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Subject[PATCH] PCI: Support SRIOV on Legacy EndPoint device
Date
Some AMD GPUs have hardware support for grapics SRIOV.
If the GPU has a display output then the GPU needs to support Legacy VGA operation.
If CLASS_CODE = VGA then the device should have a Port Type = Legacy EndPoint.
Therefore in order to enable SRIOV on a GPU with a display output LEGACY_END_POINT is supported as a valid Port Type.

Signed-off-by: Kelly Zytaruk <kelly.zytaruk@amd.com>
---
drivers/pci/iov.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 31f31d4..da4fbac 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -388,7 +388,8 @@ static int sriov_init(struct pci_dev *dev, int pos)
struct pci_dev *pdev;

if (pci_pcie_type(dev) != PCI_EXP_TYPE_RC_END &&
- pci_pcie_type(dev) != PCI_EXP_TYPE_ENDPOINT)
+ pci_pcie_type(dev) != PCI_EXP_TYPE_ENDPOINT &&
+ pci_pcie_type(dev) != PCI_EXP_TYPE_LEG_END)
return -ENODEV;

pci_read_config_word(dev, pos + PCI_SRIOV_CTRL, &ctrl);
--
1.7.10.4
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