RE: [PATCH] drm/amd/pm: Skip smu_post_init in SRIOV

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[AMD Official Use Only - Internal Distribution Only]

Reviewed-by: Emily.Deng <Emily.Deng@xxxxxxx>

>-----Original Message-----
>From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of
>Jingwen Chen
>Sent: Thursday, September 17, 2020 5:43 PM
>To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
>Cc: Chen, JingWen <JingWen.Chen2@xxxxxxx>
>Subject: [PATCH] drm/amd/pm: Skip smu_post_init in SRIOV
>
>smu_post_init needs to enable SMU feature, while this require virtualization
>off. Skip it since this feature is not used in SRIOV.
>
>v2: move the check to the early stage of smu_post_init.
>
>v3: fix typo
>
>Signed-off-by: Jingwen Chen <Jingwen.Chen2@xxxxxxx>
>---
> drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 3 +++
> 1 file changed, 3 insertions(+)
>
>diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
>b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
>index a027c7fdad56..05cb1fdd15ce 100644
>--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
>+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
>@@ -2631,6 +2631,9 @@ static int navi10_post_smu_init(struct smu_context
>*smu)
> uint64_t feature_mask = 0;
> int ret = 0;
>
>+if (amdgpu_sriov_vf(adev))
>+return 0;
>+
> /* For Naiv1x, enable these features only after DAL initialization */
> if (adev->pm.pp_feature & PP_SOCCLK_DPM_MASK)
> feature_mask |= FEATURE_MASK(FEATURE_DPM_SOCCLK_BIT);
>--
>2.25.1
>
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