2 * Copyright (C) 2019 Alyssa Rosenzweig
3 * Copyright (C) 2014-2017 Broadcom
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 #include "drm-uapi/panfrost_drm.h"
30 #include "pan_context.h"
31 #include "util/hash_table.h"
32 #include "util/ralloc.h"
33 #include "util/u_format.h"
34 #include "util/u_pack_color.h"
36 #include "pandecode/decode.h"
38 static struct panfrost_batch
*
39 panfrost_create_batch(struct panfrost_context
*ctx
,
40 const struct pipe_framebuffer_state
*key
)
42 struct panfrost_batch
*batch
= rzalloc(ctx
, struct panfrost_batch
);
46 batch
->bos
= _mesa_set_create(batch
,
48 _mesa_key_pointer_equal
);
50 batch
->minx
= batch
->miny
= ~0;
51 batch
->maxx
= batch
->maxy
= 0;
52 batch
->transient_offset
= 0;
54 util_dynarray_init(&batch
->headers
, batch
);
55 util_dynarray_init(&batch
->gpu_headers
, batch
);
56 util_copy_framebuffer_state(&batch
->key
, key
);
62 panfrost_free_batch(struct panfrost_batch
*batch
)
67 struct panfrost_context
*ctx
= batch
->ctx
;
69 set_foreach(batch
->bos
, entry
) {
70 struct panfrost_bo
*bo
= (struct panfrost_bo
*)entry
->key
;
71 panfrost_bo_unreference(ctx
->base
.screen
, bo
);
74 _mesa_hash_table_remove_key(ctx
->batches
, &batch
->key
);
76 if (ctx
->batch
== batch
)
79 util_unreference_framebuffer_state(&batch
->key
);
83 static struct panfrost_batch
*
84 panfrost_get_batch(struct panfrost_context
*ctx
,
85 const struct pipe_framebuffer_state
*key
)
87 /* Lookup the job first */
88 struct hash_entry
*entry
= _mesa_hash_table_search(ctx
->batches
, key
);
93 /* Otherwise, let's create a job */
95 struct panfrost_batch
*batch
= panfrost_create_batch(ctx
, key
);
97 /* Save the created job */
98 _mesa_hash_table_insert(ctx
->batches
, &batch
->key
, batch
);
103 /* Get the job corresponding to the FBO we're currently rendering into */
105 struct panfrost_batch
*
106 panfrost_get_batch_for_fbo(struct panfrost_context
*ctx
)
108 /* If we're wallpapering, we special case to workaround
111 if (ctx
->wallpaper_batch
)
112 return ctx
->wallpaper_batch
;
114 /* If we already began rendering, use that */
117 assert(util_framebuffer_state_equal(&ctx
->batch
->key
,
118 &ctx
->pipe_framebuffer
));
122 /* If not, look up the job */
123 struct panfrost_batch
*batch
= panfrost_get_batch(ctx
,
124 &ctx
->pipe_framebuffer
);
126 /* Set this job as the current FBO job. Will be reset when updating the
127 * FB state and when submitting or releasing a job.
134 panfrost_batch_add_bo(struct panfrost_batch
*batch
, struct panfrost_bo
*bo
)
139 if (_mesa_set_search(batch
->bos
, bo
))
142 panfrost_bo_reference(bo
);
143 _mesa_set_add(batch
->bos
, bo
);
146 /* Returns the polygon list's GPU address if available, or otherwise allocates
147 * the polygon list. It's perfectly fast to use allocate/free BO directly,
148 * since we'll hit the BO cache and this is one-per-batch anyway. */
151 panfrost_batch_get_polygon_list(struct panfrost_batch
*batch
, unsigned size
)
153 if (batch
->polygon_list
) {
154 assert(batch
->polygon_list
->size
>= size
);
156 struct panfrost_screen
*screen
= pan_screen(batch
->ctx
->base
.screen
);
158 /* Create the BO as invisible, as there's no reason to map */
160 batch
->polygon_list
= panfrost_bo_create(screen
, size
,
162 panfrost_batch_add_bo(batch
, batch
->polygon_list
);
164 /* A BO reference has been retained by panfrost_batch_add_bo(),
165 * so we need to unreference it here if we want the BO to be
166 * automatically released when the batch is destroyed.
168 panfrost_bo_unreference(&screen
->base
, batch
->polygon_list
);
171 return batch
->polygon_list
->gpu
;
175 panfrost_batch_draw_wallpaper(struct panfrost_batch
*batch
)
177 /* Nothing to reload? TODO: MRT wallpapers */
178 if (batch
->key
.cbufs
[0] == NULL
)
181 /* Check if the buffer has any content on it worth preserving */
183 struct pipe_surface
*surf
= batch
->key
.cbufs
[0];
184 struct panfrost_resource
*rsrc
= pan_resource(surf
->texture
);
185 unsigned level
= surf
->u
.tex
.level
;
187 if (!rsrc
->slices
[level
].initialized
)
190 batch
->ctx
->wallpaper_batch
= batch
;
192 /* Clamp the rendering area to the damage extent. The
193 * KHR_partial_update() spec states that trying to render outside of
194 * the damage region is "undefined behavior", so we should be safe.
196 unsigned damage_width
= (rsrc
->damage
.extent
.maxx
- rsrc
->damage
.extent
.minx
);
197 unsigned damage_height
= (rsrc
->damage
.extent
.maxy
- rsrc
->damage
.extent
.miny
);
199 if (damage_width
&& damage_height
) {
200 panfrost_batch_intersection_scissor(batch
,
201 rsrc
->damage
.extent
.minx
,
202 rsrc
->damage
.extent
.miny
,
203 rsrc
->damage
.extent
.maxx
,
204 rsrc
->damage
.extent
.maxy
);
207 /* FIXME: Looks like aligning on a tile is not enough, but
208 * aligning on twice the tile size seems to works. We don't
209 * know exactly what happens here but this deserves extra
210 * investigation to figure it out.
212 batch
->minx
= batch
->minx
& ~((MALI_TILE_LENGTH
* 2) - 1);
213 batch
->miny
= batch
->miny
& ~((MALI_TILE_LENGTH
* 2) - 1);
214 batch
->maxx
= MIN2(ALIGN_POT(batch
->maxx
, MALI_TILE_LENGTH
* 2),
216 batch
->maxy
= MIN2(ALIGN_POT(batch
->maxy
, MALI_TILE_LENGTH
* 2),
219 struct pipe_scissor_state damage
;
220 struct pipe_box rects
[4];
222 /* Clamp the damage box to the rendering area. */
223 damage
.minx
= MAX2(batch
->minx
, rsrc
->damage
.biggest_rect
.x
);
224 damage
.miny
= MAX2(batch
->miny
, rsrc
->damage
.biggest_rect
.y
);
225 damage
.maxx
= MIN2(batch
->maxx
,
226 rsrc
->damage
.biggest_rect
.x
+
227 rsrc
->damage
.biggest_rect
.width
);
228 damage
.maxy
= MIN2(batch
->maxy
,
229 rsrc
->damage
.biggest_rect
.y
+
230 rsrc
->damage
.biggest_rect
.height
);
232 /* One damage rectangle means we can end up with at most 4 reload
234 * 1: left region, only exists if damage.x > 0
235 * 2: right region, only exists if damage.x + damage.width < fb->width
236 * 3: top region, only exists if damage.y > 0. The intersection with
237 * the left and right regions are dropped
238 * 4: bottom region, only exists if damage.y + damage.height < fb->height.
239 * The intersection with the left and right regions are dropped
241 * ____________________________
248 * |_______|___________|______|
250 u_box_2d(batch
->minx
, batch
->miny
, damage
.minx
- batch
->minx
,
251 batch
->maxy
- batch
->miny
, &rects
[0]);
252 u_box_2d(damage
.maxx
, batch
->miny
, batch
->maxx
- damage
.maxx
,
253 batch
->maxy
- batch
->miny
, &rects
[1]);
254 u_box_2d(damage
.minx
, batch
->miny
, damage
.maxx
- damage
.minx
,
255 damage
.miny
- batch
->miny
, &rects
[2]);
256 u_box_2d(damage
.minx
, damage
.maxy
, damage
.maxx
- damage
.minx
,
257 batch
->maxy
- damage
.maxy
, &rects
[3]);
259 for (unsigned i
= 0; i
< 4; i
++) {
260 /* Width and height are always >= 0 even if width is declared as a
261 * signed integer: u_box_2d() helper takes unsigned args and
262 * panfrost_set_damage_region() is taking care of clamping
265 if (!rects
[i
].width
|| !rects
[i
].height
)
268 /* Blit the wallpaper in */
269 panfrost_blit_wallpaper(batch
->ctx
, &rects
[i
]);
271 batch
->ctx
->wallpaper_batch
= NULL
;
275 panfrost_batch_submit_ioctl(struct panfrost_batch
*batch
,
276 mali_ptr first_job_desc
,
279 struct panfrost_context
*ctx
= batch
->ctx
;
280 struct pipe_context
*gallium
= (struct pipe_context
*) ctx
;
281 struct panfrost_screen
*screen
= pan_screen(gallium
->screen
);
282 struct drm_panfrost_submit submit
= {0,};
283 uint32_t *bo_handles
;
286 submit
.in_syncs
= (u64
) (uintptr_t) &ctx
->out_sync
;
287 submit
.in_sync_count
= 1;
289 submit
.out_sync
= ctx
->out_sync
;
291 submit
.jc
= first_job_desc
;
292 submit
.requirements
= reqs
;
294 bo_handles
= calloc(batch
->bos
->entries
, sizeof(*bo_handles
));
297 set_foreach(batch
->bos
, entry
) {
298 struct panfrost_bo
*bo
= (struct panfrost_bo
*)entry
->key
;
299 assert(bo
->gem_handle
> 0);
300 bo_handles
[submit
.bo_handle_count
++] = bo
->gem_handle
;
303 submit
.bo_handles
= (u64
) (uintptr_t) bo_handles
;
304 ret
= drmIoctl(screen
->fd
, DRM_IOCTL_PANFROST_SUBMIT
, &submit
);
307 fprintf(stderr
, "Error submitting: %m\n");
311 /* Trace the job if we're doing that */
312 if (pan_debug
& PAN_DBG_TRACE
) {
313 /* Wait so we can get errors reported back */
314 drmSyncobjWait(screen
->fd
, &ctx
->out_sync
, 1, INT64_MAX
, 0, NULL
);
315 pandecode_jc(submit
.jc
, FALSE
);
322 panfrost_batch_submit_jobs(struct panfrost_batch
*batch
)
324 struct panfrost_context
*ctx
= batch
->ctx
;
325 bool has_draws
= batch
->first_job
.gpu
;
328 panfrost_batch_add_bo(batch
, ctx
->scratchpad
);
329 panfrost_batch_add_bo(batch
, ctx
->tiler_heap
);
332 ret
= panfrost_batch_submit_ioctl(batch
, batch
->first_job
.gpu
, 0);
336 if (batch
->first_tiler
.gpu
|| batch
->clear
) {
337 mali_ptr fragjob
= panfrost_fragment_job(batch
, has_draws
);
339 ret
= panfrost_batch_submit_ioctl(batch
, fragjob
, PANFROST_JD_REQ_FS
);
347 panfrost_batch_submit(struct panfrost_batch
*batch
)
351 struct panfrost_context
*ctx
= batch
->ctx
;
355 if (!batch
->last_job
.gpu
&& !batch
->clear
)
358 if (!batch
->clear
&& batch
->last_tiler
.gpu
)
359 panfrost_batch_draw_wallpaper(batch
);
361 panfrost_scoreboard_link_batch(batch
);
363 ret
= panfrost_batch_submit_jobs(batch
);
366 fprintf(stderr
, "panfrost_batch_submit failed: %d\n", ret
);
369 /* If this is the bound batch, the panfrost_context parameters are
370 * relevant so submitting it invalidates those paramaters, but if it's
371 * not bound, the context parameters are for some other batch so we
372 * can't invalidate them.
