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Author SHA1 Message Date
Linus Torvalds
388f997620 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
Pull networking fixes from David Miller:

 1) Fix verifier memory corruption and other bugs in BPF layer, from
    Alexei Starovoitov.

 2) Add a conservative fix for doing BPF properly in the BPF classifier
    of the packet scheduler on ingress.  Also from Alexei.

 3) The SKB scrubber should not clear out the packet MARK and security
    label, from Herbert Xu.

 4) Fix oops on rmmod in stmmac driver, from Bryan O'Donoghue.

 5) Pause handling is not correct in the stmmac driver because it
    doesn't take into consideration the RX and TX fifo sizes.  From
    Vince Bridgers.

 6) Failure path missing unlock in FOU driver, from Wang Cong.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (44 commits)
  net: dsa: use DEVICE_ATTR_RW to declare temp1_max
  netns: remove BUG_ONs from net_generic()
  IB/ipoib: Fix ndo_get_iflink
  sfc: Fix memcpy() with const destination compiler warning.
  altera tse: Fix network-delays and -retransmissions after high throughput.
  net: remove unused 'dev' argument from netif_needs_gso()
  act_mirred: Fix bogus header when redirecting from VLAN
  inet_diag: fix access to tcp cc information
  tcp: tcp_get_info() should fetch socket fields once
  net: dsa: mv88e6xxx: Add missing initialization in mv88e6xxx_set_port_state()
  skbuff: Do not scrub skb mark within the same name space
  Revert "net: Reset secmark when scrubbing packet"
  bpf: fix two bugs in verification logic when accessing 'ctx' pointer
  bpf: fix bpf helpers to use skb->mac_header relative offsets
  stmmac: Configure Flow Control to work correctly based on rxfifo size
  stmmac: Enable unicast pause frame detect in GMAC Register 6
  stmmac: Read tx-fifo-depth and rx-fifo-depth from the devicetree
  stmmac: Add defines and documentation for enabling flow control
  stmmac: Add properties for transmit and receive fifo sizes
  stmmac: fix oops on rmmod after assigning ip addr
  ...
 2015-04-17 16:31:08 -04:00
Linus Torvalds
bfaf245022 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 
Pull MIPS updates from Ralf Baechle:
 "This is the main pull request for MIPS for Linux 4.1.  Most
  noteworthy:

   - Add more Octeon-optimized crypto functions
   - Octeon crypto preemption and locking fixes
   - Little endian support for Octeon
   - Use correct CSR to soft reset Octeons
   - Support LEDs on the Octeon-based DSR-1000N
   - Fix PCI interrupt mapping for the Octeon-based DSR-1000N
   - Mark prom_free_prom_memory() as __init for a number of systems
   - Support for Imagination's Pistachio SOC.  This includes arch and
     CLK bits.  I'd like to merge pinctrl bits later
   - Improve parallelism of csum_partial for certain pipelines
   - Organize DTB files in subdirs like other architectures
   - Implement read_sched_clock for all MIPS platforms other than
     Octeon
   - Massive series of 38 fixes and cleanups for the FPU emulator /
     kernel
   - Further FPU remulator work to support new features.  This sits on a
     separate branch which also has been pulled into the 4.1 KVM branch
   - Clean up and fixes for the SEAD3 eval board; remove unused file
   - Various updates for Netlogic platforms
   - A number of small updates for Loongson 3 platforms
   - Increase the memory limit for ATH79 platforms to 256MB
   - A fair number of fixes and updates for BCM47xx platforms
   - Finish the implementation of XPA support
   - MIPS FDC support.  No, not floppy controller but Fast Debug Channel :)
   - Detect the R16000 used in SGI legacy platforms
   - Fix Kconfig dependencies for the SSB bus support"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (265 commits)
  MIPS: Makefile: Fix MIPS ASE detection code
  MIPS: asm: elf: Set O32 default FPU flags
  MIPS: BCM47XX: Fix detecting Microsoft MN-700 & Asus WL500G
  MIPS: Kconfig: Disable SMP/CPS for 64-bit
  MIPS: Hibernate: flush TLB entries earlier
  MIPS: smp-cps: cpu_set FPU mask if FPU present
  MIPS: lose_fpu(): Disable FPU when MSA enabled
  MIPS: ralink: add missing symbol for RALINK_ILL_ACC
  MIPS: ralink: Fix bad config symbol in PCI makefile.
  SSB: fix Kconfig dependencies
  MIPS: Malta: Detect and fix bad memsize values
  Revert "MIPS: Avoid pipeline stalls on some MIPS32R2 cores."
  MIPS: Octeon: Delete override of cpu_has_mips_r2_exec_hazard.
  MIPS: Fix cpu_has_mips_r2_exec_hazard.
  MIPS: kernel: entry.S: Set correct ISA level for mips_ihb
  MIPS: asm: spinlock: Fix addiu instruction for R10000_LLSC_WAR case
  MIPS: r4kcache: Use correct base register for MIPS R6 cache flushes
  MIPS: Kconfig: Fix typo for the r2-to-r6 emulator kernel parameter
  MIPS: unaligned: Fix regular load/store instruction emulation for EVA
  MIPS: unaligned: Surround load/store macros in do {} while statements
  ...
 2015-04-17 15:50:54 -04:00
Linus Torvalds
96d928ed75 Xtensa changes and fixes for 4.1 
- fix linker script transformation for .text / .text.fixup
 - wire bpf and execveat syscalls;
 - provide __NR_sync_file_range2 instead of __NR_sync_file_range, as that's
   what xtensa uses.
 
 - make xtfpgs LCD driver functional and configurable. This fixes hardware
   lockup on KC705/ML605 boot;
 - add audio subsystem bits to xtfpga DTS and provide sample KC705 config
   with audio features enabled.
 - add CY7C67300 USB controller support to XTFPGA.
 - fix locking issues in ISS network driver;
 - document PIC and MX interrupt distributor device tree bindings;
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Merge tag 'xtensa-20150416' of git://github.com/czankel/xtensa-linux

Pull Xtensa updates from Chris Zankel:

 - fix linker script transformation for .text / .text.fixup

 - wire bpf and execveat syscalls

 - provide __NR_sync_file_range2 instead of __NR_sync_file_range, as
   that's what xtensa uses.

 - make xtfpgs LCD driver functional and configurable.  This fixes
   hardware lockup on KC705/ML605 boot

 - add audio subsystem bits to xtfpga DTS and provide sample KC705
   config with audio features enabled

 - add CY7C67300 USB controller support to XTFPGA

 - fix locking issues in ISS network driver

 - document PIC and MX interrupt distributor device tree bindings

* tag 'xtensa-20150416' of git://github.com/czankel/xtensa-linux:
  xtensa: xtfpga: add CY7C67300 USB controller support
  irqchip: xtensa-pic: xtensa-mx: document DT bindings
  xtensa: ISS: fix locking in TAP network adapter
  xtensa: Fix fix linker script transformation for .text / .text.fixup
  xtensa: provide __NR_sync_file_range2 instead of __NR_sync_file_range
  xtensa: wire bpf and execveat syscalls
  xtensa: xtfpga: fix hardware lockup caused by LCD driver
  xtensa: xtfpga: provide defconfig with audio subsystem
  xtensa: xtfpga: add audio card to xtfpga DTS
 2015-04-17 15:32:30 -04:00
Linus Torvalds
54e514b91b Merge branch 'akpm' (patches from Andrew) 
Merge third patchbomb from Andrew Morton:

 - various misc things

 - a couple of lib/ optimisations

 - provide DIV_ROUND_CLOSEST_ULL()

 - checkpatch updates

 - rtc tree

 - befs, nilfs2, hfs, hfsplus, fatfs, adfs, affs, bfs

 - ptrace fixes

 - fork() fixes

 - seccomp cleanups

 - more mmap_sem hold time reductions from Davidlohr

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (138 commits)
  proc: show locks in /proc/pid/fdinfo/X
  docs: add missing and new /proc/PID/status file entries, fix typos
  drivers/rtc/rtc-at91rm9200.c: make IO endian agnostic
  Documentation/spi/spidev_test.c: fix warning
  drivers/rtc/rtc-s5m.c: allow usage on device type different than main MFD type
  .gitignore: ignore *.tar
  MAINTAINERS: add Mediatek SoC mailing list
  tomoyo: reduce mmap_sem hold for mm->exe_file
  powerpc/oprofile: reduce mmap_sem hold for exe_file
  oprofile: reduce mmap_sem hold for mm->exe_file
  mips: ip32: add platform data hooks to use DS1685 driver
  lib/Kconfig: fix up HAVE_ARCH_BITREVERSE help text
  x86: switch to using asm-generic for seccomp.h
  sparc: switch to using asm-generic for seccomp.h
  powerpc: switch to using asm-generic for seccomp.h
  parisc: switch to using asm-generic for seccomp.h
  mips: switch to using asm-generic for seccomp.h
  microblaze: use asm-generic for seccomp.h
  arm: use asm-generic for seccomp.h
  seccomp: allow COMPAT sigreturn overrides
  ...
 2015-04-17 09:04:38 -04:00
Andrey Vagin
6c8c90319c proc: show locks in /proc/pid/fdinfo/X 
Let's show locks which are associated with a file descriptor in
its fdinfo file.

Currently we don't have a reliable way to determine who holds a lock.  We
can find some information in /proc/locks, but PID which is reported there
can be wrong.  For example, a process takes a lock, then forks a child and
dies.  In this case /proc/locks contains the parent pid, which can be
reused by another process.

$ cat /proc/locks
...
6: FLOCK  ADVISORY  WRITE 324 00:13:13431 0 EOF
...

$ ps -C rpcbind
  PID TTY          TIME CMD
  332 ?        00:00:00 rpcbind

$ cat /proc/332/fdinfo/4
pos:	0
flags:	0100000
mnt_id:	22
lock:	1: FLOCK  ADVISORY  WRITE 324 00:13:13431 0 EOF

$ ls -l /proc/332/fd/4
lr-x------ 1 root root 64 Mar  5 14:43 /proc/332/fd/4 -> /run/rpcbind.lock

$ ls -l /proc/324/fd/
total 0
lrwx------ 1 root root 64 Feb 27 14:50 0 -> /dev/pts/0
lrwx------ 1 root root 64 Feb 27 14:50 1 -> /dev/pts/0
lrwx------ 1 root root 64 Feb 27 14:49 2 -> /dev/pts/0

You can see that the process with the 324 pid doesn't hold the lock.

This information is required for proper dumping and restoring file
locks.

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Acked-by: Jeff Layton <jlayton@poochiereds.net>
Acked-by: "J. Bruce Fields" <bfields@fieldses.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-17 09:04:12 -04:00
Nathan Scott
15eb42d674 docs: add missing and new /proc/PID/status file entries, fix typos 
docs: add missing and new /proc/PID/status file entries, fix typos

Signed-off-by: Nathan Scott <nathans@redhat.com>
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-17 09:04:12 -04:00
Andrew Morton
07eec628ff Documentation/spi/spidev_test.c: fix warning 
Documentation/spi/spidev_test.c:83:5: warning: no previous prototype for 'unespcape' [-Wmissing-prototypes]

fix spelling too.

Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-17 09:04:12 -04:00
Heinrich Schuchardt
0ec62afeb1 Doc/sysctl/kernel.txt: document threads-max 
File /proc/sys/kernel/threads-max controls the maximum number of threads
that can be created using fork().

[akpm@linux-foundation.org: fix typo, per Guenter]
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-17 09:04:07 -04:00
Baruch Siach
71b800b628 rtc: digicolor: document device tree binding 
Add a device tree binding documentation to the Real Time Clock hardware
block on the Conexant CX92755 SoC.  The CX92755 is from the Digicolor SoCs
series.  Other SoCs in that series may share the same hardware block.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-17 09:04:01 -04:00
Uwe Kleine-König
7f48b21bdf rtc: stmp3xxx: use optional crystal in low power states 
The rtc's status register allows to determine if a 32k crystal is
connected to keep the rtc running in low power states provided the
corresponding fuse bits were blown correctly during production.  (In case
they were not, the right frequency can be stated in the device tree.) If
there is no such crystal available force the 24 MHz XTAL clock to keep
running to retain the right date and time.  Otherwise use the crystal to
save some power.

It would be nice to only switch to the crystal when the XTAL clock is
about to be disabled and keep the crystal off when unneeded because XTAL
is always on while the chip is powered on.  But as sudden power loss isn't
detectable this is not save.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-17 09:03:59 -04:00
Joe Perches
2a076f40d8 checkpatch, SubmittingPatches: suggest line wrapping commit messages at 75 columns 
Commit messages lines are sometimes overly long.

Suggest line wrapping at 75 columns so the default git commit log
indentation of 4 plus the commit message text still fits on an 80 column
screen.

Add a checkpatch test for long commit messages lines too.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: David Miller <davem@davemloft.net>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Ian Morris <ipm@chirality.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-17 09:03:57 -04:00
Bartosz Golaszewski
f2027543b9 documentation: update CodingStyle on local variables naming in macros 
Describe proper naming convention for local variables in macros
resembling functions.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-17 09:03:54 -04:00
Linus Torvalds
4fc8adcfec Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull third hunk of vfs changes from Al Viro:
 "This contains the ->direct_IO() changes from Omar + saner
  generic_write_checks() + dealing with fcntl()/{read,write}() races
  (mirroring O_APPEND/O_DIRECT into iocb->ki_flags and instead of
  repeatedly looking at ->f_flags, which can be changed by fcntl(2),
  check ->ki_flags - which cannot) + infrastructure bits for dhowells'
  d_inode annotations + Christophs switch of /dev/loop to
  vfs_iter_write()"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (30 commits)
  block: loop: switch to VFS ITER_BVEC
  configfs: Fix inconsistent use of file_inode() vs file->f_path.dentry->d_inode
  VFS: Make pathwalk use d_is_reg() rather than S_ISREG()
  VFS: Fix up debugfs to use d_is_dir() in place of S_ISDIR()
  VFS: Combine inode checks with d_is_negative() and d_is_positive() in pathwalk
  NFS: Don't use d_inode as a variable name
  VFS: Impose ordering on accesses of d_inode and d_flags
  VFS: Add owner-filesystem positive/negative dentry checks
  nfs: generic_write_checks() shouldn't be done on swapout...
  ocfs2: use __generic_file_write_iter()
  mirror O_APPEND and O_DIRECT into iocb->ki_flags
  switch generic_write_checks() to iocb and iter
  ocfs2: move generic_write_checks() before the alignment checks
  ocfs2_file_write_iter: stop messing with ppos
  udf_file_write_iter: reorder and simplify
  fuse: ->direct_IO() doesn't need generic_write_checks()
  ext4_file_write_iter: move generic_write_checks() up
  xfs_file_aio_write_checks: switch to iocb/iov_iter
  generic_write_checks(): drop isblk argument
  blkdev_write_iter: expand generic_file_checks() call in there
  ...
 2015-04-16 23:27:56 -04:00
Linus Torvalds
a39ef1a7c6 Merge branch 'for-4.1/drivers' of git://git.kernel.dk/linux-block 
Pull block driver updates from Jens Axboe:
 "This is the block driver pull request for 4.1.  As with the core bits,
  this is a relatively slow round.  This pull request contains:

   - Various fixes and cleanups for NVMe, from Alexey Khoroshilov, Chong
     Yuan, myself, Keith Busch, and Murali Iyer.

   - Documentation and code cleanups for nbd from Markus Pargmann.

   - Change of brd maintainer to me, from Ross Zwisler.  At least the
     email doesn't bounce anymore then.

   - Two xen-blkback fixes from Tao Chen"

* 'for-4.1/drivers' of git://git.kernel.dk/linux-block: (23 commits)
  NVMe: Meta data handling through submit io ioctl
  NVMe: Add translation for block limits
  NVMe: Remove check for null
  NVMe: Fix error handling of class_create("nvme")
  xen-blkback: define pr_fmt macro to avoid the duplication of DRV_PFX
  xen-blkback: enlarge the array size of blkback name
  nbd: Return error pointer directly
  nbd: Return error code directly
  nbd: Remove fixme that was already fixed
  nbd: Restructure debugging prints
  nbd: Fix device bytesize type
  nbd: Replace kthread_create with kthread_run
  nbd: Remove kernel internal header
  Documentation: nbd: Add list of module parameters
  Documentation: nbd: Reformat to allow more documentation
  NVMe: increase depth of admin queue
  nvme: Fix PRP list calculation for non-4k system page size
  NVMe: Fix blk-mq hot cpu notification
  NVMe: embedded iod mask cleanup
  NVMe: Freeze admin queue on device failure
  ...
 2015-04-16 22:05:27 -04:00
Linus Torvalds
8fa6f4974d Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration 
Pull mailbox updates from Jassi Brar.

* 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox: arm_mhu: add driver for ARM MHU controller
  Mailbox: Restructure and simplify PCC mailbox code
 2015-04-16 19:00:31 -04:00
Linus Torvalds
714d8e7e27 arm64 updates for 4.1: 
The main change here is a significant head.S rework that allows us to
 boot on machines with physical memory at a really high address without
 having to increase our mapped VA range. Other changes include:
 
 - AES performance boost for Cortex-A57
 - AArch32 (compat) userspace with 64k pages
 - Cortex-A53 erratum workaround for #845719
 - defconfig updates (new platforms, PCI, ...)
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "Here are the core arm64 updates for 4.1.

  Highlights include a significant rework to head.S (allowing us to boot
  on machines with physical memory at a really high address), an AES
  performance boost on Cortex-A57 and the ability to run a 32-bit
  userspace with 64k pages (although this requires said userspace to be
  built with a recent binutils).

  The head.S rework spilt over into KVM, so there are some changes under
  arch/arm/ which have been acked by Marc Zyngier (KVM co-maintainer).
  In particular, the linker script changes caused us some issues in
  -next, so there are a few merge commits where we had to apply fixes on
  top of a stable branch.

