tree b60812d358fa0fb33bf9046152ece82009b20874
parent 5f5fdf612efb8fc3629d220058dccf5385ecdce3
author Julian Parkin <julian.parkin@amd.com> 1567112765 -0400
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1577807044 +0100

drm/amd/display: Program DWB watermarks from correct state

[ Upstream commit edb922b022c0c94805c4ffad202b3edff83d76f0 ]

[Why]
When diags adds a DWB via a stream update, we calculate MMHUBBUB
paramaters, but dc->current_state has not yet been updated
when the DWB programming happens. This leads to overflow on
high bandwidth tests since the incorrect MMHUBBUB arbitration
parameters are programmed.

[How]
Pass the updated context down to the (enable|update)_writeback functions
so that they can use the correct watermarks when programming MMHUBBUB.

Signed-off-by: Julian Parkin <julian.parkin@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>