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nak: Record and set DOES_FP64 in the SPH

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34540>
This commit is contained in:
Faith Ekstrand 2025-04-17 15:56:41 -05:00 • committed by Marge Bot
parent d249e7ddac
commit b27fc463da
1 changed files with 21 additions and 0 deletions
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21
src/nouveau/compiler/nak/ir.rs
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@ -6570,6 +6570,21 @@ impl Op {
}
}
pub fn is_fp64(&self) -> bool {
match self {
Op::MuFu(op) => matches!(op.op, MuFuOp::Rcp64H | MuFuOp::Rsq64H),
Op::DAdd(_)
| Op::DFma(_)
| Op::DMnMx(_)
| Op::DMul(_)
| Op::DSetP(_) => true,
Op::F2F(op) => op.src_type.bits() == 64 || op.dst_type.bits() == 64,
Op::F2I(op) => op.src_type.bits() == 64 || op.dst_type.bits() == 64,
Op::I2F(op) => op.src_type.bits() == 64 || op.dst_type.bits() == 64,
_ => false,
}
}
pub fn has_fixed_latency(&self, sm: u8) -> bool {
match self {
// Float ALU
@ -7766,6 +7781,7 @@ impl Shader<'_> {
let mut num_instrs = 0;
let mut uses_global_mem = false;
let mut writes_global_mem = false;
let mut uses_fp64 = false;
self.for_each_instr(&mut |instr| {
num_instrs += 1;
@ -7777,11 +7793,16 @@ impl Shader<'_> {
if !writes_global_mem {
writes_global_mem = instr.writes_global_mem();
}
if !uses_fp64 {
uses_fp64 = instr.op.is_fp64();
}
});
self.info.num_instrs = num_instrs;
self.info.uses_global_mem = uses_global_mem;
self.info.writes_global_mem = writes_global_mem;
self.info.uses_fp64 = uses_fp64;
self.info.max_warps_per_sm = max_warps_per_sm(
self.info.num_gprs as u32 + self.sm.hw_reserved_gprs(),