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 "frontend/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 "pandecode/decode.h"
51 #include "panfrost-quirks.h"
53 /* Wrapper around panfrost_bo_create that handles pandecode */
56 pan_bo_create(struct panfrost_device
*dev
, size_t size
, uint32_t flags
)
58 struct panfrost_bo
*bo
= panfrost_bo_create(dev
, size
, flags
);
60 if (pan_debug
& (PAN_DBG_TRACE
| PAN_DBG_SYNC
)) {
61 if (flags
& PAN_BO_INVISIBLE
)
62 pandecode_inject_mmap(bo
->gpu
, NULL
, bo
->size
, NULL
);
63 else if (!(flags
& PAN_BO_DELAY_MMAP
))
64 pandecode_inject_mmap(bo
->gpu
, bo
->cpu
, bo
->size
, NULL
);
71 panfrost_resource_reset_damage(struct panfrost_resource
*pres
)
73 /* We set the damage extent to the full resource size but keep the
74 * damage box empty so that the FB content is reloaded by default.
76 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
77 pres
->damage
.extent
.maxx
= pres
->base
.width0
;
78 pres
->damage
.extent
.maxy
= pres
->base
.height0
;
81 static struct pipe_resource
*
82 panfrost_resource_from_handle(struct pipe_screen
*pscreen
,
83 const struct pipe_resource
*templat
,
84 struct winsys_handle
*whandle
,
87 struct panfrost_device
*dev
= pan_device(pscreen
);
88 struct panfrost_resource
*rsc
;
89 struct pipe_resource
*prsc
;
91 assert(whandle
->type
== WINSYS_HANDLE_TYPE_FD
);
93 rsc
= rzalloc(pscreen
, struct panfrost_resource
);
101 pipe_reference_init(&prsc
->reference
, 1);
102 prsc
->screen
= pscreen
;
104 rsc
->bo
= panfrost_bo_import(dev
, whandle
->handle
);
105 rsc
->internal_format
= templat
->format
;
106 rsc
->layout
= MALI_TEXTURE_LINEAR
;
107 rsc
->slices
[0].stride
= whandle
->stride
;
108 rsc
->slices
[0].offset
= whandle
->offset
;
109 rsc
->slices
[0].initialized
= true;
110 panfrost_resource_reset_damage(rsc
);
112 if (dev
->quirks
& IS_BIFROST
&&
113 templat
->bind
& PIPE_BIND_RENDER_TARGET
) {
114 unsigned size
= panfrost_compute_checksum_size(
115 &rsc
->slices
[0], templat
->width0
, templat
->height0
);
116 rsc
->slices
[0].checksum_bo
= pan_bo_create(dev
, size
, 0);
117 rsc
->checksummed
= true;
122 renderonly_create_gpu_import_for_resource(prsc
, dev
->ro
, NULL
);
123 /* failure is expected in some cases.. */
130 panfrost_resource_get_handle(struct pipe_screen
*pscreen
,
131 struct pipe_context
*ctx
,
132 struct pipe_resource
*pt
,
133 struct winsys_handle
*handle
,
136 struct panfrost_device
*dev
= pan_device(pscreen
);
137 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
138 struct renderonly_scanout
*scanout
= rsrc
->scanout
;
140 handle
->modifier
= DRM_FORMAT_MOD_INVALID
;
142 if (handle
->type
== WINSYS_HANDLE_TYPE_SHARED
) {
144 } else if (handle
->type
== WINSYS_HANDLE_TYPE_KMS
) {
145 if (renderonly_get_handle(scanout
, handle
))
148 handle
->handle
= rsrc
->bo
->gem_handle
;
149 handle
->stride
= rsrc
->slices
[0].stride
;
150 handle
->offset
= rsrc
->slices
[0].offset
;
152 } else if (handle
->type
== WINSYS_HANDLE_TYPE_FD
) {
154 struct drm_prime_handle args
= {
155 .handle
= scanout
->handle
,
156 .flags
= DRM_CLOEXEC
,
159 int ret
= drmIoctl(dev
->ro
->kms_fd
, DRM_IOCTL_PRIME_HANDLE_TO_FD
, &args
);
163 handle
->stride
= scanout
->stride
;
164 handle
->handle
= args
.fd
;
168 int fd
= panfrost_bo_export(rsrc
->bo
);
174 handle
->stride
= rsrc
->slices
[0].stride
;
175 handle
->offset
= rsrc
->slices
[0].offset
;
184 panfrost_flush_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
186 //DBG("TODO %s\n", __func__);
189 static struct pipe_surface
*
190 panfrost_create_surface(struct pipe_context
*pipe
,
191 struct pipe_resource
*pt
,
192 const struct pipe_surface
*surf_tmpl
)
194 struct pipe_surface
*ps
= NULL
;
196 ps
= rzalloc(pipe
, struct pipe_surface
);
199 pipe_reference_init(&ps
->reference
, 1);
200 pipe_resource_reference(&ps
->texture
, pt
);
202 ps
->format
= surf_tmpl
->format
;
204 if (pt
->target
!= PIPE_BUFFER
) {
205 assert(surf_tmpl
->u
.tex
.level
<= pt
->last_level
);
206 ps
->width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
207 ps
->height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
208 ps
->u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
209 ps
->u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
210 ps
->u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
212 /* setting width as number of elements should get us correct renderbuffer width */
213 ps
->width
= surf_tmpl
->u
.buf
.last_element
- surf_tmpl
->u
.buf
.first_element
+ 1;
214 ps
->height
= pt
->height0
;
215 ps
->u
.buf
.first_element
= surf_tmpl
->u
.buf
.first_element
;
216 ps
->u
.buf
.last_element
= surf_tmpl
->u
.buf
.last_element
;
217 assert(ps
->u
.buf
.first_element
<= ps
->u
.buf
.last_element
);
218 assert(ps
->u
.buf
.last_element
< ps
->width
);
226 panfrost_surface_destroy(struct pipe_context
*pipe
,
227 struct pipe_surface
*surf
)
229 assert(surf
->texture
);
230 pipe_resource_reference(&surf
->texture
, NULL
);
234 static struct pipe_resource
*
235 panfrost_create_scanout_res(struct pipe_screen
*screen
,
236 const struct pipe_resource
*template)
238 struct panfrost_device
*dev
= pan_device(screen
);
239 struct pipe_resource scanout_templat
= *template;
240 struct renderonly_scanout
*scanout
;
241 struct winsys_handle handle
;
242 struct pipe_resource
*res
;
244 scanout
= renderonly_scanout_for_resource(&scanout_templat
,
249 assert(handle
.type
== WINSYS_HANDLE_TYPE_FD
);
250 /* TODO: handle modifiers? */
251 res
= screen
->resource_from_handle(screen
, template, &handle
,
252 PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE
);
253 close(handle
.handle
);
257 struct panfrost_resource
*pres
= pan_resource(res
);
259 pres
->scanout
= scanout
;
264 /* Setup the mip tree given a particular layout, possibly with checksumming */
267 panfrost_setup_slices(struct panfrost_resource
*pres
, size_t *bo_size
)
269 struct pipe_resource
*res
= &pres
->base
;
270 unsigned width
= res
->width0
;
271 unsigned height
= res
->height0
;
272 unsigned depth
= res
->depth0
;
273 unsigned bytes_per_pixel
= util_format_get_blocksize(pres
->internal_format
);
277 /* Tiled operates blockwise; linear is packed. Also, anything
278 * we render to has to be tile-aligned. Maybe not strictly
279 * necessary, but we're not *that* pressed for memory and it
280 * makes code a lot simpler */
282 bool renderable
= res
->bind
&
