2 * Copyright © 2017 Intel Corporation
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included
12 * in all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
20 * DEALINGS IN THE SOFTWARE.
24 #include "pipe/p_defines.h"
25 #include "pipe/p_state.h"
26 #include "pipe/p_context.h"
27 #include "pipe/p_screen.h"
28 #include "util/format/u_format.h"
29 #include "util/u_inlines.h"
30 #include "util/ralloc.h"
31 #include "intel/blorp/blorp.h"
32 #include "iris_context.h"
33 #include "iris_resource.h"
34 #include "iris_screen.h"
37 * Helper function for handling mirror image blits.
39 * If coord0 > coord1, swap them and return "true" (mirrored).
42 apply_mirror(float *coord0
, float *coord1
)
44 if (*coord0
> *coord1
) {
54 * Compute the number of pixels to clip for each side of a rect
56 * \param x0 The rect's left coordinate
57 * \param y0 The rect's bottom coordinate
58 * \param x1 The rect's right coordinate
59 * \param y1 The rect's top coordinate
60 * \param min_x The clipping region's left coordinate
61 * \param min_y The clipping region's bottom coordinate
62 * \param max_x The clipping region's right coordinate
63 * \param max_y The clipping region's top coordinate
64 * \param clipped_x0 The number of pixels to clip from the left side
65 * \param clipped_y0 The number of pixels to clip from the bottom side
66 * \param clipped_x1 The number of pixels to clip from the right side
67 * \param clipped_y1 The number of pixels to clip from the top side
69 * \return false if we clip everything away, true otherwise
72 compute_pixels_clipped(float x0
, float y0
, float x1
, float y1
,
73 float min_x
, float min_y
, float max_x
, float max_y
,
74 float *clipped_x0
, float *clipped_y0
,
75 float *clipped_x1
, float *clipped_y1
)
77 /* If we are going to clip everything away, stop. */
78 if (!(min_x
<= max_x
&&
90 *clipped_x0
= min_x
- x0
;
94 *clipped_x1
= x1
- max_x
;
99 *clipped_y0
= min_y
- y0
;
103 *clipped_y1
= y1
- max_y
;
111 * Clips a coordinate (left, right, top or bottom) for the src or dst rect
112 * (whichever requires the largest clip) and adjusts the coordinate
113 * for the other rect accordingly.
115 * \param mirror true if mirroring is required
116 * \param src the source rect coordinate (for example src_x0)
117 * \param dst0 the dst rect coordinate (for example dst_x0)
118 * \param dst1 the opposite dst rect coordinate (for example dst_x1)
119 * \param clipped_dst0 number of pixels to clip from the dst coordinate
120 * \param clipped_dst1 number of pixels to clip from the opposite dst coordinate
121 * \param scale the src vs dst scale involved for that coordinate
122 * \param is_left_or_bottom true if we are clipping the left or bottom sides
126 clip_coordinates(bool mirror
,
127 float *src
, float *dst0
, float *dst1
,
131 bool is_left_or_bottom
)
133 /* When clipping we need to add or subtract pixels from the original
134 * coordinates depending on whether we are acting on the left/bottom
135 * or right/top sides of the rect respectively. We assume we have to
136 * add them in the code below, and multiply by -1 when we should
139 int mult
= is_left_or_bottom
? 1 : -1;
142 *dst0
+= clipped_dst0
* mult
;
143 *src
+= clipped_dst0
* scale
* mult
;
145 *dst1
-= clipped_dst1
* mult
;
146 *src
+= clipped_dst1
* scale
* mult
;
151 * Apply a scissor rectangle to blit coordinates.
153 * Returns true if the blit was entirely scissored away.
