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 if (util_format_is_compressed(res
->format
))
321 /* ..but cache-line align it for performance */
322 if (can_align_stride
&& pres
->layout
== PAN_LINEAR
)
323 stride
= ALIGN_POT(stride
, 64);
325 slice
->stride
= stride
;
327 unsigned slice_one_size
= slice
->stride
* effective_height
;
328 unsigned slice_full_size
= slice_one_size
* effective_depth
;
330 slice
->size0
= slice_one_size
;
332 /* Report 2D size for 3D texturing */
335 size_2d
= slice_one_size
;
337 /* Compute AFBC sizes if necessary */
340 panfrost_afbc_header_size(width
, height
);
342 offset
+= slice
->header_size
;
345 offset
+= slice_full_size
;
347 /* Add a checksum region if necessary */
348 if (pres
->checksummed
) {
349 slice
->checksum_offset
= offset
;
351 unsigned size
= panfrost_compute_checksum_sizes(
352 slice
, width
, height
);
357 width
= u_minify(width
, 1);
358 height
= u_minify(height
, 1);
359 depth
= u_minify(depth
, 1);
362 assert(res
->array_size
);
364 if (res
->target
!= PIPE_TEXTURE_3D
) {
365 /* Arrays and cubemaps have the entire miptree duplicated */
367 pres
->cubemap_stride
= ALIGN_POT(offset
, 64);
368 *bo_size
= ALIGN_POT(pres
->cubemap_stride
* res
->array_size
, 4096);
370 /* 3D strides across the 2D layers */
371 assert(res
->array_size
== 1);
373 pres
->cubemap_stride
= size_2d
;
374 *bo_size
= ALIGN_POT(offset
, 4096);
379 panfrost_resource_create_bo(struct panfrost_screen
*screen
, struct panfrost_resource
*pres
)
381 struct pipe_resource
*res
= &pres
->base
;
383 /* Based on the usage, figure out what storing will be used. There are
386 * Linear: the basic format, bad for memory bandwidth, bad for cache
387 * use. Zero-copy, though. Renderable.
389 * Tiled: Not compressed, but cache-optimized. Expensive to write into
390 * (due to software tiling), but cheap to sample from. Ideal for most
393 * AFBC: Compressed and renderable (so always desirable for non-scanout
394 * rendertargets). Cheap to sample from. The format is black box, so we
395 * can't read/write from software.
397 * Tiling textures is almost always faster, unless we only use it once.
398 * Only a few types of resources can be tiled, ensure the bind is only
399 * (a combination of) one of the following */
401 const unsigned valid_binding
=
402 PIPE_BIND_DEPTH_STENCIL
|
403 PIPE_BIND_RENDER_TARGET
|
404 PIPE_BIND_BLENDABLE
|
405 PIPE_BIND_SAMPLER_VIEW
|
406 PIPE_BIND_DISPLAY_TARGET
;
408 unsigned bpp
= util_format_get_blocksizebits(res
->format
);
409 bool is_2d
= (res
->target
== PIPE_TEXTURE_2D
);
410 bool is_sane_bpp
= bpp
== 8 || bpp
== 16 || bpp
== 32 || bpp
== 64 || bpp
== 128;
411 bool should_tile
= (res
->usage
!= PIPE_USAGE_STREAM
);
412 bool must_tile
= (res
->bind
& PIPE_BIND_DEPTH_STENCIL
) && (screen
->quirks
& MIDGARD_SFBD
);
413 bool can_tile
= is_2d
&& is_sane_bpp
&& ((res
->bind
& ~valid_binding
) == 0);
415 /* FBOs we would like to checksum, if at all possible */
416 bool can_checksum
= !(res
->bind
& ~valid_binding
);
417 bool should_checksum
= res
->bind
& PIPE_BIND_RENDER_TARGET
;
419 pres
->checksummed
= can_checksum
&& should_checksum
;
421 /* Set the layout appropriately */
422 assert(!(must_tile
&& !can_tile
)); /* must_tile => can_tile */
423 pres
->layout
= ((can_tile
&& should_tile
) || must_tile
) ? PAN_TILED
: PAN_LINEAR
;
427 panfrost_setup_slices(pres
, &bo_size
);
429 /* We create a BO immediately but don't bother mapping, since we don't
430 * care to map e.g. FBOs which the CPU probably won't touch */
431 pres
->bo
= panfrost_bo_create(screen
, bo_size
, PAN_BO_DELAY_MMAP
);
435 panfrost_resource_set_damage_region(struct pipe_screen
*screen
,
436 struct pipe_resource
*res
,
438 const struct pipe_box
*rects
)
440 struct panfrost_resource
*pres
= pan_resource(res
);
441 struct pipe_box
*damage_rect
= &pres
->damage
.biggest_rect
;
442 struct pipe_scissor_state
*damage_extent
= &pres
->damage
.extent
;
446 panfrost_resource_reset_damage(pres
);
450 /* We keep track of 2 different things here:
451 * 1 the damage extent: the quad including all damage regions. Will be
452 * used restrict the rendering area
453 * 2 the biggest damage rectangle: when there are more than one damage
454 * rect we keep the biggest one and will generate 4 wallpaper quads
455 * out of it (see panfrost_draw_wallpaper() for more details). We
456 * might want to do something smarter at some point.
