Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2008-2017, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | * |
| 12 | */ |
| 13 | #ifndef __KGSL_H |
| 14 | #define __KGSL_H |
| 15 | |
| 16 | #include <linux/types.h> |
| 17 | #include <linux/slab.h> |
| 18 | #include <linux/vmalloc.h> |
| 19 | #include <linux/msm_kgsl.h> |
| 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/clk.h> |
| 22 | #include <linux/interrupt.h> |
| 23 | #include <linux/mutex.h> |
| 24 | #include <linux/cdev.h> |
| 25 | #include <linux/regulator/consumer.h> |
| 26 | #include <linux/mm.h> |
| 27 | #include <linux/uaccess.h> |
Tim Murray | 8504043 | 2017-02-20 15:59:32 +0530 | [diff] [blame^] | 28 | #include <linux/kthread.h> |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 29 | #include <asm/cacheflush.h> |
| 30 | |
| 31 | /* |
| 32 | * --- kgsl drawobj flags --- |
| 33 | * These flags are same as --- drawobj flags --- |
| 34 | * but renamed to reflect that cmdbatch is renamed to drawobj. |
| 35 | */ |
| 36 | #define KGSL_DRAWOBJ_MEMLIST KGSL_CMDBATCH_MEMLIST |
| 37 | #define KGSL_DRAWOBJ_MARKER KGSL_CMDBATCH_MARKER |
| 38 | #define KGSL_DRAWOBJ_SUBMIT_IB_LIST KGSL_CMDBATCH_SUBMIT_IB_LIST |
| 39 | #define KGSL_DRAWOBJ_CTX_SWITCH KGSL_CMDBATCH_CTX_SWITCH |
| 40 | #define KGSL_DRAWOBJ_PROFILING KGSL_CMDBATCH_PROFILING |
| 41 | #define KGSL_DRAWOBJ_PROFILING_KTIME KGSL_CMDBATCH_PROFILING_KTIME |
| 42 | #define KGSL_DRAWOBJ_END_OF_FRAME KGSL_CMDBATCH_END_OF_FRAME |
| 43 | #define KGSL_DRAWOBJ_SYNC KGSL_CMDBATCH_SYNC |
| 44 | #define KGSL_DRAWOBJ_PWR_CONSTRAINT KGSL_CMDBATCH_PWR_CONSTRAINT |
| 45 | #define KGSL_DRAWOBJ_SPARSE KGSL_CMDBATCH_SPARSE |
| 46 | |
| 47 | #define kgsl_drawobj_profiling_buffer kgsl_cmdbatch_profiling_buffer |
| 48 | |
| 49 | |
| 50 | /* The number of memstore arrays limits the number of contexts allowed. |
| 51 | * If more contexts are needed, update multiple for MEMSTORE_SIZE |
| 52 | */ |
| 53 | #define KGSL_MEMSTORE_SIZE ((int)(PAGE_SIZE * 2)) |
| 54 | #define KGSL_MEMSTORE_GLOBAL (0) |
| 55 | #define KGSL_PRIORITY_MAX_RB_LEVELS 4 |
| 56 | #define KGSL_MEMSTORE_MAX (KGSL_MEMSTORE_SIZE / \ |
| 57 | sizeof(struct kgsl_devmemstore) - 1 - KGSL_PRIORITY_MAX_RB_LEVELS) |
| 58 | |
| 59 | #define MEMSTORE_RB_OFFSET(rb, field) \ |
| 60 | KGSL_MEMSTORE_OFFSET(((rb)->id + KGSL_MEMSTORE_MAX), field) |
| 61 | |
| 62 | #define MEMSTORE_ID_GPU_ADDR(dev, iter, field) \ |
| 63 | ((dev)->memstore.gpuaddr + KGSL_MEMSTORE_OFFSET(iter, field)) |
| 64 | |
| 65 | #define MEMSTORE_RB_GPU_ADDR(dev, rb, field) \ |
| 66 | ((dev)->memstore.gpuaddr + \ |
| 67 | KGSL_MEMSTORE_OFFSET(((rb)->id + KGSL_MEMSTORE_MAX), field)) |
| 68 | |
| 69 | /* |
| 70 | * SCRATCH MEMORY: The scratch memory is one page worth of data that |
| 71 | * is mapped into the GPU. This allows for some 'shared' data between |
| 72 | * the GPU and CPU. For example, it will be used by the GPU to write |
| 73 | * each updated RPTR for each RB. |
| 74 | * |
| 75 | * Used Data: |
| 76 | * Offset: Length(bytes): What |
| 77 | * 0x0: 4 * KGSL_PRIORITY_MAX_RB_LEVELS: RB0 RPTR |
| 78 | */ |
| 79 | |
| 80 | /* Shadow global helpers */ |
| 81 | #define SCRATCH_RPTR_OFFSET(id) ((id) * sizeof(unsigned int)) |
| 82 | #define SCRATCH_RPTR_GPU_ADDR(dev, id) \ |
| 83 | ((dev)->scratch.gpuaddr + SCRATCH_RPTR_OFFSET(id)) |
| 84 | |
| 85 | /* Timestamp window used to detect rollovers (half of integer range) */ |
| 86 | #define KGSL_TIMESTAMP_WINDOW 0x80000000 |
| 87 | |
| 88 | /* |
| 89 | * A macro for memory statistics - add the new size to the stat and if |
| 90 | * the statisic is greater then _max, set _max |
| 91 | */ |
| 92 | static inline void KGSL_STATS_ADD(uint64_t size, atomic_long_t *stat, |
| 93 | atomic_long_t *max) |
| 94 | { |
| 95 | uint64_t ret = atomic_long_add_return(size, stat); |
| 96 | |
| 97 | if (ret > atomic_long_read(max)) |
| 98 | atomic_long_set(max, ret); |
| 99 | } |
| 100 | |
| 101 | #define KGSL_MAX_NUMIBS 100000 |
| 102 | #define KGSL_MAX_SYNCPOINTS 32 |
Tarun Karra | 2b8b363 | 2016-11-14 16:38:27 -0800 | [diff] [blame] | 103 | #define KGSL_MAX_SPARSE 1000 |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 104 | |
| 105 | struct kgsl_device; |
| 106 | struct kgsl_context; |
| 107 | |
| 108 | /** |
| 109 | * struct kgsl_driver - main container for global KGSL things |
| 110 | * @cdev: Character device struct |
| 111 | * @major: Major ID for the KGSL device |
| 112 | * @class: Pointer to the class struct for the core KGSL sysfs entries |
| 113 | * @virtdev: Virtual device for managing the core |
| 114 | * @ptkobj: kobject for storing the pagetable statistics |
| 115 | * @prockobj: kobject for storing the process statistics |
| 116 | * @devp: Array of pointers to the individual KGSL device structs |
| 117 | * @process_list: List of open processes |
| 118 | * @pagetable_list: LIst of open pagetables |
| 119 | * @ptlock: Lock for accessing the pagetable list |
| 120 | * @process_mutex: Mutex for accessing the process list |
| 121 | * @devlock: Mutex protecting the device list |
| 122 | * @stats: Struct containing atomic memory statistics |
| 123 | * @full_cache_threshold: the threshold that triggers a full cache flush |
| 124 | * @workqueue: Pointer to a single threaded workqueue |
| 125 | * @mem_workqueue: Pointer to a workqueue for deferring memory entries |
| 126 | */ |
| 127 | struct kgsl_driver { |
| 128 | struct cdev cdev; |
| 129 | dev_t major; |
| 130 | struct class *class; |
| 131 | struct device virtdev; |
| 132 | struct kobject *ptkobj; |
| 133 | struct kobject *prockobj; |
| 134 | struct kgsl_device *devp[KGSL_DEVICE_MAX]; |
| 135 | struct list_head process_list; |
| 136 | struct list_head pagetable_list; |
| 137 | spinlock_t ptlock; |
| 138 | struct mutex process_mutex; |
| 139 | struct mutex devlock; |
| 140 | struct { |
| 141 | atomic_long_t vmalloc; |
| 142 | atomic_long_t vmalloc_max; |
| 143 | atomic_long_t page_alloc; |
| 144 | atomic_long_t page_alloc_max; |
| 145 | atomic_long_t coherent; |
| 146 | atomic_long_t coherent_max; |
| 147 | atomic_long_t secure; |
| 148 | atomic_long_t secure_max; |
| 149 | atomic_long_t mapped; |
| 150 | atomic_long_t mapped_max; |
| 151 | } stats; |
| 152 | unsigned int full_cache_threshold; |
| 153 | struct workqueue_struct *workqueue; |
| 154 | struct workqueue_struct *mem_workqueue; |
Tim Murray | 8504043 | 2017-02-20 15:59:32 +0530 | [diff] [blame^] | 155 | struct kthread_worker worker; |
| 156 | struct task_struct *worker_thread; |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 157 | }; |