283 (PIPE_BIND_RENDER_TARGET
| PIPE_BIND_DEPTH_STENCIL
);
284 bool afbc
= pres
->layout
== MALI_TEXTURE_AFBC
;
285 bool tiled
= pres
->layout
== MALI_TEXTURE_TILED
;
286 bool should_align
= renderable
|| tiled
;
288 /* We don't know how to specify a 2D stride for 3D textures */
290 bool can_align_stride
=
291 res
->target
!= PIPE_TEXTURE_3D
;
293 should_align
&= can_align_stride
;
296 unsigned size_2d
= 0;
298 for (unsigned l
= 0; l
<= res
->last_level
; ++l
) {
299 struct panfrost_slice
*slice
= &pres
->slices
[l
];
301 unsigned effective_width
= width
;
302 unsigned effective_height
= height
;
303 unsigned effective_depth
= depth
;
306 effective_width
= ALIGN_POT(effective_width
, 16);
307 effective_height
= ALIGN_POT(effective_height
, 16);
309 /* We don't need to align depth */
312 /* Align levels to cache-line as a performance improvement for
313 * linear/tiled and as a requirement for AFBC */
315 offset
= ALIGN_POT(offset
, 64);
317 slice
->offset
= offset
;
319 /* Compute the would-be stride */
320 unsigned stride
= bytes_per_pixel
* effective_width
;
322 if (util_format_is_compressed(pres
->internal_format
))
325 /* ..but cache-line align it for performance */
326 if (can_align_stride
&& pres
->layout
== MALI_TEXTURE_LINEAR
)
327 stride
= ALIGN_POT(stride
, 64);
329 slice
->stride
= stride
;
331 unsigned slice_one_size
= slice
->stride
* effective_height
;
332 unsigned slice_full_size
= slice_one_size
* effective_depth
;
334 slice
->size0
= slice_one_size
;
336 /* Report 2D size for 3D texturing */
339 size_2d
= slice_one_size
;
341 /* Compute AFBC sizes if necessary */
344 panfrost_afbc_header_size(width
, height
);
346 offset
+= slice
->header_size
;
349 offset
+= slice_full_size
;
351 /* Add a checksum region if necessary */
352 if (pres
->checksummed
) {
353 slice
->checksum_offset
= offset
;
355 unsigned size
= panfrost_compute_checksum_size(
356 slice
, width
, height
);
361 width
= u_minify(width
, 1);
362 height
= u_minify(height
, 1);
363 depth
= u_minify(depth
, 1);
366 assert(res
->array_size
);
368 if (res
->target
!= PIPE_TEXTURE_3D
) {
369 /* Arrays and cubemaps have the entire miptree duplicated */
371 pres
->cubemap_stride
= ALIGN_POT(offset
, 64);
372 *bo_size
= ALIGN_POT(pres
->cubemap_stride
* res
->array_size
, 4096);
374 /* 3D strides across the 2D layers */
375 assert(res
->array_size
== 1);
377 pres
->cubemap_stride
= size_2d
;
378 *bo_size
= ALIGN_POT(offset
, 4096);
383 panfrost_resource_create_bo(struct panfrost_device
*dev
, struct panfrost_resource
*pres
)
385 struct pipe_resource
*res
= &pres
->base
;
387 /* Based on the usage, figure out what storing will be used. There are
390 * Linear: the basic format, bad for memory bandwidth, bad for cache
391 * use. Zero-copy, though. Renderable.
393 * Tiled: Not compressed, but cache-optimized. Expensive to write into
394 * (due to software tiling), but cheap to sample from. Ideal for most
397 * AFBC: Compressed and renderable (so always desirable for non-scanout
398 * rendertargets). Cheap to sample from. The format is black box, so we
399 * can't read/write from software.
401 * Tiling textures is almost always faster, unless we only use it once.
402 * Only a few types of resources can be tiled, ensure the bind is only
403 * (a combination of) one of the following */
405 const unsigned valid_binding
=
406 PIPE_BIND_DEPTH_STENCIL
|
407 PIPE_BIND_RENDER_TARGET
|
408 PIPE_BIND_BLENDABLE
|
409 PIPE_BIND_SAMPLER_VIEW
|
410 PIPE_BIND_DISPLAY_TARGET
;
412 unsigned bpp
= util_format_get_blocksizebits(pres
->internal_format
);
413 bool is_2d
= (res
->target
== PIPE_TEXTURE_2D
) || (res
->target
== PIPE_TEXTURE_RECT
);
414 bool is_sane_bpp
= bpp
== 8 || bpp
== 16 || bpp
== 24 || bpp
== 32 || bpp
== 64 || bpp
== 128;
415 bool should_tile
= (res
->usage
!= PIPE_USAGE_STREAM
);
416 bool must_tile
= (res
->bind
& PIPE_BIND_DEPTH_STENCIL
) &&
417 (dev
->quirks
& (MIDGARD_SFBD
| IS_BIFROST
));
418 bool can_tile
= is_2d
&& is_sane_bpp
&& ((res
->bind
& ~valid_binding
) == 0);
420 /* FBOs we would like to checksum, if at all possible */
421 bool can_checksum
= !(res
->bind
& ~valid_binding
);
422 bool should_checksum
= res
->bind
& PIPE_BIND_RENDER_TARGET
;
424 pres
->checksummed
= can_checksum
&& should_checksum
;
426 /* Set the layout appropriately */
427 assert(!(must_tile
&& !can_tile
)); /* must_tile => can_tile */
428 pres
->layout
= ((can_tile
&& should_tile
) || must_tile
) ? MALI_TEXTURE_TILED
: MALI_TEXTURE_LINEAR
;
432 panfrost_setup_slices(pres
, &bo_size
);
434 /* We create a BO immediately but don't bother mapping, since we don't
435 * care to map e.g. FBOs which the CPU probably won't touch */
436 pres
->bo
= pan_bo_create(dev
, bo_size
, PAN_BO_DELAY_MMAP
);
440 panfrost_resource_set_damage_region(struct pipe_screen
*screen
,
441 struct pipe_resource
*res
,
443 const struct pipe_box
*rects
)
445 struct panfrost_resource
*pres
= pan_resource(res
);
446 struct pipe_box
*damage_rect
= &pres
->damage
.biggest_rect
;
447 struct pipe_scissor_state
*damage_extent
= &pres
->damage
.extent
;
451 panfrost_resource_reset_damage(pres
);
455 /* We keep track of 2 different things here:
456 * 1 the damage extent: the quad including all damage regions. Will be
457 * used restrict the rendering area
458 * 2 the biggest damage rectangle: when there are more than one damage
459 * rect we keep the biggest one and will generate 4 wallpaper quads
460 * out of it (see panfrost_draw_wallpaper() for more details). We
461 * might want to do something smarter at some point.
