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| 1 | +/* SPDX-License-Identifier: MIT */ |
| 2 | +/* Copyright (C) 2023 Collabora ltd. */ |
| 3 | +#ifndef _PANTHOR_DRM_H_ |
| 4 | +#define _PANTHOR_DRM_H_ |
| 5 | + |
| 6 | +#include "drm.h" |
| 7 | + |
| 8 | +#if defined(__cplusplus) |
| 9 | +extern "C" { |
| 10 | +#endif |
| 11 | + |
| 12 | +/** |
| 13 | + * DOC: Introduction |
| 14 | + * |
| 15 | + * This documentation describes the Panthor IOCTLs. |
| 16 | + * |
| 17 | + * Just a few generic rules about the data passed to the Panthor IOCTLs: |
| 18 | + * |
| 19 | + * - Structures must be aligned on 64-bit/8-byte. If the object is not |
| 20 | + * naturally aligned, a padding field must be added. |
| 21 | + * - Fields must be explicitly aligned to their natural type alignment with |
| 22 | + * pad[0..N] fields. |
| 23 | + * - All padding fields will be checked by the driver to make sure they are |
| 24 | + * zeroed. |
| 25 | + * - Flags can be added, but not removed/replaced. |
| 26 | + * - New fields can be added to the main structures (the structures |
| 27 | + * directly passed to the ioctl). Those fields can be added at the end of |
| 28 | + * the structure, or replace existing padding fields. Any new field being |
| 29 | + * added must preserve the behavior that existed before those fields were |
| 30 | + * added when a value of zero is passed. |
| 31 | + * - New fields can be added to indirect objects (objects pointed by the |
| 32 | + * main structure), iff those objects are passed a size to reflect the |
| 33 | + * size known by the userspace driver (see drm_panthor_obj_array::stride |
| 34 | + * or drm_panthor_dev_query::size). |
| 35 | + * - If the kernel driver is too old to know some fields, those will be |
| 36 | + * ignored if zero, and otherwise rejected (and so will be zero on output). |
| 37 | + * - If userspace is too old to know some fields, those will be zeroed |
| 38 | + * (input) before the structure is parsed by the kernel driver. |
| 39 | + * - Each new flag/field addition must come with a driver version update so |
| 40 | + * the userspace driver doesn't have to trial and error to know which |
| 41 | + * flags are supported. |
| 42 | + * - Structures should not contain unions, as this would defeat the |
| 43 | + * extensibility of such structures. |
| 44 | + * - IOCTLs can't be removed or replaced. New IOCTL IDs should be placed |
| 45 | + * at the end of the drm_panthor_ioctl_id enum. |
| 46 | + */ |
| 47 | + |
| 48 | +/** |
| 49 | + * DOC: MMIO regions exposed to userspace. |
| 50 | + * |
| 51 | + * .. c:macro:: DRM_PANTHOR_USER_MMIO_OFFSET |
| 52 | + * |
| 53 | + * File offset for all MMIO regions being exposed to userspace. Don't use |
| 54 | + * this value directly, use DRM_PANTHOR_USER_<name>_OFFSET values instead. |
| 55 | + * pgoffset passed to mmap2() is an unsigned long, which forces us to use a |
| 56 | + * different offset on 32-bit and 64-bit systems. |
| 57 | + * |
| 58 | + * .. c:macro:: DRM_PANTHOR_USER_FLUSH_ID_MMIO_OFFSET |
| 59 | + * |
| 60 | + * File offset for the LATEST_FLUSH_ID register. The Userspace driver controls |
| 61 | + * GPU cache flushing through CS instructions, but the flush reduction |
| 62 | + * mechanism requires a flush_id. This flush_id could be queried with an |
| 63 | + * ioctl, but Arm provides a well-isolated register page containing only this |
| 64 | + * read-only register, so let's expose this page through a static mmap offset |
| 65 | + * and allow direct mapping of this MMIO region so we can avoid the |
| 66 | + * user <-> kernel round-trip. |
| 67 | + */ |
| 68 | +#define DRM_PANTHOR_USER_MMIO_OFFSET_32BIT (1ull << 43) |
| 69 | +#define DRM_PANTHOR_USER_MMIO_OFFSET_64BIT (1ull << 56) |
| 70 | +#define DRM_PANTHOR_USER_MMIO_OFFSET (sizeof(unsigned long) < 8 ? \ |
| 71 | + DRM_PANTHOR_USER_MMIO_OFFSET_32BIT : \ |
| 72 | + DRM_PANTHOR_USER_MMIO_OFFSET_64BIT) |
| 73 | +#define DRM_PANTHOR_USER_FLUSH_ID_MMIO_OFFSET (DRM_PANTHOR_USER_MMIO_OFFSET | 0) |
| 74 | + |
| 75 | +/** |
| 76 | + * DOC: IOCTL IDs |
| 77 | + * |
| 78 | + * enum drm_panthor_ioctl_id - IOCTL IDs |
| 79 | + * |
| 80 | + * Place new ioctls at the end, don't re-order, don't replace or remove entries. |
| 81 | + * |
| 82 | + * These IDs are not meant to be used directly. Use the DRM_IOCTL_PANTHOR_xxx |
| 83 | + * definitions instead. |
| 84 | + */ |
| 85 | +enum drm_panthor_ioctl_id { |
| 86 | + /** @DRM_PANTHOR_DEV_QUERY: Query device information. */ |
| 87 | + DRM_PANTHOR_DEV_QUERY = 0, |
| 88 | + |
| 89 | + /** @DRM_PANTHOR_VM_CREATE: Create a VM. */ |
| 90 | + DRM_PANTHOR_VM_CREATE, |
| 91 | + |
| 92 | + /** @DRM_PANTHOR_VM_DESTROY: Destroy a VM. */ |
| 93 | + DRM_PANTHOR_VM_DESTROY, |
| 94 | + |
