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      1 /*	$NetBSD: svga3d_caps.h,v 1.3 2021/12/18 23:45:45 riastradh Exp $	*/
      2 
      3 /* SPDX-License-Identifier: GPL-2.0 OR MIT */
      4 /**********************************************************
      5  * Copyright 2007-2015 VMware, Inc.
      6  *
      7  * Permission is hereby granted, free of charge, to any person
      8  * obtaining a copy of this software and associated documentation
      9  * files (the "Software"), to deal in the Software without
     10  * restriction, including without limitation the rights to use, copy,
     11  * modify, merge, publish, distribute, sublicense, and/or sell copies
     12  * of the Software, and to permit persons to whom the Software is
     13  * furnished to do so, subject to the following conditions:
     14  *
     15  * The above copyright notice and this permission notice shall be
     16  * included in all copies or substantial portions of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
     21  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
     22  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
     23  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     25  * SOFTWARE.
     26  *
     27  **********************************************************/
     28 
     29 /*
     30  * svga3d_caps.h --
     31  *
     32  *       Definitions for SVGA3D hardware capabilities.  Capabilities
     33  *       are used to query for optional rendering features during
     34  *       driver initialization. The capability data is stored as very
     35  *       basic key/value dictionary within the "FIFO register" memory
     36  *       area at the beginning of BAR2.
     37  *
     38  *       Note that these definitions are only for 3D capabilities.
     39  *       The SVGA device also has "device capabilities" and "FIFO
     40  *       capabilities", which are non-3D-specific and are stored as
     41  *       bitfields rather than key/value pairs.
     42  */
     43 
     44 #ifndef _SVGA3D_CAPS_H_
     45 #define _SVGA3D_CAPS_H_
     46 
     47 #define INCLUDE_ALLOW_MODULE
     48 #define INCLUDE_ALLOW_USERLEVEL
     49 
     50 #include "includeCheck.h"
     51 
     52 #include "svga_reg.h"
     53 
     54 #define SVGA_FIFO_3D_CAPS_SIZE   (SVGA_FIFO_3D_CAPS_LAST - \
     55                                   SVGA_FIFO_3D_CAPS + 1)
     56 
     57 
     58 /*
     59  * SVGA3dCapsRecordType
     60  *
     61  *    Record types that can be found in the caps block.
     62  *    Related record types are grouped together numerically so that
     63  *    SVGA3dCaps_FindRecord() can be applied on a range of record
     64  *    types.
     65  */
     66 
     67 typedef enum {
     68    SVGA3DCAPS_RECORD_UNKNOWN        = 0,
     69    SVGA3DCAPS_RECORD_DEVCAPS_MIN    = 0x100,
     70    SVGA3DCAPS_RECORD_DEVCAPS        = 0x100,
     71    SVGA3DCAPS_RECORD_DEVCAPS_MAX    = 0x1ff,
     72 } SVGA3dCapsRecordType;
     73 
     74 
     75 /*
     76  * SVGA3dCapsRecordHeader
     77  *
     78  *    Header field leading each caps block record. Contains the offset (in
     79  *    register words, NOT bytes) to the next caps block record (or the end
     80  *    of caps block records which will be a zero word) and the record type
     81  *    as defined above.
     82  */
     83 
     84 typedef
     85 #include "vmware_pack_begin.h"
     86 struct SVGA3dCapsRecordHeader {
     87    uint32 length;
     88    SVGA3dCapsRecordType type;
     89 }
     90 #include "vmware_pack_end.h"
     91 SVGA3dCapsRecordHeader;
     92 
     93 
     94 /*
     95  * SVGA3dCapsRecord
     96  *
     97  *    Caps block record; "data" is a placeholder for the actual data structure
     98  *    contained within the record;
     99  */
    100 
    101 typedef
    102 #include "vmware_pack_begin.h"
    103 struct SVGA3dCapsRecord {
    104    SVGA3dCapsRecordHeader header;
    105    uint32 data[1];
    106 }
    107 #include "vmware_pack_end.h"
    108 SVGA3dCapsRecord;
    109 
    110 
    111 typedef uint32 SVGA3dCapPair[2];
    112 
    113 #endif
    114