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riscv_percpu: Replace critical section with irqsave/irqrestore #15171

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Dec 13, 2024
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riscv_percpu: Replace critical section with irqsave/irqrestore #15171

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8 changes: 4 additions & 4 deletions arch/risc-v/src/common/riscv_percpu.c
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Original file line number Diff line number Diff line change
Expand Up @@ -222,14 +222,14 @@ void riscv_percpu_set_kstack(uintptr_t ksp)

/* This must be done with interrupts disabled */

flags = enter_critical_section();
flags = up_irq_save();
scratch = READ_CSR(CSR_SCRATCH);

DEBUGASSERT(scratch >= (uintptr_t) &g_percpu &&
scratch < (uintptr_t) &g_percpu + sizeof(g_percpu));

((riscv_percpu_t *)scratch)->ksp = ksp;
leave_critical_section(flags);
up_irq_restore(flags);
}

/****************************************************************************
Expand All @@ -254,12 +254,12 @@ void riscv_percpu_set_thread(struct tcb_s *tcb)

/* This must be done with interrupts disabled */

flags = enter_critical_section();
flags = up_irq_save();
scratch = READ_CSR(CSR_SCRATCH);

DEBUGASSERT(scratch >= (uintptr_t) &g_percpu &&
scratch < (uintptr_t) &g_percpu + sizeof(g_percpu));

((riscv_percpu_t *)scratch)->tcb = tcb;
leave_critical_section(flags);
up_irq_restore(flags);
}
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