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506,942 commits

Author SHA1 Message Date
Olof Johansson
eb7e855b41 drivers: Add reset driver for SOCFPGA
Add a reset driver for the SOCFPGA platform.
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Merge tag 'socfpga-driver-update-for-3.16' of git://git.rocketboards.org/linux-socfpga-next into next/drivers

Merge "drivers: Add reset driver for SOCFPGA" from Dinh Nguyen:

Add a reset driver for the SOCFPGA platform.

* tag 'socfpga-driver-update-for-3.16' of git://git.rocketboards.org/linux-socfpga-next:
  reset: add driver for socfpga

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 15:13:33 -07:00
Santosh Shilimkar
92ea637ede of: introduce of_dma_is_coherent() helper
The of_dma_is_coherent() helper parses the given DT device
node to see if the "dma-coherent" property is supported and
returns true or false accordingly.

If the arch is always coherent or always noncoherent, then the default
DMA ops has to be specified accordingly.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
2014-05-05 18:11:13 -04:00
Grygorii Strashko
18308c9472 of: introduce of_dma_get_range() helper
The of_dma_get_range() allows to find "dma-range" property for
the specified device and parse it.
 dma-ranges format:
   DMA addr (dma_addr)          : naddr cells
   CPU addr (phys_addr_t)       : pna cells
   size                         : nsize cells

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-05 18:11:13 -04:00
Santosh Shilimkar
8febcaa2aa device: introduce per device dma_pfn_offset
On few architectures, there are few restrictions on DMAble area of system
RAM. That also means that devices needs to know about this restrictions so
that the dma_masks can be updated accordingly and dma address translation
helpers can add/subtract the dma offset.

In most of cases DMA addresses can be performed using offset value of
Bus address space relatively to physical address space as following:

PFN->DMA:  __pfn_to_phys(pfn + [-]dma_pfn_offset)
DMA->PFN:  __phys_to_pfn(dma_addr) + [-]dma_pfn_offset

So we introduce per device dma_pfn_offset which can be popullated
by architecture init code while creating the devices.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-05 18:11:13 -04:00
Thomas Petazzoni
55fc5ecd6c ARM: configs: add CONFIG_MMC_SDHCI_PXAV3 to the multi_v7_defconfig
The Marvell Armada 38x platform has a SDHCI interface managed by the
sdhci-pxav3 MMC host driver. It therefore makes sense to enable this
driver in multi_v7_defconfig, which supports the Armada 38x platform.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 14:53:01 -07:00
Dave Chinner
8275cdd0e7 xfs: remote attribute overwrite causes transaction overrun
Commit e461fcb ("xfs: remote attribute lookups require the value
length") passes the remote attribute length in the xfs_da_args
structure on lookup so that CRC calculations and validity checking
can be performed correctly by related code. This, unfortunately has
the side effect of changing the args->valuelen parameter in cases
where it shouldn't.

That is, when we replace a remote attribute, the incoming
replacement stores the value and length in args->value and
args->valuelen, but then the lookup which finds the existing remote
attribute overwrites args->valuelen with the length of the remote
attribute being replaced. Hence when we go to create the new
attribute, we create it of the size of the existing remote
attribute, not the size it is supposed to be. When the new attribute
is much smaller than the old attribute, this results in a
transaction overrun and an ASSERT() failure on a debug kernel:

XFS: Assertion failed: tp->t_blk_res_used <= tp->t_blk_res, file: fs/xfs/xfs_trans.c, line: 331

Fix this by keeping the remote attribute value length separate to
the attribute value length in the xfs_da_args structure. The enables
us to pass the length of the remote attribute to be removed without
overwriting the new attribute's length.

Also, ensure that when we save remote block contexts for a later
rename we zero the original state variables so that we don't confuse
the state of the attribute to be removes with the state of the new
attribute that we just added. [Spotted by Brain Foster.]

