Re: Linux 5.17.5

["Jörg-Volker Peetz" <jvpeetz@web.de>]

JoergRoedel wrote on 02/05/2022 11:45:
> [now with Vasants correct email address]
>
> Hi Jörg,
>
> can you please try the attached patch? It should get rid of the WARNING
> on your system.
>
> Suravee, Vasant, can you please test review the patch and report whether
> the GA log functionality is still working?
>
> Thanks,
>
> 	Joerg
>
Thanks for the patch.
Will test it today.

Regards,
Jörg.

>  From 4fee768d5c23715eae31fed3b41cdf045e099aef Mon Sep 17 00:00:00 2001
> From: Joerg Roedel <jroedel@suse.de>
> Date: Mon, 2 May 2022 11:37:43 +0200
> Subject: [PATCH] iommu/amd: Do not poll GA_LOG_RUNNING mask at boot
>
> On some hardware it takes more than a second for the hardware to get
> the GA log into running state. This is too long to poll for in the AMD
> IOMMU driver code.
>
> Instead, check whehter initialization was successful before polling
> the log for the first time.
>
> Signed-off-by: Joerg Roedel <jroedel@suse.de>
> ---
>   drivers/iommu/amd/amd_iommu_types.h |  3 +++
>   drivers/iommu/amd/init.c            | 13 ++-----------
>   drivers/iommu/amd/iommu.c           | 25 ++++++++++++++++++++++++-
>   3 files changed, 29 insertions(+), 12 deletions(-)
<snip>