2 * Copyright (C) 2018 Alyssa Rosenzweig
3 * Copyright (C) 2020 Collabora Ltd.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 #include "util/macros.h"
26 #include "util/u_prim.h"
27 #include "util/u_vbuf.h"
29 #include "panfrost-quirks.h"
33 #include "pan_cmdstream.h"
34 #include "pan_context.h"
37 /* If a BO is accessed for a particular shader stage, will it be in the primary
38 * batch (vertex/tiler) or the secondary batch (fragment)? Anything but
39 * fragment will be primary, e.g. compute jobs will be considered
40 * "vertex/tiler" by analogy */
42 static inline uint32_t
43 panfrost_bo_access_for_stage(enum pipe_shader_type stage
)
45 assert(stage
== PIPE_SHADER_FRAGMENT
||
46 stage
== PIPE_SHADER_VERTEX
||
47 stage
== PIPE_SHADER_COMPUTE
);
49 return stage
== PIPE_SHADER_FRAGMENT
?
50 PAN_BO_ACCESS_FRAGMENT
:
51 PAN_BO_ACCESS_VERTEX_TILER
;
55 panfrost_vt_emit_shared_memory(struct panfrost_context
*ctx
,
56 struct mali_vertex_tiler_postfix
*postfix
)
58 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
59 struct panfrost_batch
*batch
= panfrost_get_batch_for_fbo(ctx
);
61 struct mali_shared_memory shared
= {
62 .shared_workgroup_count
= ~0,
65 if (batch
->stack_size
) {
66 struct panfrost_bo
*stack
=
67 panfrost_batch_get_scratchpad(batch
, batch
->stack_size
,
68 dev
->thread_tls_alloc
,
71 shared
.stack_shift
= panfrost_get_stack_shift(batch
->stack_size
);
72 shared
.scratchpad
= stack
->gpu
;
75 postfix
->shared_memory
= panfrost_pool_upload_aligned(&batch
->pool
, &shared
, sizeof(shared
), 64);
79 panfrost_vt_attach_framebuffer(struct panfrost_context
*ctx
,
80 struct mali_vertex_tiler_postfix
*postfix
)
82 struct panfrost_batch
*batch
= panfrost_get_batch_for_fbo(ctx
);
83 postfix
->shared_memory
= panfrost_batch_reserve_framebuffer(batch
);
87 panfrost_vt_update_rasterizer(struct panfrost_rasterizer
*rasterizer
,
88 struct mali_vertex_tiler_prefix
*prefix
,
89 struct mali_vertex_tiler_postfix
*postfix
)
91 postfix
->gl_enables
|= 0x7;
92 SET_BIT(postfix
->gl_enables
, MALI_FRONT_CCW_TOP
,
93 rasterizer
->base
.front_ccw
);
94 SET_BIT(postfix
->gl_enables
, MALI_CULL_FACE_FRONT
,
95 (rasterizer
->base
.cull_face
& PIPE_FACE_FRONT
));
96 SET_BIT(postfix
->gl_enables
, MALI_CULL_FACE_BACK
,
97 (rasterizer
->base
.cull_face
& PIPE_FACE_BACK
));
98 SET_BIT(prefix
->unknown_draw
, MALI_DRAW_FLATSHADE_FIRST
,
99 rasterizer
->base
.flatshade_first
);
103 panfrost_vt_update_primitive_size(struct panfrost_context
*ctx
,
104 struct mali_vertex_tiler_prefix
*prefix
,
105 union midgard_primitive_size
*primitive_size
)
107 struct panfrost_rasterizer
*rasterizer
= ctx
->rasterizer
;
109 if (!panfrost_writes_point_size(ctx
)) {
110 float val
= (prefix
->draw_mode
== MALI_DRAW_MODE_POINTS
) ?
111 rasterizer
->base
.point_size
:
112 rasterizer
->base
.line_width
;
114 primitive_size
->constant
= val
;
119 panfrost_vt_update_occlusion_query(struct panfrost_context
*ctx
,
120 struct mali_vertex_tiler_postfix
*postfix
)
122 SET_BIT(postfix
->gl_enables
, MALI_OCCLUSION_QUERY
, ctx
->occlusion_query
);
123 if (ctx
->occlusion_query
) {
124 postfix
->occlusion_counter
= ctx
->occlusion_query
->bo
->gpu
;
125 panfrost_batch_add_bo(ctx
->batch
, ctx
->occlusion_query
->bo
,
126 PAN_BO_ACCESS_SHARED
|
128 PAN_BO_ACCESS_FRAGMENT
);
130 postfix
->occlusion_counter
= 0;
135 panfrost_vt_init(struct panfrost_context
*ctx
,
136 enum pipe_shader_type stage
,
137 struct mali_vertex_tiler_prefix
*prefix
,
138 struct mali_vertex_tiler_postfix
*postfix
)
140 struct panfrost_device
*device
= pan_device(ctx
->base
.screen
);
142 if (!ctx
->shader
[stage
])
145 memset(prefix
, 0, sizeof(*prefix
));
146 memset(postfix
, 0, sizeof(*postfix
));
148 if (device
->quirks
& IS_BIFROST
) {
149 postfix
->gl_enables
= 0x2;
150 panfrost_vt_emit_shared_memory(ctx
, postfix
);
152 postfix
->gl_enables
= 0x6;
153 panfrost_vt_attach_framebuffer(ctx
, postfix
);
156 if (stage
== PIPE_SHADER_FRAGMENT
) {
157 panfrost_vt_update_occlusion_query(ctx
, postfix
);
158 panfrost_vt_update_rasterizer(ctx
->rasterizer
, prefix
, postfix
);
163 panfrost_translate_index_size(unsigned size
)
167 return MALI_DRAW_INDEXED_UINT8
;
170 return MALI_DRAW_INDEXED_UINT16
;
173 return MALI_DRAW_INDEXED_UINT32
;
176 unreachable("Invalid index size");
180 /* Gets a GPU address for the associated index buffer. Only gauranteed to be
181 * good for the duration of the draw (transient), could last longer. Also get
182 * the bounds on the index buffer for the range accessed by the draw. We do
183 * these operations together because there are natural optimizations which
184 * require them to be together. */
187 panfrost_get_index_buffer_bounded(struct panfrost_context
*ctx
,
188 const struct pipe_draw_info
*info
,
189 unsigned *min_index
, unsigned *max_index
)
191 struct panfrost_resource
*rsrc
= pan_resource(info
->index
.resource
);
192 struct panfrost_batch
*batch
= panfrost_get_batch_for_fbo(ctx
);
193 off_t offset
= info
->start
* info
->index_size
;
194 bool needs_indices
= true;
197 if (info
->max_index
!= ~0u) {
198 *min_index
= info
->min_index
;
199 *max_index
= info
->max_index
;
200 needs_indices
= false;
203 if (!info
->has_user_indices
) {
204 /* Only resources can be directly mapped */
205 panfrost_batch_add_bo(batch
, rsrc
->bo
,
206 PAN_BO_ACCESS_SHARED
|
208 PAN_BO_ACCESS_VERTEX_TILER
);
209 out
= rsrc
->bo
->gpu
+ offset
;
211 /* Check the cache */
212 needs_indices
= !panfrost_minmax_cache_get(rsrc
->index_cache
,
218 /* Otherwise, we need to upload to transient memory */
219 const uint8_t *ibuf8
= (const uint8_t *) info
->index
.user
;
220 struct panfrost_transfer T
=
221 panfrost_pool_alloc_aligned(&batch
->pool
,
222 info
->count
* info
->index_size
,
225 memcpy(T
.cpu
, ibuf8
+ offset
, info
->count
* info
->index_size
);
231 u_vbuf_get_minmax_index(&ctx
->base
, info
, min_index
, max_index
);
233 if (!info
->has_user_indices
)
234 panfrost_minmax_cache_add(rsrc
->index_cache
,
235 info
->start
, info
->count
,
236 *min_index
, *max_index
);
243 panfrost_vt_set_draw_info(struct panfrost_context
*ctx
,
244 const struct pipe_draw_info
*info
,
245 enum mali_draw_mode draw_mode
,
246 struct mali_vertex_tiler_postfix
*vertex_postfix
,
247 struct mali_vertex_tiler_prefix
*tiler_prefix
,
248 struct mali_vertex_tiler_postfix
*tiler_postfix
,
249 unsigned *vertex_count
,
250 unsigned *padded_count
)
252 tiler_prefix
->draw_mode
= draw_mode
;
254 unsigned draw_flags
= 0;
256 if (panfrost_writes_point_size(ctx
))
257 draw_flags
|= MALI_DRAW_VARYING_SIZE
;
259 if (info
->primitive_restart
)
260 draw_flags
|= MALI_DRAW_PRIMITIVE_RESTART_FIXED_INDEX
;
262 /* These doesn't make much sense */
264 draw_flags
|= 0x3000;
266 if (info
->index_size
) {
267 unsigned min_index
= 0, max_index
= 0;
269 tiler_prefix
->indices
= panfrost_get_index_buffer_bounded(ctx
,
274 /* Use the corresponding values */
275 *vertex_count
= max_index
- min_index
+ 1;
276 tiler_postfix
->offset_start
= vertex_postfix
->offset_start
= min_index
+ info
->index_bias
;
277 tiler_prefix
->offset_bias_correction
= -min_index
;
278 tiler_prefix
->index_count
= MALI_POSITIVE(info
->count
);
279 draw_flags
|= panfrost_translate_index_size(info
->index_size
);
281 tiler_prefix
->indices
= 0;
282 *vertex_count
= ctx
->vertex_count
;
283 tiler_postfix
->offset_start
= vertex_postfix
->offset_start
= info
->start
;
284 tiler_prefix
->offset_bias_correction
= 0;
285 tiler_prefix
->index_count
= MALI_POSITIVE(ctx
->vertex_count
);
288 tiler_prefix
->unknown_draw
= draw_flags
;
290 /* Encode the padded vertex count */
