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"
52 panfrost_resource_reset_damage(struct panfrost_resource
*pres
)
54 /* We set the damage extent to the full resource size but keep the
55 * damage box empty so that the FB content is reloaded by default.
57 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
58 pres
->damage
.extent
.maxx
= pres
->base
.width0
;
59 pres
->damage
.extent
.maxy
= pres
->base
.height0
;
62 static struct pipe_resource
*
63 panfrost_resource_from_handle(struct pipe_screen
*pscreen
,
64 const struct pipe_resource
*templat
,
65 struct winsys_handle
*whandle
,
68 struct panfrost_screen
*screen
= pan_screen(pscreen
);
69 struct panfrost_resource
*rsc
;
70 struct pipe_resource
*prsc
;
72 assert(whandle
->type
== WINSYS_HANDLE_TYPE_FD
);
74 rsc
= rzalloc(pscreen
, struct panfrost_resource
);
82 pipe_reference_init(&prsc
->reference
, 1);
83 prsc
->screen
= pscreen
;
85 rsc
->bo
= panfrost_bo_import(screen
, whandle
->handle
);
86 rsc
->slices
[0].stride
= whandle
->stride
;
87 rsc
->slices
[0].offset
= whandle
->offset
;
88 rsc
->slices
[0].initialized
= true;
89 panfrost_resource_reset_damage(rsc
);
93 renderonly_create_gpu_import_for_resource(prsc
, screen
->ro
, NULL
);
94 /* failure is expected in some cases.. */
101 panfrost_resource_get_handle(struct pipe_screen
*pscreen
,
102 struct pipe_context
*ctx
,
103 struct pipe_resource
*pt
,
104 struct winsys_handle
*handle
,
107 struct panfrost_screen
*screen
= pan_screen(pscreen
);
108 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
109 struct renderonly_scanout
*scanout
= rsrc
->scanout
;
111 handle
->modifier
= DRM_FORMAT_MOD_INVALID
;
113 if (handle
->type
== WINSYS_HANDLE_TYPE_SHARED
) {
115 } else if (handle
->type
== WINSYS_HANDLE_TYPE_KMS
) {
116 if (renderonly_get_handle(scanout
, handle
))
119 handle
->handle
= rsrc
->bo
->gem_handle
;
120 handle
->stride
= rsrc
->slices
[0].stride
;
121 handle
->offset
= rsrc
->slices
[0].offset
;
123 } else if (handle
->type
== WINSYS_HANDLE_TYPE_FD
) {
125 struct drm_prime_handle args
= {
126 .handle
= scanout
->handle
,
127 .flags
= DRM_CLOEXEC
,
130 int ret
= drmIoctl(screen
->ro
->kms_fd
, DRM_IOCTL_PRIME_HANDLE_TO_FD
, &args
);
134 handle
->stride
= scanout
->stride
;
135 handle
->handle
= args
.fd
;
139 int fd
= panfrost_bo_export(rsrc
->bo
);
145 handle
->stride
= rsrc
->slices
[0].stride
;
146 handle
->offset
= rsrc
->slices
[0].offset
;
155 panfrost_flush_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
157 //DBG("TODO %s\n", __func__);
160 static struct pipe_surface
*
161 panfrost_create_surface(struct pipe_context
*pipe
,
162 struct pipe_resource
*pt
,
163 const struct pipe_surface
*surf_tmpl
)
165 struct pipe_surface
*ps
= NULL
;
167 ps
= rzalloc(pipe
, struct pipe_surface
);
170 pipe_reference_init(&ps
->reference
, 1);
171 pipe_resource_reference(&ps
->texture
, pt
);
173 ps
->format
= surf_tmpl
->format
;
175 if (pt
->target
!= PIPE_BUFFER
) {
176 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
177 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
178 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
179 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
180 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
181 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
183 /* setting width as number of elements should get us correct renderbuffer width */
184 ps
->width
= surf_tmpl
->u
.buf
.last_element
- surf_tmpl
->u
.buf
.first_element
+ 1;
185 ps
->height
= pt
->height0
;
186 ps
->u
.buf
.first_element
= surf_tmpl
->u
.buf
.first_element
;
187 ps
->u
.buf
.last_element
= surf_tmpl
->u
.buf
.last_element
