src/mesa/sparc/sparc.c

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.3
   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 #include "sparc.h"
  31
  32 #ifdef USE_SPARC_ASM
  33
  34 #include "context.h"
  35 #include "math/m_xform.h"
  36 #include "tnl/t_context.h"
  37
  38 #ifdef DEBUG
  39 #include "math/m_debug.h"
  40 #endif
  41
  42 #define XFORM_ARGS      GLvector4f *to_vec,             \
  43                         const GLfloat m[16],            \
  44                         const GLvector4f *from_vec
  45
  46 #define DECLARE_XFORM_GROUP(pfx, sz)                                       \
  47  extern void _mesa_##pfx##_transform_points##sz##_general(XFORM_ARGS);     \
  48  extern void _mesa_##pfx##_transform_points##sz##_identity(XFORM_ARGS);    \
  49  extern void _mesa_##pfx##_transform_points##sz##_3d_no_rot(XFORM_ARGS);   \
  50  extern void _mesa_##pfx##_transform_points##sz##_perspective(XFORM_ARGS); \
  51  extern void _mesa_##pfx##_transform_points##sz##_2d(XFORM_ARGS);          \
  52  extern void _mesa_##pfx##_transform_points##sz##_2d_no_rot(XFORM_ARGS);   \
  53  extern void _mesa_##pfx##_transform_points##sz##_3d(XFORM_ARGS);
  54
  55 #define ASSIGN_XFORM_GROUP(pfx, sz)                                     \
  56    _mesa_transform_tab[sz][MATRIX_GENERAL] =                            \
  57       _mesa_##pfx##_transform_points##sz##_general;                     \
  58    _mesa_transform_tab[sz][MATRIX_IDENTITY] =                           \
  59       _mesa_##pfx##_transform_points##sz##_identity;                    \
  60    _mesa_transform_tab[sz][MATRIX_3D_NO_ROT] =                          \
  61       _mesa_##pfx##_transform_points##sz##_3d_no_rot;                   \
  62    _mesa_transform_tab[sz][MATRIX_PERSPECTIVE] =                        \
  63       _mesa_##pfx##_transform_points##sz##_perspective;                 \
  64    _mesa_transform_tab[sz][MATRIX_2D] =                                 \
  65       _mesa_##pfx##_transform_points##sz##_2d;                          \
  66    _mesa_transform_tab[sz][MATRIX_2D_NO_ROT] =                          \
  67       _mesa_##pfx##_transform_points##sz##_2d_no_rot;                   \
  68    _mesa_transform_tab[sz][MATRIX_3D] =                                 \
  69       _mesa_##pfx##_transform_points##sz##_3d;
  70
  71
  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
 105
 106 void _mesa_init_all_sparc_transform_asm(void)
 107 {
 108    ASSIGN_XFORM_GROUP(sparc, 1)
 109    ASSIGN_XFORM_GROUP(sparc, 2)
 110    ASSIGN_XFORM_GROUP(sparc, 3)
 111    ASSIGN_XFORM_GROUP(sparc, 4)
 112
 113 #if 0
 114    /* Disabled for now.  See Mesa bug report # 544665.  Evidently these
 115     * functions are using SPARC registers that shouldn't be touched.
 116     */
 117    _mesa_clip_tab[4] = _mesa_sparc_cliptest_points4;
 118    _mesa_clip_np_tab[4] = _mesa_sparc_cliptest_points4_np;
 119 #endif
 120 #if 0
 121    /* disable these too.  See bug 673938 */
 122    _mesa_normal_tab[NORM_TRANSFORM | NORM_NORMALIZE] =
 123            _mesa_sparc_transform_normalize_normals;
 124    _mesa_normal_tab[NORM_TRANSFORM_NO_ROT | NORM_NORMALIZE] =
 125            _mesa_sparc_transform_normalize_normals_no_rot;
 126    _mesa_normal_tab[NORM_TRANSFORM_NO_ROT | NORM_RESCALE] =
 127            _mesa_sparc_transform_rescale_normals_no_rot;
 128    _mesa_normal_tab[NORM_TRANSFORM | NORM_RESCALE] =
 129            _mesa_sparc_transform_rescale_normals;
 130    _mesa_normal_tab[NORM_TRANSFORM_NO_ROT] =
 131            _mesa_sparc_transform_normals_no_rot;
 132    _mesa_normal_tab[NORM_TRANSFORM] =
 133            _mesa_sparc_transform_normals;
 134    _mesa_normal_tab[NORM_NORMALIZE] =
 135            _mesa_sparc_normalize_normals;
 136    _mesa_normal_tab[NORM_RESCALE] =
 137            _mesa_sparc_rescale_normals;
 138 #endif
 139
 140 #ifdef DEBUG
 141    _math_test_all_transform_functions("sparc");
 142    _math_test_all_cliptest_functions("sparc");
 143    _math_test_all_normal_transform_functions("sparc");
 144 #endif
 145 }
 146
 147 extern unsigned int _mesa_sparc_glapi_begin;
 148 extern unsigned int _mesa_sparc_glapi_end;
 149 extern void __glapi_sparc_icache_flush(unsigned int *);
 150
 151 #endif /* USE_SPARC_ASM */
 152
 153
 154 void _mesa_init_sparc_glapi_relocs(void)
 155 {
 156 #ifdef USE_SPARC_ASM
 157         unsigned int *insn_ptr, *end_ptr;
 158         unsigned long disp_addr;
 159
 160         insn_ptr = &_mesa_sparc_glapi_begin;
 161         end_ptr = &_mesa_sparc_glapi_end;
 162         disp_addr = (unsigned long) &_glapi_Dispatch;
 163
 164         while (insn_ptr < end_ptr) {
 165 #if (defined(__sparc_v9__) && (!defined(__linux__) || defined(__linux_sparc_64__)))
 166                 insn_ptr[0] |= (disp_addr >> (32 + 10));
 167                 insn_ptr[1] |= ((disp_addr & 0xffffffff) >> 10);
 168                 __glapi_sparc_icache_flush(&insn_ptr[0]);
 169                 insn_ptr[2] |= ((disp_addr >> 32) & ((1 << 10) - 1));
 170                 insn_ptr[3] |= (disp_addr & ((1 << 10) - 1));
 171                 __glapi_sparc_icache_flush(&insn_ptr[2]);
 172                 insn_ptr += 11;
 173 #else
 174                 insn_ptr[0] |= (disp_addr >> 10);
 175                 insn_ptr[1] |= (disp_addr & ((1 << 10) - 1));
 176                 __glapi_sparc_icache_flush(&insn_ptr[0]);
 177                 insn_ptr += 5;
 178 #endif
 179         }
 180 #endif /* USE_SPARC_ASM */
 181 }