remove RTMemoryStyleOptions regkey

The key is useless now, as we cannot freely choose
the memory style in IGC.

Author: MaciejKalinski

IGC/AdaptorCommon/RayTracing/RayTracingInterface.cpp

@@ -119,54 +119,12 @@ static void setupRegionBTIs(CodeGenContext* pContext)
     }
 }
 
-static constexpr uint32_t numRegkey()
-{
-    uint32_t i = 0;
-#define RTMEMORY_STYLE_OPTION(Name, Val) i++;
-#include "igc_regkeys_enums_defs.h"
-    RTMEMORY_STYLE_OPTIONS
-#undef RTMEMORY_STYLE_OPTION
-#undef RTMEMORY_STYLE_OPTIONS
-        return i;
-}
-
-static constexpr uint32_t numLayouts()
-{
-    uint32_t i = 0;
-#define STYLE(X) i++;
-#include "RayTracingMemoryStyle.h"
-#undef STYLE
-    return i;
-}
-
 static void setupRTMemoryStyle(CodeGenContext* pContext)
 {
-    static_assert(numRegkey() == numLayouts() + 1, "add the key!");
-    enum class StyleOptions
-    {
-#define RTMEMORY_STYLE_OPTION(Name, Val) Name = Val,
-#include "igc_regkeys_enums_defs.h"
-        RTMEMORY_STYLE_OPTIONS
-#undef RTMEMORY_STYLE_OPTION
-#undef RTMEMORY_STYLE_OPTIONS
-    };
-
-    auto Style = StyleOptions(IGC_GET_FLAG_VALUE(RTMemoryStyleOptions));
-
     auto& rtInfo = pContext->getModuleMetaData()->rtInfo;
 
-    switch (Style)
-    {
-        case StyleOptions::Auto:
-            rtInfo.MemStyle = RTMemoryStyle::Xe;
-            break;
-#define STYLE(X)                                \
-        case StyleOptions::X:                   \
-            rtInfo.MemStyle = RTMemoryStyle::X; \
-            break;
-#include "RayTracingMemoryStyle.h"
-#undef STYLE
-    }
+    rtInfo.MemStyle = RTMemoryStyle::Xe;
+
 }
 
 

IGC/common/igc_flags.h

@@ -946,7 +946,6 @@ DECLARE_IGC_GROUP("Raytracing Options")
     DECLARE_IGC_REGKEY(DWORD, RetryRTPickBetterThreshold, 10, "Only pick the retry shader if the spill cost of the 2nd compilation is at least this percentage better than the previous compilation", false)
     DECLARE_IGC_REGKEY(bool, EnableFillScheduling, false, "Schedule fills for reduced register pressure", false)
     DECLARE_IGC_REGKEY(bool, DisableSWStackOffsetElision, false, "Avoid loading offseting when known at compile-time", false)
-    DECLARE_IGC_REGKEY_ENUM(RTMemoryStyleOptions, -1, "Select layout of RT memory", RTMEMORY_STYLE_OPTIONS, true)
     DECLARE_IGC_REGKEY(DWORD, OverrideTMax, 0, "Force TMax to the given value. When 0, do nothing.", false)
 
 DECLARE_IGC_GROUP("VectorCompiler Options")

IGC/common/igc_regkeys_enums_defs.h

@@ -101,9 +101,3 @@ SPDX-License-Identifier: MIT
     TRIBOOL_OPTION(Enabled,  1)
 #endif // TRIBOOL_OPTION
 
-#ifdef RTMEMORY_STYLE_OPTION
-#define RTMEMORY_STYLE_OPTIONS      \
-    RTMEMORY_STYLE_OPTION(Auto, -1) \
-    RTMEMORY_STYLE_OPTION(Xe,    0)
-#endif // RTMEMORY_STYLE_OPTION
-