we can use g_cpu_lockset to determine whether we are currently in the scheduling lock,
and all accesses and modifications to g_cpu_lockset, g_cpu_irqlock, g_cpu_irqset
are in the critical section, so we can directly operate on it.
test:
We can use qemu for testing.
compiling
make distclean -j20; ./tools/configure.sh -l qemu-armv8a:nsh_smp ;make -j20
running
qemu-system-aarch64 -cpu cortex-a53 -smp 4 -nographic -machine virt,virtualization=on,gic-version=3 -net none -chardev stdio,id=con,mux=on -serial chardev:con -mon chardev=con,mode=readline -kernel ./nuttx
Signed-off-by: hujun5 <hujun5@xiaomi.com>
- In some cases, an operational Ethernet MAC may have no PHY, for example
when the system has a direct RMII MAC-to-MAC link.
- New config option STM32H7_NO_PHY
- With this option, PHY-specific code in the ethernet driver is not built
- This option is inherently incompatible with autonegotiation and speed and
duplex settings must be compiled in
To simplify processing, the existed SBI function code is just
invoking the ecall and return the error value. This omits
potential return value in "a1", which is defined in SBI doc.
Add the "sbiret" struct so it can handle all the return value.
In addition, there are some minor improvement:
1. move the SBI related interface to a separate file to make it clean.
2. add all necessary SBI ecall interface macro until version 2.0.
3. add an utilty function to convert sbi error numner to standard
error number.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
This revises `getregXX` and `setregXX` for rv64ilp32 to overcome
the limitation of compiler generated addresses and reach devices
in a larger range.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This PR adds support for Milk-V Duo S 64-bit RISC-V SBC, based on SOPHGO SG2000 SoC (T-Head C906 Core). Most of the code is derived from NuttX for Ox64 BL808. The source files are explained in the articles here: https://github.com/lupyuen/nuttx-sg2000
Modified Files:
`boards/Kconfig`: Added Milk-V Duo S board
`arch/risc-v/src/sg2000/sg2000_timerisr.c`: Fixed MTIMER_FREQ for sleep() to work correctly
New Files in boards/risc-v/sg2000/milkv_duos:
`src/sg2000_appinit.c`: Startup Code
`include/board.h`: Milk-V Duo S Definitions
`include/board_memorymap.h`: Memory Map
`src/etc/init.d/rc.sysinit`, `rcS`: Startup Script
`src/.gitignore`: Ignore the tmp filesystem
`scripts/ld.script`: Linker Script
`scripts/Make.defs`: Milk-V Duo S Makefile
`src/Makefile`: Milk-V Duo S Makefile
`Kconfig`: Milk-V Duo S Config
`configs/nsh/defconfig`: Build Config for `milkv_duos:nsh`
Updated Documentation:
`platforms/risc-v/sg2000/index.rst`: New page for SOPHGO SG2000 SoC
`platforms/risc-v/sg2000/boards/milkv_duos/index.rst`: Building and booting NuttX for Milk-V Duo S
When initialising the SJA1000 peripheral on some implementations
(SJA1000_FDTOL), "releasing" the buffer when the Rx buffer is empty
causes a buffer pointer misalignment.
On peripheral initialise, remove the flag to "release" the buffer.
This should be safe for all systems using the SJA1000 CAN controller
as a "reset" to the peripheral clears the Rx FIFO.
This PR adds support for the SOPHGO SG2000 SoC, based on T-Head C906 64-bit RISC-V Core. This will be used by the upcoming port of NuttX for Milk-V Duo S SBC.
Most of the code was derived from NuttX for Ox64 BL808. The source files are explained in the articles here: https://github.com/lupyuen/nuttx-sg2000
Modified Files in arch/risc-v:
`Kconfig`: Added ARCH_CHIP_SG2000 for SG2000 SoC
New Files in arch/risc-v:
`include/sg2000/chip.h`: SG2000 Definitions
`include/sg2000/irq.h`: External Interrupts
`src/sg2000/chip.h`: Interrupt Stack Macro
`src/sg2000/sg2000_allocateheap.c`: Kernel Heap
`src/sg2000/sg2000_head.S`: Linux Header and Boot Code
`src/sg2000/sg2000_irq.c`: Configure Interrupts
`src/sg2000/sg2000_irq_dispatch.c`: Dispatch Interrupts
`src/sg2000/sg2000_memorymap.h`: Memory Map
`src/sg2000/sg2000_mm_init.c`, `sg2000_mm_init.h`: Memory Mgmt
`src/sg2000/sg2000_pgalloc.c`: Page Allocator
`src/sg2000/sg2000_start.c`: Startup Code
`src/sg2000/sg2000_timerisr.c`: Timer Interrupt
`src/sg2000/hardware/sg2000_memorymap.h`: PLIC and UART Base Address
`src/sg2000/hardware/sg2000_plic.h`: PLIC Register Addresses
`src/sg2000/Kconfig`: SG2000 Config
`src/sg2000/Make.defs`: Makefile
If the CAN stack receiving packets fast, but the application layer reading packets slow. Then `conn->readahead` will continue to grow, leading to memory leaks. Finally CAN stack potentially starve out all IOB buffers. To prevent memory leaks, users can restrict can socket buffer length.
Signed-off-by: gaohedong <gaohedong@xiaomi.com>
As kernel mode is not necessary for S mode build, update related
information for the rv-virt board.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
There is no need to use kernel build for S-mode all the time. As cpu
scratch is supported for non kernel mode build, it is possible to use
flat build for S-mode.
Add flat build support for risc-v S mode.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
This applies uintreg_t in risc-v commons and fixes araised ci issues
for multiple devices. The FLAT build runs on qemu-rv64ilp32 target.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This adds support of rv64ilp32 toolchain available from Github repo
`ruyisdk/riscv-gnu-toolchain-rv64ilp32`. With this 32-bit nuttx can
be generated for RV64 devices.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
* arch/risc-v/src/common/Toolchain.defs
arch/xtensa/src/lx6/Toolchain.defs
arch/xtensa/src/lx7/Toolchain.defs
- Define SHMODULEFLAGS etc. for sotest/dynload
- Add --entry=__start to SHMODULEFLAGS
* boards/arm64/qemu/qemu-armv8a/scripts/Make.defs
boards/sim/sim/sim/scripts/Make.defs
- Define SHMODULEFLAGS etc. for sotest/dynload
/home/raiden00/git/RTOS/nuttx/nuttx/include/nuttx/timers/oneshot.h: In function 'oneshot_max_delay':
/home/raiden00/git/RTOS/nuttx/nuttx/include/nuttx/timers/oneshot.h:272:3: error: implicit declaration of function 'timespec_from_tick' [-Wimplicit-function-declaration]
272 | timespec_from_tick(ts, tick);
| ^~~~~~~~~~~~~~~~~~
/home/raiden00/git/RTOS/nuttx/nuttx/include/nuttx/timers/oneshot.h: In function 'oneshot_start':
/home/raiden00/git/RTOS/nuttx/nuttx/include/nuttx/timers/oneshot.h:285:10: error: implicit declaration of function 'timespec_to_tick'; did you mean 'timespec_get'? [-Wimplicit-function-declaration]
285 | tick = timespec_to_tick(ts);
| ^~~~~~~~~~~~~~~~
| timespec_get
