/*!
******************************************************************************
@Function PVRSRVDevicePreClockSpeedChange
@Description
Notification from system layer that a device clock speed change is about to happen.
@Input ui32DeviceIndex : device index
@Input bIdleDevice : whether the device should be idled
@Input pvInfo
@Return IMG_VOID
******************************************************************************/
PVRSRV_ERROR PVRSRVDevicePreClockSpeedChange(IMG_UINT32 ui32DeviceIndex,
IMG_BOOL bIdleDevice,
IMG_VOID *pvInfo)
{
PVRSRV_ERROR eError = PVRSRV_OK;
PVRSRV_DATA *psPVRSRVData = PVRSRVGetPVRSRVData();
PVRSRV_POWER_DEV *psPowerDevice;
PVR_UNREFERENCED_PARAMETER(pvInfo);
/*search the device and then do the pre clock speed change*/
psPowerDevice = (PVRSRV_POWER_DEV*)
List_PVRSRV_POWER_DEV_Any_va(psPVRSRVData->psPowerDeviceList,
&MatchPowerDeviceIndex_AnyVaCb,
ui32DeviceIndex);
do
{
/* This mutex is released in PVRSRVDevicePostClockSpeedChange. */
eError = PVRSRVPowerLock();
if (eError != PVRSRV_OK)
{
PVR_DPF((PVR_DBG_ERROR, "PVRSRVDevicePreClockSpeedChange : failed to acquire lock, error:0x%x", eError));
return eError;
}
if (psPowerDevice && psPowerDevice->pfnPostClockSpeedChange)
{
eError = psPowerDevice->pfnPreClockSpeedChange(psPowerDevice->hDevCookie,
bIdleDevice,
psPowerDevice->eCurrentPowerState);
if ((eError != PVRSRV_OK) && (eError != PVRSRV_ERROR_DEVICE_POWER_CHANGE_DENIED))
{
PVR_DPF((PVR_DBG_ERROR,
"PVRSRVDevicePreClockSpeedChange : Device %u failed, error:0x%x",
ui32DeviceIndex, eError));
}
else if (eError == PVRSRV_ERROR_DEVICE_POWER_CHANGE_DENIED)
{
PVR_DPF((PVR_DBG_MESSAGE,
"PVRSRVDevicePreClockSpeedChange : Device %u denied transition to IDLE",
ui32DeviceIndex));
PVRSRVPowerUnlock();
OSSleepms(1);
}
}
}
while (eError == PVRSRV_ERROR_DEVICE_POWER_CHANGE_DENIED);
if (eError != PVRSRV_OK)
{
PVRSRVPowerUnlock();
}
return eError;
}
IMG_EXPORT
PVRSRV_ERROR IMG_CALLCONV PollForValueKM (volatile IMG_UINT32* pui32LinMemAddr,
IMG_UINT32 ui32Value,
IMG_UINT32 ui32Mask,
IMG_UINT32 ui32Timeoutus,
IMG_UINT32 ui32PollPeriodus,
IMG_BOOL bAllowPreemption)
{
{
IMG_UINT32 ui32ActualValue = 0xFFFFFFFFU;
if (bAllowPreemption)
{
PVR_ASSERT(ui32PollPeriodus >= 1000);
}
LOOP_UNTIL_TIMEOUT(ui32Timeoutus)
{
ui32ActualValue = (*pui32LinMemAddr & ui32Mask);
if(ui32ActualValue == ui32Value)
{
return PVRSRV_OK;
}
if (bAllowPreemption)
{
OSSleepms(ui32PollPeriodus / 1000);
}
else
{
OSWaitus(ui32PollPeriodus);
}
}
END_LOOP_UNTIL_TIMEOUT();
PVR_DPF((PVR_DBG_ERROR,"PollForValueKM: Timeout. Expected 0x%x but found 0x%x (mask 0x%x).",
ui32Value, ui32ActualValue, ui32Mask));
}
