ACK: [SRU] [L/M/N] [PATCH 0/1] Avoid using damage rectangle under hardware rotation mode when PSR is enabled

[Andrei Gherzan]

On 23/12/09 12:46AM, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/2045958
> 
> [Impact]
> When hardware rotation feature is used by compositor, the clip damage on
> cursor plane causes screen glitches on AMD platforms with PSR panel.
> 
> [Fix]
> Disable clip damage when hardware rotation is used.
> 
> [Test]
> With the patch applied, the issue can't be observed when the screen is
> rotated 180 degree.
> 90 and 270 degrees are unaffected since no compositor is using hardware
> rotation for those two angles.
> 
> [Where problems could occur]
> The power consumption in theory will higher for 180 degree rotation
> because now the full screen may need to be redrawn when cursor moves.
> 
> Hamza Mahfooz (1):
>   drm/amd/display: fix hw rotated modes when PSR-SU is enabled
> 
>  drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c    |  3 +++
>  drivers/gpu/drm/amd/display/dc/dc_hw_types.h         |  1 +
>  .../drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c    |  3 ++-
>  drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hubp.c    | 12 ++++++++++--
>  4 files changed, 16 insertions(+), 3 deletions(-)

Acked-by: Andrei Gherzan <andrei.gherzan at canonical.com>

-- 
Andrei Gherzan
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