;
188 assert(ps
->u
.buf
.first_element
<= ps
->u
.buf
.last_element
);
189 assert(ps
->u
.buf
.last_element
< ps
->width
);
197 panfrost_surface_destroy(struct pipe_context
*pipe
,
198 struct pipe_surface
*surf
)
200 assert(surf
->texture
);
201 pipe_resource_reference(&surf
->texture
, NULL
);
205 static struct pipe_resource
*
206 panfrost_create_scanout_res(struct pipe_screen
*screen
,
207 const struct pipe_resource
*template)
209 struct panfrost_screen
*pscreen
= pan_screen(screen
);
210 struct pipe_resource scanout_templat
= *template;
211 struct renderonly_scanout
*scanout
;
212 struct winsys_handle handle
;
213 struct pipe_resource
*res
;
215 scanout
= renderonly_scanout_for_resource(&scanout_templat
,
216 pscreen
->ro
, &handle
);
220 assert(handle
.type
== WINSYS_HANDLE_TYPE_FD
);
221 /* TODO: handle modifiers? */
222 res
= screen
->resource_from_handle(screen
, template, &handle
,
223 PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE
);
224 close(handle
.handle
);
228 struct panfrost_resource
*pres
= pan_resource(res
);
230 pres
->scanout
= scanout
;
235 /* Computes sizes for checksumming, which is 8 bytes per 16x16 tile */
237 #define CHECKSUM_TILE_WIDTH 16
238 #define CHECKSUM_TILE_HEIGHT 16
239 #define CHECKSUM_BYTES_PER_TILE 8
242 panfrost_compute_checksum_sizes(
243 struct panfrost_slice
*slice
,
247 unsigned aligned_width
= ALIGN_POT(width
, CHECKSUM_TILE_WIDTH
);
248 unsigned aligned_height
= ALIGN_POT(height
, CHECKSUM_TILE_HEIGHT
);
250 unsigned tile_count_x
= aligned_width
/ CHECKSUM_TILE_WIDTH
;
251 unsigned tile_count_y
= aligned_height
/ CHECKSUM_TILE_HEIGHT
;
253 slice
->checksum_stride
= tile_count_x
* CHECKSUM_BYTES_PER_TILE
;
255 return slice
->checksum_stride
* tile_count_y
;
258 /* Setup the mip tree given a particular layout, possibly with checksumming */
261 panfrost_setup_slices(struct panfrost_resource
*pres
, size_t *bo_size
)
263 struct pipe_resource
*res
= &pres
->base
;
264 unsigned width
= res
->width0
;
265 unsigned height
= res
->height0
;
266 unsigned depth
= res
->depth0
;
267 unsigned bytes_per_pixel
= util_format_get_blocksize(res
->format
);
271 /* Tiled operates blockwise; linear is packed. Also, anything
272 * we render to has to be tile-aligned. Maybe not strictly
273 * necessary, but we're not *that* pressed for memory and it
274 * makes code a lot simpler */
276 bool renderable
= res
->bind
&
277 (PIPE_BIND_RENDER_TARGET
| PIPE_BIND_DEPTH_STENCIL
);
278 bool afbc
= pres
->layout
== PAN_AFBC
;
279 bool tiled
= pres
->layout
== PAN_TILED
;
280 bool should_align
= renderable
|| tiled
;
282 /* We don't know how to specify a 2D stride for 3D textures */
284 bool can_align_stride
=
285 res
->target
!= PIPE_TEXTURE_3D
;
287 should_align
&= can_align_stride
;
290 unsigned size_2d
= 0;
292 for (unsigned l
= 0; l
<= res
->last_level
; ++l
) {
293 struct panfrost_slice
*slice
= &pres
->slices
[l
];
295 unsigned effective_width
= width
;
296 unsigned effective_height
= height
;
297 unsigned effective_depth
= depth
;
300 effective_width
= ALIGN_POT(effective_width
, 16);
301 effective_height
= ALIGN_POT(effective_height
, 16);
303 /* We don't need to align depth */
306 /* Align levels to cache-line as a performance improvement for
307 * linear/tiled and as a requirement for AFBC */
309 offset
= ALIGN_POT(offset
, 64);
311 slice
->offset
= offset
;
313 /* Compute the would-be stride */
314 unsigned stride
= bytes_per_pixel
* effective_width
;
316 /* ..but cache-line align it for performance */
317 if (can_align_stride
&& pres
->layout
== PAN_LINEAR
)
318 stride
= ALIGN_POT(stride
, 64);
320 slice
->stride
= stride
;
