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Henrik Lindblom 24b4ce189f drivers: stm32: dma: fix external dcache support
Several drivers checked for the presense and availability of data cache
through Kconfig symbol. This is supported according to the current
documentation, but the symbol DCACHE masks two types of cache devices: arch
and external caches. The latter is present on some Cortex-M33 chips, like
the STM32U5xx. The external dcache is bypassed when accessing internal
SRAM and only used for external memories.

In commit a2dd232410 ("drivers: adc: stm32: dma support") the rationale
for gating dcache for adc_stm32 behind STM32H7X is only hinted at, but
reason seems to be that it was the only SOC the change was tested on. The
SOC configures DCACHE=y so it is most likely safe to swap the SOC gate for
DCACHE.

The DCACHE ifdefs are now hidden inside the shared stm32_buf_in_nocache()
implementation.

Signed-off-by: Henrik Lindblom <henrik.lindblom@vaisala.com>
2025-06-06 10:19:58 +02:00
.github Revert "ci: exclude rust temporarily [REVERT ME]" 2025-06-04 15:49:27 -04:00
arch arch: riscv: core: Fix type 2025-06-05 12:33:47 +02:00
boards build: Support SYSROOT_DIR in native_sim and clang 2025-06-06 10:11:49 +02:00
cmake build: Support SYSROOT_DIR in native_sim and clang 2025-06-06 10:11:49 +02:00
doc doc: extensions: kconfig: make location permalink optional 2025-06-05 15:12:07 -05:00
drivers drivers: stm32: dma: fix external dcache support 2025-06-06 10:19:58 +02:00
dts dts: arm: st: mp13: add dcmipp node in stm32mp135.dtsi 2025-06-06 10:10:58 +02:00
include/zephyr drivers: video: dcmipp: add functions for external ISP functions usage 2025-06-06 10:10:58 +02:00
kernel kernel: workq: introduce work timeout: 2025-06-06 08:42:53 +02:00
lib kernel: sys_heap: Fix chunk size request validation 2025-06-06 10:12:19 +02:00
misc license: Remove non-copyrightable license 2025-02-26 22:04:51 +00:00
modules cmake: add tfm / tfa image information to build info 2025-06-06 08:42:11 +02:00
samples samples: fs: typo in project name 2025-06-06 08:46:04 +02:00
scripts scripts: ci: add vermin (min python version check) 2025-06-06 08:45:13 +02:00
share sysbuild: Import image devicetrees 2025-05-22 13:44:18 +02:00
snippets drivers: video: sw_generator: convert to use the devicetree 2025-06-02 05:48:21 +02:00
soc drivers: stm32: dma: fix external dcache support 2025-06-06 10:19:58 +02:00
submanifests modules: optional: rust: Fixes for CI 2025-06-04 15:49:27 -04:00
subsys bluetooth: mesh: clarify mesh dfu fwid max length 2025-06-05 15:14:35 -05:00
tests drivers: video: introduction of the stm32 DCMIPP driver 2025-06-06 10:10:58 +02:00
.checkpatch.conf checkpatch: Adapt the braces check to Zephyr 2024-12-30 21:46:47 +01:00
.clang-format clang-format: add new line at EOF. 2025-04-11 22:07:26 +02:00
.codechecker.yml tests: Add a CodeChecker config file 2024-09-12 10:04:05 +02:00
.codecov.yml
.editorconfig
.gitattributes
.gitignore scripts: ci: add vermin (min python version check) 2025-06-06 08:45:13 +02:00
.gitlint gitlint: Fix dependabot exception 2025-04-09 09:02:39 +02:00
.mailmap mailmap: remove duplicate emails and normalize mapping entries 2025-01-09 14:14:10 +01:00
.ruff-excludes.toml scripts: west_commands: zspdx: writer: Fix linter issues 2025-06-02 20:22:51 +02:00
.ruff.toml scripts: Update and lock ruff 2024-12-03 23:30:00 +00:00
.yamllint
CMakeLists.txt cmake: Fix compilation options for kobject_hash*.c 2025-05-31 07:02:36 -04:00
CODE_OF_CONDUCT.md
CODEOWNERS ci: add empty CODEOWNERS file 2025-03-27 09:50:45 +01:00
CONTRIBUTING.rst
Kconfig
Kconfig.constants
Kconfig.zephyr tests/kernel: Disable -Werror when testing deprecated pipe APIs 2025-05-23 17:41:40 -04:00
LICENSE
MAINTAINERS.yml MAINTAINERS: move Debug: Profiling: Perf into Debug 2025-06-02 20:23:00 +02:00
README.rst doc: remove more occurances of Nios II 2025-05-15 20:01:05 -04:00
SDK_VERSION ci: use new docker image v0.28.0.20250523 2025-05-23 17:41:40 -04:00
VERSION VERSION: bump to 4.1.99 2025-03-07 17:36:15 +00:00
version.h.in version.h.in: fix cmake comment 2025-05-28 05:53:55 +02:00
west.yml modules: cmsis: fix: CI with CMSIS 2025-06-04 16:09:39 -04:00
zephyr-env.cmd
zephyr-env.sh

.. raw:: html

   <a href="https://www.zephyrproject.org">
     <p align="center">
       <picture>
         <source media="(prefers-color-scheme: dark)" srcset="doc/_static/images/logo-readme-dark.svg">
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       </picture>
     </p>
   </a>

   <a href="https://bestpractices.coreinfrastructure.org/projects/74"><img src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
   <a href="https://scorecard.dev/viewer/?uri=github.com/zephyrproject-rtos/zephyr"><img src="https://api.securityscorecards.dev/projects/github.com/zephyrproject-rtos/zephyr/badge"></a>
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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-A,
Cortex-R, Cortex-M), Intel x86, ARC, Tensilica Xtensa, and RISC-V,
SPARC, MIPS, 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:

Getting Started
---------------

  | 📖 `Zephyr Documentation`_
  | 🚀 `Getting Started Guide`_
  | 🙋🏽 `Tips when asking for help`_
  | 💻 `Code samples`_

Code and Development
--------------------

  | 🌐 `Source Code Repository`_
  | 📦 `Releases`_
  | 🤝 `Contribution Guide`_

Community and Support
---------------------

  | 💬 `Discord Server`_ for real-time community discussions
  | 📧 `User mailing list (users@lists.zephyrproject.org)`_
  | 📧 `Developer mailing list (devel@lists.zephyrproject.org)`_
  | 📬 `Other project mailing lists`_
  | 📚 `Project Wiki`_

Issue Tracking and Security
---------------------------

  | 🐛 `GitHub Issues`_
  | 🔒 `Security documentation`_
  | 🛡️ `Security Advisories Repository`_
  | ⚠️ Report security vulnerabilities at vulnerabilities@zephyrproject.org

Additional Resources
--------------------
  | 🌐 `Zephyr Project Website`_
  | 📺 `Zephyr Tech Talks`_

.. _Zephyr Project Website: https://www.zephyrproject.org
.. _Discord Server: https://chat.zephyrproject.org
.. _supported boards: https://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: https://docs.zephyrproject.org
.. _Introduction to Zephyr: https://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: https://docs.zephyrproject.org/latest/develop/getting_started/index.html
.. _Contribution Guide: https://docs.zephyrproject.org/latest/contribute/index.html
.. _Source Code Repository: https://github.com/zephyrproject-rtos/zephyr
.. _GitHub Issues: https://github.com/zephyrproject-rtos/zephyr/issues
.. _Releases: https://github.com/zephyrproject-rtos/zephyr/releases
.. _Project Wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _User mailing list (users@lists.zephyrproject.org): https://lists.zephyrproject.org/g/users
.. _Developer mailing list (devel@lists.zephyrproject.org): https://lists.zephyrproject.org/g/devel
.. _Other project mailing lists: https://lists.zephyrproject.org/g/main/subgroups
.. _Code samples: https://docs.zephyrproject.org/latest/samples/index.html
.. _Security documentation: https://docs.zephyrproject.org/latest/security/index.html
.. _Security Advisories Repository: https://github.com/zephyrproject-rtos/zephyr/security
.. _Tips when asking for help: https://docs.zephyrproject.org/latest/develop/getting_started/index.html#asking-for-help
.. _Zephyr Tech Talks: https://www.zephyrproject.org/tech-talks