linux-kernel - Re: [PATCH 0/8] tools-power-x86-intel-speed-select: Fixes and updates for output

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Date:   Wed, 04 Sep 2019 13:59:48 -0700
From:   Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
To:     Prarit Bhargava <prarit@...hat.com>,
        platform-driver-x86@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...el.com>
Cc:     David Arcari <darcari@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/8] tools-power-x86-intel-speed-select: Fixes and
 updates for output


On Wed, 2019-09-04 at 16:55 -0400, Prarit Bhargava wrote:
> 
> On 9/4/19 4:06 PM, Srinivas Pandruvada wrote:
> > On Tue, 2019-09-03 at 11:37 -0400, Prarit Bhargava wrote:
> > > Some general fixes and updates for intel-speed-select.  Fixes
> > > include
> > > some
> > > typos as well as an off-by-one cpu count reporting
> > > error.  Updates
> > > for the
> > > output are
> > > 
> > > - switching to MHz as a standard
> > > - reporting CPU frequencies instead of ratios as a standard
> > > - viewing a human-readable CPU list.
> > > - avoiding reporting "0|1" as success|fail as these can be
> > > confusing
> > > for a
> > >   user.
> > 
> > Series looks fine, except 8/8.
> > So please submit v2. Better to resubmit as a series as v2, unless
> > Andy
> > has other preference.
> 
> Thanks Srinivas.
> 
> I have an additional patch.  It looks like there's a memory
> leak.  Sorry for the
> cut-and-paste but if okay I'll submit this as part of v2.  Reworking
> the code
> this way makes it easier to introduce CascadeLake-N support too.
> 
Looks good to me.

> diff --git a/tools/power/x86/intel-speed-select/isst-config.c
> b/tools/power/x86/
> intel-speed-select/isst-config.c
> index 78f0cebda1da..59753b3917bb 100644
> --- a/tools/power/x86/intel-speed-select/isst-config.c
> +++ b/tools/power/x86/intel-speed-select/isst-config.c
> @@ -603,6 +603,10 @@ static int isst_fill_platform_info(void)
> 
>         close(fd);
> 
> +       if (isst_platform_info.api_version > supported_api_ver) {
> +               printf("Incompatible API versions; Upgrade of tool is
> required\n");
> +               return -1;
> +       }
>         return 0;
>  }
> 
> @@ -1528,6 +1532,7 @@ static void cmdline(int argc, char **argv)
>  {
>         int opt;
>         int option_index = 0;
> +       int ret;
> 
>         static struct option long_options[] = {
>                 { "cpu", required_argument, 0, 'c' },
> @@ -1589,13 +1594,14 @@ static void cmdline(int argc, char **argv)
>         set_max_cpu_num();
>         set_cpu_present_cpu_mask();
>         set_cpu_target_cpu_mask();
> -       isst_fill_platform_info();
> -       if (isst_platform_info.api_version > supported_api_ver) {
> -               printf("Incompatible API versions; Upgrade of tool is
> required\n");
> -               exit(0);
> -       }
> +       ret = isst_fill_platform_info();
> +       if (ret)
> +               goto out;
> 
>         process_command(argc, argv);
> +out:
> +       free_cpu_set(present_cpumask);
> +       free_cpu_set(target_cpumask);
>  }
> 
>  int main(int argc, char **argv)
> 
> P.
> > 
> > Thanks,
> > Srinivas
> > 
> > > 
> > > Signed-off-by: Prarit Bhargava <prarit@...hat.com>
> > > Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
> > > Cc: David Arcari <darcari@...hat.com>
> > > Cc: linux-kernel@...r.kernel.org
> > > 
> > > Prarit Bhargava (8):
> > >   tools/power/x86/intel-speed-select: Fix package typo
> > >   tools/power/x86/intel-speed-select: Fix help option typo
> > >   tools/power/x86/intel-speed-select: Fix cpu-count output
> > >   tools/power/x86/intel-speed-select: Simplify output for turbo-
> > > freq
> > > and
> > >     base-freq
> > >   tools/power/x86/intel-speed-select: Switch output to MHz
> > >   tools/power/x86/intel-speed-select: Change turbo ratio output
> > > to
> > >     maximum turbo frequency
> > >   tools/power/x86/intel-speed-select: Output human readable CPU
> > > list
> > >   tools/power/x86/intel-speed-select: Output success/failed for
> > > command
> > >     output
> > > 
> > >  .../x86/intel-speed-select/isst-config.c      |   4 +-
> > >  .../x86/intel-speed-select/isst-display.c     | 116
> > > ++++++++++++--
> > > ----
> > >  2 files changed, 83 insertions(+), 37 deletions(-)
> > >