include/asm-ia64/sn/kldir.h

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Derived from IRIX <sys/SN/kldir.h>, revision 1.21.
   7  *
   8  * Copyright (C) 1992-1997,1999,2001-2003 Silicon Graphics, Inc.  All Rights Reserved.
   9  * Copyright (C) 1999 by Ralf Baechle
  10  */
  11 #ifndef _ASM_IA64_SN_KLDIR_H
  12 #define _ASM_IA64_SN_KLDIR_H
  13
  14 #include <linux/types.h>
  15
  16 /*
  17  * The kldir memory area resides at a fixed place in each node's memory and
  18  * provides pointers to most other IP27 memory areas.  This allows us to
  19  * resize and/or relocate memory areas at a later time without breaking all
  20  * firmware and kernels that use them.  Indices in the array are
  21  * permanently dedicated to areas listed below.  Some memory areas (marked
  22  * below) reside at a permanently fixed location, but are included in the
  23  * directory for completeness.
  24  */
  25
  26 #define KLDIR_MAGIC             0x434d5f53505f5357
  27
  28 /*
  29  * The upper portion of the memory map applies during boot
  30  * only and is overwritten by IRIX/SYMMON.
  31  *
  32  *                                    MEMORY MAP PER NODE
  33  *
  34  * 0x2000000 (32M)         +-----------------------------------------+
  35  *                         |      IO6 BUFFERS FOR FLASH ENET IOC3    |
  36  * 0x1F80000 (31.5M)       +-----------------------------------------+
  37  *                         |      IO6 TEXT/DATA/BSS/stack            |
  38  * 0x1C00000 (30M)         +-----------------------------------------+
  39  *                         |      IO6 PROM DEBUG TEXT/DATA/BSS/stack |
  40  * 0x0800000 (28M)         +-----------------------------------------+
  41  *                         |      IP27 PROM TEXT/DATA/BSS/stack      |
  42  * 0x1B00000 (27M)         +-----------------------------------------+
  43  *                         |      IP27 CFG                           |
  44  * 0x1A00000 (26M)         +-----------------------------------------+
  45  *                         |      Graphics PROM                      |
  46  * 0x1800000 (24M)         +-----------------------------------------+
  47  *                         |      3rd Party PROM drivers             |
  48  * 0x1600000 (22M)         +-----------------------------------------+
  49  *                         |                                         |
  50  *                         |      Free                               |
  51  *                         |                                         |
  52  *                         +-----------------------------------------+
  53  *                         |      UNIX DEBUG Version                 |
  54  * 0x190000 (2M--)         +-----------------------------------------+
  55  *                         |      SYMMON                             |
  56  *                         |      (For UNIX Debug only)              |
  57  * 0x34000 (208K)          +-----------------------------------------+
  58  *                         |      SYMMON STACK [NUM_CPU_PER_NODE]    |
  59  *                         |      (For UNIX Debug only)              |
  60  * 0x25000 (148K)          +-----------------------------------------+
  61  *                         |      KLCONFIG - II (temp)               |
  62  *                         |                                         |
  63  *                         |    ----------------------------         |
  64  *                         |                                         |
  65  *                         |      UNIX NON-DEBUG Version             |
  66  * 0x19000 (100K)          +-----------------------------------------+
  67  *
  68  *
  69  * The lower portion of the memory map contains information that is
  70  * permanent and is used by the IP27PROM, IO6PROM and IRIX.
