mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2026-01-17 07:10:37 -05:00
Re-sync with upstream and stripping away none kernel related.
This commit is contained in:
Yuhui Zheng
parent
9c0c37ab9b
commit
210b1ffcc8
13732 changed files with 49 additions and 7054697 deletions
453
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23/portasm.c
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453
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23/portasm.c
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@ -0,0 +1,453 @@
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/*
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* FreeRTOS Kernel V10.3.0
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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*/
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/* Standard includes. */
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#include <stdint.h>
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/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE ensures that PRIVILEGED_FUNCTION
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* is defined correctly and privileged functions are placed in correct sections. */
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#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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/* Portasm includes. */
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#include "portasm.h"
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/* MPU_WRAPPERS_INCLUDED_FROM_API_FILE is needed to be defined only for the
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* header files. */
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#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
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#if( configENABLE_FPU == 1 )
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#error Cortex-M23 does not have a Floating Point Unit (FPU) and therefore configENABLE_FPU must be set to 0.
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#endif
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void vRestoreContextOfFirstTask( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
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{
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__asm volatile
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(
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" .syntax unified \n"
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" \n"
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" ldr r2, pxCurrentTCBConst2 \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
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" ldr r3, [r2] \n" /* Read pxCurrentTCB. */
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" ldr r0, [r3] \n" /* Read top of stack from TCB - The first item in pxCurrentTCB is the task top of stack. */
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" \n"
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#if( configENABLE_MPU == 1 )
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" dmb \n" /* Complete outstanding transfers before disabling MPU. */
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" ldr r2, xMPUCTRLConst2 \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
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" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
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" movs r5, #1 \n" /* r5 = 1. */
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" bics r4, r5 \n" /* r4 = r4 & ~r5 i.e. Clear the bit 0 in r4. */
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" str r4, [r2] \n" /* Disable MPU. */
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" \n"
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" adds r3, #4 \n" /* r3 = r3 + 4. r3 now points to MAIR0 in TCB. */
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" ldr r4, [r3] \n" /* r4 = *r3 i.e. r4 = MAIR0. */
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" ldr r2, xMAIR0Const2 \n" /* r2 = 0xe000edc0 [Location of MAIR0]. */
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" str r4, [r2] \n" /* Program MAIR0. */
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" ldr r2, xRNRConst2 \n" /* r2 = 0xe000ed98 [Location of RNR]. */
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" adds r3, #4 \n" /* r3 = r3 + 4. r3 now points to first RBAR in TCB. */
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" movs r5, #4 \n" /* r5 = 4. */
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" str r5, [r2] \n" /* Program RNR = 4. */
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" ldmia r3!, {r6,r7} \n" /* Read first set of RBAR/RLAR from TCB. */
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" ldr r4, xRBARConst2 \n" /* r4 = 0xe000ed9c [Location of RBAR]. */
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" stmia r4!, {r6,r7} \n" /* Write first set of RBAR/RLAR registers. */
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" movs r5, #5 \n" /* r5 = 5. */
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" str r5, [r2] \n" /* Program RNR = 5. */
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" ldmia r3!, {r6,r7} \n" /* Read second set of RBAR/RLAR from TCB. */
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" ldr r4, xRBARConst2 \n" /* r4 = 0xe000ed9c [Location of RBAR]. */
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" stmia r4!, {r6,r7} \n" /* Write second set of RBAR/RLAR registers. */
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" movs r5, #6 \n" /* r5 = 6. */
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" str r5, [r2] \n" /* Program RNR = 6. */
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" ldmia r3!, {r6,r7} \n" /* Read third set of RBAR/RLAR from TCB. */
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" ldr r4, xRBARConst2 \n" /* r4 = 0xe000ed9c [Location of RBAR]. */
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" stmia r4!, {r6,r7} \n" /* Write third set of RBAR/RLAR registers. */
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" movs r5, #7 \n" /* r5 = 7. */
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" str r5, [r2] \n" /* Program RNR = 7. */
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" ldmia r3!, {r6,r7} \n" /* Read fourth set of RBAR/RLAR from TCB. */
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" ldr r4, xRBARConst2 \n" /* r4 = 0xe000ed9c [Location of RBAR]. */
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" stmia r4!, {r6,r7} \n" /* Write fourth set of RBAR/RLAR registers. */
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" \n"
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" ldr r2, xMPUCTRLConst2 \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
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" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
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" movs r5, #1 \n" /* r5 = 1. */
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" orrs r4, r5 \n" /* r4 = r4 | r5 i.e. Set the bit 0 in r4. */
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" str r4, [r2] \n" /* Enable MPU. */
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" dsb \n" /* Force memory writes before continuing. */
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#endif /* configENABLE_MPU */
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" \n"
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#if( configENABLE_MPU == 1 )
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" ldm r0!, {r1-r4} \n" /* Read from stack - r1 = xSecureContext, r2 = PSPLIM, r3 = CONTROL and r4 = EXC_RETURN. */
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" ldr r5, xSecureContextConst2 \n"
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" str r1, [r5] \n" /* Set xSecureContext to this task's value for the same. */
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" msr psplim, r2 \n" /* Set this task's PSPLIM value. */
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" msr control, r3 \n" /* Set this task's CONTROL value. */
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" adds r0, #32 \n" /* Discard everything up to r0. */
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" msr psp, r0 \n" /* This is now the new top of stack to use in the task. */
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" isb \n"
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" bx r4 \n" /* Finally, branch to EXC_RETURN. */
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#else /* configENABLE_MPU */
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" ldm r0!, {r1-r3} \n" /* Read from stack - r1 = xSecureContext, r2 = PSPLIM and r3 = EXC_RETURN. */
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" ldr r4, xSecureContextConst2 \n"
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" str r1, [r4] \n" /* Set xSecureContext to this task's value for the same. */
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" msr psplim, r2 \n" /* Set this task's PSPLIM value. */
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" movs r1, #2 \n" /* r1 = 2. */
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" msr CONTROL, r1 \n" /* Switch to use PSP in the thread mode. */
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" adds r0, #32 \n" /* Discard everything up to r0. */
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" msr psp, r0 \n" /* This is now the new top of stack to use in the task. */
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" isb \n"
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" bx r3 \n" /* Finally, branch to EXC_RETURN. */
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#endif /* configENABLE_MPU */
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" \n"
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" .align 4 \n"
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"pxCurrentTCBConst2: .word pxCurrentTCB \n"
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"xSecureContextConst2: .word xSecureContext \n"
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#if( configENABLE_MPU == 1 )
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"xMPUCTRLConst2: .word 0xe000ed94 \n"
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"xMAIR0Const2: .word 0xe000edc0 \n"
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"xRNRConst2: .word 0xe000ed98 \n"
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"xRBARConst2: .word 0xe000ed9c \n"
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#endif /* configENABLE_MPU */
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);
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}
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/*-----------------------------------------------------------*/
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BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */
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{
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__asm volatile
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(
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" mrs r0, control \n" /* r0 = CONTROL. */
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" movs r1, #1 \n" /* r1 = 1. */
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" tst r0, r1 \n" /* Perform r0 & r1 (bitwise AND) and update the conditions flag. */
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" beq running_privileged \n" /* If the result of previous AND operation was 0, branch. */
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" movs r0, #0 \n" /* CONTROL[0]!=0. Return false to indicate that the processor is not privileged. */
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" bx lr \n" /* Return. */
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" running_privileged: \n"
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" movs r0, #1 \n" /* CONTROL[0]==0. Return true to indicate that the processor is privileged. */
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" bx lr \n" /* Return. */
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" \n"
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" .align 4 \n"
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::: "r0", "r1", "memory"
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);
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}
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/*-----------------------------------------------------------*/
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void vRaisePrivilege( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
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{
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__asm volatile
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(
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" mrs r0, control \n" /* Read the CONTROL register. */
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" movs r1, #1 \n" /* r1 = 1. */
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" bics r0, r1 \n" /* Clear the bit 0. */
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" msr control, r0 \n" /* Write back the new CONTROL value. */
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" bx lr \n" /* Return to the caller. */
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::: "r0", "r1", "memory"
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);
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}
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/*-----------------------------------------------------------*/
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void vResetPrivilege( void ) /* __attribute__ (( naked )) */
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{
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__asm volatile
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(
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" mrs r0, control \n" /* r0 = CONTROL. */
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" movs r1, #1 \n" /* r1 = 1. */
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" orrs r0, r1 \n" /* r0 = r0 | r1. */
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" msr control, r0 \n" /* CONTROL = r0. */
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" bx lr \n" /* Return to the caller. */
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:::"r0", "r1", "memory"
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);
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}
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/*-----------------------------------------------------------*/
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void vStartFirstTask( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
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{
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__asm volatile
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(
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" ldr r0, xVTORConst \n" /* Use the NVIC offset register to locate the stack. */
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" ldr r0, [r0] \n" /* Read the VTOR register which gives the address of vector table. */
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" ldr r0, [r0] \n" /* The first entry in vector table is stack pointer. */
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" msr msp, r0 \n" /* Set the MSP back to the start of the stack. */
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" cpsie i \n" /* Globally enable interrupts. */
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" dsb \n"
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" isb \n"
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" svc %0 \n" /* System call to start the first task. */
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" nop \n"
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" \n"
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" .align 4 \n"
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"xVTORConst: .word 0xe000ed08 \n"
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:: "i" ( portSVC_START_SCHEDULER ) : "memory"
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);
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}
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/*-----------------------------------------------------------*/
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uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */
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{
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__asm volatile
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(
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" mrs r0, PRIMASK \n"
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" cpsid i \n"
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" bx lr \n"
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::: "memory"
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);
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}
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/*-----------------------------------------------------------*/
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void vClearInterruptMask( __attribute__( ( unused ) ) uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */
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{
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__asm volatile
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(
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" msr PRIMASK, r0 \n"
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" bx lr \n"
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::: "memory"
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);
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}
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/*-----------------------------------------------------------*/
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void PendSV_Handler( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
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{
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__asm volatile
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(
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" .syntax unified \n"
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" .extern SecureContext_SaveContext \n"
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" .extern SecureContext_LoadContext \n"
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" \n"
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" mrs r1, psp \n" /* Read PSP in r1. */
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" ldr r2, xSecureContextConst \n" /* Read the location of xSecureContext i.e. &( xSecureContext ). */
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" ldr r0, [r2] \n" /* Read xSecureContext - Value of xSecureContext must be in r0 as it is used as a parameter later. */
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" \n"
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" cbz r0, save_ns_context \n" /* No secure context to save. */
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" push {r0-r2, r14} \n"
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" bl SecureContext_SaveContext \n"
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" pop {r0-r3} \n" /* LR is now in r3. */
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" mov lr, r3 \n" /* LR = r3. */
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" lsls r2, r3, #25 \n" /* r2 = r3 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
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" bpl save_ns_context \n" /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
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" ldr r3, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
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" ldr r2, [r3] \n" /* Read pxCurrentTCB. */
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#if( configENABLE_MPU == 1 )
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" subs r1, r1, #16 \n" /* Make space for xSecureContext, PSPLIM, CONTROL and LR on the stack. */
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" str r1, [r2] \n" /* Save the new top of stack in TCB. */
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" mrs r2, psplim \n" /* r2 = PSPLIM. */
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" mrs r3, control \n" /* r3 = CONTROL. */
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" mov r4, lr \n" /* r4 = LR/EXC_RETURN. */
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" stmia r1!, {r0, r2-r4} \n" /* Store xSecureContext, PSPLIM, CONTROL and LR on the stack. */
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#else /* configENABLE_MPU */
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" subs r1, r1, #12 \n" /* Make space for xSecureContext, PSPLIM and LR on the stack. */
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" str r1, [r2] \n" /* Save the new top of stack in TCB. */
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" mrs r2, psplim \n" /* r2 = PSPLIM. */
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" mov r3, lr \n" /* r3 = LR/EXC_RETURN. */
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" stmia r1!, {r0, r2-r3} \n" /* Store xSecureContext, PSPLIM and LR on the stack. */
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#endif /* configENABLE_MPU */
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" b select_next_task \n"
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" \n"
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" save_ns_context: \n"
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" ldr r3, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
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" ldr r2, [r3] \n" /* Read pxCurrentTCB. */
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#if( configENABLE_MPU == 1 )
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" subs r1, r1, #48 \n" /* Make space for xSecureContext, PSPLIM, CONTROL, LR and the remaining registers on the stack. */
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" str r1, [r2] \n" /* Save the new top of stack in TCB. */
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" adds r1, r1, #16 \n" /* r1 = r1 + 16. */
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" stmia r1!, {r4-r7} \n" /* Store the low registers that are not saved automatically. */
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" mov r4, r8 \n" /* r4 = r8. */
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" mov r5, r9 \n" /* r5 = r9. */
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" mov r6, r10 \n" /* r6 = r10. */
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" mov r7, r11 \n" /* r7 = r11. */
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" stmia r1!, {r4-r7} \n" /* Store the high registers that are not saved automatically. */
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" mrs r2, psplim \n" /* r2 = PSPLIM. */
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" mrs r3, control \n" /* r3 = CONTROL. */
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" mov r4, lr \n" /* r4 = LR/EXC_RETURN. */
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" subs r1, r1, #48 \n" /* r1 = r1 - 48. */
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" stmia r1!, {r0, r2-r4} \n" /* Store xSecureContext, PSPLIM, CONTROL and LR on the stack. */
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#else /* configENABLE_MPU */
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" subs r1, r1, #44 \n" /* Make space for xSecureContext, PSPLIM, LR and the remaining registers on the stack. */
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" str r1, [r2] \n" /* Save the new top of stack in TCB. */
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" mrs r2, psplim \n" /* r2 = PSPLIM. */
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" mov r3, lr \n" /* r3 = LR/EXC_RETURN. */
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" stmia r1!, {r0, r2-r7} \n" /* Store xSecureContext, PSPLIM, LR and the low registers that are not saved automatically. */
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" mov r4, r8 \n" /* r4 = r8. */
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" mov r5, r9 \n" /* r5 = r9. */
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" mov r6, r10 \n" /* r6 = r10. */
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" mov r7, r11 \n" /* r7 = r11. */
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" stmia r1!, {r4-r7} \n" /* Store the high registers that are not saved automatically. */
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#endif /* configENABLE_MPU */
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" \n"
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" select_next_task: \n"
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" cpsid i \n"
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" bl vTaskSwitchContext \n"
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" cpsie i \n"
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" \n"
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" ldr r2, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
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" ldr r3, [r2] \n" /* Read pxCurrentTCB. */
|
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" ldr r1, [r3] \n" /* The first item in pxCurrentTCB is the task top of stack. r1 now points to the top of stack. */
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" \n"
|
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#if( configENABLE_MPU == 1 )
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" dmb \n" /* Complete outstanding transfers before disabling MPU. */
|
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" ldr r2, xMPUCTRLConst \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
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" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
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" movs r5, #1 \n" /* r5 = 1. */
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" bics r4, r5 \n" /* r4 = r4 & ~r5 i.e. Clear the bit 0 in r4. */
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" str r4, [r2] \n" /* Disable MPU. */
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" \n"
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" adds r3, #4 \n" /* r3 = r3 + 4. r3 now points to MAIR0 in TCB. */
|
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" ldr r4, [r3] \n" /* r4 = *r3 i.e. r4 = MAIR0. */
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" ldr r2, xMAIR0Const \n" /* r2 = 0xe000edc0 [Location of MAIR0]. */
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" str r4, [r2] \n" /* Program MAIR0. */
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" ldr r2, xRNRConst \n" /* r2 = 0xe000ed98 [Location of RNR]. */
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" adds r3, #4 \n" /* r3 = r3 + 4. r3 now points to first RBAR in TCB. */
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" movs r5, #4 \n" /* r5 = 4. */
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" str r5, [r2] \n" /* Program RNR = 4. */
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" ldmia r3!, {r6,r7} \n" /* Read first set of RBAR/RLAR from TCB. */
|
||||
" ldr r4, xRBARConst \n" /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r4!, {r6,r7} \n" /* Write first set of RBAR/RLAR registers. */
|
||||
" movs r5, #5 \n" /* r5 = 5. */
|
||||
" str r5, [r2] \n" /* Program RNR = 5. */
|
||||
" ldmia r3!, {r6,r7} \n" /* Read second set of RBAR/RLAR from TCB. */
|
||||
" ldr r4, xRBARConst \n" /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r4!, {r6,r7} \n" /* Write second set of RBAR/RLAR registers. */
|
||||
" movs r5, #6 \n" /* r5 = 6. */
|
||||
" str r5, [r2] \n" /* Program RNR = 6. */
|
||||
" ldmia r3!, {r6,r7} \n" /* Read third set of RBAR/RLAR from TCB. */
|
||||
" ldr r4, xRBARConst \n" /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r4!, {r6,r7} \n" /* Write third set of RBAR/RLAR registers. */
|
||||
" movs r5, #7 \n" /* r5 = 7. */
|
||||
" str r5, [r2] \n" /* Program RNR = 7. */
|
||||
" ldmia r3!, {r6,r7} \n" /* Read fourth set of RBAR/RLAR from TCB. */
|
||||
" ldr r4, xRBARConst \n" /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r4!, {r6,r7} \n" /* Write fourth set of RBAR/RLAR registers. */
|
||||
" \n"
|
||||
" ldr r2, xMPUCTRLConst \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" movs r5, #1 \n" /* r5 = 1. */
|
||||
" orrs r4, r5 \n" /* r4 = r4 | r5 i.e. Set the bit 0 in r4. */
|
||||
" str r4, [r2] \n" /* Enable MPU. */
|
||||
" dsb \n" /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" ldmia r1!, {r0, r2-r4} \n" /* Read from stack - r0 = xSecureContext, r2 = PSPLIM, r3 = CONTROL and r4 = LR. */
|
||||
" msr psplim, r2 \n" /* Restore the PSPLIM register value for the task. */
|
||||
" msr control, r3 \n" /* Restore the CONTROL register value for the task. */
|
||||
" mov lr, r4 \n" /* LR = r4. */
|
||||
" ldr r2, xSecureContextConst \n" /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
" str r0, [r2] \n" /* Restore the task's xSecureContext. */
|
||||
" cbz r0, restore_ns_context \n" /* If there is no secure context for the task, restore the non-secure context. */
|
||||
" push {r1,r4} \n"
|
||||
" bl SecureContext_LoadContext \n" /* Restore the secure context. */
|
||||
" pop {r1,r4} \n"
|
||||
" mov lr, r4 \n" /* LR = r4. */
|
||||
" lsls r2, r4, #25 \n" /* r2 = r4 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
" bpl restore_ns_context \n" /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
" msr psp, r1 \n" /* Remember the new top of stack for the task. */
|
||||
" bx lr \n"
|
||||
#else /* configENABLE_MPU */
|
||||
" ldmia r1!, {r0, r2-r3} \n" /* Read from stack - r0 = xSecureContext, r2 = PSPLIM and r3 = LR. */
|
||||
" msr psplim, r2 \n" /* Restore the PSPLIM register value for the task. */
|
||||
" mov lr, r3 \n" /* LR = r3. */
|
||||
" ldr r2, xSecureContextConst \n" /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
" str r0, [r2] \n" /* Restore the task's xSecureContext. */
|
||||
" cbz r0, restore_ns_context \n" /* If there is no secure context for the task, restore the non-secure context. */
|
||||
" push {r1,r3} \n"
|
||||
" bl SecureContext_LoadContext \n" /* Restore the secure context. */
|
||||
" pop {r1,r3} \n"
|
||||
" mov lr, r3 \n" /* LR = r3. */
|
||||
" lsls r2, r3, #25 \n" /* r2 = r3 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
" bpl restore_ns_context \n" /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
" msr psp, r1 \n" /* Remember the new top of stack for the task. */
|
||||
" bx lr \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
" restore_ns_context: \n"
|
||||
" adds r1, r1, #16 \n" /* Move to the high registers. */
|
||||
" ldmia r1!, {r4-r7} \n" /* Restore the high registers that are not automatically restored. */
|
||||
" mov r8, r4 \n" /* r8 = r4. */
|
||||
" mov r9, r5 \n" /* r9 = r5. */
|
||||
" mov r10, r6 \n" /* r10 = r6. */
|
||||
" mov r11, r7 \n" /* r11 = r7. */
|
||||
" msr psp, r1 \n" /* Remember the new top of stack for the task. */
|
||||
" subs r1, r1, #32 \n" /* Go back to the low registers. */
|
||||
" ldmia r1!, {r4-r7} \n" /* Restore the low registers that are not automatically restored. */
|
||||
" bx lr \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"pxCurrentTCBConst: .word pxCurrentTCB \n"
|
||||
"xSecureContextConst: .word xSecureContext \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
"xMPUCTRLConst: .word 0xe000ed94 \n"
|
||||
"xMAIR0Const: .word 0xe000edc0 \n"
|
||||
"xRNRConst: .word 0xe000ed98 \n"
|
||||
"xRBARConst: .word 0xe000ed9c \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void SVC_Handler( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" movs r0, #4 \n"
|
||||
" mov r1, lr \n"
|
||||
" tst r0, r1 \n"
|
||||
" beq stacking_used_msp \n"
|
||||
" mrs r0, psp \n"
|
||||
" ldr r2, svchandler_address_const \n"
|
||||
" bx r2 \n"
|
||||
" stacking_used_msp: \n"
|
||||
" mrs r0, msp \n"
|
||||
" ldr r2, svchandler_address_const \n"
|
||||
" bx r2 \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"svchandler_address_const: .word vPortSVCHandler_C \n"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortAllocateSecureContext( uint32_t ulSecureStackSize ) /* __attribute__ (( naked )) */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" svc %0 \n" /* Secure context is allocated in the supervisor call. */
|
||||
" bx lr \n" /* Return. */
|
||||
:: "i" ( portSVC_ALLOCATE_SECURE_CONTEXT ) : "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" ldr r1, [r0] \n" /* The first item in the TCB is the top of the stack. */
|
||||
" ldr r0, [r1] \n" /* The first item on the stack is the task's xSecureContext. */
|
||||
" cmp r0, #0 \n" /* Raise svc if task's xSecureContext is not NULL. */
|
||||
" beq free_secure_context \n"
|
||||
" bx lr \n" /* There is no secure context (xSecureContext is NULL). */
|
||||
" free_secure_context: \n"
|
||||
" svc %0 \n" /* Secure context is freed in the supervisor call. */
|
||||
" bx lr \n" /* Return. */
|
||||
:: "i" ( portSVC_FREE_SECURE_CONTEXT ) : "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
301
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23/portmacro.h
Normal file
301
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23/portmacro.h
Normal file
|
|
@ -0,0 +1,301 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*------------------------------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
*
|
||||
* The settings in this file configure FreeRTOS correctly for the given hardware
|
||||
* and compiler.
|
||||
*
|
||||
* These settings should not be altered.
|
||||
*------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef configENABLE_FPU
|
||||
#error configENABLE_FPU must be defined in FreeRTOSConfig.h. Set configENABLE_FPU to 1 to enable the FPU or 0 to disable the FPU.
|
||||
#endif /* configENABLE_FPU */
|
||||
|
||||
#ifndef configENABLE_MPU
|
||||
#error configENABLE_MPU must be defined in FreeRTOSConfig.h. Set configENABLE_MPU to 1 to enable the MPU or 0 to disable the MPU.
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#ifndef configENABLE_TRUSTZONE
|
||||
#error configENABLE_TRUSTZONE must be defined in FreeRTOSConfig.h. Set configENABLE_TRUSTZONE to 1 to enable TrustZone or 0 to disable TrustZone.
