mirror of
https://github.com/RT-Thread/rt-thread.git
synced 2026-02-06 17:12:01 +08:00
743b614875
Some checks failed
RT-Thread BSP Static Build Check / 🔍 Summary of Git Diff Changes (push) Has been cancelled
RT-Thread BSP Static Build Check / ${{ matrix.legs.RTT_BSP }} (push) Has been cancelled
RT-Thread BSP Static Build Check / collect-artifacts (push) Has been cancelled
doc_doxygen / doxygen_doc generate (push) Has been cancelled
doc_doxygen / deploy (push) Has been cancelled
pkgs_test / change (push) Has been cancelled
utest_auto_run / A9 :components/dfs.cfg (push) Has been cancelled
utest_auto_run / A9 :components/lwip.cfg (push) Has been cancelled
utest_auto_run / A9 :components/netdev.cfg (push) Has been cancelled
utest_auto_run / A9 :components/sal.cfg (push) Has been cancelled
utest_auto_run / A9 :cpp11/cpp11.cfg (push) Has been cancelled
utest_auto_run / AARCH64-rtsmart :default.cfg (push) Has been cancelled
utest_auto_run / A9-rtsmart :default.cfg (push) Has been cancelled
utest_auto_run / RISCV-rtsmart :default.cfg (push) Has been cancelled
utest_auto_run / XUANTIE-rtsmart :default.cfg (push) Has been cancelled
utest_auto_run / AARCH64 :default.cfg (push) Has been cancelled
utest_auto_run / AARCH64-smp :default.cfg (push) Has been cancelled
utest_auto_run / A9 :default.cfg (push) Has been cancelled
utest_auto_run / A9-smp :default.cfg (push) Has been cancelled
utest_auto_run / RISCV :default.cfg (push) Has been cancelled
utest_auto_run / RISCV-smp :default.cfg (push) Has been cancelled
utest_auto_run / A9 :kernel/atomic_c11.cfg (push) Has been cancelled
utest_auto_run / RISCV :kernel/atomic_c11.cfg (push) Has been cancelled
utest_auto_run / A9 :kernel/ipc.cfg (push) Has been cancelled
utest_auto_run / A9 :kernel/kernel_basic.cfg (push) Has been cancelled
utest_auto_run / A9 :kernel/mem.cfg (push) Has been cancelled
ToolsCI / Tools (push) Has been cancelled
Weekly CI Scheduler / Trigger and Monitor CIs (push) Has been cancelled
Weekly CI Scheduler / Create Discussion Report (push) Has been cancelled
* [components][clock_time] Refactor time subsystem around clock_time Introduce the clock_time core with clock source/event separation, high-resolution scheduling, and boot-time helpers, plus clock_timer adapters for timer peripherals. Remove legacy ktime/cputime/hwtimer implementations and migrate arch and BSP time paths to the new subsystem while keeping POSIX time integration functional. Update drivers, Kconfig/SConscript wiring, documentation, and tests; add clock_time overview docs and align naming to clock_boottime/clock_hrtimer/clock_timer. * [components][clock_time] Use BSP-provided clock timer frequency on riscv64 * [risc-v] Use runtime clock timer frequency for tick and delays * [bsp] Add clock timer frequency hooks for riscv64 boards * [bsp] Update Renesas RA driver doc clock_timer link * [bsp] Sync zynqmp-r5-axu4ev rtconfig after config refresh * [bsp][rk3500] Update rk3500 clock configuration * [bsp][hpmicro] Add rt_hw_us_delay hook and update board delays * [bsp][stm32l496-st-nucleo] enable clock_time for hwtimer sample in ci * [bsp][hpmicro] Fix rtconfig include scope for hpm6750evk Move rtconfig.h include outside the ENET_MULTIPLE_PORT guard for hpm6750evk and hpm6750evk2 so configuration macros are available regardless of ENET settings. * [bsp][raspi3] select clock time for systimer * [bsp][hpm5300evk] Trim trailing blank line * [bsp][hpm5301evklite] Trim trailing blank line * [bsp][hpm5e00evk] Trim