Commit Graph

77774 Commits

Author SHA1 Message Date
Li Zhong 41d82bdb40 powerpc: Fix MAX_STACK_TRACE_ENTRIES too low warning for ppc32
This patch fixes MAX_STACK_TRACE_ENTRIES too low warning for ppc32,
which is similar to commit 12660b17.

Reported-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-01-29 10:10:22 +11:00
David Woodhouse 99f857db88 x86, build: Dynamically find entry points in compressed startup code
We have historically hard-coded entry points in head.S just so it's easy
to build the executable/bzImage headers with references to them.

Unfortunately, this leads to boot loaders abusing these "known" addresses
even when they are *explicitly* told that they "should look at the ELF
header to find this address, as it may change in the future". And even
when the address in question *has* actually been changed in the past,
without fanfare or thought to compatibility.

Thus we have bootloaders doing stunningly broken things like jumping
to offset 0x200 in the kernel startup code in 64-bit mode, *hoping*
that startup_64 is still there (it has moved at least once
before). And hoping that it's actually a 64-bit kernel despite the
fact that we don't give them any indication of that fact.

This patch should hopefully remove the temptation to abuse internal
addresses in future, where sternly worded comments have not sufficed.
Instead of having hard-coded addresses and saying "please don't abuse
these", we actually pull the addresses out of the ELF payload into
zoffset.h, and make build.c shove them back into the right places in
the bzImage header.

Rather than including zoffset.h into build.c and thus having to rebuild
the tool for every kernel build, we parse it instead. The parsing code
is small and simple.

This patch doesn't actually move any of the interesting entry points, so
any offending bootloader will still continue to "work" after this patch
is applied. For some version of "work" which includes jumping into the
compressed payload and crashing, if the bzImage it's given is a 32-bit
kernel. No change there then.

[ hpa: some of the issues in the description are addressed or
  retconned by the 2.12 boot protocol.  This patch has been edited to
  only remove fixed addresses that were *not* thus retconned. ]

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Link: http://lkml.kernel.org/r/1358513837.2397.247.camel@shinybook.infradead.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Matt Fleming <matt.fleming@intel.com>
2013-01-27 20:19:37 -08:00
David Woodhouse b607e21267 x86, efi: Fix PCI ROM handing in EFI boot stub, in 32-bit mode
The 'Attributes' argument to pci->Attributes() function is 64-bit. So
when invoking in 32-bit mode it takes two registers, not just one.

This fixes memory corruption when booting via the 32-bit EFI boot stub.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/1358513837.2397.247.camel@shinybook.infradead.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Matt Fleming <matt.fleming@intel.com>
2013-01-27 20:19:37 -08:00
David Woodhouse f791620fa7 x86, efi: Fix 32-bit EFI handover protocol entry point
If the bootloader calls the EFI handover entry point as a standard function
call, then it'll have a return address on the stack. We need to pop that
before calling efi_main(), or the arguments will all be out of position on
the stack.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/1358513837.2397.247.camel@shinybook.infradead.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Matt Fleming <matt.fleming@intel.com>
2013-01-27 20:19:37 -08:00
David Woodhouse 70a479cbe8 x86, efi: Fix display detection in EFI boot stub
When booting under OVMF we have precisely one GOP device, and it
implements the ConOut protocol.

We break out of the loop when we look at it... and then promptly abort
because 'first_gop' never gets set. We should set first_gop *before*
breaking out of the loop. Yes, it doesn't really mean "first" any more,
but that doesn't matter. It's only a flag to indicate that a suitable
GOP was found.

In fact, we'd do just as well to initialise 'width' to zero in this
function, then just check *that* instead of first_gop. But I'll do the
minimal fix for now (and for stable@).

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/1358513837.2397.247.camel@shinybook.infradead.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Matt Fleming <matt.fleming@intel.com>
2013-01-27 20:19:37 -08:00
H. Peter Anvin 09c205afde x86, boot: Define the 2.12 bzImage boot protocol
Define the 2.12 bzImage boot protocol: add xloadflags and additional
fields to allow the command line, initramfs and struct boot_params to
live above the 4 GiB mark.

The xloadflags now communicates if this is a 64-bit kernel with the
legacy 64-bit entry point and which of the EFI handover entry points
are supported.

Avoid adding new read flags to loadflags because of claimed
bootloaders testing the whole byte for == 1 to determine bzImageness
at least until the issue can be researched further.

This is based on patches by Yinghai Lu and David Woodhouse.

Originally-by: Yinghai Lu <yinghai@kernel.org>
Originally-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1359058816-7615-26-git-send-email-yinghai@kernel.org
Cc: Rob Landley <rob@landley.net>
Cc: Gokul Caushik <caushik1@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Cc: Joe Millenbach <jmillenbach@gmail.com>
2013-01-27 15:56:37 -08:00
Cong Ding 65315d4889 x86/boot: Fix minor fd leakage in tools/relocs.c
The opened file should be closed.

Signed-off-by: Cong Ding <dinggnu@gmail.com>
Cc: Kusanagi Kouichi <slash@ac.auone-net.jp>
Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Matt Fleming <matt.fleming@intel.com>
Link: http://lkml.kernel.org/r/1358183628-27784-1-git-send-email-dinggnu@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-01-27 10:24:28 -08:00
Matt Fleming 712ba9e9af x86, efi: Set runtime_version to the EFI spec revision
efi.runtime_version is erroneously being set to the value of the
vendor's firmware revision instead of that of the implemented EFI
specification. We can't deduce which EFI functions are available based
on the revision of the vendor's firmware since the version scheme is
likely to be unique to each vendor.

What we really need to know is the revision of the implemented EFI
specification, which is available in the EFI System Table header.

Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: stable@vger.kernel.org # 3.7.x
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-01-25 12:00:16 +00:00
Jan Beulich bc754790f9 x86, efi: fix 32-bit warnings in setup_efi_pci()
Fix four similar build warnings on 32-bit (casts between different
size pointers and integers).

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Stefan Hasko <hasko.stevo@gmail.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-01-25 10:22:53 +00:00
Linus Torvalds d93816a63c Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixlet from Marcelo Tosatti.

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: PPC: Emulate dcbf
2013-01-24 19:14:22 -08:00
Linus Torvalds 01acd3efd7 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "A number of fixes:

  Patrik found a problem with preempt counting in the VFP assembly
  functions which can cause the preempt count to be upset.

  Nicolas fixed a problem with the parsing of the DT when it straddles a
  1MB boundary.

  Subhash Jadavani reported a problem with sparsemem and our highmem
  support for cache maintanence for DMA areas, and TI found a bug in
  their strongly ordered memory mapping type.

  Also, three fixes by way of Will Deacon's tree from Dave Martin for
  instruction compatibility and Marc Zyngier to fix hypervisor boot mode
  issues."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: 7629/1: mm: Fix missing XN flag for for MT_MEMORY_SO
  ARM: DMA: Fix struct page iterator in dma_cache_maint() to work with sparsemem
  ARM: 7628/1: head.S: map one extra section for the ATAG/DTB area
  ARM: 7627/1: Predicate preempt logic on PREEMP_COUNT not PREEMPT alone
  ARM: virt: simplify __hyp_stub_install epilog
  ARM: virt: boot secondary CPUs through the right entry point
  ARM: virt: Avoid bx instruction for compatibility with <=ARMv4
2013-01-24 12:44:57 -08:00
Linus Torvalds 1496ec13a1 ARM: arm-soc: Fixes for 3.8-rc, take 2
Here's a long-pending fixes pull request for arm-soc (I didn't send one
 in the -rc4 cycle).
 
 The larger deltas are from:
 - A fixup of error paths in the mvsdio driver
 - Header file move for a driver that hadn't been properly converted to
   multiplatform on i.MX, which was causing build failures when included
 - Device tree updates for at91 dealing mostly with their new
   pinctrl setup merged in 3.8 and mistakes in those initial configs
 
 The rest are the normal mix of small fixes all over the place; sunxi,
 omap, imx, mvebu, etc, etc.
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Merge tag 'fixes-for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "Here's a long-pending fixes pull request for arm-soc (I didn't send
  one in the -rc4 cycle).

  The larger deltas are from:

   - A fixup of error paths in the mvsdio driver

   - Header file move for a driver that hadn't been properly converted
     to multiplatform on i.MX, which was causing build failures when
     included

   - Device tree updates for at91 dealing mostly with their new pinctrl
     setup merged in 3.8 and mistakes in those initial configs

  The rest are the normal mix of small fixes all over the place; sunxi,
  omap, imx, mvebu, etc, etc."

* tag 'fixes-for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits)
  mfd: vexpress-sysreg: Don't skip initialization on probe
  ARM: vexpress: Enable A7 cores in V2P-CA15_A7's Device Tree
  ARM: vexpress: extend the MPIDR range used for pen release check
  ARM: at91/dts: correct comment in at91sam9x5.dtsi for mii
  ARM: at91/at91_dt_defconfig: add at91sam9n12 SoC to DT defconfig
  ARM: at91/at91_dt_defconfig: remove memory specification to cmdline
  ARM: at91/dts: add macb mii pinctrl config for kizbox
  ARM: at91: rm9200: remake the BGA as default version
  ARM: at91: fix gpios on i2c-gpio for RM9200 DT
  ARM: at91/at91sam9x5 DTS: add SCK USART pins
  ARM: at91/at91sam9x5 DTS: correct wrong PIO BANK values on u(s)arts
  ARM: at91/at91-pinctrl documentation: fix typo and add some details
  ARM: kirkwood: fix missing #interrupt-cells property
  mmc: mvsdio: use devm_ API to simplify/correct error paths.
  clk: mvebu/clk-cpu.c: fix memory leakage
  ARM: OMAP2+: omap4-panda: add UART2 muxing for WiLink shared transport
  ARM: OMAP2+: DT node Timer iteration fix
  ARM: OMAP2+: Fix section warning for omap_init_ocp2scp()
  ARM: OMAP2+: fix build break for omapdrm
  ARM: OMAP2: Fix missing omap2xxx_clkt_vps_late_init function calls
  ...
2013-01-24 12:42:50 -08:00
Alan Cox c903f0456b x86/msr: Add capabilities check
At the moment the MSR driver only relies upon file system
checks. This means that anything as root with any capability set
can write to MSRs. Historically that wasn't very interesting but
on modern processors the MSRs are such that writing to them
provides several ways to execute arbitary code in kernel space.
Sample code and documentation on doing this is circulating and
MSR attacks are used on Windows 64bit rootkits already.

In the Linux case you still need to be able to open the device
file so the impact is fairly limited and reduces the security of
some capability and security model based systems down towards
that of a generic "root owns the box" setup.

Therefore they should require CAP_SYS_RAWIO to prevent an
elevation of capabilities. The impact of this is fairly minimal
on most setups because they don't have heavy use of
capabilities. Those using SELinux, SMACK or AppArmor rules might
want to consider if their rulesets on the MSR driver could be
tighter.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Horses <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-01-24 17:37:51 +01:00
Maarten Lankhorst 73b664ceb5 x86/dma-debug: Bump PREALLOC_DMA_DEBUG_ENTRIES
I ran out of free entries when I had CONFIG_DMA_API_DEBUG
enabled. Some other archs seem to default to 65536, so increase
this limit for x86 too.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Link: http://lkml.kernel.org/r/50A612AA.7040206@canonical.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
----
2013-01-24 17:34:18 +01:00
Olof Johansson 3836414f45 Merge branch 'vexpress/fixes' of git://git.linaro.org/people/pawelmoll/linux into fixes
From Pawel Moll:
- makes the V2P-CA15_A7 (a.k.a. TC2) work with 3.8 kernels
- improves vexpress-sysreg.c behaviour on arm64 platforms

* 'vexpress/fixes' of git://git.linaro.org/people/pawelmoll/linux:
  mfd: vexpress-sysreg: Don't skip initialization on probe
  ARM: vexpress: Enable A7 cores in V2P-CA15_A7's Device Tree
  ARM: vexpress: extend the MPIDR range used for pen release check
2013-01-24 08:12:24 -08:00
Olof Johansson 60fd8e35e3 Here are fixes for AT91 that are mainly related to device tree.
One RM9200 setup option is the only C code change.
 Some documentation changes can clarify the pinctrl use.
 Then, some defconfig modifications are allowing the affected platforms
 to boot.
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Merge tag 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixes

From Nicolas Ferre:
Here are fixes for AT91 that are mainly related to device tree.
One RM9200 setup option is the only C code change.
Some documentation changes can clarify the pinctrl use.
Then, some defconfig modifications are allowing the affected platforms
to boot.

* tag 'at91-fixes' of git://github.com/at91linux/linux-at91:
  ARM: at91/dts: correct comment in at91sam9x5.dtsi for mii
  ARM: at91/at91_dt_defconfig: add at91sam9n12 SoC to DT defconfig
  ARM: at91/at91_dt_defconfig: remove memory specification to cmdline
  ARM: at91/dts: add macb mii pinctrl config for kizbox
  ARM: at91: rm9200: remake the BGA as default version
  ARM: at91: fix gpios on i2c-gpio for RM9200 DT
  ARM: at91/at91sam9x5 DTS: add SCK USART pins
  ARM: at91/at91sam9x5 DTS: correct wrong PIO BANK values on u(s)arts
  ARM: at91/at91-pinctrl documentation: fix typo and add some details
2013-01-24 07:49:49 -08:00
Randy Dunlap ed8e47fefc x86/olpc: Fix olpc-xo1-sci.c build errors
Fix build errors when CONFIG_INPUT=m.  This is not pretty, but
all of the OLPC kconfig options are bool instead of tristate.

  arch/x86/built-in.o: In function `send_lid_state':
    olpc-xo1-sci.c:(.text+0x1d323): undefined reference to `input_event'
    olpc-xo1-sci.c:(.text+0x1d338): undefined reference to `input_event'
  ...

In the long run, fixing this driver kconfig to be tristate
instead of bool would be a very good change.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Andres Salomon <dilinger@queued.net>
Cc: Chris Ball <cjb@laptop.org>
Cc: Jon Nettleton <jon.nettleton@gmail.com>
Cc: Daniel Drake <dsd@laptop.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-01-24 16:00:23 +01:00
Alex Shi 57c4f43043 arch/x86/platform/uv: Fix incorrect tlb flush all issue
The flush tlb optimization code has logical issue on UV
platform.  It doesn't flush the full range at all, since it
simply ignores its 'end' parameter (and hence also the "all"
indicator) in uv_flush_tlb_others() function.

Cliff's notes:

 | I tested the patch on a UV.  It has the effect of either
 | clearing 1 or all TLBs in a cpu.  I added some debugging to
 | test for the cases when clearing all TLBs is overkill, and in
 | practice it happens very seldom.

Reported-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Alex Shi <alex.shi@intel.com>
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Tested-by: Cliff Wickman <cpw@sgi.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-01-24 15:58:54 +01:00
Steven J. Hill 6829aeae47 MIPS: DSP: Fix DSP mask for registers.
The DSP bit mask for the RDDSP and WRDSP instructions was wrong.

[ralf@linux-mips.org: The mask field of the RDDSP and WRDSP instructions
is 10 bits long.  DSP_MASK had all these fields which according to the
architecture specification may result in UNPREDICTABLE operation.]

Signed-off-by: Steven J. Hill <sjhill@mips.com>
Cc: linux-mips@linux-mips.org
Patchwork: http://patchwork.linux-mips.org/patch/4683/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-24 13:20:09 +01:00
Pawel Moll ab838bc9c2 ARM: vexpress: Enable A7 cores in V2P-CA15_A7's Device Tree
As the kernel is able to cope with multiple clusters,
uncomment the A7 cores in the Device Tree for V2P-CA15_A7
tile, making all 5 cores available to the user.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2013-01-24 12:19:23 +00:00
Lorenzo Pieralisi 1585defb4c ARM: vexpress: extend the MPIDR range used for pen release check
In ARM multi-cluster systems the MPIDR affinity level 0 cannot be used as a
single cpu identifier, affinity levels 1 and 2 must be taken into account as
well.
This patch extends the MPIDR usage to affinity levels 1 and 2 in versatile
secondary cores start up code in order to compare the passed pen_release
value with the full-blown affinity mask.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
2013-01-24 12:19:23 +00:00
Jan Beulich 444723dccc x86-64: Fix unwind annotations in recent NMI changes
While in one case a plain annotation is necessary, in the other
case the stack adjustment can simply be folded into the
immediately preceding RESTORE_ALL, thus getting the correct
annotation for free.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Alexander van Heukelum <heukelum@mailshack.com>
Link: http://lkml.kernel.org/r/51010C9302000078000B9045@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-01-24 10:56:32 +01:00
Olof Johansson f6be19c8bc mvebu fixes for v3.8-rc5
- fix memory leak in mvebu/clk-cpu.c
  - use devm_ to correct/simplify error paths in mvsdio
  - add missing #interrupt-cells property in kirkwood
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Merge tag 'mvebu_fixes_for_v3.8-rc5' of git://git.infradead.org/users/jcooper/linux into fixes

From Jason Cooper:

mvebu fixes for v3.8-rc5
 - fix memory leak in mvebu/clk-cpu.c
 - use devm_ to correct/simplify error paths in mvsdio
 - add missing #interrupt-cells property in kirkwood

* tag 'mvebu_fixes_for_v3.8-rc5' of git://git.infradead.org/users/jcooper/linux:
  ARM: kirkwood: fix missing #interrupt-cells property
  mmc: mvsdio: use devm_ API to simplify/correct error paths.
  clk: mvebu/clk-cpu.c: fix memory leakage
2013-01-23 20:30:52 -08:00
Linus Torvalds ff7532ca2c more USB fixes for 3.8-rc4
Here are some more USB fixes for the 3.8-rc4 tree.
 
