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2007-11-09 Joel Sherrill <joel.sherrill@OARcorp.com>

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* sapi/src/exinit.c, score/Makefile.am,
	score/include/rtems/score/apimutex.h: API Mutex calls should never
	have been inlined. Inlining them lead to many inlined copies of core
	mutex lock. This lead to over 2K savings in the SPARC/ERC32
	minimum.exe.
	* score/src/apimutex.c, score/src/apimutexallocate.c,
	score/src/apimutexlock.c, score/src/apimutexunlock.c: New files.
This commit is contained in:
Joel Sherrill
2007-11-09 15:21:20 +00:00
parent 1c91942d25
commit 8fd28d8302
8 changed files with 172 additions and 55 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cpukit/ChangeLog
+10
View File
@@ -1,3 +1,13 @@
2007-11-09 Joel Sherrill <joel.sherrill@OARcorp.com>
* sapi/src/exinit.c, score/Makefile.am,
score/include/rtems/score/apimutex.h: API Mutex calls should never
have been inlined. Inlining them lead to many inlined copies of core
mutex lock. This lead to over 2K savings in the SPARC/ERC32
minimum.exe.
* score/src/apimutex.c, score/src/apimutexallocate.c,
score/src/apimutexlock.c, score/src/apimutexunlock.c: New files.
2007-11-07 Till Straumann <strauman@slac.stanford.edu>
* score/include/rtems/score/isr.h: added RTEMS_COMPILER_MEMORY_BARRIER
cpukit/sapi/src/exinit.c
+1 -1
View File
@@ -168,7 +168,7 @@ rtems_interrupt_level rtems_initialize_executive_early(
* Initialize the internal allocator Mutex
*/
_API_Mutex_Initialization( 1 );
_API_Mutex_Allocate( _RTEMS_Allocator_Mutex );
_API_Mutex_Allocate( &_RTEMS_Allocator_Mutex );
_Priority_Handler_initialization();
cpukit/score/Makefile.am
+4
View File
@@ -73,6 +73,10 @@ if HAS_MP
libscore_a_SOURCES += src/mpci.c src/objectmp.c src/threadmp.c
endif
## CORE_APIMUTEX_C_FILES
libscore_a_SOURCES += src/apimutex.c src/apimutexallocate.c \
src/apimutexlock.c src/apimutexunlock.c
## CORE_BARRIER_C_FILES
libscore_a_SOURCES += src/corebarrier.c src/corebarrierrelease.c \
src/corebarrierwait.c
cpukit/score/include/rtems/score/apimutex.h
+16 -54
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@@ -7,7 +7,7 @@
*/
/*
* COPYRIGHT (c) 1989-2006.
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
@@ -56,77 +56,39 @@ SCORE_EXTERN Objects_Information _API_Mutex_Information;
/**
* This routine performs the initialization necessary for this handler.
*
* @param[in] _maximum_mutexes is the maximum number of API mutexes
* @param[in] maximum_mutexes is the maximum number of API mutexes
* that may exist at any time
*/
#if defined(RTEMS_MULTIPROCESSING)
#define _API_Mutex_Initialization( _maximum_mutexes ) \
_Objects_Initialize_information( \
&_API_Mutex_Information, \
OBJECTS_INTERNAL_API, \
OBJECTS_INTERNAL_MUTEXES, \
_maximum_mutexes, \
sizeof( API_Mutex_Control ), \
FALSE, \
0, \
FALSE, \
NULL \
);
#else
#define _API_Mutex_Initialization( _maximum_mutexes ) \
_Objects_Initialize_information( \
&_API_Mutex_Information, \
OBJECTS_INTERNAL_API, \
OBJECTS_INTERNAL_MUTEXES, \
_maximum_mutexes, \
sizeof( API_Mutex_Control ), \
FALSE, \
0 \
);
#endif
void _API_Mutex_Initialization(
uint32_t maximum_mutexes
);
/**
* This routine allocates an API mutex from the inactive set.
*
* @param[out] _the_mutex will contain the allocated mutex.
* @param[out] the_mutex will contain the allocated mutex.