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Type definitions.
|
||||
*/
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
* not need to be guarded with a critical section. */
|
||||
#define portTICK_TYPE_IS_ATOMIC 1
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Architecture specifics.
|
||||
*/
|
||||
#define portARCH_NAME "Cortex-M23"
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portNOP()
|
||||
#define portINLINE __inline
|
||||
#ifndef portFORCE_INLINE
|
||||
#define portFORCE_INLINE inline __attribute__(( always_inline ))
|
||||
#endif
|
||||
#define portHAS_STACK_OVERFLOW_CHECKING 1
|
||||
#define portDONT_DISCARD __attribute__(( used ))
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Extern declarations.
|
||||
*/
|
||||
extern BaseType_t xPortIsInsideInterrupt( void );
|
||||
|
||||
extern void vPortYield( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern void vPortEnterCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
extern void vPortExitCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
extern void vClearInterruptMask( uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
extern void vPortAllocateSecureContext( uint32_t ulSecureStackSize ); /* __attribute__ (( naked )) */
|
||||
extern void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */;
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
extern BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */;
|
||||
extern void vResetPrivilege( void ) /* __attribute__ (( naked )) */;
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief MPU specific constants.
|
||||
*/
|
||||
#if( configENABLE_MPU == 1 )
|
||||
#define portUSING_MPU_WRAPPERS 1
|
||||
#define portPRIVILEGE_BIT ( 0x80000000UL )
|
||||
#else
|
||||
#define portPRIVILEGE_BIT ( 0x0UL )
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
|
||||
/* MPU regions. */
|
||||
#define portPRIVILEGED_FLASH_REGION ( 0UL )
|
||||
#define portUNPRIVILEGED_FLASH_REGION ( 1UL )
|
||||
#define portUNPRIVILEGED_SYSCALLS_REGION ( 2UL )
|
||||
#define portPRIVILEGED_RAM_REGION ( 3UL )
|
||||
#define portSTACK_REGION ( 4UL )
|
||||
#define portFIRST_CONFIGURABLE_REGION ( 5UL )
|
||||
#define portLAST_CONFIGURABLE_REGION ( 7UL )
|
||||
#define portNUM_CONFIGURABLE_REGIONS ( ( portLAST_CONFIGURABLE_REGION - portFIRST_CONFIGURABLE_REGION ) + 1 )
|
||||
#define portTOTAL_NUM_REGIONS ( portNUM_CONFIGURABLE_REGIONS + 1 ) /* Plus one to make space for the stack region. */
|
||||
|
||||
/* Device memory attributes used in MPU_MAIR registers.
|
||||
*
|
||||
* 8-bit values encoded as follows:
|
||||
* Bit[7:4] - 0000 - Device Memory
|
||||
* Bit[3:2] - 00 --> Device-nGnRnE
|
||||
* 01 --> Device-nGnRE
|
||||
* 10 --> Device-nGRE
|
||||
* 11 --> Device-GRE
|
||||
* Bit[1:0] - 00, Reserved.
|
||||
*/
|
||||
#define portMPU_DEVICE_MEMORY_nGnRnE ( 0x00 ) /* 0000 0000 */
|
||||
#define portMPU_DEVICE_MEMORY_nGnRE ( 0x04 ) /* 0000 0100 */
|
||||
#define portMPU_DEVICE_MEMORY_nGRE ( 0x08 ) /* 0000 1000 */
|
||||
#define portMPU_DEVICE_MEMORY_GRE ( 0x0C ) /* 0000 1100 */
|
||||
|
||||
/* Normal memory attributes used in MPU_MAIR registers. */
|
||||
#define portMPU_NORMAL_MEMORY_NON_CACHEABLE ( 0x44 ) /* Non-cacheable. */
|
||||
#define portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE ( 0xFF ) /* Non-Transient, Write-back, Read-Allocate and Write-Allocate. */
|
||||
|
||||
/* Attributes used in MPU_RBAR registers. */
|
||||
#define portMPU_REGION_NON_SHAREABLE ( 0UL << 3UL )
|
||||
#define portMPU_REGION_INNER_SHAREABLE ( 1UL << 3UL )
|
||||
#define portMPU_REGION_OUTER_SHAREABLE ( 2UL << 3UL )
|
||||
|
||||
#define portMPU_REGION_PRIVILEGED_READ_WRITE ( 0UL << 1UL )
|
||||
#define portMPU_REGION_READ_WRITE ( 1UL << 1UL )
|
||||
#define portMPU_REGION_PRIVILEGED_READ_ONLY ( 2UL << 1UL )
|
||||
#define portMPU_REGION_READ_ONLY ( 3UL << 1UL )
|
||||
|
||||
#define portMPU_REGION_EXECUTE_NEVER ( 1UL )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Settings to define an MPU region.
|
||||
*/
|
||||
typedef struct MPURegionSettings
|
||||
{
|
||||
uint32_t ulRBAR; /**< RBAR for the region. */
|
||||
uint32_t ulRLAR; /**< RLAR for the region. */
|
||||
} MPURegionSettings_t;
|
||||
|
||||
/**
|
||||
* @brief MPU settings as stored in the TCB.
|
||||
*/
|
||||
typedef struct MPU_SETTINGS
|
||||
{
|
||||
uint32_t ulMAIR0; /**< MAIR0 for the task containing attributes for all the 4 per task regions. */
|
||||
MPURegionSettings_t xRegionsSettings[ portTOTAL_NUM_REGIONS ]; /**< Settings for 4 per task regions. */
|
||||
} xMPU_SETTINGS;
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief SVC numbers.
|
||||
*/
|
||||
#define portSVC_ALLOCATE_SECURE_CONTEXT 0
|
||||
#define portSVC_FREE_SECURE_CONTEXT 1
|
||||
#define portSVC_START_SCHEDULER 2
|
||||
#define portSVC_RAISE_PRIVILEGE 3
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Scheduler utilities.
|
||||
*/
|
||||
#define portYIELD() vPortYield()
|
||||
#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
|
||||
#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT
|
||||
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Critical section management.
|
||||
*/
|
||||
#define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMask()
|
||||
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vClearInterruptMask( x )
|
||||
#define portDISABLE_INTERRUPTS() __asm volatile ( " cpsid i " ::: "memory" )
|
||||
#define portENABLE_INTERRUPTS() __asm volatile ( " cpsie i " ::: "memory" )
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Task function macros as described on the FreeRTOS.org WEB site.
|
||||
*/
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
/**
|
||||
* @brief Allocate a secure context for the task.
|
||||
*
|
||||
* Tasks are not created with a secure context. Any task that is going to call
|
||||
* secure functions must call portALLOCATE_SECURE_CONTEXT() to allocate itself a
|
||||
* secure context before it calls any secure function.
|
||||
*
|
||||
* @param[in] ulSecureStackSize The size of the secure stack to be allocated.
|
||||
*/
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize ) vPortAllocateSecureContext( ulSecureStackSize )
|
||||
|
||||
/**
|
||||
* @brief Called when a task is deleted to delete the task's secure context,
|
||||
* if it has one.
|
||||
*
|
||||
* @param[in] pxTCB The TCB of the task being deleted.
|
||||
*/
|
||||
#define portCLEAN_UP_TCB( pxTCB ) vPortFreeSecureContext( ( uint32_t * ) pxTCB )
|
||||
#else
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize )
|
||||
#define portCLEAN_UP_TCB( pxTCB )
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
/**
|
||||
* @brief Checks whether or not the processor is privileged.
|
||||
*
|
||||
* @return 1 if the processor is already privileged, 0 otherwise.
|
||||
*/
|
||||
#define portIS_PRIVILEGED() xIsPrivileged()
|
||||
|
||||
/**
|
||||
* @brief Raise an SVC request to raise privilege.
|
||||
*
|
||||
* The SVC handler checks that the SVC was raised from a system call and only
|
||||
* then it raises the privilege. If this is called from any other place,
|
||||
* the privilege is not raised.
|
||||
*/
|
||||
#define portRAISE_PRIVILEGE() __asm volatile ( "svc %0 \n" :: "i" ( portSVC_RAISE_PRIVILEGE ) : "memory" );
|
||||
|
||||
/**
|
||||
* @brief Lowers the privilege level by setting the bit 0 of the CONTROL
|
||||
* register.
|
||||
*/
|
||||
#define portRESET_PRIVILEGE() vResetPrivilege()
|
||||
#else
|
||||
#define portIS_PRIVILEGED()
|
||||
#define portRAISE_PRIVILEGE()
|
||||
#define portRESET_PRIVILEGE()
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Barriers.
|
||||
*/
|
||||
#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
366
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23_NTZ/portasm.c
Normal file
366
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23_NTZ/portasm.c
Normal file
|
|
@ -0,0 +1,366 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
/* Standard includes. */
|
||||
#include <stdint.h>
|
||||
|
||||
/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE ensures that PRIVILEGED_FUNCTION
|
||||
* is defined correctly and privileged functions are placed in correct sections. */
|
||||
#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
|
||||
|
||||
/* Portasm includes. */
|
||||
#include "portasm.h"
|
||||
|
||||
/* MPU_WRAPPERS_INCLUDED_FROM_API_FILE is needed to be defined only for the
|
||||
* header files. */
|
||||
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
|
||||
|
||||
#if( configENABLE_FPU == 1 )
|
||||
#error Cortex-M23 does not have a Floating Point Unit (FPU) and therefore configENABLE_FPU must be set to 0.
|
||||
#endif
|
||||
|
||||
void vRestoreContextOfFirstTask( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" .syntax unified \n"
|
||||
" \n"
|
||||
" ldr r2, pxCurrentTCBConst2 \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r1, [r2] \n" /* Read pxCurrentTCB. */
|
||||
" ldr r0, [r1] \n" /* Read top of stack from TCB - The first item in pxCurrentTCB is the task top of stack. */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" dmb \n" /* Complete outstanding transfers before disabling MPU. */
|
||||
" ldr r2, xMPUCTRLConst2 \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r3, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" movs r4, #1 \n" /* r4 = 1. */
|
||||
" bics r3, r4 \n" /* r3 = r3 & ~r4 i.e. Clear the bit 0 in r3. */
|
||||
" str r3, [r2] \n" /* Disable MPU. */
|
||||
" \n"
|
||||
" adds r1, #4 \n" /* r1 = r1 + 4. r1 now points to MAIR0 in TCB. */
|
||||
" ldr r4, [r1] \n" /* r4 = *r1 i.e. r4 = MAIR0. */
|
||||
" ldr r2, xMAIR0Const2 \n" /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
" str r4, [r2] \n" /* Program MAIR0. */
|
||||
" ldr r2, xRNRConst2 \n" /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
" adds r1, #4 \n" /* r1 = r1 + 4. r1 now points to first RBAR in TCB. */
|
||||
" movs r4, #4 \n" /* r4 = 4. */
|
||||
" str r4, [r2] \n" /* Program RNR = 4. */
|
||||
" ldmia r1!, {r5,r6} \n" /* Read first set of RBAR/RLAR from TCB. */
|
||||
" ldr r3, xRBARConst2 \n" /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r3!, {r5,r6} \n" /* Write first set of RBAR/RLAR registers. */
|
||||
" movs r4, #5 \n" /* r4 = 5. */
|
||||
" str r4, [r2] \n" /* Program RNR = 5. */
|
||||
" ldmia r1!, {r5,r6} \n" /* Read second set of RBAR/RLAR from TCB. */
|
||||
" ldr r3, xRBARConst2 \n" /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r3!, {r5,r6} \n" /* Write second set of RBAR/RLAR registers. */
|
||||
" movs r4, #6 \n" /* r4 = 6. */
|
||||
" str r4, [r2] \n" /* Program RNR = 6. */
|
||||
" ldmia r1!, {r5,r6} \n" /* Read third set of RBAR/RLAR from TCB. */
|
||||
" ldr r3, xRBARConst2 \n" /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r3!, {r5,r6} \n" /* Write third set of RBAR/RLAR registers. */
|
||||
" movs r4, #7 \n" /* r4 = 7. */
|
||||
" str r4, [r2] \n" /* Program RNR = 7. */
|
||||
" ldmia r1!, {r5,r6} \n" /* Read fourth set of RBAR/RLAR from TCB. */
|
||||
" ldr r3, xRBARConst2 \n" /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r3!, {r5,r6} \n" /* Write fourth set of RBAR/RLAR registers. */
|
||||
" \n"
|
||||
" ldr r2, xMPUCTRLConst2 \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r3, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" movs r4, #1 \n" /* r4 = 1. */
|
||||
" orrs r3, r4 \n" /* r3 = r3 | r4 i.e. Set the bit 0 in r3. */
|
||||
" str r3, [r2] \n" /* Enable MPU. */
|
||||
" dsb \n" /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" ldm r0!, {r1-r3} \n" /* Read from stack - r1 = PSPLIM, r2 = CONTROL and r3 = EXC_RETURN. */
|
||||
" msr psplim, r1 \n" /* Set this task's PSPLIM value. */
|
||||
" msr control, r2 \n" /* Set this task's CONTROL value. */
|
||||
" adds r0, #32 \n" /* Discard everything up to r0. */
|
||||
" msr psp, r0 \n" /* This is now the new top of stack to use in the task. */
|
||||
" isb \n"
|
||||
" bx r3 \n" /* Finally, branch to EXC_RETURN. */
|
||||
#else /* configENABLE_MPU */
|
||||
" ldm r0!, {r1-r2} \n" /* Read from stack - r1 = PSPLIM and r2 = EXC_RETURN. */
|
||||
" msr psplim, r1 \n" /* Set this task's PSPLIM value. */
|
||||
" movs r1, #2 \n" /* r1 = 2. */
|
||||
" msr CONTROL, r1 \n" /* Switch to use PSP in the thread mode. */
|
||||
" adds r0, #32 \n" /* Discard everything up to r0. */
|
||||
" msr psp, r0 \n" /* This is now the new top of stack to use in the task. */
|
||||
" isb \n"
|
||||
" bx r2 \n" /* Finally, branch to EXC_RETURN. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"pxCurrentTCBConst2: .word pxCurrentTCB \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
"xMPUCTRLConst2: .word 0xe000ed94 \n"
|
||||
"xMAIR0Const2: .word 0xe000edc0 \n"
|
||||
"xRNRConst2: .word 0xe000ed98 \n"
|
||||
"xRBARConst2: .word 0xe000ed9c \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, control \n" /* r0 = CONTROL. */
|
||||
" movs r1, #1 \n" /* r1 = 1. */
|
||||
" tst r0, r1 \n" /* Perform r0 & r1 (bitwise AND) and update the conditions flag. */
|
||||
" beq running_privileged \n" /* If the result of previous AND operation was 0, branch. */
|
||||
" movs r0, #0 \n" /* CONTROL[0]!=0. Return false to indicate that the processor is not privileged. */
|
||||
" bx lr \n" /* Return. */
|
||||
" running_privileged: \n"
|
||||
" movs r0, #1 \n" /* CONTROL[0]==0. Return true to indicate that the processor is privileged. */
|
||||
" bx lr \n" /* Return. */
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
::: "r0", "r1", "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vRaisePrivilege( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, control \n" /* Read the CONTROL register. */
|
||||
" movs r1, #1 \n" /* r1 = 1. */
|
||||
" bics r0, r1 \n" /* Clear the bit 0. */
|
||||
" msr control, r0 \n" /* Write back the new CONTROL value. */
|
||||
" bx lr \n" /* Return to the caller. */
|
||||
::: "r0", "r1", "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vResetPrivilege( void ) /* __attribute__ (( naked )) */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, control \n" /* r0 = CONTROL. */
|
||||
" movs r1, #1 \n" /* r1 = 1. */
|
||||
" orrs r0, r1 \n" /* r0 = r0 | r1. */
|
||||
" msr control, r0 \n" /* CONTROL = r0. */
|
||||
" bx lr \n" /* Return to the caller. */
|
||||
:::"r0", "r1", "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vStartFirstTask( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" ldr r0, xVTORConst \n" /* Use the NVIC offset register to locate the stack. */
|
||||
" ldr r0, [r0] \n" /* Read the VTOR register which gives the address of vector table. */
|
||||
" ldr r0, [r0] \n" /* The first entry in vector table is stack pointer. */
|
||||
" msr msp, r0 \n" /* Set the MSP back to the start of the stack. */
|
||||
" cpsie i \n" /* Globally enable interrupts. */
|
||||
" dsb \n"
|
||||
" isb \n"
|
||||
" svc %0 \n" /* System call to start the first task. */
|
||||
" nop \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"xVTORConst: .word 0xe000ed08 \n"
|
||||
:: "i" ( portSVC_START_SCHEDULER ) : "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, PRIMASK \n"
|
||||
" cpsid i \n"
|
||||
" bx lr \n"
|
||||
::: "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vClearInterruptMask( __attribute__( ( unused ) ) uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" msr PRIMASK, r0 \n"
|
||||
" bx lr \n"
|
||||
::: "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void PendSV_Handler( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" .syntax unified \n"
|
||||
" \n"
|
||||
" mrs r0, psp \n" /* Read PSP in r0. */
|
||||
" ldr r2, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r1, [r2] \n" /* Read pxCurrentTCB. */
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" subs r0, r0, #44 \n" /* Make space for PSPLIM, CONTROL, LR and the remaining registers on the stack. */
|
||||
" str r0, [r1] \n" /* Save the new top of stack in TCB. */
|
||||
" mrs r1, psplim \n" /* r1 = PSPLIM. */
|
||||
" mrs r2, control \n" /* r2 = CONTROL. */
|
||||
" mov r3, lr \n" /* r3 = LR/EXC_RETURN. */
|
||||
" stmia r0!, {r1-r7} \n" /* Store on the stack - PSPLIM, CONTROL, LR and low registers that are not automatically saved. */
|
||||
" mov r4, r8 \n" /* r4 = r8. */
|
||||
" mov r5, r9 \n" /* r5 = r9. */
|
||||
" mov r6, r10 \n" /* r6 = r10. */
|
||||
" mov r7, r11 \n" /* r7 = r11. */
|
||||
" stmia r0!, {r4-r7} \n" /* Store the high registers that are not saved automatically. */
|
||||
#else /* configENABLE_MPU */
|
||||
" subs r0, r0, #40 \n" /* Make space for PSPLIM, LR and the remaining registers on the stack. */
|
||||
" str r0, [r1] \n" /* Save the new top of stack in TCB. */
|
||||
" mrs r2, psplim \n" /* r2 = PSPLIM. */
|
||||
" mov r3, lr \n" /* r3 = LR/EXC_RETURN. */
|
||||
" stmia r0!, {r2-r7} \n" /* Store on the stack - PSPLIM, LR and low registers that are not automatically saved. */
|
||||
" mov r4, r8 \n" /* r4 = r8. */
|
||||
" mov r5, r9 \n" /* r5 = r9. */
|
||||
" mov r6, r10 \n" /* r6 = r10. */
|
||||
" mov r7, r11 \n" /* r7 = r11. */
|
||||
" stmia r0!, {r4-r7} \n" /* Store the high registers that are not saved automatically. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
" cpsid i \n"
|
||||
" bl vTaskSwitchContext \n"
|
||||
" cpsie i \n"
|
||||
" \n"
|
||||
" ldr r2, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r1, [r2] \n" /* Read pxCurrentTCB. */
|
||||
" ldr r0, [r1] \n" /* The first item in pxCurrentTCB is the task top of stack. r0 now points to the top of stack. */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" dmb \n" /* Complete outstanding transfers before disabling MPU. */
|
||||
" ldr r2, xMPUCTRLConst \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r3, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" movs r4, #1 \n" /* r4 = 1. */
|
||||
" bics r3, r4 \n" /* r3 = r3 & ~r4 i.e. Clear the bit 0 in r3. */
|
||||
" str r3, [r2] \n" /* Disable MPU. */
|
||||
" \n"
|
||||
" adds r1, #4 \n" /* r1 = r1 + 4. r1 now points to MAIR0 in TCB. */
|
||||
" ldr r4, [r1] \n" /* r4 = *r1 i.e. r4 = MAIR0. */
|
||||
" ldr r2, xMAIR0Const \n" /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
" str r4, [r2] \n" /* Program MAIR0. */
|
||||
" ldr r2, xRNRConst \n" /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
" adds r1, #4 \n" /* r1 = r1 + 4. r1 now points to first RBAR in TCB. */
|
||||
" movs r4, #4 \n" /* r4 = 4. */
|
||||
" str r4, [r2] \n" /* Program RNR = 4. */
|
||||
" ldmia r1!, {r5,r6} \n" /* Read first set of RBAR/RLAR from TCB. */
|
||||
" ldr r3, xRBARConst \n" /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r3!, {r5,r6} \n" /* Write first set of RBAR/RLAR registers. */
|
||||
" movs r4, #5 \n" /* r4 = 5. */
|
||||
" str r4, [r2] \n" /* Program RNR = 5. */
|
||||
" ldmia r1!, {r5,r6} \n" /* Read second set of RBAR/RLAR from TCB. */
|
||||
" ldr r3, xRBARConst \n" /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r3!, {r5,r6} \n" /* Write second set of RBAR/RLAR registers. */
|
||||
" movs r4, #6 \n" /* r4 = 6. */
|
||||
" str r4, [r2] \n" /* Program RNR = 6. */
|
||||
" ldmia r1!, {r5,r6} \n" /* Read third set of RBAR/RLAR from TCB. */
|
||||
" ldr r3, xRBARConst \n" /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r3!, {r5,r6} \n" /* Write third set of RBAR/RLAR registers. */
|
||||
" movs r4, #7 \n" /* r4 = 7. */
|
||||
" str r4, [r2] \n" /* Program RNR = 7. */
|
||||
" ldmia r1!, {r5,r6} \n" /* Read fourth set of RBAR/RLAR from TCB. */
|
||||
" ldr r3, xRBARConst \n" /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
" stmia r3!, {r5,r6} \n" /* Write fourth set of RBAR/RLAR registers. */
|
||||
" \n"
|
||||
" ldr r2, xMPUCTRLConst \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r3, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" movs r4, #1 \n" /* r4 = 1. */
|
||||
" orrs r3, r4 \n" /* r3 = r3 | r4 i.e. Set the bit 0 in r3. */
|
||||
" str r3, [r2] \n" /* Enable MPU. */
|
||||
" dsb \n" /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" adds r0, r0, #28 \n" /* Move to the high registers. */
|
||||
" ldmia r0!, {r4-r7} \n" /* Restore the high registers that are not automatically restored. */
|
||||
" mov r8, r4 \n" /* r8 = r4. */
|
||||
" mov r9, r5 \n" /* r9 = r5. */
|
||||
" mov r10, r6 \n" /* r10 = r6. */
|
||||
" mov r11, r7 \n" /* r11 = r7. */
|
||||
" msr psp, r0 \n" /* Remember the new top of stack for the task. */
|
||||
" subs r0, r0, #44 \n" /* Move to the starting of the saved context. */
|
||||
" ldmia r0!, {r1-r7} \n" /* Read from stack - r1 = PSPLIM, r2 = CONTROL, r3 = LR and r4-r7 restored. */
|
||||
" msr psplim, r1 \n" /* Restore the PSPLIM register value for the task. */
|
||||
" msr control, r2 \n" /* Restore the CONTROL register value for the task. */
|
||||
" bx r3 \n"
|
||||
#else /* configENABLE_MPU */
|
||||
" adds r0, r0, #24 \n" /* Move to the high registers. */
|
||||
" ldmia r0!, {r4-r7} \n" /* Restore the high registers that are not automatically restored. */
|
||||
" mov r8, r4 \n" /* r8 = r4. */
|
||||
" mov r9, r5 \n" /* r9 = r5. */
|
||||
" mov r10, r6 \n" /* r10 = r6. */
|
||||
" mov r11, r7 \n" /* r11 = r7. */
|
||||
" msr psp, r0 \n" /* Remember the new top of stack for the task. */
|
||||
" subs r0, r0, #40 \n" /* Move to the starting of the saved context. */
|
||||
" ldmia r0!, {r2-r7} \n" /* Read from stack - r2 = PSPLIM, r3 = LR and r4-r7 restored. */
|
||||
" msr psplim, r2 \n" /* Restore the PSPLIM register value for the task. */
|
||||
" bx r3 \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"pxCurrentTCBConst: .word pxCurrentTCB \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
"xMPUCTRLConst: .word 0xe000ed94 \n"
|
||||
"xMAIR0Const: .word 0xe000edc0 \n"
|
||||
"xRNRConst: .word 0xe000ed98 \n"
|
||||
"xRBARConst: .word 0xe000ed9c \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void SVC_Handler( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" movs r0, #4 \n"
|
||||
" mov r1, lr \n"
|
||||
" tst r0, r1 \n"
|
||||
" beq stacking_used_msp \n"
|
||||
" mrs r0, psp \n"
|
||||
" ldr r2, svchandler_address_const \n"
|
||||
" bx r2 \n"
|
||||
" stacking_used_msp: \n"
|
||||
" mrs r0, msp \n"
|
||||
" ldr r2, svchandler_address_const \n"
|
||||
" bx r2 \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"svchandler_address_const: .word vPortSVCHandler_C \n"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
301
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23_NTZ/portmacro.h
Normal file
301
portable/ARMv8M/non_secure/portable/GCC/ARM_CM23_NTZ/portmacro.h
Normal file
|
|
@ -0,0 +1,301 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*------------------------------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
*
|
||||
* The settings in this file configure FreeRTOS correctly for the given hardware
|
||||
* and compiler.
|
||||
*
|
||||
* These settings should not be altered.
|
||||
*------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef configENABLE_FPU
|
||||
#error configENABLE_FPU must be defined in FreeRTOSConfig.h. Set configENABLE_FPU to 1 to enable the FPU or 0 to disable the FPU.
|
||||
#endif /* configENABLE_FPU */
|
||||
|
||||
#ifndef configENABLE_MPU
|
||||
#error configENABLE_MPU must be defined in FreeRTOSConfig.h. Set configENABLE_MPU to 1 to enable the MPU or 0 to disable the MPU.
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#ifndef configENABLE_TRUSTZONE
|
||||
#error configENABLE_TRUSTZONE must be defined in FreeRTOSConfig.h. Set configENABLE_TRUSTZONE to 1 to enable TrustZone or 0 to disable TrustZone.