463 * _________________________________
465 * | _________________________ |
466 * | | rect1| _________| |
467 * | |______|_____ | rect 3: | |
468 * | | | rect2 | | biggest | |
469 * | | |_______| | rect | |
470 * | |_______________|_________| |
472 * |_______________________________|
475 memset(&pres
->damage
, 0, sizeof(pres
->damage
));
476 damage_extent
->minx
= 0xffff;
477 damage_extent
->miny
= 0xffff;
478 for (i
= 0; i
< nrects
; i
++) {
479 int x
= rects
[i
].x
, w
= rects
[i
].width
, h
= rects
[i
].height
;
480 int y
= res
->height0
- (rects
[i
].y
+ h
);
482 /* Clamp x,y,w,h to prevent negative values. */
494 if (damage_rect
->width
* damage_rect
->height
< w
* h
)
495 u_box_2d(x
, y
, w
, h
, damage_rect
);
497 damage_extent
->minx
= MIN2(damage_extent
->minx
, x
);
498 damage_extent
->miny
= MIN2(damage_extent
->miny
, y
);
499 damage_extent
->maxx
= MAX2(damage_extent
->maxx
,
500 MIN2(x
+ w
, res
->width0
));
501 damage_extent
->maxy
= MAX2(damage_extent
->maxy
,
502 MIN2(y
+ h
, res
->height0
));
506 static struct pipe_resource
*
507 panfrost_resource_create(struct pipe_screen
*screen
,
508 const struct pipe_resource
*template)
510 /* Make sure we're familiar */
511 switch (template->target
) {
513 case PIPE_TEXTURE_1D
:
514 case PIPE_TEXTURE_2D
:
515 case PIPE_TEXTURE_3D
:
516 case PIPE_TEXTURE_CUBE
:
517 case PIPE_TEXTURE_RECT
:
518 case PIPE_TEXTURE_2D_ARRAY
:
521 DBG("Unknown texture target %d\n", template->target
);
526 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
))
527 return panfrost_create_scanout_res(screen
, template);
529 struct panfrost_resource
*so
= rzalloc(screen
, struct panfrost_resource
);
530 struct panfrost_device
*dev
= pan_device(screen
);
532 so
->base
= *template;
533 so
->base
.screen
= screen
;
534 so
->internal_format
= template->format
;
536 pipe_reference_init(&so
->base
.reference
, 1);
538 util_range_init(&so
->valid_buffer_range
);
540 panfrost_resource_create_bo(dev
, so
);
541 panfrost_resource_reset_damage(so
);
543 if (template->bind
& PIPE_BIND_INDEX_BUFFER
)
544 so
->index_cache
= rzalloc(so
, struct panfrost_minmax_cache
);
546 return (struct pipe_resource
*)so
;
550 panfrost_resource_destroy(struct pipe_screen
*screen
,
551 struct pipe_resource
*pt
)
553 struct panfrost_device
*dev
= pan_device(screen
);
554 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) pt
;
557 renderonly_scanout_destroy(rsrc
->scanout
, dev
->ro
);
560 panfrost_bo_unreference(rsrc
->bo
);
562 if (rsrc
->slices
[0].checksum_bo
)
563 panfrost_bo_unreference(rsrc
->slices
[0].checksum_bo
);
565 util_range_destroy(&rsrc
->valid_buffer_range
);
571 panfrost_transfer_map(struct pipe_context
*pctx
,
572 struct pipe_resource
*resource
,
574 unsigned usage
, /* a combination of PIPE_TRANSFER_x */
575 const struct pipe_box
*box
,
576 struct pipe_transfer
**out_transfer
)
578 struct panfrost_context
*ctx
= pan_context(pctx
);
579 struct panfrost_resource
*rsrc
= pan_resource(resource
);
580 int bytes_per_pixel
= util_format_get_blocksize(rsrc
->internal_format
);
581 struct panfrost_bo
*bo
= rsrc
->bo
;
583 struct panfrost_gtransfer
*transfer
= rzalloc(pctx
, struct panfrost_gtransfer
);
584 transfer
->base
.level
= level
;
585 transfer
->base
.usage
= usage
;
586 transfer
->base
.box
= *box
;
588 pipe_resource_reference(&transfer
->base
.resource
, resource
);
590 *out_transfer
= &transfer
->base
;
592 /* If we haven't already mmaped, now's the time */
593 panfrost_bo_mmap(bo
);
595 if (pan_debug
& (PAN_DBG_TRACE
| PAN_DBG_SYNC
))
596 pandecode_inject_mmap(bo
->gpu
, bo
->cpu
, bo
->size
, NULL
);
598 if (usage
& PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE
) {
599 /* If the BO is used by one of the pending batches or if it's
600 * not ready yet (still accessed by one of the already flushed
601 * batches), we try to allocate a new one to avoid waiting.
603 if (panfrost_pending_batches_access_bo(ctx
, bo
) ||
604 !panfrost_bo_wait(bo
, 0, PAN_BO_ACCESS_RW
)) {
605 struct panfrost_device
*dev
= pan_device(pctx
->screen
);
606 /* We want the BO to be MMAPed. */
607 uint32_t flags
= bo
->flags
& ~PAN_BO_DELAY_MMAP
;
608 struct panfrost_bo
*newbo
= NULL
;
610 /* When the BO has been imported/exported, we can't
611 * replace it by another one, otherwise the
612 * importer/exporter wouldn't see the change we're
615 if (!(bo
->flags
& (PAN_BO_IMPORTED
| PAN_BO_EXPORTED
)))
616 newbo
= pan_bo_create(dev
, bo
->size
,
620 panfrost_bo_unreference(bo
);
624 uint32_t access
= PAN_BO_ACCESS_RW
;
626 /* Allocation failed or was impossible, let's
627 * fall back on a flush+wait.
629 panfrost_flush_batches_accessing_bo(ctx
, bo
,
631 panfrost_bo_wait(bo
, INT64_MAX
, access
);
634 } else if ((usage
& PIPE_TRANSFER_WRITE
)
635 && resource
->target
== PIPE_BUFFER
636 && !util_ranges_intersect(&rsrc
->valid_buffer_range
, box
->x
, box
->x
+ box
->width
)) {
637 /* No flush for writes to uninitialized */
638 } else if (!(usage
& PIPE_TRANSFER_UNSYNCHRONIZED
)) {
639 if (usage
& PIPE_TRANSFER_WRITE
) {
640 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_RW
);
641 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_RW
);
642 } else if (usage
& PIPE_TRANSFER_READ
) {
643 panfrost_flush_batches_accessing_bo(ctx
, bo
, PAN_BO_ACCESS_WRITE
);
644 panfrost_bo_wait(bo
, INT64_MAX
, PAN_BO_ACCESS_WRITE
);
648 if (rsrc
->layout
!= MALI_TEXTURE_LINEAR
) {
649 /* Non-linear resources need to be indirectly mapped */
651 if (usage
& PIPE_TRANSFER_MAP_DIRECTLY
)
654 transfer
->base
.stride
= box
->width
* bytes_per_pixel
;
655 transfer
->base
.layer_stride
= transfer
->base
.stride
* box
->height
;
656 transfer
->map
= ralloc_size(transfer
, transfer
->base
.layer_stride
* box
->depth
);
657 assert(box
->depth
== 1);
659 if ((usage
& PIPE_TRANSFER_READ
) && rsrc
->slices
[level
].initialized
) {
660 if (rsrc
->layout
== MALI_TEXTURE_AFBC
) {
661 DBG("Unimplemented: reads from AFBC");
662 } else if (rsrc
->layout
== MALI_TEXTURE_TILED
) {
663 panfrost_load_tiled_image(
665 bo
->cpu
+ rsrc
->slices
[level
].offset
,
666 box
->x
, box
->y
, box
->width
, box
->height
,
667 transfer
->base
.stride
,
668 rsrc
->slices
[level
].stride
,
669 rsrc
->internal_format
);
673 return transfer
->map
;
675 /* Direct, persistent writes create holes in time for
676 * caching... I don't know if this is actually possible but we
677 * should still get it right */
679 unsigned dpw
= PIPE_TRANSFER_MAP_DIRECTLY
| PIPE_TRANSFER_WRITE
| PIPE_TRANSFER_PERSISTENT
;
681 if ((usage
& dpw
) == dpw
&& rsrc
->index_cache
)
684 transfer
->base
.stride
= rsrc
->slices
[level
].stride
;
685 transfer
->base
.layer_stride
= panfrost_get_layer_stride(
686 rsrc
->slices
, rsrc
->base
.target
== PIPE_TEXTURE_3D
,
687 rsrc
->cubemap_stride
, level
);
689 /* By mapping direct-write, we're implicitly already
690 * initialized (maybe), so be conservative */
692 if ((usage
& PIPE_TRANSFER_WRITE
) && (usage
& PIPE_TRANSFER_MAP_DIRECTLY
)) {
693 rsrc
->slices
[level
].initialized
= true;
694 panfrost_minmax_cache_invalidate(rsrc
->index_cache
, &transfer
->base
);
698 + rsrc
->slices
[level
].offset
699 + transfer
->base
.box
.z
* transfer
