Acked-by: Bas Nieuwenhuizen <bas@xxxxxxxxxxxxxxxxxxx>
On Thu, Dec 1, 2022 at 8:47 PM Jason Ekstrand <jason@xxxxxxxxxxxxxx> wrote:
>
> Acked-by: Jason Ekstrand <jason.ekstrand@xxxxxxxxxxxxx>
>
> On Thu, Dec 1, 2022 at 4:22 AM Daniel Vetter <daniel.vetter@xxxxxxxx> wrote:
>>
>> On Thu, 1 Dec 2022 at 11:07, Daniel Vetter <daniel@xxxxxxxx> wrote:
>> >
>> > On Wed, Nov 23, 2022 at 08:24:37PM +0100, Daniel Vetter wrote:
>> > > It's a bit a FAQ, and we really can't claim to be the authoritative
>> > > source for allocating these numbers used in many standard extensions
>> > > if we tell closed source or vendor stacks in general to go away.
>> > >
>> > > Iirc this was already clarified in some vulkan discussions, but I
>> > > can't find that anywhere anymore. At least not in a public link.
>> > >
>> > > Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
>> > > Cc: Maxime Ripard <mripard@xxxxxxxxxx>
>> > > Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
>> > > Cc: David Airlie <airlied@xxxxxxxxx>
>> > > Cc: Daniel Vetter <daniel@xxxxxxxx>
>> > > Cc: Alex Deucher <alexdeucher@xxxxxxxxx>
>> > > Cc: Daniel Stone <daniel@xxxxxxxxxxxxx>
>> > > Cc: Bas Nieuwenhuizen <bas@xxxxxxxxxxxxxxxxxxx>
>> > > Cc: Jason Ekstrand <jason@xxxxxxxxxxxxxx>
>> > > Cc: Neil Trevett <ntrevett@xxxxxxxxxx>
>> > > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
>> >
>> > From irc:
>> >
>> > <airlied> danvet: ack from me
>>
>> Also from irc:
>>
>> <mareko> danvet: Acked
>>
>> -Daniel
>>
>> > > ---
>> > > include/uapi/drm/drm_fourcc.h | 12 ++++++++++++
>> > > 1 file changed, 12 insertions(+)
>> > >
>> > > diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
>> > > index bc056f2d537d..de703c6be969 100644
>> > > --- a/include/uapi/drm/drm_fourcc.h
>> > > +++ b/include/uapi/drm/drm_fourcc.h
>> > > @@ -88,6 +88,18 @@ extern "C" {
>> > > *
>> > > * The authoritative list of format modifier codes is found in
>> > > * `include/uapi/drm/drm_fourcc.h`
>> > > + *
>> > > + * Open Source User Waiver
>> > > + * -----------------------
>> > > + *
>> > > + * Because this is the authoritative source for pixel formats and modifiers
>> > > + * referenced by GL, Vulkan extensions and other standards and hence used both
>> > > + * by open source and closed source driver stacks, the usual requirement for an
>> > > + * upstream in-kernel or open source userspace user does not apply.
>> > > + *
>> > > + * To ensure, as much as feasible, compatibility across stacks and avoid
>> > > + * confusion with incompatible enumerations stakeholders for all relevant driver
>> > > + * stacks should approve additions.
>> > > */
>> > >
>> > > #define fourcc_code(a, b, c, d) ((__u32)(a) | ((__u32)(b) << 8) | \
>> > > --
>> > > 2.37.2
>> > >
>> >
>> > --
>> > Daniel Vetter
>> > Software Engineer, Intel Corporation
>> > http://blog.ffwll.ch
>>
>>
>>
>> --
>> Daniel Vetter
>> Software Engineer, Intel Corporation
>> http://blog.ffwll.ch
