drm/amdgpu: bypass hdp read cache invalidation for aldebaran (v2)
authorHawking Zhang <Hawking.Zhang@amd.com>
Tue, 22 Dec 2020 07:55:35 +0000 (15:55 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 24 Mar 2021 02:56:45 +0000 (22:56 -0400)
commitd02692ae0d538598e9ef970dabfd29620055b18b
tree4ea83222ca6324fdc8f959bb8af7a69c0b473e83
parentb7daed1b62a4966af836a011e0f75c45f1728b09
drm/amdgpu: bypass hdp read cache invalidation for aldebaran (v2)

hdp read cache is removed in aldebaran. don't issue
an mmio write or write data packet to hardware.

v2: rebase

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c