/*!
******************************************************************************
@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 PALLOC_Import1
******************************************************************************/
IMG_RESULT PALLOC_Import1(
IMG_UINT32 ui32AttachId,
SYS_eMemAttrib eMemAttrib,
int buff_fd,
PALLOC_sUmAlloc __user * psUmAlloc
)
{
IMG_HANDLE hDevHandle;
IMG_UINT32 ui32Result;
PALLOC_sKmAlloc * psKmAlloc;
IMG_HANDLE hAttachHandle;
PALLOC_sAttachContext * psAttachContext;
IMG_UINT32 ui32PageNo;
IMG_UINT32 ui32PageIdx;
IMG_UINT64 ui64CpuPAddr;
PALLOC_sUmAlloc sUmAllocCp;
IMG_UINT64 * paui64DevAddrs;
SYSDEVU_sInfo * psSysDev;
SYS_eMemPool eMemPool;
IMG_PVOID pvCpuKmAddr;
LOG_EVENT(PALLOC, PALLOC_IMPORT, LOG_FLAG_START | LOG_FLAG_QUAL_ARG1 | LOG_FLAG_QUAL_ARG2,
ui32AttachId, buff_fd);
DEBUG_REPORT(REPORT_MODULE_PALLOC, "PALLOC_Import1 fd %d", buff_fd);
if (SYSOSKM_CopyFromUser(&sUmAllocCp, psUmAlloc, sizeof sUmAllocCp) != IMG_SUCCESS)
{
return IMG_ERROR_FATAL;
}
IMG_ASSERT(sUmAllocCp.bMappingOnly);
/* Get the attachment handle from its ID... */
ui32Result = DMANKM_GetAttachHandleFromId(ui32AttachId, &hAttachHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
return ui32Result;
}
/* Get access to the attachment specific data...*/
psAttachContext = DMANKM_GetCompAttachmentData(hAttachHandle);
/* Get access to the device handle...*/
hDevHandle = DMANKM_GetDevHandleFromAttach(hAttachHandle);
/* Lock the device...*/
DMANKM_LockDeviceContext(hDevHandle);
psSysDev = SYSDEVU_GetDeviceById(SYSDEVKM_GetDeviceID(psAttachContext->hSysDevHandle));
IMG_ASSERT(psSysDev != IMG_NULL); // I
if (psSysDev == IMG_NULL)
{
ui32Result = IMG_ERROR_DEVICE_NOT_FOUND;
goto error_get_dev_by_id;
}
eMemPool = (eMemAttrib & SYS_MEMATTRIB_SECURE) ? psSysDev->secureMemPool : psSysDev->sMemPool;
/* Allocate allocation info...*/
psKmAlloc = IMG_MALLOC(sizeof *psKmAlloc);
IMG_ASSERT(psKmAlloc != IMG_NULL);
if (psKmAlloc == IMG_NULL)
{
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_alloc_info;
}
IMG_MEMSET(psKmAlloc, 0, sizeof *psKmAlloc);
/* Save device handle etc... */
psKmAlloc->hDevHandle = hDevHandle;
psKmAlloc->sAllocInfo.ui32Size = sUmAllocCp.ui32Size;
psKmAlloc->sAllocInfo.bIsContiguous = IMG_FALSE;
/* Get the device id...*/
ui32Result = DMANKM_GetDeviceId(hDevHandle, &sUmAllocCp.ui32DeviceId);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_get_dev_id;
}
psKmAlloc->sAllocInfo.bMappingOnly = IMG_TRUE;
/* Calculate the size of the allocation in pages */
ui32PageNo = (sUmAllocCp.ui32Size + SYS_MMU_PAGE_SIZE - 1)/SYS_MMU_PAGE_SIZE;
psKmAlloc->sAllocInfo.psSysPAddr = IMG_BIGORSMALL_ALLOC(sizeof(IMG_SYS_PHYADDR) * ui32PageNo);
IMG_ASSERT(psKmAlloc->sAllocInfo.psSysPAddr);
if (IMG_NULL == psKmAlloc->sAllocInfo.psSysPAddr)
{
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_page_array;
}
paui64DevAddrs = IMG_BIGORSMALL_ALLOC((sizeof *paui64DevAddrs) * ui32PageNo);
IMG_ASSERT(paui64DevAddrs);
if (IMG_NULL == paui64DevAddrs)
{
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_addr_array;
}
if(buff_fd >= 0)
{
pvCpuKmAddr = NULL;
/* ION buffer */
#if defined ANDROID_ION_BUFFERS
psKmAlloc->eBufType = PALLOC_BUFTYPE_ANDROIDNATIVE;
#if defined CONFIG_X86
ui32Result = palloc_GetIONPages(eMemPool, buff_fd, sUmAllocCp.ui32Size,
psKmAlloc->sAllocInfo.psSysPAddr,
&pvCpuKmAddr,
&psKmAlloc->hBufHandle);
#else // if CONFIG_X86
ui32Result = palloc_GetIONPages(eMemPool, buff_fd, sUmAllocCp.ui32Size,
psKmAlloc->sAllocInfo.psSysPAddr,
NULL,
&psKmAlloc->hBufHandle);
#endif // if CONFIG_X86
if (ui32Result != IMG_SUCCESS)
{
IMG_ASSERT(!"palloc_GetIONPages");
goto error_get_pages;
}
#else // if ANDROID_ION_BUFFERS
IMG_ASSERT(!"NOT ANDROID: ION not supported");
goto error_get_pages;
#endif // if ANDROID_ION_BUFFERS
}
else
{
/* User space allocated buffer */
IMG_VOID __user * pvUmBuff = ( IMG_VOID __user * ) sUmAllocCp.pvCpuUmAddr;
IMG_ASSERT(pvUmBuff);
psKmAlloc->hBufHandle = (IMG_HANDLE)(sUmAllocCp.pvCpuUmAddr);
psKmAlloc->eBufType = PALLOC_BUFTYPE_USERALLOC;
/* Assign and lock physical addresses to the user space buffer.
The mapping of the first page in the kernel is also returned */
ui32Result = SYSOSKM_CpuUmAddrToCpuPAddrArray(pvUmBuff, psKmAlloc->sAllocInfo.psSysPAddr,
ui32PageNo, &pvCpuKmAddr);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_get_pages;
}
}
/* Import pages */
ui32Result = SYSMEMU_ImportExternalPages(eMemPool, sUmAllocCp.ui32Size, eMemAttrib,
&psKmAlloc->hPagesHandle, pvCpuKmAddr,
psKmAlloc->sAllocInfo.psSysPAddr);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_import_pages;
}
// Access from user space is not needed for the moment. Can be changed.
sUmAllocCp.lOffset = 0;
#if PALLOC_EXPOSE_KM_HANDLE
sUmAllocCp.hKmAllocHandle = psKmAlloc->hPagesHandle;
#endif /* PALLOC_EXPOSE_KM_HANDLE */
for (ui32PageIdx = 0; ui32PageIdx < ui32PageNo; ++ui32PageIdx)
{
ui64CpuPAddr = psKmAlloc->sAllocInfo.psSysPAddr[ui32PageIdx];
paui64DevAddrs[ui32PageIdx] =
SYSDEVKM_CpuPAddrToDevPAddr(psAttachContext->hSysDevHandle, ui64CpuPAddr);
}
/* Register this with the resource manager */
ui32Result = RMAN_RegisterResource(psAttachContext->hResBHandle, PALLOC_RES_TYPE_1,
palloc_fnFree, psKmAlloc, IMG_NULL, &sUmAllocCp.ui32AllocId);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_resource_register;
}
LOG_EVENT(PALLOC, PALLOC_IMPORTID, LOG_FLAG_END | LOG_FLAG_QUAL_ARG1 | LOG_FLAG_QUAL_ARG2,
ui32AttachId, sUmAllocCp.ui32AllocId);
/* Unlock the device...*/
DMANKM_UnlockDeviceContext(hDevHandle);
/* Copy to user changed PALLOC_sUmAlloc, including physical device addresses */
if (SYSOSKM_CopyToUser(psUmAlloc, &sUmAllocCp, sizeof sUmAllocCp))
{
ui32Result = IMG_ERROR_FATAL;
goto error_copy_to_user;
}
if (SYSOSKM_CopyToUser(psUmAlloc->aui64DevPAddr, paui64DevAddrs,
(sizeof *paui64DevAddrs) * ui32PageNo))
{
ui32Result = IMG_ERROR_FATAL;
goto error_copy_to_user;
}
/* Free the address array */
IMG_BIGORSMALL_FREE((sizeof *paui64DevAddrs) * ui32PageNo, paui64DevAddrs);
LOG_EVENT(PALLOC, PALLOC_IMPORT, LOG_FLAG_END | LOG_FLAG_QUAL_ARG1 | LOG_FLAG_QUAL_ARG2,
ui32AttachId, buff_fd);
/* Return. */
return IMG_SUCCESS;
/* Error handling. */
error_copy_to_user:
/* Free everything. */
PALLOC_Free1(sUmAllocCp.ui32AllocId);
goto error_return;
error_resource_register:
SYSMEMU_FreePages(psKmAlloc->hPagesHandle);
error_import_pages:
if (buff_fd >= 0)
{
#ifdef ANDROID_ION_BUFFERS
palloc_ReleaseIONBuf(psKmAlloc->hBufHandle, NULL);
#endif /* ANDROID_ION_BUFFERS */
}
else
{
SYSOSKM_ReleaseCpuPAddrArray(pvCpuKmAddr, psKmAlloc->hBufHandle,
psKmAlloc->sAllocInfo.psSysPAddr, ui32PageNo);
}
error_get_pages:
IMG_BIGORSMALL_FREE((sizeof *paui64DevAddrs) * ui32PageNo, paui64DevAddrs);
error_addr_array:
IMG_BIGORSMALL_FREE(sizeof(IMG_SYS_PHYADDR) * ui32PageNo, psKmAlloc->sAllocInfo.psSysPAddr);
error_page_array:
error_get_dev_id:
IMG_FREE(psKmAlloc);
error_alloc_info:
error_get_dev_by_id:
/* Unlock the device. */
DMANKM_UnlockDeviceContext(hDevHandle);
error_return:
return ui32Result;
}
/*!
******************************************************************************
@Function DMANKM_AttachComponent
******************************************************************************/
IMG_RESULT DMANKM_AttachComponent(IMG_HANDLE hConnHandle,
IMG_CHAR * pszCompName, DMANKM_pfnCompAttach pfnCompAttach,
IMG_HANDLE * phAttachHandle, IMG_UINT32 * pui32AttachId)
{
DMANKM_sConnContext * psConnContext = (DMANKM_sConnContext *) hConnHandle;
IMG_BOOL bFound;
DMANKM_sAttachContext * psAttachContext;
IMG_UINT32 ui32Result;
IMG_ASSERT(gDmanKmInitialised);
/* See if this component is already register with this connection...*/
bFound = dman_LocateComponentKM(pszCompName, psConnContext,
&psAttachContext);
if (bFound) {
/* Cross check name and attach function should be the same...*/
IMG_ASSERT(psAttachContext->pfnCompAttach == pfnCompAttach);
/* Return the attachment handle and/or id...*/
if (phAttachHandle != IMG_NULL ) {
*phAttachHandle = psAttachContext;
}
if (pui32AttachId != IMG_NULL ) {
*pui32AttachId = psAttachContext->ui32AttachId;
}
return IMG_SUCCESS;
}
/* Allocate a attachment context structure...*/
psAttachContext = IMG_MALLOC(sizeof(*psAttachContext));
if (psAttachContext == IMG_NULL )
{
IMG_ASSERT(psAttachContext != IMG_NULL);
return IMG_ERROR_OUT_OF_MEMORY;
}
IMG_MEMSET(psAttachContext, 0, sizeof(*psAttachContext));
/* Copy the component name etc...*/
psAttachContext->pszCompName = IMG_STRDUP(pszCompName);
if (psAttachContext->pszCompName == IMG_NULL )
{
IMG_ASSERT(psAttachContext->pszCompName != IMG_NULL);
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_comp_name;
}
psAttachContext->pfnCompAttach = pfnCompAttach;
psAttachContext->psConnContext = psConnContext;
ui32Result = RMAN_CreateBucket(&psAttachContext->hResBHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_create_bucket;
}
/* Add to the attachment component list...*/
LST_add(&psConnContext->sAttachList, psAttachContext);
ui32Result = RMAN_RegisterResource(psConnContext->psDevContext->hResBHandle,
DMAN_ATTACH_TYPE_ID, IMG_NULL, psAttachContext,
&psAttachContext->hResHandle, &psAttachContext->ui32AttachId);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_register_resource;
}
/* Call components attach function...*/
ui32Result = pfnCompAttach(psAttachContext, &psAttachContext->sCompAttach);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_comp_attach;
}
/* If connect/open function...*/
if (psAttachContext->sCompAttach.pfnCompConnect != IMG_NULL ) {
ui32Result = psAttachContext->sCompAttach.pfnCompConnect(
psAttachContext, &psAttachContext->pvCompAttachmentData);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS) {
goto error_comp_connect;
}
}
/* Return the attachment handle and/or id...*/
if (phAttachHandle != IMG_NULL ) {
*phAttachHandle = psAttachContext;
}
if (pui32AttachId != IMG_NULL ) {
*pui32AttachId = psAttachContext->ui32AttachId;
}
/* Return success...*/
return IMG_SUCCESS;
/* Error handling. */
error_comp_connect: error_comp_attach: RMAN_FreeResource(
psAttachContext->hResHandle);
error_register_resource: LST_remove(&psConnContext->sAttachList,
psAttachContext);
RMAN_DestroyBucket(psAttachContext->hResBHandle);
error_create_bucket:
IMG_FREE(psAttachContext->pszCompName);
error_comp_name:
IMG_FREE(psAttachContext);
return ui32Result;
}
/*!
******************************************************************************
@Function PALLOC_Alloc1
******************************************************************************/
IMG_RESULT PALLOC_Alloc1(
IMG_UINT32 ui32AttachId,
SYS_eMemAttrib eMemAttrib,
PALLOC_sUmAlloc __user * psUmAlloc
)
{
IMG_HANDLE hDevHandle;
IMG_UINT32 ui32Result;
PALLOC_sKmAlloc * psKmAlloc;
IMG_HANDLE hAttachHandle;
PALLOC_sAttachContext * psAttachContext;
IMG_UINT32 ui32PageNo;
PALLOC_sUmAlloc sUmAllocCp;
IMG_UINT32 ui32PageIdx;
IMG_UINT64 * pui64Phys;
SYSMEMU_sPages * psSysMem;
SYS_eMemPool eMemPool;
SYSDEVU_sInfo * psSysDev;
/* the following code assumes that IMG_SYS_PHYADDR and IMG_UINT64 are the same size */
#ifndef SYSBRG_BRIDGING
IMG_VOID * pvKmAddr;
#endif
if (SYSOSKM_CopyFromUser(&sUmAllocCp, psUmAlloc, sizeof(sUmAllocCp)) != IMG_SUCCESS)
{
return IMG_ERROR_FATAL;
}
LOG_EVENT(PALLOC, PALLOC_ALLOC, (LOG_FLAG_START | LOG_FLAG_QUAL_ARG1 |LOG_FLAG_QUAL_ARG2), ui32AttachId, sUmAllocCp.ui32Size);
IMG_ASSERT(!sUmAllocCp.bMappingOnly);
/* Get the attachment handle from its ID...*/
ui32Result = DMANKM_GetAttachHandleFromId(ui32AttachId, &hAttachHandle);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
return ui32Result;
}
/* Get access to the attachment specific data...*/
psAttachContext = DMANKM_GetCompAttachmentData(hAttachHandle);
/* Get access to the device handle...*/
hDevHandle = DMANKM_GetDevHandleFromAttach(hAttachHandle);
/* Lock the device...*/
DMANKM_LockDeviceContext(hDevHandle);
psSysDev = SYSDEVU_GetDeviceById(SYSDEVKM_GetDeviceID(psAttachContext->hSysDevHandle));
IMG_ASSERT(psSysDev != IMG_NULL); // I
if (psSysDev == IMG_NULL)
{
return IMG_ERROR_DEVICE_NOT_FOUND;
}
eMemPool = (eMemAttrib & SYS_MEMATTRIB_SECURE) ? psSysDev->secureMemPool : psSysDev->sMemPool;
/* Allocate allocation info...*/
psKmAlloc = IMG_MALLOC(sizeof(*psKmAlloc));
IMG_ASSERT(psKmAlloc != IMG_NULL);
if (psKmAlloc == IMG_NULL)
{
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_alloc_info;
}
IMG_MEMSET(psKmAlloc, 0, sizeof(*psKmAlloc));
/* Save device handle etc...*/
psKmAlloc->hDevHandle = hDevHandle;
psKmAlloc->sAllocInfo.ui32Size = sUmAllocCp.ui32Size;
psKmAlloc->hBufHandle = NULL;
psKmAlloc->eBufType = PALLOC_BUFTYPE_PALLOCATED;
/* Allocate pages...*/
ui32Result = SYSMEMU_AllocatePages(sUmAllocCp.ui32Size, eMemAttrib, eMemPool,
&psKmAlloc->hPagesHandle, &pui64Phys);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_alloc_pages;
}
#ifndef SYSBRG_BRIDGING
SYSMEMU_GetCpuKmAddr(&pvKmAddr, psKmAlloc->hPagesHandle);
IMG_ASSERT(pvKmAddr != IMG_NULL);
if(pvKmAddr == IMG_NULL)
{
ui32Result = IMG_ERROR_FATAL;
goto error_cpu_km_addr;
}
#endif
/* Return addresses...*/
psSysMem = psKmAlloc->hPagesHandle;
#ifdef PALLOC_EXPOSE_KM_HANDLE
sUmAllocCp.hKmAllocHandle = psKmAlloc->hPagesHandle;
#endif
/* Check if contiguous...*/
psKmAlloc->sAllocInfo.bIsContiguous = SYSMEMKM_IsContiguous(psKmAlloc->hPagesHandle);
/* Get the device id...*/
ui32Result = DMANKM_GetDeviceId(hDevHandle, &sUmAllocCp.ui32DeviceId);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_get_dev_id;
}
sUmAllocCp.lOffset = 0;
if (psSysMem->hRegHandle)
{
// Determine the offset to memory if it has been made mappable in UM.
