From 68a7a53f6ba91ad4fc47946575d2abb510cd540a Mon Sep 17 00:00:00 2001
From: elad335 <18193363+elad335@users.noreply.github.com>
Date: Thu, 24 Oct 2024 13:55:19 +0300
Subject: [PATCH] RawSpu: Optimize START register/commands

START MFC proxy commands can be common even after their need, optimize their usage.
---
 rpcs3/Emu/Cell/RawSPUThread.cpp | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/rpcs3/Emu/Cell/RawSPUThread.cpp b/rpcs3/Emu/Cell/RawSPUThread.cpp
index 91a1166eaa..dd621ae088 100644
--- a/rpcs3/Emu/Cell/RawSPUThread.cpp
+++ b/rpcs3/Emu/Cell/RawSPUThread.cpp
@@ -7,20 +7,30 @@
 
 inline void try_start(spu_thread& spu)
 {
-	reader_lock lock(spu.run_ctrl_mtx);
+	bool notify = false;
 
-	if (spu.status_npc.fetch_op([](spu_thread::status_npc_sync_var& value)
+	if (~spu.status_npc.load().status & SPU_STATUS_RUNNING)
 	{
-		if (value.status & SPU_STATUS_RUNNING)
+		reader_lock lock(spu.run_ctrl_mtx);
+
+		if (spu.status_npc.fetch_op([](spu_thread::status_npc_sync_var& value)
 		{
-			return false;
-		}
+			if (value.status & SPU_STATUS_RUNNING)
+			{
+				return false;
+			}
 
-		value.status = SPU_STATUS_RUNNING | (value.status & SPU_STATUS_IS_ISOLATED);
-		return true;
-	}).second)
+			value.status = SPU_STATUS_RUNNING | (value.status & SPU_STATUS_IS_ISOLATED);
+			return true;
+		}).second)
+		{
+			spu.state -= cpu_flag::stop;
+			notify = true;
+		}
+	}
+
+	if (notify)
 	{
-		spu.state -= cpu_flag::stop;
 		spu.state.notify_one();
 	}
 };