diff options
Diffstat (limited to '')
| -rw-r--r-- | cpukit/score/src/wkspace.c | 125 |
1 files changed, 26 insertions, 99 deletions
diff --git a/cpukit/score/src/wkspace.c b/cpukit/score/src/wkspace.c index 546847b82d..3309658dff 100644 --- a/cpukit/score/src/wkspace.c +++ b/cpukit/score/src/wkspace.c @@ -1,21 +1,37 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + /** * @file * * @ingroup RTEMSScoreWorkspace * - * @brief This source file contains the definition of ::_Workspace_Area, the - * implementation of _Workspace_Handler_initialization(), - * _Workspace_Allocate(), and _Workspace_Free(), and the Workspace Handler - * system initialization. + * @brief This source file contains the definition of ::_Workspace_Area and the + * Workspace Handler system initialization. */ /* - * COPYRIGHT (c) 1989-2009. - * On-Line Applications Research Corporation (OAR). + * Copyright (C) 2020 embedded brains GmbH & Co. KG + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. */ #ifdef HAVE_CONFIG_H @@ -23,101 +39,12 @@ #endif #include <rtems/score/wkspace.h> -#include <rtems/score/assert.h> -#include <rtems/score/heapimpl.h> -#include <rtems/score/interr.h> -#include <rtems/config.h> #include <rtems/sysinit.h> Heap_Control _Workspace_Area; -static void _Workspace_Initialize( void ) -{ - _Workspace_Handler_initialization( _Memory_Get(), _Heap_Extend ); -} - RTEMS_SYSINIT_ITEM( - _Workspace_Initialize, + _Workspace_Handler_initialization, RTEMS_SYSINIT_WORKSPACE, RTEMS_SYSINIT_ORDER_MIDDLE ); - -void _Workspace_Handler_initialization( - const Memory_Information *mem, - Heap_Initialization_or_extend_handler extend -) -{ - Heap_Initialization_or_extend_handler init_or_extend; - uintptr_t remaining; - bool unified; - uintptr_t page_size; - uintptr_t overhead; - size_t i; - - page_size = CPU_HEAP_ALIGNMENT; - remaining = rtems_configuration_get_work_space_size(); - init_or_extend = _Heap_Initialize; - unified = rtems_configuration_get_unified_work_area(); - overhead = _Heap_Area_overhead( page_size ); - - for ( i = 0; i < _Memory_Get_count( mem ); ++i ) { - Memory_Area *area; - uintptr_t free_size; - - area = _Memory_Get_area( mem, i ); - free_size = _Memory_Get_free_size( area ); - - if ( free_size > overhead ) { - uintptr_t space_available; - uintptr_t size; - - if ( unified ) { - size = free_size; - } else { - if ( remaining > 0 ) { - size = remaining < free_size - overhead ? - remaining + overhead : free_size; - } else { - size = 0; - } - } - - space_available = ( *init_or_extend )( - &_Workspace_Area, - _Memory_Get_free_begin( area ), - size, - page_size - ); - - _Memory_Consume( area, size ); - - if ( space_available < remaining ) { - remaining -= space_available; - } else { - remaining = 0; - } - - init_or_extend = extend; - } - } - - if ( remaining > 0 ) { - _Internal_error( INTERNAL_ERROR_TOO_LITTLE_WORKSPACE ); - } - - _Heap_Protection_set_delayed_free_fraction( &_Workspace_Area, 1 ); -} - -void *_Workspace_Allocate( size_t size ) -{ - return _Heap_Allocate( &_Workspace_Area, size ); -} - -void _Workspace_Free( void *block ) -{ - bool ok; - - ok = _Heap_Free( &_Workspace_Area, block ); - _Assert( ok ); - (void) ok; -} |