2 * Copyright (C) 2008 VMware, Inc.
3 * Copyright (C) 2014 Broadcom
4 * Copyright (C) 2018-2019 Alyssa Rosenzweig
5 * Copyright (C) 2019 Collabora, Ltd.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice (including the next
15 * paragraph) shall be included in all copies or substantial portions of the
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * Authors (Collabora):
27 * Tomeu Vizoso <tomeu.vizoso@collabora.com>
28 * Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
34 #include "drm-uapi/drm_fourcc.h"
36 #include "state_tracker/winsys_handle.h"
37 #include "util/format/u_format.h"
38 #include "util/u_memory.h"
39 #include "util/u_surface.h"
40 #include "util/u_transfer.h"
41 #include "util/u_transfer_helper.h"
42 #include "util/u_gen_mipmap.h"
45 #include "pan_context.h"
46 #include "pan_screen.h"
47 #include "pan_resource.h"
49 #include "pan_tiling.h"
50 #include "panfrost-quirks.h"
53 panfrost_resource_reset_damage(struct panfrost_resource
*pres
)
55 /* We set the damage extent to the full resource size but keep the
56 * damage box empty so that the FB content is reloaded by default.
58 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
59 pres
->damage
.extent
.maxx
= pres
->base
.width0
;
60 pres
->damage
.extent
.maxy
= pres
->base
.height0
;
63 static struct pipe_resource
*
64 panfrost_resource_from_handle(struct pipe_screen
*pscreen
,
65 const struct pipe_resource
*templat
,
66 struct winsys_handle
*whandle
,
69 struct panfrost_screen
*screen
= pan_screen(pscreen
);
70 struct panfrost_resource
*rsc
;
71 struct pipe_resource
*prsc
;
73 assert(whandle
->type
== WINSYS_HANDLE_TYPE_FD
);
75 rsc
= rzalloc(pscreen
, struct panfrost_resource
);
83 pipe_reference_init(&prsc
->reference
, 1);
84 prsc
->screen
= pscreen
;
86 rsc
->bo
= panfrost_bo_import(screen
, whandle
->handle
);
87 rsc
->internal_format
= templat
->format
;
88 rsc
->layout
= MALI_TEXTURE_LINEAR
;
89 rsc
->slices
[0].stride
= whandle
->stride
;
90 rsc
->slices
[0].offset
= whandle
->offset
;
91 rsc
->slices
[0].initialized
= true;
92 panfrost_resource_reset_damage(rsc
);
96 renderonly_create_gpu_import_for_resource(prsc
, screen
->ro
, NULL
);
97 /* failure is expected in some cases.. */
104 panfrost_resource_get_handle(struct pipe_screen
*pscreen
,
105 struct pipe_context
*ctx
,
106 struct pipe_resource
*pt
,
107 struct winsys_handle
*handle
,
110 struct panfrost_screen
*screen
= pan_screen(pscreen
);
111 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
112 struct renderonly_scanout
*scanout
= rsrc
->scanout
;
114 handle
->modifier
= DRM_FORMAT_MOD_INVALID
;
116 if (handle
->type
== WINSYS_HANDLE_TYPE_SHARED
) {
118 } else if (handle
->type
== WINSYS_HANDLE_TYPE_KMS
) {
119 if (renderonly_get_handle(scanout
, handle
))
122 handle
->handle
= rsrc
->bo
->gem_handle
;
123 handle
->stride
= rsrc
->slices
[0].stride
;
124 handle
->offset
= rsrc
->slices
[0].offset
;
126 } else if (handle
->type
== WINSYS_HANDLE_TYPE_FD
) {
128 struct drm_prime_handle args
= {
129 .handle
= scanout
->handle
,
130 .flags
= DRM_CLOEXEC
,
133 int ret
= drmIoctl(screen
->ro
->kms_fd
, DRM_IOCTL_PRIME_HANDLE_TO_FD
, &args
);
137 handle
->stride
= scanout
->stride
;
138 handle
->handle
= args
.fd
;
142 int fd
= panfrost_bo_export(rsrc
->bo
);
148 handle
->stride
= rsrc
->slices
[0].stride
;
149 handle
->offset
= rsrc
->slices
[0].offset
;
158 panfrost_flush_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
160 //DBG("TODO %s\n", __func__);
163 static struct pipe_surface
*
164 panfrost_create_surface(struct pipe_context
*pipe
,
165 struct pipe_resource
*pt
,
166 const struct pipe_surface
*surf_tmpl
)
168 struct pipe_surface
*ps
= NULL
;
170 ps
= rzalloc(pipe
, struct pipe_surface
);
173 pipe_reference_init(&ps
->reference
, 1);
174 pipe_resource_reference(&ps
->texture
, pt
);
176 ps
->format
= surf_tmpl
->format
;
178 if (pt
->target
!= PIPE_BUFFER
) {
179 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
180 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
181 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
182 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
183 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
184 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
186 /* setting width as number of elements should get us correct renderbuffer width */
187 ps
->width
= surf_tmpl
->u
.buf
.last_element
- surf_tmpl
->u
.buf
.first_element
+ 1;
188 ps
->height
= pt
->height0
;
189 ps
->u
.buf
.first_element
= surf_tmpl
->u
.buf
.first_element
;
190 ps
->u
.buf
.last_element
= surf_tmpl
->u
.buf
.last_element
;
191 assert(ps
->u
.buf
.first_element
<= ps
->u
.buf
.last_element
);
192 assert(ps
->u
.buf
.last_element
< ps
->width
);
200 panfrost_surface_destroy(struct pipe_context
*pipe
,
201 struct pipe_surface
*surf
)
203 assert(surf
->texture
);
204 pipe_resource_reference(&surf
->texture
, NULL
);
208 static struct pipe_resource
*
209 panfrost_create_scanout_res(struct pipe_screen
*screen
,
210 const struct pipe_resource
*template)
212 struct panfrost_screen
*pscreen
= pan_screen(screen
);
213 struct pipe_resource scanout_templat
= *template;
214 struct renderonly_scanout
*scanout
;
215 struct winsys_handle handle
;
216 struct pipe_resource
*res
;
218 scanout
= renderonly_scanout_for_resource(&scanout_templat
,
219 pscreen
->ro
, &handle
);
223 assert(handle
.type
== WINSYS_HANDLE_TYPE_FD
);
224 /* TODO: handle modifiers? */
225 res
= screen
->resource_from_handle(screen
, template, &handle
,
226 PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE
);
227 close(handle
.handle
);
231 struct panfrost_resource
*pres
= pan_resource(res
);
233 pres
->scanout
= scanout
;
238 /* Setup the mip tree given a particular layout, possibly with checksumming */
241 panfrost_setup_slices(struct panfrost_resource
*pres
, size_t *bo_size
)
243 struct pipe_resource
*res
= &pres
->base
;
244 unsigned width
= res
->width0
;
245 unsigned height
= res
->height0
;
246 unsigned depth
= res
->depth0
;
247 unsigned bytes_per_pixel
= util_format_get_blocksize(res
->format
);
251 /* Tiled operates blockwise; linear is packed. Also, anything
252 * we render to has to be tile-aligned. Maybe not strictly
253 * necessary, but we're not *that* pressed for memory and it
254 * makes code a lot simpler */
256 bool renderable
= res
->bind
&
