Int32 AVSYNC_LockSharedDataStructure ( Int32* key)
{
if (pAvsyncMPGate && key)
key = GateMP_enter (*pAvsyncMPGate);
return OSA_SOK;
}
/*
* ======== ListMP_putTail ========
*/
Int ListMP_putTail(ListMP_Handle handle, ListMP_Elem *elem)
{
ti_sdo_ipc_ListMP_Object *obj = (ti_sdo_ipc_ListMP_Object *)handle;
UInt key;
UInt16 id;
ListMP_Elem *localPrevElem;
SharedRegion_SRPtr sharedElem;
SharedRegion_SRPtr sharedHead;
Bool localPrevElemIsCached;
/* prevent another thread or processor from modifying the ListMP */
key = GateMP_enter((GateMP_Handle)obj->gate);
id = SharedRegion_getId(elem);
if (ti_sdo_ipc_SharedRegion_translate == FALSE) {
sharedElem = (SharedRegion_SRPtr)elem;
sharedHead = (SharedRegion_SRPtr)&(obj->attrs->head);
localPrevElem = (ListMP_Elem *)obj->attrs->head.prev;
}
else {
sharedElem = SharedRegion_getSRPtr(elem, id);
sharedHead = SharedRegion_getSRPtr(&(obj->attrs->head), obj->regionId);
localPrevElem = SharedRegion_getPtr(obj->attrs->head.prev);
}
/* Assert that pointer is not NULL */
Assert_isTrue(localPrevElem != NULL, ti_sdo_ipc_Ipc_A_nullPointer);
localPrevElemIsCached = SharedRegion_isCacheEnabled(
SharedRegion_getId(localPrevElem));
if (localPrevElemIsCached) {
Cache_inv(localPrevElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
/* add the new elem into the list */
elem->next = sharedHead;
elem->prev = obj->attrs->head.prev;
localPrevElem->next = sharedElem;
obj->attrs->head.prev = sharedElem;
if (localPrevElemIsCached) {
/* Write-back because localPrevElem->next changed */
Cache_wbInv(localPrevElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
if (obj->cacheEnabled) {
/* Write-back because obj->attrs->head.prev changed */
Cache_wbInv(&(obj->attrs->head), sizeof(ListMP_Elem), Cache_Type_ALL,
TRUE);
}
if (SharedRegion_isCacheEnabled(id)) {
/* Write-back because elem->next & elem->prev changed */
Cache_wbInv(elem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
GateMP_leave((GateMP_Handle)obj->gate, key);
return (ListMP_S_SUCCESS);
}
/*
* ======== SemaphoreMP_post ========
*/
Void SemaphoreMP_post(SemaphoreMP_Object *obj)
{
UInt tskKey;
SemaphoreMP_PendElem *elem;
IArg gateMPKey;
Int status;
/* Enter the gate */
gateMPKey = GateMP_enter((GateMP_Handle)obj->gate);
if (ListMP_empty((ListMP_Handle)obj->pendQ)) {
if (obj->mode == SemaphoreMP_Mode_BINARY) {
obj->attrs->count = 1;
}
else {
obj->attrs->count++;
}
if (obj->cacheEnabled) {
Cache_wbInv(obj->attrs, sizeof(SemaphoreMP_Attrs), Cache_Type_ALL,
TRUE);
}
/* Leave the gate */
GateMP_leave((GateMP_Handle)obj->gate, gateMPKey);
return;
}
/* lock task scheduler */
tskKey = Task_disable();
/* dequeue tsk from semaphore queue */
elem = (SemaphoreMP_PendElem *)ListMP_getHead((ListMP_Handle)obj->pendQ);
if (elem->procId != MultiProc_self()) {
/* Unblock remote task */
status = Notify_sendEvent(elem->procId, 0, SemaphoreMP_notifyEventId,
elem->task, TRUE);
Assert_isTrue(status >= 0, ti_sdo_ipc_Ipc_A_internal);
}
else {
/* put task back into readyQ */
Task_unblock((Task_Handle)elem->task);
}
/* Leave the gate */
GateMP_leave((GateMP_Handle)obj->gate, gateMPKey);
Task_restore(tskKey);
}
/*
* ======== ListMP_remove ========
*/
