[PATCH v2 0/4] AMDKFD (AMD GPU compute) support for device cgroup.

Kasiviswanathan, Harish Harish.Kasiviswanathan at amd.com
Fri May 17 20:04:42 UTC 2019

Hi Tejun,

Thanks for comments. I can definitely add more documentation but just need a bit of clarification on this.

1). Documentation for user on how to use device cgroup for amdkfd device. I have some more information on this in patch 4. 
2) The reason devcgroup_check_permission() needs to be exported
3) something else totally that I missed.

Best Regards,

From: Tejun Heo <htejun at gmail.com> on behalf of Tejun Heo <tj at kernel.org>
Sent: Friday, May 17, 2019 12:49 PM
To: Kasiviswanathan, Harish
Cc: cgroups at vger.kernel.org; amd-gfx at lists.freedesktop.org
Subject: Re: [PATCH v2 0/4] AMDKFD (AMD GPU compute) support for device cgroup.

[CAUTION: External Email]

On Fri, May 17, 2019 at 04:14:52PM +0000, Kasiviswanathan, Harish wrote:
> amdkfd (part of amdgpu) driver supports the AMD GPU compute stack.
> amdkfd exposes only a single device /dev/kfd even if multiple AMD GPU
> (compute) devices exist in a system. However, amdgpu drvier exposes a
> separate render device file /dev/dri/renderDN for each device. To participate
> in device cgroup amdkfd driver will rely on these redner device files.
> v2: Exporting devcgroup_check_permission() instead of
> __devcgroup_check_permission() as per review comments.

Looks fine to me but given how non-obvious it is, some documentation
would be great.



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