release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mips/include/asm/octeon/octeon-model.h

   1 /***********************license start***************
   2  * Author: Cavium Networks
   3  *
   4  * Contact: support@caviumnetworks.com
   5  * This file is part of the OCTEON SDK
   6  *
   7  * Copyright (c) 2003-2008 Cavium Networks
   8  *
   9  * This file is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License, Version 2, as
  11  * published by the Free Software Foundation.
  12  *
  13  * This file is distributed in the hope that it will be useful, but
  14  * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
  15  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
  16  * NONINFRINGEMENT.  See the GNU General Public License for more
  17  * details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this file; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  22  * or visit http://www.gnu.org/licenses/.
  23  *
  24  * This file may also be available under a different license from Cavium.
  25  * Contact Cavium Networks for more information
  26  ***********************license end**************************************/
  27
  28 /*
  29  *
  30  * File defining different Octeon model IDs and macros to
  31  * compare them.
  32  *
  33  */
  34
  35 #ifndef __OCTEON_MODEL_H__
  36 #define __OCTEON_MODEL_H__
  37
  38 /* NOTE: These must match what is checked in common-config.mk */
  39 /* Defines to represent the different versions of Octeon.  */
  40
  41 /*
  42  * IMPORTANT: When the default pass is updated for an Octeon Model,
  43  * the corresponding change must also be made in the oct-sim script.
  44  */
  45
  46 /*
  47  * The defines below should be used with the OCTEON_IS_MODEL() macro
  48  * to determine what model of chip the software is running on.  Models
  49  * ending in 'XX' match multiple models (families), while specific
  50  * models match only that model.  If a pass (revision) is specified,
  51  * then only that revision will be matched.  Care should be taken when
  52  * checking for both specific models and families that the specific
  53  * models are checked for first.  While these defines are similar to
  54  * the processor ID, they are not intended to be used by anything
  55  * other that the OCTEON_IS_MODEL framework, and the values are
  56  * subject to change at anytime without notice.
  57  *
  58  * NOTE: only the OCTEON_IS_MODEL() macro/function and the OCTEON_CN*
  59  * macros should be used outside of this file.  All other macros are
  60  * for internal use only, and may change without notice.
  61  */
  62
  63 /* Flag bits in top byte */
  64 /* Ignores revision in model checks */
  65 #define OM_IGNORE_REVISION        0x01000000
  66 /* Check submodels */
  67 #define OM_CHECK_SUBMODEL         0x02000000
  68 /* Match all models previous than the one specified */
  69 #define OM_MATCH_PREVIOUS_MODELS  0x04000000
  70 /* Ignores the minor revison on newer parts */
  71 #define OM_IGNORE_MINOR_REVISION  0x08000000
  72 #define OM_FLAG_MASK              0xff000000
  73
  74 /*
  75  * CN5XXX models with new revision encoding
  76  */
  77 #define OCTEON_CN58XX_PASS1_0   0x000d0300
  78 #define OCTEON_CN58XX_PASS1_1   0x000d0301
  79 #define OCTEON_CN58XX_PASS1_2   0x000d0303
  80 #define OCTEON_CN58XX_PASS2_0   0x000d0308
  81 #define OCTEON_CN58XX_PASS2_1   0x000d0309
  82 #define OCTEON_CN58XX_PASS2_2   0x000d030a
  83 #define OCTEON_CN58XX_PASS2_3   0x000d030b
  84
  85 #define OCTEON_CN58XX           (OCTEON_CN58XX_PASS1_0 | OM_IGNORE_REVISION)
  86 #define OCTEON_CN58XX_PASS1_X   (OCTEON_CN58XX_PASS1_0 \
  87                                  | OM_IGNORE_MINOR_REVISION)
  88 #define OCTEON_CN58XX_PASS2_X   (OCTEON_CN58XX_PASS2_0 \
  89                                  | OM_IGNORE_MINOR_REVISION)
  90 #define OCTEON_CN58XX_PASS1     OCTEON_CN58XX_PASS1_X
  91 #define OCTEON_CN58XX_PASS2     OCTEON_CN58XX_PASS2_X
  92
  93 #define OCTEON_CN56XX_PASS1_0   0x000d0400
  94 #define OCTEON_CN56XX_PASS1_1   0x000d0401
  95 #define OCTEON_CN56XX_PASS2_0   0x000d0408
  96 #define OCTEON_CN56XX_PASS2_1   0x000d0409
  97
  98 #define OCTEON_CN56XX           (OCTEON_CN56XX_PASS2_0 | OM_IGNORE_REVISION)
  99 #define OCTEON_CN56XX_PASS1_X   (OCTEON_CN56XX_PASS1_0 \
 100                                  | OM_IGNORE_MINOR_REVISION)
 101 #define OCTEON_CN56XX_PASS2_X   (OCTEON_CN56XX_PASS2_0 \
 102                                  | OM_IGNORE_MINOR_REVISION)
 103 #define OCTEON_CN56XX_PASS1     OCTEON_CN56XX_PASS1_X
 104 #define OCTEON_CN56XX_PASS2     OCTEON_CN56XX_PASS2_X
 105
 106 #define OCTEON_CN57XX           OCTEON_CN56XX
 107 #define OCTEON_CN57XX_PASS1     OCTEON_CN56XX_PASS1
 108 #define OCTEON_CN57XX_PASS2     OCTEON_CN56XX_PASS2
 109
 110 #define OCTEON_CN55XX           OCTEON_CN56XX
 111 #define OCTEON_CN55XX_PASS1     OCTEON_CN56XX_PASS1
 112 #define OCTEON_CN55XX_PASS2     OCTEON_CN56XX_PASS2
 113
 114 #define OCTEON_CN54XX           OCTEON_CN56XX
 115 #define OCTEON_CN54XX_PASS1     OCTEON_CN56XX_PASS1
 116 #define OCTEON_CN54XX_PASS2     OCTEON_CN56XX_PASS2
 117
 118 #define OCTEON_CN50XX_PASS1_0   0x000d0600
 119
 120 #define OCTEON_CN50XX           (OCTEON_CN50XX_PASS1_0 | OM_IGNORE_REVISION)
 121 #define OCTEON_CN50XX_PASS1_X   (OCTEON_CN50XX_PASS1_0 \
 122                                  | OM_IGNORE_MINOR_REVISION)
 123 #define OCTEON_CN50XX_PASS1     OCTEON_CN50XX_PASS1_X
 124
 125 /*
 126  * NOTE: Octeon CN5000F model is not identifiable using the
 127  * OCTEON_IS_MODEL() functions, but are treated as CN50XX.
 128  */
 129
 130 #define OCTEON_CN52XX_PASS1_0   0x000d0700
 131 #define OCTEON_CN52XX_PASS2_0   0x000d0708
 132
 133 #define OCTEON_CN52XX           (OCTEON_CN52XX_PASS2_0 | OM_IGNORE_REVISION)
 134 #define OCTEON_CN52XX_PASS1_X   (OCTEON_CN52XX_PASS1_0 \
 135                                  | OM_IGNORE_MINOR_REVISION)
 136 #define OCTEON_CN52XX_PASS2_X   (OCTEON_CN52XX_PASS2_0 \
 137                                  | OM_IGNORE_MINOR_REVISION)
 138 #define OCTEON_CN52XX_PASS1     OCTEON_CN52XX_PASS1_X
 139 #define OCTEON_CN52XX_PASS2     OCTEON_CN52XX_PASS2_X
 140
 141 /*
 142  * CN3XXX models with old revision enconding
 143  */
 144 #define OCTEON_CN38XX_PASS1     0x000d0000
 145 #define OCTEON_CN38XX_PASS2     0x000d0001
 146 #define OCTEON_CN38XX_PASS3     0x000d0003
 147 #define OCTEON_CN38XX           (OCTEON_CN38XX_PASS3 | OM_IGNORE_REVISION)
 148
 149 #define OCTEON_CN36XX           OCTEON_CN38XX
 150 #define OCTEON_CN36XX_PASS2     OCTEON_CN38XX_PASS2
 151 #define OCTEON_CN36XX_PASS3     OCTEON_CN38XX_PASS3
 152
 153 /* The OCTEON_CN31XX matches CN31XX models and the CN3020 */
 154 #define OCTEON_CN31XX_PASS1     0x000d0100
 155 #define OCTEON_CN31XX_PASS1_1   0x000d0102
 156 #define OCTEON_CN31XX           (OCTEON_CN31XX_PASS1 | OM_IGNORE_REVISION)
 157
 158 /*
 159  * This model is only used for internal checks, it is not a valid
 160  * model for the OCTEON_MODEL environment variable.  This matches the
 161  * CN3010 and CN3005 but NOT the CN3020.
 162  */
 163 #define OCTEON_CN30XX_PASS1     0x000d0200
 164 #define OCTEON_CN30XX_PASS1_1   0x000d0202
 165 #define OCTEON_CN30XX           (OCTEON_CN30XX_PASS1 | OM_IGNORE_REVISION)
 166
 167 #define OCTEON_CN3005_PASS1     (0x000d0210 | OM_CHECK_SUBMODEL)
 168 #define OCTEON_CN3005_PASS1_0   (0x000d0210 | OM_CHECK_SUBMODEL)
 169 #define OCTEON_CN3005_PASS1_1   (0x000d0212 | OM_CHECK_SUBMODEL)
 170 #define OCTEON_CN3005           (OCTEON_CN3005_PASS1 | OM_IGNORE_REVISION \
 171                                  | OM_CHECK_SUBMODEL)
 172
 173 #define OCTEON_CN3010_PASS1     (0x000d0200 | OM_CHECK_SUBMODEL)
 174 #define OCTEON_CN3010_PASS1_0   (0x000d0200 | OM_CHECK_SUBMODEL)
 175 #define OCTEON_CN3010_PASS1_1   (0x000d0202 | OM_CHECK_SUBMODEL)
 176 #define OCTEON_CN3010           (OCTEON_CN3010_PASS1 | OM_IGNORE_REVISION \
 177                                  | OM_CHECK_SUBMODEL)
 178
 179 #define OCTEON_CN3020_PASS1     (0x000d0110 | OM_CHECK_SUBMODEL)
 180 #define OCTEON_CN3020_PASS1_0   (0x000d0110 | OM_CHECK_SUBMODEL)
 181 #define OCTEON_CN3020_PASS1_1   (0x000d0112 | OM_CHECK_SUBMODEL)
 182 #define OCTEON_CN3020           (OCTEON_CN3020_PASS1 | OM_IGNORE_REVISION \
 183                                  | OM_CHECK_SUBMODEL)
 184
 185
 186
 187 /* This matches the complete family of CN3xxx CPUs, and not subsequent models */
 188 #define OCTEON_CN3XXX           (OCTEON_CN58XX_PASS1_0 \
 189                                  | OM_MATCH_PREVIOUS_MODELS \
 190                                  | OM_IGNORE_REVISION)
 191
 192 /* The revision byte (low byte) has two different encodings.
 193  * CN3XXX:
 194  *
 195  *     bits
 196  *     <7:5>: reserved (0)
 197  *     <4>:   alternate package
 198  *     <3:0>: revision
 199  *
 200  * CN5XXX:
 201  *
 202  *     bits
 203  *     <7>:   reserved (0)
 204  *     <6>:   alternate package
 205  *     <5:3>: major revision
 206  *     <2:0>: minor revision
 207  *
 208  */
 209
 210 /* Masks used for the various types of model/family/revision matching */
 211 #define OCTEON_38XX_FAMILY_MASK      0x00ffff00
 212 #define OCTEON_38XX_FAMILY_REV_MASK  0x00ffff0f
 213 #define OCTEON_38XX_MODEL_MASK       0x00ffff10
 214 #define OCTEON_38XX_MODEL_REV_MASK   (OCTEON_38XX_FAMILY_REV_MASK \
 215                                       | OCTEON_38XX_MODEL_MASK)
 216
 217 /* CN5XXX and later use different layout of bits in the revision ID field */
 218 #define OCTEON_58XX_FAMILY_MASK      OCTEON_38XX_FAMILY_MASK
 219 #define OCTEON_58XX_FAMILY_REV_MASK  0x00ffff3f
 220 #define OCTEON_58XX_MODEL_MASK       0x00ffffc0
 221 #define OCTEON_58XX_MODEL_REV_MASK   (OCTEON_58XX_FAMILY_REV_MASK \
 222                                       | OCTEON_58XX_MODEL_MASK)
 223 #define OCTEON_58XX_MODEL_MINOR_REV_MASK (OCTEON_58XX_MODEL_REV_MASK \
 224                                           & 0x00fffff8)
 225
 226 #define __OCTEON_MATCH_MASK__(x, y, z) (((x) & (z)) == ((y) & (z)))
 227
 228 /* NOTE: This is for internal (to this file) use only. */
 229 static inline int __OCTEON_IS_MODEL_COMPILE__(uint32_t arg_model,
 230                                               uint32_t chip_model)
 231 {
 232         uint32_t rev_and_sub = OM_IGNORE_REVISION | OM_CHECK_SUBMODEL;
 233
 234         if ((arg_model & OCTEON_38XX_FAMILY_MASK) < OCTEON_CN58XX_PASS1_0) {
 235                 if (((arg_model & OM_FLAG_MASK) == rev_and_sub) &&
 236                     __OCTEON_MATCH_MASK__(chip_model, arg_model,
 237                                           OCTEON_38XX_MODEL_MASK))
 238                         return 1;
 239                 if (((arg_model & OM_FLAG_MASK) == 0) &&
 240                     __OCTEON_MATCH_MASK__(chip_model, arg_model,
 241                                           OCTEON_38XX_FAMILY_REV_MASK))
 242                         return 1;
 243                 if (((arg_model & OM_FLAG_MASK) == OM_IGNORE_REVISION) &&
