1 /* 2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved. 3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without modification, 6 * are permitted provided that the following conditions are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright notice, this list of 9 * conditions and the following disclaimer. 10 * 11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list 12 * of conditions and the following disclaimer in the documentation and/or other materials 13 * provided with the distribution. 14 * 15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used 16 * to endorse or promote products derived from this software without specific prior written 17 * permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _LOS_HW_PRI_H 33 #define _LOS_HW_PRI_H 34 35 #include "los_base.h" 36 #include "los_hw.h" 37 38 #ifdef __cplusplus 39 #if __cplusplus 40 extern "C" { 41 #endif /* __cplusplus */ 42 #endif /* __cplusplus */ 43 44 #if defined(LOSCFG_ARCH_FPU_VFP_D16) 45 #define FP_REGS_NUM 16 46 #elif defined (LOSCFG_ARCH_FPU_VFP_D32) 47 #define FP_REGS_NUM 32 48 #endif 49 #define GEN_REGS_NUM 13 50 51 /* The size of this structure must be smaller than or equal to the size specified by OS_TSK_STACK_ALIGN (16 bytes). */ 52 typedef struct { 53 #if !defined(LOSCFG_ARCH_FPU_DISABLE) 54 UINT64 D[FP_REGS_NUM]; /* D0-D31 */ 55 UINT32 regFPSCR; /* FPSCR */ 56 UINT32 regFPEXC; /* FPEXC */ 57 #endif 58 UINT32 R4; 59 UINT32 R5; 60 UINT32 R6; 61 UINT32 R7; 62 UINT32 R8; 63 UINT32 R9; 64 UINT32 R10; 65 UINT32 R11; 66 67 /* It has the same structure as IrqContext */ 68 UINT32 reserved2; /**< Multiplexing registers, used in interrupts and system calls but with different meanings */ 69 UINT32 reserved1; /**< Multiplexing registers, used in interrupts and system calls but with different meanings */ 70 UINT32 USP; /**< User mode sp register */ 71 UINT32 ULR; /**< User mode lr register */ 72 UINT32 R0; 73 UINT32 R1; 74 UINT32 R2; 75 UINT32 R3; 76 UINT32 R12; 77 UINT32 LR; 78 UINT32 PC; 79 UINT32 regCPSR; 80 } TaskContext; 81 82 typedef struct { 83 UINT32 reserved2; /**< Multiplexing registers, used in interrupts and system calls but with different meanings */ 84 UINT32 reserved1; /**< Multiplexing registers, used in interrupts and system calls but with different meanings */ 85 UINT32 USP; /**< User mode sp register */ 86 UINT32 ULR; /**< User mode lr register */ 87 UINT32 R0; 88 UINT32 R1; 89 UINT32 R2; 90 UINT32 R3; 91 UINT32 R12; 92 UINT32 LR; 93 UINT32 PC; 94 UINT32 regCPSR; 95 } IrqContext; 96 97 /* 98 * Description : task stack initialization 99 * Input : taskID -- task ID 100 * stackSize -- task stack size 101 * topStack -- stack top of task (low address) 102 * Return : pointer to the task context 103 */ 104 extern VOID *OsTaskStackInit(UINT32 taskID, UINT32 stackSize, VOID *topStack, BOOL initFlag); 105 extern VOID OsUserCloneParentStack(VOID *childStack, UINTPTR parentTopOfStask, UINT32 parentStackSize); 106 extern VOID OsUserTaskStackInit(TaskContext *context, UINTPTR taskEntry, UINTPTR stack); 107 extern VOID OsInitSignalContext(const VOID *sp, VOID *signalContext, UINTPTR sigHandler, UINT32 signo, UINT32 param); 108 extern void arm_clean_cache_range(UINTPTR start, UINTPTR end); 109 extern void arm_inv_cache_range(UINTPTR start, UINTPTR end); 110 111 #ifdef __cplusplus 112 #if __cplusplus 113 } 114 #endif /* __cplusplus */ 115 #endif /* __cplusplus */ 116 117 #endif /* _LOS_HW_PRI_H */ 118