linux-kernel - Re: [PATCH v2 0/2] drm/panfrost: Fix UAPI for C++/BSD compatibility

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Date:   Mon, 17 Oct 2022 11:44:22 -0400
From:   Alyssa Rosenzweig <alyssa@...labora.com>
To:     Steven Price <steven.price@....com>
Cc:     Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>,
        Adri??n Larumbe <adrian.larumbe@...labora.com>,
        Rob Herring <robh@...nel.org>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Robin Murphy <robin.murphy@....com>
Subject: Re: [PATCH v2 0/2] drm/panfrost: Fix UAPI for C++/BSD compatibility

Series is

	Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>

Thank you for this, please push to the appropriate trees so we can fix
the Mesa build.

On Mon, Oct 17, 2022 at 11:46:00AM +0100, Steven Price wrote:
> The Panfrost DRM interface to user space is uesd in Mesa for targets
> other than C/Linux. Specifically the header file needs to compile in C++
> code and for FreeBSD which shares the same UABI.
> 
> The first patch fixes the C++ compilation issue by removing the
> (unnecessary) type name from internal structs which is invalid in C++.
> 
> The second patch technically changes the UABI by changing the header
> values in the dump format to be native endian rather than fixed
> little-endian. Since (a) there are no known big-endian Mali systems, and
> (b) this has only appeared in -rc1, this shouldn't break user space.
> Tools can use the 'magic' field to identify the endianness of the dump
> if they want to support big-endian.
> 
> This is effectively a 'v2' of Adri??n's series here [1].
> 
> [1] https://lore.kernel.org/r/20220920211545.1017355-1-adrian.larumbe%40collabora.com
> 
> Steven Price (2):
>   drm/panfrost: Remove type name from internal structs
>   drm/panfrost: replace endian-specific types with native ones
> 
>  drivers/gpu/drm/panfrost/panfrost_dump.c | 36 ++++++++++++------------
>  include/uapi/drm/panfrost_drm.h          | 36 +++++++++++++-----------
>  2 files changed, 38 insertions(+), 34 deletions(-)
> 
> -- 
> 2.34.1
>