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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_ */ |