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authorAsher Song <Asher.Song@amd.com>2021-05-21 12:11:33 +0300
committerAlex Deucher <alexander.deucher@amd.com>2021-05-26 06:44:16 +0300
commitabaf210c281d8e829324bc49e8b0bf665ea88a7b (patch)
tree9cd1de414b282d4a8976dca0bb51b1bb5a3eca2e
parent0e9def2108afbb3b91fca1dd985731b327e4c823 (diff)
downloadlinux-abaf210c281d8e829324bc49e8b0bf665ea88a7b.tar.xz
drm/amdgpu: add judgement for dc support
Drop DC initialization when DCN is harvested in VBIOS. The way doesn't affect virtual display ip initialization. Signed-off-by: Likun Gao <Likun.Gao@amd.com> Signed-off-by: Asher Song <Asher.Song@amd.com> Reviewed-by: Guchun Chen <guchun.chen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index d3611a50ff95..73bbe3ebffaf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3122,7 +3122,9 @@ bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type)
*/
bool amdgpu_device_has_dc_support(struct amdgpu_device *adev)
{
- if (amdgpu_sriov_vf(adev) || adev->enable_virtual_display)
+ if (amdgpu_sriov_vf(adev) ||
+ adev->enable_virtual_display ||
+ (adev->harvest_ip_mask & AMD_HARVEST_IP_DMU_MASK))
return false;
return amdgpu_device_asic_has_dc_support(adev->asic_type);