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xtesa: fix lost save & restore states caused by merge code

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this is caused by:
35c8c80a00

Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ligd 2024-09-27 13:24:10 +08:00 • committed by Mateusz Szafoni
parent 1fb4f8f50e
commit a9df7f0d1e
1 changed files with 18 additions and 1 deletions
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19
arch/xtensa/src/common/xtensa_switchcontext.c
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@ -59,7 +59,24 @@ void up_switch_context(struct tcb_s *tcb, struct tcb_s *rtcb)
{
/* Are we in an interrupt handler? */
if (!up_current_regs())
if (up_current_regs())
{
/* Yes, then we have to do things differently.
* Just copy the current_regs into the OLD rtcb.
*/
xtensa_savestate(rtcb->xcp.regs);
/* Then switch contexts. Any necessary address environment
* changes will be made when the interrupt returns.
*/
xtensa_restorestate(tcb->xcp.regs);
}
/* No, then we will need to perform the user context switch */
else
{
/* Switch context to the context of the task at the head of the
* ready to run list.