src/mesa/sparc/sparc.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  5.1
   4  *
   5  * Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 /*
  26  * Sparc assembly code by David S. Miller
  27  */
  28
  29
  30 #ifdef USE_SPARC_ASM
  31
  32 #include "context.h"
  33 #include "math/m_xform.h"
  34 #include "tnl/t_context.h"
  35 #include "sparc.h"
  36
  37 #ifdef DEBUG
  38 #include "math/m_debug.h"
  39 #endif
  40
  41 #define XFORM_ARGS      GLvector4f *to_vec,             \
  42                         const GLfloat m[16],            \
  43                         const GLvector4f *from_vec
  44
  45 #define DECLARE_XFORM_GROUP(pfx, sz)                                       \
  46  extern void _mesa_##pfx##_transform_points##sz##_general(XFORM_ARGS);     \
  47  extern void _mesa_##pfx##_transform_points##sz##_identity(XFORM_ARGS);    \
  48  extern void _mesa_##pfx##_transform_points##sz##_3d_no_rot(XFORM_ARGS);   \
  49  extern void _mesa_##pfx##_transform_points##sz##_perspective(XFORM_ARGS); \
  50  extern void _mesa_##pfx##_transform_points##sz##_2d(XFORM_ARGS);          \
  51  extern void _mesa_##pfx##_transform_points##sz##_2d_no_rot(XFORM_ARGS);   \
  52  extern void _mesa_##pfx##_transform_points##sz##_3d(XFORM_ARGS);
  53
  54 #define ASSIGN_XFORM_GROUP(pfx, sz)                                     \
  55    _mesa_transform_tab[sz][MATRIX_GENERAL] =                            \
  56       _mesa_##pfx##_transform_points##sz##_general;                     \
  57    _mesa_transform_tab[sz][MATRIX_IDENTITY] =                           \
  58       _mesa_##pfx##_transform_points##sz##_identity;                    \
  59    _mesa_transform_tab[sz][MATRIX_3D_NO_ROT] =                          \
  60       _mesa_##pfx##_transform_points##sz##_3d_no_rot;                   \
  61    _mesa_transform_tab[sz][MATRIX_PERSPECTIVE] =                        \
  62       _mesa_##pfx##_transform_points##sz##_perspective;                 \
  63    _mesa_transform_tab[sz][MATRIX_2D] =                                 \
  64       _mesa_##pfx##_transform_points##sz##_2d;                          \
  65    _mesa_transform_tab[sz][MATRIX_2D_NO_ROT] =                          \
  66       _mesa_##pfx##_transform_points##sz##_2d_no_rot;                   \
  67    _mesa_transform_tab[sz][MATRIX_3D] =                                 \
  68       _mesa_##pfx##_transform_points##sz##_3d;
  69
  70
  71 #ifdef USE_SPARC_ASM
  72 DECLARE_XFORM_GROUP(sparc, 1)
  73 DECLARE_XFORM_GROUP(sparc, 2)
  74 DECLARE_XFORM_GROUP(sparc, 3)
  75 DECLARE_XFORM_GROUP(sparc, 4)
  76
  77 extern GLvector4f  *_mesa_sparc_cliptest_points4(GLvector4f *clip_vec,
  78                                                  GLvector4f *proj_vec,
  79                                                  GLubyte clipMask[],
  80                                                  GLubyte *orMask,
  81                                                  GLubyte *andMask);
  82
  83 extern GLvector4f  *_mesa_sparc_cliptest_points4_np(GLvector4f *clip_vec,
  84                                                     GLvector4f *proj_vec,
  85                                                     GLubyte clipMask[],
  86                                                     GLubyte *orMask,
  87                                                     GLubyte *andMask);
  88
  89 #define NORM_ARGS       const GLmatrix *mat,                            \
  90                         GLfloat scale,                                  \
  91                         const GLvector4f *in,                           \
  92                         const GLfloat *lengths,                         \
  93                         GLvector4f *dest
  94
  95 extern void _mesa_sparc_transform_normalize_normals(NORM_ARGS);
  96 extern void _mesa_sparc_transform_normalize_normals_no_rot(NORM_ARGS);
  97 extern void _mesa_sparc_transform_rescale_normals_no_rot(NORM_ARGS);
  98 extern void _mesa_sparc_transform_rescale_normals(NORM_ARGS);
  99 extern void _mesa_sparc_transform_normals_no_rot(NORM_ARGS);
 100 extern void _mesa_sparc_transform_normals(NORM_ARGS);
 101 extern void _mesa_sparc_normalize_normals(NORM_ARGS);
 102 extern void _mesa_sparc_rescale_normals(NORM_ARGS);
 103
 104 #endif
 105
 106 void _mesa_init_all_sparc_transform_asm(void)
 107 {
 108 #ifdef USE_SPARC_ASM
 109    ASSIGN_XFORM_GROUP(sparc, 1)
 110    ASSIGN_XFORM_GROUP(sparc, 2)
 111    ASSIGN_XFORM_GROUP(sparc, 3)
 112    ASSIGN_XFORM_GROUP(sparc, 4)
 113
 114 #if 0
 115    /* Disabled for now.  See Mesa bug report # 544665.  Evidently these
 116     * functions are using SPARC registers that shouldn't be touched.
