diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 37f2fbb4b129..2bed113c4e6d 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -2268,13 +2268,6 @@ static int amd_iommu_def_domain_type(struct device *dev)
const struct iommu_ops amd_iommu_ops = {
.capable = amd_iommu_capable,
.domain_alloc = amd_iommu_domain_alloc,
- .domain_free = amd_iommu_domain_free,
- .attach_dev = amd_iommu_attach_device,
- .detach_dev = amd_iommu_detach_device,
- .map = amd_iommu_map,
- .iotlb_sync_map = amd_iommu_iotlb_sync_map,
- .unmap = amd_iommu_unmap,
- .iova_to_phys = amd_iommu_iova_to_phys,
.probe_device = amd_iommu_probe_device,
.release_device = amd_iommu_release_device,
.probe_finalize = amd_iommu_probe_finalize,
@@ -2283,9 +2276,18 @@ const struct iommu_ops amd_iommu_ops = {
.put_resv_regions = generic_iommu_put_resv_regions,
.is_attach_deferred = amd_iommu_is_attach_deferred,
.pgsize_bitmap = AMD_IOMMU_PGSIZES,
- .flush_iotlb_all = amd_iommu_flush_iotlb_all,
- .iotlb_sync = amd_iommu_iotlb_sync,
.def_domain_type = amd_iommu_def_domain_type,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = amd_iommu_attach_device,
+ .detach_dev = amd_iommu_detach_device,
+ .map = amd_iommu_map,
+ .unmap = amd_iommu_unmap,
+ .iotlb_sync_map = amd_iommu_iotlb_sync_map,
+ .iova_to_phys = amd_iommu_iova_to_phys,
+ .flush_iotlb_all = amd_iommu_flush_iotlb_all,
+ .iotlb_sync = amd_iommu_iotlb_sync,
+ .free = amd_iommu_domain_free,
+ }
};
/*****************************************************************************
diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c
index 565ef5598811..decafb07ad08 100644
--- a/drivers/iommu/apple-dart.c
+++ b/drivers/iommu/apple-dart.c
@@ -765,15 +765,6 @@ static void apple_dart_get_resv_regions(struct device *dev,
static const struct iommu_ops apple_dart_iommu_ops = {
.domain_alloc = apple_dart_domain_alloc,
- .domain_free = apple_dart_domain_free,
- .attach_dev = apple_dart_attach_dev,
- .detach_dev = apple_dart_detach_dev,
- .map_pages = apple_dart_map_pages,
- .unmap_pages = apple_dart_unmap_pages,
- .flush_iotlb_all = apple_dart_flush_iotlb_all,
- .iotlb_sync = apple_dart_iotlb_sync,
- .iotlb_sync_map = apple_dart_iotlb_sync_map,
- .iova_to_phys = apple_dart_iova_to_phys,
.probe_device = apple_dart_probe_device,
.release_device = apple_dart_release_device,
.device_group = apple_dart_device_group,
@@ -782,6 +773,17 @@ static const struct iommu_ops apple_dart_iommu_ops = {
.get_resv_regions = apple_dart_get_resv_regions,
.put_resv_regions = generic_iommu_put_resv_regions,
.pgsize_bitmap = -1UL, /* Restricted during dart probe */
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = apple_dart_attach_dev,
+ .detach_dev = apple_dart_detach_dev,
+ .map_pages = apple_dart_map_pages,
+ .unmap_pages = apple_dart_unmap_pages,
+ .flush_iotlb_all = apple_dart_flush_iotlb_all,
+ .iotlb_sync = apple_dart_iotlb_sync,
+ .iotlb_sync_map = apple_dart_iotlb_sync_map,
+ .iova_to_phys = apple_dart_iova_to_phys,
+ .free = apple_dart_domain_free,
+ }
};
static irqreturn_t apple_dart_irq(int irq, void *dev)
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index 6dc6d8b6b368..fd49282c03a3 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2841,17 +2841,9 @@ static int arm_smmu_dev_disable_feature(struct device *dev,
static struct iommu_ops arm_smmu_ops = {
.capable = arm_smmu_capable,
.domain_alloc = arm_smmu_domain_alloc,
- .domain_free = arm_smmu_domain_free,
- .attach_dev = arm_smmu_attach_dev,
- .map_pages = arm_smmu_map_pages,
- .unmap_pages = arm_smmu_unmap_pages,
- .flush_iotlb_all = arm_smmu_flush_iotlb_all,
- .iotlb_sync = arm_smmu_iotlb_sync,
- .iova_to_phys = arm_smmu_iova_to_phys,
.probe_device = arm_smmu_probe_device,
.release_device = arm_smmu_release_device,
.device_group = arm_smmu_device_group,
- .enable_nesting = arm_smmu_enable_nesting,
.of_xlate = arm_smmu_of_xlate,
.get_resv_regions = arm_smmu_get_resv_regions,
.put_resv_regions = generic_iommu_put_resv_regions,
@@ -2865,6 +2857,16 @@ static struct iommu_ops arm_smmu_ops = {
.page_response = arm_smmu_page_response,