| 158 | |
| 159 | extern struct kgsl_driver kgsl_driver; |
| 160 | extern struct mutex kgsl_mmu_sync; |
| 161 | |
| 162 | struct kgsl_pagetable; |
| 163 | struct kgsl_memdesc; |
| 164 | |
| 165 | struct kgsl_memdesc_ops { |
| 166 | unsigned int vmflags; |
| 167 | int (*vmfault)(struct kgsl_memdesc *, struct vm_area_struct *, |
| 168 | struct vm_fault *); |
| 169 | void (*free)(struct kgsl_memdesc *memdesc); |
| 170 | int (*map_kernel)(struct kgsl_memdesc *); |
| 171 | void (*unmap_kernel)(struct kgsl_memdesc *); |
| 172 | }; |
| 173 | |
| 174 | /* Internal definitions for memdesc->priv */ |
| 175 | #define KGSL_MEMDESC_GUARD_PAGE BIT(0) |
| 176 | /* Set if the memdesc is mapped into all pagetables */ |
| 177 | #define KGSL_MEMDESC_GLOBAL BIT(1) |
| 178 | /* The memdesc is frozen during a snapshot */ |
| 179 | #define KGSL_MEMDESC_FROZEN BIT(2) |
| 180 | /* The memdesc is mapped into a pagetable */ |
| 181 | #define KGSL_MEMDESC_MAPPED BIT(3) |
| 182 | /* The memdesc is secured for content protection */ |
| 183 | #define KGSL_MEMDESC_SECURE BIT(4) |
| 184 | /* Memory is accessible in privileged mode */ |
| 185 | #define KGSL_MEMDESC_PRIVILEGED BIT(6) |
| 186 | /* The memdesc is TZ locked content protection */ |
| 187 | #define KGSL_MEMDESC_TZ_LOCKED BIT(7) |
| 188 | /* The memdesc is allocated through contiguous memory */ |
| 189 | #define KGSL_MEMDESC_CONTIG BIT(8) |
| 190 | |
| 191 | /** |
| 192 | * struct kgsl_memdesc - GPU memory object descriptor |
| 193 | * @pagetable: Pointer to the pagetable that the object is mapped in |
| 194 | * @hostptr: Kernel virtual address |
| 195 | * @hostptr_count: Number of threads using hostptr |
| 196 | * @useraddr: User virtual address (if applicable) |
| 197 | * @gpuaddr: GPU virtual address |
| 198 | * @physaddr: Physical address of the memory object |
| 199 | * @size: Size of the memory object |
| 200 | * @mapsize: Size of memory mapped in userspace |
| 201 | * @priv: Internal flags and settings |
| 202 | * @sgt: Scatter gather table for allocated pages |
| 203 | * @ops: Function hooks for the memdesc memory type |
| 204 | * @flags: Flags set from userspace |
| 205 | * @dev: Pointer to the struct device that owns this memory |
| 206 | * @attrs: dma attributes for this memory |
| 207 | * @pages: An array of pointers to allocated pages |
| 208 | * @page_count: Total number of pages allocated |
| 209 | * @cur_bindings: Number of sparse pages actively bound |
| 210 | */ |
| 211 | struct kgsl_memdesc { |
| 212 | struct kgsl_pagetable *pagetable; |
| 213 | void *hostptr; |
| 214 | unsigned int hostptr_count; |
| 215 | unsigned long useraddr; |
| 216 | uint64_t gpuaddr; |
| 217 | phys_addr_t physaddr; |
| 218 | uint64_t size; |
| 219 | uint64_t mapsize; |
| 220 | unsigned int priv; |
| 221 | struct sg_table *sgt; |
| 222 | struct kgsl_memdesc_ops *ops; |
| 223 | uint64_t flags; |
| 224 | struct device *dev; |
| 225 | unsigned long attrs; |
| 226 | struct page **pages; |
| 227 | unsigned int page_count; |
| 228 | unsigned int cur_bindings; |
| 229 | }; |
| 230 | |
| 231 | /* |
| 232 | * List of different memory entry types. The usermem enum |
| 233 | * starts at 0, which we use for allocated memory, so 1 is |
| 234 | * added to the enum values. |
