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idc: check if secondary core is down before sending IDC #8466

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Nov 20, 2023
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idc: check if secondary core is down before sending IDC #8466

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14 changes: 14 additions & 0 deletions src/idc/zephyr_idc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,16 @@
#include <rtos/alloc.h>
#include <rtos/spinlock.h>
#include <ipc/topology.h>
#include <sof/trace/trace.h>
#include <sof/lib/uuid.h>

LOG_MODULE_REGISTER(zephyr_idc, CONFIG_SOF_LOG_LEVEL);

/* 5f1ec3f8-faaf-4099-903c-cee98351f169 */
DECLARE_SOF_UUID("zephyr-idc", zephyr_idc_uuid, 0x5f1ec3f8, 0xfaaf, 0x4099,
0x90, 0x3c, 0xce, 0xe9, 0x83, 0x51, 0xf1, 0x69);

DECLARE_TR_CTX(zephyr_idc_tr, SOF_UUID(zephyr_idc_uuid), LOG_LEVEL_INFO);

/*
* Inter-CPU communication is only used in
Expand Down Expand Up @@ -119,6 +129,10 @@ int idc_send_msg(struct idc_msg *msg, uint32_t mode)
work->handler = idc_handler;
work->sync = mode == IDC_BLOCKING;

if (!cpu_is_core_enabled(target_cpu)) {
tr_err(&zephyr_idc_tr, "Core %u is down, cannot sent IDC message", target_cpu);
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grammar: sent->send

return -EACCES;
}
if (msg->payload) {
idc_send_memcpy_err = memcpy_s(payload->data, sizeof(payload->data),
msg->payload, msg->size);
Expand Down