458 * _________________________________
460 * | _________________________ |
461 * | | rect1| _________| |
462 * | |______|_____ | rect 3: | |
463 * | | | rect2 | | biggest | |
464 * | | |_______| | rect | |
465 * | |_______________|_________| |
467 * |_______________________________|
470 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
471 damage_extent
->minx
= 0xffff;
472 damage_extent
->miny
= 0xffff;
473 for (i
= 0; i
< nrects
; i
++) {
474 int x
= rects
[i
].x
, w
= rects
[i
].width
, h
= rects
[i
].height
;
475 int y
= res
->height0
- (rects
[i
].y
+ h
);
477 /* Clamp x,y,w,h to prevent negative values. */
489 if (damage_rect
->width
* damage_rect
->height
< w
* h
)
490 u_box_2d(x
, y
, w
, h
, damage_rect
);
492 damage_extent
->minx
= MIN2(damage_extent
->minx
, x
);
493 damage_extent
->miny
= MIN2(damage_extent
->miny
, y
);
494 damage_extent
->maxx
= MAX2(damage_extent
->maxx
,
495 MIN2(x
+ w
, res
->width0
));
496 damage_extent
->maxy
= MAX2(damage_extent
->maxy
,
497 MIN2(y
+ h
, res
->height0
));
501 static struct pipe_resource
*
502 panfrost_resource_create(struct pipe_screen
*screen
,
503 const struct pipe_resource
*template)
505 /* Make sure we're familiar */
506 switch (template->target
) {
508 case PIPE_TEXTURE_1D
:
509 case PIPE_TEXTURE_2D
:
510 case PIPE_TEXTURE_3D
:
511 case PIPE_TEXTURE_CUBE
:
512 case PIPE_TEXTURE_RECT
:
513 case PIPE_TEXTURE_2D_ARRAY
:
516 DBG("Unknown texture target %d\n", template->target
);
521 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
))
522 return panfrost_create_scanout_res(screen
, template);
524 struct panfrost_resource
*so
= rzalloc(screen
, struct panfrost_resource
);
525 struct panfrost_screen
*pscreen
= (struct panfrost_screen
*) screen
;
527 so
->base
= *template;
528 so
->base
.screen
= screen
;
529 so
->internal_format
= template->format
;
531 pipe_reference_init(&so
->base
.reference
, 1);
533 util_range_init(&so
->valid_buffer_range
);
535 panfrost_resource_create_bo(pscreen
, so
);
536 panfrost_resource_reset_damage(so
);
538 return (struct pipe_resource
*)so
;
542 panfrost_resource_destroy(struct pipe_screen
*screen
,
543 struct pipe_resource
*pt
)
545 struct panfrost_screen
*pscreen
= pan_screen(screen
);
546 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
549 renderonly_scanout_destroy(rsrc
->scanout
, pscreen
->ro
);
552 panfrost_bo_unreference(rsrc
->bo
);
554 util_range_destroy(&rsrc
->valid_buffer_range
);
559 panfrost_get_layer_stride(struct panfrost_resource
*rsrc
, unsigned level
)
561 if (rsrc
->base
.target
== PIPE_TEXTURE_3D
)
562 return rsrc
->slices
[level
].size0
;
564 return rsrc
->cubemap_stride
;
568 panfrost_transfer_map(struct pipe_context
*pctx
,
569 struct pipe_resource
*resource
,
571 unsigned usage
, /* a combination of PIPE_TRANSFER_x */
572 const struct pipe_box
*box
,
573 struct pipe_transfer
**out_transfer
)
575 int bytes_per_pixel
= util_format_get_blocksize(resource
->format
);
576 struct panfrost_resource
*rsrc
= pan_resource(resource
);
577 struct panfrost_bo
*bo
= rsrc
->bo
;
579 struct panfrost_gtransfer
*transfer
= rzalloc(pctx
, struct panfrost_gtransfer
);
580 transfer
->base
.level
= level
;
581 transfer
->base
.usage
= usage
;
582 transfer
->base
.box
= *box
;
584 pipe_resource_reference(&transfer
->base
.resource
, resource
);
586 *out_transfer
= &transfer
->base
;
588 /* If we haven't already mmaped, now's the time */
589 panfrost_bo_mmap(bo
);
591 /* Check if we're bound for rendering and this is a read pixels. If so,
592 * we need to flush */
594 struct panfrost_context
*ctx
= pan_context(pctx
);
595 struct pipe_framebuffer_state
*fb
= &ctx
->pipe_framebuffer
;
597 bool is_bound
= false;
599 for (unsigned c
= 0; c
< fb
->nr_cbufs
; ++c
) {
600 /* If cbufs is NULL, we're definitely not bound here */
603 is_bound
|= fb
->cbufs
[c
]->texture
== resource
;
606 if (is_bound
&& (usage
& PIPE_TRANSFER_READ
))
609 /* TODO: Respect usage flags */
611 if (usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
) {
612 /* If the BO is used by one of the pending batches or if it's
613 * not ready yet (still accessed by one of the already flushed
614 * batches), we try to allocate a new one to avoid waiting.
