diff options
| author | Thomas Hellstrom <thellstrom@vmware.com> | 2019-05-29 08:15:19 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-06-25 11:36:01 +0800 |
| commit | e6803ce36d496bc8173e3a32f5d396ead5afac02 (patch) | |
| tree | 45e2268e854592b05528cbb4f2e007269f92913a /include | |
| parent | 7499528bb0783f7a46683e1cad2eab9e5591a5e0 (diff) | |
drm/vmwgfx: Use the backdoor port if the HB port is not available
commit cc0ba0d8624f210995924bb57a8b181ce8976606 upstream.
The HB port may not be available for various reasons. Either it has been
disabled by a config option or by the hypervisor for other reasons.
In that case, make sure we have a backup plan and use the backdoor port
instead with a performance penalty.
Cc: stable@vger.kernel.org
Fixes: 89da76fde68d ("drm/vmwgfx: Add VMWare host messaging capability")
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Deepak Rawat <drawat@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions