42:36 +02:00
Chris Metcalf
16418bb1da tile-srom.c driver: minor code cleanup
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2012-04-02 12:14:10 -04:00
Daniel Vetter
650dc07ec3 drm/i915: disable ppgtt on snb when dmar is enabled
Totally unexpected that this regressed. Luckily it sounds like we just
need to have dmar disable on the igfx, not the entire system. At least
that's what a few days of testing between Tony Vroon and me indicates.

Reported-by: Tony Vroon <tony@linx.net>
Cc: Tony Vroon <tony@linx.net>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43024
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-02 15:59:07 +02:00
Eugeni Dodonov
cc22a938fc drm/i915: add Ivy Bridge GT2 Server entries
This adds PCI ID for IVB GT2 server variant which we were missing.

Signed-off-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
[danvet: fix up conflict because the patch has been diffed against next. tsk.]
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-04-02 15:58:47 +02:00
Linus Torvalds
a591afc01d Merge branch 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x32 support for x86-64 from Ingo Molnar:
 "This tree introduces the X32 binary format and execution mode for x86:
  32-bit data space binaries using 64-bit instructions and 64-bit kernel
  syscalls.

  This allows applications whose working set fits into a 32 bits address
  space to make use of 64-bit instructions while using a 32-bit address
  space with shorter pointers, more compressed data structures, etc."

Fix up trivial context conflicts in arch/x86/{Kconfig,vdso/vma.c}

* 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
  x32: Fix alignment fail in struct compat_siginfo
  x32: Fix stupid ia32/x32 inversion in the siginfo format
  x32: Add ptrace for x32
  x32: Switch to a 64-bit clock_t
  x32: Provide separate is_ia32_task() and is_x32_task() predicates
  x86, mtrr: Use explicit sizing and padding for the 64-bit ioctls
  x86/x32: Fix the binutils auto-detect
  x32: Warn and disable rather than error if binutils too old
  x32: Only clear TIF_X32 flag once
  x32: Make sure TS_COMPAT is cleared for x32 tasks
  fs: Remove missed ->fds_bits from cessation use of fd_set structs internally
  fs: Fix close_on_exec pointer in alloc_fdtable
  x32: Drop non-__vdso weak symbols from the x32 VDSO
  x32: Fix coding style violations in the x32 VDSO code
  x32: Add x32 VDSO support
  x32: Allow x32 to be configured
  x32: If configured, add x32 system calls to system call tables
  x32: Handle process creation
  x32: Signal-related system calls
  x86: Add #ifdef CONFIG_COMPAT to <asm/sys_ia32.h>
  ...
2012-03-29 18:12:23 -07:00
Linus Torvalds
532bfc851a Merge branch 'akpm' (Andrew's patch-bomb)
Merge third batch of patches from Andrew Morton:
 - Some MM stragglers
 - core SMP library cleanups (on_each_cpu_mask)
 - Some IPI optimisations
 - kexec
 - kdump
 - IPMI
 - the radix-tree iterator work
 - various other misc bits.

 "That'll do for -rc1.  I still have ~10 patches for 3.4, will send
  those along when they've baked a little more."

* emailed from Andrew Morton <akpm@linux-foundation.org>: (35 commits)
  backlight: fix typo in tosa_lcd.c
  crc32: add help text for the algorithm select option
  mm: move hugepage test examples to tools/testing/selftests/vm
  mm: move slabinfo.c to tools/vm
  mm: move page-types.c from Documentation to tools/vm
  selftests/Makefile: make `run_tests' depend on `all'
  selftests: launch individual selftests from the main Makefile
  radix-tree: use iterators in find_get_pages* functions
  radix-tree: rewrite gang lookup using iterator
  radix-tree: introduce bit-optimized iterator
  fs/proc/namespaces.c: prevent crash when ns_entries[] is empty
  nbd: rename the nbd_device variable from lo to nbd
  pidns: add reboot_pid_ns() to handle the reboot syscall
  sysctl: use bitmap library functions
  ipmi: use locks on watchdog timeout set on reboot
  ipmi: simplify locking
  ipmi: fix message handling during panics
  ipmi: use a tasklet for handling received messages
  ipmi: increase KCS timeouts
  ipmi: decrease the IPMI message transaction time in interrupt mode
  ...
2012-03-28 17:19:28 -07:00
Corey Minyard
423a5bb49e ipmi: use locks on watchdog timeout set on reboot
The IPMI watchdog timer clears or extends the timer on reboot/shutdown.
It was using the non-locking routine for setting the watchdog timer, but
this was causing race conditions.  Instead, use the locking version to
avoid the races.  It seems to work fine.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28 17:14:36 -07:00
Corey Minyard
f60adf42ad ipmi: simplify locking
Now that the the IPMI driver is using a tasklet, we can simplify the
locking in the driver and get rid of the message lock.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28 17:14:36 -07:00
Corey Minyard
895dcfd1ca ipmi: fix message handling during panics
The part of the IPMI driver that delivered panic information to the event
log and extended the watchdog timeout during a panic was not properly
handling the messages.  It used static messages to avoid allocation, but
wasn't properly waiting for these, or wasn't properly handling the
refcounts.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28 17:14:36 -07:00
Corey Minyard
7adf579c8b ipmi: use a tasklet for handling received messages
The IPMI driver would release a lock, deliver a message, then relock.
This is obviously ugly, and this patch converts the message handler
interface to use a tasklet to schedule work.  This lets the receive
handler be called from an interrupt handler with interrupts enabled.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28 17:14:36 -07:00
Matthew Garrett
828dc9da50 ipmi: increase KCS timeouts
We currently time out and retry KCS transactions after 1 second of waiting
for IBF or OBF.  This appears to be too short for some hardware.  The IPMI
spec says "All system software wait loops should include error timeouts.
For simplicity, such timeouts are not shown explicitly in the flow
diagrams.  A five-second timeout or greater is recommended".  Change the
timeout to five seconds to satisfy the slow hardware.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28 17:14:36 -07:00
Srinivas_Gowda
b88e769368 ipmi: decrease the IPMI message transaction time in interrupt mode
Call the event handler immediately after starting the next message.

This change considerably decreases the IPMI transaction time (cuts off
~9ms for a single ipmitool transaction).

Signed-off-by: Srinivas_Gowda <srinivas_g_gowda@dell.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-28 17:14:36 -07:00
Linus Torvalds
0195c00244 Disintegrate and delete asm/system.h
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Merge tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system

Pull "Disintegrate and delete asm/system.h" from David Howells:
 "Here are a bunch of patches to disintegrate asm/system.h into a set of
  separate bits to relieve the problem of circular inclusion
  dependencies.

  I've built all the working defconfigs from all the arches that I can
  and made sure that they don't break.

  The reason for these patches is that I recently encountered a circular
  dependency problem that came about when I produced some patches to
  optimise get_order() by rewriting it to use ilog2().

  This uses bitops - and on the SH arch asm/bitops.h drags in
  asm-generic/get_order.h by a circuituous route involving asm/system.h.

  The main difficulty seems to be asm/system.h.  It holds a number of
  low level bits with no/few dependencies that are commonly used (eg.
  memory barriers) and a number of bits with more dependencies that
  aren't used in many places (eg.  switch_to()).

  These patches break asm/system.h up into the following core pieces:

    (1) asm/barrier.h

        Move memory barriers here.  This already done for MIPS and Alpha.

    (2) asm/switch_to.h

        Move switch_to() and related stuff here.

    (3) asm/exec.h

        Move arch_align_stack() here.  Other process execution related bits
        could perhaps go here from asm/processor.h.

    (4) asm/cmpxchg.h

        Move xchg() and cmpxchg() here as they're full word atomic ops and
        frequently used by atomic_xchg() and atomic_cmpxchg().

    (5) asm/bug.h

        Move die() and related bits.

    (6) asm/auxvec.h

        Move AT_VECTOR_SIZE_ARCH here.

  Other arch headers are created as needed on a per-arch basis."

Fixed up some conflicts from other header file cleanups and moving code
around that has happened in the meantime, so David's testing is somewhat
weakened by that.  We'll find out anything that got broken and fix it..

* tag 'split-asm_system_h-for-linus-20120328' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-asm_system: (38 commits)
  Delete all instances of asm/system.h
  Remove all #inclusions of asm/system.h
  Add #includes needed to permit the removal of asm/system.h
  Move all declarations of free_initmem() to linux/mm.h
  Disintegrate asm/system.h for OpenRISC
  Split arch_align_stack() out from asm-generic/system.h
  Split the switch_to() wrapper out of asm-generic/system.h
  Move the asm-generic/system.h xchg() implementation to asm-generic/cmpxchg.h
  Create asm-generic/barrier.h
  Make asm-generic/cmpxchg.h #include asm-generic/cmpxchg-local.h
  Disintegrate asm/system.h for Xtensa
  Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt]
  Disintegrate asm/system.h for Tile
  Disintegrate asm/system.h for Sparc
  Disintegrate asm/system.h for SH
  Disintegrate asm/system.h for Score
  Disintegrate asm/system.h for S390
  Disintegrate asm/system.h for PowerPC
  Disintegrate asm/system.h for PA-RISC
  Disintegrate asm/system.h for MN10300
  ...
2012-03-28 15:58:21 -07:00
Jesse Barnes
6475787621 agp/intel: add ValleyView AGP driver
... and bind it right to the PCI id.

Note that there are still a few things to fix here:
- we need to move the tlb flush to a better place in drm/i915.
- we need to check snoop support on vlv and implement it.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: squash follow-on patch and add todo items to commit msg.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-03-29 00:07:38 +02:00
Jesse Barnes
4b60d29ee0 agp/intel: map more registers for use by the GTT code
We need to flush the Gunit TLB when we update GTT PTEs on VLV, but the
register for doing so is above the range we normally map.  Map the whole
register space to make sure we can get it.

v2: only map the larger space on gen7+ (Daniel)

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-03-29 00:02:25 +02:00
Linus Torvalds
750f77064a Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
 - Removal of the Documentation/watchdog/00-INDEX file
 - Fix boot status reporting for imx2_wdt
 - clean-up sp805_wdt, pnx4008_wdt and mpcore_wdt
 - convert printk in watchdog drivers to pr_ functions
 - change nowayout module parameter to bool for every watchdog device
 - conversion of jz4740_wdt, pnx4008_wdt, max63xx_wdt, softdog,
   ep93xx_wdt, coh901327 and txx9wdt to new watchdog API
 - Add support for the WDIOC_GETTIMELEFT ioctl call to the new watchdog
   API
 - Change the new watchdog API so that the driver updates the timeout
   value
 - two fixes for the xen_wdt driver

Fix up conflicts in ep93xx driver due to the same patches being merged
through separate branches.

* git://www.linux-watchdog.org/linux-watchdog: (33 commits)
  watchdog: txx9wdt: fix timeout
  watchdog: Convert txx9wdt driver to watchdog framework
  watchdog: coh901327_wdt.c: fix timeout
  watchdog: coh901327: convert to use watchdog core
  watchdog: Add support for WDIOC_GETTIMELEFT IOCTL in watchdog core
  watchdog: ep93xx_wdt: timeout is an unsigned int value.
  watchdog: ep93xx_wdt: Fix timeout after conversion to watchdog core
  watchdog: Convert ep93xx driver to watchdog core
  watchdog: sp805: Use devm routines
  watchdog: sp805: replace readl/writel with lighter _relaxed variants
  watchdog: sp805: Fix documentation style comment
  watchdog: mpcore_wdt: Allow platform_get_irq() to fail
  watchdog: mpcore_wdt: Use devm routines
  watchdog: mpcore_wdt: Rename dev to pdev for pointing to struct platform_device
  watchdog: xen: don't clear is_active when xen_wdt_stop() failed
  watchdog: xen: don't unconditionally enable the watchdog during resume
  watchdog: fix compiler error for missing parenthesis
  watchdog: ep93xx_wdt.c: fix platform probe
  watchdog: ep93xx: Convert the watchdog driver into a platform device.
  watchdog: fix set_timeout operations
  ...
2012-03-28 13:03:26 -07:00
David Howells
9ffc93f203 Remove all #inclusions of asm/system.h
Remove all #inclusions of asm/system.h preparatory to splitting and killing
it.  Performed with the following command:

perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *`

Signed-off-by: David Howells <dhowells@redhat.com>
2012-03-28 18:30:03 +01:00
Linus Torvalds
d61b7a572b ARM: global cleanups
Quite a bit of code gets removed, and some stuff moved around, mostly
 the old samsung s3c24xx stuff. There should be no functional changes
 in this series otherwise. Some cleanups have dependencies on other
 arm-soc branches and will be sent in the second round.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull "ARM: global cleanups" from Arnd Bergmann:
 "Quite a bit of code gets removed, and some stuff moved around, mostly
  the old samsung s3c24xx stuff.  There should be no functional changes
  in this series otherwise.  Some cleanups have dependencies on other
  arm-soc branches and will be sent in the second round.

  Signed-off-by: Arnd Bergmann <arnd@arndb.de>"

Fixed up trivial conflicts mainly due to #include's being changes on
both sides.

* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (121 commits)
  ep93xx: Remove unnecessary includes of ep93xx-regs.h
  ep93xx: Move EP93XX_SYSCON defines to SoC private header
  ep93xx: Move crunch code to mach-ep93xx directory
  ep93xx: Make syscon access functions private to SoC
  ep93xx: Configure GPIO ports in core code
  ep93xx: Move peripheral defines to local SoC header
  ep93xx: Convert the watchdog driver into a platform device.
  ep93xx: Use ioremap for backlight driver
  ep93xx: Move GPIO defines to gpio-ep93xx.h
  ep93xx: Don't use system controller defines in audio drivers
  ep93xx: Move PHYS_BASE defines to local SoC header file
  ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver
  ARM: EXYNOS: add clock registers for exynos4x12-cpufreq
  PM / devfreq: update the name of EXYNOS clock registers that were omitted
  PM / devfreq: update the name of EXYNOS clock register
  ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock
  ARM: EXYNOS: use static declaration on regarding clock
  ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs
  ARM: OMAP2+: Fix build error after merge
  ARM: S3C24XX: remove call to s3c24xx_setup_clocks
  ...
2012-03-27 16:03:32 -07:00
Wim Van Sebroeck
86a1e1896c watchdog: nowayout is bool
nowayout is actually a boolean value.
So make it bool for all watchdog device drivers.

Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2012-03-27 20:06:02 +02:00
Linus Torvalds
0d19eac120 Merge branch 'amba' of git://git.linaro.org/people/rmk/linux-arm
Pull #2 ARM updates from Russell King:
 "Further ARM AMBA primecell updates which aren't included directly in
  the previous commit.  I wanted to keep these separate as they're
  touching stuff outside arch/arm/."

* 'amba' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7362/1: AMBA: Add module_amba_driver() helper macro for amba_driver
  ARM: 7335/1: mach-u300: do away with MMC config files
  ARM: 7280/1: mmc: mmci: Cache MMCICLOCK and MMCIPOWER register
  ARM: 7309/1: realview: fix unconnected interrupts on EB11MP
  ARM: 7230/1: mmc: mmci: Fix PIO read for small SDIO packets
  ARM: 7227/1: mmc: mmci: Prepare for SDIO before setting up DMA job
  ARM: 7223/1: mmc: mmci: Fixup use of runtime PM and use autosuspend
  ARM: 7221/1: mmc: mmci: Change from using legacy suspend
  ARM: 7219/1: mmc: mmci: Change vdd_handler to a generic ios_handler
  ARM: 7218/1: mmc: mmci: Provide option to configure bus signal direction
  ARM: 7217/1: mmc: mmci: Put power register deviations in variant data
  ARM: 7216/1: mmc: mmci: Do not release spinlock in request_end
  ARM: 7215/1: mmc: mmci: Increase max_segs from 16 to 128
2012-03-23 17:36:29 -07:00
Linus Torvalds
be53bfdb80 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm main changes from Dave Airlie:
 "This is the main drm pull request, I'm probably going to send two more
  smaller ones, will explain below.

  This contains a patch that is also in the fbdev tree, but it should be
  the same patch, it added an API for hot unplugging framebuffer
  devices, and I need that API for a new driver.

  It also contains some changes to the i2c tree which Jean has acked,
  and one change to moorestown platform stuff in x86.

  Highlights:
   - new drivers: UDL driver for USB displaylink devices, kms only,
     should support correct hotplug operations.
   - core: i2c speedups + better hotplug support, EDID overriding via
     firmware interface - allows user to load a firmware for a broken
     monitor/kvm from userspace, it even has documentation for it.
   - exynos: new HDMI audio + hdmi 1.4 + virtual output driver
   - gma500: code cleanup
   - radeon: cleanups, CS optimisations, streamout support and pageflip
     fix
   - nouveau: NVD9 displayport support + more reclocking work
   - i915: re-enabling GMBUS, finish gpu patch (might help hibernation
     who knows), missed irq fixes, stencil tiling fixes, interlaced
     support, aliasesd PPGTT support for SNB/IVB, swizzling for SNB/IVB,
     semaphore fixes

  As well as the usual bunch of cleanups and fixes all over the place.

  I've got two things I'd like to merge a bit later:

   a) AMD support for all their new radeonhd 7000 series GPU and APUs.
      AMD dropped this a bit late due to insane internal review
      processes, (please AMD just follow Intel and let open source guys
      ship stuff early) however I don't want to penalise people who own
      this hardware (since its been on sale for 3-4 months and GPU hw
      doesn't exactly have a lifetime in years) and consign them to
      using closed drivers for longer than necessary.  The changes are
      well contained and just plug into the driver new gpu functionality
      so they should be fairly regression proof.  I just want to give
      them a bit of a run on the hw AMD kindly sent me.

   b) drm prime/dma-buf interface code.  This is just infrastructure
      code to expose the dma-buf stuff to drm drivers and to userspace.
      I'm not planning on pushing any driver support in this cycle
      (except maybe exynos), but I'd like to get the infrastructure code
      in so for the next cycle I can start getting the driver support
      into the individual drivers.  We have started driver support for
      i915, nouveau and udl along with I think exynos and omap in
      staging.  However this code relies on the dma-buf tree being
      pulled into your tree first since it needs the latest interfaces
      from that tree.  I'll push to get that tree sent asap.

  (oh and any warnings you see in i915 are gcc's fault from what anyone
  can see)."

Fix up trivial conflicts in arch/x86/platform/mrst/mrst.c due to the new
msic_thermal_platform_data() thermal function being added next to the
tc35876x_platform_data() i2c device function..

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (326 commits)
  drm/i915: use DDC_ADDR instead of hard-coding it
  drm/radeon: use DDC_ADDR instead of hard-coding it
  drm: remove unneeded redefinition of DDC_ADDR
  drm/exynos: added virtual display driver.
  drm: allow loading an EDID as firmware to override broken monitor
  drm/exynos: enable hdmi audio feature
  drm/exynos: add default pixel format for plane
  drm/exynos: cleanup exynos_hdmi.h
  drm/exynos: add is_local member in exynos_drm_subdrv struct
  drm/exynos: add subdrv open/close functions
  drm/exynos: remove module of exynos drm subdrv
  drm/exynos: release pending pageflip events when closed
  drm/exynos: added new funtion to get/put dma address.
  drm/exynos: update gem and buffer framework.
  drm/exynos: added mode_fixup feature and code clean.
  drm/exynos: add HDMI version 1.4 support
  drm/exynos: remove exynos_mixer.h
  gma500: Fix mmap frambuffer
  drm/radeon: Drop radeon_gem_object_(un)pin.
  drm/radeon: Restrict offset for legacy display engine.
  ...
2012-03-22 13:08:22 -07:00
Linus Torvalds
5375871d43 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc merge from Benjamin Herrenschmidt:
 "Here's the powerpc batch for this merge window.  It is going to be a
  bit more nasty than usual as in touching things outside of
  arch/powerpc mostly due to the big iSeriesectomy :-) We finally got
  rid of the bugger (legacy iSeries support) which was a PITA to
  maintain and that nobody really used anymore.

  Here are some of the highlights:

   - Legacy iSeries is gone.  Thanks Stephen ! There's still some bits
     and pieces remaining if you do a grep -ir series arch/powerpc but
     they are harmless and will be removed in the next few weeks
     hopefully.

   - The 'fadump' functionality (Firmware Assisted Dump) replaces the
     previous (equivalent) "pHyp assisted dump"...  it's a rewrite of a
     mechanism to get the hypervisor to do crash dumps on pSeries, the
     new implementation hopefully being much more reliable.  Thanks
     Mahesh Salgaonkar.

   - The "EEH" code (pSeries PCI error handling & recovery) got a big
     spring cleaning, motivated by the need to be able to implement a
     new backend for it on top of some new different type of firwmare.

     The work isn't complete yet, but a good chunk of the cleanups is
     there.  Note that this adds a field to struct device_node which is
     not very nice and which Grant objects to.  I will have a patch soon
     that moves that to a powerpc private data structure (hopefully
     before rc1) and we'll improve things further later on (hopefully
     getting rid of the need for that pointer completely).  Thanks Gavin
     Shan.

   - I dug into our exception & interrupt handling code to improve the
     way we do lazy interrupt handling (and make it work properly with
     "edge" triggered interrupt sources), and while at it found & fixed
     a wagon of issues in those areas, including adding support for page
     fault retry & fatal signals on page faults.

   - Your usual random batch of small fixes & updates, including a bunch
     of new embedded boards, both Freescale and APM based ones, etc..."

I fixed up some conflicts with the generalized irq-domain changes from
Grant Likely, hopefully correctly.

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (141 commits)
  powerpc/ps3: Do not adjust the wrapper load address
  powerpc: Remove the rest of the legacy iSeries include files
  powerpc: Remove the remaining CONFIG_PPC_ISERIES pieces
  init: Remove CONFIG_PPC_ISERIES
  powerpc: Remove FW_FEATURE ISERIES from arch code
  tty/hvc_vio: FW_FEATURE_ISERIES is no longer selectable
  powerpc/spufs: Fix double unlocks
  powerpc/5200: convert mpc5200 to use of_platform_populate()
  powerpc/mpc5200: add options to mpc5200_defconfig
  powerpc/mpc52xx: add a4m072 board support
  powerpc/mpc5200: update mpc5200_defconfig to fit for charon board
  Documentation/powerpc/mpc52xx.txt: Checkpatch cleanup
  powerpc/44x: Add additional device support for APM821xx SoC and Bluestone board
  powerpc/44x: Add support PCI-E for APM821xx SoC and Bluestone board
  MAINTAINERS: Update PowerPC 4xx tree
  powerpc/44x: The bug fixed support for APM821xx SoC and Bluestone board
  powerpc: document the FSL MPIC message register binding
  powerpc: add support for MPIC message register API
  powerpc/fsl: Added aliased MSIIR register address to MSI node in dts
  powerpc/85xx: mpc8548cds - add 36-bit dts
  ...
2012-03-21 18:55:10 -07:00
Linus Torvalds
3556485f15 Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates for 3.4 from James Morris:
 "The main addition here is the new Yama security module from Kees Cook,
  which was discussed at the Linux Security Summit last year.  Its
  purpose is to collect miscellaneous DAC security enhancements in one
  place.  This also marks a departure in policy for LSM modules, which
  were previously limited to being standalone access control systems.
  Chromium OS is using Yama, and I believe there are plans for Ubuntu,
  at least.

  This patchset also includes maintenance updates for AppArmor, TOMOYO
  and others."

Fix trivial conflict in <net/sock.h> due to the jumo_label->static_key
rename.

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (38 commits)
  AppArmor: Fix location of const qualifier on generated string tables
  TOMOYO: Return error if fails to delete a domain
  AppArmor: add const qualifiers to string arrays
  AppArmor: Add ability to load extended policy
  TOMOYO: Return appropriate value to poll().
  AppArmor: Move path failure information into aa_get_name and rename
  AppArmor: Update dfa matching routines.
  AppArmor: Minor cleanup of d_namespace_path to consolidate error handling
  AppArmor: Retrieve the dentry_path for error reporting when path lookup fails
  AppArmor: Add const qualifiers to generated string tables
  AppArmor: Fix oops in policy unpack auditing
  AppArmor: Fix error returned when a path lookup is disconnected
  KEYS: testing wrong bit for KEY_FLAG_REVOKED
  TOMOYO: Fix mount flags checking order.
  security: fix ima kconfig warning
  AppArmor: Fix the error case for chroot relative path name lookup
  AppArmor: fix mapping of META_READ to audit and quiet flags
  AppArmor: Fix underflow in xindex calculation
  AppArmor: Fix dropping of allowed operations that are force audited
  AppArmor: Add mising end of structure test to caps unpacking
  ...
2012-03-21 13:25:04 -07:00
Linus Torvalds
b8716614a7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 "* sha512 bug fixes (already in your tree).
  * SHA224/SHA384 AEAD support in caam.
  * X86-64 optimised version of Camellia.
  * Tegra AES support.
  * Bulk algorithm registration interface to make driver registration easier.
  * padata race fixes.
  * Misc fixes."

