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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
e2d9bfb2 5 This program and the accompanying materials\r
720d3c5f 6 are licensed and made available under the terms and conditions of the BSD License\r
7 which accompanies this distribution. The full text of the license may be found at\r
2fc59a00 8 http://opensource.org/licenses/bsd-license.php.\r
720d3c5f 9\r
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
65330ad3 15#ifndef __BASE_SYNCHRONIZATION_LIB_INTERNALS__\r
16#define __BASE_SYNCHRONIZATION_LIB_INTERNALS__\r
720d3c5f 17\r
18#include <Base.h>\r
19#include <Library/SynchronizationLib.h>\r
20#include <Library/BaseLib.h>\r
21#include <Library/DebugLib.h>\r
22#include <Library/TimerLib.h>\r
23#include <Library/PcdLib.h>\r
24\r
25/**\r
26 Performs an atomic increment of an 32-bit unsigned integer.\r
27\r
28 Performs an atomic increment of the 32-bit unsigned integer specified by\r
29 Value and returns the incremented value. The increment operation must be\r
17634d02 30 performed using MP safe mechanisms.\r
720d3c5f 31\r
32 @param Value A pointer to the 32-bit value to increment.\r
33\r
34 @return The incremented value.\r
35\r
36**/\r
37UINT32\r
38EFIAPI\r
39InternalSyncIncrement (\r
40 IN volatile UINT32 *Value\r
41 );\r
42\r
43\r
44/**\r
45 Performs an atomic decrement of an 32-bit unsigned integer.\r
46\r
47 Performs an atomic decrement of the 32-bit unsigned integer specified by\r
48 Value and returns the decrement value. The decrement operation must be\r
17634d02 49 performed using MP safe mechanisms.\r
720d3c5f 50\r
51 @param Value A pointer to the 32-bit value to decrement.\r
52\r
53 @return The decrement value.\r
54\r
55**/\r
56UINT32\r
57EFIAPI\r
58InternalSyncDecrement (\r
59 IN volatile UINT32 *Value\r
60 );\r
61\r
62\r
9b89163e
AB
63/**\r
64 Performs an atomic compare exchange operation on a 16-bit unsigned integer.\r
65\r
66 Performs an atomic compare exchange operation on the 16-bit unsigned integer\r
67 specified by Value. If Value is equal to CompareValue, then Value is set to\r
68 ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue,\r
69 then Value is returned. The compare exchange operation must be performed using\r
70 MP safe mechanisms.\r
71\r
72 @param Value A pointer to the 16-bit value for the compare exchange\r
73 operation.\r
74 @param CompareValue A 16-bit value used in compare operation.\r
75 @param ExchangeValue A 16-bit value used in exchange operation.\r
76\r
77 @return The original *Value before exchange.\r
78\r
79**/\r
80UINT16\r
81EFIAPI\r
82InternalSyncCompareExchange16 (\r
83 IN volatile UINT16 *Value,\r
84 IN UINT16 CompareValue,\r
85 IN UINT16 ExchangeValue\r
86 );\r
87\r
88\r
720d3c5f 89/**\r
90 Performs an atomic compare exchange operation on a 32-bit unsigned integer.\r
91\r
92 Performs an atomic compare exchange operation on the 32-bit unsigned integer\r
93 specified by Value. If Value is equal to CompareValue, then Value is set to\r
94 ExchangeValue and CompareValue is returned. If Value is not equal to CompareValue,\r
95 then Value is returned. The compare exchange operation must be performed using\r
96 MP safe mechanisms.\r
97\r
98 @param Value A pointer to the 32-bit value for the compare exchange\r
99 operation.\r
2fc59a00 100 @param CompareValue A 32-bit value used in compare operation.\r
101 @param ExchangeValue A 32-bit value used in exchange operation.\r
720d3c5f 102\r
103 @return The original *Value before exchange.\r
104\r
105**/\r
106UINT32\r
107EFIAPI\r
108InternalSyncCompareExchange32 (\r
109 IN volatile UINT32 *Value,\r
110 IN UINT32 CompareValue,\r
111 IN UINT32 ExchangeValue\r
112 );\r
113\r
114\r
115/**\r
116 Performs an atomic compare exchange operation on a 64-bit unsigned integer.\r
117\r
118 Performs an atomic compare exchange operation on the 64-bit unsigned integer specified\r
119 by Value. If Value is equal to CompareValue, then Value is set to ExchangeValue and\r
120 CompareValue is returned. If Value is not equal to CompareValue, then Value is returned.\r
121 The compare exchange operation must be performed using MP safe mechanisms.\r
122\r
123 @param Value A pointer to the 64-bit value for the compare exchange\r
124 operation.\r
2fc59a00 125 @param CompareValue A 64-bit value used in compare operation.\r
126 @param ExchangeValue A 64-bit value used in exchange operation.\r
720d3c5f 127\r
128 @return The original *Value before exchange.\r
129\r
130**/\r
131UINT64\r
132EFIAPI\r
133InternalSyncCompareExchange64 (\r
134 IN volatile UINT64 *Value,\r
135 IN UINT64 CompareValue,\r
136 IN UINT64 ExchangeValue\r
137 );\r
138\r
5f0a17d8
JF
139/**\r
140 Internal function to retrieve the architecture specific spin lock alignment\r
141 requirements for optimal spin lock performance.\r
142\r
143 @return The architecture specific spin lock alignment.\r
9095d37b 144\r
5f0a17d8
JF
145**/\r
146UINTN\r
147InternalGetSpinLockProperties (\r
148 VOID\r
149 );\r
150\r
720d3c5f 151#endif\r