Beispiel #1
0
/*!
******************************************************************************

 @Function	SysFinalise

 @Description Final part of initialisation


 @Return   PVRSRV_ERROR  :

******************************************************************************/
PVRSRV_ERROR SysFinalise(IMG_VOID)
{
    PVRSRV_ERROR eError;

#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
    eError = EnableSGXClocks();
    if (eError != PVRSRV_OK)
    {
        PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to Enable SGX clocks (%d)", eError));
        (IMG_VOID)SysDeinitialise(gpsSysData);
        gpsSysData = IMG_NULL;
        return eError;
    }
#endif

    eError = OSInstallMISR(gpsSysData);
    if (eError != PVRSRV_OK)
    {
        PVR_DPF((PVR_DBG_ERROR,"OSInstallMISR: Failed to install MISR"));
        SysDeinitialise(gpsSysData);
        gpsSysData = IMG_NULL;
        return eError;
    }
    gsSysSpecificData.ui32SysSpecificData |= SYS_SPECIFIC_DATA_ENABLE_MISR;

#if defined(SYS_USING_INTERRUPTS)
    /* install a system ISR */
    eError = OSInstallSystemLISR(gpsSysData, gsSGXDeviceMap.ui32IRQ);
    if (eError != PVRSRV_OK)
    {
        PVR_DPF((PVR_DBG_ERROR,"OSInstallSystemLISR: Failed to install ISR"));
        OSUninstallMISR(gpsSysData);
        SysDeinitialise(gpsSysData);
        gpsSysData = IMG_NULL;
        return eError;
    }

    gsSysSpecificData.ui32SysSpecificData |= SYS_SPECIFIC_DATA_ENABLE_LISR;
    gsSysSpecificData.ui32SysSpecificData |= SYS_SPECIFIC_DATA_ENABLE_IRQ;
#endif /* defined(SYS_USING_INTERRUPTS) */

    /* Create a human readable version string for this system */
    gpsSysData->pszVersionString = gszVersionString;

    if (!gpsSysData->pszVersionString)
    {
        PVR_DPF((PVR_DBG_ERROR,"SysFinalise: Failed to create a system version string"));
    }
    else
    {
        PVR_DPF((PVR_DBG_WARNING, "SysFinalise: Version string: %s", gpsSysData->pszVersionString));
    }

#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
    DisableSGXClocks();
#ifndef CONFIG_DVFS_LIMIT
    cpufreq_register_notifier(&cpufreq_limit_notifier,
                              CPUFREQ_POLICY_NOTIFIER);
#endif
#endif

    return PVRSRV_OK;
}
Beispiel #2
0
/*!
******************************************************************************

 @Function	SysInitialise

 @Description Initialises kernel services at 'driver load' time

 @Return   PVRSRV_ERROR  :

******************************************************************************/
PVRSRV_ERROR SysInitialise(IMG_VOID)
{
    IMG_UINT32			i;
    PVRSRV_ERROR 		eError;
    PVRSRV_DEVICE_NODE	*psDeviceNode;
    SGX_TIMING_INFORMATION*	psTimingInfo;

    gpsSysData = &gsSysData;
    OSMemSet(gpsSysData, 0, sizeof(SYS_DATA));

#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
    {
        extern struct platform_device *gpsPVRLDMDev;

        g3d_pd_regulator = regulator_get(&gpsPVRLDMDev->dev, "pd");

        if (IS_ERR(g3d_pd_regulator))
        {
            PVR_DPF((PVR_DBG_ERROR, "G3D failed to find g3d power domain"));
            return PVRSRV_ERROR_INIT_FAILURE;
        }

        g3d_clock = clk_get(&gpsPVRLDMDev->dev, "sclk");
        if (IS_ERR(g3d_clock))
        {
            PVR_DPF((PVR_DBG_ERROR, "G3D failed to find g3d clock source-enable"));
            return PVRSRV_ERROR_INIT_FAILURE;
        }

        EnableSGXClocks();
    }
#endif

    eError = OSInitEnvData(&gpsSysData->pvEnvSpecificData);
    if (eError != PVRSRV_OK)
    {
        PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to setup env structure"));
        SysDeinitialise(gpsSysData);
        gpsSysData = IMG_NULL;
        return eError;
    }

    gpsSysData->pvSysSpecificData = (IMG_PVOID)&gsSysSpecificData;
    OSMemSet(&gsSGXDeviceMap, 0, sizeof(SGX_DEVICE_MAP));

    /* Set up timing information*/
    psTimingInfo = &gsSGXDeviceMap.sTimingInfo;
    psTimingInfo->ui32CoreClockSpeed = SYS_SGX_CLOCK_SPEED;
    psTimingInfo->ui32HWRecoveryFreq = SYS_SGX_HWRECOVERY_TIMEOUT_FREQ;
    psTimingInfo->ui32ActivePowManLatencyms = SYS_SGX_ACTIVE_POWER_LATENCY_MS;
    psTimingInfo->ui32uKernelFreq = SYS_SGX_PDS_TIMER_FREQ;

#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
    psTimingInfo->bEnableActivePM = IMG_TRUE;
#else
    psTimingInfo->bEnableActivePM = IMG_FALSE;
#endif

    gpsSysData->ui32NumDevices = SYS_DEVICE_COUNT;

    /* init device ID's */
    for(i=0; i<SYS_DEVICE_COUNT; i++)
    {
        gpsSysData->sDeviceID[i].uiID = i;
        gpsSysData->sDeviceID[i].bInUse = IMG_FALSE;
    }

    gpsSysData->psDeviceNodeList = IMG_NULL;
    gpsSysData->psQueueList = IMG_NULL;

    eError = SysInitialiseCommon(gpsSysData);
    if (eError != PVRSRV_OK)
    {
        PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed in SysInitialiseCommon"));
        SysDeinitialise(gpsSysData);
        gpsSysData = IMG_NULL;
        return eError;
    }

    /*
    	Locate the devices within the system, specifying
    	the physical addresses of each devices components
    	(regs, mem, ports etc.)
    */
    eError = SysLocateDevices(gpsSysData);
    if (eError != PVRSRV_OK)
    {
        PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to locate devices"));
        SysDeinitialise(gpsSysData);
        gpsSysData = IMG_NULL;
        return eError;
    }

    /*
    	Register devices with the system
    	This also sets up their memory maps/heaps
    */
    eError = PVRSRVRegisterDevice(gpsSysData, SGXRegisterDevice, 1, &gui32SGXDeviceID);
    if (eError != PVRSRV_OK)
    {
        PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to register device!"));
        SysDeinitialise(gpsSysData);
        gpsSysData = IMG_NULL;
        return eError;
    }

    /*
    	Once all devices are registered, specify the backing store
    	and, if required, customise the memory heap config
    */
    psDeviceNode = gpsSysData->psDeviceNodeList;
    while(psDeviceNode)
    {
        /* perform any OEM SOC address space customisations here */
        switch(psDeviceNode->sDevId.eDeviceType)
        {
        case PVRSRV_DEVICE_TYPE_SGX:
        {
            DEVICE_MEMORY_INFO *psDevMemoryInfo;
            DEVICE_MEMORY_HEAP_INFO *psDeviceMemoryHeap;
            IMG_UINT32 ui32MemConfig;

            if(gpsSysData->apsLocalDevMemArena[0] != IMG_NULL)
            {
                /* specify the backing store to use for the device's MMU PT/PDs */
                psDeviceNode->psLocalDevMemArena = gpsSysData->apsLocalDevMemArena[0];
                ui32MemConfig = PVRSRV_BACKINGSTORE_LOCALMEM_CONTIG;
            }
            else
            {
                /*
                	specify the backing store to use for the devices MMU PT/PDs
                	- the PT/PDs are always UMA in this system
                */
                psDeviceNode->psLocalDevMemArena = IMG_NULL;
                ui32MemConfig = PVRSRV_BACKINGSTORE_SYSMEM_NONCONTIG;
            }

            /* useful pointers */
            psDevMemoryInfo = &psDeviceNode->sDevMemoryInfo;
            psDeviceMemoryHeap = psDevMemoryInfo->psDeviceMemoryHeap;

            /* specify the backing store for all SGX heaps */
            for(i=0; i<psDevMemoryInfo->ui32HeapCount; i++)
            {
#if defined(SGX_FEATURE_VARIABLE_MMU_PAGE_SIZE)
                IMG_CHAR *pStr;