616 if (panfrost_pending_batches_access_bo(ctx
, bo
) ||
617 !panfrost_bo_wait(bo
, 0, PAN_BO_ACCESS_RW
)) {
618 struct panfrost_screen
*screen
= pan_screen(pctx
->screen
);
619 /* We want the BO to be MMAPed. */
620 uint32_t flags
= bo
->flags
& ~PAN_BO_DELAY_MMAP
;
621 struct panfrost_bo
*newbo
= NULL
;
623 /* When the BO has been imported/exported, we can't
624 * replace it by another one, otherwise the
625 * importer/exporter wouldn't see the change we're
628 if (!(bo
->flags
& (PAN_BO_IMPORTED
| PAN_BO_EXPORTED
)))
629 newbo
= panfrost_bo_create(screen
, bo
->size
,
633 panfrost_bo_unreference(bo
);
637 uint32_t access
= PAN_BO_ACCESS_RW
;
639 /* Allocation failed or was impossible, let's
640 * fall back on a flush+wait.
642 panfrost_flush_batches_accessing_bo(ctx
, bo
,
644 panfrost_bo_wait(bo
, INT64_MAX
, access
);
647 } else if ((usage
& PIPE_TRANSFER_WRITE
)
648 && resource
->target
== PIPE_BUFFER
649 && !util_ranges_intersect(&rsrc
->valid_buffer_range
, box
->x
, box
->x
+ box
->width
)) {
650 /* No flush for writes to uninitialized */
651 } else if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
652 if (usage
& PIPE_TRANSFER_WRITE
) {
653 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_RW
);
654 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_RW
);
655 } else if (usage
& PIPE_TRANSFER_READ
) {
656 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_WRITE
);
657 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_WRITE
);
659 /* Why are you even mapping?! */
663 if (rsrc
->layout
!= PAN_LINEAR
) {
664 /* Non-linear resources need to be indirectly mapped */
666 if (usage
& PIPE_TRANSFER_MAP_DIRECTLY
)
669 transfer
->base
.stride
= box
->width
* bytes_per_pixel
;
670 transfer
->base
.layer_stride
= transfer
->base
.stride
* box
->height
;
671 transfer
->map
= rzalloc_size(transfer
, transfer
->base
.layer_stride
* box
->depth
);
672 assert(box
->depth
== 1);
674 if ((usage
& PIPE_TRANSFER_READ
) && rsrc
->slices
[level
].initialized
) {
675 if (rsrc
->layout
== PAN_AFBC
) {
676 DBG("Unimplemented: reads from AFBC");
677 } else if (rsrc
->layout
== PAN_TILED
) {
678 panfrost_load_tiled_image(
680 bo
->cpu
+ rsrc
->slices
[level
].offset
,
681 box
->x
, box
->y
, box
->width
, box
->height
,
682 transfer
->base
.stride
,
683 rsrc
->slices
[level
].stride
,
688 return transfer
->map
;
690 transfer
->base
.stride
= rsrc
->slices
[level
].stride
;
691 transfer
->base
.layer_stride
= panfrost_get_layer_stride(rsrc
, level
);
693 /* By mapping direct-write, we're implicitly already
694 * initialized (maybe), so be conservative */
696 if ((usage
& PIPE_TRANSFER_WRITE
) && (usage
& PIPE_TRANSFER_MAP_DIRECTLY
))
697 rsrc
->slices
[level
].initialized
= true;
700 + rsrc
->slices
[level
].offset
701 + transfer
->base
.box
.z
* transfer
->base
.layer_stride
702 + transfer
