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1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright © 2014-2018 Broadcom
4 * Copyright © 2019 Collabora ltd.
5 */
6#ifndef _PANFROST_DRM_H_
7#define _PANFROST_DRM_H_
8
9#include "drm.h"
10
11#if defined(__cplusplus)
12extern "C" {
13#endif
14
15#define DRM_PANFROST_SUBMIT 0x00
16#define DRM_PANFROST_WAIT_BO 0x01
17#define DRM_PANFROST_CREATE_BO 0x02
18#define DRM_PANFROST_MMAP_BO 0x03
19#define DRM_PANFROST_GET_PARAM 0x04
20#define DRM_PANFROST_GET_BO_OFFSET 0x05
21#define DRM_PANFROST_PERFCNT_ENABLE 0x06
22#define DRM_PANFROST_PERFCNT_DUMP 0x07
23#define DRM_PANFROST_MADVISE 0x08
24#define DRM_PANFROST_SET_LABEL_BO 0x09
25#define DRM_PANFROST_JM_CTX_CREATE 0x0a
26#define DRM_PANFROST_JM_CTX_DESTROY 0x0b
27#define DRM_PANFROST_SYNC_BO 0x0c
28#define DRM_PANFROST_QUERY_BO_INFO 0x0d
29
30#define DRM_IOCTL_PANFROST_SUBMIT DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_SUBMIT, struct drm_panfrost_submit)
31#define DRM_IOCTL_PANFROST_WAIT_BO DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_WAIT_BO, struct drm_panfrost_wait_bo)
32#define DRM_IOCTL_PANFROST_CREATE_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_CREATE_BO, struct drm_panfrost_create_bo)
33#define DRM_IOCTL_PANFROST_MMAP_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MMAP_BO, struct drm_panfrost_mmap_bo)
34#define DRM_IOCTL_PANFROST_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_PARAM, struct drm_panfrost_get_param)
35#define DRM_IOCTL_PANFROST_GET_BO_OFFSET DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_GET_BO_OFFSET, struct drm_panfrost_get_bo_offset)
36#define DRM_IOCTL_PANFROST_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_MADVISE, struct drm_panfrost_madvise)
37#define DRM_IOCTL_PANFROST_SET_LABEL_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_SET_LABEL_BO, struct drm_panfrost_set_label_bo)
38#define DRM_IOCTL_PANFROST_JM_CTX_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_JM_CTX_CREATE, struct drm_panfrost_jm_ctx_create)
39#define DRM_IOCTL_PANFROST_JM_CTX_DESTROY DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_JM_CTX_DESTROY, struct drm_panfrost_jm_ctx_destroy)
40#define DRM_IOCTL_PANFROST_SYNC_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_SYNC_BO, struct drm_panfrost_sync_bo)
41#define DRM_IOCTL_PANFROST_QUERY_BO_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_PANFROST_QUERY_BO_INFO, struct drm_panfrost_query_bo_info)
42
43/*
44 * Unstable ioctl(s): only exposed when the unsafe unstable_ioctls module
45 * param is set to true.
46 * All these ioctl(s) are subject to deprecation, so please don't rely on
47 * them for anything but debugging purpose.
48 */
49#define DRM_IOCTL_PANFROST_PERFCNT_ENABLE DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_ENABLE, struct drm_panfrost_perfcnt_enable)
50#define DRM_IOCTL_PANFROST_PERFCNT_DUMP DRM_IOW(DRM_COMMAND_BASE + DRM_PANFROST_PERFCNT_DUMP, struct drm_panfrost_perfcnt_dump)
51
52#define PANFROST_JD_REQ_FS (1 << 0)
53#define PANFROST_JD_REQ_CYCLE_COUNT (1 << 1)
54/**
55 * struct drm_panfrost_submit - ioctl argument for submitting commands to the 3D
56 * engine.
57 *
58 * This asks the kernel to have the GPU execute a render command list.
59 */
60struct drm_panfrost_submit {
61 /**
62 * @jc: Address to GPU mapping of job descriptor
63 */
64 __u64 jc;
65 /**
66 * @in_syncs: An optional array of sync objects to wait on
67 * before starting this job.
68 */
69 __u64 in_syncs;
70 /**
71 * @in_sync_count: Number of sync objects to wait on before
72 * starting this job.
73 */
74 __u32 in_sync_count;
75 /**
76 * @out_sync: An optional sync object to place the completion fence in.
77 */
78 __u32 out_sync;
79 /**
80 * @bo_handles: Pointer to a u32 array of the BOs that are
81 * referenced by the job.
82 */
83 __u64 bo_handles;
84 /**
85 * @bo_handle_count: Number of BO handles passed in (size is
86 * that times 4).
87 */
88 __u32 bo_handle_count;
89 /**
90 * @requirements: A combination of PANFROST_JD_REQ_*
91 */
92 __u32 requirements;
93 /**
94 * @jm_ctx_handle: JM context handle. Zero if you want to use the
95 * default context.
96 */
97 __u32 jm_ctx_handle;
98 /**
99 * @pad: Padding field. Must be zero.
100 */
101 __u32 pad;
102};
103
104/**
105 * struct drm_panfrost_wait_bo - ioctl argument for waiting for
106 * completion of the last DRM_PANFROST_SUBMIT on a BO.
107 *
108 * This is useful for cases where multiple processes might be
109 * rendering to a BO and you want to wait for all rendering to be
110 * completed.
111 */
112struct drm_panfrost_wait_bo {
113 /**
114 * @handle: Handle for the object to wait for.
115 */
116 __u32 handle;
117 /**
118 * @pad: Padding, must be zero-filled.
119 */
120 __u32 pad;
121 /**
122 * @timeout_ns: absolute number of nanoseconds to wait.
123 */
124 __s64 timeout_ns;
125};
126
127/* Valid flags to pass to drm_panfrost_create_bo.
128 * PANFROST_BO_WB_MMAP can't be set if PANFROST_BO_HEAP is.
129 */
130#define PANFROST_BO_NOEXEC 1
131#define PANFROST_BO_HEAP 2
132#define PANFROST_BO_WB_MMAP 4
133
134/**
135 * struct drm_panfrost_create_bo - ioctl argument for creating Panfrost BOs.
136 *
137 * The flags argument is a bit mask of PANFROST_BO_* flags.
138 */
139struct drm_panfrost_create_bo {
140 /**
141 * @size: size of shmem/BO area to create (bytes)
142 */
143 __u32 size;
144 /**
145 * @flags: see PANFROST_BO_* flags
146 */
147 __u32 flags;
148 /**
149 * @handle: Returned GEM handle for the BO.
150 */
151 __u32 handle;
152 /**
153 * @pad: Padding, must be zero-filled.
154 */
155 __u32 pad;
156 /**
157 * @offset: Returned offset for the BO in the GPU address space.
158 * This offset is private to the DRM fd and is valid for the
159 * lifetime of the GEM handle.
160 *
161 * This offset value will always be nonzero, since various HW
162 * units treat 0 specially.
163 */
164 __u64 offset;
165};
166
167/**
168 * struct drm_panfrost_mmap_bo - ioctl argument for mapping Panfrost BOs.
169 *
170 * This doesn't actually perform an mmap. Instead, it returns the
171 * offset you need to use in an mmap on the DRM device node. This
172 * means that tools like valgrind end up knowing about the mapped
173 * memory.
174 *
175 * There are currently no values for the flags argument, but it may be
176 * used in a future extension.
177 */
178struct drm_panfrost_mmap_bo {
179 /**
180 * @handle: Handle for the object being mapped.
181 */
182 __u32 handle;
183 /**
184 * @flags: currently not used (should be zero)
185 */
186 __u32 flags;
187 /**
188 * @offset: offset into the drm node to use for subsequent mmap call.
189 */
190 __u64 offset;
191};
192
193enum drm_panfrost_param {
194 DRM_PANFROST_PARAM_GPU_PROD_ID,
195 DRM_PANFROST_PARAM_GPU_REVISION,
196 DRM_PANFROST_PARAM_SHADER_PRESENT,
197 DRM_PANFROST_PARAM_TILER_PRESENT,
198 DRM_PANFROST_PARAM_L2_PRESENT,
199 DRM_PANFROST_PARAM_STACK_PRESENT,
200 DRM_PANFROST_PARAM_AS_PRESENT,
201 DRM_PANFROST_PARAM_JS_PRESENT,
202 DRM_PANFROST_PARAM_L2_FEATURES,
203 DRM_PANFROST_PARAM_CORE_FEATURES,
204 DRM_PANFROST_PARAM_TILER_FEATURES,
205 DRM_PANFROST_PARAM_MEM_FEATURES,
206 DRM_PANFROST_PARAM_MMU_FEATURES,
207 DRM_PANFROST_PARAM_THREAD_FEATURES,
208 DRM_PANFROST_PARAM_MAX_THREADS,
209 DRM_PANFROST_PARAM_THREAD_MAX_WORKGROUP_SZ,
210 DRM_PANFROST_PARAM_THREAD_MAX_BARRIER_SZ,