292 if (info
->instance_count
> 1) {
293 *padded_count
= panfrost_padded_vertex_count(*vertex_count
);
295 unsigned shift
= __builtin_ctz(ctx
->padded_count
);
296 unsigned k
= ctx
->padded_count
>> (shift
+ 1);
298 tiler_postfix
->instance_shift
= vertex_postfix
->instance_shift
= shift
;
299 tiler_postfix
->instance_odd
= vertex_postfix
->instance_odd
= k
;
301 *padded_count
= *vertex_count
;
303 /* Reset instancing state */
304 tiler_postfix
->instance_shift
= vertex_postfix
->instance_shift
= 0;
305 tiler_postfix
->instance_odd
= vertex_postfix
->instance_odd
= 0;
310 panfrost_emit_compute_shader(struct panfrost_context
*ctx
,
311 enum pipe_shader_type st
,
312 struct mali_shader_meta
*meta
)
314 const struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
315 struct panfrost_shader_state
*ss
= panfrost_get_shader_state(ctx
, st
);
317 memset(meta
, 0, sizeof(*meta
));
318 memcpy(&meta
->shader
, &ss
->shader
, sizeof(ss
->shader
));
320 if (dev
->quirks
& IS_BIFROST
) {
321 struct mali_bifrost_properties_packed prop
;
322 struct mali_preload_vertex_packed preload
;
324 pan_pack(&prop
, BIFROST_PROPERTIES
, cfg
) {
325 cfg
.unknown
= 0x800000; /* XXX */
326 cfg
.uniform_buffer_count
= panfrost_ubo_count(ctx
, st
);
329 /* TODO: True compute shaders */
330 pan_pack(&preload
, PRELOAD_VERTEX
, cfg
) {
331 cfg
.uniform_count
= ss
->uniform_count
;
332 cfg
.vertex_id
= true;
333 cfg
.instance_id
= true;
336 memcpy(&meta
->bifrost_props
, &prop
, sizeof(prop
));
337 memcpy(&meta
->bifrost_preload
, &preload
, sizeof(preload
));
339 struct mali_midgard_properties_packed prop
;
341 pan_pack(&prop
, MIDGARD_PROPERTIES
, cfg
) {
342 cfg
.uniform_buffer_count
= panfrost_ubo_count(ctx
, st
);
343 cfg
.uniform_count
= ss
->uniform_count
;
344 cfg
.work_register_count
= ss
->work_reg_count
;
345 cfg
.writes_globals
= ss
->writes_global
;
346 cfg
.suppress_inf_nan
= true; /* XXX */
349 memcpy(&meta
->midgard_props
, &prop
, sizeof(prop
));
354 translate_tex_wrap(enum pipe_tex_wrap w
)
357 case PIPE_TEX_WRAP_REPEAT
: return MALI_WRAP_MODE_REPEAT
;
358 case PIPE_TEX_WRAP_CLAMP
: return MALI_WRAP_MODE_CLAMP
;
359 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
: return MALI_WRAP_MODE_CLAMP_TO_EDGE
;
360 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
: return MALI_WRAP_MODE_CLAMP_TO_BORDER
;
361 case PIPE_TEX_WRAP_MIRROR_REPEAT
: return MALI_WRAP_MODE_MIRRORED_REPEAT
;
362 case PIPE_TEX_WRAP_MIRROR_CLAMP
: return MALI_WRAP_MODE_MIRRORED_CLAMP
;
363 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE
: return MALI_WRAP_MODE_MIRRORED_CLAMP_TO_EDGE
;
364 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER
: return MALI_WRAP_MODE_MIRRORED_CLAMP_TO_BORDER
;
365 default: unreachable("Invalid wrap");
369 /* The hardware compares in the wrong order order, so we have to flip before
370 * encoding. Yes, really. */
372 static enum mali_func
373 panfrost_sampler_compare_func(const struct pipe_sampler_state
*cso
)
375 if (!cso
->compare_mode
)
376 return MALI_FUNC_NEVER
;
378 enum mali_func f
= panfrost_translate_compare_func(cso
->compare_func
);
379 return panfrost_flip_compare_func(f
);
382 static enum mali_mipmap_mode
383 pan_pipe_to_mipmode(enum pipe_tex_mipfilter f
)
386 case PIPE_TEX_MIPFILTER_NEAREST
: return MALI_MIPMAP_MODE_NEAREST
;
387 case PIPE_TEX_MIPFILTER_LINEAR
: return MALI_MIPMAP_MODE_TRILINEAR
;
388 case PIPE_TEX_MIPFILTER_NONE
: return MALI_MIPMAP_MODE_NONE
;
389 default: unreachable("Invalid");
393 void panfrost_sampler_desc_init(const struct pipe_sampler_state
*cso
,
394 struct mali_midgard_sampler_packed
*hw
)
396 pan_pack(hw
, MIDGARD_SAMPLER
, cfg
) {
397 cfg
.magnify_nearest
= cso
->mag_img_filter
== PIPE_TEX_FILTER_NEAREST
;
398 cfg
.minify_nearest
= cso
->min_img_filter
== PIPE_TEX_FILTER_NEAREST
;
399 cfg
.mipmap_mode
= (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_LINEAR
) ?
400 MALI_MIPMAP_MODE_TRILINEAR
: MALI_MIPMAP_MODE_NEAREST
;
401 cfg
.normalized_coordinates
= cso
->normalized_coords
;
403 cfg
.lod_bias
= FIXED_16(cso
->lod_bias
, true);
405 cfg
.minimum_lod
= FIXED_16(cso
->min_lod
, false);
407 /* If necessary, we disable mipmapping in the sampler descriptor by
408 * clamping the LOD as tight as possible (from 0 to epsilon,
409 * essentially -- remember these are fixed point numbers, so
412 cfg
.maximum_lod
= (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_NONE
) ?
413 cfg
.minimum_lod
+ 1 :
414 FIXED_16(cso
->max_lod
, false);
416 cfg
.wrap_mode_s
= translate_tex_wrap(cso
->wrap_s
);
417 cfg
.wrap_mode_t
= translate_tex_wrap(cso
->wrap_t
);
418 cfg
.wrap_mode_r
= translate_tex_wrap(cso
->wrap_r
);
420 cfg
.compare_function
= panfrost_sampler_compare_func(cso
);
421 cfg
.seamless_cube_map
= cso
->seamless_cube_map
;
423 cfg
.border_color_r
= cso
->border_color
.f
[0];
424 cfg
.border_color_g
= cso
->border_color
.f
[1];
425 cfg
.border_color_b
= cso
->border_color
.f
[2];
426 cfg
.border_color_a
= cso
->border_color
.f
[3];
430 void panfrost_sampler_desc_init_bifrost(const struct pipe_sampler_state
*cso
,
431 struct mali_bifrost_sampler_packed
*hw
)
433 pan_pack(hw
, BIFROST_SAMPLER
, cfg
) {
434 cfg
.magnify_linear
= cso
->mag_img_filter
== PIPE_TEX_FILTER_LINEAR
;
435 cfg
.minify_linear
= cso
->min_img_filter
== PIPE_TEX_FILTER_LINEAR
;
436 cfg
.mipmap_mode
= pan_pipe_to_mipmode(cso
->min_mip_filter
);
437 cfg
.normalized_coordinates
= cso
->normalized_coords
;
439 cfg
.lod_bias
= FIXED_16(cso
->lod_bias
, true);
440 cfg
.minimum_lod
= FIXED_16(cso
->min_lod
, false);
441 cfg
.maximum_lod
= FIXED_16(cso
->max_lod
, false);
443 cfg
.wrap_mode_s
= translate_tex_wrap(cso
->wrap_s
);
444 cfg
.wrap_mode_t
= translate_tex_wrap(cso
->wrap_t
);
445 cfg
.wrap_mode_r
= translate_tex_wrap(cso
->wrap_r
);
447 cfg
.compare_function
= panfrost_sampler_compare_func(cso
);
448 cfg
.seamless_cube_map
= cso
->seamless_cube_map
;
453 panfrost_fs_required(
454 struct panfrost_shader_state
*fs
,
455 struct panfrost_blend_final
*blend
,
458 /* If we generally have side effects */
462 /* If colour is written we need to execute */
463 for (unsigned i
= 0; i
< rt_count
; ++i
) {
464 if (!blend
[i
].no_colour
)
468 /* If depth is written and not implied we need to execute.
469 * TODO: Predicate on Z/S writes being enabled */
470 return (fs
->writes_depth
|| fs
->writes_stencil
);
474 panfrost_emit_blend(struct panfrost_batch
*batch
, void *rts
,
475 struct panfrost_blend_final
*blend
)
477 const struct panfrost_device
*dev
= pan_device(batch
->ctx
->base
.screen
);
478 struct panfrost_shader_state
*fs
= panfrost_get_shader_state(batch
->ctx
, PIPE_SHADER_FRAGMENT
);
479 unsigned rt_count
= batch
->key
.nr_cbufs
;
481 struct bifrost_blend_rt
*brts
= rts
;
482 struct midgard_blend_rt
*mrts
= rts
;
484 /* Disable blending for depth-only on Bifrost */
486 if (rt_count
== 0 && dev
->quirks
& IS_BIFROST
)
489 for (unsigned i
= 0; i
< rt_count
; ++i
) {
492 pan_pack(&flags
, BLEND_FLAGS
, cfg
) {
493 if (blend
[i
].no_colour
) {
498 batch
->draws
|= (PIPE_CLEAR_COLOR0
<< i
);
500 cfg
.srgb
= util_format_is_srgb(batch
->key
.cbufs
[i
]->format
);
501 cfg
.load_destination
= blend
[i
].load_dest
;
502 cfg
.dither_disable
= !batch
->ctx
->blend
->base
.dither
;
504 if (!(dev
->quirks
& IS_BIFROST
))
505 cfg
.midgard_blend_shader
= blend
[i
].is_shader
;
508 if (dev
->quirks
& IS_BIFROST
) {
509 brts
[i
].flags
= flags
;
511 if (blend
[i
].is_shader
) {
512 /* The blend shader's address needs to be at
513 * the same top 32 bit as the fragment shader.
514 * TODO: Ensure that's always the case.
