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gm107/ir: add emission for BAR

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Samuel Pitoiset 2016-03-01 18:57:58 +01:00
parent 8a109c0375
commit c82086f7e9
1 changed files with 52 additions and 0 deletions
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52
src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
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@ -194,6 +194,7 @@ private:
void emitKIL();
void emitOUT();
void emitBAR();
void emitMEMBAR();
void emitVOTE();
@ -2648,6 +2649,54 @@ CodeEmitterGM107::emitOUT()
emitGPR (0x00, insn->def(0));
}
void
CodeEmitterGM107::emitBAR()
{
uint8_t subop;
emitInsn (0xf0a80000);
switch (insn->subOp) {
case NV50_IR_SUBOP_BAR_RED_POPC: subop = 0x02; break;
case NV50_IR_SUBOP_BAR_RED_AND: subop = 0x0a; break;
case NV50_IR_SUBOP_BAR_RED_OR: subop = 0x12; break;
case NV50_IR_SUBOP_BAR_ARRIVE: subop = 0x81; break;
default:
subop = 0x80;
assert(insn->subOp == NV50_IR_SUBOP_BAR_SYNC);
break;
}
emitField(0x20, 8, subop);
// barrier id
if (insn->src(0).getFile() == FILE_GPR) {
emitGPR(0x08, insn->src(0));
} else {
ImmediateValue *imm = insn->getSrc(0)->asImm();
assert(imm);
emitField(0x08, 8, imm->reg.data.u32);
emitField(0x2b, 1, 1);
}
// thread count
if (insn->src(1).getFile() == FILE_GPR) {
emitGPR(0x14, insn->src(1));
} else {
ImmediateValue *imm = insn->getSrc(0)->asImm();
assert(imm);
emitField(0x14, 12, imm->reg.data.u32);
emitField(0x2c, 1, 1);
}
if (insn->srcExists(2) && (insn->predSrc != 2)) {
emitPRED (0x27, insn->src(2));
emitField(0x2a, 1, insn->src(2).mod == Modifier(NV50_IR_MOD_NOT));
} else {
emitField(0x27, 3, 7);
}
}
void
CodeEmitterGM107::emitMEMBAR()
{
@ -2978,6 +3027,9 @@ CodeEmitterGM107::emitInstruction(Instruction *i)
case OP_RESTART:
emitOUT();
break;
case OP_BAR:
emitBAR();
break;
case OP_MEMBAR:
emitMEMBAR();
break;