/*!
******************************************************************************
@Function POOL_PoolCreate
******************************************************************************/
IMG_RESULT POOL_PoolCreate(
IMG_HANDLE * phPoolHandle
)
{
POOL_sResPool * psResPool;
IMG_UINT32 ui32Result;
IMG_ASSERT(gInitialised);
/* Allocate a pool structure...*/
psResPool = IMG_MALLOC(sizeof(*psResPool));
IMG_ASSERT(psResPool != IMG_NULL);
if (psResPool == IMG_NULL)
{
return IMG_ERROR_OUT_OF_MEMORY;
}
IMG_MEMSET(psResPool, 0, sizeof(*psResPool));
/* Initialise the pool info...*/
LST_init(&psResPool->sFreeResList);
LST_init(&psResPool->sActResList);
/* Create mutex...*/
ui32Result = SYSOSKM_CreateMutex(&psResPool->hMutexHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_create_mutex;
}
/* Create context for the Id generator...*/
ui32Result = IDGEN_CreateContext(POOL_IDGEN_MAX_ID, POOL_IDGEN_BLOCK_SIZE,IMG_FALSE, &psResPool->hIdGenHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_create_context;
}
/* Disable interrupts. */
SYSOSKM_DisableInt();
/* Add to list of pools...*/
LST_add(&gsPoolList, psResPool);
/* Enable interrupts. */
SYSOSKM_EnableInt();
/* Return handle to pool...*/
*phPoolHandle = psResPool;
return IMG_SUCCESS;
/* Error handling. */
error_create_context:
SYSOSKM_DestroyMutex(psResPool->hMutexHandle);
error_create_mutex:
IMG_FREE(psResPool);
return ui32Result;
}
/*!
******************************************************************************
@Function VDECDDUTILS_CreateStrUnit
@Description this function allocate a structure for a complete data unit
******************************************************************************/
IMG_RESULT VDECDDUTILS_CreateStrUnit(
VDECDD_sStrUnit ** ppsStrUnit,
LST_T * sBSList
)
{
VDECDD_sStrUnit * psStrUnit;
BSPP_sBitStrSeg * psBitStrSeg;
VDEC_MALLOC(psStrUnit);
IMG_ASSERT(psStrUnit != IMG_NULL);
if (psStrUnit == IMG_NULL)
{
return IMG_ERROR_OUT_OF_MEMORY;
}
VDEC_BZERO(psStrUnit);
if (sBSList != IMG_NULL)
{
// copy BS list to this list
LST_init(&psStrUnit->sBitStrSegList);
for ( psBitStrSeg = LST_first( sBSList); psBitStrSeg != NULL; psBitStrSeg = LST_first(sBSList) )
{
psBitStrSeg = LST_removeHead(sBSList);
LST_add(&psStrUnit->sBitStrSegList,psBitStrSeg);
}
}
*ppsStrUnit = psStrUnit;
return IMG_SUCCESS;
}
/*!
******************************************************************************
@Function SYSDEVU_Initialise
******************************************************************************/
IMG_RESULT SYSDEVU_Initialise(IMG_VOID)
{
/* If not initialised...*/
if (!gSysDevInitialised)
{
IMG_RESULT eResult;
eResult = SYSOSKM_CreateAtomic(&gsActiveOpenCnt);
IMG_ASSERT(eResult == IMG_SUCCESS);
if (eResult != IMG_SUCCESS)
{
return eResult;
}
LST_init(&gsDevList);
eResult = SYSOSKM_CreateMutex(&hNextDeviceIdMutex);
IMG_ASSERT(eResult == IMG_SUCCESS);
if (eResult != IMG_SUCCESS)
{
return eResult;
}
/* use a magic number to help detect dereferences of
DeviceId when (wrongly) casted as a pointer */
gui32NextDeviceId = 0xbeef00;
/* Now we are initialised...*/
gSysDevInitialised = IMG_TRUE;
}
return IMG_SUCCESS;
}
/*!