.pgsize_bitmap = -1UL, /* Restricted during device attach */
.owner = THIS_MODULE,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = arm_smmu_attach_dev,
+ .map_pages = arm_smmu_map_pages,
+ .unmap_pages = arm_smmu_unmap_pages,
+ .flush_iotlb_all = arm_smmu_flush_iotlb_all,
+ .iotlb_sync = arm_smmu_iotlb_sync,
+ .iova_to_phys = arm_smmu_iova_to_phys,
+ .enable_nesting = arm_smmu_enable_nesting,
+ .free = arm_smmu_domain_free,
+ }
};
/* Probing and initialisation functions */
diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 4bc75c4ce402..41321fb47152 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
@@ -1583,25 +1583,27 @@ static int arm_smmu_def_domain_type(struct device *dev)
static struct iommu_ops arm_smmu_ops = {
.capable = arm_smmu_capable,
.domain_alloc = arm_smmu_domain_alloc,
- .domain_free = arm_smmu_domain_free,
- .attach_dev = arm_smmu_attach_dev,
- .map_pages = arm_smmu_map_pages,
- .unmap_pages = arm_smmu_unmap_pages,
- .flush_iotlb_all = arm_smmu_flush_iotlb_all,
- .iotlb_sync = arm_smmu_iotlb_sync,
- .iova_to_phys = arm_smmu_iova_to_phys,
.probe_device = arm_smmu_probe_device,
.release_device = arm_smmu_release_device,
.probe_finalize = arm_smmu_probe_finalize,
.device_group = arm_smmu_device_group,
- .enable_nesting = arm_smmu_enable_nesting,
- .set_pgtable_quirks = arm_smmu_set_pgtable_quirks,
.of_xlate = arm_smmu_of_xlate,
.get_resv_regions = arm_smmu_get_resv_regions,
.put_resv_regions = generic_iommu_put_resv_regions,
.def_domain_type = arm_smmu_def_domain_type,
.pgsize_bitmap = -1UL, /* Restricted during device attach */
.owner = THIS_MODULE,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = arm_smmu_attach_dev,
+ .map_pages = arm_smmu_map_pages,
+ .unmap_pages = arm_smmu_unmap_pages,
+ .flush_iotlb_all = arm_smmu_flush_iotlb_all,
+ .iotlb_sync = arm_smmu_iotlb_sync,
+ .iova_to_phys = arm_smmu_iova_to_phys,
+ .enable_nesting = arm_smmu_enable_nesting,
+ .set_pgtable_quirks = arm_smmu_set_pgtable_quirks,
+ .free = arm_smmu_domain_free,
+ }
};
static void arm_smmu_device_reset(struct arm_smmu_device *smmu)
diff --git a/drivers/iommu/arm/arm-smmu/qcom_iommu.c b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
index b91874cb6cf3..ed659de20661 100644
--- a/drivers/iommu/arm/arm-smmu/qcom_iommu.c
+++ b/drivers/iommu/arm/arm-smmu/qcom_iommu.c
@@ -590,19 +590,21 @@ static int qcom_iommu_of_xlate(struct device *dev, struct of_phandle_args *args)
static const struct iommu_ops qcom_iommu_ops = {
.capable = qcom_iommu_capable,
.domain_alloc = qcom_iommu_domain_alloc,
- .domain_free = qcom_iommu_domain_free,
- .attach_dev = qcom_iommu_attach_dev,
- .detach_dev = qcom_iommu_detach_dev,
- .map = qcom_iommu_map,
- .unmap = qcom_iommu_unmap,
- .flush_iotlb_all = qcom_iommu_flush_iotlb_all,
- .iotlb_sync = qcom_iommu_iotlb_sync,
- .iova_to_phys = qcom_iommu_iova_to_phys,
.probe_device = qcom_iommu_probe_device,
.release_device = qcom_iommu_release_device,
.device_group = generic_device_group,
.of_xlate = qcom_iommu_of_xlate,
.pgsize_bitmap = SZ_4K | SZ_64K | SZ_1M | SZ_16M,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = qcom_iommu_attach_dev,
+ .detach_dev = qcom_iommu_detach_dev,
+ .map = qcom_iommu_map,
+ .unmap = qcom_iommu_unmap,
+ .flush_iotlb_all = qcom_iommu_flush_iotlb_all,
+ .iotlb_sync = qcom_iommu_iotlb_sync,
+ .iova_to_phys = qcom_iommu_iova_to_phys,
+ .free = qcom_iommu_domain_free,
+ }
};
static int qcom_iommu_sec_ptbl_init(struct device *dev)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 939ffa768986..71f2018e23fe 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -1309,17 +1309,19 @@ static int exynos_iommu_of_xlate(struct device *dev,
static const struct iommu_ops exynos_iommu_ops = {
.domain_alloc = exynos_iommu_domain_alloc,
- .domain_free = exynos_iommu_domain_free,
- .attach_dev = exynos_iommu_attach_device,
- .detach_dev = exynos_iommu_detach_device,
- .map = exynos_iommu_map,
- .unmap = exynos_iommu_unmap,
- .iova_to_phys = exynos_iommu_iova_to_phys,
.device_group = generic_device_group,
.probe_device = exynos_iommu_probe_device,
.release_device = exynos_iommu_release_device,
