Much of the kernel code implicitly depends on a maximum work dimension
of 3, and in practice, gallium will never give a grid dimension of less
than 3, constraining the value to a constant.
v2: use a const for max dimension instead of a `min` call
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: @LingMan
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34167>
Seán de Búrca
26867670b2