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-05-06 07:37:31 +10:00
Brian Foster
d540e43b0a xfs: initialize default acls for ->tmpfile()
The current tmpfile handler does not initialize default ACLs. Doing so
within xfs_vn_tmpfile() makes it roughly equivalent to xfs_vn_mknod(),
which is already used as a common create handler.

xfs_vn_mknod() does not currently have a mechanism to determine whether
to link the file into the namespace. Therefore, further abstract
xfs_vn_mknod() into a new xfs_generic_create() handler with a tmpfile
parameter. This new handler calls xfs_create_tmpfile() and d_tmpfile()
on the dentry when called via ->tmpfile().

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-05-06 07:34:28 +10:00
Olof Johansson
7de24debea Renesas ARM Based SoC DT Updates for v3.16
r8a7791 (R-Car M2) and r8a7790 (R-Car H2) SoCs
 * Add MSIOF nodes and aliases
 * Correct I2C clock parents
 
 r8a7791 (R-Car M2) SoC
 * Add EHCI MSTP clock
 
 r8a7791 (R-Car M2) based Koelsch and r8a7790 (R-Car H2) based Lager boards
 * Add MSIOF nodes
 * Add gpio-keys support for SW2
 * Enable I2C
 * Enable Quad SPI transfers for the SPI FLASH
 * Rename and lable spi to qspi, add spi0 alias
 * Set ethernet PHY LED mode
 
 r8a7779 (R-Car H1) and r8a7778 (R-Car M2) SoCs
 * Improve and correct HSPI nodes
 
 r8a7778 (R-Car M2) based Bock-W board
 * Add SPI FLASH
 
 r8a7740 (R-Mobile A1) SoC
 * Use r8a7740 suffix for i2c, mmcif, fsi2 compat strings
 
 r8a7740 (R-Mobile A1) based Armadillo800 EVA board
 * Enable RTC
 * Use KEY_* macros for gpio-keys
 
 EMEV2 (Emma Mobile EV2) based kzm9g board
 * Use KEY_* macros for gpio-keys
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Merge tag 'renesas-dt-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt

Merge "Renesas ARM Based SoC DT Updates for v3.16" from Simon Horman:

r8a7791 (R-Car M2) and r8a7790 (R-Car H2) SoCs
* Add MSIOF nodes and aliases
* Correct I2C clock parents

r8a7791 (R-Car M2) SoC
* Add EHCI MSTP clock

r8a7791 (R-Car M2) based Koelsch and r8a7790 (R-Car H2) based Lager boards
* Add MSIOF nodes
* Add gpio-keys support for SW2
* Enable I2C
* Enable Quad SPI transfers for the SPI FLASH
* Rename and lable spi to qspi, add spi0 alias
* Set ethernet PHY LED mode

r8a7779 (R-Car H1) and r8a7778 (R-Car M2) SoCs
* Improve and correct HSPI nodes

r8a7778 (R-Car M2) based Bock-W board
* Add SPI FLASH

r8a7740 (R-Mobile A1) SoC
* Use r8a7740 suffix for i2c, mmcif, fsi2 compat strings

r8a7740 (R-Mobile A1) based Armadillo800 EVA board
* Enable RTC
* Use KEY_* macros for gpio-keys

EMEV2 (Emma Mobile EV2) based kzm9g board
* Use KEY_* macros for gpio-keys

* tag 'renesas-dt-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (33 commits)
  ARM: shmobile: armadillo-reference dts: Seiko Instruments, Inc is "sii"
  ARM: shmobile: lager dts: Enable Quad SPI transfers for the SPI FLASH
  ARM: shmobile: koelsch dts: Enable Quad SPI transfers for the SPI FLASH
  ARM: shmobile: r8a7790: add IIC(B) cores to dtsi
  ARM: shmobile: r8a7790: add IIC(B) clocks to dtsi
  ARM: shmobile: r8a7790: add IIC0-2 clock macros
  ARM: shmobile: r8a7791: Fix the I2C clocks parents in DT
  ARM: shmobile: r8a7790: Fix the I2C clocks parents in DT
  ARM: shmobile: lager: Correct setting of ethernet PHY LED mode
  ARM: shmobile: armadillo-reference dts: enable RTC
  ARM: shmobile: r8a7791: Add EHCI MSTP clock
  ARM: shmobile: Use r8a7740 suffix for i2c, mmcif, fsi2 compat strings
  ARM: shmobile: koelsch: activate i2c6 bus
  ARM: shmobile: koelsch: make i2c2-pfc node unique
  ARM: shmobile: r8a7791: add IIC(B) cores to dtsi
  ARM: shmobile: r8a7791: add IIC(B) clocks to dtsi
  ARM: shmobile: r8a7791: add IIC0/1 clock macros
  ARM: shmobile: kzm9g-reference dts: Use KEY_* macros for gpio-keys
  ARM: shmobile: armadillo-reference dts: Use KEY_* macros for gpio-keys
  ARM: shmobile: koelsch: Set ethernet PHY LED mode
  ...

