On 06/14/2016 02:56, Bjorn Helgaas wrote:
I'm also a little confused about how Root Complex Integrated Endpoints
are supposed to use PTM, since they don't have an upstream bridge.
Maybe it has to do with an RCRB (Root Complex Register Block, spec
r3.1, sec 7.2.3)? I don't think Linux really has any support for that
(yet).
The spec (7.32.3 PTM Control Register) says:
For Root Complex Integrated Endpoints, system software must set this
field to the value reported in the Local Clock Granularity field by the
associated PTM Time Source.
I'm not familiar with RC integrated endpoints either. I'm guessing
whatever device 0, function 0 on the "bus"? Just copy the granularity
value over?
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