******************************************************************************
@Function POOL_Initialise
******************************************************************************/
IMG_RESULT POOL_Initialise(IMG_VOID)
{
/* Disable interrupts. */
SYSOSKM_DisableInt();
/* If not initialised...*/
if (!gInitialised)
{
/* Initialise the list of pools. */
LST_init(&gsPoolList);
/* Set initialised flag...*/
gInitialised = IMG_TRUE;
}
/* Enable interrupts. */
SYSOSKM_EnableInt();
/* Return success...*/
return IMG_SUCCESS;
}
/*!
******************************************************************************
@Function VDECDDUTILS_CreateStrUnitOld
@Description this function allocate a structure for a complete data unit
******************************************************************************/
IMG_RESULT VDECDDUTILS_CreateStrUnitOld(
VDECDD_sStrUnit ** ppsStrUnit,
BSPP_sSequHdrInfo * psSeqInfo,
BSPP_sPictHdrInfo * psPicInfo,
LST_T * sBSList
)
{
VDECDD_sStrUnit * psStrUnit;
BSPP_sBitStrSeg * psBitStrSeg;
VDEC_MALLOC(psStrUnit);
IMG_ASSERT(psStrUnit != IMG_NULL);
if (psStrUnit == IMG_NULL)
{
return IMG_ERROR_OUT_OF_MEMORY;
}
VDEC_BZERO(psStrUnit);
if (sBSList != IMG_NULL)
{
// copy BS list to this list
LST_init(&psStrUnit->sBitStrSegList);
for ( psBitStrSeg = LST_first( sBSList); psBitStrSeg != NULL; psBitStrSeg = LST_first(sBSList) )
{
psBitStrSeg = LST_removeHead(sBSList);
LST_add(&psStrUnit->sBitStrSegList,psBitStrSeg);
}
}
if(psSeqInfo !=IMG_NULL)
{
psStrUnit->psSequHdrInfo = psSeqInfo;
psStrUnit->psSequHdrInfo->ui32RefCount = 1;
}
psStrUnit->psPictHdrInfo = psPicInfo;
*ppsStrUnit = psStrUnit;
return IMG_SUCCESS;
}
/*!
******************************************************************************
@Function perflog_InitialiseFile
@Description
Initialises new file in performance logger directory.
@Output pFileHandler : file to be initialised
@Input pszFileName : name of created file
@Input psPerfLogDir : directory where new file will be stored
@Return IMG_SUCCESS in case when file has been initialised successfully,
error code otherwise
******************************************************************************/
static IMG_RESULT perflog_InitialiseFile(
perflog_FileHandler *pFileHandler,
const IMG_CHAR *pszFileName,
struct dentry *psPerfLogDir
)
{
if(pFileHandler == NULL || pszFileName == NULL || psPerfLogDir == NULL)
{
REPORT(REPORT_MODULE_PERFLOG, REPORT_ERR,
"Performance logger cannot create buffer: invalid parameters");
return IMG_ERROR_INVALID_PARAMETERS;
}
//creates mutex that sync access to list of buffers
if( SYSOSKM_CreateMutex(&pFileHandler->hMutexHandle) != IMG_SUCCESS)
{
REPORT(REPORT_MODULE_PERFLOG, REPORT_ERR,
"Performance logger cannot create internal mutex");
return IMG_ERROR_FATAL;
}
//initialises list of buffers
LST_init(&pFileHandler->sBufferList);
//creates new file in debug file system
pFileHandler->psFile = debugfs_create_file(pszFileName, 0644, psPerfLogDir, NULL, &perflog_FileOps);
IMG_ASSERT(pFileHandler->psFile != IMG_NULL);
if(pFileHandler->psFile == IMG_NULL)
{
SYSOSKM_DestroyMutex(pFileHandler->hMutexHandle);
REPORT(REPORT_MODULE_PERFLOG, REPORT_ERR,
"Performance logger cannot create file in debug file system");
return IMG_ERROR_FATAL;
}
return IMG_SUCCESS;
}
/*!