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 14:33:48 -07:00
Olof Johansson
8df3211971 Renesas ARM Based SoC Cleanup Updates for v3.16
r8a7740 (R-Mobile A1) SoC
 * Make r8a7740_meram_workaround() __init
 * Remove unused r8a7740_add_early_devices_dt()
 
 r8a7740 (R-Mobile A1) based Armadillo800 EVA board
 * Spelling and grammar fixes
 
 sh7372 (SH-Mobile AP4) SoC
 * Call sh7372_add_early_devices() instead of open coding
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Merge tag 'renesas-cleanup-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup

Merge "Renesas ARM Based SoC Cleanup Updates for v3.16" from Simon Horman:

r8a7740 (R-Mobile A1) SoC
* Make r8a7740_meram_workaround() __init
* Remove unused r8a7740_add_early_devices_dt()

r8a7740 (R-Mobile A1) based Armadillo800 EVA board
* Spelling and grammar fixes

sh7372 (SH-Mobile AP4) SoC
* Call sh7372_add_early_devices() instead of open coding

* tag 'renesas-cleanup-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7740: Make r8a7740_meram_workaround() __init
  ARM: shmobile: sh7372: Call sh7372_add_early_devices() instead of open coding
  ARM: shmobile: r8a7740: Remove unused r8a7740_add_early_devices_dt()
  ARM: shmobile: armadillo800eva: Spelling and grammar

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 14:29:05 -07:00
David S. Miller
5a50a92784 Merge branch 'tipc-next'
Ying Xue says:

====================
tipc: purge signal handler infrastructure

When we delay some actions to be executed in asynchronous contexts,
these usually add unnecessary code complexities, and make their
behaviours unpredictable and indeterministic. Moreover, as the signal
handler infrastructure is first stopped when tipc module is removed,
this may cause some potential risks for us. For instance, although
signal handler is already stopped, some tipc components still submit
signal requests to signal handler infrastructure, which may lead to
some resources not to be released or freed correctly.

So the series aims to convert all actions being performed in tasklet
context asynchronously with interface provided by signal handler
infrastructure to be executed synchronously, thereby deleting the
whole infrastructure of signal handler.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:54 -04:00
Ying Xue
52ff872055 tipc: purge signal handler infrastructure
In the previous commits of this series, we removed all asynchronous
actions which were based on the tasklet handler - "tipc_k_signal()".

