2 * Copyright (C) 2015 Broadcom
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
10 #include "drm_gem_cma_helper.h"
13 struct drm_device
*dev
;
15 struct vc4_hdmi
*hdmi
;
17 struct vc4_crtc
*crtc
[3];
20 struct drm_fbdev_cma
*fbdev
;
22 struct vc4_hang_state
*hang_state
;
24 /* The kernel-space BO cache. Tracks buffers that have been
25 * unreferenced by all other users (refcounts of 0!) but not
26 * yet freed, so we can do cheap allocations.
29 /* Array of list heads for entries in the BO cache,
30 * based on number of pages, so we can do O(1) lookups
31 * in the cache when allocating.
33 struct list_head
*size_list
;
34 uint32_t size_list_size
;
36 /* List of all BOs in the cache, ordered by age, so we
37 * can do O(1) lookups when trying to free old
40 struct list_head time_list
;
41 struct work_struct time_work
;
42 struct timer_list time_timer
;
52 /* Protects bo_cache and the BO stats. */
55 /* Sequence number for the last job queued in job_list.
56 * Starts at 0 (no jobs emitted).
60 /* Sequence number for the last completed job on the GPU.
61 * Starts at 0 (no jobs completed).
63 uint64_t finished_seqno
;
65 /* List of all struct vc4_exec_info for jobs to be executed.
66 * The first job in the list is the one currently programmed
67 * into ct0ca/ct1ca for execution.
69 struct list_head job_list
;
70 /* List of the finished vc4_exec_infos waiting to be freed by
73 struct list_head job_done_list
;
74 /* Spinlock used to synchronize the job_list and seqno
75 * accesses between the IRQ handler and GEM ioctls.
78 wait_queue_head_t job_wait_queue
;
79 struct work_struct job_done_work
;
81 /* List of struct vc4_seqno_cb for callbacks to be made from a
82 * workqueue when the given seqno is passed.
84 struct list_head seqno_cb_list
;
86 /* The binner overflow memory that's currently set up in
87 * BPOA/BPOS registers. When overflow occurs and a new one is
88 * allocated, the previous one will be moved to
89 * vc4->current_exec's free list.
91 struct vc4_bo
*overflow_mem
;
92 struct work_struct overflow_mem_work
;
96 /* Mutex controlling the power refcount. */
97 struct mutex power_lock
;
100 struct timer_list timer
;
101 struct work_struct reset_work
;
104 struct semaphore async_modeset
;
107 static inline struct vc4_dev
*
108 to_vc4_dev(struct drm_device
*dev
)
110 return (struct vc4_dev
*)dev
->dev_private
;
114 struct drm_gem_cma_object base
;
116 /* seqno of the last job to render to this BO. */
119 /* List entry for the BO's position in either
120 * vc4_exec_info->unref_list or vc4_dev->bo_cache.time_list
122 struct list_head unref_head
;
124 /* Time in jiffies when the BO was put in vc4->bo_cache. */
125 unsigned long free_time
;
127 /* List entry for the BO's position in vc4_dev->bo_cache.size_list */
128 struct list_head size_head
;
130 /* Struct for shader validation state, if created by
131 * DRM_IOCTL_VC4_CREATE_SHADER_BO.
133 struct vc4_validated_shader_info
*validated_shader
;
136 static inline struct vc4_bo
*
137 to_vc4_bo(struct drm_gem_object
*bo
)
139 return (struct vc4_bo
*)bo
;
142 struct vc4_seqno_cb
{
143 struct work_struct work
;
145 void (*func
)(struct vc4_seqno_cb
*cb
);
150 struct platform_device
*pdev
;
155 struct platform_device
*pdev
;
161 struct drm_plane base
;
164 static inline struct vc4_plane
*
165 to_vc4_plane(struct drm_plane
*plane
)
167 return (struct vc4_plane
*)plane
;
170 enum vc4_encoder_type
{
171 VC4_ENCODER_TYPE_HDMI
,
172 VC4_ENCODER_TYPE_VEC
,
173 VC4_ENCODER_TYPE_DSI0
,
174 VC4_ENCODER_TYPE_DSI1
,
175 VC4_ENCODER_TYPE_SMI
,
176 VC4_ENCODER_TYPE_DPI
,
180 struct drm_encoder base
;
181 enum vc4_encoder_type type
;
185 static inline struct vc4_encoder
*
186 to_vc4_encoder(struct drm_encoder
*encoder
)
188 return container_of(encoder
, struct vc4_encoder
, base
);
191 #define V3D_READ(offset) readl(vc4->v3d->regs + offset)
192 #define V3D_WRITE(offset, val) writel(val, vc4->v3d->regs + offset)
193 #define HVS_READ(offset) readl(vc4->hvs->regs + offset)
194 #define HVS_WRITE(offset, val) writel(val, vc4->hvs->regs + offset)
196 struct vc4_exec_info
{
197 /* Sequence number for this bin/render job. */
200 /* Last current addresses the hardware was processing when the
201 * hangcheck timer checked on us.
203 uint32_t last_ct0ca
, last_ct1ca
;
205 /* Kernel-space copy of the ioctl arguments */
206 struct drm_vc4_submit_cl
*args
;
208 /* This is the array of BOs that were looked up at the start of exec.
209 * Command validation will use indices into this array.
211 struct drm_gem_cma_object
**bo
;
214 /* Pointers for our position in vc4->job_list */
215 struct list_head head
;
217 /* List of other BOs used in the job that need to be released
218 * once the job is complete.
220 struct list_head unref_list
;
222 /* Current unvalidated indices into @bo loaded by the non-hardware
223 * VC4_PACKET_GEM_HANDLES.
225 uint32_t bo_index
[2];
227 /* This is the BO where we store the validated command lists, shader
228 * records, and uniforms.
230 struct drm_gem_cma_object
*exec_bo
;
233 * This tracks the per-shader-record state (packet 64) that
234 * determines the length of the shader record and the offset
235 * it's expected to be found at. It gets read in from the
238 struct vc4_shader_state
{
240 /* Maximum vertex index referenced by any primitive using this
246 /** How many shader states the user declared they were using. */
247 uint32_t shader_state_size
;
248 /** How many shader state records the validator has seen. */
249 uint32_t shader_state_count
;
251 bool found_tile_binning_mode_config_packet
;
252 bool found_start_tile_binning_packet
;
253 bool found_increment_semaphore_packet
;
255 uint8_t bin_tiles_x
, bin_tiles_y
;
256 struct drm_gem_cma_object
*tile_bo
;
257 uint32_t tile_alloc_offset
;
260 * Computed addresses pointing into exec_bo where we start the
261 * bin thread (ct0) and render thread (ct1).
263 uint32_t ct0ca
, ct0ea
;
264 uint32_t ct1ca
, ct1ea
;
266 /* Pointer to the unvalidated bin CL (if present). */
269 /* Pointers to the shader recs. These paddr gets incremented as CL
270 * packets are relocated in validate_gl_shader_state, and the vaddrs
271 * (u and v) get incremented and size decremented as the shader recs
272 * themselves are validated.
276 uint32_t shader_rec_p
;
277 uint32_t shader_rec_size
;
279 /* Pointers to the uniform data. These pointers are incremented, and
280 * size decremented, as each batch of uniforms is uploaded.
285 uint32_t uniforms_size
;
288 static inline struct vc4_exec_info
*
289 vc4_first_job(struct vc4_dev
*vc4
)
291 if (list_empty(&vc4
->job_list
))
293 return list_first_entry(&vc4
->job_list
, struct vc4_exec_info
, head
);
297 * struct vc4_texture_sample_info - saves the offsets into the UBO for texture
300 * This will be used at draw time to relocate the reference to the texture
301 * contents in p0, and validate that the offset combined with
302 * width/height/stride/etc. from p1 and p2/p3 doesn't sample outside the BO.
303 * Note that the hardware treats unprovided config parameters as 0, so not all
304 * of them need to be set up for every texure sample, and we'll store ~0 as
305 * the offset to mark the unused ones.
307 * See the VC4 3D architecture guide page 41 ("Texture and Memory Lookup Unit
308 * Setup") for definitions of the texture parameters.
310 struct vc4_texture_sample_info
{
312 uint32_t p_offset
[4];
316 * struct vc4_validated_shader_info - information about validated shaders that
317 * needs to be used from command list validation.
319 * For a given shader, each time a shader state record references it, we need
320 * to verify that the shader doesn't read more uniforms than the shader state
321 * record's uniform BO pointer can provide, and we need to apply relocations
322 * and validate the shader state record's uniforms that define the texture
325 struct vc4_validated_shader_info
{
326 uint32_t uniforms_size
;
327 uint32_t uniforms_src_size
;
328 uint32_t num_texture_samples
;
329 struct vc4_texture_sample_info
*texture_samples
;
333 * _wait_for - magic (register) wait macro
335 * Does the right thing for modeset paths when run under kdgb or similar atomic
336 * contexts. Note that it's important that we check the condition again after
337 * having timed out, since the timeout could be due to preemption or similar and
338 * we've never had a chance to check the condition before the timeout.
