diff options
Diffstat (limited to 'drivers/iommu')
-rw-r--r-- | drivers/iommu/Kconfig | 2 | ||||
-rw-r--r-- | drivers/iommu/intel/iommu.c | 10 | ||||
-rw-r--r-- | drivers/iommu/intel/irq_remapping.c | 8 | ||||
-rw-r--r-- | drivers/iommu/ipmmu-vmsa.c | 1 | ||||
-rw-r--r-- | drivers/iommu/of_iommu.c | 81 |
5 files changed, 59 insertions, 43 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index b0f308cb7f7c..b622af72448f 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -97,6 +97,7 @@ config OF_IOMMU # IOMMU-agnostic DMA-mapping layer config IOMMU_DMA bool + select DMA_OPS select IOMMU_API select IOMMU_IOVA select IRQ_MSI_IOMMU @@ -183,6 +184,7 @@ config DMAR_TABLE config INTEL_IOMMU bool "Support for Intel IOMMU using DMA Remapping Devices" depends on PCI_MSI && ACPI && (X86 || IA64) + select DMA_OPS select IOMMU_API select IOMMU_IOVA select NEED_DMA_MAP_STATE diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index d759e7234e98..237a470e1e9c 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -2236,7 +2236,7 @@ static int __domain_mapping(struct dmar_domain *domain, unsigned long iov_pfn, unsigned long nr_pages, int prot) { struct dma_pte *first_pte = NULL, *pte = NULL; - phys_addr_t uninitialized_var(pteval); + phys_addr_t pteval; unsigned long sg_res = 0; unsigned int largepage_lvl = 0; unsigned long lvl_pages = 0; @@ -2560,7 +2560,7 @@ static struct dmar_domain *dmar_insert_one_dev_info(struct intel_iommu *iommu, } if (info->ats_supported && ecap_prs(iommu->ecap) && - pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI)) + pci_pri_supported(pdev)) info->pri_supported = 1; } } @@ -4738,12 +4738,12 @@ const struct attribute_group *intel_iommu_groups[] = { NULL, }; -static inline bool has_untrusted_dev(void) +static inline bool has_external_pci(void) { struct pci_dev *pdev = NULL; for_each_pci_dev(pdev) - if (pdev->untrusted) + if (pdev->external_facing) return true; return false; @@ -4751,7 +4751,7 @@ static inline bool has_untrusted_dev(void) static int __init platform_optin_force_iommu(void) { - if (!dmar_platform_optin() || no_platform_optin || !has_untrusted_dev()) + if (!dmar_platform_optin() || no_platform_optin || !has_external_pci()) return 0; if (no_iommu || dmar_disabled) diff --git a/drivers/iommu/intel/irq_remapping.c b/drivers/iommu/intel/irq_remapping.c index 3cf9d5706076..23583b0e66a5 100644 --- a/drivers/iommu/intel/irq_remapping.c +++ b/drivers/iommu/intel/irq_remapping.c @@ -629,13 +629,21 @@ out_free_table: static void intel_teardown_irq_remapping(struct intel_iommu *iommu) { + struct fwnode_handle *fn; + if (iommu && iommu->ir_table) { if (iommu->ir_msi_domain) { + fn = iommu->ir_msi_domain->fwnode; + irq_domain_remove(iommu->ir_msi_domain); + irq_domain_free_fwnode(fn); iommu->ir_msi_domain = NULL; } if (iommu->ir_domain) { + fn = iommu->ir_domain->fwnode; + irq_domain_remove(iommu->ir_domain); + irq_domain_free_fwnode(fn); iommu->ir_domain = NULL; } free_pages((unsigned long)iommu->ir_table->base, diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 4c2972f3153b..6de86e73dfc3 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -28,7 +28,6 @@ #if defined(CONFIG_ARM) && !defined(CONFIG_IOMMU_DMA) #include <asm/dma-iommu.h> -#include <asm/pgalloc.h> #else #define arm_iommu_create_mapping(...) NULL #define arm_iommu_attach_device(...) -ENODEV diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index 20738aacac89..e505b9130a1c 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -118,46 +118,66 @@ static int of_iommu_xlate(struct device *dev, return ret; } -struct of_pci_iommu_alias_info { - struct device *dev; - struct device_node *np; -}; - -static int of_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) +static int of_iommu_configure_dev_id(struct device_node *master_np, + struct device *dev, + const u32 *id) { - struct of_pci_iommu_alias_info *info = data; struct of_phandle_args iommu_spec = { .args_count = 1 }; int err; - err = of_map_rid(info->np, alias, "iommu-map", "iommu-map-mask", - &iommu_spec.np, iommu_spec.args); + err = of_map_id(master_np, *id, "iommu-map", + "iommu-map-mask", &iommu_spec.np, + iommu_spec.args); if (err) return err == -ENODEV ? NO_IOMMU : err; - err = of_iommu_xlate(info->dev, &iommu_spec); + err = of_iommu_xlate(dev, &iommu_spec); of_node_put(iommu_spec.np); return err; } -static int of_fsl_mc_iommu_init(struct fsl_mc_device *mc_dev, - struct device_node *master_np) +static int of_iommu_configure_dev(struct device_node *master_np, + struct device *dev) { - struct of_phandle_args iommu_spec = { .args_count = 1 }; - int err; - - err = of_map_rid(master_np, mc_dev->icid, "iommu-map", - "iommu-map-mask", &iommu_spec.np, - iommu_spec.args); - if (err) - return err == -ENODEV ? NO_IOMMU : err; + struct of_phandle_args iommu_spec; + int err = NO_IOMMU, idx = 0; + + while (!of_parse_phandle_with_args(master_np, "iommus", + "#iommu-cells", + idx, &iommu_spec)) { + err = of_iommu_xlate(dev, &iommu_spec); + of_node_put(iommu_spec.np); + idx++; + if (err) + break; + } - err = of_iommu_xlate(&mc_dev->dev, &iommu_spec); - of_node_put(iommu_spec.np); return err; } +struct of_pci_iommu_alias_info { + struct device *dev; + struct device_node *np; +}; + +static int of_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) +{ + struct of_pci_iommu_alias_info *info = data; + u32 input_id = alias; + + return of_iommu_configure_dev_id(info->np, info->dev, &input_id); +} + +static int of_iommu_configure_device(struct device_node *master_np, + struct device *dev, const u32 *id) +{ + return (id) ? of_iommu_configure_dev_id(master_np, dev, id) : + of_iommu_configure_dev(master_np, dev); +} + const struct iommu_ops *of_iommu_configure(struct device *dev, - struct device_node *master_np) + struct device_node *master_np, + const u32 *id) { const struct iommu_ops *ops = NULL; struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); @@ -188,21 +208,8 @@ const struct iommu_ops *of_iommu_configure(struct device *dev, pci_request_acs(); err = pci_for_each_dma_alias(to_pci_dev(dev), of_pci_iommu_init, &info); - } else if (dev_is_fsl_mc(dev)) { - err = of_fsl_mc_iommu_init(to_fsl_mc_device(dev), master_np); } else { - struct of_phandle_args iommu_spec; - int idx = 0; - - while (!of_parse_phandle_with_args(master_np, "iommus", - "#iommu-cells", - idx, &iommu_spec)) { - err = of_iommu_xlate(dev, &iommu_spec); - of_node_put(iommu_spec.np); - idx++; - if (err) - break; - } + err = of_iommu_configure_device(master_np, dev, id); fwspec = dev_iommu_fwspec_get(dev); if (!err && fwspec) |