/**************************************************************************/ /*!
@File
@Title          PVR Bridge Functionality
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@Description    Header for the PVR Bridge code
@License        Dual MIT/GPLv2

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

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of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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all copies or substantial portions of the Software.

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the GNU General Public License Version 2 ("GPL") in which case the provisions
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and replace them with the notice and other provisions required by GPL as set
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not delete the provisions above, a recipient may use your version of this file
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"MIT-COPYING".

EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
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*/ /***************************************************************************/

#ifndef __BRIDGED_PVR_BRIDGE_H__
#define __BRIDGED_PVR_BRIDGE_H__

#include "lock_types.h"
#include "connection_server.h"
#include "pvr_debug.h"

#include "pvr_bridge.h"
#if defined(SUPPORT_RGX)
#include "rgx_bridge.h"
#endif

PVRSRV_ERROR
CopyFromUserWrapper(CONNECTION_DATA *psConnection,
					IMG_UINT32 ui32DispatchTableEntry,
					void *pvDest,
					void *pvSrc,
					IMG_UINT32 ui32Size);
PVRSRV_ERROR
CopyToUserWrapper(CONNECTION_DATA *psConnection, 
				  IMG_UINT32 ui32DispatchTableEntry,
				  void *pvDest,
				  void *pvSrc,
				  IMG_UINT32 ui32Size);

IMG_INT
DummyBW(IMG_UINT32 ui32DispatchTableEntry,
		void *psBridgeIn,
		void *psBridgeOut,
		CONNECTION_DATA *psConnection);

typedef IMG_INT (*BridgeWrapperFunction)(IMG_UINT32 ui32DispatchTableEntry,
									 void *psBridgeIn,
									 void *psBridgeOut,
									 CONNECTION_DATA *psConnection);

typedef struct _PVRSRV_BRIDGE_DISPATCH_TABLE_ENTRY
{
	BridgeWrapperFunction pfFunction; /*!< The wrapper function that validates the ioctl
										arguments before calling into srvkm proper */
	POS_LOCK	hBridgeLock;	/*!< The bridge lock which needs to be acquired 
						before calling the above wrapper */
	IMG_BOOL    bUseLock;                 /*!< Specify whether to use a bridge lock at all */
#if defined(DEBUG_BRIDGE_KM)
	const IMG_CHAR *pszIOCName; /*!< Name of the ioctl: e.g. "PVRSRV_BRIDGE_CONNECT_SERVICES" */
	const IMG_CHAR *pszFunctionName; /*!< Name of the wrapper function: e.g. "PVRSRVConnectBW" */
	const IMG_CHAR *pszBridgeLockName;	/*!< Name of bridge lock which will be acquired */
	IMG_UINT32 ui32CallCount; /*!< The total number of times the ioctl has been called */
	IMG_UINT32 ui32CopyFromUserTotalBytes; /*!< The total number of bytes copied from
											 userspace within this ioctl */
	IMG_UINT32 ui32CopyToUserTotalBytes; /*!< The total number of bytes copied from
										   userspace within this ioctl */
	IMG_UINT64 ui64TotalTimeNS; /*!< The total amount of time spent in this bridge function */
	IMG_UINT64 ui64MaxTimeNS; /*!< The maximum amount of time for a single call to this bridge function */
#endif
}PVRSRV_BRIDGE_DISPATCH_TABLE_ENTRY;

#if defined(SUPPORT_RGX)
	#define BRIDGE_DISPATCH_TABLE_ENTRY_COUNT  (PVRSRV_BRIDGE_RGX_DISPATCH_LAST+1)
	#define BRIDGE_DISPATCH_TABLE_START_ENTRY_COUNT  (PVRSRV_BRIDGE_RGX_LAST+1)
#else
	#define BRIDGE_DISPATCH_TABLE_ENTRY_COUNT  (PVRSRV_BRIDGE_DISPATCH_LAST+1)
	#define BRIDGE_DISPATCH_TABLE_START_ENTRY_COUNT  (PVRSRV_BRIDGE_LAST+1)
#endif

extern PVRSRV_BRIDGE_DISPATCH_TABLE_ENTRY g_BridgeDispatchTable[BRIDGE_DISPATCH_TABLE_ENTRY_COUNT];

void BridgeDispatchTableStartOffsetsInit(void);

void
_SetDispatchTableEntry(IMG_UINT32 ui32BridgeGroup,
					   IMG_UINT32 ui32Index,
					   const IMG_CHAR *pszIOCName,
					   BridgeWrapperFunction pfFunction,
					   const IMG_CHAR *pszFunctionName,
					   POS_LOCK hBridgeLock,
					   const IMG_CHAR* pszBridgeLockName,
					   IMG_BOOL bUseLock );