->base
.layer_stride
700 + transfer
->base
.box
.y
* rsrc
->slices
[level
].stride
701 + transfer
->base
.box
.x
* bytes_per_pixel
;
706 panfrost_transfer_unmap(struct pipe_context
*pctx
,
707 struct pipe_transfer
*transfer
)
709 /* Gallium expects writeback here, so we tile */
711 struct panfrost_gtransfer
*trans
= pan_transfer(transfer
);
712 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) transfer
->resource
;
714 /* Mark whatever we wrote as written */
715 if (transfer
->usage
& PIPE_TRANSFER_WRITE
)
716 prsrc
->slices
[transfer
->level
].initialized
= true;
719 struct panfrost_bo
*bo
= prsrc
->bo
;
721 if (transfer
->usage
& PIPE_TRANSFER_WRITE
) {
722 if (prsrc
->layout
== MALI_TEXTURE_AFBC
) {
723 DBG("Unimplemented: writes to AFBC\n");
724 } else if (prsrc
->layout
== MALI_TEXTURE_TILED
) {
725 assert(transfer
->box
.depth
== 1);
727 panfrost_store_tiled_image(
728 bo
->cpu
+ prsrc
->slices
[transfer
->level
].offset
,
730 transfer
->box
.x
, transfer
->box
.y
,
731 transfer
->box
.width
, transfer
->box
.height
,
732 prsrc
->slices
[transfer
->level
].stride
,
734 prsrc
->internal_format
);
740 util_range_add(&prsrc
->base
, &prsrc
->valid_buffer_range
,
742 transfer
->box
.x
+ transfer
->box
.width
);
744 panfrost_minmax_cache_invalidate(prsrc
->index_cache
, transfer
);
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
)
779 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) rsrc
;
780 return prsrc
->internal_format
;
784 panfrost_generate_mipmap(
785 struct pipe_context
*pctx
,
786 struct pipe_resource
*prsrc
,
787 enum pipe_format format
,
790 unsigned first_layer
,
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. */
805 bool blit_res
= util_gen_mipmap(
807 base_level
, last_level
,
808 first_layer
, last_layer
,
809 PIPE_TEX_FILTER_LINEAR
);
814 /* Computes the address to a texture at a particular slice */
817 panfrost_get_texture_address(
818 struct panfrost_resource
*rsrc
,
819 unsigned level
, unsigned face
)
821 bool is_3d
= rsrc
->base
.target
== PIPE_TEXTURE_3D
;
822 return rsrc
->bo
->gpu
+ panfrost_texture_offset(rsrc
->slices
, is_3d
, rsrc
->cubemap_stride
, level
, face
);
825 /* Given a resource that has already been allocated, hint that it should use a
826 * given layout. These are suggestions, not commands; it is perfectly legal to
827 * stub out this function, but there will be performance implications. */
830 panfrost_resource_hint_layout(
831 struct panfrost_device
*dev
,
832 struct panfrost_resource
*rsrc
,
833 enum mali_texture_layout layout
,
836 /* Nothing to do, although a sophisticated implementation might store
839 if (rsrc
->layout
== layout
)
842 /* We don't use the weight yet, but we should check that it's positive
843 * (semantically meaning that we should choose the given `layout`) */
848 /* Check if the preferred layout is legal for this buffer */
850 if (layout
== MALI_TEXTURE_AFBC
) {
851 bool can_afbc
= panfrost_format_supports_afbc(rsrc
->internal_format
);
852 bool is_scanout
= rsrc
->base
.bind
&
853 (PIPE_BIND_DISPLAY_TARGET
| PIPE_BIND_SCANOUT
| PIPE_BIND_SHARED
);
855 if (!can_afbc
|| is_scanout
)
859 /* Simple heuristic so far: if the resource is uninitialized, switch to
860 * the hinted layout. If it is initialized, keep the original layout.
