rt-thread.git/libcpu/risc-v/virt64, branch copilot/create-dfs2-documentation

fix(risc-v, virt64, plic): use volatile rw for claim and complete

2025-09-03T01:48:22Z

fix(risc-v/virt64, cpp): add spaces to fix `Wliteral-suffix`

2025-09-01T10:43:04Z

bsp: qemu-virt64-riscv: remove config RISCV_S_MODE

2025-01-10T09:14:13Z

RISCV_S_MODE configuration only affects the code in libcpu/risc-v/virt64, and the only bsp using this libcpu is qemu-virt64-riscv. Considering s-mode is the default mode RT-Thread running on virt64 machine, it seems unnecessary to make RISCV_S_MODE a Kconfig option. Solution: Remove RISCV_S_MODE from Kconfig and define it as a macro in the code in libcpu/risc-v/virt64. Plus, due to this macro is only related to virt64, rename RISCV_S_MODE to RISCV_VIRT64_S_MODE. Update the .config/rtconfig.h in this patch. Signed-off-by: Chen Wang

给vector模块添加构建脚本

2024-11-27T10:04:59Z

[libcpu][riscv]virt64使用通用vector支持代码

2024-11-27T10:04:59Z

feat: remove redundant codes under virt64, c906

2024-09-13T21:35:00Z

Changes: - create new folder name `common64` and save all common codes of rv64 inside Signed-off-by: Shell

feat: libcpu/risc-v: unify low-level bringups

2024-09-11T22:06:51Z

This patch consolidates the separated architecture-specific code for rv64 (virt64 and c906) under a more unified approach. The changes aim to enhance maintainability and code reuse, reducing duplication between these two architectures while adding small improvements in porting compatibility. Changes: - Modified build scripts (SConscript) for both virt64 and c906 to remove ASID and vector dependencies when not required. - Updated c906's sbi.c and sbi.h to use standard integer types (uint32_t) and include the missing header. - Unified inline function declaration for `sbi_call` across both c906 and virt64 using `rt_inline`. - Disabled FPU and vector in c906's startup assembly file, aligning it with the virt64 handling. - Corrected syscall handler type definitions in c906 for consistency. Signed-off-by: Shell

feat: libcpu/risc-v: unify interrupt & IO on rv64

2024-09-11T22:06:51Z

This patch aims to unify the two currently separated RISC-V 64-bit architecture ports, 'virt64' and 'c906', into a single generic 'common64' port. The changes include renaming files and updating includes to use a unified 'interrupt.h' header, as well as making adjustments to IO and trap handling to be more consistent between the two architectures. Changes: - Renamed 'rt_interrupt.h' to 'interrupt.h' and updated includes accordingly. - Unified IO register access functions in 'riscv_io.h'. - Added 'opcode.h' for portable assembly support. - Updated 'plic.c' and 'plic.h' to handle interrupts in a unified manner. - Modified 'trap.c' to handle exceptions and interrupts consistently for 'rv64'. Signed-off-by: Shell

feat: libcpu/risc-v: unify mmu related works

2024-09-11T22:06:51Z

These changes are designed to standardize the memory management across 'virt64' and 'c906', ensuring efficient handling of address spaces and page tables. Changes: - Creation of ASID management files (`asid.c`) for both 'c906' and 'virt64' architectures, which is essential for maintaining stability. - Extensive updates to the MMU configuration and handling in `mmu.c` and `mmu.h` files. - Addition of functions to manage ASID allocation and switching of page tables. - For c906, accommodated the early memory setup to the one from virt64. Signed-off-by: Shell

feat: libcpu/risc-v: unify context on c906, virt64

2024-09-11T22:06:51Z

Changes: - added config for NEW_CTX_SWITCH - used new context on c906 sched switch routine - update _rt_hw_stack_init to fit into NEW_CTX_SWITCH - separated vector ctx from the generic Signed-off-by: Shell