/* PRQA S 0884,3410 2*/ /* macro relies on the lack of brackets */
#define SetDispatchTableEntry(ui32BridgeGroup, ui32Index, pfFunction,\
					hBridgeLock, bUseLock) \
	_SetDispatchTableEntry(ui32BridgeGroup, ui32Index, #ui32Index, (BridgeWrapperFunction)pfFunction, #pfFunction,\
							(POS_LOCK)hBridgeLock, #hBridgeLock, bUseLock )

#define DISPATCH_TABLE_GAP_THRESHOLD 5


#if defined(DEBUG_BRIDGE_KM)
typedef struct _PVRSRV_BRIDGE_GLOBAL_STATS
{
	IMG_UINT32 ui32IOCTLCount;
	IMG_UINT32 ui32TotalCopyFromUserBytes;
	IMG_UINT32 ui32TotalCopyToUserBytes;
} PVRSRV_BRIDGE_GLOBAL_STATS;

/* OS specific code may want to report the stats held here and within the
 * BRIDGE_DISPATCH_TABLE_ENTRYs (E.g. on Linux we report these via a
 * debugfs entry /sys/kernel/debug/pvr/bridge_stats) */
extern PVRSRV_BRIDGE_GLOBAL_STATS g_BridgeGlobalStats;
#endif

PVRSRV_ERROR BridgeInit(void);
void BridgeDeinit(void);

PVRSRV_ERROR BridgedDispatchKM(CONNECTION_DATA * psConnection,
					  PVRSRV_BRIDGE_PACKAGE   * psBridgePackageKM);


PVRSRV_ERROR
PVRSRVConnectKM(CONNECTION_DATA *psConnection,
                PVRSRV_DEVICE_NODE * psDeviceNode,
				IMG_UINT32 ui32Flags,
				IMG_UINT32 ui32ClientBuildOptions,
				IMG_UINT32 ui32ClientDDKVersion,
				IMG_UINT32 ui32ClientDDKBuild,
				IMG_UINT8  *pui8KernelArch,
				IMG_UINT32 *ui32CapabilityFlags,
				IMG_UINT32 *ui32PVRBridges,
				IMG_UINT32 *ui32RGXBridges);

PVRSRV_ERROR
PVRSRVDisconnectKM(void);

PVRSRV_ERROR
PVRSRVAcquireGlobalEventObjectKM(IMG_HANDLE *phGlobalEventObject);

PVRSRV_ERROR
PVRSRVReleaseGlobalEventObjectKM(IMG_HANDLE hGlobalEventObject);

PVRSRV_ERROR
PVRSRVDumpDebugInfoKM(CONNECTION_DATA *psConnection,
					  PVRSRV_DEVICE_NODE *psDeviceNode,
					  IMG_UINT32 ui32VerbLevel);

PVRSRV_ERROR
PVRSRVGetDevClockSpeedKM(CONNECTION_DATA * psConnection,
                         PVRSRV_DEVICE_NODE *psDeviceNode,
                         IMG_PUINT32  pui32RGXClockSpeed);

PVRSRV_ERROR
PVRSRVHWOpTimeoutKM(CONNECTION_DATA *psConnection,
					PVRSRV_DEVICE_NODE *psDeviceNode);

PVRSRV_ERROR PVRSRVAlignmentCheckKM(CONNECTION_DATA *psConnection,
                                    PVRSRV_DEVICE_NODE * psDeviceNode,
                                    IMG_UINT32 ui32FWAlignChecksSize,
                                    IMG_UINT32 aui32FWAlignChecks[]);

PVRSRV_ERROR PVRSRVGetDeviceStatusKM(CONNECTION_DATA *psConnection,
                                     PVRSRV_DEVICE_NODE *psDeviceNode,
                                     IMG_UINT32 *pui32DeviceStatus);

PVRSRV_ERROR PVRSRVFindProcessMemStatsKM(IMG_PID pid,
                                         IMG_UINT32 ui32ArrSize,
                                         IMG_BOOL bAllProcessStats,
                                         IMG_UINT32 *ui32MemoryStats);

#endif /* __BRIDGED_PVR_BRIDGE_H__ */

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