PCC_SIGNATURE
.signature = PCC_SIGNATURE | uncore->chan_id,
cpu_to_le32(PCC_SIGNATURE | ctx->mbox_idx));
cpu_to_le32(PCC_SIGNATURE | ctx->mbox_idx));
if (amd_hfi_data->shmem->header.signature != PCC_SIGNATURE) {
.signature = PCC_SIGNATURE | hdev->chan_id,
.signature = PCC_SIGNATURE | hdev->chan_id,