516 assert((blend
[i
].shader
.gpu
& (0xffffffffull
<< 32)) ==
517 (fs
->bo
->gpu
& (0xffffffffull
<< 32)));
518 brts
[i
].shader
= blend
[i
].shader
.gpu
;
521 enum pipe_format format
= batch
->key
.cbufs
[i
]->format
;
522 const struct util_format_description
*format_desc
;
523 format_desc
= util_format_description(format
);
525 brts
[i
].equation
= blend
[i
].equation
.equation
;
527 /* TODO: this is a bit more complicated */
528 brts
[i
].constant
= blend
[i
].equation
.constant
;
530 brts
[i
].format
= panfrost_format_to_bifrost_blend(format_desc
);
532 /* 0x19 disables blending and forces REPLACE
533 * mode (equivalent to rgb_mode = alpha_mode =
534 * x122, colour mask = 0xF). 0x1a allows
536 brts
[i
].unk2
= blend
[i
].opaque
? 0x19 : 0x1a;
538 brts
[i
].shader_type
= fs
->blend_types
[i
];
541 memcpy(&mrts
[i
].flags
, &flags
, sizeof(flags
));
543 if (blend
[i
].is_shader
) {
544 mrts
[i
].blend
.shader
= blend
[i
].shader
.gpu
| blend
[i
].shader
.first_tag
;
546 mrts
[i
].blend
.equation
= blend
[i
].equation
.equation
;
547 mrts
[i
].blend
.constant
= blend
[i
].equation
.constant
;
553 static struct mali_shader_packed
554 panfrost_pack_shaderless(bool midgard
)
556 struct mali_shader_packed pack
;
558 pan_pack(&pack
, SHADER
, cfg
) {
559 cfg
.shader
= midgard
? 0x1 : 0x0;
566 panfrost_emit_frag_shader(struct panfrost_context
*ctx
,
567 struct mali_shader_meta
*fragmeta
,
568 struct panfrost_blend_final
*blend
)
570 const struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
571 struct panfrost_shader_state
*fs
;
573 fs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_FRAGMENT
);
575 struct pipe_rasterizer_state
*rast
= &ctx
->rasterizer
->base
;
576 const struct panfrost_zsa_state
*zsa
= ctx
->depth_stencil
;
577 unsigned rt_count
= ctx
->pipe_framebuffer
.nr_cbufs
;
579 memset(fragmeta
, 0, sizeof(*fragmeta
));
580 memcpy(&fragmeta
->shader
, &fs
->shader
, sizeof(fs
->shader
));
582 if (dev
->quirks
& IS_BIFROST
) {
583 struct mali_bifrost_properties_packed prop
;
584 struct mali_preload_fragment_packed preload
;
586 bool no_blend
= true;
588 for (unsigned i
= 0; i
< rt_count
; ++i
)
589 no_blend
&= (!blend
[i
].load_dest
| blend
[i
].no_colour
);
591 pan_pack(&prop
, BIFROST_PROPERTIES
, cfg
) {
592 cfg
.unknown
= 0x950020; /* XXX */
593 cfg
.uniform_buffer_count
= panfrost_ubo_count(ctx
, PIPE_SHADER_FRAGMENT
);
594 cfg
.early_z_enable
= !fs
->can_discard
&& !fs
->writes_depth
&& no_blend
;
597 pan_pack(&preload
, PRELOAD_FRAGMENT
, cfg
) {
598 cfg
.uniform_count
= fs
->uniform_count
;
599 cfg
.fragment_position
= fs
->reads_frag_coord
;
602 memcpy(&fragmeta
->bifrost_props
, &prop
, sizeof(prop
));
603 memcpy(&fragmeta
->bifrost_preload
, &preload
, sizeof(preload
));
605 struct mali_midgard_properties_packed prop
;
607 /* Reasons to disable early-Z from a shader perspective */
608 bool late_z
= fs
->can_discard
|| fs
->writes_global
||
609 fs
->writes_depth
|| fs
->writes_stencil
;
611 /* Reasons to disable early-Z from a CSO perspective */
612 bool alpha_to_coverage
= ctx
->blend
->base
.alpha_to_coverage
;
614 /* If either depth or stencil is enabled, discard matters */
616 (zsa
->base
.depth
.enabled
&& zsa
->base
.depth
.func
!= PIPE_FUNC_ALWAYS
) ||
617 zsa
->base
.stencil
[0].enabled
;
619 bool has_blend_shader
= false;
621 for (unsigned c
= 0; c
< rt_count
; ++c
)
622 has_blend_shader
|= blend
[c
].is_shader
;
624 pan_pack(&prop
, MIDGARD_PROPERTIES
, cfg
) {
625 cfg
.uniform_buffer_count
= panfrost_ubo_count(ctx
, PIPE_SHADER_FRAGMENT
);
626 cfg
.uniform_count
= fs
->uniform_count
;
627 cfg
.work_register_count
= fs
->work_reg_count
;
628 cfg
.writes_globals
= fs
->writes_global
;
629 cfg
.suppress_inf_nan
= true; /* XXX */
631 /* TODO: Reduce this limit? */
632 if (has_blend_shader
)
633 cfg
.work_register_count
= MAX2(cfg
.work_register_count
, 8);
635 cfg
.stencil_from_shader
= fs
->writes_stencil
;
636 cfg
.helper_invocation_enable
= fs
->helper_invocations
;
637 cfg
.depth_source
= fs
->writes_depth
?
638 MALI_DEPTH_SOURCE_SHADER
:
639 MALI_DEPTH_SOURCE_FIXED_FUNCTION
;
641 /* Depend on other state */
642 cfg
.early_z_enable
= !(late_z
|| alpha_to_coverage
);
643 cfg
.reads_tilebuffer
= fs
->outputs_read
|| (!zs_enabled
&& fs
->can_discard
);
644 cfg
.reads_depth_stencil
= zs_enabled
&& fs
->can_discard
;
647 memcpy(&fragmeta
->midgard_props
, &prop
, sizeof(prop
));
650 bool msaa
= rast
->multisample
;
651 fragmeta
->coverage_mask
= msaa
? ctx
->sample_mask
: ~0;
653 fragmeta
->unknown2_3
= MALI_DEPTH_FUNC(MALI_FUNC_ALWAYS
) | 0x10;
654 fragmeta
->unknown2_4
= 0x4e0;
656 /* TODO: Sample size */
657 SET_BIT(fragmeta
->unknown2_3
, MALI_HAS_MSAA
, msaa
);
658 SET_BIT(fragmeta
->unknown2_4
, MALI_NO_MSAA
, !msaa
);
660 /* EXT_shader_framebuffer_fetch requires the shader to be run
661 * per-sample when outputs are read. */
662 bool per_sample
= ctx
->min_samples
> 1 || fs
->outputs_read
;
663 SET_BIT(fragmeta
->unknown2_3
, MALI_PER_SAMPLE
, msaa
&& per_sample
);
665 fragmeta
->depth_units
= rast
->offset_units
* 2.0f
;
666 fragmeta
->depth_factor
= rast
->offset_scale
;
668 /* XXX: Which bit is which? Does this maybe allow offseting not-tri? */
670 SET_BIT(fragmeta
->unknown2_4
, MALI_DEPTH_RANGE_A
, rast
->offset_tri
);
671 SET_BIT(fragmeta
->unknown2_4
, MALI_DEPTH_RANGE_B
, rast
->offset_tri
);
673 SET_BIT(fragmeta
->unknown2_3
, MALI_DEPTH_CLIP_NEAR
, rast
->depth_clip_near
);
674 SET_BIT(fragmeta
->unknown2_3
, MALI_DEPTH_CLIP_FAR
, rast
->depth_clip_far
);
676 SET_BIT(fragmeta
->unknown2_4
, MALI_STENCIL_TEST
,
677 zsa
->base
.stencil
[0].enabled
);
679 fragmeta
->stencil_mask_front
= zsa
->stencil_mask_front
;
680 fragmeta
->stencil_mask_back
= zsa
->stencil_mask_back
;
682 /* Bottom bits for stencil ref, exactly one word */
683 fragmeta
->stencil_front
.opaque
[0] = zsa
->stencil_front
.opaque
[0] | ctx
->stencil_ref
.ref_value
[0];
685 /* If back-stencil is not enabled, use the front values */
687 if (zsa
->base
.stencil
[1].enabled
)
688 fragmeta
->stencil_back
.opaque
[0] = zsa
->stencil_back
.opaque
[0] | ctx
->stencil_ref
.ref_value
[1];
690 fragmeta
->stencil_back
= fragmeta
->stencil_front
;
692 SET_BIT(fragmeta
->unknown2_3
, MALI_DEPTH_WRITEMASK
,
693 zsa
->base
.depth
.writemask
);
695 fragmeta
->unknown2_3
&= ~MALI_DEPTH_FUNC_MASK
;
696 fragmeta
->unknown2_3
|= MALI_DEPTH_FUNC(panfrost_translate_compare_func(
697 zsa
->base
.depth
.enabled
? zsa
->base
.depth
.func
: PIPE_FUNC_ALWAYS
));
699 SET_BIT(fragmeta
->unknown2_4
, MALI_ALPHA_TO_COVERAGE
,
700 ctx
->blend
->base
.alpha_to_coverage
);
702 /* Disable shader execution if we can */
703 if (!panfrost_fs_required(fs
, blend
, rt_count
)) {
704 struct mali_shader_packed shader
=
705 panfrost_pack_shaderless(!(dev
->quirks
& IS_BIFROST
));
707 memcpy(&fragmeta
->shader
, &shader
, sizeof(shader
));
709 struct mali_midgard_properties_packed prop
;
711 if (dev
->quirks
& IS_BIFROST
) {
712 pan_pack(&prop
, BIFROST_PROPERTIES
, cfg
) {
713 cfg
.unknown
= 0x950020; /* XXX */
714 cfg
.early_z_enable
= true;
717 pan_pack(&prop
, MIDGARD_PROPERTIES
, cfg
) {
718 cfg
.work_register_count
= 1;
719 cfg
.depth_source
= MALI_DEPTH_SOURCE_FIXED_FUNCTION
;
720 cfg
.early_z_enable
= true;
724 memcpy(&fragmeta
->midgard_props
, &prop
, sizeof(prop
));
727 if (dev
->quirks
& MIDGARD_SFBD
) {
728 /* When only a single render target platform is used, the blend
729 * information is inside the shader meta itself. We additionally
730 * need to signal CAN_DISCARD for nontrivial blend modes (so
731 * we're able to read back the destination buffer) */
733 if (blend
[0].no_colour
)
736 fragmeta
->unknown2_4
|= MALI_SFBD_ENABLE
;
738 SET_BIT(fragmeta
->unknown2_4
, MALI_SFBD_SRGB
,
739 util_format_is_srgb(ctx
->pipe_framebuffer
.cbufs
[0]->format
));
741 SET_BIT(fragmeta
->unknown2_3
, MALI_HAS_BLEND_SHADER
,
744 if (blend
[0].is_shader
) {
745 fragmeta
->blend
.shader
= blend
[0].shader
.gpu
|
746 blend
[0].shader
.first_tag
;
748 fragmeta
->blend
.equation
= blend
[0].equation
.equation
;
749 fragmeta
->blend
.constant
= blend
[0].equation
.constant
;
752 SET_BIT(fragmeta
->unknown2_3
, MALI_CAN_DISCARD
,
755 SET_BIT(fragmeta
->unknown2_4
, MALI_NO_DITHER
, !ctx
->blend
->base
.dither
);
756 } else if (!(dev
->quirks
& IS_BIFROST
)) {
757 /* Bug where MRT-capable hw apparently reads the last blend
758 * shader from here instead of the usual location? */
760 for (signed rt
= ((signed) rt_count
- 1); rt
>= 0; --rt
) {
761 if (!blend
[rt
].is_shader
)
764 fragmeta
->blend
.shader
= blend
[rt
].shader
.gpu
|
765 blend
[rt
].shader
.first_tag
;
772 panfrost_emit_shader_meta(struct panfrost_batch
*batch
,
773 enum pipe_shader_type st
,
774 struct mali_vertex_tiler_postfix
*postfix
)
776 struct panfrost_context
*ctx
= batch
->ctx
;
777 struct panfrost_shader_state
*ss
= panfrost_get_shader_state(ctx
, st
);
784 struct mali_shader_meta meta
;
786 /* Add the shader BO to the batch. */
787 panfrost_batch_add_bo(batch
, ss
->bo
,
788 PAN_BO_ACCESS_PRIVATE
|
790 panfrost_bo_access_for_stage(st
));
794 if (st
== PIPE_SHADER_FRAGMENT
) {
795 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
796 unsigned rt_count
= MAX2(ctx
->pipe_framebuffer
.nr_cbufs
, 1);
797 size_t desc_size
= sizeof(meta
);
799 struct panfrost_transfer xfer
;
802 if (dev
->quirks
& MIDGARD_SFBD
)
804 else if (dev
->quirks
& IS_BIFROST
)
805 rt_size
= sizeof(struct bifrost_blend_rt
);
807 rt_size
= sizeof(struct midgard_blend_rt
);
809 desc_size
+= rt_size
* rt_count
;
812 rts
= rzalloc_size(ctx
, rt_size
* rt_count
);
814 struct panfrost_blend_final blend
[PIPE_MAX_COLOR_BUFS
];
816 for (unsigned c
= 0; c
< ctx
->pipe_framebuffer
.nr_cbufs
; ++c
)
817 blend
[c
] = panfrost_get_blend_for_context(ctx
, c
);
819 panfrost_emit_frag_shader(ctx
, &meta
, blend
);
821 if (!(dev
->quirks
& MIDGARD_SFBD
))
822 panfrost_emit_blend(batch
, rts
, blend
);
824 batch
->draws
|= PIPE_CLEAR_COLOR0
;
826 xfer
= panfrost_pool_alloc_aligned(&batch
->pool
, desc_size
, sizeof(meta
));
828 memcpy(xfer
.cpu
, &meta
, sizeof(meta
));
829 memcpy(xfer
.cpu
+ sizeof(meta
), rts
, rt_size
* rt_count
);
834 shader_ptr
= xfer
.gpu
;
836 panfrost_emit_compute_shader(ctx
, st
, &meta
);
838 shader_ptr
= panfrost_pool_upload(&batch
->pool
, &meta
,
842 postfix
->shader
= shader_ptr
;
846 panfrost_emit_viewport(struct panfrost_batch
*batch
,
847 struct mali_vertex_tiler_postfix
*tiler_postfix
)
849 struct panfrost_context
*ctx
= batch
->ctx
;
850 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
851 const struct pipe_scissor_state
*ss
= &ctx
->scissor
;
852 const struct pipe_rasterizer_state
*rast
= &ctx
->rasterizer
->base
;
853 const struct pipe_framebuffer_state
*fb
= &ctx
->pipe_framebuffer
;
855 /* Derive min/max from translate/scale. Note since |x| >= 0 by
856 * definition, we have that -|x| <= |x| hence translate - |scale| <=
857 * translate + |scale|, so the ordering is correct here. */
858 float vp_minx
= (int) (vp
->translate
[0] - fabsf(vp
->scale
[0]));
859 float vp_maxx
= (int) (vp
->translate
[0] + fabsf(vp
->scale
[0]));
860 float vp_miny
= (int) (vp
->translate
[1] - fabsf(vp
->scale
[1]));
861 float vp_maxy
= (int) (vp
->translate
[1] + fabsf(vp
->scale
[1]));
862 float minz
= (vp
->translate
[2] - fabsf(vp
->scale
[2]));
863 float maxz
= (vp
->translate
[2] + fabsf(vp
->scale
[2]));
865 /* Scissor to the intersection of viewport and to the scissor, clamped
866 * to the framebuffer */
868 unsigned minx
= MIN2(fb
->width
, vp_minx
);
869 unsigned maxx
= MIN2(fb
->width
, vp_maxx
);
870 unsigned miny
= MIN2(fb
->height
, vp_miny
);
871 unsigned maxy
= MIN2(fb
->height
, vp_maxy
);
873 if (ss
&& rast
->scissor
) {
874 minx
= MAX2(ss
->minx
, minx
);
875 miny
= MAX2(ss
->miny
, miny
);
876 maxx
= MIN2(ss
->maxx
, maxx
);
877 maxy
= MIN2(ss
->maxy
, maxy
);
880 struct panfrost_transfer T
= panfrost_pool_alloc(&batch
->pool
, MALI_VIEWPORT_LENGTH
);
882 pan_pack(T
.cpu
, VIEWPORT
, cfg
) {
883 cfg
.scissor_minimum_x
= minx
;
884 cfg
.scissor_minimum_y
= miny
;
885 cfg
.scissor_maximum_x
= maxx
- 1;
886 cfg
.scissor_maximum_y
= maxy
- 1;
888 cfg
.minimum_z
= rast
->depth_clip_near
? minz
: -INFINITY
;
889 cfg
.maximum_z
= rast
->depth_clip_far
? maxz
: INFINITY
;
892 tiler_postfix
->viewport
= T
.gpu
;
893 panfrost_batch_union_scissor(batch
, minx
, miny
, maxx
, maxy
);
897 panfrost_map_constant_buffer_gpu(struct panfrost_batch
*batch
,
898 enum pipe_shader_type st
,
899 struct panfrost_constant_buffer
*buf
,
902 struct pipe_constant_buffer
*cb
= &buf
->cb
[index
];
903 struct panfrost_resource
*rsrc
= pan_resource(cb
->buffer
);
906 panfrost_batch_add_bo(batch
, rsrc
->bo
,
907 PAN_BO_ACCESS_SHARED
|
909 panfrost_bo_access_for_stage(st
));
911 /* Alignment gauranteed by
912 * PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT */
913 return rsrc
->bo
->gpu
+ cb
->buffer_offset
;
914 } else if (cb
->user_buffer
) {
915 return panfrost_pool_upload_aligned(&batch
->pool
,
918 cb
->buffer_size
, 16);
920 unreachable("No constant buffer");
924 struct sysval_uniform
{
934 panfrost_upload_viewport_scale_sysval(struct panfrost_batch
*batch
,
935 struct sysval_uniform
*uniform
)
937 struct panfrost_context
*ctx
= batch
->ctx
;
938 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
940 uniform
->f
[0] = vp
->scale
[0];
941 uniform
->f
[1] = vp
->scale
[1];
942 uniform
->f
[2] = vp
->scale
[2];
946 panfrost_upload_viewport_offset_sysval(struct panfrost_batch
*batch
,
947 struct sysval_uniform
*uniform
)
949 struct panfrost_context
*ctx
= batch
->ctx
;
950 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
952 uniform
->f
[0] = vp
->translate
[0];
953 uniform
->f
[1] = vp
->translate
[1];
954 uniform
->f
[2] = vp
->translate
[2];
957 static void panfrost_upload_txs_sysval(struct panfrost_batch
*batch
,
958 enum pipe_shader_type st
,
959 unsigned int sysvalid
,
960 struct sysval_uniform
*uniform
)
962 struct panfrost_context
*ctx
= batch
->ctx
;
963 unsigned texidx
= PAN_SYSVAL_ID_TO_TXS_TEX_IDX(sysvalid
);
964 unsigned dim
= PAN_SYSVAL_ID_TO_TXS_DIM(sysvalid
);
965 bool is_array
= PAN_SYSVAL_ID_TO_TXS_IS_ARRAY(sysvalid
);
966 struct pipe_sampler_view
*tex
= &ctx
->sampler_views
[st
][texidx
]->base
;
969 uniform
->i
[0] = u_minify(tex
->texture
->width0
, tex
->u
.tex
.first_level
);
972 uniform
->i
[1] = u_minify(tex
->texture
->height0
,
973 tex
->u
.tex
.first_level
);
976 uniform
->i
[2] = u_minify(tex
->texture
->depth0
,
977 tex
->u
.tex
.first_level
);
980 uniform
->i
[dim
] = tex
->texture
->array_size
;
984 panfrost_upload_ssbo_sysval(struct panfrost_batch
*batch
,
985 enum pipe_shader_type st
,
987 struct sysval_uniform
*uniform
)
989 struct panfrost_context
*ctx
= batch
->ctx
;
991 assert(ctx
->ssbo_mask
[st
] & (1 << ssbo_id
));
992 struct pipe_shader_buffer sb
= ctx
->ssbo
[st
][ssbo_id
];
994 /* Compute address */
995 struct panfrost_bo
*bo
= pan_resource(sb
.buffer
)->bo
;
997 panfrost_batch_add_bo(batch
, bo
,
998 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_RW
|
999 panfrost_bo_access_for_stage(st
));
1001 /* Upload address and size as sysval */
1002 uniform
->du
[0] = bo
->gpu
+ sb
.buffer_offset
;
1003 uniform
->u
[2] = sb
.buffer_size
;
1007 panfrost_upload_sampler_sysval(struct panfrost_batch
*batch
,
1008 enum pipe_shader_type st
,
1010 struct sysval_uniform
*uniform
)
1012 struct panfrost_context
*ctx
= batch
->ctx
;
1013 struct pipe_sampler_state
*sampl
= &ctx
->samplers
[st
][samp_idx
]->base
;
1015 uniform
->f
[0] = sampl
->min_lod
;
1016 uniform
->f
[1] = sampl
->max_lod
;
1017 uniform
->f
[2] = sampl
->lod_bias
;
1019 /* Even without any errata, Midgard represents "no mipmapping" as
1020 * fixing the LOD with the clamps; keep behaviour consistent. c.f.