So the moment has now come when we can completely remove the tasklet
handler infrastructure. That is done with this commit.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:45 -04:00
Ying Xue
3f5a12bd9f tipc: avoid to asynchronously reset all links
Postpone the actions of resetting all links until after bclink
lock is released, avoiding to asynchronously reset all links.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:45 -04:00
Ying Xue
eb8b00f5f2 tipc: convert allocations of global variables associated with bclink
Convert allocations of global variables associated with bclink from
static way to dynamical way for the convenience of bclink instance
initialisation. Meanwhile, this also helps TIPC support name space
in the future easily.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:45 -04:00
Ying Xue
d69afc90b8 tipc: define new functions to operate bc_lock
As we are going to do more jobs when bc_lock is released, the two
operations of holding/releasing the lock should be encapsulated with
functions. In addition, we move bc_lock spin lock into tipc_bclink
structure avoiding to define the global variable.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:44 -04:00
Ying Xue
ca0c42732c tipc: avoid to asynchronously deliver name tables to peer node
Postpone the actions of delivering name tables until after node
lock is released, avoiding to do it under asynchronous context.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:44 -04:00
Ying Xue
9d56194968 tipc: remove TIPC_NAMES_GONE node flag
Since previously what all publications pertaining to the lost node
were removed from name table was finished in tasklet context
asynchronously, we need to TIPC_NAMES_GONE flag indicating whether
the node cleanup work is finished or not. But now as the cleanup work
has been finished when node lock is released, the flag becomes
meaningless for us.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:44 -04:00
Ying Xue
9db9fdd198 tipc: avoid to asynchronously notify subscriptions
Postpone the actions of notifying subscriptions until after node lock
is released, avoiding to asynchronously execute registered handlers
when node is lost.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:44 -04:00
Ying Xue
10f465c496 tipc: rename setup_blocked variable of node struct to flags
Rename setup_blocked variable of node struct to a more common
name called "flags", which will be used to represent kinds of
node states.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:44 -04:00
Ying Xue
486f930ac5 tipc: adjust order of variables in tipc_node structure
Move more frequently used variables up to the head of tipc_node
structure, hopefully improving a bit performance.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:44 -04:00
Ying Xue
5356f3d7d4 tipc: always use tipc_node_lock() to hold node lock
Although we obtain node lock with tipc_node_lock() in most time, there
are still places where we directly use native spin lock interface
to grab node lock. But as we will do more jobs in the future when node
lock is released, we should ensure that tipc_node_lock() is always
called when node lock is taken.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:26:43 -04:00
Olof Johansson
186a73dc9a Several mach kconfig clean-ups of redundant selects
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Merge tag 'kconfig-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux into next/cleanup

Merge Kconfig cleanups from Rob Herring:

Several mach kconfig clean-ups of redundant selects

* tag 'kconfig-cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  ARM: qcom: clean-up unneeded kconfig selects
  ARM: bcm: clean-up unneeded kconfig selects
  ARM: mvebu: clean-up unneeded kconfig selects
  + Linux 3.15-rc2

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 14:18:49 -07:00
Olof Johansson
e69765527a 3.16: first DT series:
- more support for at91sam9rl and its associated EK board
 - some improvements to at91sam9g45 (ADC, TS, PWM leds)
 - addition of some missing pieces for describing audio
   of SAMA5D3-EK in DT
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Merge tag 'at91-dt' of git://github.com/at91linux/linux-at91 into next/dt

Merge "at91: DT for 3.16 #1" from Nicolas Ferre:

3.16: first DT series:
- more support for at91sam9rl and its associated EK board
- some improvements to at91sam9g45 (ADC, TS, PWM leds)
- addition of some missing pieces for describing audio
  of SAMA5D3-EK in DT

* tag 'at91-dt' of git://github.com/at91linux/linux-at91:
  ARM: at91: sama5d3: clock for ssc from rk pin
  ARM: at91: sama5d3: add the missing property
  ARM: at91: sama5d3: correct the sound compatible string
  ARM: at91: sama5d3: disable sound by default
  ARM: at91: sama5d3: add DMA property for SSC devices
  ARM: at91/dt: at91sam9m10g45ek PWM leds polarity is inversed
  ARM: at91/dt: at91sam9m10g45ek: add ADC and touchscreen support
  ARM: at91/dt: sam9g45: improve ADC/touchscreen support
  ARM: at91/dt: add peripherals to the at91sam9rlek board
  ARM: at91/dt: sam9rl: add lcd, adc, usb gadget and pwm support

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 14:15:54 -07:00
Olof Johansson
71e878fed8 Renesas ARM Based SoC Boards Updates for v3.16
r8a7791 (R-Car M2) based Koelsch board
 * Enable Quad SPI transfers for the SPI FLASH
 * Clock workarounds for Ether, I2C, MSIOF, Quad SPI and SDHI
 * Use shmobile_clk_workaround()
 
 r8a7790 (R-Car H2) based Lager board
 * Enable Quad SPI transfers for the SPI FLASH
 * Switch to use dai info for R-Car sound
 * Clock workarounds for Ether, MSIOF, MMCIF, Quad SPI and SDHI
 * Use shmobile_clk_workaround()
 
 r8a7778 (R-Car M1) based Bock-W board
 * Switch to use dai info for R-Car sound
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Merge tag 'renesas-boards-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/boards