322 unsigned slice_one_size
= slice
->stride
* effective_height
;
323 unsigned slice_full_size
= slice_one_size
* effective_depth
;
325 /* Report 2D size for 3D texturing */
328 size_2d
= slice_one_size
;
330 /* Compute AFBC sizes if necessary */
333 panfrost_afbc_header_size(width
, height
);
335 offset
+= slice
->header_size
;
338 offset
+= slice_full_size
;
340 /* Add a checksum region if necessary */
341 if (pres
->checksummed
) {
342 slice
->checksum_offset
= offset
;
344 unsigned size
= panfrost_compute_checksum_sizes(
345 slice
, width
, height
);
350 width
= u_minify(width
, 1);
351 height
= u_minify(height
, 1);
352 depth
= u_minify(depth
, 1);
355 assert(res
->array_size
);
357 if (res
->target
!= PIPE_TEXTURE_3D
) {
358 /* Arrays and cubemaps have the entire miptree duplicated */
360 pres
->cubemap_stride
= ALIGN_POT(offset
, 64);
361 *bo_size
= ALIGN_POT(pres
->cubemap_stride
* res
->array_size
, 4096);
363 /* 3D strides across the 2D layers */
364 assert(res
->array_size
== 1);
366 pres
->cubemap_stride
= size_2d
;
367 *bo_size
= ALIGN_POT(offset
, 4096);
372 panfrost_resource_create_bo(struct panfrost_screen
*screen
, struct panfrost_resource
*pres
)
374 struct pipe_resource
*res
= &pres
->base
;
376 /* Based on the usage, figure out what storing will be used. There are
379 * Linear: the basic format, bad for memory bandwidth, bad for cache
380 * use. Zero-copy, though. Renderable.
382 * Tiled: Not compressed, but cache-optimized. Expensive to write into
383 * (due to software tiling), but cheap to sample from. Ideal for most
386 * AFBC: Compressed and renderable (so always desirable for non-scanout
387 * rendertargets). Cheap to sample from. The format is black box, so we
388 * can't read/write from software.
391 /* Tiling textures is almost always faster, unless we only use it once */
393 bool is_texture
= (res
->bind
& PIPE_BIND_SAMPLER_VIEW
);
394 bool is_2d
= res
->depth0
== 1 && res
->array_size
== 1;
395 bool is_streaming
= (res
->usage
!= PIPE_USAGE_STREAM
);
397 bool should_tile
= is_streaming
&& is_texture
&& is_2d
;
399 /* Depth/stencil can't be tiled, only linear or AFBC */
400 should_tile
&= !(res
->bind
& PIPE_BIND_DEPTH_STENCIL
);
402 /* FBOs we would like to checksum, if at all possible */
403 bool can_checksum
= !(res
->bind
& (PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
));
404 bool should_checksum
= res
->bind
& PIPE_BIND_RENDER_TARGET
;
406 pres
->checksummed
= can_checksum
&& should_checksum
;
408 /* Set the layout appropriately */
409 pres
->layout
= should_tile
? PAN_TILED
: PAN_LINEAR
;
413 panfrost_setup_slices(pres
, &bo_size
);
415 /* We create a BO immediately but don't bother mapping, since we don't
416 * care to map e.g. FBOs which the CPU probably won't touch */
417 pres
->bo
= panfrost_bo_create(screen
, bo_size
, PAN_BO_DELAY_MMAP
);
421 panfrost_resource_set_damage_region(struct pipe_screen
*screen
,
422 struct pipe_resource
*res
,
424 const struct pipe_box
*rects
)
426 struct panfrost_resource
*pres
= pan_resource(res
);
427 struct pipe_box
*damage_rect
= &pres
->damage
.biggest_rect
;
428 struct pipe_scissor_state
*damage_extent
= &pres
->damage
.extent
;
432 panfrost_resource_reset_damage(pres
);
436 /* We keep track of 2 different things here:
437 * 1 the damage extent: the quad including all damage regions. Will be
438 * used restrict the rendering area
439 * 2 the biggest damage rectangle: when there are more than one damage
440 * rect we keep the biggest one and will generate 4 wallpaper quads
441 * out of it (see panfrost_draw_wallpaper() for more details). We
442 * might want to do something smarter at some point.
