From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: "Timur Kristóf" <timur.kristof@gmail.com>
Cc: michael.jamet@intel.com, dri-devel@lists.freedesktop.org
Subject: Re: Missing Thunderbolt 3 PCI-E atomics support
Date: Thu, 14 Mar 2019 19:40:34 +0200 [thread overview]
Message-ID: <20190314174034.GC3622@lahna.fi.intel.com> (raw)
In-Reply-To: <14bb183e6de7fb324954c56e9cae91391f8d7f4c.camel@gmail.com>
On Thu, Mar 14, 2019 at 06:26:00PM +0100, Timur Kristóf wrote:
> I know atomics is a PCIe feature, but in this case the PCIe goes
> through TB3, so I would assume it has something to do with it.
Does it work if you plug the graphics card directly to the PCIe slot?
> Here is the output of 'lspci -vv':
> https://pastebin.com/Qt5RUFVc
The root port (1c.4) says this:
DevCap2: Completion Timeout: Range ABC, TimeoutDis+, LTR+, OBFF Not Supported ARIFwd+
AtomicOpsCap: Routing- 32bit- 64bit- 128bitCAS-
Not knowing much about AtomicOps but to me this looks like the root port
does not support the feature.
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next prev parent reply other threads:[~2019-03-14 17:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-13 18:09 Missing Thunderbolt 3 PCI-E atomics support Timur Kristóf
2019-03-14 10:30 ` Mika Westerberg
2019-03-14 17:26 ` Timur Kristóf
2019-03-14 17:40 ` Mika Westerberg [this message]
2019-03-14 17:54 ` Timur Kristóf
2019-03-14 18:17 ` Mika Westerberg
2019-03-14 18:36 ` Timur Kristóf
2019-03-15 19:46 ` Dieter Nützel
2019-03-15 20:03 ` Alex Deucher
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