P4 to Git Change 2058803 by gandryey@gera-win10 on 2020/01/17 15:47:42

SWDEV-219901 - [OCL-ROCr]Add pitch workaround for Navi10
	- Add pitch workaroud. Allocate a native image as the backing store and perform double copy when necessary

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocdevice.cpp#149 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocdevice.hpp#48 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocmemory.cpp#46 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocmemory.hpp#16 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocsettings.cpp#47 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocsettings.hpp#19 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocvirtual.cpp#95 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/rocm/rocvirtual.hpp#31 edit


[ROCm/clr commit: 3c137e7b19]

projects/clr/rocclr/runtime/device/rocm/rocsettings.cpp

@@ -70,6 +70,7 @@ Settings::Settings() {
   useLightning_ = (!flagIsDefault(GPU_ENABLE_LC)) ? GPU_ENABLE_LC : true;
 
   lcWavefrontSize64_ = true;
+  imageBufferWar_ = false;
 }
 
 bool Settings::create(bool fullProfile, int gfxipVersion) {
@@ -128,6 +129,10 @@ bool Settings::create(bool fullProfile, int gfxipVersion) {
   if (gfxipVersion >= 1000) {
      enableWave32Mode_ = true;
      enableWgpMode_ = GPU_ENABLE_WGP_MODE;
+     if (gfxipVersion == 1001) {
+       // GFX10.1 HW doesn't support custom pitch. Enable double copy workaround
+       imageBufferWar_ = GPU_IMAGE_BUFFER_WAR;
+     }
   }
   if (!flagIsDefault(GPU_ENABLE_WAVE32_MODE)) {
     enableWave32Mode_ = GPU_ENABLE_WAVE32_MODE;