*/
#define _API_Mutex_Allocate( _the_mutex ) \
do { \
CORE_mutex_Attributes attr = \
{ CORE_MUTEX_NESTING_IS_ERROR, FALSE, \
CORE_MUTEX_DISCIPLINES_PRIORITY_INHERIT, 0 }; \
(_the_mutex) = (API_Mutex_Control *) \
_Objects_Allocate( &_API_Mutex_Information ); \
_CORE_mutex_Initialize( \
&(_the_mutex)->Mutex, &attr, CORE_MUTEX_UNLOCKED ); \
} while (0)
void _API_Mutex_Allocate(
API_Mutex_Control **the_mutex
);
/**
* This routine acquires the specified API mutex.
*
* @param[in] _the_mutex is the mutex to acquire.
* @param[in] the_mutex is the mutex to acquire.
*/
#define _API_Mutex_Lock( _the_mutex ) \
do { \
ISR_Level _level; \
_ISR_Disable( _level ); \
_CORE_mutex_Seize( \
&(_the_mutex)->Mutex, (_the_mutex)->Object.id, TRUE, 0, (_level) ); \
} while (0)
void _API_Mutex_Lock(
API_Mutex_Control *the_mutex
);
/**
* This routine releases the specified API mutex.
*
* @param[in] _the_mutex is the mutex to release.
*/
#define _API_Mutex_Unlock( _the_mutex ) \
do { \
_Thread_Disable_dispatch(); \
_CORE_mutex_Surrender( \
&(_the_mutex)->Mutex, (_the_mutex)->Object.id, NULL ); \
_Thread_Enable_dispatch(); \
} while (0);
void _API_Mutex_Unlock(
API_Mutex_Control *the_mutex
);
/**
* This variable points to the API Mutex instance that is used
cpukit/score/src/apimutex.c
+37
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@@ -0,0 +1,37 @@
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/score/apimutex.h>
void _API_Mutex_Initialization(
uint32_t maximum_mutexes
)
{
_Objects_Initialize_information(
&_API_Mutex_Information, /* object information table */
OBJECTS_INTERNAL_API, /* object API */
OBJECTS_INTERNAL_MUTEXES, /* object class */
maximum_mutexes, /* maximum objects of this class */
sizeof( API_Mutex_Control ), /* size of this object's control block */
FALSE, /* TRUE if the name is a string */
0 /* maximum length of an object name */
#if defined(RTEMS_MULTIPROCESSING)
,
TRUE, /* TRUE if this is a global object class */
NULL /* Proxy extraction support callout */
#endif
);
}
cpukit/score/src/apimutexallocate.c
+40
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@@ -0,0 +1,40 @@
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/score/apimutex.h>
void _API_Mutex_Allocate(
API_Mutex_Control **the_mutex
)
{
API_Mutex_Control *mutex;
CORE_mutex_Attributes attr = {
CORE_MUTEX_NESTING_IS_ERROR,
FALSE,
CORE_MUTEX_DISCIPLINES_PRIORITY_INHERIT,
0
};
mutex = (API_Mutex_Control *) _Objects_Allocate( &_API_Mutex_Information );
_CORE_mutex_Initialize(
&mutex->Mutex,
&attr,
CORE_MUTEX_UNLOCKED
);
*the_mutex = mutex;
}
cpukit/score/src/apimutexlock.c
+30
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@@ -0,0 +1,30 @@
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/score/apimutex.h>
void _API_Mutex_Unlock(
API_Mutex_Control *the_mutex
)
{
_Thread_Disable_dispatch();
_CORE_mutex_Surrender(
&the_mutex->Mutex,
the_mutex->Object.id,
NULL
);
_Thread_Enable_dispatch();
}
cpukit/score/src/apimutexunlock.c
+34
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@@ -0,0 +1,34 @@
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/score/apimutex.h>
void _API_Mutex_Lock(
API_Mutex_Control *the_mutex
)
{
ISR_Level level;
_ISR_Disable( level );
_CORE_mutex_Seize(
&the_mutex->Mutex,
the_mutex->Object.id,
TRUE,
0,
level
);
}