| commit | 5c6eade8cce01ce13c10f98a5634d3961c62194b | |
| author | Marcos Scriven <marcos@scriven.org> | |
| Wed, 20 May 2020 23:23:30 +0000 (20 18:23 -0500) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Mon, 22 Jun 2020 07:32:59 +0000 (22 09:32 +0200) | ||
| tree | ffd98772a55df1d37839a80ba0f048b46e052adc | treesnapshot (tar.gz zip) |
| parent | c1684fb2f6152a631b98b259e8d796266427aa76 | commitdiff |
PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0
[ Upstream commit 0d14f06cd6657ba3446a5eb780672da487b068e7 ]
The AMD Matisse HD Audio & USB 3.0 devices advertise Function Level Reset
support, but hang when an FLR is triggered.
To reproduce the problem, attach the device to a VM, then detach and try to
attach again.
Rename the existing quirk_intel_no_flr(), which was not Intel-specific, to
quirk_no_flr(), and apply it to prevent the use of FLR on these AMD
devices.
Link: https://lore.kernel.org/r/CAAri2DpkcuQZYbT6XsALhx2e6vRqPHwtbjHYeiH7MNp4zmt1RA@mail.gmail.com
Signed-off-by: Marcos Scriven <marcos@scriven.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit 0d14f06cd6657ba3446a5eb780672da487b068e7 ]
The AMD Matisse HD Audio & USB 3.0 devices advertise Function Level Reset
support, but hang when an FLR is triggered.
To reproduce the problem, attach the device to a VM, then detach and try to
attach again.
Rename the existing quirk_intel_no_flr(), which was not Intel-specific, to
quirk_no_flr(), and apply it to prevent the use of FLR on these AMD
devices.
Link: https://lore.kernel.org/r/CAAri2DpkcuQZYbT6XsALhx2e6vRqPHwtbjHYeiH7MNp4zmt1RA@mail.gmail.com
Signed-off-by: Marcos Scriven <marcos@scriven.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| drivers/pci/quirks.c | diffblobblamehistory |