340 #define _wait_for(COND, MS, W) ({ \
341 unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1; \
344 if (time_after(jiffies, timeout__)) { \
346 ret__ = -ETIMEDOUT; \
349 if (W && drm_can_sleep()) { \
358 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
361 struct drm_gem_object
*vc4_create_object(struct drm_device
*dev
, size_t size
);
362 void vc4_free_object(struct drm_gem_object
*gem_obj
);
363 struct vc4_bo
*vc4_bo_create(struct drm_device
*dev
, size_t size
,
365 int vc4_dumb_create(struct drm_file
*file_priv
,
366 struct drm_device
*dev
,
367 struct drm_mode_create_dumb
*args
);
368 struct dma_buf
*vc4_prime_export(struct drm_device
*dev
,
369 struct drm_gem_object
*obj
, int flags
);
370 int vc4_create_bo_ioctl(struct drm_device
*dev
, void *data
,
371 struct drm_file
*file_priv
);
372 int vc4_create_shader_bo_ioctl(struct drm_device
*dev
, void *data
,
373 struct drm_file
*file_priv
);
374 int vc4_mmap_bo_ioctl(struct drm_device
*dev
, void *data
,
375 struct drm_file
*file_priv
);
376 int vc4_get_hang_state_ioctl(struct drm_device
*dev
, void *data
,
377 struct drm_file
*file_priv
);
378 int vc4_mmap(struct file
*filp
, struct vm_area_struct
*vma
);
379 int vc4_prime_mmap(struct drm_gem_object
*obj
, struct vm_area_struct
*vma
);
380 void *vc4_prime_vmap(struct drm_gem_object
*obj
);
381 void vc4_bo_cache_init(struct drm_device
*dev
);
382 void vc4_bo_cache_destroy(struct drm_device
*dev
);
383 int vc4_bo_stats_debugfs(struct seq_file
*m
, void *arg
);
386 extern struct platform_driver vc4_crtc_driver
;
387 int vc4_enable_vblank(struct drm_device
*dev
, unsigned int crtc_id
);
388 void vc4_disable_vblank(struct drm_device
*dev
, unsigned int crtc_id
);
389 void vc4_cancel_page_flip(struct drm_crtc
*crtc
, struct drm_file
*file
);
390 int vc4_crtc_debugfs_regs(struct seq_file
*m
, void *arg
);
393 int vc4_debugfs_init(struct drm_minor
*minor
);
394 void vc4_debugfs_cleanup(struct drm_minor
*minor
);
397 void __iomem
*vc4_ioremap_regs(struct platform_device
*dev
, int index
);
400 void vc4_gem_init(struct drm_device
*dev
);
401 void vc4_gem_destroy(struct drm_device
*dev
);
402 int vc4_submit_cl_ioctl(struct drm_device
*dev
, void *data
,
403 struct drm_file
*file_priv
);
404 int vc4_wait_seqno_ioctl(struct drm_device
*dev
, void *data
,
405 struct drm_file
*file_priv
);
406 int vc4_wait_bo_ioctl(struct drm_device
*dev
, void *data
,
407 struct drm_file
*file_priv
);
408 void vc4_submit_next_job(struct drm_device
*dev
);
409 int vc4_wait_for_seqno(struct drm_device
*dev
, uint64_t seqno
,
410 uint64_t timeout_ns
, bool interruptible
);
411 void vc4_job_handle_completed(struct vc4_dev
*vc4
);
412 int vc4_queue_seqno_cb(struct drm_device
*dev
,
413 struct vc4_seqno_cb
*cb
, uint64_t seqno
,
414 void (*func
)(struct vc4_seqno_cb
*cb
));
417 extern struct platform_driver vc4_hdmi_driver
;
418 int vc4_hdmi_debugfs_regs(struct seq_file
*m
, void *unused
);
421 irqreturn_t
vc4_irq(int irq
, void *arg
);
422 void vc4_irq_preinstall(struct drm_device
*dev
);
423 int vc4_irq_postinstall(struct drm_device
*dev
);
424 void vc4_irq_uninstall(struct drm_device
*dev
);
425 void vc4_irq_reset(struct drm_device
*dev
);
428 extern struct platform_driver vc4_hvs_driver
;
429 void vc4_hvs_dump_state(struct drm_device
*dev
);
430 int vc4_hvs_debugfs_regs(struct seq_file
*m
, void *unused
);
433 int vc4_kms_load(struct drm_device
*dev
);
436 struct drm_plane
*vc4_plane_init(struct drm_device
*dev
,
437 enum drm_plane_type type
);
438 u32
vc4_plane_write_dlist(struct drm_plane
*plane
, u32 __iomem
*dlist
);
439 u32
vc4_plane_dlist_size(struct drm_plane_state
*state
);
440 void vc4_plane_async_set_fb(struct drm_plane
*plane
,
441 struct drm_framebuffer
*fb
);
444 extern struct platform_driver vc4_v3d_driver
;
445 int vc4_v3d_debugfs_ident(struct seq_file
*m
, void *unused
);
446 int vc4_v3d_debugfs_regs(struct seq_file
*m
, void *unused
);
450 vc4_validate_bin_cl(struct drm_device
*dev
,
453 struct vc4_exec_info
*exec
);
456 vc4_validate_shader_recs(struct drm_device
*dev
, struct vc4_exec_info
*exec
);
458 struct drm_gem_cma_object
*vc4_use_bo(struct vc4_exec_info
*exec
,
461 int vc4_get_rcl(struct drm_device
*dev
, struct vc4_exec_info
*exec
);
463 bool vc4_check_tex_size(struct vc4_exec_info
*exec
,
464 struct drm_gem_cma_object
*fbo
,
465 uint32_t offset
, uint8_t tiling_format
,
466 uint32_t width
, uint32_t height
, uint8_t cpp
);
468 /* vc4_validate_shader.c */
469 struct vc4_validated_shader_info
*
470 vc4_validate_shader(struct drm_gem_cma_object
*shader_obj
);