linux-2.6-microblaze.git
14 years agosh: switch sh7366 to clkdev
Magnus Damm [Tue, 11 May 2010 09:35:55 +0000 (09:35 +0000)]
sh: switch sh7366 to clkdev

This patch converts the remaining sh7366 clocks
to use clkdev for lookup. The now unused name
and id from struct clk are also removed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: switch sh7343 to clkdev
Magnus Damm [Tue, 11 May 2010 09:35:45 +0000 (09:35 +0000)]
sh: switch sh7343 to clkdev

This patch converts the remaining sh7343 clocks
to use clkdev for lookup. The now unused name
and id from struct clk are also removed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: switch sh7722 to clkdev
Magnus Damm [Tue, 11 May 2010 09:35:38 +0000 (09:35 +0000)]
sh: switch sh7722 to clkdev

This patch converts the remaining sh7722 clocks
to use clkdev for lookup. The now unused name
and id from struct clk are also removed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: switch sh7723 to clkdev
Magnus Damm [Tue, 11 May 2010 09:35:27 +0000 (09:35 +0000)]
sh: switch sh7723 to clkdev

This patch converts the remaining sh7723 clocks
to use clkdev for lookup. The now unused name
and id from struct clk are also removed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: switch sh7724 to clkdev
Magnus Damm [Tue, 11 May 2010 09:35:19 +0000 (09:35 +0000)]
sh: switch sh7724 to clkdev

This patch converts the remaining sh7724 clocks
to use clkdev for lookup. The now unused name
and id from struct clk are also removed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: switch legacy clocks to clkdev
Magnus Damm [Tue, 11 May 2010 09:35:11 +0000 (09:35 +0000)]
sh: switch legacy clocks to clkdev

This patch converts the legacy clocks to register
using clkdev. Also the clock name is removed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: get rid of div4 clock name
Magnus Damm [Tue, 11 May 2010 07:06:13 +0000 (07:06 +0000)]
sh: get rid of div4 clock name

Remove the name parameter from SH_CLK_DIV4() and
adjust the processor specific code. The lookup
happens using clkdev so the name is unused.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7786 div4 clkdev lookup
Magnus Damm [Tue, 11 May 2010 07:06:05 +0000 (07:06 +0000)]
sh: sh7786 div4 clkdev lookup

Add sh7786 DIV4 clocks to the clkdev lookup list.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7785 div4 clkdev lookup
Magnus Damm [Tue, 11 May 2010 07:05:58 +0000 (07:05 +0000)]
sh: sh7785 div4 clkdev lookup

Add sh7785 DIV4 clocks to the clkdev lookup list.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7366 div4 clkdev lookup
Magnus Damm [Tue, 11 May 2010 07:05:50 +0000 (07:05 +0000)]
sh: sh7366 div4 clkdev lookup

Add sh7366 DIV4 clocks to the clkdev lookup list.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7343 div4 clkdev lookup
Magnus Damm [Tue, 11 May 2010 07:05:42 +0000 (07:05 +0000)]
sh: sh7343 div4 clkdev lookup

Add sh7343 DIV4 clocks to the clkdev lookup list.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7724 div4 clkdev lookup
Magnus Damm [Tue, 11 May 2010 07:05:32 +0000 (07:05 +0000)]
sh: sh7724 div4 clkdev lookup

Add sh7724 DIV4 clocks to the clkdev lookup list.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7723 div4 clkdev lookup
Magnus Damm [Tue, 11 May 2010 07:05:25 +0000 (07:05 +0000)]
sh: sh7723 div4 clkdev lookup

Add sh7723 DIV4 clocks to the clkdev lookup list.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7722 div4 clkdev lookup
Magnus Damm [Tue, 11 May 2010 07:05:17 +0000 (07:05 +0000)]
sh: sh7722 div4 clkdev lookup

Add sh7722 DIV4 clocks to the clkdev lookup list.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: div4 reparent workaround
Magnus Damm [Tue, 11 May 2010 07:05:09 +0000 (07:05 +0000)]
sh: div4 reparent workaround

Update the div4 set_parent() callback to use the
flags instead of name to determine parent index.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: get rid of mstp32 clock name and id
Magnus Damm [Tue, 11 May 2010 05:00:47 +0000 (05:00 +0000)]
sh: get rid of mstp32 clock name and id

Remove the name and the id from SH_CLK_MSTP32().
Now when lookups are handled by clkdev they are
not needed anymore.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7786 mstp32 clkdev lookup
Magnus Damm [Tue, 11 May 2010 05:00:38 +0000 (05:00 +0000)]
sh: sh7786 mstp32 clkdev lookup

Add sh7786 MSTP clocks to the clkdev lookup table.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7786 mstp32 index rework
Magnus Damm [Tue, 11 May 2010 05:00:30 +0000 (05:00 +0000)]
sh: sh7786 mstp32 index rework

This patch adds sh7786 MSTP enums for mstp_clks[] index.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7785 mstp32 clkdev lookup
Magnus Damm [Tue, 11 May 2010 05:00:22 +0000 (05:00 +0000)]
sh: sh7785 mstp32 clkdev lookup

Add sh7785 MSTP clocks to the clkdev lookup table.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7785 mstp32 index rework
Magnus Damm [Tue, 11 May 2010 05:00:14 +0000 (05:00 +0000)]
sh: sh7785 mstp32 index rework

This patch adds sh7785 MSTP enums for mstp_clks[] index.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7366 mstp32 clkdev lookup
Magnus Damm [Tue, 11 May 2010 05:00:06 +0000 (05:00 +0000)]
sh: sh7366 mstp32 clkdev lookup

Add sh7366 MSTP clocks to the clkdev lookup table.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7366 mstp32 index rework
Magnus Damm [Tue, 11 May 2010 04:59:58 +0000 (04:59 +0000)]
sh: sh7366 mstp32 index rework

This patch adds sh7366 MSTP enums for mstp_clks[] index.
The MSTP bit for the SIU is removed as well since it is
not included in the documentation. Most likely an old
copy paste error from sh7722.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7343 mstp32 clkdev lookup
Magnus Damm [Tue, 11 May 2010 04:59:50 +0000 (04:59 +0000)]
sh: sh7343 mstp32 clkdev lookup

Add sh7343 MSTP clocks to the clkdev lookup table.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7343 mstp32 index rework
Magnus Damm [Tue, 11 May 2010 04:59:43 +0000 (04:59 +0000)]
sh: sh7343 mstp32 index rework

This patch adds sh7343 MSTP enums for mstp_clks[] index.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: clkfwk: Use debugfs_remove_recursive() for rewinding
Hiroshi DOYU [Mon, 10 May 2010 11:50:55 +0000 (14:50 +0300)]
sh: clkfwk: Use debugfs_remove_recursive() for rewinding

Rewinding each debugfs entries to unregister if an error happens.

