Re: [Mesa-dev] [PATCH 3/9] nvc0/ir: Emit OP_SHFL

[Samuel Pitoiset]

On 04/08/2017 11:51 AM, Boyan Ding wrote:

---
  .../drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp  | 51 ++++++++++++++++++++++
  1 file changed, 51 insertions(+)

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp 
b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
index d5a310f88c..8dd73bd77d 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
@@ -150,6 +150,8 @@ private:

void emitPIXLD(const Instruction *); + void emitSHFL(const Instruction *);

+
     void emitVOTE(const Instruction *);

inline void defId(const ValueDef&, const int pos);

@@ -2529,6 +2531,52 @@ CodeEmitterNVC0::emitPIXLD(const Instruction *i)
  }

void

+CodeEmitterNVC0::emitSHFL(const Instruction *i)
+{

assert(targ->getChipset() >= NVISA_GK104_CHIPSET);

+   code[0] = 0x00000005;
+   code[1] = 0x88000000 | (i->subOp << 23);
+
+   emitPredicate(i);
+
+   defId(i->def(0), 14);
+   srcId(i->src(0), 20);
+
+   switch (i->src(1).getFile()) {
+   case FILE_GPR:
+      srcId(i->src(1), 26);
+      break;
+   case FILE_IMMEDIATE:
+      code[0] |= (i->src(1).get()->asImm()->reg.data.u32 & 0x1f) << 26;
+      code[0] |= 1 << 5;
+      break;
+   default:
+      assert(!"invalid src1 file");
+      break;
+   }
+
+   switch (i->src(2).getFile()) {
+   case FILE_GPR:
+      srcId(i->src(2), 49);
+      break;
+   case FILE_IMMEDIATE:
+      code[1] |= (i->src(2).get()->asImm()->reg.data.u32 & 0x1fff) << 10;
+      code[0] |= 1 << 6;
+      break;
+   default:
+      assert(!"invalid src2 file");
+      break;
+   }
+
+   if (!i->defExists(1)) {
+      code[0] |= 3 << 8;
+      code[1] |= 1 << 26;
+   } else {
+      assert(i->def(1).getFile() == FILE_PREDICATE);
+      setPDSTL(i->def(1));
+   }
+}
+
+void
  CodeEmitterNVC0::emitVOTE(const Instruction *i)
  {
     assert(i->src(0).getFile() == FILE_PREDICATE);
@@ -2837,6 +2885,9 @@ CodeEmitterNVC0::emitInstruction(Instruction *insn)
     case OP_PIXLD:
        emitPIXLD(insn);
        break;
+   case OP_SHFL:
+      emitSHFL(insn);
+      break;
     case OP_VOTE:
        emitVOTE(insn);
        break;

_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev