mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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989bc332b2
* Add XMOS XCore ports Some minor modifications are also made to the kernel to support the XCore compiler's automatic stack size calculation. * Update kernel to support SMP The XMOS XCore ports are also updated to support SMP. * Fix compiler warnings in xcore ports The port set and clear interrupt mask from ISR macros were removed from the ports so that the default macros found in FreeRTOS.h are used instead. The default macros do not result in warnings when they are used. * Remove inline function from timers.h Inline function converted to macro. This should now build when optimizations are off and inlining is disabled. * Fix compiler warnings in xcore ports and tasks.c * fixed documentation for ulTaskNotifyTake() and ulTaskNotifyTakeIndexed() * spelling fixes for tasks.c Co-authored-by: Michael Bruno <mikeb@xmos.com>
150 lines
4.8 KiB
C
150 lines
4.8 KiB
C
/*
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* FreeRTOS Kernel V10.4.3
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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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* https://www.FreeRTOS.org
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* https://github.com/FreeRTOS
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*
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* 1 tab == 4 spaces!
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*/
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EXTERN pxCurrentTCB
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EXTERN usCriticalNesting
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#include "FreeRTOSConfig.h"
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; Context save and restore macro definitions
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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portSAVE_CONTEXT MACRO
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add -0x0C,sp ; prepare stack to save necessary values
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st.w lp,8[sp] ; store LP to stack
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stsr 0,r31
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st.w lp,4[sp] ; store EIPC to stack
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stsr 1,lp
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st.w lp,0[sp] ; store EIPSW to stack
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#if configDATA_MODE == 1 ; Using the Tiny data model
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prepare {r20,r21,r22,r23,r24,r25,r26,r27,r28,r29,r30},76,sp ; save general purpose registers
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sst.w r19,72[ep]
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sst.w r18,68[ep]
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sst.w r17,64[ep]
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sst.w r16,60[ep]
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sst.w r15,56[ep]
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sst.w r14,52[ep]
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sst.w r13,48[ep]
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sst.w r12,44[ep]
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sst.w r11,40[ep]
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sst.w r10,36[ep]
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sst.w r9,32[ep]
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sst.w r8,28[ep]
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sst.w r7,24[ep]
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sst.w r6,20[ep]
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sst.w r5,16[ep]
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sst.w r4,12[ep]
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#else ; Using the Small/Large data model
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prepare {r20,r21,r22,r23,r24,r26,r27,r28,r29,r30},72,sp ; save general purpose registers
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sst.w r19,68[ep]
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sst.w r18,64[ep]
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sst.w r17,60[ep]
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sst.w r16,56[ep]
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sst.w r15,52[ep]
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sst.w r14,48[ep]
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sst.w r13,44[ep]
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sst.w r12,40[ep]
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sst.w r11,36[ep]
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sst.w r10,32[ep]
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sst.w r9,28[ep]
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sst.w r8,24[ep]
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sst.w r7,20[ep]
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sst.w r6,16[ep]
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sst.w r5,12[ep]
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#endif /* configDATA_MODE */
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sst.w r2,8[ep]
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sst.w r1,4[ep]
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MOVHI hi1(usCriticalNesting),r0,r1 ; save usCriticalNesting value to stack
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ld.w lw1(usCriticalNesting)[r1],r2
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sst.w r2,0[ep]
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MOVHI hi1(pxCurrentTCB),r0,r1 ; save SP to top of current TCB
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ld.w lw1(pxCurrentTCB)[r1],r2
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st.w sp,0[r2]
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ENDM
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portRESTORE_CONTEXT MACRO
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MOVHI hi1(pxCurrentTCB),r0,r1 ; get Stackpointer address
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ld.w lw1(pxCurrentTCB)[r1],sp
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MOV sp,r1
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ld.w 0[r1],sp ; load stackpointer
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MOV sp,ep ; set stack pointer to element pointer
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sld.w 0[ep],r1 ; load usCriticalNesting value from stack
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MOVHI hi1(usCriticalNesting),r0,r2
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st.w r1,lw1(usCriticalNesting)[r2]
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sld.w 4[ep],r1 ; restore general purpose registers
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sld.w 8[ep],r2
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#if configDATA_MODE == 1 ; Using Tiny data model
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sld.w 12[ep],r4
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sld.w 16[ep],r5
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sld.w 20[ep],r6
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sld.w 24[ep],r7
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sld.w 28[ep],r8
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sld.w 32[ep],r9
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sld.w 36[ep],r10
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sld.w 40[ep],r11
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sld.w 44[ep],r12
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sld.w 48[ep],r13
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sld.w 52[ep],r14
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sld.w 56[ep],r15
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sld.w 60[ep],r16
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sld.w 64[ep],r17
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sld.w 68[ep],r18
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sld.w 72[ep],r19
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dispose 76,{r20,r21,r22,r23,r24,r25,r26,r27,r28,r29,r30}
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#else ; Using Small/Large data model
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sld.w 12[ep],r5
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sld.w 16[ep],r6
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sld.w 20[ep],r7
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sld.w 24[ep],r8
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sld.w 28[ep],r9
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sld.w 32[ep],r10
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sld.w 36[ep],r11
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sld.w 40[ep],r12
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sld.w 44[ep],r13
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sld.w 48[ep],r14
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sld.w 52[ep],r15
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sld.w 56[ep],r16
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sld.w 60[ep],r17
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sld.w 64[ep],r18
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sld.w 68[ep],r19
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dispose 72,{r20,r21,r22,r23,r24,r26,r27,r28,r29,r30}
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#endif /* configDATA_MODE */
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ld.w 0[sp],lp ; restore EIPSW from stack
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ldsr lp,1
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ld.w 4[sp],lp ; restore EIPC from stack
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ldsr lp,0
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ld.w 8[sp],lp ; restore LP from stack
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add 0x0C,sp ; set SP to right position
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RETI
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ENDM
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