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/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"
44 #include "pan_context.h"
45 #include "pan_screen.h"
46 #include "pan_resource.h"
48 #include "pan_tiling.h"
51 panfrost_resource_reset_damage(struct panfrost_resource
*pres
)
53 /* We set the damage extent to the full resource size but keep the
54 * damage box empty so that the FB content is reloaded by default.
56 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
57 pres
->damage
.extent
.maxx
= pres
->base
.width0
;
58 pres
->damage
.extent
.maxy
= pres
->base
.height0
;
61 static struct pipe_resource
*
62 panfrost_resource_from_handle(struct pipe_screen
*pscreen
,
63 const struct pipe_resource
*templat
,
64 struct winsys_handle
*whandle
,
67 struct panfrost_screen
*screen
= pan_screen(pscreen
);
68 struct panfrost_resource
*rsc
;
69 struct pipe_resource
*prsc
;
71 assert(whandle
->type
== WINSYS_HANDLE_TYPE_FD
);
73 rsc
= rzalloc(pscreen
, struct panfrost_resource
);
81 pipe_reference_init(&prsc
->reference
, 1);
82 prsc
->screen
= pscreen
;
84 rsc
->bo
= panfrost_bo_import(screen
, whandle
->handle
);
85 rsc
->slices
[0].stride
= whandle
->stride
;
86 rsc
->slices
[0].initialized
= true;
87 panfrost_resource_reset_damage(rsc
);
91 renderonly_create_gpu_import_for_resource(prsc
, screen
->ro
, NULL
);
92 /* failure is expected in some cases.. */
99 panfrost_resource_get_handle(struct pipe_screen
*pscreen
,
100 struct pipe_context
*ctx
,
101 struct pipe_resource
*pt
,
102 struct winsys_handle
*handle
,
105 struct panfrost_screen
*screen
= pan_screen(pscreen
);
106 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
107 struct renderonly_scanout
*scanout
= rsrc
->scanout
;
109 handle
->modifier
= DRM_FORMAT_MOD_INVALID
;
111 if (handle
->type
== WINSYS_HANDLE_TYPE_SHARED
) {
113 } else if (handle
->type
== WINSYS_HANDLE_TYPE_KMS
) {
114 if (renderonly_get_handle(scanout
, handle
))
117 handle
->handle
= rsrc
->bo
->gem_handle
;
118 handle
->stride
= rsrc
->slices
[0].stride
;
120 } else if (handle
->type
== WINSYS_HANDLE_TYPE_FD
) {
122 struct drm_prime_handle args
= {
123 .handle
= scanout
->handle
,
124 .flags
= DRM_CLOEXEC
,
127 int ret
= drmIoctl(screen
->ro
->kms_fd
, DRM_IOCTL_PRIME_HANDLE_TO_FD
, &args
);
131 handle
->stride
= scanout
->stride
;
132 handle
->handle
= args
.fd
;
136 int fd
= panfrost_bo_export(screen
, rsrc
->bo
);
142 handle
->stride
= rsrc
->slices
[0].stride
;
151 panfrost_flush_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
153 //DBG("TODO %s\n", __func__);
156 static struct pipe_surface
*
157 panfrost_create_surface(struct pipe_context
*pipe
,
158 struct pipe_resource
*pt
,
159 const struct pipe_surface
*surf_tmpl
)
161 struct pipe_surface
*ps
= NULL
;
163 ps
= rzalloc(pipe
, struct pipe_surface
);
166 pipe_reference_init(&ps
->reference
, 1);
167 pipe_resource_reference(&ps
->texture
, pt
);
169 ps
->format
= surf_tmpl
->format
;
171 if (pt
->target
!= PIPE_BUFFER
) {
172 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