  Other changes include:

   - AES performance boost for Cortex-A57
   - AArch32 (compat) userspace with 64k pages
   - Cortex-A53 erratum workaround for #845719
   - defconfig updates (new platforms, PCI, ...)"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (39 commits)
  arm64: fix midr range for Cortex-A57 erratum 832075
  arm64: errata: add workaround for cortex-a53 erratum #845719
  arm64: Use bool function return values of true/false not 1/0
  arm64: defconfig: updates for 4.1
  arm64: Extract feature parsing code from cpu_errata.c
  arm64: alternative: Allow immediate branch as alternative instruction
  arm64: insn: Add aarch64_insn_decode_immediate
  ARM: kvm: round HYP section to page size instead of log2 upper bound
  ARM: kvm: assert on HYP section boundaries not actual code size
  arm64: head.S: ensure idmap_t0sz is visible
  arm64: pmu: add support for interrupt-affinity property
  dt: pmu: extend ARM PMU binding to allow for explicit interrupt affinity
  arm64: head.S: ensure visibility of page tables
  arm64: KVM: use ID map with increased VA range if required
  arm64: mm: increase VA range of identity map
  ARM: kvm: implement replacement for ld's LOG2CEIL()
  arm64: proc: remove unused cpu_get_pgd macro
  arm64: enforce x1|x2|x3 == 0 upon kernel entry as per boot protocol
  arm64: remove __calc_phys_offset
  arm64: merge __enable_mmu and __turn_mmu_on
  ...
 2015-04-16 13:58:29 -05:00
Linus Torvalds
d19d5efd8c powerpc updates for 4.1 
- Numerous minor fixes, cleanups etc.
 - More EEH work from Gavin to remove its dependency on device_nodes.
 - Memory hotplug implemented entirely in the kernel from Nathan Fontenot.
 - Removal of redundant CONFIG_PPC_OF by Kevin Hao.
 - Rewrite of VPHN parsing logic & tests from Greg Kurz.
 - A fix from Nish Aravamudan to reduce memory usage by clamping
   nodes_possible_map.
 - Support for pstore on powernv from Hari Bathini.
 - Removal of old powerpc specific byte swap routines by David Gibson.
 - Fix from Vasant Hegde to prevent the flash driver telling you it was flashing
   your firmware when it wasn't.
 - Patch from Ben Herrenschmidt to add an OPAL heartbeat driver.
 - Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan Stancek.
 - Some fixes for migration from Tyrel Datwyler.
 - A new syscall to switch the cpu endian by Michael Ellerman.
 - Large series from Wei Yang to implement SRIOV, reviewed and acked by Bjorn.
 - A fix for the OPAL sensor driver from Cédric Le Goater.
 - Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman.
 - Large series from Daniel Axtens to make our PCI hooks per PHB rather than per
   machine.
 - Small patch from Sam Bobroff to explicitly abort non-suspended transactions
   on syscalls, plus a test to exercise it.
 - Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu.
 - Small patch to enable the hard lockup detector from Anton Blanchard.
 - Fix from Dave Olson for missing L2 cache information on some CPUs.
 - Some fixes from Michael Ellerman to get Cell machines booting again.
 - Freescale updates from Scott: Highlights include BMan device tree nodes, an
   MSI erratum workaround, a couple minor performance improvements, config
   updates, and misc fixes/cleanup.
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Merge tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

Pull powerpc updates from Michael Ellerman:

 - Numerous minor fixes, cleanups etc.

 - More EEH work from Gavin to remove its dependency on device_nodes.

 - Memory hotplug implemented entirely in the kernel from Nathan
   Fontenot.

 - Removal of redundant CONFIG_PPC_OF by Kevin Hao.

 - Rewrite of VPHN parsing logic & tests from Greg Kurz.

 - A fix from Nish Aravamudan to reduce memory usage by clamping
   nodes_possible_map.

 - Support for pstore on powernv from Hari Bathini.

 - Removal of old powerpc specific byte swap routines by David Gibson.

 - Fix from Vasant Hegde to prevent the flash driver telling you it was
   flashing your firmware when it wasn't.

 - Patch from Ben Herrenschmidt to add an OPAL heartbeat driver.

 - Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan
   Stancek.

 - Some fixes for migration from Tyrel Datwyler.

 - A new syscall to switch the cpu endian by Michael Ellerman.

 - Large series from Wei Yang to implement SRIOV, reviewed and acked by
   Bjorn.

 - A fix for the OPAL sensor driver from Cédric Le Goater.

 - Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman.

 - Large series from Daniel Axtens to make our PCI hooks per PHB rather
   than per machine.

 - Small patch from Sam Bobroff to explicitly abort non-suspended
   transactions on syscalls, plus a test to exercise it.

 - Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu.

 - Small patch to enable the hard lockup detector from Anton Blanchard.

 - Fix from Dave Olson for missing L2 cache information on some CPUs.

 - Some fixes from Michael Ellerman to get Cell machines booting again.

 - Freescale updates from Scott: Highlights include BMan device tree
   nodes, an MSI erratum workaround, a couple minor performance
   improvements, config updates, and misc fixes/cleanup.

* tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (196 commits)
  powerpc/powermac: Fix build error seen with powermac smp builds
  powerpc/pseries: Fix compile of memory hotplug without CONFIG_MEMORY_HOTREMOVE
  powerpc: Remove PPC32 code from pseries specific find_and_init_phbs()
  powerpc/cell: Fix iommu breakage caused by controller_ops change
  powerpc/eeh: Fix crash in eeh_add_device_early() on Cell
  powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH
  powerpc/perf/hv-24x7: Fail 24x7 initcall if create_events_from_catalog() fails
  powerpc/pseries: Correct memory hotplug locking
  powerpc: Fix missing L2 cache size in /sys/devices/system/cpu
  powerpc: Add ppc64 hard lockup detector support
  oprofile: Disable oprofile NMI timer on ppc64
  powerpc/perf/hv-24x7: Add missing put_cpu_var()
  powerpc/perf/hv-24x7: Break up single_24x7_request
  powerpc/perf/hv-24x7: Define update_event_count()
  powerpc/perf/hv-24x7: Whitespace cleanup
  powerpc/perf/hv-24x7: Define add_event_to_24x7_request()
  powerpc/perf/hv-24x7: Rename hv_24x7_event_update
  powerpc/perf/hv-24x7: Move debug prints to separate function
  powerpc/perf/hv-24x7: Drop event_24x7_request()
  powerpc/perf/hv-24x7: Use pr_devel() to log message
  ...

Conflicts:
	tools/testing/selftests/powerpc/Makefile
	tools/testing/selftests/powerpc/tm/Makefile
 2015-04-16 13:53:32 -05:00
Vince Bridgers
13967f0c2a stmmac: Add properties for transmit and receive fifo sizes 
The Synopsys stmmac fifo sizes are configurable, and need to be known
in order to configure certain controller features. This patch adds
tx-fifo-depth and rx-fifo-depth properties to the stmmac document
file.

Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2015-04-16 13:58:42 -04:00
Mark Rutland
4155fc07fa Doc: dt: arch_timer: discourage clock-frequency use 
The ARM Generic Timer (AKA the architected timer, arm_arch_timer)
features a CPU register (CNTFRQ) which firmware is intended to
initialize, and non-secure software can read to determine the frequency
of the timer. On CPUs with secure state, this register cannot be written
from non-secure states.

The firmware of early SoCs featuring the timer did not correctly
initialize CNTFRQ correctly on all CPUs, requiring the frequency to be
described in DT as a workaround. This workaround is not complete however
as it is exposed to all software in a privileged non-secure mode
(including guests running under a hypervisor). The firmware and DTs for
recent SoCs have followed the example set by these early SoCs.

This patch updates the arch timer binding documentation to make it
clearer that the use of the clock-frequency property is a poor
work-around. The MMIO generic timer binding is similarly updated, though
this is less of a concern as there is generally no need to expose the
MMIO timers to guest OSs.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
 2015-04-16 09:08:45 -05:00
Christoph Hellwig
65204c84d7 target: fix tcm_mod_builder.py 
Fix a misplaced comma I introduced.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
 2015-04-15 22:47:28 -07:00
Linus Torvalds
eea3a00264 Merge branch 'akpm' (patches from Andrew) 
Merge second patchbomb from Andrew Morton:

 - the rest of MM

 - various misc bits

 - add ability to run /sbin/reboot at reboot time

 - printk/vsprintf changes

 - fiddle with seq_printf() return value

* akpm: (114 commits)
  parisc: remove use of seq_printf return value
  lru_cache: remove use of seq_printf return value
  tracing: remove use of seq_printf return value
  cgroup: remove use of seq_printf return value
  proc: remove use of seq_printf return value
  s390: remove use of seq_printf return value
  cris fasttimer: remove use of seq_printf return value
  cris: remove use of seq_printf return value
  openrisc: remove use of seq_printf return value
  ARM: plat-pxa: remove use of seq_printf return value
  nios2: cpuinfo: remove use of seq_printf return value
  microblaze: mb: remove use of seq_printf return value
  ipc: remove use of seq_printf return value
  rtc: remove use of seq_printf return value
  power: wakeup: remove use of seq_printf return value
  x86: mtrr: if: remove use of seq_printf return value
  linux/bitmap.h: improve BITMAP_{LAST,FIRST}_WORD_MASK
  MAINTAINERS: CREDITS: remove Stefano Brivio from B43
  .mailmap: add Ricardo Ribalda
  CREDITS: add Ricardo Ribalda Delgado
  ...
 2015-04-15 16:39:15 -07:00
Geert Uytterhoeven
900cca2944 lib/vsprintf: add %pC{,n,r} format specifiers for clocks 
Add format specifiers for printing struct clk:
  - '%pC' or '%pCn': name (Common Clock Framework) or address (legacy
    clock framework) of the clock,
  - '%pCr': rate of the clock.

[akpm@linux-foundation.org: omit code if !CONFIG_HAVE_CLK]
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:23 -07:00
Geert Uytterhoeven
e8a7ba5f5c lib/vsprintf: Move integer format types to the top 
Move the format types for 64-bit integers and configurable size integers
to the top, so they're next to the other integer format types.  While at
it, add the missing format types for s32 and u32.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:23 -07:00
Geert Uytterhoeven
7330660ed2 lib/vsprintf: document %p parameters passed by reference 
This patch series improves the documentation for printk() formats, and
adds support for printing clocks.  The latter has always been a hassle if
you wanted to support both the common and legacy clock frameworks.

  - '%pC' and '%pCn' print the name (Common Clock Framework) or address
    (legacy clock framework) of a clock,
  - '%pCr' prints the current clock rate.

This patch (of 3):

Make sure all %p extensions that take parameters by references are
documented to do so.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:23 -07:00
Sergey Senozhatsky
8f7d282c71 zram: deprecate zram attrs sysfs nodes 
Add Documentation/ABI/obsolete/sysfs-block-zram file and list obsolete and
deprecated attributes there.  The patch also adds additional information
to zram documentation and describes the basic strategy:

- the existing RW nodes will be downgraded to WO nodes (in 4.11)
- deprecated RO sysfs nodes will eventually be removed (in 4.11)

Users will be additionally notified about deprecated attr usage by
pr_warn_once() (added to every deprecated attr _show()), as suggested by
Minchan Kim.

User space is advised to use zram<id>/stat, zram<id>/io_stat and
zram<id>/mm_stat files.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reported-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:21 -07:00
Sergey Senozhatsky
4f2109f608 zram: export new 'mm_stat' sysfs attrs 
Per-device `zram<id>/mm_stat' file provides mm statistics of a particular
zram device in a format similar to block layer statistics.  The file
consists of a single line and represents the following stats (separated by
whitespace):

        orig_data_size
        compr_data_size
        mem_used_total
        mem_limit
        mem_used_max
        zero_pages
        num_migrated

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:21 -07:00
Sergey Senozhatsky
2f6a3bed73 zram: export new 'io_stat' sysfs attrs 
Per-device `zram<id>/io_stat' file provides accumulated I/O statistics of
particular zram device in a format similar to block layer statistics.  The
file consists of a single line and represents the following stats
(separated by whitespace):

        failed_reads
        failed_writes
        invalid_io
        notify_free

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:21 -07:00
Sergey Senozhatsky
77ba015f9d zram: describe device attrs in documentation 
Briefly describe exported device stat attrs in zram documentation.  We
will eventually get rid of per-stat sysfs nodes and, thus, clean up
Documentation/ABI/testing/sysfs-block-zram file, which is the only source
of information about device sysfs nodes.

Add `num_migrated' description, since there is no independent
`num_migrated' sysfs node (and no corresponding sysfs-block-zram entry),
it will be exported via zram<id>/mm_stat file.

At this point we can provide minimal description, because sysfs-block-zram
still contains detailed information.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:21 -07:00
Sergey Senozhatsky
10447b60be zram: remove `num_migrated' device attr 
This patch introduces rework to zram stats.  We have per-stat sysfs nodes,
and it makes things a bit hard to use in user space: it doesn't give an
immediate stats 'snapshot', it requires user space to use more syscalls -
open, read, close for every stat file, with appropriate error checks on
every step, etc.

First, zram now accounts block layer statistics, available in
/sys/block/zram<id>/stat and /proc/diskstats files.  So some new stats are
available (see Documentation/block/stat.txt), besides, zram's activities
now can be monitored by sysstat's iostat or similar tools.

Example:
cat /sys/block/zram0/stat
248     0    1984    0   251029     0  2008232   5120   0   5116   5116

Second, group currently exported on per-stat basis nodes into two
categories (files):

-- zram<id>/io_stat
accumulates device's IO stats, that are not accounted by block layer,
and contains:
        failed_reads
        failed_writes
        invalid_io
        notify_free

Example:
cat /sys/block/zram0/io_stat
0        0        0   652572

-- zram<id>/mm_stat
accumulates zram mm stats and contains:
        orig_data_size
        compr_data_size
        mem_used_total
        mem_limit
        mem_used_max
        zero_pages
        num_migrated

Example:
cat /sys/block/zram0/mm_stat
434634752 270288572 279158784        0 579895296    15060        0

per-stat sysfs nodes are now considered to be deprecated and we plan to
remove them (and clean up some of the existing stat code) in two years (as
of now, there is no warning printed to syslog about deprecated stats being
used).  User space is advised to use the above mentioned 3 files.

This patch (of 7):

Remove sysfs `num_migrated' attribute.  We are moving away from per-stat
device attrs towards 3 stat files that will accumulate io and mm stats in
a format similar to block layer statistics in /sys/block/<dev>/stat.  That
will be easier to use in user space, and reduce the number of syscalls
needed to read zram device statistics.

`num_migrated' will return back in zram<id>/mm_stat file.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:21 -07:00
Minchan Kim
d02be50dba zsmalloc: zsmalloc documentation 
Create zsmalloc doc which explains design concept and stat information.

Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Juneho Choi <juno.choi@lge.com>
Cc: Gunho Lee <gunho.lee@lge.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:21 -07:00
Minchan Kim
4e3ba87845 zram: support compaction 
Now that zsmalloc supports compaction, zram can use it.  For the first
step, this patch exports compact knob via sysfs so user can do compaction
via "echo 1 > /sys/block/zram0/compact".

Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Juneho Choi <juno.choi@lge.com>
Cc: Gunho Lee <gunho.lee@lge.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Seth Jennings <sjennings@variantweb.net>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Jerome Marchand <jmarchan@redhat.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:21 -07:00
Boaz Harrosh
dd9061846a mm: new pfn_mkwrite same as page_mkwrite for VM_PFNMAP 
This will allow FS that uses VM_PFNMAP | VM_MIXEDMAP (no page structs) to
get notified when access is a write to a read-only PFN.

This can happen if we mmap() a file then first mmap-read from it to
page-in a read-only PFN, than we mmap-write to the same page.

We need this functionality to fix a DAX bug, where in the scenario above
we fail to set ctime/mtime though we modified the file.  An xfstest is
attached to this patchset that shows the failure and the fix.  (A DAX
patch will follow)

This functionality is extra important for us, because upon dirtying of a
pmem page we also want to RDMA the page to a remote cluster node.

We define a new pfn_mkwrite and do not reuse page_mkwrite because
  1 - The name ;-)
  2 - But mainly because it would take a very long and tedious
      audit of all page_mkwrite functions of VM_MIXEDMAP/VM_PFNMAP
      users. To make sure they do not now CRASH. For example current
      DAX code (which this is for) would crash.
      If we would want to reuse page_mkwrite, We will need to first
      patch all users, so to not-crash-on-no-page. Then enable this
      patch. But even if I did that I would not sleep so well at night.
      Adding a new vector is the safest thing to do, and is not that
      expensive. an extra pointer at a static function vector per driver.
      Also the new vector is better for performance, because else we
      Will call all current Kernel vectors, so to:
        check-ha-no-page-do-nothing and return.

No need to call it from do_shared_fault because do_wp_page is called to
change pte permissions anyway.

Signed-off-by: Yigal Korman <yigal@plexistor.com>
Signed-off-by: Boaz Harrosh <boaz@plexistor.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:20 -07:00
David Rientjes
80d6b94bd6 mm, doc: cleanup and clarify munmap behavior for hugetlb memory 
munmap(2) of hugetlb memory requires a length that is hugepage aligned,
otherwise it may fail.  Add this to the documentation.

This also cleans up the documentation and separates it into logical units:
one part refers to MAP_HUGETLB and another part refers to requirements for
shared memory segments.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Shuah Khan <shuahkh@osg.samsung.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Joern Engel <joern@logfs.org>
Cc: Jianguo Wu <wujianguo@huawei.com>
Cc: Eric B Munson <emunson@akamai.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:19 -07:00
Mike Kravetz
8c9b970335 hugetlbfs: document min_size mount option and cleanup 
Add min_size mount option to the hugetlbfs documentation.  Also, add the
missing pagesize option and mention that size can be specified as bytes or
a percentage of huge page pool.

Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Aneesh Kumar <aneesh.kumar@linux.vnet.ibm.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:18 -07:00
Eric B Munson
922c0551a7 Documentation/vm/unevictable-lru.txt: document interaction between compaction and the unevictable LRU 
The memory compaction code uses the migration code to do most of the
work in compaction.  However, the compaction code interacts with the
unevictable LRU differently than migration code and this difference
should be noted in the documentation.