| 95 | + /** @DRM_PANTHOR_VM_BIND: Bind/unbind memory to a VM. */ |
| 96 | + DRM_PANTHOR_VM_BIND, |
| 97 | + |
| 98 | + /** @DRM_PANTHOR_VM_GET_STATE: Get VM state. */ |
| 99 | + DRM_PANTHOR_VM_GET_STATE, |
| 100 | + |
| 101 | + /** @DRM_PANTHOR_BO_CREATE: Create a buffer object. */ |
| 102 | + DRM_PANTHOR_BO_CREATE, |
| 103 | + |
| 104 | + /** |
| 105 | + * @DRM_PANTHOR_BO_MMAP_OFFSET: Get the file offset to pass to |
| 106 | + * mmap to map a GEM object. |
| 107 | + */ |
| 108 | + DRM_PANTHOR_BO_MMAP_OFFSET, |
| 109 | + |
| 110 | + /** @DRM_PANTHOR_GROUP_CREATE: Create a scheduling group. */ |
| 111 | + DRM_PANTHOR_GROUP_CREATE, |
| 112 | + |
| 113 | + /** @DRM_PANTHOR_GROUP_DESTROY: Destroy a scheduling group. */ |
| 114 | + DRM_PANTHOR_GROUP_DESTROY, |
| 115 | + |
| 116 | + /** |
| 117 | + * @DRM_PANTHOR_GROUP_SUBMIT: Submit jobs to queues belonging |
| 118 | + * to a specific scheduling group. |
| 119 | + */ |
| 120 | + DRM_PANTHOR_GROUP_SUBMIT, |
| 121 | + |
| 122 | + /** @DRM_PANTHOR_GROUP_GET_STATE: Get the state of a scheduling group. */ |
| 123 | + DRM_PANTHOR_GROUP_GET_STATE, |
| 124 | + |
| 125 | + /** @DRM_PANTHOR_TILER_HEAP_CREATE: Create a tiler heap. */ |
| 126 | + DRM_PANTHOR_TILER_HEAP_CREATE, |
| 127 | + |
| 128 | + /** @DRM_PANTHOR_TILER_HEAP_DESTROY: Destroy a tiler heap. */ |
| 129 | + DRM_PANTHOR_TILER_HEAP_DESTROY, |
| 130 | +}; |
| 131 | + |
| 132 | +/** |
| 133 | + * DRM_IOCTL_PANTHOR() - Build a Panthor IOCTL number |
| 134 | + * @__access: Access type. Must be R, W or RW. |
| 135 | + * @__id: One of the DRM_PANTHOR_xxx id. |
| 136 | + * @__type: Suffix of the type being passed to the IOCTL. |
| 137 | + * |
| 138 | + * Don't use this macro directly, use the DRM_IOCTL_PANTHOR_xxx |
| 139 | + * values instead. |
| 140 | + * |
| 141 | + * Return: An IOCTL number to be passed to ioctl() from userspace. |
| 142 | + */ |
| 143 | +#define DRM_IOCTL_PANTHOR(__access, __id, __type) \ |
| 144 | + DRM_IO ## __access(DRM_COMMAND_BASE + DRM_PANTHOR_ ## __id, \ |
| 145 | + struct drm_panthor_ ## __type) |
| 146 | + |
| 147 | +#define DRM_IOCTL_PANTHOR_DEV_QUERY \ |
| 148 | + DRM_IOCTL_PANTHOR(WR, DEV_QUERY, dev_query) |
| 149 | +#define DRM_IOCTL_PANTHOR_VM_CREATE \ |
| 150 | + DRM_IOCTL_PANTHOR(WR, VM_CREATE, vm_create) |
| 151 | +#define DRM_IOCTL_PANTHOR_VM_DESTROY \ |
| 152 | + DRM_IOCTL_PANTHOR(WR, VM_DESTROY, vm_destroy) |
| 153 | +#define DRM_IOCTL_PANTHOR_VM_BIND \ |
| 154 | + DRM_IOCTL_PANTHOR(WR, VM_BIND, vm_bind) |
| 155 | +#define DRM_IOCTL_PANTHOR_VM_GET_STATE \ |
| 156 | + DRM_IOCTL_PANTHOR(WR, VM_GET_STATE, vm_get_state) |
| 157 | +#define DRM_IOCTL_PANTHOR_BO_CREATE \ |
| 158 | + DRM_IOCTL_PANTHOR(WR, BO_CREATE, bo_create) |
| 159 | +#define DRM_IOCTL_PANTHOR_BO_MMAP_OFFSET \ |
| 160 | + DRM_IOCTL_PANTHOR(WR, BO_MMAP_OFFSET, bo_mmap_offset) |
| 161 | +#define DRM_IOCTL_PANTHOR_GROUP_CREATE \ |
| 162 | + DRM_IOCTL_PANTHOR(WR, GROUP_CREATE, group_create) |
| 163 | +#define DRM_IOCTL_PANTHOR_GROUP_DESTROY \ |
| 164 | + DRM_IOCTL_PANTHOR(WR, GROUP_DESTROY, group_destroy) |
| 165 | +#define DRM_IOCTL_PANTHOR_GROUP_SUBMIT \ |
| 166 | + DRM_IOCTL_PANTHOR(WR, GROUP_SUBMIT, group_submit) |
| 167 | +#define DRM_IOCTL_PANTHOR_GROUP_GET_STATE \ |
| 168 | + DRM_IOCTL_PANTHOR(WR, GROUP_GET_STATE, group_get_state) |
| 169 | +#define DRM_IOCTL_PANTHOR_TILER_HEAP_CREATE \ |
| 170 | + DRM_IOCTL_PANTHOR(WR, TILER_HEAP_CREATE, tiler_heap_create) |
| 171 | +#define DRM_IOCTL_PANTHOR_TILER_HEAP_DESTROY \ |
| 172 | + DRM_IOCTL_PANTHOR(WR, TILER_HEAP_DESTROY, tiler_heap_destroy) |
| 173 | + |
| 174 | +/** |
| 175 | + * DOC: IOCTL arguments |
| 176 | + */ |
| 177 | + |
| 178 | +/** |
| 179 | + * struct drm_panthor_obj_array - Object array. |
| 180 | + * |
| 181 | + * This object is used to pass an array of objects whose size is subject to changes in |
| 182 | + * future versions of the driver. In order to support this mutability, we pass a stride |
| 183 | + * describing the size of the object as known by userspace. |
| 184 | + * |
| 185 | + * You shouldn't fill drm_panthor_obj_array fields directly. You should instead use |
| 186 | + * the DRM_PANTHOR_OBJ_ARRAY() macro that takes care of initializing the stride to |
| 187 | + * the object size. |
| 188 | + */ |
| 189 | +struct drm_panthor_obj_array { |
| 190 | + /** @stride: Stride of object struct. Used for versioning. */ |
| 191 | + __u32 stride; |
| 192 | + |
| 193 | + /** @count: Number of objects in the array. */ |
| 194 | + __u32 count; |
| 195 | + |
| 196 | + /** @array: User pointer to an array of objects. */ |
| 197 | + __u64 array; |
| 198 | +}; |
| 199 | + |
| 200 | +/** |
| 201 | + * DRM_PANTHOR_OBJ_ARRAY() - Initialize a drm_panthor_obj_array field. |
| 202 | + * @cnt: Number of elements in the array. |
| 203 | + * @ptr: Pointer to the array to pass to the kernel. |
| 204 | + * |
| 205 | + * Macro initializing a drm_panthor_obj_array based on the object size as known |
| 206 | + * by userspace. |
| 207 | + */ |
| 208 | +#define DRM_PANTHOR_OBJ_ARRAY(cnt, ptr) \ |
| 209 | + { .stride = sizeof((ptr)[0]), .count = (cnt), .array = (__u64)(uintptr_t)(ptr) } |
| 210 | + |
| 211 | +/** |
| 212 | + * enum drm_panthor_sync_op_flags - Synchronization operation flags. |
| 213 | + */ |
| 214 | +enum drm_panthor_sync_op_flags { |
| 215 | + /** @DRM_PANTHOR_SYNC_OP_HANDLE_TYPE_MASK: Synchronization handle type mask. */ |
| 216 | + DRM_PANTHOR_SYNC_OP_HANDLE_TYPE_MASK = 0xff, |
| 217 | + |
| 218 | + /** @DRM_PANTHOR_SYNC_OP_HANDLE_TYPE_SYNCOBJ: Synchronization object type. */ |
| 219 | + DRM_PANTHOR_SYNC_OP_HANDLE_TYPE_SYNCOBJ = 0, |
| 220 | + |
| 221 | + /** |
| 222 | + * @DRM_PANTHOR_SYNC_OP_HANDLE_TYPE_TIMELINE_SYNCOBJ: Timeline synchronization |
| 223 | + * object type. |
| 224 | + */ |
| 225 | + DRM_PANTHOR_SYNC_OP_HANDLE_TYPE_TIMELINE_SYNCOBJ = 1, |
| 226 | + |
| 227 | + /** @DRM_PANTHOR_SYNC_OP_WAIT: Wait operation. */ |
| 228 | + DRM_PANTHOR_SYNC_OP_WAIT = 0 << 31, |
| 229 | + |
| 230 | + /** @DRM_PANTHOR_SYNC_OP_SIGNAL: Signal operation. */ |
| 231 | + DRM_PANTHOR_SYNC_OP_SIGNAL = (int)(1u << 31), |
| 232 | +}; |
| 233 | + |
| 234 | +/** |
| 235 | + * struct drm_panthor_sync_op - Synchronization operation. |
| 236 | + */ |
| 237 | +struct drm_panthor_sync_op { |
| 238 | + /** @flags: Synchronization operation flags. Combination of DRM_PANTHOR_SYNC_OP values. */ |
| 239 | + __u32 flags; |
| 240 | + |
| 241 | + /** @handle: Sync handle. */ |
| 242 | + __u32 handle; |
| 243 | + |
| 244 | + /** |
| 245 | + * @timeline_value: MBZ if |
| 246 | + * (flags & DRM_PANTHOR_SYNC_OP_HANDLE_TYPE_MASK) != |
| 247 | + * DRM_PANTHOR_SYNC_OP_HANDLE_TYPE_TIMELINE_SYNCOBJ. |
| 248 | + */ |
| 249 | + __u64 timeline_value; |
| 250 | +}; |
| 251 | + |
| 252 | +/** |
| 253 | + * enum drm_panthor_dev_query_type - Query type |
| 254 | + * |
| 255 | + * Place new types at the end, don't re-order, don't remove or replace. |
| 256 | + */ |
| 257 | +enum drm_panthor_dev_query_type { |
| 258 | + /** @DRM_PANTHOR_DEV_QUERY_GPU_INFO: Query GPU information. */ |
| 259 | + DRM_PANTHOR_DEV_QUERY_GPU_INFO = 0, |
| 260 | + |
| 261 | + /** @DRM_PANTHOR_DEV_QUERY_CSIF_INFO: Query command-stream interface information. */ |
| 262 | + DRM_PANTHOR_DEV_QUERY_CSIF_INFO, |
| 263 | +}; |
| 264 | + |
| 265 | +/** |
| 266 | + * struct drm_panthor_gpu_info - GPU information |
| 267 | + * |
| 268 | + * Structure grouping all queryable information relating to the GPU. |
| 269 | + */ |
| 270 | +struct drm_panthor_gpu_info { |
| 271 | + /** @gpu_id : GPU ID. */ |
| 272 | + __u32 gpu_id; |
| 273 | +#define DRM_PANTHOR_ARCH_MAJOR(x) ((x) >> 28) |
| 274 | +#define DRM_PANTHOR_ARCH_MINOR(x) (((x) >> 24) & 0xf) |
| 275 | +#define DRM_PANTHOR_ARCH_REV(x) (((x) >> 20) & 0xf) |
| 276 | +#define DRM_PANTHOR_PRODUCT_MAJOR(x) (((x) >> 16) & 0xf) |
| 277 | +#define DRM_PANTHOR_VERSION_MAJOR(x) (((x) >> 12) & 0xf) |
| 278 | +#define DRM_PANTHOR_VERSION_MINOR(x) (((x) >> 4) & 0xff) |
| 279 | +#define DRM_PANTHOR_VERSION_STATUS(x) ((x) & 0xf) |
| 280 | + |
| 281 | + /** @gpu_rev: GPU revision. */ |
| 282 | + __u32 gpu_rev; |
| 283 | + |
| 284 | + /** @csf_id: Command stream frontend ID. */ |
| 285 | + __u32 csf_id; |
| 286 | +#define DRM_PANTHOR_CSHW_MAJOR(x) (((x) >> 26) & 0x3f) |
| 287 | +#define DRM_PANTHOR_CSHW_MINOR(x) (((x) >> 20) & 0x3f) |
| 288 | +#define DRM_PANTHOR_CSHW_REV(x) (((x) >> 16) & 0xf) |
| 289 | +#define DRM_PANTHOR_MCU_MAJOR(x) (((x) >> 10) & 0x3f) |
| 290 | +#define DRM_PANTHOR_MCU_MINOR(x) (((x) >> 4) & 0x3f) |
| 291 | +#define DRM_PANTHOR_MCU_REV(x) ((x) & 0xf) |
| 292 | + |
| 293 | + /** @l2_features: L2-cache features. */ |
| 294 | + __u32 l2_features; |
| 295 | + |
| 296 | + /** @tiler_features: Tiler features. */ |
| 297 | + __u32 tiler_features; |
| 298 | + |
| 299 | + /** @mem_features: Memory features. */ |
| 300 | + __u32 mem_features; |
| 301 | + |
| 302 | + /** @mmu_features: MMU features. */ |
| 303 | + __u32 mmu_features; |
| 304 | +#define DRM_PANTHOR_MMU_VA_BITS(x) ((x) & 0xff) |
| 305 | + |
| 306 | + /** @thread_features: Thread features. */ |
| 307 | + __u32 thread_features; |
| 308 | + |
| 309 | + /** @max_threads: Maximum number of threads. */ |
| 310 | + __u32 max_threads; |
| 311 | + |
| 312 | + /** @thread_max_workgroup_size: Maximum workgroup size. */ |
| 313 | + __u32 thread_max_workgroup_size; |
| 314 | + |
| 315 | + /** |
| 316 | + * @thread_max_barrier_size: Maximum number of threads that can wait |
