Sysman Fix Multithread Access for zesMemoryGetState

Signed-off-by: Joshua Santosh Ranjan <[email protected]>

Related-To: LOCI-2727

Author: joshuaranjan

shared/source/os_interface/linux/drm_neo.h

@@ -248,6 +248,7 @@ class Drm : public DriverModel {
     uint32_t getPciDomain() {
         return pciDomain;
     }
+    MOCKABLE_VIRTUAL std::unique_ptr<uint8_t[]> getMemoryRegions();
 
   protected:
     Drm(std::unique_ptr<HwDeviceIdDrm> &&hwDeviceIdIn, RootDeviceEnvironment &rootDeviceEnvironment);

shared/source/os_interface/linux/drm_query.cpp

@@ -43,6 +43,10 @@ bool Drm::queryEngineInfo(bool isSysmanEnabled) {
     return false;
 }
 
+std::unique_ptr<uint8_t[]> Drm::getMemoryRegions() {
+    return nullptr;
+}
+
 bool Drm::queryMemoryInfo() {
     auto pHwInfo = getRootDeviceEnvironment().getHardwareInfo();
     auto isLocalMemSupported = HwHelper::get(pHwInfo->platform.eRenderCoreFamily).getEnableLocalMemory(*pHwInfo);

shared/test/unit_test/os_interface/linux/drm_query_tests.cpp

@@ -135,3 +135,11 @@ TEST(DrmQueryTest, givenDrmAllocationWhenShouldAllocationFaultIsCalledThenReturn
     MockDrmAllocation allocation(GraphicsAllocation::AllocationType::BUFFER, MemoryPool::MemoryNull);
     EXPECT_FALSE(allocation.shouldAllocationPageFault(&drm));
 }
+
+TEST(DrmQueryTest, givenDrmWhenGettingMemoryRegionsThenReturnNull) {
+    auto executionEnvironment = std::make_unique<ExecutionEnvironment>();
+    executionEnvironment->prepareRootDeviceEnvironments(1);
+    DrmMock drm{*executionEnvironment->rootDeviceEnvironments[0]};
+
+    EXPECT_EQ(drm.getMemoryRegions(), nullptr);
+}