This commit fixes a deadlock in `esp32s3-devkit:sta_softap`
defconfig: `spin_lock_irqsave` was being used to enter a critical
section that calls `nxsem_post`. In this case, it's recommended
to use `[enter|leave]_critical_section` to avoid deadlocks when a
context switch may happen, for instance.
Some USB controllers can receive or send multiple data packets then
generate one interrupt. This mechanism can reduce the number of data
copies. Extend req buf to accommodate this.
Signed-off-by: yangsong8 <yangsong8@xiaomi.com>
This PR configures the BL808 MMU to cache the the User Text, Data and Heap. We enable the T-Head MMU Flags for Shareable, Bufferable and Cacheable, as explained in the previous PR: https://github.com/apache/nuttx/pull/13199
This PR fixes the Slow Memory Access for NuttX Apps on Ox64 BL808 SBC: https://github.com/apache/nuttx/issues/12696. With this fix, Ox64 NuttX CoreMark jumps from 19 to 1,104. (Close to Buildroot Linux CoreMark)
Modified Files:
`arch/risc-v/Kconfig`: Enabled `ARCH_MMU_EXT_THEAD` for BL808 SoC.
This PR configures the T-Head MMU to cache the the User Text, Data and Heap. We enable the MMU Flags for Shareable, Bufferable and Cacheable, as explained in this article: https://lupyuen.github.io/articles/plic3#appendix-mmu-caching-for-t-head-c906
This PR fixes the Slow Memory Access for NuttX Apps on BL808 and SG2000 SoCs: https://github.com/apache/nuttx/issues/12696. With this fix, SG2000 NuttX CoreMark jumps from 21 to 2,423. (Close to SG2000 Debian CoreMark)
We introduce a Kconfig Option: `ARCH_MMU_EXT_THEAD` ("System Type > Enable T-Head MMU extension support"). Enabling this Kconfig Option will configure the T-Head MMU to cache the User Text, Data and Heap.
This PR enables the MMU cache for only SG2000 SoC (Milk-V Duo S SBC). The next PR will apply the same settings to BL808 SoC (Pine64 Ox64 SBC).
Modified Files:
`arch/risc-v/Kconfig`: Added Kconfig Option `ARCH_MMU_EXT_THEAD` that will configure the T-Head MMU. Enabled `ARCH_MMU_EXT_THEAD` for SG2000 SoC.
`arch/risc-v/src/common/riscv_mmu.h`: Set the T-Head MMU Flags (Shareable, Bufferable and Cacheable) for User Text, Data and Heap, if `ARCH_MMU_EXT_THEAD` is enabled
`arch/risc-v/src/common/riscv_addrenv.c`: Extended the MMU Flags from 32 bits to 64 bits, to accommodate the T-Head MMU Flags
`arch/risc-v/src/common/riscv_exception.c`: Extended the MMU Flags from 32 bits to 64 bit, to accommodate the T-Head MMU Flags. This code is enabled only for MMU Paging (`CONFIG_PAGING`).
Only in the non-critical region， nuttx can the respond to the irq and not hold the lock
When returning from the irq, there is no need to check whether the lock needs to be released
we also need keep restore_critical_section in svc call
test:
Configuring NuttX and compile:
$ ./tools/configure.sh -l qemu-armv8a:nsh_smp
$ make
Running with qemu
$ 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>
Summary:
1.Modify the conditions for entering different include header files
2.Added pre-definition for _Atomic _Bool when it is missing
3.Added nuttx for stdatomic implementation. When toolchain does not support atomic, use lib/stdatomic to implement it
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
Update internal reference to get the most updated Espressif's
libraries. Those libraries are based on branch `release/v5.1` of
the ESP-IDF and include `v5.1.4` version of it.
"/mnt/yang/qixinwei_vela_warnings/nuttx/include/nuttx/spinlock.h", line 252: warning #76-D:
argument to macro is empty
SP_DSB();
^
"/mnt/yang/qixinwei_vela_warnings/nuttx/include/nuttx/spinlock.h", line 261: warning #76-D:
argument to macro is empty
SP_DMB();
^
"/mnt/yang/qixinwei_vela_warnings/nuttx/include/nuttx/spinlock.h", line 252: warning #76-D:
argument to macro is empty
SP_DSB();
^
"/mnt/yang/qixinwei_vela_warnings/nuttx/include/nuttx/spinlock.h", line 261: warning #76-D:
argument to macro is empty
SP_DMB();
^
"/mnt/yang/qixinwei_vela_warnings/nuttx/include/nuttx/spinlock.h", line 296: warning #76-D:
argument to macro is empty
SP_DSB();
^
Signed-off-by: yanghuatao <yanghuatao@xiaomi.com>
Some multicore RV chips (mpfs, jh7110 etc) have hart clusters
and globally numbered mhartids. Clusters with single hart or
SMP support can be managed by one NuttX instance. Currently
NuttX expects to use cluster-local ids.
This allows us to get local ids by offsetting mhartids with a
base value.
Note that there are chips (e.g. k230) that use cluster-local
ids directly, so this is not needed for them.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This generalizes the in-kernel syscall approach from KERNEL mode to
all build modes so that to unify in-kernel syscall invocations. As
a result, machine mode ECALL and the supervisor folder are no longer
needed.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
When executing fork() via a system call, the parent's stack gets corrupted
by the child, as during exception return the child loads the parent's
stack pointer from the context save area.
This happens because the full parent stack (including what has been pushed
during the system call) is copied to the child. What should be copied, is
only the user stack of the parent (the kernel stack is not interesting).
Fix this by only copying the parent's user stack to the child; and make
the child return directly to userspace (not via dispatch_syscall).
Simplifies the implementation of dispatch_syscall, making it easier to
understand and maintain. Let the C-compiler do most of the work, instead
of doing everything as inline assembly.
This revises PROTECTED build for qemu-rv mainly to avoid hard-coded
addresses in linker scripts. It also added rv32 support, cleaned up
config `pnsh64` and added config `pnsh`.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This adds NuttSBI support for rv-virt device so that to enable CI
checks for NuttSBI later. It allows using `-bios nuttx` option to
run NuttX with QEMU v6.2 w/o OpenSBI.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This adjusts sbi_start behavior so that if SBI late initialization hook
is defined, PMP setting is assumed to be fully done in the hook, because
the default PMP operation may fail for various reasons such as lacking
free entries or the default setting doesn't work on devices like QEMU
v6.2.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
These symbols only used in esp_spi.c and too simple
to conflict with others, so mark them as static:
- cfg
- ctx
- dev_cfg
- timing_param
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
Fixes regression from https://github.com/apache/nuttx/pull/12220
Error: chip/k230_start.c:80:13: error: 'k230_copy_init_data' defined but not used [-Werror=unused-function]
80 | static void k230_copy_init_data(void)
| ^~~~~~~~~~~~~~~~~~~
Steppoint can be implemented by icount(instruction count)
from RISC-V debug extension, but it may not implemented in all RISC-V cores.
Unfortunately, the currently supported RISC-V cores do not implement it.
Signed-off-by: Huang Qi <huangqi3@xiaomi.com>