 Some gadget driver fixes, and finally resolved the ehci-mxc driver build issues
 (it's just some code moving around and being deleted).
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull more USB fixes from Greg Kroah-Hartman:
 "Here are some more USB fixes for the 3.8-rc4 tree.

  Some gadget driver fixes, and finally resolved the ehci-mxc driver
  build issues (it's just some code moving around and being deleted)."

* tag 'usb-3.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: EHCI: fix build error in ehci-mxc
  USB: EHCI: add a name for the platform-private field
  USB: EHCI: fix incorrect configuration test
  USB: EHCI: Move definition of EHCI_STATS to ehci.h
  USB: UHCI: fix IRQ race during initialization
  usb: gadget: FunctionFS: Fix missing braces in parse_opts
  usb: dwc3: gadget: fix ep->maxburst for ep0
  ARM: i.MX clock: Change the connection-id for fsl-usb2-udc
  usb: gadget: fsl_mxc_udc: replace MX35_IO_ADDRESS to ioremap
  usb: gadget: fsl-mxc-udc: replace cpu_is_xxx() with platform_device_id
  usb: musb: cppi_dma: drop '__init' annotation
2013-01-23 20:11:35 -08:00
Linus Torvalds 248152b602 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k fixes from Geert Uytterhoeven:
 "The asm-generic changeset has been ack'ed by Arnd."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Wire up finit_module
  asm-generic/dma-mapping-broken.h: Provide dma_alloc_attrs()/dma_free_attrs()
  m68k: Provide dma_alloc_attrs()/dma_free_attrs()
2013-01-23 13:31:15 -08:00
Linus Torvalds c1b84144c2 - ELF coredump fix (more registers dumped than what user space expects)
- SUBARCH name generation (s/aarch64/arm64/)
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 fixes from Catalin Marinas:
 - ELF coredump fix (more registers dumped than what user space expects)
 - SUBARCH name generation (s/aarch64/arm64/)

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: makefile: fix uname munging when setting ARCH on native machine
  arm64: elf: fix core dumping to match what glibc expects
2013-01-23 13:28:17 -08:00
Gregory CLEMENT de27686b77 arm: mvebu: i2c come back in defconfig
When the patch "arm: mvebu: Use dw-apb-uart instead of ns16650 as UART
driver" was applied to a git tree and became the commit b24212fbfb
it wrongly removed the i2c support. This patch reintroduce it.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-23 15:05:11 +00:00
Gerlando Falauto 830f8b9105 arm: plat-orion: fix printing of "MPP config unavailable on this hardware"
refactored printing of the kernel warning:

"orion_mpp_conf: requested MPP%u config unavailable on this hardware\n"

which is not to be printed in case of variant_mask = 0 (unknown variant).
This check should be performed using a logical AND (&&) as opposed
to a bitwise AND (&).

Otherwise, test would fail (and message would not be printed) if
variant_mask != 1

Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Olof Johansson <olof@lixom.net>
Cc: Nicolas Pitre <nico@linaro.org>
Cc: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-23 14:37:52 +00:00
Jean-Francois Moine fd2704e82d Dove: activate GPIO interrupts in DT
In a DT, the interrupts of an interrupt-controller are not usable when
#interrupt-cells is missing.

This patch activates the interrupts of the GPIOs 0 and 1 for the Marvell
Dove SoC.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-23 12:32:57 +00:00
David Daney 86ea9c51b9 MIPS: Fix build failure by adding definition of pfn_pmd().
With CONFIG_TRANSPARENT_HUGEPAGE=y and CONFIG_HUGETLBFS=y we get the
following build failure:

  CC      mm/huge_memory.o
mm/huge_memory.c: In function 'set_huge_zero_page':
mm/huge_memory.c:780:2: error: implicit declaration of function 'pfn_pmd' [-Werror=implicit-function-declaration]
mm/huge_memory.c:780:8: error: incompatible types when assigning to type 'pmd_t' from type 'int'

Add a definition of pfn_pmd() for 64-bit kernels (the only place huge
pages are currently supported).

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4813/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-23 11:56:44 +01:00
Douglas Gilbert 8461c2f6fd ARM: at91/dts: correct comment in at91sam9x5.dtsi for mii
Concerning pinctrl_macb0_rmii_mii, values were okay, but not comments.

Signed-off-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-01-23 10:40:51 +01:00
Nicolas Ferre 581d629974 ARM: at91/at91_dt_defconfig: add at91sam9n12 SoC to DT defconfig
Reported-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-01-23 10:39:58 +01:00
Nicolas Ferre 2e06e92c75 ARM: at91/at91_dt_defconfig: remove memory specification to cmdline
No need for this cmdline option as we are using DT.
Moreover this defconfig is targeted to multiple SoC/boards: this option
was nonsense.

Reported-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-01-23 10:39:57 +01:00
Boris BREZILLON b45c998ea7 ARM: at91/dts: add macb mii pinctrl config for kizbox
This patch overrides default macb pinctrl config defined in
at91sam9260.dtsi (pinctrl_macb_rmii) with kizbox board config
(pinctrl_macb_rmii + pinctrl_macb_rmii_mii_alt).

Signed-off-by: Boris BREZILLON <linux-arm@overkiz.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-01-23 10:34:38 +01:00
Jean-Christophe PLAGNIOL-VILLARD 36224d0fe0 ARM: at91: rm9200: remake the BGA as default version
Make BGA as the default version as we are supposed to just have
to specify when we use the PQFP version.

Issue was existing since commit:
3e90772 (ARM: at91: fix at91rm9200 soc subtype handling).

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: stable <stable@vger.kernel.org> [v3.3]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-01-23 10:31:14 +01:00
Joachim Eastwood 334c9e8d6d ARM: at91: fix gpios on i2c-gpio for RM9200 DT
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-01-23 10:31:07 +01:00
Richard Genoud 1bab02ec1b ARM: at91/at91sam9x5 DTS: add SCK USART pins
The SCK pins where missing in usarts pinctrl.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-01-23 10:31:00 +01:00
Richard Genoud c89cec3a40 ARM: at91/at91sam9x5 DTS: correct wrong PIO BANK values on u(s)arts
The PIN_BANK 3 is for PDxx pins, not PCxx pins.
And PIN_BANK 1 is for PBxx, not PIN_BANK 0.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-01-23 10:30:54 +01:00
Sebastian Hesselbarth 09d75bc7d2 ARM: kirkwood: fix missing #interrupt-cells property
The gpio controller on kirkwood can provide interrupts but is missing
the #interrupt-cells property. This patch just adds it to both gpio
controllers.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-01-23 01:10:48 +00:00
Linus Torvalds ed06ef318a perf/urgent fixes:
. revert 20b279 - require exclude_guest to use PEBS - kernel side,
   now older binaries will continue working for things like cycles:pp
   without needing to pass extra modifiers, from David Ahern.
 
 . Fix building from 'make perf-*-src-pkg' tarballs, broken by UAPI, from
   Sebastian Andrzej Siewior
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

 . revert 20b279 - require exclude_guest to use PEBS - kernel side, now
   older binaries will continue working for things like cycles:pp
   without needing to pass extra modifiers, from David Ahern.