 244                     __OCTEON_MATCH_MASK__(chip_model, arg_model,
 245                                           OCTEON_38XX_FAMILY_MASK))
 246                         return 1;
 247                 if (((arg_model & OM_FLAG_MASK) == OM_CHECK_SUBMODEL) &&
 248                     __OCTEON_MATCH_MASK__((chip_model), (arg_model),
 249                                           OCTEON_38XX_MODEL_REV_MASK))
 250                         return 1;
 251                 if ((arg_model & OM_MATCH_PREVIOUS_MODELS) &&
 252                     ((chip_model & OCTEON_38XX_MODEL_MASK) <
 253                             (arg_model & OCTEON_38XX_MODEL_MASK)))
 254                         return 1;
 255         } else {
 256                 if (((arg_model & OM_FLAG_MASK) == rev_and_sub) &&
 257                     __OCTEON_MATCH_MASK__((chip_model), (arg_model),
 258                                           OCTEON_58XX_MODEL_MASK))
 259                         return 1;
 260                 if (((arg_model & OM_FLAG_MASK) == 0) &&
 261                     __OCTEON_MATCH_MASK__((chip_model), (arg_model),
 262                                           OCTEON_58XX_FAMILY_REV_MASK))
 263                         return 1;
 264                 if (((arg_model & OM_FLAG_MASK) == OM_IGNORE_MINOR_REVISION) &&
 265                     __OCTEON_MATCH_MASK__((chip_model), (arg_model),
 266                                           OCTEON_58XX_MODEL_MINOR_REV_MASK))
 267                         return 1;
 268                 if (((arg_model & OM_FLAG_MASK) == OM_IGNORE_REVISION) &&
 269                     __OCTEON_MATCH_MASK__((chip_model), (arg_model),
 270                                           OCTEON_58XX_FAMILY_MASK))
 271                         return 1;
 272                 if (((arg_model & OM_FLAG_MASK) == OM_CHECK_SUBMODEL) &&
 273                     __OCTEON_MATCH_MASK__((chip_model), (arg_model),
 274                                           OCTEON_58XX_MODEL_REV_MASK))
 275                         return 1;
 276                 if ((arg_model & OM_MATCH_PREVIOUS_MODELS) &&
 277                     ((chip_model & OCTEON_58XX_MODEL_MASK) <
 278                             (arg_model & OCTEON_58XX_MODEL_MASK)))
 279                         return 1;
 280         }
 281         return 0;
 282 }
 283
 284 /* forward declarations */
 285 static inline uint32_t cvmx_get_proc_id(void) __attribute__ ((pure));
 286 static inline uint64_t cvmx_read_csr(uint64_t csr_addr);
 287
 288 /* NOTE: This for internal use only!!!!! */
 289 static inline int __octeon_is_model_runtime__(uint32_t model)
 290 {
 291         uint32_t cpuid = cvmx_get_proc_id();
 292
 293         /*
 294          * Check for special case of mismarked 3005 samples. We only
 295          * need to check if the sub model isn't being ignored.
 296          */
 297         if ((model & OM_CHECK_SUBMODEL) == OM_CHECK_SUBMODEL) {
 298                 if (cpuid == OCTEON_CN3010_PASS1 \
 299                     && (cvmx_read_csr(0x80011800800007B8ull) & (1ull << 34)))
 300                         cpuid |= 0x10;
 301         }
 302         return __OCTEON_IS_MODEL_COMPILE__(model, cpuid);
 303 }
 304
 305 /*
 306  * The OCTEON_IS_MODEL macro should be used for all Octeon model
 307  * checking done in a program.  This should be kept runtime if at all
 308  * possible.  Any compile time (#if OCTEON_IS_MODEL) usage must be
 309  * condtionalized with OCTEON_IS_COMMON_BINARY() if runtime checking
 310  * support is required.
 311  */
 312 #define OCTEON_IS_MODEL(x) __octeon_is_model_runtime__(x)
 313 #define OCTEON_IS_COMMON_BINARY() 1
 314 #undef OCTEON_MODEL
 315
 316 const char *octeon_model_get_string(uint32_t chip_id);
 317 const char *octeon_model_get_string_buffer(uint32_t chip_id, char *buffer);
 318
 319 #include "octeon-feature.h"
 320
 321 #endif /* __OCTEON_MODEL_H__ */