1021 * panfrost_create_sampler_state which also explains our choice of
1022 * epsilon value (again to keep behaviour consistent) */
1024 if (sampl
->min_mip_filter
== PIPE_TEX_MIPFILTER_NONE
)
1025 uniform
->f
[1] = uniform
->f
[0] + (1.0/256.0);
1029 panfrost_upload_num_work_groups_sysval(struct panfrost_batch
*batch
,
1030 struct sysval_uniform
*uniform
)
1032 struct panfrost_context
*ctx
= batch
->ctx
;
1034 uniform
->u
[0] = ctx
->compute_grid
->grid
[0];
1035 uniform
->u
[1] = ctx
->compute_grid
->grid
[1];
1036 uniform
->u
[2] = ctx
->compute_grid
->grid
[2];
1040 panfrost_upload_sysvals(struct panfrost_batch
*batch
, void *buf
,
1041 struct panfrost_shader_state
*ss
,
1042 enum pipe_shader_type st
)
1044 struct sysval_uniform
*uniforms
= (void *)buf
;
1046 for (unsigned i
= 0; i
< ss
->sysval_count
; ++i
) {
1047 int sysval
= ss
->sysval
[i
];
1049 switch (PAN_SYSVAL_TYPE(sysval
)) {
1050 case PAN_SYSVAL_VIEWPORT_SCALE
:
1051 panfrost_upload_viewport_scale_sysval(batch
,
1054 case PAN_SYSVAL_VIEWPORT_OFFSET
:
1055 panfrost_upload_viewport_offset_sysval(batch
,
1058 case PAN_SYSVAL_TEXTURE_SIZE
:
1059 panfrost_upload_txs_sysval(batch
, st
,
1060 PAN_SYSVAL_ID(sysval
),
1063 case PAN_SYSVAL_SSBO
:
1064 panfrost_upload_ssbo_sysval(batch
, st
,
1065 PAN_SYSVAL_ID(sysval
),
1068 case PAN_SYSVAL_NUM_WORK_GROUPS
:
1069 panfrost_upload_num_work_groups_sysval(batch
,
1072 case PAN_SYSVAL_SAMPLER
:
1073 panfrost_upload_sampler_sysval(batch
, st
,
1074 PAN_SYSVAL_ID(sysval
),
1084 panfrost_map_constant_buffer_cpu(struct panfrost_constant_buffer
*buf
,
1087 struct pipe_constant_buffer
*cb
= &buf
->cb
[index
];
1088 struct panfrost_resource
*rsrc
= pan_resource(cb
->buffer
);
1091 return rsrc
->bo
->cpu
;
1092 else if (cb
->user_buffer
)
1093 return cb
->user_buffer
;
1095 unreachable("No constant buffer");
1099 panfrost_emit_const_buf(struct panfrost_batch
*batch
,
1100 enum pipe_shader_type stage
,
1101 struct mali_vertex_tiler_postfix
*postfix
)
1103 struct panfrost_context
*ctx
= batch
->ctx
;
1104 struct panfrost_shader_variants
*all
= ctx
->shader
[stage
];
1109 struct panfrost_constant_buffer
*buf
= &ctx
->constant_buffer
[stage
];
1111 struct panfrost_shader_state
*ss
= &all
->variants
[all
->active_variant
];
1113 /* Uniforms are implicitly UBO #0 */
1114 bool has_uniforms
= buf
->enabled_mask
& (1 << 0);
1116 /* Allocate room for the sysval and the uniforms */
1117 size_t sys_size
= sizeof(float) * 4 * ss
->sysval_count
;
1118 size_t uniform_size
= has_uniforms
? (buf
->cb
[0].buffer_size
) : 0;
1119 size_t size
= sys_size
+ uniform_size
;
1120 struct panfrost_transfer transfer
=
1121 panfrost_pool_alloc_aligned(&batch
->pool
, size
, 16);
1123 /* Upload sysvals requested by the shader */
1124 panfrost_upload_sysvals(batch
, transfer
.cpu
, ss
, stage
);
1126 /* Upload uniforms */
1127 if (has_uniforms
&& uniform_size
) {
1128 const void *cpu
= panfrost_map_constant_buffer_cpu(buf
, 0);
1129 memcpy(transfer
.cpu
+ sys_size
, cpu
, uniform_size
);
1132 /* Next up, attach UBOs. UBO #0 is the uniforms we just
1135 unsigned ubo_count
= panfrost_ubo_count(ctx
, stage
);
1136 assert(ubo_count
>= 1);
1138 size_t sz
= MALI_UNIFORM_BUFFER_LENGTH
* ubo_count
;
1139 struct panfrost_transfer ubos
=
1140 panfrost_pool_alloc_aligned(&batch
->pool
, sz
,
1141 MALI_UNIFORM_BUFFER_LENGTH
);
1143 uint64_t *ubo_ptr
= (uint64_t *) ubos
.cpu
;
1145 /* Upload uniforms as a UBO */
1148 pan_pack(ubo_ptr
, UNIFORM_BUFFER
, cfg
) {
1149 cfg
.entries
= DIV_ROUND_UP(size
, 16);
1150 cfg
.pointer
= transfer
.gpu
;
1156 /* The rest are honest-to-goodness UBOs */
1158 for (unsigned ubo
= 1; ubo
< ubo_count
; ++ubo
) {
1159 size_t usz
= buf
->cb
[ubo
].buffer_size
;
1160 bool enabled
= buf
->enabled_mask
& (1 << ubo
);
1161 bool empty
= usz
== 0;
1163 if (!enabled
|| empty
) {
1168 pan_pack(ubo_ptr
+ ubo
, UNIFORM_BUFFER
, cfg
) {
1169 cfg
.entries
= DIV_ROUND_UP(usz
, 16);
1170 cfg
.pointer
= panfrost_map_constant_buffer_gpu(batch
,
1175 postfix
->uniforms
= transfer
.gpu
;
1176 postfix
->uniform_buffers
= ubos
.gpu
;
1178 buf
->dirty_mask
= 0;
1182 panfrost_emit_shared_memory(struct panfrost_batch
*batch
,
1183 const struct pipe_grid_info
*info
,
1184 struct midgard_payload_vertex_tiler
*vtp
)
1186 struct panfrost_context
*ctx
= batch
->ctx
;
1187 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
1188 struct panfrost_shader_variants
*all
= ctx
->shader
[PIPE_SHADER_COMPUTE
];
1189 struct panfrost_shader_state
*ss
= &all
->variants
[all
->active_variant
];
1190 unsigned single_size
= util_next_power_of_two(MAX2(ss
->shared_size
,
1193 unsigned log2_instances
=
1194 util_logbase2_ceil(info
->grid
[0]) +
1195 util_logbase2_ceil(info
->grid
[1]) +
1196 util_logbase2_ceil(info
->grid
[2]);
1198 unsigned shared_size
= single_size
* (1 << log2_instances
) * dev
->core_count
;
1199 struct panfrost_bo
*bo
= panfrost_batch_get_shared_memory(batch
,
1203 struct mali_shared_memory shared
= {
1204 .shared_memory
= bo
->gpu
,
1205 .shared_workgroup_count
= log2_instances
,
1206 .shared_shift
= util_logbase2(single_size
) + 1
1209 vtp
->postfix
.shared_memory
= panfrost_pool_upload_aligned(&batch
->pool
, &shared
,
1210 sizeof(shared
), 64);
1214 panfrost_get_tex_desc(struct panfrost_batch
*batch
,
1215 enum pipe_shader_type st
,
1216 struct panfrost_sampler_view
*view
)
1219 return (mali_ptr
) 0;
1221 struct pipe_sampler_view
*pview
= &view
->base
;
1222 struct panfrost_resource
*rsrc
= pan_resource(pview
->texture
);
1224 /* Add the BO to the job so it's retained until the job is done. */
1226 panfrost_batch_add_bo(batch
, rsrc
->bo
,
1227 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1228 panfrost_bo_access_for_stage(st
));
1230 panfrost_batch_add_bo(batch
, view
->bo
,
1231 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1232 panfrost_bo_access_for_stage(st
));
1234 return view
->bo
->gpu
;
1238 panfrost_update_sampler_view(struct panfrost_sampler_view
*view
,
1239 struct pipe_context
*pctx
)
1241 struct panfrost_resource
*rsrc
= pan_resource(view
->base
.texture
);
1242 if (view
->texture_bo
!= rsrc
->bo
->gpu
||
1243 view
->modifier
!= rsrc
->modifier
) {
1244 panfrost_bo_unreference(view
->bo
);
1245 panfrost_create_sampler_view_bo(view
, pctx
, &rsrc
->base
);
1250 panfrost_emit_texture_descriptors(struct panfrost_batch
*batch
,
1251 enum pipe_shader_type stage
,
1252 struct mali_vertex_tiler_postfix
*postfix
)
1254 struct panfrost_context
*ctx
= batch
->ctx
;
1255 struct panfrost_device
*device
= pan_device(ctx
->base
.screen
);
1257 if (!ctx
->sampler_view_count
[stage
])
1260 if (device
->quirks
& IS_BIFROST
) {
1261 struct panfrost_transfer T
= panfrost_pool_alloc_aligned(&batch
->pool
,
1262 MALI_BIFROST_TEXTURE_LENGTH
*
1263 ctx
->sampler_view_count
[stage
],
1264 MALI_BIFROST_TEXTURE_LENGTH
);
1266 struct mali_bifrost_texture_packed
*out
=
1267 (struct mali_bifrost_texture_packed
*) T
.cpu
;
1269 for (int i
= 0; i
< ctx
->sampler_view_count
[stage
]; ++i
) {
1270 struct panfrost_sampler_view
*view
= ctx
->sampler_views
[stage
][i
];
1271 struct pipe_sampler_view
*pview
= &view
->base
;
1272 struct panfrost_resource
*rsrc
= pan_resource(pview
->texture
);
1274 panfrost_update_sampler_view(view
, &ctx
->base
);
1275 out
[i
] = view
->bifrost_descriptor
;
1277 /* Add the BOs to the job so they are retained until the job is done. */
1279 panfrost_batch_add_bo(batch
, rsrc
->bo
,
1280 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1281 panfrost_bo_access_for_stage(stage
));
1283 panfrost_batch_add_bo(batch
, view
->bo
,
1284 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1285 panfrost_bo_access_for_stage(stage
));
1288 postfix
->textures
= T
.gpu
;
1290 uint64_t trampolines
[PIPE_MAX_SHADER_SAMPLER_VIEWS
];
1292 for (int i
= 0; i
< ctx
->sampler_view_count
[stage
]; ++i
) {
1293 struct panfrost_sampler_view
*view
= ctx
->sampler_views
[stage
][i
];
