83f755b5d8
Introduce memory barriers according to ARMARM, section G.5.3 TLB maintenance operations and barriers Sequence for mapping memory in (both L1 and L2): * DSB * Invalidate i-cache (TODO) * Insert new entry in page directory / page table * DSB * ISB Sequence for mapping memory out: * Remove page table entry * DSB * Invalidate TLB entry * DSB * ISB Sequence for updating a page table entry: * Update page table entry * DSB * Invalidate TLB entry * Invalidate branch predictor (TODO) * DSB * ISB Note: i-cache invalidation and branch predictor invalidation is not implemented yet as this commit focuses on implementing memory barriers. Change-Id: I192fa80f6b43117236a4be6fa8c988afca90e015 Reviewed-on: https://review.haiku-os.org/c/haiku/+/5241 Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org> Reviewed-by: Fredrik Holmqvist <fredrik.holmqvist@gmail.com>
Haiku
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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.
Goals
- Sensible defaults with minimal configuration required.
- Clean, clear, concise code.
- Unified desktop environment.
Trying Haiku
Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.
Compiling Haiku
See ReadMe.Compiling.
Contributing
Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!
Contributing code
If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.
If you're having trouble finding something in the source tree, you can use one of our web-based source code browsers:
- https://xref.landonf.org/ (OpenGrok, provided by Landon Fuller)
- https://git.haiku-os.org/ (git, provided by Haiku, Inc.)
Contributing documentation
The main piece of documentation that still needs work are the API docs (found
in the tree at docs/user). Just find an undocumented class, write
documentation for it, and submit a patch.
Contributing translations
See wiki:i18n.
Contributing software ports
See HaikuPorts.
Contributing to our infrastructure
See Infrastructure.