Merge "Renesas ARM Based SoC Boards Updates for v3.16" from Simon Horman:

r8a7791 (R-Car M2) based Koelsch board
* Enable Quad SPI transfers for the SPI FLASH
* Clock workarounds for Ether, I2C, MSIOF, Quad SPI and SDHI
* Use shmobile_clk_workaround()

r8a7790 (R-Car H2) based Lager board
* Enable Quad SPI transfers for the SPI FLASH
* Switch to use dai info for R-Car sound
* Clock workarounds for Ether, MSIOF, MMCIF, Quad SPI and SDHI
* Use shmobile_clk_workaround()

r8a7778 (R-Car M1) based Bock-W board
* Switch to use dai info for R-Car sound

* tag 'renesas-boards-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: lager legacy: Enable Quad SPI transfers for the SPI FLASH
  ARM: shmobile: koelsch legacy: Enable Quad SPI transfers for the SPI FLASH
  ARM: shmobile: lager: switch to use dai info for R-Car sound
  ARM: shmobile: bockw: switch to use dai info for R-Car sound
  ARM: shmobile: bockw: remove old style audio clock
  ARM: shmobile: Add Koelsch clock workarounds for SDHI
  ARM: shmobile: Add Lager clock workarounds for SDHI and MMCIF
  ARM: shmobile: lager-reference: Work around core clock issues
  ARM: shmobile: koelsch-reference: Annotate clk_enables as __initconst
  ARM: shmobile: koelsch-reference: Work around core clock issues
  ARM: shmobile: lager: Annotate clk_names with __initconst
  ARM: shmobile: koelsch: Annotate clk_names with __initconst
  ARM: shmobile: Use shmobile_clk_workaround() on Koelsch
  ARM: shmobile: Use shmobile_clk_workaround() on Lager

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 14:14:29 -07:00
Olof Johansson
e80c9c2c2d Merge branch 'renesas/clock' into next/boards
* renesas/clock:
  ARM: shmobile: r8a7790: remove old style audio clock
  ARM: shmobile: r8a7778: remove old style audio clock
  ARM: shmobile: r8a7791: Rename VSP1_SY clocks to VSP1_S
  ARM: shmobile: r8a7790: Rename VSP1_(SY|RT) clocks to VSP1_(S|R)
  ARM: shmobile: r8a7791: Fix the I2C clocks parents in legacy code
  ARM: shmobile: r8a7790: Fix the I2C clocks parents in legacy code
  ARM: shmobile: Introduce shmobile_clk_workaround()
  ARM: shmobile: r8a7791: Use rcar_gen2_read_mode_pins() helper
2014-05-05 14:14:24 -07:00
Soren Brinkmann
c8ea5a22bd net: macb: Fix race between HW and driver
Under "heavy" RX load, the driver cannot handle the descriptors fast
enough. In detail, when a descriptor is consumed, its used flag is
cleared and once the RX budget is consumed all descriptors with a
cleared used flag are prepared to receive more data. Under load though,
the HW may constantly receive more data and use those descriptors with a
cleared used flag before they are actually prepared for next usage.

The head and tail pointers into the RX-ring should always be valid and
we can omit clearing and checking of the used flag.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:11:18 -04:00
Soren Brinkmann
504ad98df3 net: macb: Remove 'unlikely' optimization
Coverage data suggests that the unlikely case of receiving data while
the receive handler is running may not be that unlikely.
Coverage data after running iperf for a while:
    91320:  891:	work_done = bp->macbgem_ops.mog_rx(bp, budget);
    91320:  892:	if (work_done < budget) {
     2362:  893:		napi_complete(napi);
        -:  894:
        -:  895:		/* Packets received while interrupts were disabled */
     4724:  896:		status = macb_readl(bp, RSR);
     2362:  897:		if (unlikely(status)) {
      762:  898:			if (bp->caps & MACB_CAPS_ISR_CLEAR_ON_WRITE)
      762:  899:				macb_writel(bp, ISR, MACB_BIT(RCOMP));
        -:  900:			napi_reschedule(napi);
        -:  901:		} else {
     1600:  902:			macb_writel(bp, IER, MACB_RX_INT_FLAGS);
        -:  903:		}
        -:  904:	}