Based on the commit ca4caa4e1d45f9542fa54263974d0ef637157b4a

Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: get rid of div6 clock names
Magnus Damm [Mon, 10 May 2010 14:02:09 +0000 (14:02 +0000)]
sh: get rid of div6 clock names

Get rid of div6 clock names on
sh7343/sh7366/sh7722/sh7723/sh7724

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: tie in div6 clocks using clkdev
Magnus Damm [Mon, 10 May 2010 14:01:55 +0000 (14:01 +0000)]
sh: tie in div6 clocks using clkdev

Use clkdev for div6 lookup on SH-Mobile processors:
sh7343/sh7366/sh7722/sh7723/sh7724

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: get rid of hwblk clock names
Magnus Damm [Mon, 10 May 2010 14:01:44 +0000 (14:01 +0000)]
sh: get rid of hwblk clock names

Remove the clock name from sh7722/sh7723/sh7724
hwblk clocks. Lookup is handled by clkdev.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: allow registering clocks without name
Magnus Damm [Mon, 10 May 2010 14:01:34 +0000 (14:01 +0000)]
sh: allow registering clocks without name

Modify the SuperH clock code to support struct clk
with NULL as name. Such clocks will not be hooked
up to debugfs.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: tie in hwblk clocks using clkdev
Magnus Damm [Mon, 10 May 2010 14:01:22 +0000 (14:01 +0000)]
sh: tie in hwblk clocks using clkdev

Use clkdev for lookup of hwblk clocks on
sh7722/sh7723/sh7724.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: scif and tmu clkdev changes
Magnus Damm [Mon, 10 May 2010 14:01:12 +0000 (14:01 +0000)]
sh: scif and tmu clkdev changes

Modify sh7722/sh7723/sh7724 to use clkdev for
TMU and SCIF clock lookups.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: hwblk index rework
Magnus Damm [Mon, 10 May 2010 14:01:02 +0000 (14:01 +0000)]
sh: hwblk index rework

Rework the sh7722/sh7723/sh7724 hwblk code to use the
hwblk id as index in the mstp clock array.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: Make initrd detection more robust.
Paul Mundt [Thu, 6 May 2010 06:09:45 +0000 (15:09 +0900)]
sh: Make initrd detection more robust.

Various boot loaders go to various extents to thwart the initrd detection
logic (mostly on account of not being able to be bothered with adhering
to the established boot ABI), so we make the detection logic a bit more
robust. This makes it possible to work around the SDK7786's firmware's
attempts to thwart compressed image booting. Victory is mine.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: native_cpu_disable() build error when CONFIG_HOTPLUG_CPU=n
Matt Fleming [Wed, 28 Apr 2010 11:11:30 +0000 (11:11 +0000)]
sh: native_cpu_disable() build error when CONFIG_HOTPLUG_CPU=n

arch/sh/kernel/smp.c:164: error: conflicting types for 'native_cpu_disable'
/home/matt/src/kernels/sh-2.6/arch/sh/include/asm/smp.h:48: error: previous declaration of 'native_cpu_disable' was here

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: add CONFIG_VIRTUALIZATION for virtio support
Magnus Damm [Wed, 28 Apr 2010 05:46:11 +0000 (05:46 +0000)]
sh: add CONFIG_VIRTUALIZATION for virtio support

Add CONFIG_VIRTUALIZATION to the SH architecture
and include the virtio code there. Used to enable
the virtio drivers under QEMU.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: make latencytop available on SMP, too.
Paul Mundt [Tue, 27 Apr 2010 07:41:12 +0000 (16:41 +0900)]
sh: make latencytop available on SMP, too.

The UP dependency was inherited from ARM, which seems to have run in to
it due to the stacktrace code not being available for SMP in certain
cases, as we don't have this particular limitation there is no specific
need to block on the SMP dependency.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agoMerge branch 'sh/smp'
Paul Mundt [Mon, 26 Apr 2010 10:11:51 +0000 (19:11 +0900)]
Merge branch 'sh/smp'

14 years agosh: CPU hotplug support for SH-X3 SMP.
Paul Mundt [Mon, 26 Apr 2010 10:09:57 +0000 (19:09 +0900)]
sh: CPU hotplug support for SH-X3 SMP.

This wires up CPU hotplug for SH-X3 SMP CPUs. Presently only secondary
cores can be hotplugged given that the boot CPU has to contend with the
broadcast timer. When real local timers are implemented this restriction
can be lifted.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: CPU hotplug support.
Paul Mundt [Mon, 26 Apr 2010 10:08:55 +0000 (19:08 +0900)]
sh: CPU hotplug support.

This adds preliminary support for CPU hotplug for SH SMP systems.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: cache secondary CPUs idle loop.
Paul Mundt [Mon, 26 Apr 2010 09:59:47 +0000 (18:59 +0900)]
sh: cache secondary CPUs idle loop.

This provides a cache of the secondary CPUs idle loop for the cases where
hotplug simply enters a low power state instead of resetting or powering
off the core.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: flag smp_store_cpu_info() __cpuinit.
Paul Mundt [Mon, 26 Apr 2010 09:55:01 +0000 (18:55 +0900)]
sh: flag smp_store_cpu_info() __cpuinit.

smp_store_cpu_info() is presently flagged as __init, but is called by
start_secondary() which is __cpuinit, fix it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: provide percpu CPU states for hotplug notifiers.
Paul Mundt [Mon, 26 Apr 2010 09:49:58 +0000 (18:49 +0900)]
sh: provide percpu CPU states for hotplug notifiers.