| 317 | + * simultaneously on a barrier. |
| 318 | + */ |
| 319 | + __u32 thread_max_barrier_size; |
| 320 | + |
| 321 | + /** @coherency_features: Coherency features. */ |
| 322 | + __u32 coherency_features; |
| 323 | + |
| 324 | + /** @texture_features: Texture features. */ |
| 325 | + __u32 texture_features[4]; |
| 326 | + |
| 327 | + /** @as_present: Bitmask encoding the number of address-space exposed by the MMU. */ |
| 328 | + __u32 as_present; |
| 329 | + |
| 330 | + /** @shader_present: Bitmask encoding the shader cores exposed by the GPU. */ |
| 331 | + __u64 shader_present; |
| 332 | + |
| 333 | + /** @l2_present: Bitmask encoding the L2 caches exposed by the GPU. */ |
| 334 | + __u64 l2_present; |
| 335 | + |
| 336 | + /** @tiler_present: Bitmask encoding the tiler units exposed by the GPU. */ |
| 337 | + __u64 tiler_present; |
| 338 | + |
| 339 | + /** @core_features: Used to discriminate core variants when they exist. */ |
| 340 | + __u32 core_features; |
| 341 | + |
| 342 | + /** @pad: MBZ. */ |
| 343 | + __u32 pad; |
| 344 | +}; |
| 345 | + |
| 346 | +/** |
| 347 | + * struct drm_panthor_csif_info - Command stream interface information |
| 348 | + * |
| 349 | + * Structure grouping all queryable information relating to the command stream interface. |
| 350 | + */ |
| 351 | +struct drm_panthor_csif_info { |
| 352 | + /** @csg_slot_count: Number of command stream group slots exposed by the firmware. */ |
| 353 | + __u32 csg_slot_count; |
| 354 | + |
| 355 | + /** @cs_slot_count: Number of command stream slots per group. */ |
| 356 | + __u32 cs_slot_count; |
| 357 | + |
| 358 | + /** @cs_reg_count: Number of command stream registers. */ |
| 359 | + __u32 cs_reg_count; |
| 360 | + |
| 361 | + /** @scoreboard_slot_count: Number of scoreboard slots. */ |
| 362 | + __u32 scoreboard_slot_count; |
| 363 | + |
| 364 | + /** |
| 365 | + * @unpreserved_cs_reg_count: Number of command stream registers reserved by |
| 366 | + * the kernel driver to call a userspace command stream. |
| 367 | + * |
| 368 | + * All registers can be used by a userspace command stream, but the |
| 369 | + * [cs_slot_count - unpreserved_cs_reg_count .. cs_slot_count] registers are |
| 370 | + * used by the kernel when DRM_PANTHOR_IOCTL_GROUP_SUBMIT is called. |
| 371 | + */ |
| 372 | + __u32 unpreserved_cs_reg_count; |
| 373 | + |
| 374 | + /** |
| 375 | + * @pad: Padding field, set to zero. |
| 376 | + */ |
| 377 | + __u32 pad; |
| 378 | +}; |
| 379 | + |
| 380 | +/** |
| 381 | + * struct drm_panthor_dev_query - Arguments passed to DRM_PANTHOR_IOCTL_DEV_QUERY |
| 382 | + */ |
| 383 | +struct drm_panthor_dev_query { |
| 384 | + /** @type: the query type (see drm_panthor_dev_query_type). */ |
| 385 | + __u32 type; |
| 386 | + |
| 387 | + /** |
| 388 | + * @size: size of the type being queried. |
| 389 | + * |
| 390 | + * If pointer is NULL, size is updated by the driver to provide the |
| 391 | + * output structure size. If pointer is not NULL, the driver will |
| 392 | + * only copy min(size, actual_structure_size) bytes to the pointer, |
| 393 | + * and update the size accordingly. This allows us to extend query |
| 394 | + * types without breaking userspace. |
| 395 | + */ |
| 396 | + __u32 size; |
| 397 | + |
| 398 | + /** |
| 399 | + * @pointer: user pointer to a query type struct. |
| 400 | + * |
| 401 | + * Pointer can be NULL, in which case, nothing is copied, but the |
| 402 | + * actual structure size is returned. If not NULL, it must point to |
| 403 | + * a location that's large enough to hold size bytes. |
| 404 | + */ |
| 405 | + __u64 pointer; |
| 406 | +}; |
| 407 | + |
| 408 | +/** |
| 409 | + * struct drm_panthor_vm_create - Arguments passed to DRM_PANTHOR_IOCTL_VM_CREATE |
| 410 | + */ |
| 411 | +struct drm_panthor_vm_create { |
| 412 | + /** @flags: VM flags, MBZ. */ |
| 413 | + __u32 flags; |
| 414 | + |
| 415 | + /** @id: Returned VM ID. */ |
| 416 | + __u32 id; |
| 417 | + |
| 418 | + /** |
| 419 | + * @user_va_range: Size of the VA space reserved for user objects. |
| 420 | + * |
| 421 | + * The kernel will pick the remaining space to map kernel-only objects to the |
| 422 | + * VM (heap chunks, heap context, ring buffers, kernel synchronization objects, |
| 423 | + * ...). If the space left for kernel objects is too small, kernel object |
| 424 | + * allocation will fail further down the road. One can use |
| 425 | + * drm_panthor_gpu_info::mmu_features to extract the total virtual address |
| 426 | + * range, and chose a user_va_range that leaves some space to the kernel. |
| 427 | + * |
| 428 | + * If user_va_range is zero, the kernel will pick a sensible value based on |
| 429 | + * TASK_SIZE and the virtual range supported by the GPU MMU (the kernel/user |