[akpm@linux-foundation.org: identify /proc/sys/vm/compact_unevictable directly]
Signed-off-by: Eric B Munson <emunson@akamai.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:17 -07:00
Eric B Munson
5bbe3547aa mm: allow compaction of unevictable pages 
Currently, pages which are marked as unevictable are protected from
compaction, but not from other types of migration.  The POSIX real time
extension explicitly states that mlock() will prevent a major page
fault, but the spirit of this is that mlock() should give a process the
ability to control sources of latency, including minor page faults.
However, the mlock manpage only explicitly says that a locked page will
not be written to swap and this can cause some confusion.  The
compaction code today does not give a developer who wants to avoid swap
but wants to have large contiguous areas available any method to achieve
this state.  This patch introduces a sysctl for controlling compaction
behavior with respect to the unevictable lru.  Users who demand no page
faults after a page is present can set compact_unevictable_allowed to 0
and users who need the large contiguous areas can enable compaction on
locked memory by leaving the default value of 1.

To illustrate this problem I wrote a quick test program that mmaps a
large number of 1MB files filled with random data.  These maps are
created locked and read only.  Then every other mmap is unmapped and I
attempt to allocate huge pages to the static huge page pool.  When the
compact_unevictable_allowed sysctl is 0, I cannot allocate hugepages
after fragmenting memory.  When the value is set to 1, allocations
succeed.

Signed-off-by: Eric B Munson <emunson@akamai.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Christoph Lameter <cl@linux.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-15 16:35:17 -07:00
Linus Torvalds
e7c8241243 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 
Pull LED subsystem updates from Bryan Wu:
 "In this cycle, we merged some fix and update for LED Flash class
  driver.  Then the core code of LED Flash class driver is in the kernel
  now.  Moreover, we also got some bug fixes, code cleanup and new
  drivers for LED controllers"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  leds: Don't treat the LED name as a format string
  leds: Use log level warn instead of info when telling about a name clash
  leds/led-class: Handle LEDs with the same name
  leds: lp8860: Fix typo in MODULE_DESCRIPTION in leds-lp8860.c
  leds: lp8501: Fix typo in MODULE_DESCRIPTION in leds-lp8501.c
  DT: leds: Add uniqueness requirement for 'label' property.
  dt-binding: leds: Add common LED DT bindings macros
  leds: add Qualcomm PM8941 WLED driver
  leds: add DT binding for Qualcomm PM8941 WLED block
  leds: pca963x: Add missing initialiation of struct led_info.flags
  leds: flash: Fix the size of sysfs_groups array
  Documentation: leds: Add description of LED Flash class extension
  leds: flash: document sysfs interface
  leds: flash: Remove synchronized flash strobe feature
  leds: Introduce devres helper for led_classdev_register
  leds: lp8860: make use of devm_gpiod_get_optional
  leds: Let the binding document example for leds-gpio follow the gpio bindings
  leds: flash: remove stray include directive
  leds: leds-pwm: drop one pwm_get_period() call
 2015-04-15 15:48:28 -07:00
Linus Torvalds
d0a3997c0c sound updates for 4.1-rc1 
There have been major modernization with the standard bus: in ALSA
 sequencer core and HD-audio.  Also, HD-audio receives the regmap
 support replacing the in-house cache register cache code.  These
 changes shouldn't impact the existing behavior, but rather
 refactoring.
 
 In addition, HD-audio got the code split to a core library part and
 the "legacy" driver parts.  This is a preliminary work for adapting
 the upcoming ASoC HD-audio driver, and the whole transition is still
 work in progress, likely finished in 4.1.
 
 Along with them, there are many updates in ASoC area as usual, too:
 lots of cleanups, Intel code shuffling, etc.
 
 Here are some highlights:
 
 ALSA core:
 - PCM: the audio timestamp / wallclock enhancement
 - PCM: fixes in DPCM management
 - Fixes / cleanups of user-space control element management
 - Sequencer: modernization using the standard bus
 
 HD-audio:
 - Modernization using the standard bus
 - Regmap support
 - Use standard runtime PM for codec power saving
 - Widget-path based power-saving for IDT, VIA and Realtek codecs
 - Reorganized sysfs entries for each codec object
 - More Dell headset support
 
 ASoC:
 - Move of jack registration to the card level
 - Lots of ASoC cleanups, mainly moving things from the CODEC level
   to the card level
 - Support for DAPM routes specified by both the machine driver and DT
 - Continuing improvements to rcar
 - pcm512x enhacements
 - Intel platforms updates
 - rt5670 updates / fixes
 - New platforms / devices: some non-DSP Qualcomm platforms, Google's
   Storm platform, Maxmim MAX98925 CODECs and the Ingenic JZ4780 SoC
 
 Misc:
 - ice1724: Improved ESI W192M support
 - emu10k1: Emu 1010 fixes/enhancement
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Merge tag 'sound-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "There have been major modernization with the standard bus: in ALSA
  sequencer core and HD-audio.  Also, HD-audio receives the regmap
  support replacing the in-house cache register cache code.  These
  changes shouldn't impact the existing behavior, but rather
  refactoring.

  In addition, HD-audio got the code split to a core library part and
  the "legacy" driver parts.  This is a preliminary work for adapting
  the upcoming ASoC HD-audio driver, and the whole transition is still
  work in progress, likely finished in 4.1.

  Along with them, there are many updates in ASoC area as usual, too:
  lots of cleanups, Intel code shuffling, etc.

  Here are some highlights:

  ALSA core:
   - PCM: the audio timestamp / wallclock enhancement
   - PCM: fixes in DPCM management
   - Fixes / cleanups of user-space control element management
   - Sequencer: modernization using the standard bus

  HD-audio:
   - Modernization using the standard bus
   - Regmap support
   - Use standard runtime PM for codec power saving
   - Widget-path based power-saving for IDT, VIA and Realtek codecs
   - Reorganized sysfs entries for each codec object
   - More Dell headset support

  ASoC:
   - Move of jack registration to the card level
   - Lots of ASoC cleanups, mainly moving things from the CODEC level to
     the card level
   - Support for DAPM routes specified by both the machine driver and DT
   - Continuing improvements to rcar
   - pcm512x enhacements
   - Intel platforms updates
   - rt5670 updates / fixes
   - New platforms / devices: some non-DSP Qualcomm platforms, Google's
     Storm platform, Maxmim MAX98925 CODECs and the Ingenic JZ4780 SoC

  Misc:
   - ice1724: Improved ESI W192M support
   - emu10k1: Emu 1010 fixes/enhancement"

* tag 'sound-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (411 commits)
  ALSA: hda - set GET bit when adding a vendor verb to the codec regmap
  ALSA: hda/realtek - Enable the ALC292 dock fixup on the Thinkpad T450
  ALSA: hda - Fix another race in runtime PM refcounting
  ALSA: hda - Expose codec type sysfs
  ALSA: ctl: fix to handle several elements added by one operation for userspace element
  ASoC: Intel: fix array_size.cocci warnings
  ASoC: n810: Automatically disconnect non-connected pins
  ASoC: n810: Consistently pass the card DAPM context to n810_ext_control()
  ASoC: davinci-evm: Use card DAPM context to access widgets
  ASoC: mop500_ab8500: Use card DAPM context to access widgets
  ASoC: wm1133-ev1: Use card DAPM context to access widgets
  ASoC: atmel: Improve machine driver compile test coverage
  ASoC: atmel: Add dependency to SND_SOC_I2C_AND_SPI where necessary
  ALSA: control: Fix a typo of SNDRV_CTL_ELEM_ACCESS_TLV_* with SNDRV_CTL_TLV_OP_*
  ALSA: usb-audio: Don't attempt to get Microsoft Lifecam Cinema sample rate
  ASoC: rnsd: fix build regression without CONFIG_OF
  ALSA: emu10k1: add toggles for E-mu 1010 optical ports
  ALSA: ctl: fill identical information to return value when adding userspace elements
  ALSA: ctl: fix a bug to return no identical information in info operation for userspace controls
  ALSA: ctl: confirm to return all identical information in 'activate' event
  ...
 2015-04-15 15:41:41 -07:00
Linus Torvalds
fa927894bb Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull second vfs update from Al Viro:
 "Now that net-next went in...  Here's the next big chunk - killing
  ->aio_read() and ->aio_write().

  There'll be one more pile today (direct_IO changes and
  generic_write_checks() cleanups/fixes), but I'd prefer to keep that
  one separate"

* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits)
  ->aio_read and ->aio_write removed
  pcm: another weird API abuse
  infinibad: weird APIs switched to ->write_iter()
  kill do_sync_read/do_sync_write
  fuse: use iov_iter_get_pages() for non-splice path
  fuse: switch to ->read_iter/->write_iter
  switch drivers/char/mem.c to ->read_iter/->write_iter
  make new_sync_{read,write}() static
  coredump: accept any write method
  switch /dev/loop to vfs_iter_write()
  serial2002: switch to __vfs_read/__vfs_write
  ashmem: use __vfs_read()
  export __vfs_read()
  autofs: switch to __vfs_write()
  new helper: __vfs_write()
  switch hugetlbfs to ->read_iter()
  coda: switch to ->read_iter/->write_iter
  ncpfs: switch to ->read_iter/->write_iter
  net/9p: remove (now-)unused helpers
  p9_client_attach(): set fid->uid correctly
  ...
 2015-04-15 13:22:56 -07:00
Stephen Hemminger
b962dc0a48 rdma: replace deprecated ifconfig in doc 
The ifconfig command has been deprecated for many years.
To encourage new users not to continue using it and learning
iproute2; the ifconfig should not be used in examples.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
 2015-04-15 16:06:39 -04:00
Arnd Bergmann
30ecc84eea Merge branch 'omap/dt' into next/late 
As pointed out by Stephen Rothwell, commit e52117638b ("ARM: dts:
omap3: Add DT entries for OMAP 3 ISP") conflicts with b8845074cf
("ARM: dts: omap3: add minimal l4 bus layout with control module support")
in non-obvious ways, causing a build failure when both patches
are present.

This merges the two branches that introduce the respective changes
into the next/late branch to resolve the way that Stephen suggested,
as confirmed by Tony.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lkml.org/lkml/2015/4/6/436
Acked-by: Tony Lindgren <tony@atomide.com>
 2015-04-15 21:41:13 +02:00
Linus Torvalds
d488d3a4ce Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 
Pull security subsystem updates from James Morris:
 "Highlights for this window:

   - improved AVC hashing for SELinux by John Brooks and Stephen Smalley

   - addition of an unconfined label to Smack

   - Smack documentation update

   - TPM driver updates"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (28 commits)
  lsm: copy comm before calling audit_log to avoid race in string printing
  tomoyo: Do not generate empty policy files
  tomoyo: Use if_changed when generating builtin-policy.h
  tomoyo: Use bin2c to generate builtin-policy.h
  selinux: increase avtab max buckets
  selinux: Use a better hash function for avtab
  selinux: convert avtab hash table to flex_array
  selinux: reconcile security_netlbl_secattr_to_sid() and mls_import_netlbl_cat()
  selinux: remove unnecessary pointer reassignment
  Smack: Updates for Smack documentation
  tpm/st33zp24/spi: Add missing device table for spi phy.
  tpm/st33zp24: Add proper wait for ordinal duration in case of irq mode
  smack: Fix gcc warning from unused smack_syslog_lock mutex in smackfs.c
  Smack: Allow an unconfined label in bringup mode
  Smack: getting the Smack security context of keys
  Smack: Assign smack_known_web as default smk_in label for kernel thread's socket
  tpm/tpm_infineon: Use struct dev_pm_ops for power management
  MAINTAINERS: Add Jason as designated reviewer for TPM
  tpm: Update KConfig text to include TPM2.0 FIFO chips
  tpm/st33zp24/dts/st33zp24-spi: Add dts documentation for st33zp24 spi phy
  ...
 2015-04-15 11:08:27 -07:00
Hans de Goede
2310568f57 Input: alps - document separate pointstick button bits for V2 devices 
Non interleaved dualpoint v2 devices have separate pointstick button bits,
document this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
 2015-04-15 10:52:49 -07:00
Linus Torvalds
cb906953d2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 
Pull crypto update from Herbert Xu:
 "Here is the crypto update for 4.1:

  New interfaces:
   - user-space interface for AEAD
   - user-space interface for RNG (i.e., pseudo RNG)

  New hashes:
   - ARMv8 SHA1/256
   - ARMv8 AES
   - ARMv8 GHASH
   - ARM assembler and NEON SHA256
   - MIPS OCTEON SHA1/256/512
   - MIPS img-hash SHA1/256 and MD5
   - Power 8 VMX AES/CBC/CTR/GHASH
   - PPC assembler AES, SHA1/256 and MD5
   - Broadcom IPROC RNG driver

  Cleanups/fixes:
   - prevent internal helper algos from being exposed to user-space
   - merge common code from assembly/C SHA implementations
   - misc fixes"

* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (169 commits)
  crypto: arm - workaround for building with old binutils
  crypto: arm/sha256 - avoid sha256 code on ARMv7-M
  crypto: x86/sha512_ssse3 - move SHA-384/512 SSSE3 implementation to base layer
  crypto: x86/sha256_ssse3 - move SHA-224/256 SSSE3 implementation to base layer
  crypto: x86/sha1_ssse3 - move SHA-1 SSSE3 implementation to base layer
  crypto: arm64/sha2-ce - move SHA-224/256 ARMv8 implementation to base layer
  crypto: arm64/sha1-ce - move SHA-1 ARMv8 implementation to base layer
  crypto: arm/sha2-ce - move SHA-224/256 ARMv8 implementation to base layer
  crypto: arm/sha256 - move SHA-224/256 ASM/NEON implementation to base layer
  crypto: arm/sha1-ce - move SHA-1 ARMv8 implementation to base layer
  crypto: arm/sha1_neon - move SHA-1 NEON implementation to base layer
  crypto: arm/sha1 - move SHA-1 ARM asm implementation to base layer
  crypto: sha512-generic - move to generic glue implementation
  crypto: sha256-generic - move to generic glue implementation
  crypto: sha1-generic - move to generic glue implementation
  crypto: sha512 - implement base layer for SHA-512
  crypto: sha256 - implement base layer for SHA-256
  crypto: sha1 - implement base layer for SHA-1
  crypto: api - remove instance when test failed
  crypto: api - Move alg ref count init to crypto_check_alg
  ...
 2015-04-15 10:42:15 -07:00
Milan Broz
e44f23b32d dm crypt: update URLs to new cryptsetup project page 
Cryptsetup home page moved to GitLab.
Also remove link to abandonded Truecrypt page.

Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 2015-04-15 12:10:24 -04:00
Josef Bacik
0e9cebe724 dm: add log writes target 
Introduce a new target that is meant for file system developers to test file
system integrity at particular points in the life of a file system.  We capture
all write requests and associated data and log them to a separate device
for later replay.  There is a userspace utility to do this replay.  The
idea behind this is to give file system developers a tool to verify that
the file system is always consistent.

Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: Zach Brown <zab@zabbo.net>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 2015-04-15 12:10:24 -04:00
Sami Tolvanen
65ff5b7ddf dm verity: add error handling modes for corrupted blocks 
Add device specific modes to dm-verity to specify how corrupted
blocks should be handled.  The following modes are defined:

  - DM_VERITY_MODE_EIO is the default behavior, where reading a
    corrupted block results in -EIO.

  - DM_VERITY_MODE_LOGGING only logs corrupted blocks, but does
    not block the read.

  - DM_VERITY_MODE_RESTART calls kernel_restart when a corrupted
    block is discovered.

In addition, each mode sends a uevent to notify userspace of
corruption and to allow further recovery actions.

The driver defaults to previous behavior (DM_VERITY_MODE_EIO)
and other modes can be enabled with an additional parameter to
the verity table.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 2015-04-15 12:10:22 -04:00
Mike Snitzer
0e0e32c16c dm thin: remove stale 'trim' message documentation 
The 'trim' message wasn't ever implemented.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 2015-04-15 12:10:22 -04:00
Mike Snitzer
17e149b8f7 dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr 
Request-based DM's blk-mq support defaults to off; but a user can easily
change the default using the dm_mod.use_blk_mq module/boot option.

Also, you can check what mode a given request-based DM device is using
with: cat /sys/block/dm-X/dm/use_blk_mq

This change enabled further cleanup and reduced work (e.g. the
md->io_pool and md->rq_pool isn't created if using blk-mq).

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 2015-04-15 12:10:17 -04:00
Mike Snitzer
0ce65797a7 dm: impose configurable deadline for dm_request_fn's merge heuristic 
Otherwise, for sequential workloads, the dm_request_fn can allow
excessive request merging at the expense of increased service time.

Add a per-device sysfs attribute to allow the user to control how long a
request, that is a reasonable merge candidate, can be queued on the
request queue.  The resolution of this request dispatch deadline is in
microseconds (ranging from 1 to 100000 usecs), to set a 20us deadline:
  echo 20 > /sys/block/dm-7/dm/rq_based_seq_io_merge_deadline

The dm_request_fn's merge heuristic and associated extra accounting is
disabled by default (rq_based_seq_io_merge_deadline is 0).

This sysfs attribute is not applicable to bio-based DM devices so it
will only ever report 0 for them.

By allowing a request to remain on the queue it will block others
requests on the queue.  But introducing a short dequeue delay has proven
very effective at enabling certain sequential IO workloads on really
fast, yet IOPS constrained, devices to build up slightly larger IOs --
yielding 90+% throughput improvements.  Having precise control over the
time taken to wait for larger requests to build affords control beyond
that of waiting for certain IO sizes to accumulate (which would require
a deadline anyway).  This knob will only ever make sense with sequential
IO workloads and the particular value used is storage configuration
specific.

Given the expected niche use-case for when this knob is useful it has
been deemed acceptable to expose this relatively crude method for
crafting optimal IO on specific storage -- especially given the solution
is simple yet effective.  In the context of DM multipath, it is
advisable to tune this sysfs attribute to a value that offers the best
performance for the common case (e.g. if 4 paths are expected active,
tune for that; if paths fail then performance may be slightly reduced).

Alternatives were explored to have request-based DM autotune this value
(e.g. if/when paths fail) but they were quickly deemed too fragile and
complex to warrant further design and development time.  If this problem
proves more common as faster storage emerges we'll have to look at
elevating a generic solution into the block core.

Tested-by: Shiva Krishna Merla <shivakrishna.merla@netapp.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 2015-04-15 12:10:15 -04:00
Linus Torvalds
6c373ca893 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 
Pull networking updates from David Miller:

 1) Add BQL support to via-rhine, from Tino Reichardt.

 2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers
    can support hw switch offloading.  From Floria Fainelli.

 3) Allow 'ip address' commands to initiate multicast group join/leave,
    from Madhu Challa.