861 * This misses some cases where it would be beneficial to switch and
864 bool is_initialized
= false;
866 for (unsigned i
= 0; i
< MAX_MIP_LEVELS
; ++i
)
867 is_initialized
|= rsrc
->slices
[i
].initialized
;
872 /* We're uninitialized, so do a layout switch. Reinitialize slices. */
875 rsrc
->layout
= layout
;
876 panfrost_setup_slices(rsrc
, &new_size
);
878 /* If we grew in size, reallocate the BO */
879 if (new_size
> rsrc
->bo
->size
) {
880 panfrost_bo_unreference(rsrc
->bo
);
881 rsrc
->bo
= pan_bo_create(dev
, new_size
, PAN_BO_DELAY_MMAP
);
884 /* TODO: If there are textures bound, regenerate their descriptors */
888 panfrost_resource_set_stencil(struct pipe_resource
*prsrc
,
889 struct pipe_resource
*stencil
)
891 pan_resource(prsrc
)->separate_stencil
= pan_resource(stencil
);
894 static struct pipe_resource
*
895 panfrost_resource_get_stencil(struct pipe_resource
*prsrc
)
897 return &pan_resource(prsrc
)->separate_stencil
->base
;
900 static const struct u_transfer_vtbl transfer_vtbl
= {
901 .resource_create
= panfrost_resource_create
,
902 .resource_destroy
= panfrost_resource_destroy
,
903 .transfer_map
= panfrost_transfer_map
,
904 .transfer_unmap
= panfrost_transfer_unmap
,
905 .transfer_flush_region
= panfrost_transfer_flush_region
,
906 .get_internal_format
= panfrost_resource_get_internal_format
,
907 .set_stencil
= panfrost_resource_set_stencil
,
908 .get_stencil
= panfrost_resource_get_stencil
,
912 panfrost_resource_screen_init(struct pipe_screen
*pscreen
)
914 //pscreen->base.resource_create_with_modifiers =
915 // panfrost_resource_create_with_modifiers;
916 pscreen
->resource_create
= u_transfer_helper_resource_create
;
917 pscreen
->resource_destroy
= u_transfer_helper_resource_destroy
;
918 pscreen
->resource_from_handle
= panfrost_resource_from_handle
;
919 pscreen
->resource_get_handle
= panfrost_resource_get_handle
;
920 pscreen
->transfer_helper
= u_transfer_helper_create(&transfer_vtbl
,
926 panfrost_resource_context_init(struct pipe_context
*pctx
)
928 pctx
->transfer_map
= u_transfer_helper_transfer_map
;
929 pctx
->transfer_unmap
= u_transfer_helper_transfer_unmap
;
930 pctx
->create_surface
= panfrost_create_surface
;
931 pctx
->surface_destroy
= panfrost_surface_destroy
;
932 pctx
->resource_copy_region
= util_resource_copy_region
;
933 pctx
->blit
= panfrost_blit
;
934 pctx
->generate_mipmap
= panfrost_generate_mipmap
;
935 pctx
->flush_resource
= panfrost_flush_resource
;
936 pctx
->invalidate_resource
= panfrost_invalidate_resource
;
937 pctx
->transfer_flush_region
= u_transfer_helper_transfer_flush_region
;
938 pctx
->buffer_subdata
= u_default_buffer_subdata
;
939 pctx
->texture_subdata
= u_default_texture_subdata
;