C++ (Cpp) qi_submit_sync Examples

Example #1

File: intel-svm.c Project: AshishNamdev/linux

static void intel_flush_svm_range_dev (struct intel_svm *svm, struct intel_svm_dev *sdev,
				       unsigned long address, unsigned long pages, int ih, int gl)
{
	struct qi_desc desc;

	if (pages == -1) {
		/* For global kernel pages we have to flush them in *all* PASIDs
		 * because that's the only option the hardware gives us. Despite
		 * the fact that they are actually only accessible through one. */
		if (gl)
			desc.low = QI_EIOTLB_PASID(svm->pasid) | QI_EIOTLB_DID(sdev->did) |
				QI_EIOTLB_GRAN(QI_GRAN_ALL_ALL) | QI_EIOTLB_TYPE;
		else
			desc.low = QI_EIOTLB_PASID(svm->pasid) | QI_EIOTLB_DID(sdev->did) |
				QI_EIOTLB_GRAN(QI_GRAN_NONG_PASID) | QI_EIOTLB_TYPE;
		desc.high = 0;
	} else {
		int mask = ilog2(__roundup_pow_of_two(pages));

		desc.low = QI_EIOTLB_PASID(svm->pasid) | QI_EIOTLB_DID(sdev->did) |
			QI_EIOTLB_GRAN(QI_GRAN_PSI_PASID) | QI_EIOTLB_TYPE;
		desc.high = QI_EIOTLB_ADDR(address) | QI_EIOTLB_GL(gl) |
			QI_EIOTLB_IH(ih) | QI_EIOTLB_AM(mask);
	}
	qi_submit_sync(&desc, svm->iommu);

	if (sdev->dev_iotlb) {
		desc.low = QI_DEV_EIOTLB_PASID(svm->pasid) | QI_DEV_EIOTLB_SID(sdev->sid) |
			QI_DEV_EIOTLB_QDEP(sdev->qdep) | QI_DEIOTLB_TYPE;
		if (pages == -1) {
			desc.high = QI_DEV_EIOTLB_ADDR(-1ULL >> 1) | QI_DEV_EIOTLB_SIZE;
		} else if (pages > 1) {

Example #2

File: intr_remapping.c Project: KaZoom/buildroot-linux-kernel-m3

static int qi_flush_iec(struct intel_iommu *iommu, int index, int mask)
{
	struct qi_desc desc;

	desc.low = QI_IEC_IIDEX(index) | QI_IEC_TYPE | QI_IEC_IM(mask)
		   | QI_IEC_SELECTIVE;
	desc.high = 0;

	return qi_submit_sync(&desc, iommu);
}