reason:
In the kernel, we are planning to remove all occurrences of up_cpu_pause as one of the steps to
simplify the implementation of critical sections. The goal is to enable spin_lock_irqsave to encapsulate critical sections,
thereby facilitating the replacement of critical sections(big lock) with smaller spin_lock_irqsave(small lock)
Signed-off-by: hujun5 <hujun5@xiaomi.com>
use reserved[2] in struct resource_table as the command, avoid the
resource table format do not follow the standard.
Signed-off-by: Yongrong Wang <wangyongrong@xiaomi.com>
add_compile_options(--param asan-globals=1) is recognized as
--param-lasan-globals=1, which causes compilation exception:
Signed-off-by: W-M-R <Mike_0528@163.com>
1. refactor the ghs/gcc/clang/armclang toolchain management in CMake
2. unify the cmake toolchain naming style
3. support greenhills build procedure with CMake
4. add protect build for greenhills and gnu toolchain with CMake
Signed-off-by: guoshichao <guoshichao@xiaomi.com>
The feature depends on ARCH_USE_SEPARATED_SECTION
the different memory area has different access speed and cache
capability, so the arch can custom allocate them based on
section names to achieve performance optimization
test:
sim:elf
sim:sotest
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
reason:
Currently, if we need to schedule a task to another CPU, we have to completely halt the other CPU,
manipulate the scheduling linked list, and then resume the operation of that CPU. This process is both time-consuming and unnecessary.
During this process, both the current CPU and the target CPU are inevitably subjected to busyloop.
The improved strategy is to simply send a cross-core interrupt to the target CPU.
The current CPU continues to run while the target CPU responds to the interrupt, eliminating the certainty of a busyloop occurring.
Signed-off-by: hujun5 <hujun5@xiaomi.com>
Because locate the command at the end the resource table is unfriendly
when we want to support multi virtio devices instead only one virtio
rpmsg device.
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
Add more common command for rptun and rpmsg_virtio frameworks,
also modify the rptun and rpmsg_virtio driver to use the common
commands.
Signed-off-by: Yongrong Wang <wangyongrong@xiaomi.com>
Move the panic logic in common places, later we can move more logic to
the framework instead of having the drivers implement it repeatedly.
Signed-off-by: Yongrong Wang <wangyongrong@xiaomi.com>
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
add remote addrenv to make the da is start from 0, so the uint32_t
da in resource table can store the correct address
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
1. Similar to asan, supports single byte out of bounds detection
2. Fix the script to address the issue of not supporting the big end
Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
Revert "Parallelize depend file generation"
This reverts commit d5b6ec450f.
parallel depend ddc does not significantly speed up compilation,
intermediately generated .ddc files can cause problems if compilation is interrupted unexpectedly
Signed-off-by: xuxin19 <xuxin19@xiaomi.com>
When in a multi-core structure, as the intermediate core,
remote is both the master and slave;When the remote exception or
restart occurs, it needs to notify the slave and reestablish the connection
Signed-off-by: yintao <yintao@xiaomi.com>
add sim_rpmsg_virtio.c to verify the new rpmsg virtio wrapper layer,
new the rpmsg virtio can be used in sim platfrom
Signed-off-by: Yongrong Wang <wangyongrong@xiaomi.com>
reason:
1 On different architectures, we can utilize more optimized strategies
to implement up_current_regs/up_set_current_regs.
eg. use interrupt registersor percpu registers.
code size
before
text data bss dec hex filename
262848 49985 63893 376726 5bf96 nuttx
after
text data bss dec hex filename
262844 49985 63893 376722 5bf92 nuttx
size change -4
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>
reason:
In SMP, when a context switch occurs, restore_critical_section is executed.
To reduce the time taken for context switching, we directly pass the required
parameters to restore_critical_section instead of acquiring them repeatedly.
Signed-off-by: hujun5 <hujun5@xiaomi.com>
The libmad and libmp3lame libraries have been ported to
apps/audioutils and will be compiled with NuttX.
Signed-off-by: shizhenghui <shizhenghui@xiaomi.com>
Make this_cpu is arch independent and up_cpu_index do that.
In AMP mode, up_cpu_index() may return the index of the physical core.
Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
Some hardware devices use discontinuous framebuffers, which require SIM support for simulating discontinuous framebuffers.
Signed-off-by: jianglianfang <jianglianfang@xiaomi.com>
There is a false positive in asan of gcc-13, we need to mask it to ensure that other parts work properly
sanitizer_common/sanitizer_common_interceptors.inc:
// FIXME: under ASan the call below may write to freed memory and corrupt
// its metadata. See
// https://github.com/google/sanitizers/issues/321.
==572161==ERROR: AddressSanitizer: dynamic-stack-buffer-overflow on address 0xed3d3f00 at pc 0xef46af64 bp 0xed3d3de8 sp 0xed3d39bc
WRITE of size 128 at 0xed3d3f00 thread T0
#0 0xef46af63 in __interceptor_pthread_sigmask ../../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:4419
#1 0x5486aa7d in up_irq_save sim/posix/sim_hostirq.c:97
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
hujun5