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Type definitions.
|
||||
*/
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
* not need to be guarded with a critical section. */
|
||||
#define portTICK_TYPE_IS_ATOMIC 1
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Architecture specifics.
|
||||
*/
|
||||
#define portARCH_NAME "Cortex-M23"
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portNOP()
|
||||
#define portINLINE __inline
|
||||
#ifndef portFORCE_INLINE
|
||||
#define portFORCE_INLINE inline __attribute__(( always_inline ))
|
||||
#endif
|
||||
#define portHAS_STACK_OVERFLOW_CHECKING 1
|
||||
#define portDONT_DISCARD __attribute__(( used ))
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Extern declarations.
|
||||
*/
|
||||
extern BaseType_t xPortIsInsideInterrupt( void );
|
||||
|
||||
extern void vPortYield( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern void vPortEnterCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
extern void vPortExitCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
extern void vClearInterruptMask( uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
extern void vPortAllocateSecureContext( uint32_t ulSecureStackSize ); /* __attribute__ (( naked )) */
|
||||
extern void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */;
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
extern BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */;
|
||||
extern void vResetPrivilege( void ) /* __attribute__ (( naked )) */;
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief MPU specific constants.
|
||||
*/
|
||||
#if( configENABLE_MPU == 1 )
|
||||
#define portUSING_MPU_WRAPPERS 1
|
||||
#define portPRIVILEGE_BIT ( 0x80000000UL )
|
||||
#else
|
||||
#define portPRIVILEGE_BIT ( 0x0UL )
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
|
||||
/* MPU regions. */
|
||||
#define portPRIVILEGED_FLASH_REGION ( 0UL )
|
||||
#define portUNPRIVILEGED_FLASH_REGION ( 1UL )
|
||||
#define portUNPRIVILEGED_SYSCALLS_REGION ( 2UL )
|
||||
#define portPRIVILEGED_RAM_REGION ( 3UL )
|
||||
#define portSTACK_REGION ( 4UL )
|
||||
#define portFIRST_CONFIGURABLE_REGION ( 5UL )
|
||||
#define portLAST_CONFIGURABLE_REGION ( 7UL )
|
||||
#define portNUM_CONFIGURABLE_REGIONS ( ( portLAST_CONFIGURABLE_REGION - portFIRST_CONFIGURABLE_REGION ) + 1 )
|
||||
#define portTOTAL_NUM_REGIONS ( portNUM_CONFIGURABLE_REGIONS + 1 ) /* Plus one to make space for the stack region. */
|
||||
|
||||
/* Device memory attributes used in MPU_MAIR registers.
|
||||
*
|
||||
* 8-bit values encoded as follows:
|
||||
* Bit[7:4] - 0000 - Device Memory
|
||||
* Bit[3:2] - 00 --> Device-nGnRnE
|
||||
* 01 --> Device-nGnRE
|
||||
* 10 --> Device-nGRE
|
||||
* 11 --> Device-GRE
|
||||
* Bit[1:0] - 00, Reserved.
|
||||
*/
|
||||
#define portMPU_DEVICE_MEMORY_nGnRnE ( 0x00 ) /* 0000 0000 */
|
||||
#define portMPU_DEVICE_MEMORY_nGnRE ( 0x04 ) /* 0000 0100 */
|
||||
#define portMPU_DEVICE_MEMORY_nGRE ( 0x08 ) /* 0000 1000 */
|
||||
#define portMPU_DEVICE_MEMORY_GRE ( 0x0C ) /* 0000 1100 */
|
||||
|
||||
/* Normal memory attributes used in MPU_MAIR registers. */
|
||||
#define portMPU_NORMAL_MEMORY_NON_CACHEABLE ( 0x44 ) /* Non-cacheable. */
|
||||
#define portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE ( 0xFF ) /* Non-Transient, Write-back, Read-Allocate and Write-Allocate. */
|
||||
|
||||
/* Attributes used in MPU_RBAR registers. */
|
||||
#define portMPU_REGION_NON_SHAREABLE ( 0UL << 3UL )
|
||||
#define portMPU_REGION_INNER_SHAREABLE ( 1UL << 3UL )
|
||||
#define portMPU_REGION_OUTER_SHAREABLE ( 2UL << 3UL )
|
||||
|
||||
#define portMPU_REGION_PRIVILEGED_READ_WRITE ( 0UL << 1UL )
|
||||
#define portMPU_REGION_READ_WRITE ( 1UL << 1UL )
|
||||
#define portMPU_REGION_PRIVILEGED_READ_ONLY ( 2UL << 1UL )
|
||||
#define portMPU_REGION_READ_ONLY ( 3UL << 1UL )
|
||||
|
||||
#define portMPU_REGION_EXECUTE_NEVER ( 1UL )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Settings to define an MPU region.
|
||||
*/
|
||||
typedef struct MPURegionSettings
|
||||
{
|
||||
uint32_t ulRBAR; /**< RBAR for the region. */
|
||||
uint32_t ulRLAR; /**< RLAR for the region. */
|
||||
} MPURegionSettings_t;
|
||||
|
||||
/**
|
||||
* @brief MPU settings as stored in the TCB.
|
||||
*/
|
||||
typedef struct MPU_SETTINGS
|
||||
{
|
||||
uint32_t ulMAIR0; /**< MAIR0 for the task containing attributes for all the 4 per task regions. */
|
||||
MPURegionSettings_t xRegionsSettings[ portTOTAL_NUM_REGIONS ]; /**< Settings for 4 per task regions. */
|
||||
} xMPU_SETTINGS;
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief SVC numbers.
|
||||
*/
|
||||
#define portSVC_ALLOCATE_SECURE_CONTEXT 0
|
||||
#define portSVC_FREE_SECURE_CONTEXT 1
|
||||
#define portSVC_START_SCHEDULER 2
|
||||
#define portSVC_RAISE_PRIVILEGE 3
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Scheduler utilities.
|
||||
*/
|
||||
#define portYIELD() vPortYield()
|
||||
#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
|
||||
#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT
|
||||
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Critical section management.
|
||||
*/
|
||||
#define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMask()
|
||||
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vClearInterruptMask( x )
|
||||
#define portDISABLE_INTERRUPTS() __asm volatile ( " cpsid i " ::: "memory" )
|
||||
#define portENABLE_INTERRUPTS() __asm volatile ( " cpsie i " ::: "memory" )
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Task function macros as described on the FreeRTOS.org WEB site.
|
||||
*/
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
/**
|
||||
* @brief Allocate a secure context for the task.
|
||||
*
|
||||
* Tasks are not created with a secure context. Any task that is going to call
|
||||
* secure functions must call portALLOCATE_SECURE_CONTEXT() to allocate itself a
|
||||
* secure context before it calls any secure function.
|
||||
*
|
||||
* @param[in] ulSecureStackSize The size of the secure stack to be allocated.
|
||||
*/
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize ) vPortAllocateSecureContext( ulSecureStackSize )
|
||||
|
||||
/**
|
||||
* @brief Called when a task is deleted to delete the task's secure context,
|
||||
* if it has one.
|
||||
*
|
||||
* @param[in] pxTCB The TCB of the task being deleted.
|
||||
*/
|
||||
#define portCLEAN_UP_TCB( pxTCB ) vPortFreeSecureContext( ( uint32_t * ) pxTCB )
|
||||
#else
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize )
|
||||
#define portCLEAN_UP_TCB( pxTCB )
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
/**
|
||||
* @brief Checks whether or not the processor is privileged.
|
||||
*
|
||||
* @return 1 if the processor is already privileged, 0 otherwise.
|
||||
*/
|
||||
#define portIS_PRIVILEGED() xIsPrivileged()
|
||||
|
||||
/**
|
||||
* @brief Raise an SVC request to raise privilege.
|
||||
*
|
||||
* The SVC handler checks that the SVC was raised from a system call and only
|
||||
* then it raises the privilege. If this is called from any other place,
|
||||
* the privilege is not raised.
|
||||
*/
|
||||
#define portRAISE_PRIVILEGE() __asm volatile ( "svc %0 \n" :: "i" ( portSVC_RAISE_PRIVILEGE ) : "memory" );
|
||||
|
||||
/**
|
||||
* @brief Lowers the privilege level by setting the bit 0 of the CONTROL
|
||||
* register.
|
||||
*/
|
||||
#define portRESET_PRIVILEGE() vResetPrivilege()
|
||||
#else
|
||||
#define portIS_PRIVILEGED()
|
||||
#define portRAISE_PRIVILEGE()
|
||||
#define portRESET_PRIVILEGE()
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Barriers.
|
||||
*/
|
||||
#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
410
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33/portasm.c
Normal file
410
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33/portasm.c
Normal file
|
|
@ -0,0 +1,410 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
/* Standard includes. */
|
||||
#include <stdint.h>
|
||||
|
||||
/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE ensures that PRIVILEGED_FUNCTION
|
||||
* is defined correctly and privileged functions are placed in correct sections. */
|
||||
#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
|
||||
|
||||
/* Portasm includes. */
|
||||
#include "portasm.h"
|
||||
|
||||
/* MPU_WRAPPERS_INCLUDED_FROM_API_FILE is needed to be defined only for the
|
||||
* header files. */
|
||||
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
|
||||
|
||||
void vRestoreContextOfFirstTask( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" .syntax unified \n"
|
||||
" \n"
|
||||
" ldr r2, pxCurrentTCBConst2 \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r3, [r2] \n" /* Read pxCurrentTCB. */
|
||||
" ldr r0, [r3] \n" /* Read top of stack from TCB - The first item in pxCurrentTCB is the task top of stack. */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" dmb \n" /* Complete outstanding transfers before disabling MPU. */
|
||||
" ldr r2, xMPUCTRLConst2 \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" bic r4, #1 \n" /* r4 = r4 & ~1 i.e. Clear the bit 0 in r4. */
|
||||
" str r4, [r2] \n" /* Disable MPU. */
|
||||
" \n"
|
||||
" adds r3, #4 \n" /* r3 = r3 + 4. r3 now points to MAIR0 in TCB. */
|
||||
" ldr r4, [r3] \n" /* r4 = *r3 i.e. r4 = MAIR0. */
|
||||
" ldr r2, xMAIR0Const2 \n" /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
" str r4, [r2] \n" /* Program MAIR0. */
|
||||
" ldr r2, xRNRConst2 \n" /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
" movs r4, #4 \n" /* r4 = 4. */
|
||||
" str r4, [r2] \n" /* Program RNR = 4. */
|
||||
" adds r3, #4 \n" /* r3 = r3 + 4. r3 now points to first RBAR in TCB. */
|
||||
" ldr r2, xRBARConst2 \n" /* r2 = 0xe000ed9c [Location of RBAR]. */
|
||||
" ldmia r3!, {r4-r11} \n" /* Read 4 set of RBAR/RLAR registers from TCB. */
|
||||
" stmia r2!, {r4-r11} \n" /* Write 4 set of RBAR/RLAR registers using alias registers. */
|
||||
" \n"
|
||||
" ldr r2, xMPUCTRLConst2 \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" orr r4, #1 \n" /* r4 = r4 | 1 i.e. Set the bit 0 in r4. */
|
||||
" str r4, [r2] \n" /* Enable MPU. */
|
||||
" dsb \n" /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" ldm r0!, {r1-r4} \n" /* Read from stack - r1 = xSecureContext, r2 = PSPLIM, r3 = CONTROL and r4 = EXC_RETURN. */
|
||||
" ldr r5, xSecureContextConst2 \n"
|
||||
" str r1, [r5] \n" /* Set xSecureContext to this task's value for the same. */
|
||||
" msr psplim, r2 \n" /* Set this task's PSPLIM value. */
|
||||
" msr control, r3 \n" /* Set this task's CONTROL value. */
|
||||
" adds r0, #32 \n" /* Discard everything up to r0. */
|
||||
" msr psp, r0 \n" /* This is now the new top of stack to use in the task. */
|
||||
" isb \n"
|
||||
" bx r4 \n" /* Finally, branch to EXC_RETURN. */
|
||||
#else /* configENABLE_MPU */
|
||||
" ldm r0!, {r1-r3} \n" /* Read from stack - r1 = xSecureContext, r2 = PSPLIM and r3 = EXC_RETURN. */
|
||||
" ldr r4, xSecureContextConst2 \n"
|
||||
" str r1, [r4] \n" /* Set xSecureContext to this task's value for the same. */
|
||||
" msr psplim, r2 \n" /* Set this task's PSPLIM value. */
|
||||
" movs r1, #2 \n" /* r1 = 2. */
|
||||
" msr CONTROL, r1 \n" /* Switch to use PSP in the thread mode. */
|
||||
" adds r0, #32 \n" /* Discard everything up to r0. */
|
||||
" msr psp, r0 \n" /* This is now the new top of stack to use in the task. */
|
||||
" isb \n"
|
||||
" bx r3 \n" /* Finally, branch to EXC_RETURN. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"pxCurrentTCBConst2: .word pxCurrentTCB \n"
|
||||
"xSecureContextConst2: .word xSecureContext \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
"xMPUCTRLConst2: .word 0xe000ed94 \n"
|
||||
"xMAIR0Const2: .word 0xe000edc0 \n"
|
||||
"xRNRConst2: .word 0xe000ed98 \n"
|
||||
"xRBARConst2: .word 0xe000ed9c \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, control \n" /* r0 = CONTROL. */
|
||||
" tst r0, #1 \n" /* Perform r0 & 1 (bitwise AND) and update the conditions flag. */
|
||||
" ite ne \n"
|
||||
" movne r0, #0 \n" /* CONTROL[0]!=0. Return false to indicate that the processor is not privileged. */
|
||||
" moveq r0, #1 \n" /* CONTROL[0]==0. Return true to indicate that the processor is privileged. */
|
||||
" bx lr \n" /* Return. */
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
::: "r0", "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vRaisePrivilege( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, control \n" /* Read the CONTROL register. */
|
||||
" bic r0, #1 \n" /* Clear the bit 0. */
|
||||
" msr control, r0 \n" /* Write back the new CONTROL value. */
|
||||
" bx lr \n" /* Return to the caller. */
|
||||
::: "r0", "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vResetPrivilege( void ) /* __attribute__ (( naked )) */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, control \n" /* r0 = CONTROL. */
|
||||
" orr r0, #1 \n" /* r0 = r0 | 1. */
|
||||
" msr control, r0 \n" /* CONTROL = r0. */
|
||||
" bx lr \n" /* Return to the caller. */
|
||||
:::"r0", "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vStartFirstTask( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" ldr r0, xVTORConst \n" /* Use the NVIC offset register to locate the stack. */
|
||||
" ldr r0, [r0] \n" /* Read the VTOR register which gives the address of vector table. */
|
||||
" ldr r0, [r0] \n" /* The first entry in vector table is stack pointer. */
|
||||
" msr msp, r0 \n" /* Set the MSP back to the start of the stack. */
|
||||
" cpsie i \n" /* Globally enable interrupts. */
|
||||
" cpsie f \n"
|
||||
" dsb \n"
|
||||
" isb \n"
|
||||
" svc %0 \n" /* System call to start the first task. */
|
||||
" nop \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"xVTORConst: .word 0xe000ed08 \n"
|
||||
:: "i" ( portSVC_START_SCHEDULER ) : "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, basepri \n" /* r0 = basepri. Return original basepri value. */
|
||||
" mov r1, %0 \n" /* r1 = configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
" msr basepri, r1 \n" /* Disable interrupts upto configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
" dsb \n"
|
||||
" isb \n"
|
||||
" bx lr \n" /* Return. */
|
||||
:: "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) : "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vClearInterruptMask( __attribute__( ( unused ) ) uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" msr basepri, r0 \n" /* basepri = ulMask. */
|
||||
" dsb \n"
|
||||
" isb \n"
|
||||
" bx lr \n" /* Return. */
|
||||
::: "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void PendSV_Handler( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" .syntax unified \n"
|
||||
" .extern SecureContext_SaveContext \n"
|
||||
" .extern SecureContext_LoadContext \n"
|
||||
" \n"
|
||||
" mrs r1, psp \n" /* Read PSP in r1. */
|
||||
" ldr r2, xSecureContextConst \n" /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
" ldr r0, [r2] \n" /* Read xSecureContext - Value of xSecureContext must be in r0 as it is used as a parameter later. */
|
||||
" \n"
|
||||
" cbz r0, save_ns_context \n" /* No secure context to save. */
|
||||
" push {r0-r2, r14} \n"
|
||||
" bl SecureContext_SaveContext \n"
|
||||
" pop {r0-r3} \n" /* LR is now in r3. */
|
||||
" mov lr, r3 \n" /* LR = r3. */
|
||||
" lsls r2, r3, #25 \n" /* r2 = r3 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
" bpl save_ns_context \n" /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
" ldr r3, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r2, [r3] \n" /* Read pxCurrentTCB. */
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" subs r1, r1, #16 \n" /* Make space for xSecureContext, PSPLIM, CONTROL and LR on the stack. */
|
||||
" str r1, [r2] \n" /* Save the new top of stack in TCB. */
|
||||
" mrs r2, psplim \n" /* r2 = PSPLIM. */
|
||||
" mrs r3, control \n" /* r3 = CONTROL. */
|
||||
" mov r4, lr \n" /* r4 = LR/EXC_RETURN. */
|
||||
" stmia r1!, {r0, r2-r4} \n" /* Store xSecureContext, PSPLIM, CONTROL and LR on the stack. */
|
||||
#else /* configENABLE_MPU */
|
||||
" subs r1, r1, #12 \n" /* Make space for xSecureContext, PSPLIM and LR on the stack. */
|
||||
" str r1, [r2] \n" /* Save the new top of stack in TCB. */
|
||||
" mrs r2, psplim \n" /* r2 = PSPLIM. */
|
||||
" mov r3, lr \n" /* r3 = LR/EXC_RETURN. */
|
||||
" stmia r1!, {r0, r2-r3} \n" /* Store xSecureContext, PSPLIM and LR on the stack. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" b select_next_task \n"
|
||||
" \n"
|
||||
" save_ns_context: \n"
|
||||
" ldr r3, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r2, [r3] \n" /* Read pxCurrentTCB. */
|
||||
#if( configENABLE_FPU == 1 )
|
||||
" tst lr, #0x10 \n" /* Test Bit[4] in LR. Bit[4] of EXC_RETURN is 0 if the FPU is in use. */
|
||||
" it eq \n"
|
||||
" vstmdbeq r1!, {s16-s31} \n" /* Store the FPU registers which are not saved automatically. */
|
||||
#endif /* configENABLE_FPU */
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" subs r1, r1, #48 \n" /* Make space for xSecureContext, PSPLIM, CONTROL, LR and the remaining registers on the stack. */
|
||||
" str r1, [r2] \n" /* Save the new top of stack in TCB. */
|
||||
" adds r1, r1, #16 \n" /* r1 = r1 + 16. */
|
||||
" stm r1, {r4-r11} \n" /* Store the registers that are not saved automatically. */
|
||||
" mrs r2, psplim \n" /* r2 = PSPLIM. */
|
||||
" mrs r3, control \n" /* r3 = CONTROL. */
|
||||
" mov r4, lr \n" /* r4 = LR/EXC_RETURN. */
|
||||
" subs r1, r1, #16 \n" /* r1 = r1 - 16. */
|
||||
" stm r1, {r0, r2-r4} \n" /* Store xSecureContext, PSPLIM, CONTROL and LR on the stack. */
|
||||
#else /* configENABLE_MPU */
|
||||
" subs r1, r1, #44 \n" /* Make space for xSecureContext, PSPLIM, LR and the remaining registers on the stack. */
|
||||
" str r1, [r2] \n" /* Save the new top of stack in TCB. */
|
||||
" adds r1, r1, #12 \n" /* r1 = r1 + 12. */
|
||||
" stm r1, {r4-r11} \n" /* Store the registers that are not saved automatically. */
|
||||
" mrs r2, psplim \n" /* r2 = PSPLIM. */
|
||||
" mov r3, lr \n" /* r3 = LR/EXC_RETURN. */
|
||||
" subs r1, r1, #12 \n" /* r1 = r1 - 12. */
|
||||
" stmia r1!, {r0, r2-r3} \n" /* Store xSecureContext, PSPLIM and LR on the stack. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
" select_next_task: \n"
|
||||
" mov r0, %0 \n" /* r0 = configMAX_SYSCALL_INTERRUPT_PRIORITY */
|
||||
" msr basepri, r0 \n" /* Disable interrupts upto configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
" dsb \n"
|
||||
" isb \n"
|
||||
" bl vTaskSwitchContext \n"
|
||||
" mov r0, #0 \n" /* r0 = 0. */
|
||||
" msr basepri, r0 \n" /* Enable interrupts. */
|
||||
" \n"
|
||||
" ldr r2, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r3, [r2] \n" /* Read pxCurrentTCB. */
|
||||
" ldr r1, [r3] \n" /* The first item in pxCurrentTCB is the task top of stack. r1 now points to the top of stack. */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" dmb \n" /* Complete outstanding transfers before disabling MPU. */
|
||||
" ldr r2, xMPUCTRLConst \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" bic r4, #1 \n" /* r4 = r4 & ~1 i.e. Clear the bit 0 in r4. */
|
||||
" str r4, [r2] \n" /* Disable MPU. */
|
||||
" \n"
|
||||
" adds r3, #4 \n" /* r3 = r3 + 4. r3 now points to MAIR0 in TCB. */
|
||||
" ldr r4, [r3] \n" /* r4 = *r3 i.e. r4 = MAIR0. */
|
||||
" ldr r2, xMAIR0Const \n" /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
" str r4, [r2] \n" /* Program MAIR0. */
|
||||
" ldr r2, xRNRConst \n" /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
" movs r4, #4 \n" /* r4 = 4. */
|
||||
" str r4, [r2] \n" /* Program RNR = 4. */
|
||||
" adds r3, #4 \n" /* r3 = r3 + 4. r3 now points to first RBAR in TCB. */
|
||||
" ldr r2, xRBARConst \n" /* r2 = 0xe000ed9c [Location of RBAR]. */
|
||||
" ldmia r3!, {r4-r11} \n" /* Read 4 sets of RBAR/RLAR registers from TCB. */
|
||||
" stmia r2!, {r4-r11} \n" /* Write 4 set of RBAR/RLAR registers using alias registers. */
|
||||
" \n"
|
||||
" ldr r2, xMPUCTRLConst \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" orr r4, #1 \n" /* r4 = r4 | 1 i.e. Set the bit 0 in r4. */
|
||||
" str r4, [r2] \n" /* Enable MPU. */
|
||||
" dsb \n" /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" ldmia r1!, {r0, r2-r4} \n" /* Read from stack - r0 = xSecureContext, r2 = PSPLIM, r3 = CONTROL and r4 = LR. */
|
||||
" msr psplim, r2 \n" /* Restore the PSPLIM register value for the task. */
|
||||
" msr control, r3 \n" /* Restore the CONTROL register value for the task. */
|
||||
" mov lr, r4 \n" /* LR = r4. */
|
||||
" ldr r2, xSecureContextConst \n" /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
" str r0, [r2] \n" /* Restore the task's xSecureContext. */
|
||||
" cbz r0, restore_ns_context \n" /* If there is no secure context for the task, restore the non-secure context. */
|
||||
" push {r1,r4} \n"
|
||||
" bl SecureContext_LoadContext \n" /* Restore the secure context. */
|
||||
" pop {r1,r4} \n"
|
||||
" mov lr, r4 \n" /* LR = r4. */
|
||||
" lsls r2, r4, #25 \n" /* r2 = r4 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
" bpl restore_ns_context \n" /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
" msr psp, r1 \n" /* Remember the new top of stack for the task. */
|
||||
" bx lr \n"
|
||||
#else /* configENABLE_MPU */
|
||||
" ldmia r1!, {r0, r2-r3} \n" /* Read from stack - r0 = xSecureContext, r2 = PSPLIM and r3 = LR. */
|
||||
" msr psplim, r2 \n" /* Restore the PSPLIM register value for the task. */
|
||||
" mov lr, r3 \n" /* LR = r3. */
|
||||
" ldr r2, xSecureContextConst \n" /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
" str r0, [r2] \n" /* Restore the task's xSecureContext. */
|
||||
" cbz r0, restore_ns_context \n" /* If there is no secure context for the task, restore the non-secure context. */
|
||||
" push {r1,r3} \n"
|
||||
" bl SecureContext_LoadContext \n" /* Restore the secure context. */
|
||||
" pop {r1,r3} \n"
|
||||
" mov lr, r3 \n" /* LR = r3. */
|
||||
" lsls r2, r3, #25 \n" /* r2 = r3 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
" bpl restore_ns_context \n" /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
" msr psp, r1 \n" /* Remember the new top of stack for the task. */
|
||||
" bx lr \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
" restore_ns_context: \n"
|
||||
" ldmia r1!, {r4-r11} \n" /* Restore the registers that are not automatically restored. */
|
||||
#if( configENABLE_FPU == 1 )
|
||||
" tst lr, #0x10 \n" /* Test Bit[4] in LR. Bit[4] of EXC_RETURN is 0 if the FPU is in use. */
|
||||
" it eq \n"
|
||||
" vldmiaeq r1!, {s16-s31} \n" /* Restore the FPU registers which are not restored automatically. */
|
||||
#endif /* configENABLE_FPU */
|
||||
" msr psp, r1 \n" /* Remember the new top of stack for the task. */
|
||||
" bx lr \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"pxCurrentTCBConst: .word pxCurrentTCB \n"
|
||||
"xSecureContextConst: .word xSecureContext \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
"xMPUCTRLConst: .word 0xe000ed94 \n"
|
||||
"xMAIR0Const: .word 0xe000edc0 \n"
|
||||
"xRNRConst: .word 0xe000ed98 \n"
|
||||
"xRBARConst: .word 0xe000ed9c \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
:: "i"( configMAX_SYSCALL_INTERRUPT_PRIORITY )
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void SVC_Handler( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" tst lr, #4 \n"
|
||||
" ite eq \n"
|
||||
" mrseq r0, msp \n"
|
||||
" mrsne r0, psp \n"
|
||||
" ldr r1, svchandler_address_const \n"
|
||||
" bx r1 \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"svchandler_address_const: .word vPortSVCHandler_C \n"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortAllocateSecureContext( uint32_t ulSecureStackSize ) /* __attribute__ (( naked )) */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" svc %0 \n" /* Secure context is allocated in the supervisor call. */
|
||||
" bx lr \n" /* Return. */
|
||||
:: "i" ( portSVC_ALLOCATE_SECURE_CONTEXT ) : "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" ldr r1, [r0] \n" /* The first item in the TCB is the top of the stack. */
|
||||
" ldr r0, [r1] \n" /* The first item on the stack is the task's xSecureContext. */
|
||||
" cmp r0, #0 \n" /* Raise svc if task's xSecureContext is not NULL. */
|
||||
" it ne \n"
|
||||
" svcne %0 \n" /* Secure context is freed in the supervisor call. */
|
||||
" bx lr \n" /* Return. */
|
||||
:: "i" ( portSVC_FREE_SECURE_CONTEXT ) : "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
301
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33/portmacro.h
Normal file
301
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33/portmacro.h
Normal file
|
|
@ -0,0 +1,301 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*------------------------------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
*
|
||||
* The settings in this file configure FreeRTOS correctly for the given hardware
|
||||
* and compiler.
|
||||
*
|
||||
* These settings should not be altered.
|
||||
*------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef configENABLE_FPU
|
||||
#error configENABLE_FPU must be defined in FreeRTOSConfig.h. Set configENABLE_FPU to 1 to enable the FPU or 0 to disable the FPU.
|
||||
#endif /* configENABLE_FPU */
|
||||
|
||||
#ifndef configENABLE_MPU
|
||||
#error configENABLE_MPU must be defined in FreeRTOSConfig.h. Set configENABLE_MPU to 1 to enable the MPU or 0 to disable the MPU.
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#ifndef configENABLE_TRUSTZONE
|
||||
#error configENABLE_TRUSTZONE must be defined in FreeRTOSConfig.h. Set configENABLE_TRUSTZONE to 1 to enable TrustZone or 0 to disable TrustZone.
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Type definitions.
|
||||
*/
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
* not need to be guarded with a critical section. */
|
||||
#define portTICK_TYPE_IS_ATOMIC 1
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Architecture specifics.
|
||||
*/
|
||||
#define portARCH_NAME "Cortex-M33"
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portNOP()
|
||||
#define portINLINE __inline
|
||||
#ifndef portFORCE_INLINE
|
||||
#define portFORCE_INLINE inline __attribute__(( always_inline ))
|
||||
#endif
|
||||
#define portHAS_STACK_OVERFLOW_CHECKING 1
|
||||
#define portDONT_DISCARD __attribute__(( used ))
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Extern declarations.
|
||||
*/
|
||||
extern BaseType_t xPortIsInsideInterrupt( void );
|
||||
|
||||
extern void vPortYield( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern void vPortEnterCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
extern void vPortExitCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
extern void vClearInterruptMask( uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
extern void vPortAllocateSecureContext( uint32_t ulSecureStackSize ); /* __attribute__ (( naked )) */
|
||||
extern void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */;
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
extern BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */;
|
||||
extern void vResetPrivilege( void ) /* __attribute__ (( naked )) */;
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief MPU specific constants.
|
||||
*/
|
||||
#if( configENABLE_MPU == 1 )
|
||||
#define portUSING_MPU_WRAPPERS 1
|
||||
#define portPRIVILEGE_BIT ( 0x80000000UL )
|
||||
#else
|
||||
#define portPRIVILEGE_BIT ( 0x0UL )
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
|
||||
/* MPU regions. */
|
||||
#define portPRIVILEGED_FLASH_REGION ( 0UL )
|
||||
#define portUNPRIVILEGED_FLASH_REGION ( 1UL )
|
||||
#define portUNPRIVILEGED_SYSCALLS_REGION ( 2UL )
|
||||
#define portPRIVILEGED_RAM_REGION ( 3UL )
|
||||
#define portSTACK_REGION ( 4UL )
|
||||
#define portFIRST_CONFIGURABLE_REGION ( 5UL )
|
||||
#define portLAST_CONFIGURABLE_REGION ( 7UL )
|
||||
#define portNUM_CONFIGURABLE_REGIONS ( ( portLAST_CONFIGURABLE_REGION - portFIRST_CONFIGURABLE_REGION ) + 1 )
|
||||
#define portTOTAL_NUM_REGIONS ( portNUM_CONFIGURABLE_REGIONS + 1 ) /* Plus one to make space for the stack region. */
|
||||
|
||||
/* Device memory attributes used in MPU_MAIR registers.
|
||||
*
|
||||
* 8-bit values encoded as follows:
|
||||
* Bit[7:4] - 0000 - Device Memory
|
||||
* Bit[3:2] - 00 --> Device-nGnRnE
|
||||
* 01 --> Device-nGnRE
|
||||
* 10 --> Device-nGRE
|
||||
* 11 --> Device-GRE
|
||||
* Bit[1:0] - 00, Reserved.
|
||||
*/
|
||||
#define portMPU_DEVICE_MEMORY_nGnRnE ( 0x00 ) /* 0000 0000 */
|
||||
#define portMPU_DEVICE_MEMORY_nGnRE ( 0x04 ) /* 0000 0100 */
|
||||
#define portMPU_DEVICE_MEMORY_nGRE ( 0x08 ) /* 0000 1000 */
|
||||
#define portMPU_DEVICE_MEMORY_GRE ( 0x0C ) /* 0000 1100 */
|
||||
|
||||
/* Normal memory attributes used in MPU_MAIR registers. */
|
||||
#define portMPU_NORMAL_MEMORY_NON_CACHEABLE ( 0x44 ) /* Non-cacheable. */
|
||||
#define portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE ( 0xFF ) /* Non-Transient, Write-back, Read-Allocate and Write-Allocate. */
|
||||
|
||||
/* Attributes used in MPU_RBAR registers. */
|
||||
#define portMPU_REGION_NON_SHAREABLE ( 0UL << 3UL )
|
||||
#define portMPU_REGION_INNER_SHAREABLE ( 1UL << 3UL )
|
||||
#define portMPU_REGION_OUTER_SHAREABLE ( 2UL << 3UL )
|
||||
|
||||
#define portMPU_REGION_PRIVILEGED_READ_WRITE ( 0UL << 1UL )
|
||||
#define portMPU_REGION_READ_WRITE ( 1UL << 1UL )
|
||||
#define portMPU_REGION_PRIVILEGED_READ_ONLY ( 2UL << 1UL )
|
||||
#define portMPU_REGION_READ_ONLY ( 3UL << 1UL )
|
||||
|
||||
#define portMPU_REGION_EXECUTE_NEVER ( 1UL )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Settings to define an MPU region.
|
||||
*/
|
||||
typedef struct MPURegionSettings
|
||||
{
|
||||
uint32_t ulRBAR; /**< RBAR for the region. */
|
||||
uint32_t ulRLAR; /**< RLAR for the region. */
|
||||
} MPURegionSettings_t;
|
||||
|
||||
/**
|
||||
* @brief MPU settings as stored in the TCB.
|
||||
*/
|
||||
typedef struct MPU_SETTINGS
|
||||
{
|
||||
uint32_t ulMAIR0; /**< MAIR0 for the task containing attributes for all the 4 per task regions. */
|
||||
MPURegionSettings_t xRegionsSettings[ portTOTAL_NUM_REGIONS ]; /**< Settings for 4 per task regions. */
|
||||
} xMPU_SETTINGS;
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief SVC numbers.
|
||||
*/
|
||||
#define portSVC_ALLOCATE_SECURE_CONTEXT 0
|
||||
#define portSVC_FREE_SECURE_CONTEXT 1
|
||||
#define portSVC_START_SCHEDULER 2
|
||||
#define portSVC_RAISE_PRIVILEGE 3
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Scheduler utilities.
|
||||
*/
|
||||
#define portYIELD() vPortYield()
|
||||
#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
|
||||
#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT
|
||||
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Critical section management.
|
||||
*/
|
||||
#define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMask()
|
||||
#define portCLEAR_INTERRUPT_MASK_FROM_ISR( x ) vClearInterruptMask( x )
|
||||
#define portDISABLE_INTERRUPTS() ulSetInterruptMask()
|
||||
#define portENABLE_INTERRUPTS() vClearInterruptMask( 0 )
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Task function macros as described on the FreeRTOS.org WEB site.
|
||||
*/
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
/**
|
||||
* @brief Allocate a secure context for the task.
|
||||
*
|
||||
* Tasks are not created with a secure context. Any task that is going to call
|
||||
* secure functions must call portALLOCATE_SECURE_CONTEXT() to allocate itself a
|
||||
* secure context before it calls any secure function.
|
||||
*
|
||||
* @param[in] ulSecureStackSize The size of the secure stack to be allocated.
|
||||
*/
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize ) vPortAllocateSecureContext( ulSecureStackSize )
|
||||
|
||||
/**
|
||||
* @brief Called when a task is deleted to delete the task's secure context,
|
||||
* if it has one.
|
||||
*
|
||||
* @param[in] pxTCB The TCB of the task being deleted.
|
||||
*/
|
||||
#define portCLEAN_UP_TCB( pxTCB ) vPortFreeSecureContext( ( uint32_t * ) pxTCB )
|
||||
#else
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize )
|
||||
#define portCLEAN_UP_TCB( pxTCB )
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
/**
|
||||
* @brief Checks whether or not the processor is privileged.
|
||||
*
|
||||
* @return 1 if the processor is already privileged, 0 otherwise.
|
||||
*/
|
||||
#define portIS_PRIVILEGED() xIsPrivileged()
|
||||
|
||||
/**
|
||||
* @brief Raise an SVC request to raise privilege.
|
||||
*
|
||||
* The SVC handler checks that the SVC was raised from a system call and only
|
||||
* then it raises the privilege. If this is called from any other place,
|
||||
* the privilege is not raised.
|
||||
*/
|
||||
#define portRAISE_PRIVILEGE() __asm volatile ( "svc %0 \n" :: "i" ( portSVC_RAISE_PRIVILEGE ) : "memory" );
|
||||
|
||||
/**
|
||||
* @brief Lowers the privilege level by setting the bit 0 of the CONTROL
|
||||
* register.
|
||||
*/
|
||||
#define portRESET_PRIVILEGE() vResetPrivilege()
|
||||
#else
|
||||
#define portIS_PRIVILEGED()
|
||||
#define portRAISE_PRIVILEGE()
|
||||
#define portRESET_PRIVILEGE()
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Barriers.
|
||||
*/
|
||||
#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
316
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33_NTZ/portasm.c
Normal file
316
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33_NTZ/portasm.c
Normal file
|
|
@ -0,0 +1,316 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
/* Standard includes. */
|
||||
#include <stdint.h>
|
||||
|
||||
/* Defining MPU_WRAPPERS_INCLUDED_FROM_API_FILE ensures that PRIVILEGED_FUNCTION
|
||||
* is defined correctly and privileged functions are placed in correct sections. */
|
||||
#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
|
||||
|
||||
/* Portasm includes. */
|
||||
#include "portasm.h"
|
||||
|
||||
/* MPU_WRAPPERS_INCLUDED_FROM_API_FILE is needed to be defined only for the
|
||||
* header files. */
|
||||
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
|
||||
|
||||
void vRestoreContextOfFirstTask( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" .syntax unified \n"
|
||||
" \n"
|
||||
" ldr r2, pxCurrentTCBConst2 \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r1, [r2] \n" /* Read pxCurrentTCB. */
|
||||
" ldr r0, [r1] \n" /* Read top of stack from TCB - The first item in pxCurrentTCB is the task top of stack. */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" dmb \n" /* Complete outstanding transfers before disabling MPU. */
|
||||
" ldr r2, xMPUCTRLConst2 \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" bic r4, #1 \n" /* r4 = r4 & ~1 i.e. Clear the bit 0 in r4. */
|
||||
" str r4, [r2] \n" /* Disable MPU. */
|
||||
" \n"
|
||||
" adds r1, #4 \n" /* r1 = r1 + 4. r1 now points to MAIR0 in TCB. */
|
||||
" ldr r3, [r1] \n" /* r3 = *r1 i.e. r3 = MAIR0. */
|
||||
" ldr r2, xMAIR0Const2 \n" /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
" str r3, [r2] \n" /* Program MAIR0. */
|
||||
" ldr r2, xRNRConst2 \n" /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
" movs r3, #4 \n" /* r3 = 4. */
|
||||
" str r3, [r2] \n" /* Program RNR = 4. */
|
||||
" adds r1, #4 \n" /* r1 = r1 + 4. r1 now points to first RBAR in TCB. */
|
||||
" ldr r2, xRBARConst2 \n" /* r2 = 0xe000ed9c [Location of RBAR]. */
|
||||
" ldmia r1!, {r4-r11} \n" /* Read 4 set of RBAR/RLAR registers from TCB. */
|
||||
" stmia r2!, {r4-r11} \n" /* Write 4 set of RBAR/RLAR registers using alias registers. */
|
||||
" \n"
|
||||
" ldr r2, xMPUCTRLConst2 \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" orr r4, #1 \n" /* r4 = r4 | 1 i.e. Set the bit 0 in r4. */
|
||||
" str r4, [r2] \n" /* Enable MPU. */
|
||||
" dsb \n" /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" ldm r0!, {r1-r3} \n" /* Read from stack - r1 = PSPLIM, r2 = CONTROL and r3 = EXC_RETURN. */
|
||||
" msr psplim, r1 \n" /* Set this task's PSPLIM value. */
|
||||
" msr control, r2 \n" /* Set this task's CONTROL value. */
|
||||
" adds r0, #32 \n" /* Discard everything up to r0. */
|
||||
" msr psp, r0 \n" /* This is now the new top of stack to use in the task. */
|
||||
" isb \n"
|
||||
" bx r3 \n" /* Finally, branch to EXC_RETURN. */
|
||||
#else /* configENABLE_MPU */
|
||||
" ldm r0!, {r1-r2} \n" /* Read from stack - r1 = PSPLIM and r2 = EXC_RETURN. */
|
||||
" msr psplim, r1 \n" /* Set this task's PSPLIM value. */
|
||||
" movs r1, #2 \n" /* r1 = 2. */
|
||||
" msr CONTROL, r1 \n" /* Switch to use PSP in the thread mode. */
|
||||
" adds r0, #32 \n" /* Discard everything up to r0. */
|
||||
" msr psp, r0 \n" /* This is now the new top of stack to use in the task. */
|
||||
" isb \n"
|
||||
" bx r2 \n" /* Finally, branch to EXC_RETURN. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"pxCurrentTCBConst2: .word pxCurrentTCB \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
"xMPUCTRLConst2: .word 0xe000ed94 \n"
|
||||
"xMAIR0Const2: .word 0xe000edc0 \n"
|
||||
"xRNRConst2: .word 0xe000ed98 \n"
|
||||
"xRBARConst2: .word 0xe000ed9c \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, control \n" /* r0 = CONTROL. */
|
||||
" tst r0, #1 \n" /* Perform r0 & 1 (bitwise AND) and update the conditions flag. */
|
||||
" ite ne \n"
|
||||
" movne r0, #0 \n" /* CONTROL[0]!=0. Return false to indicate that the processor is not privileged. */
|
||||
" moveq r0, #1 \n" /* CONTROL[0]==0. Return true to indicate that the processor is privileged. */
|
||||
" bx lr \n" /* Return. */
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
::: "r0", "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vRaisePrivilege( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, control \n" /* Read the CONTROL register. */
|
||||
" bic r0, #1 \n" /* Clear the bit 0. */
|
||||
" msr control, r0 \n" /* Write back the new CONTROL value. */
|
||||
" bx lr \n" /* Return to the caller. */
|
||||
::: "r0", "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vResetPrivilege( void ) /* __attribute__ (( naked )) */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, control \n" /* r0 = CONTROL. */
|
||||
" orr r0, #1 \n" /* r0 = r0 | 1. */
|
||||
" msr control, r0 \n" /* CONTROL = r0. */
|
||||
" bx lr \n" /* Return to the caller. */
|
||||
:::"r0", "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vStartFirstTask( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" ldr r0, xVTORConst \n" /* Use the NVIC offset register to locate the stack. */
|
||||
" ldr r0, [r0] \n" /* Read the VTOR register which gives the address of vector table. */
|
||||
" ldr r0, [r0] \n" /* The first entry in vector table is stack pointer. */
|
||||
" msr msp, r0 \n" /* Set the MSP back to the start of the stack. */
|
||||
" cpsie i \n" /* Globally enable interrupts. */
|
||||
" cpsie f \n"
|
||||
" dsb \n"
|
||||
" isb \n"
|
||||
" svc %0 \n" /* System call to start the first task. */
|
||||
" nop \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"xVTORConst: .word 0xe000ed08 \n"
|
||||
:: "i" ( portSVC_START_SCHEDULER ) : "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" mrs r0, basepri \n" /* r0 = basepri. Return original basepri value. */
|
||||
" mov r1, %0 \n" /* r1 = configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
" msr basepri, r1 \n" /* Disable interrupts upto configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
" dsb \n"
|
||||
" isb \n"
|
||||
" bx lr \n" /* Return. */
|
||||
:: "i" ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) : "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vClearInterruptMask( __attribute__( ( unused ) ) uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" msr basepri, r0 \n" /* basepri = ulMask. */
|
||||
" dsb \n"
|
||||
" isb \n"
|
||||
" bx lr \n" /* Return. */
|
||||
::: "memory"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void PendSV_Handler( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" .syntax unified \n"
|
||||
" \n"
|
||||
" mrs r0, psp \n" /* Read PSP in r0. */
|
||||
#if( configENABLE_FPU == 1 )
|
||||
" tst lr, #0x10 \n" /* Test Bit[4] in LR. Bit[4] of EXC_RETURN is 0 if the FPU is in use. */
|
||||
" it eq \n"
|
||||
" vstmdbeq r0!, {s16-s31} \n" /* Store the FPU registers which are not saved automatically. */
|
||||
#endif /* configENABLE_FPU */
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" mrs r1, psplim \n" /* r1 = PSPLIM. */
|
||||
" mrs r2, control \n" /* r2 = CONTROL. */
|
||||
" mov r3, lr \n" /* r3 = LR/EXC_RETURN. */
|
||||
" stmdb r0!, {r1-r11} \n" /* Store on the stack - PSPLIM, CONTROL, LR and registers that are not automatically saved. */
|
||||
#else /* configENABLE_MPU */
|
||||
" mrs r2, psplim \n" /* r2 = PSPLIM. */
|
||||
" mov r3, lr \n" /* r3 = LR/EXC_RETURN. */
|
||||
" stmdb r0!, {r2-r11} \n" /* Store on the stack - PSPLIM, LR and registers that are not automatically saved. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
" ldr r2, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r1, [r2] \n" /* Read pxCurrentTCB. */
|
||||
" str r0, [r1] \n" /* Save the new top of stack in TCB. */
|
||||
" \n"
|
||||
" mov r0, %0 \n" /* r0 = configMAX_SYSCALL_INTERRUPT_PRIORITY */
|
||||
" msr basepri, r0 \n" /* Disable interrupts upto configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
" dsb \n"
|
||||
" isb \n"
|
||||
" bl vTaskSwitchContext \n"
|
||||
" mov r0, #0 \n" /* r0 = 0. */
|
||||
" msr basepri, r0 \n" /* Enable interrupts. */
|
||||
" \n"
|
||||
" ldr r2, pxCurrentTCBConst \n" /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
" ldr r1, [r2] \n" /* Read pxCurrentTCB. */
|
||||
" ldr r0, [r1] \n" /* The first item in pxCurrentTCB is the task top of stack. r0 now points to the top of stack. */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" dmb \n" /* Complete outstanding transfers before disabling MPU. */
|
||||
" ldr r2, xMPUCTRLConst \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" bic r4, #1 \n" /* r4 = r4 & ~1 i.e. Clear the bit 0 in r4. */
|
||||
" str r4, [r2] \n" /* Disable MPU. */
|
||||
" \n"
|
||||
" adds r1, #4 \n" /* r1 = r1 + 4. r1 now points to MAIR0 in TCB. */
|
||||
" ldr r3, [r1] \n" /* r3 = *r1 i.e. r3 = MAIR0. */
|
||||
" ldr r2, xMAIR0Const \n" /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
" str r3, [r2] \n" /* Program MAIR0. */
|
||||
" ldr r2, xRNRConst \n" /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
" movs r3, #4 \n" /* r3 = 4. */
|
||||
" str r3, [r2] \n" /* Program RNR = 4. */
|
||||
" adds r1, #4 \n" /* r1 = r1 + 4. r1 now points to first RBAR in TCB. */
|
||||
" ldr r2, xRBARConst \n" /* r2 = 0xe000ed9c [Location of RBAR]. */
|
||||
" ldmia r1!, {r4-r11} \n" /* Read 4 sets of RBAR/RLAR registers from TCB. */
|
||||
" stmia r2!, {r4-r11} \n" /* Write 4 set of RBAR/RLAR registers using alias registers. */
|
||||
" \n"
|
||||
" ldr r2, xMPUCTRLConst \n" /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
" ldr r4, [r2] \n" /* Read the value of MPU_CTRL. */
|
||||
" orr r4, #1 \n" /* r4 = r4 | 1 i.e. Set the bit 0 in r4. */
|
||||
" str r4, [r2] \n" /* Enable MPU. */
|
||||
" dsb \n" /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" ldmia r0!, {r1-r11} \n" /* Read from stack - r1 = PSPLIM, r2 = CONTROL, r3 = LR and r4-r11 restored. */
|
||||
#else /* configENABLE_MPU */
|
||||
" ldmia r0!, {r2-r11} \n" /* Read from stack - r2 = PSPLIM, r3 = LR and r4-r11 restored. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" \n"
|
||||
#if( configENABLE_FPU == 1 )
|
||||
" tst r3, #0x10 \n" /* Test Bit[4] in LR. Bit[4] of EXC_RETURN is 0 if the FPU is in use. */
|
||||
" it eq \n"
|
||||
" vldmiaeq r0!, {s16-s31} \n" /* Restore the FPU registers which are not restored automatically. */
|
||||
#endif /* configENABLE_FPU */
|
||||
" \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
" msr psplim, r1 \n" /* Restore the PSPLIM register value for the task. */
|
||||
" msr control, r2 \n" /* Restore the CONTROL register value for the task. */
|
||||
#else /* configENABLE_MPU */
|
||||
" msr psplim, r2 \n" /* Restore the PSPLIM register value for the task. */
|
||||
#endif /* configENABLE_MPU */
|
||||
" msr psp, r0 \n" /* Remember the new top of stack for the task. */
|
||||
" bx r3 \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"pxCurrentTCBConst: .word pxCurrentTCB \n"
|
||||
#if( configENABLE_MPU == 1 )
|
||||
"xMPUCTRLConst: .word 0xe000ed94 \n"
|
||||
"xMAIR0Const: .word 0xe000edc0 \n"
|
||||
"xRNRConst: .word 0xe000ed98 \n"
|
||||
"xRBARConst: .word 0xe000ed9c \n"
|
||||
#endif /* configENABLE_MPU */
|
||||
:: "i"( configMAX_SYSCALL_INTERRUPT_PRIORITY )
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void SVC_Handler( void ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */
|
||||
{
|
||||
__asm volatile
|
||||
(
|
||||
" tst lr, #4 \n"
|
||||
" ite eq \n"
|
||||
" mrseq r0, msp \n"
|
||||
" mrsne r0, psp \n"
|
||||
" ldr r1, svchandler_address_const \n"
|
||||
" bx r1 \n"
|
||||
" \n"
|
||||
" .align 4 \n"
|
||||
"svchandler_address_const: .word vPortSVCHandler_C \n"
|
||||
);
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
301
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33_NTZ/portmacro.h
Normal file
301
portable/ARMv8M/non_secure/portable/GCC/ARM_CM33_NTZ/portmacro.h
Normal file
|
|
@ -0,0 +1,301 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*------------------------------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
*
|
||||
* The settings in this file configure FreeRTOS correctly for the given hardware
|
||||
* and compiler.
|
||||
*
|
||||
* These settings should not be altered.
|
||||
*------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef configENABLE_FPU
|
||||
#error configENABLE_FPU must be defined in FreeRTOSConfig.h. Set configENABLE_FPU to 1 to enable the FPU or 0 to disable the FPU.
|
||||
#endif /* configENABLE_FPU */
|
||||
|
||||
#ifndef configENABLE_MPU
|
||||
#error configENABLE_MPU must be defined in FreeRTOSConfig.h. Set configENABLE_MPU to 1 to enable the MPU or 0 to disable the MPU.
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#ifndef configENABLE_TRUSTZONE
|
||||
#error configENABLE_TRUSTZONE must be defined in FreeRTOSConfig.h. Set configENABLE_TRUSTZONE to 1 to enable TrustZone or 0 to disable TrustZone.
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Type definitions.
|
||||
*/
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
* not need to be guarded with a critical section. */
|
||||
#define portTICK_TYPE_IS_ATOMIC 1
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Architecture specifics.
|
||||
*/
|
||||
#define portARCH_NAME "Cortex-M33"
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portNOP()
|
||||
#define portINLINE __inline
|
||||
#ifndef portFORCE_INLINE
|
||||
#define portFORCE_INLINE inline __attribute__(( always_inline ))
|
||||
#endif
|
||||
#define portHAS_STACK_OVERFLOW_CHECKING 1
|
||||
#define portDONT_DISCARD __attribute__(( used ))
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Extern declarations.
|
||||
*/
|
||||
extern BaseType_t xPortIsInsideInterrupt( void );
|
||||
|
||||
extern void vPortYield( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern void vPortEnterCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
extern void vPortExitCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
extern void vClearInterruptMask( uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
extern void vPortAllocateSecureContext( uint32_t ulSecureStackSize ); /* __attribute__ (( naked )) */
|
||||
extern void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */;
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
extern BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */;
|
||||
extern void vResetPrivilege( void ) /* __attribute__ (( naked )) */;
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief MPU specific constants.
|
||||
*/
|
||||
#if( configENABLE_MPU == 1 )
|
||||
#define portUSING_MPU_WRAPPERS 1
|
||||
#define portPRIVILEGE_BIT ( 0x80000000UL )
|
||||
#else
|
||||
#define portPRIVILEGE_BIT ( 0x0UL )
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
|
||||
/* MPU regions. */
|
||||
#define portPRIVILEGED_FLASH_REGION ( 0UL )
|
||||
#define portUNPRIVILEGED_FLASH_REGION ( 1UL )
|
||||
#define portUNPRIVILEGED_SYSCALLS_REGION ( 2UL )
|
||||
#define portPRIVILEGED_RAM_REGION ( 3UL )
|
||||
#define portSTACK_REGION ( 4UL )
|
||||
#define portFIRST_CONFIGURABLE_REGION ( 5UL )
|
||||
#define portLAST_CONFIGURABLE_REGION ( 7UL )
|
||||
#define portNUM_CONFIGURABLE_REGIONS ( ( portLAST_CONFIGURABLE_REGION - portFIRST_CONFIGURABLE_REGION ) + 1 )
|
||||
#define portTOTAL_NUM_REGIONS ( portNUM_CONFIGURABLE_REGIONS + 1 ) /* Plus one to make space for the stack region. */
|
||||
|
||||
/* Device memory attributes used in MPU_MAIR registers.
|
||||
*
|
||||
* 8-bit values encoded as follows:
|
||||
* Bit[7:4] - 0000 - Device Memory
|
||||
* Bit[3:2] - 00 --> Device-nGnRnE
|
||||
* 01 --> Device-nGnRE
|
||||
* 10 --> Device-nGRE
|
||||
* 11 --> Device-GRE
|
||||
* Bit[1:0] - 00, Reserved.
|
||||
*/
|
||||
#define portMPU_DEVICE_MEMORY_nGnRnE ( 0x00 ) /* 0000 0000 */
|
||||
#define portMPU_DEVICE_MEMORY_nGnRE ( 0x04 ) /* 0000 0100 */
|
||||
#define portMPU_DEVICE_MEMORY_nGRE ( 0x08 ) /* 0000 1000 */
|
||||
#define portMPU_DEVICE_MEMORY_GRE ( 0x0C ) /* 0000 1100 */
|
||||
|
||||
/* Normal memory attributes used in MPU_MAIR registers. */
|
||||
#define portMPU_NORMAL_MEMORY_NON_CACHEABLE ( 0x44 ) /* Non-cacheable. */
|
||||
#define portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE ( 0xFF ) /* Non-Transient, Write-back, Read-Allocate and Write-Allocate. */
|
||||
|
||||
/* Attributes used in MPU_RBAR registers. */
|
||||
#define portMPU_REGION_NON_SHAREABLE ( 0UL << 3UL )
|
||||
#define portMPU_REGION_INNER_SHAREABLE ( 1UL << 3UL )
|
||||
#define portMPU_REGION_OUTER_SHAREABLE ( 2UL << 3UL )
|
||||
|
||||
#define portMPU_REGION_PRIVILEGED_READ_WRITE ( 0UL << 1UL )
|
||||
#define portMPU_REGION_READ_WRITE ( 1UL << 1UL )
|
||||
#define portMPU_REGION_PRIVILEGED_READ_ONLY ( 2UL << 1UL )
|
||||
#define portMPU_REGION_READ_ONLY ( 3UL << 1UL )
|
||||
|
||||
#define portMPU_REGION_EXECUTE_NEVER ( 1UL )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Settings to define an MPU region.
|
||||
*/
|
||||
typedef struct MPURegionSettings
|
||||
{
|
||||
uint32_t ulRBAR; /**< RBAR for the region. */
|
||||
uint32_t ulRLAR; /**< RLAR for the region. */
|
||||
} MPURegionSettings_t;
|
||||
|
||||
/**
|
||||
* @brief MPU settings as stored in the TCB.