                switch(psDeviceMemoryHeap[i].ui32HeapID)
                {
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_GENERAL_HEAP_ID):
                {
                    pStr = "GeneralHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_GENERAL_MAPPING_HEAP_ID):
                {
                    pStr = "GeneralMappingHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_TADATA_HEAP_ID):
                {
                    pStr = "TADataHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_KERNEL_CODE_HEAP_ID):
                {
                    pStr = "KernelCodeHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_KERNEL_DATA_HEAP_ID):
                {
                    pStr = "KernelDataHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_PIXELSHADER_HEAP_ID):
                {
                    pStr = "PixelShaderHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_VERTEXSHADER_HEAP_ID):
                {
                    pStr = "VertexShaderHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_PDSPIXEL_CODEDATA_HEAP_ID):
                {
                    pStr = "PDSPixelHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_PDSVERTEX_CODEDATA_HEAP_ID):
                {
                    pStr = "PDSVertexHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_SYNCINFO_HEAP_ID):
                {
                    pStr = "SyncInfoHeapPageSize";
                    break;
                }
                case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_3DPARAMETERS_HEAP_ID):
                {
                    pStr = "3DParametersHeapPageSize";
                    break;
                }
                default:
                {
                    /* not interested in other heaps */
                    pStr = IMG_NULL;
                    break;
                }
                }
                if (pStr
                        &&	OSReadRegistryDWORDFromString(0,
                                PVRSRV_REGISTRY_ROOT,
                                pStr,
                                &psDeviceMemoryHeap[i].ui32DataPageSize) == IMG_TRUE)
                {
                    PVR_DPF((PVR_DBG_VERBOSE,"SysInitialise: set Heap %s page size to %d", pStr, psDeviceMemoryHeap[i].ui32DataPageSize));
                }
#endif
                /*
                	map the device memory allocator(s) onto
                	the device memory heaps as required
                */
                psDeviceMemoryHeap[i].psLocalDevMemArena = gpsSysData->apsLocalDevMemArena[0];

                /* set the memory config (uma | non-uma) */
                psDeviceMemoryHeap[i].ui32Attribs |= ui32MemConfig;
            }

            break;
        }
        default:
            PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to find SGX device node!"));
            return PVRSRV_ERROR_INIT_FAILURE;
        }

        /* advance to next device */
        psDeviceNode = psDeviceNode->psNext;
    }

    /*
    	Initialise all devices 'managed' by services:
    */
    eError = PVRSRVInitialiseDevice (gui32SGXDeviceID);
    if (eError != PVRSRV_OK)
    {
        PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to initialise device!"));
        SysDeinitialise(gpsSysData);
        gpsSysData = IMG_NULL;
        return eError;
    }

#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
    DisableSGXClocks();
#endif

    return PVRSRV_OK;
}
Beispiel #3
0
PVRSRV_ERROR SysFinalise(IMG_VOID)
{
	PVRSRV_ERROR eError;
    
#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
	eError = EnableSGXClocks();
	if (eError != PVRSRV_OK)
	{
		PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to Enable SGX clocks (%d)", eError));
		(IMG_VOID)SysDeinitialise(gpsSysData);
		gpsSysData = IMG_NULL;
		return eError;
	}
#endif	
#if defined(SYS_USING_INTERRUPTS)

	eError = OSInstallMISR(gpsSysData);
	if (eError != PVRSRV_OK)
	{
		PVR_DPF((PVR_DBG_ERROR,"OSInstallMISR: Failed to install MISR"));
		SysDeinitialise(gpsSysData);
		gpsSysData = IMG_NULL;
		return eError;
	}
	gsSysSpecificData.ui32SysSpecificData |= SYS_SPECIFIC_DATA_ENABLE_MISR;

	
	eError = OSInstallSystemLISR(gpsSysData, gsSGXDeviceMap.ui32IRQ);
	if (eError != PVRSRV_OK)
	{
		PVR_DPF((PVR_DBG_ERROR,"OSInstallSystemLISR: Failed to install ISR"));
		OSUninstallMISR(gpsSysData);
		SysDeinitialise(gpsSysData);
		gpsSysData = IMG_NULL;
		return eError;
	}
	gsSysSpecificData.ui32SysSpecificData |= SYS_SPECIFIC_DATA_ENABLE_LISR;
	
//	SysEnableInterrupts(gpsSysData);
	gsSysSpecificData.ui32SysSpecificData |= SYS_SPECIFIC_DATA_ENABLE_IRQ;
#endif 

	
#if 0
	gpsSysData->pszVersionString = SysCreateVersionString(gsSGXDeviceMap.sRegsCpuPBase);
#else
	gpsSysData->pszVersionString=version_string;
#endif
	if (!gpsSysData->pszVersionString)
	{
		PVR_DPF((PVR_DBG_ERROR,"SysFinalise: Failed to create a system version string"));
    }
	else
	{
		;//PVR_DPF((PVR_DBG_WARNING, "SysFinalise: Version string: %s", gpsSysData->pszVersionString));//
	}

