[Bug 191571] AMD APU R4 hangs during hibernation - regression

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=191571

Felix Schwarz <felix.schwarz at oss.schwarz.eu> changed:

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--- Comment #4 from Felix Schwarz <felix.schwarz at oss.schwarz.eu> ---
according to the reporter's bisect log (comment #3) the first bad commit is:

commit 274ad65c9d02bdcbee9bae045517864c3521d530
Author: Jérome Glisse <jglisse at redhat.com>
Date:   Fri Mar 18 16:58:39 2016 +0100

    drm/radeon: hard reset r600 and newer GPU when hibernating.

    Some GPU block like UVD and VCE require hard reset to be properly
    resume if there is no real powerdown of the asic like during various
    hibernation step. This patch perform such hard reset.

    Reviewed-by: Christian König <christian.koenig at amd.com>
    Signed-off-by: Jérôme Glisse <jglisse at redhat.com>
    Cc: Alex Deucher <alexander.deucher at amd.com>
    Cc: Christian König <christian.koenig at amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher at amd.com>

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