******************************************************************************
@Function DMANKM_RegisterDevice
******************************************************************************/
IMG_RESULT DMANKM_RegisterDevice(IMG_CHAR * pszDeviceName,
DMANKM_pfnDevRegister pfnDevRegister)
{
DMANKM_sDevContext * psDevContext;
IMG_UINT32 ui32Result;
/* If the device context list is not initialised...*/
if (!gbDevListInitialised) {
/* Initialise the device context list...*/
LST_init(&gsDevList);
gbDevListInitialised = IMG_TRUE;
}
/* Locate the device - ensure it's not registered twice...*/
ui32Result = DMANKM_LocateDevice(pszDeviceName,
(IMG_HANDLE *) &psDevContext);
if (ui32Result != IMG_ERROR_DEVICE_NOT_FOUND) {
IMG_ASSERT(ui32Result == IMG_ERROR_DEVICE_NOT_FOUND);
return IMG_ERROR_GENERIC_FAILURE;
}
/* Allocate a device context structure...*/
psDevContext = IMG_MALLOC(sizeof(*psDevContext));
if (psDevContext == IMG_NULL )
{
IMG_ASSERT(psDevContext != IMG_NULL);
return IMG_ERROR_OUT_OF_MEMORY;
}
IMG_MEMSET(psDevContext, 0, sizeof(*psDevContext));
/* Setup the device context...*/
psDevContext->ui32DeviceId = gui32NextDeviceID;
gui32NextDeviceID++;
psDevContext->pszDeviceName = IMG_STRDUP(pszDeviceName);
if (psDevContext->pszDeviceName == IMG_NULL )
{
IMG_ASSERT(psDevContext->pszDeviceName != IMG_NULL);
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_dev_name;
}
psDevContext->pfnDevRegister = pfnDevRegister;
psDevContext->ui8ApmPpmFlags = 0;
ui32Result = SYSOSKM_CreateMutex(&psDevContext->hMutexHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_create_mutex;
}
LST_init(&psDevContext->sConnList);
/* Disable interrupts...*/
SYSOSKM_DisableInt();
/* Add device to list...*/
LST_add(&gsDevList, psDevContext);
/* Re-enable interrupts...*/
SYSOSKM_EnableInt();
/* If initialised...*/
if (gDmanKmInitialised) {
/* Call device registration function...*/
ui32Result = psDevContext->pfnDevRegister(&psDevContext->sDevRegister);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_dev_register;
}
/* Set default if required...*/
if (psDevContext->sDevRegister.ui32ConnFlags == 0) {
psDevContext->sDevRegister.ui32ConnFlags = DMAN_CFLAG_EXCLUSIVE;
}
}
/* Return success...*/
return IMG_SUCCESS;
/* Error handling. */
error_dev_register: SYSOSKM_DisableInt();
LST_remove(&gsDevList, psDevContext);
SYSOSKM_EnableInt();
SYSOSKM_DestroyMutex(psDevContext->hMutexHandle);
error_create_mutex:
IMG_FREE(psDevContext->pszDeviceName);
error_dev_name:
IMG_FREE(psDevContext);
return ui32Result;
}
/*!
******************************************************************************
@Function DMANKM_OpenDevice
******************************************************************************/
IMG_RESULT DMANKM_OpenDevice(IMG_HANDLE hDevHandle, DMAN_eOpenMode eOpenMode,
IMG_HANDLE * phConnHandle, IMG_UINT32 * pui32ConnId)
{
DMANKM_sDevContext * psDevContext = (DMANKM_sDevContext *) hDevHandle;
DMANKM_sConnContext * psConnContext;
DMANKM_sConnContext * psInitConnContext = IMG_NULL;
IMG_UINT32 ui32Result;
IMG_HANDLE hProcessId;
/* Check mode. */
if ((eOpenMode != DMAN_OMODE_EXCLUSIVE)
&& (eOpenMode != DMAN_OMODE_SHARED)) {
IMG_ASSERT(IMG_FALSE);
return IMG_ERROR_INVALID_PARAMETERS;
}
/* Loop over the device connections to see if this process already has a connection...*/
hProcessId = SYSOSKM_GetProcessId();
psConnContext = (DMANKM_sConnContext *) LST_first(&psDevContext->sConnList);
while (psConnContext != IMG_NULL ) {
/* If process already has a connection. */
if (psConnContext->hProcessId == hProcessId) {
/* Update the open count...*/
psConnContext->ui32OpenCnt++;
/* Return the connection handle and/or id...*/
if (phConnHandle != IMG_NULL ) {
*phConnHandle = psConnContext;
}
if (pui32ConnId != IMG_NULL ) {
*pui32ConnId = psConnContext->ui32ConnId;
}
/* Return success...*/
return IMG_SUCCESS;
}
/* Look at next connection. */
psConnContext = (DMANKM_sConnContext *) LST_next(psConnContext);
}
/* See if we have a connection exclusive access required or only exclusive access available. */
psConnContext = (DMANKM_sConnContext *) LST_first(&psDevContext->sConnList);
if ((psConnContext != IMG_NULL )&&
( (eOpenMode == DMAN_OMODE_EXCLUSIVE) ||
(psConnContext->psDevContext->sDevRegister.ui32ConnFlags == DMAN_CFLAG_EXCLUSIVE) )
){
IMG_ASSERT(IMG_FALSE);
return IMG_ERROR_DEVICE_UNAVAILABLE;
}
/* Allocate connection context...*/
psConnContext = IMG_MALLOC(sizeof(*psConnContext));
if (psConnContext == IMG_NULL )
{
IMG_ASSERT(psConnContext != IMG_NULL);
return IMG_ERROR_OUT_OF_MEMORY;
}
IMG_MEMSET(psConnContext, 0, sizeof(*psConnContext));
/* Initialise list of resource allocator...*/
LST_init(&psConnContext->sAttachList);
/* Setup connection context...*/
psConnContext->psDevContext = psDevContext;
psConnContext->ui32OpenCnt = 1;
psConnContext->hProcessId = hProcessId;
/* Update the count of connections...*/
psDevContext->ui32ConnCnt++;
/* If this is the first connection...*/
if (psDevContext->ui32ConnCnt == 1) {
/* Create resource bucket for connections and attachments...*/
RMAN_Initialise();
ui32Result = RMAN_CreateBucket(&psDevContext->hResBHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_create_bucket;
}
}
/* Add to list of connections...*/
LST_add(&psDevContext->sConnList, psConnContext);
ui32Result = RMAN_RegisterResource(psDevContext->hResBHandle,
DMAN_CONN_TYPE_ID, IMG_NULL, psConnContext,
&psConnContext->hResHandle, &psConnContext->ui32ConnId);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_register_resource;
}
/* Register with the Process Manager in case the process dies...*/
ui32Result = PMAN_Initialise();
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_pman_init;
}
PMAN_RegisterProcessLostCb(dmankm_fnProcessLostCb, psConnContext,
&psConnContext->hProcLostCbHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_pman_register_cb;
}
/* If this the first connection and initialise function...*/
if ((psDevContext->ui32ConnCnt == 1)
&& (psDevContext->sDevRegister.pfnDevInit != IMG_NULL )) {
/* Allocate implicit connection context...*/
psInitConnContext = IMG_MALLOC(sizeof(*psInitConnContext));
if (psInitConnContext == IMG_NULL )
{
IMG_ASSERT(psInitConnContext != IMG_NULL);
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_init_conn_ctx;
}
IMG_MEMSET(psInitConnContext, 0, sizeof(*psInitConnContext));
/* Associated this connection with the device and process...*/
psInitConnContext->psDevContext = psDevContext;
psInitConnContext->ui32OpenCnt = 1;
psInitConnContext->hProcessId = hProcessId;
/* Mark this as the init connection...*/
psInitConnContext->bInitConn = IMG_TRUE;
/* Add implicit to list of connections...*/
LST_add(&psDevContext->sConnList, psInitConnContext);
ui32Result = RMAN_RegisterResource(psDevContext->hResBHandle,
DMAN_CONN_TYPE_ID, IMG_NULL, psInitConnContext,
&psInitConnContext->hResHandle, &psInitConnContext->ui32ConnId);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_register_resource_init_ctx;
}
IMG_ASSERT(
(psDevContext->sDevRegister.ui32ConnFlags == DMAN_CFLAG_EXCLUSIVE) || (psDevContext->sDevRegister.ui32ConnFlags == DMAN_CFLAG_SHARED));
