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openharmony_kernel_liteos_m/arch/arm/arm9/gcc/los_interrupt.c

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/*
* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "los_interrupt.h"
#include <stdarg.h>
#include "securec.h"
#include "los_context.h"
#include "los_arch_interrupt.h"
#include "los_debug.h"
#include "los_hook.h"
#include "los_task.h"
#include "los_sched.h"
#include "los_memory.h"
#include "los_membox.h"
#include "los_reg.h"
#define OS_INT_IRQ_ENABLE (1U << 0)
#define OS_INT_FIQ_ENABLE (1U << 1)
#define OS_INT_REG_BASE 0x00802040UL
#define OS_INT_GLOBAL_ENABLE_ADDR (OS_INT_REG_BASE + 4)
#define OS_INT_ENABLE_ADDR (OS_INT_REG_BASE)
#define OS_INT_STATUS_ADDR (OS_INT_REG_BASE + 12)
#define OS_INSTR_SET_MASK 0x01000020U
#define OS_ARM_INSTR_LEN 4
#define OS_THUMB_INSTR_LEN 2
UINT32 g_intCount = 0;
ExcInfo g_excInfo = {0};
/* *
* @ingroup los_hwi
* hardware interrupt form mapping handling function array.
*/
STATIC HWI_PROC_FUNC g_hwiForm[OS_VECTOR_CNT] = {0};
#if (LOSCFG_PLATFORM_HWI_WITH_ARG == 1)
typedef struct {
HWI_PROC_FUNC pfnHandler;
VOID *pParm;
} HWI_HANDLER_FUNC;
/* *
* @ingroup los_hwi
* hardware interrupt handler form mapping handling function array.
*/
STATIC HWI_HANDLER_FUNC g_hwiHandlerForm[OS_VECTOR_CNT] = {{ (HWI_PROC_FUNC)0, (HWI_ARG_T)0 }};
/* *
* @ingroup los_hwi
* Set interrupt vector table.
*/
VOID OsSetVector(UINT32 num, HWI_PROC_FUNC vector, VOID *arg)
{
if ((num + OS_SYS_VECTOR_CNT) < OS_VECTOR_CNT) {
g_hwiForm[num + OS_SYS_VECTOR_CNT] = (HWI_PROC_FUNC)HalInterrupt;
g_hwiHandlerForm[num + OS_SYS_VECTOR_CNT].pfnHandler = vector;
g_hwiHandlerForm[num + OS_SYS_VECTOR_CNT].pParm = arg;
}
}
#else
/* *
* @ingroup los_hwi
* hardware interrupt handler form mapping handling function array.
*/
STATIC HWI_PROC_FUNC g_hwiHandlerForm[OS_VECTOR_CNT] = {0};
/* *
* @ingroup los_hwi
* Set interrupt vector table.
*/
VOID OsSetVector(UINT32 num, HWI_PROC_FUNC vector)
{
if ((num + OS_SYS_VECTOR_CNT) < OS_VECTOR_CNT) {
g_hwiForm[num + OS_SYS_VECTOR_CNT] = HalInterrupt;
g_hwiHandlerForm[num + OS_SYS_VECTOR_CNT] = vector;
}
}
#endif
/* ****************************************************************************
Function : HwiNumGet
Description : Get an interrupt number
Input : None
Output : None
Return : Interrupt Indexes number
**************************************************************************** */
STATIC UINT32 HwiNumGet(VOID)
{
UINT32 status;
READ_UINT32(status, OS_INT_STATUS_ADDR);
return (31 - CLZ(status));
}
STATIC UINT32 HwiUnmask(HWI_HANDLE_T hwiNum)
{
if (hwiNum >= OS_HWI_MAX_NUM) {
return OS_ERRNO_HWI_NUM_INVALID;
}
*((volatile UINT32 *)OS_INT_ENABLE_ADDR) |= (1U << (hwiNum));
return LOS_OK;
}
STATIC UINT32 HwiMask(HWI_HANDLE_T hwiNum)
{
if (hwiNum >= OS_HWI_MAX_NUM) {
return OS_ERRNO_HWI_NUM_INVALID;
}
*((volatile UINT32 *)OS_INT_ENABLE_ADDR) &= ~(1U << (hwiNum));
return LOS_OK;
}
HwiControllerOps g_archHwiOps = {
.enableIrq = HwiUnmask,
.disableIrq = HwiMask,
.getCurIrqNum = HwiNumGet,
};
inline UINT32 ArchIsIntActive(VOID)
{
return (g_intCount > 0);
}
