SRS and massive Mimo gNB Radio receiver

Hi,
In our system of Massive Mimo (64x64) the gNB radio receives 64 antenna streams. These are mapped to 8 layers for Pusch and Prach but I guess the SRS from all 64 antennas need not be converted to 8 layers but SRS from all 64 streams need to be passed to L1 . Am I right?
Thanks.