| 430 | + * split should leave enough VA space for userspace processes to support SVM, |
| 431 | + * while still allowing the kernel to map some amount of kernel objects in |
| 432 | + * the kernel VA range). The value chosen by the driver will be returned in |
| 433 | + * @user_va_range. |
| 434 | + * |
| 435 | + * User VA space always starts at 0x0, kernel VA space is always placed after |
| 436 | + * the user VA range. |
| 437 | + */ |
| 438 | + __u64 user_va_range; |
| 439 | +}; |
| 440 | + |
| 441 | +/** |
| 442 | + * struct drm_panthor_vm_destroy - Arguments passed to DRM_PANTHOR_IOCTL_VM_DESTROY |
| 443 | + */ |
| 444 | +struct drm_panthor_vm_destroy { |
| 445 | + /** @id: ID of the VM to destroy. */ |
| 446 | + __u32 id; |
| 447 | + |
| 448 | + /** @pad: MBZ. */ |
| 449 | + __u32 pad; |
| 450 | +}; |
| 451 | + |
| 452 | +/** |
| 453 | + * enum drm_panthor_vm_bind_op_flags - VM bind operation flags |
| 454 | + */ |
| 455 | +enum drm_panthor_vm_bind_op_flags { |
| 456 | + /** |
| 457 | + * @DRM_PANTHOR_VM_BIND_OP_MAP_READONLY: Map the memory read-only. |
| 458 | + * |
| 459 | + * Only valid with DRM_PANTHOR_VM_BIND_OP_TYPE_MAP. |
| 460 | + */ |
| 461 | + DRM_PANTHOR_VM_BIND_OP_MAP_READONLY = 1 << 0, |
| 462 | + |
| 463 | + /** |
| 464 | + * @DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC: Map the memory not-executable. |
| 465 | + * |
| 466 | + * Only valid with DRM_PANTHOR_VM_BIND_OP_TYPE_MAP. |
| 467 | + */ |
| 468 | + DRM_PANTHOR_VM_BIND_OP_MAP_NOEXEC = 1 << 1, |
| 469 | + |
| 470 | + /** |
| 471 | + * @DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED: Map the memory uncached. |
| 472 | + * |
| 473 | + * Only valid with DRM_PANTHOR_VM_BIND_OP_TYPE_MAP. |
| 474 | + */ |
| 475 | + DRM_PANTHOR_VM_BIND_OP_MAP_UNCACHED = 1 << 2, |
| 476 | + |
| 477 | + /** |
| 478 | + * @DRM_PANTHOR_VM_BIND_OP_TYPE_MASK: Mask used to determine the type of operation. |
| 479 | + */ |
| 480 | + DRM_PANTHOR_VM_BIND_OP_TYPE_MASK = (int)(0xfu << 28), |
| 481 | + |
| 482 | + /** @DRM_PANTHOR_VM_BIND_OP_TYPE_MAP: Map operation. */ |
| 483 | + DRM_PANTHOR_VM_BIND_OP_TYPE_MAP = 0 << 28, |
| 484 | + |
| 485 | + /** @DRM_PANTHOR_VM_BIND_OP_TYPE_UNMAP: Unmap operation. */ |
| 486 | + DRM_PANTHOR_VM_BIND_OP_TYPE_UNMAP = 1 << 28, |
| 487 | + |
| 488 | + /** |
| 489 | + * @DRM_PANTHOR_VM_BIND_OP_TYPE_SYNC_ONLY: No VM operation. |
| 490 | + * |
| 491 | + * Just serves as a synchronization point on a VM queue. |
| 492 | + * |
| 493 | + * Only valid if %DRM_PANTHOR_VM_BIND_ASYNC is set in drm_panthor_vm_bind::flags, |
| 494 | + * and drm_panthor_vm_bind_op::syncs contains at least one element. |
| 495 | + */ |
| 496 | + DRM_PANTHOR_VM_BIND_OP_TYPE_SYNC_ONLY = 2 << 28, |
| 497 | +}; |
| 498 | + |
| 499 | +/** |
| 500 | + * struct drm_panthor_vm_bind_op - VM bind operation |
| 501 | + */ |
| 502 | +struct drm_panthor_vm_bind_op { |
| 503 | + /** @flags: Combination of drm_panthor_vm_bind_op_flags flags. */ |
| 504 | + __u32 flags; |
| 505 | + |
| 506 | + /** |
| 507 | + * @bo_handle: Handle of the buffer object to map. |
| 508 | + * MBZ for unmap or sync-only operations. |
| 509 | + */ |
| 510 | + __u32 bo_handle; |
| 511 | + |
| 512 | + /** |
| 513 | + * @bo_offset: Buffer object offset. |
| 514 | + * MBZ for unmap or sync-only operations. |
| 515 | + */ |
| 516 | + __u64 bo_offset; |
| 517 | + |
| 518 | + /** |
| 519 | + * @va: Virtual address to map/unmap. |
| 520 | + * MBZ for sync-only operations. |
| 521 | + */ |
| 522 | + __u64 va; |
| 523 | + |
| 524 | + /** |
| 525 | + * @size: Size to map/unmap. |
| 526 | + * MBZ for sync-only operations. |
| 527 | + */ |
| 528 | + __u64 size; |
| 529 | + |
| 530 | + /** |
| 531 | + * @syncs: Array of struct drm_panthor_sync_op synchronization |
| 532 | + * operations. |
| 533 | + * |
| 534 | + * This array must be empty if %DRM_PANTHOR_VM_BIND_ASYNC is not set on |
| 535 | + * the drm_panthor_vm_bind object containing this VM bind operation. |
| 536 | + * |
| 537 | + * This array shall not be empty for sync-only operations. |
| 538 | + */ |
| 539 | + struct drm_panthor_obj_array syncs; |
| 540 | + |
| 541 | +}; |
| 542 | + |
| 543 | +/** |
| 544 | + * enum drm_panthor_vm_bind_flags - VM bind flags |
| 545 | + */ |
| 546 | +enum drm_panthor_vm_bind_flags { |
| 547 | + /** |
| 548 | + * @DRM_PANTHOR_VM_BIND_ASYNC: VM bind operations are queued to the VM |
| 549 | + * queue instead of being executed synchronously. |
| 550 | + */ |
| 551 | + DRM_PANTHOR_VM_BIND_ASYNC = 1 << 0, |
| 552 | +}; |
| 553 | + |
| 554 | +/** |
| 555 | + * struct drm_panthor_vm_bind - Arguments passed to DRM_IOCTL_PANTHOR_VM_BIND |
| 556 | + */ |
| 557 | +struct drm_panthor_vm_bind { |
| 558 | + /** @vm_id: VM targeted by the bind request. */ |
