Enable midthread preemption after the setup is completed

previous: enable midthread preemption <...> csr base <...> pipe control + debug control 2 pipe control + VFE state after: <...> csr base <...> pipe control + debug control 2 pipe control + VFE state enable midthread preemption This is to avoid a race condition and prevent midthread preemption until the setup is completed. Change-Id: Icfc1fc839f89e7c51d8e760e544839639fd7d983 Signed-off-by: James Xiong <[email protected]>
intel · Oct 8, 2019 · e6d9b38 · e6d9b38
1 parent 50f4029
commit e6d9b38
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/runtime/command_stream/command_stream_receiver_hw_base.inl b/runtime/command_stream/command_stream_receiver_hw_base.inl
@@ -259,7 +259,6 @@ CompletionStamp CommandStreamReceiverHw<GfxFamily>::flushTask(
     }
 
     initPageTableManagerRegisters(commandStreamCSR);
-    programPreemption(commandStreamCSR, dispatchFlags);
     programComputeMode(commandStreamCSR, dispatchFlags);
     programL3(commandStreamCSR, dispatchFlags, newL3Config);
     programPipelineSelect(commandStreamCSR, dispatchFlags.pipelineSelectArgs);
@@ -275,6 +274,8 @@ CompletionStamp CommandStreamReceiverHw<GfxFamily>::flushTask(
 
     programVFEState(commandStreamCSR, dispatchFlags, device.getDeviceInfo().maxFrontEndThreads);
 
+    programPreemption(commandStreamCSR, dispatchFlags);
+
     bool dshDirty = dshState.updateAndCheck(&dsh);
     bool iohDirty = iohState.updateAndCheck(&ioh);
     bool sshDirty = sshState.updateAndCheck(&ssh);