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nak/sm20: Add conversion ops

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34540>
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Faith Ekstrand 2025-04-16 15:45:25 -05:00 • committed by Marge Bot
parent b27fc463da
commit 0105a75c53
1 changed files with 82 additions and 0 deletions
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82
src/nouveau/compiler/nak/sm20.rs
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@ -1247,6 +1247,84 @@ impl SM20Op for OpShr {
}
}
impl SM20Op for OpF2F {
fn legalize(&mut self, b: &mut LegalizeBuilder) {
use RegFile::GPR;
b.copy_alu_src_if_f20_overflow(&mut self.src, GPR, SrcType::ALU);
}
fn encode(&self, e: &mut SM20Encoder<'_>) {
e.encode_form_b(SM20Unit::Move, 0x4, self.dst, self.src);
e.set_bit(5, false); // .sat
e.set_bit(6, self.src.src_mod.has_fabs());
e.set_bit(7, self.integer_rnd);
e.set_bit(8, self.src.src_mod.has_fneg());
e.set_field(20..22, (self.dst_type.bits() / 8).ilog2());
e.set_field(23..25, (self.src_type.bits() / 8).ilog2());
e.set_rnd_mode(49..51, self.rnd_mode);
e.set_bit(55, self.ftz);
e.set_bit(56, self.high);
}
}
impl SM20Op for OpF2I {
fn legalize(&mut self, b: &mut LegalizeBuilder) {
use RegFile::GPR;
b.copy_alu_src_if_f20_overflow(&mut self.src, GPR, SrcType::ALU);
}
fn encode(&self, e: &mut SM20Encoder<'_>) {
e.encode_form_b(SM20Unit::Move, 0x5, self.dst, self.src);
e.set_bit(6, self.src.src_mod.has_fabs());
e.set_bit(7, self.dst_type.is_signed());
e.set_bit(8, self.src.src_mod.has_fneg());
e.set_field(20..22, (self.dst_type.bits() / 8).ilog2());
e.set_field(23..25, (self.src_type.bits() / 8).ilog2());
e.set_rnd_mode(49..51, self.rnd_mode);
e.set_bit(55, self.ftz);
e.set_bit(56, false); // .high
}
}
impl SM20Op for OpI2F {
fn legalize(&mut self, b: &mut LegalizeBuilder) {
use RegFile::GPR;
b.copy_alu_src_if_i20_overflow(&mut self.src, GPR, SrcType::ALU);
}
fn encode(&self, e: &mut SM20Encoder<'_>) {
assert!(self.src.src_mod.is_none());
e.encode_form_b(SM20Unit::Move, 0x6, self.dst, self.src);
e.set_bit(6, false); // .abs
e.set_bit(8, false); // .neg
e.set_bit(9, self.src_type.is_signed());
e.set_field(20..22, (self.dst_type.bits() / 8).ilog2());
e.set_field(23..25, (self.src_type.bits() / 8).ilog2());
e.set_rnd_mode(49..51, self.rnd_mode);
e.set_field(55..57, 0_u8); // 1: .h0, 2: .h1
}
}
impl SM20Op for OpI2I {
fn legalize(&mut self, b: &mut LegalizeBuilder) {
use RegFile::GPR;
b.copy_alu_src_if_i20_overflow(&mut self.src, GPR, SrcType::ALU);
}
fn encode(&self, e: &mut SM20Encoder<'_>) {
assert!(self.src.src_mod.is_none());
e.encode_form_b(SM20Unit::Move, 0x7, self.dst, self.src);
e.set_bit(5, self.saturate);
e.set_bit(6, self.abs);
e.set_bit(7, self.dst_type.is_signed());
e.set_bit(8, self.neg);
e.set_bit(9, self.src_type.is_signed());
e.set_field(20..22, (self.dst_type.bits() / 8).ilog2());
e.set_field(23..25, (self.src_type.bits() / 8).ilog2());
e.set_field(55..57, 0_u8); // 1: .h0, 2: .h1
}
}
impl SM20Op for OpMov {
fn legalize(&mut self, _b: &mut LegalizeBuilder) {
// Nothing to do
@ -1545,6 +1623,10 @@ macro_rules! as_sm20_op_match {
Op::PopC(op) => op,
Op::Shl(op) => op,
Op::Shr(op) => op,
Op::F2F(op) => op,
Op::F2I(op) => op,
Op::I2F(op) => op,
Op::I2I(op) => op,
Op::Mov(op) => op,
Op::Prmt(op) => op,
Op::Sel(op) => op,