<div dir="auto">Userspace drivers can't access sysfs.<div dir="auto"><br></div><div dir="auto">Marek</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Jan 2, 2023, 10:54 Christian König <<a href="mailto:ckoenig.leichtzumerken@gmail.com">ckoenig.leichtzumerken@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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That stuff is already available as current_link_speed and
current_link_width in sysfs.<br>
<br>
I'm a bit reluctant duplicating this information in the IOCTL
interface.<br>
<br>
Christian. <br>
<br>
<div>Am 30.12.22 um 23:07 schrieb Marek
Olšák:<br>
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<div dir="ltr">For computing PCIe bandwidth in userspace and
troubleshooting PCIe<br>
bandwidth issues.<br>
<br>
For example, my Navi21 has been limited to PCIe gen 1 and this
is<br>
the first time I noticed it after 2 years.<br>
<br>
Note that this intentionally fills a hole and padding<br>
in drm_amdgpu_info_device.<br>
<br>
<div>Signed-off-by: Marek Olšák <<a href="mailto:marek.olsak@amd.com" target="_blank" rel="noreferrer">marek.olsak@amd.com</a>></div>
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</div>
<div>The patch is attached.</div>
<div><br>
</div>
<div>Marek<br>
</div>
<br>
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</blockquote>
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