374 if (ctx
->batch
== batch
)
375 panfrost_invalidate_frame(ctx
);
377 /* The job has been submitted, let's invalidate the current FBO job
380 assert(!ctx
->batch
|| batch
== ctx
->batch
);
383 /* We always stall the pipeline for correct results since pipelined
384 * rendering is quite broken right now (to be fixed by the panfrost_job
385 * refactor, just take the perf hit for correctness)
387 drmSyncobjWait(pan_screen(ctx
->base
.screen
)->fd
, &ctx
->out_sync
, 1,
389 panfrost_free_batch(batch
);
393 panfrost_batch_set_requirements(struct panfrost_batch
*batch
)
395 struct panfrost_context
*ctx
= batch
->ctx
;
397 if (ctx
->rasterizer
&& ctx
->rasterizer
->base
.multisample
)
398 batch
->requirements
|= PAN_REQ_MSAA
;
400 if (ctx
->depth_stencil
&& ctx
->depth_stencil
->depth
.writemask
)
401 batch
->requirements
|= PAN_REQ_DEPTH_WRITE
;
404 /* Helper to smear a 32-bit color across 128-bit components */
407 pan_pack_color_32(uint32_t *packed
, uint32_t v
)
409 for (unsigned i
= 0; i
< 4; ++i
)
414 pan_pack_color_64(uint32_t *packed
, uint32_t lo
, uint32_t hi
)
416 for (unsigned i
= 0; i
< 4; i
+= 2) {
423 pan_pack_color(uint32_t *packed
, const union pipe_color_union
*color
, enum pipe_format format
)
425 /* Alpha magicked to 1.0 if there is no alpha */
427 bool has_alpha
= util_format_has_alpha(format
);
428 float clear_alpha
= has_alpha
? color
->f
[3] : 1.0f
;
430 /* Packed color depends on the framebuffer format */
432 const struct util_format_description
*desc
=
433 util_format_description(format
);
435 if (util_format_is_rgba8_variant(desc
)) {
436 pan_pack_color_32(packed
,
437 (float_to_ubyte(clear_alpha
) << 24) |
438 (float_to_ubyte(color
->f
[2]) << 16) |
439 (float_to_ubyte(color
->f
[1]) << 8) |
440 (float_to_ubyte(color
->f
[0]) << 0));
441 } else if (format
== PIPE_FORMAT_B5G6R5_UNORM
) {
442 /* First, we convert the components to R5, G6, B5 separately */
443 unsigned r5
= CLAMP(color
->f
[0], 0.0, 1.0) * 31.0;
444 unsigned g6
= CLAMP(color
->f
[1], 0.0, 1.0) * 63.0;
445 unsigned b5
= CLAMP(color
->f
[2], 0.0, 1.0) * 31.0;
447 /* Then we pack into a sparse u32. TODO: Why these shifts? */
448 pan_pack_color_32(packed
, (b5
<< 25) | (g6
<< 14) | (r5
<< 5));
449 } else if (format
== PIPE_FORMAT_B4G4R4A4_UNORM
) {
450 /* We scale the components against 0xF0 (=240.0), rather than 0xFF */
451 unsigned r4
= CLAMP(color
->f
[0], 0.0, 1.0) * 240.0;
452 unsigned g4
= CLAMP(color
->f
[1], 0.0, 1.0) * 240.0;
453 unsigned b4
= CLAMP(color
->f
[2], 0.0, 1.0) * 240.0;
454 unsigned a4
= CLAMP(clear_alpha
, 0.0, 1.0) * 240.0;
456 /* Pack on *byte* intervals */
457 pan_pack_color_32(packed
, (a4
<< 24) | (b4
<< 16) | (g4
<< 8) | r4
);
458 } else if (format
== PIPE_FORMAT_B5G5R5A1_UNORM
) {
459 /* Scale as expected but shift oddly */
460 unsigned r5
= round(CLAMP(color
->f
[0], 0.0, 1.0)) * 31.0;
461 unsigned g5
= round(CLAMP(color
->f
[1], 0.0, 1.0)) * 31.0;
462 unsigned b5
= round(CLAMP(color
->f
[2], 0.0, 1.0)) * 31.0;
463 unsigned a1
= round(CLAMP(clear_alpha
, 0.0, 1.0)) * 1.0;
465 pan_pack_color_32(packed
, (a1
<< 31) | (b5
<< 25) | (g5
<< 15) | (r5
<< 5));
467 /* Try Gallium's generic default path. Doesn't work for all
468 * formats but it's a good guess. */
470 union util_color out
;
472 if (util_format_is_pure_integer(format