156 apply_blit_scissor(const struct pipe_scissor_state
*scissor
,
157 float *src_x0
, float *src_y0
,
158 float *src_x1
, float *src_y1
,
159 float *dst_x0
, float *dst_y0
,
160 float *dst_x1
, float *dst_y1
,
161 bool mirror_x
, bool mirror_y
)
163 float clip_dst_x0
, clip_dst_x1
, clip_dst_y0
, clip_dst_y1
;
165 /* Compute number of pixels to scissor away. */
166 if (!compute_pixels_clipped(*dst_x0
, *dst_y0
, *dst_x1
, *dst_y1
,
167 scissor
->minx
, scissor
->miny
,
168 scissor
->maxx
, scissor
->maxy
,
169 &clip_dst_x0
, &clip_dst_y0
,
170 &clip_dst_x1
, &clip_dst_y1
))
173 // XXX: comments assume source clipping, which we don't do
175 /* When clipping any of the two rects we need to adjust the coordinates
176 * in the other rect considering the scaling factor involved. To obtain
177 * the best precision we want to make sure that we only clip once per
178 * side to avoid accumulating errors due to the scaling adjustment.
180 * For example, if src_x0 and dst_x0 need both to be clipped we want to
181 * avoid the situation where we clip src_x0 first, then adjust dst_x0
182 * accordingly but then we realize that the resulting dst_x0 still needs
183 * to be clipped, so we clip dst_x0 and adjust src_x0 again. Because we are
184 * applying scaling factors to adjust the coordinates in each clipping
185 * pass we lose some precision and that can affect the results of the
186 * blorp blit operation slightly. What we want to do here is detect the
187 * rect that we should clip first for each side so that when we adjust
188 * the other rect we ensure the resulting coordinate does not need to be
191 * The code below implements this by comparing the number of pixels that
192 * we need to clip for each side of both rects considering the scales
193 * involved. For example, clip_src_x0 represents the number of pixels
194 * to be clipped for the src rect's left side, so if clip_src_x0 = 5,
195 * clip_dst_x0 = 4 and scale_x = 2 it means that we are clipping more
196 * from the dst rect so we should clip dst_x0 only and adjust src_x0.
197 * This is because clipping 4 pixels in the dst is equivalent to
198 * clipping 4 * 2 = 8 > 5 in the src.
201 if (*src_x0
== *src_x1
|| *src_y0
== *src_y1
202 || *dst_x0
== *dst_x1
|| *dst_y0
== *dst_y1
)
205 float scale_x
= (float) (*src_x1
- *src_x0
) / (*dst_x1
- *dst_x0
);
206 float scale_y
= (float) (*src_y1
- *src_y0
) / (*dst_y1
- *dst_y0
);
209 clip_coordinates(mirror_x
, src_x0
, dst_x0
, dst_x1
,
210 clip_dst_x0
, clip_dst_x1
, scale_x
, true);
212 /* Clip right side */
213 clip_coordinates(mirror_x
, src_x1
, dst_x1
, dst_x0
,
214 clip_dst_x1
, clip_dst_x0
, scale_x
, false);
216 /* Clip bottom side */
217 clip_coordinates(mirror_y
, src_y0
, dst_y0
, dst_y1
,
218 clip_dst_y0
, clip_dst_y1
, scale_y
, true);
221 clip_coordinates(mirror_y
, src_y1
, dst_y1
, dst_y0
,
222 clip_dst_y1
, clip_dst_y0
, scale_y
, false);
224 /* Check for invalid bounds
225 * Can't blit for 0-dimensions
227 return *src_x0
== *src_x1
|| *src_y0
== *src_y1
228 || *dst_x0
== *dst_x1
|| *dst_y0
== *dst_y1
;
232 iris_blorp_surf_for_resource(struct iris_vtable
*vtbl
,
233 struct isl_device
*isl_dev
,
234 struct blorp_surf
