cvmx-bootmem.c revision 215990
1/***********************license start*************** 2 * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights 3 * reserved. 4 * 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 13 * * Redistributions in binary form must reproduce the above 14 * copyright notice, this list of conditions and the following 15 * disclaimer in the documentation and/or other materials provided 16 * with the distribution. 17 18 * * Neither the name of Cavium Networks nor the names of 19 * its contributors may be used to endorse or promote products 20 * derived from this software without specific prior written 21 * permission. 22 23 * This Software, including technical data, may be subject to U.S. export control 24 * laws, including the U.S. Export Administration Act and its associated 25 * regulations, and may be subject to export or import regulations in other 26 * countries. 27 28 * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" 29 * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR 30 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO 31 * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR 32 * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM 33 * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE, 34 * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF 35 * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR 36 * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR 37 * PERFORMANCE OF THE SOFTWARE LIES WITH YOU. 38 ***********************license end**************************************/ 39 40 41 42 43 44 45/** 46 * @file 47 * Simple allocate only memory allocator. Used to allocate memory at application 48 * start time. 49 * 50 * <hr>$Revision: 52119 $<hr> 51 * 52 */ 53#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 54#include <linux/module.h> 55#include <asm/octeon/cvmx.h> 56#include <asm/octeon/cvmx-bootmem.h> 57#else 58#if !defined(__FreeBSD__) || !defined(_KERNEL) 59#include "executive-config.h" 60#endif 61#include "cvmx.h" 62#include "cvmx-bootmem.h" 63#endif 64typedef uint32_t cvmx_spinlock_t; 65 66 67//#define DEBUG 68 69#define ULL unsigned long long 70#undef MAX 71#define MAX(a, b) (((a) > (b)) ? (a) : (b)) 72 73#undef MIN 74#define MIN(a, b) (((a) < (b)) ? (a) : (b)) 75 76#define ALIGN_ADDR_UP(addr, align) (((addr) + (~(align))) & (align)) 77 78/** 79 * This is the physical location of a cvmx_bootmem_desc_t 80 * structure in Octeon's memory. Note that dues to addressing 81 * limits or runtime environment it might not be possible to 82 * create a C pointer to this structure. 83 */ 84static CVMX_SHARED uint64_t cvmx_bootmem_desc_addr = 0; 85 86/** 87 * This macro returns the size of a member of a structure. 88 * Logically it is the same as "sizeof(s::field)" in C++, but 89 * C lacks the "::" operator. 90 */ 91#define SIZEOF_FIELD(s, field) sizeof(((s*)NULL)->field) 92 93/** 94 * This macro returns a member of the cvmx_bootmem_desc_t 95 * structure. These members can't be directly addressed as 96 * they might be in memory not directly reachable. In the case 97 * where bootmem is compiled with LINUX_HOST, the structure 98 * itself might be located on a remote Octeon. The argument 99 * "field" is the member name of the cvmx_bootmem_desc_t to read. 100 * Regardless of the type of the field, the return type is always 101 * a uint64_t. 102 */ 103#define CVMX_BOOTMEM_DESC_GET_FIELD(field) \ 104 __cvmx_bootmem_desc_get(cvmx_bootmem_desc_addr, \ 105 offsetof(cvmx_bootmem_desc_t, field), \ 106 SIZEOF_FIELD(cvmx_bootmem_desc_t, field)) 107 108/** 109 * This macro writes a member of the cvmx_bootmem_desc_t 110 * structure. These members can't be directly addressed as 111 * they might be in memory not directly reachable. In the case 112 * where bootmem is compiled with LINUX_HOST, the structure 113 * itself might be located on a remote Octeon. The argument 114 * "field" is the member name of the cvmx_bootmem_desc_t to write. 115 */ 116#define CVMX_BOOTMEM_DESC_SET_FIELD(field, value) \ 117 __cvmx_bootmem_desc_set(cvmx_bootmem_desc_addr, \ 118 offsetof(cvmx_bootmem_desc_t, field), \ 119 SIZEOF_FIELD(cvmx_bootmem_desc_t, field), value) 120 121/** 122 * This macro returns a member of the 123 * cvmx_bootmem_named_block_desc_t structure. These members can't 124 * be directly addressed as they might be in memory not directly 125 * reachable. In the case where bootmem is compiled with 126 * LINUX_HOST, the structure itself might be located on a remote 127 * Octeon. The argument "field" is the member name of the 128 * cvmx_bootmem_named_block_desc_t to read. Regardless of the type 129 * of the field, the return type is always a uint64_t. The "addr" 130 * parameter is the physical address of the structure. 131 */ 132#define CVMX_BOOTMEM_NAMED_GET_FIELD(addr, field) \ 133 __cvmx_bootmem_desc_get(addr, \ 134 offsetof(cvmx_bootmem_named_block_desc_t, field), \ 135 SIZEOF_FIELD(cvmx_bootmem_named_block_desc_t, field)) 136 137/** 138 * This macro writes a member of the cvmx_bootmem_named_block_desc_t 139 * structure. These members can't be directly addressed as 140 * they might be in memory not directly reachable. In the case 141 * where bootmem is compiled with LINUX_HOST, the structure 142 * itself might be located on a remote Octeon. The argument 143 * "field" is the member name of the 144 * cvmx_bootmem_named_block_desc_t to write. The "addr" parameter 145 * is the physical address of the structure. 146 */ 147#define CVMX_BOOTMEM_NAMED_SET_FIELD(addr, field, value) \ 148 __cvmx_bootmem_desc_set(addr, \ 149 offsetof(cvmx_bootmem_named_block_desc_t, field), \ 150 SIZEOF_FIELD(cvmx_bootmem_named_block_desc_t, field), value) 151 152/** 153 * This function is the implementation of the get macros defined 154 * for individual structure members. The argument are generated 155 * by the macros inorder to read only the needed memory. 156 * 157 * @param base 64bit physical address of the complete structure 158 * @param offset Offset from the beginning of the structure to the member being 159 * accessed. 160 * @param size Size of the structure member. 161 * 162 * @return Value of the structure member promoted into a uint64_t. 163 */ 164static inline uint64_t __cvmx_bootmem_desc_get(uint64_t base, int offset, int size) 165{ 166 base = (1ull << 63) | (base + offset); 167 switch (size) 168 { 169 case 4: 170 return cvmx_read64_uint32(base); 171 case 8: 172 return cvmx_read64_uint64(base); 173 default: 174 return 0; 175 } 176} 177 178/** 179 * This function is the implementation of the set macros defined 180 * for individual structure members. The argument are generated 181 * by the macros in order to write only the needed memory. 182 * 183 * @param base 64bit physical address of the complete structure 184 * @param offset Offset from the beginning of the structure to the member being 185 * accessed. 186 * @param size Size of the structure member. 187 * @param value Value to write into the structure 188 */ 189static inline void __cvmx_bootmem_desc_set(uint64_t base, int offset, int size, uint64_t value) 190{ 191 base = (1ull << 63) | (base + offset); 192 switch (size) 193 { 194 case 4: 195 cvmx_write64_uint32(base, value); 196 break; 197 case 8: 198 cvmx_write64_uint64(base, value); 199 break; 200 default: 201 break; 202 } 203} 204 205/** 206 * This function retrieves the string name of a named block. It is 207 * more complicated than a simple memcpy() since the named block 208 * descriptor may not be directly accessable. 209 * 210 * @param addr Physical address of the named block descriptor 211 * @param str String to receive the named block string name 212 * @param len Length of the string buffer, which must match the length 213 * stored in the bootmem descriptor. 214 */ 215static void CVMX_BOOTMEM_NAMED_GET_NAME(uint64_t addr, char *str, int len) 216{ 217#ifndef CVMX_BUILD_FOR_LINUX_HOST 218 int l = len; 219 char *ptr = str; 220 addr |= (1ull << 63); 221 addr += offsetof(cvmx_bootmem_named_block_desc_t, name); 222 while (l--) 223 *ptr++ = cvmx_read64_uint8(addr++); 224 str[len] = 0; 225#else 226 extern void octeon_remote_read_mem(void *buffer, uint64_t physical_address, int length); 227 addr += offsetof(cvmx_bootmem_named_block_desc_t, name); 228 octeon_remote_read_mem(str, addr, len); 229 str[len] = 0; 230#endif 231} 232 233/** 234 * This function stores the string name of a named block. It is 235 * more complicated than a simple memcpy() since the named block 236 * descriptor may not be directly accessable. 237 * 238 * @param addr Physical address of the named block descriptor 239 * @param str String to store into the named block string name 240 * @param len Length of the string buffer, which must match the length 241 * stored in the bootmem descriptor. 242 */ 243static void CVMX_BOOTMEM_NAMED_SET_NAME(uint64_t addr, const char *str, int len) 244{ 245#ifndef CVMX_BUILD_FOR_LINUX_HOST 246 int l = len; 247 addr |= (1ull << 63); 248 addr += offsetof(cvmx_bootmem_named_block_desc_t, name); 249 while (l--) 250 { 251 if (l) 252 cvmx_write64_uint8(addr++, *str++); 253 else 254 cvmx_write64_uint8(addr++, 0); 255 } 256#else 257 extern void octeon_remote_write_mem(uint64_t physical_address, const void *buffer, int length); 258 char zero = 0; 259 addr += offsetof(cvmx_bootmem_named_block_desc_t, name); 260 octeon_remote_write_mem(addr, str, len-1); 261 octeon_remote_write_mem(addr+len-1, &zero, 1); 262#endif 263} 264 265/* See header file for descriptions of functions */ 266 267/* Wrapper functions are provided for reading/writing the size and next block 268** values as these may not be directly addressible (in 32 bit applications, for instance.) 269*/ 270/* Offsets of data elements in bootmem list, must match cvmx_bootmem_block_header_t */ 271#define NEXT_OFFSET 0 272#define SIZE_OFFSET 8 273static void cvmx_bootmem_phy_set_size(uint64_t addr, uint64_t size) 274{ 275 cvmx_write64_uint64((addr + SIZE_OFFSET) | (1ull << 63), size); 276} 277static void cvmx_bootmem_phy_set_next(uint64_t addr, uint64_t next) 278{ 279 cvmx_write64_uint64((addr + NEXT_OFFSET) | (1ull << 63), next); 280} 281static uint64_t cvmx_bootmem_phy_get_size(uint64_t addr) 282{ 283 return(cvmx_read64_uint64((addr + SIZE_OFFSET) | (1ull << 63))); 284} 285static uint64_t cvmx_bootmem_phy_get_next(uint64_t addr) 286{ 287 return(cvmx_read64_uint64((addr + NEXT_OFFSET) | (1ull << 63))); 288} 289 290/** 291 * Check the version information on the bootmem descriptor 292 * 293 * @param exact_match 294 * Exact major version to check against. A zero means 295 * check that the version supports named blocks. 296 * 297 * @return Zero if the version is correct. Negative if the version is 298 * incorrect. Failures also cause a message to be displayed. 299 */ 300static int __cvmx_bootmem_check_version(int exact_match) 301{ 302 int major_version; 303#ifdef CVMX_BUILD_FOR_LINUX_HOST 304 if (!cvmx_bootmem_desc_addr) 305 cvmx_bootmem_desc_addr = cvmx_read64_uint64(0x24100); 306#endif 307 major_version = CVMX_BOOTMEM_DESC_GET_FIELD(major_version); 308 if ((major_version > 3) || (exact_match && major_version != exact_match)) 309 { 310 cvmx_dprintf("ERROR: Incompatible bootmem descriptor version: %d.%d at addr: 0x%llx\n", 311 major_version, (int)CVMX_BOOTMEM_DESC_GET_FIELD(minor_version), 312 (ULL)cvmx_bootmem_desc_addr); 313 return -1; 314 } 315 else 316 return 0; 317} 318 319/** 320 * Get the low level bootmem descriptor lock. If no locking 321 * is specified in the flags, then nothing is done. 322 * 323 * @param flags CVMX_BOOTMEM_FLAG_NO_LOCKING means this functions should do 324 * nothing. This is used to support nested bootmem calls. 325 */ 326static inline void __cvmx_bootmem_lock(uint32_t flags) 327{ 328 if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING)) 329 { 330#ifndef CVMX_BUILD_FOR_LINUX_HOST 331 /* Unfortunately we can't use the normal cvmx-spinlock code as the 332 memory for the bootmem descriptor may be not accessable by a C 333 pointer. We use a 64bit XKPHYS address to access the memory 334 directly */ 335 uint64_t lock_addr = (1ull << 63) | (cvmx_bootmem_desc_addr + offsetof(cvmx_bootmem_desc_t, lock)); 336 unsigned int tmp; 337 338 __asm__ __volatile__( 339 ".set noreorder \n" 340 "1: ll %[tmp], 0(%[addr])\n" 341 " bnez %[tmp], 1b \n" 342 " li %[tmp], 1 \n" 343 " sc %[tmp], 0(%[addr])\n" 344 " beqz %[tmp], 1b \n" 345 " nop \n" 346 ".set reorder \n" 347 : [tmp] "=&r" (tmp) 348 : [addr] "r" (lock_addr) 349 : "memory"); 350#endif 351 } 352} 353 354/** 355 * Release the low level bootmem descriptor lock. If no locking 356 * is specified in the flags, then nothing is done. 357 * 358 * @param flags CVMX_BOOTMEM_FLAG_NO_LOCKING means this functions should do 359 * nothing. This is used to support nested bootmem calls. 360 */ 361static inline void __cvmx_bootmem_unlock(uint32_t flags) 362{ 363 if (!(flags & CVMX_BOOTMEM_FLAG_NO_LOCKING)) 364 { 365#ifndef CVMX_BUILD_FOR_LINUX_HOST 366 /* Unfortunately we can't use the normal cvmx-spinlock code as the 367 memory for the bootmem descriptor may be not accessable by a C 368 pointer. We use a 64bit XKPHYS address to access the memory 369 directly */ 370 uint64_t lock_addr = (1ull << 63) | (cvmx_bootmem_desc_addr + offsetof(cvmx_bootmem_desc_t, lock)); 371 372 CVMX_SYNCW; 373 __asm__ __volatile__("sw $0, 0(%[addr])\n" 374 :: [addr] "r" (lock_addr) 375 : "memory"); 376 CVMX_SYNCW; 377#endif 378 } 379} 380 381/* Some of the cvmx-bootmem functions dealing with C pointers are not supported 382 when we are compiling for CVMX_BUILD_FOR_LINUX_HOST. This ifndef removes 383 these functions when they aren't needed */ 384#ifndef CVMX_BUILD_FOR_LINUX_HOST 385/* This functions takes an address range and adjusts it as necessary to 386** match the ABI that is currently being used. This is required to ensure 387** that bootmem_alloc* functions only return valid pointers for 32 bit ABIs */ 388static int __cvmx_validate_mem_range(uint64_t *min_addr_ptr, uint64_t *max_addr_ptr) 389{ 390 391#if defined(__linux__) && defined(CVMX_ABI_N32) 392 { 393 extern uint64_t linux_mem32_min; 394 extern uint64_t linux_mem32_max; 395 /* For 32 bit Linux apps, we need to restrict the allocations to the range 396 ** of memory configured for access from userspace. Also, we need to add mappings 397 ** for the data structures that we access.*/ 398 399 /* Narrow range requests to be bounded by the 32 bit limits. octeon_phy_mem_block_alloc() 400 ** will reject inconsistent req_size/range requests, so we don't repeat those checks here. 401 ** If max unspecified, set to 32 bit maximum. */ 402 *min_addr_ptr = MIN(MAX(*min_addr_ptr, linux_mem32_min), linux_mem32_max); 403 if (!*max_addr_ptr) 404 *max_addr_ptr = linux_mem32_max; 405 else 406 *max_addr_ptr = MAX(MIN(*max_addr_ptr, linux_mem32_max), linux_mem32_min); 407 } 408#elif defined(CVMX_ABI_N32) 409 { 410 uint32_t max_phys = 0x0FFFFFFF; /* Max physical address when 1-1 mappings not used */ 411#if CVMX_USE_1_TO_1_TLB_MAPPINGS 412 max_phys = 0x7FFFFFFF; 413#endif 414 /* We are are running standalone simple executive, so we need to limit the range 415 ** that we allocate from */ 416 417 /* Narrow range requests to be bounded by the 32 bit limits. octeon_phy_mem_block_alloc() 418 ** will reject inconsistent req_size/range requests, so we don't repeat those checks here. 419 ** If max unspecified, set to 32 bit maximum. */ 420 *min_addr_ptr = MIN(MAX(*min_addr_ptr, 0x0), max_phys); 421 if (!*max_addr_ptr) 422 *max_addr_ptr = max_phys; 423 else 424 *max_addr_ptr = MAX(MIN(*max_addr_ptr, max_phys), 0x0); 425 } 426#endif 427 428 return 0; 429} 430 431 432void *cvmx_bootmem_alloc_range(uint64_t size, uint64_t alignment, uint64_t min_addr, uint64_t max_addr) 433{ 434 int64_t address; 435 436 __cvmx_validate_mem_range(&min_addr, &max_addr); 437 address = cvmx_bootmem_phy_alloc(size, min_addr, max_addr, alignment, 0); 438 439 if (address > 0) 440 return cvmx_phys_to_ptr(address); 441 else 442 return NULL; 443} 444#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 445EXPORT_SYMBOL(cvmx_bootmem_alloc_range); 446#endif 447 448void *cvmx_bootmem_alloc_address(uint64_t size, uint64_t address, uint64_t alignment) 449{ 450 return cvmx_bootmem_alloc_range(size, alignment, address, address + size); 451} 452 453 454void *cvmx_bootmem_alloc(uint64_t size, uint64_t alignment) 455{ 456 return cvmx_bootmem_alloc_range(size, alignment, 0, 0); 457} 458#ifdef CVMX_BUILD_FOR_LINUX_KERNEL 459EXPORT_SYMBOL(cvmx_bootmem_alloc); 460#endif 461 462void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr, uint64_t max_addr, uint64_t align, const char *name) 463{ 464 int64_t addr; 465 466 __cvmx_validate_mem_range(&min_addr, &max_addr); 467 addr = cvmx_bootmem_phy_named_block_alloc(size, min_addr, max_addr, align, name, 0); 468 if (addr >= 0) 469 return cvmx_phys_to_ptr(addr); 470 else 471 return NULL; 472 473} 474void *cvmx_bootmem_alloc_named_address(uint64_t size, uint64_t address, const char *name) 475{ 476 return(cvmx_bootmem_alloc_named_range(size, address, address + size, 0, name)); 477} 478void *cvmx_bootmem_alloc_named(uint64_t size, uint64_t alignment, const char *name) 479{ 480 return(cvmx_bootmem_alloc_named_range(size, 0, 0, alignment, name)); 481} 482 483int cvmx_bootmem_free_named(const char *name) 484{ 485 return(cvmx_bootmem_phy_named_block_free(name, 0)); 486} 487#endif 488 489const cvmx_bootmem_named_block_desc_t *cvmx_bootmem_find_named_block(const char *name) 490{ 491 /* FIXME: Returning a single static object is probably a bad thing */ 492 static cvmx_bootmem_named_block_desc_t desc; 493 uint64_t named_addr = cvmx_bootmem_phy_named_block_find(name, 0); 494 if (named_addr) 495 { 496 desc.base_addr = CVMX_BOOTMEM_NAMED_GET_FIELD(named_addr, base_addr); 497 desc.size = CVMX_BOOTMEM_NAMED_GET_FIELD(named_addr, size); 498 strncpy(desc.name, name, sizeof(desc.name)); 499 desc.name[sizeof(desc.name)-1] = 0; 500 return &desc; 501 } 502 else 503 return NULL; 504} 505 506void cvmx_bootmem_print_named(void) 507{ 508 cvmx_bootmem_phy_named_block_print(); 509} 510 511int cvmx_bootmem_init(uint64_t mem_desc_addr) 512{ 513 /* Verify that the size of cvmx_spinlock_t meets our assumptions */ 514 if (sizeof(cvmx_spinlock_t) != 4) 515 { 516 cvmx_dprintf("ERROR: Unexpected size of cvmx_spinlock_t\n"); 517 return(-1); 518 } 519 if (!cvmx_bootmem_desc_addr) 520 cvmx_bootmem_desc_addr = mem_desc_addr; 521 return(0); 522} 523 524 525uint64_t cvmx_bootmem_available_mem(uint64_t min_block_size) 526{ 527 return(cvmx_bootmem_phy_available_mem(min_block_size)); 528} 529 530 531 532 533 534/********************************************************************* 535** The cvmx_bootmem_phy* functions below return 64 bit physical addresses, 536** and expose more features that the cvmx_bootmem_functions above. These are 537** required for full memory space access in 32 bit applications, as well as for 538** using some advance features. 539** Most applications should not need to use these. 540** 541**/ 542 543 544int64_t cvmx_bootmem_phy_alloc(uint64_t req_size, uint64_t address_min, uint64_t address_max, uint64_t alignment, uint32_t flags) 545{ 546 547 uint64_t head_addr; 548 uint64_t ent_addr; 549 uint64_t prev_addr = 0; /* points to previous list entry, NULL current entry is head of list */ 550 uint64_t new_ent_addr = 0; 551 uint64_t desired_min_addr; 552 uint64_t alignment_mask = ~(alignment - 1); 553 554#ifdef DEBUG 555 cvmx_dprintf("cvmx_bootmem_phy_alloc: req_size: 0x%llx, min_addr: 0x%llx, max_addr: 0x%llx, align: 0x%llx\n", 556 (ULL)req_size, (ULL)address_min, (ULL)address_max, (ULL)alignment); 557#endif 558 559 if (__cvmx_bootmem_check_version(0)) 560 goto error_out; 561 562 /* Do a variety of checks to validate the arguments. The allocator code will later assume 563 ** that these checks have been made. We validate that the requested constraints are not 564 ** self-contradictory before we look through the list of available memory 565 */ 566 567 /* 0 is not a valid req_size for this allocator */ 568 if (!req_size) 569 goto error_out; 570 571 /* Round req_size up to mult of minimum alignment bytes */ 572 req_size = (req_size + (CVMX_BOOTMEM_ALIGNMENT_SIZE - 1)) & ~(CVMX_BOOTMEM_ALIGNMENT_SIZE - 1); 573 574 /* Convert !0 address_min and 0 address_max to special case of range that specifies an exact 575 ** memory block to allocate. Do this before other checks and adjustments so that this tranformation will be validated */ 576 if (address_min && !address_max) 577 address_max = address_min + req_size; 578 else if (!address_min && !address_max) 579 address_max = ~0ull; /* If no limits given, use max limits */ 580 581 582 583 584 /* Enforce minimum alignment (this also keeps the minimum free block 585 ** req_size the same as the alignment req_size */ 586 if (alignment < CVMX_BOOTMEM_ALIGNMENT_SIZE) 587 { 588 alignment = CVMX_BOOTMEM_ALIGNMENT_SIZE; 589 } 590 alignment_mask = ~(alignment - 1); 591 592 /* Adjust address minimum based on requested alignment (round up to meet alignment). Do this here so we can 593 ** reject impossible requests up front. (NOP for address_min == 0) */ 594 if (alignment) 595 address_min = (address_min + (alignment - 1)) & ~(alignment - 1); 596 597 598 /* Reject inconsistent args. We have adjusted these, so this may fail due to our internal changes 599 ** even if this check would pass for the values the user supplied. */ 600 if (req_size > address_max - address_min) 601 goto error_out; 602 603 /* Walk through the list entries - first fit found is returned */ 604 605 __cvmx_bootmem_lock(flags); 606 head_addr = CVMX_BOOTMEM_DESC_GET_FIELD(head_addr); 607 ent_addr = head_addr; 608 while (ent_addr) 609 { 610 uint64_t usable_base, usable_max; 611 uint64_t ent_size = cvmx_bootmem_phy_get_size(ent_addr); 612 613 if (cvmx_bootmem_phy_get_next(ent_addr) && ent_addr > cvmx_bootmem_phy_get_next(ent_addr)) 614 { 615 cvmx_dprintf("Internal bootmem_alloc() error: ent: 0x%llx, next: 0x%llx\n", 616 (ULL)ent_addr, (ULL)cvmx_bootmem_phy_get_next(ent_addr)); 617 goto error_out; 618 } 619 620 /* Determine if this is an entry that can satisify the request */ 621 /* Check to make sure entry is large enough to satisfy request */ 622 usable_base = ALIGN_ADDR_UP(MAX(address_min, ent_addr), alignment_mask); 623 usable_max = MIN(address_max, ent_addr + ent_size); 624 /* We should be able to allocate block at address usable_base */ 625 626 desired_min_addr = usable_base; 627 628 /* Determine if request can be satisfied from the current entry */ 629 if ((((ent_addr + ent_size) > usable_base && ent_addr < address_max)) 630 && req_size <= usable_max - usable_base) 631 { 632 /* We have found an entry that has room to satisfy the request, so allocate it from this entry */ 633 634 /* If end CVMX_BOOTMEM_FLAG_END_ALLOC set, then allocate from the end of this block 635 ** rather than the beginning */ 636 if (flags & CVMX_BOOTMEM_FLAG_END_ALLOC) 637 { 638 desired_min_addr = usable_max - req_size; 639 /* Align desired address down to required alignment */ 640 desired_min_addr &= alignment_mask; 641 } 642 643 /* Match at start of entry */ 644 if (desired_min_addr == ent_addr) 645 { 646 if (req_size < ent_size) 647 { 648 /* big enough to create a new block from top portion of block */ 649 new_ent_addr = ent_addr + req_size; 650 cvmx_bootmem_phy_set_next(new_ent_addr, cvmx_bootmem_phy_get_next(ent_addr)); 651 cvmx_bootmem_phy_set_size(new_ent_addr, ent_size - req_size); 652 653 /* Adjust next pointer as following code uses this */ 654 cvmx_bootmem_phy_set_next(ent_addr, new_ent_addr); 655 } 656 657 /* adjust prev ptr or head to remove this entry from list */ 658 if (prev_addr) 659 { 660 cvmx_bootmem_phy_set_next(prev_addr, cvmx_bootmem_phy_get_next(ent_addr)); 661 } 662 else 663 { 664 /* head of list being returned, so update head ptr */ 665 CVMX_BOOTMEM_DESC_SET_FIELD(head_addr, cvmx_bootmem_phy_get_next(ent_addr)); 666 } 667 __cvmx_bootmem_unlock(flags); 668 return(desired_min_addr); 669 } 670 671 672 /* block returned doesn't start at beginning of entry, so we know 673 ** that we will be splitting a block off the front of this one. Create a new block 674 ** from the beginning, add to list, and go to top of loop again. 675 ** 676 ** create new block from high portion of block, so that top block 677 ** starts at desired addr 678 **/ 679 new_ent_addr = desired_min_addr; 680 cvmx_bootmem_phy_set_next(new_ent_addr, cvmx_bootmem_phy_get_next(ent_addr)); 681 cvmx_bootmem_phy_set_size(new_ent_addr, cvmx_bootmem_phy_get_size(ent_addr) - (desired_min_addr - ent_addr)); 682 cvmx_bootmem_phy_set_size(ent_addr, desired_min_addr - ent_addr); 683 cvmx_bootmem_phy_set_next(ent_addr, new_ent_addr); 684 /* Loop again to handle actual alloc from new block */ 685 } 686 687 prev_addr = ent_addr; 688 ent_addr = cvmx_bootmem_phy_get_next(ent_addr); 689 } 690error_out: 691 /* We didn't find anything, so return error */ 692 __cvmx_bootmem_unlock(flags); 693 return(-1); 694} 695 696 697 698int __cvmx_bootmem_phy_free(uint64_t phy_addr, uint64_t size, uint32_t flags) 699{ 700 uint64_t cur_addr; 701 uint64_t prev_addr = 0; /* zero is invalid */ 702 int retval = 0; 703 704#ifdef DEBUG 705 cvmx_dprintf("__cvmx_bootmem_phy_free addr: 0x%llx, size: 0x%llx\n", (ULL)phy_addr, (ULL)size); 706#endif 707 if (__cvmx_bootmem_check_version(0)) 708 return(0); 709 710 /* 0 is not a valid size for this allocator */ 711 if (!size) 712 return(0); 713 714 715 __cvmx_bootmem_lock(flags); 716 cur_addr = CVMX_BOOTMEM_DESC_GET_FIELD(head_addr); 717 if (cur_addr == 0 || phy_addr < cur_addr) 718 { 719 /* add at front of list - special case with changing head ptr */ 720 if (cur_addr && phy_addr + size > cur_addr) 721 goto bootmem_free_done; /* error, overlapping section */ 722 else if (phy_addr + size == cur_addr) 723 { 724 /* Add to front of existing first block */ 725 cvmx_bootmem_phy_set_next(phy_addr, cvmx_bootmem_phy_get_next(cur_addr)); 726 cvmx_bootmem_phy_set_size(phy_addr, cvmx_bootmem_phy_get_size(cur_addr) + size); 727 CVMX_BOOTMEM_DESC_SET_FIELD(head_addr, phy_addr); 728 729 } 730 else 731 { 732 /* New block before first block */ 733 cvmx_bootmem_phy_set_next(phy_addr, cur_addr); /* OK if cur_addr is 0 */ 734 cvmx_bootmem_phy_set_size(phy_addr, size); 735 CVMX_BOOTMEM_DESC_SET_FIELD(head_addr, phy_addr); 736 } 737 retval = 1; 738 goto bootmem_free_done; 739 } 740 741 /* Find place in list to add block */ 742 while (cur_addr && phy_addr > cur_addr) 743 { 744 prev_addr = cur_addr; 745 cur_addr = cvmx_bootmem_phy_get_next(cur_addr); 746 } 747 748 if (!cur_addr) 749 { 750 /* We have reached the end of the list, add on to end, checking 751 ** to see if we need to combine with last block 752 **/ 753 if (prev_addr + cvmx_bootmem_phy_get_size(prev_addr) == phy_addr) 754 { 755 cvmx_bootmem_phy_set_size(prev_addr, cvmx_bootmem_phy_get_size(prev_addr) + size); 756 } 757 else 758 { 759 cvmx_bootmem_phy_set_next(prev_addr, phy_addr); 760 cvmx_bootmem_phy_set_size(phy_addr, size); 761 cvmx_bootmem_phy_set_next(phy_addr, 0); 762 } 763 retval = 1; 764 goto bootmem_free_done; 765 } 766 else 767 { 768 /* insert between prev and cur nodes, checking for merge with either/both */ 769 770 if (prev_addr + cvmx_bootmem_phy_get_size(prev_addr) == phy_addr) 771 { 772 /* Merge with previous */ 773 cvmx_bootmem_phy_set_size(prev_addr, cvmx_bootmem_phy_get_size(prev_addr) + size); 774 if (phy_addr + size == cur_addr) 775 { 776 /* Also merge with current */ 777 cvmx_bootmem_phy_set_size(prev_addr, cvmx_bootmem_phy_get_size(cur_addr) + cvmx_bootmem_phy_get_size(prev_addr)); 778 cvmx_bootmem_phy_set_next(prev_addr, cvmx_bootmem_phy_get_next(cur_addr)); 779 } 780 retval = 1; 781 goto bootmem_free_done; 782 } 783 else if (phy_addr + size == cur_addr) 784 { 785 /* Merge with current */ 786 cvmx_bootmem_phy_set_size(phy_addr, cvmx_bootmem_phy_get_size(cur_addr) + size); 787 cvmx_bootmem_phy_set_next(phy_addr, cvmx_bootmem_phy_get_next(cur_addr)); 788 cvmx_bootmem_phy_set_next(prev_addr, phy_addr); 789 retval = 1; 790 goto bootmem_free_done; 791 } 792 793 /* It is a standalone block, add in between prev and cur */ 794 cvmx_bootmem_phy_set_size(phy_addr, size); 795 cvmx_bootmem_phy_set_next(phy_addr, cur_addr); 796 cvmx_bootmem_phy_set_next(prev_addr, phy_addr); 797 798 799 } 800 retval = 1; 801 802bootmem_free_done: 803 __cvmx_bootmem_unlock(flags); 804 return(retval); 805 806} 807 808 809 810void cvmx_bootmem_phy_list_print(void) 811{ 812 uint64_t addr; 813 814 addr = CVMX_BOOTMEM_DESC_GET_FIELD(head_addr); 815 cvmx_dprintf("\n\n\nPrinting bootmem block list, descriptor: 0x%llx, head is 0x%llx\n", 816 (ULL)cvmx_bootmem_desc_addr, (ULL)addr); 817 cvmx_dprintf("Descriptor version: %d.%d\n", 818 (int)CVMX_BOOTMEM_DESC_GET_FIELD(major_version), 819 (int)CVMX_BOOTMEM_DESC_GET_FIELD(minor_version)); 820 if (CVMX_BOOTMEM_DESC_GET_FIELD(major_version) > 3) 821 { 822 cvmx_dprintf("Warning: Bootmem descriptor version is newer than expected\n"); 823 } 824 if (!addr) 825 { 826 cvmx_dprintf("mem list is empty!\n"); 827 } 828 while (addr) 829 { 830 cvmx_dprintf("Block address: 0x%08qx, size: 0x%08qx, next: 0x%08qx\n", 831 (ULL)addr, 832 (ULL)cvmx_bootmem_phy_get_size(addr), 833 (ULL)cvmx_bootmem_phy_get_next(addr)); 834 addr = cvmx_bootmem_phy_get_next(addr); 835 } 836 cvmx_dprintf("\n\n"); 837 838} 839 840 841uint64_t cvmx_bootmem_phy_available_mem(uint64_t min_block_size) 842{ 843 uint64_t addr; 844 845 uint64_t available_mem = 0; 846 847 __cvmx_bootmem_lock(0); 848 addr = CVMX_BOOTMEM_DESC_GET_FIELD(head_addr); 849 while (addr) 850 { 851 if (cvmx_bootmem_phy_get_size(addr) >= min_block_size) 852 available_mem += cvmx_bootmem_phy_get_size(addr); 853 addr = cvmx_bootmem_phy_get_next(addr); 854 } 855 __cvmx_bootmem_unlock(0); 856 return(available_mem); 857 858} 859 860 861 862uint64_t cvmx_bootmem_phy_named_block_find(const char *name, uint32_t flags) 863{ 864 uint64_t result = 0; 865 866#ifdef DEBUG 867 cvmx_dprintf("cvmx_bootmem_phy_named_block_find: %s\n", name); 868#endif 869 __cvmx_bootmem_lock(flags); 870 if (!__cvmx_bootmem_check_version(3)) 871 { 872 int i; 873 uint64_t named_block_array_addr = CVMX_BOOTMEM_DESC_GET_FIELD(named_block_array_addr); 874 int num_blocks = CVMX_BOOTMEM_DESC_GET_FIELD(named_block_num_blocks); 875 int name_length = CVMX_BOOTMEM_DESC_GET_FIELD(named_block_name_len); 876 uint64_t named_addr = named_block_array_addr; 877 for (i = 0; i < num_blocks; i++) 878 { 879 uint64_t named_size = CVMX_BOOTMEM_NAMED_GET_FIELD(named_addr, size); 880 if (name && named_size) 881 { 882 char name_tmp[name_length]; 883 CVMX_BOOTMEM_NAMED_GET_NAME(named_addr, name_tmp, name_length); 884 if (!strncmp(name, name_tmp, name_length - 1)) 885 { 886 result = named_addr; 887 break; 888 } 889 } 890 else if (!name && !named_size) 891 { 892 result = named_addr; 893 break; 894 } 895 named_addr += sizeof(cvmx_bootmem_named_block_desc_t); 896 } 897 } 898 __cvmx_bootmem_unlock(flags); 899 return result; 900} 901 902int cvmx_bootmem_phy_named_block_free(const char *name, uint32_t flags) 903{ 904 uint64_t named_block_addr; 905 906 if (__cvmx_bootmem_check_version(3)) 907 return(0); 908#ifdef DEBUG 909 cvmx_dprintf("cvmx_bootmem_phy_named_block_free: %s\n", name); 910#endif 911 912 /* Take lock here, as name lookup/block free/name free need to be atomic */ 913 __cvmx_bootmem_lock(flags); 914 915 named_block_addr = cvmx_bootmem_phy_named_block_find(name, CVMX_BOOTMEM_FLAG_NO_LOCKING); 916 if (named_block_addr) 917 { 918 uint64_t named_addr = CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_addr, base_addr); 919 uint64_t named_size = CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_addr, size); 920#ifdef DEBUG 921 cvmx_dprintf("cvmx_bootmem_phy_named_block_free: %s, base: 0x%llx, size: 0x%llx\n", 922 name, (ULL)named_addr, (ULL)named_size); 923#endif 924 __cvmx_bootmem_phy_free(named_addr, named_size, CVMX_BOOTMEM_FLAG_NO_LOCKING); 925 /* Set size to zero to indicate block not used. */ 926 CVMX_BOOTMEM_NAMED_SET_FIELD(named_block_addr, size, 0); 927 } 928 __cvmx_bootmem_unlock(flags); 929 return(!!named_block_addr); /* 0 on failure, 1 on success */ 930} 931 932 933 934 935 936int64_t cvmx_bootmem_phy_named_block_alloc(uint64_t size, uint64_t min_addr, uint64_t max_addr, uint64_t alignment, const char *name, uint32_t flags) 937{ 938 int64_t addr_allocated; 939 uint64_t named_block_desc_addr; 940 941#ifdef DEBUG 942 cvmx_dprintf("cvmx_bootmem_phy_named_block_alloc: size: 0x%llx, min: 0x%llx, max: 0x%llx, align: 0x%llx, name: %s\n", 943 (ULL)size, 944 (ULL)min_addr, 945 (ULL)max_addr, 946 (ULL)alignment, 947 name); 948#endif 949 950 if (__cvmx_bootmem_check_version(3)) 951 return(-1); 952 953 /* Take lock here, as name lookup/block alloc/name add need to be atomic */ 954 955 __cvmx_bootmem_lock(flags); 956 957 named_block_desc_addr = cvmx_bootmem_phy_named_block_find(name, flags | CVMX_BOOTMEM_FLAG_NO_LOCKING); 958 if (named_block_desc_addr) 959 { 960 __cvmx_bootmem_unlock(flags); 961 return(-1); 962 } 963 964 /* Get pointer to first available named block descriptor */ 965 named_block_desc_addr = cvmx_bootmem_phy_named_block_find(NULL, flags | CVMX_BOOTMEM_FLAG_NO_LOCKING); 966 if (!named_block_desc_addr) 967 { 968 __cvmx_bootmem_unlock(flags); 969 return(-1); 970 } 971 972 /* Round size up to mult of minimum alignment bytes 973 ** We need the actual size allocated to allow for blocks to be coallesced 974 ** when they are freed. The alloc routine does the same rounding up 975 ** on all allocations. */ 976 size = (size + (CVMX_BOOTMEM_ALIGNMENT_SIZE - 1)) & ~(CVMX_BOOTMEM_ALIGNMENT_SIZE - 1); 977 978 addr_allocated = cvmx_bootmem_phy_alloc(size, min_addr, max_addr, alignment, flags | CVMX_BOOTMEM_FLAG_NO_LOCKING); 979 if (addr_allocated >= 0) 980 { 981 CVMX_BOOTMEM_NAMED_SET_FIELD(named_block_desc_addr, base_addr, addr_allocated); 982 CVMX_BOOTMEM_NAMED_SET_FIELD(named_block_desc_addr, size, size); 983 CVMX_BOOTMEM_NAMED_SET_NAME(named_block_desc_addr, name, CVMX_BOOTMEM_DESC_GET_FIELD(named_block_name_len)); 984 } 985 986 __cvmx_bootmem_unlock(flags); 987 return(addr_allocated); 988} 989 990 991 992 993void cvmx_bootmem_phy_named_block_print(void) 994{ 995 int i; 996 int printed = 0; 997 998 uint64_t named_block_array_addr = CVMX_BOOTMEM_DESC_GET_FIELD(named_block_array_addr); 999 int num_blocks = CVMX_BOOTMEM_DESC_GET_FIELD(named_block_num_blocks); 1000 int name_length = CVMX_BOOTMEM_DESC_GET_FIELD(named_block_name_len); 1001 uint64_t named_block_addr = named_block_array_addr; 1002 1003#ifdef DEBUG 1004 cvmx_dprintf("cvmx_bootmem_phy_named_block_print, desc addr: 0x%llx\n", 1005 (ULL)cvmx_bootmem_desc_addr); 1006#endif 1007 if (__cvmx_bootmem_check_version(3)) 1008 return; 1009 cvmx_dprintf("List of currently allocated named bootmem blocks:\n"); 1010 for (i = 0; i < num_blocks; i++) 1011 { 1012 uint64_t named_size = CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_addr, size); 1013 if (named_size) 1014 { 1015 char name_tmp[name_length]; 1016 uint64_t named_addr = CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_addr, base_addr); 1017 CVMX_BOOTMEM_NAMED_GET_NAME(named_block_addr, name_tmp, name_length); 1018 printed++; 1019 cvmx_dprintf("Name: %s, address: 0x%08qx, size: 0x%08qx, index: %d\n", 1020 name_tmp, (ULL)named_addr, (ULL)named_size, i); 1021 } 1022 named_block_addr += sizeof(cvmx_bootmem_named_block_desc_t); 1023 } 1024 if (!printed) 1025 { 1026 cvmx_dprintf("No named bootmem blocks exist.\n"); 1027 } 1028 1029} 1030 1031 1032/* Real physical addresses of memory regions */ 1033#define OCTEON_DDR0_BASE (0x0ULL) 1034#define OCTEON_DDR0_SIZE (0x010000000ULL) 1035#define OCTEON_DDR1_BASE (OCTEON_IS_MODEL(OCTEON_CN6XXX) ? 0x20000000ULL : 0x410000000ULL) 1036#define OCTEON_DDR1_SIZE (0x010000000ULL) 1037#define OCTEON_DDR2_BASE (OCTEON_IS_MODEL(OCTEON_CN6XXX) ? 0x30000000ULL : 0x20000000ULL) 1038#define OCTEON_DDR2_SIZE (OCTEON_IS_MODEL(OCTEON_CN6XXX) ? 0x7d0000000ULL : 0x3e0000000ULL) 1039#define OCTEON_MAX_PHY_MEM_SIZE (OCTEON_IS_MODEL(OCTEON_CN63XX) ? 32*1024*1024*1024ULL : 16*1024*1024*1024ULL) 1040int64_t cvmx_bootmem_phy_mem_list_init(uint64_t mem_size, uint32_t low_reserved_bytes, cvmx_bootmem_desc_t *desc_buffer) 1041{ 1042 uint64_t cur_block_addr; 1043 int64_t addr; 1044 int i; 1045 1046#ifdef DEBUG 1047 cvmx_dprintf("cvmx_bootmem_phy_mem_list_init (arg desc ptr: %p, cvmx_bootmem_desc: 0x%llx)\n", 1048 desc_buffer, (ULL)cvmx_bootmem_desc_addr); 1049#endif 1050 1051 /* Descriptor buffer needs to be in 32 bit addressable space to be compatible with 1052 ** 32 bit applications */ 1053 if (!desc_buffer) 1054 { 1055 cvmx_dprintf("ERROR: no memory for cvmx_bootmem descriptor provided\n"); 1056 return 0; 1057 } 1058 1059 if (mem_size > OCTEON_MAX_PHY_MEM_SIZE) 1060 { 1061 mem_size = OCTEON_MAX_PHY_MEM_SIZE; 1062 cvmx_dprintf("ERROR: requested memory size too large, truncating to maximum size\n"); 1063 } 1064 1065 if (cvmx_bootmem_desc_addr) 1066 return 1; 1067 1068 /* Initialize cvmx pointer to descriptor */ 1069#ifndef CVMX_BUILD_FOR_LINUX_HOST 1070 cvmx_bootmem_init(cvmx_ptr_to_phys(desc_buffer)); 1071#else 1072 cvmx_bootmem_init((unsigned long)desc_buffer); 1073#endif 1074 1075 /* Fill the bootmem descriptor */ 1076 CVMX_BOOTMEM_DESC_SET_FIELD(lock, 0); 1077 CVMX_BOOTMEM_DESC_SET_FIELD(flags, 0); 1078 CVMX_BOOTMEM_DESC_SET_FIELD(head_addr, 0); 1079 CVMX_BOOTMEM_DESC_SET_FIELD(major_version, CVMX_BOOTMEM_DESC_MAJ_VER); 1080 CVMX_BOOTMEM_DESC_SET_FIELD(minor_version, CVMX_BOOTMEM_DESC_MIN_VER); 1081 CVMX_BOOTMEM_DESC_SET_FIELD(app_data_addr, 0); 1082 CVMX_BOOTMEM_DESC_SET_FIELD(app_data_size, 0); 1083 1084 /* Set up global pointer to start of list, exclude low 64k for exception vectors, space for global descriptor */ 1085 cur_block_addr = (OCTEON_DDR0_BASE + low_reserved_bytes); 1086 1087 if (mem_size <= OCTEON_DDR0_SIZE) 1088 { 1089 __cvmx_bootmem_phy_free(cur_block_addr, mem_size - low_reserved_bytes, 0); 1090 goto frees_done; 1091 } 1092 1093 __cvmx_bootmem_phy_free(cur_block_addr, OCTEON_DDR0_SIZE - low_reserved_bytes, 0); 1094 1095 mem_size -= OCTEON_DDR0_SIZE; 1096 1097 /* Add DDR2 block next if present */ 1098 if (mem_size > OCTEON_DDR1_SIZE) 1099 { 1100 __cvmx_bootmem_phy_free(OCTEON_DDR1_BASE, OCTEON_DDR1_SIZE, 0); 1101 __cvmx_bootmem_phy_free(OCTEON_DDR2_BASE, mem_size - OCTEON_DDR1_SIZE, 0); 1102 } 1103 else 1104 { 1105 __cvmx_bootmem_phy_free(OCTEON_DDR1_BASE, mem_size, 0); 1106 1107 } 1108frees_done: 1109 1110 /* Initialize the named block structure */ 1111 CVMX_BOOTMEM_DESC_SET_FIELD(named_block_name_len, CVMX_BOOTMEM_NAME_LEN); 1112 CVMX_BOOTMEM_DESC_SET_FIELD(named_block_num_blocks, CVMX_BOOTMEM_NUM_NAMED_BLOCKS); 1113 CVMX_BOOTMEM_DESC_SET_FIELD(named_block_array_addr, 0); 1114 1115 /* Allocate this near the top of the low 256 MBytes of memory */ 1116 addr = cvmx_bootmem_phy_alloc(CVMX_BOOTMEM_NUM_NAMED_BLOCKS * sizeof(cvmx_bootmem_named_block_desc_t),0, 0x10000000, 0 ,CVMX_BOOTMEM_FLAG_END_ALLOC); 1117 if (addr >= 0) 1118 CVMX_BOOTMEM_DESC_SET_FIELD(named_block_array_addr, addr); 1119 1120#ifdef DEBUG 1121 cvmx_dprintf("cvmx_bootmem_phy_mem_list_init: named_block_array_addr: 0x%llx)\n", 1122 (ULL)addr); 1123#endif 1124 if (!addr) 1125 { 1126 cvmx_dprintf("FATAL ERROR: unable to allocate memory for bootmem descriptor!\n"); 1127 return(0); 1128 } 1129 for (i=0; i<CVMX_BOOTMEM_NUM_NAMED_BLOCKS; i++) 1130 { 1131 CVMX_BOOTMEM_NAMED_SET_FIELD(addr, base_addr, 0); 1132 CVMX_BOOTMEM_NAMED_SET_FIELD(addr, size, 0); 1133 addr += sizeof(cvmx_bootmem_named_block_desc_t); 1134 } 1135 1136 return(1); 1137} 1138 1139 1140void cvmx_bootmem_lock(void) 1141{ 1142 __cvmx_bootmem_lock(0); 1143} 1144 1145void cvmx_bootmem_unlock(void) 1146{ 1147 __cvmx_bootmem_unlock(0); 1148} 1149 1150#ifndef CVMX_BUILD_FOR_LINUX_HOST 1151void *__cvmx_bootmem_internal_get_desc_ptr(void) 1152{ 1153 return cvmx_phys_to_ptr(cvmx_bootmem_desc_addr); 1154} 1155#endif 1156