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This patch improves the atomicity of context switching by ensuring that
the stack pointer (sp) and thread self updates occur simultaneously.
This enhancement is crucial for maintaining thread safety and
preventing potential inconsistencies during context switches.
Changes:
- Modified `cpuport.h` to use `ARM64_THREAD_REG` for thread self access.
- Added an `update_tidr` macro in `context_gcc.S` to streamline thread ID
updates.
- Adjusted `rt_hw_context_switch_to` and `rt_hw_context_switch` to call
`update_tidr`, ensuring atomic updates during context switches.
- Cleaned up `scheduler_mp.c` by removing redundant thread self
assignments.
Signed-off-by: Shell <[email protected]>
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[BSP/Phytium]适配最新驱动
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The rtdef.h is a big header with multiple dependency inside,
which makes it easier to introduce recursion dependency.
Signed-off-by: Shell <[email protected]>
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* [dfs] fixup compiler warning
Signed-off-by: Shell <[email protected]>
* [format] libcpu/arm64: separate context switching codes
Signed-off-by: Shell <[email protected]>
* [format] libcpu/arm64: separate vector
Signed-off-by: Shell <[email protected]>
* [format] libcpu/arm64: separate context_gcc.S
Signed-off-by: Shell <[email protected]>
* [format] libcpu/arm64: moving headers to include directory
Signed-off-by: Shell <[email protected]>
* style: replace tab with space
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Signed-off-by: Shell <[email protected]>
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