 . Fix building from 'make perf-*-src-pkg' tarballs, broken by UAPI,
   from Sebastian Andrzej Siewior

[ Pulling directly, Ingo would normally pull but has been unresponsive ]

* tag 'perf-urgent-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf tools: Fix building from 'make perf-*-src-pkg' tarballs
  perf x86: revert 20b279 - require exclude_guest to use PEBS - kernel side
2013-01-22 14:32:07 -08:00
Linus Torvalds 343391b1d1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc fixes from Helge Deller:
 "Improve the stability of the linux kernel on the parisc architecture"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: sigaltstack doesn't round ss.ss_sp as required
  parisc: improve ptrace support for gdb single-step
  parisc: don't claim cpu irqs more than once
  parisc: avoid undefined shift in cnv_float.h
2013-01-22 14:30:35 -08:00
Olof Johansson 51edce0cce Minimal omap fixes for the -rc series:
- A build fix for recently merged omap DRM changes
 
 - Regression fixes from the common clock framework conversion
   for omap4 audio and omap2 reboot
 
 - Regression fix for pandaboard WLAN control UART muxing caused by
   u-boot only muxing essential pins nowadays
 
 - Timer iteration fix for CONFIG_OF_DYNAMIC
 
 - A section mismatch fix for ocp2scp init
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Merge tag 'omap-for-v3.8-rc4/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

From Tony Lindgren:
Minimal omap fixes for the -rc series:

- A build fix for recently merged omap DRM changes

- Regression fixes from the common clock framework conversion
  for omap4 audio and omap2 reboot

- Regression fix for pandaboard WLAN control UART muxing caused by
  u-boot only muxing essential pins nowadays

- Timer iteration fix for CONFIG_OF_DYNAMIC

- A section mismatch fix for ocp2scp init

* tag 'omap-for-v3.8-rc4/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (306 commits)
  ARM: OMAP2+: omap4-panda: add UART2 muxing for WiLink shared transport
  ARM: OMAP2+: DT node Timer iteration fix
  ARM: OMAP2+: Fix section warning for omap_init_ocp2scp()
  ARM: OMAP2+: fix build break for omapdrm
  ARM: OMAP2: Fix missing omap2xxx_clkt_vps_late_init function calls
  ARM: OMAP4: hwmod_data: Correct IDLEMODE for McPDM
  ARM: OMAP4: clock data: Lock ABE DPLL on all revisions
  + Linux 3.8-rc4

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-22 11:20:29 -08:00
Oleg Nesterov 9899d11f65 ptrace: ensure arch_ptrace/ptrace_request can never race with SIGKILL
putreg() assumes that the tracee is not running and pt_regs_access() can
safely play with its stack.  However a killed tracee can return from
ptrace_stop() to the low-level asm code and do RESTORE_REST, this means
that debugger can actually read/modify the kernel stack until the tracee
does SAVE_REST again.

set_task_blockstep() can race with SIGKILL too and in some sense this
race is even worse, the very fact the tracee can be woken up breaks the
logic.

As Linus suggested we can clear TASK_WAKEKILL around the arch_ptrace()
call, this ensures that nobody can ever wakeup the tracee while the
debugger looks at it.  Not only this fixes the mentioned problems, we
can do some cleanups/simplifications in arch_ptrace() paths.

Probably ptrace_unfreeze_traced() needs more callers, for example it
makes sense to make the tracee killable for oom-killer before
access_process_vm().

While at it, add the comment into may_ptrace_stop() to explain why
ptrace_stop() still can't rely on SIGKILL and signal_pending_state().

Reported-by: Salman Qazi <sqazi@google.com>
Reported-by: Suleiman Souhlal <suleiman@google.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-22 10:08:00 -08:00
Will Deacon 9cf2b72b25 arm64: elf: fix core dumping to match what glibc expects
The kernel's internal definition of ELF_NGREG uses struct pt_regs, which
means that we disagree with userspace on the size of coredumps since
glibc correctly uses the user-visible struct user_pt_regs.

This patch fixes our ELF_NGREG definition to use struct user_pt_regs
and introduces our own ELF_CORE_COPY_REGS to convert between the user
and kernel structure definitions.

Cc: <stable@vger.kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-01-22 17:50:59 +00:00
Ralf Baechle 757be67f56 MIPS: Octeon: Fix warning.
Cong Ding <dinggnu@gmail.com> reports correctly that the variable dummy
is being used without initialization.  That said, I can't reproduce this
warning with GCC 4.7.1.  However, since the variable dummy servces no
real purpose, I'm going for a different fix.  This fix
includes https://patchwork.linux-mips.org/patch/4801/ plus Geert's
suggestion to use ACCESS_ONCE().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-22 18:07:46 +01:00
Geert Uytterhoeven 4ea494b528 MIPS: delay.c: Check BITS_PER_LONG instead of __SIZEOF_LONG__
When building a 32-bit kernel for RBTX4927 with gcc version 4.1.2 20061115
(prerelease) (Ubuntu 4.1.1-21), I get:

arch/mips/lib/delay.c:24:5: warning: "__SIZEOF_LONG__" is not defined

As a consequence, __delay() always uses the 64-bit "dsubu" instruction.

Replace the check for "__SIZEOF_LONG__ == 4" by "BITS_PER_LONG == 32" to
fix this.

Introduced by commit 5210edcd52 [MIPS: Make
__{,n,u}delay declarations match definitions and generic delay.h"]

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Patchwork: https://patchwork.linux-mips.org/patch/4678/
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-22 16:53:48 +01:00
Gerald Schaefer be3286507d s390/thp: implement pmdp_set_wrprotect()
On s390, an architecture-specific implementation of the function
pmdp_set_wrprotect() is missing and the generic version is currently
being used. The generic version does not flush the tlb as it would be
needed on s390 when modifying an active pmd, which can lead to subtle
tlb errors on s390 when using transparent hugepages.

This patch adds an s390-specific implementation of pmdp_set_wrprotect()
including the missing tlb flush.

Cc: stable@vger.kernel.org
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-01-22 13:32:16 +01:00
Ralf Baechle f051e3a933 MIPS: PNX833x: Fix comment.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-22 12:52:22 +01:00
Olof Johansson b2555b877b ARM i.MX fixes for -rc.
This contains a single compilation fix for the CODA driver.
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Merge tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes

From Sascha Hauer:

ARM i.MX fixes for -rc.

This contains a single compilation fix for the CODA driver.

* tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6:
  [media] coda: Fix build due to iram.h rename
2013-01-22 00:22:12 -08:00
Luciano Coelho 7662a9c60f ARM: OMAP2+: omap4-panda: add UART2 muxing for WiLink shared transport
Add the UART2 muxing data to the board file (this used to be,
erroneously, done in the bootloader).

Cc: stable <stable@vger.kernel.org> [3.7]
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-01-21 10:39:53 -08:00
Pantelis Antoniou 034bf091b7 ARM: OMAP2+: DT node Timer iteration fix
The iterator correctly handles of_node_put() calls.
Remove it before continue'ing the loop.
Without this patch you get the following with
CONFIG_OF_DYNAMIC set:

ERROR: Bad of_node_put() on /ocp/timer@44e31000!
[<c001329c>] (unwind_backtrace+0x0/0xe0) from [<c03dd8f0>] (of_node_release+0x2c/0xa0)!
[<c03dd8f0>] (of_node_release+0x2c/0xa0) from [<c03ddea0>] (of_find_matching_node_and_match+0x78/0x90)!
[<c03ddea0>] (of_find_matching_node_and_match+0x78/0x90) from [<c06d349c>] (omap_get_timer_dt+0x78/0x90)!
[<c06d349c>] (omap_get_timer_dt+0x78/0x90) from [<c06d3664>] (omap_dm_timer_init_one.clone.2+0x34/0x2bc)!
[<c06d3664>] (omap_dm_timer_init_one.clone.2+0x34/0x2bc) from [<c06d3a2c>] (omap2_gptimer_clocksource_init.clone.4+0x24/0xa8)!
[<c06d3a2c>] (omap2_gptimer_clocksource_init.clone.4+0x24/0xa8) from [<c06cca58>] (time_init+0x20/0x30)!
[<c06cca58>] (time_init+0x20/0x30) from [<c06c9690>] (start_kernel+0x1a8/0x2fc)!

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Acked-by: Jon Hunter <jon-hunter@ti.com>
[tony@atomide.com: updated description per Jon]
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-01-21 10:39:53 -08:00
Tony Lindgren e407ee099a ARM: OMAP2+: Fix section warning for omap_init_ocp2scp()
Otherwise we will get:

WARNING: vmlinux.o(.text+0x1d4f0): Section mismatch in reference from the
function omap_init_ocp2scp() to the function .init.text:omap_device_build()
The function omap_init_ocp2scp() references
the function __init omap_device_build().
This is often because omap_init_ocp2scp lacks a __init
annotation or the annotation of omap_device_build is wrong.

Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-01-21 10:39:52 -08:00
Rob Clark 81f3ae0671 ARM: OMAP2+: fix build break for omapdrm
Fixes compile break with 3.8-rc4.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-01-21 10:34:08 -08:00
Oleg Nesterov edea0d03ee ia64: kill thread_matches(), unexport ptrace_check_attach()
The ia64 function "thread_matches()" has no users since commit
e868a55c2a ("[IA64] remove find_thread_for_addr()").  Remove it.

This allows us to make ptrace_check_attach() static to kernel/ptrace.c,
which is good since we'll need to change the semantics of it and fix up
all the callers.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-01-20 12:26:05 -08:00
H. Peter Anvin 021ef050fc x86-32: Start out cr0 clean, disable paging before modifying cr3/4
Patch

  5a5a51db78 x86-32: Start out eflags and cr4 clean

... made x86-32 match x86-64 in that we initialize %eflags and %cr4
from scratch.  This broke OLPC XO-1.5, because the XO enters the
kernel with paging enabled, which the kernel doesn't expect.

Since we no longer support 386 (the source of most of the variability
in %cr0 configuration), we can simply match further x86-64 and
initialize %cr0 to a fixed value -- the one variable part remaining in
%cr0 is for FPU control, but all that is handled later on in
initialization; in particular, configuring %cr0 as if the FPU is
present until proven otherwise is correct and necessary for the probe
to work.

To deal with the XO case sanely, explicitly disable paging in %cr0
before we muck with %cr3, %cr4 or EFER -- those operations are
inherently unsafe with paging enabled.

NOTE: There is still a lot of 386-related junk in head_32.S which we
can and should get rid of, however, this is intended as a minimal fix
whereas the cleanup can be deferred to the next merge window.

Reported-by: Andres Salomon <dilinger@queued.net>
Tested-by: Daniel Drake <dsd@laptop.org>
Link: http://lkml.kernel.org/r/50FA0661.2060400@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-01-19 11:01:22 -08:00
Russell King 210b1847b3 Merge branch 'for-rmk/virt/hyp-boot/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into fixes 2013-01-19 15:27:30 +00:00
Santosh Shilimkar 93d5bf073a ARM: 7629/1: mm: Fix missing XN flag for for MT_MEMORY_SO
Commit 8fb54284ba {ARM: mm: Add strongly ordered descriptor support}
added XN flag at section level but missed it at PTE level.

Fix it by adding the L_PTE_XN to MT_MEMORY_SO PTE descriptor.

Reported-by: Richard Woodruff <r-woodruff2@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-01-19 11:41:25 +00:00
Russell King 15653371c6 ARM: DMA: Fix struct page iterator in dma_cache_maint() to work with sparsemem
Subhash Jadavani reported this partial backtrace:
  Now consider this call stack from MMC block driver (this is on the ARMv7
  based board):

  [<c001b50c>] (v7_dma_inv_range+0x30/0x48) from [<c0017b8c>] (dma_cache_maint_page+0x1c4/0x24c)
  [<c0017b8c>] (dma_cache_maint_page+0x1c4/0x24c) from [<c0017c28>] (___dma_page_cpu_to_dev+0x14/0x1c)
  [<c0017c28>] (___dma_page_cpu_to_dev+0x14/0x1c) from [<c0017ff8>] (dma_map_sg+0x3c/0x114)

This is caused by incrementing the struct page pointer, and running off
the end of the sparsemem page array.  Fix this by incrementing by pfn
instead, and convert the pfn to a struct page.

Cc: <stable@vger.kernel.org>
Suggested-by: James Bottomley <JBottomley@Parallels.com>
Tested-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-01-19 11:05:57 +00:00
Jon Hunter bdcc612752 ARM: OMAP2: Fix missing omap2xxx_clkt_vps_late_init function calls
During the migration to the common clock framework, calls to the
functions omap2xxx_clkt_vps_late_init() were not preserved for
OMAP2420 and OMAP2430. This causes the variables "sys_ck_rate" and
"curr_prcm_set" to be uninitialised on boot. On reboot, this causes the
following error message to be displayed because the appropriate MPU
clock frequency (derived from sys_ck_rate) cannot be found.

"Could not set MPU rate to 4294MHz"

Fix this by adding back calls to omap2xxx_clkt_vps_late_init() in the
OMAP2420 and OMAP2430 clock initialisation code.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
[paul@pwsan.com: dropped the duplicated call to
 omap2xxx_clkt_vps_check_bootloader_rates() after consultation with Jon;
 updated patch description]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-01-18 16:48:16 -07:00
Peter Ujfalusi 12d82e4b0a ARM: OMAP4: hwmod_data: Correct IDLEMODE for McPDM
McPDM need to be configured to NO_IDLE mode when it is in used otherwise
vital clocks will be gated which results 'slow motion' audio playback.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
[paul@pwsan.com: copy patch description into hwmod data comments]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-01-18 16:48:16 -07:00
Peter Ujfalusi 981827a2b7 ARM: OMAP4: clock data: Lock ABE DPLL on all revisions
To avoid issues with audio caused by non locked ABE DPLL we should
make sure it is locked in all OMAP4 revisions.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jon Hunter <jon-hunter@ti.com>
[paul@pwsan.com: cleaned up patch description]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-01-18 16:48:15 -07:00
Linus Torvalds 5c69bed266 Fixes:
- CVE-2013-0190/XSA-40 (or stack corruption for 32-bit PV kernels)
  - Fix racy vma access spotted by Al Viro
  - Fix mmap batch ioctl potentially resulting in large O(n) page allcations.
  - Fix vcpu online/offline BUG:scheduling while atomic..
  - Fix unbound buffer scanning for more than 32 vCPUs.
  - Fix grant table being incorrectly initialized
  - Fix incorrect check in pciback
  - Allow privcmd in backend domains.
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Merge tag 'stable/for-linus-3.8-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen

Pull Xen fixes from Konrad Rzeszutek Wilk:
 - CVE-2013-0190/XSA-40 (or stack corruption for 32-bit PV kernels)
 - Fix racy vma access spotted by Al Viro
 - Fix mmap batch ioctl potentially resulting in large O(n) page allcations.
 - Fix vcpu online/offline BUG:scheduling while atomic..
 - Fix unbound buffer scanning for more than 32 vCPUs.
 - Fix grant table being incorrectly initialized
 - Fix incorrect check in pciback
 - Allow privcmd in backend domains.

Fix up whitespace conflict due to ugly merge resolution in Xen tree in
arch/arm/xen/enlighten.c

* tag 'stable/for-linus-3.8-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen: Fix stack corruption in xen_failsafe_callback for 32bit PVOPS guests.
  Revert "xen/smp: Fix CPU online/offline bug triggering a BUG: scheduling while atomic."
  xen/gntdev: remove erronous use of copy_to_user
  xen/gntdev: correctly unmap unlinked maps in mmu notifier
  xen/gntdev: fix unsafe vma access
  xen/privcmd: Fix mmap batch ioctl.
  Xen: properly bound buffer access when parsing cpu/*/availability
  xen/grant-table: correctly initialize grant table version 1
  x86/xen : Fix the wrong check in pciback
  xen/privcmd: Relax access control in privcmd_ioctl_mmap
2013-01-18 12:02:52 -08:00
Linus Torvalds b814469ad5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu arch fixes from Greg Ungerer:
 "This contains a couple of fixes, both affecting compilation of non-mmu
  m68k targets."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: fix conditional use of init_pointer_table
  m68knommu: add KMAP definitions for non-MMU definitions
2013-01-18 11:58:10 -08:00
Peter Chen 61c4b560e9 ARM: i.MX clock: Change the connection-id for fsl-usb2-udc
As we use platform_device_id for fsl-usb2-udc driver, it needs to
change clk connection-id, or the related devm_clk_get will be failed.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-18 14:08:22 +02:00
Peter Chen f0ea8834df usb: gadget: fsl-mxc-udc: replace cpu_is_xxx() with platform_device_id
As mach/hardware.h is deleted, we need to use platform_device_id to
differentiate SoCs. Besides, one cpu_is_mx35 is useless as it has
already used pdata to differentiate runtime

Meanwhile we update the platform code accordingly.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2013-01-18 14:08:20 +02:00
Nathan Zimmer b8f2c21db3 efi, x86: Pass a proper identity mapping in efi_call_phys_prelog
Update efi_call_phys_prelog to install an identity mapping of all available
memory.  This corrects a bug on very large systems with more then 512 GB in
which bios would not be able to access addresses above not in the mapping.

The result is a crash that looks much like this.

BUG: unable to handle kernel paging request at 000000effd870020
IP: [<0000000078bce331>] 0x78bce330
PGD 0
Oops: 0000 [#1] SMP
Modules linked in:
CPU 0
Pid: 0, comm: swapper/0 Tainted: G        W    3.8.0-rc1-next-20121224-medusa_ntz+ #2 Intel Corp. Stoutland Platform
RIP: 0010:[<0000000078bce331>]  [<0000000078bce331>] 0x78bce330
RSP: 0000:ffffffff81601d28  EFLAGS: 00010006
RAX: 0000000078b80e18 RBX: 0000000000000004 RCX: 0000000000000004
RDX: 0000000078bcf958 RSI: 0000000000002400 RDI: 8000000000000000
RBP: 0000000078bcf760 R08: 000000effd870000 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000000000c3 R12: 0000000000000030
R13: 000000effd870000 R14: 0000000000000000 R15: ffff88effd870000
FS:  0000000000000000(0000) GS:ffff88effe400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000effd870020 CR3: 000000000160c000 CR4: 00000000000006b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process swapper/0 (pid: 0, threadinfo ffffffff81600000, task ffffffff81614400)
Stack:
 0000000078b80d18 0000000000000004 0000000078bced7b ffff880078b81fff
 0000000000000000 0000000000000082 0000000078bce3a8 0000000000002400
 0000000060000202 0000000078b80da0 0000000078bce45d ffffffff8107cb5a
Call Trace:
 [<ffffffff8107cb5a>] ? on_each_cpu+0x77/0x83
 [<ffffffff8102f4eb>] ? change_page_attr_set_clr+0x32f/0x3ed
 [<ffffffff81035946>] ? efi_call4+0x46/0x80
 [<ffffffff816c5abb>] ? efi_enter_virtual_mode+0x1f5/0x305
 [<ffffffff816aeb24>] ? start_kernel+0x34a/0x3d2
 [<ffffffff816ae5ed>] ? repair_env_string+0x60/0x60
 [<ffffffff816ae2be>] ? x86_64_start_reservations+0xba/0xc1
 [<ffffffff816ae120>] ? early_idt_handlers+0x120/0x120
 [<ffffffff816ae419>] ? x86_64_start_kernel+0x154/0x163
Code:  Bad RIP value.
RIP  [<0000000078bce331>] 0x78bce330
 RSP <ffffffff81601d28>
CR2: 000000effd870020
---[ end trace ead828934fef5eab ]---

Cc: stable@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2013-01-18 09:43:43 +00:00
Alexander Graf d3286144c9 KVM: PPC: Emulate dcbf
Guests can trigger MMIO exits using dcbf. Since we don't emulate cache
incoherent MMIO, just do nothing and move on.

Reported-by: Ben Collins <ben.c@servergy.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Ben Collins <ben.c@servergy.com>
CC: stable@vger.kernel.org
2013-01-18 00:40:49 +01:00
Linus Torvalds 72ffaa48e1 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 patches from Martin Schwidefsky:
 "A couple of bug fixes: one of the transparent huge page primitives is
  broken, the sched_clock function overflows after 417 days, the XFS
  module has grown too large for -fpic and the new pci code has broken
  normal channel subsystem notifications."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/chsc: fix SEI usage
  s390/time: fix sched_clock() overflow
  s390: use -fPIC for module compile
  s390/mm: fix pmd_pfn() for thp
2013-01-17 08:56:30 -08:00
Ralf Baechle 9561fefc98 MIPS: Add struct p_format to union mips_instruction.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-17 15:33:00 +01:00
Olof Johansson 5046e385b4 Merge branch 'v3.8-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim:

That branch fixes build error for S3C24XX/S3C64xx. And corrects dw-mshc
properties on EXYNOS5 DT and fixes IRQ mapping on Cragganmore board.

* 'v3.8-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  ARM: S3C64XX: Fix up IRQ mapping for balblair on Cragganmore
  ARM: dts: correct the dw-mshc timing properties as per binding
  ARM: S3C64XX: Fix build error with CONFIG_S3C_DEV_FB disabled
  + Linux 3.8-rc3

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-16 19:58:58 -08:00
Dimitris Papastamos b86dc0d8c1 ARM: S3C64XX: Fix up IRQ mapping for balblair on Cragganmore
We are using S3C_EINT(4) instead of S3C_EINT(5).

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-01-16 15:49:53 -08:00
Alim Akhtar 753bd6ddf4 ARM: dts: correct the dw-mshc timing properties as per binding
As per the current exynos-dw-mshc bindings, dw-mshc-sdr-timing and
dw-mshc-ddr-timing properties are having only two cells, these properties
are wrongly set for exynos5250 based cros5250 and smdk5250 platfroms. This
patch corrects above timing propreties for above platfroms

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Doug Anderson <dianders@chromium.org>
Acked-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-01-16 15:45:52 -08:00
Tomasz Figa c0d6cfd300 ARM: S3C64XX: Fix build error with CONFIG_S3C_DEV_FB disabled
If there is no board selecting CONFIG_S3C_DEV_FB enabled, build will
fail on arch/arm/mach-s3c64xx/pm.c, where s3c_device_fb is referenced.

This patch adds ifdef guard around the code making it compile only
when CONFIG_S3C_DEV_FB is enabled.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2013-01-16 15:45:52 -08:00
Uwe Kleine-König a73b59c51a ARM: compile fix for DEBUG_LL=y && MMU=n
debug_ll_addr is only used on machines with an MMU so it can be #ifdef'ed
out safely. This fixes:

arch/arm/kernel/debug.S: Assembler messages:
arch/arm/kernel/debug.S:104: Error: too many positional arguments

The problem was introduced in e5c5f2a ARM: implement debug_ll_io_init().

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-16 14:30:06 -08:00
Andrew Cooper 9174adbee4 xen: Fix stack corruption in xen_failsafe_callback for 32bit PVOPS guests.
This fixes CVE-2013-0190 / XSA-40

There has been an error on the xen_failsafe_callback path for failed
iret, which causes the stack pointer to be wrong when entering the
iret_exc error path.  This can result in the kernel crashing.

In the classic kernel case, the relevant code looked a little like:

        popl %eax      # Error code from hypervisor
        jz 5f
        addl $16,%esp
        jmp iret_exc   # Hypervisor said iret fault
5:      addl $16,%esp
                       # Hypervisor said segment selector fault

Here, there are two identical addls on either option of a branch which
appears to have been optimised by hoisting it above the jz, and
converting it to an lea, which leaves the flags register unaffected.

In the PVOPS case, the code looks like:

        popl_cfi %eax         # Error from the hypervisor
        lea 16(%esp),%esp     # Add $16 before choosing fault path
        CFI_ADJUST_CFA_OFFSET -16
        jz 5f
        addl $16,%esp         # Incorrectly adjust %esp again
        jmp iret_exc

It is possible unprivileged userspace applications to cause this
behaviour, for example by loading an LDT code selector, then changing
the code selector to be not-present.  At this point, there is a race
condition where it is possible for the hypervisor to return back to
userspace from an interrupt, fault on its own iret, and inject a
failsafe_callback into the kernel.

This bug has been present since the introduction of Xen PVOPS support
in commit 5ead97c84 (xen: Core Xen implementation), in 2.6.23.

Signed-off-by: Frediano Ziglio <frediano.ziglio@citrix.com>
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: stable@vger.kernel.org
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-01-16 16:17:42 -05:00
Olof Johansson ad6f276173 Sunxi dt fixes for 3.8-rc's
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Merge tag 'sunxi-fixes-for-3.8-rc4' of git://github.com/mripard/linux into fixes

From Maxime Ripard:
Sunxi dt fixes for 3.8-rc's

* tag 'sunxi-fixes-for-3.8-rc4' of git://github.com/mripard/linux:
  ARM: sunxi: Use the Synosys APB UART instead of ns8250
2013-01-16 12:27:47 -08:00
Linus Torvalds 36e7a96ceb Sound fixes #2 for 3.8-rc4
Yet a few more fixes popped up in this week.
 
 The biggest change here is the addition of pinctrl support for Atmel,
 which turned out to be almost mandatory to make things working.
 
 The rest are a few fixes for M-Audio usb-audio device and a fix for
 regression of HD-audio HDMI codecs with alsactl in the recent kernel.
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Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull second round of sound fixes from Takashi Iwai:
 "Yet a few more fixes popped up in this week.

  The biggest change here is the addition of pinctrl support for Atmel,
  which turned out to be almost mandatory to make things working.

  The rest are a few fixes for M-Audio usb-audio device and a fix for
  regression of HD-audio HDMI codecs with alsactl in the recent kernel."

* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/hdmi - Work around "alsactl restore" errors
  ALSA: usb-audio: selector map for M-Audio FT C400
  ALSA: usb-audio: M-Audio FT C400 skip packet quirk
  ALSA: usb-audio: correct M-Audio C400 clock source quirk
  ALSA: usb - fix race in creation of M-Audio Fast track pro driver
  ASoC: atmel-ssc: add pinctrl selection to driver
  ARM: at91/dts: add pinctrl support for SSC peripheral
2013-01-16 11:33:52 -08:00
Linus Torvalds 56400b55c0 Merge git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull s390 KVM fix from Gleb Natapov.

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  s390/kvm: Fix BUG in include/linux/kvm_host.h:745
2013-01-16 10:17:09 -08:00
Maxime Ripard 1bea07f16d ARM: sunxi: Use the Synosys APB UART instead of ns8250
The UART controller used in the A10/A13 is the Synopsys DesignWare 8250.
The wrong use of a regular 8250 driver may lead to a oops during kernel
boot with "irq 17: nobody cared", because the apb UART as an extra
interrupt that gets raised when writing to the LCR when busy.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2013-01-16 19:13:18 +01:00
Linus Torvalds aa8b550c89 SuperH fixes for 3.8-rc4
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Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-sh

Pull SuperH fixes from Paul Mundt.

* tag 'sh-for-linus' of git://github.com/pmundt/linux-sh:
  sh: ecovec: add sample amixer settings
  sh: Fix up stack debugging build.
  sh: wire up finit_module syscall.
  sh: Fix FDPIC binary loader
  sh: clkfwk: bugfix: sh_clk_div_enable() care sh_clk_div_set_rate() if div6
  sh: define TASK_UNMAPPED_BASE as a page aligned constant
2013-01-16 10:13:04 -08:00
Linus Torvalds a6d3bd274b - Page protection fixes, including proper PAGE_NONE handling
- Timezone vdso sequence counting fix
 - Additional compat syscall wiring
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 fixes from Catalin Marinas:
 - Page protection fixes, including proper PAGE_NONE handling
 - Timezone vdso sequence counting fix
 - Additional compat syscall wiring

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: compat: add syscall table entries for new syscalls
  arm64: mm: introduce present, faulting entries for PAGE_NONE
  arm64: mm: only wrprotect clean ptes if they are present
  arm64: vdso: remove broken, redundant sequence counting for timezones
2013-01-16 09:44:40 -08:00
Linus Torvalds 2409c873be Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Peter Anvin:
 "This is mainly a workaround for a bug in Sandy Bridge graphics which
  causes corruption of certain memory pages."

* 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/Sandy Bridge: Sandy Bridge workaround depends on CONFIG_PCI
  x86/Sandy Bridge: mark arrays in __init functions as __initconst
  x86/Sandy Bridge: reserve pages when integrated graphics is present
  x86, efi: correct precedence of operators in setup_efi_pci
2013-01-16 09:11:50 -08:00
Nicolas Pitre 6f16f4998f ARM: 7628/1: head.S: map one extra section for the ATAG/DTB area
We currently use a temporary 1MB section aligned to a 1MB boundary for
mapping the provided device tree until the final page table is created.
However, if the device tree happens to cross that 1MB boundary, the end
of it remains unmapped and the kernel crashes when it attempts to access
it.  Given no restriction on the location of that DTB, it could end up
with only a few bytes mapped at the end of a section.

Solve this issue by mapping two consecutive sections.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Tomasz Figa <t.figa@samsung.com>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-01-16 16:51:13 +00:00
Stephen Boyd 568dca15aa ARM: 7627/1: Predicate preempt logic on PREEMP_COUNT not PREEMPT alone
Patrik Kluba reports that the preempt count becomes invalid due
to the preempt_enable() call being unbalanced with a
preempt_disable() call in the vfp assembly routines. This happens
because preempt_enable() and preempt_disable() update preempt
counts under PREEMPT_COUNT=y but the vfp assembly routines do so
under PREEMPT=y. In a configuration where PREEMPT=n and
DEBUG_ATOMIC_SLEEP=y, PREEMPT_COUNT=y and so the preempt_enable()
call in VFP_bounce() keeps subtracting from the preempt count
until it goes negative.

Fix this by always using PREEMPT_COUNT to decided when to update
preempt counts in the ARM assembly code.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reported-by: Patrik Kluba <pkluba@dension.com>
Tested-by: Patrik Kluba <pkluba@dension.com>
Cc: <stable@vger.kernel.org> # 2.6.30
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-01-16 16:51:10 +00:00
Ralf Baechle 0bc1c15735 MIPS: Export <asm/break.h>.
It always should have been ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-16 16:57:27 +01:00
Ralf Baechle b26d9ac76b MIPS: BCM47xx: Enable SSB prerequisite SSB_DRIVER_PCICORE.
Split of from Arend's patch.

Signed-off-by: Arend van Spriel <arend@broadcom.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: linux-mips@linux-mips.org
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: https://patchwork.linux-mips.org/patch/4759/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-16 16:29:36 +01:00
Arend van Spriel a9e985783e MIPS: BCM47xx: Select GPIOLIB for BCMA on bcm47xx platform
The Kconfig items BCM47XX_BCMA and BCM47XX_SSB selected respectively
BCMA_DRIVER_GPIO and SSB_DRIVER_GPIO. These options depend on GPIOLIB
without explicitly selecting it so it results in a warning when GPIOLIB
is not set:

scripts/kconfig/conf --oldconfig Kconfig
warning: (BCM47XX_BCMA) selects BCMA_DRIVER_GPIO ... unmet direct
	dependencies (BCMA_POSSIBLE && BCMA && GPIOLIB)
warning: (BCM47XX_SSB) selects SSB_DRIVER_GPIO ... unmet direct
	dependencies (SSB_POSSIBLE && SSB && GPIOLIB)

which subsequently results in compile errors.

Signed-off-by: Arend van Spriel <arend@broadcom.com>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/4759/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-16 16:29:30 +01:00
Cong Ding 3d2d032476 MIPS: vpe.c: Fix null pointer dereference in print arguments.
In the printk, the variable t euqals to NULL, so there is no t->index.
Use v->tc->index instead.

[ralf@linux-mips.org: Use opportunity of changing this line anyway to make
this line whitespacely correct.]

Signed-off-by: Cong Ding <dinggnu@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/4792/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-01-16 16:29:23 +01:00
Heiko Carstens ed4f20943c s390/time: fix sched_clock() overflow
Converting a 64 Bit TOD format value to nanoseconds means that the value
must be divided by 4.096. In order to achieve that we multiply with 125
and divide by 512.
When used within sched_clock() this triggers an overflow after appr.
417 days. Resulting in a sched_clock() return value that is much smaller
than previously and therefore may cause all sort of weird things in
subsystems that rely on a monotonic sched_clock() behaviour.

To fix this implement a tod_to_ns() helper function which converts TOD
values without overflow and call this function from both places that
open coded the conversion: sched_clock() and kvm_s390_handle_wait().

Cc: stable@kernel.org
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-01-16 15:57:52 +01:00
Kuninori Morimoto 035688d9c6 sh: ecovec: add sample amixer settings
FSI - DA7210 needs amixer settings to use it.
This patch adds quick setting guide

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2013-01-16 18:30:44 +09:00
Konrad Rzeszutek Wilk d55bf532d7 Revert "xen/smp: Fix CPU online/offline bug triggering a BUG: scheduling while atomic."
This reverts commit 41bd956de3.

The fix is incorrect and not appropiate for the latest kernels.
In fact it _causes_ the BUG: scheduling while atomic while
doing vCPU hotplug.