Int ListMP_remove(ListMP_Handle handle, ListMP_Elem *elem)
{
ti_sdo_ipc_ListMP_Object *obj = (ti_sdo_ipc_ListMP_Object *)handle;
UInt key;
ListMP_Elem *localPrevElem;
ListMP_Elem *localNextElem;
Bool localPrevElemIsCached, localNextElemIsCached;
/* Prevent another thread or processor from modifying the ListMP */
key = GateMP_enter((GateMP_Handle)obj->gate);
if (ti_sdo_ipc_SharedRegion_translate == FALSE) {
localPrevElem = (ListMP_Elem *)(elem->prev);
localNextElem = (ListMP_Elem *)(elem->next);
}
else {
localPrevElem = SharedRegion_getPtr(elem->prev);
localNextElem = SharedRegion_getPtr(elem->next);
}
localPrevElemIsCached = SharedRegion_isCacheEnabled(
SharedRegion_getId(localPrevElem));
localNextElemIsCached = SharedRegion_isCacheEnabled(
SharedRegion_getId(localNextElem));
if (localPrevElemIsCached) {
Cache_inv(localPrevElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
if (localNextElemIsCached) {
Cache_inv(localNextElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
localPrevElem->next = elem->next;
localNextElem->prev = elem->prev;
if (localPrevElemIsCached) {
Cache_wbInv(localPrevElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
if (localNextElemIsCached) {
Cache_wbInv(localNextElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
GateMP_leave((GateMP_Handle)obj->gate, key);
return (ListMP_S_SUCCESS);
}
/*
* ======== TransportShm_put ========
* Assuming MessageQ_put is making sure that the arguments are ok
*/
Bool TransportShm_put(TransportShm_Object *obj, Ptr msg)
{
Int32 status;
Bool retval = TRUE;
IArg key;
UInt16 id = SharedRegion_getId(msg);
/* This transport only deals with messages allocated from SR's */
Assert_isTrue(id != SharedRegion_INVALIDREGIONID,
ti_sdo_ipc_SharedRegion_A_regionInvalid);
/* writeback invalidate the message */
if (SharedRegion_isCacheEnabled(id)) {
Cache_wbInv(msg, ((MessageQ_Msg)(msg))->msgSize, Cache_Type_ALL,
TRUE);
}
/* make sure ListMP_put and sendEvent are done before remote executes */
key = GateMP_enter((GateMP_Handle)obj->gate);
/* Put the message on the remoteList */
ListMP_putTail((ListMP_Handle)obj->remoteList, (ListMP_Elem *)msg);
/* Notify the remote processor */
status = Notify_sendEvent(obj->remoteProcId, 0, TransportShm_notifyEventId,
0, FALSE);
/* check the status of the sendEvent */
if (status < 0) {
/* remove the message from the List and return 'FALSE' */
ListMP_remove((ListMP_Handle)obj->remoteList, (ListMP_Elem *)msg);
retval = FALSE;
}
/* leave the gate */
GateMP_leave((GateMP_Handle)obj->gate, key);
return (retval);
}
/*
* ======== ListMP_empty ========
*/
Bool ListMP_empty(ListMP_Handle handle)
{
ti_sdo_ipc_ListMP_Object *obj = (ti_sdo_ipc_ListMP_Object *)handle;
Bool flag = FALSE;
IArg key;
SharedRegion_SRPtr sharedHead;
/* prevent another thread or processor from modifying the ListMP */
key = GateMP_enter((GateMP_Handle)obj->gate);
if (ti_sdo_ipc_SharedRegion_translate == FALSE) {
/* get the SRPtr for the head */
sharedHead = (SharedRegion_SRPtr)&(obj->attrs->head);
}
else {
/* get the SRPtr for the head */
sharedHead = SharedRegion_getSRPtr(&(obj->attrs->head), obj->regionId);
}
/* if 'next' is ourself, then the ListMP must be empty */
