linux-kernel - Re: [PATCH v5 6/9] ACPI/PPTT: Add topology parsing code

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Date:   Wed, 13 Dec 2017 17:38:51 +0000
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Jeremy Linton <jeremy.linton@....com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        linux-acpi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        sudeep.holla@....com, hanjun.guo@...aro.org, will.deacon@....com,
        catalin.marinas@....com, gregkh@...uxfoundation.org,
        viresh.kumar@...aro.org, mark.rutland@....com,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        jhugo@...eaurora.org, wangxiongfeng2@...wei.com,
        Jonathan.Zhang@...ium.com, ahs3@...hat.com,
        Jayachandran.Nair@...ium.com, austinwc@...eaurora.org,
        lenb@...nel.org
Subject: Re: [PATCH v5 6/9] ACPI/PPTT: Add topology parsing code

On Tue, Dec 12, 2017 at 10:13:08AM -0600, Jeremy Linton wrote:
> Hi,
> 
> First, thanks for taking a look at this.
> 
> On 12/11/2017 07:12 PM, Rafael J. Wysocki wrote:
> >On Friday, December 1, 2017 11:23:27 PM CET Jeremy Linton wrote:
> >>The PPTT can be used to determine the groupings of CPU's at
> >>given levels in the system. Lets add a few routines to the PPTT
> >>parsing code to return a unique id for each unique level in the
> >>processor hierarchy. This can then be matched to build
> >>thread/core/cluster/die/package/etc mappings for each processing
> >>element in the system.
> >>
> >>Signed-off-by: Jeremy Linton <jeremy.linton@....com>
> >
> >Why can't this be folded into patch [2/9]?
> 
> It can, and I will be happy squash it.
> 
> It was requested that the topology portion of the parser be split
> out back in v3.
> 
> https://www.spinics.net/lists/linux-acpi/msg78487.html

I asked to split cache/topology since I am not familiar with cache
code and Sudeep - who looks after the cache code - won't be able
to review this series in time for v4.16.

Lorenzo