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riscv: Some judgments are missing

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This commit fixes the regression from https://github.com/apache/nuttx/pull/14984

Signed-off-by: hujun5 <hujun5@xiaomi.com>
This commit is contained in:
hujun5 2024-12-03 16:41:20 +08:00 committed by Xiang Xiao
parent 1dc1e65202
commit 3e3701b272
2 changed files with 19 additions and 4 deletions
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11
arch/risc-v/src/common/riscv_doirq.c
View file

@ -61,6 +61,7 @@
uintreg_t *riscv_doirq(int irq, uintreg_t *regs)
{
struct tcb_s **running_task = &g_running_tasks[this_cpu()];
bool restore_context = false;
struct tcb_s *tcb = this_task();
board_autoled_on(LED_INIRQ);
@ -77,6 +78,10 @@ uintreg_t *riscv_doirq(int irq, uintreg_t *regs)
{
(*running_task)->xcp.regs = regs;
}
else
{
restore_context = true;
}
}
else
{
@ -98,7 +103,7 @@ uintreg_t *riscv_doirq(int irq, uintreg_t *regs)
/* Check for a context switch. */
if (*running_task != tcb)
if (*running_task != tcb || restore_context)
{
#ifdef CONFIG_ARCH_ADDRENV
/* Make sure that the address environment for the previously
@ -112,7 +117,11 @@ uintreg_t *riscv_doirq(int irq, uintreg_t *regs)
/* Update scheduler parameters */
if (!restore_context)
{
nxsched_suspend_scheduler(*running_task);
}
nxsched_resume_scheduler(tcb);
/* Record the new "running" task when context switch occurred.

8
arch/risc-v/src/common/supervisor/riscv_perform_syscall.c
View file

@ -40,11 +40,13 @@
void *riscv_perform_syscall(uintreg_t *regs)
{
struct tcb_s **running_task = &g_running_tasks[this_cpu()];
bool restore_context = true;
struct tcb_s *tcb;
if (regs[REG_A0] != SYS_restore_context)
{
(*running_task)->xcp.regs = regs;
restore_context = false;
}
/* Set irq flag */
@ -56,7 +58,7 @@ void *riscv_perform_syscall(uintreg_t *regs)
riscv_swint(0, regs, NULL);
tcb = this_task();
if (*running_task != tcb)
if (*running_task != tcb || restore_context)
{
#ifdef CONFIG_ARCH_ADDRENV
/* Make sure that the address environment for the previously
@ -69,7 +71,11 @@ void *riscv_perform_syscall(uintreg_t *regs)
#endif
/* Update scheduler parameters */
if (!restore_context)
{
nxsched_suspend_scheduler(*running_task);
}
nxsched_resume_scheduler(tcb);
/* Record the new "running" task. g_running_tasks[] is only used by