[PATCH 0/1][SRU][B][OEM-B] AMD Prairie Falcon platform failed to boot up

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[PATCH 0/1][SRU][B][OEM-B] AMD Prairie Falcon platform failed to boot up

AceLan Kao
BugLink: https://bugs.launchpad.net/bugs/1850572

[Impact]
AMD Prairie Falcon is the AME Embedded variant of Stoney. It fails to boot
up without disable its CGCG feature.
Set 'amdgpu.cg_mask=0xfffffffb' kernel parameter to disable CGCG

[Fix]
Suggestion from AMD that we have to cherry pick this commit which is
included in v4.16
   fb4bbba27753 drm/amdgpu: re-enable CGCG on CZ and disable on ST

[Test]
Verified on AMD Prairie Falcon platform, system boots up normally.

[Regression Potential]
Low, this commit has been included for more than one and a half year
in the upstream, should be pretty safe to include it.

Shirish S (1):
  drm/amdgpu: re-enable CGCG on CZ and disable on ST

 drivers/gpu/drm/amd/amdgpu/vi.c | 1 -
 1 file changed, 1 deletion(-)

--
2.17.1


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[PATCH 1/1][SRU][B][OEM-B] drm/amdgpu: re-enable CGCG on CZ and disable on ST

AceLan Kao
From: Shirish S <[hidden email]>

BugLink: https://bugs.launchpad.net/bugs/1850572

The CGCG feature on Stoney is causing GFX related
issues such as freezes and blank outs.

Signed-off-by: Shirish S <[hidden email]>
Reviewed-by: Arindam Nath <[hidden email]>
Acked-by: Alex Deucher <[hidden email]>
Signed-off-by: Alex Deucher <[hidden email]>
(cherry picked from commit fb4bbba2775399149ca902f31eb5c46cc7a8d8b8)
Signed-off-by: AceLan Kao <[hidden email]>
---
 drivers/gpu/drm/amd/amdgpu/vi.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 91778e4706bc..18bc16d59452 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -1093,7 +1093,6 @@ static int vi_common_early_init(void *handle)
  AMD_CG_SUPPORT_GFX_CP_LS |
  AMD_CG_SUPPORT_GFX_CGTS |
  AMD_CG_SUPPORT_GFX_CGTS_LS |
- AMD_CG_SUPPORT_GFX_CGCG |
  AMD_CG_SUPPORT_GFX_CGLS |
  AMD_CG_SUPPORT_BIF_LS |
  AMD_CG_SUPPORT_HDP_MGCG |
--
2.17.1


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APPLIED[OEM-B]: [PATCH 0/1][SRU][B][OEM-B] AMD Prairie Falcon platform failed to boot up

AceLan Kao
In reply to this post by AceLan Kao
Acked-By: AceLan Kao <[hidden email]>

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ACK: [PATCH 0/1][SRU][B][OEM-B] AMD Prairie Falcon platform failed to boot up

Po-Hsu Lin (Sam)
In reply to this post by AceLan Kao
Clean cherry-pick with positive test result.
Acked-by: Po-Hsu Lin <[hidden email]>

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ACK: [PATCH 1/1][SRU][B][OEM-B] drm/amdgpu: re-enable CGCG on CZ and disable on ST

Connor Kuehl
In reply to this post by AceLan Kao
On 10/30/19 7:25 PM, AceLan Kao wrote:

> From: Shirish S <[hidden email]>
>
> BugLink: https://bugs.launchpad.net/bugs/1850572
>
> The CGCG feature on Stoney is causing GFX related
> issues such as freezes and blank outs.
>
> Signed-off-by: Shirish S <[hidden email]>
> Reviewed-by: Arindam Nath <[hidden email]>
> Acked-by: Alex Deucher <[hidden email]>
> Signed-off-by: Alex Deucher <[hidden email]>
> (cherry picked from commit fb4bbba2775399149ca902f31eb5c46cc7a8d8b8)
> Signed-off-by: AceLan Kao <[hidden email]>

Acked-by: Connor Kuehl <[hidden email]>

> ---
>   drivers/gpu/drm/amd/amdgpu/vi.c | 1 -
>   1 file changed, 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
> index 91778e4706bc..18bc16d59452 100644
> --- a/drivers/gpu/drm/amd/amdgpu/vi.c
> +++ b/drivers/gpu/drm/amd/amdgpu/vi.c
> @@ -1093,7 +1093,6 @@ static int vi_common_early_init(void *handle)
>   AMD_CG_SUPPORT_GFX_CP_LS |
>   AMD_CG_SUPPORT_GFX_CGTS |
>   AMD_CG_SUPPORT_GFX_CGTS_LS |
> - AMD_CG_SUPPORT_GFX_CGCG |
>   AMD_CG_SUPPORT_GFX_CGLS |
>   AMD_CG_SUPPORT_BIF_LS |
>   AMD_CG_SUPPORT_HDP_MGCG |
>


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APPLIED(B): [PATCH 0/1][SRU][B][OEM-B] AMD Prairie Falcon platform failed to boot up

Khaled Elmously
In reply to this post by AceLan Kao
On 2019-10-31 10:25:30 , AceLan Kao wrote:

> BugLink: https://bugs.launchpad.net/bugs/1850572
>
> [Impact]
> AMD Prairie Falcon is the AME Embedded variant of Stoney. It fails to boot
> up without disable its CGCG feature.
> Set 'amdgpu.cg_mask=0xfffffffb' kernel parameter to disable CGCG
>
> [Fix]
> Suggestion from AMD that we have to cherry pick this commit which is
> included in v4.16
>    fb4bbba27753 drm/amdgpu: re-enable CGCG on CZ and disable on ST
>
> [Test]
> Verified on AMD Prairie Falcon platform, system boots up normally.
>
> [Regression Potential]
> Low, this commit has been included for more than one and a half year
> in the upstream, should be pretty safe to include it.
>
> Shirish S (1):
>   drm/amdgpu: re-enable CGCG on CZ and disable on ST
>
>  drivers/gpu/drm/amd/amdgpu/vi.c | 1 -
>  1 file changed, 1 deletion(-)
>
> --
> 2.17.1
>
>
> --
> kernel-team mailing list
> [hidden email]
> https://lists.ubuntu.com/mailman/listinfo/kernel-team

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