257 (PIPE_BIND_RENDER_TARGET
| PIPE_BIND_DEPTH_STENCIL
);
258 bool afbc
= pres
->layout
== MALI_TEXTURE_AFBC
;
259 bool tiled
= pres
->layout
== MALI_TEXTURE_TILED
;
260 bool should_align
= renderable
|| tiled
;
262 /* We don't know how to specify a 2D stride for 3D textures */
264 bool can_align_stride
=
265 res
->target
!= PIPE_TEXTURE_3D
;
267 should_align
&= can_align_stride
;
270 unsigned size_2d
= 0;
272 for (unsigned l
= 0; l
<= res
->last_level
; ++l
) {
273 struct panfrost_slice
*slice
= &pres
->slices
[l
];
275 unsigned effective_width
= width
;
276 unsigned effective_height
= height
;
277 unsigned effective_depth
= depth
;
280 effective_width
= ALIGN_POT(effective_width
, 16);
281 effective_height
= ALIGN_POT(effective_height
, 16);
283 /* We don't need to align depth */
286 /* Align levels to cache-line as a performance improvement for
287 * linear/tiled and as a requirement for AFBC */
289 offset
= ALIGN_POT(offset
, 64);
291 slice
->offset
= offset
;
293 /* Compute the would-be stride */
294 unsigned stride
= bytes_per_pixel
* effective_width
;
296 if (util_format_is_compressed(res
->format
))
299 /* ..but cache-line align it for performance */
300 if (can_align_stride
&& pres
->layout
== MALI_TEXTURE_LINEAR
)
301 stride
= ALIGN_POT(stride
, 64);
303 slice
->stride
= stride
;
305 unsigned slice_one_size
= slice
->stride
* effective_height
;
306 unsigned slice_full_size
= slice_one_size
* effective_depth
;
308 slice
->size0
= slice_one_size
;
310 /* Report 2D size for 3D texturing */
313 size_2d
= slice_one_size
;
315 /* Compute AFBC sizes if necessary */
318 panfrost_afbc_header_size(width
, height
);
320 offset
+= slice
->header_size
;
323 offset
+= slice_full_size
;
325 /* Add a checksum region if necessary */
326 if (pres
->checksummed
) {
327 slice
->checksum_offset
= offset
;
329 unsigned size
= panfrost_compute_checksum_size(
330 slice
, width
, height
);
335 width
= u_minify(width
, 1);
336 height
= u_minify(height
, 1);
337 depth
= u_minify(depth
, 1);
340 assert(res
->array_size
);
342 if (res
->target
!= PIPE_TEXTURE_3D
) {
343 /* Arrays and cubemaps have the entire miptree duplicated */
345 pres
->cubemap_stride
= ALIGN_POT(offset
, 64);
346 *bo_size
= ALIGN_POT(pres
->cubemap_stride
* res
->array_size
, 4096);
348 /* 3D strides across the 2D layers */
349 assert(res
->array_size
== 1);
351 pres
->cubemap_stride
= size_2d
;
352 *bo_size
= ALIGN_POT(offset
, 4096);
357 panfrost_resource_create_bo(struct panfrost_screen
*screen
, struct panfrost_resource
*pres
)
359 struct pipe_resource
*res
= &pres
->base
;
361 /* Based on the usage, figure out what storing will be used. There are
364 * Linear: the basic format, bad for memory bandwidth, bad for cache
365 * use. Zero-copy, though. Renderable.
367 * Tiled: Not compressed, but cache-optimized. Expensive to write into
368 * (due to software tiling), but cheap to sample from. Ideal for most
371 * AFBC: Compressed and renderable (so always desirable for non-scanout
372 * rendertargets). Cheap to sample from. The format is black box, so we
373 * can't read/write from software.
375 * Tiling textures is almost always faster, unless we only use it once.