This provides percpu CPU states in preparation for CPU hotplug and the
associated notifier chains.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: Make sure all SH-X3 cores are populated in the present CPU map.
Paul Mundt [Mon, 26 Apr 2010 09:44:04 +0000 (18:44 +0900)]
sh: Make sure all SH-X3 cores are populated in the present CPU map.

This iterates over the maximum number of CPUs we plan to support and
makes sure they're all set in the present CPU map.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: convert online CPU map twiddling to cpumask.
Paul Mundt [Mon, 26 Apr 2010 09:39:50 +0000 (18:39 +0900)]
sh: convert online CPU map twiddling to cpumask.

This converts from cpu_set() for the online map to set_cpu_online().
The two online map modifiers were the last remaining manual map
manipulation bits, with this in place everything now goes through
cpumask.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: arch/sh/kernel/setup.c needs asm/smp.h.
Paul Mundt [Mon, 26 Apr 2010 09:35:44 +0000 (18:35 +0900)]
sh: arch/sh/kernel/setup.c needs asm/smp.h.

With the platform ops migration, the definitions still need to be
included in the CONFIG_SMP=n case, so make the asm/smp.h include
explicit.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: Flag present CPUs hotpluggable in topology registration.
Paul Mundt [Mon, 26 Apr 2010 09:20:29 +0000 (18:20 +0900)]
sh: Flag present CPUs hotpluggable in topology registration.

When registering CPUs in the topology initialization ensure that all of
the present CPUs are flagged as hotpluggable.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: mach-sdk7786: update defconfig for compressed kernel image.
Paul Mundt [Mon, 26 Apr 2010 08:45:34 +0000 (17:45 +0900)]
sh: mach-sdk7786: update defconfig for compressed kernel image.

Now that compressed image loading is possible for sdk7786, drop the
vmlinux.bin default image target and update the defconfig accordingly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: Kill off dangling goto labels from oom-killer rework.
Paul Mundt [Mon, 26 Apr 2010 07:15:17 +0000 (16:15 +0900)]
sh: Kill off dangling goto labels from oom-killer rework.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agoMerge branch 'sh/stable-updates'
Paul Mundt [Mon, 26 Apr 2010 07:08:27 +0000 (16:08 +0900)]
Merge branch 'sh/stable-updates'

Conflicts:
arch/sh/kernel/dwarf.c
drivers/dma/shdma.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agoSH: fix error paths in DMA driver
Guennadi Liakhovetski [Mon, 19 Apr 2010 08:39:39 +0000 (08:39 +0000)]
SH: fix error paths in DMA driver

If channel allocation is failing, mark the channel unused and give PM a chance
to power down the hardware.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: sh7751 pci controller io port fix
Magnus Damm [Thu, 22 Apr 2010 06:21:10 +0000 (06:21 +0000)]
sh: sh7751 pci controller io port fix

This patch updates the sh7751 pci code to handle io ports
correctly. The code is based on the sh7788x implementation.

Tested on a R2D-1 board with CONFIG_8139TOO_PIO=y.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: Fix maximum number of SCIF ports in R2D defconfigs
Magnus Damm [Thu, 22 Apr 2010 06:06:04 +0000 (06:06 +0000)]
sh: Fix maximum number of SCIF ports in R2D defconfigs

Update the R2D defconfigs to bump up the maximum
number of SCIF ports on the system.

Fixes a broken serial console regression added
by cd5f107628ab89c5dec5ad923f1c27f4cba41972.

Reported-by: Shin-ichiro KAWASAKI <kawasaki@juno.dti.ne.jp>
Signed-off-by: Magnus Damm <damm@opensource.se>
Tested-by: Alexandre Courbot <alex@dcl.info.waseda.ac.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agoSH: fix TS field shift calculation for DMA drivers
Guennadi Liakhovetski [Wed, 21 Apr 2010 15:14:19 +0000 (15:14 +0000)]
SH: fix TS field shift calculation for DMA drivers

CHCR_TS_HIGH_SHIFT is defined as a shift of TS high bits in CHCR register,
relative to low bits. The TS_INDEX2VAL() macro has to take this into account.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agoMerge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mfleming/sh-2.6
Paul Mundt [Mon, 26 Apr 2010 06:54:48 +0000 (15:54 +0900)]
Merge branch 'master' of /linux/kernel/git/mfleming/sh-2.6

* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mfleming/sh-2.6:
  sh: Use correct mask when comparing PMB DATA array values
  sh: Do not try merging two 128MB PMB mappings
  sh: Fix zImage load address when CONFIG_32BIT=y
  sh: Fix address to decompress at when CONFIG_32BIT=y
  sh: Assembly friendly __pa and __va definitions

14 years agoSH: constify multiple DMA related objects and references to them
Guennadi Liakhovetski [Wed, 21 Apr 2010 15:36:49 +0000 (15:36 +0000)]
SH: constify multiple DMA related objects and references to them

Lists of DMA channels and slaves are not changed, make them constant. Besides,
SH7724 channel and slave configuration of both DMA controllers is identical,
remove the extra copy of the configuration data.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agosh: invoke oom-killer from page fault
Nick Piggin [Thu, 22 Apr 2010 16:06:26 +0000 (16:06 +0000)]
sh: invoke oom-killer from page fault

As explained in commit 1c0fe6e3bd, we want to call the architecture independent
oom killer when getting an unexplained OOM from handle_mm_fault, rather than
simply killing current.

Cc: linux-sh@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Sun, 25 Apr 2010 23:28:56 +0000 (16:28 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  ipv6: Fix inet6_csk_bind_conflict()
  e100: Fix the TX workqueue race

14 years agoipv6: Fix inet6_csk_bind_conflict()
Eric Dumazet [Sun, 25 Apr 2010 22:09:42 +0000 (15:09 -0700)]
ipv6: Fix inet6_csk_bind_conflict()

Commit fda48a0d7a84 (tcp: bind() fix when many ports are bound)
introduced a bug on IPV6 part.
We should not call ipv6_addr_any(inet6_rcv_saddr(sk2)) but
ipv6_addr_any(inet6_rcv_saddr(sk)) because sk2 can be IPV4, while sk is
IPV6.

Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agosh: Use correct mask when comparing PMB DATA array values
Matt Fleming [Sun, 25 Apr 2010 19:18:41 +0000 (20:18 +0100)]
sh: Use correct mask when comparing PMB DATA array values

Previously we were masking the PMB DATA array values with the value of
__MEMORY_START | PMB_V, which misses some PFN bits off the mask.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
14 years agosh: Do not try merging two 128MB PMB mappings
Matt Fleming [Sun, 25 Apr 2010 16:29:07 +0000 (17:29 +0100)]
sh: Do not try merging two 128MB PMB mappings

There is a logic error in pmb_merge() that means we will incorrectly try
to merge two 128MB PMB mappings into one mapping. However, 256MB isn't a
valid PMB map size and pmb_merge() will actually drop the second 128MB
mapping.

This patch allows my SDK7786 board to boot when configured with
CONFIG_MEMORY_SIZE=0x10000000.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
14 years agosh: Fix zImage load address when CONFIG_32BIT=y
Matt Fleming [Sat, 24 Apr 2010 12:34:44 +0000 (13:34 +0100)]
sh: Fix zImage load address when CONFIG_32BIT=y

We can't necessarily use the P1SEG region to access RAM when running in
32BIT mode, so use CONFIG_MEMORY_START as the base address.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
14 years agosh: Fix address to decompress at when CONFIG_32BIT=y
Matt Fleming [Sat, 24 Apr 2010 12:28:20 +0000 (13:28 +0100)]
sh: Fix address to decompress at when CONFIG_32BIT=y

When running in 32BIT mode the P1SEG region doesn't necessarily provide
a window onto RAM (it depends how the bootloader setup the PMB). The
correct location to place the decompressed kernel is the physical
address of _text.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
14 years agosh: Assembly friendly __pa and __va definitions
Matt Fleming [Sat, 24 Apr 2010 10:12:12 +0000 (11:12 +0100)]
sh: Assembly friendly __pa and __va definitions

This patch defines ___pa and ___va which return the physical and virtual
address of an address, respectively. These macros are suitable for
calling from assembly because they don't include the C casts required by
__pa and __va.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
14 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Sun, 25 Apr 2010 17:01:51 +0000 (10:01 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: Issue the discard operation *before* releasing the blocks to be reused
  ext4: Fix buffer head leaks after calls to ext4_get_inode_loc()
  ext4: Fix possible lost inode write in no journal mode

14 years agoe100: Fix the TX workqueue race
Alan Cox [Sun, 25 Apr 2010 04:09:29 +0000 (21:09 -0700)]
e100: Fix the TX workqueue race

Nothing stops the workqueue being left to run in parallel with close or a
few other operations. This causes double unmaps and the like.

See kerneloops.org #1041230 for an example

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq
Linus Torvalds [Sat, 24 Apr 2010 18:35:21 +0000 (11:35 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] use max load in conservative governor
  [CPUFREQ] fix a lockdep warning

14 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Sat, 24 Apr 2010 18:34:17 +0000 (11:34 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (22 commits)
  gianfar: Fix potential oops during OF address translation
  fsl_pq_mdio: Fix kernel oops during OF address translation
  tcp: bind() fix when many ports are bound
  rdma: potential ERR_PTR dereference
  rtnetlink: potential ERR_PTR dereference
  net: ipv6 bind to device issue
  ipv6: allow to send packet after receiving ICMPv6 Too Big message with MTU field less than IPV6_MIN_MTU
  drivers/net/usb: Add new driver ipheth
  cxgb3: fix linkup issue
  X25 fix dead unaccepted sockets
  KS8851: NULL pointer dereference if list is empty
  net: 3c574_cs fix stats.tx_bytes counter
  xfrm6: ensure to use the same dev when building a bundle
  can: Fix possible NULL pointer dereference in ems_usb.c
  net: Fix an RCU warning in dev_pick_tx()
  ipv6: Fix tcp_v6_send_response transport header setting.
  bridge: add a missing ntohs()
  8139too: Fix a typo in the function name.
  mac80211: pass HT changes to driver when off channel
  mac80211: remove bogus TX agg state assignment
  ...

14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
Linus Torvalds [Sat, 24 Apr 2010 18:32:12 +0000 (11:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI: Ensure we re-enable devices on resume
  x86/PCI: parse additional host bridge window resource types
  PCI: revert broken device warning
  PCI aerdrv: use correct bit defines and add 2ms delay to aer_root_reset
  x86/PCI: ignore Consumer/Producer bit in ACPI window descriptions

14 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platf...
Linus Torvalds [Sat, 24 Apr 2010 18:31:57 +0000 (11:31 -0700)]
Merge branch 'for_linus' of git://git./linux/kernel/git/mjg59/platform-drivers-x86

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86:
  eeepc-laptop: add missing sparse_keymap_free
  eeepc-wmi: Build fix
  asus: don't modify bluetooth/wlan on boot
  dell-wmi: Fix memory leak
  eeepc-wmi: add backlight support
  eeepc-wmi: use a platform device as parent device of all sub-devices
  eeepc-wmi: add an eeepc_wmi context structure

14 years agoinitramfs: handle unrecognised decompressor when unpacking
Phillip Lougher [Fri, 23 Apr 2010 17:18:11 +0000 (13:18 -0400)]
initramfs: handle unrecognised decompressor when unpacking

The unpack routine fails to handle the decompress_method() returning
unrecognised decompressor (compress_name == NULL).  This results in the
routine looping eventually oopsing on an out of bounds memory access.

Note this bug is usually hidden, only triggering on trailing junk after
one or more correct compressed blocks.  The case of the compressed archive
being complete junk is (by accident?) caught by the if (state != Reset)
check because state is initialised to Start, but not updated due to the
decompressor not having been called.  Obviously if the junk is trailing a
correctly decompressed buffer, state == Reset from the previous call to
the decompressor.

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoksm: check for ERR_PTR from follow_page()
Dan Carpenter [Fri, 23 Apr 2010 17:18:10 +0000 (13:18 -0400)]
ksm: check for ERR_PTR from follow_page()

The follow_page() function can potentially return -EFAULT so I added
checks for this.

