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author | Joerg Roedel <jroedel@suse.de> | 2014-08-05 14:48:10 (GMT) |
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committer | Joerg Roedel <jroedel@suse.de> | 2014-08-26 09:37:42 (GMT) |
commit | f251e187f2949c690fc13a91df7b873a6b5be671 (patch) | |
tree | 66f9b0e5f7cb1633791cef7426bc505c6e50d1a2 /drivers/iommu/amd_iommu.c | |
parent | 50917e265ebd2ea33bc34b22b3981f1e88415eae (diff) | |
download | linux-f251e187f2949c690fc13a91df7b873a6b5be671.tar.xz |
iommu/amd: Keep a list of devices in an alias group
Some broken devices might use any request-id from the alias
group, so we need to set a DTE entry for every device in
there. This patch adds creation of those lists.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
-rw-r--r-- | drivers/iommu/amd_iommu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index fe6d7cc..8a15256 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -93,6 +93,7 @@ static struct dma_map_ops amd_iommu_dma_ops; struct iommu_dev_data { struct list_head list; /* For domain->dev_list */ struct list_head dev_data_list; /* For global dev_data_list */ + struct list_head alias_list; /* Link alias-groups together */ struct iommu_dev_data *alias_data;/* The alias dev_data */ struct protection_domain *domain; /* Domain the device is bound to */ atomic_t bind; /* Domain attach reference count */ @@ -135,6 +136,8 @@ static struct iommu_dev_data *alloc_dev_data(u16 devid) if (!dev_data) return NULL; + INIT_LIST_HEAD(&dev_data->alias_list); + dev_data->devid = devid; atomic_set(&dev_data->bind, 0); @@ -383,6 +386,9 @@ static int iommu_init_device(struct device *dev) return -ENOTSUPP; } dev_data->alias_data = alias_data; + + /* Add device to the alias_list */ + list_add(&dev_data->alias_list, &alias_data->alias_list); } ret = init_iommu_group(dev); |