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/****************************************************************************
*
* The MIT License (MIT)
*
* Copyright (c) 2014 Vivante Corporation
*
* 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 to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*****************************************************************************
*
* The GPL License (GPL)
*
* Copyright (C) 2014 Vivante Corporation
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*****************************************************************************
*
* Note: This software is released under dual MIT and GPL licenses. A
* recipient may use this file under the terms of either the MIT license or
* GPL License. If you wish to use only one license not the other, you can
* indicate your decision by deleting one of the above license notices in your
* version of this file.
*
*****************************************************************************/
#ifndef __gc_hal_kernel_buffer_h_
#define __gc_hal_kernel_buffer_h_
#ifdef __cplusplus
extern "C" {
#endif
/******************************************************************************\
************************ Command Buffer and Event Objects **********************
\******************************************************************************/
/* The number of context buffers per user. */
#define gcdCONTEXT_BUFFER_COUNT 2
/* State delta record. */
typedef struct _gcsSTATE_DELTA_RECORD * gcsSTATE_DELTA_RECORD_PTR;
typedef struct _gcsSTATE_DELTA_RECORD
{
/* State address. */
gctUINT address;
/* State mask. */
gctUINT32 mask;
/* State data. */
gctUINT32 data;
}
gcsSTATE_DELTA_RECORD;
/* State delta. */
typedef struct _gcsSTATE_DELTA
{
/* For debugging: the number of delta in the order of creation. */
#if gcmIS_DEBUG(gcdDEBUG_CODE)
gctUINT num;
#endif
/* Main state delta ID. Every time state delta structure gets reinitialized,
main ID is incremented. If main state ID overflows, all map entry IDs get
reinitialized to make sure there is no potential erroneous match after
the overflow.*/
gctUINT id;
/* The number of contexts pending modification by the delta. */
gctINT refCount;
/* Vertex element count for the delta buffer. */
gctUINT elementCount;
/* Number of states currently stored in the record array. */
gctUINT recordCount;
/* Record array; holds all modified states in gcsSTATE_DELTA_RECORD. */
gctUINT64 recordArray;
/* Map entry ID is used for map entry validation. If map entry ID does not
match the main state delta ID, the entry and the corresponding state are
considered not in use. */
gctUINT64 mapEntryID;
gctUINT mapEntryIDSize;
/* If the map entry ID matches the main state delta ID, index points to
the state record in the record array. */
gctUINT64 mapEntryIndex;
/* Previous and next state deltas in gcsSTATE_DELTA. */
gctUINT64 prev;
gctUINT64 next;
}
gcsSTATE_DELTA;
/* Command buffer patch record. */
struct _gcsPATCH
{
/* Pointer within the buffer. */
gctUINT32_PTR pointer;
/* 32-bit data to write at the specified offset. */
gctUINT32 data;
};
/* List of patches for the command buffer. */
struct _gcsPATCH_LIST
{
/* Array of patch records. */
struct _gcsPATCH patch[1024];
/* Number of patches in the array. */
gctUINT count;
/* Next item in the list. */
struct _gcsPATCH_LIST *next;
};
/* Command buffer object. */
struct _gcoCMDBUF
{
/* The object. */
gcsOBJECT object;
/* Commit count. */
gctUINT64 commitCount;
/* Command buffer entry and exit pipes. */
gcePIPE_SELECT entryPipe;
gcePIPE_SELECT exitPipe;
/* Feature usage flags. */
gctBOOL using2D;
gctBOOL using3D;
gctBOOL usingFilterBlit;
gctBOOL usingPalette;
/* Physical address of command buffer. Just a name. */
gctUINT32 physical;
/* Logical address of command buffer. */
gctUINT64 logical;
/* Number of bytes in command buffer. */
gctUINT32 bytes;
/* Start offset into the command buffer. */
gctUINT32 startOffset;
/* Current offset into the command buffer. */
gctUINT32 offset;
/* Number of free bytes in command buffer. */
gctUINT32 free;
/* Location of the last reserved area. */
gctUINT64 lastReserve;
gctUINT32 lastOffset;
#if gcdSECURE_USER
/* Hint array for the current command buffer. */
gctUINT hintArraySize;
gctUINT64 hintArray;
gctUINT64 hintArrayTail;
#endif
#if gcmIS_DEBUG(gcdDEBUG_CODE)
/* Last load state command location and hardware address. */
gctUINT64 lastLoadStatePtr;
gctUINT32 lastLoadStateAddress;
gctUINT32 lastLoadStateCount;
#endif
/* Completion signal. */
gctSIGNAL signal;
/* List of patches. */
struct _gcsPATCH_LIST *patchHead;
struct _gcsPATCH_LIST *patchTail;
/* Link to the siblings. */
gcoCMDBUF prev;
gcoCMDBUF next;
};
typedef struct _gcsQUEUE
{
/* Pointer to next gcsQUEUE structure in gcsQUEUE. */
gctUINT64 next;
/* Event information. */
gcsHAL_INTERFACE iface;
}
gcsQUEUE;
/* Event queue. */
struct _gcoQUEUE
{
/* The object. */
gcsOBJECT object;
/* Pointer to current event queue. */
gcsQUEUE_PTR head;
gcsQUEUE_PTR tail;
/* chunks of the records. */
gctPOINTER chunks;
/* List of free records. */
gcsQUEUE_PTR freeList;
#define gcdIN_QUEUE_RECORD_LIMIT 16
/* Number of records currently in queue */
gctUINT32 recordCount;
};
struct _gcsTEMPCMDBUF
{
gctUINT32 currentByteSize;
gctPOINTER buffer;
gctBOOL inUse;
};
#ifdef __cplusplus
}
#endif
#endif /* __gc_hal_kernel_buffer_h_ */
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