From d6b5433f14a8aa1d203689e2919df65600298abf Mon Sep 17 00:00:00 2001
From: "Zdanowicz, Zbigniew" <zbigniew.zdanowicz@intel.com>
Date: Mon, 12 Feb 2018 16:53:20 +0100
Subject: [PATCH] Lower Windows minimal address to 16kB

Change-Id: I138438943d438ace0b5d76e04f3af8d9541d532a
---
 runtime/os_interface/windows/windows_defs.h    |  2 +-
 unit_tests/os_interface/windows/wddm_tests.cpp | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/runtime/os_interface/windows/windows_defs.h b/runtime/os_interface/windows/windows_defs.h
index d94d5730af..50c7ae0a06 100644
--- a/runtime/os_interface/windows/windows_defs.h
+++ b/runtime/os_interface/windows/windows_defs.h
@@ -24,6 +24,6 @@
 
 namespace OCLRT {
 
-constexpr uintptr_t windowsMinAddress = 0x200000;
+constexpr uintptr_t windowsMinAddress = 0x4000;
 
 } // namespace OCLRT
diff --git a/unit_tests/os_interface/windows/wddm_tests.cpp b/unit_tests/os_interface/windows/wddm_tests.cpp
index ec352d5bc3..0feb5f5feb 100644
--- a/unit_tests/os_interface/windows/wddm_tests.cpp
+++ b/unit_tests/os_interface/windows/wddm_tests.cpp
@@ -37,6 +37,18 @@
 
 using namespace OCLRT;
 
+HWTEST_F(WddmTestSingle, givenMinWindowsAddressWhenWddmIsInitializedThenWddmUseThisAddress) {
+    uintptr_t expectedAddress = 0x4000;
+    EXPECT_EQ(expectedAddress, OCLRT::windowsMinAddress);
+    Wddm *wddm = Wddm::createWddm();
+
+    bool status = wddm->init<FamilyType>();
+    EXPECT_TRUE(status);
+    EXPECT_TRUE(wddm->isInitialized());
+    EXPECT_EQ(expectedAddress, wddm->getWddmMinAddress());
+    delete wddm;
+}
+
 HWTEST_F(WddmTestSingle, creation) {
     Wddm *wddm = Wddm::createWddm();