/* ****************************************************************************
Function : HalHwiDefaultHandler
Description : default handler of the hardware interrupt
Input : None
Output : None
Return : None
**************************************************************************** */
LITE_OS_SEC_TEXT_MINOR VOID HalHwiDefaultHandler(VOID)
{
PRINT_ERR("%s irqnum:%u\n", __FUNCTION__, HwiNumGet());
while (1) {}
}
WEAK VOID HalPreInterruptHandler(UINT32 arg)
{
(VOID)arg;
return;
}
WEAK VOID HalAftInterruptHandler(UINT32 arg)
{
(VOID)arg;
return;
}
/* ****************************************************************************
Function : HalInterrupt
Description : Hardware interrupt entry function
Input : None
Output : None
Return : None
**************************************************************************** */
LITE_OS_SEC_TEXT VOID HalInterrupt(VOID)
{
UINT32 intSave;
UINT32 hwiIndex;
intSave = LOS_IntLock();
g_intCount++;
LOS_IntRestore(intSave);
#if (LOSCFG_BASE_CORE_SCHED_SLEEP == 1)
OsSchedUpdateSleepTime();
#endif
hwiIndex = HwiNumGet();
OsHookCall(LOS_HOOK_TYPE_ISR_ENTER, hwiIndex);
HalPreInterruptHandler(hwiIndex);
#if (LOSCFG_PLATFORM_HWI_WITH_ARG == 1)
if (g_hwiHandlerForm[hwiIndex].pfnHandler != 0) {
g_hwiHandlerForm[hwiIndex].pfnHandler((VOID *)g_hwiHandlerForm[hwiIndex].pParm);
}
#else
if (g_hwiHandlerForm[hwiIndex] != 0) {
g_hwiHandlerForm[hwiIndex]();
}
#endif
HalAftInterruptHandler(hwiIndex);
OsHookCall(LOS_HOOK_TYPE_ISR_EXIT, hwiIndex);
intSave = LOS_IntLock();
g_intCount--;
LOS_IntRestore(intSave);
}
/* ****************************************************************************
Function : ArchHwiCreate
Description : create hardware interrupt
Input : hwiNum --- hwi num to create
hwiPrio --- priority of the hwi
hwiMode --- unused
hwiHandler --- hwi handler
irqParam --- param of the hwi handler
Output : None
Return : LOS_OK on success or error code on failure
**************************************************************************** */
LITE_OS_SEC_TEXT_INIT UINT32 ArchHwiCreate(HWI_HANDLE_T hwiNum,
HWI_PRIOR_T hwiPrio,
HWI_MODE_T hwiMode,
HWI_PROC_FUNC hwiHandler,
HwiIrqParam *irqParam)
{
(VOID)hwiMode;
UINT32 intSave;
if (hwiHandler == NULL) {
return OS_ERRNO_HWI_PROC_FUNC_NULL;
}
if (hwiNum >= OS_HWI_MAX_NUM) {
return OS_ERRNO_HWI_NUM_INVALID;
}
if (g_hwiForm[hwiNum + OS_SYS_VECTOR_CNT] != (HWI_PROC_FUNC)HalHwiDefaultHandler) {
return OS_ERRNO_HWI_ALREADY_CREATED;
}
intSave = LOS_IntLock();
#if (LOSCFG_PLATFORM_HWI_WITH_ARG == 1)
if (irqParam != NULL) {
OsSetVector(hwiNum, hwiHandler, irqParam->pDevId);
} else {
OsSetVector(hwiNum, hwiHandler, NULL);
}
#else
(VOID)irqParam;
OsSetVector(hwiNum, hwiHandler);
#endif
HwiUnmask(hwiNum);
LOS_IntRestore(intSave);
return LOS_OK;
}
/* ****************************************************************************
Function : ArchHwiDelete
Description : Delete hardware interrupt
Input : hwiNum --- hwi num to delete
irqParam --- param of the hwi handler
Output : None
Return : LOS_OK on success or error code on failure