trailing blank line * [bsp][hpm6200evk] Trim trailing blank line * [bsp][hpm6300evk] Trim trailing blank line * [bsp][hpm6750evk] Trim trailing blank line * [bsp][hpm6750evk2] Trim trailing blank line * [bsp][hpm6750evkmini] Trim trailing blank line * [bsp][hpm6800evk] Trim trailing blank line * [bsp][hpm6e00evk] Trim trailing blank line * [bsp][nxp] switch lpc178x to gcc and remove mcx timer source * [bsp][stm32] fix the CONFIG_RT_USING_CLOCK_TIME issue. * [docs][clock_time] add clock time documentation * [docs][clock_time] Update clock time subsystem documentation - Update device driver index to use correct page reference - Clarify upper layer responsibilities in architecture overview - Update README to describe POSIX/libc, Soft RTC, and device driver usage - Refine architecture diagram with improved layout and color scheme - Remove obsolete clock_timer.md file * [kernel][utest] Trim trailing space * [clock_time] Fix hrtimer wrap handling * [clock_time] fix the static rt_inline issue * [clock_time] fix the rt_clock_hrtimer_control result issue
RT-Thread RV64支持
1.概述
该目录提供RT-Thread标准版及SMART版本对rv64体系结构支持，其中包括：
| 文件名 | 文件内容 | 参考标准 |
|---|---|---|
| atomic_rv64.c | 原子操作实现接口 | "A" Extension for Atomic Instructions, Version 2.1 |
| context_gcc.S | 线程上下文切换 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| cpuport_gcc.S | 线程统一入口 | |
| cpuport.c | 线程栈初始化 | |
| cpuport.h | 通用寄存器、浮点、向量寄存器个数定义，内存屏障接口 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| interrupt_gcc.S | 异常/中断处理、全局中断使能/关闭 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| io.h | 以字节、字、双字读、写IO地址接口 | |
| encoding.h | CSR寄存器定义 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| vector_encoding.h | vector相关指令定义 | RISC-V "V" Standard Extension for Vector Operations, Version 1.0 |
| ext_context.h | 浮点/向量上下文保存与恢复 | RISC-V "V" Standard Extension for Vector Operations, Version 1.0 "F" Extension for Single-Precision Floating-Point Version 2.2 |
| mmu.c | rv64 sv39 mmu管理接口 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| mmu.h | rv64 sv39 mmu页表相关定义 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| asid.c | rv64 mmu asid支持 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| riscv_mmu.c | 使能/关闭S态访问用户态页表 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| sbi.c | 通过ecall调用SBI相关信息接口 | RISC-V Supervisor Binary Interface Specification Version 1.0 |
| sbi.h | SBI spec相关接口定义 | RISC-V Supervisor Binary Interface Specification Version 1.0 |
| stack.h | 线程栈数据定义 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| stackframe.h | 线程上下文保存/恢复 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| syscall_c.c | 系统调用处理 | |
| tick.c | S态时钟初始化及中断处理 | |
| tlb.h | tlb刷新/无效接口 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
| trap.c | 异常/中断处理，包括中断分发及用户态异常处理 | The RISC-V Instruction Set Manual Volume II: privileged supervisor-level ISA version 1.12 |
2.运行模式配置
| 选项 | 默认值 | 说明 |
|---|---|---|
| RISCV_VIRT64_S_MODE | 打开 | 系统启动后是否运行在S态，关闭时系统将运行在M态；目前系统存在bug尚不可直接运行在M态，故此开关必须打开 |
| RT_USING_SMART | 关闭 | 是否开启RTThread SMART版本，开启后系统运行在S+U态，且会开启MMU页表(satp);关闭时系统仅运行在S态，MMU关闭(satp为bare translation) |
| ARCH_USING_ASID | 关闭 | MMU是否支持asid |
3.移植指南
（1）增加新的CPU支持
创建libcpu/risc-v/<VENDOR_NAME>/<CPU_NAME>新目录，同时在libcpu/risc-v/SConscript中增加该CPU。
（2）PLIC中断控制器支持
libcpu/risc-v/virt64/plic.[c|h]提供了符合《RISC-V Platform-Level Interrupt Controller Specification version 1.0.0 》标准的PLIC中断控制器驱动代码，可作为移植参考。
（3）串口uart支持
目前串口驱动在各bsp目录下，可参考bsp/qemu-virt64-riscv/driver/drv_uart.[c|h]