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:11:18 -04:00
Soren Brinkmann
02f7a34f34 net: macb: Re-enable RX interrupt only when RX is done
When data is received during the driver processing received data the
NAPI is re-scheduled. In that case the RX interrupt should not be
re-enabled.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:11:18 -04:00
Soren Brinkmann
6a027b705f net: macb: Clear interrupt flags
A few interrupt flags were not cleared in the ISR, resulting in a sytem
trapped in the ISR in cases one of those interrupts occurred. Clear all
flags to avoid such situations.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:11:18 -04:00
Soren Brinkmann
ccd6d0a910 net: macb: Pass same size to DMA_UNMAP as used for DMA_MAP
Just as commit "net: macb: DMA-unmap full rx-buffer"
(48330e08fa), pass the size that
was used for mapping the memory also to the unmap routine to
avoid warnings from the DMA_API.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 17:11:18 -04:00
Joe Perches
bd6f0bba1d cdrom: Remove unnecessary prototype for cdrom_get_disc_info
Move the function to the proper spot instead.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:06 -06:00
Joe Perches
40569c6144 cdrom: Remove unnecessary prototype for cdrom_mrw_exit
Move the function to appropriate locations instead.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:06 -06:00
Joe Perches
a803393bf8 cdrom: Remove cdrom_count_tracks prototype
Move function to proper location instead.
Fix whitespace and embedded if too.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:06 -06:00
Joe Perches
dac1c5cf44 cdrom: Remove cdrom_get_next_writeable prototype
Move the function to the right spot instead.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:06 -06:00
Joe Perches
e1e60fda48 cdrom: Remove cdrom_get_last_written prototype
Move the function instead.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:06 -06:00
Joe Perches
2e9aa08a48 cdrom: Move mmc_ioctls above cdrom_ioctl to remove unnecessary prototype
Neaten the spacing too.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:06 -06:00
Joe Perches
1237d1eecf cdrom: Remove unnecessary sanitize_format prototype
It's defined below without being called.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:06 -06:00
Joe Perches
b62d6e82a7 cdrom: Remove unnecessary check_for_audio_disc prototype
The actual static is defined below it but not used until later.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:05 -06:00
Joe Perches
82b91540ba cdrom: Remove prototype for open_for_data
Move static function to the appropriate place to remove
the now unnecessary prototype.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:05 -06:00
Joe Perches
a09c391df3 cdrom: Remove obfuscating IOCTL_IN and IOCTL_OUT macros
Macros with hidden control flow aren't nice.
Just use copy_to/from_user directly instead.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:05 -06:00
Joe Perches
e3b6b9ef61 cdrom: Remove unused CHECKAUDIO macro
It's unused, make it disappear.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:05 -06:00
Joe Perches
5944b2ce57 cdrom: convert cdinfo to cd_dbg
It's a debugging message, mark it so.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2014-05-05 14:58:05 -06:00
Alexandre Belloni
f1e9637f4b ARM: multi_v7_defconfig: Select CONFIG_MACH_BERLIN_BG2Q
Now that we support Berlin BG2Q, select CONFIG_MACH_BERLIN_BG2Q so that we can
boot BG2Q based boards like the BG2Q DMP.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 13:55:59 -07:00
Antoine Ténart
9630cc9324 ARM: multi_v7_defconfig: select CONFIG_GPIO_DWAPB
The newly integrated dwapb gpio driver handles the Berlin SoCs GPIOs.
Add this driver to the multi_v7_defconfig.

Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 13:52:38 -07:00
Olof Johansson
814789e2f1 Renesas ARM Based SoC Clock Updates for v3.16
SH Mobile shared clock code
 * Introduce shmobile_clk_workaround()
 
 r8a7791 (R-Car M2) SoC
 * Rename VSP1_SY clocks to VSP1_S
 * Correct the I2C clocks parents
 
 r8a7790 (R-Car H2) SoC
 * Remove old style audio clock
 * Rename VSP1_(SY|RT) clocks to VSP1_(S|R)
 * Fix the I2C clocks parents
 
 r8a7778 (R-Car M1) SoC
 * Remove old style audio clock
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Merge tag 'renesas-clock-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

Merge "Renesas ARM Based SoC Clock Updates for v3.16" from Simon Horman:

SH Mobile shared clock code
* Introduce shmobile_clk_workaround()

r8a7791 (R-Car M2) SoC
* Rename VSP1_SY clocks to VSP1_S
* Correct the I2C clocks parents

r8a7790 (R-Car H2) SoC
* Remove old style audio clock
* Rename VSP1_(SY|RT) clocks to VSP1_(S|R)
* Fix the I2C clocks parents

r8a7778 (R-Car M1) SoC
* Remove old style audio clock

* tag 'renesas-clock-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7790: remove old style audio clock
  ARM: shmobile: r8a7778: remove old style audio clock
  ARM: shmobile: r8a7791: Rename VSP1_SY clocks to VSP1_S
  ARM: shmobile: r8a7790: Rename VSP1_(SY|RT) clocks to VSP1_(S|R)
  ARM: shmobile: r8a7791: Fix the I2C clocks parents in legacy code
  ARM: shmobile: r8a7790: Fix the I2C clocks parents in legacy code
  ARM: shmobile: Introduce shmobile_clk_workaround()
  ARM: shmobile: r8a7791: Use rcar_gen2_read_mode_pins() helper

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 13:51:15 -07:00
Stephen Warren
189c208329 ARM: multi_v7: enable AT24C EEPROM driver
This is used for the board ID EEPROM on Jetson TK1, as well as likely
a whole slew of other NVIDIA reference boards; we simply haven't added
enabled the EEPROM in the DT files until now.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 13:46:24 -07:00
Olof Johansson
15e824dd22 Renesas ARM Based SoC Updates for v3.16
SH Mobile shared SoC code
 * Add shared shmobile_init_delay()
 
 r8a7791 (R-Car M2) and r8a7790 (R-Car H2) SoCs (R-Car Gen2 shared code)
 * Cache Mode Monitor Register Value
 
 r8a7791 (R-Car M2) SoC
 Check r8a7791 MD21 at SMP boot
 
 r8a7790 (R-Car H2) SoC
 * Make use of r8a7790_add_standard_devices()
 * Update r8a7791 CPU freq to 1500MHz
 
 r8a7778 (R-Car M1) SoC
 * Move "select RENESAS_INTC_IRQPIN" under SoC
 
 emev2 (Emma Mobale EV2) SoC
 *  Remove legacy EMEV2 SoC support
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Merge tag 'renesas-soc-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc

Merge "Renesas ARM Based SoC Updates for v3.16" from Simon Horman:

SH Mobile shared SoC code
* Add shared shmobile_init_delay()

r8a7791 (R-Car M2) and r8a7790 (R-Car H2) SoCs (R-Car Gen2 shared code)
* Cache Mode Monitor Register Value

r8a7791 (R-Car M2) SoC
Check r8a7791 MD21 at SMP boot

r8a7790 (R-Car H2) SoC
* Make use of r8a7790_add_standard_devices()
* Update r8a7791 CPU freq to 1500MHz

r8a7778 (R-Car M1) SoC
* Move "select RENESAS_INTC_IRQPIN" under SoC

emev2 (Emma Mobale EV2) SoC
*  Remove legacy EMEV2 SoC support

* tag 'renesas-soc-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: r8a7778/bockw: Move "select RENESAS_INTC_IRQPIN" under SoC
  ARM: shmobile: Check r8a7791 MD21 at SMP boot
  ARM: shmobile: rcar-gen2: Cache Mode Monitor Register Value
  ARM: shmobile: Make use of r8a7790_add_standard_devices()
  ARM: shmobile: Remove EMEV2 header file
  ARM: shmobile: Remove legacy EMEV2 SoC support
  ARM: shmobile: Add shared shmobile_init_delay()
  ARM: shmobile: Update r8a7791 CPU freq to 1500MHz in C

