linux-kernel - Re: [PATCH] drm/imagination: DRM_POWERVR should depend on ARCH

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Date:   Tue, 28 Nov 2023 20:16:18 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Javier Martinez Canillas <javierm@...hat.com>
Cc:     Frank Binns <frank.binns@...tec.com>,
        Donald Robson <donald.robson@...tec.com>,
        Matt Coster <matt.coster@...tec.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Sarah Walker <sarah.walker@...tec.com>,
        Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] drm/imagination: DRM_POWERVR should depend on ARCH_K3

Hi Javier,

On Tue, Nov 28, 2023 at 8:03 PM Javier Martinez Canillas
<javierm@...hat.com> wrote:
> Geert Uytterhoeven <geert+renesas@...der.be> writes:
> > The Imagination Technologies PowerVR Series 6 GPU is currently only
> > supported on Texas Instruments K3 AM62x SoCs.  Hence add a dependency on
> > ARCH_K3, to prevent asking the user about this driver when configuring a
> > kernel without Texas Instruments K3 Multicore SoC support.
> >
> > Fixes: 4babef0708656c54 ("drm/imagination: Add skeleton PowerVR driver")
> > Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> > ---
>
> Indeed. Although I wonder what is the supposed policy since for example
> the DRM_PANFROST symbol only depends on ARM || ARM64 and others such as

I think ARM Mali is sufficiently ubiquitous on ARM/ARM64 systems to
have just an ARM/ARM64 dependency...

> DRM_ETNAVIV don't even have an SoC or architecture dependency.

Vivante GPUs are found in DTS files on at least 4 architectures.
Might be worthwhile to add some dependencies, though...

> In any case, I agree with you that restricting to only K3 makes sense.

I am looking forward to adding || SOC_AM33XX || ARCH_RENESAS || ...,
eventually ;-)

> Reviewed-by: Javier Martinez Canillas <javierm@...hat.com>

Thanks!

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds