294604bc56
Add the ability to have multiple preambles, except for the sysmem (NOIBS/GFX6) code path which still only allows 1. This is necessary because with gang submit we will need a way to submit a preamble to different queues at the same time. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20010>