Function fp8_quant_hopper_ctas 

pub fn fp8_quant_hopper_ctas(m: u32, k: u32) -> u32

CTAs the TWIN’s grid would launch for (m, k) — the product of super::fp8_quant_grid’s Hopper arm, read from that function rather than restated, so the floor cannot come to disagree with the launch it guards.