/*************************************************************************/ /*!
@File
@Title          RGX API Header kernel mode
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@Description    Exported RGX API details
@License        Dual MIT/GPLv2

The contents of this file are subject to the MIT license as set out below.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

Alternatively, the contents of this file may be used under the terms of
the GNU General Public License Version 2 ("GPL") in which case the provisions
of GPL are applicable instead of those above.

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GPL, and not to allow others to use your version of this file under the terms
of the MIT license, indicate your decision by deleting the provisions above
and replace them with the notice and other provisions required by GPL as set
out in the file called "GPL-COPYING" included in this distribution. If you do
not delete the provisions above, a recipient may use your version of this file
under the terms of either the MIT license or GPL.

This License is also included in this distribution in the file called
"MIT-COPYING".

EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/ /**************************************************************************/

#ifndef __RGXAPI_KM_H__
#define __RGXAPI_KM_H__

#if defined(SUPPORT_SHARED_SLC)
/*!
******************************************************************************

 @Function	RGXInitSLC

 @Description Init the SLC after a power up. It is required to call this 
              function if using SUPPORT_SHARED_SLC. Otherwise, it shouldn't
			  be called.

 @Input	   hDevHandle : RGX Device Node

 @Return   PVRSRV_ERROR :

******************************************************************************/
PVRSRV_ERROR RGXInitSLC(IMG_HANDLE hDevHandle);
#endif

#include "rgx_hwperf.h"


/******************************************************************************
 * RGX HW Performance Profiling Control API(s)
 *****************************************************************************/

typedef struct _RGX_HWPERF_DEVICE_
{
	IMG_CHAR pszName[20];	/* Helps identify this device uniquely */
	IMG_HANDLE hDevData;	/* Handle for the server */

	struct _RGX_HWPERF_DEVICE_ *psNext;
} RGX_HWPERF_DEVICE;

typedef struct
{
	RGX_HWPERF_DEVICE *psHWPerfDevList;
} RGX_HWPERF_CONNECTION;

/**************************************************************************/ /*!
@Function      RGXHWPerfLazyConnect
@Description   Obtain a HWPerf connection object to the RGX device(s). The
			   connections to devices are not actually opened until HWPerfOpen()
			   is called.
@Output        ppsHWPerfConnection     Address of a HWPerf connection object
@Return        PVRSRV_ERROR:  for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR RGXHWPerfLazyConnect(RGX_HWPERF_CONNECTION** ppsHWPerfConnection);


/**************************************************************************/ /*!
@Function      RGXHWPerfOpen
@Description   Opens connection(s) to the RGX device(s). Valid handle to the
			   connection object has to be provided which means the this
			   function needs to be preceded by the call to
			   RGXHWPerfLazyConnect() function.
@Input         psHWPerfConnection      HWPerf connection object
@Return        PVRSRV_ERROR:  for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR RGXHWPerfOpen(RGX_HWPERF_CONNECTION* psHWPerfConnection);


/**************************************************************************/ /*!
@Function      RGXHWPerfConnect
@Description   Obtain a connection object to the RGX HWPerf module. Allocated
			   connection object(s) reference opened connection(s).
			   Calling this function is an equivalent of calling
			   RGXHWPerfLazyConnect and RGXHWPerfOpen.
			   This connect should be used when the caller will be retrieving
			   event data.
@Output        ppsHWPerfConnection      Address of HWPerf connection object
@Return        PVRSRV_ERROR:  for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR RGXHWPerfConnect(RGX_HWPERF_CONNECTION** ppsHWPerfConnection);


/**************************************************************************/ /*!
@Function       RGXHWPerfFreeConnection
@Description    Frees the HWPerf connection object
@Input          ppsHWPerfConnection    Pointer to connection object as returned
                                      from RGXHWPerfLazyConnect()
@Return         PVRSRV_ERROR: for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR RGXHWPerfFreeConnection(RGX_HWPERF_CONNECTION** psHWPerfConnection);


/**************************************************************************/ /*!
@Function       RGXHWPerfClose
@Description    Closes all the opened connection(s) to RGX device(s)
@Input          psHWPerfConnection    Pointer to HWPerf connection object as
                                      returned from RGXHWPerfConnect() or RGXHWPerfOpen()
@Return         PVRSRV_ERROR: for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR RGXHWPerfClose(RGX_HWPERF_CONNECTION *psHWPerfConnection);


/**************************************************************************/ /*!
@Function       RGXHWPerfDisconnect
@Description    Disconnect from the RGX device
@Input          ppsHWPerfConnection   Pointer to HWPerf connection object as
                                      returned from RGXHWPerfConnect() or
									  RGXHWPerfOpen(). Calling this function is
									  an equivalent of calling RGXHWPerfClose
									  and RGXHWPerfFreeConnection.
@Return         PVRSRV_ERROR: for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR RGXHWPerfDisconnect(RGX_HWPERF_CONNECTION** ppsHWPerfConnection);


/**************************************************************************/ /*!
@Function       RGXHWPerfControl
@Description    Enable or disable the generation of RGX HWPerf event packets.
                 See RGXCtrlHWPerf().
@Input          psHWPerfConnection Pointer to HWPerf connection object
@Input			eStreamId		 ID of the HWPerf stream
@Input          bToggle          Switch to toggle or apply mask.
@Input          ui64Mask         Mask of events to control.
@Return         PVRSRV_ERROR:    for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR IMG_CALLCONV RGXHWPerfControl(
		RGX_HWPERF_CONNECTION *psHWPerfConnection,
		RGX_HWPERF_STREAM_ID eStreamId,
		IMG_BOOL             bToggle,
		IMG_UINT64           ui64Mask);


/**************************************************************************/ /*!
@Function       RGXHWPerfGetFilter
@Description    Reads HWPerf stream filter where stream is identified by
                the given stream ID.
@Input          hDevData        Handle to connection/device object
@Input          eStreamId       ID of the HWPerf stream
@Output         IMG_UINT64      HWPerf filter value
@Return         PVRSRV_ERROR:   for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR RGXHWPerfGetFilter(
		IMG_HANDLE  hDevData,
		RGX_HWPERF_STREAM_ID eStreamId,
		IMG_UINT64 *ui64Filter
);


/**************************************************************************/ /*!
@Function       RGXHWPerfConfigureAndEnableCounters
@Description    Enable and configure the performance counter block for
                 one or more device layout modules.
                 See RGXConfigureAndEnableHWPerfCounters().
@Input          psHWPerfConnection Pointer to HWPerf connection object
@Input          ui32NumBlocks    Number of elements in the array
@Input          asBlockConfigs   Address of the array of configuration blocks
@Return         PVRSRV_ERROR:    for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR IMG_CALLCONV RGXHWPerfConfigureAndEnableCounters(
		RGX_HWPERF_CONNECTION *psHWPerfConnection,
		IMG_UINT32                 ui32NumBlocks,
		RGX_HWPERF_CONFIG_CNTBLK*  asBlockConfigs);


/**************************************************************************/ /*!
@Function       RGXDisableHWPerfCounters
@Description    Disable the performance counter block for one or more
                 device layout modules. See RGXDisableHWPerfCounters().
@Input          psHWPerfConnection Pointer to HWPerf connection object
@Input          ui32NumBlocks   Number of elements in the array
@Input          aeBlockIDs      An array of bytes with values taken from
                                 the RGX_HWPERF_CNTBLK_ID enumeration.
@Return         PVRSRV_ERROR:   for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR IMG_CALLCONV RGXHWPerfDisableCounters(
		RGX_HWPERF_CONNECTION *psHWPerfConnection,
		IMG_UINT32   ui32NumBlocks,
		IMG_UINT16*   aeBlockIDs);