| 559 | + __u32 vm_id; |
| 560 | + |
| 561 | + /** @flags: Combination of drm_panthor_vm_bind_flags flags. */ |
| 562 | + __u32 flags; |
| 563 | + |
| 564 | + /** @ops: Array of struct drm_panthor_vm_bind_op bind operations. */ |
| 565 | + struct drm_panthor_obj_array ops; |
| 566 | +}; |
| 567 | + |
| 568 | +/** |
| 569 | + * enum drm_panthor_vm_state - VM states. |
| 570 | + */ |
| 571 | +enum drm_panthor_vm_state { |
| 572 | + /** |
| 573 | + * @DRM_PANTHOR_VM_STATE_USABLE: VM is usable. |
| 574 | + * |
| 575 | + * New VM operations will be accepted on this VM. |
| 576 | + */ |
| 577 | + DRM_PANTHOR_VM_STATE_USABLE, |
| 578 | + |
| 579 | + /** |
| 580 | + * @DRM_PANTHOR_VM_STATE_UNUSABLE: VM is unusable. |
| 581 | + * |
| 582 | + * Something put the VM in an unusable state (like an asynchronous |
| 583 | + * VM_BIND request failing for any reason). |
| 584 | + * |
| 585 | + * Once the VM is in this state, all new MAP operations will be |
| 586 | + * rejected, and any GPU job targeting this VM will fail. |
| 587 | + * UNMAP operations are still accepted. |
| 588 | + * |
| 589 | + * The only way to recover from an unusable VM is to create a new |
| 590 | + * VM, and destroy the old one. |
| 591 | + */ |
| 592 | + DRM_PANTHOR_VM_STATE_UNUSABLE, |
| 593 | +}; |
| 594 | + |
| 595 | +/** |
| 596 | + * struct drm_panthor_vm_get_state - Get VM state. |
| 597 | + */ |
| 598 | +struct drm_panthor_vm_get_state { |
| 599 | + /** @vm_id: VM targeted by the get_state request. */ |
| 600 | + __u32 vm_id; |
| 601 | + |
| 602 | + /** |
| 603 | + * @state: state returned by the driver. |
| 604 | + * |
| 605 | + * Must be one of the enum drm_panthor_vm_state values. |
| 606 | + */ |
| 607 | + __u32 state; |
| 608 | +}; |
| 609 | + |
| 610 | +/** |
| 611 | + * enum drm_panthor_bo_flags - Buffer object flags, passed at creation time. |
| 612 | + */ |
| 613 | +enum drm_panthor_bo_flags { |
| 614 | + /** @DRM_PANTHOR_BO_NO_MMAP: The buffer object will never be CPU-mapped in userspace. */ |
| 615 | + DRM_PANTHOR_BO_NO_MMAP = (1 << 0), |
| 616 | +}; |
| 617 | + |
| 618 | +/** |
| 619 | + * struct drm_panthor_bo_create - Arguments passed to DRM_IOCTL_PANTHOR_BO_CREATE. |
| 620 | + */ |
| 621 | +struct drm_panthor_bo_create { |
| 622 | + /** |
| 623 | + * @size: Requested size for the object |
| 624 | + * |
| 625 | + * The (page-aligned) allocated size for the object will be returned. |
| 626 | + */ |
| 627 | + __u64 size; |
| 628 | + |
| 629 | + /** |
| 630 | + * @flags: Flags. Must be a combination of drm_panthor_bo_flags flags. |
| 631 | + */ |
| 632 | + __u32 flags; |
| 633 | + |
| 634 | + /** |
| 635 | + * @exclusive_vm_id: Exclusive VM this buffer object will be mapped to. |
| 636 | + * |
| 637 | + * If not zero, the field must refer to a valid VM ID, and implies that: |
| 638 | + * - the buffer object will only ever be bound to that VM |
| 639 | + * - cannot be exported as a PRIME fd |
| 640 | + */ |
| 641 | + __u32 exclusive_vm_id; |
| 642 | + |
| 643 | + /** |
| 644 | + * @handle: Returned handle for the object. |
| 645 | + * |
| 646 | + * Object handles are nonzero. |
| 647 | + */ |
| 648 | + __u32 handle; |
| 649 | + |
| 650 | + /** @pad: MBZ. */ |
| 651 | + __u32 pad; |
| 652 | +}; |
| 653 | + |
| 654 | +/** |
| 655 | + * struct drm_panthor_bo_mmap_offset - Arguments passed to DRM_IOCTL_PANTHOR_BO_MMAP_OFFSET. |
| 656 | + */ |
| 657 | +struct drm_panthor_bo_mmap_offset { |
| 658 | + /** @handle: Handle of the object we want an mmap offset for. */ |
| 659 | + __u32 handle; |
| 660 | + |
| 661 | + /** @pad: MBZ. */ |
| 662 | + __u32 pad; |
| 663 | + |
| 664 | + /** @offset: The fake offset to use for subsequent mmap calls. */ |
| 665 | + __u64 offset; |
| 666 | +}; |
| 667 | + |
| 668 | +/** |
| 669 | + * struct drm_panthor_queue_create - Queue creation arguments. |
| 670 | + */ |
| 671 | +struct drm_panthor_queue_create { |
| 672 | + /** |
| 673 | + * @priority: Defines the priority of queues inside a group. Goes from 0 to 15, |
| 674 | + * 15 being the highest priority. |
| 675 | + */ |
| 676 | + __u8 priority; |
| 677 | + |
| 678 | + /** @pad: Padding fields, MBZ. */ |
| 679 | + __u8 pad[3]; |
| 680 | + |
| 681 | + /** @ringbuf_size: Size of the ring buffer to allocate to this queue. */ |
| 682 | + __u32 ringbuf_size; |
| 683 | +}; |
| 684 | + |
| 685 | +/** |
| 686 | + * enum drm_panthor_group_priority - Scheduling group priority |
| 687 | + */ |
| 688 | +enum drm_panthor_group_priority { |
| 689 | + /** @PANTHOR_GROUP_PRIORITY_LOW: Low priority group. */ |
| 690 | + PANTHOR_GROUP_PRIORITY_LOW = 0, |
| 691 | + |
| 692 | + /** @PANTHOR_GROUP_PRIORITY_MEDIUM: Medium priority group. */ |
| 693 | + PANTHOR_GROUP_PRIORITY_MEDIUM, |
| 694 | + |
