iommu/intel/dmar.c

1272 static int qi_check_fault(struct intel_iommu *iommu, int index, int wait_index)
1281 	if (qi->desc_status[wait_index] == QI_ABORT)
1303 			memcpy(desc, qi->desc + (wait_index << shift),
1351 		if (qi->desc_status[wait_index] == QI_ABORT)
1378 	int wait_index, index;
1417 	wait_index = (index + count) % QI_LENGTH;
1427 	qi->desc_status[wait_index] = QI_IN_USE;
1433 	wait_desc.qw1 = virt_to_phys(&qi->desc_status[wait_index]);
1437 	offset = wait_index << shift;
1449 	while (qi->desc_status[wait_index] != QI_DONE) {
1457 		rc = qi_check_fault(iommu, index, wait_index);