1295 panfrost_update_sampler_view(view
, &ctx
->base
);
1297 trampolines
[i
] = panfrost_get_tex_desc(batch
, stage
, view
);
1300 postfix
->textures
= panfrost_pool_upload_aligned(&batch
->pool
,
1303 ctx
->sampler_view_count
[stage
],
1309 panfrost_emit_sampler_descriptors(struct panfrost_batch
*batch
,
1310 enum pipe_shader_type stage
,
1311 struct mali_vertex_tiler_postfix
*postfix
)
1313 struct panfrost_context
*ctx
= batch
->ctx
;
1315 if (!ctx
->sampler_count
[stage
])
1318 size_t desc_size
= MALI_BIFROST_SAMPLER_LENGTH
;
1319 assert(MALI_BIFROST_SAMPLER_LENGTH
== MALI_MIDGARD_SAMPLER_LENGTH
);
1321 size_t sz
= desc_size
* ctx
->sampler_count
[stage
];
1322 struct panfrost_transfer T
= panfrost_pool_alloc_aligned(&batch
->pool
, sz
, desc_size
);
1323 struct mali_midgard_sampler_packed
*out
= (struct mali_midgard_sampler_packed
*) T
.cpu
;
1325 for (unsigned i
= 0; i
< ctx
->sampler_count
[stage
]; ++i
)
1326 out
[i
] = ctx
->samplers
[stage
][i
]->hw
;
1328 postfix
->sampler_descriptor
= T
.gpu
;
1332 panfrost_emit_vertex_data(struct panfrost_batch
*batch
,
1333 struct mali_vertex_tiler_postfix
*vertex_postfix
)
1335 struct panfrost_context
*ctx
= batch
->ctx
;
1336 struct panfrost_vertex_state
*so
= ctx
->vertex
;
1337 struct panfrost_shader_state
*vs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_VERTEX
);
1339 unsigned instance_shift
= vertex_postfix
->instance_shift
;
1340 unsigned instance_odd
= vertex_postfix
->instance_odd
;
1342 /* Worst case: everything is NPOT, which is only possible if instancing
1343 * is enabled. Otherwise single record is gauranteed */
1344 bool could_npot
= instance_shift
|| instance_odd
;
1346 struct panfrost_transfer S
= panfrost_pool_alloc_aligned(&batch
->pool
,
1347 MALI_ATTRIBUTE_BUFFER_LENGTH
* vs
->attribute_count
*
1348 (could_npot
? 2 : 1),
1349 MALI_ATTRIBUTE_BUFFER_LENGTH
* 2);
1351 struct panfrost_transfer T
= panfrost_pool_alloc_aligned(&batch
->pool
,
1352 MALI_ATTRIBUTE_LENGTH
* vs
->attribute_count
,
1353 MALI_ATTRIBUTE_LENGTH
);
1355 struct mali_attribute_buffer_packed
*bufs
=
1356 (struct mali_attribute_buffer_packed
*) S
.cpu
;
1358 struct mali_attribute_packed
*out
=
1359 (struct mali_attribute_packed
*) T
.cpu
;
1361 unsigned attrib_to_buffer
[PIPE_MAX_ATTRIBS
] = { 0 };
1364 for (unsigned i
= 0; i
< so
->num_elements
; ++i
) {
1365 /* We map buffers 1:1 with the attributes, which
1366 * means duplicating some vertex buffers (who cares? aside from
1367 * maybe some caching implications but I somehow doubt that
1370 struct pipe_vertex_element
*elem
= &so
->pipe
[i
];
1371 unsigned vbi
= elem
->vertex_buffer_index
;
1372 attrib_to_buffer
[i
] = k
;
1374 if (!(ctx
->vb_mask
& (1 << vbi
)))
1377 struct pipe_vertex_buffer
*buf
= &ctx
->vertex_buffers
[vbi
];
1378 struct panfrost_resource
*rsrc
;
1380 rsrc
= pan_resource(buf
->buffer
.resource
);
1384 /* Add a dependency of the batch on the vertex buffer */
1385 panfrost_batch_add_bo(batch
, rsrc
->bo
,
1386 PAN_BO_ACCESS_SHARED
|
1387 PAN_BO_ACCESS_READ
|
1388 PAN_BO_ACCESS_VERTEX_TILER
);
1390 /* Mask off lower bits, see offset fixup below */
1391 mali_ptr raw_addr
= rsrc
->bo
->gpu
+ buf
->buffer_offset
;
1392 mali_ptr addr
= raw_addr
& ~63;
1394 /* Since we advanced the base pointer, we shrink the buffer
1395 * size, but add the offset we subtracted */
1396 unsigned size
= rsrc
->base
.width0
+ (raw_addr
- addr
)
1397 - buf
->buffer_offset
;
1399 /* When there is a divisor, the hardware-level divisor is
1400 * the product of the instance divisor and the padded count */
1401 unsigned divisor
= elem
->instance_divisor
;
1402 unsigned hw_divisor
= ctx
->padded_count
* divisor
;
1403 unsigned stride
= buf
->stride
;
1405 /* If there's a divisor(=1) but no instancing, we want every
1406 * attribute to be the same */
1408 if (divisor
&& ctx
->instance_count
== 1)
1411 if (!divisor
|| ctx
->instance_count
<= 1) {
1412 pan_pack(bufs
+ k
, ATTRIBUTE_BUFFER
, cfg
) {
1413 if (ctx
->instance_count
> 1)
1414 cfg
.type
= MALI_ATTRIBUTE_TYPE_1D_MODULUS
;
1417 cfg
.stride
= stride
;
1419 cfg
.divisor_r
= instance_shift
;
1420 cfg
.divisor_p
= instance_odd
;
1422 } else if (util_is_power_of_two_or_zero(hw_divisor
)) {
1423 pan_pack(bufs
+ k
, ATTRIBUTE_BUFFER
, cfg
) {
1424 cfg
.type
= MALI_ATTRIBUTE_TYPE_1D_POT_DIVISOR
;
1426 cfg
.stride
= stride
;
1428 cfg
.divisor_r
= __builtin_ctz(hw_divisor
);
1432 unsigned shift
= 0, extra_flags
= 0;
1434 unsigned magic_divisor
=
1435 panfrost_compute_magic_divisor(hw_divisor
, &shift
, &extra_flags
);
1437 pan_pack(bufs
+ k
, ATTRIBUTE_BUFFER
, cfg
) {
1438 cfg
.type
= MALI_ATTRIBUTE_TYPE_1D_NPOT_DIVISOR
;
1440 cfg
.stride
= stride
;
1443 cfg
.divisor_r
= shift
;
1444 cfg
.divisor_e
= extra_flags
;
1447 pan_pack(bufs
+ k
+ 1, ATTRIBUTE_BUFFER_CONTINUATION_NPOT
, cfg
) {
1448 cfg
.divisor_numerator
= magic_divisor
;
1449 cfg
.divisor
= divisor
;
1458 /* Add special gl_VertexID/gl_InstanceID buffers */
1460 if (unlikely(vs
->attribute_count
>= PAN_VERTEX_ID
)) {
1461 panfrost_vertex_id(ctx
->padded_count
, &bufs
[k
], ctx
->instance_count
> 1);
1463 pan_pack(out
+ PAN_VERTEX_ID
, ATTRIBUTE
, cfg
) {
1464 cfg
.buffer_index
= k
++;
1465 cfg
.format
= so
->formats
[PAN_VERTEX_ID
];
1468 panfrost_instance_id(ctx
->padded_count
, &bufs
[k
], ctx
->instance_count
> 1);
1470 pan_pack(out
+ PAN_INSTANCE_ID
, ATTRIBUTE
, cfg
) {
1471 cfg
.buffer_index
= k
++;
1472 cfg
.format
= so
->formats
[PAN_INSTANCE_ID
];
1476 /* Attribute addresses require 64-byte alignment, so let:
1478 * base' = base & ~63 = base - (base & 63)
1479 * offset' = offset + (base & 63)
1481 * Since base' + offset' = base + offset, these are equivalent
1482 * addressing modes and now base is 64 aligned.
1485 unsigned start
= vertex_postfix
->offset_start
;
1487 for (unsigned i
= 0; i
< so
->num_elements
; ++i
) {
1488 unsigned vbi
= so
->pipe
[i
].vertex_buffer_index
;
1489 struct pipe_vertex_buffer
*buf
= &ctx
->vertex_buffers
[vbi
];
1491 /* Adjust by the masked off bits of the offset. Make sure we
1492 * read src_offset from so->hw (which is not GPU visible)
1493 * rather than target (which is) due to caching effects */
1495 unsigned src_offset
= so
->pipe
[i
].src_offset
;
1497 /* BOs aligned to 4k so guaranteed aligned to 64 */
1498 src_offset
+= (buf
->buffer_offset
& 63);
1500 /* Also, somewhat obscurely per-instance data needs to be
1501 * offset in response to a delayed start in an indexed draw */
1503 if (so
->pipe
[i
].instance_divisor
&& ctx
->instance_count
> 1 && start
)
1504 src_offset
-= buf
->stride
* start
;
1506 pan_pack(out
+ i
, ATTRIBUTE
, cfg
) {
1507 cfg
.buffer_index
= attrib_to_buffer
[i
];
1508 cfg
.format
= so
->formats
[i
];
1509 cfg
.offset
= src_offset
;
1513 vertex_postfix
->attributes
= S
.gpu
;
1514 vertex_postfix
->attribute_meta
= T
.gpu
;
1518 panfrost_emit_varyings(struct panfrost_batch
*batch
,
1519 struct mali_attribute_buffer_packed
*slot
,
1520 unsigned stride
, unsigned count
)
1522 unsigned size
= stride
* count
;
1523 mali_ptr ptr
= panfrost_pool_alloc_aligned(&batch
->invisible_pool
, size
, 64).gpu
;
1525 pan_pack(slot
, ATTRIBUTE_BUFFER
, cfg
) {
1526 cfg
.stride
= stride
;
1535 panfrost_streamout_offset(unsigned stride
, unsigned offset
,
1536 struct pipe_stream_output_target
*target
)
1538 return (target
->buffer_offset
+ (offset
* stride
* 4)) & 63;
1542 panfrost_emit_streamout(struct panfrost_batch
*batch
,
1543 struct mali_attribute_buffer_packed
*slot
,
1544 unsigned stride_words
, unsigned offset
, unsigned count
,
1545 struct pipe_stream_output_target
*target
)
1547 unsigned stride
= stride_words
* 4;
1548 unsigned max_size
= target
->buffer_size
;
1549 unsigned expected_size
= stride
* count
;
1551 /* Grab the BO and bind it to the batch */
1552 struct panfrost_bo
*bo
= pan_resource(target
->buffer
)->bo
;
1554 /* Varyings are WRITE from the perspective of the VERTEX but READ from
1555 * the perspective of the TILER and FRAGMENT.
