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authorJoerg Roedel <jroedel@suse.de>2017-02-01 15:23:08 +0300
committerJoerg Roedel <jroedel@suse.de>2017-02-10 15:44:57 +0300
commitb0119e870837dcd15a207b4701542ebac5d19b45 (patch)
tree07c547fed49f739a7d9b4a64c8163d9908db48e2 /drivers/iommu/dmar.c
parentc09e22d5370739e16463c113525df51b5980b1d5 (diff)
downloadlinux-b0119e870837dcd15a207b4701542ebac5d19b45.tar.xz
iommu: Introduce new 'struct iommu_device'
This struct represents one hardware iommu in the iommu core code. For now it only has the iommu-ops associated with it, but that will be extended soon. The register/unregister interface is also added, as well as making use of it in the Intel and AMD IOMMU drivers. Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/dmar.c')
-rw-r--r--drivers/iommu/dmar.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index a88576d50740..83fee0e8cf43 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -74,6 +74,8 @@ static unsigned long dmar_seq_ids[BITS_TO_LONGS(DMAR_UNITS_SUPPORTED)];
static int alloc_iommu(struct dmar_drhd_unit *drhd);
static void free_iommu(struct intel_iommu *iommu);
+extern const struct iommu_ops intel_iommu_ops;
+
static void dmar_register_drhd_unit(struct dmar_drhd_unit *drhd)
{
/*
@@ -1084,6 +1086,12 @@ static int alloc_iommu(struct dmar_drhd_unit *drhd)
err = PTR_ERR(iommu->iommu_dev);
goto err_unmap;
}
+
+ iommu_device_set_ops(&iommu->iommu, &intel_iommu_ops);
+
+ err = iommu_device_register(&iommu->iommu);
+ if (err)
+ goto err_unmap;
}
drhd->iommu = iommu;
@@ -1102,6 +1110,7 @@ error:
static void free_iommu(struct intel_iommu *iommu)
{
iommu_device_destroy(iommu->iommu_dev);
+ iommu_device_unregister(&iommu->iommu);
if (iommu->irq) {
if (iommu->pr_irq) {