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  1. Jul 15, 2019
  3. Jun 08, 2019
    • Mauro Carvalho Chehab's avatar
      docs: mark orphan documents as such · 27c054d2
      Mauro Carvalho Chehab authored 
      
Sphinx doesn't like orphan documents:

    Documentation/accelerators/ocxl.rst: WARNING: document isn't included in any toctree
    Documentation/arm/stm32/overview.rst: WARNING: document isn't included in any toctree
    Documentation/arm/stm32/stm32f429-overview.rst: WARNING: document isn't included in any toctree
    Documentation/arm/stm32/stm32f746-overview.rst: WARNING: document isn't included in any toctree
    Documentation/arm/stm32/stm32f769-overview.rst: WARNING: document isn't included in any toctree
    Documentation/arm/stm32/stm32h743-overview.rst: WARNING: document isn't included in any toctree
    Documentation/arm/stm32/stm32mp157-overview.rst: WARNING: document isn't included in any toctree
    Documentation/gpu/msm-crash-dump.rst: WARNING: document isn't included in any toctree
    Documentation/interconnect/interconnect.rst: WARNING: document isn't included in any toctree
    Documentation/laptops/lg-laptop.rst: WARNING: document isn't included in any toctree
    Documentation/powerpc/isa-versions.rst: WARNING: document isn't included in any toctree
    Documentation/virtual/kvm/amd-memory-encryption.rst: WARNING: document isn't included in any toctree
    Documentation/virtual/kvm/vcpu-requests.rst: WARNING: document isn't included in any toctree

So, while they aren't on any toctree, add :orphan: to them, in order
to silent this warning.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: default avatarAndrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
      27c054d2
  5. Jun 07, 2019
  7. Feb 12, 2019
    • Nathan Chancellor's avatar
      ARM: 8833/1: Ensure that NEON code always compiles with Clang · de9c0d49
      Nathan Chancellor authored 
      While building arm32 allyesconfig, I ran into the following errors:

  arch/arm/lib/xor-neon.c:17:2: error: You should compile this file with
  '-mfloat-abi=softfp -mfpu=neon'

  In file included from lib/raid6/neon1.c:27:
  /home/nathan/cbl/prebuilt/lib/clang/8.0.0/include/arm_neon.h:28:2:
  error: "NEON support not enabled"

Building V=1 showed NEON_FLAGS getting passed along to Clang but
__ARM_NEON__ was not getting defined. Ultimately, it boils down to Clang
only defining __ARM_NEON__ when targeting armv7, rather than armv6k,
which is the '-march' value for allyesconfig.

>From lib/Basic/Targets/ARM.cpp in the Clang source:

  // This only gets set when Neon instructions are actually available, unlike
  // the VFP define, hence the soft float and arch check. This is subtly
  // different from gcc, we follow the intent which was that it should be set
  // when Neon instructions are actually available.
  if ((FPU & NeonFPU) && !SoftFloat && ArchVersion >= 7) {
    Builder.defineMacro("__ARM_NEON", "1");
    Builder.defineMacro("__ARM_NEON__");
    // current AArch32 NEON implementations do not support double-precision
    // floating-point even when it is present in VFP.
    Builder.defineMacro("__ARM_NEON_FP",
                        "0x" + Twine::utohexstr(HW_FP & ~HW_FP_DP));
  }

Ard Biesheuvel recommended explicitly adding '-march=armv7-a' at the
beginning of the NEON_FLAGS definitions so that __ARM_NEON__ always gets
definined by Clang. This doesn't functionally change anything because
that code will only run where NEON is supported, which is implicitly
armv7.

Link: https://github.com/ClangBuiltLinux/linux/issues/287



Suggested-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: default avatarNathan Chancellor <natechancellor@gmail.com>
Acked-by: default avatarNicolas Pitre <nico@linaro.org>
Reviewed-by: default avatarNick Desaulniers <ndesaulniers@google.com>
Reviewed-by: default avatarStefan Agner <stefan@agner.ch>
Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
      de9c0d49
  9. Nov 20, 2018
    • Will Deacon's avatar
      Documentation: Use "while" instead of "whilst" · 806654a9
      Will Deacon authored 
      
Whilst making an unrelated change to some Documentation, Linus sayeth:

  | Afaik, even in Britain, "whilst" is unusual and considered more
  | formal, and "while" is the common word.
  |
  | [...]
  |
  | Can we just admit that we work with computers, and we don't need to
  | use þe eald Englisc spelling of words that most of the world never
  | uses?

dictionary.com refers to the word as "Chiefly British", which is
probably an undesirable attribute for technical documentation.

Replace all occurrences under Documentation/ with "while".

Cc: David Howells <dhowells@redhat.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michael Halcrow <mhalcrow@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Reported-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
      806654a9
  11. Sep 09, 2018
    • Henrik Austad's avatar
      Drop all 00-INDEX files from Documentation/ · a7ddcea5
      Henrik Austad authored 
      
This is a respin with a wider audience (all that get_maintainer returned)
and I know this spams a *lot* of people. Not sure what would be the correct
way, so my apologies for ruining your inbox.

The 00-INDEX files are supposed to give a summary of all files present
in a directory, but these files are horribly out of date and their
usefulness is brought into question. Often a simple "ls" would reveal
the same information as the filenames are generally quite descriptive as
a short introduction to what the file covers (it should not surprise
anyone what Documentation/sched/sched-design-CFS.txt covers)

A few years back it was mentioned that these files were no longer really
needed, and they have since then grown further out of date, so perhaps
it is time to just throw them out.

A short status yields the following _outdated_ 00-INDEX files, first
counter is files listed in 00-INDEX but missing in the directory, last
is files present but not listed in 00-INDEX.

List of outdated 00-INDEX:
Documentation: (4/10)
Documentation/sysctl: (0/1)
Documentation/timers: (1/0)
Documentation/blockdev: (3/1)
Documentation/w1/slaves: (0/1)
Documentation/locking: (0/1)
Documentation/devicetree: (0/5)
Documentation/power: (1/1)
Documentation/powerpc: (0/5)
Documentation/arm: (1/0)
Documentation/x86: (0/9)
Documentation/x86/x86_64: (1/1)
Documentation/scsi: (4/4)
Documentation/filesystems: (2/9)
Documentation/filesystems/nfs: (0/2)
Documentation/cgroup-v1: (0/2)
Documentation/kbuild: (0/4)
Documentation/spi: (1/0)
Documentation/virtual/kvm: (1/0)
Documentation/scheduler: (0/2)
Documentation/fb: (0/1)
Documentation/block: (0/1)
Documentation/networking: (6/37)
Documentation/vm: (1/3)

Then there are 364 subdirectories in Documentation/ with several files that
are missing 00-INDEX alltogether (and another 120 with a single file and no
00-INDEX).

I don't really have an opinion to whether or not we /should/ have 00-INDEX,
but the above 00-INDEX should either be removed or be kept up to date. If
we should keep the files, I can try to keep them updated, but I rather not
if we just want to delete them anyway.

As a starting point, remove all index-files and references to 00-INDEX and
see where the discussion is going.

Signed-off-by: default avatarHenrik Austad <henrik@austad.us>
Acked-by: default avatar"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Just-do-it-by: default avatarSteven Rostedt <rostedt@goodmis.org>
Reviewed-by: default avatarJens Axboe <axboe@kernel.dk>
Acked-by: default avatarPaul Moore <paul@paul-moore.com>
Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: default avatarMark Brown <broonie@kernel.org>
Acked-by: default avatarMike Rapoport <rppt@linux.vnet.ibm.com>
Cc: [Almost everybody else]
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
      a7ddcea5
  13. Aug 30, 2018
    • Krzysztof Kozlowski's avatar
      ARM: exynos: Fix imprecise abort during Exynos5422 suspend to RAM · e0b35c1a
      Krzysztof Kozlowski authored 
      
Suspend to RAM on Odroid XU3/XU4/HC1 family (Exynos5422) causes
imprecise abort:

	PM: Syncing filesystems ... done.
	Freezing user space processes ... (elapsed 0.003 seconds) done.
	OOM killer disabled.
	Freezing remaining freezable tasks ... (elapsed 0.003 seconds) done.
	wake enabled for irq 139
	Disabling non-boot CPUs ...
	IRQ51 no longer affine to CPU1
	IRQ52 no longer affine to CPU2
	IRQ53 no longer affine to CPU3
	IRQ54 no longer affine to CPU4
	IRQ55 no longer affine to CPU5
	IRQ56 no longer affine to CPU6
	cpu cpu4: Dropping the link to regulator.40
	IRQ57 no longer affine to CPU7
	Unhandled fault: external abort on non-linefetch (0x1008) at 0xf081a028
	Internal error: : 1008 [#1] PREEMPT SMP ARM

with last call trace in exynos_suspend_enter().

The abort is caused by writing to register in secure part of sysram.
Boards booted under secure firmware (e.g. Hardkernel Odroid boards)
should access non-secure sysram.

Signed-off-by: default avatarKrzysztof Kozlowski <krzk@kernel.org>
      e0b35c1a
  15. May 16, 2018
  17. May 03, 2018
  19. Mar 06, 2018
  21. Mar 05, 2018
  23. Feb 28, 2018
  25. Feb 16, 2018
  27. Sep 22, 2017
  29. Jul 17, 2017
  31. Jun 02, 2017
  33. Apr 20, 2017
  35. Mar 24, 2017
  37. Jan 20, 2017
  39. Jan 02, 2017
  41. Nov 15, 2016
  43. Oct 24, 2016
  45. Oct 10, 2016
  47. Sep 08, 2016
  49. Aug 18, 2016
  51. Aug 17, 2016
    • Pawel Moll's avatar
      bus: arm-ccn: Correct required arguments for XP PMU events · 90d11e26
      Pawel Moll authored 
      
XP can provide events from two sources: watchpoints, observing traffic
on device ports and PMU looking at internal buses.

Unfortunately the sysfs definition of the PMU events was requiring
port number (instead of bus number) and direction (the buses are
unidirectional), as these fields were shared with the watchpoint event.

Although it does not introduce a major problem (port can be used as
bus alias and direction is simply ignored for XP PMU events), it's
better to fix it now, before external tools start depending on this
behaviour.

Signed-off-by: default avatarPawel Moll <pawel.moll@arm.com>
      90d11e26
  53. Jun 21, 2016
  55. Apr 28, 2016
  57. Feb 19, 2016
  59. Feb 17, 2016