thead-kernel/drivers/gpu/drm/img-rogue/rgx_hwperf_table.h

/*************************************************************************/ /*!
@File
@Title          HWPerf counter table header
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@Description    Utility functions used internally for HWPerf data retrieval
@License        Dual MIT/GPLv2

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

#ifndef RGX_HWPERF_TABLE_H
#define RGX_HWPERF_TABLE_H

#include "img_types.h"
#include "img_defs.h"
#include "rgx_fwif_hwperf.h"
#if defined(__KERNEL__)
#include "rgxdevice.h"
#endif
/*****************************************************************************/

/* Forward declaration */
typedef struct RGXFW_HWPERF_CNTBLK_TYPE_MODEL_ RGXFW_HWPERF_CNTBLK_TYPE_MODEL;

/* Function pointer type for functions to check dynamic power state of
 * counter block instance. Used only in firmware. */
typedef bool (*PFN_RGXFW_HWPERF_CNTBLK_POWERED)(
		RGX_HWPERF_CNTBLK_ID eBlkType,
		IMG_UINT8 ui8UnitId);

#if defined(__KERNEL__)
/* Counter block run-time info */
typedef struct
{
	IMG_UINT32 ui32IndirectReg;          /* 0 if direct type otherwise the indirect control register to select indirect unit */
	IMG_UINT32 ui32NumUnits;             /* Number of instances of this block type in the core */
} RGX_HWPERF_CNTBLK_RT_INFO;
#endif

/* Function pointer type for functions to check block is valid and present
 * on that RGX Device at runtime. It may have compile logic or run-time
 * logic depending on where the code executes: server, srvinit or firmware.
 * Values in the psRtInfo output parameter are only valid if true returned.
 */
typedef IMG_BOOL (*PFN_RGXFW_HWPERF_CNTBLK_PRESENT)(
		const struct RGXFW_HWPERF_CNTBLK_TYPE_MODEL_* psBlkTypeDesc,
		const void *pvDev_km,
		void *pvRtInfo);

/* This structure encodes properties of a type of performance counter block.
 * The structure is sometimes referred to as a block type descriptor. These
 * properties contained in this structure represent the columns in the block
 * type model table variable below. These values vary depending on the build
 * BVNC and core type.
 * Each direct block has a unique type descriptor and each indirect group has
 * a type descriptor.
 */
struct RGXFW_HWPERF_CNTBLK_TYPE_MODEL_
{
	/* Could use RGXFW_ALIGN_DCACHEL here but then we would waste 40% of the cache line? */
	IMG_UINT32 ui32CntBlkIdBase;         /* The starting block id for this block type */
	IMG_UINT32 ui32IndirectReg;          /* 0 if direct type otherwise the indirect control register to select indirect unit */
	IMG_UINT32 ui32PerfReg;              /* RGX_CR_*_PERF register for this block type */
	IMG_UINT32 ui32Select0BaseReg;       /* RGX_CR_*_PERF_SELECT0 register for this block type */
	IMG_UINT32 ui32Counter0BaseReg;      /* RGX_CR_*_PERF_COUNTER_0 register for this block type */
	IMG_UINT8  ui8NumCounters;          /* Number of counters in this block type */
	IMG_UINT8  ui8NumUnits;             /* Number of instances of this block type in the core */
	IMG_UINT8  ui8SelectRegModeShift;   /* Mode field shift value of select registers */
	IMG_UINT8  ui8SelectRegOffsetShift; /* Interval between select registers, either 8 bytes or 16, hence << 3 or << 4 */
	const IMG_CHAR *pszBlockNameComment;             /* Name of the PERF register. Used while dumping the perf counters to pdumps */
	PFN_RGXFW_HWPERF_CNTBLK_POWERED pfnIsBlkPowered; /* A function to determine dynamic power state for the block type */
	PFN_RGXFW_HWPERF_CNTBLK_PRESENT pfnIsBlkPresent; /* A function to determine presence on RGX Device at run-time */
};

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

IMG_INTERNAL IMG_UINT32 RGXGetHWPerfBlockConfig(const RGXFW_HWPERF_CNTBLK_TYPE_MODEL **ppsModel);

#endif /* RGX_HWPERF_TABLE_H */

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