  71  *
  72  * 0x19000 (100K)          +-----------------------------------------+
  73  *                         |                                         |
  74  *                         |      PI Error Spools (32K)              |
  75  *                         |                                         |
  76  * 0x12000 (72K)           +-----------------------------------------+
  77  *                         |      Unused                             |
  78  * 0x11c00 (71K)           +-----------------------------------------+
  79  *                         |      CPU 1 NMI Eframe area              |
  80  * 0x11a00 (70.5K)         +-----------------------------------------+
  81  *                         |      CPU 0 NMI Eframe area              |
  82  * 0x11800 (70K)           +-----------------------------------------+
  83  *                         |      CPU 1 NMI Register save area       |
  84  * 0x11600 (69.5K)         +-----------------------------------------+
  85  *                         |      CPU 0 NMI Register save area       |
  86  * 0x11400 (69K)           +-----------------------------------------+
  87  *                         |      GDA (1k)                           |
  88  * 0x11000 (68K)           +-----------------------------------------+
  89  *                         |      Early cache Exception stack        |
  90  *                         |             and/or                      |
  91  *                         |      kernel/io6prom nmi registers       |
  92  * 0x10800  (66k)          +-----------------------------------------+
  93  *                         |      cache error eframe                 |
  94  * 0x10400 (65K)           +-----------------------------------------+
  95  *                         |      Exception Handlers (UALIAS copy)   |
  96  * 0x10000 (64K)           +-----------------------------------------+
  97  *                         |                                         |
  98  *                         |                                         |
  99  *                         |      KLCONFIG - I (permanent) (48K)     |
 100  *                         |                                         |
 101  *                         |                                         |
 102  *                         |                                         |
 103  * 0x4000 (16K)            +-----------------------------------------+
 104  *                         |      NMI Handler (Protected Page)       |
 105  * 0x3000 (12K)            +-----------------------------------------+
 106  *                         |      ARCS PVECTORS (master node only)   |
 107  * 0x2c00 (11K)            +-----------------------------------------+
 108  *                         |      ARCS TVECTORS (master node only)   |
 109  * 0x2800 (10K)            +-----------------------------------------+
 110  *                         |      LAUNCH [NUM_CPU]                   |
 111  * 0x2400 (9K)             +-----------------------------------------+
 112  *                         |      Low memory directory (KLDIR)       |
 113  * 0x2000 (8K)             +-----------------------------------------+
 114  *                         |      ARCS SPB (1K)                      |
 115  * 0x1000 (4K)             +-----------------------------------------+
 116  *                         |      Early cache Exception stack        |
 117  *                         |             and/or                      |
 118  *                         |      kernel/io6prom nmi registers       |
 119  * 0x800  (2k)             +-----------------------------------------+
 120  *                         |      cache error eframe                 |
 121  * 0x400 (1K)              +-----------------------------------------+
 122  *                         |      Exception Handlers                 |
 123  * 0x0   (0K)              +-----------------------------------------+
 124  */
 125
 126 #ifdef __ASSEMBLY__
 127 #define KLDIR_OFF_MAGIC                 0x00
 128 #define KLDIR_OFF_OFFSET                0x08
 129 #define KLDIR_OFF_POINTER               0x10
 130 #define KLDIR_OFF_SIZE                  0x18
 131 #define KLDIR_OFF_COUNT                 0x20
 132 #define KLDIR_OFF_STRIDE                0x28
 133 #endif /* __ASSEMBLY__ */
 134
 135 #ifndef __ASSEMBLY__
 136 typedef struct kldir_ent_s {
 137         u64             magic;          /* Indicates validity of entry      */
 138         off_t           offset;         /* Offset from start of node space  */
 139         unsigned long   pointer;        /* Pointer to area in some cases    */
 140         size_t          size;           /* Size in bytes                    */
 141         u64             count;          /* Repeat count if array, 1 if not  */
 142         size_t          stride;         /* Stride if array, 0 if not        */
 143         char            rsvd[16];       /* Pad entry to 0x40 bytes          */
 144         /* NOTE: These 16 bytes are used in the Partition KLDIR
 145            entry to store partition info. Refer to klpart.h for this. */
 146 } kldir_ent_t;
 147 #endif /* __ASSEMBLY__ */
 148
 149
 150 #define KLDIR_ENT_SIZE                  0x40
 151 #define KLDIR_MAX_ENTRIES               (0x400 / 0x40)
 152
 153
 154
 155 /*
 156  * The upper portion of the memory map applies during boot
 157  * only and is overwritten by IRIX/SYMMON.  The minimum memory bank
 158  * size on IP35 is 64M, which provides a limit on the amount of space
 159  * the PROM can assume it has available.
 160  *
 161  * Most of the addresses below are defined as macros in this file, or
 162  * in SN/addrs.h or SN/SN1/addrs.h.
