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soc: intel_adsp: cavs: mask idc interrupt before halting cpu #65452

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Nov 22, 2023
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soc: intel_adsp: cavs: mask idc interrupt before halting cpu #65452

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8 changes: 7 additions & 1 deletion soc/xtensa/intel_adsp/cavs/multiprocessing.c
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Original file line number Diff line number Diff line change
Expand Up @@ -186,19 +186,25 @@ __imr void soc_mp_init(void)

int soc_adsp_halt_cpu(int id)
{
unsigned int irq_mask;

if (id == 0 || id == arch_curr_cpu()->id) {
return -EINVAL;
}

irq_mask = CAVS_L2_IDC;

#ifdef CONFIG_INTEL_ADSP_TIMER
/*
* Mask timer interrupt for this CPU so it won't wake up
* by itself once WFI (wait for interrupt) instruction
* runs.
*/
CAVS_INTCTRL[id].l2.set = CAVS_L2_DWCT0;
irq_mask |= CAVS_L2_DWCT0;
#endif

CAVS_INTCTRL[id].l2.set = irq_mask;

/* Stop sending IPIs to this core */
soc_cpus_active[id] = false;

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