**************************************************************************** */
LITE_OS_SEC_TEXT_INIT UINT32 ArchHwiDelete(HWI_HANDLE_T hwiNum, HwiIrqParam *irqParam)
{
(VOID)irqParam;
UINT32 intSave;
if (hwiNum >= OS_HWI_MAX_NUM) {
return OS_ERRNO_HWI_NUM_INVALID;
}
HwiMask(hwiNum);
intSave = LOS_IntLock();
g_hwiForm[hwiNum + OS_SYS_VECTOR_CNT] = (HWI_PROC_FUNC)HalHwiDefaultHandler;
LOS_IntRestore(intSave);
return LOS_OK;
}
#if (LOSCFG_KERNEL_PRINTF != 0)
STATIC VOID OsExcTypeInfo(const ExcInfo *excInfo)
{
CHAR *phaseStr[] = {"exc in init", "exc in task", "exc in hwi"};
PRINTK("Type = %d\n", excInfo->type);
PRINTK("ThrdPid = %d\n", excInfo->thrdPid);
PRINTK("Phase = %s\n", phaseStr[excInfo->phase]);
PRINTK("FaultAddr = 0x%x\n", excInfo->faultAddr);
}
STATIC VOID OsExcCurTaskInfo(const ExcInfo *excInfo)
{
PRINTK("Current task info:\n");
if (excInfo->phase == OS_EXC_IN_TASK) {
LosTaskCB *taskCB = OS_TCB_FROM_TID(LOS_CurTaskIDGet());
PRINTK("Task name = %s\n", taskCB->taskName);
PRINTK("Task ID = %d\n", taskCB->taskID);
PRINTK("Task SP = 0x%x\n", taskCB->stackPointer);
PRINTK("Task ST = 0x%x\n", taskCB->topOfStack);
PRINTK("Task SS = 0x%x\n", taskCB->stackSize);
} else if (excInfo->phase == OS_EXC_IN_HWI) {
PRINTK("Exception occur in interrupt phase!\n");
} else {
PRINTK("Exception occur in system init phase!\n");
}
}
STATIC VOID OsExcRegInfo(const ExcInfo *excInfo)
{
PRINTK("Exception reg dump:\n");
PRINTK("PC = 0x%x\n", excInfo->context->pc);
PRINTK("LR = 0x%x\n", excInfo->context->lr);
PRINTK("R0 = 0x%x\n", excInfo->context->r0);
PRINTK("R1 = 0x%x\n", excInfo->context->r1);
PRINTK("R2 = 0x%x\n", excInfo->context->r2);
PRINTK("R3 = 0x%x\n", excInfo->context->r3);
PRINTK("R4 = 0x%x\n", excInfo->context->r4);
PRINTK("R5 = 0x%x\n", excInfo->context->r5);
PRINTK("R6 = 0x%x\n", excInfo->context->r6);
PRINTK("R7 = 0x%x\n", excInfo->context->r7);
PRINTK("R8 = 0x%x\n", excInfo->context->r8);
PRINTK("R9 = 0x%x\n", excInfo->context->r9);
PRINTK("R10 = 0x%x\n", excInfo->context->r10);
PRINTK("R11 = 0x%x\n", excInfo->context->r11);
PRINTK("R12 = 0x%x\n", excInfo->context->r12);
PRINTK("xPSR = 0x%x\n", excInfo->context->spsr);
}
#if (LOSCFG_KERNEL_BACKTRACE == 1)
STATIC VOID OsExcBackTraceInfo(const ExcInfo *excInfo)
{
UINTPTR LR[LOSCFG_BACKTRACE_DEPTH] = {0};
UINT32 index;
OsBackTraceHookCall(LR, LOSCFG_BACKTRACE_DEPTH, 0, excInfo->context->sp);
PRINTK("----- backtrace start -----\n");
for (index = 0; index < LOSCFG_BACKTRACE_DEPTH; index++) {
if (LR[index] == 0) {
break;
}
PRINTK("backtrace %d -- lr = 0x%x\n", index, LR[index]);
}
PRINTK("----- backtrace end -----\n");
}
#endif
STATIC VOID OsExcMemPoolCheckInfo(VOID)
{
PRINTK("\r\nmemory pools check:\n");
#if (LOSCFG_PLATFORM_EXC == 1)
MemInfoCB memExcInfo[OS_SYS_MEM_NUM];
UINT32 errCnt;
UINT32 i;
(VOID)memset_s(memExcInfo, sizeof(memExcInfo), 0, sizeof(memExcInfo));
errCnt = OsMemExcInfoGet(OS_SYS_MEM_NUM, memExcInfo);
if (errCnt < OS_SYS_MEM_NUM) {
errCnt += OsMemboxExcInfoGet(OS_SYS_MEM_NUM - errCnt, memExcInfo + errCnt);
}
if (errCnt == 0) {
PRINTK("all memory pool check passed!\n");
return;
}
for (i = 0; i < errCnt; i++) {
PRINTK("pool num = %d\n", i);
PRINTK("pool type = %d\n", memExcInfo[i].type);