173 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
174 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
175 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
176 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
177 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
179 /* setting width as number of elements should get us correct renderbuffer width */
180 ps
->width
= surf_tmpl
->u
.buf
.last_element
- surf_tmpl
->u
.buf
.first_element
+ 1;
181 ps
->height
= pt
->height0
;
182 ps
->u
.buf
.first_element
= surf_tmpl
->u
.buf
.first_element
;
183 ps
->u
.buf
.last_element
= surf_tmpl
->u
.buf
.last_element
;
184 assert(ps
->u
.buf
.first_element
<= ps
->u
.buf
.last_element
);
185 assert(ps
->u
.buf
.last_element
< ps
->width
);
193 panfrost_surface_destroy(struct pipe_context
*pipe
,
194 struct pipe_surface
*surf
)
196 assert(surf
->texture
);
197 pipe_resource_reference(&surf
->texture
, NULL
);
201 static struct pipe_resource
*
202 panfrost_create_scanout_res(struct pipe_screen
*screen
,
203 const struct pipe_resource
*template)
205 struct panfrost_screen
*pscreen
= pan_screen(screen
);
206 struct pipe_resource scanout_templat
= *template;
207 struct renderonly_scanout
*scanout
;
208 struct winsys_handle handle
;
209 struct pipe_resource
*res
;
211 scanout
= renderonly_scanout_for_resource(&scanout_templat
,
212 pscreen
->ro
, &handle
);
216 assert(handle
.type
== WINSYS_HANDLE_TYPE_FD
);
217 /* TODO: handle modifiers? */
218 res
= screen
->resource_from_handle(screen
, template, &handle
,
219 PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE
);
220 close(handle
.handle
);
224 struct panfrost_resource
*pres
= pan_resource(res
);
226 pres
->scanout
= scanout
;
231 /* Computes sizes for checksumming, which is 8 bytes per 16x16 tile */
233 #define CHECKSUM_TILE_WIDTH 16
234 #define CHECKSUM_TILE_HEIGHT 16
235 #define CHECKSUM_BYTES_PER_TILE 8
238 panfrost_compute_checksum_sizes(
239 struct panfrost_slice
*slice
,
243 unsigned aligned_width
= ALIGN_POT(width
, CHECKSUM_TILE_WIDTH
);
244 unsigned aligned_height
= ALIGN_POT(height
, CHECKSUM_TILE_HEIGHT
);
246 unsigned tile_count_x
= aligned_width
/ CHECKSUM_TILE_WIDTH
;
247 unsigned tile_count_y
= aligned_height
/ CHECKSUM_TILE_HEIGHT
;
249 slice
->checksum_stride
= tile_count_x
* CHECKSUM_BYTES_PER_TILE
;
251 return slice
->checksum_stride
* tile_count_y
;
254 /* Setup the mip tree given a particular layout, possibly with checksumming */
257 panfrost_setup_slices(struct panfrost_resource
*pres
, size_t *bo_size
)
259 struct pipe_resource
*res
= &pres
->base
;
260 unsigned width
= res
->width0
;
261 unsigned height
= res
->height0
;
262 unsigned depth
= res
->depth0
;
263 unsigned bytes_per_pixel
= util_format_get_blocksize(res
->format
);
267 /* Tiled operates blockwise; linear is packed. Also, anything
268 * we render to has to be tile-aligned. Maybe not strictly
269 * necessary, but we're not *that* pressed for memory and it
270 * makes code a lot simpler */
272 bool renderable
= res
->bind
&
273 (PIPE_BIND_RENDER_TARGET
| PIPE_BIND_DEPTH_STENCIL
);
274 bool afbc
= pres
->layout
== PAN_AFBC
;
275 bool tiled
= pres
->layout
== PAN_TILED
;
276 bool should_align
= renderable
|| tiled
;
278 /* We don't know how to specify a 2D stride for 3D textures */
280 bool can_align_stride
=
281 res
->target
!= PIPE_TEXTURE_3D
;
283 should_align
&= can_align_stride
;
286 unsigned size_2d
= 0;
288 for (unsigned l
= 0; l
<= res
->last_level
; ++l
) {
289 struct panfrost_slice
*slice
= &pres
->slices
[l
];
291 unsigned effective_width
= width
;
292 unsigned effective_height
= height
;
293 unsigned effective_depth
= depth
;
296 effective_width
= ALIGN_POT(effective_width
, 16);
297 effective_height
= ALIGN_POT(effective_height
, 16);
299 /* We don't need to align depth */
302 /* Align levels to cache-line as a performance improvement for
303 * linear/tiled and as a requirement for AFBC */
305 offset
= ALIGN_POT(offset
, 64);
307 slice
->offset
= offset
;
309 /* Compute the would-be stride */
310 unsigned stride
= bytes_per_pixel
* effective_width
;
312 /* ..but cache-line align it for performance */
313 if (can_align_stride
&& pres
->layout
== PAN_LINEAR
)
314 stride
= ALIGN_POT(stride
, 64);
316 slice
->stride
= stride
;
318 unsigned slice_one_size
= slice
->stride
* effective_height
;
319 unsigned slice_full_size
= slice_one_size
* effective_depth
;
321 /* Report 2D size for 3D texturing */
324 size_2d
= slice_one_size
;
326 /* Compute AFBC sizes if necessary */
329 panfrost_afbc_header_size(width
, height
);
331 offset
+= slice
->header_size
;
334 offset
+= slice_full_size
;
336 /* Add a checksum region if necessary */
337 if (pres
->checksummed
) {
338 slice
->checksum_offset
= offset
;
340 unsigned size
= panfrost_compute_checksum_sizes(
341 slice
, width
, height
);
346 width
= u_minify(width
, 1);
347 height
= u_minify(height
, 1);
348 depth
= u_minify(depth
, 1);
351 assert(res
->array_size
);
353 if (res
->target
!= PIPE_TEXTURE_3D
) {
354 /* Arrays and cubemaps have the entire miptree duplicated */
356 pres
->cubemap_stride
= ALIGN_POT(offset
, 64);
357 *bo_size
= ALIGN_POT(pres
->cubemap_stride
* res
->array_size
, 4096);
359 /* 3D strides across the 2D layers */
360 assert(res
->array_size
== 1);
362 pres
->cubemap_stride
= size_2d
;
363 *bo_size
= ALIGN_POT(offset
, 4096);
368 panfrost_resource_create_bo(struct panfrost_screen
*screen
, struct panfrost_resource
*pres
)
370 struct pipe_resource
*res
= &pres
->base
;
372 /* Based on the usage, figure out what storing will be used. There are
375 * Linear: the basic format, bad for memory bandwidth, bad for cache
376 * use. Zero-copy, though. Renderable.
378 * Tiled: Not compressed, but cache-optimized. Expensive to write into
379 * (due to software tiling), but cheap to sample from. Ideal for most
382 * AFBC: Compressed and renderable (so always desirable for non-scanout
383 * rendertargets). Cheap to sample from. The format is black box, so we
384 * can't read/write from software.
387 /* Tiling textures is almost always faster, unless we only use it once */
389 bool is_texture
= (res
->bind
& PIPE_BIND_SAMPLER_VIEW
);
390 bool is_2d
= res
->depth0
== 1 && res
->array_size
== 1;
391 bool is_streaming
= (res
->usage
!= PIPE_USAGE_STREAM
);
393 /* TODO: Reenable tiling on SFBD systems when we support rendering to
394 * tiled formats with SFBD */
395 bool should_tile
= is_streaming
&& is_texture
&& is_2d
&& !screen
->require_sfbd
;
397 /* Depth/stencil can't be tiled, only linear or AFBC */
398 should_tile
&= !(res
->bind
& PIPE_BIND_DEPTH_STENCIL
);
400 /* FBOs we would like to checksum, if at all possible */
401 bool can_checksum
= !(res
->bind
& (PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
));
402 bool should_checksum
= res
->bind
& PIPE_BIND_RENDER_TARGET
;
404 pres
->checksummed
= can_checksum
&& should_checksum
;
406 /* Set the layout appropriately */
407 pres
->layout
= should_tile
? PAN_TILED
: PAN_LINEAR
;
411 panfrost_setup_slices(pres
, &bo_size
);
413 /* We create a BO immediately but don't bother mapping, since we don't
414 * care to map e.g. FBOs which the CPU probably won't touch */
415 pres
->bo
= panfrost_bo_create(screen
, bo_size
, PAN_ALLOCATE_DELAY_MMAP
);
419 panfrost_resource_set_damage_region(struct pipe_screen
*screen
,
420 struct pipe_resource
*res
,
422 const struct pipe_box
*rects
)
424 struct panfrost_resource
*pres
= pan_resource(res
);
425 struct pipe_box
*damage_rect
= &pres
->damage
.biggest_rect
;
426 struct pipe_scissor_state
*damage_extent
= &pres
->damage
.extent
;
430 panfrost_resource_reset_damage(pres
);
434 /* We keep track of 2 different things here:
435 * 1 the damage extent: the quad including all damage regions. Will be
436 * used restrict the rendering area
437 * 2 the biggest damage rectangle: when there are more than one damage
438 * rect we keep the biggest one and will generate 4 wallpaper quads
439 * out of it (see panfrost_draw_wallpaper() for more details). We
440 * might want to do something smarter at some point.
442 * _________________________________
444 * | _________________________ |
445 * | | rect1| _________| |
446 * | |______|_____ | rect 3: | |
447 * | | | rect2 | | biggest | |
448 * | | |_______| | rect | |
449 * | |_______________|_________| |
451 * |_______________________________|
454 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
455 damage_extent
->minx
= 0xffff;
456 damage_extent
->miny
= 0xffff;
457 for (i
= 0; i
< nrects
; i
++) {
458 int x
= rects
[i
].x
, w
= rects
[i
].width
, h
= rects
[i
].height
;
459 int y
= res
->height0
- (rects
[i
].y
+ h
);
461 /* Clamp x,y,w,h to prevent negative values. */
473 if (damage_rect
->width
* damage_rect
->height
< w
* h
)
474 u_box_2d(x
, y
, w
, h
, damage_rect
);
476 damage_extent
->minx
= MIN2(damage_extent
->minx
, x
);
477 damage_extent
->miny
= MIN2(damage_extent
->miny
, y
);
478 damage_extent
->maxx
= MAX2(damage_extent
->maxx
,
479 MIN2(x
+ w
, res
->width0
));
480 damage_extent
->maxy
= MAX2(damage_extent
->maxy
,
481 MIN2(y
+ h
, res
->height0
));
485 static struct pipe_resource
*
486 panfrost_resource_create(struct pipe_screen
*screen
,
487 const struct pipe_resource
*template)
489 /* Make sure we're familiar */
490 switch (template->target
) {
492 case PIPE_TEXTURE_1D
:
493 case PIPE_TEXTURE_2D
:
494 case PIPE_TEXTURE_3D
:
495 case PIPE_TEXTURE_CUBE
:
496 case PIPE_TEXTURE_RECT
:
497 case PIPE_TEXTURE_2D_ARRAY
:
500 DBG("Unknown texture target %d\n", template->target
);
505 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
))
506 return panfrost_create_scanout_res(screen
, template);
508 struct panfrost_resource
*so
= rzalloc(screen
, struct panfrost_resource
);
509 struct panfrost_screen
*pscreen
= (struct panfrost_screen
*) screen
;
511 so
->base
= *template;
512 so
->base
.screen
= screen
;
514 pipe_reference_init(&so
->base
.reference
, 1);
516 util_range_init(&so
->valid_buffer_range
);
518 panfrost_resource_create_bo(pscreen
, so
);
519 panfrost_resource_reset_damage(so
);
521 return (struct pipe_resource
*)so
;
525 panfrost_bo_reference(struct panfrost_bo
*bo
)
528 pipe_reference(NULL
, &bo
->reference
);
532 panfrost_bo_unreference(struct pipe_screen
*screen
, struct panfrost_bo
*bo
)
537 /* When the reference count goes to zero, we need to cleanup */
539 if (pipe_reference(&bo
->reference
, NULL
))
540 panfrost_bo_release(pan_screen(screen
), bo
, true);
544 panfrost_resource_destroy(struct pipe_screen
*screen
,
545 struct pipe_resource
*pt
)
547 struct panfrost_screen
*pscreen
= pan_screen(screen
);
548 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
551 renderonly_scanout_destroy(rsrc
->scanout
, pscreen
->ro
);
554 panfrost_bo_unreference(screen
, rsrc
->bo
);
556 util_range_destroy(&rsrc
->valid_buffer_range
);
561 panfrost_transfer_map(struct pipe_context
*pctx
,
562 struct pipe_resource
*resource
,
564 unsigned usage
, /* a combination of PIPE_TRANSFER_x */
565 const struct pipe_box
*box
,
566 struct pipe_transfer
**out_transfer
)
568 int bytes_per_pixel
= util_format_get_blocksize(resource
->format
);
569 struct panfrost_resource
*rsrc
= pan_resource(resource
);
570 struct panfrost_bo
*bo
= rsrc
->bo
;
572 struct panfrost_gtransfer
*transfer
= rzalloc(pctx
, struct panfrost_gtransfer
);
573 transfer
->base
.level
= level
;
574 transfer
->base
.usage
= usage
;
575 transfer
->base
.box
= *box
;
577 pipe_resource_reference(&transfer
->base
.resource
, resource
);
579 *out_transfer
= &transfer
->base
;
581 /* If we haven't already mmaped, now's the time */
584 struct panfrost_screen
*screen
= pan_screen(pctx
->screen
);
585 panfrost_bo_mmap(screen
, bo
);
588 /* Check if we're bound for rendering and this is a read pixels. If so,
589 * we need to flush */
591 struct panfrost_context
*ctx
= pan_context(pctx
);
592 struct pipe_framebuffer_state
*fb
= &ctx
->pipe_framebuffer
;
594 bool is_bound
= false;
596 for (unsigned c
= 0; c
< fb
->nr_cbufs
; ++c
) {
597 /* If cbufs is NULL, we're definitely not bound here */
600 is_bound
|= fb
->cbufs
[c
]->texture
== resource
;
603 if (is_bound
&& (usage
& PIPE_TRANSFER_READ
)) {
605 panfrost_flush(pctx
, NULL
, PIPE_FLUSH_END_OF_FRAME
);
608 /* TODO: Respect usage flags */
610 if (usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
) {
611 /* TODO: reallocate */
612 //printf("debug: Missed reallocate\n");
613 } else if ((usage
& PIPE_TRANSFER_WRITE
)
614 && resource
->target
== PIPE_BUFFER
615 && !util_ranges_intersect(&rsrc
->valid_buffer_range
, box
->x
, box
->x
+ box
->width
)) {
616 /* No flush for writes to uninitialized */
617 } else if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
618 if (usage
& PIPE_TRANSFER_WRITE
) {
619 /* STUB: flush reading */
620 //printf("debug: missed reading flush %d\n", resource->target);
621 } else if (usage
& PIPE_TRANSFER_READ
) {
622 /* STUB: flush writing */
623 //printf("debug: missed writing flush %d (%d-%d)\n", resource->target, box->x, box->x + box->width);
625 /* Why are you even mapping?! */
629 if (rsrc
->layout
!= PAN_LINEAR
) {
630 /* Non-linear resources need to be indirectly mapped */
632 if (usage
& PIPE_TRANSFER_MAP_DIRECTLY
)
635 transfer
->base
.stride
= box
->width
* bytes_per_pixel
;
636 transfer
->base
.layer_stride
= transfer
->base
.stride
* box
->height
;
637 transfer
->map
= rzalloc_size(transfer
