diff options
author | Weidong Han <weidong.han@intel.com> | 2008-12-07 20:17:15 -0500 |
---|---|---|
committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-01-03 08:02:17 -0500 |
commit | 3b5410e735b093060b96664230c6f9f4fe80b251 (patch) | |
tree | c22013c6b7a8524ff786243a6be89a81dbab7b2d /drivers/pci/intel-iommu.c | |
parent | d71a2f33ac466a437f316e7bb024d0175a7f3cd9 (diff) |
change P2P domain flags
Signed-off-by: Weidong Han <weidong.han@intel.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/pci/intel-iommu.c')
-rw-r--r-- | drivers/pci/intel-iommu.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 65aa1d427f4..22ad8851b3e 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c | |||
@@ -200,6 +200,9 @@ static inline bool dma_pte_present(struct dma_pte *pte) | |||
200 | return (pte->val & 3) != 0; | 200 | return (pte->val & 3) != 0; |
201 | } | 201 | } |
202 | 202 | ||
203 | /* devices under the same p2p bridge are owned in one domain */ | ||
204 | #define DOMAIN_FLAG_P2P_MULTIPLE_DEVICES (1 < 0) | ||
205 | |||
203 | struct dmar_domain { | 206 | struct dmar_domain { |
204 | int id; /* domain id */ | 207 | int id; /* domain id */ |
205 | struct intel_iommu *iommu; /* back pointer to owning iommu */ | 208 | struct intel_iommu *iommu; /* back pointer to owning iommu */ |
@@ -214,8 +217,7 @@ struct dmar_domain { | |||
214 | /* adjusted guest address width, 0 is level 2 30-bit */ | 217 | /* adjusted guest address width, 0 is level 2 30-bit */ |
215 | int agaw; | 218 | int agaw; |
216 | 219 | ||
217 | #define DOMAIN_FLAG_MULTIPLE_DEVICES 1 | 220 | int flags; /* flags to find out type of domain */ |
218 | int flags; | ||
219 | }; | 221 | }; |
220 | 222 | ||
221 | /* PCI domain-device relationship */ | 223 | /* PCI domain-device relationship */ |
@@ -1574,7 +1576,7 @@ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw) | |||
1574 | info->dev = NULL; | 1576 | info->dev = NULL; |
1575 | info->domain = domain; | 1577 | info->domain = domain; |
1576 | /* This domain is shared by devices under p2p bridge */ | 1578 | /* This domain is shared by devices under p2p bridge */ |
1577 | domain->flags |= DOMAIN_FLAG_MULTIPLE_DEVICES; | 1579 | domain->flags |= DOMAIN_FLAG_P2P_MULTIPLE_DEVICES; |
1578 | 1580 | ||
1579 | /* pcie-to-pci bridge already has a domain, uses it */ | 1581 | /* pcie-to-pci bridge already has a domain, uses it */ |
1580 | found = NULL; | 1582 | found = NULL; |