*surf
,
235 struct pipe_resource
*p_res
,
236 enum isl_aux_usage aux_usage
,
238 bool is_render_target
)
240 struct iris_resource
*res
= (void *) p_res
;
242 assert(!iris_resource_unfinished_aux_import(res
));
244 if (isl_aux_usage_has_hiz(aux_usage
) &&
245 !iris_resource_level_has_hiz(res
, level
))
246 aux_usage
= ISL_AUX_USAGE_NONE
;
248 *surf
= (struct blorp_surf
) {
250 .addr
= (struct blorp_address
) {
252 .offset
= res
->offset
,
253 .reloc_flags
= is_render_target
? EXEC_OBJECT_WRITE
: 0,
254 .mocs
= iris_mocs(res
->bo
, isl_dev
),
256 .aux_usage
= aux_usage
,
259 if (aux_usage
!= ISL_AUX_USAGE_NONE
) {
260 surf
->aux_surf
= &res
->aux
.surf
;
261 surf
->aux_addr
= (struct blorp_address
) {
262 .buffer
= res
->aux
.bo
,
263 .offset
= res
->aux
.offset
,
264 .reloc_flags
= is_render_target
? EXEC_OBJECT_WRITE
: 0,
265 .mocs
= iris_mocs(res
->bo
, isl_dev
),
268 iris_resource_get_clear_color(res
, NULL
, NULL
);
269 surf
->clear_color_addr
= (struct blorp_address
) {
270 .buffer
= res
->aux
.clear_color_bo
,
271 .offset
= res
->aux
.clear_color_offset
,
273 .mocs
= iris_mocs(res
->aux
.clear_color_bo
, isl_dev
),
279 is_astc(enum isl_format format
)
281 return format
!= ISL_FORMAT_UNSUPPORTED
&&
282 isl_format_get_layout(format
)->txc
== ISL_TXC_ASTC
;
286 tex_cache_flush_hack(struct iris_batch
*batch
,
287 enum isl_format view_format
,
288 enum isl_format surf_format
)
290 const struct gen_device_info
*devinfo
= &batch
->screen
->devinfo
;
292 /* The WaSamplerCacheFlushBetweenRedescribedSurfaceReads workaround says:
294 * "Currently Sampler assumes that a surface would not have two
295 * different format associate with it. It will not properly cache
296 * the different views in the MT cache, causing a data corruption."
298 * We may need to handle this for texture views in general someday, but
299 * for now we handle it here, as it hurts copies and blits particularly
300 * badly because they ofter reinterpret formats.
302 * If the BO hasn't been referenced yet this batch, we assume that the
303 * texture cache doesn't contain any relevant data nor need flushing.
305 * Icelake (Gen11+) claims to fix this issue, but seems to still have
306 * issues with ASTC formats.
308 bool need_flush
= devinfo
->gen
>= 11 ?
309 is_astc(surf_format
) != is_astc(view_format
) :
310 view_format
!= surf_format
;
315 "workaround: WaSamplerCacheFlushBetweenRedescribedSurfaceReads";
317 iris_emit_pipe_control_flush(batch
, reason
, PIPE_CONTROL_CS_STALL
);
318 iris_emit_pipe_control_flush(batch
, reason
,
319 PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE
);
322 static enum isl_aux_usage
323 iris_resource_blorp_write_aux_usage(struct iris_context
*ice
,
324 struct iris_resource
*res
,
325 enum isl_format render_format
)
327 if (res
->surf
.usage
& (ISL_SURF_USAGE_DEPTH_BIT
|
328 ISL_SURF_USAGE_STENCIL_BIT
)) {
329 assert(render_format
== res
->surf
.format
);
330 return res
->aux
.usage
;
332 return iris_resource_render_aux_usage(ice
, res
, render_format
,
338 * The pipe->blit() driver hook.
340 * This performs a blit between two surfaces, which copies data but may
341 * also perform format conversion, scaling, flipping, and so on.
