[Intel-gfx] [PATCH v6 3/4] drm: Expand max DRM device number to full MINORBITS

[Christian König]

Am 28.07.23 um 16:22 schrieb Simon Ser:
> On Thursday, July 27th, 2023 at 14:01, Christian König <christian.koenig at amd.com> wrote:
>
>>> We do need patches to stop trying to infer the node type from the minor
>>> in libdrm, though. Emil has suggested using sysfs, which we already do
>>> in a few places in libdrm.
>> That sounds like a really good idea to me as well.
>>
>> But what do we do with DRM_MAX_MINOR? Change it or keep it and say apps
>> should use drmGetDevices2() like Emil suggested?
> DRM_MAX_MINOR has been bumped to 64 now.
>
> With the new minor allocation scheme, DRM_MAX_MINOR is meaningless
> because there is no "max minor per type" concept anymore: the minor no
> longer contains the type.
>
> So I'd suggest leaving it as-is (so that old apps still continue to
> work on systems with < 64 devices like they do today) and mark it as
> deprecated.

Sounds like a plan to me.

Regards,
Christian.