From 378eccc6ea5a53500eabe1d396e39d1d1a7d9d33 Mon Sep 17 00:00:00 2001
From: refractionpcsx2 <refraction@gmail.com>
Date: Thu, 3 Dec 2020 17:53:02 +0000
Subject: [PATCH] IPU: Stop IPU0 looping when there's no data for it to read
 Fixes bad slowdowns in Ratchet games when using EE Timing fix caused by bad
 IPU streams

---
 pcsx2/IPU/IPU_Fifo.cpp | 3 ++-
 pcsx2/IPU/IPUdma.cpp   | 1 -
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/pcsx2/IPU/IPU_Fifo.cpp b/pcsx2/IPU/IPU_Fifo.cpp
index a1f53b7487..3361c3d114 100644
--- a/pcsx2/IPU/IPU_Fifo.cpp
+++ b/pcsx2/IPU/IPU_Fifo.cpp
@@ -125,7 +125,8 @@ int IPU_Fifo_Output::write(const u32 *value, uint size)
 			--transsize;
 		}
 	/*} while(true);*/
-
+	if(ipu0ch.chcr.STR)
+		IPU_INT_FROM(64);
 	return origsize - size;
 }
 
diff --git a/pcsx2/IPU/IPUdma.cpp b/pcsx2/IPU/IPUdma.cpp
index 0387a125b5..d9cd6f2d02 100644
--- a/pcsx2/IPU/IPUdma.cpp
+++ b/pcsx2/IPU/IPUdma.cpp
@@ -196,7 +196,6 @@ void IPU0dma()
 {
 	if(!ipuRegs.ctrl.OFC) 
 	{
-		IPU_INT_FROM( 64 );
 		IPUProcessInterrupt();
 		return;
 	}