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (31 commits)
  padata: Fix race on sequence number wrap
  padata: Fix race in the serialization path
  crypto: camellia - add assembler implementation for x86_64
  crypto: camellia - rename camellia.c to camellia_generic.c
  crypto: camellia - fix checkpatch warnings
  crypto: camellia - rename camellia module to camellia_generic
  crypto: tcrypt - add more camellia tests
  crypto: testmgr - add more camellia test vectors
  crypto: camellia - simplify key setup and CAMELLIA_ROUNDSM macro
  crypto: twofish-x86_64/i586 - set alignmask to zero
  crypto: blowfish-x86_64 - set alignmask to zero
  crypto: serpent-sse2 - combine ablk_*_init functions
  crypto: blowfish-x86_64 - use crypto_[un]register_algs
  crypto: twofish-x86_64-3way - use crypto_[un]register_algs
  crypto: serpent-sse2 - use crypto_[un]register_algs
  crypto: serpent-sse2 - remove dead code from serpent_sse2_glue.c::serpent_sse2_init()
  crypto: twofish-x86 - Remove dead code from twofish_glue_3way.c::init()
  crypto: In crypto_add_alg(), 'exact' wants to be initialized to 0
  crypto: caam - fix gcc 4.6 warning
  crypto: Add bulk algorithm registration interface
  ...
2012-03-21 13:20:43 -07:00
Linus Torvalds
69a7aebcf0 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "It's indeed trivial -- mostly documentation updates and a bunch of
  typo fixes from Masanari.

  There are also several linux/version.h include removals from Jesper."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (101 commits)
  kcore: fix spelling in read_kcore() comment
  constify struct pci_dev * in obvious cases
  Revert "char: Fix typo in viotape.c"
  init: fix wording error in mm_init comment
  usb: gadget: Kconfig: fix typo for 'different'
  Revert "power, max8998: Include linux/module.h just once in drivers/power/max8998_charger.c"
  writeback: fix fn name in writeback_inodes_sb_nr_if_idle() comment header
  writeback: fix typo in the writeback_control comment
  Documentation: Fix multiple typo in Documentation
  tpm_tis: fix tis_lock with respect to RCU
  Revert "media: Fix typo in mixer_drv.c and hdmi_drv.c"
  Doc: Update numastat.txt
  qla4xxx: Add missing spaces to error messages
  compiler.h: Fix typo
  security: struct security_operations kerneldoc fix
  Documentation: broken URL in libata.tmpl
  Documentation: broken URL in filesystems.tmpl
  mtd: simplify return logic in do_map_probe()
  mm: fix comment typo of truncate_inode_pages_range
  power: bq27x00: Fix typos in comment
  ...
2012-03-20 21:12:50 -07:00
Linus Torvalds
843ec558f9 tty and serial merge for 3.4-rc1
Here's the big serial and tty merge for the 3.4-rc1 tree.
 
 There's loads of fixes and reworks in here from Jiri for the tty layer,
 and a number of patches from Alan to help try to wrestle the vt layer
 into a sane model.
 
 Other than that, lots of driver updates and fixes, and other minor
 stuff, all detailed in the shortlog.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY/serial patches from Greg KH:
 "tty and serial merge for 3.4-rc1

  Here's the big serial and tty merge for the 3.4-rc1 tree.

  There's loads of fixes and reworks in here from Jiri for the tty
  layer, and a number of patches from Alan to help try to wrestle the vt
  layer into a sane model.

  Other than that, lots of driver updates and fixes, and other minor
  stuff, all detailed in the shortlog."

* tag 'tty-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (132 commits)
  serial: pxa: add clk_prepare/clk_unprepare calls
  TTY: Wrong unicode value copied in con_set_unimap()
  serial: PL011: clear pending interrupts
  serial: bfin-uart: Don't access tty circular buffer in TX DMA interrupt after it is reset.
  vt: NULL dereference in vt_do_kdsk_ioctl()
  tty: serial: vt8500: fix annotations for probe/remove
  serial: remove back and forth conversions in serial_out_sync
  serial: use serial_port_in/out vs serial_in/out in 8250
  serial: introduce generic port in/out helpers
  serial: reduce number of indirections in 8250 code
  serial: delete useless void casts in 8250.c
  serial: make 8250's serial_in shareable to other drivers.
  serial: delete last unused traces of pausing I/O in 8250
  pch_uart: Add module parameter descriptions
  pch_uart: Use existing default_baud in setup_console
  pch_uart: Add user_uartclk parameter
  pch_uart: Add Fish River Island II uart clock quirks
  pch_uart: Use uartclk instead of base_baud
  mpc5200b/uart: select more tolerant uart prescaler on low baudrates
  tty: moxa: fix bit test in moxa_start()
  ...
2012-03-20 11:24:39 -07:00
Linus Torvalds
9f9d2760da char and misc driver merge for 3.4-rc1
Not much here, just a few minor fixes and some conversions to the
 module_*_driver() functions, making the codebase smaller.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char and misc patches for 3.4-rc1 from Greg KH:
 "Not much here, just a few minor fixes and some conversions to the
  module_*_driver() functions, making the codebase smaller."

* tag 'char-misc-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc: bmp085: Use unsigned long to store jiffies
  char/ramoops: included linux/err.h twice
  misc: bmp085: Handle jiffies overflow correctly
  misc: fsa9480: Remove obsolete cleanup for clientdata
  char: Fix typo in tlclk.c
  char: Fix typo in viotape.c
  cs5535-mfgpt: don't call __init function from __devinit
  MISC: convert drivers/misc/* to use module_spi_driver()
  MISC: convert drivers/misc/* to use module_i2c_driver()
  MISC: convert drivers/misc/* to use module_platform_driver()
2012-03-20 11:15:18 -07:00
viresh kumar
9e5ed094c8 ARM: 7362/1: AMBA: Add module_amba_driver() helper macro for amba_driver
For simple modules that contain a single amba_driver without any
additional setup code then ends up being a block of duplicated
boilerplate. This patch adds a new macro, module_amba_driver(),
which replaces the module_init()/module_exit() registrations with
template functions.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-03-16 23:32:35 +00:00
Jiri Kosina
adfe39cd91 Revert "char: Fix typo in viotape.c"
This reverts commit a7ccf37752.

It changes deprecated code that is being removed in powerpc tree.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-03-16 12:08:51 +01:00
Stephen Rothwell
ba7a4822b4 powerpc: Remove some of the legacy iSeries specific device drivers
These drivers are specific to the PowerPC legacy iSeries platform and
their Kconfig is specified in arch/powerpc.  Legacy iSeries is being
removed, so these drivers can no longer be selected.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2012-03-16 09:28:05 +11:00
Jiri Slaby
410235fd4d TTY: remove unneeded tty->index checks
Checking if tty->index is in bounds is not needed. The tty has the
index set in the initial open. This is done in get_tty_driver. And it
can be only in interval <0,driver->num).

So remove the tests which check exactly this interval. Some are
left untouched as they check against the current backing device count.
(Leaving apart that the check is racy in most of the cases.)

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08 11:42:21 -08:00
Jiri Slaby
2f16669d32 TTY: remove re-assignments to tty_driver members
All num, magic and owner are set by alloc_tty_driver. No need to
re-set them on each allocation site.

pti driver sets something different to what it passes to
alloc_tty_driver. It is not a bug, since we don't use the lines
parameter in any way. Anyway this is fixed, and now we do the right
thing.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08 11:37:58 -08:00
Greg Kroah-Hartman
0fb8379dab tty: delete briq_panel.c driver
This driver is broken, as reported by Jiri, and to quote Ben:
	Just remove the driver, I don't think anybody cares.
so I'm doing just that here.

Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Josh Boyer <jwboyer@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-08 10:45:55 -08:00
Jiri Kosina
4e70daaf05 tpm_tis: fix tis_lock with respect to RCU
cleanup_tis() -> tpm_remove_hardware() -> syncrhonize_rcu() is being
called in an atomic context (tis_lock spinlock held), which is not
allowed. Convert tis_lock to mutex.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Tested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Acked-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
2012-03-05 14:06:59 +01:00
Danny Kukawka
5aa4d20dc3 char/ramoops: included linux/err.h twice
drivers/char/ramoops.c included 'linux/err.h' twice, remove
the duplicate.

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-24 14:16:43 -08:00
Tony Lindgren
2c799cef4d ARM: OMAP: Remove plat/io.h by splitting it into mach/io.h and mach/hardware.h
This is needed to minimize io.h so the SoC specific io.h
for ARMs can removed.

Note that minimal driver changes for DSS and RNG are needed to
include cpu.h for SoC detection macros.

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-24 10:34:35 -08:00
H. Peter Anvin
9dd4ccaaf8 compat: Handle COMPAT_USE_64BIT_TIME in the lp driver
Enable the lp driver to be used with a compat ABI with 64-bit time.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <greg@kroah.com>
2012-02-20 12:48:47 -08:00
Tim Gardner
3ab1aff894 TPM: Zero buffer whole after copying to userspace
Commit 3321c07ae5 correctly clears the TPM
buffer if the user specified read length is >= the TPM buffer length. However,
if the user specified read length is < the TPM buffer length, then part of the
TPM buffer is left uncleared.

Reported-by: Seth Forshee <seth.forshee@canonical.com>
Cc: Debora Velarde <debora@linux.vnet.ibm.com>
Cc: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Cc: Marcel Selhorst <m.selhorst@sirrix.com>
Cc: tpmdd-devel@lists.sourceforge.net
Cc: stable@vger.kernel.org
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
2012-02-14 16:43:38 -02:00
Stefan Berger
968de8e24d tpm_tis: Clean up after module_param cleanup
Commit 90ab5ee941 changed the
itpm module parameter from int to bool. Some other changes
need to be done to clean up after this change.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
2012-02-14 16:43:18 -02:00
Stefan Berger
4e401fb028 tpm_tis: Only probe iTPMs
Detect iTPMs through the vendor ID on the hardware interface and only
probe the device if the manufacturer is found to be Intel. This
obsoletes a previously added delay necessary for some TPMs but not iTPMs.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
2012-02-14 16:43:08 -02:00
Daniel Vetter
9edd576d89 Merge remote-tracking branch 'airlied/drm-fixes' into drm-intel-next-queued
Back-merge from drm-fixes into drm-intel-next to sort out two things:

- interlaced support: -fixes contains a bugfix to correctly clear
  interlaced configuration bits in case the bios sets up an interlaced
  mode and we want to set up the progressive mode (current kernels
  don't support interlaced). The actual feature work to support
  interlaced depends upon (and conflicts with) this bugfix.

- forcewake voodoo to workaround missed IRQ issues: -fixes only enabled
  this for ivybridge, but some recent bug reports indicate that we
  need this on Sandybridge, too. But in a slightly different flavour
  and with other fixes and reworks on top. Additionally there are some
  forcewake cleanup patches heading to -next that would conflict with
  currrent -fixes.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-10 17:14:49 +01:00
Masanari Iida
31cf913da3 char: Fix typo in tlclk.c
Correct spelling "telclk_interrup" to "telclk_interrupt" in
drivers/char/tlclk.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-09 23:09:37 +01:00
Masanari Iida
a7ccf37752 char: Fix typo in viotape.c
Correct spelling "allocat" to "allocate" in
drivers/char/viotape.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-09 23:09:36 +01:00
Daniel Vetter
428ccb21b7 agp/intel-gtt: export the gtt pagetable iomapping
We need this because ppgtt page directory entries need to be in the
global gtt pagetable.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-09 21:24:18 +01:00
Daniel Vetter
50a4c4a94d agp/intel-gtt: export the scratch page dma address
To implement a PPGTT for drm/i915 that fully aliases the GTT, we also
need to properly alias the scratch page.

Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-02-09 21:23:18 +01:00
Masanari Iida
838d51bfa3 char: Fix typo in tlclk.c
Correct spelling "telclk_interrup" to "telclk_interrupt" in
drivers/char/tlclk.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-09 08:49:51 -08:00
Masanari Iida
5fb15db437 char: Fix typo in viotape.c
Correct spelling "allocat" to "allocate" in
drivers/char/viotape.c

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-09 08:49:50 -08:00
James Morris
9e3ff38647 Merge branch 'next-queue' into next 2012-02-09 17:02:34 +11:00
Jiri Kosina
972c5ae961 Merge branch 'master' into for-next
Sync with Linus' tree to be able to apply patch to a newer
code (namely drivers/gpu/drm/gma500/psb_intel_lvds.c)
2012-02-03 23:13:05 +01:00
Michael Witten
5196d20305 drivers/char: comment fix: CMOS RTC update code is now in kernel/time/ntp.c
This commit updates some comments to reflect the fact that code
for periodically updating the CMOS RTC was moved to:

  kernel/time/ntp.c

probably by this commit:

  commit 82644459c5
  Author: Thomas Gleixner <tglx@linutronix.de>
  Date:   Sat Jul 21 04:37:37 2007 -0700

      NTP: move the cmos update code into ntp.c

      i386 and sparc64 have the identical code to update the cmos clock.  Move it
      into kernel/time/ntp.c as there are other architectures coming along with the
      same requirements.

