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/****************************************************************************
*
* Copyright (C) 2005 - 2012 by Vivante Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the license, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*****************************************************************************/
#ifndef __gc_hal_kernel_context_h_
#define __gc_hal_kernel_context_h_
#include "gc_hal.h"
typedef struct _gckEVENT * gckEVENT;
/* Maps state locations within the context buffer. */
typedef struct _gcsSTATE_MAP * gcsSTATE_MAP_PTR;
typedef struct _gcsSTATE_MAP
{
/* Index of the state in the context buffer. */
unsigned int index;
/* State mask. */
u32 mask;
}
gcsSTATE_MAP;
/* Context buffer. */
typedef struct _gcsCONTEXT * gcsCONTEXT_PTR;
typedef struct _gcsCONTEXT
{
/* For debugging: the number of context buffer in the order of creation. */
#if gcmIS_DEBUG(gcdDEBUG_CODE)
unsigned int num;
#endif
/* Pointer to gckEVENT object. */
gckEVENT eventObj;
/* Context busy signal. */
gctSIGNAL signal;
/* Physical address of the context buffer. */
gctPHYS_ADDR physical;
/* Logical address of the context buffer. */
u32 * logical;
/* Pointer to the LINK commands. */
void * link2D;
void * link3D;
/* The number of pending state deltas. */
unsigned int deltaCount;
/* Pointer to the first delta to be applied. */
struct _gcsSTATE_DELTA * delta;
/* Next context buffer. */
gcsCONTEXT_PTR next;
}
gcsCONTEXT;
/* gckCONTEXT structure that hold the current context. */
struct _gckCONTEXT
{
/* Object. */
gcsOBJECT object;
/* Pointer to gckOS object. */
gckOS os;
/* Pointer to gckHARDWARE object. */
gckHARDWARE hardware;
/* Command buffer alignment. */
size_t alignment;
size_t reservedHead;
size_t reservedTail;
/* Context buffer metrics. */
size_t stateCount;
size_t totalSize;
size_t bufferSize;
u32 linkIndex2D;
u32 linkIndex3D;
u32 linkIndexXD;
u32 entryOffset3D;
u32 entryOffsetXDFrom2D;
u32 entryOffsetXDFrom3D;
/* Dirty flags. */
int dirty;
int dirty2D;
int dirty3D;
gcsCONTEXT_PTR dirtyBuffer;
/* State mapping. */
gcsSTATE_MAP_PTR map;
/* List of context buffers. */
gcsCONTEXT_PTR buffer;
/* A copy of the user record array. */
unsigned int recordArraySize;
struct _gcsSTATE_DELTA_RECORD *recordArray;
/* Requested pipe select for context. */
gcePIPE_SELECT entryPipe;
gcePIPE_SELECT exitPipe;
/* Variables used for building state buffer. */
u32 lastAddress;
size_t lastSize;
u32 lastIndex;
int lastFixed;
/* Hint array. */
#if gcdSECURE_USER
int * hint;
#endif
};
#endif /* __gc_hal_kernel_context_h_ */
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