|
||||
*/
|
||||
typedef struct MPU_SETTINGS
|
||||
{
|
||||
uint32_t ulMAIR0; /**< MAIR0 for the task containing attributes for all the 4 per task regions. */
|
||||
MPURegionSettings_t xRegionsSettings[ portTOTAL_NUM_REGIONS ]; /**< Settings for 4 per task regions. */
|
||||
} xMPU_SETTINGS;
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief SVC numbers.
|
||||
*/
|
||||
#define portSVC_ALLOCATE_SECURE_CONTEXT 0
|
||||
#define portSVC_FREE_SECURE_CONTEXT 1
|
||||
#define portSVC_START_SCHEDULER 2
|
||||
#define portSVC_RAISE_PRIVILEGE 3
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Scheduler utilities.
|
||||
*/
|
||||
#define portYIELD() vPortYield()
|
||||
#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
|
||||
#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT
|
||||
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Critical section management.
|
||||
*/
|
||||
#define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMask()
|
||||
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vClearInterruptMask( x )
|
||||
#define portDISABLE_INTERRUPTS() ulSetInterruptMask()
|
||||
#define portENABLE_INTERRUPTS() vClearInterruptMask( 0 )
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Task function macros as described on the FreeRTOS.org WEB site.
|
||||
*/
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
/**
|
||||
* @brief Allocate a secure context for the task.
|
||||
*
|
||||
* Tasks are not created with a secure context. Any task that is going to call
|
||||
* secure functions must call portALLOCATE_SECURE_CONTEXT() to allocate itself a
|
||||
* secure context before it calls any secure function.
|
||||
*
|
||||
* @param[in] ulSecureStackSize The size of the secure stack to be allocated.
|
||||
*/
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize ) vPortAllocateSecureContext( ulSecureStackSize )
|
||||
|
||||
/**
|
||||
* @brief Called when a task is deleted to delete the task's secure context,
|
||||
* if it has one.
|
||||
*
|
||||
* @param[in] pxTCB The TCB of the task being deleted.
|
||||
*/
|
||||
#define portCLEAN_UP_TCB( pxTCB ) vPortFreeSecureContext( ( uint32_t * ) pxTCB )
|
||||
#else
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize )
|
||||
#define portCLEAN_UP_TCB( pxTCB )
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
/**
|
||||
* @brief Checks whether or not the processor is privileged.
|
||||
*
|
||||
* @return 1 if the processor is already privileged, 0 otherwise.
|
||||
*/
|
||||
#define portIS_PRIVILEGED() xIsPrivileged()
|
||||
|
||||
/**
|
||||
* @brief Raise an SVC request to raise privilege.
|
||||
*
|
||||
* The SVC handler checks that the SVC was raised from a system call and only
|
||||
* then it raises the privilege. If this is called from any other place,
|
||||
* the privilege is not raised.
|
||||
*/
|
||||
#define portRAISE_PRIVILEGE() __asm volatile ( "svc %0 \n" :: "i" ( portSVC_RAISE_PRIVILEGE ) : "memory" );
|
||||
|
||||
/**
|
||||
* @brief Lowers the privilege level by setting the bit 0 of the CONTROL
|
||||
* register.
|
||||
*/
|
||||
#define portRESET_PRIVILEGE() vResetPrivilege()
|
||||
#else
|
||||
#define portIS_PRIVILEGED()
|
||||
#define portRAISE_PRIVILEGE()
|
||||
#define portRESET_PRIVILEGE()
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Barriers.
|
||||
*/
|
||||
#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
377
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23/portasm.s
Normal file
377
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23/portasm.s
Normal file
|
|
@ -0,0 +1,377 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
EXTERN pxCurrentTCB
|
||||
EXTERN xSecureContext
|
||||
EXTERN vTaskSwitchContext
|
||||
EXTERN vPortSVCHandler_C
|
||||
EXTERN SecureContext_SaveContext
|
||||
EXTERN SecureContext_LoadContext
|
||||
|
||||
PUBLIC xIsPrivileged
|
||||
PUBLIC vResetPrivilege
|
||||
PUBLIC vPortAllocateSecureContext
|
||||
PUBLIC vRestoreContextOfFirstTask
|
||||
PUBLIC vRaisePrivilege
|
||||
PUBLIC vStartFirstTask
|
||||
PUBLIC ulSetInterruptMask
|
||||
PUBLIC vClearInterruptMask
|
||||
PUBLIC PendSV_Handler
|
||||
PUBLIC SVC_Handler
|
||||
PUBLIC vPortFreeSecureContext
|
||||
|
||||
#if ( configENABLE_FPU == 1 )
|
||||
#error Cortex-M23 does not have a Floating Point Unit (FPU) and therefore configENABLE_FPU must be set to 0.
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*---------------- Unprivileged Functions -------------------*/
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SECTION .text:CODE:NOROOT(2)
|
||||
THUMB
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
xIsPrivileged:
|
||||
mrs r0, control /* r0 = CONTROL. */
|
||||
movs r1, #1 /* r1 = 1. */
|
||||
tst r0, r1 /* Perform r0 & r1 (bitwise AND) and update the conditions flag. */
|
||||
beq running_privileged /* If the result of previous AND operation was 0, branch. */
|
||||
movs r0, #0 /* CONTROL[0]!=0. Return false to indicate that the processor is not privileged. */
|
||||
bx lr /* Return. */
|
||||
running_privileged:
|
||||
movs r0, #1 /* CONTROL[0]==0. Return true to indicate that the processor is privileged. */
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vResetPrivilege:
|
||||
mrs r0, control /* r0 = CONTROL. */
|
||||
movs r1, #1 /* r1 = 1. */
|
||||
orrs r0, r1 /* r0 = r0 | r1. */
|
||||
msr control, r0 /* CONTROL = r0. */
|
||||
bx lr /* Return to the caller. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vPortAllocateSecureContext:
|
||||
svc 0 /* Secure context is allocated in the supervisor call. portSVC_ALLOCATE_SECURE_CONTEXT = 0. */
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*----------------- Privileged Functions --------------------*/
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SECTION privileged_functions:CODE:NOROOT(2)
|
||||
THUMB
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vRestoreContextOfFirstTask:
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r3, [r2] /* Read pxCurrentTCB. */
|
||||
ldr r0, [r3] /* Read top of stack from TCB - The first item in pxCurrentTCB is the task top of stack. */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
dmb /* Complete outstanding transfers before disabling MPU. */
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
movs r5, #1 /* r5 = 1. */
|
||||
bics r4, r5 /* r4 = r4 & ~r5 i.e. Clear the bit 0 in r4. */
|
||||
str r4, [r2] /* Disable MPU. */
|
||||
|
||||
adds r3, #4 /* r3 = r3 + 4. r3 now points to MAIR0 in TCB. */
|
||||
ldr r4, [r3] /* r4 = *r3 i.e. r4 = MAIR0. */
|
||||
ldr r2, =0xe000edc0 /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
str r4, [r2] /* Program MAIR0. */
|
||||
ldr r2, =0xe000ed98 /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
adds r3, #4 /* r3 = r3 + 4. r3 now points to first RBAR in TCB. */
|
||||
movs r5, #4 /* r5 = 4. */
|
||||
str r5, [r2] /* Program RNR = 4. */
|
||||
ldmia r3!, {r6,r7} /* Read first set of RBAR/RLAR from TCB. */
|
||||
ldr r4, =0xe000ed9c /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r4!, {r6,r7} /* Write first set of RBAR/RLAR registers. */
|
||||
movs r5, #5 /* r5 = 5. */
|
||||
str r5, [r2] /* Program RNR = 5. */
|
||||
ldmia r3!, {r6,r7} /* Read second set of RBAR/RLAR from TCB. */
|
||||
ldr r4, =0xe000ed9c /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r4!, {r6,r7} /* Write second set of RBAR/RLAR registers. */
|
||||
movs r5, #6 /* r5 = 6. */
|
||||
str r5, [r2] /* Program RNR = 6. */
|
||||
ldmia r3!, {r6,r7} /* Read third set of RBAR/RLAR from TCB. */
|
||||
ldr r4, =0xe000ed9c /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r4!, {r6,r7} /* Write third set of RBAR/RLAR registers. */
|
||||
movs r5, #7 /* r5 = 7. */
|
||||
str r5, [r2] /* Program RNR = 7. */
|
||||
ldmia r3!, {r6,r7} /* Read fourth set of RBAR/RLAR from TCB. */
|
||||
ldr r4, =0xe000ed9c /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r4!, {r6,r7} /* Write fourth set of RBAR/RLAR registers. */
|
||||
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
movs r5, #1 /* r5 = 1. */
|
||||
orrs r4, r5 /* r4 = r4 | r5 i.e. Set the bit 0 in r4. */
|
||||
str r4, [r2] /* Enable MPU. */
|
||||
dsb /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
ldm r0!, {r1-r4} /* Read from stack - r1 = xSecureContext, r2 = PSPLIM, r3 = CONTROL and r4 = EXC_RETURN. */
|
||||
ldr r5, =xSecureContext
|
||||
str r1, [r5] /* Set xSecureContext to this task's value for the same. */
|
||||
msr psplim, r2 /* Set this task's PSPLIM value. */
|
||||
msr control, r3 /* Set this task's CONTROL value. */
|
||||
adds r0, #32 /* Discard everything up to r0. */
|
||||
msr psp, r0 /* This is now the new top of stack to use in the task. */
|
||||
isb
|
||||
bx r4 /* Finally, branch to EXC_RETURN. */
|
||||
#else /* configENABLE_MPU */
|
||||
ldm r0!, {r1-r3} /* Read from stack - r1 = xSecureContext, r2 = PSPLIM and r3 = EXC_RETURN. */
|
||||
ldr r4, =xSecureContext
|
||||
str r1, [r4] /* Set xSecureContext to this task's value for the same. */
|
||||
msr psplim, r2 /* Set this task's PSPLIM value. */
|
||||
movs r1, #2 /* r1 = 2. */
|
||||
msr CONTROL, r1 /* Switch to use PSP in the thread mode. */
|
||||
adds r0, #32 /* Discard everything up to r0. */
|
||||
msr psp, r0 /* This is now the new top of stack to use in the task. */
|
||||
isb
|
||||
bx r3 /* Finally, branch to EXC_RETURN. */
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vRaisePrivilege:
|
||||
mrs r0, control /* Read the CONTROL register. */
|
||||
movs r1, #1 /* r1 = 1. */
|
||||
bics r0, r1 /* Clear the bit 0. */
|
||||
msr control, r0 /* Write back the new CONTROL value. */
|
||||
bx lr /* Return to the caller. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vStartFirstTask:
|
||||
ldr r0, =0xe000ed08 /* Use the NVIC offset register to locate the stack. */
|
||||
ldr r0, [r0] /* Read the VTOR register which gives the address of vector table. */
|
||||
ldr r0, [r0] /* The first entry in vector table is stack pointer. */
|
||||
msr msp, r0 /* Set the MSP back to the start of the stack. */
|
||||
cpsie i /* Globally enable interrupts. */
|
||||
dsb
|
||||
isb
|
||||
svc 2 /* System call to start the first task. portSVC_START_SCHEDULER = 2. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
ulSetInterruptMask:
|
||||
mrs r0, PRIMASK
|
||||
cpsid i
|
||||
bx lr
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vClearInterruptMask:
|
||||
msr PRIMASK, r0
|
||||
bx lr
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
PendSV_Handler:
|
||||
mrs r1, psp /* Read PSP in r1. */
|
||||
ldr r2, =xSecureContext /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
ldr r0, [r2] /* Read xSecureContext - Value of xSecureContext must be in r0 as it is used as a parameter later. */
|
||||
|
||||
cbz r0, save_ns_context /* No secure context to save. */
|
||||
push {r0-r2, r14}
|
||||
bl SecureContext_SaveContext
|
||||
pop {r0-r3} /* LR is now in r3. */
|
||||
mov lr, r3 /* LR = r3. */
|
||||
lsls r2, r3, #25 /* r2 = r3 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
bpl save_ns_context /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
ldr r3, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r2, [r3] /* Read pxCurrentTCB. */
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
subs r1, r1, #16 /* Make space for xSecureContext, PSPLIM, CONTROL and LR on the stack. */
|
||||
str r1, [r2] /* Save the new top of stack in TCB. */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mrs r3, control /* r3 = CONTROL. */
|
||||
mov r4, lr /* r4 = LR/EXC_RETURN. */
|
||||
stmia r1!, {r0, r2-r4} /* Store xSecureContext, PSPLIM, CONTROL and LR on the stack. */
|
||||
#else /* configENABLE_MPU */
|
||||
subs r1, r1, #12 /* Make space for xSecureContext, PSPLIM and LR on the stack. */
|
||||
str r1, [r2] /* Save the new top of stack in TCB. */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mov r3, lr /* r3 = LR/EXC_RETURN. */
|
||||
stmia r1!, {r0, r2-r3} /* Store xSecureContext, PSPLIM and LR on the stack. */
|
||||
#endif /* configENABLE_MPU */
|
||||
b select_next_task
|
||||
|
||||
save_ns_context:
|
||||
ldr r3, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r2, [r3] /* Read pxCurrentTCB. */
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
subs r1, r1, #48 /* Make space for xSecureContext, PSPLIM, CONTROL, LR and the remaining registers on the stack. */
|
||||
str r1, [r2] /* Save the new top of stack in TCB. */
|
||||
adds r1, r1, #16 /* r1 = r1 + 16. */
|
||||
stmia r1!, {r4-r7} /* Store the low registers that are not saved automatically. */
|
||||
mov r4, r8 /* r4 = r8. */
|
||||
mov r5, r9 /* r5 = r9. */
|
||||
mov r6, r10 /* r6 = r10. */
|
||||
mov r7, r11 /* r7 = r11. */
|
||||
stmia r1!, {r4-r7} /* Store the high registers that are not saved automatically. */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mrs r3, control /* r3 = CONTROL. */
|
||||
mov r4, lr /* r4 = LR/EXC_RETURN. */
|
||||
subs r1, r1, #48 /* r1 = r1 - 48. */
|
||||
stmia r1!, {r0, r2-r4} /* Store xSecureContext, PSPLIM, CONTROL and LR on the stack. */
|
||||
#else /* configENABLE_MPU */
|
||||
subs r1, r1, #44 /* Make space for xSecureContext, PSPLIM, LR and the remaining registers on the stack. */
|
||||
str r1, [r2] /* Save the new top of stack in TCB. */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mov r3, lr /* r3 = LR/EXC_RETURN. */
|
||||
stmia r1!, {r0, r2-r7} /* Store xSecureContext, PSPLIM, LR and the low registers that are not saved automatically. */
|
||||
mov r4, r8 /* r4 = r8. */
|
||||
mov r5, r9 /* r5 = r9. */
|
||||
mov r6, r10 /* r6 = r10. */
|
||||
mov r7, r11 /* r7 = r11. */
|
||||
stmia r1!, {r4-r7} /* Store the high registers that are not saved automatically. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
select_next_task:
|
||||
cpsid i
|
||||
bl vTaskSwitchContext
|
||||
cpsie i
|
||||
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r3, [r2] /* Read pxCurrentTCB. */
|
||||
ldr r1, [r3] /* The first item in pxCurrentTCB is the task top of stack. r1 now points to the top of stack. */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
dmb /* Complete outstanding transfers before disabling MPU. */
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
movs r5, #1 /* r5 = 1. */
|
||||
bics r4, r5 /* r4 = r4 & ~r5 i.e. Clear the bit 0 in r4. */
|
||||
str r4, [r2] /* Disable MPU. */
|
||||
|
||||
adds r3, #4 /* r3 = r3 + 4. r3 now points to MAIR0 in TCB. */
|
||||
ldr r4, [r3] /* r4 = *r3 i.e. r4 = MAIR0. */
|
||||
ldr r2, =0xe000edc0 /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
str r4, [r2] /* Program MAIR0. */
|
||||
ldr r2, =0xe000ed98 /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
adds r3, #4 /* r3 = r3 + 4. r3 now points to first RBAR in TCB. */
|
||||
movs r5, #4 /* r5 = 4. */
|
||||
str r5, [r2] /* Program RNR = 4. */
|
||||
ldmia r3!, {r6,r7} /* Read first set of RBAR/RLAR from TCB. */
|
||||
ldr r4, =0xe000ed9c /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r4!, {r6,r7} /* Write first set of RBAR/RLAR registers. */
|
||||
movs r5, #5 /* r5 = 5. */
|
||||
str r5, [r2] /* Program RNR = 5. */
|
||||
ldmia r3!, {r6,r7} /* Read second set of RBAR/RLAR from TCB. */
|
||||
ldr r4, =0xe000ed9c /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r4!, {r6,r7} /* Write second set of RBAR/RLAR registers. */
|
||||
movs r5, #6 /* r5 = 6. */
|
||||
str r5, [r2] /* Program RNR = 6. */
|
||||
ldmia r3!, {r6,r7} /* Read third set of RBAR/RLAR from TCB. */
|
||||
ldr r4, =0xe000ed9c /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r4!, {r6,r7} /* Write third set of RBAR/RLAR registers. */
|
||||
movs r5, #7 /* r5 = 7. */
|
||||
str r5, [r2] /* Program RNR = 7. */
|
||||
ldmia r3!, {r6,r7} /* Read fourth set of RBAR/RLAR from TCB. */
|
||||
ldr r4, =0xe000ed9c /* r4 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r4!, {r6,r7} /* Write fourth set of RBAR/RLAR registers. */
|
||||
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
movs r5, #1 /* r5 = 1. */
|
||||
orrs r4, r5 /* r4 = r4 | r5 i.e. Set the bit 0 in r4. */
|
||||
str r4, [r2] /* Enable MPU. */
|
||||
dsb /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
ldmia r1!, {r0, r2-r4} /* Read from stack - r0 = xSecureContext, r2 = PSPLIM, r3 = CONTROL and r4 = LR. */
|
||||
msr psplim, r2 /* Restore the PSPLIM register value for the task. */
|
||||
msr control, r3 /* Restore the CONTROL register value for the task. */
|
||||
mov lr, r4 /* LR = r4. */
|
||||
ldr r2, =xSecureContext /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
str r0, [r2] /* Restore the task's xSecureContext. */
|
||||
cbz r0, restore_ns_context /* If there is no secure context for the task, restore the non-secure context. */
|
||||
push {r1,r4}
|
||||
bl SecureContext_LoadContext /* Restore the secure context. */
|
||||
pop {r1,r4}
|
||||
mov lr, r4 /* LR = r4. */
|
||||
lsls r2, r4, #25 /* r2 = r4 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
bpl restore_ns_context /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
msr psp, r1 /* Remember the new top of stack for the task. */
|
||||
bx lr
|
||||
#else /* configENABLE_MPU */
|
||||
ldmia r1!, {r0, r2-r3} /* Read from stack - r0 = xSecureContext, r2 = PSPLIM and r3 = LR. */
|
||||
msr psplim, r2 /* Restore the PSPLIM register value for the task. */
|
||||
mov lr, r3 /* LR = r3. */
|
||||
ldr r2, =xSecureContext /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
str r0, [r2] /* Restore the task's xSecureContext. */
|
||||
cbz r0, restore_ns_context /* If there is no secure context for the task, restore the non-secure context. */
|
||||
push {r1,r3}
|
||||
bl SecureContext_LoadContext /* Restore the secure context. */
|
||||
pop {r1,r3}
|
||||
mov lr, r3 /* LR = r3. */
|
||||
lsls r2, r3, #25 /* r2 = r3 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
bpl restore_ns_context /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
msr psp, r1 /* Remember the new top of stack for the task. */
|
||||
bx lr
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
restore_ns_context:
|
||||
adds r1, r1, #16 /* Move to the high registers. */
|
||||
ldmia r1!, {r4-r7} /* Restore the high registers that are not automatically restored. */
|
||||
mov r8, r4 /* r8 = r4. */
|
||||
mov r9, r5 /* r9 = r5. */
|
||||
mov r10, r6 /* r10 = r6. */
|
||||
mov r11, r7 /* r11 = r7. */
|
||||
msr psp, r1 /* Remember the new top of stack for the task. */
|
||||
subs r1, r1, #32 /* Go back to the low registers. */
|
||||
ldmia r1!, {r4-r7} /* Restore the low registers that are not automatically restored. */
|
||||
bx lr
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SVC_Handler:
|
||||
movs r0, #4
|
||||
mov r1, lr
|
||||
tst r0, r1
|
||||
beq stacking_used_msp
|
||||
mrs r0, psp
|
||||
b vPortSVCHandler_C
|
||||
stacking_used_msp:
|
||||
mrs r0, msp
|
||||
b vPortSVCHandler_C
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vPortFreeSecureContext:
|
||||
ldr r1, [r0] /* The first item in the TCB is the top of the stack. */
|
||||
ldr r0, [r1] /* The first item on the stack is the task's xSecureContext. */
|
||||
cmp r0, #0 /* Raise svc if task's xSecureContext is not NULL. */
|
||||
beq free_secure_context
|
||||
bx lr /* There is no secure context (xSecureContext is NULL). */
|
||||
free_secure_context:
|
||||
svc 1 /* Secure context is freed in the supervisor call. portSVC_FREE_SECURE_CONTEXT = 1. */
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
END
|
||||
308
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23/portmacro.h
Normal file
308
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23/portmacro.h
Normal file
|
|
@ -0,0 +1,308 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*------------------------------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
*
|
||||
* The settings in this file configure FreeRTOS correctly for the given hardware
|
||||
* and compiler.
|
||||
*
|
||||
* These settings should not be altered.
|
||||
*------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef configENABLE_FPU
|
||||
#error configENABLE_FPU must be defined in FreeRTOSConfig.h. Set configENABLE_FPU to 1 to enable the FPU or 0 to disable the FPU.
|
||||
#endif /* configENABLE_FPU */
|
||||
|
||||
#ifndef configENABLE_MPU
|
||||
#error configENABLE_MPU must be defined in FreeRTOSConfig.h. Set configENABLE_MPU to 1 to enable the MPU or 0 to disable the MPU.
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#ifndef configENABLE_TRUSTZONE
|
||||
#error configENABLE_TRUSTZONE must be defined in FreeRTOSConfig.h. Set configENABLE_TRUSTZONE to 1 to enable TrustZone or 0 to disable TrustZone.
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Type definitions.
|
||||
*/
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
* not need to be guarded with a critical section. */
|
||||
#define portTICK_TYPE_IS_ATOMIC 1
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Architecture specifics.
|
||||
*/
|
||||
#define portARCH_NAME "Cortex-M23"
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portNOP()
|
||||
#define portINLINE __inline
|
||||
#ifndef portFORCE_INLINE
|
||||
#define portFORCE_INLINE inline __attribute__(( always_inline ))
|
||||
#endif
|
||||
#define portHAS_STACK_OVERFLOW_CHECKING 1
|
||||
#define portDONT_DISCARD __root
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Extern declarations.
|
||||
*/
|
||||
extern BaseType_t xPortIsInsideInterrupt( void );
|
||||
|
||||
extern void vPortYield( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern void vPortEnterCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
extern void vPortExitCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
extern void vClearInterruptMask( uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
extern void vPortAllocateSecureContext( uint32_t ulSecureStackSize ); /* __attribute__ (( naked )) */
|
||||
extern void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */;
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
extern BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */;
|
||||
extern void vResetPrivilege( void ) /* __attribute__ (( naked )) */;
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief MPU specific constants.
|
||||
*/
|
||||
#if( configENABLE_MPU == 1 )
|
||||
#define portUSING_MPU_WRAPPERS 1
|
||||
#define portPRIVILEGE_BIT ( 0x80000000UL )
|
||||
#else
|
||||
#define portPRIVILEGE_BIT ( 0x0UL )
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
|
||||
/* MPU regions. */
|
||||
#define portPRIVILEGED_FLASH_REGION ( 0UL )
|
||||
#define portUNPRIVILEGED_FLASH_REGION ( 1UL )
|
||||
#define portUNPRIVILEGED_SYSCALLS_REGION ( 2UL )
|
||||
#define portPRIVILEGED_RAM_REGION ( 3UL )
|
||||
#define portSTACK_REGION ( 4UL )
|
||||
#define portFIRST_CONFIGURABLE_REGION ( 5UL )
|
||||
#define portLAST_CONFIGURABLE_REGION ( 7UL )
|
||||
#define portNUM_CONFIGURABLE_REGIONS ( ( portLAST_CONFIGURABLE_REGION - portFIRST_CONFIGURABLE_REGION ) + 1 )
|
||||
#define portTOTAL_NUM_REGIONS ( portNUM_CONFIGURABLE_REGIONS + 1 ) /* Plus one to make space for the stack region. */
|
||||
|
||||
/* Device memory attributes used in MPU_MAIR registers.
|
||||
*
|
||||
* 8-bit values encoded as follows:
|
||||
* Bit[7:4] - 0000 - Device Memory
|
||||
* Bit[3:2] - 00 --> Device-nGnRnE
|
||||
* 01 --> Device-nGnRE
|
||||
* 10 --> Device-nGRE
|
||||
* 11 --> Device-GRE
|
||||
* Bit[1:0] - 00, Reserved.
|
||||
*/
|
||||
#define portMPU_DEVICE_MEMORY_nGnRnE ( 0x00 ) /* 0000 0000 */
|
||||
#define portMPU_DEVICE_MEMORY_nGnRE ( 0x04 ) /* 0000 0100 */
|
||||
#define portMPU_DEVICE_MEMORY_nGRE ( 0x08 ) /* 0000 1000 */
|
||||
#define portMPU_DEVICE_MEMORY_GRE ( 0x0C ) /* 0000 1100 */
|
||||
|
||||
/* Normal memory attributes used in MPU_MAIR registers. */
|
||||
#define portMPU_NORMAL_MEMORY_NON_CACHEABLE ( 0x44 ) /* Non-cacheable. */
|
||||
#define portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE ( 0xFF ) /* Non-Transient, Write-back, Read-Allocate and Write-Allocate. */
|
||||
|
||||
/* Attributes used in MPU_RBAR registers. */
|
||||
#define portMPU_REGION_NON_SHAREABLE ( 0UL << 3UL )
|
||||
#define portMPU_REGION_INNER_SHAREABLE ( 1UL << 3UL )
|
||||
#define portMPU_REGION_OUTER_SHAREABLE ( 2UL << 3UL )
|
||||
|
||||
#define portMPU_REGION_PRIVILEGED_READ_WRITE ( 0UL << 1UL )
|
||||
#define portMPU_REGION_READ_WRITE ( 1UL << 1UL )
|
||||
#define portMPU_REGION_PRIVILEGED_READ_ONLY ( 2UL << 1UL )
|
||||
#define portMPU_REGION_READ_ONLY ( 3UL << 1UL )
|
||||
|
||||
#define portMPU_REGION_EXECUTE_NEVER ( 1UL )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Settings to define an MPU region.
