1 /* 2 * Copyright (c) 2014-2021 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2021 Qualcomm Innovation Center, Inc. All rights reserved. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for 6 * any purpose with or without fee is hereby granted, provided that the 7 * above copyright notice and this permission notice appear in all 8 * copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 /** 21 * DOC: i_qdf_mem.h 22 * Linux-specific definitions for QDF memory API's 23 */ 24 25 #ifndef __I_QDF_MEM_H 26 #define __I_QDF_MEM_H 27 28 #ifdef __KERNEL__ 29 #if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 17) 30 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33) 31 #include <linux/autoconf.h> 32 #else 33 #include <generated/autoconf.h> 34 #endif 35 #endif 36 #include <linux/slab.h> 37 #include <linux/hardirq.h> 38 #include <linux/vmalloc.h> 39 #include <linux/pci.h> /* pci_alloc_consistent */ 40 #include <linux/cache.h> /* L1_CACHE_BYTES */ 41 42 #define __qdf_cache_line_sz L1_CACHE_BYTES 43 #include "queue.h" 44 45 #else 46 /* 47 * Provide dummy defs for kernel data types, functions, and enums 48 * used in this header file. 49 */ 50 #define GFP_KERNEL 0 51 #define GFP_ATOMIC 0 52 #define kzalloc(size, flags) NULL 53 #define vmalloc(size) NULL 54 #define kfree(buf) 55 #define vfree(buf) 56 #define pci_alloc_consistent(dev, size, paddr) NULL 57 #define __qdf_mempool_t void* 58 #define QDF_RET_IP NULL 59 #endif /* __KERNEL__ */ 60 #include <qdf_status.h> 61 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 9, 0)) && defined(MSM_PLATFORM) 62 #include <linux/qcom-iommu-util.h> 63 #endif 64 65 #if IS_ENABLED(CONFIG_ARM_SMMU) 66 #include <pld_common.h> 67 #ifdef ENABLE_SMMU_S1_TRANSLATION 68 #if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 4, 0)) 69 #include <asm/dma-iommu.h> 70 #endif 71 #endif 72 #include <linux/iommu.h> 73 #endif 74 75 #ifdef __KERNEL__ 76 typedef struct mempool_elem { 77 STAILQ_ENTRY(mempool_elem) mempool_entry; 78 } mempool_elem_t; 79 80 /** 81 * typedef __qdf_mempool_ctxt_t - Memory pool context 82 * @pool_id: pool identifier 83 * @flags: flags 84 * @elem_size: size of each pool element in bytes 85 * @pool_mem: pool_addr address of the pool created 86 * @mem_size: Total size of the pool in bytes 87 * @free_list: free pool list 88 * @lock: spinlock object 89 * @max_elem: Maximum number of elements in tha pool 90 * @free_cnt: Number of free elements available 91 */ 92 typedef struct __qdf_mempool_ctxt { 93 int pool_id; 94 u_int32_t flags; 95 size_t elem_size; 96 void *pool_mem; 97 u_int32_t mem_size; 98 99 STAILQ_HEAD(, mempool_elem) free_list; 100 spinlock_t lock; 101 u_int32_t max_elem; 102 u_int32_t free_cnt; 103 } __qdf_mempool_ctxt_t; 104 105 #endif /* __KERNEL__ */ 106 107 #define __page_size ((size_t)PAGE_SIZE) 108 #define __qdf_align(a, mask) ALIGN(a, mask) 109 110 #ifdef DISABLE_MEMDEBUG_PANIC 111 #define QDF_MEMDEBUG_PANIC(reason_fmt, args...) \ 112 do { \ 113 /* no-op */ \ 114 } while (false) 115 #else 116 #define QDF_MEMDEBUG_PANIC(reason_fmt, args...) \ 117 QDF_DEBUG_PANIC(reason_fmt, ## args) 118 #endif 119 120 /* typedef for dma_data_direction */ 121 typedef enum dma_data_direction __dma_data_direction; 122 123 /** 124 * __qdf_dma_dir_to_os() - Convert DMA data direction to OS specific enum 125 * @dir: QDF DMA data direction 126 * 127 * Return: 128 * enum dma_data_direction 129 */ 130 static inline 131 enum dma_data_direction __qdf_dma_dir_to_os(qdf_dma_dir_t qdf_dir) 132 { 133 switch (qdf_dir) { 134 case QDF_DMA_BIDIRECTIONAL: 135 return DMA_BIDIRECTIONAL; 136 case QDF_DMA_TO_DEVICE: 137 return DMA_TO_DEVICE; 138 case QDF_DMA_FROM_DEVICE: 139 return DMA_FROM_DEVICE; 140 default: 141 return DMA_NONE; 142 } 143 } 144 145 146 /** 147 * __qdf_mem_map_nbytes_single - Map memory for DMA 148 * @osdev: pomter OS device context 149 * @buf: pointer to memory to be dma mapped 150 * @dir: DMA map direction 151 * @nbytes: number of bytes to be mapped. 152 * @phy_addr: ponter to recive physical address. 153 * 154 * Return: success/failure 155 */ 156 static inline uint32_t __qdf_mem_map_nbytes_single(qdf_device_t osdev, 157 void *buf, qdf_dma_dir_t dir, 158 int nbytes, 159 qdf_dma_addr_t *phy_addr) 160 { 161 /* assume that the OS only provides a single fragment */ 162 *phy_addr = dma_map_single(osdev->dev, buf, nbytes, 163 __qdf_dma_dir_to_os(dir)); 164 return dma_mapping_error(osdev->dev, *phy_addr) ? 165 QDF_STATUS_E_FAILURE : QDF_STATUS_SUCCESS; 166 } 167 168 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 20) 169 static inline void __qdf_mem_dma_cache_sync(qdf_device_t osdev, 170 qdf_dma_addr_t buf, 171 qdf_dma_dir_t dir, 172 int nbytes) 173 { 174 dma_cache_sync(osdev->dev, buf, nbytes, __qdf_dma_dir_to_os(dir)); 175 } 176 #else 177 static inline void __qdf_mem_dma_cache_sync(qdf_device_t osdev, 178 qdf_dma_addr_t buf, 179 qdf_dma_dir_t dir, 180 int nbytes) 181 { 182 dma_sync_single_for_cpu(osdev->dev, buf, nbytes, 183 __qdf_dma_dir_to_os(dir)); 184 } 185 #endif 186 187 /** 188 * __qdf_mem_unmap_nbytes_single() - un_map memory for DMA 189 * 190 * @osdev: pomter OS device context 191 * @phy_addr: physical address of memory to be dma unmapped 192 * @dir: DMA unmap direction 193 * @nbytes: number of bytes to be unmapped. 194 * 195 * Return - none 196 */ 197 static inline void __qdf_mem_unmap_nbytes_single(qdf_device_t osdev, 198 qdf_dma_addr_t phy_addr, 199 qdf_dma_dir_t dir, int nbytes) 200 { 201 dma_unmap_single(osdev->dev, phy_addr, nbytes, 202 __qdf_dma_dir_to_os(dir)); 203 } 204 #ifdef __KERNEL__ 205 206 typedef __qdf_mempool_ctxt_t *__qdf_mempool_t; 207 208 int __qdf_mempool_init(qdf_device_t osdev, __qdf_mempool_t *pool, int pool_cnt, 209 size_t pool_entry_size, u_int32_t flags); 210 void __qdf_mempool_destroy(qdf_device_t osdev, __qdf_mempool_t pool); 211 void *__qdf_mempool_alloc(qdf_device_t osdev, __qdf_mempool_t pool); 212 void __qdf_mempool_free(qdf_device_t osdev, __qdf_mempool_t pool, void *buf); 213 #define QDF_RET_IP ((void *)_RET_IP_) 214 215 #define __qdf_mempool_elem_size(_pool) ((_pool)->elem_size) 216 #endif 217 218 /** 219 * __qdf_mem_smmu_s1_enabled() - Return SMMU stage 1 translation enable status 220 * @osdev parent device instance 221 * 222 * Return: true if smmu s1 enabled, false if smmu s1 is bypassed 223 */ 224 static inline bool __qdf_mem_smmu_s1_enabled(qdf_device_t osdev) 225 { 226 return osdev->smmu_s1_enabled; 227 } 228 229 #if IS_ENABLED(CONFIG_ARM_SMMU) && defined(ENABLE_SMMU_S1_TRANSLATION) 230 /* 231 * typedef __qdf_iommu_domain_t: abstraction for struct iommu_domain 232 */ 233 typedef struct iommu_domain __qdf_iommu_domain_t; 234 235 /** 236 * __qdf_iommu_attr_to_os() - Convert qdf iommu attribute to OS specific enum 237 * @attr: QDF iommu attribute 238 * 239 * Return: enum iommu_attr 240 */ 241 static inline 242 enum iommu_attr __qdf_iommu_attr_to_os(enum qdf_iommu_attr attr) 243 { 244 switch (attr) { 245 case QDF_DOMAIN_ATTR_GEOMETRY: 246 return DOMAIN_ATTR_GEOMETRY; 247 case QDF_DOMAIN_ATTR_PAGING: 248 return DOMAIN_ATTR_PAGING; 249 case QDF_DOMAIN_ATTR_WINDOWS: 250 return DOMAIN_ATTR_WINDOWS; 251 case QDF_DOMAIN_ATTR_FSL_PAMU_STASH: 252 return DOMAIN_ATTR_FSL_PAMU_STASH; 253 case QDF_DOMAIN_ATTR_FSL_PAMU_ENABLE: 254 return DOMAIN_ATTR_FSL_PAMU_ENABLE; 255 case QDF_DOMAIN_ATTR_FSL_PAMUV1: 256 return DOMAIN_ATTR_FSL_PAMUV1; 257 case QDF_DOMAIN_ATTR_NESTING: 258 return DOMAIN_ATTR_NESTING; 259 case QDF_DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE: 260 return DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE; 261 case QDF_DOMAIN_ATTR_CONTEXT_BANK: 262 return DOMAIN_ATTR_CONTEXT_BANK; 263 case QDF_DOMAIN_ATTR_NON_FATAL_FAULTS: 264 return DOMAIN_ATTR_NON_FATAL_FAULTS; 265 case QDF_DOMAIN_ATTR_S1_BYPASS: 266 return DOMAIN_ATTR_S1_BYPASS; 267 case QDF_DOMAIN_ATTR_ATOMIC: 268 return DOMAIN_ATTR_ATOMIC; 269 case QDF_DOMAIN_ATTR_SECURE_VMID: 270 return DOMAIN_ATTR_SECURE_VMID; 271 case QDF_DOMAIN_ATTR_FAST: 272 return DOMAIN_ATTR_FAST; 273 case QDF_DOMAIN_ATTR_PGTBL_INFO: 274 return DOMAIN_ATTR_PGTBL_INFO; 275 case QDF_DOMAIN_ATTR_USE_UPSTREAM_HINT: 276 return DOMAIN_ATTR_USE_UPSTREAM_HINT; 277 case QDF_DOMAIN_ATTR_EARLY_MAP: 278 return DOMAIN_ATTR_EARLY_MAP; 279 case QDF_DOMAIN_ATTR_PAGE_TABLE_IS_COHERENT: 280 return DOMAIN_ATTR_PAGE_TABLE_IS_COHERENT; 281 case QDF_DOMAIN_ATTR_PAGE_TABLE_FORCE_COHERENT: 282 return DOMAIN_ATTR_PAGE_TABLE_FORCE_COHERENT; 283 case QDF_DOMAIN_ATTR_USE_LLC_NWA: 284 return DOMAIN_ATTR_USE_LLC_NWA; 285 case QDF_DOMAIN_ATTR_SPLIT_TABLES: 286 return DOMAIN_ATTR_SPLIT_TABLES; 287 case QDF_DOMAIN_ATTR_FAULT_MODEL_NO_CFRE: 288 return DOMAIN_ATTR_FAULT_MODEL_NO_CFRE; 289 case QDF_DOMAIN_ATTR_FAULT_MODEL_NO_STALL: 290 return DOMAIN_ATTR_FAULT_MODEL_NO_STALL; 291 case QDF_DOMAIN_ATTR_FAULT_MODEL_HUPCF: 292 return DOMAIN_ATTR_FAULT_MODEL_HUPCF; 293 default: 294 return DOMAIN_ATTR_EXTENDED_MAX; 295 } 296 } 297 298 /** 299 * __qdf_iommu_domain_get_attr() - API to get iommu domain attributes 300 * 301 * @domain: iommu domain 302 * @attr: iommu attribute 303 * @data: data pointer 304 * 305 * Return: iommu domain attr 306 */ 307 static inline int 308 __qdf_iommu_domain_get_attr(__qdf_iommu_domain_t *domain, 309 enum qdf_iommu_attr attr, void *data) 310 { 311 return iommu_domain_get_attr(domain, __qdf_iommu_attr_to_os(attr), 312 data); 313 } 314 315 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 19, 0)) 316 /** 317 * __qdf_dev_get_domain() - get iommu domain from osdev 318 * @osdev: parent device instance 319 * 320 * Return: iommu domain 321 */ 322 static inline struct iommu_domain * 323 __qdf_dev_get_domain(qdf_device_t osdev) 324 { 325 return osdev->domain; 326 } 327 #else 328 static inline struct iommu_domain * 329 __qdf_dev_get_domain(qdf_device_t osdev) 330 { 331 if (osdev->iommu_mapping) 332 return osdev->iommu_mapping->domain; 333 334 return NULL; 335 } 336 #endif 337 338 /** 339 * __qdf_mem_paddr_from_dmaaddr() - get actual physical address from dma_addr 340 * @osdev: parent device instance 341 * @dma_addr: dma_addr 342 * 343 * Get actual physical address from dma_addr based on SMMU enablement status. 344 * IF SMMU Stage 1 translation is enabled, DMA APIs return IO virtual address 345 * (IOVA) otherwise returns physical address. So get SMMU physical address 346 * mapping from IOVA. 347 * 348 * Return: dmaable physical address 349 */ 350 static inline unsigned long 351 __qdf_mem_paddr_from_dmaaddr(qdf_device_t osdev, 352 qdf_dma_addr_t dma_addr) 353 { 354 struct iommu_domain *domain; 355 356 if (__qdf_mem_smmu_s1_enabled(osdev)) { 357 domain = __qdf_dev_get_domain(osdev); 358 if (domain) 359 return iommu_iova_to_phys(domain, dma_addr); 360 } 361 362 return dma_addr; 363 } 364 #else 365 static inline unsigned long 366 __qdf_mem_paddr_from_dmaaddr(qdf_device_t osdev, 367 qdf_dma_addr_t dma_addr) 368 { 369 return dma_addr; 370 } 371 #endif 372 373 /** 374 * __qdf_os_mem_dma_get_sgtable() - Returns DMA memory scatter gather table 375 * @dev: device instace 376 * @sgt: scatter gather table pointer 377 * @cpu_addr: HLOS virtual address 378 * @dma_addr: dma/iova 379 * @size: allocated memory size 380 * 381 * Return: physical address 382 */ 383 static inline int 384 __qdf_os_mem_dma_get_sgtable(struct device *dev, void *sgt, void *cpu_addr, 385 qdf_dma_addr_t dma_addr, size_t size) 386 { 387 return dma_get_sgtable(dev, (struct sg_table *)sgt, cpu_addr, dma_addr, 388 size); 389 } 390 391 /** 392 * __qdf_os_mem_free_sgtable() - Free a previously allocated sg table 393 * @sgt: the mapped sg table header 394 * 395 * Return: None 396 */ 397 static inline void 398 __qdf_os_mem_free_sgtable(struct sg_table *sgt) 399 { 400 sg_free_table(sgt); 401 } 402 403 /** 404 * __qdf_dma_get_sgtable_dma_addr()-Assigns DMA address to scatterlist elements 405 * @sgt: scatter gather table pointer 406 * 407 * Return: None 408 */ 409 static inline void 410 __qdf_dma_get_sgtable_dma_addr(struct sg_table *sgt) 411 { 412 struct scatterlist *sg; 413 int i; 414 415 for_each_sg(sgt->sgl, sg, sgt->nents, i) { 416 if (!sg) 417 break; 418 419 sg->dma_address = sg_phys(sg); 420 } 421 } 422 423 /** 424 * __qdf_mem_get_dma_addr() - Return dma addr based on SMMU translation status 425 * @osdev: parent device instance 426 * @mem_info: Pointer to allocated memory information 427 * 428 * Based on smmu stage 1 translation enablement status, return corresponding dma 429 * address from qdf_mem_info_t. If stage 1 translation enabled, return 430 * IO virtual address otherwise return physical address. 431 * 432 * Return: dma address 433 */ 434 static inline qdf_dma_addr_t __qdf_mem_get_dma_addr(qdf_device_t osdev, 435 qdf_mem_info_t *mem_info) 436 { 437 if (__qdf_mem_smmu_s1_enabled(osdev)) 438 return (qdf_dma_addr_t)mem_info->iova; 439 else 440 return (qdf_dma_addr_t)mem_info->pa; 441 } 442 443 /** 444 * __qdf_mem_get_dma_addr_ptr() - Return DMA address storage pointer 445 * @osdev: parent device instance 446 * @mem_info: Pointer to allocated memory information 447 * 448 * Based on smmu stage 1 translation enablement status, return corresponding 449 * dma address pointer from qdf_mem_info_t structure. If stage 1 translation 450 * enabled, return pointer to IO virtual address otherwise return pointer to 451 * physical address 452 * 453 * Return: dma address storage pointer 454 */ 455 static inline qdf_dma_addr_t * 456 __qdf_mem_get_dma_addr_ptr(qdf_device_t osdev, 457 qdf_mem_info_t *mem_info) 458 { 459 if (__qdf_mem_smmu_s1_enabled(osdev)) 460 return (qdf_dma_addr_t *)(&mem_info->iova); 461 else 462 return (qdf_dma_addr_t *)(&mem_info->pa); 463 } 464 465 /** 466 * __qdf_update_mem_map_table() - Update DMA memory map info 467 * @osdev: Parent device instance 468 * @mem_info: Pointer to shared memory information 469 * @dma_addr: dma address 470 * @mem_size: memory size allocated 471 * 472 * Store DMA shared memory information 473 * 474 * Return: none 475 */ 476 static inline void __qdf_update_mem_map_table(qdf_device_t osdev, 477 qdf_mem_info_t *mem_info, 478 qdf_dma_addr_t dma_addr, 479 uint32_t mem_size) 480 { 481 mem_info->pa = __qdf_mem_paddr_from_dmaaddr(osdev, dma_addr); 482 mem_info->iova = dma_addr; 483 mem_info->size = mem_size; 484 } 485 486 /** 487 * __qdf_mem_get_dma_size() - Return DMA memory size 488 * @osdev: parent device instance 489 * @mem_info: Pointer to allocated memory information 490 * 491 * Return: DMA memory size 492 */ 493 static inline uint32_t 494 __qdf_mem_get_dma_size(qdf_device_t osdev, 495 qdf_mem_info_t *mem_info) 496 { 497 return mem_info->size; 498 } 499 500 /** 501 * __qdf_mem_set_dma_size() - Set DMA memory size 502 * @osdev: parent device instance 503 * @mem_info: Pointer to allocated memory information 504 * @mem_size: memory size allocated 505 * 506 * Return: none 507 */ 508 static inline void 509 __qdf_mem_set_dma_size(qdf_device_t osdev, 510 qdf_mem_info_t *mem_info, 511 uint32_t mem_size) 512 { 513 mem_info->size = mem_size; 514 } 515 516 /** 517 * __qdf_mem_get_dma_size() - Return DMA physical address 518 * @osdev: parent device instance 519 * @mem_info: Pointer to allocated memory information 520 * 521 * Return: DMA physical address 522 */ 523 static inline qdf_dma_addr_t 524 __qdf_mem_get_dma_pa(qdf_device_t osdev, 525 qdf_mem_info_t *mem_info) 526 { 527 return mem_info->pa; 528 } 529 530 /** 531 * __qdf_mem_set_dma_size() - Set DMA physical address 532 * @osdev: parent device instance 533 * @mem_info: Pointer to allocated memory information 534 * @dma_pa: DMA phsical address 535 * 536 * Return: none 537 */ 538 static inline void 539 __qdf_mem_set_dma_pa(qdf_device_t osdev, 540 qdf_mem_info_t *mem_info, 541 qdf_dma_addr_t dma_pa) 542 { 543 mem_info->pa = dma_pa; 544 } 545 546 /** 547 * __qdf_mem_alloc_consistent() - allocates consistent qdf memory 548 * @osdev: OS device handle 549 * @dev: Pointer to device handle 550 * @size: Size to be allocated 551 * @paddr: Physical address 552 * @func: Function name of the call site 553 * @line: line numbe rof the call site 554 * 555 * Return: pointer of allocated memory or null if memory alloc fails 556 */ 557 void *__qdf_mem_alloc_consistent(qdf_device_t osdev, void *dev, 558 qdf_size_t size, qdf_dma_addr_t *paddr, 559 const char *func, uint32_t line); 560 561 /** 562 * __qdf_mem_malloc() - allocates QDF memory 563 * @size: Number of bytes of memory to allocate. 