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
->slices
[0].stride
= whandle
->stride
;
89 rsc
->slices
[0].offset
= whandle
->offset
;
90 rsc
->slices
[0].initialized
= true;
91 panfrost_resource_reset_damage(rsc
);
95 renderonly_create_gpu_import_for_resource(prsc
, screen
->ro
, NULL
);
96 /* failure is expected in some cases.. */
103 panfrost_resource_get_handle(struct pipe_screen
*pscreen
,
104 struct pipe_context
*ctx
,
105 struct pipe_resource
*pt
,
106 struct winsys_handle
*handle
,
109 struct panfrost_screen
*screen
= pan_screen(pscreen
);
110 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
111 struct renderonly_scanout
*scanout
= rsrc
->scanout
;
113 handle
->modifier
= DRM_FORMAT_MOD_INVALID
;
115 if (handle
->type
== WINSYS_HANDLE_TYPE_SHARED
) {
117 } else if (handle
->type
== WINSYS_HANDLE_TYPE_KMS
) {
118 if (renderonly_get_handle(scanout
, handle
))
121 handle
->handle
= rsrc
->bo
->gem_handle
;
122 handle
->stride
= rsrc
->slices
[0].stride
;
123 handle
->offset
= rsrc
->slices
[0].offset
;
125 } else if (handle
->type
== WINSYS_HANDLE_TYPE_FD
) {
127 struct drm_prime_handle args
= {
128 .handle
= scanout
->handle
,
129 .flags
= DRM_CLOEXEC
,
132 int ret
= drmIoctl(screen
->ro
->kms_fd
, DRM_IOCTL_PRIME_HANDLE_TO_FD
, &args
);
136 handle
->stride
= scanout
->stride
;
137 handle
->handle
= args
.fd
;
141 int fd
= panfrost_bo_export(rsrc
->bo
);
147 handle
->stride
= rsrc
->slices
[0].stride
;
148 handle
->offset
= rsrc
->slices
[0].offset
;
157 panfrost_flush_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
159 //DBG("TODO %s\n", __func__);
162 static struct pipe_surface
*
163 panfrost_create_surface(struct pipe_context
*pipe
,
164 struct pipe_resource
*pt
,
165 const struct pipe_surface
*surf_tmpl
)
167 struct pipe_surface
*ps
= NULL
;
169 ps
= rzalloc(pipe
, struct pipe_surface
);
172 pipe_reference_init(&ps
->reference
, 1);
173 pipe_resource_reference(&ps
->texture
, pt
);
175 ps
->format
= surf_tmpl
->format
;
177 if (pt
->target
!= PIPE_BUFFER
) {
178 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
179 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
180 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
181 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
182 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
183 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
185 /* setting width as number of elements should get us correct renderbuffer width */
186 ps
->width
= surf_tmpl
->u
.buf
.last_element
- surf_tmpl
->u
.buf
.first_element
+ 1;
187 ps
->height
= pt
->height0
;
188 ps
->u
.buf
.first_element
= surf_tmpl
->u
.buf
.first_element
;
189 ps
->u
.buf
.last_element
= surf_tmpl
->u
.buf
.last_element
;
190 assert(ps
->u
.buf
.first_element
<= ps
->u
.buf
.last_element
);
191 assert(ps
->u
.buf
.last_element
< ps
->width
);
199 panfrost_surface_destroy(struct pipe_context
*pipe
,
200 struct pipe_surface
*surf
)
202 assert(surf
->texture
);
203 pipe_resource_reference(&surf
->texture
, NULL
);
207 static struct pipe_resource
*
208 panfrost_create_scanout_res(struct pipe_screen
*screen
,
209 const struct pipe_resource
*template)
211 struct panfrost_screen
*pscreen
= pan_screen(screen
);
212 struct pipe_resource scanout_templat
= *template;
213 struct renderonly_scanout
*scanout
;
214 struct winsys_handle handle
;
215 struct pipe_resource
*res
;
217 scanout
= renderonly_scanout_for_resource(&scanout_templat
,
218 pscreen
->ro
, &handle
);
222 assert(handle
.type
== WINSYS_HANDLE_TYPE_FD
);
223 /* TODO: handle modifiers? */
224 res
= screen
->resource_from_handle(screen
, template, &handle
,
225 PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE
);
226 close(handle
.handle
);
230 struct panfrost_resource
*pres
= pan_resource(res
);
232 pres
->scanout
= scanout
;
237 /* Computes sizes for checksumming, which is 8 bytes per 16x16 tile */
239 #define CHECKSUM_TILE_WIDTH 16
