rt-thread.git/libcpu/risc-v/common64, branch v5.2.1

[libcpu][risc-v]:add comment for the round down of symb_pc

2025-05-30T06:06:28Z

[libcpu][risc-v] fix:only map the 1GB space where the original code segment is located

2025-05-30T06:06:27Z

libcpu: riscv: declare external symbols inside

2025-04-11T06:15:12Z

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 " 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

libcpu: cleanup undefined rt_hw_mmu_kernel_map_init (#10177)

2025-04-10T23:54:21Z

* 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 * 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 --------- Signed-off-by: Chen Wang

[libcpu][risc-v]add code for handling exception scenarios in _unmap_area.

2025-03-17T09:40:55Z

[libcpu][risc-v]remove unused parameter 'size' for func _unmap_area.

2025-03-17T09:40:55Z

Signed-off-by: ligr

[libcpu][risc-v]add comments for rt_hw_mem_setup_early. (#10102)

2025-03-12T01:40:46Z

[libcpu][risc-v]add comments for rv64 sv39 mmu APIs. (#10053)

2025-03-01T16:03:13Z

[bugfix][risc-v]fix the PPN length error in GET_PPN(pte). (#10020)

2025-02-28T00:23:46Z

libcpu: riscv: fixed ARCH_RISCV_VECTOR issue

2025-02-22T19:17:54Z

description: Using the vector instruction set to trigger an illegal instruction exception when ARCH_SISCV_VECTOR=y. analysis: When initializing the thread stack, the rt_cw_stack_init function did not enable VS for SSTATUS. Solution: When ARCH_SISCV_VECTOR=y, increment the initial value of sstatus by 0x600(SSTATUS_VS). Signed-off-by: Liu Gui