 117     */
 118    _mesa_clip_tab[4] = _mesa_sparc_cliptest_points4;
 119    _mesa_clip_np_tab[4] = _mesa_sparc_cliptest_points4_np;
 120 #endif
 121 #if 0
 122    /* disable these too.  See bug 673938 */
 123    _mesa_normal_tab[NORM_TRANSFORM | NORM_NORMALIZE] =
 124            _mesa_sparc_transform_normalize_normals;
 125    _mesa_normal_tab[NORM_TRANSFORM_NO_ROT | NORM_NORMALIZE] =
 126            _mesa_sparc_transform_normalize_normals_no_rot;
 127    _mesa_normal_tab[NORM_TRANSFORM_NO_ROT | NORM_RESCALE] =
 128            _mesa_sparc_transform_rescale_normals_no_rot;
 129    _mesa_normal_tab[NORM_TRANSFORM | NORM_RESCALE] =
 130            _mesa_sparc_transform_rescale_normals;
 131    _mesa_normal_tab[NORM_TRANSFORM_NO_ROT] =
 132            _mesa_sparc_transform_normals_no_rot;
 133    _mesa_normal_tab[NORM_TRANSFORM] =
 134            _mesa_sparc_transform_normals;
 135    _mesa_normal_tab[NORM_NORMALIZE] =
 136            _mesa_sparc_normalize_normals;
 137    _mesa_normal_tab[NORM_RESCALE] =
 138            _mesa_sparc_rescale_normals;
 139 #endif
 140
 141 #ifdef DEBUG
 142    _math_test_all_transform_functions("sparc");
 143    _math_test_all_cliptest_functions("sparc");
 144    _math_test_all_normal_transform_functions("sparc");
 145 #endif
 146
 147 #endif
 148 }
 149
 150 extern unsigned int _mesa_sparc_glapi_begin;
 151 extern unsigned int _mesa_sparc_glapi_end;
 152 extern void __glapi_sparc_icache_flush(unsigned int *);
 153
 154 #endif /* USE_SPARC_ASM */
 155
 156
 157 void _mesa_init_sparc_glapi_relocs(void)
 158 {
 159 #ifdef USE_SPARC_ASM
 160         unsigned int *insn_ptr, *end_ptr;
 161         unsigned long disp_addr;
 162
 163         insn_ptr = &_mesa_sparc_glapi_begin;
 164         end_ptr = &_mesa_sparc_glapi_end;
 165         disp_addr = (unsigned long) &_glapi_Dispatch;
 166
 167         while (insn_ptr < end_ptr) {
 168 #if defined(__sparc_v9__) && !defined(__linux__)
 169                 insn_ptr[0] |= (disp_addr >> (32 + 10));
 170                 insn_ptr[1] |= ((disp_addr & 0xffffffff) >> 10);
 171                 __glapi_sparc_icache_flush(&insn_ptr[0]);
 172                 insn_ptr[2] |= ((disp_addr >> 32) & ((1 << 10) - 1));
 173                 insn_ptr[3] |= (disp_addr & ((1 << 10) - 1));
 174                 __glapi_sparc_icache_flush(&insn_ptr[2]);
 175                 insn_ptr += 11;
 176 #else
 177                 insn_ptr[0] |= (disp_addr >> 10);
 178                 insn_ptr[1] |= (disp_addr & ((1 << 10) - 1));
 179                 __glapi_sparc_icache_flush(&insn_ptr[0]);
 180                 insn_ptr += 5;
 181 #endif
 182         }
 183 #endif /* USE_SPARC_ASM */
 184 }