Also I silenced an uninitialized variable warning on my version of gcc
(version 4.3.2).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Rik van Riel <riel@redhat.com>
Acked-by: Izik Eidus <ieidus@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoVMware Balloon driver
Dmitry Torokhov [Fri, 23 Apr 2010 17:18:08 +0000 (13:18 -0400)]
VMware Balloon driver

This is a standalone version of VMware Balloon driver.  Ballooning is a
technique that allows hypervisor dynamically limit the amount of memory
available to the guest (with guest cooperation).  In the overcommit
scenario, when hypervisor set detects that it needs to shuffle some
memory, it instructs the driver to allocate certain number of pages, and
the underlying memory gets returned to the hypervisor.  Later hypervisor
may return memory to the guest by reattaching memory to the pageframes and
instructing the driver to "deflate" balloon.

We are submitting a standalone driver because KVM maintainer (Avi Kivity)
expressed opinion (rightly) that our transport does not fit well into
virtqueue paradigm and thus it does not make much sense to integrate with
virtio.

There were also some concerns whether current ballooning technique is the
right thing.  If there appears a better framework to achieve this we are
prepared to evaluate and switch to using it, but in the meantime we'd like
to get this driver upstream.

We want to get the driver accepted in distributions so that users do not
have to deal with an out-of-tree module and many distributions have
"upstream first" requirement.

The driver has been shipping for a number of years and users running on
VMware platform will have it installed as part of VMware Tools even if it
will not come from a distribution, thus there should not be additional
risk in pulling the driver into mainline.  The driver will only activate
if host is VMware so everyone else should not be affected at all.

Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Cc: Avi Kivity <avi@redhat.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agofs/block_dev.c: fix performance regression in O_DIRECT|O_SYNC writes to block devices
Anton Blanchard [Fri, 23 Apr 2010 17:18:06 +0000 (13:18 -0400)]
fs/block_dev.c: fix performance regression in O_DIRECT|O_SYNC writes to block devices

We are seeing a large regression in database performance on recent
kernels.  The database opens a block device with O_DIRECT|O_SYNC and a
number of threads write to different regions of the file at the same time.

A simple test case is below.  I haven't defined DEVICE since getting it
wrong will destroy your data :) On an 3 disk LVM with a 64k chunk size we
see about 17MB/sec and only a few threads in IO wait:

procs  -----io---- -system-- -----cpu------
 r  b     bi    bo   in   cs us sy id wa st
 0  3      0 16170  656 2259  0  0 86 14  0
 0  2      0 16704  695 2408  0  0 92  8  0
 0  2      0 17308  744 2653  0  0 86 14  0
 0  2      0 17933  759 2777  0  0 89 10  0

Most threads are blocking in vfs_fsync_range, which has:

        mutex_lock(&mapping->host->i_mutex);
        err = fop->fsync(file, dentry, datasync);
        if (!ret)
                ret = err;
        mutex_unlock(&mapping->host->i_mutex);

commit 148f948ba877f4d3cdef036b1ff6d9f68986706a (vfs: Introduce new
helpers for syncing after writing to O_SYNC file or IS_SYNC inode) offers
some explanation of what is going on:

    Use these new helpers for syncing from generic VFS functions. This makes
    O_SYNC writes to block devices acquire i_mutex for syncing. If we really
    care about this, we can make block_fsync() drop the i_mutex and reacquire
    it before it returns.

Thanks Jan for such a good commit message!  As well as dropping i_mutex,
Christoph suggests we should remove the call to sync_blockdev():

> sync_blockdev is an overcomplicated alias for filemap_write_and_wait on
> the block device inode, which is exactly what we did just before calling
> into ->fsync

The patch below incorporates both suggestions. With it the testcase improves
from 17MB/s to 68M/sec:

procs  -----io---- -system-- -----cpu------
 r  b     bi    bo   in   cs us sy id wa st
 0  7      0 65536 1000 3878  0  0 70 30  0
 0 34      0 69632 1016 3921  0  1 46 53  0
 0 57      0 69632 1000 3921  0  0 55 45  0
 0 53      0 69640  754 4111  0  0 81 19  0

Testcase:

#define _GNU_SOURCE
#include <stdio.h>
#include <pthread.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#define NR_THREADS 64
#define BUFSIZE (64 * 1024)

#define DEVICE "/dev/mapper/XXXXXX"

#define ALIGN(VAL, SIZE) (((VAL)+(SIZE)-1) & ~((SIZE)-1))

static int fd;

static void *doit(void *arg)
{
unsigned long offset = (long)arg;
char *b, *buf;

b = malloc(BUFSIZE + 1024);
buf = (char *)ALIGN((unsigned long)b, 1024);
memset(buf, 0, BUFSIZE);

while (1)
pwrite(fd, buf, BUFSIZE, offset);
}

int main(int argc, char *argv[])
{
int flags = O_RDWR|O_DIRECT;
int i;
unsigned long offset = 0;

if (argc > 1 && !strcmp(argv[1], "O_SYNC"))
flags |= O_SYNC;

fd = open(DEVICE, flags);
if (fd == -1) {
perror("open");
exit(1);
}

for (i = 0; i < NR_THREADS-1; i++) {
pthread_t tid;
pthread_create(&tid, NULL, doit, (void *)offset);
offset += BUFSIZE;
}
doit((void *)offset);

return 0;
}

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agolib/vsprintf.c: add missing EXPORT_SYMBOL(simple_strtoll)
Hans Verkuil [Fri, 23 Apr 2010 17:18:04 +0000 (13:18 -0400)]
lib/vsprintf.c: add missing EXPORT_SYMBOL(simple_strtoll)

Add a missing EXPORT_SYMBOL.

I must be the first person that wants to use this function :-)

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agow1: fix omap 1-wire driver compilation
Amit Kucheria [Fri, 23 Apr 2010 17:18:03 +0000 (13:18 -0400)]
w1: fix omap 1-wire driver compilation

Fixes the following error:

  drivers/w1/masters/omap_hdq.c: In function 'hdq_wait_for_flag':
  drivers/w1/masters/omap_hdq.c:137: error: implicit declaration of function 'schedule_timeout_uninterruptible'
  drivers/w1/masters/omap_hdq.c: In function 'hdq_write_byte':
  drivers/w1/masters/omap_hdq.c:177: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function)
  drivers/w1/masters/omap_hdq.c:177: error: (Each undeclared identifier is reported only once
  drivers/w1/masters/omap_hdq.c:177: error: for each function it appears in.)
  drivers/w1/masters/omap_hdq.c:177: error: implicit declaration of function 'schedule_timeout'
  drivers/w1/masters/omap_hdq.c: In function 'hdq_isr':
  drivers/w1/masters/omap_hdq.c:221: error: 'TASK_NORMAL' undeclared (first use in this function)
  drivers/w1/masters/omap_hdq.c: In function 'omap_hdq_break':
  drivers/w1/masters/omap_hdq.c:316: error: 'TASK_UNINTERRUPTIBLE' undeclared (first use in this function)

Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agormap: anon_vma_prepare() can leak anon_vma_chain
Oleg Nesterov [Fri, 23 Apr 2010 17:18:01 +0000 (13:18 -0400)]
rmap: anon_vma_prepare() can leak anon_vma_chain

If find_mergeable_anon_vma() succeeds but another thread installs
->anon_vma before we take ptl, then allocated == NULL but avc should be
freed.  Change the code to check avc != NULL to detect this case.

Also, a couple of whitespace changes to make the critical section more
visible.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agokeys: fix an RCU warning
David Howells [Fri, 23 Apr 2010 17:18:00 +0000 (13:18 -0400)]
keys: fix an RCU warning

Fix the following RCU warning:

  ===================================================
  [ INFO: suspicious rcu_dereference_check() usage. ]
  ---------------------------------------------------
  security/keys/request_key.c:116 invoked rcu_dereference_check() without protection!

This was caused by doing:

[root@andromeda ~]# keyctl newring fred @s
539196288
[root@andromeda ~]# keyctl request2 user a a 539196288
request_key: Required key not available

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agolib: fix the use of LZO to decompress initramfs images
Albin Tonnerre [Fri, 23 Apr 2010 17:17:58 +0000 (13:17 -0400)]
lib: fix the use of LZO to decompress initramfs images

This patch fixes 2 issues with the LZO decompressor:

- It doesn't handle the case where a block isn't compressed at all.  In
  this case, calling lzo1x_decompress_safe will fail, so we need to just
  use memcpy() instead (the upstream LZO code does something similar)

- Since commit 54291362d2a5738e1b0495df2abcb9e6b0563a3f ("initramfs: add
  missing decompressor error check") , the decompressor return code is
  checked in the init/initramfs.c The LZO decompressor didn't return the
  expected value, causing the initramfs code to falsely believe a
  decompression error occured

Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Tested-by: bert schulze <spambemyguest@googlemail.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agohugetlb: fix infinite loop in get_futex_key() when backed by huge pages
Mel Gorman [Fri, 23 Apr 2010 17:17:56 +0000 (13:17 -0400)]
hugetlb: fix infinite loop in get_futex_key() when backed by huge pages

If a futex key happens to be located within a huge page mapped
MAP_PRIVATE, get_futex_key() can go into an infinite loop waiting for a
page->mapping that will never exist.

See https://bugzilla.redhat.com/show_bug.cgi?id=552257 for more details
about the problem.

This patch makes page->mapping a poisoned value that includes
PAGE_MAPPING_ANON mapped MAP_PRIVATE.  This is enough for futex to
continue but because of PAGE_MAPPING_ANON, the poisoned value is not
dereferenced or used by futex.  No other part of the VM should be
dereferencing the page->mapping of a hugetlbfs page as its page cache is
not on the LRU.

This patch fixes the problem with the test case described in the bugzilla.

[akpm@linux-foundation.org: mel cant spel]
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Darren Hart <darren@dvhart.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agow1: w1 temp: fix negative termperature calculation
Ian Dall [Fri, 23 Apr 2010 17:17:53 +0000 (13:17 -0400)]
w1: w1 temp: fix negative termperature calculation

Fix regression caused by commit 507e2fbaaacb6f164b4125b87c5002f95143174b
("w1: w1 temp calculation overflow fix") whereby negative temperatures for
the DS18B20 are not converted properly.

When the temperature exceeds 32767 milli-degrees the temperature overflows
to -32768 millidegrees.  These are both well within the -55 - +125 degree
range for the sensor.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=12646

Signed-of-by: Ian Dall <ian@beware.dropbear.id.au>
Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Tested-by: Karsten Elfenbein <kelfe@gmx.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agocgroups: fix procs documentation
KAMEZAWA Hiroyuki [Fri, 23 Apr 2010 17:17:51 +0000 (13:17 -0400)]
cgroups: fix procs documentation

Writing to cgroup.procs is not supported now.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Ben Blum <bblum@andrew.cmu.edu>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agodrivers/video/efifb.c: support framebuffer for NVIDIA 9400M in MacBook Pro 5,1
Thomas Gerlach [Fri, 23 Apr 2010 17:17:50 +0000 (13:17 -0400)]
drivers/video/efifb.c: support framebuffer for NVIDIA 9400M in MacBook Pro 5,1

Description of patch:
---------------------

This is a patch for the EFI framebuffer driver to enable the framebuffer
of the NVIDIA 9400M as found in MacBook Pro (MBP) 5,1 and up.  The
framebuffer of the NVIDIA graphic cards are located at the following
addresses in memory:

9400M:    0xC0010000
9600M GT: 0xB0030000

The patch delivered right here only provides the memory location of the
framebuffer of the 9400M device.  The 9600M GT is not covered.  It is
assumed that the 9400M is used when powered up the MBP.

The information which device is currently powered and in use is stored in
the 64 bytes large EFI variable "gpu-power-prefs".  More specifically,
byte 0x3B indicates whether 9600M GT (0x00) or 9400M (0x01) is online.

The PCI bus IDs are the following:
9400M:    PCI 03:00:00
9600M GT: PCI 02:00:00

The EFI variables can be easily read-out and manipulated with "rEFIt", an
MBP specific bootloader tool.  For more information on how handle rEFIt
and EFI variables please consult "http://refit.sourceforge.net" and
"http://ubuntuforums.org/archive/index.php/t-1076879.html".

IMPORTANT NOTE: The information on how to activate the 9400M device given
at "ubuntuforums.org" is not correct, since it states

gpu-power-prefs[0x3B] = 0x00 -> 9400M (PCI 02:00:00)
gpu-power-prefs[0x3B] = 0x01 -> 9600M GT (PCI 03:00:00)

Actually, the assignment of the values and the PCI bus IDs are swapped.

Suggestions:
------------

To cover framebuffers of both 9400M and 9600M GT, I would suggest to
implement a conditional on "gpu-power-prefs".  Depending on the value of
byte 0x3B, the according framebuffer is selected.  However, this requires
kernel access to the EFI variables.

[akpm@linux-foundation.org: rename optname, per Peter Jones]
Signed-off-by: Thomas Gerlach <t.m.gerlach@freenet.de>
Acked-by: Peter Jones <pjones@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agolis3: add support for HP ProBook 432x/442x/452x/522x
Takashi Iwai [Fri, 23 Apr 2010 17:17:48 +0000 (13:17 -0400)]
lis3: add support for HP ProBook 432x/442x/452x/522x

Correct axis-mappings for new HP ProBook laptops.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agomtd: fix Orion NAND driver compilation with ARM OABI
Paulius Zaleckas [Fri, 23 Apr 2010 17:17:47 +0000 (13:17 -0400)]
mtd: fix Orion NAND driver compilation with ARM OABI

We must tell GCC to use even register for variable passed to ldrd
instruction.  Without this patch GCC 4.2.1 puts this variable to r2/r3 on
EABI and r3/r4 on OABI, so force it to r2/r3.  This does not change
anything when EABI and OABI compilation works OK.

Without this patch and with OABI I get:

    CC      drivers/mtd/nand/orion_nand.o
  /tmp/ccMkwOCs.s: Assembler messages:
  /tmp/ccMkwOCs.s:63: Error: first destination register must be even -- `ldrd r3,[ip]'
  make[5]: *** [drivers/mtd/nand/orion_nand.o] Error 1

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Artem Bityutskiy <dedekind1@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jamie Lokier <jamie@shareable.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoflex_array: fix the panic when calling flex_array_alloc() without __GFP_ZERO
Changli Gao [Fri, 23 Apr 2010 17:17:45 +0000 (13:17 -0400)]
flex_array: fix the panic when calling flex_array_alloc() without __GFP_ZERO

memset() is called with the wrong address and the kernel panics.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: David Rientjes <rientjes@google.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agokernel/sys.c: fix compat uname machine
Andreas Schwab [Fri, 23 Apr 2010 17:17:44 +0000 (13:17 -0400)]
kernel/sys.c: fix compat uname machine

On ppc64 you get this error:

  $ setarch ppc -R true
  setarch: ppc: Unrecognized architecture

because uname still reports ppc64 as the machine.

So mask off the personality flags when checking for PER_LINUX32.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoreiserfs: fix corruption during shrinking of xattrs
Jeff Mahoney [Fri, 23 Apr 2010 17:17:41 +0000 (13:17 -0400)]
reiserfs: fix corruption during shrinking of xattrs

Commit 48b32a3553a54740d236b79a90f20147a25875e3 ("reiserfs: use generic
xattr handlers") introduced a problem that causes corruption when extended
attributes are replaced with a smaller value.

The issue is that the reiserfs_setattr to shrink the xattr file was moved
from before the write to after the write.

The root issue has always been in the reiserfs xattr code, but was papered
over by the fact that in the shrink case, the file would just be expanded
again while the xattr was written.

The end result is that the last 8 bytes of xattr data are lost.

This patch fixes it to use new_size.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=14826

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Reported-by: Christian Kujau <lists@nerdbynature.de>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Cc: Edward Shishkin <edward.shishkin@gmail.com>
Cc: Jethro Beekman <kernel@jbeekman.nl>
Cc: Greg Surbey <gregsurbey@hotmail.com>
Cc: Marco Gatti <marco.gatti@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agomemcg: fix prepare migration
Andrea Arcangeli [Fri, 23 Apr 2010 17:17:39 +0000 (13:17 -0400)]
memcg: fix prepare migration

If a signal is pending (task being killed by sigkill)
__mem_cgroup_try_charge will write NULL into &mem, and css_put will oops
on null pointer dereference.

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
  IP: [<ffffffff810fc6cc>] mem_cgroup_prepare_migration+0x7c/0xc0
  PGD a5d89067 PUD a5d8a067 PMD 0
  Oops: 0000 [#1] SMP
  last sysfs file: /sys/devices/platform/microcode/firmware/microcode/loading
  CPU 0
  Modules linked in: nfs lockd nfs_acl auth_rpcgss sunrpc acpi_cpufreq pcspkr sg [last unloaded: microcode]

  Pid: 5299, comm: largepages Tainted: G        W  2.6.34-rc3 #3 Penryn1600SLI-110dB/To Be Filled By O.E.M.
  RIP: 0010:[<ffffffff810fc6cc>]  [<ffffffff810fc6cc>] mem_cgroup_prepare_migration+0x7c/0xc0

[nishimura@mxp.nes.nec.co.jp: fix merge issues]
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoreiserfs: fix permissions on .reiserfs_priv
Jeff Mahoney [Fri, 23 Apr 2010 17:17:37 +0000 (13:17 -0400)]
reiserfs: fix permissions on .reiserfs_priv

Commit 677c9b2e393a0cd203bd54e9c18b012b2c73305a ("reiserfs: remove
privroot hiding in lookup") removed the magic from the lookup code to hide
the .reiserfs_priv directory since it was getting loaded at mount-time
instead.  The intent was that the entry would be hidden from the user via
a poisoned d_compare, but this was faulty.

This introduced a security issue where unprivileged users could access and
modify extended attributes or ACLs belonging to other users, including
root.

This patch resolves the issue by properly hiding .reiserfs_priv.  This was
the intent of the xattr poisoning code, but it appears to have never
worked as expected.  This is fixed by using d_revalidate instead of
d_compare.