, transfer
->base
.layer_stride
* box
->depth
);
638 assert(box
->depth
== 1);
640 if ((usage
& PIPE_TRANSFER_READ
) && rsrc
->slices
[level
].initialized
) {
641 if (rsrc
->layout
== PAN_AFBC
) {
642 DBG("Unimplemented: reads from AFBC");
643 } else if (rsrc
->layout
== PAN_TILED
) {
644 panfrost_load_tiled_image(
646 bo
->cpu
+ rsrc
->slices
[level
].offset
,
648 transfer
->base
.stride
,
649 rsrc
->slices
[level
].stride
,
650 util_format_get_blocksize(resource
->format
));
654 return transfer
->map
;
656 transfer
->base
.stride
= rsrc
->slices
[level
].stride
;
657 transfer
->base
.layer_stride
= rsrc
->cubemap_stride
;
659 /* By mapping direct-write, we're implicitly already
660 * initialized (maybe), so be conservative */
662 if ((usage
& PIPE_TRANSFER_WRITE
) && (usage
& PIPE_TRANSFER_MAP_DIRECTLY
))
663 rsrc
->slices
[level
].initialized
= true;
666 + rsrc
->slices
[level
].offset
667 + transfer
->base
.box
.z
* rsrc
->cubemap_stride
668 + transfer
->base
.box
.y
* rsrc
->slices
[level
].stride
669 + transfer
->base
.box
.x
* bytes_per_pixel
;
674 panfrost_transfer_unmap(struct pipe_context
*pctx
,
675 struct pipe_transfer
*transfer
)
677 /* Gallium expects writeback here, so we tile */
679 struct panfrost_gtransfer
*trans
= pan_transfer(transfer
);
680 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) transfer
->resource
;
682 /* Mark whatever we wrote as written */
683 if (transfer
->usage
& PIPE_TRANSFER_WRITE
)
684 prsrc
->slices
[transfer
->level
].initialized
= true;
687 struct panfrost_bo
*bo
= prsrc
->bo
;
689 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
690 if (prsrc
->layout
== PAN_AFBC
) {
691 DBG("Unimplemented: writes to AFBC\n");
692 } else if (prsrc
->layout
== PAN_TILED
) {
693 assert(transfer
->box
.depth
== 1);
695 panfrost_store_tiled_image(
696 bo
->cpu
+ prsrc
->slices
[transfer
->level
].offset
,
699 prsrc
->slices
[transfer
->level
].stride
,
701 util_format_get_blocksize(prsrc
->base
.format
));
707 util_range_add(&prsrc
->valid_buffer_range
,
709 transfer
->box
.x
+ transfer
->box
.width
);
711 /* Derefence the resource */
712 pipe_resource_reference(&transfer
->resource
, NULL
);
714 /* Transfer itself is RALLOCed at the moment */
715 ralloc_free(transfer
);
719 panfrost_transfer_flush_region(struct pipe_context
*pctx
,
720 struct pipe_transfer
*transfer
,
721 const struct pipe_box
*box
)
723 struct panfrost_resource
*rsc
= pan_resource(transfer
->resource
);
725 if (transfer
->resource
->target
== PIPE_BUFFER
) {
726 util_range_add(&rsc
->valid_buffer_range
,
727 transfer
->box
.x
+ box
->x
,
728 transfer
->box
.x
+ box
->x
+ box
->width
);
730 unsigned level
= transfer
->level
;
731 rsc
->slices
[level
].initialized
= true;
736 panfrost_invalidate_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
738 //DBG("TODO %s\n", __func__);
741 static enum pipe_format
742 panfrost_resource_get_internal_format(struct pipe_resource
*prsrc
) {
743 return prsrc
->format
;
747 panfrost_generate_mipmap(
748 struct pipe_context
*pctx
,
749 struct pipe_resource
*prsrc
,
750 enum pipe_format format
,
753 unsigned first_layer
,
756 struct panfrost_context
*ctx
= pan_context(pctx
);
757 struct panfrost_resource
*rsrc
= pan_resource(prsrc
);
759 /* Generating a mipmap invalidates the written levels, so make that
760 * explicit so we don't try to wallpaper them back and end up with
761 * u_blitter recursion */
764 for (unsigned l
= base_level
+ 1; l
<= last_level
; ++l
)
765 rsrc
->slices
[l
].initialized
= false;
767 /* Beyond that, we just delegate the hard stuff. We're careful to
768 * include flushes on both ends to make sure the data is really valid.
