[Mesa-dev] [PATCH 2/6] nvc0/ir: add emission for SHLADD

Ilia Mirkin imirkin at alum.mit.edu
Mon Sep 19 22:21:33 UTC 2016


On Mon, Sep 19, 2016 at 6:11 PM, Samuel Pitoiset
<samuel.pitoiset at gmail.com> wrote:
> Unfortunately, we can't use the emit helpers for GF100/GK110
> because src1 and src2 are swapped.
>
> Signed-off-by: Samuel Pitoiset <samuel.pitoiset at gmail.com>
> ---
>  .../drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp | 53 ++++++++++++++++++++++
>  .../drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp | 32 +++++++++++++
>  .../drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp  | 44 ++++++++++++++++++
>  3 files changed, 129 insertions(+)
>
> diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp
> index 61c450b..2c4e3a7 100644
> --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp
> +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gk110.cpp
> @@ -96,6 +96,7 @@ private:
>     void emitDMUL(const Instruction *);
>     void emitIMAD(const Instruction *);
>     void emitISAD(const Instruction *);
> +   void emitSHLADD(const Instruction *);
>     void emitFMAD(const Instruction *);
>     void emitDMAD(const Instruction *);
>     void emitMADSP(const Instruction *i);
> @@ -757,6 +758,55 @@ CodeEmitterGK110::emitISAD(const Instruction *i)
>  }
>
>  void
> +CodeEmitterGK110::emitSHLADD(const Instruction *i)
> +{
> +   uint8_t addOp =
> +      (i->src(2).mod.neg() << 1) | (i->src(0).mod.neg() ^ i->src(1).mod.neg());
> +   const ImmediateValue *imm = i->src(1).get()->asImm();
> +   assert(imm);
> +
> +   if (i->src(2).getFile() == FILE_IMMEDIATE) {
> +      code[0] = 0x1;
> +      code[1] = 0xc0c << 20;
> +   } else {
> +      code[0] = 0x2;
> +      code[1] = 0x20c << 20;
> +   }
> +   code[1] |= addOp << 19;
> +
> +   emitPredicate(i);
> +
> +   defId(i->def(0), 2);
> +   srcId(i->src(0), 10);
> +
> +   if (i->flagsDef >= 0)
> +      code[1] |= 1 << 18;
> +
> +   assert(!(imm->reg.data.u32 & 0xffffffe0));
> +   code[1] |= imm->reg.data.u32 << 10;
> +
> +   switch (i->src(2).getFile()) {
> +   case FILE_GPR:
> +      assert(code[0] & 0x2);
> +      code[1] |= 0xc << 28;
> +      srcId(i->src(2), 23);
> +      break;
> +   case FILE_MEMORY_CONST:
> +      assert(code[0] & 0x2);
> +      code[1] |= 0x4 << 28;
> +      setCAddress14(i->src(2));
> +      break;
> +   case FILE_IMMEDIATE:
> +      assert(code[0] & 0x1);
> +      setShortImmediate(i, 2);
> +      break;
> +   default:
> +      assert(!"bad src2 file");
> +      break;
> +   }
> +}
> +
> +void
>  CodeEmitterGK110::emitNOT(const Instruction *i)
>  {
>     code[0] = 0x0003fc02; // logop(mov2) dst, 0, not src
> @@ -2403,6 +2453,9 @@ CodeEmitterGK110::emitInstruction(Instruction *insn)
>     case OP_SAD:
>        emitISAD(insn);
>        break;
> +   case OP_SHLADD:
> +      emitSHLADD(insn);
> +      break;
>     case OP_NOT:
>        emitNOT(insn);
>        break;
> diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
> index cfde66c..973a105 100644
> --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
> +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_gm107.cpp
> @@ -152,6 +152,7 @@ private:
>     void emitIADD();
>     void emitIMUL();
>     void emitIMAD();
> +   void emitSHLADD();
>     void emitIMNMX();
>     void emitICMP();
>     void emitISET();
> @@ -1813,6 +1814,34 @@ CodeEmitterGM107::emitIMAD()
>  }
>
>  void
> +CodeEmitterGM107::emitSHLADD()

The convention in the GM107 emitter is to use the nvdisasm names here.
So ISCADD.

> +{
> +   switch (insn->src(2).getFile()) {
> +   case FILE_GPR:
> +      emitInsn(0x5c180000);
> +      emitGPR (0x14, insn->src(2));
> +      break;
> +   case FILE_MEMORY_CONST:
> +      emitInsn(0x4c180000);
> +      emitCBUF(0x22, -1, 0x14, 16, 2, insn->src(2));
> +      break;
> +   case FILE_IMMEDIATE:
> +      emitInsn(0x38180000);
> +      emitIMMD(0x14, 19, insn->src(2));
> +      break;
> +   default:
> +      assert(!"bad src1 file");
> +      break;
> +   }
> +   emitNEG (0x31, insn->src(0));
> +   emitNEG (0x30, insn->src(2));
> +   emitCC  (0x2f);
> +   emitIMMD(0x27, 5, insn->src(1));
> +   emitGPR (0x08, insn->src(0));
> +   emitGPR (0x00, insn->def(0));
> +}
> +
> +void
>  CodeEmitterGM107::emitIMNMX()
>  {
>     switch (insn->src(1).getFile()) {
> @@ -3098,6 +3127,9 @@ CodeEmitterGM107::emitInstruction(Instruction *i)
>           emitIMAD();
>        }
>        break;
> +   case OP_SHLADD:
> +      emitSHLADD();
> +      break;
>     case OP_MIN:
>     case OP_MAX:
>        if (isFloatType(insn->dType)) {
> 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 d8ca6ab..c874b86 100644
> --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
> +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp
> @@ -101,6 +101,7 @@ private:
>     void emitDMUL(const Instruction *);
>     void emitIMAD(const Instruction *);
>     void emitISAD(const Instruction *);
> +   void emitSHLADD(const Instruction *a);
>     void emitFMAD(const Instruction *);
>     void emitDMAD(const Instruction *);
>     void emitMADSP(const Instruction *);
> @@ -759,6 +760,46 @@ CodeEmitterNVC0::emitIMAD(const Instruction *i)
>  }
>
>  void
> +CodeEmitterNVC0::emitSHLADD(const Instruction *i)
> +{
> +   uint8_t addOp =
> +      (i->src(2).mod.neg() << 1) | (i->src(0).mod.neg() ^ i->src(1).mod.neg());
> +   const ImmediateValue *imm = i->src(1).get()->asImm();
> +   assert(imm);
> +
> +   code[0] = 0x00000003;
> +   code[1] = 0x40000000 | addOp << 23;
> +
> +   emitPredicate(i);
> +
> +   defId(i->def(0), 14);
> +   srcId(i->src(0), 20);
> +
> +   if (i->flagsDef >= 0)
> +      code[1] |= 1 << 16;
> +
> +   assert(!(imm->reg.data.u32 & 0xffffffe0));
> +   code[0] |= imm->reg.data.u32 << 5;
> +
> +   switch (i->src(2).getFile()) {
> +   case FILE_GPR:
> +      srcId(i->src(2), 26);
> +      break;
> +   case FILE_MEMORY_CONST:
> +      code[1] |= 0x4000;
> +      code[1] |= i->getSrc(2)->reg.fileIndex << 10;
> +      setAddress16(i->src(2));
> +      break;
> +   case FILE_IMMEDIATE:
> +      setImmediate(i, 2);
> +      break;
> +   default:
> +      assert(!"bad src2 file");
> +      break;
> +   }
> +}
> +
> +void
>  CodeEmitterNVC0::emitMADSP(const Instruction *i)
>  {
>     assert(targ->getChipset() >= NVISA_GK104_CHIPSET);
> @@ -2603,6 +2644,9 @@ CodeEmitterNVC0::emitInstruction(Instruction *insn)
>     case OP_SAD:
>        emitISAD(insn);
>        break;
> +   case OP_SHLADD:
> +      emitSHLADD(insn);
> +      break;
>     case OP_NOT:
>        emitNOT(insn);
>        break;
> --
> 2.10.0
>
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