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| author | Alex Deucher <alexander.deucher@amd.com> | 2024-10-04 09:34:24 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-14 20:03:44 +0100 |
| commit | 61fda5faad77df569ab847c4c8a5dddb4bd3991e (patch) | |
| tree | ee78ccc08a942903b8736d5d5a3ee137d4c3888a /drivers | |
| parent | b33f6e83921f1a7fa547758e291260049f92b65d (diff) | |
| download | linux-61fda5faad77df569ab847c4c8a5dddb4bd3991e.tar.gz linux-61fda5faad77df569ab847c4c8a5dddb4bd3991e.tar.bz2 linux-61fda5faad77df569ab847c4c8a5dddb4bd3991e.zip | |
drm/amd/display: disable SG displays on cyan skillfish
[ Upstream commit 66369db7fdd7d58d78673bf83d2b87ea623efb63 ]
These parts were mainly for compute workloads, but they have
a display that was available for the console. These chips
should support SG display, but I don't know that the support
was ever validated on Linux so disable it by default. It can
still be enabled by setting sg_display=1 for those that
want to play with it. These systems also generally had large
carve outs so SG display was less of a factor.
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3356
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 24fbde7dd1c4..8c3db8346f30 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1910,7 +1910,11 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) else init_data.flags.gpu_vm_support = (amdgpu_sg_display != 0); } else { - init_data.flags.gpu_vm_support = (amdgpu_sg_display != 0) && (adev->flags & AMD_IS_APU); + if (amdgpu_ip_version(adev, DCE_HWIP, 0) == IP_VERSION(2, 0, 3)) + init_data.flags.gpu_vm_support = (amdgpu_sg_display == 1); + else + init_data.flags.gpu_vm_support = + (amdgpu_sg_display != 0) && (adev->flags & AMD_IS_APU); } adev->mode_info.gpu_vm_support = init_data.flags.gpu_vm_support; |