| 695 | + /** @PANTHOR_GROUP_PRIORITY_HIGH: High priority group. */ |
| 696 | + PANTHOR_GROUP_PRIORITY_HIGH, |
| 697 | +}; |
| 698 | + |
| 699 | +/** |
| 700 | + * struct drm_panthor_group_create - Arguments passed to DRM_IOCTL_PANTHOR_GROUP_CREATE |
| 701 | + */ |
| 702 | +struct drm_panthor_group_create { |
| 703 | + /** @queues: Array of drm_panthor_queue_create elements. */ |
| 704 | + struct drm_panthor_obj_array queues; |
| 705 | + |
| 706 | + /** |
| 707 | + * @max_compute_cores: Maximum number of cores that can be used by compute |
| 708 | + * jobs across CS queues bound to this group. |
| 709 | + * |
| 710 | + * Must be less or equal to the number of bits set in @compute_core_mask. |
| 711 | + */ |
| 712 | + __u8 max_compute_cores; |
| 713 | + |
| 714 | + /** |
| 715 | + * @max_fragment_cores: Maximum number of cores that can be used by fragment |
| 716 | + * jobs across CS queues bound to this group. |
| 717 | + * |
| 718 | + * Must be less or equal to the number of bits set in @fragment_core_mask. |
| 719 | + */ |
| 720 | + __u8 max_fragment_cores; |
| 721 | + |
| 722 | + /** |
| 723 | + * @max_tiler_cores: Maximum number of tilers that can be used by tiler jobs |
| 724 | + * across CS queues bound to this group. |
| 725 | + * |
| 726 | + * Must be less or equal to the number of bits set in @tiler_core_mask. |
| 727 | + */ |
| 728 | + __u8 max_tiler_cores; |
| 729 | + |
| 730 | + /** @priority: Group priority (see enum drm_panthor_group_priority). */ |
| 731 | + __u8 priority; |
| 732 | + |
| 733 | + /** @pad: Padding field, MBZ. */ |
| 734 | + __u32 pad; |
| 735 | + |
| 736 | + /** |
| 737 | + * @compute_core_mask: Mask encoding cores that can be used for compute jobs. |
| 738 | + * |
| 739 | + * This field must have at least @max_compute_cores bits set. |
| 740 | + * |
| 741 | + * The bits set here should also be set in drm_panthor_gpu_info::shader_present. |
| 742 | + */ |
| 743 | + __u64 compute_core_mask; |
| 744 | + |
| 745 | + /** |
| 746 | + * @fragment_core_mask: Mask encoding cores that can be used for fragment jobs. |
| 747 | + * |
| 748 | + * This field must have at least @max_fragment_cores bits set. |
| 749 | + * |
| 750 | + * The bits set here should also be set in drm_panthor_gpu_info::shader_present. |
| 751 | + */ |
| 752 | + __u64 fragment_core_mask; |
| 753 | + |
| 754 | + /** |
| 755 | + * @tiler_core_mask: Mask encoding cores that can be used for tiler jobs. |
| 756 | + * |
| 757 | + * This field must have at least @max_tiler_cores bits set. |
| 758 | + * |
| 759 | + * The bits set here should also be set in drm_panthor_gpu_info::tiler_present. |
| 760 | + */ |
| 761 | + __u64 tiler_core_mask; |
| 762 | + |
| 763 | + /** |
| 764 | + * @vm_id: VM ID to bind this group to. |
| 765 | + * |
| 766 | + * All submission to queues bound to this group will use this VM. |
| 767 | + */ |
| 768 | + __u32 vm_id; |
| 769 | + |
| 770 | + /** |
| 771 | + * @group_handle: Returned group handle. Passed back when submitting jobs or |
| 772 | + * destroying a group. |
| 773 | + */ |
| 774 | + __u32 group_handle; |
| 775 | +}; |
| 776 | + |
| 777 | +/** |
| 778 | + * struct drm_panthor_group_destroy - Arguments passed to DRM_IOCTL_PANTHOR_GROUP_DESTROY |
| 779 | + */ |
| 780 | +struct drm_panthor_group_destroy { |
| 781 | + /** @group_handle: Group to destroy */ |
| 782 | + __u32 group_handle; |
| 783 | + |
| 784 | + /** @pad: Padding field, MBZ. */ |
| 785 | + __u32 pad; |
| 786 | +}; |
| 787 | + |
| 788 | +/** |
| 789 | + * struct drm_panthor_queue_submit - Job submission arguments. |
| 790 | + * |
| 791 | + * This is describing the userspace command stream to call from the kernel |
| 792 | + * command stream ring-buffer. Queue submission is always part of a group |
| 793 | + * submission, taking one or more jobs to submit to the underlying queues. |
| 794 | + */ |
| 795 | +struct drm_panthor_queue_submit { |
| 796 | + /** @queue_index: Index of the queue inside a group. */ |
| 797 | + __u32 queue_index; |
| 798 | + |
| 799 | + /** |
| 800 | + * @stream_size: Size of the command stream to execute. |
| 801 | + * |
| 802 | + * Must be 64-bit/8-byte aligned (the size of a CS instruction) |
| 803 | + * |
| 804 | + * Can be zero if stream_addr is zero too. |
| 805 | + */ |
| 806 | + __u32 stream_size; |
| 807 | + |
| 808 | + /** |
| 809 | + * @stream_addr: GPU address of the command stream to execute. |
| 810 | + * |
| 811 | + * Must be aligned on 64-byte. |
| 812 | + * |
| 813 | + * Can be zero is stream_size is zero too. |
| 814 | + */ |
| 815 | + __u64 stream_addr; |
| 816 | + |
| 817 | + /** |
| 818 | + * @latest_flush: FLUSH_ID read at the time the stream was built. |
| 819 | + * |
| 820 | + * This allows cache flush elimination for the automatic |
