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720d3c5f | 1 | /** @file\r |
65330ad3 | 2 | Declaration of internal functions in BaseSynchronizationLib.\r |
720d3c5f | 3 | \r |
9095d37b | 4 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r |
9344f092 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
720d3c5f | 6 | \r |
7 | **/\r | |
8 | \r | |
65330ad3 | 9 | #ifndef __BASE_SYNCHRONIZATION_LIB_INTERNALS__\r |
10 | #define __BASE_SYNCHRONIZATION_LIB_INTERNALS__\r | |
720d3c5f | 11 | \r |
12 | #include <Base.h>\r | |
13 | #include <Library/SynchronizationLib.h>\r | |
14 | #include <Library/BaseLib.h>\r | |
15 | #include <Library/DebugLib.h>\r | |
16 | #include <Library/TimerLib.h>\r | |
17 | #include <Library/PcdLib.h>\r | |
18 | \r | |
19 | /**\r | |
20 | Performs an atomic increment of an 32-bit unsigned integer.\r | |
21 | \r | |
22 | Performs an atomic increment of the 32-bit unsigned integer specified by\r | |
23 | Value and returns the incremented value. The increment operation must be\r | |
17634d02 | 24 | performed using MP safe mechanisms.\r |
720d3c5f | 25 | \r |
26 | @param Value A pointer to the 32-bit value to increment.\r | |
27 | \r | |
28 | @return The incremented value.\r | |
29 | \r | |
30 | **/\r | |
31 | UINT32\r | |
32 | EFIAPI\r | |
33 | InternalSyncIncrement (\r | |
2f88bd3a | 34 | IN volatile UINT32 *Value\r |
720d3c5f | 35 | );\r |
36 | \r | |
720d3c5f | 37 | /**\r |
38 | Performs an atomic decrement of an 32-bit unsigned integer.\r | |
39 | \r | |
40 | Performs an atomic decrement of the 32-bit unsigned integer specified by\r | |
41 | Value and returns the decrement value. The decrement operation must be\r | |
17634d02 | 42 | performed using MP safe mechanisms.\r |
720d3c5f | 43 | \r |
44 | @param Value A pointer to the 32-bit value to decrement.\r | |
45 | \r | |
46 | @return The decrement value.\r | |
47 | \r | |
48 | **/\r | |
49 | UINT32\r | |
50 | EFIAPI\r | |
51 | InternalSyncDecrement (\r | |
2f88bd3a | 52 | IN volatile UINT32 *Value\r |
720d3c5f | 53 | );\r |
54 | \r | |
9b89163e AB |
55 | /**\r |
56 | Performs an atomic compare exchange operation on a 16-bit unsigned integer.\r | |
57 | \r | |
58 | Performs an atomic compare exchange operation on the 16-bit unsigned integer\r | |
59 | specified by Value. If Value is equal to CompareValue, then Value is set to\r | |
60 | ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue,\r | |
61 | then Value is returned. The compare exchange operation must be performed using\r | |
62 | MP safe mechanisms.\r | |
63 | \r | |
64 | @param Value A pointer to the 16-bit value for the compare exchange\r | |
65 | operation.\r | |
66 | @param CompareValue A 16-bit value used in compare operation.\r | |
67 | @param ExchangeValue A 16-bit value used in exchange operation.\r | |
68 | \r | |
69 | @return The original *Value before exchange.\r | |
70 | \r | |
71 | **/\r | |
72 | UINT16\r | |
73 | EFIAPI\r | |
74 | InternalSyncCompareExchange16 (\r | |
2f88bd3a MK |
75 | IN volatile UINT16 *Value,\r |
76 | IN UINT16 CompareValue,\r | |
77 | IN UINT16 ExchangeValue\r | |
9b89163e AB |
78 | );\r |
79 | \r | |
720d3c5f | 80 | /**\r |
81 | Performs an atomic compare exchange operation on a 32-bit unsigned integer.\r | |
82 | \r | |
83 | Performs an atomic compare exchange operation on the 32-bit unsigned integer\r | |
84 | specified by Value. If Value is equal to CompareValue, then Value is set to\r | |
85 | ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue,\r | |
86 | then Value is returned. The compare exchange operation must be performed using\r | |
87 | MP safe mechanisms.\r | |
88 | \r | |
89 | @param Value A pointer to the 32-bit value for the compare exchange\r | |
90 | operation.\r | |
2fc59a00 | 91 | @param CompareValue A 32-bit value used in compare operation.\r |
92 | @param ExchangeValue A 32-bit value used in exchange operation.\r | |
720d3c5f | 93 | \r |
94 | @return The original *Value before exchange.\r | |
95 | \r | |
96 | **/\r | |
97 | UINT32\r | |
98 | EFIAPI\r | |
99 | InternalSyncCompareExchange32 (\r | |
2f88bd3a MK |
100 | IN volatile UINT32 *Value,\r |
101 | IN UINT32 CompareValue,\r | |
102 | IN UINT32 ExchangeValue\r | |
720d3c5f | 103 | );\r |
104 | \r | |
720d3c5f | 105 | /**\r |
106 | Performs an atomic compare exchange operation on a 64-bit unsigned integer.\r | |
107 | \r | |
108 | Performs an atomic compare exchange operation on the 64-bit unsigned integer specified\r | |
109 | by Value. If Value is equal to CompareValue, then Value is set to ExchangeValue and\r | |
110 | CompareValue is returned. If Value is not equal to CompareValue, then Value is returned.\r | |
111 | The compare exchange operation must be performed using MP safe mechanisms.\r | |
112 | \r | |
113 | @param Value A pointer to the 64-bit value for the compare exchange\r | |
114 | operation.\r | |
2fc59a00 | 115 | @param CompareValue A 64-bit value used in compare operation.\r |
116 | @param ExchangeValue A 64-bit value used in exchange operation.\r | |
720d3c5f | 117 | \r |
118 | @return The original *Value before exchange.\r | |
119 | \r | |
120 | **/\r | |
121 | UINT64\r | |
122 | EFIAPI\r | |
123 | InternalSyncCompareExchange64 (\r | |
2f88bd3a MK |
124 | IN volatile UINT64 *Value,\r |
125 | IN UINT64 CompareValue,\r | |
126 | IN UINT64 ExchangeValue\r | |
720d3c5f | 127 | );\r |
128 | \r | |
5f0a17d8 JF |
129 | /**\r |
130 | Internal function to retrieve the architecture specific spin lock alignment\r | |
131 | requirements for optimal spin lock performance.\r | |
132 | \r | |
133 | @return The architecture specific spin lock alignment.\r | |
9095d37b | 134 | \r |
5f0a17d8 JF |
135 | **/\r |
136 | UINTN\r | |
137 | InternalGetSpinLockProperties (\r | |
138 | VOID\r | |
139 | );\r | |
140 | \r | |
720d3c5f | 141 | #endif\r |