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2012-02-03 22:50:56 +01:00
Michal Kubecek
590dfe2f3b agp: fix scratch page cleanup
In error cleanup of agp_backend_initialize() and in agp_backend_cleanup(),
agp_destroy_page() is passed virtual address of the scratch page. This
leads to a kernel warning if the initialization fails (or upon regular
cleanup) as pointer to struct page should be passed instead.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-01-26 18:36:48 +00:00
Fabio Estevam
f4a0391dfa ima: fix Kconfig dependencies
Fix the following build warning:
warning: (IMA) selects TCG_TPM which has unmet direct dependencies
(HAS_IOMEM && EXPERIMENTAL)

Suggested-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
2012-01-19 21:30:09 -05:00
Stefan Berger
be405411f7 tpm: fix (ACPI S3) suspend regression
This patch fixes an (ACPI S3) suspend regression introduced in commit
68d6e6713f ("tpm: Introduce function to poll for result of self test")
and occurring with an Infineon TPM and tpm_tis and tpm_infineon drivers
active.

The suspend problem occurred if the TPM was disabled and/or deactivated
and therefore the TPM_PCRRead checking the result of the (asynchronous)
self test returned an error code which then caused the tpm_tis driver to
become inactive and this then seemed to have negatively influenced the
suspend support by the tpm_infineon driver...  Besides that the tpm_tis
drive may stay active even if the TPM is disabled and/or deactivated.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-18 15:50:17 -08:00
Ben Widawsky
6b2d590540 agp/intel: Add pci id for hostbridge from has/qemu
This is needed to run the simulator.

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: added a comment in case people wonder what it's for.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-01-17 11:06:09 +01:00
Linus Torvalds
c2bc3a316a Merge branch 'x86/rdrand' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86/rdrand' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  random: Adjust the number of loops when initializing
  random: Use arch-specific RNG to initialize the entropy store
2012-01-16 18:23:09 -08:00
H. Peter Anvin
2dac8e54f9 random: Adjust the number of loops when initializing
When we are initializing using arch_get_random_long() we only need to
loop enough times to touch all the bytes in the buffer; using
poolwords for that does twice the number of operations necessary on a
64-bit machine, since in the random number generator code "word" means
32 bits.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Link: http://lkml.kernel.org/r/1324589281-31931-1-git-send-email-tytso@mit.edu
2012-01-16 11:33:49 -08:00
Theodore Ts'o
3e88bdff1c random: Use arch-specific RNG to initialize the entropy store
If there is an architecture-specific random number generator (such as
RDRAND for Intel architectures), use it to initialize /dev/random's
entropy stores.  Even in the worst case, if RDRAND is something like
AES(NSA_KEY, counter++), it won't hurt, and it will definitely help
against any other adversaries.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Link: http://lkml.kernel.org/r/1324589281-31931-1-git-send-email-tytso@mit.edu
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2012-01-16 11:18:21 -08:00
Linus Torvalds
0a80939b3e Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1
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Merge tag 'for-linus' of git://github.com/rustyrussell/linux

Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999  BFCB D920 0E6C D1AD B8F1

* tag 'for-linus' of git://github.com/rustyrussell/linux:
  module_param: check that bool parameters really are bool.
  intelfbdrv.c: bailearly is an int module_param
  paride/pcd: fix bool verbose module parameter.
  module_param: make bool parameters really bool (drivers & misc)
  module_param: make bool parameters really bool (arch)
  module_param: make bool parameters really bool (core code)
  kernel/async: remove redundant declaration.
  printk: fix unnecessary module_param_name.
  lirc_parallel: fix module parameter description.
  module_param: avoid bool abuse, add bint for special cases.
  module_param: check type correctness for module_param_array
  modpost: use linker section to generate table.
  modpost: use a table rather than a giant if/else statement.
  modules: sysfs - export: taint, coresize, initsize
  kernel/params: replace DEBUGP with pr_debug
  module: replace DEBUGP with pr_debug
  module: struct module_ref should contains long fields
  module: Fix performance regression on modules with large symbol tables
  module: Add comments describing how the "strmap" logic works

Fix up conflicts in scripts/mod/file2alias.c due to the new linker-
generated table approach to adding __mod_*_device_table entries.  The
ARM sa11x0 mcp bus needed to be converted to that too.
2012-01-14 12:32:16 -08:00
Julia Lawall
d0b03c5fe4 hwrng: tx4939 - use devm_request_and_ioremap
Reimplement a call to devm_request_mem_region followed by a call to ioremap
or ioremap_nocache by a call to devm_request_and_ioremap.

The semantic patch that makes this transformation is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@nm@
expression myname;
identifier i;
@@

struct platform_driver i = { .driver = { .name = myname } };

@@
expression dev,res,size;
expression nm.myname;
@@

-if (!devm_request_mem_region(dev, res->start, size,
-                              \(res->name\|dev_name(dev)\|myname\))) {
-   ...
-   return ...;
-}
... when != res->start
(
-devm_ioremap(dev,res->start,size)
+devm_request_and_ioremap(dev,res)
|
-devm_ioremap_nocache(dev,res->start,size)
+devm_request_and_ioremap(dev,res)
)
... when any
    when != res->start
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2012-01-13 16:38:40 +11:00
Linus Torvalds
099469502f Merge branch 'akpm' (aka "Andrew's patch-bomb, take two")
Andrew explains:

 - various misc stuff

 - Most of the rest of MM: memcg, threaded hugepages, others.

 - cpumask

 - kexec

 - kdump

 - some direct-io performance tweaking

 - radix-tree optimisations

 - new selftests code

   A note on this: often people will develop a new userspace-visible
   feature and will develop userspace code to exercise/test that
   feature.  Then they merge the patch and the selftest code dies.
   Sometimes we paste it into the changelog.  Sometimes the code gets
   thrown into Documentation/(!).

