| /* |
| * FreeRTOS Kernel V10.4.6 |
| * Copyright (C) 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy of |
| * this software and associated documentation files (the "Software"), to deal in |
| * the Software without restriction, including without limitation the rights to |
| * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of |
| * the Software, and to permit persons to whom the Software is furnished to do so, |
| * subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS |
| * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR |
| * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER |
| * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * https://www.FreeRTOS.org |
| * https://github.com/FreeRTOS |
| * |
| */ |
| |
| #ifndef __SECURE_PORT_MACROS_H__ |
| #define __SECURE_PORT_MACROS_H__ |
| |
| /** |
| * @brief Byte alignment requirements. |
| */ |
| #define secureportBYTE_ALIGNMENT 8 |
| #define secureportBYTE_ALIGNMENT_MASK ( 0x0007 ) |
| |
| /** |
| * @brief Macro to declare a function as non-secure callable. |
| */ |
| #if defined( __IAR_SYSTEMS_ICC__ ) |
| #define secureportNON_SECURE_CALLABLE __cmse_nonsecure_entry __root |
| #else |
| #define secureportNON_SECURE_CALLABLE __attribute__( ( cmse_nonsecure_entry ) ) __attribute__( ( used ) ) |
| #endif |
| |
| /** |
| * @brief Set the secure PRIMASK value. |
| */ |
| #define secureportSET_SECURE_PRIMASK( ulPrimaskValue ) \ |
| __asm volatile ( "msr primask, %0" : : "r" ( ulPrimaskValue ) : "memory" ) |
| |
| /** |
| * @brief Set the non-secure PRIMASK value. |
| */ |
| #define secureportSET_NON_SECURE_PRIMASK( ulPrimaskValue ) \ |
| __asm volatile ( "msr primask_ns, %0" : : "r" ( ulPrimaskValue ) : "memory" ) |
| |
| /** |
| * @brief Read the PSP value in the given variable. |
| */ |
| #define secureportREAD_PSP( pucOutCurrentStackPointer ) \ |
| __asm volatile ( "mrs %0, psp" : "=r" ( pucOutCurrentStackPointer ) ) |
| |
| /** |
| * @brief Set the PSP to the given value. |
| */ |
| #define secureportSET_PSP( pucCurrentStackPointer ) \ |
| __asm volatile ( "msr psp, %0" : : "r" ( pucCurrentStackPointer ) ) |
| |
| /** |
| * @brief Read the PSPLIM value in the given variable. |
| */ |
| #define secureportREAD_PSPLIM( pucOutStackLimit ) \ |
| __asm volatile ( "mrs %0, psplim" : "=r" ( pucOutStackLimit ) ) |
| |
| /** |
| * @brief Set the PSPLIM to the given value. |
| */ |
| #define secureportSET_PSPLIM( pucStackLimit ) \ |
| __asm volatile ( "msr psplim, %0" : : "r" ( pucStackLimit ) ) |
| |
| /** |
| * @brief Set the NonSecure MSP to the given value. |
| */ |
| #define secureportSET_MSP_NS( pucMainStackPointer ) \ |
| __asm volatile ( "msr msp_ns, %0" : : "r" ( pucMainStackPointer ) ) |
| |
| /** |
| * @brief Set the CONTROL register to the given value. |
| */ |
| #define secureportSET_CONTROL( ulControl ) \ |
| __asm volatile ( "msr control, %0" : : "r" ( ulControl ) : "memory" ) |
| |
| /** |
| * @brief Read the Interrupt Program Status Register (IPSR) value in the given |
| * variable. |
| */ |
| #define secureportREAD_IPSR( ulIPSR ) \ |
| __asm volatile ( "mrs %0, ipsr" : "=r" ( ulIPSR ) ) |
| |
| /** |
| * @brief PRIMASK value to enable interrupts. |
| */ |
| #define secureportPRIMASK_ENABLE_INTERRUPTS_VAL 0 |
| |
| /** |
| * @brief PRIMASK value to disable interrupts. |
| */ |
| #define secureportPRIMASK_DISABLE_INTERRUPTS_VAL 1 |
| |
| /** |
| * @brief Disable secure interrupts. |
| */ |
| #define secureportDISABLE_SECURE_INTERRUPTS() secureportSET_SECURE_PRIMASK( secureportPRIMASK_DISABLE_INTERRUPTS_VAL ) |
| |
| /** |
| * @brief Disable non-secure interrupts. |
| * |
| * This effectively disables context switches. |
| */ |
| #define secureportDISABLE_NON_SECURE_INTERRUPTS() secureportSET_NON_SECURE_PRIMASK( secureportPRIMASK_DISABLE_INTERRUPTS_VAL ) |
| |
| /** |
| * @brief Enable non-secure interrupts. |
| */ |
| #define secureportENABLE_NON_SECURE_INTERRUPTS() secureportSET_NON_SECURE_PRIMASK( secureportPRIMASK_ENABLE_INTERRUPTS_VAL ) |
| |
| /** |
| * @brief Assert definition. |
| */ |
| #define secureportASSERT( x ) \ |
| if( ( x ) == 0 ) \ |
| { \ |
| secureportDISABLE_SECURE_INTERRUPTS(); \ |
| secureportDISABLE_NON_SECURE_INTERRUPTS(); \ |
| for( ; ; ) {; } \ |
| } |
| |
| #endif /* __SECURE_PORT_MACROS_H__ */ |