444 * _________________________________
446 * | _________________________ |
447 * | | rect1| _________| |
448 * | |______|_____ | rect 3: | |
449 * | | | rect2 | | biggest | |
450 * | | |_______| | rect | |
451 * | |_______________|_________| |
453 * |_______________________________|
456 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
457 damage_extent
->minx
= 0xffff;
458 damage_extent
->miny
= 0xffff;
459 for (i
= 0; i
< nrects
; i
++) {
460 int x
= rects
[i
].x
, w
= rects
[i
].width
, h
= rects
[i
].height
;
461 int y
= res
->height0
- (rects
[i
].y
+ h
);
463 /* Clamp x,y,w,h to prevent negative values. */
475 if (damage_rect
->width
* damage_rect
->height
< w
* h
)
476 u_box_2d(x
, y
, w
, h
, damage_rect
);
478 damage_extent
->minx
= MIN2(damage_extent
->minx
, x
);
479 damage_extent
->miny
= MIN2(damage_extent
->miny
, y
);
480 damage_extent
->maxx
= MAX2(damage_extent
->maxx
,
481 MIN2(x
+ w
, res
->width0
));
482 damage_extent
->maxy
= MAX2(damage_extent
->maxy
,
483 MIN2(y
+ h
, res
->height0
));
487 static struct pipe_resource
*
488 panfrost_resource_create(struct pipe_screen
*screen
,
489 const struct pipe_resource
*template)
491 /* Make sure we're familiar */
492 switch (template->target
) {
494 case PIPE_TEXTURE_1D
:
495 case PIPE_TEXTURE_2D
:
496 case PIPE_TEXTURE_3D
:
497 case PIPE_TEXTURE_CUBE
:
498 case PIPE_TEXTURE_RECT
:
499 case PIPE_TEXTURE_2D_ARRAY
:
502 DBG("Unknown texture target %d\n", template->target
);
507 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
))
508 return panfrost_create_scanout_res(screen
, template);
510 struct panfrost_resource
*so
= rzalloc(screen
, struct panfrost_resource
);
511 struct panfrost_screen
*pscreen
= (struct panfrost_screen
*) screen
;
513 so
->base
= *template;
514 so
->base
.screen
= screen
;
516 pipe_reference_init(&so
->base
.reference
, 1);
518 util_range_init(&so
->valid_buffer_range
);
520 panfrost_resource_create_bo(pscreen
, so
);
521 panfrost_resource_reset_damage(so
);
523 return (struct pipe_resource
*)so
;
527 panfrost_resource_destroy(struct pipe_screen
*screen
,
528 struct pipe_resource
*pt
)
530 struct panfrost_screen
*pscreen
= pan_screen(screen
);
531 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
534 renderonly_scanout_destroy(rsrc
->scanout
, pscreen
->ro
);
537 panfrost_bo_unreference(rsrc
->bo
);
539 util_range_destroy(&rsrc
->valid_buffer_range
);
544 panfrost_transfer_map(struct pipe_context
*pctx
,
545 struct pipe_resource
*resource
,
547 unsigned usage
, /* a combination of PIPE_TRANSFER_x */
548 const struct pipe_box
*box
,
549 struct pipe_transfer
**out_transfer
)
551 int bytes_per_pixel
= util_format_get_blocksize(resource
->format
);
552 struct panfrost_resource
*rsrc
= pan_resource(resource
);
553 struct panfrost_bo
*bo
= rsrc
->bo
;
555 struct panfrost_gtransfer
*transfer
= rzalloc(pctx
, struct panfrost_gtransfer
);
556 transfer
->base
.level
= level
;
557 transfer
->base
.usage
= usage
;
558 transfer
->base
.box
= *box
;
560 pipe_resource_reference(&transfer
->base
.resource
, resource
);
562 *out_transfer
= &transfer
->base
;
564 /* If we haven't already mmaped, now's the time */
565 panfrost_bo_mmap(bo
);
567 /* Check if we're bound for rendering and this is a read pixels. If so,
568 * we need to flush */
570 struct panfrost_context
*ctx
= pan_context(pctx
);
571 struct pipe_framebuffer_state
*fb
= &ctx
->pipe_framebuffer
;
573 bool is_bound
= false;
575 for (unsigned c
= 0; c
< fb
->nr_cbufs
; ++c
) {
576 /* If cbufs is NULL, we're definitely not bound here */
579 is_bound
|= fb
->cbufs
[c
]->texture
== resource
;
582 if (is_bound
&& (usage
& PIPE_TRANSFER_READ
))
585 /* TODO: Respect usage flags */
587 if (usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
) {
588 /* If the BO is used by one of the pending batches or if it's
589 * not ready yet (still accessed by one of the already flushed
590 * batches), we try to allocate a new one to avoid waiting.
