diff options
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/iommu/arm-smmu.c | 9 | ||||
| -rw-r--r-- | drivers/iommu/exynos-iommu.c | 7 | ||||
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 9 | ||||
| -rw-r--r-- | drivers/iommu/io-pgtable-arm.c | 5 | ||||
| -rw-r--r-- | drivers/iommu/ipmmu-vmsa.c | 1 | ||||
| -rw-r--r-- | drivers/iommu/of_iommu.c | 10 | ||||
| -rw-r--r-- | drivers/iommu/omap-iommu.c | 7 | ||||
| -rw-r--r-- | drivers/iommu/rockchip-iommu.c | 7 |
9 files changed, 45 insertions, 12 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index baa0d9786f50..1ae4e547b419 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -23,6 +23,7 @@ config IOMMU_IO_PGTABLE config IOMMU_IO_PGTABLE_LPAE bool "ARMv7/v8 Long Descriptor Format" select IOMMU_IO_PGTABLE + depends on ARM || ARM64 || COMPILE_TEST help Enable support for the ARM long descriptor pagetable format. This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page @@ -63,6 +64,7 @@ config MSM_IOMMU bool "MSM IOMMU Support" depends on ARM depends on ARCH_MSM8X60 || ARCH_MSM8960 || COMPILE_TEST + depends on BROKEN select IOMMU_API help Support for the IOMMUs found on certain Qualcomm SOCs. diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index fc13dd56953e..a3adde6519f0 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1288,10 +1288,13 @@ static phys_addr_t arm_smmu_iova_to_phys(struct iommu_domain *domain, return 0; spin_lock_irqsave(&smmu_domain->pgtbl_lock, flags); - if (smmu_domain->smmu->features & ARM_SMMU_FEAT_TRANS_OPS) + if (smmu_domain->smmu->features & ARM_SMMU_FEAT_TRANS_OPS && + smmu_domain->stage == ARM_SMMU_DOMAIN_S1) { ret = arm_smmu_iova_to_phys_hard(domain, iova); - else + } else { ret = ops->iova_to_phys(ops, iova); + } + spin_unlock_irqrestore(&smmu_domain->pgtbl_lock, flags); return ret; @@ -1556,7 +1559,7 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu) return -ENODEV; } - if (smmu->version == 1 || (!(id & ID0_ATOSNS) && (id & ID0_S1TS))) { + if ((id & ID0_S1TS) && ((smmu->version == 1) || (id & ID0_ATOSNS))) { smmu->features |= ARM_SMMU_FEAT_TRANS_OPS; dev_notice(smmu->dev, "\taddress translation ops\n"); } diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 7ce52737c7a1..dc14fec4ede1 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -1186,8 +1186,15 @@ static const struct iommu_ops exynos_iommu_ops = { static int __init exynos_iommu_init(void) { + struct device_node *np; int ret; + np = of_find_matching_node(NULL, sysmmu_of_match); + if (!np) + return 0; + + of_node_put(np); + lv2table_kmem_cache = kmem_cache_create("exynos-iommu-lv2table", LV2TABLE_SIZE, LV2TABLE_SIZE, 0, NULL); if (!lv2table_kmem_cache) { diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index ae4c1a854e57..4fc1f8a7f98e 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -684,7 +684,7 @@ static struct intel_iommu *device_to_iommu(struct device *dev, u8 *bus, u8 *devf if (dev_is_pci(dev)) { pdev = to_pci_dev(dev); segment = pci_domain_nr(pdev->bus); - } else if (ACPI_COMPANION(dev)) + } else if (has_acpi_companion(dev)) dev = &ACPI_COMPANION(dev)->dev; rcu_read_lock(); @@ -1742,9 +1742,8 @@ static int domain_init(struct dmar_domain *domain, int guest_width) static void domain_exit(struct dmar_domain *domain) { - struct dmar_drhd_unit *drhd; - struct intel_iommu *iommu; struct page *freelist = NULL; + int i; /* Domain 0 is reserved, so dont process it */ if (!domain) @@ -1764,8 +1763,8 @@ static void domain_exit(struct dmar_domain *domain) /* clear attached or cached domains */ rcu_read_lock(); - for_each_active_iommu(iommu, drhd) - iommu_detach_domain(domain, iommu); + for_each_set_bit(i, domain->iommu_bmp, g_num_of_iommus) + iommu_detach_domain(domain, g_iommus[i]); rcu_read_unlock(); dma_free_pagelist(freelist); diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index 5a500edf00cc..b610a8dee238 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -56,7 +56,8 @@ ((((d)->levels - ((l) - ARM_LPAE_START_LVL(d) + 1)) \ * (d)->bits_per_level) + (d)->pg_shift) -#define ARM_LPAE_PAGES_PER_PGD(d) ((d)->pgd_size >> (d)->pg_shift) +#define ARM_LPAE_PAGES_PER_PGD(d) \ + DIV_ROUND_UP((d)->pgd_size, 1UL << (d)->pg_shift) /* * Calculate the index at level l used to map virtual address a using the @@ -66,7 +67,7 @@ ((l) == ARM_LPAE_START_LVL(d) ? ilog2(ARM_LPAE_PAGES_PER_PGD(d)) : 0) #define ARM_LPAE_LVL_IDX(a,l,d) \ - (((a) >> ARM_LPAE_LVL_SHIFT(l,d)) & \ + (((u64)(a) >> ARM_LPAE_LVL_SHIFT(l,d)) & \ ((1 << ((d)->bits_per_level + ARM_LPAE_PGD_IDX(l,d))) - 1)) /* Calculate the block/page mapping size at level l for pagetable in d. */ diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 10186cac7716..bc39bdf7b99b 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -851,6 +851,7 @@ static int ipmmu_remove(struct platform_device *pdev) static const struct of_device_id ipmmu_of_ids[] = { { .compatible = "renesas,ipmmu-vmsa", }, + { } }; static struct platform_driver ipmmu_driver = { diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index af1dc6a1c0a1..43429ab62228 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -133,19 +133,25 @@ struct iommu_ops *of_iommu_get_ops(struct device_node *np) return ops; } -struct iommu_ops *of_iommu_configure(struct device *dev) +struct iommu_ops *of_iommu_configure(struct device *dev, + struct device_node *master_np) { struct of_phandle_args iommu_spec; struct device_node *np; struct iommu_ops *ops = NULL; int idx = 0; + if (dev_is_pci(dev)) { + dev_err(dev, "IOMMU is currently not supported for PCI\n"); + return NULL; + } + /* * We don't currently walk up the tree looking for a parent IOMMU. * See the `Notes:' section of * Documentation/devicetree/bindings/iommu/iommu.txt */ - while (!of_parse_phandle_with_args(dev->of_node, "iommus", + while (!of_parse_phandle_with_args(master_np, "iommus", "#iommu-cells", idx, &iommu_spec)) { np = iommu_spec.np; diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index f59f857b702e..a4ba851825c2 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1376,6 +1376,13 @@ static int __init omap_iommu_init(void) struct kmem_cache *p; const unsigned long flags = SLAB_HWCACHE_ALIGN; size_t align = 1 << 10; /* L2 pagetable alignement */ + struct device_node *np; + + np = of_find_matching_node(NULL, omap_iommu_of_match); + if (!np) + return 0; + + of_node_put(np); p = kmem_cache_create("iopte_cache", IOPTE_TABLE_SIZE, align, flags, iopte_cachep_ctor); diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index 6a8b1ec4a48a..9f74fddcd304 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -1015,8 +1015,15 @@ static struct platform_driver rk_iommu_driver = { static int __init rk_iommu_init(void) { + struct device_node *np; int ret; + np = of_find_matching_node(NULL, rk_iommu_dt_ids); + if (!np) + return 0; + + of_node_put(np); + ret = bus_set_iommu(&platform_bus_type, &rk_iommu_ops); if (ret) return ret; |