 4) Many ipv4 FIB lookup optimizations from Alexander Duyck.

 5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel
    Borkmann.

 6) Remove the ugly compat support in ARP for ugly layers like ax25,
    rose, etc.  And use this to clean up the neigh layer, then use it to
    implement MPLS support.  All from Eric Biederman.

 7) Support L3 forwarding offloading in switches, from Scott Feldman.

 8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed
    up route lookups even further.  From Alexander Duyck.

 9) Many improvements and bug fixes to the rhashtable implementation,
    from Herbert Xu and Thomas Graf.  In particular, in the case where
    an rhashtable user bulk adds a large number of items into an empty
    table, we expand the table much more sanely.

10) Don't make the tcp_metrics hash table per-namespace, from Eric
    Biederman.

11) Extend EBPF to access SKB fields, from Alexei Starovoitov.

12) Split out new connection request sockets so that they can be
    established in the main hash table.  Much less false sharing since
    hash lookups go direct to the request sockets instead of having to
    go first to the listener then to the request socks hashed
    underneath.  From Eric Dumazet.

13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk.

14) Support stable privacy address generation for RFC7217 in IPV6.  From
    Hannes Frederic Sowa.

15) Hash network namespace into IP frag IDs, also from Hannes Frederic
    Sowa.

16) Convert PTP get/set methods to use 64-bit time, from Richard
    Cochran.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits)
  fm10k: Bump driver version to 0.15.2
  fm10k: corrected VF multicast update
  fm10k: mbx_update_max_size does not drop all oversized messages
  fm10k: reset head instead of calling update_max_size
  fm10k: renamed mbx_tx_dropped to mbx_tx_oversized
  fm10k: update xcast mode before synchronizing multicast addresses
  fm10k: start service timer on probe
  fm10k: fix function header comment
  fm10k: comment next_vf_mbx flow
  fm10k: don't handle mailbox events in iov_event path and always process mailbox
  fm10k: use separate workqueue for fm10k driver
  fm10k: Set PF queues to unlimited bandwidth during virtualization
  fm10k: expose tx_timeout_count as an ethtool stat
  fm10k: only increment tx_timeout_count in Tx hang path
  fm10k: remove extraneous "Reset interface" message
  fm10k: separate PF only stats so that VF does not display them
  fm10k: use hw->mac.max_queues for stats
  fm10k: only show actual queues, not the maximum in hardware
  fm10k: allow creation of VLAN on default vid
  fm10k: fix unused warnings
  ...
 2015-04-15 09:00:47 -07:00
Linus Torvalds
bb0fd7ab09 Merge branch 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm 
Pull ARM updates from Russell King:
 "Included in this update are both some long term fixes and some new
  features.

  Fixes:

   - An integer overflow in the calculation of ELF_ET_DYN_BASE.

   - Avoiding OOMs for high-order IOMMU allocations

   - SMP requires the data cache to be enabled for synchronisation
     primitives to work, so prevent the CPU_DCACHE_DISABLE option being
     visible on SMP builds.

   - A bug going back 10+ years in the noMMU ARM94* CPU support code,
     where it corrupts registers.  Found by folk getting Linux running
     on their cameras.

   - Versatile Express needs an errata workaround enabled for CPU
     hot-unplug to work.

  Features:

   - Clean up module linker by handling out of range relocations
     separately from relocation cases we don't handle.

   - Fix a long term bug in the pci_mmap_page_range() code, which we
     hope won't impact userspace (we hope there's no users of the
     existing broken interface.)

   - Don't map DMA coherent allocations when we don't have a MMU.

   - Drop experimental status for SMP_ON_UP.

   - Warn when DT doesn't specify ePAPR mandatory cache properties.

   - Add documentation concerning how we find the start of physical
     memory for AUTO_ZRELADDR kernels, detailing why we have chosen the
     mask and the implications of changing it.

   - Updates from Ard Biesheuvel to address some issues with large
     kernels (such as allyesconfig) failing to link.

   - Allow hibernation to work on modern (ARMv7) CPUs - this appears to
     have never worked in the past on these CPUs.

   - Enable IRQ_SHOW_LEVEL, which changes the /proc/interrupts output
     format (hopefully without userspace breaking...  let's hope that if
     it causes someone a problem, they tell us.)

   - Fix tegra-ahb DT offsets.

   - Rework ARM errata 643719 code (and ARMv7 flush_cache_louis()/
     flush_dcache_all()) code to be more efficient, and enable this
     errata workaround by default for ARMv7+SMP CPUs.  This complements
     the Versatile Express fix above.

   - Rework ARMv7 context code for errata 430973, so that only Cortex A8
     CPUs are impacted by the branch target buffer flush when this
     errata is enabled.  Also update the help text to indicate that all
     r1p* A8 CPUs are impacted.

   - Switch ARM to the generic show_mem() implementation, it conveys all
     the information which we were already reporting.

   - Prevent slow timer sources being used for udelay() - timers running
     at less than 1MHz are not useful for this, and can cause udelay()
     to return immediately, without any wait.  Using such a slow timer
     is silly.

   - VDSO support for 32-bit ARM, mainly for gettimeofday() using the
     ARM architected timer.

   - Perf support for Scorpion performance monitoring units"

vdso semantic conflict fixed up as per linux-next.

* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (52 commits)
  ARM: update errata 430973 documentation to cover Cortex A8 r1p*
  ARM: ensure delay timer has sufficient accuracy for delays
  ARM: switch to use the generic show_mem() implementation
  ARM: proc-v7: avoid errata 430973 workaround for non-Cortex A8 CPUs
  ARM: enable ARM errata 643719 workaround by default
  ARM: cache-v7: optimise test for Cortex A9 r0pX devices
  ARM: cache-v7: optimise branches in v7_flush_cache_louis
  ARM: cache-v7: consolidate initialisation of cache level index
  ARM: cache-v7: shift CLIDR to extract appropriate field before masking
  ARM: cache-v7: use movw/movt instructions
  ARM: allow 16-bit instructions in ALT_UP()
  ARM: proc-arm94*.S: fix setup function
  ARM: vexpress: fix CPU hotplug with CT9x4 tile.
  ARM: 8276/1: Make CPU_DCACHE_DISABLE depend on !SMP
  ARM: 8335/1: Documentation: DT bindings: Tegra AHB: document the legacy base address
  ARM: 8334/1: amba: tegra-ahb: detect and correct bogus base address
  ARM: 8333/1: amba: tegra-ahb: fix register offsets in the macros
  ARM: 8339/1: Enable CONFIG_GENERIC_IRQ_SHOW_LEVEL
  ARM: 8338/1: kexec: Relax SMP validation to improve DT compatibility
  ARM: 8337/1: mm: Do not invoke OOM for higher order IOMMU DMA allocations
  ...
 2015-04-14 21:03:26 -07:00
Linus Torvalds
2481bc7528 Power management and ACPI updates for v4.1-rc1 
- Generic PM domains support update including new PM domain
    callbacks to handle device initialization better (Russell King,
    Rafael J Wysocki, Kevin Hilman).
 
  - Unified device properties API update including a new mechanism
    for accessing data provided by platform initialization code
    (Rafael J Wysocki, Adrian Hunter).
 
  - ARM cpuidle update including ARM32/ARM64 handling consolidation
    (Daniel Lezcano).
 
  - intel_idle update including support for the Silvermont Core in
    the Baytrail SOC and for the Airmont Core in the Cherrytrail and
    Braswell SOCs (Len Brown, Mathias Krause).
 
  - New cpufreq driver for Hisilicon ACPU (Leo Yan).
 
  - intel_pstate update including support for the Knights Landing
    chip (Dasaratharaman Chandramouli, Kristen Carlson Accardi).
 
  - QorIQ cpufreq driver update (Tang Yuantian, Arnd Bergmann).
 
  - powernv cpufreq driver update (Shilpasri G Bhat).
 
  - devfreq update including Tegra support changes (Tomeu Vizoso,
    MyungJoo Ham, Chanwoo Choi).
 
  - powercap RAPL (Running-Average Power Limit) driver update
    including support for Intel Broadwell server chips (Jacob Pan,
    Mathias Krause).
 
  - ACPI device enumeration update related to the handling of the
    special PRP0001 device ID allowing DT-style 'compatible' property
    to be used for ACPI device identification (Rafael J Wysocki).
 
  - ACPI EC driver update including limited _DEP support (Lan Tianyu,
    Lv Zheng).
 
  - ACPI backlight driver update including a new mechanism to allow
    native backlight handling to be forced on non-Windows 8 systems
    and a new quirk for Lenovo Ideapad Z570 (Aaron Lu, Hans de Goede).
 
  - New Windows Vista compatibility quirk for Sony VGN-SR19XN (Chen Yu).
 
  - Assorted ACPI fixes and cleanups (Aaron Lu, Martin Kepplinger,
    Masanari Iida, Mika Westerberg, Nan Li, Rafael J Wysocki).
 
  - Fixes related to suspend-to-idle for the iTCO watchdog driver and
    the ACPI core system suspend/resume code (Rafael J Wysocki, Chen Yu).
 
  - PM tracing support for the suspend phase of system suspend/resume
    transitions (Zhonghui Fu).
 
  - Configurable delay for the system suspend/resume testing facility
    (Brian Norris).
 
  - PNP subsystem cleanups (Peter Huewe, Rafael J Wysocki).
 
 /
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Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "These are mostly fixes and cleanups all over, although there are a few
  items that sort of fall into the new feature category.

  First off, we have new callbacks for PM domains that should help us to
  handle some issues related to device initialization in a better way.

  There also is some consolidation in the unified device properties API
  area allowing us to use that inferface for accessing data coming from
  platform initialization code in addition to firmware-provided data.

  We have some new device/CPU IDs in a few drivers, support for new
  chips and a new cpufreq driver too.

  Specifics:

   - Generic PM domains support update including new PM domain callbacks
     to handle device initialization better (Russell King, Rafael J
     Wysocki, Kevin Hilman)

   - Unified device properties API update including a new mechanism for
     accessing data provided by platform initialization code (Rafael J
     Wysocki, Adrian Hunter)

   - ARM cpuidle update including ARM32/ARM64 handling consolidation
     (Daniel Lezcano)

   - intel_idle update including support for the Silvermont Core in the
     Baytrail SOC and for the Airmont Core in the Cherrytrail and
     Braswell SOCs (Len Brown, Mathias Krause)

   - New cpufreq driver for Hisilicon ACPU (Leo Yan)

   - intel_pstate update including support for the Knights Landing chip
     (Dasaratharaman Chandramouli, Kristen Carlson Accardi)

   - QorIQ cpufreq driver update (Tang Yuantian, Arnd Bergmann)

   - powernv cpufreq driver update (Shilpasri G Bhat)

   - devfreq update including Tegra support changes (Tomeu Vizoso,
     MyungJoo Ham, Chanwoo Choi)

   - powercap RAPL (Running-Average Power Limit) driver update including
     support for Intel Broadwell server chips (Jacob Pan, Mathias Krause)

   - ACPI device enumeration update related to the handling of the
     special PRP0001 device ID allowing DT-style 'compatible' property
     to be used for ACPI device identification (Rafael J Wysocki)

   - ACPI EC driver update including limited _DEP support (Lan Tianyu,
     Lv Zheng)

   - ACPI backlight driver update including a new mechanism to allow
     native backlight handling to be forced on non-Windows 8 systems and
     a new quirk for Lenovo Ideapad Z570 (Aaron Lu, Hans de Goede)

   - New Windows Vista compatibility quirk for Sony VGN-SR19XN (Chen Yu)

   - Assorted ACPI fixes and cleanups (Aaron Lu, Martin Kepplinger,
     Masanari Iida, Mika Westerberg, Nan Li, Rafael J Wysocki)

   - Fixes related to suspend-to-idle for the iTCO watchdog driver and
     the ACPI core system suspend/resume code (Rafael J Wysocki, Chen Yu)

   - PM tracing support for the suspend phase of system suspend/resume
     transitions (Zhonghui Fu)

   - Configurable delay for the system suspend/resume testing facility
     (Brian Norris)

   - PNP subsystem cleanups (Peter Huewe, Rafael J Wysocki)"

* tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
  ACPI / scan: Fix NULL pointer dereference in acpi_companion_match()
  ACPI / scan: Rework modalias creation when "compatible" is present
  intel_idle: mark cpu id array as __initconst
  powercap / RAPL: mark rapl_ids array as __initconst
  powercap / RAPL: add ID for Broadwell server
  intel_pstate: Knights Landing support
  intel_pstate: remove MSR test
  cpufreq: fix qoriq uniprocessor build
  ACPI / scan: Take the PRP0001 position in the list of IDs into account
  ACPI / scan: Simplify acpi_match_device()
  ACPI / scan: Generalize of_compatible matching
  device property: Introduce firmware node type for platform data
  device property: Make it possible to use secondary firmware nodes
  PM / watchdog: iTCO: stop watchdog during system suspend
  cpufreq: hisilicon: add acpu driver
  ACPI / EC: Call acpi_walk_dep_device_list() after installing EC opregion handler
  cpufreq: powernv: Report cpu frequency throttling
  intel_idle: Add support for the Airmont Core in the Cherrytrail and Braswell SOCs
  intel_idle: Update support for Silvermont Core in Baytrail SOC
  PM / devfreq: tegra: Register governor on module init
  ...
 2015-04-14 20:21:54 -07:00
Linus Torvalds
8691c130fa Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 
Pull input subsystem updates from Dmitry Torokhov:
 "You will get the following new drivers:

   - Qualcomm PM8941 power key drver
   - ChipOne icn8318 touchscreen controller driver
   - Broadcom iProc touchscreen and keypad drivers
   - Semtech SX8654 I2C touchscreen controller driver

  ALPS driver now supports newer SS4 devices; Elantech got a fix that
  should make it work on some ASUS laptops; and a slew of other
  enhancements and random fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (51 commits)
  Input: alps - non interleaved V2 dualpoint has separate stick button bits
  Input: alps - fix touchpad buttons getting stuck when used with trackpoint
  Input: atkbd - document "no new force-release quirks" policy
  Input: ALPS - make alps_get_pkt_id_ss4_v2() and others static
  Input: ALPS - V7 devices can report 5-finger taps
  Input: ALPS - add support for SS4 touchpad devices
  Input: ALPS - refactor alps_set_abs_params_mt()
  Input: elantech - fix absolute mode setting on some ASUS laptops
  Input: atmel_mxt_ts - split out touchpad initialisation logic
  Input: atmel_mxt_ts - implement support for T100 touch object
  Input: cros_ec_keyb - fix clearing keyboard state on wakeup
  Input: gscps2 - drop pci_ids dependency
  Input: synaptics - allocate 3 slots to keep stability in image sensors
  Input: Revert "Revert "synaptics - use dmax in input_mt_assign_slots""
  Input: MT - make slot assignment work for overcovered solutions
  mfd: tc3589x: enforce device-tree only mode
  Input: tc3589x - localize platform data
  Input: tsc2007 - Convert msecs to jiffies only once
  Input: edt-ft5x06 - remove EV_SYN event report
  Input: edt-ft5x06 - allow to setting the maximum axes value through the DT
  ...
 2015-04-14 18:25:15 -07:00
Linus Torvalds
c3a416a669 Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 
Pull i2c updates from Wolfram Sang:
 "Most notable:

   - introducing the i2c_quirk infrastructure.  Now, flaws of I2C
     controllers can be described and the core will check if the flaws
     collide with the messages to be sent

   - wait_for_completion return type cleanup series

   - new drivers for Digicolor, Netlogic XLP, Ingenic JZ4780

   - updates to the I2C slave framework which include API changes.  Its
     only user was updated, too.  Documentation was finally added

   - changed dynamic bus numbering for the DT case.  This could change
     bus numbers for users.  However, it fixes a collision where dynamic
     and static busses request the same id.

   - driver bugfixes, cleanups"

* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (52 commits)
  i2c: xlp9xx: Driver for Netlogic XLP9XX/5XX I2C controller
  of: Add vendor prefix 'netlogic'
  i2c: davinci: use ICPFUNC to toggle I2C as gpio for bus recovery
  i2c: davinci: use bus recovery infrastructure
  i2c: change input parameter to i2c_adapter for prepare/unprepare_recovery
  i2c: i2c-mux-gpio: remove error messages for probe deferrals
  i2c: jz4780: Add i2c bus controller driver for Ingenic JZ4780
  i2c: dln2: set the device tree node of the adapter
  i2c: davinci: fixup wait_for_completion_timeout handling
  i2c: mpc: Fix ISR return value
  i2c: slave-eeprom: add more info when to increase the pointer
  i2c: slave: add documentation for i2c-slave-eeprom
  Documentation: i2c: describe the new slave mode
  i2c: slave: rework the slave API
  i2c: add support for the Digicolor I2C controller
  i2c: busses with dynamic ids should start after fixed ids for DT
  of: base: add function to get highest id of an alias stem
  i2c: designware: Suppress error message if platform_get_irq() < 0
  i2c: mpc: assign the correct prescaler from SVR
  i2c: img-scb: fixup of wait_for_completion_timeout return handling
  ...
 2015-04-14 18:10:45 -07:00
Linus Torvalds
07e492eb89 This is the bulk of pin control changes for the v4.1 development 
cycle:
 
 New drivers:
   - Intel Sunrisepoint
   - AMD KERNCZ GPIO
   - Broadcom Cygnus IOMUX
 
 New subdrivers:
   - Marvell MVEBU Armada 39x SoCs
   - Samsung Exynos 5433
   - nVidia Tegra 210
   - Mediatek MT8135
   - Mediatek MT8173
   - AMLogic Meson8b
   - Qualcomm PM8916
 
 On top of this cleanups and development history for the above
 drivers as issues were fixed after merging.
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Merge tag 'pinctrl-v4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pincontrol updates from Linus Walleij:
 "This is the bulk of pin control changes for the v4.1 development
  cycle.  Nothing really exciting this time: we basically added a few
  new drivers and subdrivers and stabilized them in linux-next.  Some
  cleanups too.  With sunrisepoint Intel has a real fine fully featured
  pin control driver for contemporary hardware, and the AMD driver is
  also for large deployments.  Most of the others are ARM devices.

  New drivers:
    - Intel Sunrisepoint
    - AMD KERNCZ GPIO
    - Broadcom Cygnus IOMUX

  New subdrivers:
    - Marvell MVEBU Armada 39x SoCs
    - Samsung Exynos 5433
    - nVidia Tegra 210
    - Mediatek MT8135
    - Mediatek MT8173
    - AMLogic Meson8b
    - Qualcomm PM8916

  On top of this cleanups and development history for the above drivers
  as issues were fixed after merging"

* tag 'pinctrl-v4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (71 commits)
  pinctrl: sirf: move sgpio lock into state container
  pinctrl: Add support for PM8916 GPIO's and MPP's
  pinctrl: bcm2835: Fix support for threaded level triggered IRQs
  sh-pfc: r8a7790: add EtherAVB pin groups
  pinctrl: Document "function" + "pins" pinmux binding
  pinctrl: intel: Add Intel Sunrisepoint pin controller and GPIO support
  pinctrl: fsl: imx: Check for 0 config register
  pinctrl: Add support for Meson8b
  documentation: Extend pinctrl docs for Meson8b
  pinctrl: Cleanup Meson8 driver
  Fix inconsistent spinlock of AMD GPIO driver which can be recognized by static analysis tool smatch. Declare constant Variables with Sparse's suggestion.
  pinctrl: at91: convert __raw to endian agnostic IO
  pinctrl: constify of_device_id array
  pinctrl: pinconf-generic: add dt node names to error messages
  pinctrl: pinconf-generic: scan also referenced phandle node
  pinctrl: mvebu: add suspend/resume support to Armada XP pinctrl driver
  pinctrl: st: Display pin's function when printing pinctrl debug information
  pinctrl: st: Show correct pin direction also in GPIO mode
  pinctrl: st: Supply a GPIO get_direction() call-back
  pinctrl: st: Move st_get_pio_control() further up the source file
  ...
 2015-04-14 17:58:15 -07:00
Kevin Cernekee
65a71007a2 of: Document {little,big,native}-endian bindings 
These apply to newly converted drivers, like serial8250/libahci/...
The examples were adapted from the regmap bindings document.

Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rob Herring <robh@kernel.org>
 2015-04-14 19:35:44 -05:00
Alessio Igor Bogani
3712655914 of: add vendor prefix for Artesyn 
Signed-off-by: Alessio Igor Bogani <alessio.bogani@elettra.eu>
Signed-off-by: Rob Herring <robh@kernel.org>
 2015-04-14 19:35:43 -05:00
Linus Torvalds
f0c1bc95a1 == Changes to existing drivers == 
- Rename child driver [axp288_battery => axp288_fuel_gauge]; axp20x
    - Rename child driver [max77693-flash => max77693-led]; max77693
    - Error handling fixes; intel_soc_pmic
    - GPIO tweaking; intel_soc_pmic
    - Remove non-DT code; vexpress-sysreg, tc3589x
    - Remove unused/legacy code; ti_am335x_tscadc, rts5249, rtsx_gops, rtsx_pcr,
                                 rtc-s5m, sec-core, max77693, menelaus,
                                 wm5102-tables
    - Trivial fixups; rtsx_pci, da9150-core, sec-core, max7769, max77693,
                      mc13xxx-core, dln2, hi6421-pmic-core, rk808, twl4030-power,
                      lpc_ich, menelaus, twl6040
    - Update register/address values; rts5227, rts5249
    - DT and/or binding document fixups; arizona, da9150, mt6397, axp20x,
                                         qcom-rpm, qcom-spmi-pmic
    - Couple of trivial core Kconfig fixups
    - Remove use of seq_printf return value; ab8500-debugfs
    - Remove __exit markups; menelaus, tps65010
    - Fix platform-device name collisions; mfd-core
 
  == New drivers/supported devices ==
    - Add support for wm8280/wm8281 into arizona
    - Add support for COMe-cBL6 into kempld-core
    - Add support for rts524a and rts525a into rts5249
    - Add support for ipq8064 into qcom_rpm
    - Add support for extcon into axp20x
    - New MediaTek MT6397 PMIC driver
    - New Maxim MAX77843 PMIC dirver
    - New Intel Quark X1000 I2C-GPIO driver
    - New Skyworks SKY81452 driver
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Merge tag 'mfd-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "Changes to existing drivers:

   - Rename child driver [axp288_battery => axp288_fuel_gauge]; axp20x
   - Rename child driver [max77693-flash => max77693-led]; max77693
   - Error handling fixes; intel_soc_pmic
   - GPIO tweaking; intel_soc_pmic
   - Remove non-DT code; vexpress-sysreg, tc3589x
   - Remove unused/legacy code; ti_am335x_tscadc, rts5249, rtsx_gops, rtsx_pcr,
                                rtc-s5m, sec-core, max77693, menelaus,
                                wm5102-tables
   - Trivial fixups; rtsx_pci, da9150-core, sec-core, max7769, max77693,
                     mc13xxx-core, dln2, hi6421-pmic-core, rk808, twl4030-power,
                     lpc_ich, menelaus, twl6040
   - Update register/address values; rts5227, rts5249
   - DT and/or binding document fixups; arizona, da9150, mt6397, axp20x,
                                        qcom-rpm, qcom-spmi-pmic
   - Couple of trivial core Kconfig fixups
   - Remove use of seq_printf return value; ab8500-debugfs
   - Remove __exit markups; menelaus, tps65010
   - Fix platform-device name collisions; mfd-core

  New drivers/supported devices:

   - Add support for wm8280/wm8281 into arizona
   - Add support for COMe-cBL6 into kempld-core
   - Add support for rts524a and rts525a into rts5249
   - Add support for ipq8064 into qcom_rpm
   - Add support for extcon into axp20x
   - New MediaTek MT6397 PMIC driver
   - New Maxim MAX77843 PMIC dirver
   - New Intel Quark X1000 I2C-GPIO driver
   - New Skyworks SKY81452 driver"

* tag 'mfd-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (76 commits)
  mfd: sec: Fix RTC alarm interrupt number on S2MPS11
  mfd: wm5102: Remove registers for output 3R from readable list
  mfd: tps65010: Remove incorrect __exit markups
  mfd: devicetree: bindings: Add Qualcomm RPM regulator subnodes
  mfd: axp20x: Add support for extcon cell
  mfd: lpc_ich: Sort IDs
  mfd: twl6040: Remove wrong and unneeded "platform:twl6040" modalias
  mfd: qcom-spmi-pmic: Add specific compatible strings for Qualcomm's SPMI PMIC's
  mfd: axp20x: Fix duplicate const for model names
  mfd: menelaus: Use macro for magic number
  mfd: menelaus: Drop support for SW controller VCORE
  mfd: menelaus: Delete omap_has_menelaus
  mfd: arizona: Correct type of gpio_defaults
  mfd: lpc_ich: Sort IDs
  mfd: Fix a typo in Kconfig
  mfd: qcom_rpm: Add support for IPQ8064
  mfd: devicetree: qcom_rpm: Document IPQ8064 resources
  mfd: core: Fix platform-device name collisions
  mfd: intel_quark_i2c_gpio: Don't crash if !DMI
  dt-bindings: Add vendor-prefix for X-Powers
  ...
 2015-04-14 17:29:55 -07:00
Linus Torvalds
1dcf58d6e6 Merge branch 'akpm' (patches from Andrew) 
Merge first patchbomb from Andrew Morton:

 - arch/sh updates

 - ocfs2 updates

 - kernel/watchdog feature

 - about half of mm/

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (122 commits)
  Documentation: update arch list in the 'memtest' entry
  Kconfig: memtest: update number of test patterns up to 17
  arm: add support for memtest
  arm64: add support for memtest
  memtest: use phys_addr_t for physical addresses
  mm: move memtest under mm
  mm, hugetlb: abort __get_user_pages if current has been oom killed
  mm, mempool: do not allow atomic resizing
  memcg: print cgroup information when system panics due to panic_on_oom
  mm: numa: remove migrate_ratelimited
  mm: fold arch_randomize_brk into ARCH_HAS_ELF_RANDOMIZE
  mm: split ET_DYN ASLR from mmap ASLR
  s390: redefine randomize_et_dyn for ELF_ET_DYN_BASE
  mm: expose arch_mmap_rnd when available
  s390: standardize mmap_rnd() usage
  powerpc: standardize mmap_rnd() usage
  mips: extract logic for mmap_rnd()
  arm64: standardize mmap_rnd() usage
  x86: standardize mmap_rnd() usage
  arm: factor out mmap ASLR into mmap_rnd
  ...
 2015-04-14 16:49:17 -07:00
Vladimir Murzin
e4b0db72be Documentation: update arch list in the 'memtest' entry 
Since arm64/arm support memtest command line option update the "memtest"
entry.

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-14 16:49:06 -07:00
Toshi Kani
0ddab1d2ed lib/ioremap.c: add huge I/O map capability interfaces 
Add ioremap_pud_enabled() and ioremap_pmd_enabled(), which return 1 when
I/O mappings with pud/pmd are enabled on the kernel.

ioremap_huge_init() calls arch_ioremap_pud_supported() and
arch_ioremap_pmd_supported() to initialize the capabilities at boot-time.

A new kernel option "nohugeiomap" is also added, so that user can disable
the huge I/O map capabilities when necessary.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Robert Elliott <Elliott@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-14 16:49:04 -07:00
Vladimir Davydov
53d85c9856 cleancache: forbid overriding cleancache_ops 
Currently, cleancache_register_ops returns the previous value of
cleancache_ops to allow chaining.  However, chaining, as it is
implemented now, is extremely dangerous due to possible pool id
collisions.  Suppose, a new cleancache driver is registered after the
previous one assigned an id to a super block.  If the new driver assigns
the same id to another super block, which is perfectly possible, we will
have two different filesystems using the same id.  No matter if the new
driver implements chaining or not, we are likely to get data corruption
with such a configuration eventually.

This patch therefore disables the ability to override cleancache_ops
altogether as potentially dangerous.  If there is already cleancache
driver registered, all further calls to cleancache_register_ops will
return EBUSY.  Since no user of cleancache implements chaining, we only
need to make minor changes to the code outside the cleancache core.

Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Stefan Hengelein <ilendir@googlemail.com>
Cc: Florian Schmaus <fschmaus@gmail.com>
Cc: Andor Daam <andor.daam@googlemail.com>
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>
Cc: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-14 16:49:03 -07:00
Sasha Levin
17e0db822b cma: debug: document new debugfs interface 
Document the structure and files under the new debugfs interface.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Laura Abbott <lauraa@codeaurora.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-14 16:49:00 -07:00
Kirill A. Shutemov
fc05f56621 mm: rename __mlock_vma_pages_range() to populate_vma_page_range() 
__mlock_vma_pages_range() doesn't necessarily mlock pages.  It depends on
vma flags.  The same codepath is used for MAP_POPULATE.

Let's rename __mlock_vma_pages_range() to populate_vma_page_range().

This patch also drops mlock_vma_pages_range() references from
documentation.  It has gone in cea10a19b7 ("mm: directly use
__mlock_vma_pages_range() in find_extend_vma()").

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-14 16:49:00 -07:00
Ulrich Obergfell
195daf665a watchdog: enable the new user interface of the watchdog mechanism 
With the current user interface of the watchdog mechanism it is only
possible to disable or enable both lockup detectors at the same time.
This series introduces new kernel parameters and changes the semantics of
some existing kernel parameters, so that the hard lockup detector and the
soft lockup detector can be disabled or enabled individually.  With this
series applied, the user interface is as follows.

- parameters in /proc/sys/kernel

  . soft_watchdog
    This is a new parameter to control and examine the run state of
    the soft lockup detector.

  . nmi_watchdog
    The semantics of this parameter have changed. It can now be used
    to control and examine the run state of the hard lockup detector.

  . watchdog
    This parameter is still available to control the run state of both
    lockup detectors at the same time. If this parameter is examined,
    it shows the logical OR of soft_watchdog and nmi_watchdog.

  . watchdog_thresh
    The semantics of this parameter are not affected by the patch.

- kernel command line parameters

  . nosoftlockup
    The semantics of this parameter have changed. It can now be used
    to disable the soft lockup detector at boot time.

  . nmi_watchdog=0 or nmi_watchdog=1
    Disable or enable the hard lockup detector at boot time. The patch
    introduces '=1' as a new option.

  . nowatchdog
    The semantics of this parameter are not affected by the patch. It
    is still available to disable both lockup detectors at boot time.

Also, remove the proc_dowatchdog() function which is no longer needed.

[dzickus@redhat.com: wrote changelog]
[dzickus@redhat.com: update documentation for kernel params and sysctl]
Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2015-04-14 16:48:59 -07:00
Russell King
4b2f883847 Merge branch 'devel-stable' into for-next 2015-04-14 22:28:32 +01:00
Linus Torvalds
078838d565 Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull RCU changes from Ingo Molnar:
 "The main changes in this cycle were:

   - changes permitting use of call_rcu() and friends very early in
     boot, for example, before rcu_init() is invoked.

   - add in-kernel API to enable and disable expediting of normal RCU
     grace periods.

   - improve RCU's handling of (hotplug-) outgoing CPUs.

   - NO_HZ_FULL_SYSIDLE fixes.

   - tiny-RCU updates to make it more tiny.

   - documentation updates.

   - miscellaneous fixes"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
  cpu: Provide smpboot_thread_init() on !CONFIG_SMP kernels as well
  cpu: Defer smpboot kthread unparking until CPU known to scheduler
  rcu: Associate quiescent-state reports with grace period
  rcu: Yet another fix for preemption and CPU hotplug
  rcu: Add diagnostics to grace-period cleanup
  rcutorture: Default to grace-period-initialization delays
  rcu: Handle outgoing CPUs on exit from idle loop
  cpu: Make CPU-offline idle-loop transition point more precise
  rcu: Eliminate ->onoff_mutex from rcu_node structure
  rcu: Process offlining and onlining only at grace-period start
  rcu: Move rcu_report_unblock_qs_rnp() to common code
  rcu: Rework preemptible expedited bitmask handling
  rcu: Remove event tracing from rcu_cpu_notify(), used by offline CPUs
  rcutorture: Enable slow grace-period initializations
  rcu: Provide diagnostic option to slow down grace-period initialization
  rcu: Detect stalls caused by failure to propagate up rcu_node tree
  rcu: Eliminate empty HOTPLUG_CPU ifdef
  rcu: Simplify sync_rcu_preempt_exp_init()
  rcu: Put all orphan-callback-related code under same comment
  rcu: Consolidate offline-CPU callback initialization
  ...
 2015-04-14 13:36:04 -07:00
David S. Miller
87ffabb1f0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
The dwmac-socfpga.c conflict was a case of a bug fix overlapping
changes in net-next to handle an error pointer differently.

Signed-off-by: David S. Miller <davem@davemloft.net>
 2015-04-14 15:44:14 -04:00
Christoph Hellwig
9ac8928e6a target: simplify the target template registration API 
Instead of calling target_fabric_configfs_init() +
target_fabric_configfs_register() / target_fabric_configfs_deregister()
target_fabric_configfs_free() from every target driver, rewrite the API
so that we have simple register/unregister functions that operate on
a const operations vector.

This patch also fixes a memory leak in several target drivers. Several
target drivers namely called target_fabric_configfs_deregister()
without calling target_fabric_configfs_free().

A large part of this patch is based on earlier changes from
Bart Van Assche <bart.vanassche@sandisk.com>.

(v2: Add a new TF_CIT_SETUP_DRV macro so that the core configfs code
can declare attributes as either core only or for drivers)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
 2015-04-14 12:28:41 -07:00
Linus Torvalds
8de29a35dc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 
Pull HID updates from Jiri Kosina:

 - quite a few firmware fixes for RMI driver by Andrew Duggan

 - huion and uclogic drivers have been substantially overlaping in
   functionality laterly.  This redundancy is fixed by hid-huion driver
   being merged into hid-uclogic; work done by Benjamin Tissoires and
   Nikolai Kondrashov

 - i2c-hid now supports ACPI GPIO interrupts; patch from Mika Westerberg

 - Some of the quirks, that got separated into individual drivers, have
   historically had EXPERT dependency.  As HID subsystem matured (as
   well as the individual drivers), this made less and less sense.  This
   dependency is now being removed by patch from Jean Delvare

 - Logitech lg4ff driver received a couple of improvements for mode
   switching, by Michal Malý

 - multitouch driver now supports clickpads, patches by Benjamin
   Tissoires and Seth Forshee

 - hid-sensor framework received a substantial update; namely support
   for Custom and Generic pages is being added; work done by Srinivas
   Pandruvada

 - wacom driver received substantial update; it now supports
   i2c-conntected devices (Mika Westerberg), Bamboo PADs are now
   properly supported (Benjamin Tissoires), much improved battery
   reporting (Jason Gerecke) and pen proximity cleanups (Ping Cheng)

 - small assorted fixes and device ID additions

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (68 commits)
  HID: sensor: Update document for custom sensor
  HID: sensor: Custom and Generic sensor support
  HID: debug: fix error handling in hid_debug_events_read()
  Input - mt: Fix input_mt_get_slot_by_key
  HID: logitech-hidpp: fix error return code
  HID: wacom: Add support for Cintiq 13HD Touch
  HID: logitech-hidpp: add a module parameter to keep firmware gestures
  HID: usbhid: yet another mouse with ALWAYS_POLL
  HID: usbhid: more mice with ALWAYS_POLL
  HID: wacom: set stylus_in_proximity before checking touch_down
  HID: wacom: use wacom_wac_finger_count_touches to set touch_down
  HID: wacom: remove hardcoded WACOM_QUIRK_MULTI_INPUT
  HID: pidff: effect can't be NULL
  HID: add quirk for PIXART OEM mouse used by HP
  HID: add HP OEM mouse to quirk ALWAYS_POLL
  HID: wacom: ask for a in-prox report when it was missed
  HID: hid-sensor-hub: Fix sparse warning
  HID: hid-sensor-hub: fix attribute read for logical usage id
  HID: plantronics: fix Kconfig default
  HID: pidff: support more than one concurrent effect
  ...
 2015-04-14 09:25:26 -07:00
Linus Torvalds
b79013b244 Staging driver patches for 4.1-rc1 
Here's the big staging driver patchset for 4.1-rc1.
 
 There's a lot of patches here, the Outreachy application period happened
 during this development cycle, so that means that there was a lot of
 cleanup patches accepted.  Other than the normal coding style and sparse
 fixes here, there are some driver updates and work toward making some of
 the drivers into "mergable" shape (like the Unisys drivers.)
 
