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authorAsher Song <Asher.Song@amd.com>2021-05-21 11:11:33 +0200
committerAlex Deucher <alexander.deucher@amd.com>2021-06-02 23:49:15 +0200
commit147feb007685cbb765b16a834d4f00675d589bb4 (patch)
tree2b62532669ceda5a5977e4848e8e7f35b912cab7 /drivers/gpu
parentdrm/amd/display: Fix GPU scaling regression by FS video support (diff)
downloadlinux-147feb007685cbb765b16a834d4f00675d589bb4.tar.xz
linux-147feb007685cbb765b16a834d4f00675d589bb4.zip
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>
Diffstat (limited to 'drivers/gpu')
-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 66ddfe4f58c2..57ec108b5972 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3118,7 +3118,9 @@ 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);