376 * Only a few types of resources can be tiled, ensure the bind is only
377 * (a combination of) one of the following */
379 const unsigned valid_binding
=
380 PIPE_BIND_DEPTH_STENCIL
|
381 PIPE_BIND_RENDER_TARGET
|
382 PIPE_BIND_BLENDABLE
|
383 PIPE_BIND_SAMPLER_VIEW
|
384 PIPE_BIND_DISPLAY_TARGET
;
386 unsigned bpp
= util_format_get_blocksizebits(res
->format
);
387 bool is_2d
= (res
->target
== PIPE_TEXTURE_2D
);
388 bool is_sane_bpp
= bpp
== 8 || bpp
== 16 || bpp
== 32 || bpp
== 64 || bpp
== 128;
389 bool should_tile
= (res
->usage
!= PIPE_USAGE_STREAM
);
390 bool must_tile
= (res
->bind
& PIPE_BIND_DEPTH_STENCIL
) && (screen
->quirks
& MIDGARD_SFBD
);
391 bool can_tile
= is_2d
&& is_sane_bpp
&& ((res
->bind
& ~valid_binding
) == 0);
393 /* FBOs we would like to checksum, if at all possible */
394 bool can_checksum
= !(res
->bind
& ~valid_binding
);
395 bool should_checksum
= res
->bind
& PIPE_BIND_RENDER_TARGET
;
397 pres
->checksummed
= can_checksum
&& should_checksum
;
399 /* Set the layout appropriately */
400 assert(!(must_tile
&& !can_tile
)); /* must_tile => can_tile */
401 pres
->layout
= ((can_tile
&& should_tile
) || must_tile
) ? MALI_TEXTURE_TILED
: MALI_TEXTURE_LINEAR
;
405 panfrost_setup_slices(pres
, &bo_size
);
407 /* We create a BO immediately but don't bother mapping, since we don't
408 * care to map e.g. FBOs which the CPU probably won't touch */
409 pres
->bo
= panfrost_bo_create(screen
, bo_size
, PAN_BO_DELAY_MMAP
);
413 panfrost_resource_set_damage_region(struct pipe_screen
*screen
,
414 struct pipe_resource
*res
,
416 const struct pipe_box
*rects
)
418 struct panfrost_resource
*pres
= pan_resource(res
);
419 struct pipe_box
*damage_rect
= &pres
->damage
.biggest_rect
;
420 struct pipe_scissor_state
*damage_extent
= &pres
->damage
.extent
;
424 panfrost_resource_reset_damage(pres
);
428 /* We keep track of 2 different things here:
429 * 1 the damage extent: the quad including all damage regions. Will be
430 * used restrict the rendering area
431 * 2 the biggest damage rectangle: when there are more than one damage
432 * rect we keep the biggest one and will generate 4 wallpaper quads
433 * out of it (see panfrost_draw_wallpaper() for more details). We
434 * might want to do something smarter at some point.
436 * _________________________________
438 * | _________________________ |
439 * | | rect1| _________| |
440 * | |______|_____ | rect 3: | |
441 * | | | rect2 | | biggest | |
442 * | | |_______| | rect | |
443 * | |_______________|_________| |
445 * |_______________________________|
448 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
449 damage_extent
->minx
= 0xffff;
450 damage_extent
->miny
= 0xffff;
451 for (i
= 0; i
< nrects
; i
++) {
452 int x
= rects
[i
].x
, w
= rects
[i
].width
, h
= rects
[i
].height
;
453 int y
= res
->height0
- (rects
[i
].y
+ h
);
455 /* Clamp x,y,w,h to prevent negative values. */
467 if (damage_rect
->width
* damage_rect
->height
< w
* h
)
468 u_box_2d(x
, y
, w
, h
, damage_rect
);
470 damage_extent
->minx
= MIN2(damage_extent
->minx
, x
);
471 damage_extent
->miny
= MIN2(damage_extent
->miny
, y
);
472 damage_extent
->maxx
= MAX2(damage_extent
->maxx
,
473 MIN2(x
+ w
, res
->width0
));
474 damage_extent
->maxy
= MAX2(damage_extent
->maxy
,
475 MIN2(y
+ h
, res
->height0
));
479 static struct pipe_resource
