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authorWyatt Wood <wyatt.wood@amd.com>2020-04-30 20:04:47 -0400
committerAlex Deucher <alexander.deucher@amd.com>2020-05-28 14:00:48 -0400
commit1db14695929f26a8f524f5c7af7d30265374b51d (patch)
treefbd311bb3a3f0fa113f15ef8682893754e3f2322 /lib/raid6
parent7b8a6362fa146b78398d2cb9380cc7f3cb2145d3 (diff)
drm/amd/display: Fix ABM memory alignment issue
[Why] Due to packing of abm_config_table, memory addresses aren't aligned to 32 bit boundary dmcub prefers. Therefore when using pointers to this structure, it's possible that dmcub will automatically align the data read from that address, yielding incorrect values. [How] Instead of packing 1 byte boundary, explicitly pack values to 4 byte boundary. Since there is a dependency on the existing iram table structure on driver side, we must copy to a second structure, which is aligned correctly, before passing to fw. Signed-off-by: Wyatt Wood <wyatt.wood@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'lib/raid6')
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