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Jiafei Pan 799f37b421 arm64: add nocache memory segment support
In some drivers, noncache memory need to be used for dma coherent
memroy, so add nocache memory segment mapping and support for ARM64
platforms.

The following variables definition example shows they will use nocache
memory allocation:
   int var1 __nocache;
   int var2 __attribute__((__section__(".nocache")));

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
2021-10-20 08:56:40 -05:00
.buildkite ci: Bump to use SDK 0.13.1 2021-09-21 13:03:02 -04:00
.github templates: Create GitHub nomination template 2021-10-13 07:15:28 -04:00
arch arm64: add nocache memory segment support 2021-10-20 08:56:40 -05:00
boards drivers: adc: Refactor drivers to use shared init priority 2021-10-20 07:33:44 -04:00
cmake cmake: create zephyr_build_string 2021-10-14 13:22:14 +02:00
doc dts: rules for bindings 2021-10-20 07:21:39 -04:00
drivers drivers: adc: Refactor drivers to use shared init priority 2021-10-20 07:33:44 -04:00
dts dts: bindings: fix file names 2021-10-20 07:33:04 -04:00
include ARC: improve _ARCH_MEM_PARTITION_ALIGN_CHECK 2021-10-20 07:24:03 -04:00
kernel kernel: add support for event objects 2021-10-16 06:27:10 -04:00
lib lib/os/heap: option for optimizing for one heap size on 32-bit systems 2021-10-17 07:34:51 -04:00
misc toolchain: add GEN_ABSOLUTE_SYM_KCONFIG() 2021-02-02 09:23:45 -05:00
modules modules: Allow for Mbed TLS module to match upstream 2021-10-18 09:51:06 -05:00
samples samples: shell_module: fix build on 64bit platforms 2021-10-19 06:44:20 -04:00
scripts runners: openocd: always search the board support directory if found 2021-10-19 17:38:54 +02:00
share cmake: check zephyr version if specified and ZEPHYR_BASE is set 2021-05-25 16:48:35 -05:00
soc drivers: adc: Refactor drivers to use shared init priority 2021-10-20 07:33:44 -04:00
submanifests west.yml: allow users to easily add more modules 2021-10-07 13:45:42 +02:00
subsys logging: rtt: Fix compilation error when multithreading disable 2021-10-19 23:06:20 -04:00
tests tests: bluetooth: tester: Add support for L2CAP channels options 2021-10-18 12:44:46 +02:00
.checkpatch.conf checkpatch: Ignore IS_ENABLED_CONFIG warnings 2021-10-18 08:28:01 -04:00
.clang-format clang-format: Change lines length limit from 80 to 100 2021-05-06 08:13:32 -05:00
.codecov.yml ci: add .codecov.yml for codecov.io configuration 2018-01-03 13:12:03 -05:00
.editorconfig editorconfig: indent Kconfig files with tabs 2020-07-08 21:30:38 -04:00
.gitattributes gitattributes: consider SVG files generated 2021-10-14 12:42:44 -04:00
.gitignore gitignore: add common Python venv directories 2021-04-20 11:30:40 -05:00
.gitlint gitlint: match max title length restriction with checkpatch 2019-05-29 14:43:16 -04:00
.mailmap mailmap: update mailmap file with some stray emails 2021-06-17 14:15:41 -04:00
.uncrustify.cfg uncrustify: Add a rule to remove space inside function argument 2018-10-16 09:50:03 -04:00
CMakeLists.txt cmake: remove LINKER_PASS2 define 2021-10-11 10:21:53 +02:00
CODE_OF_CONDUCT.md coc: move to markdown format 2019-01-24 15:37:15 -05:00
CODEOWNERS dts: bindings: fix file names 2021-10-20 07:33:04 -04:00
CONTRIBUTING.rst doc: Fixed a link in CONTRIBUTING.rst 2019-02-28 12:46:04 -08:00
Kconfig kconfig: Clean up header comments and make them consistent 2019-11-04 17:31:27 -05:00
Kconfig.zephyr kconfig: add names to some choices 2021-09-28 19:56:32 -04:00
LICENSE add top level Apache 2.0 license file 2016-02-05 20:24:37 -05:00
MAINTAINERS.yml MAINTAINERS: Add myself and Flavio for Mbed TLS 2021-10-19 19:30:55 -04:00
README.rst doc: Document the switch from Slack to Discord 2021-09-03 08:11:15 -04:00
VERSION VERSION: bump main branch to 2.7.99 2021-09-30 06:36:53 -04:00
version.h.in cmake: explain BUILD_VERSION and KERNEL_VERSION_* 2019-05-09 11:52:05 +02:00
west.yml west.yml: Update mcumgr revision 2021-10-19 11:45:32 +02:00
zephyr-env.cmd scripts: remove west from scripts/ 2019-01-29 10:15:01 +01:00
zephyr-env.sh zephyr_env.sh: Remove semicolons at ends of lines 2019-12-10 14:34:46 -08:00

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <img src="doc/_static/images/logo-readme.png">
     </p>
   </a>

   <a href="https://bestpractices.coreinfrastructure.org/projects/74"><img
   src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
   <a href="https://buildkite.com/zephyr/zephyr">
   <img
   src="https://badge.buildkite.com/f5bd0dc88306cee17c9b38e78d11bb74a6291e3f40e7d13f31.svg?branch=main"></a>


The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM Cortex-M,
Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V, and a large number of
`supported boards`_.

.. below included in doc/introduction/introduction.rst


Getting Started
***************

Welcome to Zephyr! See the `Introduction to Zephyr`_ for a high-level overview,
and the documentation's `Getting Started Guide`_ to start developing.

.. start_include_here

Community Support
*****************

Community support is provided via mailing lists and Discord; see the Resources
below for details.

.. _project-resources:

Resources
*********

Here's a quick summary of resources to help you find your way around:

* **Help**: `Asking for Help Tips`_
* **Documentation**: http://docs.zephyrproject.org (`Getting Started Guide`_)
* **Source Code**: https://github.com/zephyrproject-rtos/zephyr is the main
  repository; https://elixir.bootlin.com/zephyr/latest/source contains a
  searchable index
* **Releases**: https://github.com/zephyrproject-rtos/zephyr/releases
* **Samples and example code**: see `Sample and Demo Code Examples`_
* **Mailing Lists**: users@lists.zephyrproject.org and
  devel@lists.zephyrproject.org are the main user and developer mailing lists,
  respectively. You can join the developer's list and search its archives at
  `Zephyr Development mailing list`_. The other `Zephyr mailing list
  subgroups`_ have their own archives and sign-up pages.
* **Nightly CI Build Status**: https://lists.zephyrproject.org/g/builds
  The builds@lists.zephyrproject.org mailing list archives the CI
  (buildkite) nightly build results.
* **Chat**: Real-time chat happens in Zephyr's Discord Server. Use
  this `Discord Invite`_ to register.
* **Contributing**: see the `Contribution Guide`_
* **Wiki**: `Zephyr GitHub wiki`_
* **Issues**: https://github.com/zephyrproject-rtos/zephyr/issues
* **Security Issues**: Email vulnerabilities@zephyrproject.org to report
  security issues; also see our `Security`_ documentation. Security issues are
  tracked separately at https://zephyrprojectsec.atlassian.net.
* **Zephyr Project Website**: https://zephyrproject.org

.. _Discord Invite: https://chat.zephyrproject.org
.. _supported boards: http://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: http://docs.zephyrproject.org
.. _Introduction to Zephyr: http://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: http://docs.zephyrproject.org/latest/getting_started/index.html
.. _Contribution Guide: http://docs.zephyrproject.org/latest/contribute/index.html
.. _Zephyr GitHub wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _Zephyr Development mailing list: https://lists.zephyrproject.org/g/devel
.. _Zephyr mailing list subgroups: https://lists.zephyrproject.org/g/main/subgroups
.. _Sample and Demo Code Examples: http://docs.zephyrproject.org/latest/samples/index.html
.. _Security: http://docs.zephyrproject.org/latest/security/index.html
.. _Asking for Help Tips: https://docs.zephyrproject.org/latest/getting_started/index.html#asking-for-help