kfdtest: Updated CWSR test for emulation

Added global flag g_IsEmuMode and set it when running under emulator.
Adjusted delays in KFDCWSRTest for emulator.

Change-Id: Ia5c0be40816ac2219add943e306ee16438f5b852
Signed-off-by: David Belanger <david.belanger@amd.com>

tests/kfdtest/src/KFDCWSRTest.cpp

@@ -80,6 +80,8 @@ TEST_P(KFDCWSRTest, BasicTest) {
     int num_witems = std::get<0>(GetParam());
     int cwsr_thresh = std::get<1>(GetParam());
     int defaultGPUNode = m_NodeInfo.HsaDefaultGPUNode();
+    // Increase delay on emulator by this factor.
+    const int delayMult = (g_IsEmuMode ? 20 : 1);
 
     if ((m_FamilyId >= FAMILY_VI) && (checkCWSREnabled())) {
         HsaMemoryBuffer isaBuffer(PAGE_SIZE, defaultGPUNode, true, false, true);
@@ -106,7 +108,7 @@ TEST_P(KFDCWSRTest, BasicTest) {
         dispatch.SetDim(num_witems, 1, 1);
         dispatch.Submit(queue);
 
-        Delay(5);
+        Delay(5 * delayMult);
 
         LOG() << "Starting iteration for " << std::dec << num_witems
               << " work items(s) (targeting " << std::dec << cwsr_thresh
@@ -117,12 +119,12 @@ TEST_P(KFDCWSRTest, BasicTest) {
             // Send dequeue request
             EXPECT_SUCCESS(queue.Update(0, BaseQueue::DEFAULT_PRIORITY, false));
 
-            Delay(5);
+            Delay(5 * delayMult);
 
             // Send requeue request
             EXPECT_SUCCESS(queue.Update(100, BaseQueue::DEFAULT_PRIORITY, false));
 
-            Delay(50);
+            Delay(50 * delayMult);
 
             // Check for reg mangling
             for (int i = 0; i < num_witems; i++) {

tests/kfdtest/src/KFDTestFlags.hpp

@@ -30,6 +30,7 @@ extern unsigned int g_TestTimeOut;
 extern int g_TestNodeId;
 extern int g_TestDstNodeId;
 extern bool g_IsChildProcess;
+extern bool g_IsEmuMode;
 
 // Each test should call TEST_START with the test custom profile and HW scheduling
 enum TESTPROFILE{

tests/kfdtest/src/KFDTestMain.cpp

@@ -53,6 +53,7 @@ unsigned int g_TestTimeOut;
 int g_TestNodeId;
 int g_TestDstNodeId;
 bool g_IsChildProcess;
+bool g_IsEmuMode;
 unsigned int g_SleepTime;
 unsigned int g_TestGPUFamilyId;
 class KFDBaseComponentTest *g_baseTest;
@@ -90,8 +91,15 @@ GTEST_API_ int main(int argc, char **argv) {
         g_TestNodeId = args.NodeId;
         g_TestDstNodeId = args.DstNodeId;
 
+        g_IsEmuMode = CheckEmuModeEnabled();
+
         LOG() << "Profile: " << (TESTPROFILE)g_TestRunProfile << std::endl;
         LOG() << "HW capabilities: 0x" << std::hex << g_TestENVCaps << std::endl;
+        if (g_IsEmuMode)
+        {
+            LOG() << "Emulation Mode Enabled" << std::endl;
+        }
+
         if (g_SleepTime > 0) {
             LOG() << "Sleep time in seconds as specified by user: " << std::dec << g_SleepTime << std::endl;
         }

tests/kfdtest/src/KFDTestUtil.cpp

@@ -95,6 +95,13 @@ void SplitU64(const HSAuint64 value, unsigned int& rLoPart, unsigned int& rHiPar
     rHiPart = static_cast<unsigned int>(value >> 32);
 }
 
+bool CheckEmuModeEnabled()
+{
+    uint32_t emu_mode = false;
+    fscanf_dec("/sys/module/amdgpu/parameters/emu_mode", &emu_mode);
+    return (emu_mode != 0);
+}
+
 bool GetHwCapabilityHWS() {
     unsigned int value = 0;
     bool valExists = ReadDriverConfigValue(CONFIG_HWS, value);

tests/kfdtest/src/KFDTestUtil.hpp

@@ -44,6 +44,8 @@ bool WaitOnValue(const volatile unsigned int *buf, unsigned int value, unsigned
 
 void SplitU64(const HSAuint64 value, unsigned int& rLoPart, unsigned int& rHiPart);
 
+bool CheckEmuModeEnabled();
+
 bool GetHwCapabilityHWS();
 
 HSAKMT_STATUS CreateQueueTypeEvent(bool ManualReset, bool IsSignaled, unsigned int NodeId, HsaEvent** Event);