Commit graph

560543 commits

Author SHA1 Message Date
Rhyland Klein 6b301a059e clk: tegra: Add support for Tegra210 clocks
Implement clock support for Tegra210.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-12-17 13:37:56 +01:00
Bill Huang 139fd30943 clk: tegra: Add Super Gen5 Logic
Super clock divider control and clock source mux of Tegra210 has changed
a little against prior SoCs, this patch adds Gen5 logic to address those
differences.

Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-12-17 13:37:55 +01:00
Bill Huang 0ef9db6cf2 clk: tegra: pll: Add logic for SS
Add some logic for Spread Spectrum control. It is used in conjuncture
with SDM fractional dividers. SSC has to be disabled when we configure
the divider settings.

Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-12-17 13:37:55 +01:00
Rhyland Klein 17e9273a9e clk: tegra: pll: Add dyn_ramp callback
Add a callback to the pll_params for custom dynamic ramping
functions which can be specified per PLL.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-12-17 13:37:54 +01:00
Bill Huang b985114e2f clk: tegra: pll: Add Set_default logic
Add logic which (if specified for a pll) can verify that a PLL is set
to the proper default value and if not can set it. This can be
specified per PLL as each will have different default values.

Based on original work by Aleksandr Frid <afrid@nvidia.com>

Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-12-17 13:37:54 +01:00
Bill Huang b5512b45d5 clk: tegra: pll: Adjust vco_min if SDM present
This code makes use of the SDM fractional divider if present to
constrain the allowable programming range of the PLL divider register
bitfields to take advantage of higher frequency granularity that can
be induced by the SDM divider.

Based on original work by Aleksandr Frid <afrid@nvidia.com>

Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-12-17 13:37:53 +01:00
Rhyland Klein 6929715cf6 clk: tegra: pll: Add support for PLLMB for Tegra210
Tegra210 SoC's have 2 PLLs for memory usage. Add plumbing to register
and handle PLLMB.

PLLMB is used to allow switching between 2 PLLM's without having to use
and intermediate backup PLL, as we need to lock the PLL before we can
switch to it.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-12-17 13:37:53 +01:00
Rhyland Klein dd322f047d clk: tegra: pll: Add specialized logic for Tegra210
On Tegra210 SoC's, the logic to enable several of the plls is different
from previous generations. Therefore, add registration functions specific
to Tegra210 which will handle them appropriately.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-12-17 13:37:52 +01:00
Danny Huang 267b62a969 clk: tegra: pll: Update PLLM handling
PLLM is fixed for Tegra30 up through Tegra114. Starting with Tegra124
PLLM can change rate. Mark PLLM as TEGRA_PLL_FIXED for the generations
where it should be. Modify the check in clk_pll_round_rate() and
clk_pll_recalc_rate() to allow for the non-fixed version to return the
correct rate.

Note that there is no change for Tegra20. This is because PLLM is not
distinguished in that driver, and adding either the PLLM or FIXED_RATE
flags will cause potential problems.

PLLM never supported dynamic ramping. On Tegra20 and Tegra30, there is
no dynamic ramping at all, and on Tegra114, Tegra124 and Tegra132, only
PLLX and PLLC support dynamic ramping, so we can go ahead and remove the
specialized pllm_ops.

Signed-off-by: Danny Huang <dahuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:07:35 +01:00
Rhyland Klein 86c679a522 clk: tegra: pll: Fix _pll_ramp_calc_pll logic and _calc_dynamic_ramp_rate
This removes the conversion from pdiv to hw, which is already taken
care of by _get_table_rate before this code is run. This avoids
incorrectly converting pdiv to hw twice and getting the wrong hw value.

Also set the input_rate in the freq cfg in _calc_dynamic_ramp_rate while
setting all the other fields.

In order to prevent regressions on earlier SoC generations, all of the
frequency tables need to be updated so that they contain the actual
divider values. If they contain hardware values these would be converted
to hardware values again, yielding the wrong value.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
[treding@nvidia.com: fix regressions on earlier SoC generations]
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:07:28 +01:00
Bill Huang fde207eb15 clk: tegra: pll: Add code to handle if resets are supported by PLL
If a PLL has a reset_reg specified, properly handle that in the
enable/disable logic paths.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:05:04 +01:00
Rhyland Klein 407254da29 clk: tegra: pll: Add logic for out-of-table rates for T210
For Tegra210, the logic to calculate out-of-table rates is different
from previous generations. Add callbacks that can be overridden to
allow for different ways of calculating rates. Default to
_cal_rate when not specified.