This patch makes -oexpose_privroot a no-op.  I'm fine leaving it this way.
The effort involved in working out the corner cases wrt permissions and
caching outweigh the benefit of the feature.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Acked-by: Edward Shishkin <edward.shishkin@gmail.com>
Reported-by: Matt McCutchen <matt@mattmccutchen.net>
Tested-by: Matt McCutchen <matt@mattmccutchen.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agogianfar: Fix potential oops during OF address translation
Anton Vorontsov [Fri, 23 Apr 2010 07:12:44 +0000 (07:12 +0000)]
gianfar: Fix potential oops during OF address translation

gianfar driver may pass NULL pointer to the of_translate_address(),
which may lead to a kernel oops. Fix this by using of_iomap(), which
is also much simpler and shorter.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agofsl_pq_mdio: Fix kernel oops during OF address translation
Anton Vorontsov [Fri, 23 Apr 2010 07:12:35 +0000 (07:12 +0000)]
fsl_pq_mdio: Fix kernel oops during OF address translation

Old P1020RDB device trees were not specifing tbipa address for
MDIO nodes, which is now causing this kernel oops:

 ...
 eth2: TX BD ring size for Q[6]: 256
 eth2: TX BD ring size for Q[7]: 256
 Unable to handle kernel paging request for data at address 0x00000000
 Faulting instruction address: 0xc0015504
 Oops: Kernel access of bad area, sig: 11 [#1]
 ...
 NIP [c0015504] memcpy+0x3c/0x9c
 LR [c000a9f8] __of_translate_address+0xfc/0x21c
 Call Trace:
 [df839e00] [c000a94c] __of_translate_address+0x50/0x21c (unreliable)
 [df839e50] [c01a33e8] get_gfar_tbipa+0xb0/0xe0
 ...

The old device trees are buggy, though having a dead ethernet is
better than a dead kernel, so fix the issue by using of_iomap().

Also, a somewhat similar issue exist in the probe() routine, though
there the oops is only a possibility. Nonetheless, fix it too.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
14 years agoeeepc-laptop: add missing sparse_keymap_free
Corentin Chary [Sat, 10 Apr 2010 09:02:51 +0000 (11:02 +0200)]
eeepc-laptop: add missing sparse_keymap_free

Also remove legacy keymap which was not used since
we use sparse_keymap.

Signed-off-by: Corentin Chary <corentincj@iksaif.net>
14 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 23 Apr 2010 17:40:36 +0000 (10:40 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: hda: Use STAC_DELL_M6_BOTH quirk for Dell Studio 1558
  ALSA: hda: Use LPIB quirk for DG965OT board version AAD63733-203
  ALSA: snd-meastro3: Ignore spurious HV interrupts during suspend / resume
  ALSA: snd-meastro3: Add amp_gpio quirk for Compaq EVO N600C
  ALSA: hda: Use ALC880_F1734 quirk for Fujitsu Siemens AMILO Xi 1526
  ALSA: hda: Use STAC_DELL_M6_BOTH quirk for Dell Studio XPS 1645
  ALSA: hda - Fix resume from StR of HP 2510p with docking-station

14 years agoCleanup generic block based fiemap
Josef Bacik [Fri, 23 Apr 2010 16:17:17 +0000 (12:17 -0400)]
Cleanup generic block based fiemap

This cleans up a few of the complaints of __generic_block_fiemap.  I've
fixed all the typing stuff, used inline functions instead of macros,
gotten rid of a couple of variables, and made sure the size and block
requests are all block aligned.  It also fixes a problem where sometimes
FIEMAP_EXTENT_LAST wasn't being set properly.

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agodrm/i915: fix non-Ironlake 965 class crashes
Jesse Barnes [Fri, 23 Apr 2010 16:32:23 +0000 (09:32 -0700)]
drm/i915: fix non-Ironlake 965 class crashes

My PIPE_CONTROL fix (just sent via Eric's tree) was buggy; I was
testing a whole set of patches together and missed a conversion to the
new HAS_PIPE_CONTROL macro, which will cause breakage on non-Ironlake
965 class chips.  Fortunately, the fix is trivial and has been tested.

Be sure to use the HAS_PIPE_CONTROL macro in i915_get_gem_seqno, or
we'll end up reading the wrong graphics memory, likely causing hangs,
crashes, or worse.

Reported-by: Zdenek Kabelac <zdenek.kabelac@gmail.com>
Reported-by: Toralf Förster <toralf.foerster@gmx.de>
Tested-by: Toralf Förster <toralf.foerster@gmx.de>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
14 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Fri, 23 Apr 2010 15:10:48 +0000 (17:10 +0200)]
Merge branch 'fix/misc' into for-linus

14 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 23 Apr 2010 15:10:44 +0000 (17:10 +0200)]
Merge branch 'fix/hda' into for-linus

14 years agoALSA: hda: Use STAC_DELL_M6_BOTH quirk for Dell Studio 1558
Daniel T Chen [Thu, 22 Apr 2010 21:54:45 +0000 (17:54 -0400)]
ALSA: hda: Use STAC_DELL_M6_BOTH quirk for Dell Studio 1558

BugLink: https://launchpad.net/bugs/568600
The OR has verified that the dell-m6 model quirk is necessary for audio
to be audible by default on the Dell Studio XPS 1645.

This change is necessary for 2.6.32.11 and 2.6.33.2 alike.

Reported-by: Andy Ross <andy@plausible.org>
Tested-by: Andy Ross <andy@plausible.org>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
14 years agoALSA: hda: Use LPIB quirk for DG965OT board version AAD63733-203
Daniel T Chen [Wed, 21 Apr 2010 23:55:43 +0000 (19:55 -0400)]
ALSA: hda: Use LPIB quirk for DG965OT board version AAD63733-203

BugLink: https://launchpad.net/bugs/459083
The OR has verified with 2.6.32.11 and the latest alsa-driver stable
daily snapshot that position_fix=1 is necessary for the external mic
to work and for PulseAudio not to crash constantly.

This patch is necessary also for 2.6.32.11 and 2.6.33.2.

Reported-by: <imwithid@yahoo.com>
Tested-by: <imwithid@yahoo.com>
Cc: <stable@kernel.org>
Signed-off-by: Daniel T Chen <crimsun@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
14 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Fri, 23 Apr 2010 02:46:29 +0000 (19:46 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  libata: ensure NCQ error result taskfile is fully initialized before returning it via qc->result_tf.
  libata: fix docs, RE port and device of libata.force ID separated by point
  pata_pcmcia/ide-cs: add IDs for transcend and kingston cards
  libata: fix locking around blk_abort_request()