SWDEV-576718 - provide option to limit memory cache usage (#2810)

* SWDEV-576718 - provide option to limit memory cache usage

* SWDEV-576718 - Use MiB instead of MB in description

projects/clr/rocclr/device/pal/palsettings.cpp

@@ -347,6 +347,9 @@ bool Settings::create(const Pal::DeviceProperties& palProp,
 #endif
   }
 
+  resourceCacheSize_ = std::min(resourceCacheSize_,
+                               (uint64_t)GPU_MAX_RESOURCE_CACHE_SIZE * Mi);
+
   // If is Rebar, override prepinned memory size.
   if ((heaps[Pal::GpuHeapInvisible].logicalSize == 0) &&
       (heaps[Pal::GpuHeapLocal].logicalSize > 256 * Mi)) {

projects/clr/rocclr/utils/flags.hpp

@@ -83,7 +83,9 @@ release(size_t, GPU_PINNED_XFER_SIZE, 32,                                     \
 release(size_t, GPU_PINNED_MIN_XFER_SIZE, 128,                                \
         "The minimal buffer size for pinned read/write transfers in MiB")     \
 release(size_t, GPU_RESOURCE_CACHE_SIZE, 64,                                  \
-        "The resource cache size in MB")                                      \
+        "The resource cache size in MiB")                                      \
+release(size_t, GPU_MAX_RESOURCE_CACHE_SIZE, 16777216,                        \
+        "The max resource cache size in MiB")                                  \
 release(size_t, GPU_MAX_SUBALLOC_SIZE, 4096,                                  \
         "The maximum size accepted for suballocations in KB")                 \
 release(size_t, GPU_NUM_MEM_DEPENDENCY, 256,                                  \