* [libcpu] support for ARCH_REMAP_KERNEL
These changes introduce support for the ARCH_REMAP_KERNEL configuration,
which isolates kernel space in high virtual address regions. This feature
is necessary to enhance memory protection and management by segregating
user and kernel spaces more effectively.
Changes:
- Updated conditional macros to check for ARCH_REMAP_KERNEL instead of
ARCH_KERNEL_IN_HIGH_VA in board initialization files to reflect the new
configuration option.
- Modified qemu-virt64-riscv Kconfig and SConstruct files to include and
utilize ARCH_REMAP_KERNEL.
- Created a new linker script `link_smart.lds` for smart linking in qemu-virt64-riscv.
- Updated rtconfig.py to use a more flexible execution path setup.
- Enhanced user address space definitions in `lwp_arch.h` to support the
new virtual address mappings.
- Adjusted kernel memory initialization and mapping logic in `c906/mmu.c`
and `virt64/mmu.c` to account for high virtual address regions.
- Added Kconfig option to enable ARCH_REMAP_KERNEL for RISCV64 architectures.
- Enhanced memory setup functions to support new mapping scheme, including
updates to early page table setup and address relocation logic.
These modifications ensure that the system can utilize high memory
addresses for the kernel, improving memory isolation and system stability.
Signed-off-by: Shell <smokewood@qq.com>
* fixup: CI run failed
* bsp: default config without using smart
* fixup: static checks
* restore rt_hw_mmu_kernel_map_init for D1
---------
Signed-off-by: Shell <smokewood@qq.com>
[feat] Enhance support for backtrace service
rt_backtrace_formatted_print() and rt_backtrace_to_buffer() to help
debug routines.
Also, following modification are included:
- make rt_backtrace_frame patchable with weak attr
- replace lwp backtrace with sync output
Signed-off-by: Shell <smokewood@qq.com>
* [smart] add CPU usage tracing config
This patch introduces following features:
- Added CPU usage tracing functionality, enabled by default, for
applications like 'top'
- update time as smart independent
Signed-off-by: Shell <smokewood@qq.com>
* fixup: add ump idle thread
---------
Signed-off-by: Shell <smokewood@qq.com>
* [ipc] lockless rt_completion implementation
The new rt_completion implemented by lockless algorithm can improve timer resolution for up to ~12%, compare to sem IPC.
Signed-off-by: Shell <smokewood@qq.com>
* fixup: error
* remove useless changes
---------
Signed-off-by: Shell <smokewood@qq.com>
* Synchronize the code of the rt mart branch to the master branch.
* TTY device
* Add lwP code from rt-smart
* Add vnode in DFS, but DFS will be re-write for rt-smart
* There are three libcpu for rt-smart:
* arm/cortex-a, arm/aarch64
* riscv64
Co-authored-by: Rbb666 <zhangbingru@rt-thread.com>
Co-authored-by: zhkag <zhkag@foxmail.com>
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