search for: is_thunderbolt

...olt related device detection and uses the changes to change the behavior of pcie_bandwidth_available(). v2->v3: * Stop lumping all thunderbolt VSEC and USB4 devices together, introduce is_virtual_link instead * Drop unnecessary patches Mario Limonciello (7): drm/nouveau: Switch from pci_is_thunderbolt_attached() to dev_is_removable() drm/radeon: Switch from pci_is_thunderbolt_attached() to dev_is_removable() PCI: Drop pci_is_thunderbolt_attached() PCI: pciehp: Move check for is_thunderbolt into a quirk PCI: ACPI: Detect PCIe root ports that are used for tunneling PCI: Split up...

Detect on probe whether a PCI device is part of a Thunderbolt controller. Intel uses a Vendor-Specific Extended Capability (VSEC) with ID 0x1234 on such devices. Detect presence of this VSEC and cache it in a newly added is_thunderbolt bit in struct pci_dev. Add a helper to check whether a given PCI device is situated on a Thunderbolt daisy chain. The necessity arises from the following: * To power off Thunderbolt controllers on Macs even if their BIOS is older than 2015, their PCIe ports need to be whitelisted for runtime...

...b 24, 2017 at 08:19:45PM +0100, Lukas Wunner wrote: > Detect on probe whether a PCI device is part of a Thunderbolt controller. > > Intel uses a Vendor-Specific Extended Capability (VSEC) with ID 0x1234 > on such devices. Detect presence of this VSEC and cache it in a newly > added is_thunderbolt bit in struct pci_dev. Add a helper to check > whether a given PCI device is situated on a Thunderbolt daisy chain. > > The necessity arises from the following: > > * To power off Thunderbolt controllers on Macs even if their BIOS is > older than 2015, their PCIe ports need t...

Fix Thunderbolt-related issues in apple-gmux and vga_switcheroo: Patch [1/5] ("Recognize Thunderbolt devices") has already been subjected to a fair amount of scrutiny over at linux-pci@, I've submitted it 5 times total since May 2016. With luck it may be in ack-able shape now. Patch [2/5] amends apple-gmux to handle combined DP/Thunderbolt ports properly on newer MacBook Pros.

...45PM +0100, Lukas Wunner wrote: > > --- a/include/linux/pci.h > > +++ b/include/linux/pci.h > > @@ -358,6 +358,7 @@ struct pci_dev { > > unsigned int is_virtfn:1; > > unsigned int reset_fn:1; > > unsigned int is_hotplug_bridge:1; > > + unsigned int is_thunderbolt:1; /* Thunderbolt controller */ > > I'm not really keen on having this in the PCI core because the core > doesn't need this or even know what it means. > > pci_find_next_ext_capability() is available to drivers, and if > Thunderbolt-connectedness is useful information to...