1557 panfrost_batch_add_bo(batch
, bo
,
1558 PAN_BO_ACCESS_SHARED
|
1560 PAN_BO_ACCESS_VERTEX_TILER
|
1561 PAN_BO_ACCESS_FRAGMENT
);
1563 /* We will have an offset applied to get alignment */
1564 mali_ptr addr
= bo
->gpu
+ target
->buffer_offset
+ (offset
* stride
);
1566 pan_pack(slot
, ATTRIBUTE_BUFFER
, cfg
) {
1567 cfg
.pointer
= (addr
& ~63);
1568 cfg
.stride
= stride
;
1569 cfg
.size
= MIN2(max_size
, expected_size
) + (addr
& 63);
1574 has_point_coord(unsigned mask
, gl_varying_slot loc
)
1576 if ((loc
>= VARYING_SLOT_TEX0
) && (loc
<= VARYING_SLOT_TEX7
))
1577 return (mask
& (1 << (loc
- VARYING_SLOT_TEX0
)));
1578 else if (loc
== VARYING_SLOT_PNTC
)
1579 return (mask
& (1 << 8));
1584 /* Helpers for manipulating stream out information so we can pack varyings
1585 * accordingly. Compute the src_offset for a given captured varying */
1587 static struct pipe_stream_output
*
1588 pan_get_so(struct pipe_stream_output_info
*info
, gl_varying_slot loc
)
1590 for (unsigned i
= 0; i
< info
->num_outputs
; ++i
) {
1591 if (info
->output
[i
].register_index
== loc
)
1592 return &info
->output
[i
];
1595 unreachable("Varying not captured");
1599 pan_varying_size(enum mali_format fmt
)
1601 unsigned type
= MALI_EXTRACT_TYPE(fmt
);
1602 unsigned chan
= MALI_EXTRACT_CHANNELS(fmt
);
1603 unsigned bits
= MALI_EXTRACT_BITS(fmt
);
1606 if (bits
== MALI_CHANNEL_FLOAT
) {
1608 bool fp16
= (type
== MALI_FORMAT_SINT
);
1609 assert(fp16
|| (type
== MALI_FORMAT_UNORM
));
1613 assert(type
>= MALI_FORMAT_SNORM
&& type
<= MALI_FORMAT_SINT
);
1624 /* Indices for named (non-XFB) varyings that are present. These are packed
1625 * tightly so they correspond to a bitfield present (P) indexed by (1 <<
1626 * PAN_VARY_*). This has the nice property that you can lookup the buffer index
1627 * of a given special field given a shift S by:
1629 * idx = popcount(P & ((1 << S) - 1))
1631 * That is... look at all of the varyings that come earlier and count them, the
1632 * count is the new index since plus one. Likewise, the total number of special
1633 * buffers required is simply popcount(P)
1636 enum pan_special_varying
{
1637 PAN_VARY_GENERAL
= 0,
1638 PAN_VARY_POSITION
= 1,
1640 PAN_VARY_PNTCOORD
= 3,
1642 PAN_VARY_FRAGCOORD
= 5,
1648 /* Given a varying, figure out which index it correpsonds to */
1650 static inline unsigned
1651 pan_varying_index(unsigned present
, enum pan_special_varying v
)
1653 unsigned mask
= (1 << v
) - 1;
1654 return util_bitcount(present
& mask
);
1657 /* Get the base offset for XFB buffers, which by convention come after
1658 * everything else. Wrapper function for semantic reasons; by construction this
1659 * is just popcount. */
1661 static inline unsigned
1662 pan_xfb_base(unsigned present
)
1664 return util_bitcount(present
);
1667 /* Computes the present mask for varyings so we can start emitting varying records */
1669 static inline unsigned
1670 pan_varying_present(
1671 struct panfrost_shader_state
*vs
,
1672 struct panfrost_shader_state
*fs
,
1675 /* At the moment we always emit general and position buffers. Not
1676 * strictly necessary but usually harmless */
1678 unsigned present
= (1 << PAN_VARY_GENERAL
) | (1 << PAN_VARY_POSITION
);
1680 /* Enable special buffers by the shader info */
1682 if (vs
->writes_point_size
)
1683 present
|= (1 << PAN_VARY_PSIZ
);
1685 if (fs
->reads_point_coord
)
1686 present
|= (1 << PAN_VARY_PNTCOORD
);
1689 present
|= (1 << PAN_VARY_FACE
);
1691 if (fs
->reads_frag_coord
&& !(quirks
& IS_BIFROST
))
1692 present
|= (1 << PAN_VARY_FRAGCOORD
);
1694 /* Also, if we have a point sprite, we need a point coord buffer */
1696 for (unsigned i
= 0; i
< fs
->varying_count
; i
++) {
1697 gl_varying_slot loc
= fs
->varyings_loc
[i
];
1699 if (has_point_coord(fs
->point_sprite_mask
, loc
))
1700 present
|= (1 << PAN_VARY_PNTCOORD
);
1706 /* Emitters for varying records */
1709 pan_emit_vary(struct mali_attribute_packed
*out
,
1710 unsigned present
, enum pan_special_varying buf
,
1711 unsigned quirks
, enum mali_format format
,
1714 unsigned nr_channels
= MALI_EXTRACT_CHANNELS(format
);
1715 unsigned swizzle
= quirks
& HAS_SWIZZLES
?
1716 panfrost_get_default_swizzle(nr_channels
) :
1717 panfrost_bifrost_swizzle(nr_channels
);
1719 pan_pack(out
, ATTRIBUTE
, cfg
) {
1720 cfg
.buffer_index
= pan_varying_index(present
, buf
);
1721 cfg
.unknown
= quirks
& IS_BIFROST
? 0x0 : 0x1;
1722 cfg
.format
= (format
<< 12) | swizzle
;
1723 cfg
.offset
= offset
;
1727 /* General varying that is unused */
1730 pan_emit_vary_only(struct mali_attribute_packed
*out
,
1731 unsigned present
, unsigned quirks
)
1733 pan_emit_vary(out
, present
, 0, quirks
, MALI_VARYING_DISCARD
, 0);
1736 /* Special records */
1738 static const enum mali_format pan_varying_formats
[PAN_VARY_MAX
] = {
1739 [PAN_VARY_POSITION
] = MALI_VARYING_POS
,
1740 [PAN_VARY_PSIZ
] = MALI_R16F
,
1741 [PAN_VARY_PNTCOORD
] = MALI_R16F
,
1742 [PAN_VARY_FACE
] = MALI_R32I
,
1743 [PAN_VARY_FRAGCOORD
] = MALI_RGBA32F
1747 pan_emit_vary_special(struct mali_attribute_packed
*out
,
1748 unsigned present
, enum pan_special_varying buf
,
1751 assert(buf
< PAN_VARY_MAX
);
1752 pan_emit_vary(out
, present
, buf
, quirks
, pan_varying_formats
[buf
], 0);
1755 static enum mali_format
1756 pan_xfb_format(enum mali_format format
, unsigned nr
)
1758 if (MALI_EXTRACT_BITS(format
) == MALI_CHANNEL_FLOAT
)
1759 return MALI_R32F
| MALI_NR_CHANNELS(nr
);
1761 return MALI_EXTRACT_TYPE(format
) | MALI_NR_CHANNELS(nr
) | MALI_CHANNEL_32
;
1764 /* Transform feedback records. Note struct pipe_stream_output is (if packed as
1765 * a bitfield) 32-bit, smaller than a 64-bit pointer, so may as well pass by
1769 pan_emit_vary_xfb(struct mali_attribute_packed
*out
,
1772 unsigned *streamout_offsets
,
1774 enum mali_format format
,
1775 struct pipe_stream_output o
)
1777 unsigned swizzle
= quirks
& HAS_SWIZZLES
?
1778 panfrost_get_default_swizzle(o
.num_components
) :
1779 panfrost_bifrost_swizzle(o
.num_components
);
1781 pan_pack(out
, ATTRIBUTE
, cfg
) {
1782 /* XFB buffers come after everything else */
1783 cfg
.buffer_index
= pan_xfb_base(present
) + o
.output_buffer
;
1784 cfg
.unknown
= quirks
& IS_BIFROST
? 0x0 : 0x1;
1786 /* Override number of channels and precision to highp */
1787 cfg
.format
= (pan_xfb_format(format
, o
.num_components
) << 12) | swizzle
;
1789 /* Apply given offsets together */
1790 cfg
.offset
= (o
.dst_offset
* 4) /* dwords */
1791 + streamout_offsets
[o
.output_buffer
];
1795 /* Determine if we should capture a varying for XFB. This requires actually
1796 * having a buffer for it. If we don't capture it, we'll fallback to a general
1797 * varying path (linked or unlinked, possibly discarding the write) */
1800 panfrost_xfb_captured(struct panfrost_shader_state
*xfb
,
1801 unsigned loc
, unsigned max_xfb
)
1803 if (!(xfb
->so_mask
& (1ll << loc
)))
1806 struct pipe_stream_output
*o
= pan_get_so(&xfb
->stream_output
, loc
);
1807 return o
->output_buffer
< max_xfb
;
1811 pan_emit_general_varying(struct mali_attribute_packed
*out
,
1812 struct panfrost_shader_state
*other
,
1813 struct panfrost_shader_state
*xfb
,
1814 gl_varying_slot loc
,
1815 enum mali_format format
,
1818 unsigned *gen_offsets
,
1819 enum mali_format
*gen_formats
,
1820 unsigned *gen_stride
,
1824 /* Check if we're linked */
1825 signed other_idx
= -1;
1827 for (unsigned j
= 0; j
< other
->varying_count
; ++j
) {
1828 if (other
->varyings_loc
[j
] == loc
) {
1834 if (other_idx
< 0) {
1835 pan_emit_vary_only(out
, present
, quirks
);
1839 unsigned offset
= gen_offsets
[other_idx
];
1842 /* We're linked, so allocate a space via a watermark allocation */
1843 enum mali_format alt
= other
->varyings
[other_idx
];
1845 /* Do interpolation at minimum precision */
1846 unsigned size_main
= pan_varying_size(format
);
1847 unsigned size_alt
= pan_varying_size(alt
);
1848 unsigned size
= MIN2(size_main
, size_alt
);
1850 /* If a varying is marked for XFB but not actually captured, we
1851 * should match the format to the format that would otherwise
1852 * be used for XFB, since dEQP checks for invariance here. It's
1853 * unclear if this is required by the spec. */
1855 if (xfb
->so_mask
& (1ull << loc
)) {
1856 struct pipe_stream_output
*o
= pan_get_so(&xfb
->stream_output
, loc
);
1857 format
= pan_xfb_format(format
, o
->num_components
);
1858 size
= pan_varying_size(format
);
1859 } else if (size
== size_alt
) {
1863 gen_offsets
[idx
] = *gen_stride
;
1864 gen_formats
[other_idx
] = format
;
1865 offset
= *gen_stride
;
1866 *gen_stride
+= size
;
1869 pan_emit_vary(out
, present
, PAN_VARY_GENERAL
, quirks
, format