211 DRM_PANFROST_PARAM_COHERENCY_FEATURES,
212 DRM_PANFROST_PARAM_TEXTURE_FEATURES0,
213 DRM_PANFROST_PARAM_TEXTURE_FEATURES1,
214 DRM_PANFROST_PARAM_TEXTURE_FEATURES2,
215 DRM_PANFROST_PARAM_TEXTURE_FEATURES3,
216 DRM_PANFROST_PARAM_JS_FEATURES0,
217 DRM_PANFROST_PARAM_JS_FEATURES1,
218 DRM_PANFROST_PARAM_JS_FEATURES2,
219 DRM_PANFROST_PARAM_JS_FEATURES3,
220 DRM_PANFROST_PARAM_JS_FEATURES4,
221 DRM_PANFROST_PARAM_JS_FEATURES5,
222 DRM_PANFROST_PARAM_JS_FEATURES6,
223 DRM_PANFROST_PARAM_JS_FEATURES7,
224 DRM_PANFROST_PARAM_JS_FEATURES8,
225 DRM_PANFROST_PARAM_JS_FEATURES9,
226 DRM_PANFROST_PARAM_JS_FEATURES10,
227 DRM_PANFROST_PARAM_JS_FEATURES11,
228 DRM_PANFROST_PARAM_JS_FEATURES12,
229 DRM_PANFROST_PARAM_JS_FEATURES13,
230 DRM_PANFROST_PARAM_JS_FEATURES14,
231 DRM_PANFROST_PARAM_JS_FEATURES15,
232 DRM_PANFROST_PARAM_NR_CORE_GROUPS,
233 DRM_PANFROST_PARAM_THREAD_TLS_ALLOC,
234 DRM_PANFROST_PARAM_AFBC_FEATURES,
235 DRM_PANFROST_PARAM_SYSTEM_TIMESTAMP,
236 DRM_PANFROST_PARAM_SYSTEM_TIMESTAMP_FREQUENCY,
237 DRM_PANFROST_PARAM_ALLOWED_JM_CTX_PRIORITIES,
238 DRM_PANFROST_PARAM_SELECTED_COHERENCY,
239};
240
241enum drm_panfrost_gpu_coherency {
242 DRM_PANFROST_GPU_COHERENCY_ACE_LITE = 0,
243 DRM_PANFROST_GPU_COHERENCY_ACE = 1,
244 DRM_PANFROST_GPU_COHERENCY_NONE = 31,
245};
246
247struct drm_panfrost_get_param {
248 __u32 param;
249 __u32 pad;
250 __u64 value;
251};
252
253/*
254 * Returns the offset for the BO in the GPU address space for this DRM fd.
255 * This is the same value returned by drm_panfrost_create_bo, if that was called
256 * from this DRM fd.
257 */
258struct drm_panfrost_get_bo_offset {
259 __u32 handle;
260 __u32 pad;
261 __u64 offset;
262};
263
264struct drm_panfrost_perfcnt_enable {
265 __u32 enable;
266 /*
267 * On bifrost we have 2 sets of counters, this parameter defines the
268 * one to track.
269 */
270 __u32 counterset;
271};
272
273struct drm_panfrost_perfcnt_dump {
274 __u64 buf_ptr;
275};
276
277/* madvise provides a way to tell the kernel in case a buffers contents
278 * can be discarded under memory pressure, which is useful for userspace
279 * bo cache where we want to optimistically hold on to buffer allocate
280 * and potential mmap, but allow the pages to be discarded under memory
281 * pressure.
282 *
283 * Typical usage would involve madvise(DONTNEED) when buffer enters BO
284 * cache, and madvise(WILLNEED) if trying to recycle buffer from BO cache.
285 * In the WILLNEED case, 'retained' indicates to userspace whether the
286 * backing pages still exist.
287 */
288#define PANFROST_MADV_WILLNEED 0 /* backing pages are needed, status returned in 'retained' */
289#define PANFROST_MADV_DONTNEED 1 /* backing pages not needed */
290
291struct drm_panfrost_madvise {
292 __u32 handle; /* in, GEM handle */
293 __u32 madv; /* in, PANFROST_MADV_x */
294 __u32 retained; /* out, whether backing store still exists */
295};
296
297/**
298 * struct drm_panfrost_set_label_bo - ioctl argument for labelling Panfrost BOs.
299 */
300struct drm_panfrost_set_label_bo {
301 /**
302 * @handle: Handle of the buffer object to label.
303 */
304 __u32 handle;
305 /**
306 * @pad: Must be zero.
307 */
308 __u32 pad;
309 /**
310 * @label: User pointer to a NUL-terminated string
311 *
312 * Length cannot be greater than 4096.
313 * NULL is permitted and means clear the label.