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 13:44:24 -07:00
Ulrich Obergfell
1171903d89 KVM: x86: improve the usability of the 'kvm_pio' tracepoint
This patch moves the 'kvm_pio' tracepoint to emulator_pio_in_emulated()
and emulator_pio_out_emulated(), and it adds an argument (a pointer to
the 'pio_data'). A single 8-bit or 16-bit or 32-bit data item is fetched
from 'pio_data' (depending on 'size'), and the value is included in the
trace record ('val'). If 'count' is greater than one, this is indicated
by the string "(...)" in the trace output.

Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-05-05 22:42:05 +02:00
Olof Johansson
a2fc987ae2 Renesas ARM Based SoC Defconfig Updates for v3.16
SH Mobile Multi-Platform
 * Enable USB [EO]HCI HCD, VSP1, HIGHMEM, USBHS, I2C_SH_MOBILE,
   EEPROM_AT24 and MSIOF
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Merge tag 'renesas-defconfig-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/boards

Merge "Renesas ARM Based SoC Defconfig Updates for v3.16" from Simon Horman:

SH Mobile Multi-Platform
* Enable USB [EO]HCI HCD, VSP1, HIGHMEM, USBHS, I2C_SH_MOBILE,
  EEPROM_AT24 and MSIOF

* tag 'renesas-defconfig-for-v3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  ARM: shmobile: Enable USB [EO]HCI HCD support in shmobile_defconfig
  ARM: shmobile: Enable VSP1 in shmobile_defconfig
  ARM: shmobile: Enable HIGHMEM in shmobile_defconfig
  ARM: shmobile: Enable USBHS gadget support in shmobile_defconfig
  ARM: shmobile: Include at24.c in shmobile_defconfig
  ARM: shmobile: Include i2c-shmobile.c in shmobile_defconfig
  ARM: shmobile: multiplatform: Enable MSIOF in defconfig

Signed-off-by: Olof Johansson <olof@lixom.net>
2014-05-05 13:41:42 -07:00
Ying Cai
e96f2e7c43 ip_tunnel: Set network header properly for IP_ECN_decapsulate()
In ip_tunnel_rcv(), set skb->network_header to inner IP header
before IP_ECN_decapsulate().

Without the fix, IP_ECN_decapsulate() takes outer IP header as
inner IP header, possibly causing error messages or packet drops.

Note that this skb_reset_network_header() call was in this spot when
the original feature for checking consistency of ECN bits through
tunnels was added in eccc1bb8d4 ("tunnel: drop packet if ECN present
with not-ECT"). It was only removed from this spot in 3d7b46cd20
("ip_tunnel: push generic protocol handling to ip_tunnel module.").

Fixes: 3d7b46cd20 ("ip_tunnel: push generic protocol handling to ip_tunnel module.")
Reported-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Ying Cai <ycai@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 16:32:17 -04:00
David S. Miller
780ce3a225 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates

This series contains updates to e1000e only.

David provides four fixes for e1000e, first is a workaround for a hardware
erratum on 82579 devices which experienced packet loss in gigabit and 100
speeds when interconnect between the PHY and MAC is exiting K1 power saving
state.  Second expands the scope of a workaround to include i217 and i218
parts as well to address over aggressive transmit behavior when connecting
at 10Mbs half-duplex.  Next is to resolve a reported link flap issue on
82579 parts which was root caused as an interoperability problem between
82579 and at least some Broadcom PHYs in the Energy Efficient Ethernet wake
mechanism.  Lastly, restricts the workaround of putting the PHY into MDIO
slow mode to access the PHY id to relevant parts since this issue has been
fixed on the newer hardware.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-05 16:30:03 -04:00