 163  *
 164  *                                    MEMORY MAP PER NODE
 165  *
 166  * 0x4000000 (64M)         +-----------------------------------------+
 167  *                         |                                         |
 168  *                         |                                         |
 169  *                         |      IO7 TEXT/DATA/BSS/stack            |
 170  * 0x3000000 (48M)         +-----------------------------------------+
 171  *                         |      Free                               |
 172  * 0x2102000 (>33M)        +-----------------------------------------+
 173  *                         |      IP35 Topology (PCFG) + misc data   |
 174  * 0x2000000 (32M)         +-----------------------------------------+
 175  *                         |      IO7 BUFFERS FOR FLASH ENET IOC3    |
 176  * 0x1F80000 (31.5M)       +-----------------------------------------+
 177  *                         |      Free                               |
 178  * 0x1C00000 (28M)         +-----------------------------------------+
 179  *                         |      IP35 PROM TEXT/DATA/BSS/stack      |
 180  * 0x1A00000 (26M)         +-----------------------------------------+
 181  *                         |      Routing temp. space                |
 182  * 0x1800000 (24M)         +-----------------------------------------+
 183  *                         |      Diagnostics temp. space            |
 184  * 0x1500000 (21M)         +-----------------------------------------+
 185  *                         |      Free                               |
 186  * 0x1400000 (20M)         +-----------------------------------------+
 187  *                         |      IO7 PROM temporary copy            |
 188  * 0x1300000 (19M)         +-----------------------------------------+
 189  *                         |                                         |
 190  *                         |      Free                               |
 191  *                         |      (UNIX DATA starts above 0x1000000) |
 192  *                         |                                         |
 193  *                         +-----------------------------------------+
 194  *                         |      UNIX DEBUG Version                 |
 195  * 0x0310000 (3.1M)        +-----------------------------------------+
 196  *                         |      SYMMON, loaded just below UNIX     |
 197  *                         |      (For UNIX Debug only)              |
 198  *                         |                                         |
 199  *                         |                                         |
 200  * 0x006C000 (432K)        +-----------------------------------------+
 201  *                         |      SYMMON STACK [NUM_CPU_PER_NODE]    |
 202  *                         |      (For UNIX Debug only)              |
 203  * 0x004C000 (304K)        +-----------------------------------------+
 204  *                         |                                         |
 205  *                         |                                         |
 206  *                         |      UNIX NON-DEBUG Version             |
 207  * 0x0040000 (256K)        +-----------------------------------------+
 208  *
 209  *
 210  * The lower portion of the memory map contains information that is
 211  * permanent and is used by the IP35PROM, IO7PROM and IRIX.
 212  *
 213  * 0x40000 (256K)          +-----------------------------------------+
 214  *                         |                                         |
 215  *                         |      KLCONFIG (64K)                     |
 216  *                         |                                         |
 217  * 0x30000 (192K)          +-----------------------------------------+
 218  *                         |                                         |
 219  *                         |      PI Error Spools (64K)              |
 220  *                         |                                         |
 221  * 0x20000 (128K)          +-----------------------------------------+
 222  *                         |                                         |
 223  *                         |      Unused                             |
 224  *                         |                                         |
 225  * 0x19000 (100K)          +-----------------------------------------+
 226  *                         |      Early cache Exception stack (CPU 3)|
 227  * 0x18800 (98K)           +-----------------------------------------+
 228  *                         |      cache error eframe (CPU 3)         |
 229  * 0x18400 (97K)           +-----------------------------------------+
 230  *                         |      Exception Handlers (CPU 3)         |
 231  * 0x18000 (96K)           +-----------------------------------------+
 232  *                         |                                         |
 233  *                         |      Unused                             |
 234  *                         |                                         |
 235  * 0x13c00 (79K)           +-----------------------------------------+
 236  *                         |      GPDA (8k)                          |
 237  * 0x11c00 (71K)           +-----------------------------------------+
 238  *                         |      Early cache Exception stack (CPU 2)|
 239  * 0x10800 (66k)           +-----------------------------------------+
 240  *                         |      cache error eframe (CPU 2)         |
 241  * 0x10400 (65K)           +-----------------------------------------+
 242  *                         |      Exception Handlers (CPU 2)         |
 243  * 0x10000 (64K)           +-----------------------------------------+
 244  *                         |                                         |
 245  *                         |      Unused                             |
 246  *                         |                                         |
 247  * 0x0b400 (45K)           +-----------------------------------------+
 248  *                         |      GDA (1k)                           |
 249  * 0x0b000 (44K)           +-----------------------------------------+
 250  *                         |      NMI Eframe areas (4)               |
 251  * 0x0a000 (40K)           +-----------------------------------------+
 252  *                         |      NMI Register save areas (4)        |
 253  * 0x09000 (36K)           +-----------------------------------------+
 254  *                         |      Early cache Exception stack (CPU 1)|
 255  * 0x08800 (34K)           +-----------------------------------------+
 256  *                         |      cache error eframe (CPU 1)         |
 257  * 0x08400 (33K)           +-----------------------------------------+
 258  *                         |      Exception Handlers (CPU 1)         |
 259  * 0x08000 (32K)           +-----------------------------------------+
 260  *                         |                                         |
 261  *                         |                                         |
 262  *                         |      Unused                             |
 263  *                         |                                         |
 264  *                         |                                         |
 265  * 0x04000 (16K)           +-----------------------------------------+
 266  *                         |      NMI Handler (Protected Page)       |
 267  * 0x03000 (12K)           +-----------------------------------------+
 268  *                         |      ARCS PVECTORS (master node only)   |
 269  * 0x02c00 (11K)           +-----------------------------------------+
 270  *                         |      ARCS TVECTORS (master node only)   |
 271  * 0x02800 (10K)           +-----------------------------------------+
 272  *                         |      LAUNCH [NUM_CPU]                   |
 273  * 0x02400 (9K)            +-----------------------------------------+
 274  *                         |      Low memory directory (KLDIR)       |
 275  * 0x02000 (8K)            +-----------------------------------------+
 276  *                         |      ARCS SPB (1K)                      |
 277  * 0x01000 (4K)            +-----------------------------------------+
 278  *                         |      Early cache Exception stack (CPU 0)|
 279  * 0x00800 (2k)            +-----------------------------------------+
 280  *                         |      cache error eframe (CPU 0)         |
 281  * 0x00400 (1K)            +-----------------------------------------+
 282  *                         |      Exception Handlers (CPU 0)         |
 283  * 0x00000 (0K)            +-----------------------------------------+
 284  */
 285
 286 /*
 287  * NOTE:  To change the kernel load address, you must update:
 288  *  - the appropriate elspec files in irix/kern/master.d
 289  *  - NODEBUGUNIX_ADDR in SN/SN1/addrs.h
 290  *  - IP27_FREEMEM_OFFSET below
 291  *  - KERNEL_START_OFFSET below (if supporting cells)
 292  */
 293
 294
 295 /*
 296  * This is defined here because IP27_SYMMON_STK_SIZE must be at least what
 297  * we define here.  Since it's set up in the prom.  We can't redefine it later
 298  * and expect more space to be allocated.  The way to find out the true size
 299  * of the symmon stacks is to divide SYMMON_STK_SIZE by SYMMON_STK_STRIDE
 300  * for a particular node.
 301  */
 302 #define SYMMON_STACK_SIZE               0x8000
 303
 304 #if defined (PROM) || defined (SABLE)
 305
 306 /*
 307  * These defines are prom version dependent.  No code other than the IP35
 308  * prom should attempt to use these values.
 309  */
 310 #define IP27_LAUNCH_OFFSET              0x2400
 311 #define IP27_LAUNCH_SIZE                0x400
 312 #define IP27_LAUNCH_COUNT               4
 313 #define IP27_LAUNCH_STRIDE              0x100 /* could be as small as 0x80 */
 314
 315 #define IP27_KLCONFIG_OFFSET            0x30000
 316 #define IP27_KLCONFIG_SIZE              0x10000
 317 #define IP27_KLCONFIG_COUNT             1
 318 #define IP27_KLCONFIG_STRIDE            0
 319
 320 #define IP27_NMI_OFFSET                 0x3000
 321 #define IP27_NMI_SIZE                   0x100
 322 #define IP27_NMI_COUNT                  4
 323 #define IP27_NMI_STRIDE                 0x40
 324
 325 #define IP27_PI_ERROR_OFFSET            0x20000
 326 #define IP27_PI_ERROR_SIZE              0x10000
 327 #define IP27_PI_ERROR_COUNT             1
 328 #define IP27_PI_ERROR_STRIDE            0
 329
 330 #define IP27_SYMMON_STK_OFFSET          0x4c000
 331 #define IP27_SYMMON_STK_SIZE            0x20000
 332 #define IP27_SYMMON_STK_COUNT           4
 333 /* IP27_SYMMON_STK_STRIDE must be >= SYMMON_STACK_SIZE */
 334 #define IP27_SYMMON_STK_STRIDE          0x8000
 335
 336 #define IP27_FREEMEM_OFFSET             0x40000
 337 #define IP27_FREEMEM_SIZE               (-1)
 338 #define IP27_FREEMEM_COUNT              1
 339 #define IP27_FREEMEM_STRIDE             0
 340
 341 #endif /* PROM || SABLE*/
 342 /*
 343  * There will be only one of these in a partition so the IO7 must set it up.
 344  */
 345 #define IO6_GDA_OFFSET                  0xb000
 346 #define IO6_GDA_SIZE                    0x400
 347 #define IO6_GDA_COUNT                   1
 348 #define IO6_GDA_STRIDE                  0
 349
 350 /*
 351  * save area of kernel nmi regs in the prom format
 352  */
 353 #define IP27_NMI_KREGS_OFFSET           0x9000
 354 #define IP27_NMI_KREGS_CPU_SIZE         0x400
 355 /*
 356  * save area of kernel nmi regs in eframe format
 357  */
 358 #define IP27_NMI_EFRAME_OFFSET          0xa000
 359 #define IP27_NMI_EFRAME_SIZE            0x400
 360
 361 #define GPDA_OFFSET                     0x11c00
 362
 363 #endif /* _ASM_IA64_SN_KLDIR_H */