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nak/sm70: Implement OpAtom with Dst::None as RED

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30354>
This commit is contained in:
Faith Ekstrand 2024-07-23 15:10:39 -05:00 • committed by Marge Bot
parent bcff324ef3
commit 959ae0161b
1 changed files with 13 additions and 5 deletions
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18
src/nouveau/compiler/nak/sm70.rs
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@ -2585,11 +2585,15 @@ impl SM70Op for OpSuAtom {
}
fn encode(&self, e: &mut SM70Encoder<'_>) {
if let AtomOp::CmpExch(cmp_src) = self.atom_op {
if self.dst.is_none() {
e.set_opcode(0x3a0);
e.set_atom_op(87..90, self.atom_op);
} else if let AtomOp::CmpExch(cmp_src) = self.atom_op {
e.set_opcode(0x396);
assert!(cmp_src == AtomCmpSrc::Packed);
} else {
e.set_opcode(0x394);
e.set_atom_op(87..91, self.atom_op);
};
e.set_dst(self.dst);
@ -2604,7 +2608,6 @@ impl SM70Op for OpSuAtom {
e.set_bit(72, false); // .BA
e.set_atom_type(73..76, self.atom_type);
e.set_atom_op(87..91, self.atom_op);
}
}
@ -2756,11 +2759,10 @@ impl SM70Op for OpSt {
impl SM70Encoder<'_> {
fn set_atom_op(&mut self, range: Range<usize>, atom_op: AtomOp) {
assert!(range.len() == 4);
self.set_field(
range,
match atom_op {
AtomOp::Add | AtomOp::CmpExch(_) => 0_u8,
AtomOp::Add => 0_u8,
AtomOp::Min => 1_u8,
AtomOp::Max => 2_u8,
AtomOp::Inc => 3_u8,
@ -2769,6 +2771,7 @@ impl SM70Encoder<'_> {
AtomOp::Or => 6_u8,
AtomOp::Xor => 7_u8,
AtomOp::Exch => 8_u8,
AtomOp::CmpExch(_) => panic!("CmpExch is a separate opcode"),
},
);
}
@ -2798,7 +2801,12 @@ impl SM70Op for OpAtom {
fn encode(&self, e: &mut SM70Encoder<'_>) {
match self.mem_space {
MemSpace::Global(_) => {
if let AtomOp::CmpExch(cmp_src) = self.atom_op {
if self.dst.is_none() {
e.set_opcode(0x98e);
e.set_reg_src(32..40, self.data);
e.set_atom_op(87..90, self.atom_op);
} else if let AtomOp::CmpExch(cmp_src) = self.atom_op {
e.set_opcode(0x3a9);
assert!(cmp_src == AtomCmpSrc::Separate);