 All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver updates from Greg KH:
 "Here's the big staging driver patchset for 4.1-rc1.

  There's a lot of patches here, the Outreachy application period
  happened during this development cycle, so that means that there was a
  lot of cleanup patches accepted.  Other than the normal coding style
  and sparse fixes here, there are some driver updates and work toward
  making some of the drivers into "mergable" shape (like the Unisys
  drivers.)

  All of these have been in linux-next for a while"

* tag 'staging-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (1214 commits)
  staging: lustre: orthography & coding style
  staging: lustre: lnet: lnet: fix error return code
  staging: lustre: fix sparse warning
  Revert "Staging: sm750fb: Fix C99 Comments"
  Staging: rtl8192u: use correct array for debug output
  staging: rtl8192e: Remove dead code
  staging: rtl8192e: Comment cleanup (style/format)
  staging: rtl8192e: Fix indentation in rtllib_rx_auth_resp()
  staging: rtl8192e: Decrease nesting of rtllib_rx_auth_resp()
  staging: rtl8192e: Divide rtllib_rx_auth()
  staging: rtl8192e: Fix PRINTK_WITHOUT_KERN_LEVEL warnings
  staging: rtl8192e: Fix DO_WHILE_MACRO_WITH_TRAILING_SEMICOLON warning
  staging: rtl8192e: Fix BRACES warning
  staging: rtl8192e: Fix LINE_CONTINUATIONS warning
  staging: rtl8192e: Fix UNNECESSARY_PARENTHESES warnings
  staging: rtl8192e: remove unused EXPORT_SYMBOL_RSL macro
  staging: rtl8192e: Fix RETURN_VOID warnings
  staging: rtl8192e: Fix UNNECESSARY_ELSE warning
  staging: rtl8723au: Remove unneeded comments
  staging: rtl8723au: Use __func__ in trace logs
  ...
 2015-04-13 17:37:33 -07:00
Linus Torvalds
c4be50eee2 Driver core update for 4.1-rc1 
Here's the driver-core / kobject / lz4 tree update for 4.1-rc1.
 
 Everything here has been in linux-next for a while with no reported
 issues.  It's mostly just coding style cleanups, with other minor
 changes in here as well, nothing big.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here's the driver-core / kobject / lz4 tree update for 4.1-rc1.

  Everything here has been in linux-next for a while with no reported
  issues.  It's mostly just coding style cleanups, with other minor
  changes in here as well, nothing big"

* tag 'driver-core-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (32 commits)
  debugfs: allow bad parent pointers to be passed in
  stable_kernel_rules: Add clause about specification of kernel versions to patch.
  kobject: WARN as tip when call kobject_get() to a kobject not initialized
  lib/lz4: Pull out constant tables
  drivers: platform: parse IRQ flags from resources
  driver core: Make probe deferral more quiet
  drivers/core/of: Add symlink to device-tree from devices with an OF node
  device: Add dev_of_node() accessor
  drivers: base: fw: fix ret value when loading fw
  firmware: Avoid manual device_create_file() calls
  drivers/base: cacheinfo: validate device node for all the caches
  drivers/base: use tabs where possible in code indentation
  driver core: add missing blank line after declaration
  drivers: base: node: Delete space after pointer declaration
  drivers: base: memory: Use tabs instead of spaces
  firmware_class: Fix whitespace and indentation
  drivers: base: dma-mapping: Erase blank space after pointer
  drivers: base: class: Add a blank line after declarations
  attribute_container: fix missing blank lines after declarations
  drivers: base: memory: Fix switch indent
  ...
 2015-04-13 17:17:32 -07:00
Linus Torvalds
42e3a58b02 USB patches for 4.1-rc1 
Here's the big USB (and PHY) driver patchset for 4.1-rc1.
 
 Everything here has been in linux-next, and the full details are below
 in the shortlog.  Nothing major, just the normal round of new
 drivers,api updates, and other changes, mostly in the USB gadget area,
 as usual.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB driver updates from Greg KH:
 "Here's the big USB (and PHY) driver patchset for 4.1-rc1.

  Everything here has been in linux-next, and the full details are below
  in the shortlog.  Nothing major, just the normal round of new
  drivers,api updates, and other changes, mostly in the USB gadget area,
  as usual"

* tag 'usb-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (252 commits)
  drivers/usb/core: devio.c: Removed an uneeded space before tab
  usb: dwc2: host: sleep USB_RESUME_TIMEOUT during resume
  usb: chipidea: debug: add low power mode check before print registers
  usb: chipidea: udc: bypass pullup DP when gadget connect in OTG fsm mode
  usb: core: hub: use new USB_RESUME_TIMEOUT
  usb: isp1760: hcd: use new USB_RESUME_TIMEOUT
  usb: dwc2: hcd: use new USB_RESUME_TIMEOUT
  usb: host: sl811: use new USB_RESUME_TIMEOUT
  usb: host: r8a66597: use new USB_RESUME_TIMEOUT
  usb: host: oxu210hp: use new USB_RESUME_TIMEOUT
  usb: host: fusbh200: use new USB_RESUME_TIMEOUT
  usb: host: fotg210: use new USB_RESUME_TIMEOUT
  usb: host: isp116x: use new USB_RESUME_TIMEOUT
  usb: musb: use new USB_RESUME_TIMEOUT
  usb: host: uhci: use new USB_RESUME_TIMEOUT
  usb: host: ehci: use new USB_RESUME_TIMEOUT
  usb: host: xhci: use new USB_RESUME_TIMEOUT
  usb: define a generic USB_RESUME_TIMEOUT macro
  usb: musb: dsps: fix build on i386 when COMPILE_TEST is set
  ehci-hub: use USB_DT_HUB
  ...
 2015-04-13 17:07:21 -07:00
Linus Torvalds
4fd48b45ff Merge branch 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 
Pull cgroup updates from Tejun Heo:
 "Nothing too interesting.  Rik made cpuset cooperate better with
  isolcpus and there are several other cleanup patches"

* 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cpuset, isolcpus: document relationship between cpusets & isolcpus
  cpusets, isolcpus: exclude isolcpus from load balancing in cpusets
  sched, isolcpu: make cpu_isolated_map visible outside scheduler
  cpuset: initialize cpuset a bit early
  cgroup: Use kvfree in pidlist_free()
  cgroup: call cgroup_subsys->bind on cgroup subsys initialization
 2015-04-13 16:47:11 -07:00
Linus Torvalds
a1480a166d Merge branch 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata 
Pull libata updates from Tejun Heo:

 - Hannes's patchset implements support for better error reporting
   introduced by the new ATA command spec.

 - the deperecated pci_ dma API usages have been replaced by dma_ ones.

 - a bunch of hardware specific updates and some cleanups.

* 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
  ata: remove deprecated use of pci api
  ahci: st: st_configure_oob must be called after IP is clocked.
  ahci: st: Update the ahci_st DT documentation
  ahci: st: Update the DT example for how to obtain the PHY.
  sata_dwc_460ex: indent an if statement
  libata: Add tracepoints
  libata-eh: Set 'information' field for autosense
  libata: Implement support for sense data reporting
  libata: Implement NCQ autosense
  libata: use status bit definitions in ata_dump_status()
  ide,ata: Rename ATA_IDX to ATA_SENSE
  libata: whitespace fixes in ata_to_sense_error()
  libata: whitespace cleanup in ata_get_cmd_descript()
  libata: use READ_LOG_DMA_EXT
  libata: remove ATA_FLAG_LOWTAG
  sata_dwc_460ex: re-use hsdev->dev instead of dwc_dev
  sata_dwc_460ex: move to generic DMA driver
  sata_dwc_460ex: join messages back
  sata: xgene: add ACPI support for APM X-Gene SATA ports
  ata: sata_mv: add proper definitions for LP_PHY_CTL register values
 2015-04-13 16:42:16 -07:00
Michael Ellerman
ad30cb9946 Merge branch 'next-sriov' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc into next 
Merge Richard's work to support SR-IOV on PowerNV. All generic PCI
patches acked by Bjorn.

Some minor conflicts with Daniel's pci_controller_ops work.

Conflicts:
	arch/powerpc/include/asm/machdep.h
	arch/powerpc/platforms/powernv/pci-ioda.c
 2015-04-14 09:29:23 +10:00
Arnd Bergmann
9705feacb7 The i.MX device tree updates for 4.1: 
- Convert GPC controller to use stacked interrupt domains
  - Add power domain descriptions for i.MX6 platforms
  - Improve i.MX25 pin function defines
  - Disable PWM devices in <soc>.dtsi by default and enable it at board
    level dts where the device is actually available.
  - Define labels for SNVS RTC device to ease the board description,
    where an external RTC is available.
  - Add dr_mode host setting to all i.MX host-only USB instances
  - Support Miscellaneous System Control Module (MSCM) for VF610
  - Add initial i.MX6SL WaRP Board support
  - Add i.MX6SX SDB revision B board support
  - A bunch of imx28-apf28dev board updates, including gpio polarity
    correction and CAN, AUART device support.
  - SolidRun iMX6 platform updates: dual-license of GPLv2/X11, PWM
    setup, PCF8523 RTC, GPIO key and SGTL5000 audio support.
  - A number of random device additions for boards: SPI and CAN for
    vf-colibri, MAX7310 GPIO expander for imx6qdl-sabreauto and LCD
    support for imx25-pdk.
 
 Note: Branch imx/cleanup was merged as the base to solve conflict on
 imx25 iomux header.  Branch imx/soc was merged as the base to solve
 conflict on arch/arm/mach-imx/gpc.c.  And Jason Cooper's irqchip/vybrid
 branch was pulled into the base as a run-time dependency.
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Merge tag 'imx-dt-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/late

Pull "The i.MX device tree updates for 4.1" from Shawn Guo:

 - Convert GPC controller to use stacked interrupt domains
 - Add power domain descriptions for i.MX6 platforms
 - Improve i.MX25 pin function defines
 - Disable PWM devices in <soc>.dtsi by default and enable it at board
   level dts where the device is actually available.
 - Define labels for SNVS RTC device to ease the board description,
   where an external RTC is available.
 - Add dr_mode host setting to all i.MX host-only USB instances
 - Support Miscellaneous System Control Module (MSCM) for VF610
 - Add initial i.MX6SL WaRP Board support
 - Add i.MX6SX SDB revision B board support
 - A bunch of imx28-apf28dev board updates, including gpio polarity
   correction and CAN, AUART device support.
 - SolidRun iMX6 platform updates: dual-license of GPLv2/X11, PWM
   setup, PCF8523 RTC, GPIO key and SGTL5000 audio support.
 - A number of random device additions for boards: SPI and CAN for
   vf-colibri, MAX7310 GPIO expander for imx6qdl-sabreauto and LCD
   support for imx25-pdk.

Note: Branch imx/cleanup was merged as the base to solve conflict on
imx25 iomux header.  Branch imx/soc was merged as the base to solve
conflict on arch/arm/mach-imx/gpc.c.  And Jason Cooper's irqchip/vybrid
branch was pulled into the base as a run-time dependency.

* tag 'imx-dt-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (69 commits)
  ARM: dts: hummingboard: add sgtl5000 support for Hummingboard Pro
  ARM: dts: imx25-pinfunc: Add several pinfunctions
  ARM: dts: vf610: fix missing irqs
  ARM: dts: cubox: Map gpio-keys to gpio3 8
  ARM: dts: hummingboard: Setup pwm lines
  ARM: dts: hummingboard: enable PCF8523 RTC support
  ARM: dts: Re-license SolidRun iMX6 platform DT GPL v2/X11
  ARM: dts: imx28: add alternative pinmuxing for spi3
  ARM: dts: imx6sx: Add label snvs_rtc
  ARM: dts: imx6sl: Add label snvs_rtc
  ARM: imx6: Warn when an old DT is detected
  ARM: imx6: Allow GPC interrupts affinity to be changed
  ARM: imx6qdl-sabreauto.dtsi: add max7310 support
  ARM: dts: imx6sl-warp: Add BCM4330 support
  ARM: dts: imx28-apf28dev: add wakeup function to user button
  ARM: dts: imx28-apf28dev: fix user button polarity
  ARM: dts: imx25-pinfunc: remove input values for pinfuncs without input register
  ARM: dts: vf610: add Miscellaneous System Control Module (MSCM)
  ARM: dts: imx6sl-warp: Pass 'bus-width' property
  ARM: dts: imx6qdl: disable PWMs by default
  ...
 2015-04-14 01:18:44 +02:00
Arnd Bergmann
643ee0d50a Clean-up for omap PRCM (Power Reset Clock Management) and interconnects 
from Tero Kristo <t-kristo@ti.com>.
 
 This sets gets us into a better position for further clean-up:
 
 - Gets PRCM code closer to being device drivers
 
 - Allows to move the remainig clock code to drivers/clk for v4.2
 
 - Starts enforcing interconnect hierarchy in the SoC specific .dts
   files to enforce device drivers are only accesing registers in
   the related hardware module
 
 This patchset has seen quite a few revisions but did not come into
 mergeable shape until recently. As other patchsets for clock specific
 device drivers depend on this, it would be good to get this merged
 although it's a bit late for the v4.1 merge window.
 
 Note that as the device entries in the .dts files are moved around,
 this is based on earlier non-urgent fixes to avoid a non-trivial
 merge conflict.
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Merge tag 'omap-for-v4.1/prcm-dts' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/late

Pull "Clean-up for omap PRCM (Power Reset Clock Management) and interconnects" from Tony Lindgren
Patches originally from Tero Kristo <t-kristo@ti.com>.

This sets gets us into a better position for further clean-up:

- Gets PRCM code closer to being device drivers

- Allows to move the remainig clock code to drivers/clk for v4.2

- Starts enforcing interconnect hierarchy in the SoC specific .dts
  files to enforce device drivers are only accesing registers in
  the related hardware module

This patchset has seen quite a few revisions but did not come into
mergeable shape until recently. As other patchsets for clock specific
device drivers depend on this, it would be good to get this merged
although it's a bit late for the v4.1 merge window.

Note that as the device entries in the .dts files are moved around,
this is based on earlier non-urgent fixes to avoid a non-trivial
merge conflict.

* tag 'omap-for-v4.1/prcm-dts' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: (44 commits)
  ARM: OMAP4+: control: add support for initializing control module via DT
  ARM: dts: dra7: add minimal l4 bus layout with control module support
  ARM: dts: omap5: add minimal l4 bus layout with control module support
  ARM: OMAP4+: control: remove support for legacy pad read/write
  ARM: OMAP4: display: convert display to use syscon for dsi muxing
  ARM: dts: omap4: add minimal l4 bus layout with control module support
  ARM: dts: am4372: add minimal l4 bus layout with control module support
  ARM: dts: am43xx-epos-evm: fix pinmux node layout
  ARM: dts: am33xx: add minimal l4 bus layout with control module support
  ARM: dts: omap3: add minimal l4 bus layout with control module support
  ARM: dts: omap24xx: add minimal l4 bus layout with control module support
  ARM: OMAP2+: control: add syscon support for register accesses
  ARM: OMAP2+: id: cache omap_type value
  ARM: OMAP2+: control: remove API for getting control module base address
  ARM: OMAP2+: clock: add low-level support for regmap
  ARM: OMAP4+: PRM: get rid of cpu_is_omap44xx calls from interrupt init
  ARM: OMAP4+: PRM: setup prm_features from the PRM init time flags
  ARM: OMAP2+: CM: move SoC specific init calls within a generic API
  ARM: OMAP4+: PRM: determine prm_device_inst based on DT compatibility
  ARM: OMAP2+: PRM: move SoC specific init calls within a generic API
  ...
 2015-04-14 01:03:29 +02:00
Linus Torvalds
8954672d86 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull irq core updates from Thomas Gleixner:
 "Managerial summary:

  Core code:
   - final removal of IRQF_DISABLED
   - new state save/restore functions for virtualization support
   - wakeup support for stacked irqdomains
   - new function to solve the netpoll synchronization problem

 irqchips:
   - new driver for STi based devices
   - new driver for Vybrid MSCM
   - massive cleanup of the GIC driver by moving the GIC-addons to
     stacked irqdomains
   - the usual pile of fixes and updates to the various chip drivers"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  irqchip: GICv3: Add support for irq_[get, set]_irqchip_state()
  irqchip: GIC: Add support for irq_[get, set]_irqchip_state()
  genirq: Allow the irqchip state of an IRQ to be save/restored
  genirq: MSI: Fix freeing of unallocated MSI
  irqchip: renesas-irqc: Add wake-up support
  irqchip: armada-370-xp: Allow using wakeup source
  irqchip: mips-gic: Add new functions to start/stop the GIC counter
  irqchip: tegra: Add Tegra210 support
  irqchip: digicolor: Move digicolor_set_gc to init section
  irqchip: renesas-irqc: Add functional clock to bindings
  irqchip: renesas-irqc: Add minimal runtime PM support
  irqchip: renesas-irqc: Add more register documentation
  DT: exynos: update PMU binding
  ARM: exynos4/5: convert pmu wakeup to stacked domains
  irqchip: gic: Don't complain in gic_get_cpumask() if UP system
  ARM: zynq: switch from gic_arch_extn to gic_set_irqchip_flags
  ARM: ux500: switch from gic_arch_extn to gic_set_irqchip_flags
  ARM: shmobile: remove use of gic_arch_extn.irq_set_wake
  irqchip: gic: Add an entry point to set up irqchip flags
  ARM: omap: convert wakeupgen to stacked domains
  ...
 2015-04-13 15:54:50 -07:00
Linus Torvalds
3be1b98e07 PCI changes for the v4.1 merge window: 
Enumeration
     - Read capability list as dwords, not bytes (Sean O. Stalley)
 
   Resource management
     - Don't check for PNP overlaps with unassigned PCI BARs (Bjorn Helgaas)
     - Mark invalid BARs as unassigned (Bjorn Helgaas)
     - Show driver, BAR#, and resource on pci_ioremap_bar() failure (Bjorn Helgaas)
     - Fail pci_ioremap_bar() on unassigned resources (Bjorn Helgaas)
     - Assign resources before drivers claim devices (Yijing Wang)
     - Claim bus resources before pci_bus_add_devices() (Yijing Wang)
 