240 #define CHECKSUM_TILE_HEIGHT 16
241 #define CHECKSUM_BYTES_PER_TILE 8
244 panfrost_compute_checksum_sizes(
245 struct panfrost_slice
*slice
,
249 unsigned aligned_width
= ALIGN_POT(width
, CHECKSUM_TILE_WIDTH
);
250 unsigned aligned_height
= ALIGN_POT(height
, CHECKSUM_TILE_HEIGHT
);
252 unsigned tile_count_x
= aligned_width
/ CHECKSUM_TILE_WIDTH
;
253 unsigned tile_count_y
= aligned_height
/ CHECKSUM_TILE_HEIGHT
;
255 slice
->checksum_stride
= tile_count_x
* CHECKSUM_BYTES_PER_TILE
;
257 return slice
->checksum_stride
* tile_count_y
;
260 /* Setup the mip tree given a particular layout, possibly with checksumming */
263 panfrost_setup_slices(struct panfrost_resource
*pres
, size_t *bo_size
)
265 struct pipe_resource
*res
= &pres
->base
;
266 unsigned width
= res
->width0
;
267 unsigned height
= res
->height0
;
268 unsigned depth
= res
->depth0
;
269 unsigned bytes_per_pixel
= util_format_get_blocksize(res
->format
);
273 /* Tiled operates blockwise; linear is packed. Also, anything
274 * we render to has to be tile-aligned. Maybe not strictly
275 * necessary, but we're not *that* pressed for memory and it
276 * makes code a lot simpler */
278 bool renderable
= res
->bind
&
279 (PIPE_BIND_RENDER_TARGET
| PIPE_BIND_DEPTH_STENCIL
);
280 bool afbc
= pres
->layout
== PAN_AFBC
;
281 bool tiled
= pres
->layout
== PAN_TILED
;
282 bool should_align
= renderable
|| tiled
;
284 /* We don't know how to specify a 2D stride for 3D textures */
286 bool can_align_stride
=
287 res
->target
!= PIPE_TEXTURE_3D
;
289 should_align
&= can_align_stride
;
292 unsigned size_2d
= 0;
294 for (unsigned l
= 0; l
<= res
->last_level
; ++l
) {
295 struct panfrost_slice
*slice
= &pres
->slices
[l
];
297 unsigned effective_width
= width
;
298 unsigned effective_height
= height
;
299 unsigned effective_depth
= depth
;
302 effective_width
= ALIGN_POT(effective_width
, 16);
303 effective_height
= ALIGN_POT(effective_height
, 16);
305 /* We don't need to align depth */
308 /* Align levels to cache-line as a performance improvement for
309 * linear/tiled and as a requirement for AFBC */
311 offset
= ALIGN_POT(offset
, 64);
313 slice
->offset
= offset
;
315 /* Compute the would-be stride */
316 unsigned stride
= bytes_per_pixel
* effective_width
;
318 /* ..but cache-line align it for performance */
319 if (can_align_stride
&& pres
->layout
== PAN_LINEAR
)
320 stride
= ALIGN_POT(stride
, 64);
322 slice
->stride
= stride
;
324 unsigned slice_one_size
= slice
->stride
* effective_height
;
325 unsigned slice_full_size
= slice_one_size
* effective_depth
;
327 slice
->size0
= slice_one_size
;
329 /* Report 2D size for 3D texturing */
332 size_2d
= slice_one_size
;
334 /* Compute AFBC sizes if necessary */
337 panfrost_afbc_header_size(width
, height
);
339 offset
+= slice
->header_size
;
342 offset
+= slice_full_size
;
344 /* Add a checksum region if necessary */
345 if (pres
->checksummed
) {
346 slice
->checksum_offset
= offset
;
348 unsigned size
= panfrost_compute_checksum_sizes(
349 slice
, width
, height
);
354 width
= u_minify(width
, 1);
355 height
= u_minify(height
, 1);
356 depth
= u_minify(depth
, 1);
359 assert(res
->array_size
);
361 if (res
->target
!= PIPE_TEXTURE_3D
) {
362 /* Arrays and cubemaps have the entire miptree duplicated */
364 pres
->cubemap_stride
= ALIGN_POT(offset
, 64);
365 *bo_size
= ALIGN_POT(pres
->cubemap_stride
* res
->array_size
, 4096);
367 /* 3D strides across the 2D layers */
368 assert(res
->array_size
== 1);
370 pres
->cubemap_stride
= size_2d
;
371 *bo_size
= ALIGN_POT(offset
, 4096);
376 panfrost_resource_create_bo(struct panfrost_screen
*screen
, struct panfrost_resource
*pres
)
378 struct pipe_resource
*res
= &pres
->base
;
380 /* Based on the usage, figure out what storing will be used. There are
383 * Linear: the basic format, bad for memory bandwidth, bad for cache
384 * use. Zero-copy, though. Renderable.
