pan/bi: Support native layer_id store/load on Valhall
On Valhall, we can store the layer index in PositionFIFO attributes and
have the primitives dispatched to the appropriate list in the tiler
context, which means we no longer have to issue N IDVS jobs when doing
layered rendering.
On the fragment shader side, we can pass the layer index through the
frame_argument field, which can be preloaded in r62-r63, so do that to
save a push uniform slot.
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Reviewed-by: Mary Guillemard <mary.guillemard@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30695>
2 files changed
