xnu-6153.11.26.tar.gz

[apple/xnu.git] / iokit / Kernel / IOInterruptAccounting.cpp

diff --git a/iokit/Kernel/IOInterruptAccounting.cpp b/iokit/Kernel/IOInterruptAccounting.cpp
index 8130cce23bc6daee4dedfc5277d11df6a9683ff2..3d7f57cdbcb4545bd3cda2415bad64f0dfa682d4 100644 (file)
--- a/iokit/Kernel/IOInterruptAccounting.cpp
+++ b/iokit/Kernel/IOInterruptAccounting.cpp
@@ -2,7 +2,7 @@
  * Copyright (c) 2014 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * Copyright (c) 2014 Apple Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

- * 
+ *

  * 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
  * 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


@@ -11,10 +11,10 @@
  * 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.
  * 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.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 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,
  * 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,


@@ -22,7 +22,7 @@
  * 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.
  * 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_OSREFERENCE_LICENSE_HEADER_END@
  */
 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 


@@ -30,22 +30,26 @@
 #include <IOKit/IOKernelReporters.h>
 
 uint32_t gInterruptAccountingStatisticBitmask =
 #include <IOKit/IOKernelReporters.h>
 
 uint32_t gInterruptAccountingStatisticBitmask =

-       /* Disable timestamps for older ARM platforms; they are expensive. */
-       IA_GET_ENABLE_BIT(kInterruptAccountingFirstLevelTimeIndex) |
-       IA_GET_ENABLE_BIT(kInterruptAccountingSecondLevelCPUTimeIndex) |
-       IA_GET_ENABLE_BIT(kInterruptAccountingSecondLevelSystemTimeIndex) |
-       IA_GET_ENABLE_BIT(kInterruptAccountingFirstLevelCountIndex) |
-       IA_GET_ENABLE_BIT(kInterruptAccountingSecondLevelCountIndex);
+#if !defined(__arm__)
+    /* Disable timestamps for older ARM platforms; they are expensive. */
+    IA_GET_ENABLE_BIT(kInterruptAccountingFirstLevelTimeIndex) |
+    IA_GET_ENABLE_BIT(kInterruptAccountingSecondLevelCPUTimeIndex) |
+    IA_GET_ENABLE_BIT(kInterruptAccountingSecondLevelSystemTimeIndex) |
+#endif
+    IA_GET_ENABLE_BIT(kInterruptAccountingFirstLevelCountIndex) |
+    IA_GET_ENABLE_BIT(kInterruptAccountingSecondLevelCountIndex);

 
 IOLock * gInterruptAccountingDataListLock = NULL;
 queue_head_t gInterruptAccountingDataList;
 
 
 IOLock * gInterruptAccountingDataListLock = NULL;
 queue_head_t gInterruptAccountingDataList;
 

-void interruptAccountingInit(void)
+void
+interruptAccountingInit(void)

 {
        int bootArgValue = 0;
 
 {
        int bootArgValue = 0;
 

-       if (PE_parse_boot_argn("interrupt_accounting", &bootArgValue, sizeof(bootArgValue)))
-                gInterruptAccountingStatisticBitmask = bootArgValue;
+       if (PE_parse_boot_argn("interrupt_accounting", &bootArgValue, sizeof(bootArgValue))) {
+               gInterruptAccountingStatisticBitmask = bootArgValue;
+       }

 
        gInterruptAccountingDataListLock = IOLockAlloc();
 
 
        gInterruptAccountingDataListLock = IOLockAlloc();
 


@@ -54,37 +58,42 @@ void interruptAccountingInit(void)
        queue_init(&gInterruptAccountingDataList);
 }
 
        queue_init(&gInterruptAccountingDataList);
 }
 

-void interruptAccountingDataAddToList(IOInterruptAccountingData * data)
+void
+interruptAccountingDataAddToList(IOInterruptAccountingData * data)

 {
        IOLockLock(gInterruptAccountingDataListLock);
 {
        IOLockLock(gInterruptAccountingDataListLock);

-       queue_enter(&gInterruptAccountingDataList, data, IOInterruptAccountingData *, chain); 
+       queue_enter(&gInterruptAccountingDataList, data, IOInterruptAccountingData *, chain);

        IOLockUnlock(gInterruptAccountingDataListLock);
 }
 
        IOLockUnlock(gInterruptAccountingDataListLock);
 }
 

-void interruptAccountingDataRemoveFromList(IOInterruptAccountingData * data)
+void
+interruptAccountingDataRemoveFromList(IOInterruptAccountingData * data)

 {
        IOLockLock(gInterruptAccountingDataListLock);
 {
        IOLockLock(gInterruptAccountingDataListLock);

-       queue_remove(&gInterruptAccountingDataList, data, IOInterruptAccountingData *, chain); 
+       queue_remove(&gInterruptAccountingDataList, data, IOInterruptAccountingData *, chain);

        IOLockUnlock(gInterruptAccountingDataListLock);
 }
 
        IOLockUnlock(gInterruptAccountingDataListLock);
 }
 

-void interruptAccountingDataUpdateChannels(IOInterruptAccountingData * data, IOSimpleReporter * reporter)
+void
+interruptAccountingDataUpdateChannels(IOInterruptAccountingData * data, IOSimpleReporter * reporter)

 {
        uint64_t i = 0;
 
        for (i = 0; i < IA_NUM_INTERRUPT_ACCOUNTING_STATISTICS; i++) {
 {
        uint64_t i = 0;
 
        for (i = 0; i < IA_NUM_INTERRUPT_ACCOUNTING_STATISTICS; i++) {

-               if (IA_GET_STATISTIC_ENABLED(i))
-               reporter->setValue(IA_GET_CHANNEL_ID(data->interruptIndex, i), data->interruptStatistics[i]);
+               if (IA_GET_STATISTIC_ENABLED(i)) {
+                       reporter->setValue(IA_GET_CHANNEL_ID(data->interruptIndex, i), data->interruptStatistics[i]);
+               }

        }
 }
 
        }
 }
 

-void interruptAccountingDataInheritChannels(IOInterruptAccountingData * data, IOSimpleReporter * reporter)
+void
+interruptAccountingDataInheritChannels(IOInterruptAccountingData * data, IOSimpleReporter * reporter)

 {
        uint64_t i = 0;
 
        for (i = 0; i < IA_NUM_INTERRUPT_ACCOUNTING_STATISTICS; i++) {
 {
        uint64_t i = 0;
 
        for (i = 0; i < IA_NUM_INTERRUPT_ACCOUNTING_STATISTICS; i++) {

-               if (IA_GET_STATISTIC_ENABLED(i))
-               data->interruptStatistics[i] = reporter->getValue(IA_GET_CHANNEL_ID(data->interruptIndex, i));
+               if (IA_GET_STATISTIC_ENABLED(i)) {
+                       data->interruptStatistics[i] = reporter->getValue(IA_GET_CHANNEL_ID(data->interruptIndex, i));
+               }

        }
 }
        }
 }

-