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| author | Bjorn Helgaas <bhelgaas@google.com> | 2013-01-04 20:10:37 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-02-08 04:54:30 +0100 |
| commit | f8acf6f4c8fe1fd4de1f669ac6a3c71e89f13523 (patch) | |
| tree | dd465c57bbefe36df3b984e07395620c5ef01e2a /kernel | |
| parent | drm/pci: Use the standard #defines for PCIe Link Capability bits (diff) | |
| download | linux-f8acf6f4c8fe1fd4de1f669ac6a3c71e89f13523.tar.xz linux-f8acf6f4c8fe1fd4de1f669ac6a3c71e89f13523.zip | |
drm/pci: Set all supported speeds in speed cap mask for pre-3.0 devices
For devices that conform to PCIe r3.0 and have a Link Capabilities 2
register, we test and report every bit in the Supported Link Speeds Vector
field. For a device that supports both 2.5GT/s and 5.0GT/s, we set both
DRM_PCIE_SPEED_25 and DRM_PCIE_SPEED_50 in the returned mask.
For pre-r3.0 devices, the Link Capabilities 0010b encoding
(PCI_EXP_LNKCAP_SLS_5_0GB) means that both 5.0GT/s and 2.5GT/s are
supported, so set both DRM_PCIE_SPEED_25 and DRM_PCIE_SPEED_50 in this
case as well.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions