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-rw-r--r--drivers/iommu/amd_iommu.c11
-rw-r--r--drivers/iommu/amd_iommu_init.c6
-rw-r--r--drivers/iommu/amd_iommu_types.h2
-rw-r--r--drivers/iommu/tegra-smmu.c4
-rw-r--r--lib/dma-debug.c4
5 files changed, 18 insertions, 9 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index a2e418cba0ff..625626391f2d 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -83,6 +83,8 @@ static struct iommu_ops amd_iommu_ops;
static ATOMIC_NOTIFIER_HEAD(ppr_notifier);
int amd_iommu_max_glx_val = -1;
+static struct dma_map_ops amd_iommu_dma_ops;
+
/*
* general struct to manage commands send to an IOMMU
*/
@@ -402,7 +404,7 @@ static void amd_iommu_stats_init(void)
return;
de_fflush = debugfs_create_bool("fullflush", 0444, stats_dir,
- (u32 *)&amd_iommu_unmap_flush);
+ &amd_iommu_unmap_flush);
amd_iommu_stats_add(&compl_wait);
amd_iommu_stats_add(&cnt_map_single);
@@ -2267,6 +2269,13 @@ static int device_change_notifier(struct notifier_block *nb,
list_add_tail(&dma_domain->list, &iommu_pd_list);
spin_unlock_irqrestore(&iommu_pd_list_lock, flags);
+ dev_data = get_dev_data(dev);
+
+ if (!dev_data->passthrough)
+ dev->archdata.dma_ops = &amd_iommu_dma_ops;
+ else
+ dev->archdata.dma_ops = &nommu_dma_ops;
+
break;
case BUS_NOTIFY_DEL_DEVICE:
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 542024ba6dba..a33612f3206f 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -129,7 +129,7 @@ u16 amd_iommu_last_bdf; /* largest PCI device id we have
to handle */
LIST_HEAD(amd_iommu_unity_map); /* a list of required unity mappings
we find in ACPI */
-bool amd_iommu_unmap_flush; /* if true, flush on every unmap */
+u32 amd_iommu_unmap_flush; /* if true, flush on every unmap */
LIST_HEAD(amd_iommu_list); /* list of all AMD IOMMUs in the
system */
@@ -1641,6 +1641,8 @@ static int __init amd_iommu_init(void)
amd_iommu_init_api();
+ x86_platform.iommu_shutdown = disable_iommus;
+
if (iommu_pass_through)
goto out;
@@ -1649,8 +1651,6 @@ static int __init amd_iommu_init(void)
else
printk(KERN_INFO "AMD-Vi: Lazy IO/TLB flushing enabled\n");
- x86_platform.iommu_shutdown = disable_iommus;
-
out:
return ret;
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 24355559a2ad..c1b1d489817e 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -652,7 +652,7 @@ extern unsigned long *amd_iommu_pd_alloc_bitmap;
* If true, the addresses will be flushed on unmap time, not when
* they are reused
*/
-extern bool amd_iommu_unmap_flush;
+extern u32 amd_iommu_unmap_flush;
/* Smallest number of PASIDs supported by any IOMMU in the system */
extern u32 amd_iommu_max_pasids;
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index ecd679043d77..3f3d09d560ea 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -550,13 +550,13 @@ static int alloc_pdir(struct smmu_as *as)
return 0;
as->pte_count = devm_kzalloc(smmu->dev,
- sizeof(as->pte_count[0]) * SMMU_PDIR_COUNT, GFP_KERNEL);
+ sizeof(as->pte_count[0]) * SMMU_PDIR_COUNT, GFP_ATOMIC);
if (!as->pte_count) {
dev_err(smmu->dev,
"failed to allocate smmu_device PTE cunters\n");
return -ENOMEM;
}
- as->pdir_page = alloc_page(GFP_KERNEL | __GFP_DMA);
+ as->pdir_page = alloc_page(GFP_ATOMIC | __GFP_DMA);
if (!as->pdir_page) {
dev_err(smmu->dev,
"failed to allocate smmu_device page directory\n");
diff --git a/lib/dma-debug.c b/lib/dma-debug.c
index 518aea714d21..66ce41489133 100644
--- a/lib/dma-debug.c
+++ b/lib/dma-debug.c
@@ -78,7 +78,7 @@ static LIST_HEAD(free_entries);
static DEFINE_SPINLOCK(free_entries_lock);
/* Global disable flag - will be set in case of an error */
-static bool global_disable __read_mostly;
+static u32 global_disable __read_mostly;
/* Global error count */
static u32 error_count;
@@ -657,7 +657,7 @@ static int dma_debug_fs_init(void)
global_disable_dent = debugfs_create_bool("disabled", 0444,
dma_debug_dent,
- (u32 *)&global_disable);
+ &global_disable);
if (!global_disable_dent)
goto out_err;