| 235 | */ |
| 236 | #define KGSL_MEM_ENTRY_KERNEL 0 |
| 237 | #define KGSL_MEM_ENTRY_USER (KGSL_USER_MEM_TYPE_ADDR + 1) |
| 238 | #define KGSL_MEM_ENTRY_ION (KGSL_USER_MEM_TYPE_ION + 1) |
| 239 | #define KGSL_MEM_ENTRY_MAX (KGSL_USER_MEM_TYPE_MAX + 1) |
| 240 | |
| 241 | /* symbolic table for trace and debugfs */ |
| 242 | #define KGSL_MEM_TYPES \ |
| 243 | { KGSL_MEM_ENTRY_KERNEL, "gpumem" }, \ |
| 244 | { KGSL_MEM_ENTRY_USER, "usermem" }, \ |
| 245 | { KGSL_MEM_ENTRY_ION, "ion" } |
| 246 | |
| 247 | /* |
| 248 | * struct kgsl_mem_entry - a userspace memory allocation |
| 249 | * @refcount: reference count. Currently userspace can only |
| 250 | * hold a single reference count, but the kernel may hold more. |
| 251 | * @memdesc: description of the memory |
| 252 | * @priv_data: type-specific data, such as the dma-buf attachment pointer. |
| 253 | * @node: rb_node for the gpu address lookup rb tree |
| 254 | * @id: idr index for this entry, can be used to find memory that does not have |
| 255 | * a valid GPU address. |
| 256 | * @priv: back pointer to the process that owns this memory |
| 257 | * @pending_free: if !0, userspace requested that his memory be freed, but there |
| 258 | * are still references to it. |
| 259 | * @dev_priv: back pointer to the device file that created this entry. |
| 260 | * @metadata: String containing user specified metadata for the entry |
| 261 | * @work: Work struct used to schedule a kgsl_mem_entry_put in atomic contexts |
| 262 | * @bind_lock: Lock for sparse memory bindings |
| 263 | * @bind_tree: RB Tree for sparse memory bindings |
| 264 | */ |
| 265 | struct kgsl_mem_entry { |
| 266 | struct kref refcount; |
| 267 | struct kgsl_memdesc memdesc; |
| 268 | void *priv_data; |
| 269 | struct rb_node node; |
| 270 | unsigned int id; |
| 271 | struct kgsl_process_private *priv; |
| 272 | int pending_free; |
| 273 | char metadata[KGSL_GPUOBJ_ALLOC_METADATA_MAX + 1]; |
| 274 | struct work_struct work; |
| 275 | spinlock_t bind_lock; |
| 276 | struct rb_root bind_tree; |
| 277 | }; |
| 278 | |
| 279 | struct kgsl_device_private; |
| 280 | struct kgsl_event_group; |
| 281 | |
| 282 | typedef void (*kgsl_event_func)(struct kgsl_device *, struct kgsl_event_group *, |
| 283 | void *, int); |
| 284 | |
| 285 | /** |
| 286 | * struct kgsl_event - KGSL GPU timestamp event |
| 287 | * @device: Pointer to the KGSL device that owns the event |
| 288 | * @context: Pointer to the context that owns the event |
| 289 | * @timestamp: Timestamp for the event to expire |
| 290 | * @func: Callback function for for the event when it expires |
| 291 | * @priv: Private data passed to the callback function |
| 292 | * @node: List node for the kgsl_event_group list |
| 293 | * @created: Jiffies when the event was created |
| 294 | * @work: Work struct for dispatching the callback |
| 295 | * @result: KGSL event result type to pass to the callback |
| 296 | * group: The event group this event belongs to |
| 297 | */ |
| 298 | struct kgsl_event { |
| 299 | struct kgsl_device *device; |
| 300 | struct kgsl_context *context; |
| 301 | unsigned int timestamp; |
| 302 | kgsl_event_func func; |
| 303 | void *priv; |
| 304 | struct list_head node; |
| 305 | unsigned int created; |
Tim Murray | 8504043 | 2017-02-20 15:59:32 +0530 | [diff] [blame^] | 306 | struct kthread_work work; |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 307 | int result; |
| 308 | struct kgsl_event_group *group; |
| 309 | }; |
| 310 | |
| 311 | typedef int (*readtimestamp_func)(struct kgsl_device *, void *, |
| 312 | enum kgsl_timestamp_type, unsigned int *); |
| 313 | |
| 314 | /** |
| 315 | * struct event_group - A list of GPU events |
| 316 | * @context: Pointer to the active context for the events |
| 317 | * @lock: Spinlock for protecting the list |
| 318 | * @events: List of active GPU events |
| 319 | * @group: Node for the master group list |
| 320 | * @processed: Last processed timestamp |
| 321 | * @name: String name for the group (for the debugfs file) |
| 322 | * @readtimestamp: Function pointer to read a timestamp |
| 323 | * @priv: Priv member to pass to the readtimestamp function |
| 324 | */ |
| 325 | struct kgsl_event_group { |
| 326 | struct kgsl_context *context; |
| 327 | spinlock_t lock; |
| 328 | struct list_head events; |
| 329 | struct list_head group; |
| 330 | unsigned int processed; |
| 331 | char name[64]; |
| 332 | readtimestamp_func readtimestamp; |
| 333 | void *priv; |
| 334 | }; |
| 335 | |
| 336 | /** |
| 337 | * struct kgsl_protected_registers - Protected register range |
| 338 | * @base: Offset of the range to be protected |
| 339 | * @range: Range (# of registers = 2 ** range) |
| 340 | */ |
| 341 | struct kgsl_protected_registers { |
| 342 | unsigned int base; |
| 343 | int range; |
| 344 | }; |
| 345 | |
| 346 | /** |
| 347 | * struct sparse_bind_object - Bind metadata |
| 348 | * @node: Node for the rb tree |
| 349 | * @p_memdesc: Physical memdesc bound to |
| 350 | * @v_off: Offset of bind in the virtual entry |
| 351 | * @p_off: Offset of bind in the physical memdesc |
| 352 | * @size: Size of the bind |
| 353 | * @flags: Flags for the bind |
| 354 | */ |
| 355 | struct sparse_bind_object { |
| 356 | struct rb_node node; |
| 357 | struct kgsl_memdesc *p_memdesc; |
| 358 | uint64_t v_off; |
| 359 | uint64_t p_off; |
| 360 | uint64_t size; |
| 361 | uint64_t flags; |
| 362 | }; |
| 363 | |
| 364 | long kgsl_ioctl_device_getproperty(struct kgsl_device_private *dev_priv, |
| 365 | unsigned int cmd, void *data); |
| 366 | long kgsl_ioctl_device_setproperty(struct kgsl_device_private *dev_priv, |
| 367 | unsigned int cmd, void *data); |
| 368 | long kgsl_ioctl_device_waittimestamp_ctxtid(struct kgsl_device_private |
| 369 | *dev_priv, unsigned int cmd, void *data); |
| 370 | long kgsl_ioctl_rb_issueibcmds(struct kgsl_device_private *dev_priv, |
| 371 | unsigned int cmd, void *data); |
| 372 | long kgsl_ioctl_submit_commands(struct kgsl_device_private *dev_priv, |
| 373 | unsigned int cmd, void *data); |
| 374 | long kgsl_ioctl_cmdstream_readtimestamp_ctxtid(struct kgsl_device_private |
| 375 | *dev_priv, unsigned int cmd, |
| 376 | void *data); |
| 377 | long kgsl_ioctl_cmdstream_freememontimestamp_ctxtid( |
| 378 | struct kgsl_device_private |
| 379 | *dev_priv, unsigned int cmd, |
| 380 | void *data); |
| 381 | long kgsl_ioctl_drawctxt_create(struct kgsl_device_private *dev_priv, |
| 382 | unsigned int cmd, void *data); |
| 383 | long kgsl_ioctl_drawctxt_destroy(struct kgsl_device_private *dev_priv, |
| 384 | unsigned int cmd, void *data); |
| 385 | long kgsl_ioctl_sharedmem_free(struct kgsl_device_private *dev_priv, |
| 386 | unsigned int cmd, void *data); |
| 387 | long kgsl_ioctl_gpumem_free_id(struct kgsl_device_private *dev_priv, |
| 388 | unsigned int cmd, void *data); |
| 389 | long kgsl_ioctl_map_user_mem(struct kgsl_device_private *dev_priv, |
| 390 | unsigned int cmd, void *data); |
| 391 | long kgsl_ioctl_gpumem_sync_cache(struct kgsl_device_private *dev_priv, |
| 392 | unsigned int cmd, void *data); |
| 393 | long kgsl_ioctl_gpumem_sync_cache_bulk(struct kgsl_device_private *dev_priv, |
| 394 | unsigned int cmd, void *data); |
| 395 | long kgsl_ioctl_sharedmem_flush_cache(struct kgsl_device_private *dev_priv, |
| 396 | unsigned int cmd, void *data); |
| 397 | long kgsl_ioctl_gpumem_alloc(struct kgsl_device_private *dev_priv, |
| 398 | unsigned int cmd, void *data); |
| 399 | long kgsl_ioctl_gpumem_alloc_id(struct kgsl_device_private *dev_priv, |
| 400 | unsigned int cmd, void *data); |
| 401 | long kgsl_ioctl_gpumem_get_info(struct kgsl_device_private *dev_priv, |
| 402 | unsigned int cmd, void *data); |
| 403 | long kgsl_ioctl_timestamp_event(struct kgsl_device_private *dev_priv, |
| 404 | unsigned int cmd, void *data); |
| 405 | long kgsl_ioctl_gpuobj_alloc(struct kgsl_device_private *dev_priv, |
| 406 | unsigned int cmd, void *data); |
| 407 | long kgsl_ioctl_gpuobj_free(struct kgsl_device_private *dev_priv, |
| 408 | unsigned int cmd, void *data); |
| 409 | long kgsl_ioctl_gpuobj_info(struct kgsl_device_private *dev_priv, |
| 410 | unsigned int cmd, void *data); |
| 411 | long kgsl_ioctl_gpuobj_import(struct kgsl_device_private *dev_priv, |
| 412 | unsigned int cmd, void *data); |
| 413 | long kgsl_ioctl_gpuobj_sync(struct kgsl_device_private *dev_priv, |
| 414 | unsigned int cmd, void *data); |
| 415 | long kgsl_ioctl_gpu_command(struct kgsl_device_private *dev_priv, |
| 416 | unsigned int cmd, void *data); |
| 417 | long kgsl_ioctl_gpuobj_set_info(struct kgsl_device_private *dev_priv, |
| 418 | unsigned int cmd, void *data); |
| 419 | |
| 420 | long kgsl_ioctl_sparse_phys_alloc(struct kgsl_device_private *dev_priv, |
| 421 | unsigned int cmd, void *data); |
| 422 | long kgsl_ioctl_sparse_phys_free(struct kgsl_device_private *dev_priv, |
| 423 | unsigned int cmd, void *data); |
| 424 | long kgsl_ioctl_sparse_virt_alloc(struct kgsl_device_private *dev_priv, |
| 425 | unsigned int cmd, void *data); |
| 426 | long kgsl_ioctl_sparse_virt_free(struct kgsl_device_private *dev_priv, |
| 427 | unsigned int cmd, void *data); |
| 428 | long kgsl_ioctl_sparse_bind(struct kgsl_device_private *dev_priv, |
| 429 | unsigned int cmd, void *data); |
| 430 | long kgsl_ioctl_sparse_unbind(struct kgsl_device_private *dev_priv, |
| 431 | unsigned int cmd, void *data); |
Tarun Karra | 2b8b363 | 2016-11-14 16:38:27 -0800 | [diff] [blame] | 432 | long kgsl_ioctl_gpu_sparse_command(struct kgsl_device_private *dev_priv, |
| 433 | unsigned int cmd, void *data); |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 434 | |
| 435 | void kgsl_mem_entry_destroy(struct kref *kref); |
| 436 | |
| 437 | void kgsl_get_egl_counts(struct kgsl_mem_entry *entry, |
| 438 | int *egl_surface_count, int *egl_image_count); |
| 439 | |
| 440 | struct kgsl_mem_entry * __must_check |
| 441 | kgsl_sharedmem_find(struct kgsl_process_private *private, uint64_t gpuaddr); |
| 442 | |
| 443 | struct kgsl_mem_entry * __must_check |
| 444 | kgsl_sharedmem_find_id(struct kgsl_process_private *process, unsigned int id); |
| 445 | |
| 446 | extern const struct dev_pm_ops kgsl_pm_ops; |
| 447 | |
| 448 | int kgsl_suspend_driver(struct platform_device *pdev, pm_message_t state); |
| 449 | int kgsl_resume_driver(struct platform_device *pdev); |
| 450 | |
Harshdeep Dhatt | 2e42f12 | 2017-05-31 17:27:19 -0600 | [diff] [blame] | 451 | struct kgsl_mem_entry *gpumem_alloc_entry(struct kgsl_device_private *dev_priv, |
| 452 | uint64_t size, uint64_t flags); |
| 453 | long gpumem_free_entry(struct kgsl_mem_entry *entry); |
| 454 | |
Shrenuj Bansal | a419c79 | 2016-10-20 14:05:11 -0700 | [diff] [blame] | 455 | static inline int kgsl_gpuaddr_in_memdesc(const struct kgsl_memdesc *memdesc, |
| 456 | uint64_t gpuaddr, uint64_t size) |
| 457 | { |
| 458 | /* set a minimum size to search for */ |
| 459 | if (!size) |
| 460 | size = 1; |
| 461 | |
| 462 | /* don't overflow */ |
| 463 | if (size > U64_MAX - gpuaddr) |
| 464 | return 0; |
| 465 | |
| 466 | if (gpuaddr >= memdesc->gpuaddr && |
| 467 | ((gpuaddr + size) <= (memdesc->gpuaddr + memdesc->size))) { |
| 468 | return 1; |
| 469 | } |
| 470 | return 0; |
| 471 | } |
| 472 | |
| 473 | static inline void *kgsl_memdesc_map(struct kgsl_memdesc *memdesc) |
| 474 | { |
| 475 | if (memdesc->ops && memdesc->ops->map_kernel) |
| 476 | memdesc->ops->map_kernel(memdesc); |
| 477 | |
| 478 | return memdesc->hostptr; |
| 479 | } |
| 480 | |
| 481 | static inline void kgsl_memdesc_unmap(struct kgsl_memdesc *memdesc) |
| 482 | { |
| 483 | if (memdesc->ops && memdesc->ops->unmap_kernel) |
| 484 | memdesc->ops->unmap_kernel(memdesc); |
| 485 | } |
| 486 | |
| 487 | static inline void *kgsl_gpuaddr_to_vaddr(struct kgsl_memdesc *memdesc, |
| 488 | uint64_t gpuaddr) |
| 489 | { |
| 490 | void *hostptr = NULL; |
| 491 | |
| 492 | if ((gpuaddr >= memdesc->gpuaddr) && |
| 493 | (gpuaddr < (memdesc->gpuaddr + memdesc->size))) |
| 494 | hostptr = kgsl_memdesc_map(memdesc); |
| 495 | |
| 496 | return hostptr != NULL ? hostptr + (gpuaddr - memdesc->gpuaddr) : NULL; |
| 497 | } |
| 498 | |
| 499 | static inline int timestamp_cmp(unsigned int a, unsigned int b) |
| 500 | { |
| 501 | /* check for equal */ |
| 502 | if (a == b) |
| 503 | return 0; |
| 504 | |
| 505 | /* check for greater-than for non-rollover case */ |
| 506 | if ((a > b) && (a - b < KGSL_TIMESTAMP_WINDOW)) |
| 507 | return 1; |
| 508 | |
| 509 | /* check for greater-than for rollover case |
| 510 | * note that <= is required to ensure that consistent |
| 511 | * results are returned for values whose difference is |
| 512 | * equal to the window size |
| 513 | */ |
| 514 | a += KGSL_TIMESTAMP_WINDOW; |
| 515 | b += KGSL_TIMESTAMP_WINDOW; |
| 516 | return ((a > b) && (a - b <= KGSL_TIMESTAMP_WINDOW)) ? 1 : -1; |
| 517 | } |
| 518 | |
| 519 | /** |
| 520 | * kgsl_schedule_work() - Schedule a work item on the KGSL workqueue |
| 521 | * @work: work item to schedule |
| 522 | */ |
| 523 | static inline void kgsl_schedule_work(struct work_struct *work) |
| 524 | { |
| 525 | queue_work(kgsl_driver.workqueue, work); |
| 526 | } |
| 527 | |
| 528 | static inline int |
| 529 | kgsl_mem_entry_get(struct kgsl_mem_entry *entry) |
| 530 | { |
| 531 | if (entry) |
| 532 | return kref_get_unless_zero(&entry->refcount); |
| 533 | return 0; |
| 534 | } |
| 535 | |
| 536 | static inline void |
| 537 | kgsl_mem_entry_put(struct kgsl_mem_entry *entry) |
| 538 | { |
| 539 | if (entry) |
| 540 | kref_put(&entry->refcount, kgsl_mem_entry_destroy); |
| 541 | } |
| 542 | |
| 543 | /* |
| 544 | * kgsl_addr_range_overlap() - Checks if 2 ranges overlap |
| 545 | * @gpuaddr1: Start of first address range |
| 546 | * @size1: Size of first address range |
| 547 | * @gpuaddr2: Start of second address range |
| 548 | * @size2: Size of second address range |
| 549 | * |
| 550 | * Function returns true if the 2 given address ranges overlap |
| 551 | * else false |
| 552 | */ |
| 553 | static inline bool kgsl_addr_range_overlap(uint64_t gpuaddr1, |
| 554 | uint64_t size1, uint64_t gpuaddr2, uint64_t size2) |
| 555 | { |
| 556 | if ((size1 > (U64_MAX - gpuaddr1)) || (size2 > (U64_MAX - gpuaddr2))) |
| 557 | return false; |
| 558 | return !(((gpuaddr1 + size1) <= gpuaddr2) || |
| 559 | (gpuaddr1 >= (gpuaddr2 + size2))); |
| 560 | } |
| 561 | |
| 562 | /** |
| 563 | * kgsl_malloc() - Use either kzalloc or vmalloc to allocate memory |
| 564 | * @size: Size of the desired allocation |
| 565 | * |
| 566 | * Allocate a block of memory for the driver - if it is small try to allocate it |
| 567 | * from kmalloc (fast!) otherwise we need to go with vmalloc (safe!) |
| 568 | */ |
| 569 | static inline void *kgsl_malloc(size_t size) |
| 570 | { |
| 571 | if (size <= PAGE_SIZE) |
| 572 | return kzalloc(size, GFP_KERNEL); |
| 573 | |
| 574 | return vmalloc(size); |
| 575 | } |
| 576 | |
| 577 | /** |
| 578 | * kgsl_free() - Free memory allocated by kgsl_malloc() |
| 579 | * @ptr: Pointer to the memory to free |
| 580 | * |
| 581 | * Free the memory be it in vmalloc or kmalloc space |
| 582 | */ |
| 583 | static inline void kgsl_free(void *ptr) |
| 584 | { |
| 585 | if (ptr != NULL && is_vmalloc_addr(ptr)) |
| 586 | return vfree(ptr); |
| 587 | |
| 588 | kfree(ptr); |
| 589 | } |
| 590 | |
| 591 | static inline int _copy_from_user(void *dest, void __user *src, |
| 592 | unsigned int ksize, unsigned int usize) |
| 593 | { |
| 594 | unsigned int copy = ksize < usize ? ksize : usize; |
| 595 | |
| 596 | if (copy == 0) |
| 597 | return -EINVAL; |
| 598 | |
| 599 | return copy_from_user(dest, src, copy) ? -EFAULT : 0; |
| 600 | } |
| 601 | |
| 602 | static inline void __user *to_user_ptr(uint64_t address) |
| 603 | { |
| 604 | return (void __user *)(uintptr_t)address; |
| 605 | } |
| 606 | |
| 607 | static inline void kgsl_gpu_sysfs_add_link(struct kobject *dst, |
| 608 | struct kobject *src, const char *src_name, |
| 609 | const char *dst_name) |
| 610 | { |
| 611 | struct kernfs_node *old; |
| 612 | |
| 613 | if (dst == NULL || src == NULL) |
| 614 | return; |
| 615 | |
| 616 | old = sysfs_get_dirent(src->sd, src_name); |
| 617 | if (IS_ERR_OR_NULL(old)) |
| 618 | return; |
| 619 | |
| 620 | kernfs_create_link(dst->sd, dst_name, old); |
| 621 | } |
| 622 | #endif /* __KGSL_H */ |