/*************************************************************************/ /*!
@File
@Title          RGX heap definitions
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@License        Dual MIT/GPLv2

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

#if !defined(__RGX_HEAPS_H__)
#define __RGX_HEAPS_H__

#include "km/rgxdefs_km.h"
#include "log2.h"
#include "pvr_debug.h"

/* RGX Heap IDs, note: not all heaps are available to clients */
/* N.B.  Old heap identifiers are deprecated now that the old memory
   management is. New heap identifiers should be suitably renamed */
#define RGX_UNDEFINED_HEAP_ID					(~0LU)			/*!< RGX Undefined Heap ID */
#define RGX_GENERAL_SVM_HEAP_ID					0				/*!< RGX General SVM (shared virtual memory) Heap ID */
#define RGX_GENERAL_HEAP_ID						1				/*!< RGX General Heap ID */
#define RGX_GENERAL_NON4K_HEAP_ID				2				/*!< RGX General none-4K Heap ID */
#define RGX_RGNHDR_BRN_63142_HEAP_ID			3				/*!< RGX RgnHdr BRN63142 Heap ID */
#define RGX_MMU_INIA_BRN_65273_ID				4				/*!< RGX MMU INIA Heap ID */
#define RGX_MMU_INIB_BRN_65273_ID				5				/*!< RGX MMU INIB Heap ID */
#define RGX_PDSCODEDATA_HEAP_ID					6				/*!< RGX PDS Code/Data Heap ID */
#define RGX_USCCODE_HEAP_ID						7				/*!< RGX USC Code Heap ID */
#define RGX_FIRMWARE_HEAP_ID					8				/*!< RGX Firmware Heap ID */
#define RGX_TQ3DPARAMETERS_HEAP_ID				9				/*!< RGX Firmware Heap ID */
#define RGX_BIF_TILING_HEAP_1_ID				10				/*!< RGX BIF Tiling Heap 1 ID */
#define RGX_BIF_TILING_HEAP_2_ID				11				/*!< RGX BIF Tiling Heap 2 ID */
#define RGX_BIF_TILING_HEAP_3_ID				12				/*!< RGX BIF Tiling Heap 3 ID */
#define RGX_BIF_TILING_HEAP_4_ID				13				/*!< RGX BIF Tiling Heap 4 ID */
#define RGX_HWBRN37200_HEAP_ID					14				/*!< RGX HWBRN37200 */
#define RGX_DOPPLER_HEAP_ID						15				/*!< Doppler Heap ID */
#define RGX_DOPPLER_OVERFLOW_HEAP_ID			16				/*!< Doppler Overflow Heap ID */
#define RGX_SERVICES_SIGNALS_HEAP_ID			17				/*!< Services Signals Heap ID */
#define RGX_SIGNALS_HEAP_ID						18				/*!< Signals Heap ID */
#define RGX_TDM_TPU_YUV_COEFFS_HEAP_ID          19
#define RGX_GUEST_FIRMWARE_HEAP_ID				20				/*!< Additional OSIDs Firmware */
#define RGX_MAX_HEAP_ID     	(RGX_GUEST_FIRMWARE_HEAP_ID + RGXFW_NUM_OS)	/*!< Max Valid Heap ID */

/*
  Identify heaps by their names
*/
#define RGX_GENERAL_SVM_HEAP_IDENT		"General SVM"			/*!< RGX General SVM (shared virtual memory) Heap Identifier */
#define RGX_GENERAL_HEAP_IDENT 			"General"               /*!< RGX General Heap Identifier */
#define RGX_GENERAL_NON4K_HEAP_IDENT	"General NON-4K"        /*!< RGX General non-4K Heap Identifier */
#define RGX_RGNHDR_BRN_63142_HEAP_IDENT "RgnHdr BRN63142"       /*!< RGX RgnHdr BRN63142 Heap Identifier */
#define RGX_MMU_INIA_BRN_65273_HEAP_IDENT "MMU INIA BRN65273"   /*!< MMU BRN65273 Heap A Identifier */
#define RGX_MMU_INIB_BRN_65273_HEAP_IDENT "MMU INIB BRN65273"   /*!< MMU BRN65273 Heap B Identifier */
#define RGX_PDSCODEDATA_HEAP_IDENT 		"PDS Code and Data"     /*!< RGX PDS Code/Data Heap Identifier */
#define RGX_USCCODE_HEAP_IDENT			"USC Code"              /*!< RGX USC Code Heap Identifier */
#define RGX_TQ3DPARAMETERS_HEAP_IDENT	"TQ3DParameters"        /*!< RGX TQ 3D Parameters Heap Identifier */
#define RGX_BIF_TILING_HEAP_1_IDENT	    "BIF Tiling Heap l"	    /*!< RGX BIF Tiling Heap 1 identifier */
#define RGX_BIF_TILING_HEAP_2_IDENT	    "BIF Tiling Heap 2"	    /*!< RGX BIF Tiling Heap 2 identifier */
#define RGX_BIF_TILING_HEAP_3_IDENT	    "BIF Tiling Heap 3"	    /*!< RGX BIF Tiling Heap 3 identifier */
#define RGX_BIF_TILING_HEAP_4_IDENT	    "BIF Tiling Heap 4"	    /*!< RGX BIF Tiling Heap 4 identifier */
#define RGX_DOPPLER_HEAP_IDENT			"Doppler"				/*!< Doppler Heap Identifier */
#define RGX_DOPPLER_OVERFLOW_HEAP_IDENT	"Doppler Overflow"		/*!< Doppler Heap Identifier */
#define RGX_SERVICES_SIGNALS_HEAP_IDENT	"Services Signals"		/*!< Services Signals Heap Identifier */
#define RGX_SIGNALS_HEAP_IDENT	        "Signals"		        /*!< Signals Heap Identifier */
#define RGX_VISTEST_HEAP_IDENT			"VisTest"				/*!< VisTest heap */
#define RGX_TDM_TPU_YUV_COEFFS_HEAP_IDENT "TDM TPU YUV Coeffs"