return PVRSRV_ERROR_TIMEOUT;
}
IMG_EXPORT
PVRSRV_ERROR IMG_CALLCONV PollForValueKM (volatile IMG_UINT32* pui32LinMemAddr,
IMG_UINT32 ui32Value,
IMG_UINT32 ui32Mask,
IMG_UINT32 ui32Timeoutus,
IMG_UINT32 ui32PollPeriodus,
IMG_BOOL bAllowPreemption)
{
#if defined (EMULATOR)
{
PVR_UNREFERENCED_PARAMETER(bAllowPreemption);
#if !defined(__linux__)
PVR_UNREFERENCED_PARAMETER(ui32PollPeriodus);
#endif
do
{
if((*pui32LinMemAddr & ui32Mask) == ui32Value)
{
return PVRSRV_OK;
}
#if defined(__linux__)
OSWaitus(ui32PollPeriodus);
#else
OSReleaseThreadQuanta();
#endif
} while (ui32Timeoutus);
}
#else
{
IMG_UINT32 ui32ActualValue = 0xFFFFFFFFU;
if (bAllowPreemption)
{
PVR_ASSERT(ui32PollPeriodus >= 1000);
}
LOOP_UNTIL_TIMEOUT(ui32Timeoutus)
{
ui32ActualValue = (*pui32LinMemAddr & ui32Mask);
if(ui32ActualValue == ui32Value)
{
return PVRSRV_OK;
}
if (bAllowPreemption)
{
OSSleepms(ui32PollPeriodus / 1000);
}
else
{
OSWaitus(ui32PollPeriodus);
}
} END_LOOP_UNTIL_TIMEOUT();
PVR_DPF((PVR_DBG_ERROR,"PollForValueKM: Timeout. Expected 0x%x but found 0x%x (mask 0x%x).",
ui32Value, ui32ActualValue, ui32Mask));
}
#endif
return PVRSRV_ERROR_TIMEOUT;
}
IMG_EXPORT
PVRSRV_ERROR IMG_CALLCONV PollForValueKM (volatile IMG_UINT32* pui32LinMemAddr,
IMG_UINT32 ui32Value,
IMG_UINT32 ui32Mask,
IMG_UINT32 ui32Timeoutus,
IMG_UINT32 ui32PollPeriodus,
IMG_BOOL bAllowPreemption)
{
#if defined (EMULATOR)
{
PVR_UNREFERENCED_PARAMETER(bAllowPreemption);
#if !defined(__linux__)
PVR_UNREFERENCED_PARAMETER(ui32PollPeriodus);
#endif
/* For the Emulator we want the system to stop when a lock-up is detected so the state can be analysed.
* Also the Emulator is much slower than real silicon so timeouts are not valid.
*/
do
{
if((*pui32LinMemAddr & ui32Mask) == ui32Value)
{
return PVRSRV_OK;
}
#if defined(__linux__)
OSWaitus(ui32PollPeriodus);
#else
OSReleaseThreadQuanta();
#endif
} while (ui32Timeoutus); /* Endless loop only for the Emulator */
}
#else
{
IMG_UINT32 ui32ActualValue = 0xFFFFFFFFU; /* Initialiser only required to prevent incorrect warning */
if (bAllowPreemption)
{
PVR_ASSERT(ui32PollPeriodus >= 1000);
}
/* PRQA S 3415,4109 1 */ /* macro format critical - leave alone */
LOOP_UNTIL_TIMEOUT(ui32Timeoutus)
{
ui32ActualValue = (*pui32LinMemAddr & ui32Mask);
if(ui32ActualValue == ui32Value)
{
return PVRSRV_OK;
}
if (bAllowPreemption)
{
OSSleepms(ui32PollPeriodus / 1000);
}
else
{
OSWaitus(ui32PollPeriodus);
}
} END_LOOP_UNTIL_TIMEOUT();
PVR_DPF((PVR_DBG_ERROR,"PollForValueKM: Timeout. Expected 0x%x but found 0x%x (mask 0x%x).",
ui32Value, ui32ActualValue, ui32Mask));
}
#endif /* #if defined (EMULATOR) */
return PVRSRV_ERROR_TIMEOUT;
}
