P4 to Git Change 1740048 by wchau@wchau_OCL_Linux on 2019/02/05 14:10:40

SWDEV-134107 - Add support for respecting target's xnack setting
	- Enable the XNACK feature for all the APU system and remove the xnackEnabled_ field in AMDDeviceInfo struct

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/device.hpp#332 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocdefs.hpp#23 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocdevice.cpp#116 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocprogram.cpp#98 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocsettings.cpp#41 edit

rocclr/runtime/device/rocm/rocsettings.cpp

@@ -77,10 +77,12 @@ bool Settings::create(bool fullProfile, int gfxipVersion) {
     pinnedXferSize_ = 0;
     stagedXferSize_ = 0;
     xferBufSize_ = 0;
+    apuSystem_ = true;
   } else {
     pinnedXferSize_ = std::max(pinnedXferSize_, pinnedMinXferSize_);
     stagedXferSize_ = std::max(stagedXferSize_, pinnedMinXferSize_ + 4 * Ki);
   }
+  enableXNACK_ = apuSystem_ ? 1 : 0 ;   // enable xnack for APU system
 
   // Enable extensions
   enableExtension(ClKhrByteAddressableStore);
@@ -118,10 +120,6 @@ bool Settings::create(bool fullProfile, int gfxipVersion) {
     enableExtension(ClAmdFp64);
   }
 
-  if (gfxipVersion == 902) {
-    apuSystem_ = true;
-  }
-
   // Override current device settings
   override();