nv50/ir: txg not available on nvaa/nvac

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nv50.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nv50.cpp
index ade9be0..618cc69 100644 (file)
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nv50.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nv50.cpp
@@ -380,7 +380,7 @@ TargetNV50::isOpSupported(operation op, DataType ty) const
    case OP_PRERET:
       return chipset >= 0xa0;
    case OP_TXG:
-      return chipset >= 0xa3;
+      return chipset >= 0xa3 && chipset != 0xaa && chipset != 0xac;
    case OP_POW:
    case OP_SQRT:
    case OP_DIV: