anchao opened a new pull request, #15707: URL: https://github.com/apache/nuttx/pull/15707
## Summary arm/armv7: update percpu task only for co-processor fix smp crash on sabre-6quad/smp, regression from: ``` |commit 1e49cb4828f3cdb26252eab3e68f7ca9962bc8ba |Author: hujun5 <huj...@xiaomi.com> |Date: Thu Dec 5 16:58:17 2024 +0800 | | armv7-a/armv7-r/armv8-r: percpu reg store this_task | | This is continue work of https://github.com/apache/nuttx/pull/13726 | | We can utilize percpu storage to hold information about the | current running task. If we intend to implement this feature, we would | need to define two macros that help us manage this percpu information | effectively. | | up_this_task: This macro is designed to read the contents of the percpu | register to retrieve information about the current | running task.This allows us to quickly access | task-specific data without having to disable interrupts, | access global variables and obtain the current cpu index. | | up_update_task: This macro is responsible for updating the contents of | the percpu register.It is typically called during | initialization or when a context switch occurs to ensure | that the percpu register reflects the information of the | newly running task. | | Signed-off-by: hujun5 <huj...@xiaomi.com> ``` Signed-off-by: chao an <anchao.arc...@bytedance.com> ## Impact sabre-6quad/smp ## Testing sabre-6quad/smp: cmake -B build -DBOARD_CONFIG=sabre-6quad/smp -GNinja cmake --build build qemu-system-arm -semihosting -M sabrelite -m 1024 -smp 4 -nographic -kernel build/nuttx -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