|
||||
*/
|
||||
typedef struct MPURegionSettings
|
||||
{
|
||||
uint32_t ulRBAR; /**< RBAR for the region. */
|
||||
uint32_t ulRLAR; /**< RLAR for the region. */
|
||||
} MPURegionSettings_t;
|
||||
|
||||
/**
|
||||
* @brief MPU settings as stored in the TCB.
|
||||
*/
|
||||
typedef struct MPU_SETTINGS
|
||||
{
|
||||
uint32_t ulMAIR0; /**< MAIR0 for the task containing attributes for all the 4 per task regions. */
|
||||
MPURegionSettings_t xRegionsSettings[ portTOTAL_NUM_REGIONS ]; /**< Settings for 4 per task regions. */
|
||||
} xMPU_SETTINGS;
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief SVC numbers.
|
||||
*/
|
||||
#define portSVC_ALLOCATE_SECURE_CONTEXT 0
|
||||
#define portSVC_FREE_SECURE_CONTEXT 1
|
||||
#define portSVC_START_SCHEDULER 2
|
||||
#define portSVC_RAISE_PRIVILEGE 3
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Scheduler utilities.
|
||||
*/
|
||||
#define portYIELD() vPortYield()
|
||||
#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
|
||||
#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT
|
||||
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Critical section management.
|
||||
*/
|
||||
#define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMask()
|
||||
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vClearInterruptMask( x )
|
||||
#define portDISABLE_INTERRUPTS() __asm volatile ( " cpsid i " ::: "memory" )
|
||||
#define portENABLE_INTERRUPTS() __asm volatile ( " cpsie i " ::: "memory" )
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Task function macros as described on the FreeRTOS.org WEB site.
|
||||
*/
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
/**
|
||||
* @brief Allocate a secure context for the task.
|
||||
*
|
||||
* Tasks are not created with a secure context. Any task that is going to call
|
||||
* secure functions must call portALLOCATE_SECURE_CONTEXT() to allocate itself a
|
||||
* secure context before it calls any secure function.
|
||||
*
|
||||
* @param[in] ulSecureStackSize The size of the secure stack to be allocated.
|
||||
*/
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize ) vPortAllocateSecureContext( ulSecureStackSize )
|
||||
|
||||
/**
|
||||
* @brief Called when a task is deleted to delete the task's secure context,
|
||||
* if it has one.
|
||||
*
|
||||
* @param[in] pxTCB The TCB of the task being deleted.
|
||||
*/
|
||||
#define portCLEAN_UP_TCB( pxTCB ) vPortFreeSecureContext( ( uint32_t * ) pxTCB )
|
||||
#else
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize )
|
||||
#define portCLEAN_UP_TCB( pxTCB )
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
/**
|
||||
* @brief Checks whether or not the processor is privileged.
|
||||
*
|
||||
* @return 1 if the processor is already privileged, 0 otherwise.
|
||||
*/
|
||||
#define portIS_PRIVILEGED() xIsPrivileged()
|
||||
|
||||
/**
|
||||
* @brief Raise an SVC request to raise privilege.
|
||||
*
|
||||
* The SVC handler checks that the SVC was raised from a system call and only
|
||||
* then it raises the privilege. If this is called from any other place,
|
||||
* the privilege is not raised.
|
||||
*/
|
||||
#define portRAISE_PRIVILEGE() __asm volatile ( "svc %0 \n" :: "i" ( portSVC_RAISE_PRIVILEGE ) : "memory" );
|
||||
|
||||
/**
|
||||
* @brief Lowers the privilege level by setting the bit 0 of the CONTROL
|
||||
* register.
|
||||
*/
|
||||
#define portRESET_PRIVILEGE() vResetPrivilege()
|
||||
#else
|
||||
#define portIS_PRIVILEGED()
|
||||
#define portRAISE_PRIVILEGE()
|
||||
#define portRESET_PRIVILEGE()
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Barriers.
|
||||
*/
|
||||
#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Suppress warnings that are generated by the IAR tools, but cannot be fixed in
|
||||
* the source code because to do so would cause other compilers to generate
|
||||
* warnings. */
|
||||
#pragma diag_suppress=Be006
|
||||
#pragma diag_suppress=Pa082
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
303
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23_NTZ/portasm.s
Normal file
303
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23_NTZ/portasm.s
Normal file
|
|
@ -0,0 +1,303 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
EXTERN pxCurrentTCB
|
||||
EXTERN vTaskSwitchContext
|
||||
EXTERN vPortSVCHandler_C
|
||||
|
||||
PUBLIC xIsPrivileged
|
||||
PUBLIC vResetPrivilege
|
||||
PUBLIC vRestoreContextOfFirstTask
|
||||
PUBLIC vRaisePrivilege
|
||||
PUBLIC vStartFirstTask
|
||||
PUBLIC ulSetInterruptMask
|
||||
PUBLIC vClearInterruptMask
|
||||
PUBLIC PendSV_Handler
|
||||
PUBLIC SVC_Handler
|
||||
|
||||
#if ( configENABLE_FPU == 1 )
|
||||
#error Cortex-M23 does not have a Floating Point Unit (FPU) and therefore configENABLE_FPU must be set to 0.
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*---------------- Unprivileged Functions -------------------*/
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SECTION .text:CODE:NOROOT(2)
|
||||
THUMB
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
xIsPrivileged:
|
||||
mrs r0, control /* r0 = CONTROL. */
|
||||
movs r1, #1 /* r1 = 1. */
|
||||
tst r0, r1 /* Perform r0 & r1 (bitwise AND) and update the conditions flag. */
|
||||
beq running_privileged /* If the result of previous AND operation was 0, branch. */
|
||||
movs r0, #0 /* CONTROL[0]!=0. Return false to indicate that the processor is not privileged. */
|
||||
bx lr /* Return. */
|
||||
running_privileged:
|
||||
movs r0, #1 /* CONTROL[0]==0. Return true to indicate that the processor is privileged. */
|
||||
bx lr /* Return. */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vResetPrivilege:
|
||||
mrs r0, control /* r0 = CONTROL. */
|
||||
movs r1, #1 /* r1 = 1. */
|
||||
orrs r0, r1 /* r0 = r0 | r1. */
|
||||
msr control, r0 /* CONTROL = r0. */
|
||||
bx lr /* Return to the caller. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*----------------- Privileged Functions --------------------*/
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SECTION privileged_functions:CODE:NOROOT(2)
|
||||
THUMB
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vRestoreContextOfFirstTask:
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r1, [r2] /* Read pxCurrentTCB. */
|
||||
ldr r0, [r1] /* Read top of stack from TCB - The first item in pxCurrentTCB is the task top of stack. */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
dmb /* Complete outstanding transfers before disabling MPU. */
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r3, [r2] /* Read the value of MPU_CTRL. */
|
||||
movs r4, #1 /* r4 = 1. */
|
||||
bics r3, r4 /* r3 = r3 & ~r4 i.e. Clear the bit 0 in r3. */
|
||||
str r3, [r2] /* Disable MPU. */
|
||||
|
||||
adds r1, #4 /* r1 = r1 + 4. r1 now points to MAIR0 in TCB. */
|
||||
ldr r4, [r1] /* r4 = *r1 i.e. r4 = MAIR0. */
|
||||
ldr r2, =0xe000edc0 /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
str r4, [r2] /* Program MAIR0. */
|
||||
ldr r2, =0xe000ed98 /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
adds r1, #4 /* r1 = r1 + 4. r1 now points to first RBAR in TCB. */
|
||||
movs r4, #4 /* r4 = 4. */
|
||||
str r4, [r2] /* Program RNR = 4. */
|
||||
ldmia r1!, {r5,r6} /* Read first set of RBAR/RLAR from TCB. */
|
||||
ldr r3, =0xe000ed9c /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r3!, {r5,r6} /* Write first set of RBAR/RLAR registers. */
|
||||
movs r4, #5 /* r4 = 5. */
|
||||
str r4, [r2] /* Program RNR = 5. */
|
||||
ldmia r1!, {r5,r6} /* Read second set of RBAR/RLAR from TCB. */
|
||||
ldr r3, =0xe000ed9c /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r3!, {r5,r6} /* Write second set of RBAR/RLAR registers. */
|
||||
movs r4, #6 /* r4 = 6. */
|
||||
str r4, [r2] /* Program RNR = 6. */
|
||||
ldmia r1!, {r5,r6} /* Read third set of RBAR/RLAR from TCB. */
|
||||
ldr r3, =0xe000ed9c /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r3!, {r5,r6} /* Write third set of RBAR/RLAR registers. */
|
||||
movs r4, #7 /* r4 = 7. */
|
||||
str r4, [r2] /* Program RNR = 7. */
|
||||
ldmia r1!, {r5,r6} /* Read fourth set of RBAR/RLAR from TCB. */
|
||||
ldr r3, =0xe000ed9c /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r3!, {r5,r6} /* Write fourth set of RBAR/RLAR registers. */
|
||||
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r3, [r2] /* Read the value of MPU_CTRL. */
|
||||
movs r4, #1 /* r4 = 1. */
|
||||
orrs r3, r4 /* r3 = r3 | r4 i.e. Set the bit 0 in r3. */
|
||||
str r3, [r2] /* Enable MPU. */
|
||||
dsb /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
ldm r0!, {r1-r3} /* Read from stack - r1 = PSPLIM, r2 = CONTROL and r3 = EXC_RETURN. */
|
||||
msr psplim, r1 /* Set this task's PSPLIM value. */
|
||||
msr control, r2 /* Set this task's CONTROL value. */
|
||||
adds r0, #32 /* Discard everything up to r0. */
|
||||
msr psp, r0 /* This is now the new top of stack to use in the task. */
|
||||
isb
|
||||
bx r3 /* Finally, branch to EXC_RETURN. */
|
||||
#else /* configENABLE_MPU */
|
||||
ldm r0!, {r1-r2} /* Read from stack - r1 = PSPLIM and r2 = EXC_RETURN. */
|
||||
msr psplim, r1 /* Set this task's PSPLIM value. */
|
||||
movs r1, #2 /* r1 = 2. */
|
||||
msr CONTROL, r1 /* Switch to use PSP in the thread mode. */
|
||||
adds r0, #32 /* Discard everything up to r0. */
|
||||
msr psp, r0 /* This is now the new top of stack to use in the task. */
|
||||
isb
|
||||
bx r2 /* Finally, branch to EXC_RETURN. */
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vRaisePrivilege:
|
||||
mrs r0, control /* Read the CONTROL register. */
|
||||
movs r1, #1 /* r1 = 1. */
|
||||
bics r0, r1 /* Clear the bit 0. */
|
||||
msr control, r0 /* Write back the new CONTROL value. */
|
||||
bx lr /* Return to the caller. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vStartFirstTask:
|
||||
ldr r0, =0xe000ed08 /* Use the NVIC offset register to locate the stack. */
|
||||
ldr r0, [r0] /* Read the VTOR register which gives the address of vector table. */
|
||||
ldr r0, [r0] /* The first entry in vector table is stack pointer. */
|
||||
msr msp, r0 /* Set the MSP back to the start of the stack. */
|
||||
cpsie i /* Globally enable interrupts. */
|
||||
dsb
|
||||
isb
|
||||
svc 2 /* System call to start the first task. portSVC_START_SCHEDULER = 2. */
|
||||
nop
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
ulSetInterruptMask:
|
||||
mrs r0, PRIMASK
|
||||
cpsid i
|
||||
bx lr
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vClearInterruptMask:
|
||||
msr PRIMASK, r0
|
||||
bx lr
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
PendSV_Handler:
|
||||
mrs r0, psp /* Read PSP in r0. */
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r1, [r2] /* Read pxCurrentTCB. */
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
subs r0, r0, #44 /* Make space for PSPLIM, CONTROL, LR and the remaining registers on the stack. */
|
||||
str r0, [r1] /* Save the new top of stack in TCB. */
|
||||
mrs r1, psplim /* r1 = PSPLIM. */
|
||||
mrs r2, control /* r2 = CONTROL. */
|
||||
mov r3, lr /* r3 = LR/EXC_RETURN. */
|
||||
stmia r0!, {r1-r7} /* Store on the stack - PSPLIM, CONTROL, LR and low registers that are not automatically saved. */
|
||||
mov r4, r8 /* r4 = r8. */
|
||||
mov r5, r9 /* r5 = r9. */
|
||||
mov r6, r10 /* r6 = r10. */
|
||||
mov r7, r11 /* r7 = r11. */
|
||||
stmia r0!, {r4-r7} /* Store the high registers that are not saved automatically. */
|
||||
#else /* configENABLE_MPU */
|
||||
subs r0, r0, #40 /* Make space for PSPLIM, LR and the remaining registers on the stack. */
|
||||
str r0, [r1] /* Save the new top of stack in TCB. */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mov r3, lr /* r3 = LR/EXC_RETURN. */
|
||||
stmia r0!, {r2-r7} /* Store on the stack - PSPLIM, LR and low registers that are not automatically saved. */
|
||||
mov r4, r8 /* r4 = r8. */
|
||||
mov r5, r9 /* r5 = r9. */
|
||||
mov r6, r10 /* r6 = r10. */
|
||||
mov r7, r11 /* r7 = r11. */
|
||||
stmia r0!, {r4-r7} /* Store the high registers that are not saved automatically. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
cpsid i
|
||||
bl vTaskSwitchContext
|
||||
cpsie i
|
||||
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r1, [r2] /* Read pxCurrentTCB. */
|
||||
ldr r0, [r1] /* The first item in pxCurrentTCB is the task top of stack. r0 now points to the top of stack. */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
dmb /* Complete outstanding transfers before disabling MPU. */
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r3, [r2] /* Read the value of MPU_CTRL. */
|
||||
movs r4, #1 /* r4 = 1. */
|
||||
bics r3, r4 /* r3 = r3 & ~r4 i.e. Clear the bit 0 in r3. */
|
||||
str r3, [r2] /* Disable MPU. */
|
||||
|
||||
adds r1, #4 /* r1 = r1 + 4. r1 now points to MAIR0 in TCB. */
|
||||
ldr r4, [r1] /* r4 = *r1 i.e. r4 = MAIR0. */
|
||||
ldr r2, =0xe000edc0 /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
str r4, [r2] /* Program MAIR0. */
|
||||
ldr r2, =0xe000ed98 /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
adds r1, #4 /* r1 = r1 + 4. r1 now points to first RBAR in TCB. */
|
||||
movs r4, #4 /* r4 = 4. */
|
||||
str r4, [r2] /* Program RNR = 4. */
|
||||
ldmia r1!, {r5,r6} /* Read first set of RBAR/RLAR from TCB. */
|
||||
ldr r3, =0xe000ed9c /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r3!, {r5,r6} /* Write first set of RBAR/RLAR registers. */
|
||||
movs r4, #5 /* r4 = 5. */
|
||||
str r4, [r2] /* Program RNR = 5. */
|
||||
ldmia r1!, {r5,r6} /* Read second set of RBAR/RLAR from TCB. */
|
||||
ldr r3, =0xe000ed9c /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r3!, {r5,r6} /* Write second set of RBAR/RLAR registers. */
|
||||
movs r4, #6 /* r4 = 6. */
|
||||
str r4, [r2] /* Program RNR = 6. */
|
||||
ldmia r1!, {r5,r6} /* Read third set of RBAR/RLAR from TCB. */
|
||||
ldr r3, =0xe000ed9c /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r3!, {r5,r6} /* Write third set of RBAR/RLAR registers. */
|
||||
movs r4, #7 /* r4 = 7. */
|
||||
str r4, [r2] /* Program RNR = 7. */
|
||||
ldmia r1!, {r5,r6} /* Read fourth set of RBAR/RLAR from TCB. */
|
||||
ldr r3, =0xe000ed9c /* r3 = 0xe000ed9c [Location of RBAR]. */
|
||||
stmia r3!, {r5,r6} /* Write fourth set of RBAR/RLAR registers. */
|
||||
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r3, [r2] /* Read the value of MPU_CTRL. */
|
||||
movs r4, #1 /* r4 = 1. */
|
||||
orrs r3, r4 /* r3 = r3 | r4 i.e. Set the bit 0 in r3. */
|
||||
str r3, [r2] /* Enable MPU. */
|
||||
dsb /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
adds r0, r0, #28 /* Move to the high registers. */
|
||||
ldmia r0!, {r4-r7} /* Restore the high registers that are not automatically restored. */
|
||||
mov r8, r4 /* r8 = r4. */
|
||||
mov r9, r5 /* r9 = r5. */
|
||||
mov r10, r6 /* r10 = r6. */
|
||||
mov r11, r7 /* r11 = r7. */
|
||||
msr psp, r0 /* Remember the new top of stack for the task. */
|
||||
subs r0, r0, #44 /* Move to the starting of the saved context. */
|
||||
ldmia r0!, {r1-r7} /* Read from stack - r1 = PSPLIM, r2 = CONTROL, r3 = LR and r4-r7 restored. */
|
||||
msr psplim, r1 /* Restore the PSPLIM register value for the task. */
|
||||
msr control, r2 /* Restore the CONTROL register value for the task. */
|
||||
bx r3
|
||||
#else /* configENABLE_MPU */
|
||||
adds r0, r0, #24 /* Move to the high registers. */
|
||||
ldmia r0!, {r4-r7} /* Restore the high registers that are not automatically restored. */
|
||||
mov r8, r4 /* r8 = r4. */
|
||||
mov r9, r5 /* r9 = r5. */
|
||||
mov r10, r6 /* r10 = r6. */
|
||||
mov r11, r7 /* r11 = r7. */
|
||||
msr psp, r0 /* Remember the new top of stack for the task. */
|
||||
subs r0, r0, #40 /* Move to the starting of the saved context. */
|
||||
ldmia r0!, {r2-r7} /* Read from stack - r2 = PSPLIM, r3 = LR and r4-r7 restored. */
|
||||
msr psplim, r2 /* Restore the PSPLIM register value for the task. */
|
||||
bx r3
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SVC_Handler:
|
||||
movs r0, #4
|
||||
mov r1, lr
|
||||
tst r0, r1
|
||||
beq stacking_used_msp
|
||||
mrs r0, psp
|
||||
b vPortSVCHandler_C
|
||||
stacking_used_msp:
|
||||
mrs r0, msp
|
||||
b vPortSVCHandler_C
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
END
|
||||
308
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23_NTZ/portmacro.h
Normal file
308
portable/ARMv8M/non_secure/portable/IAR/ARM_CM23_NTZ/portmacro.h
Normal file
|
|
@ -0,0 +1,308 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*------------------------------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
*
|
||||
* The settings in this file configure FreeRTOS correctly for the given hardware
|
||||
* and compiler.
|
||||
*
|
||||
* These settings should not be altered.
|
||||
*------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef configENABLE_FPU
|
||||
#error configENABLE_FPU must be defined in FreeRTOSConfig.h. Set configENABLE_FPU to 1 to enable the FPU or 0 to disable the FPU.
|
||||
#endif /* configENABLE_FPU */
|
||||
|
||||
#ifndef configENABLE_MPU
|
||||
#error configENABLE_MPU must be defined in FreeRTOSConfig.h. Set configENABLE_MPU to 1 to enable the MPU or 0 to disable the MPU.
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#ifndef configENABLE_TRUSTZONE
|
||||
#error configENABLE_TRUSTZONE must be defined in FreeRTOSConfig.h. Set configENABLE_TRUSTZONE to 1 to enable TrustZone or 0 to disable TrustZone.
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Type definitions.
|
||||
*/
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
* not need to be guarded with a critical section. */
|
||||
#define portTICK_TYPE_IS_ATOMIC 1
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Architecture specifics.
|
||||
*/
|
||||
#define portARCH_NAME "Cortex-M23"
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portNOP()
|
||||
#define portINLINE __inline
|
||||
#ifndef portFORCE_INLINE
|
||||
#define portFORCE_INLINE inline __attribute__(( always_inline ))
|
||||
#endif
|
||||
#define portHAS_STACK_OVERFLOW_CHECKING 1
|
||||
#define portDONT_DISCARD __root
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Extern declarations.
|
||||
*/
|
||||
extern BaseType_t xPortIsInsideInterrupt( void );
|
||||
|
||||
extern void vPortYield( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern void vPortEnterCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
extern void vPortExitCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
extern void vClearInterruptMask( uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
extern void vPortAllocateSecureContext( uint32_t ulSecureStackSize ); /* __attribute__ (( naked )) */
|
||||
extern void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */;
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
extern BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */;
|
||||
extern void vResetPrivilege( void ) /* __attribute__ (( naked )) */;
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief MPU specific constants.
|
||||
*/
|
||||
#if( configENABLE_MPU == 1 )
|
||||
#define portUSING_MPU_WRAPPERS 1
|
||||
#define portPRIVILEGE_BIT ( 0x80000000UL )
|
||||
#else
|
||||
#define portPRIVILEGE_BIT ( 0x0UL )
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
|
||||
/* MPU regions. */
|
||||
#define portPRIVILEGED_FLASH_REGION ( 0UL )
|
||||
#define portUNPRIVILEGED_FLASH_REGION ( 1UL )
|
||||
#define portUNPRIVILEGED_SYSCALLS_REGION ( 2UL )
|
||||
#define portPRIVILEGED_RAM_REGION ( 3UL )
|
||||
#define portSTACK_REGION ( 4UL )
|
||||
#define portFIRST_CONFIGURABLE_REGION ( 5UL )
|
||||
#define portLAST_CONFIGURABLE_REGION ( 7UL )
|
||||
#define portNUM_CONFIGURABLE_REGIONS ( ( portLAST_CONFIGURABLE_REGION - portFIRST_CONFIGURABLE_REGION ) + 1 )
|
||||
#define portTOTAL_NUM_REGIONS ( portNUM_CONFIGURABLE_REGIONS + 1 ) /* Plus one to make space for the stack region. */
|
||||
|
||||
/* Device memory attributes used in MPU_MAIR registers.
|
||||
*
|
||||
* 8-bit values encoded as follows:
|
||||
* Bit[7:4] - 0000 - Device Memory
|
||||
* Bit[3:2] - 00 --> Device-nGnRnE
|
||||
* 01 --> Device-nGnRE
|
||||
* 10 --> Device-nGRE
|
||||
* 11 --> Device-GRE
|
||||
* Bit[1:0] - 00, Reserved.
|
||||
*/
|
||||
#define portMPU_DEVICE_MEMORY_nGnRnE ( 0x00 ) /* 0000 0000 */
|
||||
#define portMPU_DEVICE_MEMORY_nGnRE ( 0x04 ) /* 0000 0100 */
|
||||
#define portMPU_DEVICE_MEMORY_nGRE ( 0x08 ) /* 0000 1000 */
|
||||
#define portMPU_DEVICE_MEMORY_GRE ( 0x0C ) /* 0000 1100 */
|
||||
|
||||
/* Normal memory attributes used in MPU_MAIR registers. */
|
||||
#define portMPU_NORMAL_MEMORY_NON_CACHEABLE ( 0x44 ) /* Non-cacheable. */
|
||||
#define portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE ( 0xFF ) /* Non-Transient, Write-back, Read-Allocate and Write-Allocate. */
|
||||
|
||||
/* Attributes used in MPU_RBAR registers. */
|
||||
#define portMPU_REGION_NON_SHAREABLE ( 0UL << 3UL )
|
||||
#define portMPU_REGION_INNER_SHAREABLE ( 1UL << 3UL )
|
||||
#define portMPU_REGION_OUTER_SHAREABLE ( 2UL << 3UL )
|
||||
|
||||
#define portMPU_REGION_PRIVILEGED_READ_WRITE ( 0UL << 1UL )
|
||||
#define portMPU_REGION_READ_WRITE ( 1UL << 1UL )
|
||||
#define portMPU_REGION_PRIVILEGED_READ_ONLY ( 2UL << 1UL )
|
||||
#define portMPU_REGION_READ_ONLY ( 3UL << 1UL )
|
||||
|
||||
#define portMPU_REGION_EXECUTE_NEVER ( 1UL )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Settings to define an MPU region.
|
||||
*/
|
||||
typedef struct MPURegionSettings
|
||||
{
|
||||
uint32_t ulRBAR; /**< RBAR for the region. */
|
||||
uint32_t ulRLAR; /**< RLAR for the region. */
|
||||
} MPURegionSettings_t;
|
||||
|
||||
/**
|
||||
* @brief MPU settings as stored in the TCB.
|
||||
*/
|
||||
typedef struct MPU_SETTINGS
|
||||
{
|
||||
uint32_t ulMAIR0; /**< MAIR0 for the task containing attributes for all the 4 per task regions. */
|
||||
MPURegionSettings_t xRegionsSettings[ portTOTAL_NUM_REGIONS ]; /**< Settings for 4 per task regions. */
|
||||
} xMPU_SETTINGS;
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief SVC numbers.
|
||||
*/
|
||||
#define portSVC_ALLOCATE_SECURE_CONTEXT 0
|
||||
#define portSVC_FREE_SECURE_CONTEXT 1
|
||||
#define portSVC_START_SCHEDULER 2
|
||||
#define portSVC_RAISE_PRIVILEGE 3
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Scheduler utilities.
|
||||
*/
|
||||
#define portYIELD() vPortYield()
|
||||
#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
|
||||
#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT
|
||||
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Critical section management.
|
||||
*/
|
||||
#define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMask()
|
||||
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vClearInterruptMask( x )
|
||||
#define portDISABLE_INTERRUPTS() __asm volatile ( " cpsid i " ::: "memory" )
|
||||
#define portENABLE_INTERRUPTS() __asm volatile ( " cpsie i " ::: "memory" )
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Task function macros as described on the FreeRTOS.org WEB site.
|
||||
*/
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
/**
|
||||
* @brief Allocate a secure context for the task.
|
||||
*
|
||||
* Tasks are not created with a secure context. Any task that is going to call
|
||||
* secure functions must call portALLOCATE_SECURE_CONTEXT() to allocate itself a
|
||||
* secure context before it calls any secure function.