386 * Tiled: Not compressed, but cache-optimized. Expensive to write into
387 * (due to software tiling), but cheap to sample from. Ideal for most
390 * AFBC: Compressed and renderable (so always desirable for non-scanout
391 * rendertargets). Cheap to sample from. The format is black box, so we
392 * can't read/write from software.
394 * Tiling textures is almost always faster, unless we only use it once.
395 * Only a few types of resources can be tiled, ensure the bind is only
396 * (a combination of) one of the following */
398 const unsigned valid_binding
=
399 PIPE_BIND_DEPTH_STENCIL
|
400 PIPE_BIND_RENDER_TARGET
|
401 PIPE_BIND_BLENDABLE
|
402 PIPE_BIND_SAMPLER_VIEW
|
403 PIPE_BIND_DISPLAY_TARGET
;
405 bool is_2d
= (res
->target
== PIPE_TEXTURE_2D
);
406 bool should_tile
= (res
->usage
!= PIPE_USAGE_STREAM
);
407 bool must_tile
= (res
->bind
& PIPE_BIND_DEPTH_STENCIL
) && (screen
->quirks
& MIDGARD_SFBD
);
408 bool can_tile
= is_2d
&& ((res
->bind
& ~valid_binding
) == 0);
410 /* FBOs we would like to checksum, if at all possible */
411 bool can_checksum
= !(res
->bind
& ~valid_binding
);
412 bool should_checksum
= res
->bind
& PIPE_BIND_RENDER_TARGET
;
414 pres
->checksummed
= can_checksum
&& should_checksum
;
416 /* Set the layout appropriately */
417 assert(!(must_tile
&& !can_tile
)); /* must_tile => can_tile */
418 pres
->layout
= ((can_tile
&& should_tile
) || must_tile
) ? PAN_TILED
: PAN_LINEAR
;
422 panfrost_setup_slices(pres
, &bo_size
);
424 /* We create a BO immediately but don't bother mapping, since we don't
425 * care to map e.g. FBOs which the CPU probably won't touch */
426 pres
->bo
= panfrost_bo_create(screen
, bo_size
, PAN_BO_DELAY_MMAP
);
430 panfrost_resource_set_damage_region(struct pipe_screen
*screen
,
431 struct pipe_resource
*res
,
433 const struct pipe_box
*rects
)
435 struct panfrost_resource
*pres
= pan_resource(res
);
436 struct pipe_box
*damage_rect
= &pres
->damage
.biggest_rect
;
437 struct pipe_scissor_state
*damage_extent
= &pres
->damage
.extent
;
441 panfrost_resource_reset_damage(pres
);
445 /* We keep track of 2 different things here:
446 * 1 the damage extent: the quad including all damage regions. Will be
447 * used restrict the rendering area
448 * 2 the biggest damage rectangle: when there are more than one damage
449 * rect we keep the biggest one and will generate 4 wallpaper quads
450 * out of it (see panfrost_draw_wallpaper() for more details). We
451 * might want to do something smarter at some point.