.pgsize_bitmap = SECT_SIZE | LPAGE_SIZE | SPAGE_SIZE,
.of_xlate = exynos_iommu_of_xlate,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = exynos_iommu_attach_device,
+ .detach_dev = exynos_iommu_detach_device,
+ .map = exynos_iommu_map,
+ .unmap = exynos_iommu_unmap,
+ .iova_to_phys = exynos_iommu_iova_to_phys,
+ .free = exynos_iommu_domain_free,
+ }
};
static int __init exynos_iommu_init(void)
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index a47f47307109..69a4a62dc3b9 100644
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -453,13 +453,15 @@ static void fsl_pamu_release_device(struct device *dev)
static const struct iommu_ops fsl_pamu_ops = {
.capable = fsl_pamu_capable,
.domain_alloc = fsl_pamu_domain_alloc,
- .domain_free = fsl_pamu_domain_free,
- .attach_dev = fsl_pamu_attach_device,
- .detach_dev = fsl_pamu_detach_device,
- .iova_to_phys = fsl_pamu_iova_to_phys,
.probe_device = fsl_pamu_probe_device,
.release_device = fsl_pamu_release_device,
.device_group = fsl_pamu_device_group,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = fsl_pamu_attach_device,
+ .detach_dev = fsl_pamu_detach_device,
+ .iova_to_phys = fsl_pamu_iova_to_phys,
+ .free = fsl_pamu_domain_free,
+ }
};
int __init pamu_domain_init(void)
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 80f1294be634..b549172e88ef 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -5092,15 +5092,6 @@ static void intel_iommu_iotlb_sync_map(struct iommu_domain *domain,
const struct iommu_ops intel_iommu_ops = {
.capable = intel_iommu_capable,
.domain_alloc = intel_iommu_domain_alloc,
- .domain_free = intel_iommu_domain_free,
- .attach_dev = intel_iommu_attach_device,
- .detach_dev = intel_iommu_detach_device,
- .map_pages = intel_iommu_map_pages,
- .unmap_pages = intel_iommu_unmap_pages,
- .iotlb_sync_map = intel_iommu_iotlb_sync_map,
- .flush_iotlb_all = intel_flush_iotlb_all,
- .iotlb_sync = intel_iommu_tlb_sync,
- .iova_to_phys = intel_iommu_iova_to_phys,
.probe_device = intel_iommu_probe_device,
.probe_finalize = intel_iommu_probe_finalize,
.release_device = intel_iommu_release_device,
@@ -5118,6 +5109,17 @@ const struct iommu_ops intel_iommu_ops = {
.sva_get_pasid = intel_svm_get_pasid,
.page_response = intel_svm_page_response,
#endif
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = intel_iommu_attach_device,
+ .detach_dev = intel_iommu_detach_device,
+ .map_pages = intel_iommu_map_pages,
+ .unmap_pages = intel_iommu_unmap_pages,
+ .iotlb_sync_map = intel_iommu_iotlb_sync_map,
+ .flush_iotlb_all = intel_flush_iotlb_all,
+ .iotlb_sync = intel_iommu_tlb_sync,
+ .iova_to_phys = intel_iommu_iova_to_phys,
+ .free = intel_iommu_domain_free,
+ }
};
static void quirk_iommu_igfx(struct pci_dev *dev)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 27276421d253..f2c45b85b9fc 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -1950,10 +1950,11 @@ static struct iommu_domain *__iommu_domain_alloc(struct bus_type *bus,
if (!domain)
return NULL;
- domain->ops = bus->iommu_ops;
domain->type = type;
/* Assume all sizes by default; the driver may override this later */
- domain->pgsize_bitmap = bus->iommu_ops->pgsize_bitmap;
+ domain->pgsize_bitmap = bus->iommu_ops->pgsize_bitmap;
+ if (!domain->ops)
+ domain->ops = bus->iommu_ops->default_domain_ops;
if (iommu_is_dma_domain(domain) && iommu_get_dma_cookie(domain)) {
iommu_domain_free(domain);
@@ -1971,7 +1972,7 @@ EXPORT_SYMBOL_GPL(iommu_domain_alloc);
void iommu_domain_free(struct iommu_domain *domain)
{
iommu_put_dma_cookie(domain);
- domain->ops->domain_free(domain);
+ domain->ops->free(domain);
}
EXPORT_SYMBOL_GPL(iommu_domain_free);
@@ -2242,7 +2243,7 @@ static int __iommu_map_pages(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot,
gfp_t gfp, size_t *mapped)
{
- const struct iommu_ops *ops = domain->ops;
+ const struct iommu_domain_ops *ops = domain->ops;
size_t pgsize, count;
int ret;
@@ -2265,7 +2266,7 @@ static int __iommu_map_pages(struct iommu_domain *domain, unsigned long iova,
static int __iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot, gfp_t gfp)
{
