/*************************************************************************/ /*!
@Title          Linux trace event helper functions
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@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
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The above copyright notice and this permission notice shall be included in
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
of GPL are applicable instead of those above.

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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
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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
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*/ /**************************************************************************/

#include <linux/version.h>
#include <linux/sched.h>

#include "img_types.h"
#include "trace_events.h"
#if !defined(SUPPORT_GPUTRACE_EVENTS)
#define CREATE_TRACE_POINTS
#endif
#include "rogue_trace_events.h"
#if defined(PVRSRV_USE_SYNC_CHECKPOINTS)
#include "sync_checkpoint_external.h"
#endif

static bool fence_update_event_enabled, fence_check_event_enabled;

bool trace_rogue_are_fence_updates_traced(void)
{
	return fence_update_event_enabled;
}

bool trace_rogue_are_fence_checks_traced(void)
{
	return fence_check_event_enabled;
}

/*
 * Call backs referenced from rogue_trace_events.h. Note that these are not
 * thread-safe, however, since running trace code when tracing is not enabled is
 * simply a no-op, there is no harm in it.
 */

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0))
int trace_fence_update_enabled_callback(void)
#else
void trace_fence_update_enabled_callback(void)
#endif
{
	fence_update_event_enabled = true;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0))
	return 0;
#endif
}

void trace_fence_update_disabled_callback(void)
{
	fence_update_event_enabled = false;
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0))
int trace_fence_check_enabled_callback(void)
#else
void trace_fence_check_enabled_callback(void)
#endif
{
	fence_check_event_enabled = true;

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0))
	return 0;
#endif
}

void trace_fence_check_disabled_callback(void)
{
	fence_check_event_enabled = false;
}

/* This is a helper that calls trace_rogue_fence_update for each fence in an
 * array.
 */
void trace_rogue_fence_updates(const char *cmd, const char *dm, IMG_UINT32 ui32FWContext,
							   IMG_UINT32 ui32Offset,
							   IMG_UINT uCount,
							   PRGXFWIF_UFO_ADDR *pauiAddresses,
							   IMG_UINT32 *paui32Values)
{
	IMG_UINT i;
	for (i = 0; i < uCount; i++)
	{
#if !defined(PVRSRV_USE_SYNC_CHECKPOINTS)
		trace_rogue_fence_update(current->comm, cmd, dm, ui32FWContext, ui32Offset,
								 pauiAddresses[i].ui32Addr, paui32Values[i]);
#else /* !defined(PVRSRV_USE_SYNC_CHECKPOINTS) */
		trace_rogue_fence_update(current->comm, cmd, dm, ui32FWContext, ui32Offset,
								 pauiAddresses[i].ui32Addr, PVRSRV_SYNC_CHECKPOINT_SIGNALLED);
#endif /* !defined(PVRSRV_USE_SYNC_CHECKPOINTS) */
	}
}

void trace_rogue_fence_checks(const char *cmd, const char *dm, IMG_UINT32 ui32FWContext,
							  IMG_UINT32 ui32Offset,
							  IMG_UINT uCount,
							  PRGXFWIF_UFO_ADDR *pauiAddresses,
							  IMG_UINT32 *paui32Values)
{
	IMG_UINT i;
	for (i = 0; i < uCount; i++)
	{
#if !defined(PVRSRV_USE_SYNC_CHECKPOINTS)
		trace_rogue_fence_check(current->comm, cmd, dm, ui32FWContext, ui32Offset,
							  pauiAddresses[i].ui32Addr, paui32Values[i]);
#else /* !defined(PVRSRV_USE_SYNC_CHECKPOINTS) */
		trace_rogue_fence_check(current->comm, cmd, dm, ui32FWContext, ui32Offset,
							  pauiAddresses[i].ui32Addr, PVRSRV_SYNC_CHECKPOINT_SIGNALLED);
#endif /* !defined(PVRSRV_USE_SYNC_CHECKPOINTS) */
	}
}

#if defined(SUPPORT_GPUTRACE_EVENTS)

void trace_rogue_ufo_updates(IMG_UINT64 ui64OSTimestamp,
							 IMG_UINT32 ui32FWCtx,
							 IMG_UINT32 ui32JobId,
							 IMG_UINT32 ui32UFOCount,
							 const RGX_HWPERF_UFO_DATA_ELEMENT *puData)
{
	IMG_UINT i;
	for (i = 0; i < ui32UFOCount; i++)
	{
		trace_rogue_ufo_update(ui64OSTimestamp, ui32FWCtx,
				ui32JobId,
				puData->sUpdate.ui32FWAddr,
				puData->sUpdate.ui32OldValue,
				puData->sUpdate.ui32NewValue);
		puData = (RGX_HWPERF_UFO_DATA_ELEMENT *) (((IMG_BYTE *) puData)
				+ sizeof(puData->sUpdate));
	}
}

void trace_rogue_ufo_checks_success(IMG_UINT64 ui64OSTimestamp,
									IMG_UINT32 ui32FWCtx,
									IMG_UINT32 ui32JobId,
									IMG_BOOL bPrEvent,
									IMG_UINT32 ui32UFOCount,
									const RGX_HWPERF_UFO_DATA_ELEMENT *puData)
{
	IMG_UINT i;
	for (i = 0; i < ui32UFOCount; i++)
	{
		if (bPrEvent)
		{
			trace_rogue_ufo_pr_check_success(ui64OSTimestamp, ui32FWCtx, ui32JobId,
					puData->sCheckSuccess.ui32FWAddr,
					puData->sCheckSuccess.ui32Value);
		}
		else
		{
			trace_rogue_ufo_check_success(ui64OSTimestamp, ui32FWCtx, ui32JobId,
					puData->sCheckSuccess.ui32FWAddr,
					puData->sCheckSuccess.ui32Value);
		}
		puData = (RGX_HWPERF_UFO_DATA_ELEMENT *) (((IMG_BYTE *) puData)
				+ sizeof(puData->sCheckSuccess));
	}
}

void trace_rogue_ufo_checks_fail(IMG_UINT64 ui64OSTimestamp,
								 IMG_UINT32 ui32FWCtx,
								 IMG_UINT32 ui32JobId,
								 IMG_BOOL bPrEvent,
								 IMG_UINT32 ui32UFOCount,
								 const RGX_HWPERF_UFO_DATA_ELEMENT *puData)
{
	IMG_UINT i;
	for (i = 0; i < ui32UFOCount; i++)
	{
		if (bPrEvent)
		{
			trace_rogue_ufo_pr_check_fail(ui64OSTimestamp, ui32FWCtx, ui32JobId,
					puData->sCheckFail.ui32FWAddr,
					puData->sCheckFail.ui32Value,
					puData->sCheckFail.ui32Required);
		}
		else
		{
			trace_rogue_ufo_check_fail(ui64OSTimestamp, ui32FWCtx, ui32JobId,
					puData->sCheckFail.ui32FWAddr,
					puData->sCheckFail.ui32Value,
					puData->sCheckFail.ui32Required);
		}
		puData = (RGX_HWPERF_UFO_DATA_ELEMENT *) (((IMG_BYTE *) puData)
				+ sizeof(puData->sCheckFail));
	}
}

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0))

int PVRGpuTraceEnableUfoCallbackWrapper(void)
{
	PVRGpuTraceEnableUfoCallback();

	return 0;
}

int PVRGpuTraceEnableFirmwareActivityCallbackWrapper(void)
{
	PVRGpuTraceEnableFirmwareActivityCallback();

	return 0;
}
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 10, 0)) */
#endif /* defined(SUPPORT_GPUTRACE_EVENTS) */