Commit Graph

425933 Commits

Author SHA1 Message Date
Sebastian Hesselbarth
a16761acd9 ARM: dove: add system controller node
This adds a DT node for the system-controller found on Marvell Dove
SoCs.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 03:59:34 +00:00
Andrew Lunn
e2b15689dc ARM: kirkwood: Add dts file describing HP T5325 thin client
Describe the T5325 using device tree properties, where possible.  The
first version of this file was produced by Thomas Petazzoni.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 02:18:08 +00:00
Andrew Lunn
cb932e12d9 ARM: kirkwood: Add i2c alias so setting bus number
When using platform_driver instantiation, the i2c bus was given bus
number 0. The kirkwood-t5325 audio driver has this bus number hard
coded for the address of the codec. However by default device tree i2c
busses are dynamically allocated a bus number, starting from 1. Thus
the kirkwood-t5325 cannot find its audio codec. By adding an alias in
the DT file we can control the bus number and set it to 0. The codec
can then be found.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 02:17:58 +00:00
Andrew Lunn
b3f742cc76 ARM: kirkwood: Add audio node to kirkwood.dtsi
The binding has existed for a while, so add the missing node so it can
be used by devices.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 02:17:49 +00:00
Jason Cooper
b89af936c9 ARM: mvebu: select dtbs from MACH_ARMADA_*
With kirkwood migrating into mach-mvebu, mvebu_v5_defconfig needs to
select ARCH_MVEBU.  Unfortunately, this means that when building a v5
kernel, we unnecessarily build dtbs for the armada v7 boards.

To fix this, we instead select based on MACH_ARMADA_* on a per SoC basis.

Reported-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 02:17:40 +00:00
Jason Cooper
b2d7c52603 Merge branch 'mvebu/dt-3xx' into mvebu/dt 2014-03-04 02:17:23 +00:00
Sebastian Hesselbarth
7a98c18f71 ARM: dove: add global-config register node
We share global config registers by syscon node, add it to dove.dtsi.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 02:17:08 +00:00
Sebastian Hesselbarth
5db263743d ARM: dove: add additional pinctrl registers
Dove pinctrl uses additional registers to control MPPs. This patch first
increases existing pinctrl reg property by one register, and then adds
two new ranges for MPP4 and PMU MPP registers.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 02:16:48 +00:00
Andrew Lunn
7702693758 ARM: mvebu: Instantiate system controller in kirkwood.dtsi
Make use of the mvebu system controller, by placing a node into the
dtsi file.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 02:16:31 +00:00
Andrew Lunn
e65d9c61cb ARM: kirkwood: Instantiate L2 cache from DT.
Now that the Feroceon L2 cache has a DT binding, make use of it.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-03-04 02:16:21 +00:00
Jason Cooper
3a7120431d mvebu dt fixes for v3.14
- mvebu: add missing 'eth3' alias for mv78260
 
  - dove: revert PMU interrupt controller node, wait for driver to land.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABAgAGBQJTA4TZAAoJEP45WPkGe8ZnuIYP/1sNAPi05uvIcDc6V+1oOpHJ
 ZwaFrIWGMbXZJlfd/Z8DfmjetAN57gGFtPjRXyU4lteKGp9ySMxRLxROGhLRMuid
 ussqqNyq7gNRXlEgpid3dLMwPG0PXsBP2XrwlZ/zWnsde74PYX0wxUGfM5iJX7dn
 hW+ioUa0sFgwsZCQ4SUAfKHR32caUdXfM2zbpqCXty0WFemJKVbdgWlG/6Hsj+JS
 L0R8rwL9cVu888RpAPcgnjjnVuVohUJWxIp8Vzlyiy8MGGiEODGEovhd9CnIsoko
 q8RnvIna7IJdg4I0+U3NYMGfDnZ457+byzDiG0p1HK8DVEC7hC0YwGk5wLdXK2Yi
 rBwsielYATv1Ssq/0zyKhjvmyKnc6b97eiUnW0NLDmtvlPSoI5kobPi3MzuptSKq
 bZqjQPnx70VGoznackZm+oSDvbR1yWLh2ivFCuQF3NuD0CIKii1EwkS84gLH9wGR
 I7cnueVayzICMKeFOJ7mQciuGIf8pR9IkPhEYRc1K1SaXZTyDlNqZcrkwkBDnw58
 BqZLziwTst3F+OvYdiJI1ieMuSxwzObKGGZbaIYQHvz7ilf9v0kXZMyrNmDAS5BL
 +9Hr1U/cMvIJ4t+VL5ZBqoKn3Yy4H4BszxBeH6ZLLvl+QGlN7FTalkZrTBJdBp+y
 lcvTIjn1GQ9fIsJHuwTq
 =+m5e
 -----END PGP SIGNATURE-----

Merge tag 'tags/mvebu-dt-fixes-3.14' into mvebu/dt

mvebu dt fixes for v3.14

 - mvebu: add missing 'eth3' alias for mv78260

 - dove: revert PMU interrupt controller node, wait for driver to land.
2014-02-22 18:16:33 +00:00
Thomas Petazzoni
d11548e311 ARM: mvebu: use macros for interrupt flags on Armada 375/38x
Instead of hardcoding the values of the interrupt flags, use the
macros provided by <include/dt-bindings/interrupt-controller/irq.h>
and <include/dt-bindings/interrupt-controller/arm-gic.h> for the
Armada 375 and Armada 38x Device Tree files.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-22 04:11:03 +00:00
Thomas Petazzoni
f327d43da1 ARM: mvebu: use GIC_{SPI,PPI} in Armada 375/38x DTs
Instead of hardcoding 0 and 1 to indicate SPI and PPI GIC interrupts,
use the definitions of <dt-bindings/interrupt-controller/arm-gic.h> to
clarify the Device Tree code.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-22 04:10:52 +00:00
Thomas Petazzoni
a2be1561a3 ARM: mvebu: use C preprocessor include for Armada 375/38x DTs
Some of the Armada 375/38x DTs that were recently submitted were still
using the old-style /include/ instead of the new-style, C-preprocessor
based #include. Since we are going to start including more headers,
switching to the C-preprocessor based includes is important.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-22 04:10:41 +00:00
Ben Peddell
2d0a7addbd ARM: Kirkwood: Add support for many Synology NAS devices
Add device tree fragments and files to support many of the kirkwood
based Synology NAS devices. This is a modification of
Andrew Lunn's <andrew@lunn.ch> translation of the board setup file
maintained by Ben Peddell <klightspeed@killerwolves.net>

The Ricoh RS5C372 RTC was used in all 2009 units and some 2010 units.
All other Synology Kirkwood-based DiskStations and RackStations use
the Seiko S35390A RTC.

Most of the 1-bay and 2-bay units use the GPIOs that are multiplexed
with the built-in SATA interface activity/presence pins on mpp 20-23,
while the 4-bay units use ge01 and a PCIe SATA controller, and put the
software controlled HDD leds on mpp 36-43.

Most of the 6281 units with HDD power controls use mpp 29 and 31, while
most of the 6282 units with HDD power controls use mpp 30, 34, 44 and 45
and provide a model ID on mpp 28, 29, 46 and 47.  Pre-2012 units and
most 4-bay units didn't have a separate power control for HDD1.  These
power controls are presumably to limit startup current from the 12V
brick power supply.

Instead of using separate dtsi files in a synology directory, this
patch uses a single dtsi file containing all of the modules for
these boards, with all of the modules not common to all boards
disabled.  The board dts files then enable the appropriate modules for
their boards.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ben Peddell <klightspeed@killerwolves.net>
Tested-by: Ben Peddell <klightspeed@killerwolves.net> (ds211j)
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-22 01:48:55 +00:00
Andrew Lunn
36670de13d DT: i2c: Trivial: Add sii,s35390a
Add the Seiko Instruments Inc S35390a to the list of trivial i2c
devices.