/* BIF tiling heaps have specific buffer requirements based on their XStride
 * configuration. This is detailed in the BIF tiling documentation and ensures
 * that the bits swapped by the BIF tiling algorithm do not result in addresses
 * outside the allocated buffer. The representation here reflects the diagram
 * in the BIF tiling documentation for tiling mode '0'.
 *
 * For tiling mode '1', the overall tile size does not change, width increases
 * to 2^9 but the height drops to 2^3.
 * This means the RGX_BIF_TILING_HEAP_ALIGN_LOG2_FROM_XSTRIDE macro can be
 * used for both modes.
 *
 * Previous TILING_HEAP_STRIDE macros are retired in preference to storing an
 * alignment to stride factor, derived from the tiling mode, with the tiling
 * heap configuration data.
 *
 * XStride is defined for a platform in sysconfig.h, but the resulting
 * alignment and stride factor can be queried through the
 * PVRSRVGetHeapLog2ImportAlignmentAndTilingStrideFactor() API.
 * For reference:
 *   Log2BufferStride = Log2Alignment - Log2AlignmentToTilingStrideFactor
 */
#define RGX_BIF_TILING_HEAP_ALIGN_LOG2_FROM_XSTRIDE(X)       (4+X+1+8)
#define RGX_BIF_TILING_HEAP_LOG2_ALIGN_TO_STRIDE_BASE              (4)

/*
 *  Supported log2 page size values for RGX_GENERAL_NON_4K_HEAP_ID
 */
#define RGX_HEAP_4KB_PAGE_SHIFT					(12)
#define RGX_HEAP_16KB_PAGE_SHIFT				(14)
#define RGX_HEAP_64KB_PAGE_SHIFT				(16)
#define RGX_HEAP_256KB_PAGE_SHIFT				(18)
#define RGX_HEAP_1MB_PAGE_SHIFT					(20)
#define RGX_HEAP_2MB_PAGE_SHIFT					(21)

/* Takes a log2 page size parameter and calculates a suitable page size
 * for the RGX heaps. Returns 0 if parameter is wrong.*/
static INLINE IMG_UINT32 RGXHeapDerivePageSize(IMG_UINT32 uiLog2PageSize)
{
	IMG_BOOL bFound = IMG_FALSE;

	/* OS page shift must be at least RGX_HEAP_4KB_PAGE_SHIFT,
	 * max RGX_HEAP_2MB_PAGE_SHIFT, non-zero and a power of two*/
	if ( uiLog2PageSize == 0 ||
		(uiLog2PageSize < RGX_HEAP_4KB_PAGE_SHIFT) ||
		(uiLog2PageSize > RGX_HEAP_2MB_PAGE_SHIFT))
	{
		PVR_DPF((PVR_DBG_ERROR,
				"%s: Provided incompatible log2 page size %u",
				__FUNCTION__,
				uiLog2PageSize));
		PVR_ASSERT(0);
		return 0;
	}

	do
	{
		switch (uiLog2PageSize)
		{
			case RGX_HEAP_4KB_PAGE_SHIFT:
			case RGX_HEAP_16KB_PAGE_SHIFT:
			case RGX_HEAP_64KB_PAGE_SHIFT:
			case RGX_HEAP_256KB_PAGE_SHIFT:
			case RGX_HEAP_1MB_PAGE_SHIFT:
			case RGX_HEAP_2MB_PAGE_SHIFT:
				/* All good, RGX page size equals given page size
				 * => use it as default for heaps */
				bFound = IMG_TRUE;
				break;
			default:
				/* We have to fall back to a smaller device
				 * page size than given page size because there
				 * is no exact match for any supported size. */
				uiLog2PageSize -= 1;
				break;
		}
	} while (!bFound);

	return uiLog2PageSize;
}


#endif /* __RGX_HEAPS_H__ */