Suggested-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-01-15 22:41:27 -05:00
Konrad Rzeszutek Wilk 7bcc1ec077 Linux 3.7
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Merge tag 'v3.7' into stable/for-linus-3.8

Linux 3.7

* tag 'v3.7': (833 commits)
  Linux 3.7
  Input: matrix-keymap - provide proper module license
  Revert "revert "Revert "mm: remove __GFP_NO_KSWAPD""" and associated damage
  ipv4: ip_check_defrag must not modify skb before unsharing
  Revert "mm: avoid waking kswapd for THP allocations when compaction is deferred or contended"
  inet_diag: validate port comparison byte code to prevent unsafe reads
  inet_diag: avoid unsafe and nonsensical prefix matches in inet_diag_bc_run()
  inet_diag: validate byte code to prevent oops in inet_diag_bc_run()
  inet_diag: fix oops for IPv4 AF_INET6 TCP SYN-RECV state
  mm: vmscan: fix inappropriate zone congestion clearing
  vfs: fix O_DIRECT read past end of block device
  net: gro: fix possible panic in skb_gro_receive()
  tcp: bug fix Fast Open client retransmission
  tmpfs: fix shared mempolicy leak
  mm: vmscan: do not keep kswapd looping forever due to individual uncompactable zones
  mm: compaction: validate pfn range passed to isolate_freepages_block
  mmc: sh-mmcif: avoid oops on spurious interrupts (second try)
  Revert misapplied "mmc: sh-mmcif: avoid oops on spurious interrupts"
  mmc: sdhci-s3c: fix missing clock for gpio card-detect
  lib/Makefile: Fix oid_registry build dependency
  ...

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

Conflicts:
	arch/arm/xen/enlighten.c
	drivers/xen/Makefile

[We need to have the v3.7 base as the 'for-3.8' was based off v3.7-rc3
and there are some patches in v3.7-rc6 that we to have in our branch]
2013-01-15 15:58:25 -05:00
Olof Johansson 6960d46a88 It's the second batch of fixes for 3.8, which includes one fixing for
!CONFIG_SMP build, two patches fixing broken imxfb driver caused by
 multiplatform conversion, and a couple of pm/hotplug fixes.
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Merge tag 'imx-fixes-3.8-2' of git://git.linaro.org/people/shawnguo/linux-2.6 into fixes

From Shawn Guo:
It's the second batch of fixes for 3.8, which includes one fixing for
!CONFIG_SMP build, two patches fixing broken imxfb driver caused by
multiplatform conversion, and a couple of pm/hotplug fixes.

* tag 'imx-fixes-3.8-2' of git://git.linaro.org/people/shawnguo/linux-2.6:
  ARM: imx: correct low-power mode setting
  ARM: imx: disable cpu in .cpu_kill hook
  video: imxfb: fix imxfb_info configuration order
  ARM: imx: platform-imx-fb: modifies platform device name
  ARM: imx: fix build error with !CONFIG_SMP

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-15 10:55:50 -08:00
Will Deacon 72d0ac048f arm64: compat: add syscall table entries for new syscalls
There have been a number of new syscalls introduced to arch/arm/ since
the compat layer was implemented for arm64, so add pointers to the
relevant functions to the compat syscall table.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2013-01-15 17:15:16 +00:00
Takashi Iwai 2e4c4dbed0 ASoC: atmel: Fixes for pinctrl
Due to a series of problems with the handling of Atmel, a combination of
 making changes that make other branches instantly buggy and a general
 failure to deal with the resulting issues effectively, v3.8 Atmel audio
 currently won't work at all for DT boards without adding pinctrl
 definitions and a request for those.
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Merge tag 'asoc-atmel-pinctrl' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: atmel: Fixes for pinctrl

Due to a series of problems with the handling of Atmel, a combination of
making changes that make other branches instantly buggy and a general
failure to deal with the resulting issues effectively, v3.8 Atmel audio
currently won't work at all for DT boards without adding pinctrl
definitions and a request for those.
2013-01-15 07:51:25 +01:00
Linus Torvalds 3152ba0f86 DeviceTree fixes for 3.8
2 fixes to prevent unconditional re-compile of dts files on arm and arm64.
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Merge tag 'dt-fixes-for-3.8' of git://sources.calxeda.com/kernel/linux

Pull devicetree fixes from Rob Herring:
 "Two fixes to prevent unconditional re-compile of dts files on arm and
  arm64."

* tag 'dt-fixes-for-3.8' of git://sources.calxeda.com/kernel/linux:
  ARM: dts: prevent *.dtb from always being rebuilt
  arm64: dts: prevent *.dtb from always being rebuilt
2013-01-14 13:19:08 -08:00
Linus Torvalds 9bbcbad438 Sound fixes for 3.8-rc4
Most of commits found here are for ASoC device specific fixes,
 arizona, cs4271, wm5102, wm2200, etc, in addition to a couple of
 memory leak fixes in ASoC core.
 
 Other than that, regression fixes in HD-audio and USB-audio, and
 a fix for new Realtek codecs.
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Merge tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Most of commits found here are for ASoC device specific fixes,
  arizona, cs4271, wm5102, wm2200, etc, in addition to a couple of
  memory leak fixes in ASoC core.

  Other than that, regression fixes in HD-audio and USB-audio, and a fix
  for new Realtek codecs."

* tag 'sound-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (30 commits)
  ALSA: usb-audio: Fix NULL dereference by access to non-existing substream
  ALSA: hda - Add support of new codec ALC284
  ALSA: usb-audio: Make ebox44_table static
  ALSA: hdspm - Fix wordclock status on AES32
  Revert "ALSA: hda - Shut up pins at power-saving mode with Conexnat codecs"
  ALSA: hda - Disable runtime D3 for Intel CPT & co
  ALSA: pxa27x: fix ac97 warm reset
  ALSA: pxa27x: fix ac97 cold reset
  ASoC: wm_adsp: Ensure that block writes are from DMA aligned addresses
  ASoC: wm2000: Fix sense of speech clarity enable
  ASoC: wm5100: Remove DSP B and left justified formats
  ASoC: arizona: Remove DSP B and left justified AIF modes
  ASoC: wm2200: Remove DSP B and left justified AIF modes
  ASoC: wm5102: Improve speaker enable performance
  ASoC: core: fix the memory leak in case of remove_aux_dev()
  ASoC: core: fix the memory leak in case of device_add() failure
  ASoC: cs42l52: Catch no-match case in cs42l52_get_clk
  ASoC: lm49453: Update lm49453_reg_defs values as per LM49453 HW revision-B
  ASoC: lm49453: Fix adc, mic and sidetone volume ranges
  ASoC: arizona: Correct FLL source definitions
  ...
2013-01-14 10:56:05 -08:00
Joachim Eastwood 90cf214d6a ARM: at91: fix board-rm9200-dt after sys_timer conversion
After "ARM: delete struct sys_timer" board-rm9200-dt
fails compilation with the following error:

  CC      arch/arm/mach-at91/board-rm9200-dt.o
arch/arm/mach-at91/board-rm9200-dt.c:50:2: error: unknown field 'timer' specified in initializer
arch/arm/mach-at91/board-rm9200-dt.c:50:13: error: 'at91rm9200_timer' undeclared here (not in a function)
make[1]: *** [arch/arm/mach-at91/board-rm9200-dt.o] Error 1
make: *** [arch/arm/mach-at91] Error 2

This is a fall out from the timer conversion. Fix it by
converting board-rm9200-dt to use new timer init
function as well.

Signed-off-by: Joachim Eastwood <manabian@gmail.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-01-14 10:14:04 -08:00
Linus Torvalds 7c8284c3aa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc updates from David Miller:

 1) Add finit_module syscall entry.

 2) Remove stray __dev{init,exit} references, from Sam Ravnborg.

Fix up conflicts in the sparc PCI code due to whitespace differences in
the __dev{init,exit} removal (which also came in through Greg).

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc: remove __devinit, __devexit annotations
  sparc: Hook up finit_module syscall.
2013-01-14 08:17:22 -08:00
Shawn Guo 83ae20981a ARM: imx: correct low-power mode setting
The hardware reset value of bit CCM_CLPCR_LPM enables WAIT mode
(WAIT_UNCLOCKED) by default.  However this is undesirable because
WAIT mode should only be enabled when there is a driver managing
ARM clock gating.  Correct the initial power mode to WAIT_CLOCKED
(disable WAIT mode).  While at it, the power mode after resuming
is also set back to WAIT_CLOCKED from STOP_POWER_OFF.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-01-14 22:19:48 +08:00