Signed-off-by: Ben Peddell <klightspeed@killerwolves.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-22 01:45:01 +00:00
Andrew Lunn
f7f2ea9f49 DT: Vendor prefixes: Add ricoh, qnap, sii and synology
The following patches make use of vendor names:
* ricoh (Ricoh Co. Ltd.);
* qnap (QNAP Systems, Inc.);
* sii (Seiko Instruments, Inc.); and
* synology (Synology, Inc.)

Add them to the vendor prefix list.

Signed-off-by: Ben Peddell <klightspeed@killerwolves.net>
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-22 01:43:51 +00:00
Jason Cooper
ae10f8329f ARM: dove: dt: revert PMU interrupt controller node
The corresponding driver didn't make it into v3.14, so we need to remove
the node.  Dove systems fail to boot with the node present and no
driver.

This node will be re-added when the driver makes it to mainline.

Reported-by: Jean-Francois Moine <moinejf@free.fr>
Tested-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-18 16:01:27 +00:00
Thomas Petazzoni
a47172ead1 ARM: mvebu: add Device Tree for the Armada 385 DB board
The Armada 385 DB board is the development board from Marvell for the
Armada 385 SoC. This commit adds a Device Tree description for this
board, which enables the following features:

 * Network interfaces
 * I2C buses
 * SDIO
 * Serial port
 * SPI bus, with a SPI flash
 * PCIe interfaces

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 22:50:24 +00:00
Thomas Petazzoni
0d3d96ab00 ARM: mvebu: add Device Tree description of the Armada 380/385 SoCs
The Armada 380 and 385 SoCs are new SoCs from Marvell, based on a
Cortex-A9 cores (single core for 380, dual core for 385) and a number
of hardware blocks that are common with earlier SoCs from the mvebu
family.

The provided Device Tree describes the following parts of the SoC:

 * CPU
 * Device Bus
 * Clocks
 * Interrupt controllers: GIC and MPIC
 * GPIO controllers
 * I2C buses
 * L2 cache
 * MBus controller
 * Pinctrl
 * Serial
 * SPI buses
 * System controller (for reboot)
 * Timer
 * XOR engines
 * PCIe controllers
 * Network interfaces

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 22:50:20 +00:00
Thomas Petazzoni
44e255a584 ARM: mvebu: add Device Tree for the Armada 375 DB board
The Armada 375 DB board is the development board from Marvell for the
Armada 375 SoC. This commit adds a Device Tree description for this
board, which enables the following features:

 * I2C buses
 * SDIO
 * Serial port
 * SPI bus, with a SPI flash. Note that the SPI bus is disabled by
   default, because it conflicts with the NAND, and can only work if
   the board boots out of SPI. Since most boards are shipped to boot
   out of NAND, we're default to having the SPI bus disabled.
 * PCIe interfaces

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 22:50:09 +00:00
Gregory CLEMENT
4de5908509 ARM: mvebu: add Device Tree description of the Armada 375 SoC
The Armada 375 SoC is a new SoC from Marvell, based on a dual core
Cortex-A9 and a number of hardware blocks that are common with earlier
SoCs from the mvebu family.

The provided Device Tree describes the following parts of the SoC:

 * CPUs
 * Device Bus
 * Clocks
 * Interrupt controllers: GIC and MPIC
 * GPIO controllers
 * I2C buses
 * L2 cache
 * MBus controller
 * SDIO
 * Pinctrl
 * SATA
 * Serial
 * SPI buses
 * System controller (for reboot)
 * Timer
 * XOR engines
 * PCIe controllers

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 22:49:54 +00:00
Ezequiel Garcia
7a5b293f20 ARM: dove: Enable Dove watchdog in the devicetree
Add the devicetree node to enable watchdog support available in Dove SoCs.

Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 21:44:09 +00:00
Ezequiel Garcia
7224cbc18e ARM: kirkwood: Add RSTOUT 'reg' entry to devicetree
In order to support multiplatform builds the watchdog devicetree binding
was modified and now the 'reg' property is specified to need two
entries. This commit adds the second entry as-per the new specification.

Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 21:44:09 +00:00
Ezequiel Garcia
05afeeb9b1 ARM: mvebu: Enable Armada 370/XP watchdog in the devicetree
Add the DT nodes to enable watchdog support available in Armada 370
and Armada XP SoCs.

Tested-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 21:44:08 +00:00
Andrew Lunn
e2eaa339af ARM: Kirkwood: convert rd88f6281-setup.c to DT.
Perform a mechanical translation of rd88f6281-setup.c into DT.  Since
the hardware differs between the A0 and A1 stepping, two dts files are
used, and a .dtsi file for the common parts. The A0 part does not have
a "wan" port on the switch and uses PHY address 10 to address the
switch. The A1 part does have the "wan" port and uses address 0.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 03:01:25 +00:00
Andrew Lunn
dd94317083 ARM: Kirkwood: Add DT description of rd88f6192.
Mechanically translate rd88f6192-nas-setup.c into DT equivelent.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 03:01:24 +00:00
Thomas Petazzoni
5b26bd88b2 ARM: mvebu: enable S/PDIF audio in Armada 370 DB Device Tree
In addition to the analog audio input and output, the Armada 370 DB
also has S/PDIF input and output optical connectors. This commit
improves the Device Tree description of the Armada 370 DB platform to
enable the S/PDIF support.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 02:42:39 +00:00
Thomas Petazzoni
249f382250 ARM: mvebu: add audio support to Armada 370 DB
This commit adds the necessary Device Tree informations to enable
audio support on the Armada 370 DB platform. In details it:

 * Instantiates the CS42L51 audio codec on the I2C0 bus, and
   configures this bus with the appropriate pin-muxing configuration.

 * Enables the I2S audio controller, and configures it with the
   appropriate pin-muxing configuration.

 * Through hog pins, ensures that the other pins possibly used for I2S
   are muxed with another function than I2S.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 02:42:39 +00:00
Thomas Petazzoni
8d001f0b99 ARM: mvebu: add I2C0 muxing option for Armada 370 SoC
This commit adds a pin-muxing configuration for the I2C0 bus of the
Armada 370, which is used on the Armada 370 DB platform to interface
with the CS42L51 audio codec.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 02:42:38 +00:00
Thomas Petazzoni
74839835fb ARM: mvebu: add audio I2S controller to Armada 370 Device Tree
The Armada 370 SoC has an I2S audio controller. This commit adds the
description of this controller to the Device Tree describing this SoC,
as well as two possible muxing configurations for the I2S bus pins.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-17 02:42:38 +00:00
Thomas Petazzoni
5c0169d1c5 ARM: mvebu: use input DT defines in Armada 370/XP boards
Instead of harcoding keycodes specifications in the Armada 370/XP
boards, use the <dt-bindings/input/input.h> header file and its
keycode definitions.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-11 19:35:39 +00:00
Thomas Petazzoni
29e74f8bd7 ARM: mvebu: use GPIO DT defines in Armada 370/XP boards
Instead of harcoding 0 and 1 for the gpio specifications in the Armada
370/XP boards, use the <dt-bindings/gpio/gpio.h> header file and its
GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW definitions.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-11 19:35:30 +00:00
Willy Tarreau
14cfa4bd74 ARM: mvebu: dt: add missing alias 'eth3' on Armada XP mv78260
It was correctly set on mv78460 but not on mv78260, resulting in my
OpenBlocks AX3-4 retrieving only 3 of its 4 MAC addresses from the
boot loader.

Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-05 02:30:22 +00:00
Andrew Lunn
934b524b3f ARM: Kirkwood: Add DT description of QNAP 419
Re-implement the Marvell Kirkwood ts41x-setup.c in DT.