314 */
315 __u64 label;
316};
317
318/* Valid flags to pass to drm_panfrost_bo_sync_op */
319#define PANFROST_BO_SYNC_CPU_CACHE_FLUSH 0
320#define PANFROST_BO_SYNC_CPU_CACHE_FLUSH_AND_INVALIDATE 1
321
322/**
323 * struct drm_panthor_bo_flush_map_op - BO map sync op
324 */
325struct drm_panfrost_bo_sync_op {
326 /** @handle: Handle of the buffer object to sync. */
327 __u32 handle;
328
329 /** @type: Type of sync operation. */
330 __u32 type;
331
332 /**
333 * @offset: Offset into the BO at which the sync range starts.
334 *
335 * This will be rounded down to the nearest cache line as needed.
336 */
337 __u32 offset;
338
339 /**
340 * @size: Size of the range to sync
341 *
342 * @size + @offset will be rounded up to the nearest cache line as
343 * needed.
344 */
345 __u32 size;
346};
347
348/**
349 * struct drm_panfrost_sync_bo - ioctl argument for syncing BO maps
350 */
351struct drm_panfrost_sync_bo {
352 /** Array of struct drm_panfrost_bo_sync_op */
353 __u64 ops;
354
355 /** Number of BO sync ops */
356 __u32 op_count;
357
358 __u32 pad;
359};
360
361/** BO comes from a different subsystem. */
362#define DRM_PANFROST_BO_IS_IMPORTED (1 << 0)
363
364struct drm_panfrost_query_bo_info {
365 /** Handle of the object being queried. */
366 __u32 handle;
367
368 /** Extra flags that are not coming from the BO_CREATE ioctl(). */
369 __u32 extra_flags;
370
371 /** Flags passed at creation time. */
372 __u32 create_flags;
373
374 /** Will be zero on return. */
375 __u32 pad;
376};
377
378/* Definitions for coredump decoding in user space */
379#define PANFROSTDUMP_MAJOR 1
380#define PANFROSTDUMP_MINOR 0
381
382#define PANFROSTDUMP_MAGIC 0x464E4150 /* PANF */
383
384#define PANFROSTDUMP_BUF_REG 0
385#define PANFROSTDUMP_BUF_BOMAP (PANFROSTDUMP_BUF_REG + 1)
386#define PANFROSTDUMP_BUF_BO (PANFROSTDUMP_BUF_BOMAP + 1)
387#define PANFROSTDUMP_BUF_TRAILER (PANFROSTDUMP_BUF_BO + 1)
388
389/*
390 * This structure is the native endianness of the dumping machine, tools can
391 * detect the endianness by looking at the value in 'magic'.
392 */
393struct panfrost_dump_object_header {
394 __u32 magic;
395 __u32 type;
396 __u32 file_size;
397 __u32 file_offset;
398
399 union {
400 struct {
401 __u64 jc;
402 __u32 gpu_id;
403 __u32 major;
404 __u32 minor;
405 __u64 nbos;
406 } reghdr;
407
408 struct {
409 __u32 valid;
410 __u64 iova;
411 __u32 data[2];
412 } bomap;
413
414 /*
415 * Force same size in case we want to expand the header
416 * with new fields and also keep it 512-byte aligned
417 */
418
419 __u32 sizer[496];
420 };
421};
422
423/* Registers object, an array of these */
424struct panfrost_dump_registers {
425 __u32 reg;
426 __u32 value;
427};
428
429enum drm_panfrost_jm_ctx_priority {
430 /**
431 * @PANFROST_JM_CTX_PRIORITY_LOW: Low priority context.
432 */
433 PANFROST_JM_CTX_PRIORITY_LOW = 0,
434
435 /**
436 * @PANFROST_JM_CTX_PRIORITY_MEDIUM: Medium priority context.
437 */
438 PANFROST_JM_CTX_PRIORITY_MEDIUM,
439
440 /**
441 * @PANFROST_JM_CTX_PRIORITY_HIGH: High priority context.
442 *
443 * Requires CAP_SYS_NICE or DRM_MASTER.
444 */
445 PANFROST_JM_CTX_PRIORITY_HIGH,
446};
447
448struct drm_panfrost_jm_ctx_create {
449 /**
450 * @handle: Handle of the created JM context
451 */
452 __u32 handle;
453 /**
454 * @priority: Context priority (see enum drm_panfrost_jm_ctx_priority).
455 */
456 __u32 priority;
457};
458
459struct drm_panfrost_jm_ctx_destroy {
460 /**
461 * @handle: Handle of the JM context to destroy.
462 *
463 * Must be a valid context handle returned by DRM_IOCTL_PANTHOR_JM_CTX_CREATE.
464 */
465 __u32 handle;
466 /**
467 * @pad: Padding field, must be zero.
468 */
469 __u32 pad;
470};
471
472#if defined(__cplusplus)
473}
474#endif
475
476#endif /* _PANFROST_DRM_H_ */