From 279c657cda7772a39f318b5df68fb279bb0400b4 Mon Sep 17 00:00:00 2001
From: degasus <markus@selfnet.de>
Date: Thu, 5 Mar 2015 17:12:24 +0100
Subject: Fifo: Replace busy loop with condition variable

---
 Source/Core/VideoCommon/CommandProcessor.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'Source/Core/VideoCommon/CommandProcessor.cpp')

diff --git a/Source/Core/VideoCommon/CommandProcessor.cpp b/Source/Core/VideoCommon/CommandProcessor.cpp
index b53c50fc2e..21ef0be2a9 100644
--- a/Source/Core/VideoCommon/CommandProcessor.cpp
+++ b/Source/Core/VideoCommon/CommandProcessor.cpp
@@ -322,10 +322,7 @@ void GatherPipeBursted()
 				ProcessFifoAllDistance();
 			}
 		}
-		else
-		{
-			RunGpu();
-		}
+		RunGpu();
 		return;
 	}
 
@@ -375,6 +372,7 @@ void UpdateInterrupts(u64 userdata)
 	}
 	CoreTiming::ForceExceptionCheck(0);
 	interruptWaiting = false;
+	RunGpu();
 }
 
 void UpdateInterruptsFromVideoBackend(u64 userdata)
@@ -551,5 +549,7 @@ void Update()
 
 	if (fifo.isGpuReadingData)
 		Common::AtomicAdd(VITicks, SystemTimers::GetTicksPerSecond() / 10000);
+
+	RunGpu();
 }
 } // end of namespace CommandProcessor
-- 
cgit v1.2.3


From b020ae1c5db4e2e198d1beea91c75219a251a167 Mon Sep 17 00:00:00 2001
From: degasus <wickmarkus@web.de>
Date: Thu, 5 Mar 2015 21:14:46 +0100
Subject: Fifo: rewrite sync on idle skipping hack

Now it's done without a busy loop
---
 Source/Core/VideoCommon/CommandProcessor.cpp | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

(limited to 'Source/Core/VideoCommon/CommandProcessor.cpp')

diff --git a/Source/Core/VideoCommon/CommandProcessor.cpp b/Source/Core/VideoCommon/CommandProcessor.cpp
index 21ef0be2a9..162e3a2d53 100644
--- a/Source/Core/VideoCommon/CommandProcessor.cpp
+++ b/Source/Core/VideoCommon/CommandProcessor.cpp
@@ -40,7 +40,6 @@ static u16 m_bboxright;
 static u16 m_bboxbottom;
 static u16 m_tokenReg;
 
-volatile bool isPossibleWaitingSetDrawDone = false;
 volatile bool interruptSet= false;
 volatile bool interruptWaiting= false;
 volatile bool interruptTokenWaiting = false;
@@ -70,7 +69,6 @@ void DoState(PointerWrap &p)
 	p.Do(m_tokenReg);
 	p.Do(fifo);
 
-	p.Do(isPossibleWaitingSetDrawDone);
 	p.Do(interruptSet);
 	p.Do(interruptWaiting);
 	p.Do(interruptTokenWaiting);
@@ -123,8 +121,6 @@ void Init()
 	interruptFinishWaiting = false;
 	interruptTokenWaiting = false;
 
-	isPossibleWaitingSetDrawDone = false;
-
 	et_UpdateInterrupts = CoreTiming::RegisterEvent("CPInterrupt", UpdateInterrupts_Wrapper);
 }
 
@@ -319,7 +315,7 @@ void GatherPipeBursted()
 			    (ProcessorInterface::Fifo_CPUBase == fifo.CPBase) &&
 			    fifo.CPReadWriteDistance > 0)
 			{
-				ProcessFifoAllDistance();
+				FlushGpu();
 			}
 		}
 		RunGpu();
@@ -468,15 +464,6 @@ void SetCPStatusFromCPU()
 	}
 }
 
-void ProcessFifoAllDistance()
-{
-	if (IsOnThread())
-	{
-		while (!interruptWaiting && fifo.bFF_GPReadEnable && fifo.CPReadWriteDistance && !AtBreakpoint())
-			Common::YieldCPU();
-	}
-}
-
 void ProcessFifoEvents()
 {
 	if (IsOnThread() && (interruptWaiting || interruptFinishWaiting || interruptTokenWaiting))
@@ -518,7 +505,7 @@ void SetCpControlRegister()
 	if (fifo.bFF_GPReadEnable && !m_CPCtrlReg.GPReadEnable)
 	{
 		fifo.bFF_GPReadEnable = m_CPCtrlReg.GPReadEnable;
-		while (fifo.isGpuReadingData) Common::YieldCPU();
+		FlushGpu();
 	}
 	else
 	{
-- 
cgit v1.2.3


From d2c62b17445b666b81a19cb3a6c46f9ee2d1388e Mon Sep 17 00:00:00 2001
From: degasus <wickmarkus@web.de>
Date: Fri, 13 Mar 2015 23:36:31 +0100
Subject: Fifo: only sleep once within every ms of emulated time

---
 Source/Core/VideoCommon/CommandProcessor.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'Source/Core/VideoCommon/CommandProcessor.cpp')

diff --git a/Source/Core/VideoCommon/CommandProcessor.cpp b/Source/Core/VideoCommon/CommandProcessor.cpp
index 162e3a2d53..2c6660e1f8 100644
--- a/Source/Core/VideoCommon/CommandProcessor.cpp
+++ b/Source/Core/VideoCommon/CommandProcessor.cpp
@@ -45,6 +45,8 @@ volatile bool interruptWaiting= false;
 volatile bool interruptTokenWaiting = false;
 volatile bool interruptFinishWaiting = false;
 
+Common::Flag s_gpuMaySleep;
+
 volatile u32 VITicks = CommandProcessor::m_cpClockOrigin;
 
 static bool IsOnThread()
-- 
cgit v1.2.3