nvc0: enable very initial support for nvf0 (GK110)

Shaders need a lot of work still.  Basic stuff generally works, so this
is basically just fine for gnome-shell, OA etc at this point.

Signed-off-by: Ben Skeggs <[email protected]>

2 files changed, 66 insertions, 5 deletions

diff --git a/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_gk110.cpp b/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_gk110.cpp
index bdf37ec5902..e752e90f55a 100644
--- a/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_gk110.cpp
+++ b/src/gallium/drivers/nvc0/codegen/nv50_ir_emit_gk110.cpp
@@ -1144,13 +1144,45 @@ CodeEmitterGK110::emitPFETCH(const Instruction *i)
 void
 CodeEmitterGK110::emitVFETCH(const Instruction *i)
 {
-   emitNOP(i); // TODO
+   uint32_t offset = i->src(0).get()->reg.data.offset;
+
+   code[0] = 0x00000002 | (offset << 23);
+   code[1] = 0x7ec00000 | (offset >> 9);
+
+#if 0
+   if (i->perPatch)
+      code[0] |= 0x100;
+   if (i->getSrc(0)->reg.file == FILE_SHADER_OUTPUT)
+      code[0] |= 0x200; // yes, TCPs can read from *outputs* of other threads
+#endif
+
+   emitPredicate(i);
+
+   defId(i->def(0), 2);
+   srcId(i->src(0).getIndirect(0), 10);
+   srcId(i->src(0).getIndirect(1), 32 + 10); // vertex address
 }
 
 void
 CodeEmitterGK110::emitEXPORT(const Instruction *i)
 {
-   emitNOP(i); // TODO
+   uint32_t offset = i->src(0).get()->reg.data.offset;
+
+   code[0] = 0x00000002 | (offset << 23);
+   code[1] = 0x7f000000 | (offset >> 9);
+
+#if 0
+   if (i->perPatch)
+      code[0] |= 0x100;
+#endif
+
+   emitPredicate(i);
+
+   assert(i->src(1).getFile() == FILE_GPR);
+
+   srcId(i->src(0).getIndirect(0), 10);
+   srcId(i->src(0).getIndirect(1), 32 + 10); // vertex base address
+   srcId(i->src(1), 2);
 }
 
 void
@@ -1162,13 +1194,35 @@ CodeEmitterGK110::emitOUT(const Instruction *i)
 void
 CodeEmitterGK110::emitInterpMode(const Instruction *i)
 {
-   emitNOP(i); // TODO
+   code[1] |= i->ipa << 21; // TODO: INTERP_SAMPLEID
 }
 
 void
 CodeEmitterGK110::emitINTERP(const Instruction *i)
 {
-   emitNOP(i); // TODO
+   const uint32_t base = i->getSrc(0)->reg.data.offset;
+
+   code[0] = 0x00000002 | (base << 31);
+   code[1] = 0x74800000 | (base >> 1);
+
+   if (i->saturate)
+      code[1] |= 1 << 18;
+
+   if (i->op == OP_PINTERP)
+      srcId(i->src(1), 23);
+   else
+      code[0] |= 0xff << 23;
+
+   srcId(i->src(0).getIndirect(0), 10);
+   emitInterpMode(i);
+
+   emitPredicate(i);
+   defId(i->def(0), 2);
+
+   if (i->getSampleMode() == NV50_IR_INTERP_OFFSET)
+      srcId(i->src(i->op == OP_PINTERP ? 2 : 1), 32 + 10);
+   else
+      code[1] |= 0xff << 10;
 }
 
 void
diff --git a/src/gallium/drivers/nvc0/codegen/nv50_ir_target_nvc0.cpp b/src/gallium/drivers/nvc0/codegen/nv50_ir_target_nvc0.cpp
index 588baa8bc87..2dd7fd22aa4 100644
--- a/src/gallium/drivers/nvc0/codegen/nv50_ir_target_nvc0.cpp
+++ b/src/gallium/drivers/nvc0/codegen/nv50_ir_target_nvc0.cpp
@@ -351,7 +351,14 @@ TargetNVC0::isAccessSupported(DataFile file, DataType ty) const
    if (file == FILE_MEMORY_CONST && getChipset() >= 0xe0) // wrong encoding ?
       return typeSizeof(ty) <= 8;
    if (ty == TYPE_B96)
-      return (file == FILE_SHADER_INPUT) || (file == FILE_SHADER_OUTPUT);
+      return false;
+   if (getChipset() >= 0xf0) {
+      // XXX: find wide vfetch/export
+      if (ty == TYPE_B128)
+         return false;
+      if (ty == TYPE_U64)
+         return false;
+   }
    return true;
 }