- const struct iommu_ops *ops = domain->ops;
+ const struct iommu_domain_ops *ops = domain->ops;
unsigned long orig_iova = iova;
unsigned int min_pagesz;
size_t orig_size = size;
@@ -2325,7 +2326,7 @@ static int __iommu_map(struct iommu_domain *domain, unsigned long iova,
static int _iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot, gfp_t gfp)
{
- const struct iommu_ops *ops = domain->ops;
+ const struct iommu_domain_ops *ops = domain->ops;
int ret;
ret = __iommu_map(domain, iova, paddr, size, prot, gfp);
@@ -2354,7 +2355,7 @@ static size_t __iommu_unmap_pages(struct iommu_domain *domain,
unsigned long iova, size_t size,
struct iommu_iotlb_gather *iotlb_gather)
{
- const struct iommu_ops *ops = domain->ops;
+ const struct iommu_domain_ops *ops = domain->ops;
size_t pgsize, count;
pgsize = iommu_pgsize(domain, iova, iova, size, &count);
@@ -2367,7 +2368,7 @@ static size_t __iommu_unmap(struct iommu_domain *domain,
unsigned long iova, size_t size,
struct iommu_iotlb_gather *iotlb_gather)
{
- const struct iommu_ops *ops = domain->ops;
+ const struct iommu_domain_ops *ops = domain->ops;
size_t unmapped_page, unmapped = 0;
unsigned long orig_iova = iova;
unsigned int min_pagesz;
@@ -2443,7 +2444,7 @@ static ssize_t __iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
struct scatterlist *sg, unsigned int nents, int prot,
gfp_t gfp)
{
- const struct iommu_ops *ops = domain->ops;
+ const struct iommu_domain_ops *ops = domain->ops;
size_t len = 0, mapped = 0;
phys_addr_t start;
unsigned int i = 0;
diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index ca752bdc710f..00d5f7a33499 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -868,14 +868,6 @@ static struct iommu_group *ipmmu_find_group(struct device *dev)
static const struct iommu_ops ipmmu_ops = {
.domain_alloc = ipmmu_domain_alloc,
- .domain_free = ipmmu_domain_free,
- .attach_dev = ipmmu_attach_device,
- .detach_dev = ipmmu_detach_device,
- .map = ipmmu_map,
- .unmap = ipmmu_unmap,
- .flush_iotlb_all = ipmmu_flush_iotlb_all,
- .iotlb_sync = ipmmu_iotlb_sync,
- .iova_to_phys = ipmmu_iova_to_phys,
.probe_device = ipmmu_probe_device,
.release_device = ipmmu_release_device,
.probe_finalize = ipmmu_probe_finalize,
@@ -883,6 +875,16 @@ static const struct iommu_ops ipmmu_ops = {
? generic_device_group : ipmmu_find_group,
.pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K,
.of_xlate = ipmmu_of_xlate,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = ipmmu_attach_device,
+ .detach_dev = ipmmu_detach_device,
+ .map = ipmmu_map,
+ .unmap = ipmmu_unmap,
+ .flush_iotlb_all = ipmmu_flush_iotlb_all,
+ .iotlb_sync = ipmmu_iotlb_sync,
+ .iova_to_phys = ipmmu_iova_to_phys,
+ .free = ipmmu_domain_free,
+ }
};
/* -----------------------------------------------------------------------------
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 6a2e511edb85..4f441f1b750d 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -668,25 +668,27 @@ fail:
static struct iommu_ops msm_iommu_ops = {
.domain_alloc = msm_iommu_domain_alloc,
- .domain_free = msm_iommu_domain_free,
- .attach_dev = msm_iommu_attach_dev,
- .detach_dev = msm_iommu_detach_dev,
- .map = msm_iommu_map,
- .unmap = msm_iommu_unmap,
- /*
- * Nothing is needed here, the barrier to guarantee
- * completion of the tlb sync operation is implicitly
- * taken care when the iommu client does a writel before
- * kick starting the other master.
- */
- .iotlb_sync = NULL,
- .iotlb_sync_map = msm_iommu_sync_map,
- .iova_to_phys = msm_iommu_iova_to_phys,
.probe_device = msm_iommu_probe_device,
.release_device = msm_iommu_release_device,
.device_group = generic_device_group,
.pgsize_bitmap = MSM_IOMMU_PGSIZES,
.of_xlate = qcom_iommu_of_xlate,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = msm_iommu_attach_dev,
+ .detach_dev = msm_iommu_detach_dev,
+ .map = msm_iommu_map,
+ .unmap = msm_iommu_unmap,
+ /*
+ * Nothing is needed here, the barrier to guarantee
+ * completion of the tlb sync operation is implicitly
+ * taken care when the iommu client does a writel before
+ * kick starting the other master.
+ */
+ .iotlb_sync = NULL,
+ .iotlb_sync_map = msm_iommu_sync_map,
+ .iova_to_phys = msm_iommu_iova_to_phys,
+ .free = msm_iommu_domain_free,
+ }
};
static int msm_iommu_probe(struct platform_device *pdev)
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 25b834104790..884c288a8f63 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -658,15 +658,6 @@ static void mtk_iommu_get_resv_regions(struct device *dev,
static const struct iommu_ops mtk_iommu_ops = {
.domain_alloc = mtk_iommu_domain_alloc,
- .domain_free = mtk_iommu_domain_free,
- .attach_dev = mtk_iommu_attach_device,
- .detach_dev = mtk_iommu_detach_device,
- .map = mtk_iommu_map,
- .unmap = mtk_iommu_unmap,
- .flush_iotlb_all = mtk_iommu_flush_iotlb_all,
- .iotlb_sync = mtk_iommu_iotlb_sync,
- .iotlb_sync_map = mtk_iommu_sync_map,
- .iova_to_phys = mtk_iommu_iova_to_phys,
.probe_device = mtk_iommu_probe_device,
.release_device = mtk_iommu_release_device,
.device_group = mtk_iommu_device_group,
@@ -675,6 +666,17 @@ static const struct iommu_ops mtk_iommu_ops = {
.put_resv_regions = generic_iommu_put_resv_regions,
.pgsize_bitmap = SZ_4K | SZ_64K | SZ_1M | SZ_16M,
.owner = THIS_MODULE,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = mtk_iommu_attach_device,
+ .detach_dev = mtk_iommu_detach_device,
+ .map = mtk_iommu_map,
+ .unmap = mtk_iommu_unmap,
+ .flush_iotlb_all = mtk_iommu_flush_iotlb_all,
+ .iotlb_sync = mtk_iommu_iotlb_sync,
+ .iotlb_sync_map = mtk_iommu_sync_map,
+ .iova_to_phys = mtk_iommu_iova_to_phys,
+ .free = mtk_iommu_domain_free,
+ }
};
static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index be22fcf988ce..293ef7e1a861 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -514,12 +514,6 @@ static int mtk_iommu_hw_init(const struct mtk_iommu_data *data)
static const struct iommu_ops mtk_iommu_ops = {
.domain_alloc = mtk_iommu_domain_alloc,
- .domain_free = mtk_iommu_domain_free,
- .attach_dev = mtk_iommu_attach_device,
- .detach_dev = mtk_iommu_detach_device,
- .map = mtk_iommu_map,
- .unmap = mtk_iommu_unmap,
- .iova_to_phys = mtk_iommu_iova_to_phys,
.probe_device = mtk_iommu_probe_device,
.probe_finalize = mtk_iommu_probe_finalize,
.release_device = mtk_iommu_release_device,
@@ -527,6 +521,14 @@ static const struct iommu_ops mtk_iommu_ops = {
.device_group = generic_device_group,
.pgsize_bitmap = ~0UL << MT2701_IOMMU_PAGE_SHIFT,
.owner = THIS_MODULE,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = mtk_iommu_attach_device,
+ .detach_dev = mtk_iommu_detach_device,
+ .map = mtk_iommu_map,
+ .unmap = mtk_iommu_unmap,
+ .iova_to_phys = mtk_iommu_iova_to_phys,
+ .free = mtk_iommu_domain_free,
+ }
};
static const struct of_device_id mtk_iommu_of_ids[] = {
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 980e4af3f06b..4aab631ef517 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -1734,16 +1734,18 @@ static struct iommu_group *omap_iommu_device_group(struct device *dev)
static const struct iommu_ops omap_iommu_ops = {
.domain_alloc = omap_iommu_domain_alloc,
- .domain_free = omap_iommu_domain_free,
- .attach_dev = omap_iommu_attach_dev,
- .detach_dev = omap_iommu_detach_dev,
- .map = omap_iommu_map,
- .unmap = omap_iommu_unmap,
- .iova_to_phys = omap_iommu_iova_to_phys,
.probe_device = omap_iommu_probe_device,
.release_device = omap_iommu_release_device,
.device_group = omap_iommu_device_group,
.pgsize_bitmap = OMAP_IOMMU_PGSIZES,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = omap_iommu_attach_dev,
+ .detach_dev = omap_iommu_detach_dev,
+ .map = omap_iommu_map,
+ .unmap = omap_iommu_unmap,
+ .iova_to_phys = omap_iommu_iova_to_phys,
+ .free = omap_iommu_domain_free,
+ }
};
static int __init omap_iommu_init(void)
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index 7f23ad61c094..2ae97a84d41b 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1187,17 +1187,19 @@ static int rk_iommu_of_xlate(struct device *dev,
static const struct iommu_ops rk_iommu_ops = {
.domain_alloc = rk_iommu_domain_alloc,
- .domain_free = rk_iommu_domain_free,
- .attach_dev = rk_iommu_attach_device,
- .detach_dev = rk_iommu_detach_device,
- .map = rk_iommu_map,
- .unmap = rk_iommu_unmap,
.probe_device = rk_iommu_probe_device,
