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nv50/ir: fix emission of RED

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When the atomic result is unused, the opcode form needs to be a bit
different.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Acked-by: Pierre Moreau <dev@pmoreau.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9299>
This commit is contained in:
Ilia Mirkin 2021-02-15 12:22:02 -05:00
parent 1fad964553
commit ee28cae1ef
1 changed files with 14 additions and 5 deletions
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19
src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nv50.cpp
View file

@ -1824,19 +1824,28 @@ CodeEmitterNV50::emitATOM(const Instruction *i)
return;
}
code[0] = 0xd0000001;
code[1] = 0xe0c00000 | (subOp << 2);
code[1] = 0xc0c00000 | (subOp << 2);
if (isSignedType(i->dType))
code[1] |= 1 << 21;
// args
emitFlagsRd(i);
setDst(i, 0);
setSrc(i, 1, 1);
if (i->subOp == NV50_IR_SUBOP_ATOM_EXCH ||
i->subOp == NV50_IR_SUBOP_ATOM_CAS ||
i->defExists(0)) {
code[1] |= 0x20000000;
setDst(i, 0);
setSrc(i, 1, 1);
// g[] pointer
code[0] |= i->getSrc(0)->reg.fileIndex << 23;
} else {
srcId(i->src(1), 2);
// g[] pointer
code[0] |= i->getSrc(0)->reg.fileIndex << 16;
}
if (i->subOp == NV50_IR_SUBOP_ATOM_CAS)
setSrc(i, 2, 2);
// g[] pointer
code[0] |= i->getSrc(0)->reg.fileIndex << 23;
srcId(i->getIndirect(0, 0), 9);
}