1 /***************************************************************************
2 * Copyright (c) 2024 Microsoft Corporation
3 *
4 * This program and the accompanying materials are made available under the
5 * terms of the MIT License which is available at
6 * https://opensource.org/licenses/MIT.
7 *
8 * SPDX-License-Identifier: MIT
9 **************************************************************************/
10
11
12 /**************************************************************************/
13 /**************************************************************************/
14 /** */
15 /** ThreadX Component */
16 /** */
17 /** Initialize */
18 /** */
19 /**************************************************************************/
20 /**************************************************************************/
21
22 #define TX_SOURCE_CODE
23 #define TX_THREAD_SMP_SOURCE_CODE
24
25
26 /* Include necessary system files. */
27
28 #include "tx_api.h"
29 #include "tx_initialize.h"
30 #include "tx_thread.h"
31
32
33 /**************************************************************************/
34 /* */
35 /* FUNCTION RELEASE */
36 /* */
37 /* _tx_initialize_kernel_setup PORTABLE SMP */
38 /* 6.1 */
39 /* AUTHOR */
40 /* */
41 /* William E. Lamie, Microsoft Corporation */
42 /* */
43 /* DESCRIPTION */
44 /* */
45 /* This function is called by the compiler's startup code to make */
46 /* ThreadX objects accessible to the compiler's library. If this */
47 /* function is not called by the compiler, all ThreadX initialization */
48 /* takes place from the kernel enter function defined previously. */
49 /* */
50 /* INPUT */
51 /* */
52 /* None */
53 /* */
54 /* OUTPUT */
55 /* */
56 /* None */
57 /* */
58 /* CALLS */
59 /* */
60 /* _tx_thread_smp_high_level_initialize SMP initialization */
61 /* _tx_thread_smp_current_state_set Set system state for all cores */
62 /* _tx_initialize_low_level Low-level initialization */
63 /* _tx_initialize_high_level High-level initialization */
64 /* */
65 /* CALLED BY */
66 /* */
67 /* startup code Compiler startup code */
68 /* */
69 /* RELEASE HISTORY */
70 /* */
71 /* DATE NAME DESCRIPTION */
72 /* */
73 /* 09-30-2020 William E. Lamie Initial Version 6.1 */
74 /* */
75 /**************************************************************************/
_tx_initialize_kernel_setup(VOID)76 VOID _tx_initialize_kernel_setup(VOID)
77 {
78
79 /* Ensure that the system state variable is set to indicate
80 initialization is in progress. Note that this variable is
81 later used to represent interrupt nesting. */
82 _tx_thread_smp_current_state_set(TX_INITIALIZE_IN_PROGRESS);
83
84 /* Call any port specific preprocessing. */
85 TX_PORT_SPECIFIC_PRE_INITIALIZATION
86
87 /* Invoke the low-level initialization to handle all processor specific
88 initialization issues. */
89 _tx_initialize_low_level();
90
91 /* Call the high-level SMP Initialization. */
92 _tx_thread_smp_high_level_initialize();
93
94 /* Invoke the high-level initialization to exercise all of the
95 ThreadX components and the application's initialization
96 function. */
97 _tx_initialize_high_level();
98
99 /* Call any port specific post-processing. */
100 TX_PORT_SPECIFIC_POST_INITIALIZATION
101
102 /* Set the system state to indicate initialization is almost done. */
103 _tx_thread_system_state[0] = TX_INITIALIZE_ALMOST_DONE;
104 }
105
106