As with the QNAP 119, there are two variants, depending on which SoC
has been used. They differ on Ethernet PHY addresses and number of
PCIe busses.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Ian Campbell <ijc@hellion.org.uk> (kirkwood-ts419-6281.dtb)
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-05 02:22:07 +00:00
Andrew Lunn
27aa719962 ARM: Kirkwood: Add support for Excito Bubba B3
The Excito Bubba B3 is a home server, single drive NAS box, Wifi
access point, etc.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-02-05 02:21:57 +00:00
Linus Torvalds
38dbfb59d1 Linus 3.14-rc1 2014-02-02 16:42:13 -08:00
Linus Torvalds
69048e0188 Merge branch 'parisc-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc updates from Helge Deller:
 "The three major changes in this patchset is a implementation for
  flexible userspace memory maps, cache-flushing fixes (again), and a
  long-discussed ABI change to make EWOULDBLOCK the same value as
  EAGAIN.

  parisc has been the only platform where we had EWOULDBLOCK != EAGAIN
  to keep HP-UX compatibility.  Since we will probably never implement
  full HP-UX support, we prefer to drop this compatibility to make it
  easier for us with Linux userspace programs which mostly never checked
  for both values.  We don't expect major fall-outs because of this
  change, and if we face some, we will simply rebuild the necessary
  applications in the debian archives"

* 'parisc-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: add flexible mmap memory layout support
  parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc
  parisc: convert uapi/asm/stat.h to use native types only
  parisc: wire up sched_setattr and sched_getattr
  parisc: fix cache-flushing
  parisc/sti_console: prefer Linux fonts over built-in ROM fonts
2014-02-02 16:32:53 -08:00
Mikulas Patocka
1c0b8a7a62 hpfs: optimize quad buffer loading
HPFS needs to load 4 consecutive 512-byte sectors when accessing the
directory nodes or bitmaps.  We can't switch to 2048-byte block size
because files are allocated in the units of 512-byte sectors.

Previously, the driver would allocate a 2048-byte area using kmalloc,
copy the data from four buffers to this area and eventually copy them
back if they were modified.

In the current implementation of the buffer cache, buffers are allocated
in the pagecache.  That means that 4 consecutive 512-byte buffers are
stored in consecutive areas in the kernel address space.  So, we don't
need to allocate extra memory and copy the content of the buffers there.

This patch optimizes the code to avoid copying the buffers.  It checks
if the four buffers are stored in contiguous memory - if they are not,
it falls back to allocating a 2048-byte area and copying data there.

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-02 16:24:07 -08:00
Mikulas Patocka
2cbe5c76fc hpfs: remember free space
Previously, hpfs scanned all bitmaps each time the user asked for free
space using statfs.  This patch changes it so that hpfs scans the
bitmaps only once, remembes the free space and on next invocation of
statfs it returns the value instantly.

New versions of wine are hammering on the statfs syscall very heavily,
making some games unplayable when they're stored on hpfs, with load
times in minutes.

This should be backported to the stable kernels because it fixes
user-visible problem (excessive level load times in wine).

Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-02 16:24:07 -08:00
Helge Deller
9dabf60dc4 parisc: add flexible mmap memory layout support
Add support for the flexible mmap memory layout (as described in
http://lwn.net/Articles/91829). This is especially very interesting on
parisc since we currently only support 32bit userspace (even with a
64bit Linux kernel).

Signed-off-by: Helge Deller <deller@gmx.de>
2014-02-02 21:00:13 +01:00
Guy Martin
f5a408d53e parisc: Make EWOULDBLOCK be equal to EAGAIN on parisc
On Linux, only parisc uses a different value for EWOULDBLOCK which
causes a lot of troubles for applications not checking for both values.
Since the hpux compat is long dead, make EWOULDBLOCK behave the same as
all other architectures.

