Commit Graph

29302 Commits

Author SHA1 Message Date
Guennadi Liakhovetski
8ceea7bd97 ARM: shmobile: r8a73a4: add a clock alias for the DMAC in DT mode
Devices, initialised from the Device Tree and from platform code usually
have different names. This patch adds a clock alias for DMAC on r8a73a4
in DT mode.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-10-08 09:27:21 +09:00
Guennadi Liakhovetski
159600807c ARM: shmobile: r8a7790: add I2C clocks and aliases for the DT mode
This patch adds clock definitions for the 4 I2C interfaces on r8a7790 and
clock aliases, suitable for the DT mode.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-10-08 09:27:21 +09:00
Max Filippov
a43e5bd76a ARM: shmobile: r8a7779: add HPB-DMAC support
Add HPB-DMAC platform device on R8A7779 SoC along with its slave and channel
configurations (only for SDHI0 so far).

Signed-off-by: Max Filippov <max.filippov@cogentembedded.com>
[Sergei: moved *enum* declaring HPB-DMAC slave IDs from now removed <mach/dma.h>
to <mach/r8a7779.h>, removed #include <mach/dma.h> from setup-r8a7779.c, removed
SSI-related *enum* values and SSI-related data from hpb_dmae_slaves[] and
hpb_dmae_channels[], added ASYNCMDR.ASBTMD{20|24|43} and ASYNCMDR.ASMD{20|24|43}
fields/values, fixed comments to ASYNCMDR.ASBTMD2[123] and ASYNCMDR.ASMD2[123]
fields/values, renamed all the bit/field/value #define's to include 'HBP_DMAE_'
prefix to match the driver, moved comments after the element initializers of
hpb_dmae_channels[].]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-10-08 09:27:21 +09:00
Max Filippov
1eb6b5a0e5 ARM: shmobile: r8a7778: add HPB-DMAC support
Add HPB-DMAC platform device on R8A7778 SoC along with its slave and channel
configurations (only for SDHI0 so far).

Signed-off-by: Max Filippov <max.filippov@cogentembedded.com>
[Sergei: moved *enum* declaring HPB-DMAC slave IDs from now removed <mach/dma.h>
to <mach/r8a7778.h>, removed #include <mach/dma.h> from setup-r8a7778.c, removed
SSI-related *enum* values and SSI-related data from hpb_dmae_slaves[] and
hpb_dmae_channels[], moved the comments after the element initializers of
hpb_dmae_channels[].]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-10-08 09:27:21 +09:00
Guennadi Liakhovetski
3794c16634 ARM: shmobile: r8a73a4: add a DMAC platform device and clock for it
Add a DMAC platform device and clock definitions for it on r8a73a4.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-10-08 09:27:21 +09:00
Simon Horman
8843c9d430 Renesas ARM based SoC SMP updates for v3.13
* Add CPU notifier based SCU boot vector code
   - Use on emev2, r8a7779 and sh73a0 SoCs
   - Remove now unused shmobile_smp_scu_boot_secondary()
 * Add shared APMU SMP support code
   - Use to add SMP support for r8a7790 SoC
 * Introduce shmobile_boot_size
 * Expose shmobile_invalidate_start()
 * Introduce shmobile_smp_cpu_disable()
   - Use on sh73a0 SoC
   - Remove now unused shmobile_smp_init_cpus()
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Merge tag 'renesas-smp-for-v3.13' into soc2-base

Renesas ARM based SoC SMP updates for v3.13

* Add CPU notifier based SCU boot vector code
  - Use on emev2, r8a7779 and sh73a0 SoCs
  - Remove now unused shmobile_smp_scu_boot_secondary()
* Add shared APMU SMP support code
  - Use to add SMP support for r8a7790 SoC
* Introduce shmobile_boot_size
* Expose shmobile_invalidate_start()
* Introduce shmobile_smp_cpu_disable()
  - Use on sh73a0 SoC
  - Remove now unused shmobile_smp_init_cpus()
2013-10-08 09:26:53 +09:00
Magnus Damm
43651b15de ARM: shmobile: Include CA7 cores in APMU table
Add information to the shared APMU code regarding
the APMU instance used to control the CA7 cores.

This can be used on r8a7790 and r8a73a4, but should
most likely be converted to DT in the future.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 17:56:11 +09:00
Magnus Damm
ee490bcc4f ARM: shmobile: Extend APMU code to allow single cluster only
Extend the APMU code with a check to only allow boot
of CPU cores that sit in the same cluster as CPU0.

This makes it possible for people to use the r8a790
CA7 boot mode with CA7-cores only. The default CA15
boot mode will enable CA15 cores only. This is an
intentional software limitation to cope with lacking
scheduler support.

By removing this patch it is possible to run all 8 cores
in parallel, but this is not recommended without out of tree
scheduler modfications or custom user space code to control
the CPU affinitiy.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 17:56:11 +09:00
Magnus Damm
e4550216ef ARM: shmobile: Remove shmobile_smp_scu_boot_secondary()
Remove shmobile_smp_scu_boot_secondary() since
it is no longer used. CPU boot vector setup is
instead handled by CPU notifiers.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 17:56:10 +09:00
Magnus Damm
deb4928ea3 ARM: shmobile: Let r8a7779 rely on SCU CPU notifier
Now when CPU notifiers are used for SCU boot vector
setup shmobile_smp_scu_boot_secondary() is no longer
needed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 17:56:10 +09:00
Magnus Damm
344c62f7a6 ARM: shmobile: Let EMEV2 rely on SCU CPU notifier
Now when CPU notifiers are used for SCU boot vector
setup shmobile_smp_scu_boot_secondary() is no longer
needed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 17:56:09 +09:00
Magnus Damm
344bc8b0c8 ARM: shmobile: Let sh73a0 rely on SCU CPU notifier
Now when CPU notifiers are used for SCU boot vector
setup shmobile_smp_scu_boot_secondary() is no longer
needed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 17:56:09 +09:00
Magnus Damm
916d6121b5 ARM: shmobile: Add CPU notifier based SCU boot vector code
Add CPU notifiers for the shared mach-shmobile SCU code
to allow removal of the shared SCU boot_secondary code.

Regarding notifiers, at CPU_UP_PREPARE time the SMP boot
vector is initialized so secondary CPU cores can boot.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 17:56:08 +09:00
Magnus Damm
ad09cb8381 ARM: shmobile: Add r8a7790 SMP support using APMU code
Add r8a7790 SMP support using the shared APMU code. To enable
SMP the r8a7790 specific DTS needs to be updated to include
CPU cores, and this is happening in a separate patch.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 17:56:03 +09:00
Magnus Damm
a112de8c7a ARM: shmobile: Shared APMU SMP support code without DT
Introduce shared APMU SMP code for mach-shmobile. Both SMP boot up
and CPU Hotplug is supported. This version does not use DT but
if needed this will be added as an incremental feature patch.

The code is designed around CONFIG_NR_CPUS and should in theory support
any number of APMUs, however due to the current DT-less static design
only a single APMU is supported.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 17:55:53 +09:00
Kuninori Morimoto
f39d35fcc2 ARM: shmobile: r8a7778: add usb phy power control function
USB phy initialisation function is needed from not only
USB Host but also USB Function too.
This patch adds usb phy common control function.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 16:11:23 +09:00
Kuninori Morimoto
84ea52885e ARM: shmobile: r8a7778: add USBHS clock
This patch adds USBHS clock for renesas_usbhs driver

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 16:11:23 +09:00
Magnus Damm
1bebd72a71 ARM: shmobile: r8a7791 CMT support
Add r8a7791 CMT support via channel 0 of CMT0. At this
point the CMT is used for clock event operation, but in
the future the arch timer will be the main timer and the
CMT will be used for deep sleep wake up only.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit a7663b88280d00359715817620798e99d54d401c)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 16:11:20 +09:00
Yoshikazu Fujikawa
e6491d08ed ARM: shmobile: r8a7791 SCIF support
Add SCIF serial port support to the r8a7791 SoC by
adding platform devices for SCIFA0 -> SCIFA5 as well
as SCIFB0 -> SCIFB2 and SCIF0 -> SCIF5 together with
clock bindings. DT device description is excluded at
this point since such bindings are still under
development.

