P4 to Git Change 1363842 by asalmanp@asalmanp-opencl-stg on 2017/01/19 11:35:19

SWDEV-107075 - [OCL][VG10] Conformance RQ Mipmaps tests are failing. Adding a temporary workaround for Vega10 to disable sDMA transfers for MemToImage and ImageToMem for 1Darray image format for now and use Kernles instead until the failures can be root-caused and fixed.
	GPU_DISABLE_SDMA_IMG_MEM_IMG environment variable was also added to quickly enable back the sDMA for testing and continuing the current failure investigation.

	ReviewBoardURL = http://ocltc.amd.com/reviews/r/12194/

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palresource.cpp#22 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palsettings.cpp#14 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palsettings.hpp#8 edit
... //depot/stg/opencl/drivers/opencl/runtime/utils/flags.hpp#265 edit

rocclr/runtime/device/pal/palsettings.cpp

@@ -137,6 +137,9 @@ Settings::Settings()
 
     // Disable SDMA workaround by default
     sdamPageFaultWar_ = false;
+
+    // Disable SDMA copy for Image to Mem and Mem to Image by default
+    disableSdmaMemoryToImage_ = false;
 }
 
 bool
@@ -176,6 +179,11 @@ Settings::create(
         switch (palProp.gfxLevel) {
         case Pal::GfxIpLevel::GfxIp9:
             aiPlus_ = true;
+            if (!apuSystem_)
+                // This is a temporary workaround to disable sDMA for MemToImage and
+                // ImageToMem copies and needs be removed later once we have a fix
+                // for Conf. images(mipmaps) 1Darray failures on Vega10
+                disableSdmaMemoryToImage_ = GPU_DISABLE_SDMA_MEMORY_TO_IMAGE;
             break;
         default:
             assert(0 && "Unknown GfxIP type!");