)) {
473 memcpy(out
.ui
, color
->ui
, 16);
475 util_pack_color(color
->f
, format
, &out
);
478 unsigned size
= util_format_get_blocksize(format
);
481 unsigned b
= out
.ui
[0];
482 unsigned s
= b
| (b
<< 8);
483 pan_pack_color_32(packed
, s
| (s
<< 16));
484 } else if (size
== 2)
485 pan_pack_color_32(packed
, out
.ui
[0] | (out
.ui
[0] << 16));
487 pan_pack_color_32(packed
, out
.ui
[0]);
489 pan_pack_color_64(packed
, out
.ui
[0], out
.ui
[1]);
491 memcpy(packed
, out
.ui
, 16);
493 unreachable("Unknown generic format size packing clear colour");
498 panfrost_batch_clear(struct panfrost_batch
*batch
,
500 const union pipe_color_union
*color
,
501 double depth
, unsigned stencil
)
503 struct panfrost_context
*ctx
= batch
->ctx
;
505 if (buffers
& PIPE_CLEAR_COLOR
) {
506 for (unsigned i
= 0; i
< PIPE_MAX_COLOR_BUFS
; ++i
) {
507 if (!(buffers
& (PIPE_CLEAR_COLOR0
<< i
)))
510 enum pipe_format format
= ctx
->pipe_framebuffer
.cbufs
[i
]->format
;
511 pan_pack_color(batch
->clear_color
[i
], color
, format
);
515 if (buffers
& PIPE_CLEAR_DEPTH
) {
516 batch
->clear_depth
= depth
;
519 if (buffers
& PIPE_CLEAR_STENCIL
) {
520 batch
->clear_stencil
= stencil
;
523 batch
->clear
|= buffers
;
525 /* Clearing affects the entire framebuffer (by definition -- this is
526 * the Gallium clear callback, which clears the whole framebuffer. If
527 * the scissor test were enabled from the GL side, the state tracker
528 * would emit a quad instead and we wouldn't go down this code path) */
530 panfrost_batch_union_scissor(batch
, 0, 0,
531 ctx
->pipe_framebuffer
.width
,
532 ctx
->pipe_framebuffer
.height
);
536 panfrost_batch_compare(const void *a
, const void *b
)
538 return util_framebuffer_state_equal(a
, b
);
542 panfrost_batch_hash(const void *key
)
544 return _mesa_hash_data(key
, sizeof(struct pipe_framebuffer_state
));
547 /* Given a new bounding rectangle (scissor), let the job cover the union of the
548 * new and old bounding rectangles */
551 panfrost_batch_union_scissor(struct panfrost_batch
*batch
,
552 unsigned minx
, unsigned miny
,
553 unsigned maxx
, unsigned maxy
)
555 batch
->minx
= MIN2(batch
->minx
, minx
);
556 batch
->miny
= MIN2(batch
->miny
, miny
);
557 batch
->maxx
= MAX2(batch
->maxx
, maxx
);
558 batch
->maxy
= MAX2(batch
->maxy
, maxy
);
562 panfrost_batch_intersection_scissor(struct panfrost_batch
*batch
,
563 unsigned minx
, unsigned miny
,
564 unsigned maxx
, unsigned maxy
)
566 batch
->minx
= MAX2(batch
->minx
, minx
);
567 batch
->miny
= MAX2(batch
->miny
, miny
);
568 batch
->maxx
= MIN2(batch
->maxx
, maxx
);
569 batch
->maxy
= MIN2(batch
->maxy
, maxy
);
572 /* Are we currently rendering to the screen (rather than an FBO)? */
575 panfrost_batch_is_scanout(struct panfrost_batch
*batch
)
577 /* If there is no color buffer, it's an FBO */
578 if (batch
->key
.nr_cbufs
!= 1)
581 /* If we're too early that no framebuffer was sent, it's scanout */
582 if (!batch
->key
.cbufs
[0])
585 return batch
->key
.cbufs
[0]->texture
->bind
& PIPE_BIND_DISPLAY_TARGET
||
586 batch
->key
.cbufs
[0]->texture
->bind
& PIPE_BIND_SCANOUT
||
587 batch
->key
.cbufs
[0]->texture
->bind
& PIPE_BIND_SHARED
;
591 panfrost_batch_init(struct panfrost_context
*ctx
)
593 ctx
->batches
= _mesa_hash_table_create(ctx
,
595 panfrost_batch_compare
);