2 * FreeRTOS Kernel V11.2.0
3 * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
5 * SPDX-License-Identifier: MIT
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29 #ifndef __SECURE_PORT_MACROS_H__
30 #define __SECURE_PORT_MACROS_H__
33 * @brief Byte alignment requirements.
35 #define secureportBYTE_ALIGNMENT 8
36 #define secureportBYTE_ALIGNMENT_MASK ( 0x0007 )
39 * @brief Macro to declare a function as non-secure callable.
41 #if defined( __IAR_SYSTEMS_ICC__ )
42 #define secureportNON_SECURE_CALLABLE __cmse_nonsecure_entry __root
44 #define secureportNON_SECURE_CALLABLE __attribute__( ( cmse_nonsecure_entry ) ) __attribute__( ( used ) )
48 * @brief Set the secure PRIMASK value.
50 #define secureportSET_SECURE_PRIMASK( ulPrimaskValue ) \
51 __asm volatile ( "msr primask, %0" : : "r" ( ulPrimaskValue ) : "memory" )
54 * @brief Set the non-secure PRIMASK value.
56 #define secureportSET_NON_SECURE_PRIMASK( ulPrimaskValue ) \
57 __asm volatile ( "msr primask_ns, %0" : : "r" ( ulPrimaskValue ) : "memory" )
60 * @brief Read the PSP value in the given variable.
62 #define secureportREAD_PSP( pucOutCurrentStackPointer ) \
63 __asm volatile ( "mrs %0, psp" : "=r" ( pucOutCurrentStackPointer ) )
66 * @brief Set the PSP to the given value.
68 #define secureportSET_PSP( pucCurrentStackPointer ) \
69 __asm volatile ( "msr psp, %0" : : "r" ( pucCurrentStackPointer ) )
72 * @brief Read the PSPLIM value in the given variable.
74 #define secureportREAD_PSPLIM( pucOutStackLimit ) \
75 __asm volatile ( "mrs %0, psplim" : "=r" ( pucOutStackLimit ) )
78 * @brief Set the PSPLIM to the given value.
80 #define secureportSET_PSPLIM( pucStackLimit ) \
81 __asm volatile ( "msr psplim, %0" : : "r" ( pucStackLimit ) )
84 * @brief Set the NonSecure MSP to the given value.
86 #define secureportSET_MSP_NS( pucMainStackPointer ) \
87 __asm volatile ( "msr msp_ns, %0" : : "r" ( pucMainStackPointer ) )
90 * @brief Set the CONTROL register to the given value.
92 #define secureportSET_CONTROL( ulControl ) \
93 __asm volatile ( "msr control, %0" : : "r" ( ulControl ) : "memory" )
96 * @brief Read the Interrupt Program Status Register (IPSR) value in the given
99 #define secureportREAD_IPSR( ulIPSR ) \
100 __asm volatile ( "mrs %0, ipsr" : "=r" ( ulIPSR ) )
103 * @brief PRIMASK value to enable interrupts.
105 #define secureportPRIMASK_ENABLE_INTERRUPTS_VAL 0
108 * @brief PRIMASK value to disable interrupts.
110 #define secureportPRIMASK_DISABLE_INTERRUPTS_VAL 1
113 * @brief Disable secure interrupts.
115 #define secureportDISABLE_SECURE_INTERRUPTS() secureportSET_SECURE_PRIMASK( secureportPRIMASK_DISABLE_INTERRUPTS_VAL )
118 * @brief Disable non-secure interrupts.
120 * This effectively disables context switches.
122 #define secureportDISABLE_NON_SECURE_INTERRUPTS() secureportSET_NON_SECURE_PRIMASK( secureportPRIMASK_DISABLE_INTERRUPTS_VAL )
125 * @brief Enable non-secure interrupts.
127 #define secureportENABLE_NON_SECURE_INTERRUPTS() secureportSET_NON_SECURE_PRIMASK( secureportPRIMASK_ENABLE_INTERRUPTS_VAL )
130 * @brief Assert definition.
132 #define secureportASSERT( x ) \
135 secureportDISABLE_SECURE_INTERRUPTS(); \
136 secureportDISABLE_NON_SECURE_INTERRUPTS(); \
140 #endif /* __SECURE_PORT_MACROS_H__ */