user/sven/linux.git/Documentation/arm, branch v4.9.293

ARM: 8833/1: Ensure that NEON code always compiles with Clang

2019-04-05T20:29:11Z

[ Upstream commit de9c0d49d85dc563549972edc5589d195cd5e859 ] 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: Ard Biesheuvel Signed-off-by: Nathan Chancellor Acked-by: Nicolas Pitre Reviewed-by: Nick Desaulniers Reviewed-by: Stefan Agner Signed-off-by: Russell King Signed-off-by: Sasha Levin

Merge tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2016-10-14T22:17:12Z

Pull kselftest updates from Shuah Khan: "This update consists of: - Fixes and improvements to existing tests - Moving code from Documentation to selftests, samples, and tools: * Moves dnotify_test, prctl, ptp, vDSO, ia64, watchdog, and networking tests from Documentation to selftests. * Moves mic/mpssd, misc-devices/mei, timers, watchdog, auxdisplay, and blackfin examples from Documentation to samples. * Moves accounting, laptops/dslm, and pcmcia/crc32hash tools from Documentation to tools. * Deletes BUILD_DOCSRC and its dependencies" * tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (21 commits) selftests/futex: Check ANSI terminal color support Doc: update 00-INDEX files to reflect the runnable code move samples: move blackfin gptimers-example from Documentation tools: move pcmcia crc32hash tool from Documentation tools: move laptops dslm tool from Documentation tools: move accounting tool from Documentation samples: move auxdisplay example code from Documentation samples: move watchdog example code from Documentation samples: move timers example code from Documentation samples: move misc-devices/mei example code from Documentation samples: move mic/mpssd example code from Documentation selftests: Move networking/timestamping from Documentation selftests: move watchdog tests from Documentation/watchdog selftests: move ia64 tests from Documentation/ia64 selftests: move vDSO tests from Documentation/vDSO selftests: move ptp tests from Documentation/ptp selftests: move prctl tests from Documentation/prctl selftests: move dnotify_test from Documentation/filesystems selftests/timers: Add missing error code assignment before test selftests/zram: replace ZRAM_LZ4_COMPRESS ...

Doc: update 00-INDEX files to reflect the runnable code move

2016-10-10T13:12:09Z

Update 00-INDEX files with the current file list to reflect the runnable code move. Acked-by: Michal Marek Acked-by: Jonathan Corbet Reviewed-by: Kees Cook Signed-off-by: Shuah Khan

Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2016-10-08T04:18:42Z

Pull ARM SoC platform updates from Arnd Bergmann: "These are updates for platform specific code on 32-bit ARM machines, essentially anything that can not (yet) be expressed using DT files. Noteworthy changes include: - We get support for running in big-endian mode on two platforms: sunxi (Allwinner) and s3c24xx (old Samsung). - The recently added Uniphier platform now uses standard PSCI methods for SMP booting and we remove support for old bootloader versions that did not support it yet. - In sunxi, we gain support for the "Nextthing GR8" SoC, which is a close relative of the Allwinner A13 and R8 chips. - PXA completes its move over to the generic dmaengine framework and removes its old private API - mach-bcm gains support for BCM47189/BCM53573, their first ARM SoC with integrated 802.11ac wireless networking" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (54 commits) ARM: imx legacy: pca100: move peripheral initialization to .init_late ARM: imx legacy: mx27ads: move peripheral initialization to .init_late ARM: imx legacy: mx21ads: move peripheral initialization to .init_late ARM: imx legacy: pcm043: move peripheral initialization to .init_late ARM: imx legacy: mx35-3ds: move peripheral initialization to .init_late ARM: imx legacy: mx27-3ds: move peripheral initialization to .init_late ARM: imx legacy: imx27-visstrim-m10: move peripheral initialization to .init_late ARM: imx legacy: vpr200: move peripheral initialization to .init_late ARM: imx legacy: mx31moboard: move peripheral initialization to .init_late ARM: imx legacy: armadillo5x0: move peripheral initialization to .init_late ARM: imx legacy: qong: move peripheral initialization to .init_late ARM: imx legacy: mx31-3ds: move peripheral initialization to .init_late ARM: imx legacy: pcm037: move peripheral initialization to .init_late ARM: imx legacy: mx31lilly: move peripheral initialization to .init_late ARM: imx legacy: mx31ads: move peripheral initialization to .init_late ARM: imx legacy: mx31lite: move peripheral initialization to .init_late ARM: imx legacy: kzm: move peripheral initialization to .init_late MAINTAINERS: update list of Oxnas maintainers ARM: orion5x: remove extraneous NO_IRQ ARM: orion: simplify orion_ge00_switch_init ...

Merge tag 'docs-4.9' of git://git.lwn.net/linux

2016-10-04T20:54:07Z

Pull documentation updates from Jonathan Corbet: "This is the documentation update pull for the 4.9 merge window. The Sphinx transition is still creating a fair amount of work. Here we have a number of fixes and, importantly, a proper PDF output solution, thanks to Jani Nikula, Mauro Carvalho Chehab and Markus Heiser. I've started a couple of new books: a driver API book (based on the old device-drivers.tmpl) and a development tools book. Both are meant to show how we can integrate together our existing documentation into a more coherent and accessible whole. It involves moving some stuff around and formatting changes, but, I think, the results are worth it. The good news is that most of our existing Documentation/*.txt files are *almost* in RST format already; the amount of messing around required is minimal. And, of course, there's the usual set of updates, typo fixes, and more" * tag 'docs-4.9' of git://git.lwn.net/linux: (120 commits) URL changed for Linux Foundation TAB dax : Fix documentation with respect to struct pages iio: Documentation: Correct the path used to create triggers. docs: Remove space-before-label guidance from CodingStyle docs-rst: add inter-document cross references Documentation/email-clients.txt: convert it to ReST markup Documentation/kernel-docs.txt: reorder based on timestamp Documentation/kernel-docs.txt: Add dates for online docs Documentation/kernel-docs.txt: get rid of broken docs Documentation/kernel-docs.txt: move in-kernel docs Documentation/kernel-docs.txt: remove more legacy references Documentation/kernel-docs.txt: add two published books Documentation/kernel-docs.txt: sort books per publication date Documentation/kernel-docs.txt: adjust LDD references Documentation/kernel-docs.txt: some improvements on the ReST output Documentation/kernel-docs.txt: Consistent indenting: 4 spaces Documentation/kernel-docs.txt: Add 4 paper/book references Documentation/kernel-docs.txt: Improve layouting of book list Documentation/kernel-docs.txt: Remove offline or outdated entries docs: Clean up bare :: lines ...

ARM: sunxi: Support the Nextthing GR8

2016-09-08T12:32:23Z

The GR8 is an SoC made by Nextthing Co, loosely based on the sun5i family. It has a number of new controllers compared to the A10s and A13 (SPDIF, I2S), but some controllers missing too (Ethernet, less I2C, less UARTs). Signed-off-by: Maxime Ripard Acked-by: Chen-Yu Tsai Signed-off-by: Maxime Ripard

Documentation: sunxi: Update Allwinner SoC documentation

2016-08-18T17:23:47Z

Now, the A83T and A64 SoC user manuals are available. Update the documentation to add the links. An updated version of A83T datasheet is also included now. Signed-off-by: Icenowy Zheng Acked-by: Chen-Yu Tsai Signed-off-by: Jonathan Corbet

bus: arm-ccn: Correct required arguments for XP PMU events

2016-08-17T10:42:40Z

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: Pawel Moll

ARM: at91: Documentation: update the sama5d2 entry

2016-06-21T15:09:34Z

Update the Atmel SoC entry for SAMA5D2 with all the product variants. Add the datasheet web link, now that it's available, for instant access to full product documentation. Signed-off-by: Nicolas Ferre Signed-off-by: Alexandre Belloni

Documentation: fix common spelling mistakes

2016-04-28T13:51:59Z

This fixes several spelling mistakes in the Documentation/ tree, which are caught by checkpatch.pl's spell checking. Signed-off-by: Kees Cook Reviewed-by: Paul E. McKenney Acked-by: Randy Dunlap Signed-off-by: Jonathan Corbet