*
480 panfrost_resource_create(struct pipe_screen
*screen
,
481 const struct pipe_resource
*template)
483 /* Make sure we're familiar */
484 switch (template->target
) {
486 case PIPE_TEXTURE_1D
:
487 case PIPE_TEXTURE_2D
:
488 case PIPE_TEXTURE_3D
:
489 case PIPE_TEXTURE_CUBE
:
490 case PIPE_TEXTURE_RECT
:
491 case PIPE_TEXTURE_2D_ARRAY
:
494 DBG("Unknown texture target %d\n", template->target
);
499 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
))
500 return panfrost_create_scanout_res(screen
, template);
502 struct panfrost_resource
*so
= rzalloc(screen
, struct panfrost_resource
);
503 struct panfrost_screen
*pscreen
= (struct panfrost_screen
*) screen
;
505 so
->base
= *template;
506 so
->base
.screen
= screen
;
507 so
->internal_format
= template->format
;
509 pipe_reference_init(&so
->base
.reference
, 1);
511 util_range_init(&so
->valid_buffer_range
);
513 panfrost_resource_create_bo(pscreen
, so
);
514 panfrost_resource_reset_damage(so
);
516 if (template->bind
& PIPE_BIND_INDEX_BUFFER
)
517 so
->index_cache
= rzalloc(so
, struct panfrost_minmax_cache
);
519 return (struct pipe_resource
*)so
;
523 panfrost_resource_destroy(struct pipe_screen
*screen
,
524 struct pipe_resource
*pt
)
526 struct panfrost_screen
*pscreen
= pan_screen(screen
);
527 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
530 renderonly_scanout_destroy(rsrc
->scanout
, pscreen
->ro
);
533 panfrost_bo_unreference(rsrc
->bo
);
535 util_range_destroy(&rsrc
->valid_buffer_range
);
541 panfrost_transfer_map(struct pipe_context
*pctx
,
542 struct pipe_resource
*resource
,
544 unsigned usage
, /* a combination of PIPE_TRANSFER_x */
545 const struct pipe_box
*box
,
546 struct pipe_transfer
**out_transfer
)
548 struct panfrost_context
*ctx
= pan_context(pctx
);
549 int bytes_per_pixel
= util_format_get_blocksize(resource
->format
);
550 struct panfrost_resource
*rsrc
= pan_resource(resource
);
551 struct panfrost_bo
*bo
= rsrc
->bo
;
553 struct panfrost_gtransfer
*transfer
= rzalloc(pctx
, struct panfrost_gtransfer
);
554 transfer
->base
.level
= level
;
555 transfer
->base
.usage
= usage
;
556 transfer
->base
.box
= *box
;
558 pipe_resource_reference(&transfer
->base
.resource
, resource
);
560 *out_transfer
= &transfer
->base
;
562 /* If we haven't already mmaped, now's the time */
563 panfrost_bo_mmap(bo
);
565 if (usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
) {
566 /* If the BO is used by one of the pending batches or if it's
567 * not ready yet (still accessed by one of the already flushed
568 * batches), we try to allocate a new one to avoid waiting.
570 if (panfrost_pending_batches_access_bo(ctx
, bo
) ||
571 !panfrost_bo_wait(bo
, 0, PAN_BO_ACCESS_RW
)) {
572 struct panfrost_screen
*screen
= pan_screen(pctx
->screen
);
573 /* We want the BO to be MMAPed. */
574 uint32_t flags
= bo
->flags
& ~PAN_BO_DELAY_MMAP
;
575 struct panfrost_bo
*newbo
= NULL
;
577 /* When the BO has been imported/exported, we can't
578 * replace it by another one, otherwise the
579 * importer/exporter wouldn't see the change we're
582 if (!(bo
->flags
& (PAN_BO_IMPORTED
| PAN_BO_EXPORTED
)))
583 newbo
= panfrost_bo_create(screen
, bo
->size
,
587 panfrost_bo_unreference(bo
);
591 uint32_t access
= PAN_BO_ACCESS_RW
;
593 /* Allocation failed or was impossible, let's
594 * fall back on a flush+wait.
