Re: [PATCH 2/2] drm/amdkfd: fix boot failure when iommu is disabled in Picasso.

To: "Zhu, James" <James.Zhu@xxxxxxx>, "amd-gfx@xxxxxxxxxxxxxxxxxxxxx" <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [PATCH 2/2] drm/amdkfd: fix boot failure when iommu is disabled in Picasso.
From: "Lazar, Lijo" <Lijo.Lazar@xxxxxxx>
Date: Wed, 3 Nov 2021 16:44:14 +0000
Accept-language: en-US
Cc: "Deucher, Alexander" <Alexander.Deucher@xxxxxxx>, "Zhang, Yifan" <Yifan1.Zhang@xxxxxxx>, youling <youling257@xxxxxxxxx>, "zarniwhoop@xxxxxxxxxxxx" <zarniwhoop@xxxxxxxxxxxx>
In-reply-to: <4136ce63-2865-c4fe-90d5-9cc3f869d59f@amd.com>
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References: <20211102192324.3402-1-James.Zhu@amd.com> <20211102192324.3402-2-James.Zhu@amd.com> <e390c469-5584-4157-ccaa-3be588b4143a@amd.com> <4136ce63-2865-c4fe-90d5-9cc3f869d59f@amd.com>

[Public]

It's a conditional case for some kind of early reset. Haven't checked details, on a quick glance it appeared to call iommu init again.

Thanks,
Lijo

References:
- [PATCH 1/2] Revert "drm/amdkfd: fix boot failure when iommu is disabled in Picasso."
  - From: James Zhu
- [PATCH 2/2] drm/amdkfd: fix boot failure when iommu is disabled in Picasso.
  - From: James Zhu
- Re: [PATCH 2/2] drm/amdkfd: fix boot failure when iommu is disabled in Picasso.
  - From: Lazar, Lijo
- Re: [PATCH 2/2] drm/amdkfd: fix boot failure when iommu is disabled in Picasso.
  - From: James Zhu