• Jean Delvare's avatar
    drm/amdgpu: revert tile table update for oland · 4cf97582
    Jean Delvare authored
    Several users have complained that the tile table update broke Oland
    support. Despite several attempts to fix it, the root cause is still
    unknown at this point and no solution is available. As it is not
    acceptable to leave a known regression breaking a major functionality
    in the kernel for several releases, let's just reverse this
    optimization for now. It can be implemented again later if and only
    if the breakage is understood and fixed.
    
    As there were no complaints for Hainan so far, only the Oland part of
    the offending commit is reverted. Optimization is preserved on
    Hainan, so this commit isn't an actual revert of the original.
    
    This fixes bug #194761:
    https://bugzilla.kernel.org/show_bug.cgi?id=194761Reviewed-by: default avatarMarek Olšák <marek.olsak@amd.com>
    Signed-off-by: default avatarJean Delvare <jdelvare@suse.de>
    Fixes: f8d9422e ("drm/amdgpu: update tile table for oland/hainan")
    Cc: Flora Cui <Flora.Cui@amd.com>
    Cc: Junwei Zhang <Jerry.Zhang@amd.com>
    Cc: Alex Deucher <alexander.deucher@amd.com>
    Cc: Marek Olšák <maraeo@gmail.com>
    Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
    Cc: stable@vger.kernel.org
    4cf97582
gfx_v6_0.c 117 KB