drivers/staging/imgtec/rogue/rgx_compat_bvnc.h

   1 /*************************************************************************/ /*!
   2 @File
   3 @Title          Functions for BVNC manipulating
   4
   5 @Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
   6 @Description    Utility functions used internally by device memory management
   7                 code.
   8 @License        Dual MIT/GPLv2
   9
  10 The contents of this file are subject to the MIT license as set out below.
  11
  12 Permission is hereby granted, free of charge, to any person obtaining a copy
  13 of this software and associated documentation files (the "Software"), to deal
  14 in the Software without restriction, including without limitation the rights
  15 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  16 copies of the Software, and to permit persons to whom the Software is
  17 furnished to do so, subject to the following conditions:
  18
  19 The above copyright notice and this permission notice shall be included in
  20 all copies or substantial portions of the Software.
  21
  22 Alternatively, the contents of this file may be used under the terms of
  23 the GNU General Public License Version 2 ("GPL") in which case the provisions
  24 of GPL are applicable instead of those above.
  25
  26 If you wish to allow use of your version of this file only under the terms of
  27 GPL, and not to allow others to use your version of this file under the terms
  28 of the MIT license, indicate your decision by deleting the provisions above
  29 and replace them with the notice and other provisions required by GPL as set
  30 out in the file called "GPL-COPYING" included in this distribution. If you do
  31 not delete the provisions above, a recipient may use your version of this file
  32 under the terms of either the MIT license or GPL.
  33
  34 This License is also included in this distribution in the file called
  35 "MIT-COPYING".
  36
  37 EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
  38 PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
  39 BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  40 PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
  41 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  42 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  43 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  44 */ /**************************************************************************/
  45
  46 #if !defined (__RGX_COMPAT_BVNC_H__)
  47 #define __RGX_COMPAT_BVNC_H__
  48
  49 #include "img_types.h"
  50
  51 /* 64bit endian converting macros */
  52 #if defined(__BIG_ENDIAN__)
  53 #define RGX_INT64_TO_BE(N) (N)
  54 #define RGX_INT64_FROM_BE(N) (N)
  55 #define RGX_INT32_TO_BE(N) (N)
  56 #define RGX_INT32_FROM_BE(N) (N)
  57 #else
  58 #define RGX_INT64_TO_BE(N)        \
  59         ((((N) >> 56)   & 0xff)       \
  60          | (((N) >> 40) & 0xff00)     \
  61          | (((N) >> 24) & 0xff0000)   \
  62          | (((N) >> 8)  & 0xff000000) \
  63          | ((N)                << 56) \
  64          | (((N) & 0xff00)     << 40) \
  65          | (((N) & 0xff0000)   << 24) \
  66          | (((N) & 0xff000000) << 8))
  67 #define RGX_INT64_FROM_BE(N) RGX_INT64_TO_BE(N)
  68
  69 #define RGX_INT32_TO_BE(N)   \
  70         ((((N) >> 24)  & 0xff)   \
  71          | (((N) >> 8) & 0xff00) \
  72          | ((N)           << 24) \
  73          | (((N & 0xff00) << 8)))
  74 #define RGX_INT32_FROM_BE(N) RGX_INT32_TO_BE(N)
  75 #endif
  76
  77 /******************************************************************************
  78  * RGX Version packed into 24-bit (BNC) and string (V) to be used by Compatibility Check
  79  *****************************************************************************/
  80
  81 #define RGX_BVNC_PACK_SHIFT_B 32
  82 #define RGX_BVNC_PACK_SHIFT_N 16
  83 #define RGX_BVNC_PACK_SHIFT_C 0
  84
  85 #define RGX_BVNC_PACK_MASK_B (IMG_UINT64_C(0x0000FFFF00000000))
  86 #define RGX_BVNC_PACK_MASK_N (IMG_UINT64_C(0x00000000FFFF0000))
  87 #define RGX_BVNC_PACK_MASK_C (IMG_UINT64_C(0x000000000000FFFF))
  88
  89 #define RGX_BVNC_PACKED_EXTR_B(BVNC) ((IMG_UINT32)(((BVNC).ui64BNC & RGX_BVNC_PACK_MASK_B) >> RGX_BVNC_PACK_SHIFT_B))
  90 #define RGX_BVNC_PACKED_EXTR_V(BVNC) ((BVNC).aszV)
  91 #define RGX_BVNC_PACKED_EXTR_N(BVNC) ((IMG_UINT32)(((BVNC).ui64BNC & RGX_BVNC_PACK_MASK_N) >> RGX_BVNC_PACK_SHIFT_N))
  92 #define RGX_BVNC_PACKED_EXTR_C(BVNC) ((IMG_UINT32)(((BVNC).ui64BNC & RGX_BVNC_PACK_MASK_C) >> RGX_BVNC_PACK_SHIFT_C))
  93
  94 #if !defined(RGX_SKIP_BVNC_CHECK)
  95 #define RGX_BVNC_EQUAL(L,R,all,version,lenmax,bnc,v) do {                                                                                                       \
  96                                                                                 (lenmax) = IMG_FALSE;                                                                                           \
  97                                                                                 (bnc) = IMG_FALSE;                                                                                                      \
  98                                                                                 (v) = IMG_FALSE;                                                                                                        \
  99                                                                                 (version) = ((L).ui32LayoutVersion == (R).ui32LayoutVersion);           \
 100                                                                                 if (version)                                                                                                            \
 101                                                                                 {                                                                                                                                       \
 102                                                                                         (lenmax) = ((L).ui32VLenMax == (R).ui32VLenMax);                                \
 103                                                                                 }                                                                                                                                       \
 104                                                                                 if (lenmax)                                                                                                                     \
 105                                                                                 {                                                                                                                                       \
 106                                                                                         (bnc) = ((L).ui64BNC == (R).ui64BNC);                                                   \
 107                                                                                 }                                                                                                                                       \
 108                                                                                 if (bnc)                                                                                                                        \
 109                                                                                 {                                                                                                                                       \
 110                                                                                         (L).aszV[(L).ui32VLenMax] = '\0';                                                               \
 111                                                                                         (R).aszV[(R).ui32VLenMax] = '\0';                                                               \
 112                                                                                         (v) = (OSStringCompare((L).aszV, (R).aszV)==0);                                 \
 113                                                                                 }                                                                                                                                       \
 114                                                                                 (all) = (version) && (lenmax) && (bnc) && (v);                                          \
 115                                                                         } while (0)
 116 #else
 117 #define RGX_BVNC_EQUAL(L,R,all,version,lenmax,bnc,v)                                                                                                            \
 118                                                 (all)           = IMG_TRUE;                                                                                                                             \
 119                                                 (version)       = IMG_TRUE;                                                                                                                             \
 120                                                 (lenmax)        = IMG_TRUE;                                                                                                                             \
 121                                                 (bnc)           = IMG_TRUE;                                                                                                                             \
 122                                                 (v)             = IMG_TRUE;                                                                                                                             \
 123
 124 #endif
 125
 126 void rgx_bvnc_packed(IMG_UINT64 *pui64OutBNC, IMG_CHAR *pszOutV, IMG_UINT32 ui32OutVMaxLen,
 127                                          IMG_UINT32 ui32B, IMG_CHAR *pszV, IMG_UINT32 ui32N, IMG_UINT32 ui32C);
 128 void rgx_bvnc_pack_hw(IMG_UINT64 *pui64OutBNC, IMG_CHAR *pszOutV, IMG_UINT32 ui32OutVMaxLen,
 129                                           IMG_UINT32 ui32B, IMG_UINT32 ui32V, IMG_UINT32 ui32N, IMG_UINT32 ui32C);
 130
 131 #endif /*  __RGX_COMPAT_BVNC_H__ */
 132
 133 /******************************************************************************
 134  End of file (rgx_compat_bvnc.h)
 135 ******************************************************************************/
 136