#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
	
	DisableSGXClocks();
#endif	
//	gsSysSpecificData.bSGXInitComplete= IMG_TRUE; don't know
	
	return PVRSRV_OK;
}
Beispiel #4
0
static INLINE PVRSRV_ERROR EnableSGXClocksWrap(SYS_DATA *psSysData)
{
	return EnableSGXClocks(psSysData);
}
Beispiel #5
0
PVRSRV_ERROR SysInitialise()
{
	IMG_UINT32			i;
	PVRSRV_ERROR 		eError;
	PVRSRV_DEVICE_NODE	*psDeviceNode;
	SGX_TIMING_INFORMATION*	psTimingInfo;
	struct platform_device	*pdev;

	gpsSysData = &gsSysData;
	OSMemSet(gpsSysData, 0, sizeof(SYS_DATA));

	pdev = gpsPVRLDMDev;
	g3d_pd_regulator = regulator_get(&pdev->dev, "pd");
	if (IS_ERR(g3d_pd_regulator)) {
		printk("\nG3D failed to find g3d power domain\n");
		return PVRSRV_ERROR_INIT_FAILURE;
	}

	g3d_clock = clk_get(&pdev->dev, "sclk");
	if (IS_ERR(g3d_clock)) {
		printk("\n3D failed to find g3d clock source-enable\n");
		return PVRSRV_ERROR_INIT_FAILURE;
	}

	EnableSGXClocks();

	eError = OSInitEnvData(&gpsSysData->pvEnvSpecificData);
	if (eError != PVRSRV_OK)
	{
		PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to setup env structure"));
		SysDeinitialise(gpsSysData);
		gpsSysData = IMG_NULL;
		return eError;
	}
#if defined(SGX540)
//printk("SGX540 defined\n");
#endif	
//printk("SGX_CORE_REV=%d\n",SGX_CORE_REV);
#if defined(SGX_FEATURE_SYSTEM_CACHE)
//printk("SGX_FEATURE_SYSTEM_CACHE defined!!!!!!!!!!!!!!\n");
#if defined(FIX_HW_BRN_25659)
//printk("FIX_HW_BRN_25659 defined!!!!!!!!!!!!!!\n");

#endif
#endif

#if defined(SGX_BYPASS_SYSTEM_CACHE)
//	printk("SGX_BYPASS_SYSTEM_CACHE defined!!!!!!!!!!!!!!!\n");
#endif

	gpsSysData->pvSysSpecificData = (IMG_PVOID)&gsSysSpecificData;
	OSMemSet(&gsSGXDeviceMap, 0, sizeof(SGX_DEVICE_MAP));
	
	
	psTimingInfo = &gsSGXDeviceMap.sTimingInfo;
	psTimingInfo->ui32CoreClockSpeed = SYS_SGX_CLOCK_SPEED;
	psTimingInfo->ui32HWRecoveryFreq = SYS_SGX_HWRECOVERY_TIMEOUT_FREQ; 
	psTimingInfo->ui32ActivePowManLatencyms = SYS_SGX_ACTIVE_POWER_LATENCY_MS; 
	psTimingInfo->ui32uKernelFreq = SYS_SGX_PDS_TIMER_FREQ; 

#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
	psTimingInfo->bEnableActivePM = IMG_TRUE;
#else	
	psTimingInfo->bEnableActivePM = IMG_FALSE;
#endif 
	gpsSysData->ui32NumDevices = SYS_DEVICE_COUNT;

	
	for(i=0; i<SYS_DEVICE_COUNT; i++)
	{
		gpsSysData->sDeviceID[i].uiID = i;
		gpsSysData->sDeviceID[i].bInUse = IMG_FALSE;
	}

	gpsSysData->psDeviceNodeList = IMG_NULL;
	gpsSysData->psQueueList = IMG_NULL;

	eError = SysInitialiseCommon(gpsSysData);
	if (eError != PVRSRV_OK)
	{
		PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed in SysInitialiseCommon"));
		SysDeinitialise(gpsSysData);
		gpsSysData = IMG_NULL;
		return eError;
	}

	
	eError = SysLocateDevices(gpsSysData);
	if (eError != PVRSRV_OK)
	{
		PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to locate devices"));
		SysDeinitialise(gpsSysData);
		gpsSysData = IMG_NULL;
		return eError;
	}

