linux-kernel - Re: [patch 19/22] ASoC: Intel: Convert to new X86 CPU match macros

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Message-ID: <CAHp75VdCTCk8OKBWKAapZz27zSvsDm_L6TChhSNpS0U0nS=wCQ@mail.gmail.com>
Date:   Fri, 20 Mar 2020 16:58:38 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" <x86@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Gross <mgross@...ux.intel.com>,
        Tony Luck <tony.luck@...el.com>, Takashi Iwai <tiwai@...e.com>,
        ALSA Development Mailing List <alsa-devel@...a-project.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Darren Hart <dvhart@...radead.org>,
        Andy Shevchenko <andy@...radead.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        linux-edac@...r.kernel.org,
        Platform Driver <platform-driver-x86@...r.kernel.org>,
        Jean Delvare <jdelvare@...e.com>,
        Guenter Roeck <linux@...ck-us.net>,
        linux-hwmon@...r.kernel.org, Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Amit Kucheria <amit.kucheria@...durent.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        linux-mmc <linux-mmc@...r.kernel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        linux-crypto <linux-crypto@...r.kernel.org>
Subject: Re: [patch 19/22] ASoC: Intel: Convert to new X86 CPU match macros

On Fri, Mar 20, 2020 at 3:18 PM Thomas Gleixner <tglx@...utronix.de> wrote:
>
> The new macro set has a consistent namespace and uses C99 initializers
> instead of the grufty C89 ones.
>
> Get rid the of the local macro wrappers for consistency.

> -#define ICPU(model)    { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, }
> -
>  #define SOC_INTEL_IS_CPU(soc, type)                            \
>  static inline bool soc_intel_is_##soc(void)                    \
>  {                                                              \
>         static const struct x86_cpu_id soc##_cpu_ids[] = {      \
> -               ICPU(type),                                     \
> +               X86_MATCH_INTEL_FAM6_MODEL(type, NULL),         \
>                 {}                                              \
>         };                                                      \
>         const struct x86_cpu_id *id;                            \
> @@ -32,11 +30,11 @@ static inline bool soc_intel_is_##soc(vo
>         return false;                                           \
>  }
>

> +SOC_INTEL_IS_CPU(byt, ATOM_SILVERMONT);
> +SOC_INTEL_IS_CPU(cht, ATOM_AIRMONT);
> +SOC_INTEL_IS_CPU(apl, ATOM_GOLDMONT);
> +SOC_INTEL_IS_CPU(glk, ATOM_GOLDMONT_PLUS);
> +SOC_INTEL_IS_CPU(cml, KABYLAKE_L);

I'm wondering if driver data can be used in one macro to distinguish
which CPU we are run on.
Takashi, what do you think?

-- 
With Best Regards,
Andy Shevchenko