->base
.box
.y
* rsrc
->slices
[level
].stride
703 + transfer
->base
.box
.x
* bytes_per_pixel
;
708 panfrost_transfer_unmap(struct pipe_context
*pctx
,
709 struct pipe_transfer
*transfer
)
711 /* Gallium expects writeback here, so we tile */
713 struct panfrost_gtransfer
*trans
= pan_transfer(transfer
);
714 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) transfer
->resource
;
716 /* Mark whatever we wrote as written */
717 if (transfer
->usage
& PIPE_TRANSFER_WRITE
)
718 prsrc
->slices
[transfer
->level
].initialized
= true;
721 struct panfrost_bo
*bo
= prsrc
->bo
;
723 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
724 if (prsrc
->layout
== PAN_AFBC
) {
725 DBG("Unimplemented: writes to AFBC\n");
726 } else if (prsrc
->layout
== PAN_TILED
) {
727 assert(transfer
->box
.depth
== 1);
729 panfrost_store_tiled_image(
730 bo
->cpu
+ prsrc
->slices
[transfer
->level
].offset
,
732 transfer
->box
.x
, transfer
->box
.y
,
733 transfer
->box
.width
, transfer
->box
.height
,
734 prsrc
->slices
[transfer
->level
].stride
,
742 util_range_add(&prsrc
->base
, &prsrc
->valid_buffer_range
,
744 transfer
->box
.x
+ transfer
->box
.width
);
746 /* Derefence the resource */
747 pipe_resource_reference(&transfer
->resource
, NULL
);
749 /* Transfer itself is RALLOCed at the moment */
750 ralloc_free(transfer
);
754 panfrost_transfer_flush_region(struct pipe_context
*pctx
,
755 struct pipe_transfer
*transfer
,
756 const struct pipe_box
*box
)
758 struct panfrost_resource
*rsc
= pan_resource(transfer
->resource
);
760 if (transfer
->resource
->target
== PIPE_BUFFER
) {
761 util_range_add(&rsc
->base
, &rsc
->valid_buffer_range
,
762 transfer
->box
.x
+ box
->x
,
763 transfer
->box
.x
+ box
->x
+ box
->width
);
765 unsigned level
= transfer
->level
;
766 rsc
->slices
[level
].initialized
= true;
771 panfrost_invalidate_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
773 //DBG("TODO %s\n", __func__);
776 static enum pipe_format
777 panfrost_resource_get_internal_format(struct pipe_resource
*rsrc
) {
778 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) rsrc
;
779 return prsrc
->internal_format
;
783 panfrost_generate_mipmap(
784 struct pipe_context
*pctx
,
785 struct pipe_resource
*prsrc
,
786 enum pipe_format format
,
789 unsigned first_layer
,
792 struct panfrost_context
*ctx
= pan_context(pctx
);
793 struct panfrost_resource
*rsrc
= pan_resource(prsrc
);
795 /* Generating a mipmap invalidates the written levels, so make that
796 * explicit so we don't try to wallpaper them back and end up with
797 * u_blitter recursion */
800 for (unsigned l
= base_level
+ 1; l
<= last_level
; ++l
)
801 rsrc
->slices
[l
].initialized
= false;
803 /* Beyond that, we just delegate the hard stuff. We're careful to
804 * include flushes on both ends to make sure the data is really valid.
805 * We could be doing a lot better perf-wise, especially once we have
806 * reorder-type optimizations in place. But for now prioritize
809 panfrost_flush_batches_accessing_bo(ctx
, rsrc
->bo
, PAN_BO_ACCESS_RW
);
810 panfrost_bo_wait(rsrc
->bo
, INT64_MAX
, PAN_BO_ACCESS_RW
);
812 /* We've flushed the original buffer if needed, now trigger a blit */
814 bool blit_res
= util_gen_mipmap(
816 base_level
, last_level
,
817 first_layer
, last_layer
,
818 PIPE_TEX_FILTER_LINEAR
);
820 /* If the blit was successful, flush once more. If it wasn't, well, let
821 * the state tracker deal with it. */
824 panfrost_flush_batches_accessing_bo(ctx
, rsrc
->bo
, PAN_BO_ACCESS_WRITE
);
825 panfrost_bo_wait(rsrc
->bo
, INT64_MAX
, PAN_BO_ACCESS_WRITE
);
831 /* Computes the address to a texture at a particular slice */
834 panfrost_get_texture_address(
835 struct panfrost_resource
*rsrc
,
836 unsigned level
, unsigned face
)
838 unsigned level_offset
= rsrc
->slices
[level
].offset
;
839 unsigned face_offset
= face
* panfrost_get_layer_stride(rsrc
, level
);
841 return rsrc
->bo
->gpu
+ level_offset
+ face_offset
;
844 /* Given a resource that has already been allocated, hint that it should use a
845 * given layout. These are suggestions, not commands; it is perfectly legal to
846 * stub out this function, but there will be performance implications. */
849 panfrost_resource_hint_layout(
850 struct panfrost_screen
*screen
,
851 struct panfrost_resource
*rsrc
,
852 enum panfrost_memory_layout layout
,
855 /* Nothing to do, although a sophisticated implementation might store
858 if (rsrc
->layout
== layout
)
861 /* We don't use the weight yet, but we should check that it's positive
862 * (semantically meaning that we should choose the given `layout`) */
867 /* Check if the preferred layout is legal for this buffer */
869 if (layout
== PAN_AFBC
) {
870 bool can_afbc
= panfrost_format_supports_afbc(rsrc
->base
.format
);
871 bool is_scanout
= rsrc
->base
.bind
&
872 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
);
874 if (!can_afbc
|| is_scanout
)
878 /* Simple heuristic so far: if the resource is uninitialized, switch to
879 * the hinted layout. If it is initialized, keep the original layout.
880 * This misses some cases where it would be beneficial to switch and
883 bool is_initialized
= false;
885 for (unsigned i
= 0; i
< MAX_MIP_LEVELS
; ++i
)
886 is_initialized
|= rsrc
->slices
[i
].initialized
;
891 /* We're uninitialized, so do a layout switch. Reinitialize slices. */
894 rsrc
->layout
= layout
;
895 panfrost_setup_slices(rsrc
, &new_size
);
897 /* If we grew in size, reallocate the BO */
898 if (new_size
> rsrc
->bo
->size
) {
899 panfrost_bo_unreference(rsrc
->bo
);
900 rsrc
->bo
= panfrost_bo_create(screen
, new_size
, PAN_BO_DELAY_MMAP
);
905 panfrost_resource_set_stencil(struct pipe_resource
*prsrc
,
906 struct pipe_resource
*stencil
)
908 pan_resource(prsrc
)->separate_stencil
= pan_resource(stencil
);
911 static struct pipe_resource
*
912 panfrost_resource_get_stencil(struct pipe_resource
*prsrc
)
914 return &pan_resource(prsrc
)->separate_stencil
->base
;
917 static const struct u_transfer_vtbl transfer_vtbl
= {
918 .resource_create
= panfrost_resource_create
,
919 .resource_destroy
= panfrost_resource_destroy
,
920 .transfer_map
= panfrost_transfer_map
,
921 .transfer_unmap
= panfrost_transfer_unmap
,
922 .transfer_flush_region
= panfrost_transfer_flush_region
,
923 .get_internal_format
= panfrost_resource_get_internal_format
,
924 .set_stencil
= panfrost_resource_set_stencil
,
925 .get_stencil
= panfrost_resource_get_stencil
,
929 panfrost_resource_screen_init(struct panfrost_screen
*pscreen
)
931 //pscreen->base.resource_create_with_modifiers =
932 // panfrost_resource_create_with_modifiers;
933 pscreen
->base
.resource_create
= u_transfer_helper_resource_create
;
934 pscreen
->base
.resource_destroy
= u_transfer_helper_resource_destroy
;
935 pscreen
->base
.resource_from_handle
= panfrost_resource_from_handle
;
936 pscreen
->base
.resource_get_handle
= panfrost_resource_get_handle
;
937 pscreen
->base
.transfer_helper
= u_transfer_helper_create(&transfer_vtbl
,
943 panfrost_resource_context_init(struct pipe_context
*pctx
)
945 pctx
->transfer_map
= u_transfer_helper_transfer_map
;
946 pctx
->transfer_unmap
= u_transfer_helper_transfer_unmap
;
947 pctx
->create_surface
= panfrost_create_surface
;
948 pctx
->surface_destroy
= panfrost_surface_destroy
;
949 pctx
->resource_copy_region
= util_resource_copy_region
;
950 pctx
->blit
= panfrost_blit
;
951 pctx
->generate_mipmap
= panfrost_generate_mipmap
;
952 pctx
->flush_resource
= panfrost_flush_resource
;
953 pctx
->invalidate_resource
= panfrost_invalidate_resource
;
954 pctx
->transfer_flush_region
= u_transfer_helper_transfer_flush_region
;
955 pctx
->buffer_subdata
= u_default_buffer_subdata
;
956 pctx
->texture_subdata
= u_default_texture_subdata
;