linux-kernel - Re: [PATCH v2] cpufreq: powernv: Replacing pstate

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Message-ID: <11588667.R3ZLC4VYDO@vostro.rjw.lan>
Date:	Sat, 16 Jul 2016 03:02:36 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Viresh Kumar <viresh.kumar@...aro.org>,
	Akshay Adiga <akshay.adiga@...ux.vnet.ibm.com>
Cc:	linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org, ego@...ux.vnet.ibm.com,
	paulus@...abs.org, mpe@...erman.id.au
Subject: Re: [PATCH v2] cpufreq: powernv: Replacing pstate_id with frequency table index

On Monday, July 11, 2016 11:47:53 AM Viresh Kumar wrote:
> On 30-06-16, 11:53, Akshay Adiga wrote:
> > Refactoring code to use frequency table index instead of pstate_id.
> > This abstraction will make the code independent of the pstate values.
> > 
> > - No functional changes
> > - The highest frequency is at frequency table index 0 and the frequency
> >   decreases as the index increases.
> > - Macros pstates_to_idx() and idx_to_pstate() can be used for conversion
> >   between pstate_id and index.
> > - powernv_pstate_info now contains frequency table index to min, max and
> >   nominal frequency (instead of pstate_ids)
> > - global_pstate_info new stores index values instead pstate ids.
> > - variables renamed as *_idx which now store index instead of pstate
> > 
> > Signed-off-by: Akshay Adiga <akshay.adiga@...ux.vnet.ibm.com>
> > Reviewed-by: Gautham R. Shenoy <ego@...ux.vnet.ibm.com>
> > ---
> > Changes from v1:
> >   - changed macro names from get_pstate()/ get_index() to 
> > idx_to_pstate()/ pstate_to_idx()
> >   - Renamed variables that store index instead of pstate_id to *_idx
> >   - Retained previous printk's 
> > 
> > v1 : http://marc.info/?l=linux-pm&m=146677701501225&w=1
> > 
> >  drivers/cpufreq/powernv-cpufreq.c | 177 ++++++++++++++++++++++----------------
> >  1 file changed, 102 insertions(+), 75 deletions(-)
> 
> Haven't done in-depth review, but I trust that Gautham has done it :)
> 
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

Patch applied, thanks!