Signed-off-by: Yoshikazu Fujikawa <yoshikazu.fujikawa.ue@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Forward ported to upstream, dropped holes in enum]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 16:11:16 +09:00
Hisashi Nakamura
0d0771ab2b ARM: shmobile: Initial r8a7791 SoC support
Add initial support for the r8a7791 SoC including:
 - Single Cortex-A15 CPU Core
 - GIC

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Forward ported to upstream, dropped not-yet-ready code]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-30 16:11:12 +09:00
Magnus Damm
a84a5ab73f ARM: shmobile: Introduce shmobile_boot_size
Introduce shmobile_boot_size that can be used by
future SMP code to determine the size of the boot
code that needs to be copied to internal SRAM.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-20 17:47:31 -07:00
Magnus Damm
87a08ca0f7 ARM: shmobile: Expose shmobile_invalidate_start()
Expose shmobile_invalidate_start() in common.h for
mach-shmobile. This function will be used for boot of
secondary processors on future non-SCU SMP platforms.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-20 17:47:31 -07:00
Magnus Damm
c4e1e64d2b ARM: shmobile: Remove unused shmobile_smp_init_cpus()
Remove shmobile_smp_init_cpus() since all SMP platforms in
mach-shmobile now rely on DT for CPU core description instead
of for instance determining number of cores from the SCU.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-20 17:47:31 -07:00
Magnus Damm
a3b142a1a0 ARM: shmobile: Use shmobile_smp_cpu_disable() on sh73a0
Use shmobile_smp_cpu_disable() on sh73a0 since it
allows CPU Hotplug of any CPU.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-20 17:47:30 -07:00
Magnus Damm
5c4dfcd663 ARM: shmobile: Introduce shmobile_smp_cpu_disable()
Introduce the shared CPU Hotplug function shmobile_smp_cpu_disable()
for mach-shmobile. It is useful for the case when all CPUs may be
hotplugged, including CPU 0.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-20 17:47:30 -07:00
Kuninori Morimoto
a93c2aaf18 ARM: shmobile: r8a7778: add SSI/SRU clock support
Add a platform clock for the r8a7778 SRU/SSI sound.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-19 14:39:06 -07:00
Laurent Pinchart
9d8907c4e8 ARM: shmobile: r8a7790: Add DU and LVDS clocks
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-19 14:39:05 -07:00
Laurent Pinchart
acf47ee741 ARM: shmobile: r8a7779: Rename DU device in clock lookups list
The DU device will be called rcar-du-r8a7779. Rename the clock lookup
entry accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-19 14:39:05 -07:00
Laurent Pinchart
cde214a890 ARM: shmobile: r8a7790: Constify platform data and resources
Platform data and resources for core devices are kmemdup()ed when the
corresponding devices are registered and can thus be declared as const.
Do so.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-19 14:33:44 -07:00
Magnus Damm
0efd7faa6c ARM: shmobile: Rename to r8a7790_init_early()
Rename r8a7790_init_delay() into r8a7790_init_early()
to make the function name show that more than just
delay setup may happen in the future.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-19 14:33:44 -07:00
Magnus Damm
0750a54592 ARM: shmobile: Rename to r8a73a4_init_early()
Rename r8a73a4_init_delay() into r8a73a4_init_early()
to make the function name show that more than just
delay setup may happen in the future.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-09-19 14:33:44 -07:00
Linus Torvalds
a4ae54f90e Merge branch 'timers/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer code update from Thomas Gleixner:
 - armada SoC clocksource overhaul with a trivial merge conflict
 - Minor improvements to various SoC clocksource drivers

