* [PATCH] drm/amdgpu: add judgement for dc support
@ 2021-05-25 4:03 Asher Song
2021-05-25 7:42 ` Chen, Guchun
0 siblings, 1 reply; 2+ messages in thread
From: Asher Song @ 2021-05-25 4:03 UTC (permalink / raw)
To: amd-gfx; +Cc: Likun Gao, Asher Song
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>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 8848e2b9bef9..148da7ca5d55 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);
--
2.25.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* RE: [PATCH] drm/amdgpu: add judgement for dc support
2021-05-25 4:03 [PATCH] drm/amdgpu: add judgement for dc support Asher Song
@ 2021-05-25 7:42 ` Chen, Guchun
0 siblings, 0 replies; 2+ messages in thread
From: Chen, Guchun @ 2021-05-25 7:42 UTC (permalink / raw)
To: Song, Asher, amd-gfx; +Cc: Gao, Likun, Song, Asher
[AMD Public Use]
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Regards,
Guchun
-----Original Message-----
From: amd-gfx <amd-gfx-bounces@lists.freedesktop.org> On Behalf Of Asher Song
Sent: Tuesday, May 25, 2021 12:03 PM
To: amd-gfx@lists.freedesktop.org
Cc: Gao, Likun <Likun.Gao@amd.com>; Song, Asher <Asher.Song@amd.com>
Subject: [PATCH] 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>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 8848e2b9bef9..148da7ca5d55 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);
--
2.25.1
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