   Power management
     - Optimize device state transition delays (Aaron Lu)
     - Don't clear ASPM bits when the FADT declares it's unsupported (Matthew Garrett)
 
   Virtualization
     - Add ACS quirks for Intel 1G NICs (Alex Williamson)
 
   IOMMU
     - Add ptr to OF node arg to of_iommu_configure() (Murali Karicheri)
     - Move of_dma_configure() to device.c to help re-use (Murali Karicheri)
     - Fix size when dma-range is not used (Murali Karicheri)
     - Add helper functions pci_get[put]_host_bridge_device() (Murali Karicheri)
     - Add of_pci_dma_configure() to update DMA configuration (Murali Karicheri)
     - Update DMA configuration from DT (Murali Karicheri)
     - dma-mapping: limit IOMMU mapping size (Murali Karicheri)
     - Calculate device DMA masks based on DT dma-range size (Murali Karicheri)
 
   ARM Versatile host bridge driver
     - Check for devm_ioremap_resource() failures (Jisheng Zhang)
 
   Broadcom iProc host bridge driver
     - Add Broadcom iProc PCIe driver (Ray Jui)
 
   Marvell MVEBU host bridge driver
     - Add suspend/resume support (Thomas Petazzoni)
 
   Renesas R-Car host bridge driver
     - Fix position of MSI enable bit (Nobuhiro Iwamatsu)
     - Write zeroes to reserved PCIEPARL bits (Nobuhiro Iwamatsu)
     - Change PCIEPARL and PCIEPARH to PCIEPALR and PCIEPAUR (Nobuhiro Iwamatsu)
     - Verify that mem_res is 64K-aligned (Nobuhiro Iwamatsu)
 
   Samsung Exynos host bridge driver
     - Fix INTx enablement statement termination error (Jaehoon Chung)
 
   Miscellaneous
     - Make a shareable UUID for PCI firmware ACPI _DSM (Aaron Lu)
     - Clarify policy for vendor IDs in pci.txt (Michael S. Tsirkin)
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Merge tag 'pci-v4.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI changes from Bjorn Helgaas:
 "Enumeration
    - Read capability list as dwords, not bytes (Sean O. Stalley)

  Resource management
    - Don't check for PNP overlaps with unassigned PCI BARs (Bjorn Helgaas)
    - Mark invalid BARs as unassigned (Bjorn Helgaas)
    - Show driver, BAR#, and resource on pci_ioremap_bar() failure (Bjorn Helgaas)
    - Fail pci_ioremap_bar() on unassigned resources (Bjorn Helgaas)
    - Assign resources before drivers claim devices (Yijing Wang)
    - Claim bus resources before pci_bus_add_devices() (Yijing Wang)

  Power management
    - Optimize device state transition delays (Aaron Lu)
    - Don't clear ASPM bits when the FADT declares it's unsupported (Matthew Garrett)

  Virtualization
    - Add ACS quirks for Intel 1G NICs (Alex Williamson)

  IOMMU
    - Add ptr to OF node arg to of_iommu_configure() (Murali Karicheri)
    - Move of_dma_configure() to device.c to help re-use (Murali Karicheri)
    - Fix size when dma-range is not used (Murali Karicheri)
    - Add helper functions pci_get[put]_host_bridge_device() (Murali Karicheri)
    - Add of_pci_dma_configure() to update DMA configuration (Murali Karicheri)
    - Update DMA configuration from DT (Murali Karicheri)
    - dma-mapping: limit IOMMU mapping size (Murali Karicheri)
    - Calculate device DMA masks based on DT dma-range size (Murali Karicheri)

  ARM Versatile host bridge driver
    - Check for devm_ioremap_resource() failures (Jisheng Zhang)

  Broadcom iProc host bridge driver
    - Add Broadcom iProc PCIe driver (Ray Jui)

  Marvell MVEBU host bridge driver
    - Add suspend/resume support (Thomas Petazzoni)

  Renesas R-Car host bridge driver
    - Fix position of MSI enable bit (Nobuhiro Iwamatsu)
    - Write zeroes to reserved PCIEPARL bits (Nobuhiro Iwamatsu)
    - Change PCIEPARL and PCIEPARH to PCIEPALR and PCIEPAUR (Nobuhiro Iwamatsu)
    - Verify that mem_res is 64K-aligned (Nobuhiro Iwamatsu)

  Samsung Exynos host bridge driver
    - Fix INTx enablement statement termination error (Jaehoon Chung)

  Miscellaneous
    - Make a shareable UUID for PCI firmware ACPI _DSM (Aaron Lu)
    - Clarify policy for vendor IDs in pci.txt (Michael S. Tsirkin)"

* tag 'pci-v4.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (36 commits)
  PCI: Read capability list as dwords, not bytes
  PCI: layerscape: Simplify platform_get_resource_byname() failure checking
  PCI: keystone: Don't dereference possible NULL pointer
  PCI: versatile: Check for devm_ioremap_resource() failures
  PCI: Don't clear ASPM bits when the FADT declares it's unsupported
  PCI: Clarify policy for vendor IDs in pci.txt
  PCI/ACPI: Optimize device state transition delays
  PCI: Export pci_find_host_bridge() for use inside PCI core
  PCI: Make a shareable UUID for PCI firmware ACPI _DSM
  PCI: Fix typo in Thunderbolt kernel message
  PCI: exynos: Fix INTx enablement statement termination error
  PCI: iproc: Add Broadcom iProc PCIe support
  PCI: iproc: Add DT docs for Broadcom iProc PCIe driver
  PCI: Export symbols required for loadable host driver modules
  PCI: Add ACS quirks for Intel 1G NICs
  PCI: mvebu: Add suspend/resume support
  PCI: Cleanup control flow
  sparc/PCI: Claim bus resources before pci_bus_add_devices()
  PCI: Assign resources before drivers claim devices (pci_scan_root_bus())
  PCI: Fail pci_ioremap_bar() on unassigned resources
  ...
 2015-04-13 15:45:47 -07:00
Linus Torvalds
a21c1ea656 power supply and reset changes for the v4.1 series 
* new API for safe access of power supply function attrs
  * devres support for power supply (un)registration
  * new drivers / chips
   - generic syscon based poweroff driver
   - iio & charger driver for da9150
   - fuel gauge driver for axp288
   - bq27x00: add support for bq27510
   - bq2415x: add support for bq24157s
  * twl4030-madc-battery: convert to iio consumer
  * misc fixes
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Merge tag 'for-v4.1' of git://git.infradead.org/battery-2.6

Pull power supply and reset changes from Sebastian Reichel:

 - new API for safe access of power supply function attrs

 - devres support for power supply (un)registration

 - new drivers / chips:
     - generic syscon based poweroff driver
     - iio & charger driver for da9150
     - fuel gauge driver for axp288
     - bq27x00: add support for bq27510
     - bq2415x: add support for bq24157s

 - twl4030-madc-battery: convert to iio consumer

 - misc fixes

* tag 'for-v4.1' of git://git.infradead.org/battery-2.6: (66 commits)
  power: twl4030_madc_battery: Add missing MODULE_ALIAS
  power: twl4030-madc-battery: Convert to iio consumer.
  dt: power: Add docs for generic SYSCON poweroff driver.
  power: reset: Add generic SYSCON register mapped poweroff.
  power: max17042_battery: add missed blank
  power: max17042_battery: Use reg type instead of chip type
  power/reset: at91: big endian fixes for atsama5d3x
  power_supply: charger-manager: Fix dereferencing of ERR_PTR
  HID: input: Fix NULL pointer dereference when power_supply_register fails
  power: constify of_device_id array
  power/reset/rmobile-reset.c: Fix !HAS_IOMEM build
  power_supply: 88pm860x_charger: Fix possible NULL pointer dereference and use of initialized variable
  arm: mach-pxa: Decrement the power supply's device reference counter
  mfd: ab8500: Decrement the power supply's device reference counter
  power_supply: bq2415x_charger: Decrement the power supply's device reference counter
  power_supply: 88pm860x_charger: Decrement the power supply's device reference counter
  x86/olpc/xo15/sci: Use newly added power_supply_put API
  x86/olpc/xo1/sci: Use newly added power_supply_put API
  power_supply: charger-manager: Decrement the power supply's device reference counter
  power_supply: Increment power supply use counter when obtaining references
  ...
 2015-04-13 15:21:34 -07:00
Linus Torvalds
d700b05671 regulator: Updates for v4.1 
Another release, another set of regulator updates.  Not much of it is
 showing up in the code yet but there's been a lot of discussion going on
 about how to enhance the regulator API to work better with modern SoCs
 which have a microcontroller sitting between Linux and the hardware.
 I'm hopeful that'll start to come through into mainline for v4.2 but
 it's not quite there for v4.1 - what we do have (along with the usual
 small updates is) is:
 
  - Work from Bjorn Andersson on refactoring the configuration of
    regulator loading interfaces to be useful for use with
    microcontrollers, the existing interfaces were never actually useful
    for anything as-is since nobody was willing to put enough data into
    public code.
  - A summary tree display in debugfs from Heiko Stübner.
  - Support for act6000 regulators.
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Merge tag 'regulator-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "Another release, another set of regulator updates.  Not much of it is
  showing up in the code yet but there's been a lot of discussion going
  on about how to enhance the regulator API to work better with modern
  SoCs which have a microcontroller sitting between Linux and the
  hardware.

  I'm hopeful that'll start to come through into mainline for v4.2 but
  it's not quite there for v4.1 - what we do have (along with the usual
  small updates is) is:

   - work from Bjorn Andersson on refactoring the configuration of
     regulator loading interfaces to be useful for use with
     microcontrollers, the existing interfaces were never actually
     useful for anything as-is since nobody was willing to put enough
     data into public code.

   - a summary tree display in debugfs from Heiko Stübner.

   - support for act6000 regulators"

* tag 'regulator-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (34 commits)
  regulator: max8660: Handle empty regulator data
  regulator: output current-limit for all regulators in summary
  regulator: add a summary tree in debugfs
  regulator: qcom: Tidy up probe()
  regulator: qcom: Rework to single platform device
  regulator: qcom: Refactor of-parsing code
  regulator: qcom: Don't enable DRMS in driver
  regulator: max8660: fix assignment of pdata to data that becomes dead
  regulator: Defer lookup of supply to regulator_get
  mfd: max77693: Remove unused structures
  regulator: max77693: Let core parse DT and drop board files support
  regulator: Ensure unique regulator debugfs directory names
  regulator: stw481x: Remove unused fields from struct stw481x
  regulator: palmas: Add has_regen3 check for TPS659038
  regulator: constify of_device_id array
  regulator: fixes for regulator_set_optimum_mode name change
  regulator: Drop temporary regulator_set_optimum_mode wrapper
  usb: phy: phy-msm-usb: Rename regulator_set_optimum_mode
  usb: phy: ab8500-usb: Rename regulator_set_optimum_mode
  ufs: Rename of regulator_set_optimum_mode
  ...
 2015-04-13 15:13:25 -07:00
Linus Torvalds
0055dc5b23 spi: Updates for v4.1 
Only one framework update this time around, a change from Lars-Peter to
 move full to pm_ops and remove the legacy bus PM ops.  Otherwise it's
 all driver updates:
 
  - Make the spidev driver complain loudly if registered as spidev with
    DT rather than with a compatible string, hopefully helping people
    avoid making that mistake.
  - Error handling and robustness fixes for the Designware and Intel MID
    drivers from Andy Shevchenko.
  - Substantial performance improvements for the Raspberry Pi driver from
    Martin Sperl.
  - Several new features for spidev_test from Adrian Remonda and Ian
    Abbott.
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Merge tag 'spi-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "Only one framework update this time around, a change from Lars-Peter
  to move full to pm_ops and remove the legacy bus PM ops.  Otherwise
  it's all driver updates:

   - make the spidev driver complain loudly if registered as spidev with
     DT rather than with a compatible string, hopefully helping people
     avoid making that mistake.

   - error handling and robustness fixes for the Designware and Intel
     MID drivers from Andy Shevchenko.

   - substantial performance improvements for the Raspberry Pi driver
     from Martin Sperl.

   - several new features for spidev_test from Adrian Remonda and Ian
     Abbott"

* tag 'spi-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (75 commits)
  spi: bcm2835: enabling polling mode for transfers shorter than 30us
  spi: bcm2835: transform native-cs to gpio-cs on first spi_setup
  spi: img-spfi: Control CS lines with GPIO
  spi: img-spfi: Reset controller after each message
  spi: img-spfi: Implement a handle_err() callback
  spi: img-spfi: Setup TRANSACTION register before CONTROL register
  spi: Make master->handle_err() callback optional to avoid crashes
  spi: img-spfi: Limit bit clock to 1/4th of input clock
  spi: img-spfi: Implement a prepare_message() callback
  spi: fsl-dspi: Add ~50ns delay between cs and sck
  spi: fsl-dspi: Add cs-sck delays
  spi: fsl-dspi: Fix clock rate scale values
  spi: signedness bug in qspi_trigger_transfer_out_int()
  spi: imx: read back the RX/TX watermark levels earlier
  spi: spi-bfin5xx: Initialize cr_width in bfin_spi_pump_transfers()
  spi: bitbang: only toggle bitchanges
  spi: pxa2xx: missing break in pxa2xx_ssp_get_clk_div()
  spi: fsl-dspi: Fix clock rate scale values
  spi: Using Trigger number to transmit/receive data
  spi: bcm2835: fill FIFO before enabling interrupts to reduce interrupts/message
  ...
 2015-04-13 15:05:40 -07:00
Linus Torvalds
8d9095c667 MMC core: 
- Add support for marking HPI as broken through devicetree
 - Enable runtime PM management of host devices
 - Remove the ->enable|disable() callbacks
 - Restructure code and cleanups
 - Refreshed some of the MMC sections in MAINTAINERS
 
 MMC host:
 - dw_mmc: HS400 mode support
 - dw_mmc: Add the cmd11 timer to detect a timeout
 - dw_mmc: Endian agnostic IO accessors
 - dw_mmc: Bugfixes
 - sh_mmcif: Add exclusion between cmd and interrupt
 - omap_hsmmc: Hibernation support
 - omap_hsmmc: Rework and simplify cover/card detect
 - omap_hsmmc: Stop using ->enable|disable() callbacks
 - atmel-mci: Endian agnostic IO
 - sunxi: Enable MMC_CAP_SDIO_IRQ
 - sdhci-st: Add support for the stih407 family silicon
 - sdhci-st: UHS card support in SDR104 mode
 - sdhci-st: HS200 mode support
 - sdhci-esdhc-imx: Use common mmc DT parser
 - sdhci-of-arasan: Use common mmc DT parser
 - sdhci-iproc: Add new driver for Broadcom IPROC SDHCI controller
 - sdhci-tegra: Convert to GPIO descriptors
 - sdhci-tegra: Optmize write_w path for tegra114 and later
 - sdhci-sirf: Update tuning procedure
 - sdhci: Fix card presence logic
 - sdhci: Cleanups and consolidation
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Merge tag 'mmc-v4.1' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Add support for marking HPI as broken through devicetree
   - Enable runtime PM management of host devices
   - Remove the ->enable|disable() callbacks
   - Restructure code and cleanups
   - Refreshed some of the MMC sections in MAINTAINERS

  MMC host:
   - dw_mmc: HS400 mode support
   - dw_mmc: Add the cmd11 timer to detect a timeout
   - dw_mmc: Endian agnostic IO accessors
   - dw_mmc: Bugfixes
   - sh_mmcif: Add exclusion between cmd and interrupt
   - omap_hsmmc: Hibernation support
   - omap_hsmmc: Rework and simplify cover/card detect
   - omap_hsmmc: Stop using ->enable|disable() callbacks
   - atmel-mci: Endian agnostic IO
   - sunxi: Enable MMC_CAP_SDIO_IRQ
   - sdhci-st: Add support for the stih407 family silicon
   - sdhci-st: UHS card support in SDR104 mode
   - sdhci-st: HS200 mode support
   - sdhci-esdhc-imx: Use common mmc DT parser
   - sdhci-of-arasan: Use common mmc DT parser
   - sdhci-iproc: Add new driver for Broadcom IPROC SDHCI controller
   - sdhci-tegra: Convert to GPIO descriptors
   - sdhci-tegra: Optmize write_w path for tegra114 and later
   - sdhci-sirf: Update tuning procedure
   - sdhci: Fix card presence logic
   - sdhci: Cleanups and consolidation"

* tag 'mmc-v4.1' of git://git.linaro.org/people/ulf.hansson/mmc: (79 commits)
  mmc: sdhci-st: Update ST SDHCI binding documentation.
  mmc: sdhci-st: Update the quirks for this controller.
  mmc: sdhci-st: Add sdhci_st_set_uhs_signaling function.
  mmc: sdhci-st: Add st_mmcss_cconfig function to configure mmcss glue registers.
  mmc: sdhci-st: Add delay management functions for top registers (eMMC).
  mmc: sdhci-st: Add support for de-asserting reset signal and top regs resource
  mmc: sdhci-st: Add macros for register offsets and bitfields for mmcss glue regs
  mmc: sdhci-esdhc-imx: Call mmc_of_parse()
  mmc: dw_mmc: Add locking around cmd11 timer
  mmc: dw_mmc: Add a return in an unexpected cmd11 timeout
  mmc: dw_mmc: Increase cmd11 timeout to 500ms
  mmc: dw_mmc: fix fifo ordering in big endian
  mmc: dw_mmc: change idmac descriptor files to __le32
  mmc: dw_mmc: make IO accessors endian agnostic
  mmc: core: Convert the error field in struct mmc_command|data into an int
  mmc: sdhci-of-arasan: Call OF parsing for MMC
  mmc: sdhci-pci: fix 64 BIT DMA quirks for rtsx
  mmc: Add support for marking hpi as broken through devicetree
  mmc: sdhci-tegra: convert to use GPIO descriptors
  mmc: omap_hsmmc: use generic slot-gpio isr to manage card detect pin
  ...
 2015-04-13 14:53:03 -07:00
Jiri Kosina
2e455c27bd Merge branch 'for-4.1/sensor-hub' into for-linus 
Conflicts:
	drivers/iio/common/hid-sensors/hid-sensor-trigger.c
	include/linux/hid-sensor-hub.h
 2015-04-13 23:43:34 +02:00
Jiri Kosina
05f6d02521 Merge branches 'for-4.0/upstream-fixes', 'for-4.1/genius', 'for-4.1/huion-uclogic-merge', 'for-4.1/i2c-hid', 'for-4.1/kconfig-drop-expert-dependency', 'for-4.1/logitech', 'for-4.1/multitouch', 'for-4.1/rmi', 'for-4.1/sony', 'for-4.1/upstream' and 'for-4.1/wacom' into for-linus 2015-04-13 23:41:15 +02:00
Linus Torvalds
4b5ca74113 - Support for new chips 
- Add support for IT8620E, IT8781F, IT8786E, and IT8790E to it87 driver
   - Add driver for NCT7904
 - Functional improvements
   - Support for new devicetree structure in ibmpowernv driver
   - Register pwm-fan and gpio-fan drivers as thermal cooling devices
   - Various minor cleanup and improvements to it87, nct6775, jc42,
     ibmpex, and coretemp drivers
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Merge tag 'hwmon-for-linus-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "Support for new chips:

   - add support for IT8620E, IT8781F, IT8786E, and IT8790E to it87
     driver

   - add driver for NCT7904

  Functional improvements:

   - support for new devicetree structure in ibmpowernv driver

   - register pwm-fan and gpio-fan drivers as thermal cooling devices

   - various minor cleanup and improvements to it87, nct6775, jc42,
     ibmpex, and coretemp drivers"

* tag 'hwmon-for-linus-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (43 commits)
  hwmon: (pwm-fan) Update the duty cycle inorder to control the pwm-fan
  hwmon: (it87) Use feature macros on sio_data
  hwmon: (ibmpowernv) Fix build error seen for some configurations
  hwmon: (gpio-fan) Move the thermal registration after registration is complete
  hwmon: (ibmpowernv) pretty print labels
  hwmon: (ibmpowernv) add a label attribute
  hwmon: (ibmpowernv) add support for the new device tree
  hwmon: (ibmpowernv) add a helper routine create_hwmon_attr
  hwmon: (it87) Add support for 6th fan of IT8620E
  hwmon: (it87) Add support for IT8620E
  hwmon: (it87) Add support for IT8790E
  hwmon: (it87) Introduce feature flag to reflect internal in7 sensor
  hwmon: (it87) Introduce configuration field for chip suffix
  hwmon: (it87) Fix PWM frequency display for chips with newer PWM control
  hwmon: (it87) Fix pwm sysfs attribute removal
  hwmon: (ibmpowernv) do not use the OPAL index for hwmon attribute names
  hwmon: (ibmpowernv) change create_hwmon_attr_name() prototype
  hwmon: (ibmpowernv) add a convert_opal_attr_name() routine
  hwmon: (ibmpowernv) add a get_sensor_type() routine
  hwmon: (ibmpowernv) replace AMBIENT_TEMP by TEMP
  ...
 2015-04-13 14:39:25 -07:00
Linus Torvalds
07f2d8c63f Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 RAS changes from Ingo Molnar:
 "The main changes in this cycle were:

   - Simplify the CMCI storm logic on Intel CPUs after yet another
     report about a race in the code (Borislav Petkov)

   - Enable the MCE threshold irq on AMD CPUs by default (Aravind
     Gopalakrishnan)

   - Add AMD-specific MCE-severity grading function.  Further error
     recovery actions will be based on its output (Aravind Gopalakrishnan)

   - Documentation updates (Borislav Petkov)

   - ... assorted fixes and cleanups"

* 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce/severity: Fix warning about indented braces
  x86/mce: Define mce_severity function pointer
  x86/mce: Add an AMD severities-grading function
  x86/mce: Reindent __mcheck_cpu_apply_quirks() properly
  x86/mce: Use safe MSR accesses for AMD quirk
  x86/MCE/AMD: Enable thresholding interrupts by default if supported
  x86/MCE: Make mce_panic() fatal machine check msg in the same pattern
  x86/MCE/intel: Cleanup CMCI storm logic
  Documentation/acpi/einj: Correct and streamline text
  x86/MCE/AMD: Drop bogus const modifier from AMD's bank4_names()
 2015-04-13 13:33:20 -07:00
Linus Torvalds
60f898eeaa Merge branch 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 asm changes from Ingo Molnar:
 "There were lots of changes in this development cycle:

   - over 100 separate cleanups, restructuring changes, speedups and
     fixes in the x86 system call, irq, trap and other entry code, part
     of a heroic effort to deobfuscate a decade old spaghetti asm code
     and its C code dependencies (Denys Vlasenko, Andy Lutomirski)

   - alternatives code fixes and enhancements (Borislav Petkov)

   - simplifications and cleanups to the compat code (Brian Gerst)

   - signal handling fixes and new x86 testcases (Andy Lutomirski)

   - various other fixes and cleanups

  By their nature many of these changes are risky - we tried to test
  them well on many different x86 systems (there are no known
  regressions), and they are split up finely to help bisection - but
  there's still a fair bit of residual risk left so caveat emptor"

* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (148 commits)
  perf/x86/64: Report regs_user->ax too in get_regs_user()
  perf/x86/64: Simplify regs_user->abi setting code in get_regs_user()
  perf/x86/64: Do report user_regs->cx while we are in syscall, in get_regs_user()
  perf/x86/64: Do not guess user_regs->cs, ss, sp in get_regs_user()
  x86/asm/entry/32: Tidy up JNZ instructions after TESTs
  x86/asm/entry/64: Reduce padding in execve stubs
  x86/asm/entry/64: Remove GET_THREAD_INFO() in ret_from_fork
  x86/asm/entry/64: Simplify jumps in ret_from_fork
  x86/asm/entry/64: Remove a redundant jump
  x86/asm/entry/64: Optimize [v]fork/clone stubs
  x86/asm/entry: Zero EXTRA_REGS for stub32_execve() too
  x86/asm/entry/64: Move stub_x32_execvecloser() to stub_execveat()
  x86/asm/entry/64: Use common code for rt_sigreturn() epilogue
  x86/asm/entry/64: Add forgotten CFI annotation
  x86/asm/entry/irq: Simplify interrupt dispatch table (IDT) layout
  x86/asm/entry/64: Move opportunistic sysret code to syscall code path
  x86, selftests: Add sigreturn selftest
  x86/alternatives: Guard NOPs optimization
  x86/asm/entry: Clear EXTRA_REGS for all executable formats
  x86/signal: Remove pax argument from restore_sigcontext
  ...
 2015-04-13 13:16:36 -07:00
Linus Torvalds
9c65e12a55 Merge branch 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull EFI update from Ingo Molnar:
 "This tree includes various fixes, cleanups, a new efi=debug boot
  option and EFI boot stub memory allocation optimizations"

* 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/libstub: Retrieve FDT size when loaded from UEFI config table
  efi: Clean up the efi_call_phys_[prolog|epilog]() save/restore interaction
  efi: Disable interrupts around EFI calls, not in the epilog/prolog calls
  x86/efi: Add a "debug" option to the efi= cmdline
  firmware: dmi_scan: Use direct access to static vars
  firmware: dmi_scan: Use full dmi version for SMBIOS3
 2015-04-13 10:22:30 -07:00
Linus Torvalds
9003601310 The most interesting bit here is irqfd/ioeventfd support for ARM and ARM64. 
ARM/ARM64: fixes for live migration, irqfd and ioeventfd support (enabling
 vhost, too), page aging
 
 s390: interrupt handling rework, allowing to inject all local interrupts
 via new ioctl and to get/set the full local irq state for migration
 and introspection.  New ioctls to access memory by virtual address,
 and to get/set the guest storage keys.  SIMD support.
 
 MIPS: FPU and MIPS SIMD Architecture (MSA) support.  Includes some patches
 from Ralf Baechle's MIPS tree.
 
 x86: bugfixes (notably for pvclock, the others are small) and cleanups.
 Another small latency improvement for the TSC deadline timer.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM updates from Paolo Bonzini:
 "First batch of KVM changes for 4.1

  The most interesting bit here is irqfd/ioeventfd support for ARM and
  ARM64.

  Summary:

  ARM/ARM64:
     fixes for live migration, irqfd and ioeventfd support (enabling
     vhost, too), page aging

  s390:
     interrupt handling rework, allowing to inject all local interrupts
     via new ioctl and to get/set the full local irq state for migration
     and introspection.  New ioctls to access memory by virtual address,
     and to get/set the guest storage keys.  SIMD support.

  MIPS:
     FPU and MIPS SIMD Architecture (MSA) support.  Includes some
     patches from Ralf Baechle's MIPS tree.

  x86:
     bugfixes (notably for pvclock, the others are small) and cleanups.
     Another small latency improvement for the TSC deadline timer"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (146 commits)
  KVM: use slowpath for cross page cached accesses
  kvm: mmu: lazy collapse small sptes into large sptes
  KVM: x86: Clear CR2 on VCPU reset
  KVM: x86: DR0-DR3 are not clear on reset
  KVM: x86: BSP in MSR_IA32_APICBASE is writable
  KVM: x86: simplify kvm_apic_map
  KVM: x86: avoid logical_map when it is invalid
  KVM: x86: fix mixed APIC mode broadcast
  KVM: x86: use MDA for interrupt matching
  kvm/ppc/mpic: drop unused IRQ_testbit
  KVM: nVMX: remove unnecessary double caching of MAXPHYADDR
  KVM: nVMX: checks for address bits beyond MAXPHYADDR on VM-entry
  KVM: x86: cache maxphyaddr CPUID leaf in struct kvm_vcpu
  KVM: vmx: pass error code with internal error #2
  x86: vdso: fix pvclock races with task migration
  KVM: remove kvm_read_hva and kvm_read_hva_atomic
  KVM: x86: optimize delivery of TSC deadline timer interrupt
  KVM: x86: extract blocking logic from __vcpu_run
  kvm: x86: fix x86 eflags fixed bit
  KVM: s390: migrate vcpu interrupt state
  ...
 2015-04-13 09:47:01 -07:00
Linus Torvalds
4541fec310 linux-kselftest-4.1-rc1 
This update adds install and packaging tools developed on top
 of back-end shared logic enhancemnets to run and install tests.
 In addition several timer tests are added.
 
 - New timer tests from John Stultz
 - rtc test from Prarit Bhargava
 - Enhancements to un and install tests from Michael Ellerman
 - Install and packaging tools from Shuah Khan
 - Cross-compilation enablement from Tyler Baker
 - A couple of bug fixes.
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Merge tag 'linux-kselftest-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:
 "This is a milestone update in a sense.  Several new tests and install
  and packaging support is added in this update.

  This update adds install and packaging tools developed on top of
  back-end shared logic enhancemnets to run and install tests.  In
  addition several timer tests are added.

   - New timer tests from John Stultz

   - rtc test from Prarit Bhargava

   - Enhancements to un and install tests from Michael Ellerman

   - Install and packaging tools from Shuah Khan

   - Cross-compilation enablement from Tyler Baker

   - A couple of bug fixes"

* tag 'linux-kselftest-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (42 commits)
  ftracetest: Do not use usleep directly
  selftest/mqueue: enable cross compilation
  selftest/ipc: enable cross compilation
  selftest/memfd: include default header install path
  selftest/mount: enable cross compilation
  selftest/memfd: enable cross compilation
  kselftests: timers: Make set-timer-lat fail more gracefully for !CAP_WAKE_ALARM
  selftests: Change memory on-off-test.sh name to be unique
  selftests: change cpu on-off-test.sh name to be unique
  selftests/mount: Make git ignore all binaries in mount test suite
  kselftests: timers: Reduce default runtime on inconsistency-check and set-timer-lat
  ftracetest: Convert exit -1 to exit $FAIL
  ftracetest: Cope properly with stack tracer not being enabled
  tools, update rtctest.c to verify passage of time
  Documentation, split up rtc.txt into documentation and test file
  selftests: Add tool to generate kselftest tar archive
  selftests: Add kselftest install tool
  selftests: Set CC using CROSS_COMPILE once in lib.mk
  selftests: Add install support for the powerpc tests
  selftests/timers: Use shared logic to run and install tests
  ...
 2015-04-13 08:59:21 -07:00
Takashi Iwai
ce4524e5a7 ASoC: Updates for v4.1 
More updates for v4.1, pretty much all drivers:
 
  - Lots of cleanups from Lars, mainly moving things from the CODEC level
    to the card level.
  - Continuing improvements to rcar from Morimoto-san, pcm512x from
    Howard and Peter, the Intel platforms from Vinod, Jie, Jin and Han,
    and to rt5670 from Bard.
  - Support for some non-DSP Qualcomm platforms, Google's Storm
    platform, Maxmim MAX98925 CODECs and the Ingenic JZ4780 SoC.
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Merge tag 'asoc-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v4.1

More updates for v4.1, pretty much all drivers:

 - Lots of cleanups from Lars, mainly moving things from the CODEC level
   to the card level.
 - Continuing improvements to rcar from Morimoto-san, pcm512x from
   Howard and Peter, the Intel platforms from Vinod, Jie, Jin and Han,
   and to rt5670 from Bard.
 - Support for some non-DSP Qualcomm platforms, Google's Storm
   platform, Maxmim MAX98925 CODECs and the Ingenic JZ4780 SoC.
 2015-04-13 14:14:29 +02:00
Dave Airlie
1d2add28ed imx-drm changes to use media bus formats and LDB drm_panel support 
- Add media bus formats needed by imx-drm
 - Switch to use media bus formats to describe the pixel format
   on the internal parallel bus between display interface and
   encoders
 - Some preparations for TV Output via TVEv2 on i.MX5
 - Add drm_panel support to the i.MX LVDS driver, allow to
   determine the bus pixel format from the panel descriptor.
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Merge tag 'imx-drm-next-2015-03-31' of git://git.pengutronix.de/git/pza/linux into drm-next

imx-drm changes to use media bus formats and LDB drm_panel support

- Add media bus formats needed by imx-drm
- Switch to use media bus formats to describe the pixel format
  on the internal parallel bus between display interface and
  encoders
- Some preparations for TV Output via TVEv2 on i.MX5
- Add drm_panel support to the i.MX LVDS driver, allow to
  determine the bus pixel format from the panel descriptor.

* tag 'imx-drm-next-2015-03-31' of git://git.pengutronix.de/git/pza/linux:
  drm/imx: imx-ldb: allow to determine bus format from the connected panel
  drm/imx: imx-ldb: reset display clock input when disabling LVDS
  drm/imx: imx-ldb: add drm_panel support
  drm/imx: consolidate bus format variable names
  drm/imx: switch to use media bus formats
  Add RGB666_1X24_CPADHI media bus format
  Add YUV8_1X24 media bus format
  Add BGR888_1X24 and GBR888_1X24 media bus formats
  Add LVDS RGB media bus formats
  Add RGB444_1X12 and RGB565_1X16 media bus formats
  drm/imx: ipuv3-crtc: Allow to divide DI clock from TVEv2
  drm/imx: Add support for interlaced scanout
 2015-04-13 17:28:57 +10:00
Dave Airlie
bb1dc08c94 drm: Use of-graph helpers to loop over endpoints 
Convert all drm callers that use of_graph_get_next_endpoint to loop over
 of-graph endpoints to the newly introduced for_each_endpoint_of_node
 helper macro.
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Merge tag 'of-graph-drm-2015-04-08' of git://git.pengutronix.de/git/pza/linux into drm-next

drm: Use of-graph helpers to loop over endpoints

Convert all drm callers that use of_graph_get_next_endpoint to loop over
of-graph endpoints to the newly introduced for_each_endpoint_of_node
helper macro.

* tag 'of-graph-drm-2015-04-08' of git://git.pengutronix.de/git/pza/linux:
  drm/rockchip: use for_each_endpoint_of_node macro, drop endpoint reference on break
  drm/rcar-du: use for_each_endpoint_of_node macro
  drm/imx: use for_each_endpoint_of_node macro in imx_drm_encoder_get_mux_id
  drm: use for_each_endpoint_of_node macro in drm_of_find_possible_crtcs
  of: Explicitly include linux/types.h in of_graph.h
  dt-bindings: brcm: rationalize Broadcom documentation naming
  of/unittest: replace 'selftest' with 'unittest'
  Documentation: rename of_selftest.txt to of_unittest.txt
  Documentation: update the of_selftest.txt
  dt: OF_UNITTEST make dependency broken
  MAINTAINERS: Pantelis Antoniou device tree overlay maintainer
  of: Add of_graph_get_port_by_id function
  of: Add for_each_endpoint_of_node helper macro
  of: Decrement refcount of previous endpoint in of_graph_get_next_endpoint
 2015-04-13 17:28:16 +10:00
Max Filippov
b67c961cb8 irqchip: xtensa-pic: xtensa-mx: document DT bindings 
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
 2015-04-13 09:02:45 +03:00
Rafael J. Wysocki
0fe0952b21 Merge branches 'pm-sleep' and 'pm-domains' 
* pm-sleep:
  PM / watchdog: iTCO: stop watchdog during system suspend
  PM / sleep: add pm-trace support for suspending phase
  PM / sleep: add configurable delay for pm_test

* pm-domains:
  PM / domains: avoid potential oops in pm_genpd_remove_device()
  PM / domains: factor out code to get the generic PM domain from a struct device
  PM / domains: quieten down generic pm domains
  PM / Domains: Sync runtime PM status with genpd after probe
  driver core / PM: Add PM domain callbacks for device setup/cleanup
  MAINTAINERS: add entry for Generic PM domains (genpd)
 2015-04-13 00:37:13 +02:00
Rafael J. Wysocki
f303906d4d Merge branches 'acpi-pm', 'acpi-enumeration' and 'acpi-sysfs' 
* acpi-pm:
  ACPI / PM: Enable all wakeup GPEs in suspend-to-idle
  ACPI / sleep: Drop acpi_suspend() which is not used

* acpi-enumeration:
  ACPI: Add acpi_device_uid() for convenience
  ACPI: Update GPIO documentation to mention _DSD

* acpi-sysfs:
  ACPI / sysfs: Treat the count field of counter_show() as unsigned
 2015-04-13 00:34:00 +02:00
Mark Brown
7667428f80 Merge remote-tracking branches 'asoc/topic/wm2200', 'asoc/topic/wm5100', 'asoc/topic/wm8731', 'asoc/topic/wm8804' and 'asoc/topic/wm8996' into asoc-next 2015-04-12 19:49:22 +01:00