This patch also includes a new flag which is used to set which method
of fixed_mdiv calculation is used. The new method for calculating the
fixed divider value for M can be more accurate especially when
fractional dividers are in play. This allows for older chipsets to use
the existing logic and new generations to use a newer version which
may work better for them.

Based on original work by Aleksandr Frid <afrid@nvidia.com>

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:05:03 +01:00
Rhyland Klein d907f4b4a1 clk: tegra: pll: Add logic for handling SDM data
This adds logic for taking SDM_DIN (Sigma Delta Modulator) setting into
the equation to calculate the effective N value for PLL which supports
fractional divider.

The effective N = NDIV + 1/2 + SDM_DIN/2^13, where NDIV is the integer
feedback divider.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:05:02 +01:00
Rhyland Klein 3706b43629 clk: tegra: pll: Don't unconditionally set LOCK flags
SoC specific drivers should define the appropriate flags for each
PLL rather than relying on the registration functions to automatically
set flags on their behalf. This will properly allow for changes between
SoC generations where flags might be different and allow sharing the
same logic functions.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:05:02 +01:00
Bill Huang 56fd27b31f clk: tegra: pll: Change misc_reg count from 3 to 6
New SoC's may have more than 3 MISC registers, so bump up the array size
and use a #define to be more informative about the value.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Bill Huang <bilhuang@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:04:49 +01:00
Rhyland Klein 204c85d124 clk: tegra: pll: Update warning message
Swap out the generic WARN_ON with a WARN which gives more information
about what is happening.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:04:35 +01:00
Rhyland Klein 7db864c9de clk: tegra: pll: Simplify clk_enable_path
Instead of having multiple similar wrapper functions for
_clk_pll_[enable|disable], we can simplify it to single
wrappers and use checks to avoid the logic we don't want to use.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:04:29 +01:00
Rhyland Klein 6583a6309e clk: tegra: pll: Add tegra_pll_wait_for_lock to clk header
Create a wrapper interface to make use of the existing
clk_pll_wait_for_lock. This will be useful for implementations
of callbacks in Tegra SoC specific clock drivers.

Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:04:25 +01:00
Rhyland Klein dc37fec483 clk: tegra: periph: Add new periph clks and muxes for Tegra210
Tegra210 has significant differences in muxes for peripheral clocks.
One of the most important changes is that pll_m isn't to be used
as a source for peripherals. Therefore, we need to define the new
muxes and new clocks to use those muxes for Tegra210 support.

Tegra210 has some differences in the PLLP clock tree:
- Four new output clocks: PLLP_OUT_CPU, PLLP_OUT_ADSP, PLLP_OUT_HSIO,
  and PLLP_OUT_XUSB.
- PLLP_OUT2 is fixed at 1/2 the rate of PLLP_VCO.
- PLLP_OUT4 is the child of PLLP_OUT_CPU.

Update the xusb_hs_src mux and add the xusb_ssp_src mux for Tegra210.

Including work by Andrew Bresticker <abrestic@chromium.org> and
Bill Huang <bilhuang@nvidia.com>.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:04:17 +01:00
Thierry Reding 385f9adf62 clk: tegra: Constify pdiv-to-hw mappings
This is static data that is never modified, so make it const.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-20 18:04:04 +01:00
Thierry Reding 8d99704fde clk: tegra: Format tables consistently
Use spaces around { and } and pad values so that the cells are properly
aligned.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-18 15:55:21 +01:00
Thierry Reding e52d7c04bb clk: tegra: Miscellaneous coding style cleanups
Use unsigned int for loop variables that can never become negative and
remove a couple of gratuitous blank lines. Also use single spaces around
operators and use a single space instead of a tab to separate comments
from code.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-18 15:54:11 +01:00
Thierry Reding c4947e364b clk: tegra: Fix 26 MHz oscillator frequency
The OSC_FREQ field of the OSC_CTRL register uses the value 12 for an
oscillator frequency of 26 MHz, not 260 MHz. This isn't really critical
because I don't think boards with such an oscillator have ever existed,
much less been supported upstream.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-18 14:59:22 +01:00
Thierry Reding 1d15cb9ce9 clk: tegra: Add Tegra210 device tree binding
Add a header file that defines the clock numbers for Tegra210. It is
meant to be included by device trees so that they can refer to the
clocks by symbolic name instead of numeric value.

Also add the device tree binding documentation which is largely the
same as for earlier generations of Tegra.

Extracted from a larger patch by Rhyland Klein <rklein@nvidia.com>.

Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-16 08:21:56 +01:00
Linus Torvalds 8005c49d9a Linux 4.4-rc1 2015-11-15 17:00:27 -08:00
Linus Torvalds 0ca9b67606 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Thomas Gleixner:
 "Mostly updates to the perf tool plus two fixes to the kernel core code:

   - Handle tracepoint filters correctly for inherited events (Peter
     Zijlstra)

   - Prevent a deadlock in perf_lock_task_context (Paul McKenney)

   - Add missing newlines to some pr_err() calls (Arnaldo Carvalho de
     Melo)

   - Print full source file paths when using 'perf annotate --print-line
     --full-paths' (Michael Petlan)

   - Fix 'perf probe -d' when just one out of uprobes and kprobes is
     enabled (Wang Nan)

   - Add compiler.h to list.h to fix 'make perf-tar-src-pkg' generated
     tarballs, i.e. out of tree building (Arnaldo Carvalho de Melo)

   - Add the llvm-src-base.c and llvm-src-kbuild.c files, generated by
     the 'perf test' LLVM entries, when running it in-tree, to
     .gitignore (Yunlong Song)

   - libbpf error reporting improvements, using a strerror interface to
     more precisely tell the user about problems with the provided
     scriptlet, be it in C or as a ready made object file (Wang Nan)

   - Do not be case sensitive when searching for matching 'perf test'
     entries (Arnaldo Carvalho de Melo)

   - Inform the user about objdump failures in 'perf annotate' (Andi
     Kleen)

   - Improve the LLVM 'perf test' entry, introduce a new ones for BPF
     and kbuild tests to check the environment used by clang to compile
     .c scriptlets (Wang Nan)"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
  perf/x86/intel/rapl: Remove the unused RAPL_EVENT_DESC() macro
  tools include: Add compiler.h to list.h
  perf probe: Verify parameters in two functions
  perf session: Add missing newlines to some pr_err() calls
  perf annotate: Support full source file paths for srcline fix
  perf test: Add llvm-src-base.c and llvm-src-kbuild.c to .gitignore
  perf: Fix inherited events vs. tracepoint filters
  perf: Disable IRQs across RCU RS CS that acquires scheduler lock
  perf test: Do not be case sensitive when searching for matching tests
  perf test: Add 'perf test BPF'
  perf test: Enhance the LLVM tests: add kbuild test
  perf test: Enhance the LLVM test: update basic BPF test program
  perf bpf: Improve BPF related error messages
  perf tools: Make fetch_kernel_version() publicly available
  bpf tools: Add new API bpf_object__get_kversion()
  bpf tools: Improve libbpf error reporting
  perf probe: Cleanup find_perf_probe_point_from_map to reduce redundancy
  perf annotate: Inform the user about objdump failures in --stdio
  perf stat: Make stat options global
  perf sched latency: Fix thread pid reuse issue
  ...
2015-11-15 09:36:24 -08:00
Linus Torvalds 051b29f279 Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
 "A single fix to prevent math underflow in the numa balancing code"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/numa: Fix math underflow in task_tick_numa()
2015-11-15 09:35:33 -08:00
Linus Torvalds 8f98e292eb Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull liblockdep fixes from Thomas Gleixner:
 "Three small patches to synchronize liblockdep with the latest core
  changes"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tools/liblockdep: explicitly declare lockdep API we call from liblockdep
  tools/liblockdep: add userspace versions of WRITE_ONCE and RCU_INIT_POINTER
  tools/liblockdep: remove task argument from debug_check_no_locks_held
2015-11-15 09:34:32 -08:00
Linus Torvalds bba072dfd7 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
 "A couple of fixes and updates related to x86:

   - Fix the W+X check regression on XEN

   - The real fix for the low identity map trainwreck

   - Probe legacy PIC early instead of unconditionally allocating legacy
     irqs

   - Add cpu verification to long mode entry

   - Adjust the cache topology to AMD Fam17H systems

   - Let Merrifield use the TSC across S3"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Call verify_cpu() after having entered long mode too
  x86/setup: Fix low identity map for >= 2GB kernel range
  x86/mm: Skip the hypervisor range when walking PGD
  x86/AMD: Fix last level cache topology for AMD Fam17h systems
  x86/irq: Probe for PIC presence before allocating descs for legacy IRQs
  x86/cpu/intel: Enable X86_FEATURE_NONSTOP_TSC_S3 for Merrifield
2015-11-15 09:32:59 -08:00
Linus Torvalds 511601bdbc Merge branches 'irq-urgent-for-linus' and 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq and timer fixes from Thomas Gleixner:

 - An irq regression fix to restore the wakeup behaviour of chained
   interrupts.

 - A timer fix for a long standing race versus timers scheduled on a
   target cpu which got exposed by recent changes in the workqueue
   implementation.

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/PM: Restore system wake up from chained interrupts

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  timers: Use proper base migration in add_timer_on()
2015-11-15 09:30:48 -08:00
Linus Torvalds b84da9fa47 Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
 "These are the highlists of the main MIPS pull request for 4.4:

   - Add latencytop support
   - Support appended DTBs
   - VDSO support and initially use it for gettimeofday.
   - Drop the .MIPS.abiflags and ELF NOTE sections from vmlinux
   - Support for the 5KE, an internal test core.
   - Switch all MIPS platfroms to libata drivers.
   - Improved support, cleanups for ralink and Lantiq platforms.
   - Support for the new xilfpga platform.
   - A number of DTB improvments for BMIPS.
   - Improved support for CM and CPS.
   - Minor JZ4740 and BCM47xx enhancements"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (120 commits)
  MIPS: idle: add case for CPU_5KE
  MIPS: Octeon: Support APPENDED_DTB
  MIPS: vmlinux: create a section for appended DTB
  MIPS: Clean up compat_siginfo_t
  MIPS: Fix PAGE_MASK definition
  MIPS: BMIPS: Enable GZIP ramdisk and timed printks
  MIPS: Add xilfpga defconfig
  MIPS: xilfpga: Add mipsfpga platform code
  MIPS: xilfpga: Add xilfpga device tree files.
  dt-bindings: MIPS: Document xilfpga bindings and boot style
  MIPS: Make MIPS_CMDLINE_DTB default
  MIPS: Make the kernel arguments from dtb available
  MIPS: Use USE_OF as the guard for appended dtb
  MIPS: BCM63XX: Use pr_* instead of printk
  MIPS: Loongson: Cleanup CONFIG_LOONGSON_SUSPEND.
  MIPS: lantiq: Disable xbar fpi burst mode
  MIPS: lantiq: Force the crossbar to big endian
  MIPS: lantiq: Initialize the USB core on boot
  MIPS: lantiq: Return correct value for fpi clock on ar9
  MIPS: ralink: Add missing clock on rt305x
  ...
2015-11-15 09:10:53 -08:00
Linus Torvalds 12b76f3bf3 sound fixes for 4.4-rc1
Here are a collection of small fixes tha have been gathered for
 4.4-rc1.  The only significant changes are those in PCI drivers
 Kconfig, to use "depends on" instead of "select" for CONFIG_ZONE_DMA.
 A reverse select is often more user-friendly, but in this case, it
 makes hard to manage with the conflict with ZONE_DEVICE, so changed in
 such a way for now.
 
 Others are all small fixes and quirks: an error check in soundcore
 reigster_chrdev(), HD-audio HDMI/DP phantom jack fix, Intel Broxton DP
 quirk, USB-audio DSD device quirk, some constifications, etc.
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Merge tag 'sound-fix-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are a collection of small fixes tha have been gathered for
  4.4-rc1.  The only significant changes are those in PCI drivers
  Kconfig, to use "depends on" instead of "select" for CONFIG_ZONE_DMA.
  A reverse select is often more user-friendly, but in this case, it
  makes hard to manage with the conflict with ZONE_DEVICE, so changed in
  such a way for now.

  Others are all small fixes and quirks: an error check in soundcore
  reigster_chrdev(), HD-audio HDMI/DP phantom jack fix, Intel Broxton DP
  quirk, USB-audio DSD device quirk, some constifications, etc"

* tag 'sound-fix-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: pci: depend on ZONE_DMA
  ALSA: hda - Simplify phantom jack handling for HDMI/DP
  ALSA: hda/hdmi - apply Skylake fix-ups to Broxton display codec
  ALSA: ctxfi: constify rsc ops structures
  ALSA: usb: Add native DSD support for Aune X1S
  ALSA: oxfw: add an comment to Kconfig for TASCAM FireOne
  sound: fix check for error condition of register_chrdev()
2015-11-14 09:43:00 -08:00
Linus Torvalds b3a0d9a232 ARC fixes for 4.4-rc1
- A bunch of brown paper bag bugs (MAINTAINERS list email, SMP build failure)
 - cpu_relax() now compiler barrier for UP as well
 - Handling of userspace Bus Errors for ARCompact builds
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Merge tag 'arc-4.4-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:
 "Found a couple of brown paper bag bugs with the prev pull request
  (including a SMP build breakage report from Guenter).  Since these are
  urgent I also decided to send over a bunch of other pending fixes
  which could have otherwise waited an rc or two.

  Summary:

   - A bunch of brown paper bag bugs (MAINTAINERS list email, SMP build
     failure)
   - cpu_relax() now compiler barrier for UP as well
   - handling of userspace Bus Errors for ARCompact builds"

* tag 'arc-4.4-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: Fix silly typo in MAINTAINERS file
  ARC: cpu_relax() to be compiler barrier even for UP
  ARC: use ASL assembler mnemonic
  ARC: [arcompact] Handle bus error from userspace as Interrupt not exception
  ARC: remove extraneous header include
  ARCv2: lib: memcpy: use local symbols
2015-11-14 09:09:37 -08:00
Vineet Gupta 30b9dbee89 ARC: Fix silly typo in MAINTAINERS file 2015-11-14 13:12:31 +05:30
Vineet Gupta 1cfc05cbe2 ARC: cpu_relax() to be compiler barrier even for UP
cpu_relax() on ARC has been barrier only for SMP (and no-op for UP). Per
recent discussions, it is safer to make it a compiler barrier
unconditionally.

Link: http://lkml.kernel.org/r/53A7D3AA.9020100@synopsys.com
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-11-14 13:12:30 +05:30
Vineet Gupta a6416f57ce ARC: use ASL assembler mnemonic
ARCompact and ARCv2 only have ASL, while binutils used to support LSL as
a alias mnemonic.

Newer binutils (upstream) don't want to do that so replace it.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-11-14 13:12:21 +05:30
Vineet Gupta 541366da6a ARC: [arcompact] Handle bus error from userspace as Interrupt not exception
Bus errors from userspace on ARCompact based cores are handled by core
as a high priority L2 interrupt but current code treated it as interrupt
Handling an interrupt like exception is certainly not going to go unnoticed.
(and it worked so far as we never saw a Bus error from userspace until
IPPK guys tested a DDR controller with ECC error detection etc hence
needed to explicitly trigger/handle such errors)

 - So move mem_service exception handler from common code into ARCv2 code.
 - In ARCompact code, define  mem_service as L2 interrupt handler which
   just drops down to pure kernel mode and goes of to enqueue SIGBUS

Reported-by: Nelson Pereira <npereira@synopsys.com>
Tested-by: Ana Martins <amartins@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-11-14 13:12:20 +05:30
Vineet Gupta 76a8c40c65 ARC: remove extraneous header include
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-11-14 13:11:38 +05:30
Linus Torvalds 63f4f7e8df platform/chrome: Branch for v4.4
Here's the branch of chrome platform changes for v4.4. Some have been queued
 up for the full 4.3 release cycle since I forgot to send them in for that
 round (rebased early on to deal with fixes conflicts).
 
 Most of these enable EC communication stuff -- Pixel 2015 support, enabling
 building for ARM64 platforms, and a few fixes for memory leaks.
 
 There's also a patch in here to allow reading/writing the verified boot
 context, which depends on a sysfs patch acked by Greg.
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Merge tag 'chrome-platform-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform

Pull chrome platform updates from Olof Johansson:
 "Here's the branch of chrome platform changes for v4.4.  Some have been
  queued up for the full 4.3 release cycle since I forgot to send them
  in for that round (rebased early on to deal with fixes conflicts).

  Most of these enable EC communication stuff -- Pixel 2015 support,
  enabling building for ARM64 platforms, and a few fixes for memory
  leaks.

  There's also a patch in here to allow reading/writing the verified
  boot context, which depends on a sysfs patch acked by Greg"

* tag 'chrome-platform-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/chrome-platform:
  platform/chrome: Fix i2c-designware adapter name
  platform/chrome: Support reading/writing the vboot context
  sysfs: Support is_visible() on binary attributes
  platform/chrome: cros_ec: Fix possible leak in led_rgb_store()
  platform/chrome: cros_ec: Fix leak in sequence_store()
  platform/chrome: Enable Chrome platforms on 64-bit ARM
  platform/chrome: cros_ec_dev - Add a platform device ID table
  platform/chrome: cros_ec_lpc - Add support for Google Pixel 2
  platform/chrome: cros_ec_lpc - Use existing function to check EC result
  platform/chrome: Make depends on MFD_CROS_EC instead CROS_EC_PROTO
  Revert "platform/chrome: Don't make CHROME_PLATFORMS depends on X86 || ARM"
2015-11-13 21:53:18 -08:00
Linus Torvalds 4bfc89d26a platform-drivers-x86 for 4.4-2
Support for the unfortunately rather unique ESC key on the Ideapad Yoga 3 and
 two DMI matches for rfkill support. Solitary fix for potential missed errors for
 asus-wmi. Downgrade a thinkpad_acpi message to info.
 
 asus-wmi:
  - fix error handling in store_sys_wmi()
 
 ideapad-laptop:
  - Add Lenovo Yoga 900 to no_hw_rfkill dmi list
  - include Yoga 3 1170 in add rfkill whitelist
  - add support for Yoga 3 ESC key
 
 thinkpad_acpi:
  - Don't yell on unsupported brightness interfaces
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Merge tag 'platform-drivers-x86-v4.4-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull another x86 platform driver update from Darren Hart:
 "Support for the unfortunately rather unique ESC key on the Ideapad
  Yoga 3 and two DMI matches for rfkill support.  Solitary fix for
  potential missed errors for asus-wmi.  Downgrade a thinkpad_acpi
  message to info.

  asus-wmi:
   - fix error handling in store_sys_wmi()

  ideapad-laptop:
   - Add Lenovo Yoga 900 to no_hw_rfkill dmi list
   - include Yoga 3 1170 in add rfkill whitelist
   - add support for Yoga 3 ESC key

  thinkpad_acpi:
   - Don't yell on unsupported brightness interfaces"

* tag 'platform-drivers-x86-v4.4-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
  asus-wmi: fix error handling in store_sys_wmi()
  ideapad-laptop: Add Lenovo Yoga 900 to no_hw_rfkill dmi list
  ideapad-laptop: include Yoga 3 1170 in add rfkill whitelist
  ideapad-laptop: add support for Yoga 3 ESC key
  thinkpad_acpi: Don't yell on unsupported brightness interfaces
2015-11-13 21:47:06 -08:00
Linus Torvalds a30b7ca289 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull more input updates from Dmitry Torokhov:
 "An update to the tsc2005 driver that allows it to also support tsc2004
  (basically the same controller, but uses i2c instead of spi bus), and
  a couple of bug fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: parkbd - drop bogus __init from parkbd_allocate_serio()
  Input: elantech - add Fujitsu Lifebook U745 to force crc_enabled
  Input: tsc2004 - add support for tsc2004
  Input: tsc200x-core - rename functions and variables
  Input: tsc2005 - separate SPI and core functions
2015-11-13 21:41:14 -08:00
Linus Torvalds d83763f4a6 SCSI misc on 20151113
Sorry for the delay in this patch which was mostly caused by getting the
 merger of the mpt2/mpt3sas driver, which was seen as an essential item of
 maintenance work to do before the drivers diverge too much.  Unfortunately,
 this caused a compile failure (detected by linux-next), which then had to be
 fixed up and incubated.  In addition to the mpt2/3sas rework, there are
 updates from pm80xx, lpfc, bnx2fc, hpsa, ipr, aacraid, megaraid_sas, storvsc
 and ufs plus an assortment of changes including some year 2038 issues, a fix
 for a remove before detach issue in some drivers and a couple of other minor
 issues.
 
 Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull final round of SCSI updates from James Bottomley:
 "Sorry for the delay in this patch which was mostly caused by getting
  the merger of the mpt2/mpt3sas driver, which was seen as an essential
  item of maintenance work to do before the drivers diverge too much.
  Unfortunately, this caused a compile failure (detected by linux-next),
  which then had to be fixed up and incubated.

  In addition to the mpt2/3sas rework, there are updates from pm80xx,
  lpfc, bnx2fc, hpsa, ipr, aacraid, megaraid_sas, storvsc and ufs plus
  an assortment of changes including some year 2038 issues, a fix for a
  remove before detach issue in some drivers and a couple of other minor
  issues"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (141 commits)
  mpt3sas: fix inline markers on non inline function declarations
  sd: Clear PS bit before Mode Select.
  ibmvscsi: set max_lun to 32
  ibmvscsi: display default value for max_id, max_lun and max_channel.
  mptfusion: don't allow negative bytes in kbuf_alloc_2_sgl()
  scsi: pmcraid: replace struct timeval with ktime_get_real_seconds()
  mvumi: 64bit value for seconds_since1970
  be2iscsi: Fix bogus WARN_ON length check
  scsi_scan: don't dump trace when scsi_prep_async_scan() is called twice
  mpt3sas: Bump mpt3sas driver version to 09.102.00.00
  mpt3sas: Single driver module which supports both SAS 2.0 & SAS 3.0 HBAs
  mpt2sas, mpt3sas: Update the driver versions
  mpt3sas: setpci reset kernel oops fix
  mpt3sas: Added OEM Gen2 PnP ID branding names
  mpt3sas: Refcount fw_events and fix unsafe list usage
  mpt3sas: Refcount sas_device objects and fix unsafe list usage
  mpt3sas: sysfs attribute to report Backup Rail Monitor Status
  mpt3sas: Ported WarpDrive product SSS6200 support
  mpt3sas: fix for driver fails EEH, recovery from injected pci bus error
  mpt3sas: Manage MSI-X vectors according to HBA device type
  ...
2015-11-13 20:35:54 -08:00
Linus Torvalds 9aa3d651a9 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
 "This series contains HCH's changes to absorb configfs attribute
  ->show() + ->store() function pointer usage from it's original
  tree-wide consumers, into common configfs code.

  It includes usb-gadget, target w/ drivers, netconsole and ocfs2
  changes to realize the improved simplicity, that now renders the
  original include/target/configfs_macros.h CPP magic for fabric drivers
  and others, unnecessary and obsolete.

  And with common code in place, new configfs attributes can be added
  easier than ever before.

  Note, there are further improvements in-flight from other folks for
  v4.5 code in configfs land, plus number of target fixes for post -rc1
  code"

In the meantime, a new user of the now-removed old configfs API came in
through the char/misc tree in commit 7bd1d4093c ("stm class: Introduce
an abstraction for System Trace Module devices").

This merge resolution comes from Alexander Shishkin, who updated his stm
class tracing abstraction to account for the removal of the old
show_attribute and store_attribute methods in commit 517982229f
("configfs: remove old API") from this pull.  As Alexander says about
that patch:

 "There's no need to keep an extra wrapper structure per item and the
  awkward show_attribute/store_attribute item ops are no longer needed.

  This patch converts policy code to the new api, all the while making
  the code quite a bit smaller and easier on the eyes.

  Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>"

That patch was folded into the merge so that the tree should be fully
bisectable.