453 * _________________________________
455 * | _________________________ |
456 * | | rect1| _________| |
457 * | |______|_____ | rect 3: | |
458 * | | | rect2 | | biggest | |
459 * | | |_______| | rect | |
460 * | |_______________|_________| |
462 * |_______________________________|
465 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
466 damage_extent
->minx
= 0xffff;
467 damage_extent
->miny
= 0xffff;
468 for (i
= 0; i
< nrects
; i
++) {
469 int x
= rects
[i
].x
, w
= rects
[i
].width
, h
= rects
[i
].height
;
470 int y
= res
->height0
- (rects
[i
].y
+ h
);
472 /* Clamp x,y,w,h to prevent negative values. */
484 if (damage_rect
->width
* damage_rect
->height
< w
* h
)
485 u_box_2d(x
, y
, w
, h
, damage_rect
);
487 damage_extent
->minx
= MIN2(damage_extent
->minx
, x
);
488 damage_extent
->miny
= MIN2(damage_extent
->miny
, y
);
489 damage_extent
->maxx
= MAX2(damage_extent
->maxx
,
490 MIN2(x
+ w
, res
->width0
));
491 damage_extent
->maxy
= MAX2(damage_extent
->maxy
,
492 MIN2(y
+ h
, res
->height0
));
496 static struct pipe_resource
*
497 panfrost_resource_create(struct pipe_screen
*screen
,
498 const struct pipe_resource
*template)
500 /* Make sure we're familiar */
501 switch (template->target
) {
503 case PIPE_TEXTURE_1D
:
504 case PIPE_TEXTURE_2D
:
505 case PIPE_TEXTURE_3D
:
506 case PIPE_TEXTURE_CUBE
:
507 case PIPE_TEXTURE_RECT
:
508 case PIPE_TEXTURE_2D_ARRAY
:
511 DBG("Unknown texture target %d\n", template->target
);
516 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
))
517 return panfrost_create_scanout_res(screen
, template);
519 struct panfrost_resource
*so
= rzalloc(screen
, struct panfrost_resource
);
520 struct panfrost_screen
*pscreen
= (struct panfrost_screen
*) screen
;
522 so
->base
= *template;
523 so
->base
.screen
= screen
;
524 so
->internal_format
= template->format
;
526 pipe_reference_init(&so
->base
.reference
, 1);
528 util_range_init(&so
->valid_buffer_range
);
530 panfrost_resource_create_bo(pscreen
, so
);
531 panfrost_resource_reset_damage(so
);
533 return (struct pipe_resource
*)so
;
537 panfrost_resource_destroy(struct pipe_screen
*screen
,
538 struct pipe_resource
*pt
)
540 struct panfrost_screen
*pscreen
= pan_screen(screen
);
541 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
544 renderonly_scanout_destroy(rsrc
->scanout
, pscreen
->ro
);
547 panfrost_bo_unreference(rsrc
->bo
);
549 util_range_destroy(&rsrc
->valid_buffer_range
);
554 panfrost_transfer_map(struct pipe_context
*pctx
,
555 struct pipe_resource
*resource
,
557 unsigned usage
, /* a combination of PIPE_TRANSFER_x */
558 const struct pipe_box
*box
,
559 struct pipe_transfer
**out_transfer
)
561 int bytes_per_pixel
= util_format_get_blocksize(resource
->format
);
562 struct panfrost_resource
*rsrc
= pan_resource(resource
);
563 struct panfrost_bo
*bo
= rsrc
->bo
;
565 struct panfrost_gtransfer
*transfer
= rzalloc(pctx
, struct panfrost_gtransfer
);
566 transfer
->base
.level
= level
;
567 transfer
->base
.usage
= usage
;
568 transfer
->base
.box
= *box
;
570 pipe_resource_reference(&transfer
->base
.resource
, resource
);
572 *out_transfer
= &transfer
->base
;
574 /* If we haven't already mmaped, now's the time */
575 panfrost_bo_mmap(bo
);
577 /* Check if we're bound for rendering and this is a read pixels. If so,
578 * we need to flush */
580 struct panfrost_context
*ctx
= pan_context(pctx
);
581 struct pipe_framebuffer_state
*fb
= &ctx
->pipe_framebuffer
;
583 bool is_bound
= false;
585 for (unsigned c
= 0; c
< fb
->nr_cbufs
; ++c
) {
586 /* If cbufs is NULL, we're definitely not bound here */
589 is_bound
|= fb
->cbufs
[c
]->texture
== resource
;
592 if (is_bound
&& (usage
& PIPE_TRANSFER_READ
))
595 /* TODO: Respect usage flags */
597 if (usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
) {
598 /* If the BO is used by one of the pending batches or if it's
599 * not ready yet (still accessed by one of the already flushed
600 * batches), we try to allocate a new one to avoid waiting.
602 if (panfrost_pending_batches_access_bo(ctx
, bo
) ||
603 !panfrost_bo_wait(bo
, 0, PAN_BO_ACCESS_RW
)) {
604 struct panfrost_screen
*screen
= pan_screen(pctx
->screen
);
605 /* We want the BO to be MMAPed. */
606 uint32_t flags
= bo
->flags
& ~PAN_BO_DELAY_MMAP
;
607 struct panfrost_bo
*newbo
= NULL
;
609 /* When the BO has been imported/exported, we can't
610 * replace it by another one, otherwise the
611 * importer/exporter wouldn't see the change we're
614 if (!(bo
->flags
& (PAN_BO_IMPORTED
| PAN_BO_EXPORTED
)))
615 newbo
= panfrost_bo_create(screen
, bo
->size
,
619 panfrost_bo_unreference(bo
);
623 uint32_t access
= PAN_BO_ACCESS_RW
;
625 /* Allocation failed or was impossible, let's
626 * fall back on a flush+wait.
628 panfrost_flush_batches_accessing_bo(ctx
, bo
,
630 panfrost_bo_wait(bo
, INT64_MAX
, access
);
633 } else if ((usage
& PIPE_TRANSFER_WRITE
)
634 && resource
->target
== PIPE_BUFFER
635 && !util_ranges_intersect(&rsrc
->valid_buffer_range
, box
->x
, box
->x
+ box
->width
)) {
636 /* No flush for writes to uninitialized */
637 } else if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
638 if (usage
& PIPE_TRANSFER_WRITE
) {
639 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_RW
);
640 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_RW
);
641 } else if (usage
& PIPE_TRANSFER_READ
) {
642 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_WRITE
);
643 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_WRITE
);
645 /* Why are you even mapping?! */
649 if (rsrc
->layout
!= PAN_LINEAR
) {
650 /* Non-linear resources need to be indirectly mapped */
652 if (usage
& PIPE_TRANSFER_MAP_DIRECTLY
)
655 transfer
->base
.stride
= box
->width
* bytes_per_pixel
;
656 transfer
->base
.layer_stride
= transfer
->base
.stride
* box
->height
;
657 transfer
->map
= rzalloc_size(transfer
, transfer
->base
.layer_stride
* box
->depth
);
658 assert(box
->depth
== 1);
660 if ((usage
& PIPE_TRANSFER_READ
) && rsrc
->slices
[level
].initialized
) {
661 if (rsrc
->layout
== PAN_AFBC
) {
662 DBG("Unimplemented: reads from AFBC");
663 } else if (rsrc
->layout
== PAN_TILED
) {
664 panfrost_load_tiled_image(
666 bo
->cpu
+ rsrc
->slices
[level
].offset
,
668 transfer
->base
.stride
,
669 rsrc
->slices
[level
].stride
,
670 util_format_get_blocksize(resource
->format
));
674 return transfer
->map
;
676 transfer
->base
.stride
= rsrc
->slices
[level
].stride
;
677 if (resource
->target
== PIPE_TEXTURE_3D
)
678 transfer
->base
.layer_stride
= rsrc
->slices
[level
].size0
;
680 transfer
->base
.layer_stride
= rsrc
->cubemap_stride
;
682 /* By mapping direct-write, we're implicitly already
683 * initialized (maybe), so be conservative */
685 if ((usage
& PIPE_TRANSFER_WRITE
) && (usage
& PIPE_TRANSFER_MAP_DIRECTLY
))
686 rsrc
->slices
[level
].initialized
= true;
689 + rsrc
->slices
[level
].offset
690 + transfer
->base
.box
.z
* transfer
->base
.layer_stride
691 + transfer
->base
.box
.y
* rsrc
->slices
[level
].stride
692 + transfer
->base
.box
.x
* bytes_per_pixel
;
697 panfrost_transfer_unmap(struct pipe_context
*pctx
,
698 struct pipe_transfer
*transfer
)
700 /* Gallium expects writeback here, so we tile */
702 struct panfrost_gtransfer
*trans
= pan_transfer(transfer
);
703 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) transfer
->resource
;
705 /* Mark whatever we wrote as written */
706 if (transfer
->usage
& PIPE_TRANSFER_WRITE
)
707 prsrc
->slices
[transfer
->level
].initialized
= true;
710 struct panfrost_bo
*bo
= prsrc
->bo
;
712 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
713 if (prsrc
->layout
== PAN_AFBC
) {
714 DBG("Unimplemented: writes to AFBC\n");
715 } else if (prsrc
->layout
== PAN_TILED
) {
716 assert(transfer
->box
.depth
== 1);
718 panfrost_store_tiled_image(
719 bo
->cpu
+ prsrc
->slices
[transfer
->level
].offset
,
722 prsrc
->slices
[transfer
->level
].stride
,
724 util_format_get_blocksize(prsrc
->base
.format
));
730 util_range_add(&prsrc