564 * 565 * @func: Function name of the call site 566 * @line: line numbe rof the call site 567 * 568 * This function will dynamicallly allocate the specified number of bytes of 569 * memory. 570 * 571 * Return: 572 * Upon successful allocate, returns a non-NULL pointer to the allocated 573 * memory. If this function is unable to allocate the amount of memory 574 * specified (for any reason) it returns NULL. 575 */ 576 void *__qdf_mem_malloc(qdf_size_t size, const char *func, uint32_t line); 577 578 /** 579 * __qdf_mem_free() - free QDF memory 580 * @ptr: Pointer to the starting address of the memory to be freed. 581 * 582 * This function will free the memory pointed to by 'ptr'. 583 * Return: None 584 */ 585 void __qdf_mem_free(void *ptr); 586 587 /** 588 * __qdf_mem_valloc() - QDF virtual memory allocation API 589 * @size: Number of bytes of virtual memory to allocate. 590 * @func: Caller function name 591 * @line: Line number 592 * 593 * Return: A valid memory location on success, or NULL on failure 594 */ 595 void *__qdf_mem_valloc(size_t size, const char *func, uint32_t line); 596 597 /** 598 * __qdf_mem_vfree() - QDF API to free virtual memory 599 * @ptr: Pointer to the virtual memory to free 600 * 601 * Return: None 602 */ 603 void __qdf_mem_vfree(void *ptr); 604 605 #ifdef QCA_WIFI_MODULE_PARAMS_FROM_INI 606 /** 607 * __qdf_untracked_mem_malloc() - allocates non-QDF memory 608 * @size: Number of bytes of memory to allocate. 609 * 610 * @func: Function name of the call site 611 * @line: line number of the call site 612 * 613 * This function will dynamically allocate the specified number of bytes of 614 * memory. Memory allocated is not tracked by qdf memory debug framework. 615 * 616 * Return: 617 * Upon successful allocation, returns a non-NULL pointer to the allocated 618 * memory. If this function is unable to allocate the amount of memory 619 * specified (for any reason) it returns NULL. 620 */ 621 void *__qdf_untracked_mem_malloc(qdf_size_t size, const char *func, 622 uint32_t line); 623 624 /** 625 * __qdf_untracked_mem_free() - free non-QDF memory 626 * @ptr: Pointer to the starting address of the memory to be freed. 627 * 628 * This function will free the memory pointed to by 'ptr'. 629 * Return: None 630 */ 631 632 void __qdf_untracked_mem_free(void *ptr); 633 #endif 634 635 /** 636 * __qdf_mem_free_consistent() - free consistent qdf memory 637 * @osdev: OS device handle 638 * @dev: Pointer to device handle 639 * @size: Size to be allocated 640 * @vaddr: virtual address 641 * @paddr: Physical address 642 * @memctx: Pointer to DMA context 643 * 644 * Return: none 645 */ 646 void __qdf_mem_free_consistent(qdf_device_t osdev, void *dev, 647 qdf_size_t size, void *vaddr, 648 qdf_dma_addr_t paddr, qdf_dma_context_t memctx); 649 650 #endif /* __I_QDF_MEM_H */ 651