X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/378393581903b274cb7a4d18e0d978071a6b592d..7ee9d059c4eecf68ae4f8b0fb99ae2471eda79af:/iokit/Kernel/IOFilterInterruptEventSource.cpp

diff --git a/iokit/Kernel/IOFilterInterruptEventSource.cpp b/iokit/Kernel/IOFilterInterruptEventSource.cpp
index eb818ccec..944e84ced 100644
--- a/iokit/Kernel/IOFilterInterruptEventSource.cpp
+++ b/iokit/Kernel/IOFilterInterruptEventSource.cpp
@@ -1,61 +1,55 @@
 /*
- * Copyright (c) 1998-2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1998-2010 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
  * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
-/*
-Copyright (c) 1999 Apple Computer, Inc.  All rights reserved.
 
-HISTORY
-    1999-4-15	Godfrey van der Linden(gvdl)
-        Created.
-*/
 #include <IOKit/IOFilterInterruptEventSource.h>
 #include <IOKit/IOService.h>
+#include <IOKit/IOKitDebug.h>
 #include <IOKit/IOTimeStamp.h>
 #include <IOKit/IOWorkLoop.h>
 
-#if KDEBUG
+#if IOKITSTATS
 
-#define IOTimeTypeStampS(t)						\
-do {									\
-    IOTimeStampStart(IODBG_INTES(t),					\
-                     (unsigned int) this, (unsigned int) owner);	\
-} while(0)
+#define IOStatisticsInitializeCounter() \
+do { \
+	IOStatistics::setCounterType(IOEventSource::reserved->counter, kIOStatisticsFilterInterruptEventSourceCounter); \
+} while (0)
 
-#define IOTimeTypeStampE(t)						\
-do {									\
-    IOTimeStampEnd(IODBG_INTES(t),					\
-                   (unsigned int) this, (unsigned int) owner);		\
-} while(0)
+#define IOStatisticsInterrupt() \
+do { \
+	IOStatistics::countInterrupt(IOEventSource::reserved->counter); \
+} while (0)
 
-#define IOTimeStampLatency()						\
-do {									\
-    IOTimeStampEnd(IODBG_INTES(IOINTES_LAT),				\
-                   (unsigned int) this, (unsigned int) owner);		\
-} while(0)
+#else
 
-#else /* !KDEBUG */
-#define IOTimeTypeStampS(t)
-#define IOTimeTypeStampE(t)
-#define IOTimeStampLatency()
-#endif /* KDEBUG */
+#define IOStatisticsInitializeCounter()
+#define IOStatisticsInterrupt()
+
+#endif /* IOKITSTATS */
 
 #define super IOInterruptEventSource
 
@@ -104,6 +98,9 @@ IOFilterInterruptEventSource::init(OSObject *inOwner,
         return false;
 
     filterAction = inFilterAction;
+
+    IOStatisticsInitializeCounter();
+	
     return true;
 }
 
@@ -127,13 +124,19 @@ IOFilterInterruptEventSource *IOFilterInterruptEventSource
 
 void IOFilterInterruptEventSource::signalInterrupt()
 {
-IOTimeStampLatency();
-
+	bool trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+    
+    IOStatisticsInterrupt();
     producerCount++;
-
-IOTimeTypeStampS(IOINTES_SEMA);
+	
+	if (trace)
+	    IOTimeStampStartConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+    
     signalWorkAvailable();
-IOTimeTypeStampE(IOINTES_SEMA);
+	
+	if (trace)
+	    IOTimeStampEndConstant(IODBG_INTES(IOINTES_SEMA), (uintptr_t) this, (uintptr_t) owner);
+	
 }
 
 
@@ -149,39 +152,43 @@ IOFilterInterruptEventSource::getFilterAction() const
 void IOFilterInterruptEventSource::normalInterruptOccurred
     (void */*refcon*/, IOService */*prov*/, int /*source*/)
 {
-    bool filterRes;
-
-IOTimeTypeStampS(IOINTES_INTCTXT);
-
-IOTimeTypeStampS(IOINTES_INTFLTR);
-    IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER),
-                        (unsigned int) filterAction, (unsigned int) owner);
+    bool 	filterRes;
+	bool	trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+	
+	if (trace)
+		IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+								 (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+    
+    // Call the filter.
     filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
-
+	
+	if (trace)
+		IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+							   (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+	
     if (filterRes)
         signalInterrupt();
-
-IOTimeTypeStampE(IOINTES_INTCTXT);
 }
 
 void IOFilterInterruptEventSource::disableInterruptOccurred
     (void */*refcon*/, IOService *prov, int source)
 {
-    bool filterRes;
-
-IOTimeTypeStampS(IOINTES_INTCTXT);
-
-IOTimeTypeStampS(IOINTES_INTFLTR);
-    IOTimeStampConstant(IODBG_INTES(IOINTES_FILTER),
-                        (unsigned int) filterAction, (unsigned int) owner);
+    bool 	filterRes;
+	bool	trace = (gIOKitTrace & kIOTraceIntEventSource) ? true : false;
+	
+	if (trace)
+		IOTimeStampStartConstant(IODBG_INTES(IOINTES_FILTER),
+								 (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+    
+    // Call the filter.
     filterRes = (*filterAction)(owner, this);
-IOTimeTypeStampE(IOINTES_INTFLTR);
-
+	
+	if (trace)
+		IOTimeStampEndConstant(IODBG_INTES(IOINTES_FILTER),
+							   (uintptr_t) filterAction, (uintptr_t) owner, (uintptr_t) this, (uintptr_t) workLoop);
+	
     if (filterRes) {
         prov->disableInterrupt(source);	/* disable the interrupt */
-
         signalInterrupt();
     }
-IOTimeTypeStampE(IOINTES_INTCTXT);
 }