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gm107/ir: add emission for ATOMS

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This allows to perform atomic operations on shared memory.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Samuel Pitoiset 2016-03-07 18:57:39 +01:00
parent 7f8565f0b2
commit 8f99c1bbce
1 changed files with 44 additions and 1 deletions
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45
src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
View file

@ -177,6 +177,7 @@ private:
void emitAL2P();
void emitIPA();
void emitATOM();
void emitATOMS();
void emitCCTL();
void emitPIXLD();
@ -2373,6 +2374,45 @@ CodeEmitterGM107::emitATOM()
emitGPR (0x00, insn->def(0));
}
void
CodeEmitterGM107::emitATOMS()
{
unsigned dType, subOp;
if (insn->subOp == NV50_IR_SUBOP_ATOM_CAS) {
switch (insn->dType) {
case TYPE_U32: dType = 0; break;
case TYPE_U64: dType = 1; break;
default: assert(!"unexpected dType"); dType = 0; break;
}
subOp = 4;
emitInsn (0xee000000);
emitField(0x34, 1, dType);
} else {
switch (insn->dType) {
case TYPE_U32: dType = 0; break;
case TYPE_S32: dType = 1; break;
case TYPE_U64: dType = 2; break;
case TYPE_S64: dType = 3; break;
default: assert(!"unexpected dType"); dType = 0; break;
}
if (insn->subOp == NV50_IR_SUBOP_ATOM_EXCH)
subOp = 8;
else
subOp = insn->subOp;
emitInsn (0xec000000);
emitField(0x1c, 3, dType);
}
emitField(0x34, 4, subOp);
emitGPR (0x14, insn->src(1));
emitADDR (0x08, 0x12, 22, 0, insn->src(0));
emitGPR (0x00, insn->def(0));
}
void
CodeEmitterGM107::emitCCTL()
{
@ -2967,7 +3007,10 @@ CodeEmitterGM107::emitInstruction(Instruction *i)
}
break;
case OP_ATOM:
emitATOM();
if (insn->src(0).getFile() == FILE_MEMORY_SHARED)
emitATOMS();
else
emitATOM();
break;
case OP_CCTL:
emitCCTL();