fix smp crash on sabre-6quad/smp, regression from:
|commit 1e49cb4828
|Author: hujun5 <hujun5@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 <hujun5@xiaomi.com>
Signed-off-by: chao an <anchao.archer@bytedance.com>
20f45f907f