Signed-off-by: Guy Martin <gmsoft@tuxicoman.be>
Signed-off-by: Helge Deller <deller@gmx.de>
2014-02-02 20:57:42 +01:00
Helge Deller
9391bc777b parisc: convert uapi/asm/stat.h to use native types only
The stat.h header file is exported to userspace. Some userspace
applications failed to compile due to missing/unknown types, so we
better convert it to use native types only (like it's done on other
architectures too).

Signed-off-by: Helge Deller <deller@gmx.de>
2014-02-02 20:57:33 +01:00
Helge Deller
998bbb2fc0 parisc: wire up sched_setattr and sched_getattr
Signed-off-by: Helge Deller <deller@gmx.de>
2014-02-02 20:57:25 +01:00
Helge Deller
57737c49dd parisc: fix cache-flushing
This commit:
f8dae00684: parisc: Ensure full cache coherency for kmap/kunmap
caused negative caching side-effects, e.g. hanging processes with expect and
too many inequivalent alias messages from flush_dcache_page() on Debian 5 systems.

This patch now partly reverts it and has been in production use on our debian buildd
makeservers since a week without any major problems.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Cc: stable@vger.kernel.org # v3.9+
Signed-off-by: Helge Deller <deller@gmx.de>
2014-02-02 20:57:16 +01:00
Helge Deller
8a10bc9d27 parisc/sti_console: prefer Linux fonts over built-in ROM fonts
The built-in ROM fonts lack many necessary ASCII characters, which is
why it makes sens to prefer the Linux fonts instead if they are
available.  This makes consoles on STI graphics cards which are not
supported by the stifb driver (e.g. Visualize FXe) looks much nicer.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v3.13
2014-02-02 20:56:47 +01:00
Linus Torvalds
602456bf16 Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull hwmon kconfig fixes from Jean Delvare.

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: Fix SENSORS_TMP102 dependencies to eliminate build errors
  hwmon: Fix SENSORS_LM75 dependencies to eliminate build errors
2014-02-02 11:30:57 -08:00
Linus Torvalds
7b383bef25 Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
Pull SLAB changes from Pekka Enberg:
 "Random bug fixes that have accumulated in my inbox over the past few
  months"

* 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  mm: Fix warning on make htmldocs caused by slab.c
  mm: slub: work around unneeded lockdep warning
  mm: sl[uo]b: fix misleading comments
  slub: Fix possible format string bug.
  slub: use lockdep_assert_held
  slub: Fix calculation of cpu slabs
  slab.h: remove duplicate kmalloc declaration and fix kernel-doc warnings
2014-02-02 11:30:08 -08:00
Linus Torvalds
87af5e5c22 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull turbostat updates from Len Brown.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: introduce -s to dump counters
  tools/power turbostat: remove unused command line option
  turbostat: Add option to report joules consumed per sample
  turbostat: run on HSX
  turbostat: Add a .gitignore to ignore the compiled turbostat binary
  turbostat: Clean up error handling; disambiguate error messages; use err and errx
  turbostat: Factor out common function to open file and exit on failure
  turbostat: Add a helper to parse a single int out of a file
  turbostat: Check return value of fscanf
  turbostat: Use GCC's CPUID functions to support PIC
  turbostat: Don't attempt to printf an off_t with %zx
  turbostat: Don't put unprocessed uapi headers in the include path
2014-02-02 11:28:48 -08:00
Linus Torvalds
e4c0da2165 ARM: SoC fixes for 3.14-rc1
Here's a set of patches for (hopefully) -rc1. Some of them are fixes,
 but a good number of them also do things such as enable new drivers in
 the defconfigs for platforms that have such devices, increases coverage
 of the multiplatform defconfig and some DTS changes that plumbs up some
 of the devices that now have bindings and driver support.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.11 (GNU/Linux)
 
