P4 to Git Change 1968527 by gandryey@gera-win10 on 2019/07/16 14:52:45

SWDEV-195023 - [CQE OCL][Navi10][RESOLVE] corruption seen in thumbnail for mxf clip after enabling temporal denoiser in Davinci resolve app
	- Add a workaround for missing custom pitch in gfx10 HW. It can be disabled with GPU_IMAGE_BUFFER_WAR=0. Workaround implements double copy with an image without pitch.

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palmemory.cpp#26 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palmemory.hpp#12 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palsettings.cpp#89 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palsettings.hpp#24 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palvirtual.cpp#138 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palvirtual.hpp#62 edit
... //depot/stg/opencl/drivers/opencl/runtime/utils/flags.hpp#313 edit

rocclr/runtime/device/pal/palsettings.cpp

@@ -144,6 +144,7 @@ Settings::Settings() {
   hsailExplicitXnack_ = false;
   lcWavefrontSize64_ = true;
   enableHwP2P_ = false;
+  imageBufferWar_ = false;
 }
 
 bool Settings::create(const Pal::DeviceProperties& palProp,
@@ -331,6 +332,11 @@ bool Settings::create(const Pal::DeviceProperties& palProp,
       return false;
   }
 
+  if (gfx10Plus_) {
+    // GFX10 HW doesn't support custom pitch. Enable double copy workaround
+    imageBufferWar_ = GPU_IMAGE_BUFFER_WAR;
+  }
+
   splitSizeForWin7_ = false;
 
 #if defined(_WIN32)