592 if (panfrost_pending_batches_access_bo(ctx
, bo
) ||
593 !panfrost_bo_wait(bo
, 0, PAN_BO_ACCESS_RW
)) {
594 struct panfrost_screen
*screen
= pan_screen(pctx
->screen
);
595 /* We want the BO to be MMAPed. */
596 uint32_t flags
= bo
->flags
& ~PAN_BO_DELAY_MMAP
;
597 struct panfrost_bo
*newbo
= NULL
;
599 /* When the BO has been imported/exported, we can't
600 * replace it by another one, otherwise the
601 * importer/exporter wouldn't see the change we're
604 if (!(bo
->flags
& (PAN_BO_IMPORTED
| PAN_BO_EXPORTED
)))
605 newbo
= panfrost_bo_create(screen
, bo
->size
,
609 panfrost_bo_unreference(bo
);
613 uint32_t access
= PAN_BO_ACCESS_RW
;
615 /* Allocation failed or was impossible, let's
616 * fall back on a flush+wait.
618 panfrost_flush_batches_accessing_bo(ctx
, bo
,
620 panfrost_bo_wait(bo
, INT64_MAX
, access
);
623 } else if ((usage
& PIPE_TRANSFER_WRITE
)
624 && resource
->target
== PIPE_BUFFER
625 && !util_ranges_intersect(&rsrc
->valid_buffer_range
, box
->x
, box
->x
+ box
->width
)) {
626 /* No flush for writes to uninitialized */
627 } else if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
628 if (usage
& PIPE_TRANSFER_WRITE
) {
629 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_RW
);
630 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_RW
);
631 } else if (usage
& PIPE_TRANSFER_READ
) {
632 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_WRITE
);
633 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_WRITE
);
635 /* Why are you even mapping?! */
639 if (rsrc
->layout
!= PAN_LINEAR
) {
640 /* Non-linear resources need to be indirectly mapped */
642 if (usage
& PIPE_TRANSFER_MAP_DIRECTLY
)
645 transfer
->base
.stride
= box
->width
* bytes_per_pixel
;
646 transfer
->base
.layer_stride
= transfer
->base
.stride
* box
->height
;
647 transfer
->map
= rzalloc_size(transfer
, transfer
->base
.layer_stride
* box
->depth
);
648 assert(box
->depth
== 1);
650 if ((usage
& PIPE_TRANSFER_READ
) && rsrc
->slices
[level
].initialized
) {
651 if (rsrc
->layout
== PAN_AFBC
) {
652 DBG("Unimplemented: reads from AFBC");
653 } else if (rsrc
->layout
== PAN_TILED
) {
654 panfrost_load_tiled_image(
656 bo
->cpu
+ rsrc
->slices
[level
].offset
,
658 transfer
->base
.stride
,
659 rsrc
->slices
[level
].stride
,
660 util_format_get_blocksize(resource
->format
));
664 return transfer
->map
;
666 transfer
->base
.stride
= rsrc
->slices
[level
].stride
;
667 transfer
->base
.layer_stride
= rsrc
->cubemap_stride
;
669 /* By mapping direct-write, we're implicitly already
670 * initialized (maybe), so be conservative */
672 if ((usage
& PIPE_TRANSFER_WRITE
) && (usage
& PIPE_TRANSFER_MAP_DIRECTLY
))
673 rsrc
->slices
[level
].initialized
= true;
676 + rsrc
->slices
[level
].offset
677 + transfer
->base
.box
.z
* rsrc
->cubemap_stride
678 + transfer
->base
.box
.y
* rsrc
->slices
[level
].stride
679 + transfer
->base
.box
.x
* bytes_per_pixel
;
684 panfrost_transfer_unmap(struct pipe_context
*pctx
,
685 struct pipe_transfer
*transfer
)
687 /* Gallium expects writeback here, so we tile */
689 struct panfrost_gtransfer
*trans
= pan_transfer(transfer
);
690 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) transfer
->resource
;
692 /* Mark whatever we wrote as written */
693 if (transfer
->usage
& PIPE_TRANSFER_WRITE
)
694 prsrc
->slices
[transfer
->level
].initialized
= true;
697 struct panfrost_bo
*bo
= prsrc
->bo
;
699 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
700 if (prsrc
->layout
== PAN_AFBC
) {
701 DBG("Unimplemented: writes to AFBC\n");
702 } else if (prsrc
->layout
== PAN_TILED
) {
703 assert(transfer
->box
.depth
== 1);
705 panfrost_store_tiled_image(
706 bo
->cpu
+ prsrc
->slices
[transfer
->level
].offset
,
709 prsrc
->slices
[transfer
->level
].stride
,
711 util_format_get_blocksize(prsrc
->base
.format
));
717 util_range_add(&prsrc
->base
, &prsrc
