* [docs][libcpu][arm][cortex-a] add comment for mmu.h
* [docs][libcpu][arm][cortex-a] beautify comment for mmu.h
* [docs][libcpu][arm][cortex-a] delete extra space at the end of lines
1. PSCI port to system power.
2. Support builtin fdt.
3. Update system aspace size.
4. Support DMA memory probe.
5. Fixup not backtrace in Serror for device bus fault.
Signed-off-by: GuEe-GUI <2991707448@qq.com>
1.Add the necessary function declarations for SMP enablement and implement the corresponding
functionalities, including rt_hw_secondary_cpu_up, secondary_cpu_entry, rt_hw_local_irq_disable,
rt_hw_local_irq_enable, rt_hw_secondary_cpu_idle_exec, rt_hw_spin_lock_init, rt_hw_spin_lock,
rt_hw_spin_unlock, rt_hw_ipi_send, rt_hw_interrupt_set_priority, rt_hw_interrupt_get_priority,
rt_hw_ipi_init, rt_hw_ipi_handler_install, and rt_hw_ipi_handler.
2.In the two functions (rt_hw_context_switch_to and rt_hw_context_switch) in context_gcc.S,
add a call to rt_cpus_lock_status_restore to update the scheduler information.
3.If the MMU is enabled, use the .percpu section and record different hartids by configuring
special page tables; if the MMU is not enabled, record them directly in the satp register.
Additionally, add dynamic startup based on core configuration.The .percpu section is only used
when both ARCH_MM_MMU and RT_USING_SMP are enabled. However, there is a certain amount of space
waste since no macro guard is added for it in the link script currently.
4.The physical memory of QEMU started in CI is 128MB, so RT_HW_PAGE_END is modified from the
original +256MB to +128MB. Modify the SConscript file under the common64 directory to include
common/atomic_riscv.c in the compilation process.
Signed-off-by: Mengchen Teng <teng_mengchen@163.com>
The context_gcc.S file was incorrectly marked as cortex-m4 in both the
doxygen comment and .cpu directive, while the IAR and KEIL versions
correctly specify cortex-m33. This file uses ARMv8-M specific features
(PSPLIM register, TrustZone support) that are not available in Cortex-M4.
Changes:
- Update doxygen group from cortex-m4 to cortex-m33
- Change .cpu directive from cortex-m4 to cortex-m33
[cpp_check.py 80 INFO] bsp/w60x/drivers/drv_rtc.c:58:11: error: Syntax Error: AST broken, binary operator '&=' doesn't have two operands. [internalAstError]
[cpp_check.py 80 INFO] libcpu/arm/s3c24x0/rtc.c:34:12: error: Expression 'RTCCON|=RTCCON|=0x01' depends on order of evaluation of side effects [unknownEvaluationOrder]
The boot EL will save in x0, when current EL is EL3,
kernel will jump to the EL2 after EL3.
But the x0 value is **3**, The init for EL2 will not work.
To fix it: the EL3 should jump to the EL2 init branch with not check,
and when SoC boot in EL2, kernel will jump to the EL2 test branch.
Link: https://club.rt-thread.org/ask/question/ec320a6765389f67.html
Signed-off-by: wusongjie <wusongjie@rt-thread.com>
1. Configure the kernel default vaddr by RAM and TEXT offset.
2. Check the p_addr 2M align when set the stride in `rt_hw_mmu_map`.
Signed-off-by: GuEe-GUI <2991707448@qq.com>
libcpu/risc-v/common64/mmu.c uses the external
symbol "__bss_end" (this symbol generally is
defined in the link script file) and depends
on the extern declaration of this symbol in
the bsp's "board.h". This is not a problem in
implementation, but it is not a good habit.
If this extern symbol is used locally, just
declare it locally should be better.
In this way, there will be no dependency of
the kernel core on the bsp header file. And
there will be no special requirements for the
bsp board code, such as the need to make
extern declarations for these "__bss_end"
symbols in "board.h".
This patch currently only explicitly externly
declares "__bss_end" inside libcpu itself.
The code of "#include <board.h>" is kept, because
the modification involved is too large, it is
necessary to clean up the bsp involved before
cleaning this include code line uniformly.
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
* libcpu: cleanup undefined rt_hw_mmu_kernel_map_init
rt_hw_mmu_kernel_map_init() is declared in header files but
no definition found, cleanup the code.
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
* bsp: allwinner: d1: remove calling of rt_hw_mmu_kernel_map_init
rt_hw_mmu_kernel_map_init is an undefined function, calling it
is meaningless.
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
---------
Signed-off-by: Chen Wang <unicorn_wang@outlook.com>