* 'timers/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: armada-370-xp: Add detailed clock requirements in devicetree binding
  clocksource: armada-370-xp: Get reference fixed-clock by name
  clocksource: armada-370-xp: Replace WARN_ON with BUG_ON
  clocksource: armada-370-xp: Fix device-tree binding
  clocksource: armada-370-xp: Introduce new compatibles
  clocksource: armada-370-xp: Use CLOCKSOURCE_OF_DECLARE
  clocksource: armada-370-xp: Simplify TIMER_CTRL register access
  clocksource: armada-370-xp: Use BIT()
  ARM: timer-sp: Set dynamic irq affinity
  ARM: nomadik: add dynamic irq flag to the timer
  clocksource: sh_cmt: 32-bit control register support
  clocksource: em_sti: Convert to devm_* managed helpers
2013-09-16 16:10:26 -04:00
Martin Schwidefsky
0244ad004a Remove GENERIC_HARDIRQ config option
After the last architecture switched to generic hard irqs the config
options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code
for !CONFIG_GENERIC_HARDIRQS can be removed.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-09-13 15:09:52 +02:00
Linus Torvalds
ac4de9543a Merge branch 'akpm' (patches from Andrew Morton)
Merge more patches from Andrew Morton:
 "The rest of MM.  Plus one misc cleanup"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (35 commits)
  mm/Kconfig: add MMU dependency for MIGRATION.
  kernel: replace strict_strto*() with kstrto*()
  mm, thp: count thp_fault_fallback anytime thp fault fails
  thp: consolidate code between handle_mm_fault() and do_huge_pmd_anonymous_page()
  thp: do_huge_pmd_anonymous_page() cleanup
  thp: move maybe_pmd_mkwrite() out of mk_huge_pmd()
  mm: cleanup add_to_page_cache_locked()
  thp: account anon transparent huge pages into NR_ANON_PAGES
  truncate: drop 'oldsize' truncate_pagecache() parameter
  mm: make lru_add_drain_all() selective
  memcg: document cgroup dirty/writeback memory statistics
  memcg: add per cgroup writeback pages accounting
  memcg: check for proper lock held in mem_cgroup_update_page_stat
  memcg: remove MEMCG_NR_FILE_MAPPED
  memcg: reduce function dereference
  memcg: avoid overflow caused by PAGE_ALIGN
  memcg: rename RESOURCE_MAX to RES_COUNTER_MAX
  memcg: correct RESOURCE_MAX to ULLONG_MAX
  mm: memcg: do not trap chargers with full callstack on OOM
  mm: memcg: rework and document OOM waiting and wakeup
  ...
2013-09-12 15:44:27 -07:00
Johannes Weiner
759496ba64 arch: mm: pass userspace fault flag to generic fault handler
Unlike global OOM handling, memory cgroup code will invoke the OOM killer
in any OOM situation because it has no way of telling faults occuring in
kernel context - which could be handled more gracefully - from
user-triggered faults.

Pass a flag that identifies faults originating in user space from the
architecture-specific fault handlers to generic code so that memcg OOM
handling can be improved.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: azurIt <azurit@pobox.sk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-12 15:38:01 -07:00
Johannes Weiner
871341023c arch: mm: do not invoke OOM killer on kernel fault OOM
Kernel faults are expected to handle OOM conditions gracefully (gup,
uaccess etc.), so they should never invoke the OOM killer.  Reserve this
for faults triggered in user context when it is the only option.

Most architectures already do this, fix up the remaining few.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: azurIt <azurit@pobox.sk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-12 15:38:01 -07:00
Linus Torvalds
3cc69b638e ARM: SoC fixes for 3.12
A small batch of fixes that have trickled in over the last week of the
 merge window.
 
 Also included are few small devicetree updates for sunxi, since it
 enables me to use one of their newer boards (cubieboard2) for additional
 test coverage. The support for that SoC is new for 3.12, so there's no
 exposure to new regressions due to it.
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Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Olof Johansson:
 "A small batch of fixes that have trickled in over the last week of the
  merge window.

  Also included are few small devicetree updates for sunxi, since it
  enables me to use one of their newer boards (cubieboard2) for
  additional test coverage.  The support for that SoC is new for 3.12,
  so there's no exposure to new regressions due to it"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: dts: sun7i: olinuxino-micro: Enable the EMAC
  ARM: dts: sun7i: cubieboard2: Enable the EMAC
  ARM: dts: sun7i: Add the muxing options for the EMAC
  ARM: dts: sun7i: Enable the Ethernet in the A20
  i2c: davinci: Fix bad dev_get_platdata() conversion
  ARM: vexpress: allow dcscb and tc2_pm in a combined ARMv6+v7 build
  ARM: shmobile: lager: Do not use register_type field of struct sh_eth_plat_data
  ARM: pxa: ssp: Check return values from phandle lookups
  ARM: PCI: versatile: Fix SMAP register offsets
  ARM: PCI: versatile: Fix PCI I/O
  ARM: PCI: versatile: Fix map_irq function to match hardware
  ARM: ep93xx: Don't use modem interface on the second UART
  ARM: shmobile: r8a7779: Update early timer initialisation order
2013-09-12 13:59:31 -07:00
Linus Torvalds
0e6a1fb116 Merge branch 'fixes' of git://git.linaro.org/people/rmk/linux-arm
Pull ARM fixes from Russell King:
 "Just two fixes here - one for the recent addition of Neon stuff which
  causes problems when this is built as a module.  The other was one
  spotted by Olof with the fixed-HZ stuff.

  Last patch (which is at the very top) is not a fix per-se, but an
  almost-end-of-merge window sorting of the select symbols in
  arch/arm/Kconfig to keep them as akpm would like to reduce unnecessary
  conflicts.  I've also taken the liberty this time to add a comment at
  the end to discourage the endless "add the next select to the bottom
  of a nicely sorted list" syndrome"

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
  ARM: sort arch/arm/Kconfig
  ARM: fix forced-HZ values
  ARM: 7835/2: fix modular build of xor_blocks() with NEON enabled
2013-09-12 13:58:35 -07:00
Russell King
171b3f0da7 ARM: sort arch/arm/Kconfig
Keep arch/arm/Kconfig select statements sorted alphabetically.  I've
added a comment at the bottom of the main bank for CONFIG_ARM to this
effect so hopefully this will keep things more in order.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-09-12 21:24:42 +01:00
Maxime Ripard
f7ec00b3a5 ARM: dts: sun7i: olinuxino-micro: Enable the EMAC
The A20-olinuxino-micro has the EMAC wired in. Enable it in the DT so
that we can use it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-09-12 12:22:48 -07:00
Maxime Ripard
0547433761 ARM: dts: sun7i: cubieboard2: Enable the EMAC
The Cubieboard2, just like its A10 counterpart, has the Ethernet wired
in. Enable it in the DT.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-09-12 12:22:43 -07:00
Maxime Ripard
756084c50c ARM: dts: sun7i: Add the muxing options for the EMAC
The A20 has several muxing options for the EMAC. Yet, the currently
supported boards only use one set of them. Add that pin set to the DTSI.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-09-12 12:22:39 -07:00
Maxime Ripard
2e804d03d2 ARM: dts: sun7i: Enable the Ethernet in the A20
The Allwinner A20 SoC also have the EMAC found on the A10 and A10s.
Enable the support for it in the DTSI.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-09-12 12:22:32 -07:00
Naoya Horiguchi
83467efbdb mm: migrate: check movability of hugepage in unmap_and_move_huge_page()
Currently hugepage migration works well only for pmd-based hugepages
(mainly due to lack of testing,) so we had better not enable migration of
other levels of hugepages until we are ready for it.

Some users of hugepage migration (mbind, move_pages, and migrate_pages) do
page table walk and check pud/pmd_huge() there, so they are safe.  But the
other users (softoffline and memory hotremove) don't do this, so without
this patch they can try to migrate unexpected types of hugepages.

To prevent this, we introduce hugepage_migration_support() as an
architecture dependent check of whether hugepage are implemented on a pmd
basis or not.  And on some architecture multiple sizes of hugepages are
available, so hugepage_migration_support() also checks hugepage size.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Rik van Riel <riel@redhat.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-09-11 15:57:49 -07:00
Linus Torvalds
a60d4b9874 Bug-fixes:
- Boot on ARM without using Xen unconditionally
  - On Xen ARM don't run cpuidle/cpufreq
  - Fix regression in balloon driver, preempt count warnings
  - Fixes to make PVHVM able to use pv ticketlock.
  - Revert Xen PVHVM disabling pv ticketlock (aka, re-enable pv ticketlocks)
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Merge tag 'stable/for-linus-3.12-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull Xen bug-fixes from Konrad Rzeszutek Wilk:
 "This pull I usually do after rc1 is out but because we have a nice
  amount of fixes, some bootup related fixes for ARM, and it is early in
  the cycle we figured to do it now to help with tracking of potential
  regressions.

  The simple ones are the ARM ones - one of the patches fell through the
  cracks, other fixes a bootup issue (unconditionally using Xen
  functions).  Then a fix for a regression causing preempt count being
  off (patch causing this went in v3.12).

  Lastly are the fixes to make Xen PVHVM guests use PV ticketlocks (Xen
  PV already does).