|
||||
*
|
||||
* @param[in] ulSecureStackSize The size of the secure stack to be allocated.
|
||||
*/
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize ) vPortAllocateSecureContext( ulSecureStackSize )
|
||||
|
||||
/**
|
||||
* @brief Called when a task is deleted to delete the task's secure context,
|
||||
* if it has one.
|
||||
*
|
||||
* @param[in] pxTCB The TCB of the task being deleted.
|
||||
*/
|
||||
#define portCLEAN_UP_TCB( pxTCB ) vPortFreeSecureContext( ( uint32_t * ) pxTCB )
|
||||
#else
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize )
|
||||
#define portCLEAN_UP_TCB( pxTCB )
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
/**
|
||||
* @brief Checks whether or not the processor is privileged.
|
||||
*
|
||||
* @return 1 if the processor is already privileged, 0 otherwise.
|
||||
*/
|
||||
#define portIS_PRIVILEGED() xIsPrivileged()
|
||||
|
||||
/**
|
||||
* @brief Raise an SVC request to raise privilege.
|
||||
*
|
||||
* The SVC handler checks that the SVC was raised from a system call and only
|
||||
* then it raises the privilege. If this is called from any other place,
|
||||
* the privilege is not raised.
|
||||
*/
|
||||
#define portRAISE_PRIVILEGE() __asm volatile ( "svc %0 \n" :: "i" ( portSVC_RAISE_PRIVILEGE ) : "memory" );
|
||||
|
||||
/**
|
||||
* @brief Lowers the privilege level by setting the bit 0 of the CONTROL
|
||||
* register.
|
||||
*/
|
||||
#define portRESET_PRIVILEGE() vResetPrivilege()
|
||||
#else
|
||||
#define portIS_PRIVILEGED()
|
||||
#define portRAISE_PRIVILEGE()
|
||||
#define portRESET_PRIVILEGE()
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Barriers.
|
||||
*/
|
||||
#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Suppress warnings that are generated by the IAR tools, but cannot be fixed in
|
||||
* the source code because to do so would cause other compilers to generate
|
||||
* warnings. */
|
||||
#pragma diag_suppress=Be006
|
||||
#pragma diag_suppress=Pa082
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
341
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33/portasm.s
Normal file
341
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33/portasm.s
Normal file
|
|
@ -0,0 +1,341 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
/* Including FreeRTOSConfig.h here will cause build errors if the header file
|
||||
contains code not understood by the assembler - for example the 'extern' keyword.
|
||||
To avoid errors place any such code inside a #ifdef __ICCARM__/#endif block so
|
||||
the code is included in C files but excluded by the preprocessor in assembly
|
||||
files (__ICCARM__ is defined by the IAR C compiler but not by the IAR assembler. */
|
||||
#include "FreeRTOSConfig.h"
|
||||
|
||||
EXTERN pxCurrentTCB
|
||||
EXTERN xSecureContext
|
||||
EXTERN vTaskSwitchContext
|
||||
EXTERN vPortSVCHandler_C
|
||||
EXTERN SecureContext_SaveContext
|
||||
EXTERN SecureContext_LoadContext
|
||||
|
||||
PUBLIC xIsPrivileged
|
||||
PUBLIC vResetPrivilege
|
||||
PUBLIC vPortAllocateSecureContext
|
||||
PUBLIC vRestoreContextOfFirstTask
|
||||
PUBLIC vRaisePrivilege
|
||||
PUBLIC vStartFirstTask
|
||||
PUBLIC ulSetInterruptMask
|
||||
PUBLIC vClearInterruptMask
|
||||
PUBLIC PendSV_Handler
|
||||
PUBLIC SVC_Handler
|
||||
PUBLIC vPortFreeSecureContext
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*---------------- Unprivileged Functions -------------------*/
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SECTION .text:CODE:NOROOT(2)
|
||||
THUMB
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
xIsPrivileged:
|
||||
mrs r0, control /* r0 = CONTROL. */
|
||||
tst r0, #1 /* Perform r0 & 1 (bitwise AND) and update the conditions flag. */
|
||||
ite ne
|
||||
movne r0, #0 /* CONTROL[0]!=0. Return false to indicate that the processor is not privileged. */
|
||||
moveq r0, #1 /* CONTROL[0]==0. Return true to indicate that the processor is not privileged. */
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vResetPrivilege:
|
||||
mrs r0, control /* r0 = CONTROL. */
|
||||
orr r0, r0, #1 /* r0 = r0 | 1. */
|
||||
msr control, r0 /* CONTROL = r0. */
|
||||
bx lr /* Return to the caller. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vPortAllocateSecureContext:
|
||||
svc 0 /* Secure context is allocated in the supervisor call. portSVC_ALLOCATE_SECURE_CONTEXT = 0. */
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*----------------- Privileged Functions --------------------*/
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SECTION privileged_functions:CODE:NOROOT(2)
|
||||
THUMB
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vRestoreContextOfFirstTask:
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r3, [r2] /* Read pxCurrentTCB. */
|
||||
ldr r0, [r3] /* Read top of stack from TCB - The first item in pxCurrentTCB is the task top of stack. */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
dmb /* Complete outstanding transfers before disabling MPU. */
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
bic r4, r4, #1 /* r4 = r4 & ~1 i.e. Clear the bit 0 in r4. */
|
||||
str r4, [r2] /* Disable MPU. */
|
||||
|
||||
adds r3, #4 /* r3 = r3 + 4. r3 now points to MAIR0 in TCB. */
|
||||
ldr r4, [r3] /* r4 = *r3 i.e. r4 = MAIR0. */
|
||||
ldr r2, =0xe000edc0 /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
str r4, [r2] /* Program MAIR0. */
|
||||
ldr r2, =0xe000ed98 /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
movs r4, #4 /* r4 = 4. */
|
||||
str r4, [r2] /* Program RNR = 4. */
|
||||
adds r3, #4 /* r3 = r3 + 4. r3 now points to first RBAR in TCB. */
|
||||
ldr r2, =0xe000ed9c /* r2 = 0xe000ed9c [Location of RBAR]. */
|
||||
ldmia r3!, {r4-r11} /* Read 4 set of RBAR/RLAR registers from TCB. */
|
||||
stmia r2!, {r4-r11} /* Write 4 set of RBAR/RLAR registers using alias registers. */
|
||||
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
orr r4, r4, #1 /* r4 = r4 | 1 i.e. Set the bit 0 in r4. */
|
||||
str r4, [r2] /* Enable MPU. */
|
||||
dsb /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
ldm r0!, {r1-r4} /* Read from stack - r1 = xSecureContext, r2 = PSPLIM, r3 = CONTROL and r4 = EXC_RETURN. */
|
||||
ldr r5, =xSecureContext
|
||||
str r1, [r5] /* Set xSecureContext to this task's value for the same. */
|
||||
msr psplim, r2 /* Set this task's PSPLIM value. */
|
||||
msr control, r3 /* Set this task's CONTROL value. */
|
||||
adds r0, #32 /* Discard everything up to r0. */
|
||||
msr psp, r0 /* This is now the new top of stack to use in the task. */
|
||||
isb
|
||||
bx r4 /* Finally, branch to EXC_RETURN. */
|
||||
#else /* configENABLE_MPU */
|
||||
ldm r0!, {r1-r3} /* Read from stack - r1 = xSecureContext, r2 = PSPLIM and r3 = EXC_RETURN. */
|
||||
ldr r4, =xSecureContext
|
||||
str r1, [r4] /* Set xSecureContext to this task's value for the same. */
|
||||
msr psplim, r2 /* Set this task's PSPLIM value. */
|
||||
movs r1, #2 /* r1 = 2. */
|
||||
msr CONTROL, r1 /* Switch to use PSP in the thread mode. */
|
||||
adds r0, #32 /* Discard everything up to r0. */
|
||||
msr psp, r0 /* This is now the new top of stack to use in the task. */
|
||||
isb
|
||||
bx r3 /* Finally, branch to EXC_RETURN. */
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vRaisePrivilege:
|
||||
mrs r0, control /* Read the CONTROL register. */
|
||||
bic r0, r0, #1 /* Clear the bit 0. */
|
||||
msr control, r0 /* Write back the new CONTROL value. */
|
||||
bx lr /* Return to the caller. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vStartFirstTask:
|
||||
ldr r0, =0xe000ed08 /* Use the NVIC offset register to locate the stack. */
|
||||
ldr r0, [r0] /* Read the VTOR register which gives the address of vector table. */
|
||||
ldr r0, [r0] /* The first entry in vector table is stack pointer. */
|
||||
msr msp, r0 /* Set the MSP back to the start of the stack. */
|
||||
cpsie i /* Globally enable interrupts. */
|
||||
cpsie f
|
||||
dsb
|
||||
isb
|
||||
svc 2 /* System call to start the first task. portSVC_START_SCHEDULER = 2. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
ulSetInterruptMask:
|
||||
mrs r0, basepri /* r0 = basepri. Return original basepri value. */
|
||||
mov r1, #configMAX_SYSCALL_INTERRUPT_PRIORITY
|
||||
msr basepri, r1 /* Disable interrupts upto configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
dsb
|
||||
isb
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vClearInterruptMask:
|
||||
msr basepri, r0 /* basepri = ulMask. */
|
||||
dsb
|
||||
isb
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
PendSV_Handler:
|
||||
mrs r1, psp /* Read PSP in r1. */
|
||||
ldr r2, =xSecureContext /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
ldr r0, [r2] /* Read xSecureContext - Value of xSecureContext must be in r0 as it is used as a parameter later. */
|
||||
|
||||
cbz r0, save_ns_context /* No secure context to save. */
|
||||
push {r0-r2, r14}
|
||||
bl SecureContext_SaveContext
|
||||
pop {r0-r3} /* LR is now in r3. */
|
||||
mov lr, r3 /* LR = r3. */
|
||||
lsls r2, r3, #25 /* r2 = r3 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
bpl save_ns_context /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
ldr r3, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r2, [r3] /* Read pxCurrentTCB. */
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
subs r1, r1, #16 /* Make space for xSecureContext, PSPLIM, CONTROL and LR on the stack. */
|
||||
str r1, [r2] /* Save the new top of stack in TCB. */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mrs r3, control /* r3 = CONTROL. */
|
||||
mov r4, lr /* r4 = LR/EXC_RETURN. */
|
||||
stmia r1!, {r0, r2-r4} /* Store xSecureContext, PSPLIM, CONTROL and LR on the stack. */
|
||||
#else /* configENABLE_MPU */
|
||||
subs r1, r1, #12 /* Make space for xSecureContext, PSPLIM and LR on the stack. */
|
||||
str r1, [r2] /* Save the new top of stack in TCB. */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mov r3, lr /* r3 = LR/EXC_RETURN. */
|
||||
stmia r1!, {r0, r2-r3} /* Store xSecureContext, PSPLIM and LR on the stack. */
|
||||
#endif /* configENABLE_MPU */
|
||||
b select_next_task
|
||||
|
||||
save_ns_context:
|
||||
ldr r3, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r2, [r3] /* Read pxCurrentTCB. */
|
||||
#if ( configENABLE_FPU == 1 )
|
||||
tst lr, #0x10 /* Test Bit[4] in LR. Bit[4] of EXC_RETURN is 0 if the FPU is in use. */
|
||||
it eq
|
||||
vstmdbeq r1!, {s16-s31} /* Store the FPU registers which are not saved automatically. */
|
||||
#endif /* configENABLE_FPU */
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
subs r1, r1, #48 /* Make space for xSecureContext, PSPLIM, CONTROL, LR and the remaining registers on the stack. */
|
||||
str r1, [r2] /* Save the new top of stack in TCB. */
|
||||
adds r1, r1, #16 /* r1 = r1 + 16. */
|
||||
stm r1, {r4-r11} /* Store the registers that are not saved automatically. */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mrs r3, control /* r3 = CONTROL. */
|
||||
mov r4, lr /* r4 = LR/EXC_RETURN. */
|
||||
subs r1, r1, #16 /* r1 = r1 - 16. */
|
||||
stm r1, {r0, r2-r4} /* Store xSecureContext, PSPLIM, CONTROL and LR on the stack. */
|
||||
#else /* configENABLE_MPU */
|
||||
subs r1, r1, #44 /* Make space for xSecureContext, PSPLIM, LR and the remaining registers on the stack. */
|
||||
str r1, [r2] /* Save the new top of stack in TCB. */
|
||||
adds r1, r1, #12 /* r1 = r1 + 12. */
|
||||
stm r1, {r4-r11} /* Store the registers that are not saved automatically. */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mov r3, lr /* r3 = LR/EXC_RETURN. */
|
||||
subs r1, r1, #12 /* r1 = r1 - 12. */
|
||||
stmia r1!, {r0, r2-r3} /* Store xSecureContext, PSPLIM and LR on the stack. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
select_next_task:
|
||||
mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY
|
||||
msr basepri, r0 /* Disable interrupts upto configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
dsb
|
||||
isb
|
||||
bl vTaskSwitchContext
|
||||
mov r0, #0 /* r0 = 0. */
|
||||
msr basepri, r0 /* Enable interrupts. */
|
||||
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r3, [r2] /* Read pxCurrentTCB. */
|
||||
ldr r1, [r3] /* The first item in pxCurrentTCB is the task top of stack. r1 now points to the top of stack. */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
dmb /* Complete outstanding transfers before disabling MPU. */
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
bic r4, r4, #1 /* r4 = r4 & ~1 i.e. Clear the bit 0 in r4. */
|
||||
str r4, [r2] /* Disable MPU. */
|
||||
|
||||
adds r3, #4 /* r3 = r3 + 4. r3 now points to MAIR0 in TCB. */
|
||||
ldr r4, [r3] /* r4 = *r3 i.e. r4 = MAIR0. */
|
||||
ldr r2, =0xe000edc0 /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
str r4, [r2] /* Program MAIR0. */
|
||||
ldr r2, =0xe000ed98 /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
movs r4, #4 /* r4 = 4. */
|
||||
str r4, [r2] /* Program RNR = 4. */
|
||||
adds r3, #4 /* r3 = r3 + 4. r3 now points to first RBAR in TCB. */
|
||||
ldr r2, =0xe000ed9c /* r2 = 0xe000ed9c [Location of RBAR]. */
|
||||
ldmia r3!, {r4-r11} /* Read 4 sets of RBAR/RLAR registers from TCB. */
|
||||
stmia r2!, {r4-r11} /* Write 4 set of RBAR/RLAR registers using alias registers. */
|
||||
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
orr r4, r4, #1 /* r4 = r4 | 1 i.e. Set the bit 0 in r4. */
|
||||
str r4, [r2] /* Enable MPU. */
|
||||
dsb /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
ldmia r1!, {r0, r2-r4} /* Read from stack - r0 = xSecureContext, r2 = PSPLIM, r3 = CONTROL and r4 = LR. */
|
||||
msr psplim, r2 /* Restore the PSPLIM register value for the task. */
|
||||
msr control, r3 /* Restore the CONTROL register value for the task. */
|
||||
mov lr, r4 /* LR = r4. */
|
||||
ldr r2, =xSecureContext /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
str r0, [r2] /* Restore the task's xSecureContext. */
|
||||
cbz r0, restore_ns_context /* If there is no secure context for the task, restore the non-secure context. */
|
||||
push {r1,r4}
|
||||
bl SecureContext_LoadContext /* Restore the secure context. */
|
||||
pop {r1,r4}
|
||||
mov lr, r4 /* LR = r4. */
|
||||
lsls r2, r4, #25 /* r2 = r4 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
bpl restore_ns_context /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
msr psp, r1 /* Remember the new top of stack for the task. */
|
||||
bx lr
|
||||
#else /* configENABLE_MPU */
|
||||
ldmia r1!, {r0, r2-r3} /* Read from stack - r0 = xSecureContext, r2 = PSPLIM and r3 = LR. */
|
||||
msr psplim, r2 /* Restore the PSPLIM register value for the task. */
|
||||
mov lr, r3 /* LR = r3. */
|
||||
ldr r2, =xSecureContext /* Read the location of xSecureContext i.e. &( xSecureContext ). */
|
||||
str r0, [r2] /* Restore the task's xSecureContext. */
|
||||
cbz r0, restore_ns_context /* If there is no secure context for the task, restore the non-secure context. */
|
||||
push {r1,r3}
|
||||
bl SecureContext_LoadContext /* Restore the secure context. */
|
||||
pop {r1,r3}
|
||||
mov lr, r3 /* LR = r3. */
|
||||
lsls r2, r3, #25 /* r2 = r3 << 25. Bit[6] of EXC_RETURN is 1 if secure stack was used, 0 if non-secure stack was used to store stack frame. */
|
||||
bpl restore_ns_context /* bpl - branch if positive or zero. If r2 >= 0 ==> Bit[6] in EXC_RETURN is 0 i.e. non-secure stack was used. */
|
||||
msr psp, r1 /* Remember the new top of stack for the task. */
|
||||
bx lr
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
restore_ns_context:
|
||||
ldmia r1!, {r4-r11} /* Restore the registers that are not automatically restored. */
|
||||
#if ( configENABLE_FPU == 1 )
|
||||
tst lr, #0x10 /* Test Bit[4] in LR. Bit[4] of EXC_RETURN is 0 if the FPU is in use. */
|
||||
it eq
|
||||
vldmiaeq r1!, {s16-s31} /* Restore the FPU registers which are not restored automatically. */
|
||||
#endif /* configENABLE_FPU */
|
||||
msr psp, r1 /* Remember the new top of stack for the task. */
|
||||
bx lr
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SVC_Handler:
|
||||
tst lr, #4
|
||||
ite eq
|
||||
mrseq r0, msp
|
||||
mrsne r0, psp
|
||||
b vPortSVCHandler_C
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vPortFreeSecureContext:
|
||||
/* r0 = uint32_t *pulTCB. */
|
||||
ldr r1, [r0] /* The first item in the TCB is the top of the stack. */
|
||||
ldr r0, [r1] /* The first item on the stack is the task's xSecureContext. */
|
||||
cmp r0, #0 /* Raise svc if task's xSecureContext is not NULL. */
|
||||
it ne
|
||||
svcne 1 /* Secure context is freed in the supervisor call. portSVC_FREE_SECURE_CONTEXT = 1. */
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
END
|
||||
308
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33/portmacro.h
Normal file
308
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33/portmacro.h
Normal file
|
|
@ -0,0 +1,308 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*------------------------------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
*
|
||||
* The settings in this file configure FreeRTOS correctly for the given hardware
|
||||
* and compiler.
|
||||
*
|
||||
* These settings should not be altered.
|
||||
*------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef configENABLE_FPU
|
||||
#error configENABLE_FPU must be defined in FreeRTOSConfig.h. Set configENABLE_FPU to 1 to enable the FPU or 0 to disable the FPU.
|
||||
#endif /* configENABLE_FPU */
|
||||
|
||||
#ifndef configENABLE_MPU
|
||||
#error configENABLE_MPU must be defined in FreeRTOSConfig.h. Set configENABLE_MPU to 1 to enable the MPU or 0 to disable the MPU.
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#ifndef configENABLE_TRUSTZONE
|
||||
#error configENABLE_TRUSTZONE must be defined in FreeRTOSConfig.h. Set configENABLE_TRUSTZONE to 1 to enable TrustZone or 0 to disable TrustZone.
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Type definitions.
|
||||
*/
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
* not need to be guarded with a critical section. */
|
||||
#define portTICK_TYPE_IS_ATOMIC 1
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Architecture specifics.
|
||||
*/
|
||||
#define portARCH_NAME "Cortex-M33"
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portNOP()
|
||||
#define portINLINE __inline
|
||||
#ifndef portFORCE_INLINE
|
||||
#define portFORCE_INLINE inline __attribute__(( always_inline ))
|
||||
#endif
|
||||
#define portHAS_STACK_OVERFLOW_CHECKING 1
|
||||
#define portDONT_DISCARD __root
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Extern declarations.
|
||||
*/
|
||||
extern BaseType_t xPortIsInsideInterrupt( void );
|
||||
|
||||
extern void vPortYield( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern void vPortEnterCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
extern void vPortExitCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
extern void vClearInterruptMask( uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
extern void vPortAllocateSecureContext( uint32_t ulSecureStackSize ); /* __attribute__ (( naked )) */
|
||||
extern void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */;
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
extern BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */;
|
||||
extern void vResetPrivilege( void ) /* __attribute__ (( naked )) */;
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief MPU specific constants.
|
||||
*/
|
||||
#if( configENABLE_MPU == 1 )
|
||||
#define portUSING_MPU_WRAPPERS 1
|
||||
#define portPRIVILEGE_BIT ( 0x80000000UL )
|
||||
#else
|
||||
#define portPRIVILEGE_BIT ( 0x0UL )
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
|
||||
/* MPU regions. */
|
||||
#define portPRIVILEGED_FLASH_REGION ( 0UL )
|
||||
#define portUNPRIVILEGED_FLASH_REGION ( 1UL )
|
||||
#define portUNPRIVILEGED_SYSCALLS_REGION ( 2UL )
|
||||
#define portPRIVILEGED_RAM_REGION ( 3UL )
|
||||
#define portSTACK_REGION ( 4UL )
|
||||
#define portFIRST_CONFIGURABLE_REGION ( 5UL )
|
||||
#define portLAST_CONFIGURABLE_REGION ( 7UL )
|
||||
#define portNUM_CONFIGURABLE_REGIONS ( ( portLAST_CONFIGURABLE_REGION - portFIRST_CONFIGURABLE_REGION ) + 1 )
|
||||
#define portTOTAL_NUM_REGIONS ( portNUM_CONFIGURABLE_REGIONS + 1 ) /* Plus one to make space for the stack region. */
|
||||
|
||||
/* Device memory attributes used in MPU_MAIR registers.
|
||||
*
|
||||
* 8-bit values encoded as follows:
|
||||
* Bit[7:4] - 0000 - Device Memory
|
||||
* Bit[3:2] - 00 --> Device-nGnRnE
|
||||
* 01 --> Device-nGnRE
|
||||
* 10 --> Device-nGRE
|
||||
* 11 --> Device-GRE
|
||||
* Bit[1:0] - 00, Reserved.
|
||||
*/
|
||||
#define portMPU_DEVICE_MEMORY_nGnRnE ( 0x00 ) /* 0000 0000 */
|
||||
#define portMPU_DEVICE_MEMORY_nGnRE ( 0x04 ) /* 0000 0100 */
|
||||
#define portMPU_DEVICE_MEMORY_nGRE ( 0x08 ) /* 0000 1000 */
|
||||
#define portMPU_DEVICE_MEMORY_GRE ( 0x0C ) /* 0000 1100 */
|
||||
|
||||
/* Normal memory attributes used in MPU_MAIR registers. */
|
||||
#define portMPU_NORMAL_MEMORY_NON_CACHEABLE ( 0x44 ) /* Non-cacheable. */
|
||||
#define portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE ( 0xFF ) /* Non-Transient, Write-back, Read-Allocate and Write-Allocate. */
|
||||
|
||||
/* Attributes used in MPU_RBAR registers. */
|
||||
#define portMPU_REGION_NON_SHAREABLE ( 0UL << 3UL )
|
||||
#define portMPU_REGION_INNER_SHAREABLE ( 1UL << 3UL )
|
||||
#define portMPU_REGION_OUTER_SHAREABLE ( 2UL << 3UL )
|
||||
|
||||
#define portMPU_REGION_PRIVILEGED_READ_WRITE ( 0UL << 1UL )
|
||||
#define portMPU_REGION_READ_WRITE ( 1UL << 1UL )
|
||||
#define portMPU_REGION_PRIVILEGED_READ_ONLY ( 2UL << 1UL )
|
||||
#define portMPU_REGION_READ_ONLY ( 3UL << 1UL )
|
||||
|
||||
#define portMPU_REGION_EXECUTE_NEVER ( 1UL )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Settings to define an MPU region.
|
||||
*/
|
||||
typedef struct MPURegionSettings
|
||||
{
|
||||
uint32_t ulRBAR; /**< RBAR for the region. */
|
||||
uint32_t ulRLAR; /**< RLAR for the region. */
|
||||
} MPURegionSettings_t;
|
||||
|
||||
/**
|
||||
* @brief MPU settings as stored in the TCB.
|
||||
*/
|
||||
typedef struct MPU_SETTINGS
|
||||
{
|
||||
uint32_t ulMAIR0; /**< MAIR0 for the task containing attributes for all the 4 per task regions. */
|
||||
MPURegionSettings_t xRegionsSettings[ portTOTAL_NUM_REGIONS ]; /**< Settings for 4 per task regions. */
|
||||
} xMPU_SETTINGS;
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief SVC numbers.
|
||||
*/
|
||||
#define portSVC_ALLOCATE_SECURE_CONTEXT 0
|
||||
#define portSVC_FREE_SECURE_CONTEXT 1
|
||||
#define portSVC_START_SCHEDULER 2
|
||||
#define portSVC_RAISE_PRIVILEGE 3
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Scheduler utilities.
|
||||
*/
|
||||
#define portYIELD() vPortYield()
|
||||
#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
|
||||
#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT
|
||||
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Critical section management.
|
||||
*/
|
||||
#define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMask()
|
||||
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vClearInterruptMask( x )
|
||||
#define portDISABLE_INTERRUPTS() ulSetInterruptMask()
|
||||
#define portENABLE_INTERRUPTS() vClearInterruptMask( 0 )
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Task function macros as described on the FreeRTOS.org WEB site.
|
||||
*/
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
/**
|
||||
* @brief Allocate a secure context for the task.
|
||||
*
|
||||
* Tasks are not created with a secure context. Any task that is going to call
|
||||
* secure functions must call portALLOCATE_SECURE_CONTEXT() to allocate itself a
|
||||
* secure context before it calls any secure function.
|
||||
*
|
||||
* @param[in] ulSecureStackSize The size of the secure stack to be allocated.
|
||||
*/
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize ) vPortAllocateSecureContext( ulSecureStackSize )
|
||||
|
||||
/**
|
||||
* @brief Called when a task is deleted to delete the task's secure context,
|
||||
* if it has one.
|
||||
*
|
||||
* @param[in] pxTCB The TCB of the task being deleted.
|
||||
*/
|
||||
#define portCLEAN_UP_TCB( pxTCB ) vPortFreeSecureContext( ( uint32_t * ) pxTCB )
|
||||
#else
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize )
|
||||
#define portCLEAN_UP_TCB( pxTCB )
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
/**
|
||||
* @brief Checks whether or not the processor is privileged.