/**************************************************************************/ /*!
@Function       RGXEnableHWPerfCounters
@Description    Enable the performance counter block for one or more
                 device layout modules. See RGXEnableHWPerfCounters().
@Input          hDevData        Handle to connection/device object
@Input          ui32NumBlocks   Number of elements in the array
@Input          aeBlockIDs      An array of bytes with values taken from
                                 the RGX_HWPERF_CNTBLK_ID enumeration.
@Return         PVRSRV_ERROR:   for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR IMG_CALLCONV RGXHWPerfEnableCounters(
		IMG_HANDLE   hDevData,
		IMG_UINT32   ui32NumBlocks,
		IMG_UINT16*   aeBlockIDs);

/******************************************************************************
 * RGX HW Performance Profiling Retrieval API(s)
 *
 * The client must ensure their use of this acquire/release API for a single 
 * connection/stream must not be shared with multiple execution contexts e.g.
 * between a kernel thread and an ISR handler. It is the client’s
 * responsibility to ensure this API is not interrupted by a high priority
 * thread/ISR
 *****************************************************************************/

/**************************************************************************/ /*!
@Function       RGXHWPerfAcquireEvents
@Description    When there is data available to read this call returns with OK
                 and the address and length of the data buffer the
                 client can safely read. This buffer may contain one or more
                 event packets.
                 When there is no data to read, this call returns with OK
                 and sets *puiBufLen to 0 on exit.
				 Clients must pair this call with a ReleaseEvents call.
@Input          hDevData        Handle to connection/device object
@Input          eStreamId       ID of the HWPerf stream
@Output         ppBuf           Address of a pointer to a byte buffer. On exit
                                it contains the address of buffer to read from
@Output         pui32BufLen     Pointer to an integer. On exit it is the size
                                of the data to read from the buffer
@Return         PVRSRV_ERROR:   for system error codes
*/ /***************************************************************************/
PVRSRV_ERROR RGXHWPerfAcquireEvents(
		IMG_HANDLE  hDevData,
		RGX_HWPERF_STREAM_ID eStreamId,
		IMG_PBYTE*  ppBuf,
		IMG_UINT32* pui32BufLen);


/**************************************************************************/ /*!
@Function       RGXHWPerfReleaseEvents
@Description    Called after client has read the event data out of the buffer
                 retrieved from the Acquire Events call to release resources.
@Input          hDevData        Handle to connection/device object
@Input          eStreamId       ID of the HWPerf stream
@Return         PVRSRV_ERROR:   for system error codes
*/ /***************************************************************************/
IMG_INTERNAL
PVRSRV_ERROR RGXHWPerfReleaseEvents(
		IMG_HANDLE hDevData,
		RGX_HWPERF_STREAM_ID eStreamId);


/**************************************************************************/ /*!
@Function       RGXHWPerfConvertCRTimeStamp
@Description    Converts the timestamp given by FW events to the common OS
                timestamp. The first three inputs are obtained via
                a CLK_SYNC event, ui64CRTimeStamp is the CR timestamp
                from the FW event to be converted.
@Input          ui32ClkSpeed            Clock speed given by sync event
@Input          ui64CorrCRTimeStamp     CR Timestamp given by sync event
@Input          ui64CorrOSTimeStamp     Correlating OS Timestamp given by sync
                                        event
@Input          ui64CRTimeStamp         CR Timestamp to convert
@Return         IMG_UINT64:             Calculated OS Timestamp
 */ /**************************************************************************/
IMG_UINT64 RGXHWPerfConvertCRTimeStamp(
		IMG_UINT32 ui32ClkSpeed,
		IMG_UINT64 ui64CorrCRTimeStamp,
		IMG_UINT64 ui64CorrOSTimeStamp,
		IMG_UINT64 ui64CRTimeStamp);

#endif /* __RGXAPI_KM_H__ */

/******************************************************************************
 End of file (rgxapi_km.h)
******************************************************************************/