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authorHugo Hu <[email protected]>2021-01-20 07:54:11 +0000
committerAlex Deucher <[email protected]>2021-03-02 19:07:38 +0000
commitdbc43d5fdf48e4e558338fcaef8c9d19521d1c2e (patch)
tree1b59cb2a309689389c6c499120c88b37dec25f2c /drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h
parentdrm/amd/display: 3.2.125 (diff)
downloadkernel-dbc43d5fdf48e4e558338fcaef8c9d19521d1c2e.tar.gz
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drm/amd/display: treat memory as a single-channel for asymmetric memory
[Why] 1. Driver use umachannelnumber to calculate watermarks for stutter. In asymmetric memory config, the actual bandwidth is less than dual-channel. The bandwidth should be the same as single-channel. 2. We found single rank dimm need additional delay time for stutter. [How] Get information from each DIMM. Treat memory config as a single-channel for asymmetric memory in bandwidth calculating. Add additional delay time for single rank dimm. Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Hugo Hu <[email protected]> Reviewed-by: Tony Cheng <[email protected]> Acked-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h')
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