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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-08-07 13:11:22 +0000
commitb20732900e4636a467c0183a47f7396700f5f743 (patch)
tree42f079ff82e701ebcb76829974b4caca3e5b6798 /drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
parentAdding upstream version 6.8.12. (diff)
downloadlinux-b20732900e4636a467c0183a47f7396700f5f743.tar.xz
linux-b20732900e4636a467c0183a47f7396700f5f743.zip
Adding upstream version 6.9.7.upstream/6.9.7
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c')
-rw-r--r--drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c22
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
index 4a27fbdb2d..2cd433a9c8 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c
@@ -10,7 +10,6 @@
#include <linux/slab.h>
#include "arm-smmu-v3.h"
-#include "../../iommu-sva.h"
#include "../../io-pgtable-arm.h"
struct arm_smmu_mmu_notifier {
@@ -364,7 +363,13 @@ static int __arm_smmu_sva_bind(struct device *dev, ioasid_t pasid,
struct arm_smmu_bond *bond;
struct arm_smmu_master *master = dev_iommu_priv_get(dev);
struct iommu_domain *domain = iommu_get_domain_for_dev(dev);
- struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
+ struct arm_smmu_domain *smmu_domain;
+
+ if (!(domain->type & __IOMMU_DOMAIN_PAGING))
+ return -ENODEV;
+ smmu_domain = to_smmu_domain(domain);
+ if (smmu_domain->stage != ARM_SMMU_DOMAIN_S1)
+ return -ENODEV;
if (!master || !master->sva_enabled)
return -ENODEV;
@@ -470,7 +475,6 @@ bool arm_smmu_master_sva_enabled(struct arm_smmu_master *master)
static int arm_smmu_master_sva_enable_iopf(struct arm_smmu_master *master)
{
- int ret;
struct device *dev = master->dev;
/*
@@ -483,16 +487,7 @@ static int arm_smmu_master_sva_enable_iopf(struct arm_smmu_master *master)
if (!master->iopf_enabled)
return -EINVAL;
- ret = iopf_queue_add_device(master->smmu->evtq.iopf, dev);
- if (ret)
- return ret;
-
- ret = iommu_register_device_fault_handler(dev, iommu_queue_iopf, dev);
- if (ret) {
- iopf_queue_remove_device(master->smmu->evtq.iopf, dev);
- return ret;
- }
- return 0;
+ return iopf_queue_add_device(master->smmu->evtq.iopf, dev);
}
static void arm_smmu_master_sva_disable_iopf(struct arm_smmu_master *master)
@@ -502,7 +497,6 @@ static void arm_smmu_master_sva_disable_iopf(struct arm_smmu_master *master)
if (!master->iopf_enabled)
return;
- iommu_unregister_device_fault_handler(dev);
iopf_queue_remove_device(master->smmu->evtq.iopf, dev);
}