->base
, &prsrc
->valid_buffer_range
,
732 transfer
->box
.x
+ transfer
->box
.width
);
734 /* Derefence the resource */
735 pipe_resource_reference(&transfer
->resource
, NULL
);
737 /* Transfer itself is RALLOCed at the moment */
738 ralloc_free(transfer
);
742 panfrost_transfer_flush_region(struct pipe_context
*pctx
,
743 struct pipe_transfer
*transfer
,
744 const struct pipe_box
*box
)
746 struct panfrost_resource
*rsc
= pan_resource(transfer
->resource
);
748 if (transfer
->resource
->target
== PIPE_BUFFER
) {
749 util_range_add(&rsc
->base
, &rsc
->valid_buffer_range
,
750 transfer
->box
.x
+ box
->x
,
751 transfer
->box
.x
+ box
->x
+ box
->width
);
753 unsigned level
= transfer
->level
;
754 rsc
->slices
[level
].initialized
= true;
759 panfrost_invalidate_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
761 //DBG("TODO %s\n", __func__);
764 static enum pipe_format
765 panfrost_resource_get_internal_format(struct pipe_resource
*rsrc
) {
766 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) rsrc
;
767 return prsrc
->internal_format
;
771 panfrost_generate_mipmap(
772 struct pipe_context
*pctx
,
773 struct pipe_resource
*prsrc
,
774 enum pipe_format format
,
777 unsigned first_layer
,
780 struct panfrost_context
*ctx
= pan_context(pctx
);
781 struct panfrost_resource
*rsrc
= pan_resource(prsrc
);
783 /* Generating a mipmap invalidates the written levels, so make that
784 * explicit so we don't try to wallpaper them back and end up with
785 * u_blitter recursion */
788 for (unsigned l
= base_level
+ 1; l
<= last_level
; ++l
)
789 rsrc
->slices
[l
].initialized
= false;
791 /* Beyond that, we just delegate the hard stuff. We're careful to
792 * include flushes on both ends to make sure the data is really valid.
793 * We could be doing a lot better perf-wise, especially once we have
794 * reorder-type optimizations in place. But for now prioritize
797 panfrost_flush_batches_accessing_bo(ctx
, rsrc
->bo
, PAN_BO_ACCESS_RW
);
798 panfrost_bo_wait(rsrc
->bo
, INT64_MAX
, PAN_BO_ACCESS_RW
);
800 /* We've flushed the original buffer if needed, now trigger a blit */
802 bool blit_res
= util_gen_mipmap(
804 base_level
, last_level
,
805 first_layer
, last_layer
,
806 PIPE_TEX_FILTER_LINEAR
);
808 /* If the blit was successful, flush once more. If it wasn't, well, let
809 * the state tracker deal with it. */
812 panfrost_flush_batches_accessing_bo(ctx
, rsrc
->bo
, PAN_BO_ACCESS_WRITE
);
813 panfrost_bo_wait(rsrc
->bo
, INT64_MAX
, PAN_BO_ACCESS_WRITE
);
819 /* Computes the address to a texture at a particular slice */
822 panfrost_get_texture_address(
823 struct panfrost_resource
*rsrc
,
824 unsigned level
, unsigned face
)
826 unsigned level_offset
= rsrc
->slices
[level
].offset
;
827 unsigned face_offset
= face
* rsrc
->cubemap_stride
;
829 return rsrc
->bo
->gpu
+ level_offset
+ face_offset
;
832 /* Given a resource that has already been allocated, hint that it should use a
833 * given layout. These are suggestions, not commands; it is perfectly legal to
834 * stub out this function, but there will be performance implications. */
837 panfrost_resource_hint_layout(
838 struct panfrost_screen
*screen
,
839 struct panfrost_resource
*rsrc
,
840 enum panfrost_memory_layout layout
,
843 /* Nothing to do, although a sophisticated implementation might store
846 if (rsrc
->layout
== layout
)
849 /* We don't use the weight yet, but we should check that it's positive
850 * (semantically meaning that we should choose the given `layout`) */
855 /* Check if the preferred layout is legal for this buffer */
857 if (layout
== PAN_AFBC
) {
858 bool can_afbc
= panfrost_format_supports_afbc(rsrc
->base
.format
);
859 bool is_scanout
= rsrc
->base
.bind
&
860 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
);
862 if (!can_afbc
|| is_scanout
)
866 /* Simple heuristic so far: if the resource is uninitialized, switch to
867 * the hinted layout. If it is initialized, keep the original layout.
868 * This misses some cases where it would be beneficial to switch and
871 bool is_initialized
= false;
873 for (unsigned i
= 0; i
< MAX_MIP_LEVELS
; ++i
)
874 is_initialized
|= rsrc
->slices
[i
].initialized
;
879 /* We're uninitialized, so do a layout switch. Reinitialize slices. */
882 rsrc
->layout
= layout
;
883 panfrost_setup_slices(rsrc
, &new_size
);
885 /* If we grew in size, reallocate the BO */
886 if (new_size
> rsrc
->bo
->size
) {
887 panfrost_bo_unreference(rsrc
->bo
);
888 rsrc
->bo
= panfrost_bo_create(screen
, new_size
, PAN_BO_DELAY_MMAP
);
893 panfrost_resource_set_stencil(struct pipe_resource
*prsrc
,
894 struct pipe_resource
*stencil
)
896 pan_resource(prsrc
)->separate_stencil
= pan_resource(stencil
);
899 static struct pipe_resource
*
900 panfrost_resource_get_stencil(struct pipe_resource
*prsrc
)
902 return &pan_resource(prsrc
)->separate_stencil
->base
;
905 static const struct u_transfer_vtbl transfer_vtbl
= {
906 .resource_create
= panfrost_resource_create
,
907 .resource_destroy
= panfrost_resource_destroy
,
908 .transfer_map
= panfrost_transfer_map
,
909 .transfer_unmap
= panfrost_transfer_unmap
,
910 .transfer_flush_region
= panfrost_transfer_flush_region
,
911 .get_internal_format
= panfrost_resource_get_internal_format
,
912 .set_stencil
= panfrost_resource_set_stencil
,
913 .get_stencil
= panfrost_resource_get_stencil
,
917 panfrost_resource_screen_init(struct panfrost_screen
*pscreen
)
919 //pscreen->base.resource_create_with_modifiers =
920 // panfrost_resource_create_with_modifiers;
921 pscreen
->base
.resource_create
= u_transfer_helper_resource_create
;
922 pscreen
->base
.resource_destroy
= u_transfer_helper_resource_destroy
;
923 pscreen
->base
.resource_from_handle
= panfrost_resource_from_handle
;
924 pscreen
->base
.resource_get_handle
= panfrost_resource_get_handle
;
925 pscreen
->base
.transfer_helper
= u_transfer_helper_create(&transfer_vtbl
,
931 panfrost_resource_context_init(struct pipe_context
*pctx
)
933 pctx
->transfer_map
= u_transfer_helper_transfer_map
;
934 pctx
->transfer_unmap
= u_transfer_helper_transfer_unmap
;
935 pctx
->create_surface
= panfrost_create_surface
;
936 pctx
->surface_destroy
= panfrost_surface_destroy
;
937 pctx
->resource_copy_region
= util_resource_copy_region
;
938 pctx
->blit
= panfrost_blit
;
939 pctx
->generate_mipmap
= panfrost_generate_mipmap
;
940 pctx
->flush_resource
= panfrost_flush_resource
;
941 pctx
->invalidate_resource
= panfrost_invalidate_resource
;
942 pctx
->transfer_flush_region
= u_transfer_helper_transfer_flush_region
;
943 pctx
->buffer_subdata
= u_default_buffer_subdata
;
944 pctx
->texture_subdata
= u_default_texture_subdata
;