[L0] Fix regression on fence host sync

aravindksg · aravindksg · commit 28c114e70071 · 2020-03-06T16:07:29.000-08:00
Change-Id: I769212c4e7478959b0e9a126064eb0ab09a3f183
Signed-off-by: Aravind Gopalakrishnan &lt;Aravind.Gopalakrishnan@intel.com&gt;
diff --git a/level_zero/core/source/fence.cpp b/level_zero/core/source/fence.cpp
@@ -11,6 +11,8 @@
 #include "shared/source/memory_manager/memory_manager.h"
 #include "shared/source/utilities/cpuintrinsics.h"
 
+#include "hw_helpers.h"
+
 namespace L0 {
 
 struct FenceImp : public Fence {
@@ -89,6 +91,8 @@ ze_result_t FenceImp::hostSynchronize(uint32_t timeout) {
         return ZE_RESULT_SUCCESS;
     }
 
+    waitForTaskCountWithKmdNotifyFallbackHelper(cmdQueue->getCsr(), cmdQueue->getTaskCount(), 0, false, false);
+
     if (timeout == 0) {
         return queryStatus();
     }

Original file line number	Diff line number	Diff line change
`@@ -11,6 +11,8 @@`
`11`	`11`	`#include "shared/source/memory_manager/memory_manager.h"`
`12`	`12`	`#include "shared/source/utilities/cpuintrinsics.h"`
`13`	`13`
	`14`	`+#include "hw_helpers.h"`
	`15`	`+`
`14`	`16`	`namespace L0 {`
`15`	`17`
`16`	`18`	`struct FenceImp : public Fence {`
`@@ -89,6 +91,8 @@ ze_result_t FenceImp::hostSynchronize(uint32_t timeout) {`
`89`	`91`	`return ZE_RESULT_SUCCESS;`
`90`	`92`	`}`
`91`	`93`
	`94`	`+ waitForTaskCountWithKmdNotifyFallbackHelper(cmdQueue->getCsr(), cmdQueue->getTaskCount(), 0, false, false);`
	`95`	`+`
`92`	`96`	`if (timeout == 0) {`
`93`	`97`	`return queryStatus();`
`94`	`98`	`}`