|
||||
*
|
||||
* @return 1 if the processor is already privileged, 0 otherwise.
|
||||
*/
|
||||
#define portIS_PRIVILEGED() xIsPrivileged()
|
||||
|
||||
/**
|
||||
* @brief Raise an SVC request to raise privilege.
|
||||
*
|
||||
* The SVC handler checks that the SVC was raised from a system call and only
|
||||
* then it raises the privilege. If this is called from any other place,
|
||||
* the privilege is not raised.
|
||||
*/
|
||||
#define portRAISE_PRIVILEGE() __asm volatile ( "svc %0 \n" :: "i" ( portSVC_RAISE_PRIVILEGE ) : "memory" );
|
||||
|
||||
/**
|
||||
* @brief Lowers the privilege level by setting the bit 0 of the CONTROL
|
||||
* register.
|
||||
*/
|
||||
#define portRESET_PRIVILEGE() vResetPrivilege()
|
||||
#else
|
||||
#define portIS_PRIVILEGED()
|
||||
#define portRAISE_PRIVILEGE()
|
||||
#define portRESET_PRIVILEGE()
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Barriers.
|
||||
*/
|
||||
#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Suppress warnings that are generated by the IAR tools, but cannot be fixed in
|
||||
* the source code because to do so would cause other compilers to generate
|
||||
* warnings. */
|
||||
#pragma diag_suppress=Be006
|
||||
#pragma diag_suppress=Pa082
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
257
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33_NTZ/portasm.s
Normal file
257
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33_NTZ/portasm.s
Normal file
|
|
@ -0,0 +1,257 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
/* Including FreeRTOSConfig.h here will cause build errors if the header file
|
||||
contains code not understood by the assembler - for example the 'extern' keyword.
|
||||
To avoid errors place any such code inside a #ifdef __ICCARM__/#endif block so
|
||||
the code is included in C files but excluded by the preprocessor in assembly
|
||||
files (__ICCARM__ is defined by the IAR C compiler but not by the IAR assembler. */
|
||||
#include "FreeRTOSConfig.h"
|
||||
|
||||
EXTERN pxCurrentTCB
|
||||
EXTERN vTaskSwitchContext
|
||||
EXTERN vPortSVCHandler_C
|
||||
|
||||
PUBLIC xIsPrivileged
|
||||
PUBLIC vResetPrivilege
|
||||
PUBLIC vRestoreContextOfFirstTask
|
||||
PUBLIC vRaisePrivilege
|
||||
PUBLIC vStartFirstTask
|
||||
PUBLIC ulSetInterruptMask
|
||||
PUBLIC vClearInterruptMask
|
||||
PUBLIC PendSV_Handler
|
||||
PUBLIC SVC_Handler
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*---------------- Unprivileged Functions -------------------*/
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SECTION .text:CODE:NOROOT(2)
|
||||
THUMB
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
xIsPrivileged:
|
||||
mrs r0, control /* r0 = CONTROL. */
|
||||
tst r0, #1 /* Perform r0 & 1 (bitwise AND) and update the conditions flag. */
|
||||
ite ne
|
||||
movne r0, #0 /* CONTROL[0]!=0. Return false to indicate that the processor is not privileged. */
|
||||
moveq r0, #1 /* CONTROL[0]==0. Return true to indicate that the processor is not privileged. */
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vResetPrivilege:
|
||||
mrs r0, control /* r0 = CONTROL. */
|
||||
orr r0, r0, #1 /* r0 = r0 | 1. */
|
||||
msr control, r0 /* CONTROL = r0. */
|
||||
bx lr /* Return to the caller. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/*----------------- Privileged Functions --------------------*/
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SECTION privileged_functions:CODE:NOROOT(2)
|
||||
THUMB
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vRestoreContextOfFirstTask:
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r1, [r2] /* Read pxCurrentTCB. */
|
||||
ldr r0, [r1] /* Read top of stack from TCB - The first item in pxCurrentTCB is the task top of stack. */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
dmb /* Complete outstanding transfers before disabling MPU. */
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
bic r4, r4, #1 /* r4 = r4 & ~1 i.e. Clear the bit 0 in r4. */
|
||||
str r4, [r2] /* Disable MPU. */
|
||||
|
||||
adds r1, #4 /* r1 = r1 + 4. r1 now points to MAIR0 in TCB. */
|
||||
ldr r3, [r1] /* r3 = *r1 i.e. r3 = MAIR0. */
|
||||
ldr r2, =0xe000edc0 /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
str r3, [r2] /* Program MAIR0. */
|
||||
ldr r2, =0xe000ed98 /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
movs r3, #4 /* r3 = 4. */
|
||||
str r3, [r2] /* Program RNR = 4. */
|
||||
adds r1, #4 /* r1 = r1 + 4. r1 now points to first RBAR in TCB. */
|
||||
ldr r2, =0xe000ed9c /* r2 = 0xe000ed9c [Location of RBAR]. */
|
||||
ldmia r1!, {r4-r11} /* Read 4 sets of RBAR/RLAR registers from TCB. */
|
||||
stmia r2!, {r4-r11} /* Write 4 set of RBAR/RLAR registers using alias registers. */
|
||||
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
orr r4, r4, #1 /* r4 = r4 | 1 i.e. Set the bit 0 in r4. */
|
||||
str r4, [r2] /* Enable MPU. */
|
||||
dsb /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
ldm r0!, {r1-r3} /* Read from stack - r1 = PSPLIM, r2 = CONTROL and r3 = EXC_RETURN. */
|
||||
msr psplim, r1 /* Set this task's PSPLIM value. */
|
||||
msr control, r2 /* Set this task's CONTROL value. */
|
||||
adds r0, #32 /* Discard everything up to r0. */
|
||||
msr psp, r0 /* This is now the new top of stack to use in the task. */
|
||||
isb
|
||||
bx r3 /* Finally, branch to EXC_RETURN. */
|
||||
#else /* configENABLE_MPU */
|
||||
ldm r0!, {r1-r2} /* Read from stack - r1 = PSPLIM and r2 = EXC_RETURN. */
|
||||
msr psplim, r1 /* Set this task's PSPLIM value. */
|
||||
movs r1, #2 /* r1 = 2. */
|
||||
msr CONTROL, r1 /* Switch to use PSP in the thread mode. */
|
||||
adds r0, #32 /* Discard everything up to r0. */
|
||||
msr psp, r0 /* This is now the new top of stack to use in the task. */
|
||||
isb
|
||||
bx r2 /* Finally, branch to EXC_RETURN. */
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vRaisePrivilege:
|
||||
mrs r0, control /* Read the CONTROL register. */
|
||||
bic r0, r0, #1 /* Clear the bit 0. */
|
||||
msr control, r0 /* Write back the new CONTROL value. */
|
||||
bx lr /* Return to the caller. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vStartFirstTask:
|
||||
ldr r0, =0xe000ed08 /* Use the NVIC offset register to locate the stack. */
|
||||
ldr r0, [r0] /* Read the VTOR register which gives the address of vector table. */
|
||||
ldr r0, [r0] /* The first entry in vector table is stack pointer. */
|
||||
msr msp, r0 /* Set the MSP back to the start of the stack. */
|
||||
cpsie i /* Globally enable interrupts. */
|
||||
cpsie f
|
||||
dsb
|
||||
isb
|
||||
svc 2 /* System call to start the first task. portSVC_START_SCHEDULER = 2. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
ulSetInterruptMask:
|
||||
mrs r0, basepri /* r0 = basepri. Return original basepri value. */
|
||||
mov r1, #configMAX_SYSCALL_INTERRUPT_PRIORITY
|
||||
msr basepri, r1 /* Disable interrupts upto configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
dsb
|
||||
isb
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
vClearInterruptMask:
|
||||
msr basepri, r0 /* basepri = ulMask. */
|
||||
dsb
|
||||
isb
|
||||
bx lr /* Return. */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
PendSV_Handler:
|
||||
mrs r0, psp /* Read PSP in r0. */
|
||||
#if ( configENABLE_FPU == 1 )
|
||||
tst lr, #0x10 /* Test Bit[4] in LR. Bit[4] of EXC_RETURN is 0 if the FPU is in use. */
|
||||
it eq
|
||||
vstmdbeq r0!, {s16-s31} /* Store the FPU registers which are not saved automatically. */
|
||||
#endif /* configENABLE_FPU */
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
mrs r1, psplim /* r1 = PSPLIM. */
|
||||
mrs r2, control /* r2 = CONTROL. */
|
||||
mov r3, lr /* r3 = LR/EXC_RETURN. */
|
||||
stmdb r0!, {r1-r11} /* Store on the stack - PSPLIM, CONTROL, LR and registers that are not automatically saved. */
|
||||
#else /* configENABLE_MPU */
|
||||
mrs r2, psplim /* r2 = PSPLIM. */
|
||||
mov r3, lr /* r3 = LR/EXC_RETURN. */
|
||||
stmdb r0!, {r2-r11} /* Store on the stack - PSPLIM, LR and registers that are not automatically. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r1, [r2] /* Read pxCurrentTCB. */
|
||||
str r0, [r1] /* Save the new top of stack in TCB. */
|
||||
|
||||
mov r0, #configMAX_SYSCALL_INTERRUPT_PRIORITY
|
||||
msr basepri, r0 /* Disable interrupts upto configMAX_SYSCALL_INTERRUPT_PRIORITY. */
|
||||
dsb
|
||||
isb
|
||||
bl vTaskSwitchContext
|
||||
mov r0, #0 /* r0 = 0. */
|
||||
msr basepri, r0 /* Enable interrupts. */
|
||||
|
||||
ldr r2, =pxCurrentTCB /* Read the location of pxCurrentTCB i.e. &( pxCurrentTCB ). */
|
||||
ldr r1, [r2] /* Read pxCurrentTCB. */
|
||||
ldr r0, [r1] /* The first item in pxCurrentTCB is the task top of stack. r0 now points to the top of stack. */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
dmb /* Complete outstanding transfers before disabling MPU. */
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
bic r4, r4, #1 /* r4 = r4 & ~1 i.e. Clear the bit 0 in r4. */
|
||||
str r4, [r2] /* Disable MPU. */
|
||||
|
||||
adds r1, #4 /* r1 = r1 + 4. r1 now points to MAIR0 in TCB. */
|
||||
ldr r3, [r1] /* r3 = *r1 i.e. r3 = MAIR0. */
|
||||
ldr r2, =0xe000edc0 /* r2 = 0xe000edc0 [Location of MAIR0]. */
|
||||
str r3, [r2] /* Program MAIR0. */
|
||||
ldr r2, =0xe000ed98 /* r2 = 0xe000ed98 [Location of RNR]. */
|
||||
movs r3, #4 /* r3 = 4. */
|
||||
str r3, [r2] /* Program RNR = 4. */
|
||||
adds r1, #4 /* r1 = r1 + 4. r1 now points to first RBAR in TCB. */
|
||||
ldr r2, =0xe000ed9c /* r2 = 0xe000ed9c [Location of RBAR]. */
|
||||
ldmia r1!, {r4-r11} /* Read 4 sets of RBAR/RLAR registers from TCB. */
|
||||
stmia r2!, {r4-r11} /* Write 4 set of RBAR/RLAR registers using alias registers. */
|
||||
|
||||
ldr r2, =0xe000ed94 /* r2 = 0xe000ed94 [Location of MPU_CTRL]. */
|
||||
ldr r4, [r2] /* Read the value of MPU_CTRL. */
|
||||
orr r4, r4, #1 /* r4 = r4 | 1 i.e. Set the bit 0 in r4. */
|
||||
str r4, [r2] /* Enable MPU. */
|
||||
dsb /* Force memory writes before continuing. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
ldmia r0!, {r1-r11} /* Read from stack - r1 = PSPLIM, r2 = CONTROL, r3 = LR and r4-r11 restored. */
|
||||
#else /* configENABLE_MPU */
|
||||
ldmia r0!, {r2-r11} /* Read from stack - r2 = PSPLIM, r3 = LR and r4-r11 restored. */
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#if ( configENABLE_FPU == 1 )
|
||||
tst r3, #0x10 /* Test Bit[4] in LR. Bit[4] of EXC_RETURN is 0 if the FPU is in use. */
|
||||
it eq
|
||||
vldmiaeq r0!, {s16-s31} /* Restore the FPU registers which are not restored automatically. */
|
||||
#endif /* configENABLE_FPU */
|
||||
|
||||
#if ( configENABLE_MPU == 1 )
|
||||
msr psplim, r1 /* Restore the PSPLIM register value for the task. */
|
||||
msr control, r2 /* Restore the CONTROL register value for the task. */
|
||||
#else /* configENABLE_MPU */
|
||||
msr psplim, r2 /* Restore the PSPLIM register value for the task. */
|
||||
#endif /* configENABLE_MPU */
|
||||
msr psp, r0 /* Remember the new top of stack for the task. */
|
||||
bx r3
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
SVC_Handler:
|
||||
tst lr, #4
|
||||
ite eq
|
||||
mrseq r0, msp
|
||||
mrsne r0, psp
|
||||
b vPortSVCHandler_C
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
END
|
||||
308
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33_NTZ/portmacro.h
Normal file
308
portable/ARMv8M/non_secure/portable/IAR/ARM_CM33_NTZ/portmacro.h
Normal file
|
|
@ -0,0 +1,308 @@
|
|||
/*
|
||||
* FreeRTOS Kernel V10.3.0
|
||||
* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* http://www.FreeRTOS.org
|
||||
* http://aws.amazon.com/freertos
|
||||
*
|
||||
* 1 tab == 4 spaces!
|
||||
*/
|
||||
|
||||
#ifndef PORTMACRO_H
|
||||
#define PORTMACRO_H
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/*------------------------------------------------------------------------------
|
||||
* Port specific definitions.
|
||||
*
|
||||
* The settings in this file configure FreeRTOS correctly for the given hardware
|
||||
* and compiler.
|
||||
*
|
||||
* These settings should not be altered.
|
||||
*------------------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
#ifndef configENABLE_FPU
|
||||
#error configENABLE_FPU must be defined in FreeRTOSConfig.h. Set configENABLE_FPU to 1 to enable the FPU or 0 to disable the FPU.
|
||||
#endif /* configENABLE_FPU */
|
||||
|
||||
#ifndef configENABLE_MPU
|
||||
#error configENABLE_MPU must be defined in FreeRTOSConfig.h. Set configENABLE_MPU to 1 to enable the MPU or 0 to disable the MPU.
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
#ifndef configENABLE_TRUSTZONE
|
||||
#error configENABLE_TRUSTZONE must be defined in FreeRTOSConfig.h. Set configENABLE_TRUSTZONE to 1 to enable TrustZone or 0 to disable TrustZone.
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Type definitions.
|
||||
*/
|
||||
#define portCHAR char
|
||||
#define portFLOAT float
|
||||
#define portDOUBLE double
|
||||
#define portLONG long
|
||||
#define portSHORT short
|
||||
#define portSTACK_TYPE uint32_t
|
||||
#define portBASE_TYPE long
|
||||
|
||||
typedef portSTACK_TYPE StackType_t;
|
||||
typedef long BaseType_t;
|
||||
typedef unsigned long UBaseType_t;
|
||||
|
||||
#if( configUSE_16_BIT_TICKS == 1 )
|
||||
typedef uint16_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffff
|
||||
#else
|
||||
typedef uint32_t TickType_t;
|
||||
#define portMAX_DELAY ( TickType_t ) 0xffffffffUL
|
||||
|
||||
/* 32-bit tick type on a 32-bit architecture, so reads of the tick count do
|
||||
* not need to be guarded with a critical section. */
|
||||
#define portTICK_TYPE_IS_ATOMIC 1
|
||||
#endif
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* Architecture specifics.
|
||||
*/
|
||||
#define portARCH_NAME "Cortex-M33"
|
||||
#define portSTACK_GROWTH ( -1 )
|
||||
#define portTICK_PERIOD_MS ( ( TickType_t ) 1000 / configTICK_RATE_HZ )
|
||||
#define portBYTE_ALIGNMENT 8
|
||||
#define portNOP()
|
||||
#define portINLINE __inline
|
||||
#ifndef portFORCE_INLINE
|
||||
#define portFORCE_INLINE inline __attribute__(( always_inline ))
|
||||
#endif
|
||||
#define portHAS_STACK_OVERFLOW_CHECKING 1
|
||||
#define portDONT_DISCARD __root
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Extern declarations.
|
||||
*/
|
||||
extern BaseType_t xPortIsInsideInterrupt( void );
|
||||
|
||||
extern void vPortYield( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern void vPortEnterCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
extern void vPortExitCritical( void ) /* PRIVILEGED_FUNCTION */;
|
||||
|
||||
extern uint32_t ulSetInterruptMask( void ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
extern void vClearInterruptMask( uint32_t ulMask ) /* __attribute__(( naked )) PRIVILEGED_FUNCTION */;
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
extern void vPortAllocateSecureContext( uint32_t ulSecureStackSize ); /* __attribute__ (( naked )) */
|
||||
extern void vPortFreeSecureContext( uint32_t *pulTCB ) /* __attribute__ (( naked )) PRIVILEGED_FUNCTION */;
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
extern BaseType_t xIsPrivileged( void ) /* __attribute__ (( naked )) */;
|
||||
extern void vResetPrivilege( void ) /* __attribute__ (( naked )) */;
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief MPU specific constants.
|
||||
*/
|
||||
#if( configENABLE_MPU == 1 )
|
||||
#define portUSING_MPU_WRAPPERS 1
|
||||
#define portPRIVILEGE_BIT ( 0x80000000UL )
|
||||
#else
|
||||
#define portPRIVILEGE_BIT ( 0x0UL )
|
||||
#endif /* configENABLE_MPU */
|
||||
|
||||
|
||||
/* MPU regions. */
|
||||
#define portPRIVILEGED_FLASH_REGION ( 0UL )
|
||||
#define portUNPRIVILEGED_FLASH_REGION ( 1UL )
|
||||
#define portUNPRIVILEGED_SYSCALLS_REGION ( 2UL )
|
||||
#define portPRIVILEGED_RAM_REGION ( 3UL )
|
||||
#define portSTACK_REGION ( 4UL )
|
||||
#define portFIRST_CONFIGURABLE_REGION ( 5UL )
|
||||
#define portLAST_CONFIGURABLE_REGION ( 7UL )
|
||||
#define portNUM_CONFIGURABLE_REGIONS ( ( portLAST_CONFIGURABLE_REGION - portFIRST_CONFIGURABLE_REGION ) + 1 )
|
||||
#define portTOTAL_NUM_REGIONS ( portNUM_CONFIGURABLE_REGIONS + 1 ) /* Plus one to make space for the stack region. */
|
||||
|
||||
/* Device memory attributes used in MPU_MAIR registers.
|
||||
*
|
||||
* 8-bit values encoded as follows:
|
||||
* Bit[7:4] - 0000 - Device Memory
|
||||
* Bit[3:2] - 00 --> Device-nGnRnE
|
||||
* 01 --> Device-nGnRE
|
||||
* 10 --> Device-nGRE
|
||||
* 11 --> Device-GRE
|
||||
* Bit[1:0] - 00, Reserved.
|
||||
*/
|
||||
#define portMPU_DEVICE_MEMORY_nGnRnE ( 0x00 ) /* 0000 0000 */
|
||||
#define portMPU_DEVICE_MEMORY_nGnRE ( 0x04 ) /* 0000 0100 */
|
||||
#define portMPU_DEVICE_MEMORY_nGRE ( 0x08 ) /* 0000 1000 */
|
||||
#define portMPU_DEVICE_MEMORY_GRE ( 0x0C ) /* 0000 1100 */
|
||||
|
||||
/* Normal memory attributes used in MPU_MAIR registers. */
|
||||
#define portMPU_NORMAL_MEMORY_NON_CACHEABLE ( 0x44 ) /* Non-cacheable. */
|
||||
#define portMPU_NORMAL_MEMORY_BUFFERABLE_CACHEABLE ( 0xFF ) /* Non-Transient, Write-back, Read-Allocate and Write-Allocate. */
|
||||
|
||||
/* Attributes used in MPU_RBAR registers. */
|
||||
#define portMPU_REGION_NON_SHAREABLE ( 0UL << 3UL )
|
||||
#define portMPU_REGION_INNER_SHAREABLE ( 1UL << 3UL )
|
||||
#define portMPU_REGION_OUTER_SHAREABLE ( 2UL << 3UL )
|
||||
|
||||
#define portMPU_REGION_PRIVILEGED_READ_WRITE ( 0UL << 1UL )
|
||||
#define portMPU_REGION_READ_WRITE ( 1UL << 1UL )
|
||||
#define portMPU_REGION_PRIVILEGED_READ_ONLY ( 2UL << 1UL )
|
||||
#define portMPU_REGION_READ_ONLY ( 3UL << 1UL )
|
||||
|
||||
#define portMPU_REGION_EXECUTE_NEVER ( 1UL )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Settings to define an MPU region.
|
||||
*/
|
||||
typedef struct MPURegionSettings
|
||||
{
|
||||
uint32_t ulRBAR; /**< RBAR for the region. */
|
||||
uint32_t ulRLAR; /**< RLAR for the region. */
|
||||
} MPURegionSettings_t;
|
||||
|
||||
/**
|
||||
* @brief MPU settings as stored in the TCB.
|
||||
*/
|
||||
typedef struct MPU_SETTINGS
|
||||
{
|
||||
uint32_t ulMAIR0; /**< MAIR0 for the task containing attributes for all the 4 per task regions. */
|
||||
MPURegionSettings_t xRegionsSettings[ portTOTAL_NUM_REGIONS ]; /**< Settings for 4 per task regions. */
|
||||
} xMPU_SETTINGS;
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief SVC numbers.
|
||||
*/
|
||||
#define portSVC_ALLOCATE_SECURE_CONTEXT 0
|
||||
#define portSVC_FREE_SECURE_CONTEXT 1
|
||||
#define portSVC_START_SCHEDULER 2
|
||||
#define portSVC_RAISE_PRIVILEGE 3
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Scheduler utilities.
|
||||
*/
|
||||
#define portYIELD() vPortYield()
|
||||
#define portNVIC_INT_CTRL_REG ( * ( ( volatile uint32_t * ) 0xe000ed04 ) )
|
||||
#define portNVIC_PENDSVSET_BIT ( 1UL << 28UL )
|
||||
#define portEND_SWITCHING_ISR( xSwitchRequired ) if( xSwitchRequired ) portNVIC_INT_CTRL_REG = portNVIC_PENDSVSET_BIT
|
||||
#define portYIELD_FROM_ISR( x ) portEND_SWITCHING_ISR( x )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Critical section management.
|
||||
*/
|
||||
#define portSET_INTERRUPT_MASK_FROM_ISR() ulSetInterruptMask()
|
||||
#define portCLEAR_INTERRUPT_MASK_FROM_ISR(x) vClearInterruptMask( x )
|
||||
#define portDISABLE_INTERRUPTS() ulSetInterruptMask()
|
||||
#define portENABLE_INTERRUPTS() vClearInterruptMask( 0 )
|
||||
#define portENTER_CRITICAL() vPortEnterCritical()
|
||||
#define portEXIT_CRITICAL() vPortExitCritical()
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Task function macros as described on the FreeRTOS.org WEB site.
|
||||
*/
|
||||
#define portTASK_FUNCTION_PROTO( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
#define portTASK_FUNCTION( vFunction, pvParameters ) void vFunction( void *pvParameters )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_TRUSTZONE == 1 )
|
||||
/**
|
||||
* @brief Allocate a secure context for the task.
|
||||
*
|
||||
* Tasks are not created with a secure context. Any task that is going to call
|
||||
* secure functions must call portALLOCATE_SECURE_CONTEXT() to allocate itself a
|
||||
* secure context before it calls any secure function.
|
||||
*
|
||||
* @param[in] ulSecureStackSize The size of the secure stack to be allocated.
|
||||
*/
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize ) vPortAllocateSecureContext( ulSecureStackSize )
|
||||
|
||||
/**
|
||||
* @brief Called when a task is deleted to delete the task's secure context,
|
||||
* if it has one.
|
||||
*
|
||||
* @param[in] pxTCB The TCB of the task being deleted.
|
||||
*/
|
||||
#define portCLEAN_UP_TCB( pxTCB ) vPortFreeSecureContext( ( uint32_t * ) pxTCB )
|
||||
#else
|
||||
#define portALLOCATE_SECURE_CONTEXT( ulSecureStackSize )
|
||||
#define portCLEAN_UP_TCB( pxTCB )
|
||||
#endif /* configENABLE_TRUSTZONE */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#if( configENABLE_MPU == 1 )
|
||||
/**
|
||||
* @brief Checks whether or not the processor is privileged.
|
||||
*
|
||||
* @return 1 if the processor is already privileged, 0 otherwise.
|
||||
*/
|
||||
#define portIS_PRIVILEGED() xIsPrivileged()
|
||||
|
||||
/**
|
||||
* @brief Raise an SVC request to raise privilege.
|
||||
*
|
||||
* The SVC handler checks that the SVC was raised from a system call and only
|
||||
* then it raises the privilege. If this is called from any other place,
|
||||
* the privilege is not raised.
|
||||
*/
|
||||
#define portRAISE_PRIVILEGE() __asm volatile ( "svc %0 \n" :: "i" ( portSVC_RAISE_PRIVILEGE ) : "memory" );
|
||||
|
||||
/**
|
||||
* @brief Lowers the privilege level by setting the bit 0 of the CONTROL
|
||||
* register.
|
||||
*/
|
||||
#define portRESET_PRIVILEGE() vResetPrivilege()
|
||||
#else
|
||||
#define portIS_PRIVILEGED()
|
||||
#define portRAISE_PRIVILEGE()
|
||||
#define portRESET_PRIVILEGE()
|
||||
#endif /* configENABLE_MPU */
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/**
|
||||
* @brief Barriers.
|
||||
*/
|
||||
#define portMEMORY_BARRIER() __asm volatile( "" ::: "memory" )
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
/* Suppress warnings that are generated by the IAR tools, but cannot be fixed in
|
||||
* the source code because to do so would cause other compilers to generate
|
||||
* warnings. */
|
||||
#pragma diag_suppress=Be006
|
||||
#pragma diag_suppress=Pa082
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* PORTMACRO_H */
|
||||
Loading…
Add table
Add a link
Reference in a new issue