/* If it's not a pseudo device... */
if ((psDevContext->sDevRegister.ui32DevFlags & DMAN_DFLAG_PSEUDO_DEVICE)
== 0) {
/* Open the device...*/
ui32Result = SYSDEVU_OpenDevice(psDevContext->pszDeviceName,
&psDevContext->hSysDevHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_open_device;
}
/* Power the device on. */
SYSDEVU_SetPowerState(psDevContext->hSysDevHandle,
SYSOSKM_POWERSTATE_S0, IMG_FALSE);
}
ui32Result = psDevContext->sDevRegister.pfnDevInit(psDevContext,
psInitConnContext, &psDevContext->pvDevInstanceData);
if (ui32Result != IMG_SUCCESS) {
REPORT(REPORT_MODULE_DMAN, REPORT_ERR, "dev init failed (%d)",
ui32Result);
goto error_dev_init;
}
/* If there is a Device Kernel mode HISR...*/
if (psDevContext->sDevRegister.pfnDevKmHisr != IMG_NULL ) {
IMG_ASSERT(psDevContext->sDevRegister.pfnDevKmLisr != IMG_NULL);
ui32Result = SYSOSKM_CreateKmHisr(&dmankm_fnDevKmHisr, psDevContext,
&psDevContext->hHISRHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_create_km_hisr;
}
}
/* If there is a Device Kernel mode LISR...*/
if (psDevContext->sDevRegister.pfnDevKmLisr != IMG_NULL ) {
/* Register the LISR wrapper...*/
SYSDEVU_RegisterDevKmLisr(psDevContext->hSysDevHandle,
&dmankm_fnDevKmLisr, psDevContext);
}
}
/* If connect/open function...*/
if (psDevContext->sDevRegister.pfnDevConnect != IMG_NULL ) {
ui32Result = psDevContext->sDevRegister.pfnDevConnect(psConnContext,
psDevContext->pvDevInstanceData,
&psConnContext->pvDevConnectionData);
IMG_ASSERT(
ui32Result == IMG_SUCCESS || ui32Result == IMG_ERROR_INTERRUPTED);
if (ui32Result != IMG_SUCCESS && ui32Result != IMG_ERROR_INTERRUPTED) {
goto error_dev_connect;
}
}
/* Return the connection handle and/or id...*/
if (phConnHandle != IMG_NULL ) {
*phConnHandle = psConnContext;
}
if (pui32ConnId != IMG_NULL ) {
*pui32ConnId = psConnContext->ui32ConnId;
}
/* Return success...*/
return ui32Result;
/* Error handling. */
error_dev_connect:
/* If this not the first connection or there's no initialise function...*/
if ((1 != psDevContext->ui32ConnCnt)
|| (IMG_NULL == psDevContext->sDevRegister.pfnDevInit)) {
/* ...skip de-initialisation of this part. */
goto error_init_conn_ctx;
}
if (IMG_NULL != psDevContext->sDevRegister.pfnDevKmHisr) {
SYSOSKM_DestroyKmHisr(psDevContext->hHISRHandle);
}
error_create_km_hisr:
if (IMG_NULL
!= psDevContext->sDevRegister.pfnDevDeinit) {
psDevContext->sDevRegister.pfnDevDeinit(psDevContext, psInitConnContext,
psDevContext->pvDevInstanceData);
}
error_dev_init:
if ((psDevContext->sDevRegister.ui32DevFlags
& DMAN_DFLAG_PSEUDO_DEVICE) == 0) {
SYSDEVU_CloseDevice(psDevContext->hSysDevHandle);
}
error_open_device:
RMAN_FreeResource(psInitConnContext->hResHandle);
error_register_resource_init_ctx:
LST_remove(&psDevContext->sConnList, psInitConnContext);
IMG_FREE(psInitConnContext);
error_init_conn_ctx:
PMAN_RemoveProcessLostCb(psConnContext->hProcLostCbHandle);
/* release per-process resources in PMAN, allocated inside
PMAN_RegisterProcessLostCb. We have to use device disconnect,
although the device wasn't actually initialised, because no
other function is exposed by PMAN */
PMAN_DevDisconnectComplete(hProcessId);
error_pman_register_cb:
error_pman_init:
RMAN_FreeResource(psConnContext->hResHandle);
error_register_resource:
LST_remove(&psDevContext->sConnList,psConnContext);
if (1 == psDevContext->ui32ConnCnt) {
RMAN_DestroyBucket(psDevContext->hResBHandle);
}
error_create_bucket:
psDevContext->ui32ConnCnt--;
IMG_FREE(psConnContext);
return ui32Result;
}
/*!