PRINTK("pool addr = 0x%x\n", memExcInfo[i].startAddr);
PRINTK("pool size = 0x%x\n", memExcInfo[i].size);
PRINTK("pool free = 0x%x\n", memExcInfo[i].free);
PRINTK("pool blkNum = %d\n", memExcInfo[i].blockSize);
PRINTK("pool error node addr = 0x%x\n", memExcInfo[i].errorAddr);
PRINTK("pool error node len = 0x%x\n", memExcInfo[i].errorLen);
PRINTK("pool error node owner = %d\n", memExcInfo[i].errorOwner);
}
#endif
UINT32 ret = LOS_MemIntegrityCheck(LOSCFG_SYS_HEAP_ADDR);
if (ret == LOS_OK) {
PRINTK("system heap memcheck over, all passed!\n");
}
PRINTK("memory pool check end!\n");
}
#endif
STATIC VOID OsExcInfoDisplay(const ExcInfo *excInfo)
{
#if (LOSCFG_KERNEL_PRINTF != 0)
PRINTK("*************Exception Information**************\n");
OsExcTypeInfo(excInfo);
OsExcCurTaskInfo(excInfo);
OsExcRegInfo(excInfo);
#if (LOSCFG_KERNEL_BACKTRACE == 1)
OsExcBackTraceInfo(excInfo);
#endif
OsGetAllTskInfo();
OsExcMemPoolCheckInfo();
#endif
}
LITE_OS_SEC_TEXT_INIT VOID HalExcHandleEntry(UINT32 excType, UINT32 faultAddr, UINT32 pid, EXC_CONTEXT_S *excBufAddr)
{
g_intCount++;
g_excInfo.nestCnt++;
g_excInfo.type = excType;
if ((excType == OS_EXCEPT_UNDEF_INSTR) || (excType == OS_EXCEPT_SWI)) {
if ((excBufAddr->spsr & OS_INSTR_SET_MASK) == 0) { /* Work status: ARM */
excBufAddr->pc -= OS_ARM_INSTR_LEN;
} else if ((excBufAddr->spsr & OS_INSTR_SET_MASK) == 0x20) { /* Work status: Thumb */
excBufAddr->pc -= OS_THUMB_INSTR_LEN;
}
}
g_excInfo.faultAddr = OS_EXC_IMPRECISE_ACCESS_ADDR;
if (g_losTask.runTask != NULL) {
g_excInfo.phase = OS_EXC_IN_TASK;
g_excInfo.thrdPid = g_losTask.runTask->taskID;
} else {
g_excInfo.phase = OS_EXC_IN_INIT;
g_excInfo.thrdPid = OS_NULL_INT;
}
g_excInfo.context = excBufAddr;
OsDoExcHook(EXC_INTERRUPT);
OsExcInfoDisplay(&g_excInfo);
ArchSysExit();
}
/* ****************************************************************************
Function : HalHwiInit
Description : initialization of the hardware interrupt
Input : None
Output : None
Return : None
**************************************************************************** */
LITE_OS_SEC_TEXT_INIT VOID HalHwiInit(VOID)
{
#if (LOSCFG_USE_SYSTEM_DEFINED_INTERRUPT == 1)
UINT32 reg;
UINT32 val;
for (val = OS_SYS_VECTOR_CNT; val < OS_VECTOR_CNT; val++) {
#if (LOSCFG_PLATFORM_HWI_WITH_ARG == 1)
g_hwiForm[val].pfnHook = HalHwiDefaultHandler;
g_hwiForm[val].uwParam = 0;
#else
g_hwiForm[val] = (HWI_PROC_FUNC)HalHwiDefaultHandler;
#endif
}
val = OS_INT_IRQ_ENABLE | OS_INT_FIQ_ENABLE;
READ_UINT32(reg, OS_INT_GLOBAL_ENABLE_ADDR);
reg |= val;
WRITE_UINT32(reg, OS_INT_GLOBAL_ENABLE_ADDR);
#endif
return;
}
UINT32 ArchIntLock(VOID)
{
UINT32 ret;
UINT32 temp;
__asm__ __volatile__("MRS %0, CPSR\n"
"ORR %1, %0, #0xC0\n"
"MSR CPSR_c, %1"
: "=r"(ret), "=r"(temp)
:
: "memory");
return ret;
}
VOID ArchIntRestore(UINT32 intSave)
{
__asm__ __volatile__("MSR CPSR_c, %0" : : "r"(intSave));
}
UINT32 ArchIntUnLock(VOID)
{
UINT32 intSave;
__asm__ __volatile__("MRS %0, CPSR\n"
"BIC %0, %0, #0xC0\n"
"MSR CPSR_c, %0"
: "=r"(intSave)
:
: "memory");
return intSave;
}
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