linux-kernel - Re: [PATCH V4] platform/x86/amd/pmf: Introduce new interface to export NPU metrics

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Message-ID: <ce45da68-9ef1-9391-95ee-8bcb614b0b51@linux.intel.com>
Date: Tue, 27 Jan 2026 13:46:49 +0200 (EET)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Mario Limonciello <mario.limonciello@....com>
cc: ogabbay@...nel.org, maciej.falkowski@...ux.intel.com, 
    Hans de Goede <hansg@...nel.org>, Jeff Hugo <jeff.hugo@....qualcomm.com>, 
    Lizhi Hou <lizhi.hou@....com>, Shyam Sundar S K <Shyam-sundar.S-k@....com>, 
    dri-devel@...ts.freedesktop.org, LKML <linux-kernel@...r.kernel.org>, 
    max.zhen@....com, sonal.santan@....com, 
    platform-driver-x86@...r.kernel.org, VinitKumar.Shukla@....com, 
    Patil Rajesh Reddy <Patil.Reddy@....com>
Subject: Re: [PATCH V4] platform/x86/amd/pmf: Introduce new interface to
 export NPU metrics

On Mon, 26 Jan 2026, Mario Limonciello wrote:

> 
> 
> On 1/20/2026 8:54 AM, Ilpo Järvinen wrote:
> > On Thu, 15 Jan 2026 09:34:48 -0800, Lizhi Hou wrote:
> > 
> > > The PMF driver retrieves NPU metrics data from the PMFW. Introduce a new
> > > interface to make NPU metrics accessible to other drivers like AMDXDNA
> > > driver, which can access and utilize this information as needed.
> > > 
> > > 
> > 
> > 
> > Thank you for your contribution, it has been applied to my local
> > review-ilpo-next branch. Note it will show up in the public
> > platform-drivers-x86/review-ilpo-next branch only once I've pushed my
> > local branch there, which might take a while.
> > 
> > The list of commits applied:
> > [1/1] platform/x86/amd/pmf: Introduce new interface to export NPU metrics
> >        commit: 15e19bd95be5c79f2f98b727edda002ba86f8d03
> > 
> > --
> >   i.
> > 
> 
> Lizhi,
> 
> One clarification.  What about the XDNA driver side of this change, are you
> still going to do it this cycle?
> 
> If so; this either needs an immutable branch from Ilpo or that side of the
> change needs to go through pdx86 as well.

Hi Mario,

I was told to me by Lizhi the xdna side patch not going to pursued in 
this cycle [1] so I went with that and changing that now is not realistic 
because of merges I've performed to for-next (I could have easily done 
IB for the change back when applying the patch which would have been the 
default but given that mention, I didn't bother).

[1] https://lore.kernel.org/all/93210832-aa75-7639-c9d2-99ec802d88e4@amd.com/

-- 
 i.