amdgpu/addrlib: Add a new output flag to notify client that the returned tile index is for PRT on SI

If this flag is set for mip0, client should set prt flag for sub mips,
so that address lib can select the correct tile index for sub mips.

src/amd/addrlib/addrinterface.h

@@ -619,7 +619,10 @@ typedef struct _ADDR_COMPUTE_SURFACE_INFO_OUTPUT
                                        ///< Only meaningful when create flag checkLast2DLevel is set
         UINT_32     tcCompatible : 1;  ///< If the surface can be shader compatible
         UINT_32     dccUnsupport : 1;  ///< If the surface can support DCC compressed rendering
-        UINT_32     reserved     :29;  ///< Reserved bits
+        UINT_32     prtTileIndex : 1;  ///< SI only, indicate the returned tile index is for PRT
+                                       ///< If address lib return true for mip 0, client should set prt flag
+                                       ///< for child mips in subsequent compute surface info calls
+        UINT_32     reserved     :28;  ///< Reserved bits
     };
 
     UINT_32         equationIndex;     ///< Equation index in the equation table;

src/amd/addrlib/r800/siaddrlib.cpp

@@ -2231,6 +2231,7 @@ VOID SiLib::HwlSetupTileInfo(
     }
 
     pOut->tileIndex = index;
+    pOut->prtTileIndex = flags.prt;
 }
 
 /**