.release_device = rk_iommu_release_device,
- .iova_to_phys = rk_iommu_iova_to_phys,
.device_group = rk_iommu_device_group,
.pgsize_bitmap = RK_IOMMU_PGSIZE_BITMAP,
.of_xlate = rk_iommu_of_xlate,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = rk_iommu_attach_device,
+ .detach_dev = rk_iommu_detach_device,
+ .map = rk_iommu_map,
+ .unmap = rk_iommu_unmap,
+ .iova_to_phys = rk_iommu_iova_to_phys,
+ .free = rk_iommu_domain_free,
+ }
};
static int rk_iommu_probe(struct platform_device *pdev)
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
index 50860ebdd087..3833e86c6e7b 100644
--- a/drivers/iommu/s390-iommu.c
+++ b/drivers/iommu/s390-iommu.c
@@ -363,16 +363,18 @@ void zpci_destroy_iommu(struct zpci_dev *zdev)
static const struct iommu_ops s390_iommu_ops = {
.capable = s390_iommu_capable,
.domain_alloc = s390_domain_alloc,
- .domain_free = s390_domain_free,
- .attach_dev = s390_iommu_attach_device,
- .detach_dev = s390_iommu_detach_device,
- .map = s390_iommu_map,
- .unmap = s390_iommu_unmap,
- .iova_to_phys = s390_iommu_iova_to_phys,
.probe_device = s390_iommu_probe_device,
.release_device = s390_iommu_release_device,
.device_group = generic_device_group,
.pgsize_bitmap = S390_IOMMU_PGSIZES,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = s390_iommu_attach_device,
+ .detach_dev = s390_iommu_detach_device,
+ .map = s390_iommu_map,
+ .unmap = s390_iommu_unmap,
+ .iova_to_phys = s390_iommu_iova_to_phys,
+ .free = s390_domain_free,
+ }
};
static int __init s390_iommu_init(void)
diff --git a/drivers/iommu/sprd-iommu.c b/drivers/iommu/sprd-iommu.c
index 27ac818b0354..bd409bab6286 100644
--- a/drivers/iommu/sprd-iommu.c
+++ b/drivers/iommu/sprd-iommu.c
@@ -416,20 +416,22 @@ static int sprd_iommu_of_xlate(struct device *dev, struct of_phandle_args *args)
static const struct iommu_ops sprd_iommu_ops = {
.domain_alloc = sprd_iommu_domain_alloc,
- .domain_free = sprd_iommu_domain_free,
- .attach_dev = sprd_iommu_attach_device,
- .detach_dev = sprd_iommu_detach_device,
- .map = sprd_iommu_map,
- .unmap = sprd_iommu_unmap,
- .iotlb_sync_map = sprd_iommu_sync_map,
- .iotlb_sync = sprd_iommu_sync,
- .iova_to_phys = sprd_iommu_iova_to_phys,
.probe_device = sprd_iommu_probe_device,
.release_device = sprd_iommu_release_device,
.device_group = sprd_iommu_device_group,
.of_xlate = sprd_iommu_of_xlate,
.pgsize_bitmap = ~0UL << SPRD_IOMMU_PAGE_SHIFT,
.owner = THIS_MODULE,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = sprd_iommu_attach_device,
+ .detach_dev = sprd_iommu_detach_device,
+ .map = sprd_iommu_map,
+ .unmap = sprd_iommu_unmap,
+ .iotlb_sync_map = sprd_iommu_sync_map,
+ .iotlb_sync = sprd_iommu_sync,
+ .iova_to_phys = sprd_iommu_iova_to_phys,
+ .free = sprd_iommu_domain_free,
+ }
};
static const struct of_device_id sprd_iommu_of_match[] = {
diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
index 92997021e188..c54ab477b8fd 100644
--- a/drivers/iommu/sun50i-iommu.c
+++ b/drivers/iommu/sun50i-iommu.c
@@ -760,19 +760,21 @@ static int sun50i_iommu_of_xlate(struct device *dev,
static const struct iommu_ops sun50i_iommu_ops = {
.pgsize_bitmap = SZ_4K,
- .attach_dev = sun50i_iommu_attach_device,
- .detach_dev = sun50i_iommu_detach_device,
.device_group = sun50i_iommu_device_group,
.domain_alloc = sun50i_iommu_domain_alloc,
- .domain_free = sun50i_iommu_domain_free,
- .flush_iotlb_all = sun50i_iommu_flush_iotlb_all,
- .iotlb_sync = sun50i_iommu_iotlb_sync,
- .iova_to_phys = sun50i_iommu_iova_to_phys,
- .map = sun50i_iommu_map,
.of_xlate = sun50i_iommu_of_xlate,
.probe_device = sun50i_iommu_probe_device,
.release_device = sun50i_iommu_release_device,
- .unmap = sun50i_iommu_unmap,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = sun50i_iommu_attach_device,
+ .detach_dev = sun50i_iommu_detach_device,
+ .flush_iotlb_all = sun50i_iommu_flush_iotlb_all,
+ .iotlb_sync = sun50i_iommu_iotlb_sync,
+ .iova_to_phys = sun50i_iommu_iova_to_phys,
+ .map = sun50i_iommu_map,
+ .unmap = sun50i_iommu_unmap,
+ .free = sun50i_iommu_domain_free,
+ }
};
static void sun50i_iommu_report_fault(struct sun50i_iommu *iommu,
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index bbd287d19324..a6700a40a6f8 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -272,19 +272,21 @@ static void gart_iommu_sync(struct iommu_domain *domain,
static const struct iommu_ops gart_iommu_ops = {
.domain_alloc = gart_iommu_domain_alloc,
- .domain_free = gart_iommu_domain_free,
- .attach_dev = gart_iommu_attach_dev,
- .detach_dev = gart_iommu_detach_dev,
.probe_device = gart_iommu_probe_device,
.release_device = gart_iommu_release_device,
.device_group = generic_device_group,
- .map = gart_iommu_map,
- .unmap = gart_iommu_unmap,
- .iova_to_phys = gart_iommu_iova_to_phys,
.pgsize_bitmap = GART_IOMMU_PGSIZES,
.of_xlate = gart_iommu_of_xlate,
- .iotlb_sync_map = gart_iommu_sync_map,
- .iotlb_sync = gart_iommu_sync,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = gart_iommu_attach_dev,
+ .detach_dev = gart_iommu_detach_dev,
+ .map = gart_iommu_map,
+ .unmap = gart_iommu_unmap,
+ .iova_to_phys = gart_iommu_iova_to_phys,
+ .iotlb_sync_map = gart_iommu_sync_map,
+ .iotlb_sync = gart_iommu_sync,
+ .free = gart_iommu_domain_free,
+ }
};
int tegra_gart_suspend(struct gart_device *gart)
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 43df44f918a1..44c3716e16ee 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -963,17 +963,19 @@ static int tegra_smmu_of_xlate(struct device *dev,
static const struct iommu_ops tegra_smmu_ops = {
.domain_alloc = tegra_smmu_domain_alloc,
- .domain_free = tegra_smmu_domain_free,
- .attach_dev = tegra_smmu_attach_dev,
- .detach_dev = tegra_smmu_detach_dev,
.probe_device = tegra_smmu_probe_device,
.release_device = tegra_smmu_release_device,
.device_group = tegra_smmu_device_group,
- .map = tegra_smmu_map,
- .unmap = tegra_smmu_unmap,
- .iova_to_phys = tegra_smmu_iova_to_phys,
.of_xlate = tegra_smmu_of_xlate,
.pgsize_bitmap = SZ_4K,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = tegra_smmu_attach_dev,
+ .detach_dev = tegra_smmu_detach_dev,
+ .map = tegra_smmu_map,
+ .unmap = tegra_smmu_unmap,
+ .iova_to_phys = tegra_smmu_iova_to_phys,
+ .free = tegra_smmu_domain_free,
+ }
};
static void tegra_smmu_ahb_enable(void)
diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c
index f2aa34f57454..25be4b822aa0 100644
--- a/drivers/iommu/virtio-iommu.c
+++ b/drivers/iommu/virtio-iommu.c
@@ -1008,12 +1008,6 @@ static int viommu_of_xlate(struct device *dev, struct of_phandle_args *args)
static struct iommu_ops viommu_ops = {
.domain_alloc = viommu_domain_alloc,
- .domain_free = viommu_domain_free,
- .attach_dev = viommu_attach_dev,
- .map = viommu_map,
- .unmap = viommu_unmap,
- .iova_to_phys = viommu_iova_to_phys,
- .iotlb_sync = viommu_iotlb_sync,
.probe_device = viommu_probe_device,
.probe_finalize = viommu_probe_finalize,
.release_device = viommu_release_device,
@@ -1022,6 +1016,14 @@ static struct iommu_ops viommu_ops = {
.put_resv_regions = generic_iommu_put_resv_regions,
.of_xlate = viommu_of_xlate,
.owner = THIS_MODULE,
+ .default_domain_ops = &(const struct iommu_domain_ops) {
+ .attach_dev = viommu_attach_dev,
+ .map = viommu_map,
+ .unmap = viommu_unmap,
+ .iova_to_phys = viommu_iova_to_phys,
+ .iotlb_sync = viommu_iotlb_sync,
+ .free = viommu_domain_free,
+ }
};
static int viommu_init_vqs(struct viommu_dev *viommu)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 1ded6076a75c..9208eca4b0d1 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -37,6 +37,7 @@ struct iommu_group;
struct bus_type;
struct device;
struct iommu_domain;
+struct iommu_domain_ops;
struct notifier_block;
struct iommu_sva;
struct iommu_fault_event;
@@ -88,7 +89,7 @@ struct iommu_domain_geometry {
struct iommu_domain {
unsigned type;
- const struct iommu_ops *ops;
+ const struct iommu_domain_ops *ops;
unsigned long pgsize_bitmap; /* Bitmap of page sizes in use */
iommu_fault_handler_t handler;
void *handler_token;
@@ -192,26 +193,11 @@ struct iommu_iotlb_gather {
* struct iommu_ops - iommu ops and capabilities
* @capable: check capability
* @domain_alloc: allocate iommu domain
- * @domain_free: free iommu domain
- * @attach_dev: attach device to an iommu domain
- * @detach_dev: detach device from an iommu domain
- * @map: map a physically contiguous memory region to an iommu domain
- * @map_pages: map a physically contiguous set of pages of the same size to
- * an iommu domain.
