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| author | Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> | 2022-07-06 14:38:19 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-07-07 10:37:50 +0300 |
| commit | bf87972ca664863dcfd38ab581589c1d87677cb6 (patch) | |
| tree | 0d48c0d94163ab6d534ff4a8e2eb5de3e77355e3 /drivers/iommu/amd/amd_iommu_types.h | |
| parent | a3cf6ab35751ea77a2bd47636dca761e835b282d (diff) | |
| download | linux-bf87972ca664863dcfd38ab581589c1d87677cb6.tar.xz | |
iommu/amd: Introduce get_device_sbdf_id() helper function
Current get_device_id() only provide 16-bit PCI device ID (i.e. BDF).
With multiple PCI segment support, we need to extend the helper function
to include PCI segment ID.
So, introduce a new helper function get_device_sbdf_id() to replace
the current get_pci_device_id().
Co-developed-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/20220706113825.25582-30-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/amd_iommu_types.h')
| -rw-r--r-- | drivers/iommu/amd/amd_iommu_types.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/iommu/amd/amd_iommu_types.h b/drivers/iommu/amd/amd_iommu_types.h index 65b02e2ae28f..ea238e8e6c99 100644 --- a/drivers/iommu/amd/amd_iommu_types.h +++ b/drivers/iommu/amd/amd_iommu_types.h @@ -456,6 +456,8 @@ extern struct kmem_cache *amd_iommu_irq_cache; #define PCI_SBDF_TO_SEGID(sbdf) (((sbdf) >> 16) & 0xffff) #define PCI_SBDF_TO_DEVID(sbdf) ((sbdf) & 0xffff) +#define PCI_SEG_DEVID_TO_SBDF(seg, devid) ((((u32)(seg) & 0xffff) << 16) | \ + ((devid) & 0xffff)) /* Make iterating over all pci segment easier */ #define for_each_pci_segment(pci_seg) \ |