  The enablement of that was supposed to be part of the x86 spinlock
  merge in commit 816434ec4a ("The biggest change here are
  paravirtualized ticket spinlocks (PV spinlocks), which bring a nice
  speedup on various benchmarks...") but unfortunatly it would cause
  hang when booting Xen PVHVM guests.  Yours truly got all of the bugs
  fixed last week and they (six of them) are included in this pull.

  Bug-fixes:
   - Boot on ARM without using Xen unconditionally
   - On Xen ARM don't run cpuidle/cpufreq
   - Fix regression in balloon driver, preempt count warnings
   - Fixes to make PVHVM able to use pv ticketlock.
   - Revert Xen PVHVM disabling pv ticketlock (aka, re-enable pv ticketlocks)"

* tag 'stable/for-linus-3.12-rc0-tag-two' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/spinlock: Don't use __initdate for xen_pv_spin
  Revert "xen/spinlock: Disable IRQ spinlock (PV) allocation on PVHVM"
  xen/spinlock: Don't setup xen spinlock IPI kicker if disabled.
  xen/smp: Update pv_lock_ops functions before alternative code starts under PVHVM
  xen/spinlock: We don't need the old structure anymore
  xen/spinlock: Fix locking path engaging too soon under PVHVM.
  xen/arm: disable cpuidle and cpufreq when linux is running as dom0
  xen/p2m: Don't call get_balloon_scratch_page() twice, keep interrupts disabled for multicalls
  ARM: xen: only set pm function ptrs for Xen guests
2013-09-10 20:07:04 -07:00
Olof Johansson
364e751787 Merge tag 'ep93xx-fixes-for-3.12' of git://github.com/RyanMallon/linux-ep93xx into fixes
From Ryan Mallon, a fix for ep93xx.

* tag 'ep93xx-fixes-for-3.12' of git://github.com/RyanMallon/linux-ep93xx:
  ARM: ep93xx: Don't use modem interface on the second UART

Signed-off-by: Olof Johansson <olof@lixom.net>
2013-09-10 19:17:54 -07:00
Russell King
47d846827e ARM: fix forced-HZ values
Olof Johansson reports that the tests against HZ_FIXED seem
non-functional.  Fix this by using '0' as a sentinel for "not
specified" and test against that instead.

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-09-10 23:47:55 +01:00
Linus Torvalds
31f7c3a688 Device tree core updates for v3.12
Generally minor changes. A bunch of bug fixes, particularly for
 initialization and some refactoring. Most notable change if feeding the
 entire flattened tree into the random pool at boot. May not be
 significant, but shouldn't hurt either.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux

Pull device tree core updates from Grant Likely:
 "Generally minor changes.  A bunch of bug fixes, particularly for
  initialization and some refactoring.  Most notable change if feeding
  the entire flattened tree into the random pool at boot.  May not be
  significant, but shouldn't hurt either"

Tim Bird questions whether the boot time cost of the random feeding may
be noticeable.  And "add_device_randomness()" is definitely not some
speed deamon of a function.

* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
  of/platform: add error reporting to of_amba_device_create()
  irq/of: Fix comment typo for irq_of_parse_and_map
  of: Feed entire flattened device tree into the random pool
  of/fdt: Clean up casting in unflattening path
  of/fdt: Remove duplicate memory clearing on FDT unflattening
  gpio: implement gpio-ranges binding document fix
  of: call __of_parse_phandle_with_args from of_parse_phandle
  of: introduce of_parse_phandle_with_fixed_args
  of: move of_parse_phandle()
  of: move documentation of of_parse_phandle_with_args
  of: Fix missing memory initialization on FDT unflattening
  of: consolidate definition of early_init_dt_alloc_memory_arch()
  of: Make of_get_phy_mode() return int i.s.o. const int
  include: dt-binding: input: create a DT header defining key codes.
  of/platform: Staticize of_platform_device_create_pdata()
  of: Specify initrd location using 64-bit
  dt: Typo fix
  OF: make of_property_for_each_{u32|string}() use parameters if OF is not enabled
2013-09-10 13:53:52 -07:00
Linus Torvalds
ec5b103ecf Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul:
 "This pull brings:
   - Andy's DW driver updates
   - Guennadi's sh driver updates
   - Pl08x driver fixes from Tomasz & Alban
   - Improvements to mmp_pdma by Daniel
   - TI EDMA fixes by Joel
   - New drivers:
     - Hisilicon k3dma driver
     - Renesas rcar dma driver
  - New API for publishing slave driver capablities
  - Various fixes across the subsystem by Andy, Jingoo, Sachin etc..."

* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (94 commits)
  dma: edma: Remove limits on number of slots
  dma: edma: Leave linked to Null slot instead of DUMMY slot
  dma: edma: Find missed events and issue them
  ARM: edma: Add function to manually trigger an EDMA channel
  dma: edma: Write out and handle MAX_NR_SG at a given time
  dma: edma: Setup parameters to DMA MAX_NR_SG at a time
  dmaengine: pl330: use dma_set_max_seg_size to set the sg limit
  dmaengine: dma_slave_caps: remove sg entries
  dma: replace devm_request_and_ioremap by devm_ioremap_resource
  dma: ste_dma40: Fix potential null pointer dereference
  dma: ste_dma40: Remove duplicate const
  dma: imx-dma: Remove redundant NULL check
  dma: dmagengine: fix function names in comments
  dma: add driver for R-Car HPB-DMAC
  dma: k3dma: use devm_ioremap_resource() instead of devm_request_and_ioremap()
  dma: imx-sdma: Staticize sdma_driver_data structures
  pch_dma: Add MODULE_DEVICE_TABLE
  dmaengine: PL08x: Add cyclic transfer support
  dmaengine: PL08x: Fix reading the byte count in cctl
  dmaengine: PL08x: Add support for different maximum transfer size
  ...
2013-09-10 13:37:36 -07:00
Linus Torvalds
d0048f0b91 MMC highlights for 3.12:
Core:
  - Support Allocation Units 8MB-64MB in SD3.0, previous max was 4MB.
  - The slot-gpio helper can now handle GPIO debouncing card-detect.
  - Read supported voltages from DT "voltage-ranges" property.
 
 Drivers:
  - dw_mmc: Add support for ARC architecture, and support exynos5420.
  - mmc_spi: Support CD/RO GPIOs.
  - sh_mobile_sdhi: Add compatibility for more Renesas SoCs.
  - sh_mmcif: Add DT support for DMA channels.
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Merge tag 'mmc-updates-for-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc

Pull MMC updates from Chris Ball:
 "MMC highlights for 3.12:

  Core:
   - Support Allocation Units 8MB-64MB in SD3.0, previous max was 4MB.
   - The slot-gpio helper can now handle GPIO debouncing card-detect.
   - Read supported voltages from DT "voltage-ranges" property.

  Drivers:
   - dw_mmc: Add support for ARC architecture, and support exynos5420.
   - mmc_spi: Support CD/RO GPIOs.
   - sh_mobile_sdhi: Add compatibility for more Renesas SoCs.
   - sh_mmcif: Add DT support for DMA channels"

* tag 'mmc-updates-for-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (50 commits)
  Revert "mmc: tmio-mmc: Remove .set_pwr() callback from platform data"
  mmc: dw_mmc: Add support for ARC
  mmc: sdhci-s3c: initialize host->quirks2 for using quirks2
  mmc: sdhci-s3c: fix the wrong register value, when clock is disabled
  mmc: esdhc: add support to get voltage from device-tree
  mmc: sdhci: get voltage from sdhc host
  mmc: core: parse voltage from device-tree
  mmc: omap_hsmmc: use the generic config for omap2plus devices
  mmc: omap_hsmmc: clear status flags before starting a new command
  mmc: dw_mmc: exynos: Add a new compatible string for exynos5420
  mmc: sh_mmcif: revision-specific CLK_CTRL2 handling
  mmc: sh_mmcif: revision-specific Command Completion Signal handling
  mmc: sh_mmcif: add support for Device Tree DMA bindings
  mmc: sh_mmcif: move header include from header into .c
  mmc: SDHI: add DT compatibility strings for further SoCs
  mmc: dw_mmc-pci: enable bus-mastering mode
  mmc: dw_mmc-pci: get resources from a proper BAR
  mmc: tmio-mmc: Remove .set_pwr() callback from platform data
  mmc: tmio-mmc: Remove .get_cd() callback from platform data
  mmc: sh_mobile_sdhi: Remove .set_pwr() callback from platform data
  ...
2013-09-10 13:33:09 -07:00