->valid_buffer_range
,
719 transfer
->box
.x
+ transfer
->box
.width
);
721 /* Derefence the resource */
722 pipe_resource_reference(&transfer
->resource
, NULL
);
724 /* Transfer itself is RALLOCed at the moment */
725 ralloc_free(transfer
);
729 panfrost_transfer_flush_region(struct pipe_context
*pctx
,
730 struct pipe_transfer
*transfer
,
731 const struct pipe_box
*box
)
733 struct panfrost_resource
*rsc
= pan_resource(transfer
->resource
);
735 if (transfer
->resource
->target
== PIPE_BUFFER
) {
736 util_range_add(&rsc
->base
, &rsc
->valid_buffer_range
,
737 transfer
->box
.x
+ box
->x
,
738 transfer
->box
.x
+ box
->x
+ box
->width
);
740 unsigned level
= transfer
->level
;
741 rsc
->slices
[level
].initialized
= true;
746 panfrost_invalidate_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
748 //DBG("TODO %s\n", __func__);
751 static enum pipe_format
752 panfrost_resource_get_internal_format(struct pipe_resource
*prsrc
) {
753 return prsrc
->format
;
757 panfrost_generate_mipmap(
758 struct pipe_context
*pctx
,
759 struct pipe_resource
*prsrc
,
760 enum pipe_format format
,
763 unsigned first_layer
,
766 struct panfrost_context
*ctx
= pan_context(pctx
);
767 struct panfrost_resource
*rsrc
= pan_resource(prsrc
);
769 /* Generating a mipmap invalidates the written levels, so make that
770 * explicit so we don't try to wallpaper them back and end up with
771 * u_blitter recursion */
774 for (unsigned l
= base_level
+ 1; l
<= last_level
; ++l
)
775 rsrc
->slices
[l
].initialized
= false;
777 /* Beyond that, we just delegate the hard stuff. We're careful to
778 * include flushes on both ends to make sure the data is really valid.
779 * We could be doing a lot better perf-wise, especially once we have
780 * reorder-type optimizations in place. But for now prioritize
783 panfrost_flush_batches_accessing_bo(ctx
, rsrc
->bo
, PAN_BO_ACCESS_RW
);
784 panfrost_bo_wait(rsrc
->bo
, INT64_MAX
, PAN_BO_ACCESS_RW
);
786 /* We've flushed the original buffer if needed, now trigger a blit */
788 bool blit_res
= util_gen_mipmap(
790 base_level
, last_level
,
791 first_layer
, last_layer
,
792 PIPE_TEX_FILTER_LINEAR
);
794 /* If the blit was successful, flush once more. If it wasn't, well, let
795 * the state tracker deal with it. */
798 panfrost_flush_batches_accessing_bo(ctx
, rsrc
->bo
, PAN_BO_ACCESS_WRITE
);
799 panfrost_bo_wait(rsrc
->bo
, INT64_MAX
, PAN_BO_ACCESS_WRITE
);
805 /* Computes the address to a texture at a particular slice */
808 panfrost_get_texture_address(
809 struct panfrost_resource
*rsrc
,
810 unsigned level
, unsigned face
)
812 unsigned level_offset
= rsrc
->slices
[level
].offset
;
813 unsigned face_offset
= face
* rsrc
->cubemap_stride
;
815 return rsrc
->bo
->gpu
+ level_offset
+ face_offset
;
818 /* Given a resource that has already been allocated, hint that it should use a
819 * given layout. These are suggestions, not commands; it is perfectly legal to
820 * stub out this function, but there will be performance implications. */
823 panfrost_resource_hint_layout(
824 struct panfrost_screen
*screen
,
825 struct panfrost_resource
*rsrc
,
826 enum panfrost_memory_layout layout
,
829 /* Nothing to do, although a sophisticated implementation might store
832 if (rsrc
->layout
== layout
)
835 /* We don't use the weight yet, but we should check that it's positive
836 * (semantically meaning that we should choose the given `layout`) */
841 /* Check if the preferred layout is legal for this buffer */
843 if (layout
== PAN_AFBC
) {
844 bool can_afbc
= panfrost_format_supports_afbc(rsrc
->base
.format
);
845 bool is_scanout
= rsrc
->base
.bind
&
846 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
);
848 if (!can_afbc
|| is_scanout
)
852 /* Simple heuristic so far: if the resource is uninitialized, switch to
853 * the hinted layout. If it is initialized, keep the original layout.
854 * This misses some cases where it would be beneficial to switch and
857 bool is_initialized
= false;
859 for (unsigned i
= 0; i
< MAX_MIP_LEVELS
; ++i
)
860 is_initialized
|= rsrc
->slices
[i
].initialized
;
865 /* We're uninitialized, so do a layout switch. Reinitialize slices. */
868 rsrc
->layout
= layout
;
869 panfrost_setup_slices(rsrc
, &new_size
);
871 /* If we grew in size, reallocate the BO */
872 if (new_size
> rsrc
->bo
->size
) {
873 panfrost_bo_unreference(rsrc
->bo
);
874 rsrc
->bo
= panfrost_bo_create(screen
, new_size
, PAN_BO_DELAY_MMAP
);
879 panfrost_resource_set_stencil(struct pipe_resource
*prsrc
,
880 struct pipe_resource
*stencil
)
882 pan_resource(prsrc
)->separate_stencil
= pan_resource(stencil
);
885 static struct pipe_resource
*
886 panfrost_resource_get_stencil(struct pipe_resource
*prsrc
)
888 return &pan_resource(prsrc
)->separate_stencil
->base
;
891 static const struct u_transfer_vtbl transfer_vtbl
= {
892 .resource_create
= panfrost_resource_create
,
893 .resource_destroy
= panfrost_resource_destroy
,
894 .transfer_map
= panfrost_transfer_map
,
895 .transfer_unmap
= panfrost_transfer_unmap
,
896 .transfer_flush_region
= panfrost_transfer_flush_region
,
897 .get_internal_format
= panfrost_resource_get_internal_format
,
898 .set_stencil
= panfrost_resource_set_stencil
,
899 .get_stencil
= panfrost_resource_get_stencil
,
903 panfrost_resource_screen_init(struct panfrost_screen
*pscreen
)
905 //pscreen->base.resource_create_with_modifiers =
906 // panfrost_resource_create_with_modifiers;
907 pscreen
->base
.resource_create
= u_transfer_helper_resource_create
;
908 pscreen
->base
.resource_destroy
= u_transfer_helper_resource_destroy
;
909 pscreen
->base
.resource_from_handle
= panfrost_resource_from_handle
;
910 pscreen
->base
.resource_get_handle
= panfrost_resource_get_handle
;
911 pscreen
->base
.transfer_helper
= u_transfer_helper_create(&transfer_vtbl
,
917 panfrost_resource_context_init(struct pipe_context
*pctx
)
919 pctx
->transfer_map
= u_transfer_helper_transfer_map
;
920 pctx
->transfer_unmap
= u_transfer_helper_transfer_unmap
;
921 pctx
->create_surface
= panfrost_create_surface
;
922 pctx
->surface_destroy
= panfrost_surface_destroy
;
923 pctx
->resource_copy_region
= util_resource_copy_region
;
924 pctx
->blit
= panfrost_blit
;
925 pctx
->generate_mipmap
= panfrost_generate_mipmap
;
926 pctx
->flush_resource
= panfrost_flush_resource
;
927 pctx
->invalidate_resource
= panfrost_invalidate_resource
;
928 pctx
->transfer_flush_region
= u_transfer_helper_transfer_flush_region
;
929 pctx
->buffer_subdata
= u_default_buffer_subdata
;
930 pctx
->texture_subdata
= u_default_texture_subdata
;