	
	eError = PVRSRVRegisterDevice(gpsSysData, SGXRegisterDevice, 1, &gui32SGXDeviceID);
	if (eError != PVRSRV_OK)
	{
		PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to register device!"));
		SysDeinitialise(gpsSysData);
		gpsSysData = IMG_NULL;
		return eError;
	}

		
	psDeviceNode = gpsSysData->psDeviceNodeList;
	while(psDeviceNode)
	{
		
		switch(psDeviceNode->sDevId.eDeviceType)
		{
			case PVRSRV_DEVICE_TYPE_SGX:
			{
				DEVICE_MEMORY_INFO *psDevMemoryInfo;
				DEVICE_MEMORY_HEAP_INFO *psDeviceMemoryHeap;
				IMG_UINT32 ui32MemConfig;

				if(gpsSysData->apsLocalDevMemArena[0] != IMG_NULL)
				{
					
					psDeviceNode->psLocalDevMemArena = gpsSysData->apsLocalDevMemArena[0];
					ui32MemConfig = PVRSRV_BACKINGSTORE_LOCALMEM_CONTIG;
				}
				else
				{
					
					psDeviceNode->psLocalDevMemArena = IMG_NULL;
					ui32MemConfig = PVRSRV_BACKINGSTORE_SYSMEM_NONCONTIG;
				}

				
				psDevMemoryInfo = &psDeviceNode->sDevMemoryInfo;
				psDeviceMemoryHeap = psDevMemoryInfo->psDeviceMemoryHeap;

				
				for(i=0; i<psDevMemoryInfo->ui32HeapCount; i++)
				{
#if defined(SGX_FEATURE_VARIABLE_MMU_PAGE_SIZE)
					IMG_CHAR *pStr;
								
					switch(psDeviceMemoryHeap[i].ui32HeapID)
					{
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_GENERAL_HEAP_ID):
						{
							pStr = "GeneralHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_GENERAL_MAPPING_HEAP_ID):
						{
							pStr = "GeneralMappingHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_TADATA_HEAP_ID):
						{
							pStr = "TADataHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_KERNEL_CODE_HEAP_ID):
						{
							pStr = "KernelCodeHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_KERNEL_DATA_HEAP_ID):
						{
							pStr = "KernelDataHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_PIXELSHADER_HEAP_ID):
						{
							pStr = "PixelShaderHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_VERTEXSHADER_HEAP_ID):
						{
							pStr = "VertexShaderHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_PDSPIXEL_CODEDATA_HEAP_ID):
						{
							pStr = "PDSPixelHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_PDSVERTEX_CODEDATA_HEAP_ID):
						{
							pStr = "PDSVertexHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_SYNCINFO_HEAP_ID):
						{
							pStr = "SyncInfoHeapPageSize";
							break;
						}
						case HEAP_ID(PVRSRV_DEVICE_TYPE_SGX, SGX_3DPARAMETERS_HEAP_ID):
						{
							pStr = "3DParametersHeapPageSize";
							break;
						}
						default:
						{
							
							pStr = IMG_NULL;
							break;	
						}
					}
					if (pStr 
					&&	OSReadRegistryDWORDFromString(0,
														PVRSRV_REGISTRY_ROOT,
														pStr,
														&psDeviceMemoryHeap[i].ui32DataPageSize) == IMG_TRUE)
					{
						PVR_DPF((PVR_DBG_VERBOSE,"SysInitialise: set Heap %s page size to %d", pStr, psDeviceMemoryHeap[i].ui32DataPageSize));
					}
#endif
					
					psDeviceMemoryHeap[i].psLocalDevMemArena = gpsSysData->apsLocalDevMemArena[0];

					
					psDeviceMemoryHeap[i].ui32Attribs |= ui32MemConfig;
				}

				break;
			}
			default:
				PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to find SGX device node!"));
				return PVRSRV_ERROR_INIT_FAILURE;
		}

		
		psDeviceNode = psDeviceNode->psNext;
	}



	PDUMPINIT();

	
	eError = PVRSRVInitialiseDevice (gui32SGXDeviceID);
	if (eError != PVRSRV_OK)
	{
		PVR_DPF((PVR_DBG_ERROR,"SysInitialise: Failed to initialise device!"));
		SysDeinitialise(gpsSysData);
		gpsSysData = IMG_NULL;
		return eError;
	}

#if defined(SUPPORT_ACTIVE_POWER_MANAGEMENT)
	
	DisableSGXClocks();
#endif

	return PVRSRV_OK;
}