 iQIcBAABAgAGBQJS7VYsAAoJEIwa5zzehBx3FKIQAIVIkjlKAtvRpg+P/BYWigXq
 6jG2xuBhwf1Yciu70ttvfRnR9bGJc+0o5w/qjr7ARSFp7GkDlWXtIwj+1EwGSEES
 hB/f2GcBfNLJOI0rHvvudz+7HlpiyfB6iMj3U25hnpShrSTxbOHDC6pU6pYjUzBy
 T1AYTmfa0vwuy9TNodOr4dVYlbJc3YA0V2sBTusXDFwm03XTdCd7E7RJIr/MRDEN
 96PtaNrfstmxeTjN0NBuL2IdsZNR2mn/cgWTL1lVqVE8+z7QyvmPDqmWD5iCVQaM
 +6mJbXL4jzM1CyB8Qf89sNtTaFVjwbgvbtuljPv/7q/jhf2rvixaMzywCv28FjB+
 uJCaLh1r/HiR61tlw0yX3ixPdKFJqyWV9vF5+uuwmEQCCPpFWGzTcNaZ7NRiYzEt
 yqt1ZRDhEAli8iHt96LxMwLIklaDGvuxLtHsv4a5djEoaO/yqRTNZXDjwIsIzkpD
 N8vUwPf7Pnw+3/5iGVTQdZaPzmrNjqTOLwz0s7ys2avVsRsNNi68hMuIj+qrNlzu
 /tJhhh0u9SONRM3c6D9mtrZPD7Gs8QgMbT9TyZ2/ILQKuo4wO9F1GDN93MjZI5oq
 1rX/QUeYItWQamzHGmI8ZlAx4YlsxxB90eJ8CaG2F8sVtumklrFRb43Vf9NRsyo/
 XDrjoS/cdi7PAO0wemkg
 =ymAC
 -----END PGP SIGNATURE-----

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:
 "Here's a set of patches for (hopefully) -rc1.  Some of them are fixes,
  but a good number of them also do things such as enable new drivers in
  the defconfigs for platforms that have such devices, increases
  coverage of the multiplatform defconfig and some DTS changes that
  plumbs up some of the devices that now have bindings and driver
  support.

  The commit dates are recent; we've mostly collected these fixes in the
  last few days but I also had to rebuild the branch yesterday to sort
  out some internal conflicts which reset the timestamps.  The changes
  should have been tested by each platform maintainer already (and few
  of them have cross-platform impact) so I'm personally not too
  concerned by it at this time"

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (23 commits)
  ARM: multi_v7_defconfig: remove redundant entries and re-enable TI_EDMA
  ARM: multi_v7_defconfig: add mvebu drivers
  clocksource: kona: Add basic use of external clock
  drivers: bus: fix CCI driver kcalloc call parameters swap
  ARM: dts: bcm28155-ap: Fix Card Detection GPIO
  ARM: multi_v7_defconfig: Select CONFIG_AT803X_PHY
  ARM: keystone: config: fix build warning when CONFIG_DMADEVICES is not set
  MAINTAINERS: ARM: SiRF: use regex patterns to involve all SiRF drivers
  ARM: dts: zynq: Add SDHCI nodes
  ARM: hisi: don't select SMP
  ARM: tegra: rebuild tegra_defconfig to add DEBUG_FS
  ARM: multi_v7: copy most options from tegra_defconfig
  ARM: iop32x: fix power off handling for the EM7210 board
  ARM: integrator: restore static map on the CP
  ARM: msm_defconfig: Enable MSM clock drivers
  ARM: dts: msm: Add clock controller nodes and hook into uart
  ARM: OMAP4+: move errata initialization to omap4_pm_init_early
  ARM: OMAP4460: cpuidle: Extend PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD on cpuidle
  ARM: mvebu: fix compilation warning on Armada 370 (i.e. non-SMP)
  ARM: shmobile: r8a7790.dtsi: ficx i2c[0-3] clock reference
  ...
2014-02-02 11:11:06 -08:00