344 iris_blit(struct pipe_context
*ctx
, const struct pipe_blit_info
*info
)
346 struct iris_context
*ice
= (void *) ctx
;
347 struct iris_screen
*screen
= (struct iris_screen
*)ctx
->screen
;
348 const struct gen_device_info
*devinfo
= &screen
->devinfo
;
349 struct iris_batch
*batch
= &ice
->batches
[IRIS_BATCH_RENDER
];
350 enum blorp_batch_flags blorp_flags
= 0;
351 struct iris_resource
*src_res
= (void *) info
->src
.resource
;
352 struct iris_resource
*dst_res
= (void *) info
->dst
.resource
;
354 /* We don't support color masking. */
355 assert((info
->mask
& PIPE_MASK_RGBA
) == PIPE_MASK_RGBA
||
356 (info
->mask
& PIPE_MASK_RGBA
) == 0);
358 if (info
->render_condition_enable
) {
359 if (ice
->state
.predicate
== IRIS_PREDICATE_STATE_DONT_RENDER
)
362 if (ice
->state
.predicate
== IRIS_PREDICATE_STATE_USE_BIT
)
363 blorp_flags
|= BLORP_BATCH_PREDICATE_ENABLE
;
366 struct iris_format_info src_fmt
=
367 iris_format_for_usage(devinfo
, info
->src
.format
,
368 ISL_SURF_USAGE_TEXTURE_BIT
);
369 enum isl_aux_usage src_aux_usage
=
370 iris_resource_texture_aux_usage(ice
, src_res
, src_fmt
.fmt
);
372 if (iris_resource_level_has_hiz(src_res
, info
->src
.level
))
373 assert(src_res
->surf
.format
== src_fmt
.fmt
);
375 bool src_clear_supported
= isl_aux_usage_has_fast_clears(src_aux_usage
) &&
376 src_res
->surf
.format
== src_fmt
.fmt
;
378 iris_resource_prepare_access(ice
, batch
, src_res
, info
->src
.level
, 1,
379 info
->src
.box
.z
, info
->src
.box
.depth
,
380 src_aux_usage
, src_clear_supported
);
382 struct iris_format_info dst_fmt
=
383 iris_format_for_usage(devinfo
, info
->dst
.format
,
384 ISL_SURF_USAGE_RENDER_TARGET_BIT
);
385 enum isl_aux_usage dst_aux_usage
=
386 iris_resource_blorp_write_aux_usage(ice
, dst_res
, dst_fmt
.fmt
);
387 bool dst_clear_supported
= isl_aux_usage_has_fast_clears(dst_aux_usage
);
389 struct blorp_surf src_surf
, dst_surf
;
390 iris_blorp_surf_for_resource(&ice
->vtbl
, &screen
->isl_dev
, &src_surf
,
391 info
->src
.resource
, src_aux_usage
,
392 info
->src
.level
, false);
393 iris_blorp_surf_for_resource(&ice
->vtbl
, &screen
->isl_dev
, &dst_surf
,
394 info
->dst
.resource
, dst_aux_usage
,
395 info
->dst
.level
, true);
397 iris_resource_prepare_access(ice
, batch
, dst_res
, info
->dst
.level
, 1,
398 info
->dst
.box
.z
, info
->dst
.box
.depth
,
399 dst_aux_usage
, dst_clear_supported
);
401 float src_x0
= info
->src
.box
.x
;
402 float src_x1
= info
->src
.box
.x
+ info
->src
.box
.width
;
403 float src_y0
= info
->src
.box
.y
;
404 float src_y1
= info
->src
.box
.y
+ info
->src
.box
.height
;
405 float dst_x0
= info
->dst
.box
.x
;
406 float dst_x1
= info
->dst
.box
.x
+ info
->dst
.box
.width
;
407 float dst_y0
= info
->dst
.box
.y
;
408 float dst_y1
= info
->dst
.box
.y
+ info
->dst
.box
.height
;
409 bool mirror_x
= apply_mirror(&src_x0
, &src_x1
);
410 bool mirror_y
= apply_mirror(&src_y0
, &src_y1
);
411 enum blorp_filter filter
;
413 if (info
->scissor_enable
) {
414 bool noop
= apply_blit_scissor(&info
->scissor
,
415 &src_x0
, &src_y0
, &src_x1
, &src_y1
,
416 &dst_x0
, &dst_y0
, &dst_x1
, &dst_y1
,
422 if (abs(info
->dst
.box
.width
) == abs(info
->src
.box
.width
) &&
423 abs(info
->dst
.box
.height
) == abs(info
->src
.box
.height
)) {
424 if (src_surf
.surf
->samples
> 1 && dst_surf
.surf
->samples
<= 1) {
425 /* The OpenGL ES 3.2 specification, section 16.2.1, says:
427 * "If the read framebuffer is multisampled (its effective
428 * value of SAMPLE_BUFFERS is one) and the draw framebuffer
429 * is not (its value of SAMPLE_BUFFERS is zero), the samples
430 * corresponding to each pixel location in the source are
431 * converted to a single sample before being written to the
432 * destination. The filter parameter is ignored. If the
433 * source formats are integer types or stencil values, a
434 * single sample’s value is selected for each pixel. If the
435 * source formats are floating-point or normalized types,
436 * the sample values for each pixel are resolved in an
437 * implementation-dependent manner. If the source formats
438 * are depth values, sample values are resolved in an
439 * implementation-dependent manner where the result will be
440 * between the minimum and maximum depth values in the pixel."