******************************************************************************
@Function POOL_ResRegister
******************************************************************************/
IMG_RESULT POOL_ResRegister(
IMG_HANDLE hPoolHandle,
POOL_pfnDestructor pfnDestructor,
IMG_VOID * pvParam,
IMG_UINT32 ui32SizevParam,
IMG_BOOL bAlloc,
IMG_UINT32 * pui32ResId,
IMG_HANDLE * phPoolResHandle
)
{
POOL_sResPool * psResPool = hPoolHandle;
POOL_sResource * psResource;
IMG_UINT32 ui32Result;
IMG_ASSERT(gInitialised);
IMG_ASSERT(psResPool != IMG_NULL);
if (!gInitialised ||
psResPool == IMG_NULL)
{
ui32Result = IMG_ERROR_INVALID_PARAMETERS;
goto error_nolock;
}
/* Allocate a resource structure...*/
psResource = IMG_MALLOC(sizeof(*psResource));
IMG_ASSERT(psResource != IMG_NULL);
if (psResource == IMG_NULL)
{
return IMG_ERROR_OUT_OF_MEMORY;
}
IMG_MEMSET(psResource, 0, sizeof(*psResource));
/* Setup the resource...*/
psResource->pfnDestructor = pfnDestructor;
psResource->pvParam = pvParam;
psResource->ui32SizevParam = ui32SizevParam;
psResource->psResPool = psResPool;
LST_init(&psResource->sCloneResList);
/* Lock the pool...*/
SYSOSKM_LockMutex(psResPool->hMutexHandle);
/* Set resource id...*/
ui32Result = IDGEN_AllocId(psResPool->hIdGenHandle, (IMG_HANDLE)psResource, &psResource->ui32ResId);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
IMG_FREE(psResource);
/* Unlock the pool...*/
SYSOSKM_UnlockMutex(psResPool->hMutexHandle);
return ui32Result;
}
/* If allocated or free callback not set...*/
if ( (bAlloc) || (psResPool->pfnFree != IMG_NULL) )
{
/* Add to active list...*/
LST_add(&psResPool->sActResList, psResource);
psResource->ui32RefCnt++;
}
else
{
/* Add to free list...*/
LST_add(&psResPool->sFreeResList, psResource);
}
/* Return the resource id...*/
if (pui32ResId != IMG_NULL)
{
*pui32ResId = psResource->ui32ResId;
}
/* Return the handle to the resource...*/
if (phPoolResHandle != IMG_NULL)
{
*phPoolResHandle = psResource;
}
/* Unlock the pool...*/
SYSOSKM_UnlockMutex(psResPool->hMutexHandle);
/* If free callback set...*/
if (psResPool->pfnFree != IMG_NULL)
{
/* Call the free callback...*/
psResPool->pfnFree(psResource->ui32ResId, psResource->pvParam);
}
/* Return IMG_SUCCESS...*/
return IMG_SUCCESS;
error_nolock:
return ui32Result;
}
/*!
******************************************************************************
@Function MMU_DeviceCreate
******************************************************************************/
IMG_RESULT MMU_DeviceCreate(
MMU_eMmuType eMmuType,
VDEC_eTileScheme eTileScheme,
VDECDDMMU_pfnDeviceCallback pfnDeviceCallback,
MSVDXIO_sMemPool sMemPool,
IMG_VOID * pvCallbackParameter,
IMG_UINT32 ui32PtdAlignment,
IMG_HANDLE * phMmuDevHandle
)
{
IMG_RESULT ui32Result = IMG_SUCCESS;
IMG_BOOL bTiling = IMG_TRUE;
TALMMU_eMMUType eTalMmuType = TALMMU_MMUTYPE_4K_PAGES_32BIT_ADDR;
IMG_UINT32 i;
MMU_sDevContext * psDevContext;
TALMMU_sDevMemInfo sDevMemInfo;
// Set the TAL MMU type.
