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| author | Yinghai <yinghai.lu@oracle.com> | 2010-04-09 01:07:55 +0100 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2010-04-09 17:00:00 +0100 |
| commit | dda565492776b7dff5f8507298d868745e734aab (patch) | |
| tree | 0e93c6d3cad304b860fa8b8715a3dbd03832b2ae | |
| parent | 680a7524622356f5476e8fad2fe32b2b68b432c0 (diff) | |
| download | kernel_samsung_smdk4412-dda565492776b7dff5f8507298d868745e734aab.zip kernel_samsung_smdk4412-dda565492776b7dff5f8507298d868745e734aab.tar.gz kernel_samsung_smdk4412-dda565492776b7dff5f8507298d868745e734aab.tar.bz2 | |
intel-iommu: use physfn to search drhd for VF
When virtfn is used, we should use physfn to find correct drhd
-v2: add pci_physfn() Suggested by Roland Dreier <rdreier@cisco.com>
do can remove ifdef in dmar.c
-v3: Chris pointed out we need that for dma_find_matched_atsr_unit too
also change dmar_pci_device_match() static
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Roland Dreier <rdreier@cisco.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| -rw-r--r-- | drivers/pci/dmar.c | 6 | ||||
| -rw-r--r-- | include/linux/pci.h | 10 |
2 files changed, 15 insertions, 1 deletions
diff --git a/drivers/pci/dmar.c b/drivers/pci/dmar.c index d439917..edc5f00 100644 --- a/drivers/pci/dmar.c +++ b/drivers/pci/dmar.c @@ -309,6 +309,8 @@ int dmar_find_matched_atsr_unit(struct pci_dev *dev) struct acpi_dmar_atsr *atsr; struct dmar_atsr_unit *atsru; + dev = pci_physfn(dev); + list_for_each_entry(atsru, &dmar_atsr_units, list) { atsr = container_of(atsru->hdr, struct acpi_dmar_atsr, header); if (atsr->segment == pci_domain_nr(dev->bus)) @@ -507,7 +509,7 @@ parse_dmar_table(void) return ret; } -int dmar_pci_device_match(struct pci_dev *devices[], int cnt, +static int dmar_pci_device_match(struct pci_dev *devices[], int cnt, struct pci_dev *dev) { int index; @@ -530,6 +532,8 @@ dmar_find_matched_drhd_unit(struct pci_dev *dev) struct dmar_drhd_unit *dmaru = NULL; struct acpi_dmar_hardware_unit *drhd; + dev = pci_physfn(dev); + list_for_each_entry(dmaru, &dmar_drhd_units, list) { drhd = container_of(dmaru->hdr, struct acpi_dmar_hardware_unit, diff --git a/include/linux/pci.h b/include/linux/pci.h index a788fa1..a327322 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -334,6 +334,16 @@ struct pci_dev { #endif }; +static inline struct pci_dev *pci_physfn(struct pci_dev *dev) +{ +#ifdef CONFIG_PCI_IOV + if (dev->is_virtfn) + dev = dev->physfn; +#endif + + return dev; +} + extern struct pci_dev *alloc_pci_dev(void); #define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list) |