linux-kernel - Re: Large new drm driver

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Date:   Tue, 2 May 2017 12:36:35 +1000
From:   Dave Airlie <airlied@...il.com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Linus <torvalds@...ux-foundation.org>,
        Dave Airlie <airlied@...ux.ie>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: Large new drm driver

On 2 May 2017 at 11:31, Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> Hi Linus,
>
> Just so you don't get a large suprise:
>
> $ git diff --dirstat v4.11..next-20170501
>    3.9% arch/
>   13.5% drivers/gpu/drm/amd/include/asic_reg/vega10/DC/
>    6.0% drivers/gpu/drm/amd/include/asic_reg/vega10/GC/
>   23.5% drivers/gpu/drm/amd/include/asic_reg/vega10/NBIO/
>    7.5% drivers/gpu/drm/amd/include/asic_reg/vega10/
>    4.9% drivers/gpu/drm/
>    4.6% drivers/net/
>    5.8% drivers/staging/media/atomisp/pci/atomisp2/css2400/
>    3.0% drivers/staging/media/
>    4.5% drivers/staging/rtl8723bs/
>   12.6% drivers/
>
> There are some very large include files in the new drm driver.
>
> wc -l over all the files in
> drivers/gpu/drm/amd/include/asic_reg/vega10/:

We've had register header files like this on a number of occasions
before, not sure why it warrants a mention now.

It's just the public header files for the new Vega AMD GPUs,
as opposed to a whole new driver.

AMD release the validated headers so open source developers
don't have to go hunting for registers.

Dave.