596 panfrost_flush_batches_accessing_bo(ctx
, bo
,
598 panfrost_bo_wait(bo
, INT64_MAX
, access
);
601 } else if ((usage
& PIPE_TRANSFER_WRITE
)
602 && resource
->target
== PIPE_BUFFER
603 && !util_ranges_intersect(&rsrc
->valid_buffer_range
, box
->x
, box
->x
+ box
->width
)) {
604 /* No flush for writes to uninitialized */
605 } else if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
606 if (usage
& PIPE_TRANSFER_WRITE
) {
607 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_RW
);
608 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_RW
);
609 } else if (usage
& PIPE_TRANSFER_READ
) {
610 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_WRITE
);
611 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_WRITE
);
615 if (rsrc
->layout
!= MALI_TEXTURE_LINEAR
) {
616 /* Non-linear resources need to be indirectly mapped */
618 if (usage
& PIPE_TRANSFER_MAP_DIRECTLY
)
621 transfer
->base
.stride
= box
->width
* bytes_per_pixel
;
622 transfer
->base
.layer_stride
= transfer
->base
.stride
* box
->height
;
623 transfer
->map
= rzalloc_size(transfer
, transfer
->base
.layer_stride
* box
->depth
);
624 assert(box
->depth
== 1);
626 if ((usage
& PIPE_TRANSFER_READ
) && rsrc
->slices
[level
].initialized
) {
627 if (rsrc
->layout
== MALI_TEXTURE_AFBC
) {
628 DBG("Unimplemented: reads from AFBC");
629 } else if (rsrc
->layout
== MALI_TEXTURE_TILED
) {
630 panfrost_load_tiled_image(
632 bo
->cpu
+ rsrc
->slices
[level
].offset
,
633 box
->x
, box
->y
, box
->width
, box
->height
,
634 transfer
->base
.stride
,
635 rsrc
->slices
[level
].stride
,
640 return transfer
->map
;
642 /* Direct, persistent writes create holes in time for
643 * caching... I don't know if this is actually possible but we
644 * should still get it right */
646 unsigned dpw
= PIPE_TRANSFER_MAP_DIRECTLY
| PIPE_TRANSFER_WRITE
| PIPE_TRANSFER_PERSISTENT
;
648 if ((usage
& dpw
) == dpw
&& rsrc
->index_cache
)
651 transfer
->base
.stride
= rsrc
->slices
[level
].stride
;
652 transfer
->base
.layer_stride
= panfrost_get_layer_stride(
653 rsrc
->slices
, rsrc
->base
.target
== PIPE_TEXTURE_3D
,
654 rsrc
->cubemap_stride
, level
);
656 /* By mapping direct-write, we're implicitly already
657 * initialized (maybe), so be conservative */
659 if ((usage
& PIPE_TRANSFER_WRITE
) && (usage
& PIPE_TRANSFER_MAP_DIRECTLY
)) {
660 rsrc
->slices
[level
].initialized
= true;
661 panfrost_minmax_cache_invalidate(rsrc
->index_cache
, &transfer
->base
);
665 + rsrc
->slices
[level
].offset
666 + transfer
->base
.box
.z
* transfer
->base
.layer_stride
667 + transfer
->base
.box
.y
* rsrc
->slices
[level
].stride
668 + transfer
->base
.box
.x
* bytes_per_pixel
;
673 panfrost_transfer_unmap(struct pipe_context
*pctx
,
674 struct pipe_transfer
*transfer
)
676 /* Gallium expects writeback here, so we tile */
678 struct panfrost_gtransfer
*trans
= pan_transfer(transfer
);
679 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) transfer
->resource
;
681 /* Mark whatever we wrote as written */
682 if (transfer
->usage
& PIPE_TRANSFER_WRITE
)
683 prsrc
->slices
[transfer
->level
].initialized
= true;
686 struct panfrost_bo
*bo
= prsrc
->bo
;
688 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
689 if (prsrc
->layout
== MALI_TEXTURE_AFBC
) {
690 DBG("Unimplemented: writes to AFBC\n");
691 } else if (prsrc
->layout
== MALI_TEXTURE_TILED
) {
692 assert(transfer
->box
.depth
== 1);
694 panfrost_store_tiled_image(
695 bo
->cpu
+ prsrc
->slices
[transfer
->level
].offset
,
697 transfer
->box
.x
, transfer
->box
.y
,
698 transfer
->box
.width
, transfer
->box
.height
,
699 prsrc
->slices
[transfer
->level
].stride
,
707 util_range_add(&prsrc
->base
, &prsrc
->valid_buffer_range
,
709 transfer
->box
.x
+ transfer
->box
.width
);
711 panfrost_minmax_cache_invalidate(prsrc
->index_cache
, transfer
);
713 /* Derefence the resource */