442 * When selecting a single sample, we always choose sample 0.
444 if (util_format_is_depth_or_stencil(info
->src
.format
) ||
445 util_format_is_pure_integer(info
->src
.format
)) {
446 filter
= BLORP_FILTER_SAMPLE_0
;
448 filter
= BLORP_FILTER_AVERAGE
;
451 /* The OpenGL 4.6 specification, section 18.3.1, says:
453 * "If the source and destination dimensions are identical,
454 * no filtering is applied."
456 * Using BLORP_FILTER_NONE will also handle the upsample case by
457 * replicating the one value in the source to all values in the
460 filter
= BLORP_FILTER_NONE
;
462 } else if (info
->filter
== PIPE_TEX_FILTER_LINEAR
) {
463 filter
= BLORP_FILTER_BILINEAR
;
465 filter
= BLORP_FILTER_NEAREST
;
468 if (iris_batch_references(batch
, src_res
->bo
))
469 tex_cache_flush_hack(batch
, src_fmt
.fmt
, src_res
->surf
.format
);
471 if (dst_res
->base
.target
== PIPE_BUFFER
)
472 util_range_add(&dst_res
->base
, &dst_res
->valid_buffer_range
, dst_x0
, dst_x1
);
474 struct blorp_batch blorp_batch
;
475 blorp_batch_init(&ice
->blorp
, &blorp_batch
, batch
, blorp_flags
);
478 if (util_format_is_depth_or_stencil(info
->dst
.format
))
479 main_mask
= PIPE_MASK_Z
;
481 main_mask
= PIPE_MASK_RGBA
;
483 if (info
->mask
& main_mask
) {
484 for (int slice
= 0; slice
< info
->dst
.box
.depth
; slice
++) {
485 iris_batch_maybe_flush(batch
, 1500);
487 blorp_blit(&blorp_batch
,
488 &src_surf
, info
->src
.level
, info
->src
.box
.z
+ slice
,
489 src_fmt
.fmt
, src_fmt
.swizzle
,
490 &dst_surf
, info
->dst
.level
, info
->dst
.box
.z
+ slice
,
491 dst_fmt
.fmt
, dst_fmt
.swizzle
,
492 src_x0
, src_y0
, src_x1
, src_y1
,
493 dst_x0
, dst_y0
, dst_x1
, dst_y1
,
494 filter
, mirror_x
, mirror_y
);
498 struct iris_resource
*stc_dst
= NULL
;
499 enum isl_aux_usage stc_src_aux_usage
, stc_dst_aux_usage
;
500 if ((info
->mask
& PIPE_MASK_S
) &&
501 util_format_has_stencil(util_format_description(info
->dst
.format
)) &&
502 util_format_has_stencil(util_format_description(info
->src
.format
))) {
503 struct iris_resource
*src_res
, *junk
;
504 struct blorp_surf src_surf
, dst_surf
;
505 iris_get_depth_stencil_resources(info
->src
.resource
, &junk
, &src_res
);
506 iris_get_depth_stencil_resources(info
->dst
.resource
, &junk
, &stc_dst
);
508 struct iris_format_info src_fmt
=
509 iris_format_for_usage(devinfo
, src_res
->base
.format
,
510 ISL_SURF_USAGE_TEXTURE_BIT
);
512 iris_resource_texture_aux_usage(ice
, src_res
, src_fmt
.fmt
);
514 struct iris_format_info dst_fmt
=
515 iris_format_for_usage(devinfo
, stc_dst
->base
.format
,
516 ISL_SURF_USAGE_RENDER_TARGET_BIT
);
518 iris_resource_blorp_write_aux_usage(ice
, stc_dst
, dst_fmt
.fmt
);
520 iris_resource_prepare_access(ice
, batch
, src_res
, info
->src
.level
, 1,
521 info
->src
.box
.z
, info
->src
.box
.depth
,
522 stc_src_aux_usage
, false);
