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/****************************************************************************
*
* Copyright (C) 2005 - 2011 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_kernel_buffer.h"
#ifdef __cplusplus
extern "C" {
#endif
/* 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. */
gctUINT index;
/* State mask. */
gctUINT32 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)
gctUINT 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. */
gctUINT32_PTR logical;
/* Pointer to the LINK commands. */
gctPOINTER link2D;
gctPOINTER link3D;
/* The number of pending state deltas. */
gctUINT deltaCount;
/* Pointer to the first delta to be applied. */
gcsSTATE_DELTA_PTR 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. */
gctSIZE_T alignment;
gctSIZE_T reservedHead;
gctSIZE_T reservedTail;
/* Context buffer metrics. */
gctSIZE_T stateCount;
gctSIZE_T totalSize;
gctSIZE_T bufferSize;
gctUINT32 linkIndex2D;
gctUINT32 linkIndex3D;
gctUINT32 linkIndexXD;
gctUINT32 entryOffset3D;
gctUINT32 entryOffsetXDFrom2D;
gctUINT32 entryOffsetXDFrom3D;
/* Dirty flags. */
gctBOOL dirty;
gctBOOL dirty2D;
gctBOOL dirty3D;
gcsCONTEXT_PTR dirtyBuffer;
/* State mapping. */
gcsSTATE_MAP_PTR map;
/* List of context buffers. */
gcsCONTEXT_PTR buffer;
/* A copy of the user record array. */
gctUINT recordArraySize;
gcsSTATE_DELTA_RECORD_PTR recordArray;
/* Requested pipe select for context. */
gcePIPE_SELECT entryPipe;
gcePIPE_SELECT exitPipe;
/* Variables used for building state buffer. */
gctUINT32 lastAddress;
gctSIZE_T lastSize;
gctUINT32 lastIndex;
gctBOOL lastFixed;
/* Hint array. */
#if gcdSECURE_USER
gctBOOL_PTR hint;
#endif
};
#ifdef __cplusplus
}
#endif
#endif /* __gc_hal_kernel_context_h_ */
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