if (obj->attrs->head.next == sharedHead) {
flag = TRUE;
}
if (obj->cacheEnabled) {
/* invalidate the head to make sure we are not getting stale data */
Cache_inv(&(obj->attrs->head), sizeof(ListMP_Elem), Cache_Type_ALL,
TRUE);
}
/* leave the gate */
GateMP_leave((GateMP_Handle)obj->gate, key);
return (flag);
}
/*
* ======== ListMP_insert ========
*/
Int ListMP_insert(ListMP_Handle handle, ListMP_Elem *newElem,
ListMP_Elem *curElem)
{
ti_sdo_ipc_ListMP_Object *obj = (ti_sdo_ipc_ListMP_Object *)handle;
UInt key;
Int id;
ListMP_Elem *localPrevElem;
SharedRegion_SRPtr sharedNewElem;
SharedRegion_SRPtr sharedCurElem;
Bool curElemIsCached, localPrevElemIsCached;
/* prevent another thread or processor from modifying the ListMP */
key = GateMP_enter((GateMP_Handle)obj->gate);
if (ti_sdo_ipc_SharedRegion_translate == FALSE) {
sharedNewElem = (SharedRegion_SRPtr)newElem;
sharedCurElem = (SharedRegion_SRPtr)curElem;
localPrevElem = (ListMP_Elem *)(curElem->prev);
}
else {
/* get SRPtr for newElem */
id = SharedRegion_getId(newElem);
sharedNewElem = SharedRegion_getSRPtr(newElem, id);
/* get SRPtr for curElem */
id = SharedRegion_getId(curElem);
sharedCurElem = SharedRegion_getSRPtr(curElem, id);
}
curElemIsCached = SharedRegion_isCacheEnabled(SharedRegion_getId(curElem));
if (curElemIsCached) {
Cache_inv(curElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
/* get Ptr for curElem->prev */
localPrevElem = SharedRegion_getPtr(curElem->prev);
localPrevElemIsCached = SharedRegion_isCacheEnabled(
SharedRegion_getId(localPrevElem));
if (localPrevElemIsCached) {
Cache_inv(localPrevElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
newElem->next = sharedCurElem;
newElem->prev = curElem->prev;
localPrevElem->next = sharedNewElem;
curElem->prev = sharedNewElem;
if (localPrevElemIsCached) {
Cache_wbInv(localPrevElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
/*
* The next two Cache_wbInv needs to be done because curElem
* and newElem are passed in and maybe already in the cache
*/
if (curElemIsCached) {
/* writeback invalidate current elem structure */
Cache_wbInv(curElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
if (SharedRegion_isCacheEnabled(SharedRegion_getId(newElem))) {
/* writeback invalidate new elem structure */
Cache_wbInv(newElem, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
GateMP_leave((GateMP_Handle)obj->gate, key);
return (ListMP_S_SUCCESS);
}
/*
* ======== ListMP_getTail ========
*/
Ptr ListMP_getTail(ListMP_Handle handle)
{
ti_sdo_ipc_ListMP_Object *obj = (ti_sdo_ipc_ListMP_Object *)handle;
ListMP_Elem *elem;
ListMP_Elem *localHeadPrev;
ListMP_Elem *localPrev;
Bool localPrevIsCached;
UInt key;
/* prevent another thread or processor from modifying the ListMP */
key = GateMP_enter((GateMP_Handle)obj->gate);
if (ti_sdo_ipc_SharedRegion_translate == FALSE) {
localHeadPrev = (ListMP_Elem *)obj->attrs->head.prev;
}
else {
localHeadPrev = SharedRegion_getPtr(obj->attrs->head.prev);
}
/* Assert that pointer is not NULL */
Assert_isTrue(localHeadPrev != NULL, ti_sdo_ipc_Ipc_A_nullPointer);
/* See if the ListMP was empty */
if (localHeadPrev == (ListMP_Elem *)(&(obj->attrs->head))) {
/* Empty, return NULL */
elem = NULL;
}
else {
if (SharedRegion_isCacheEnabled(SharedRegion_getId(localHeadPrev))) {
/* invalidate elem */
Cache_inv(localHeadPrev, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
if (ti_sdo_ipc_SharedRegion_translate == FALSE) {
localPrev = (ListMP_Elem *)localHeadPrev->prev;
}
else {
localPrev = SharedRegion_getPtr(localHeadPrev->prev);
}
/* Assert that pointer is not NULL */
Assert_isTrue(localPrev != NULL, ti_sdo_ipc_Ipc_A_nullPointer);
/* Elem to return */
elem = localHeadPrev;
localPrevIsCached = SharedRegion_isCacheEnabled(
SharedRegion_getId(localPrev));
if (localPrevIsCached) {
Cache_inv(localPrev, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
/* Fix the head of the list prev pointer */
obj->attrs->head.prev = elem->prev;
/* Fix the next pointer of the new last elem on the list */
localPrev->next = localHeadPrev->next;
if (localPrevIsCached) {
Cache_wbInv(localPrev, sizeof(ListMP_Elem), Cache_Type_ALL, TRUE);
}
}
if (obj->cacheEnabled) {
Cache_wbInv(&(obj->attrs->head), sizeof(ListMP_Elem),
Cache_Type_ALL, TRUE);
}
GateMP_leave((GateMP_Handle)obj->gate, key);
return (elem);
}
/*
* ======== SemaphoreMP_pend ========
*/
Bool SemaphoreMP_pend(SemaphoreMP_Object *obj)
{
UInt tskKey;
SemaphoreMP_PendElem *elem;
IArg gateMPKey;
/* Check for correct calling context */
Assert_isTrue((BIOS_getThreadType() == BIOS_ThreadType_Task),
SemaphoreMP_A_badContext);
elem = ThreadLocal_getspecific(SemaphoreMP_pendElemKey);
if (elem == NULL) {
/*
* Choose region zero (instead of the region that contains the
* SemaphoreMP) since region zero is always accessible by all cores
*/
elem = Memory_alloc(SharedRegion_getHeap(0),
sizeof(SemaphoreMP_PendElem), 0, NULL);
ThreadLocal_setspecific(SemaphoreMP_pendElemKey, elem);
}
/* Enter the gate */
gateMPKey = GateMP_enter((GateMP_Handle)obj->gate);
if (obj->cacheEnabled) {
Cache_inv(obj->attrs, sizeof(SemaphoreMP_Attrs), Cache_Type_ALL, TRUE);
}
/* check semaphore count */
if (obj->attrs->count == 0) {
/* lock task scheduler */
tskKey = Task_disable();
/* get task handle and block tsk */
elem->task = (Bits32)Task_self();
elem->procId = MultiProc_self();
Task_block((Task_Handle)elem->task);
if (obj->cacheEnabled) {
Cache_wbInv(elem, sizeof(SemaphoreMP_PendElem), Cache_Type_ALL, TRUE);
}
/* add it to pendQ */
ListMP_putTail((ListMP_Handle)obj->pendQ, (ListMP_Elem *)elem);
/* Leave the gate */
GateMP_leave((GateMP_Handle)obj->gate, gateMPKey);
Task_restore(tskKey);/* the calling task will switch out here */
return (TRUE);
}
else {
obj->attrs->count--;
if (obj->cacheEnabled) {
Cache_wbInv(obj->attrs, sizeof(SemaphoreMP_Attrs), Cache_Type_ALL,
TRUE);
}
/* Leave the gate */
GateMP_leave((GateMP_Handle)obj->gate, gateMPKey);
return (TRUE);
}
}
/*
* ======== Server_exec ========
*/
Int Server_exec()
{
Int status;
GateMPApp_Msg * msg;
MessageQ_QueueId queId;
UInt32 physAddr;
volatile UInt32 * intPtr = 0;
Int num = 0;
Int prevNum = 0;
UInt i = 0;
IArg gateKey = 0;
Log_print0(Diags_ENTRY | Diags_INFO, "--> Server_exec:");
/* wait for inbound message */
status = MessageQ_get(Module.slaveQue, (MessageQ_Msg *)&msg,
MessageQ_FOREVER);
