git.oblomov.eu Git - linux-2.6/blob - arch/mips/cavium-octeon/executive/cvmx-bootmem.c

   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  * Simple allocate only memory allocator.  Used to allocate memory at
  30  * application start time.
  31  */
  32
  33 #include <linux/kernel.h>
  34 #include <linux/module.h>
  35
  36 #include <asm/octeon/cvmx.h>
  37 #include <asm/octeon/cvmx-spinlock.h>
  38 #include <asm/octeon/cvmx-bootmem.h>
  39
  40 /*#define DEBUG */
  41
  42
  43 static struct cvmx_bootmem_desc *cvmx_bootmem_desc;
  44
  45 /* See header file for descriptions of functions */
  46
  47 /*
  48  * Wrapper functions are provided for reading/writing the size and
  49  * next block values as these may not be directly addressible (in 32
  50  * bit applications, for instance.)  Offsets of data elements in
  51  * bootmem list, must match cvmx_bootmem_block_header_t.
  52  */
  53 #define NEXT_OFFSET 0
  54 #define SIZE_OFFSET 8
  55
  56 static void cvmx_bootmem_phy_set_size(uint64_t addr, uint64_t size)
  57 {
  58         cvmx_write64_uint64((addr + SIZE_OFFSET) | (1ull << 63), size);
  59 }
  60
  61 static void cvmx_bootmem_phy_set_next(uint64_t addr, uint64_t next)
  62 {
  63         cvmx_write64_uint64((addr + NEXT_OFFSET) | (1ull << 63), next);
  64 }
  65
  66 static uint64_t cvmx_bootmem_phy_get_size(uint64_t addr)
  67 {
  68         return cvmx_read64_uint64((addr + SIZE_OFFSET) | (1ull << 63));
  69 }
  70
  71 static uint64_t cvmx_bootmem_phy_get_next(uint64_t addr)
  72 {
  73         return cvmx_read64_uint64((addr + NEXT_OFFSET) | (1ull << 63));
  74 }
  75
  76 void *cvmx_bootmem_alloc_range(uint64_t size, uint64_t alignment,
  77                                uint64_t min_addr, uint64_t max_addr)
  78 {
  79         int64_t address;
  80         address =
  81             cvmx_bootmem_phy_alloc(size, min_addr, max_addr, alignment, 0);
  82
  83         if (address > 0)
  84                 return cvmx_phys_to_ptr(address);
  85         else
  86                 return NULL;
  87 }
  88
  89 void *cvmx_bootmem_alloc_address(uint64_t size, uint64_t address,
  90                                  uint64_t alignment)
  91 {
  92         return cvmx_bootmem_alloc_range(size, alignment, address,
  93                                         address + size);
  94 }
  95
  96 void *cvmx_bootmem_alloc(uint64_t size, uint64_t alignment)
  97 {
  98         return cvmx_bootmem_alloc_range(size, alignment, 0, 0);
  99 }
 100
 101 void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
 102                                      uint64_t max_addr, uint64_t align,
 103                                      char *name)
 104 {
 105         int64_t addr;
 106
 107         addr = cvmx_bootmem_phy_named_block_alloc(size, min_addr, max_addr,
 108                                                   align, name, 0);
 109         if (addr >= 0)
 110                 return cvmx_phys_to_ptr(addr);
 111         else
 112                 return NULL;
 113 }
 114
 115 void *cvmx_bootmem_alloc_named_address(uint64_t size, uint64_t address,
 116                                        char *name)
 117 {
 118     return cvmx_bootmem_alloc_named_range(size, address, address + size,
 119                                           0, name);
 120 }
 121
 122 void *cvmx_bootmem_alloc_named(uint64_t size, uint64_t alignment, char *name)
 123 {
 124     return cvmx_bootmem_alloc_named_range(size, 0, 0, alignment, name);
 125 }
 126 EXPORT_SYMBOL(cvmx_bootmem_alloc_named);
 127
 128 int cvmx_bootmem_free_named(char *name)
 129 {
 130         return cvmx_bootmem_phy_named_block_free(name, 0);
 131 }
 132
 133 struct cvmx_bootmem_named_block_desc *cvmx_bootmem_find_named_block(char *name)
 134 {
 135         return cvmx_bootmem_phy_named_block_find(name, 0);
 136 }
 137 EXPORT_SYMBOL(cvmx_bootmem_find_named_block);
 138
 139 void cvmx_bootmem_lock(void)
 140 {
 141         cvmx_spinlock_lock((cvmx_spinlock_t *) &(cvmx_bootmem_desc->lock));
 142 }
 143
 144 void cvmx_bootmem_unlock(void)
 145 {
 146         cvmx_spinlock_unlock((cvmx_spinlock_t *) &(cvmx_bootmem_desc->lock));
 147 }
 148
 149 int cvmx_bootmem_init(void *mem_desc_ptr)
 150 {
 151         /* Here we set the global pointer to the bootmem descriptor
 152          * block.  This pointer will be used directly, so we will set
 153          * it up to be directly usable by the application.  It is set
 154          * up as follows for the various runtime/ABI combinations:
 155          *
 156          * Linux 64 bit: Set XKPHYS bit
 157          * Linux 32 bit: use mmap to create mapping, use virtual address
 158          * CVMX 64 bit:  use physical address directly
 159          * CVMX 32 bit:  use physical address directly
 160          *
 161          * Note that the CVMX environment assumes the use of 1-1 TLB
 162          * mappings so that the physical addresses can be used
 163          * directly
 164          */
 165         if (!cvmx_bootmem_desc) {
 166 #if   defined(CVMX_ABI_64)
 167                 /* Set XKPHYS bit */
 168                 cvmx_bootmem_desc = cvmx_phys_to_ptr(CAST64(mem_desc_ptr));
 169 #else
 170                 cvmx_bootmem_desc = (struct cvmx_bootmem_desc *) mem_desc_ptr;
 171 #endif
 172         }
 173
 174         return 0;
 175 }
 176
 177 /*
 178  * The cvmx_bootmem_phy* functions below return 64 bit physical
 179  * addresses, and expose more features that the cvmx_bootmem_functions
 180  * above.  These are required for full memory space access in 32 bit
 181  * applications, as well as for using some advance features.  Most
 182  * applications should not need to use these.
 183  */
 184
 185 int64_t cvmx_bootmem_phy_alloc(uint64_t req_size, uint64_t address_min,
 186                                uint64_t address_max, uint64_t alignment,
 187                                uint32_t flags)
 188 {
 189
 190         uint64_t head_addr;
 191         uint64_t ent_addr;
 192         /* points to previous list entry, NULL current entry is head of list */
 193         uint64_t prev_addr = 0;
 194         uint64_t new_ent_addr = 0;
 195         uint64_t desired_min_addr;
 196
 197 #ifdef DEBUG
 198         cvmx_dprintf("cvmx_bootmem_phy_alloc: req_size: 0x%llx, "
 199                      "min_addr: 0x%llx, max_addr: 0x%llx, align: 0x%llx\n",
 200                      (unsigned long long)req_size,
 201                      (unsigned long long)address_min,
 202                      (unsigned long long)address_max,
 203                      (unsigned long long)alignment);
 204 #endif
 205
 206         if (cvmx_bootmem_desc->major_version > 3) {
 207                 cvmx_dprintf("ERROR: Incompatible bootmem descriptor "
 208                              "version: %d.%d at addr: %p\n",
 209                              (int)cvmx_bootmem_desc->major_version,
 210                              (int)cvmx_bootmem_desc->minor_version,
 211                              cvmx_bootmem_desc);
 212                 goto error_out;
 213         }
 214
 215         /*
 216          * Do a variety of checks to validate the arguments.  The
 217          * allocator code will later assume that these checks have
 218          * been made.  We validate that the requested constraints are
 219          * not self-contradictory before we look through the list of
 220          * available memory.
 221          */
 222
 223         /* 0 is not a valid req_size for this allocator */
 224         if (!req_size)
 225                 goto error_out;
 226
 227         /* Round req_size up to mult of minimum alignment bytes */
 228         req_size = (req_size + (CVMX_BOOTMEM_ALIGNMENT_SIZE - 1)) &
 229                 ~(CVMX_BOOTMEM_ALIGNMENT_SIZE - 1);
 230
 231         /*
 232          * Convert !0 address_min and 0 address_max to special case of
 233          * range that specifies an exact memory block to allocate.  Do
 234          * this before other checks and adjustments so that this
 235          * tranformation will be validated.
 236          */
 237         if (address_min && !address_max)
 238                 address_max = address_min + req_size;
 239         else if (!address_min && !address_max)
 240                 address_max = ~0ull;  /* If no limits given, use max limits */
 241
 242
 243         /*
 244          * Enforce minimum alignment (this also keeps the minimum free block
 245          * req_size the same as the alignment req_size.
 246          */
 247         if (alignment < CVMX_BOOTMEM_ALIGNMENT_SIZE)
 248                 alignment = CVMX_BOOTMEM_ALIGNMENT_SIZE;
 249
 250         /*
 251          * Adjust address minimum based on requested alignment (round
 252          * up to meet alignment).  Do this here so we can reject
 253          * impossible requests up front. (NOP for address_min == 0)
 254          */
 255         if (alignment)
 256                 address_min = __ALIGN_MASK(address_min, (alignment - 1));
 257
 258         /*
 259          * Reject inconsistent args.  We have adjusted these, so this
 260          * may fail due to our internal changes even if this check
 261          * would pass for the values the user supplied.
 262          */
 263         if (req_size > address_max - address_min)
 264                 goto error_out;
 265
 266         /* Walk through the list entries - first fit found is returned */
 267
 268         if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 269                 cvmx_bootmem_lock();
 270         head_addr = cvmx_bootmem_desc->head_addr;
 271         ent_addr = head_addr;
 272         for (; ent_addr;
 273              prev_addr = ent_addr,
 274              ent_addr = cvmx_bootmem_phy_get_next(ent_addr)) {
 275                 uint64_t usable_base, usable_max;
 276                 uint64_t ent_size = cvmx_bootmem_phy_get_size(ent_addr);
 277
 278                 if (cvmx_bootmem_phy_get_next(ent_addr)
 279                     && ent_addr > cvmx_bootmem_phy_get_next(ent_addr)) {
 280                         cvmx_dprintf("Internal bootmem_alloc() error: ent: "
 281                                 "0x%llx, next: 0x%llx\n",
 282                                 (unsigned long long)ent_addr,
 283                                 (unsigned long long)
 284                                 cvmx_bootmem_phy_get_next(ent_addr));
 285                         goto error_out;
 286                 }
 287
 288                 /*
 289                  * Determine if this is an entry that can satisify the
 290                  * request Check to make sure entry is large enough to
 291                  * satisfy request.
 292                  */
 293                 usable_base =
 294                     __ALIGN_MASK(max(address_min, ent_addr), alignment - 1);
 295                 usable_max = min(address_max, ent_addr + ent_size);
 296                 /*
 297                  * We should be able to allocate block at address
 298                  * usable_base.
 299                  */
 300
 301                 desired_min_addr = usable_base;
 302                 /*
 303                  * Determine if request can be satisfied from the
 304                  * current entry.
 305                  */
 306                 if (!((ent_addr + ent_size) > usable_base
 307                                 && ent_addr < address_max
 308                                 && req_size <= usable_max - usable_base))
 309                         continue;
 310                 /*
 311                  * We have found an entry that has room to satisfy the
 312                  * request, so allocate it from this entry.  If end
 313                  * CVMX_BOOTMEM_FLAG_END_ALLOC set, then allocate from
 314                  * the end of this block rather than the beginning.
 315                  */
 316                 if (flags & CVMX_BOOTMEM_FLAG_END_ALLOC) {
 317                         desired_min_addr = usable_max - req_size;
 318                         /*
 319                          * Align desired address down to required
 320                          * alignment.
 321                          */
 322                         desired_min_addr &= ~(alignment - 1);
 323                 }
 324
 325                 /* Match at start of entry */
 326                 if (desired_min_addr == ent_addr) {
 327                         if (req_size < ent_size) {
 328                                 /*
 329                                  * big enough to create a new block
 330                                  * from top portion of block.
 331                                  */
 332                                 new_ent_addr = ent_addr + req_size;
 333                                 cvmx_bootmem_phy_set_next(new_ent_addr,
 334                                         cvmx_bootmem_phy_get_next(ent_addr));
 335                                 cvmx_bootmem_phy_set_size(new_ent_addr,
 336                                                         ent_size -
 337                                                         req_size);
 338
 339                                 /*
 340                                  * Adjust next pointer as following
 341                                  * code uses this.
 342                                  */
 343                                 cvmx_bootmem_phy_set_next(ent_addr,
 344                                                         new_ent_addr);
 345                         }
 346
 347                         /*
 348                          * adjust prev ptr or head to remove this
 349                          * entry from list.
 350                          */
 351                         if (prev_addr)
 352                                 cvmx_bootmem_phy_set_next(prev_addr,
 353                                         cvmx_bootmem_phy_get_next(ent_addr));
 354                         else
 355                                 /*
 356                                  * head of list being returned, so
 357                                  * update head ptr.
 358                                  */
 359                                 cvmx_bootmem_desc->head_addr =
 360                                         cvmx_bootmem_phy_get_next(ent_addr);
 361
 362                         if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 363                                 cvmx_bootmem_unlock();
 364                         return desired_min_addr;
 365                 }
 366                 /*
 367                  * block returned doesn't start at beginning of entry,
 368                  * so we know that we will be splitting a block off
 369                  * the front of this one.  Create a new block from the
 370                  * beginning, add to list, and go to top of loop
 371                  * again.
 372                  *
 373                  * create new block from high portion of
 374                  * block, so that top block starts at desired
 375                  * addr.
 376                  */
 377                 new_ent_addr = desired_min_addr;
 378                 cvmx_bootmem_phy_set_next(new_ent_addr,
 379                                         cvmx_bootmem_phy_get_next
 380                                         (ent_addr));
 381                 cvmx_bootmem_phy_set_size(new_ent_addr,
 382                                         cvmx_bootmem_phy_get_size
 383                                         (ent_addr) -
 384                                         (desired_min_addr -
 385                                                 ent_addr));
 386                 cvmx_bootmem_phy_set_size(ent_addr,
 387                                         desired_min_addr - ent_addr);
 388                 cvmx_bootmem_phy_set_next(ent_addr, new_ent_addr);
 389                 /* Loop again to handle actual alloc from new block */
 390         }
 391 error_out:
 392         /* We didn't find anything, so return error */
 393         if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 394                 cvmx_bootmem_unlock();
 395         return -1;
 396 }
 397
 398 int __cvmx_bootmem_phy_free(uint64_t phy_addr, uint64_t size, uint32_t flags)
 399 {
 400         uint64_t cur_addr;
 401         uint64_t prev_addr = 0; /* zero is invalid */
 402         int retval = 0;
 403
 404 #ifdef DEBUG
 405         cvmx_dprintf("__cvmx_bootmem_phy_free addr: 0x%llx, size: 0x%llx\n",
 406                      (unsigned long long)phy_addr, (unsigned long long)size);
 407 #endif
 408         if (cvmx_bootmem_desc->major_version > 3) {
 409                 cvmx_dprintf("ERROR: Incompatible bootmem descriptor "
 410                              "version: %d.%d at addr: %p\n",
 411                              (int)cvmx_bootmem_desc->major_version,
 412                              (int)cvmx_bootmem_desc->minor_version,
 413                              cvmx_bootmem_desc);
 414                 return 0;
 415         }
 416
 417         /* 0 is not a valid size for this allocator */
 418         if (!size)
 419                 return 0;
 420
 421         if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 422                 cvmx_bootmem_lock();
 423         cur_addr = cvmx_bootmem_desc->head_addr;
 424         if (cur_addr == 0 || phy_addr < cur_addr) {
 425                 /* add at front of list - special case with changing head ptr */
 426                 if (cur_addr && phy_addr + size > cur_addr)
 427                         goto bootmem_free_done; /* error, overlapping section */
 428                 else if (phy_addr + size == cur_addr) {
 429                         /* Add to front of existing first block */
 430                         cvmx_bootmem_phy_set_next(phy_addr,
 431                                                   cvmx_bootmem_phy_get_next
 432                                                   (cur_addr));
 433                         cvmx_bootmem_phy_set_size(phy_addr,
 434                                                   cvmx_bootmem_phy_get_size
 435                                                   (cur_addr) + size);
 436                         cvmx_bootmem_desc->head_addr = phy_addr;
 437
 438                 } else {
 439                         /* New block before first block.  OK if cur_addr is 0 */
 440                         cvmx_bootmem_phy_set_next(phy_addr, cur_addr);
 441                         cvmx_bootmem_phy_set_size(phy_addr, size);
 442                         cvmx_bootmem_desc->head_addr = phy_addr;
 443                 }
 444                 retval = 1;
 445                 goto bootmem_free_done;
 446         }
 447
 448         /* Find place in list to add block */
 449         while (cur_addr && phy_addr > cur_addr) {
 450                 prev_addr = cur_addr;
 451                 cur_addr = cvmx_bootmem_phy_get_next(cur_addr);
 452         }
 453
 454         if (!cur_addr) {
 455                 /*
 456                  * We have reached the end of the list, add on to end,
 457                  * checking to see if we need to combine with last
 458                  * block
 459                  */
 460                 if (prev_addr + cvmx_bootmem_phy_get_size(prev_addr) ==
 461                     phy_addr) {
 462                         cvmx_bootmem_phy_set_size(prev_addr,
 463                                                   cvmx_bootmem_phy_get_size
 464                                                   (prev_addr) + size);
 465                 } else {
 466                         cvmx_bootmem_phy_set_next(prev_addr, phy_addr);
 467                         cvmx_bootmem_phy_set_size(phy_addr, size);
 468                         cvmx_bootmem_phy_set_next(phy_addr, 0);
 469                 }
 470                 retval = 1;
 471                 goto bootmem_free_done;
 472         } else {
 473                 /*
 474                  * insert between prev and cur nodes, checking for
 475                  * merge with either/both.
 476                  */
 477                 if (prev_addr + cvmx_bootmem_phy_get_size(prev_addr) ==
 478                     phy_addr) {
 479                         /* Merge with previous */
 480                         cvmx_bootmem_phy_set_size(prev_addr,
 481                                                   cvmx_bootmem_phy_get_size
 482                                                   (prev_addr) + size);
 483                         if (phy_addr + size == cur_addr) {
 484                                 /* Also merge with current */
 485                                 cvmx_bootmem_phy_set_size(prev_addr,
 486                                         cvmx_bootmem_phy_get_size(cur_addr) +
 487                                         cvmx_bootmem_phy_get_size(prev_addr));
 488                                 cvmx_bootmem_phy_set_next(prev_addr,
 489                                         cvmx_bootmem_phy_get_next(cur_addr));
 490                         }
 491                         retval = 1;
 492                         goto bootmem_free_done;
 493                 } else if (phy_addr + size == cur_addr) {
 494                         /* Merge with current */
 495                         cvmx_bootmem_phy_set_size(phy_addr,
 496                                                   cvmx_bootmem_phy_get_size
 497                                                   (cur_addr) + size);
 498                         cvmx_bootmem_phy_set_next(phy_addr,
 499                                                   cvmx_bootmem_phy_get_next
 500                                                   (cur_addr));
 501                         cvmx_bootmem_phy_set_next(prev_addr, phy_addr);
 502                         retval = 1;
 503                         goto bootmem_free_done;
 504                 }
 505
 506                 /* It is a standalone block, add in between prev and cur */
 507                 cvmx_bootmem_phy_set_size(phy_addr, size);
 508                 cvmx_bootmem_phy_set_next(phy_addr, cur_addr);
 509                 cvmx_bootmem_phy_set_next(prev_addr, phy_addr);
 510
 511         }
 512         retval = 1;
 513
 514 bootmem_free_done:
 515         if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 516                 cvmx_bootmem_unlock();
 517         return retval;
 518
 519 }
 520
 521 struct cvmx_bootmem_named_block_desc *
 522         cvmx_bootmem_phy_named_block_find(char *name, uint32_t flags)
 523 {
 524         unsigned int i;
 525         struct cvmx_bootmem_named_block_desc *named_block_array_ptr;
 526
 527 #ifdef DEBUG
 528         cvmx_dprintf("cvmx_bootmem_phy_named_block_find: %s\n", name);
 529 #endif
 530         /*
 531          * Lock the structure to make sure that it is not being
 532          * changed while we are examining it.
 533          */
 534         if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 535                 cvmx_bootmem_lock();
 536
 537         /* Use XKPHYS for 64 bit linux */
 538         named_block_array_ptr = (struct cvmx_bootmem_named_block_desc *)
 539             cvmx_phys_to_ptr(cvmx_bootmem_desc->named_block_array_addr);
 540
 541 #ifdef DEBUG
 542         cvmx_dprintf
 543             ("cvmx_bootmem_phy_named_block_find: named_block_array_ptr: %p\n",
 544              named_block_array_ptr);
 545 #endif
 546         if (cvmx_bootmem_desc->major_version == 3) {
 547                 for (i = 0;
 548                      i < cvmx_bootmem_desc->named_block_num_blocks; i++) {
 549                         if ((name && named_block_array_ptr[i].size
 550                              && !strncmp(name, named_block_array_ptr[i].name,
 551                                          cvmx_bootmem_desc->named_block_name_len
 552                                          - 1))
 553                             || (!name && !named_block_array_ptr[i].size)) {
 554                                 if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 555                                         cvmx_bootmem_unlock();
 556
 557                                 return &(named_block_array_ptr[i]);
 558                         }
 559                 }
 560         } else {
 561                 cvmx_dprintf("ERROR: Incompatible bootmem descriptor "
 562                              "version: %d.%d at addr: %p\n",
 563                              (int)cvmx_bootmem_desc->major_version,
 564                              (int)cvmx_bootmem_desc->minor_version,
 565                              cvmx_bootmem_desc);
 566         }
 567         if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 568                 cvmx_bootmem_unlock();
 569
 570         return NULL;
 571 }
 572
 573 int cvmx_bootmem_phy_named_block_free(char *name, uint32_t flags)
 574 {
 575         struct cvmx_bootmem_named_block_desc *named_block_ptr;
 576
 577         if (cvmx_bootmem_desc->major_version != 3) {
 578                 cvmx_dprintf("ERROR: Incompatible bootmem descriptor version: "
 579                              "%d.%d at addr: %p\n",
 580                              (int)cvmx_bootmem_desc->major_version,
 581                              (int)cvmx_bootmem_desc->minor_version,
 582                              cvmx_bootmem_desc);
 583                 return 0;
 584         }
 585 #ifdef DEBUG
 586         cvmx_dprintf("cvmx_bootmem_phy_named_block_free: %s\n", name);
 587 #endif
 588
 589         /*
 590          * Take lock here, as name lookup/block free/name free need to
 591          * be atomic.
 592          */
 593         cvmx_bootmem_lock();
 594
 595         named_block_ptr =
 596             cvmx_bootmem_phy_named_block_find(name,
 597                                               CVMX_BOOTMEM_FLAG_NO_LOCKING);
 598         if (named_block_ptr) {
 599 #ifdef DEBUG
 600                 cvmx_dprintf("cvmx_bootmem_phy_named_block_free: "
 601                              "%s, base: 0x%llx, size: 0x%llx\n",
 602                              name,
 603                              (unsigned long long)named_block_ptr->base_addr,
 604                              (unsigned long long)named_block_ptr->size);
 605 #endif
 606                 __cvmx_bootmem_phy_free(named_block_ptr->base_addr,
 607                                         named_block_ptr->size,
 608                                         CVMX_BOOTMEM_FLAG_NO_LOCKING);
 609                 named_block_ptr->size = 0;
 610                 /* Set size to zero to indicate block not used. */
 611         }
 612
 613         cvmx_bootmem_unlock();
 614         return named_block_ptr != NULL; /* 0 on failure, 1 on success */
 615 }
 616
 617 int64_t cvmx_bootmem_phy_named_block_alloc(uint64_t size, uint64_t min_addr,
 618                                            uint64_t max_addr,
 619                                            uint64_t alignment,
 620                                            char *name,
 621                                            uint32_t flags)
 622 {
 623         int64_t addr_allocated;
 624         struct cvmx_bootmem_named_block_desc *named_block_desc_ptr;
 625
 626 #ifdef DEBUG
 627         cvmx_dprintf("cvmx_bootmem_phy_named_block_alloc: size: 0x%llx, min: "
 628                      "0x%llx, max: 0x%llx, align: 0x%llx, name: %s\n",
 629                      (unsigned long long)size,
 630                      (unsigned long long)min_addr,
 631                      (unsigned long long)max_addr,
 632                      (unsigned long long)alignment,
 633                      name);
 634 #endif
 635         if (cvmx_bootmem_desc->major_version != 3) {
 636                 cvmx_dprintf("ERROR: Incompatible bootmem descriptor version: "
 637                              "%d.%d at addr: %p\n",
 638                              (int)cvmx_bootmem_desc->major_version,
 639                              (int)cvmx_bootmem_desc->minor_version,
 640                              cvmx_bootmem_desc);
 641                 return -1;
 642         }
 643
 644         /*
 645          * Take lock here, as name lookup/block alloc/name add need to
 646          * be atomic.
 647          */
 648         if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 649                 cvmx_spinlock_lock((cvmx_spinlock_t *)&(cvmx_bootmem_desc->lock));
 650
 651         /* Get pointer to first available named block descriptor */
 652         named_block_desc_ptr =
 653                 cvmx_bootmem_phy_named_block_find(NULL,
 654                                                   flags | CVMX_BOOTMEM_FLAG_NO_LOCKING);
 655
 656         /*
 657          * Check to see if name already in use, return error if name
 658          * not available or no more room for blocks.
 659          */
 660         if (cvmx_bootmem_phy_named_block_find(name,
 661                                               flags | CVMX_BOOTMEM_FLAG_NO_LOCKING) || !named_block_desc_ptr) {
 662                 if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 663                         cvmx_spinlock_unlock((cvmx_spinlock_t *)&(cvmx_bootmem_desc->lock));
 664                 return -1;
 665         }
 666
 667
 668         /*
 669          * Round size up to mult of minimum alignment bytes We need
 670          * the actual size allocated to allow for blocks to be
 671          * coallesced when they are freed.  The alloc routine does the
 672          * same rounding up on all allocations.
 673          */
 674         size = __ALIGN_MASK(size, (CVMX_BOOTMEM_ALIGNMENT_SIZE - 1));
 675
 676         addr_allocated = cvmx_bootmem_phy_alloc(size, min_addr, max_addr,
 677                                                 alignment,
 678                                                 flags | CVMX_BOOTMEM_FLAG_NO_LOCKING);
 679         if (addr_allocated >= 0) {
 680                 named_block_desc_ptr->base_addr = addr_allocated;
 681                 named_block_desc_ptr->size = size;
 682                 strncpy(named_block_desc_ptr->name, name,
 683                         cvmx_bootmem_desc->named_block_name_len);
 684                 named_block_desc_ptr->name[cvmx_bootmem_desc->named_block_name_len - 1] = 0;
 685         }
 686
 687         if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING))
 688                 cvmx_spinlock_unlock((cvmx_spinlock_t *)&(cvmx_bootmem_desc->lock));
 689         return addr_allocated;
 690 }