1 /**************************************************************************/
2 /*                                                                        */
3 /*       Copyright (c) Microsoft Corporation. All rights reserved.        */
4 /*                                                                        */
5 /*       This software is licensed under the Microsoft Software License   */
6 /*       Terms for Microsoft Azure RTOS. Full text of the license can be  */
7 /*       found in the LICENSE file at https://aka.ms/AzureRTOS_EULA       */
8 /*       and in the root directory of this software.                      */
9 /*                                                                        */
10 /**************************************************************************/
11 
12 
13 /**************************************************************************/
14 /**************************************************************************/
15 /**                                                                       */
16 /** ThreadX Component                                                     */
17 /**                                                                       */
18 /**   Thread - High Level SMP Support                                     */
19 /**                                                                       */
20 /**************************************************************************/
21 /**************************************************************************/
22 
23 #define TX_SOURCE_CODE
24 #define TX_THREAD_SMP_SOURCE_CODE
25 
26 
27 /* Include necessary system files.  */
28 
29 #include "tx_api.h"
30 #include "tx_initialize.h"
31 #include "tx_timer.h"
32 #include "tx_thread.h"
33 
34 
35 
36 /**************************************************************************/
37 /*                                                                        */
38 /*  FUNCTION                                               RELEASE        */
39 /*                                                                        */
40 /*    _tx_thread_smp_current_state_set                   PORTABLE SMP     */
41 /*                                                           6.1          */
42 /*  AUTHOR                                                                */
43 /*                                                                        */
44 /*    William E. Lamie, Microsoft Corporation                             */
45 /*                                                                        */
46 /*  DESCRIPTION                                                           */
47 /*                                                                        */
48 /*    This function is sets the current state to all of the cores.        */
49 /*                                                                        */
50 /*  INPUT                                                                 */
51 /*                                                                        */
52 /*    new_state                             New per-system state          */
53 /*                                                                        */
54 /*  OUTPUT                                                                */
55 /*                                                                        */
56 /*    None                                                                */
57 /*                                                                        */
58 /*  CALLS                                                                 */
59 /*                                                                        */
60 /*    None                                                                */
61 /*                                                                        */
62 /*  CALLED BY                                                             */
63 /*                                                                        */
64 /*    _tx_initialize_kernel_enter           ThreadX entry                 */
65 /*                                                                        */
66 /*  RELEASE HISTORY                                                       */
67 /*                                                                        */
68 /*    DATE              NAME                      DESCRIPTION             */
69 /*                                                                        */
70 /*  09-30-2020     William E. Lamie         Initial Version 6.1           */
71 /*                                                                        */
72 /**************************************************************************/
_tx_thread_smp_current_state_set(ULONG new_state)73 void  _tx_thread_smp_current_state_set(ULONG new_state)
74 {
75 
76 UINT    i;
77 
78     /* Initialize the state for each to initialization.  */
79     i =  ((UINT) (TX_THREAD_SMP_MAX_CORES-1));
80     do
81     {
82 
83         /* Set this core's state.  */
84         _tx_thread_system_state[i] =  new_state;
85 
86         if (i == ((UINT) 0))
87         {
88 
89             /* We are finished, exit the loop.  */
90             break;
91         }
92         else
93         {
94 
95             /* Decrement the index.  */
96             i--;
97         }
98     } while (TX_LOOP_FOREVER);
99 }
100 
101