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (23 commits)
  configfs: remove old API
  ocfs2/cluster: use per-attribute show and store methods
  ocfs2/cluster: move locking into attribute store methods
  netconsole: use per-attribute show and store methods
  target: use per-attribute show and store methods
  spear13xx_pcie_gadget: use per-attribute show and store methods
  dlm: use per-attribute show and store methods
  usb-gadget/f_serial: use per-attribute show and store methods
  usb-gadget/f_phonet: use per-attribute show and store methods
  usb-gadget/f_obex: use per-attribute show and store methods
  usb-gadget/f_uac2: use per-attribute show and store methods
  usb-gadget/f_uac1: use per-attribute show and store methods
  usb-gadget/f_mass_storage: use per-attribute show and store methods
  usb-gadget/f_sourcesink: use per-attribute show and store methods
  usb-gadget/f_printer: use per-attribute show and store methods
  usb-gadget/f_midi: use per-attribute show and store methods
  usb-gadget/f_loopback: use per-attribute show and store methods
  usb-gadget/ether: use per-attribute show and store methods
  usb-gadget/f_acm: use per-attribute show and store methods
  usb-gadget/f_hid: use per-attribute show and store methods
  ...
2015-11-13 20:04:17 -08:00
Linus Torvalds 5d2eb548b3 Merge branch 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs xattr cleanups from Al Viro.

* 'for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  f2fs: xattr simplifications
  squashfs: xattr simplifications
  9p: xattr simplifications
  xattr handlers: Pass handler to operations instead of flags
  jffs2: Add missing capability check for listing trusted xattrs
  hfsplus: Remove unused xattr handler list operations
  ubifs: Remove unused security xattr handler
  vfs: Fix the posix_acl_xattr_list return value
  vfs: Check attribute names in posix acl xattr handers
2015-11-13 18:02:30 -08:00
Linus Torvalds 2870f6c4d1 Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:

 - three fixes tagged for -stable including a crash fix, simple
   performance tweak, and an invalid i/o error.

 - build regression fix for the nvdimm unit tests

 - nvdimm documentation update

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  dax: fix __dax_pmd_fault crash
  libnvdimm: documentation clarifications
  libnvdimm, pmem: fix size trim in pmem_direct_access()
  libnvdimm, e820: fix numa node for e820-type-12 pmem ranges
  tools/testing/nvdimm, acpica: fix flag rename build breakage
2015-11-13 17:35:48 -08:00
Andreas Gruenbacher 29608d208b f2fs: xattr simplifications
Now that the xattr handler is passed to the xattr handler operations, we
have access to the attribute name prefix, so simplify
f2fs_xattr_generic_list.

Also, f2fs_xattr_advise_list is only ever called for
f2fs_xattr_advise_handler; there is no need to double check for that.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Changman Lee <cm224.lee@samsung.com>
Cc: Chao Yu <chao2.yu@samsung.com>
Cc: linux-f2fs-devel@lists.sourceforge.net
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-11-13 20:34:34 -05:00
Andreas Gruenbacher 0ddaf72c1d squashfs: xattr simplifications
Now that the xattr handler is passed to the xattr handler operations, we
have access to the attribute name prefix, so simplify the squashfs xattr
handlers a bit.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Phillip Lougher <phillip@squashfs.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-11-13 20:34:33 -05:00
Andreas Gruenbacher e409de992e 9p: xattr simplifications
Now that the xattr handler is passed to the xattr handler operations, we
can use the same get and set operations for the user, trusted, and security
xattr namespaces.  In those namespaces, we can access the full attribute
name by "reattaching" the name prefix the vfs has skipped for us.  Add a
xattr_full_name helper to make this obvious in the code.

For the "system.posix_acl_access" and "system.posix_acl_default"
attributes, handler->prefix is the full attribute name; the suffix is the
empty string.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Eric Van Hensbergen <ericvh@gmail.com>
Cc: Ron Minnich <rminnich@sandia.gov>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Cc: v9fs-developer@lists.sourceforge.net
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-11-13 20:34:33 -05:00
Andreas Gruenbacher d9a82a0403 xattr handlers: Pass handler to operations instead of flags
The xattr_handler operations are currently all passed a file system
specific flags value which the operations can use to disambiguate between
different handlers; some file systems use that to distinguish the xattr
namespace, for example.  In some oprations, it would be useful to also have
access to the handler prefix.  To allow that, pass a pointer to the handler
to operations instead of the flags value alone.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-11-13 20:34:32 -05:00
Andreas Gruenbacher bf781714b3 jffs2: Add missing capability check for listing trusted xattrs
The vfs checks if a task has the appropriate access for get and set
operations, but it cannot do that for the list operation; the file system
must check for that itself.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: linux-mtd@lists.infradead.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-11-13 20:34:30 -05:00