if (status < 0) {
goto leave;
}
if (msg->cmd != GATEMPAPP_CMD_SPTR_ADDR) {
status = GATEMPAPP_E_UNEXPECTEDMSG;
goto leave;
}
/* Get physical address of shared memory */
physAddr = msg->payload;
/* translate the physical address to slave virtual addr */
if (Resource_physToVirt(physAddr, (UInt32 *)&intPtr)) {
Log_error1("Server_exec: Failed to translate phys addr %p to virt addr", physAddr);
goto leave;
}
/* send message back */
queId = MessageQ_getReplyQueue(msg); /* type-cast not needed */
msg->cmd = GATEMPAPP_CMD_SPTR_ADDR_ACK;
MessageQ_put(queId, (MessageQ_Msg)msg);
Log_print0(Diags_INFO,"Server_exec: Modifying shared variable "
"value");
/* open host-created GateMP */
do {
status = GateMP_open(GATEMP_HOST_NAME, &Module.hostGateMPHandle);
} while (status == GateMP_E_NOTFOUND);
if (status < 0) {
Log_error0("Server_exec: Failed to open host-created GateMP");
status = GATEMPAPP_E_FAILURE;
goto leave;
}
Log_print0(Diags_INFO,"Server_exec: Opened GateMP successfully");
Log_print0(Diags_INFO,"Server_exec: Using host-created gate");
for (i = 0;i < LOOP_ITR; i++) {
/* modify the shared variable as long as no one else is currently
* accessing it
*/
/* enter GateMP */
gateKey = GateMP_enter(Module.hostGateMPHandle);
/* read shared variable value */
prevNum = *intPtr;
/* randomly modify the shared variable */
if ( rand() % 2) {
*intPtr -= 1;
}
else {
*intPtr += 1;
}
/* read shared variable value again */
num = *intPtr;
if ((prevNum != num + 1) && (prevNum != num - 1)) {
Log_print0(Diags_INFO, "Server_exec: unexpected variable value." \
"Test failed.");
Log_print2(Diags_INFO, "Server_exec: Previous shared variable "
"value %d, current value=%d", prevNum, num);
status = GATEMPAPP_E_FAILURE;
goto leave;
}
/* leave Gate */
GateMP_leave(Module.hostGateMPHandle, gateKey);
}
/* wait for sync message before we switch gates */
status = MessageQ_get(Module.slaveQue, (MessageQ_Msg *)&msg,
MessageQ_FOREVER);
if (status < 0) {
goto leave;
}
if (msg->cmd != GATEMPAPP_CMD_SYNC) {
status = GATEMPAPP_E_UNEXPECTEDMSG;
goto leave;
}
queId = MessageQ_getReplyQueue(msg);
MessageQ_put(queId, (MessageQ_Msg)msg);
Log_print0(Diags_INFO,"Server_exec: Using slave-created gate");
for (i = 0;i < LOOP_ITR; i++) {
/* modify the shared variable as long as no one else is currently
* accessing it
*/
/* enter GateMP */
gateKey = GateMP_enter(Module.slaveGateMPHandle);
/* read shared variable value */
prevNum = *intPtr;
/* randomly modify the shared variable */
if ( rand() % 2) {
*intPtr -= 1;
}
else {
*intPtr += 1;
}
/* read shared variable value again */
num = *intPtr;
if ((prevNum != num - 1) && (prevNum != num + 1)) {
Log_print0(Diags_INFO, "Server_exec: unexpected variable value." \
"Test failed.");
Log_print2(Diags_INFO, "Server_exec: Previous "
"value=%d, current value=%d", prevNum, num);
status = GATEMPAPP_E_FAILURE;
goto leave;
}
/* leave Gate */
GateMP_leave(Module.slaveGateMPHandle, gateKey);
}
leave:
/* close host GateMP */
if (Module.hostGateMPHandle) {
GateMP_close(&Module.hostGateMPHandle);
}
Log_print0(Diags_ENTRY, "Server_exec: host GateMP closed");
Log_print1(Diags_EXIT, "<-- Server_exec: %d", (IArg)status);
return(status);
}