714 pipe_resource_reference(&transfer
->resource
, NULL
);
716 /* Transfer itself is RALLOCed at the moment */
717 ralloc_free(transfer
);
721 panfrost_transfer_flush_region(struct pipe_context
*pctx
,
722 struct pipe_transfer
*transfer
,
723 const struct pipe_box
*box
)
725 struct panfrost_resource
*rsc
= pan_resource(transfer
->resource
);
727 if (transfer
->resource
->target
== PIPE_BUFFER
) {
728 util_range_add(&rsc
->base
, &rsc
->valid_buffer_range
,
729 transfer
->box
.x
+ box
->x
,
730 transfer
->box
.x
+ box
->x
+ box
->width
);
732 unsigned level
= transfer
->level
;
733 rsc
->slices
[level
].initialized
= true;
738 panfrost_invalidate_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
740 //DBG("TODO %s\n", __func__);
743 static enum pipe_format
744 panfrost_resource_get_internal_format(struct pipe_resource
*rsrc
) {
745 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) rsrc
;
746 return prsrc
->internal_format
;
750 panfrost_generate_mipmap(
751 struct pipe_context
*pctx
,
752 struct pipe_resource
*prsrc
,
753 enum pipe_format format
,
756 unsigned first_layer
,
759 struct panfrost_context
*ctx
= pan_context(pctx
);
760 struct panfrost_resource
*rsrc
= pan_resource(prsrc
);
762 /* Generating a mipmap invalidates the written levels, so make that
763 * explicit so we don't try to wallpaper them back and end up with
764 * u_blitter recursion */
767 for (unsigned l
= base_level
+ 1; l
<= last_level
; ++l
)
768 rsrc
->slices
[l
].initialized
= false;
770 /* Beyond that, we just delegate the hard stuff. We're careful to
771 * include flushes on both ends to make sure the data is really valid.
772 * We could be doing a lot better perf-wise, especially once we have
773 * reorder-type optimizations in place. But for now prioritize
776 panfrost_flush_batches_accessing_bo(ctx
, rsrc
->bo
, PAN_BO_ACCESS_RW
);
777 panfrost_bo_wait(rsrc
->bo
, INT64_MAX
, PAN_BO_ACCESS_RW
);
779 /* We've flushed the original buffer if needed, now trigger a blit */
781 bool blit_res
= util_gen_mipmap(
783 base_level
, last_level
,
784 first_layer
, last_layer
,
785 PIPE_TEX_FILTER_LINEAR
);
787 /* If the blit was successful, flush once more. If it wasn't, well, let
788 * the state tracker deal with it. */
791 panfrost_flush_batches_accessing_bo(ctx
, rsrc
->bo
, PAN_BO_ACCESS_WRITE
);
792 panfrost_bo_wait(rsrc
->bo
, INT64_MAX
, PAN_BO_ACCESS_WRITE
);
798 /* Computes the address to a texture at a particular slice */
801 panfrost_get_texture_address(
802 struct panfrost_resource
*rsrc
,
803 unsigned level
, unsigned face
)
805 bool is_3d
= rsrc
->base
.target
== PIPE_TEXTURE_3D
;
806 return rsrc
->bo
->gpu
+ panfrost_texture_offset(rsrc
->slices
, is_3d
, rsrc
->cubemap_stride
, level
, face
);
809 /* Given a resource that has already been allocated, hint that it should use a
810 * given layout. These are suggestions, not commands; it is perfectly legal to
811 * stub out this function, but there will be performance implications. */
814 panfrost_resource_hint_layout(
815 struct panfrost_screen
*screen
,
816 struct panfrost_resource
*rsrc
,
817 enum mali_texture_layout layout
,
820 /* Nothing to do, although a sophisticated implementation might store
823 if (rsrc
->layout
== layout
)
826 /* We don't use the weight yet, but we should check that it's positive
827 * (semantically meaning that we should choose the given `layout`) */
832 /* Check if the preferred layout is legal for this buffer */
834 if (layout
== MALI_TEXTURE_AFBC
) {
835 bool can_afbc
= panfrost_format_supports_afbc(rsrc
->base
.format
);
836 bool is_scanout
= rsrc
->base
.bind
&
837 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
);
839 if (!can_afbc
|| is_scanout
)
843 /* Simple heuristic so far: if the resource is uninitialized, switch to
844 * the hinted layout. If it is initialized, keep the original layout.
845 * This misses some cases where it would be beneficial to switch and
848 bool is_initialized
= false;
850 for (unsigned i
= 0; i
< MAX_MIP_LEVELS
; ++i
)
851 is_initialized
|= rsrc
->slices
[i
].initialized
;
856 /* We're uninitialized, so do a layout switch. Reinitialize slices. */
859 rsrc
->layout
= layout
;
860 panfrost_setup_slices(rsrc
, &new_size
);
862 /* If we grew in size, reallocate the BO */
863 if (new_size
> rsrc
->bo
->size
) {
864 panfrost_bo_unreference(rsrc
->bo
);
865 rsrc
->bo
= panfrost_bo_create(screen
, new_size
, PAN_BO_DELAY_MMAP
);
868 /* TODO: If there are textures bound, regenerate their descriptors */
872 panfrost_resource_set_stencil(struct pipe_resource
*prsrc
,
873 struct pipe_resource
*stencil
)
875 pan_resource(prsrc
)->separate_stencil
= pan_resource(stencil
);
878 static struct pipe_resource
*
879 panfrost_resource_get_stencil(struct pipe_resource
*prsrc
)
881 return &pan_resource(prsrc
)->separate_stencil
->base
;
884 static const struct u_transfer_vtbl transfer_vtbl
= {
885 .resource_create
= panfrost_resource_create
,
886 .resource_destroy
= panfrost_resource_destroy
,
887 .transfer_map
= panfrost_transfer_map
,
888 .transfer_unmap
= panfrost_transfer_unmap
,
889 .transfer_flush_region
= panfrost_transfer_flush_region
,
890 .get_internal_format
= panfrost_resource_get_internal_format
,
891 .set_stencil
= panfrost_resource_set_stencil
,
892 .get_stencil
= panfrost_resource_get_stencil
,
896 panfrost_resource_screen_init(struct panfrost_screen
*pscreen
)
898 //pscreen->base.resource_create_with_modifiers =
899 // panfrost_resource_create_with_modifiers;
900 pscreen
->base
.resource_create
= u_transfer_helper_resource_create
;
901 pscreen
->base
.resource_destroy
= u_transfer_helper_resource_destroy
;
902 pscreen
->base
.resource_from_handle
= panfrost_resource_from_handle
;
903 pscreen
->base
.resource_get_handle
= panfrost_resource_get_handle
;
904 pscreen
->base
.transfer_helper
= u_transfer_helper_create(&transfer_vtbl
,
910 panfrost_resource_context_init(struct pipe_context
*pctx
)
912 pctx
->transfer_map
= u_transfer_helper_transfer_map
;
913 pctx
->transfer_unmap
= u_transfer_helper_transfer_unmap
;
914 pctx
->create_surface
= panfrost_create_surface
;
915 pctx
->surface_destroy
= panfrost_surface_destroy
;
916 pctx
->resource_copy_region
= util_resource_copy_region
;
917 pctx
->blit
= panfrost_blit
;
918 pctx
->generate_mipmap
= panfrost_generate_mipmap
;
919 pctx
->flush_resource
= panfrost_flush_resource
;
920 pctx
->invalidate_resource
= panfrost_invalidate_resource
;
921 pctx
->transfer_flush_region
= u_transfer_helper_transfer_flush_region
;
922 pctx
->buffer_subdata
= u_default_buffer_subdata
;
923 pctx
->texture_subdata
= u_default_texture_subdata
;