523 iris_resource_prepare_access(ice
, batch
, stc_dst
, info
->dst
.level
, 1,
524 info
->dst
.box
.z
, info
->dst
.box
.depth
,
525 stc_dst_aux_usage
, false);
526 iris_blorp_surf_for_resource(&ice
->vtbl
, &screen
->isl_dev
, &src_surf
,
527 &src_res
->base
, stc_src_aux_usage
,
528 info
->src
.level
, false);
529 iris_blorp_surf_for_resource(&ice
->vtbl
, &screen
->isl_dev
, &dst_surf
,
530 &stc_dst
->base
, stc_dst_aux_usage
,
531 info
->dst
.level
, true);
533 for (int slice
= 0; slice
< info
->dst
.box
.depth
; slice
++) {
534 iris_batch_maybe_flush(batch
, 1500);
536 blorp_blit(&blorp_batch
,
537 &src_surf
, info
->src
.level
, info
->src
.box
.z
+ slice
,
538 ISL_FORMAT_R8_UINT
, ISL_SWIZZLE_IDENTITY
,
539 &dst_surf
, info
->dst
.level
, info
->dst
.box
.z
+ slice
,
540 ISL_FORMAT_R8_UINT
, ISL_SWIZZLE_IDENTITY
,
541 src_x0
, src_y0
, src_x1
, src_y1
,
542 dst_x0
, dst_y0
, dst_x1
, dst_y1
,
543 filter
, mirror_x
, mirror_y
);
547 blorp_batch_finish(&blorp_batch
);
549 tex_cache_flush_hack(batch
, src_fmt
.fmt
, src_res
->surf
.format
);
551 if (info
->mask
& main_mask
) {
552 iris_resource_finish_write(ice
, dst_res
, info
->dst
.level
, info
->dst
.box
.z
,
553 info
->dst
.box
.depth
, dst_aux_usage
);
557 iris_resource_finish_write(ice
, stc_dst
, info
->dst
.level
, info
->dst
.box
.z
,
558 info
->dst
.box
.depth
, stc_dst_aux_usage
);
561 iris_flush_and_dirty_for_history(ice
, batch
, (struct iris_resource
*)
563 PIPE_CONTROL_RENDER_TARGET_FLUSH
,
564 "cache history: post-blit");
568 get_copy_region_aux_settings(struct iris_context
*ice
,
569 struct iris_resource
*res
,
570 enum isl_aux_usage
*out_aux_usage
,
571 bool *out_clear_supported
,
572 bool is_render_target
)
574 struct iris_screen
*screen
= (void *) ice
->ctx
.screen
;
575 const struct gen_device_info
*devinfo
= &screen
->devinfo
;
577 switch (res
->aux
.usage
) {
578 case ISL_AUX_USAGE_HIZ
:
579 case ISL_AUX_USAGE_HIZ_CCS
:
580 case ISL_AUX_USAGE_HIZ_CCS_WT
:
581 if (is_render_target
) {
582 *out_aux_usage
= res
->aux
.usage
;
584 *out_aux_usage
= iris_resource_texture_aux_usage(ice
, res
,
587 *out_clear_supported
= (*out_aux_usage
!= ISL_AUX_USAGE_NONE
);
589 case ISL_AUX_USAGE_MCS
:
590 case ISL_AUX_USAGE_MCS_CCS
:
591 case ISL_AUX_USAGE_CCS_E
:
592 *out_aux_usage
= res
->aux
.usage
;
593 /* Prior to Gen9, fast-clear only supported 0/1 clear colors. Since
594 * we're going to re-interpret the format as an integer format possibly
595 * with a different number of components, we can't handle clear colors
598 *out_clear_supported
= devinfo
->gen
>= 9;
600 case ISL_AUX_USAGE_STC_CCS
:
601 *out_aux_usage
= res
->aux
.usage
;
602 *out_clear_supported
= false;
605 *out_aux_usage
= ISL_AUX_USAGE_NONE
;
606 *out_clear_supported
= false;
612 * Perform a GPU-based raw memory copy between compatible view classes.
