Commit 0251d010 authored by Lu Baolu's avatar Lu Baolu Committed by Joerg Roedel
Browse files

iommu: Add gfp parameter to iommu_alloc_resv_region 



Add gfp parameter to iommu_alloc_resv_region() for the callers to specify
the memory allocation behavior. Thus iommu_alloc_resv_region() could also
be available in critical contexts.

Signed-off-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Tested-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Link: https://lore.kernel.org/r/20220927053109.4053662-2-baolu.lu@linux.intel.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 9abf2313

drivers/acpi/arm64/iort.c

+2 −1
Original line number Diff line number Diff line
@@ -1142,7 +1142,8 @@ static void iort_iommu_msi_get_resv_regions(struct device *dev, 
			struct iommu_resv_region *region;



			region = iommu_alloc_resv_region(base + SZ_64K, SZ_64K,

							 prot, IOMMU_RESV_MSI);

							 prot, IOMMU_RESV_MSI,

							 GFP_KERNEL);

			if (region)

				list_add_tail(&region->list, head);

		}

drivers/iommu/amd/iommu.c

+4 −3
Original line number Diff line number Diff line
@@ -2330,7 +2330,8 @@ static void amd_iommu_get_resv_regions(struct device *dev, 
			type = IOMMU_RESV_RESERVED;



		region = iommu_alloc_resv_region(entry->address_start,

						 length, prot, type);

						 length, prot, type,

						 GFP_KERNEL);

		if (!region) {

			dev_err(dev, "Out of memory allocating dm-regions\n");

			return;
@@ -2340,14 +2341,14 @@ static void amd_iommu_get_resv_regions(struct device *dev, 


	region = iommu_alloc_resv_region(MSI_RANGE_START,

					 MSI_RANGE_END - MSI_RANGE_START + 1,

					 0, IOMMU_RESV_MSI);

					 0, IOMMU_RESV_MSI, GFP_KERNEL);

	if (!region)

		return;

	list_add_tail(&region->list, head);



	region = iommu_alloc_resv_region(HT_RANGE_START,

					 HT_RANGE_END - HT_RANGE_START + 1,

					 0, IOMMU_RESV_RESERVED);

					 0, IOMMU_RESV_RESERVED, GFP_KERNEL);

	if (!region)

		return;

	list_add_tail(&region->list, head);

drivers/iommu/apple-dart.c

+1 −1
Original line number Diff line number Diff line
@@ -758,7 +758,7 @@ static void apple_dart_get_resv_regions(struct device *dev, 


		region = iommu_alloc_resv_region(DOORBELL_ADDR,

						 PAGE_SIZE, prot,

						 IOMMU_RESV_MSI);

						 IOMMU_RESV_MSI, GFP_KERNEL);

		if (!region)

			return;

drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c

+1 −1
Original line number Diff line number Diff line
@@ -2757,7 +2757,7 @@ static void arm_smmu_get_resv_regions(struct device *dev, 
	int prot = IOMMU_WRITE | IOMMU_NOEXEC | IOMMU_MMIO;



	region = iommu_alloc_resv_region(MSI_IOVA_BASE, MSI_IOVA_LENGTH,

					 prot, IOMMU_RESV_SW_MSI);

					 prot, IOMMU_RESV_SW_MSI, GFP_KERNEL);

	if (!region)

		return;

drivers/iommu/arm/arm-smmu/arm-smmu.c

+1 −1
Original line number Diff line number Diff line
@@ -1534,7 +1534,7 @@ static void arm_smmu_get_resv_regions(struct device *dev, 
	int prot = IOMMU_WRITE | IOMMU_NOEXEC | IOMMU_MMIO;



	region = iommu_alloc_resv_region(MSI_IOVA_BASE, MSI_IOVA_LENGTH,

					 prot, IOMMU_RESV_SW_MSI);

					 prot, IOMMU_RESV_SW_MSI, GFP_KERNEL);

	if (!region)

		return;