sUmAllocCp.lOffset = (long)pui64Phys[0];
}
/* Calculate the size of the allocation in pages...*/
ui32PageNo = (sUmAllocCp.ui32Size + SYS_MMU_PAGE_SIZE - 1)/SYS_MMU_PAGE_SIZE;
psKmAlloc->sAllocInfo.psSysPAddr = IMG_BIGORSMALL_ALLOC(sizeof(IMG_SYS_PHYADDR) * ui32PageNo);
IMG_ASSERT(psKmAlloc->sAllocInfo.psSysPAddr);
if (IMG_NULL == psKmAlloc->sAllocInfo.psSysPAddr)
{
ui32Result = IMG_ERROR_OUT_OF_MEMORY;
goto error_page_array;
}
IMG_MEMSET(psKmAlloc->sAllocInfo.psSysPAddr, 0, sizeof(IMG_SYS_PHYADDR) * ui32PageNo);
for (ui32PageIdx = 0; ui32PageIdx < ui32PageNo; ++ui32PageIdx)
{
psKmAlloc->sAllocInfo.psSysPAddr[ui32PageIdx] = pui64Phys[ui32PageIdx];
}
/* Register this with the resource manager...*/
ui32Result = RMAN_RegisterResource(psAttachContext->hResBHandle, PALLOC_RES_TYPE_1,
palloc_fnFree, psKmAlloc, IMG_NULL, &sUmAllocCp.ui32AllocId);
IMG_ASSERT(ui32Result == IMG_SUCCESS);
if (ui32Result != IMG_SUCCESS)
{
goto error_resource_register;
}
LOG_EVENT(PALLOC, PALLOC_ALLOCID, (LOG_FLAG_END | LOG_FLAG_QUAL_ARG1 |LOG_FLAG_QUAL_ARG2),
ui32AttachId, sUmAllocCp.ui32AllocId);
/* Unlock the device...*/
DMANKM_UnlockDeviceContext(hDevHandle);
/* Copy to user changed PALLOC_sUmAlloc, including physical device addresses */
if (SYSOSKM_CopyToUser(psUmAlloc, &sUmAllocCp, sizeof(sUmAllocCp)))
{
ui32Result = IMG_ERROR_FATAL;
goto error_copy_to_user;
}
if (SYSOSKM_CopyToUser(psUmAlloc->aui64DevPAddr, psKmAlloc->sAllocInfo.psSysPAddr,
sizeof(psKmAlloc->sAllocInfo.psSysPAddr[0]) * ui32PageNo))
{
ui32Result = IMG_ERROR_FATAL;
goto error_copy_to_user;
}
LOG_EVENT(PALLOC, PALLOC_ALLOC, (LOG_FLAG_END | LOG_FLAG_QUAL_ARG1 |LOG_FLAG_QUAL_ARG2),
ui32AttachId, sUmAllocCp.ui32Size);
/* Return. */
return IMG_SUCCESS;
/* Error handling. */
error_copy_to_user:
/* Free everything. */
PALLOC_Free1(sUmAllocCp.ui32AllocId);
goto error_return;
error_resource_register:
IMG_BIGORSMALL_FREE(sizeof(IMG_SYS_PHYADDR) * ui32PageNo,
psKmAlloc->sAllocInfo.psSysPAddr);
error_page_array:
error_get_dev_id:
#ifndef SYSBRG_BRIDGING
error_cpu_km_addr:
#endif /* SYSBRG_BRIDGING */
SYSMEMU_FreePages(psKmAlloc->hPagesHandle);
error_alloc_pages:
IMG_FREE(psKmAlloc);
error_alloc_info:
/* Unlock the device. */
DMANKM_UnlockDeviceContext(hDevHandle);
error_return:
return ui32Result;
}