linux/drivers/gpu/drm/amd
Wyatt Wood 1db1469592 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>
2020-05-28 14:00:48 -04:00
..
acp drm: amd/acp: fix broken menu structure 2020-03-13 11:52:35 -04:00
amdgpu drm/amdgpu: fix device attribute node create failed with multi gpu 2020-05-26 15:51:45 -04:00
amdkfd drm/amdkfd: report the real PCI bus number 2020-05-21 12:48:42 -04:00
display drm/amd/display: Fix ABM memory alignment issue 2020-05-28 14:00:48 -04:00
include drm/amdgpu: add apu flags (v2) 2020-05-22 13:41:53 -04:00
powerplay drm/amdgpu: add apu flags (v2) 2020-05-22 13:41:53 -04:00