[4c90eb4] | 1 | /** |
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| 2 | * @file |
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[842db5f3] | 3 | * |
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[4c90eb4] | 4 | * @brief RTEMS Partition Create |
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| 5 | * @ingroup ClassicPart Partitions |
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| 6 | */ |
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| 7 | |
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| 8 | /* |
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[3a638ce] | 9 | * COPYRIGHT (c) 1989-2014. |
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[842db5f3] | 10 | * On-Line Applications Research Corporation (OAR). |
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| 11 | * |
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| 12 | * The license and distribution terms for this file may be |
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| 13 | * found in the file LICENSE in this distribution or at |
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[c499856] | 14 | * http://www.rtems.org/license/LICENSE. |
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[842db5f3] | 15 | */ |
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| 16 | |
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[1095ec1] | 17 | #if HAVE_CONFIG_H |
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| 18 | #include "config.h" |
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| 19 | #endif |
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| 20 | |
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[8695cae] | 21 | #include <rtems/rtems/partimpl.h> |
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[3cf39238] | 22 | #include <rtems/rtems/attrimpl.h> |
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| 23 | #include <rtems/rtems/support.h> |
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| 24 | #include <rtems/score/threaddispatch.h> |
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[842db5f3] | 25 | #include <rtems/score/sysstate.h> |
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[21275b58] | 26 | #include <rtems/sysinit.h> |
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[842db5f3] | 27 | |
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| 28 | |
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| 29 | rtems_status_code rtems_partition_create( |
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[d3b72ca3] | 30 | rtems_name name, |
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| 31 | void *starting_address, |
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[66cb142] | 32 | uintptr_t length, |
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| 33 | size_t buffer_size, |
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[d3b72ca3] | 34 | rtems_attribute attribute_set, |
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| 35 | rtems_id *id |
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[842db5f3] | 36 | ) |
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| 37 | { |
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[23fec9f0] | 38 | Partition_Control *the_partition; |
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[842db5f3] | 39 | |
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| 40 | if ( !rtems_is_name_valid( name ) ) |
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| 41 | return RTEMS_INVALID_NAME; |
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| 42 | |
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[e980b219] | 43 | if ( !starting_address ) |
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| 44 | return RTEMS_INVALID_ADDRESS; |
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| 45 | |
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| 46 | if ( !id ) |
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| 47 | return RTEMS_INVALID_ADDRESS; |
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| 48 | |
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[27bbc05] | 49 | if ( length == 0 ) |
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| 50 | return RTEMS_INVALID_SIZE; |
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| 51 | |
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| 52 | if ( buffer_size == 0 ) |
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| 53 | return RTEMS_INVALID_SIZE; |
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| 54 | |
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| 55 | if ( length < buffer_size ) |
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| 56 | return RTEMS_INVALID_SIZE; |
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| 57 | |
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| 58 | if ( !_Partition_Is_buffer_size_aligned( buffer_size ) ) |
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| 59 | return RTEMS_INVALID_SIZE; |
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| 60 | |
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| 61 | if ( buffer_size < sizeof( Chain_Node ) ) |
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[842db5f3] | 62 | return RTEMS_INVALID_SIZE; |
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| 63 | |
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[83ca9f0a] | 64 | if ( !_Partition_Is_buffer_area_aligned( starting_address ) ) |
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| 65 | return RTEMS_INVALID_ADDRESS; |
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[842db5f3] | 66 | |
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| 67 | #if defined(RTEMS_MULTIPROCESSING) |
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[50f32b11] | 68 | if ( _Attributes_Is_global( attribute_set ) && |
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[842db5f3] | 69 | !_System_state_Is_multiprocessing ) |
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| 70 | return RTEMS_MP_NOT_CONFIGURED; |
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| 71 | #endif |
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| 72 | |
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| 73 | the_partition = _Partition_Allocate(); |
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| 74 | |
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| 75 | if ( !the_partition ) { |
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[23fec9f0] | 76 | _Objects_Allocator_unlock(); |
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[842db5f3] | 77 | return RTEMS_TOO_MANY; |
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| 78 | } |
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| 79 | |
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| 80 | #if defined(RTEMS_MULTIPROCESSING) |
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| 81 | if ( _Attributes_Is_global( attribute_set ) && |
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| 82 | !( _Objects_MP_Allocate_and_open( &_Partition_Information, name, |
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[eaef4657] | 83 | the_partition->Object.id, false ) ) ) { |
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[842db5f3] | 84 | _Partition_Free( the_partition ); |
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[23fec9f0] | 85 | _Objects_Allocator_unlock(); |
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[842db5f3] | 86 | return RTEMS_TOO_MANY; |
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| 87 | } |
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| 88 | #endif |
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| 89 | |
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[3570ec6] | 90 | _Partition_Initialize( |
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| 91 | the_partition, |
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| 92 | starting_address, |
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| 93 | length, |
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| 94 | buffer_size, |
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| 95 | attribute_set |
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| 96 | ); |
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[842db5f3] | 97 | |
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[6312db3] | 98 | _Objects_Open( |
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| 99 | &_Partition_Information, |
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| 100 | &the_partition->Object, |
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| 101 | (Objects_Name) name |
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| 102 | ); |
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[842db5f3] | 103 | |
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| 104 | *id = the_partition->Object.id; |
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| 105 | #if defined(RTEMS_MULTIPROCESSING) |
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| 106 | if ( _Attributes_Is_global( attribute_set ) ) |
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| 107 | _Partition_MP_Send_process_packet( |
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| 108 | PARTITION_MP_ANNOUNCE_CREATE, |
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| 109 | the_partition->Object.id, |
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| 110 | name, |
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| 111 | 0 /* Not used */ |
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| 112 | ); |
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| 113 | #endif |
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| 114 | |
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[23fec9f0] | 115 | _Objects_Allocator_unlock(); |
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[842db5f3] | 116 | return RTEMS_SUCCESSFUL; |
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| 117 | } |
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[21275b58] | 118 | |
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| 119 | static void _Partition_Manager_initialization(void) |
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| 120 | { |
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| 121 | _Objects_Initialize_information( &_Partition_Information ); |
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| 122 | |
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| 123 | /* |
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| 124 | * Register the MP Process Packet routine. |
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| 125 | */ |
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| 126 | |
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| 127 | #if defined(RTEMS_MULTIPROCESSING) |
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| 128 | _MPCI_Register_packet_processor( |
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| 129 | MP_PACKET_PARTITION, |
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| 130 | _Partition_MP_Process_packet |
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| 131 | ); |
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| 132 | #endif |
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| 133 | |
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| 134 | } |
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| 135 | |
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| 136 | RTEMS_SYSINIT_ITEM( |
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| 137 | _Partition_Manager_initialization, |
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| 138 | RTEMS_SYSINIT_CLASSIC_PARTITION, |
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| 139 | RTEMS_SYSINIT_ORDER_MIDDLE |
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| 140 | ); |
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