- * @unmap: unmap a physically contiguous memory region from an iommu domain
- * @unmap_pages: unmap a number of pages of the same size from an iommu domain
- * @flush_iotlb_all: Synchronously flush all hardware TLBs for this domain
- * @iotlb_sync_map: Sync mappings created recently using @map to the hardware
- * @iotlb_sync: Flush all queued ranges from the hardware TLBs and empty flush
- * queue
- * @iova_to_phys: translate iova to physical address
* @probe_device: Add device to iommu driver handling
* @release_device: Remove device from iommu driver handling
* @probe_finalize: Do final setup work after the device is added to an IOMMU
* group and attached to the groups domain
* @device_group: find iommu group for a particular device
- * @enable_nesting: Enable nesting
- * @set_pgtable_quirks: Set io page table quirks (IO_PGTABLE_QUIRK_*)
* @get_resv_regions: Request list of reserved regions for a device
* @put_resv_regions: Free list of reserved regions for a device
* @of_xlate: add OF master IDs to iommu grouping
@@ -228,6 +214,7 @@ struct iommu_iotlb_gather {
* - IOMMU_DOMAIN_IDENTITY: must use an identity domain
* - IOMMU_DOMAIN_DMA: must use a dma domain
* - 0: use the default setting
+ * @default_domain_ops: the default ops for domains
* @pgsize_bitmap: bitmap of all possible supported page sizes
* @owner: Driver module providing these ops
*/
@@ -236,33 +223,11 @@ struct iommu_ops {
/* Domain allocation and freeing by the iommu driver */
struct iommu_domain *(*domain_alloc)(unsigned iommu_domain_type);
- void (*domain_free)(struct iommu_domain *);
- int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
- void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
- int (*map)(struct iommu_domain *domain, unsigned long iova,
- phys_addr_t paddr, size_t size, int prot, gfp_t gfp);
- int (*map_pages)(struct iommu_domain *domain, unsigned long iova,
- phys_addr_t paddr, size_t pgsize, size_t pgcount,
- int prot, gfp_t gfp, size_t *mapped);
- size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
- size_t size, struct iommu_iotlb_gather *iotlb_gather);
- size_t (*unmap_pages)(struct iommu_domain *domain, unsigned long iova,
- size_t pgsize, size_t pgcount,
- struct iommu_iotlb_gather *iotlb_gather);
- void (*flush_iotlb_all)(struct iommu_domain *domain);
- void (*iotlb_sync_map)(struct iommu_domain *domain, unsigned long iova,
- size_t size);
- void (*iotlb_sync)(struct iommu_domain *domain,
- struct iommu_iotlb_gather *iotlb_gather);
- phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
struct iommu_device *(*probe_device)(struct device *dev);
void (*release_device)(struct device *dev);
void (*probe_finalize)(struct device *dev);
struct iommu_group *(*device_group)(struct device *dev);
- int (*enable_nesting)(struct iommu_domain *domain);
- int (*set_pgtable_quirks)(struct iommu_domain *domain,
- unsigned long quirks);
/* Request/Free a list of reserved regions for a device */
void (*get_resv_regions)(struct device *dev, struct list_head *list);
@@ -288,10 +253,60 @@ struct iommu_ops {
int (*def_domain_type)(struct device *dev);
+ const struct iommu_domain_ops *default_domain_ops;
unsigned long pgsize_bitmap;
struct module *owner;
};
+/**
+ * struct iommu_domain_ops - domain specific operations
+ * @attach_dev: attach an iommu domain to a device
+ * @detach_dev: detach an iommu domain from a device
+ * @map: map a physically contiguous memory region to an iommu domain
+ * @map_pages: map a physically contiguous set of pages of the same size to
+ * an iommu domain.
+ * @unmap: unmap a physically contiguous memory region from an iommu domain
+ * @unmap_pages: unmap a number of pages of the same size from an iommu domain
+ * @flush_iotlb_all: Synchronously flush all hardware TLBs for this domain
+ * @iotlb_sync_map: Sync mappings created recently using @map to the hardware
+ * @iotlb_sync: Flush all queued ranges from the hardware TLBs and empty flush
+ * queue
+ * @iova_to_phys: translate iova to physical address
+ * @enable_nesting: Enable nesting
+ * @set_pgtable_quirks: Set io page table quirks (IO_PGTABLE_QUIRK_*)
+ * @free: Release the domain after use.
+ */
+struct iommu_domain_ops {
+ int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
+ void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
+
+ int (*map)(struct iommu_domain *domain, unsigned long iova,
+ phys_addr_t paddr, size_t size, int prot, gfp_t gfp);
+ int (*map_pages)(struct iommu_domain *domain, unsigned long iova,
+ phys_addr_t paddr, size_t pgsize, size_t pgcount,
+ int prot, gfp_t gfp, size_t *mapped);
+ size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
+ size_t size, struct iommu_iotlb_gather *iotlb_gather);
+ size_t (*unmap_pages)(struct iommu_domain *domain, unsigned long iova,
+ size_t pgsize, size_t pgcount,
+ struct iommu_iotlb_gather *iotlb_gather);
+
+ void (*flush_iotlb_all)(struct iommu_domain *domain);
+ void (*iotlb_sync_map)(struct iommu_domain *domain, unsigned long iova,
+ size_t size);
+ void (*iotlb_sync)(struct iommu_domain *domain,
+ struct iommu_iotlb_gather *iotlb_gather);
+
+ phys_addr_t (*iova_to_phys)(struct iommu_domain *domain,
+ dma_addr_t iova);
+
+ int (*enable_nesting)(struct iommu_domain *domain);
+ int (*set_pgtable_quirks)(struct iommu_domain *domain,
+ unsigned long quirks);
+
+ void (*free)(struct iommu_domain *domain);
+};
+
/**
* struct iommu_device - IOMMU core representation of one IOMMU hardware
* instance