switch (eMmuType)
{
case MMU_TYPE_32BIT:
eTalMmuType = TALMMU_MMUTYPE_4K_PAGES_32BIT_ADDR;
break;
case MMU_TYPE_36BIT:
eTalMmuType = TALMMU_MMUTYPE_4K_PAGES_36BIT_ADDR;
break;
case MMU_TYPE_40BIT:
eTalMmuType = TALMMU_MMUTYPE_4K_PAGES_40BIT_ADDR;
break;
default:
return IMG_ERROR_INVALID_PARAMETERS;
}
/* Allocate a device context structure...*/
VDEC_MALLOC(psDevContext);
IMG_ASSERT(psDevContext != IMG_NULL);
if (psDevContext == IMG_NULL)
{
REPORT(REPORT_MODULE_MMU, REPORT_ERR,
"Failed to allocate memory for MMU device context");
return IMG_ERROR_OUT_OF_MEMORY;
}
VDEC_BZERO(psDevContext);
/* Initialise stream list. */
LST_init(&psDevContext->sStrList);
psDevContext->pfnDeviceCallback = pfnDeviceCallback;
psDevContext->pvCallbackParameter = pvCallbackParameter;
/* Initialise TALMMU. */
ui32Result = TALMMU_Initialise();
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_tal_init;
}
/* Create an MMU template */
sDevMemInfo.pszDeviceName = "VDEC";
sDevMemInfo.ui32DeviceId = 0;
sDevMemInfo.eMMUType = eTalMmuType;
sDevMemInfo.eDevFlags = TALMMU_DEVFLAGS_NONE;
sDevMemInfo.pszPageDirMemSpaceName = "MEM";
sDevMemInfo.pszPageTableMemSpaceName = IMG_NULL;
sDevMemInfo.ui32PageSize = DEV_MMU_PAGE_SIZE;
sDevMemInfo.ui32PageTableDirAlignment = ui32PtdAlignment;
sDevMemInfo.eMemAttrib = (SYS_MEMATTRIB_UNCACHED | SYS_MEMATTRIB_WRITECOMBINE);
sDevMemInfo.eMemPool = sMemPool.eMemPoolId;
sDevMemInfo.eTilingScheme = (eTileScheme == VDEC_TS1_512x8) ? TALMMU_MMUTILING_SCHEME_1 : TALMMU_MMUTILING_SCHEME_0;
ui32Result = TALMMU_DevMemTemplateCreate(&sDevMemInfo, &psDevContext->hDevMemTemplate);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_tal_template;
}
TALMMU_AddCallback(psDevContext->hDevMemTemplate,
mmu_Callback,
(IMG_PVOID)psDevContext);
/* Add heaps to template */
for (i = 0; i < MMU_HEAP_MAX; i++)
{
sHeapInfo.ui32HeapId = asMmuHeaps[i].eHeapId;
sHeapInfo.eHeapType = asMmuHeaps[i].eHeapType;
sHeapInfo.pszMemSpaceName = asMmuHeaps[i].pszMemSpace;
sHeapInfo.bTiled = (bTiling && asMmuHeaps[i].ui32TileStride) ? IMG_TRUE : IMG_FALSE;
sHeapInfo.ui32BaseDevVirtAddr = asMmuHeaps[i].ui32StartOffset;
sHeapInfo.ui32Size = asMmuHeaps[i].ui32Size;
sHeapInfo.ui32XTileStride = 0;
if (asMmuHeaps[i].ui32TileStride)
{
IMG_UINT32 ui32HwTileStride;
IMG_UINT32 ui32Log2HwTileStride = 0;
ui32HwTileStride = asMmuHeaps[i].ui32TileStride;
// Calculate HW tile stride.
// HW tile stride = log2((tile_stride / tile_width)/ 2)
ui32HwTileStride >>= 1;
switch (eTileScheme)
{
case VDEC_TS0_256x16:
ui32HwTileStride >>= 8;
break;
case VDEC_TS1_512x8:
ui32HwTileStride >>= 9;
break;
default:
IMG_ASSERT(0);
break;
}
ui32HwTileStride >>= 1;
while (ui32HwTileStride)
{
ui32HwTileStride >>= 1;
ui32Log2HwTileStride++;
}
// Calculated hardware coded stride value.
ui32HwTileStride = ui32Log2HwTileStride;
sHeapInfo.ui32XTileStride = ui32HwTileStride;
}
ui32Result = TALMMU_DevMemHeapAdd(psDevContext->hDevMemTemplate, &sHeapInfo);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_tal_heap;
}
}