| 821 | + * flush+invalidate(all) done at submission time, which is needed to |
| 822 | + * ensure the GPU doesn't get garbage when reading the indirect command |
| 823 | + * stream buffers. If you want the cache flush to happen |
| 824 | + * unconditionally, pass a zero here. |
| 825 | + */ |
| 826 | + __u32 latest_flush; |
| 827 | + |
| 828 | + /** @pad: MBZ. */ |
| 829 | + __u32 pad; |
| 830 | + |
| 831 | + /** @syncs: Array of struct drm_panthor_sync_op sync operations. */ |
| 832 | + struct drm_panthor_obj_array syncs; |
| 833 | +}; |
| 834 | + |
| 835 | +/** |
| 836 | + * struct drm_panthor_group_submit - Arguments passed to DRM_IOCTL_PANTHOR_GROUP_SUBMIT |
| 837 | + */ |
| 838 | +struct drm_panthor_group_submit { |
| 839 | + /** @group_handle: Handle of the group to queue jobs to. */ |
| 840 | + __u32 group_handle; |
| 841 | + |
| 842 | + /** @pad: MBZ. */ |
| 843 | + __u32 pad; |
| 844 | + |
| 845 | + /** @queue_submits: Array of drm_panthor_queue_submit objects. */ |
| 846 | + struct drm_panthor_obj_array queue_submits; |
| 847 | +}; |
| 848 | + |
| 849 | +/** |
| 850 | + * enum drm_panthor_group_state_flags - Group state flags |
| 851 | + */ |
| 852 | +enum drm_panthor_group_state_flags { |
| 853 | + /** |
| 854 | + * @DRM_PANTHOR_GROUP_STATE_TIMEDOUT: Group had unfinished jobs. |
| 855 | + * |
| 856 | + * When a group ends up with this flag set, no jobs can be submitted to its queues. |
| 857 | + */ |
| 858 | + DRM_PANTHOR_GROUP_STATE_TIMEDOUT = 1 << 0, |
| 859 | + |
| 860 | + /** |
| 861 | + * @DRM_PANTHOR_GROUP_STATE_FATAL_FAULT: Group had fatal faults. |
| 862 | + * |
| 863 | + * When a group ends up with this flag set, no jobs can be submitted to its queues. |
| 864 | + */ |
| 865 | + DRM_PANTHOR_GROUP_STATE_FATAL_FAULT = 1 << 1, |
| 866 | +}; |
| 867 | + |
| 868 | +/** |
| 869 | + * struct drm_panthor_group_get_state - Arguments passed to DRM_IOCTL_PANTHOR_GROUP_GET_STATE |
| 870 | + * |
| 871 | + * Used to query the state of a group and decide whether a new group should be created to |
| 872 | + * replace it. |
| 873 | + */ |
| 874 | +struct drm_panthor_group_get_state { |
| 875 | + /** @group_handle: Handle of the group to query state on */ |
| 876 | + __u32 group_handle; |
| 877 | + |
| 878 | + /** |
| 879 | + * @state: Combination of DRM_PANTHOR_GROUP_STATE_* flags encoding the |
| 880 | + * group state. |
| 881 | + */ |
| 882 | + __u32 state; |
| 883 | + |
| 884 | + /** @fatal_queues: Bitmask of queues that faced fatal faults. */ |
| 885 | + __u32 fatal_queues; |
| 886 | + |
| 887 | + /** @pad: MBZ */ |
| 888 | + __u32 pad; |
| 889 | +}; |
| 890 | + |
| 891 | +/** |
| 892 | + * struct drm_panthor_tiler_heap_create - Arguments passed to DRM_IOCTL_PANTHOR_TILER_HEAP_CREATE |
| 893 | + */ |
| 894 | +struct drm_panthor_tiler_heap_create { |
| 895 | + /** @vm_id: VM ID the tiler heap should be mapped to */ |
| 896 | + __u32 vm_id; |
| 897 | + |
| 898 | + /** @initial_chunk_count: Initial number of chunks to allocate. */ |
| 899 | + __u32 initial_chunk_count; |
| 900 | + |
| 901 | + /** @chunk_size: Chunk size. Must be a power of two at least 256KB large. */ |
| 902 | + __u32 chunk_size; |
| 903 | + |
| 904 | + /** @max_chunks: Maximum number of chunks that can be allocated. */ |
| 905 | + __u32 max_chunks; |
| 906 | + |
| 907 | + /** |
| 908 | + * @target_in_flight: Maximum number of in-flight render passes. |
| 909 | + * |
| 910 | + * If the heap has more than tiler jobs in-flight, the FW will wait for render |
| 911 | + * passes to finish before queuing new tiler jobs. |
| 912 | + */ |
| 913 | + __u32 target_in_flight; |
| 914 | + |
| 915 | + /** @handle: Returned heap handle. Passed back to DESTROY_TILER_HEAP. */ |
| 916 | + __u32 handle; |
| 917 | + |
| 918 | + /** @tiler_heap_ctx_gpu_va: Returned heap GPU virtual address returned */ |
| 919 | + __u64 tiler_heap_ctx_gpu_va; |
| 920 | + |
| 921 | + /** |
| 922 | + * @first_heap_chunk_gpu_va: First heap chunk. |
| 923 | + * |
| 924 | + * The tiler heap is formed of heap chunks forming a single-link list. This |
| 925 | + * is the first element in the list. |
| 926 | + */ |
| 927 | + __u64 first_heap_chunk_gpu_va; |
| 928 | +}; |
| 929 | + |
| 930 | +/** |
| 931 | + * struct drm_panthor_tiler_heap_destroy - Arguments passed to DRM_IOCTL_PANTHOR_TILER_HEAP_DESTROY |
| 932 | + */ |
| 933 | +struct drm_panthor_tiler_heap_destroy { |
| 934 | + /** @handle: Handle of the tiler heap to destroy */ |
| 935 | + __u32 handle; |
| 936 | + |
| 937 | + /** @pad: Padding field, MBZ. */ |
| 938 | + __u32 pad; |
| 939 | +}; |
| 940 | + |
| 941 | +#if defined(__cplusplus) |
| 942 | +} |
| 943 | +#endif |
| 944 | + |
| 945 | +#endif /* _PANTHOR_DRM_H_ */ |