   This saddens me.  So this patch creates a bare-bones framework which
   will henceforth allow me to ask people to include their test apps in
   the kernel tree so we can keep them alive.  Then when people enhance
   or fix the feature, I can ask them to update the test app too.

   The infrastruture is terribly trivial at present - let's see how it
   evolves.

 - checkpoint/restart feature work.

   A note on this: this is a project by various mad Russians to perform
   c/r mainly from userspace, with various oddball helper code added
   into the kernel where the need is demonstrated.

   So rather than some large central lump of code, what we have is
   little bits and pieces popping up in various places which either
   expose something new or which permit something which is normally
   kernel-private to be modified.

   The overall project is an ongoing thing.  I've judged that the size
   and scope of the thing means that we're more likely to be successful
   with it if we integrate the support into mainline piecemeal rather
   than allowing it all to develop out-of-tree.

   However I'm less confident than the developers that it will all
   eventually work! So what I'm asking them to do is to wrap each piece
   of new code inside CONFIG_CHECKPOINT_RESTORE.  So if it all
   eventually comes to tears and the project as a whole fails, it should
   be a simple matter to go through and delete all trace of it.

This lot pretty much wraps up the -rc1 merge for me.

* akpm: (96 commits)
  unlzo: fix input buffer free
  ramoops: update parameters only after successful init
  ramoops: fix use of rounddown_pow_of_two()
  c/r: prctl: add PR_SET_MM codes to set up mm_struct entries
  c/r: procfs: add start_data, end_data, start_brk members to /proc/$pid/stat v4
  c/r: introduce CHECKPOINT_RESTORE symbol
  selftests: new x86 breakpoints selftest
  selftests: new very basic kernel selftests directory
  radix_tree: take radix_tree_path off stack
  radix_tree: remove radix_tree_indirect_to_ptr()
  dio: optimize cache misses in the submission path
  vfs: cache request_queue in struct block_device
  fs/direct-io.c: calculate fs_count correctly in get_more_blocks()
  drivers/parport/parport_pc.c: fix warnings
  panic: don't print redundant backtraces on oops
  sysctl: add the kernel.ns_last_pid control
  kdump: add udev events for memory online/offline
  include/linux/crash_dump.h needs elf.h
  kdump: fix crash_kexec()/smp_send_stop() race in panic()
  kdump: crashk_res init check for /sys/kernel/kexec_crash_size
  ...
2012-01-12 20:42:54 -08:00
Kees Cook
c755201eb5 ramoops: update parameters only after successful init
If a platform device exists on the system, but ramoops fails to attach to
it, the module parameters are overridden before ramoops can fall back and
try to use passed module parameters.  Move update to end of init routine.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Marco Stornelli <marco.stornelli@gmail.com>
Cc: Sergiu Iordache <sergiu@chromium.org>
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:13 -08:00
Marco Stornelli
fdb5950754 ramoops: fix use of rounddown_pow_of_two()
The return value of rounddown_pow_of_two wasn't evaluated, so the
operation was a no-op.

Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:13 -08:00
WANG Cong
a3dd332305 kexec: remove KMSG_DUMP_KEXEC
KMSG_DUMP_KEXEC is useless because we already save kernel messages inside
/proc/vmcore, and it is unsafe to allow modules to do other stuffs in a
crash dump scenario.

[akpm@linux-foundation.org: fix powerpc build]
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Reported-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Jarod Wilson <jarod@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-01-12 20:13:11 -08:00
Rusty Russell
90ab5ee941 module_param: make bool parameters really bool (drivers & misc)
module_param(bool) used to counter-intuitively take an int.  In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.

It's time to remove the int/unsigned int option.  For this version
it'll simply give a warning, but it'll break next kernel version.

Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-13 09:32:20 +10:30
Linus Torvalds
bcf8a3dfcb Autogenerated GPG tag for Rusty D1ADB8F1: 15EE 8D6C AB0E 7F0C F999 BFCB D920 0E6C D1AD B8F1
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Merge tag 'to-linus' of git://github.com/rustyrussell/linux

* tag 'to-linus' of git://github.com/rustyrussell/linux: (24 commits)
  lguest: Make sure interrupt is allocated ok by lguest_setup_irq
  lguest: move the lguest tool to the tools directory
  lguest: switch segment-voodoo-numbers to readable symbols
  virtio: balloon: Add freeze, restore handlers to support S4
  virtio: balloon: Move vq initialization into separate function
  virtio: net: Add freeze, restore handlers to support S4
  virtio: net: Move vq and vq buf removal into separate function
  virtio: net: Move vq initialization into separate function
  virtio: blk: Add freeze, restore handlers to support S4
  virtio: blk: Move vq initialization to separate function
  virtio: console: Disable callbacks for virtqueues at start of S4 freeze
  virtio: console: Add freeze and restore handlers to support S4
  virtio: console: Move vq and vq buf removal into separate functions
  virtio: pci: add PM notification handlers for restore, freeze, thaw, poweroff
  virtio: pci: switch to new PM API
  virtio_blk: fix config handler race
  virtio: add debugging if driver doesn't kick.
  virtio: expose added descriptors immediately.
  virtio: avoid modulus operation.
  virtio: support unlocked queue kick
  ...
2012-01-12 12:37:27 -08:00
Amit Shah
c743d09dbd virtio: console: Disable callbacks for virtqueues at start of S4 freeze
To ensure we don't receive any more interrupts from the host after we
enter the freeze function, disable all vq interrupts.

There wasn't any problem seen due to this in tests, but applying this
patch makes the freeze case more robust.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-12 15:44:45 +10:30
Amit Shah
2b8f41d846 virtio: console: Add freeze and restore handlers to support S4
Remove all vqs and associated buffers in the freeze callback which
prepares us to go into hibernation state.  On restore, re-create all the
vqs and populate the input vqs with buffers to get to the pre-hibernate
state.

Note: Any outstanding unconsumed buffers are discarded; which means
there's a possibility of data loss in case the host or the guest didn't
consume any data already present in the vqs.  This can be addressed in a
later patch series, perhaps in virtio common code.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-12 15:44:45 +10:30
Amit Shah
a0e2dbfc22 virtio: console: Move vq and vq buf removal into separate functions
This common code will be shared with the PM freeze function.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-01-12 15:44:45 +10:30