769 * We could be doing a lot better perf-wise, especially once we have
770 * reorder-type optimizations in place. But for now prioritize
773 struct panfrost_batch
*batch
= panfrost_get_batch_for_fbo(ctx
);
774 bool has_draws
= batch
->last_job
.gpu
;
777 panfrost_flush(pctx
, NULL
, PIPE_FLUSH_END_OF_FRAME
);
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(pctx
, NULL
, PIPE_FLUSH_END_OF_FRAME
);
796 /* Computes the address to a texture at a particular slice */
799 panfrost_get_texture_address(
800 struct panfrost_resource
*rsrc
,
801 unsigned level
, unsigned face
)
803 unsigned level_offset
= rsrc
->slices
[level
].offset
;
804 unsigned face_offset
= face
* rsrc
->cubemap_stride
;
806 return rsrc
->bo
->gpu
+ level_offset
+ face_offset
;
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 panfrost_memory_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
== PAN_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_release(screen
, rsrc
->bo
, true);
865 rsrc
->bo
= panfrost_bo_create(screen
, new_size
, PAN_ALLOCATE_DELAY_MMAP
);
870 panfrost_resource_set_stencil(struct pipe_resource
*prsrc
,
871 struct pipe_resource
*stencil
)
873 pan_resource(prsrc
)->separate_stencil
= pan_resource(stencil
);
876 static struct pipe_resource
*
877 panfrost_resource_get_stencil(struct pipe_resource
*prsrc
)
879 return &pan_resource(prsrc
)->separate_stencil
->base
;
882 static const struct u_transfer_vtbl transfer_vtbl
= {
883 .resource_create
= panfrost_resource_create
,
884 .resource_destroy
= panfrost_resource_destroy
,
885 .transfer_map
= panfrost_transfer_map
,
886 .transfer_unmap
= panfrost_transfer_unmap
,
887 .transfer_flush_region
= panfrost_transfer_flush_region
,
888 .get_internal_format
= panfrost_resource_get_internal_format
,
889 .set_stencil
= panfrost_resource_set_stencil
,
890 .get_stencil
= panfrost_resource_get_stencil
,
894 panfrost_resource_screen_init(struct panfrost_screen
*pscreen
)
896 //pscreen->base.resource_create_with_modifiers =
897 // panfrost_resource_create_with_modifiers;
898 pscreen
->base
.resource_create
= u_transfer_helper_resource_create
;
899 pscreen
->base
.resource_destroy
= u_transfer_helper_resource_destroy
;
900 pscreen
->base
.resource_from_handle
= panfrost_resource_from_handle
;
901 pscreen
->base
.resource_get_handle
= panfrost_resource_get_handle
;
902 pscreen
->base
.transfer_helper
= u_transfer_helper_create(&transfer_vtbl
,
908 panfrost_resource_context_init(struct pipe_context
*pctx
)
910 pctx
->transfer_map
= u_transfer_helper_transfer_map
;
911 pctx
->transfer_unmap
= u_transfer_helper_transfer_unmap
;
912 pctx
->create_surface
= panfrost_create_surface
;
913 pctx
->surface_destroy
= panfrost_surface_destroy
;
914 pctx
->resource_copy_region
= util_resource_copy_region
;
915 pctx
->blit
= panfrost_blit
;
916 pctx
->generate_mipmap
= panfrost_generate_mipmap
;
917 pctx
->flush_resource
= panfrost_flush_resource
;
918 pctx
->invalidate_resource
= panfrost_invalidate_resource
;
919 pctx
->transfer_flush_region
= u_transfer_helper_transfer_flush_region
;
920 pctx
->buffer_subdata
= u_default_buffer_subdata
;
921 pctx
->texture_subdata
= u_default_texture_subdata
;