kernel/linux.git/Documentation/arch/arm64/memory.rst, branch linux-7.0.y

Documentation: arm64: Remove stale and redundant virtual memory diagrams

2025-01-13T16:40:30+00:00

The arm64 'memory.rst' file tries to document the virtual memory map and the translation procedure for a couple of kernel configurations. Unfortunately, the virtual memory map changes relatively frequently and we support considerably more configurations than we did when the docs were introduced (e.g. we now have support for 16KiB pages and 52-bit addressing). Furthermore, the Arm ARM is the definitive resource for the translation procedure and so there's little point in duplicating part of that information in the kernel documentation. Rather than continue trying (and failing) to maintain these diagrams, let's rip them out. The kernel page-table can be dumped using CONFIG_PTDUMP_DEBUGFS if necesssary. Link: https://lore.kernel.org/r/20250102065554.1533781-1-sangmoon.kim@samsung.com Reported-by: Sangmoon Kim Signed-off-by: Will Deacon

Documentation: arm64: Update memory.rst for TBI

2024-07-04T14:10:31+00:00

Most of memory.rst was written very early, at a time where TBI (Top Byte Ignore) was not enabled. Nowadays TBI0 is always enabled, and TBI1 may be enabled, depending on the kernel configuration. This means that VA bits 63:56 cannot generally be assumed to have any particular value. Regardless of TBI, TTBRx selection is done based on bit 55; update memory.rst accordingly. Signed-off-by: Kevin Brodsky Acked-by: Mark Rutland Link: https://lore.kernel.org/r/20240702091349.356008-1-kevin.brodsky@arm.com Signed-off-by: Catalin Marinas

Merge tag 'docs-arm64-move' of git://git.lwn.net/linux

2023-06-28T04:52:15+00:00

Pull arm64 documentation move from Jonathan Corbet: "Move the arm64 architecture documentation under Documentation/arch/. This brings some order to the documentation directory, declutters the top-level directory, and makes the documentation organization more closely match that of the source" * tag 'docs-arm64-move' of git://git.lwn.net/linux: perf arm-spe: Fix a dangling Documentation/arm64 reference mm: Fix a dangling Documentation/arm64 reference arm64: Fix dangling references to Documentation/arm64 dt-bindings: fix dangling Documentation/arm64 reference docs: arm64: Move arm64 documentation under Documentation/arch/

docs: arm64: Move arm64 documentation under Documentation/arch/

2023-06-21T14:51:51+00:00

Architecture-specific documentation is being moved into Documentation/arch/ as a way of cleaning up the top-level documentation directory and making the docs hierarchy more closely match the source hierarchy. Move Documentation/arm64 into arch/ (along with the Chinese equvalent translations) and fix up documentation references. Cc: Will Deacon Cc: Alex Shi Cc: Hu Haowen Cc: Paolo Bonzini Acked-by: Catalin Marinas Reviewed-by: Yantengsi Signed-off-by: Jonathan Corbet