614 * Does not perform any flushing - the new data may still be left in the
615 * render cache, and old data may remain in other caches.
617 * Wraps blorp_copy() and blorp_buffer_copy().
620 iris_copy_region(struct blorp_context
*blorp
,
621 struct iris_batch
*batch
,
622 struct pipe_resource
*dst
,
624 unsigned dstx
, unsigned dsty
, unsigned dstz
,
625 struct pipe_resource
*src
,
627 const struct pipe_box
*src_box
)
629 struct blorp_batch blorp_batch
;
630 struct iris_context
*ice
= blorp
->driver_ctx
;
631 struct iris_screen
*screen
= (void *) ice
->ctx
.screen
;
632 struct iris_resource
*src_res
= (void *) src
;
633 struct iris_resource
*dst_res
= (void *) dst
;
635 enum isl_aux_usage src_aux_usage
, dst_aux_usage
;
636 bool src_clear_supported
, dst_clear_supported
;
637 get_copy_region_aux_settings(ice
, src_res
, &src_aux_usage
,
638 &src_clear_supported
, false);
639 get_copy_region_aux_settings(ice
, dst_res
, &dst_aux_usage
,
640 &dst_clear_supported
, true);
642 if (iris_batch_references(batch
, src_res
->bo
))
643 tex_cache_flush_hack(batch
, ISL_FORMAT_UNSUPPORTED
, src_res
->surf
.format
);
645 if (dst
->target
== PIPE_BUFFER
)
646 util_range_add(&dst_res
->base
, &dst_res
->valid_buffer_range
, dstx
, dstx
+ src_box
->width
);
648 if (dst
->target
== PIPE_BUFFER
&& src
->target
== PIPE_BUFFER
) {
649 struct blorp_address src_addr
= {
650 .buffer
= iris_resource_bo(src
), .offset
= src_box
->x
,
652 struct blorp_address dst_addr
= {
653 .buffer
= iris_resource_bo(dst
), .offset
= dstx
,
654 .reloc_flags
= EXEC_OBJECT_WRITE
,
657 iris_batch_maybe_flush(batch
, 1500);
659 blorp_batch_init(&ice
->blorp
, &blorp_batch
, batch
, 0);
660 blorp_buffer_copy(&blorp_batch
, src_addr
, dst_addr
, src_box
->width
);
661 blorp_batch_finish(&blorp_batch
);
663 // XXX: what about one surface being a buffer and not the other?
665 struct blorp_surf src_surf
, dst_surf
;
666 iris_blorp_surf_for_resource(&ice
->vtbl
, &screen
->isl_dev
, &src_surf
,
667 src
, src_aux_usage
, src_level
, false);
668 iris_blorp_surf_for_resource(&ice
->vtbl
, &screen
->isl_dev
, &dst_surf
,
669 dst
, dst_aux_usage
, dst_level
, true);
671 iris_resource_prepare_access(ice
, batch
, src_res
, src_level
, 1,
672 src_box
->z
, src_box
->depth
,
673 src_aux_usage
, src_clear_supported
);
674 iris_resource_prepare_access(ice
, batch
, dst_res
, dst_level
, 1,
675 dstz
, src_box
->depth
,
676 dst_aux_usage
, dst_clear_supported
);
678 blorp_batch_init(&ice
->blorp
, &blorp_batch
, batch
, 0);
680 for (int slice
= 0; slice
< src_box
->depth
; slice
++) {
681 iris_batch_maybe_flush(batch
, 1500);
683 blorp_copy(&blorp_batch
, &src_surf
, src_level
, src_box
->z
+ slice
,
684 &dst_surf
, dst_level
, dstz
+ slice
,
685 src_box
->x
, src_box
->y
, dstx
, dsty
,
686 src_box
->width
, src_box
->height
);
688 blorp_batch_finish(&blorp_batch
);
690 iris_resource_finish_write(ice
, dst_res
, dst_level
, dstz
,
691 src_box
->depth
, dst_aux_usage
);
694 tex_cache_flush_hack(batch
, ISL_FORMAT_UNSUPPORTED
, src_res
->surf
.format
);
697 static struct iris_batch
*
698 get_preferred_batch(struct iris_context
*ice
, struct iris_bo
*bo
)
700 /* If the compute batch is already using this buffer, we'd prefer to
701 * continue queueing in the compute batch.
703 if (iris_batch_references(&ice
->batches
[IRIS_BATCH_COMPUTE
], bo
))
704 return &ice
->batches
[IRIS_BATCH_COMPUTE
];
706 /* Otherwise default to the render batch. */
707 return &ice
->batches
[IRIS_BATCH_RENDER
];
712 * The pipe->resource_copy_region() driver hook.
714 * This implements ARB_copy_image semantics - a raw memory copy between
715 * compatible view classes.
718 iris_resource_copy_region(struct pipe_context
*ctx
,
719 struct pipe_resource
*dst
,
721 unsigned dstx
, unsigned dsty
, unsigned dstz
,
722 struct pipe_resource
*src
,
724 const struct pipe_box
*src_box
)
726 struct iris_context
*ice
= (void *) ctx
;
727 struct iris_batch
*batch
= &ice
->batches
[IRIS_BATCH_RENDER
];
729 /* Use MI_COPY_MEM_MEM for tiny (<= 16 byte, % 4) buffer copies. */
730 if (src
->target
== PIPE_BUFFER
&& dst
->target
== PIPE_BUFFER
&&
731 (src_box
->width
% 4 == 0) && src_box
->width
<= 16) {
732 struct iris_bo
*dst_bo
= iris_resource_bo(dst
);
733 batch
= get_preferred_batch(ice
, dst_bo
);
734 iris_batch_maybe_flush(batch
, 24 + 5 * (src_box
->width
/ 4));
735 iris_emit_pipe_control_flush(batch
,
736 "stall for MI_COPY_MEM_MEM copy_region",
737 PIPE_CONTROL_CS_STALL
);
738 ice
->vtbl
.copy_mem_mem(batch
, dst_bo
, dstx
, iris_resource_bo(src
),
739 src_box
->x
, src_box
->width
);
743 iris_copy_region(&ice
->blorp
, batch
, dst
, dst_level
, dstx
, dsty
, dstz
,
744 src
, src_level
, src_box
);
746 if (util_format_is_depth_and_stencil(dst
->format
) &&
747 util_format_has_stencil(util_format_description(src
->format
))) {
748 struct iris_resource
*junk
, *s_src_res
, *s_dst_res
;
749 iris_get_depth_stencil_resources(src
, &junk
, &s_src_res
);
750 iris_get_depth_stencil_resources(dst
, &junk
, &s_dst_res
);
752 iris_copy_region(&ice
->blorp
, batch
, &s_dst_res
->base
, dst_level
, dstx
,
753 dsty
, dstz
, &s_src_res
->base
, src_level
, src_box
);
756 iris_flush_and_dirty_for_history(ice
, batch
, (struct iris_resource
*) dst
,
757 PIPE_CONTROL_RENDER_TARGET_FLUSH
,
758 "cache history: post copy_region");
762 iris_init_blit_functions(struct pipe_context
*ctx
)
764 ctx
->blit
= iris_blit
;
765 ctx
->resource_copy_region
= iris_resource_copy_region
;