, offset
);
1872 /* Higher-level wrapper around all of the above, classifying a varying into one
1873 * of the above types */
1876 panfrost_emit_varying(
1877 struct mali_attribute_packed
*out
,
1878 struct panfrost_shader_state
*stage
,
1879 struct panfrost_shader_state
*other
,
1880 struct panfrost_shader_state
*xfb
,
1883 unsigned *streamout_offsets
,
1885 unsigned *gen_offsets
,
1886 enum mali_format
*gen_formats
,
1887 unsigned *gen_stride
,
1892 gl_varying_slot loc
= stage
->varyings_loc
[idx
];
1893 enum mali_format format
= stage
->varyings
[idx
];
1895 /* Override format to match linkage */
1896 if (!should_alloc
&& gen_formats
[idx
])
1897 format
= gen_formats
[idx
];
1899 if (has_point_coord(stage
->point_sprite_mask
, loc
)) {
1900 pan_emit_vary_special(out
, present
, PAN_VARY_PNTCOORD
, quirks
);
1901 } else if (panfrost_xfb_captured(xfb
, loc
, max_xfb
)) {
1902 struct pipe_stream_output
*o
= pan_get_so(&xfb
->stream_output
, loc
);
1903 pan_emit_vary_xfb(out
, present
, max_xfb
, streamout_offsets
, quirks
, format
, *o
);
1904 } else if (loc
== VARYING_SLOT_POS
) {
1906 pan_emit_vary_special(out
, present
, PAN_VARY_FRAGCOORD
, quirks
);
1908 pan_emit_vary_special(out
, present
, PAN_VARY_POSITION
, quirks
);
1909 } else if (loc
== VARYING_SLOT_PSIZ
) {
1910 pan_emit_vary_special(out
, present
, PAN_VARY_PSIZ
, quirks
);
1911 } else if (loc
== VARYING_SLOT_PNTC
) {
1912 pan_emit_vary_special(out
, present
, PAN_VARY_PNTCOORD
, quirks
);
1913 } else if (loc
== VARYING_SLOT_FACE
) {
1914 pan_emit_vary_special(out
, present
, PAN_VARY_FACE
, quirks
);
1916 pan_emit_general_varying(out
, other
, xfb
, loc
, format
, present
,
1917 quirks
, gen_offsets
, gen_formats
, gen_stride
,
1923 pan_emit_special_input(struct mali_attribute_buffer_packed
*out
,
1925 enum pan_special_varying v
,
1928 if (present
& (1 << v
)) {
1929 unsigned idx
= pan_varying_index(present
, v
);
1931 pan_pack(out
+ idx
, ATTRIBUTE_BUFFER
, cfg
) {
1932 cfg
.special
= special
;
1939 panfrost_emit_varying_descriptor(struct panfrost_batch
*batch
,
1940 unsigned vertex_count
,
1941 struct mali_vertex_tiler_postfix
*vertex_postfix
,
1942 struct mali_vertex_tiler_postfix
*tiler_postfix
,
1943 union midgard_primitive_size
*primitive_size
)
1945 /* Load the shaders */
1946 struct panfrost_context
*ctx
= batch
->ctx
;
1947 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
1948 struct panfrost_shader_state
*vs
, *fs
;
1949 size_t vs_size
, fs_size
;
1951 /* Allocate the varying descriptor */
1953 vs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_VERTEX
);
1954 fs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_FRAGMENT
);
1955 vs_size
= MALI_ATTRIBUTE_LENGTH
* vs
->varying_count
;
1956 fs_size
= MALI_ATTRIBUTE_LENGTH
* fs
->varying_count
;
1958 struct panfrost_transfer trans
= panfrost_pool_alloc_aligned(
1959 &batch
->pool
, vs_size
+ fs_size
, MALI_ATTRIBUTE_LENGTH
);
1961 struct pipe_stream_output_info
*so
= &vs
->stream_output
;
1962 unsigned present
= pan_varying_present(vs
, fs
, dev
->quirks
);
1964 /* Check if this varying is linked by us. This is the case for
1965 * general-purpose, non-captured varyings. If it is, link it. If it's
1966 * not, use the provided stream out information to determine the
1967 * offset, since it was already linked for us. */
1969 unsigned gen_offsets
[32];
1970 enum mali_format gen_formats
[32];
1971 memset(gen_offsets
, 0, sizeof(gen_offsets
));
1972 memset(gen_formats
, 0, sizeof(gen_formats
));
1974 unsigned gen_stride
= 0;
1975 assert(vs
->varying_count
< ARRAY_SIZE(gen_offsets
));
1976 assert(fs
->varying_count
< ARRAY_SIZE(gen_offsets
));
1978 unsigned streamout_offsets
[32];
1980 for (unsigned i
= 0; i
< ctx
->streamout
.num_targets
; ++i
) {
1981 streamout_offsets
[i
] = panfrost_streamout_offset(
1983 ctx
->streamout
.offsets
[i
],
1984 ctx
->streamout
.targets
[i
]);
1987 struct mali_attribute_packed
*ovs
= (struct mali_attribute_packed
*)trans
.cpu
;
1988 struct mali_attribute_packed
*ofs
= ovs
+ vs
->varying_count
;
1990 for (unsigned i
= 0; i
< vs
->varying_count
; i
++) {
1991 panfrost_emit_varying(ovs
+ i
, vs
, fs
, vs
, present
,
1992 ctx
->streamout
.num_targets
, streamout_offsets
,
1994 gen_offsets
, gen_formats
, &gen_stride
, i
, true, false);
1997 for (unsigned i
= 0; i
< fs
->varying_count
; i
++) {
1998 panfrost_emit_varying(ofs
+ i
, fs
, vs
, vs
, present
,
1999 ctx
->streamout
.num_targets
, streamout_offsets
,
2001 gen_offsets
, gen_formats
, &gen_stride
, i
, false, true);
2004 unsigned xfb_base
= pan_xfb_base(present
);
2005 struct panfrost_transfer T
= panfrost_pool_alloc_aligned(&batch
->pool
,
2006 MALI_ATTRIBUTE_BUFFER_LENGTH
* (xfb_base
+ ctx
->streamout
.num_targets
),
2007 MALI_ATTRIBUTE_BUFFER_LENGTH
* 2);
2008 struct mali_attribute_buffer_packed
*varyings
=
2009 (struct mali_attribute_buffer_packed
*) T
.cpu
;
2011 /* Emit the stream out buffers */
2013 unsigned out_count
= u_stream_outputs_for_vertices(ctx
->active_prim
,
2016 for (unsigned i
= 0; i
< ctx
->streamout
.num_targets
; ++i
) {
2017 panfrost_emit_streamout(batch
, &varyings
[xfb_base
+ i
],
2019 ctx
->streamout
.offsets
[i
],
2021 ctx
->streamout
.targets
[i
]);
2024 panfrost_emit_varyings(batch
,
2025 &varyings
[pan_varying_index(present
, PAN_VARY_GENERAL
)],
2026 gen_stride
, vertex_count
);
2028 /* fp32 vec4 gl_Position */
2029 tiler_postfix
->position_varying
= panfrost_emit_varyings(batch
,
2030 &varyings
[pan_varying_index(present
, PAN_VARY_POSITION
)],
2031 sizeof(float) * 4, vertex_count
);
2033 if (present
& (1 << PAN_VARY_PSIZ
)) {
2034 primitive_size
->pointer
= panfrost_emit_varyings(batch
,
2035 &varyings
[pan_varying_index(present
, PAN_VARY_PSIZ
)],
2039 pan_emit_special_input(varyings
, present
, PAN_VARY_PNTCOORD
, MALI_ATTRIBUTE_SPECIAL_POINT_COORD
);
2040 pan_emit_special_input(varyings
, present
, PAN_VARY_FACE
, MALI_ATTRIBUTE_SPECIAL_FRONT_FACING
);
2041 pan_emit_special_input(varyings
, present
, PAN_VARY_FRAGCOORD
, MALI_ATTRIBUTE_SPECIAL_FRAG_COORD
);
2043 vertex_postfix
->varyings
= T
.gpu
;
2044 tiler_postfix
->varyings
= T
.gpu
;
2046 vertex_postfix
->varying_meta
= trans
.gpu
;
2047 tiler_postfix
->varying_meta
= trans
.gpu
+ vs_size
;
2051 panfrost_emit_vertex_tiler_jobs(struct panfrost_batch
*batch
,
2052 struct mali_vertex_tiler_prefix
*vertex_prefix
,
2053 struct mali_vertex_tiler_postfix
*vertex_postfix
,
2054 struct mali_vertex_tiler_prefix
*tiler_prefix
,
2055 struct mali_vertex_tiler_postfix
*tiler_postfix
,
2056 union midgard_primitive_size
*primitive_size
)
2058 struct panfrost_context
*ctx
= batch
->ctx
;
2059 struct panfrost_device
*device
= pan_device(ctx
->base
.screen
);
2060 bool wallpapering
= ctx
->wallpaper_batch
&& batch
->scoreboard
.tiler_dep
;
2061 struct bifrost_payload_vertex bifrost_vertex
= {0,};
2062 struct bifrost_payload_tiler bifrost_tiler
= {0,};
2063 struct midgard_payload_vertex_tiler midgard_vertex
= {0,};
2064 struct midgard_payload_vertex_tiler midgard_tiler
= {0,};
2066 size_t vp_size
, tp_size
;
2068 if (device
->quirks
& IS_BIFROST
) {
2069 bifrost_vertex
.prefix
= *vertex_prefix
;
2070 bifrost_vertex
.postfix
= *vertex_postfix
;
2071 vp
= &bifrost_vertex
;
2072 vp_size
= sizeof(bifrost_vertex
);
2074 bifrost_tiler
.prefix
= *tiler_prefix
;
2075 bifrost_tiler
.tiler
.primitive_size
= *primitive_size
;
2076 bifrost_tiler
.tiler
.tiler_meta
= panfrost_batch_get_tiler_meta(batch
, ~0);
2077 bifrost_tiler
.postfix
= *tiler_postfix
;
2078 tp
= &bifrost_tiler
;
2079 tp_size
= sizeof(bifrost_tiler
);
2081 midgard_vertex
.prefix
= *vertex_prefix
;
2082 midgard_vertex
.postfix
= *vertex_postfix
;
2083 vp
= &midgard_vertex
;
2084 vp_size
= sizeof(midgard_vertex
);
2086 midgard_tiler
.prefix
= *tiler_prefix
;
2087 midgard_tiler
.postfix
= *tiler_postfix
;
2088 midgard_tiler
.primitive_size
= *primitive_size
;
2089 tp
= &midgard_tiler
;
2090 tp_size
= sizeof(midgard_tiler
);
2094 /* Inject in reverse order, with "predicted" job indices.
2095 * THIS IS A HACK XXX */
2096 panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_TILER
, false,
2097 batch
->scoreboard
.job_index
+ 2, tp
, tp_size
, true);
2098 panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_VERTEX
, false, 0,
2103 /* If rasterizer discard is enable, only submit the vertex */
2105 unsigned vertex
= panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_VERTEX
, false, 0,
2106 vp
, vp_size
, false);
2108 if (ctx
->rasterizer
->base
.rasterizer_discard
)
2111 panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_TILER
, false, vertex
, tp
, tp_size
,
2115 /* TODO: stop hardcoding this */
2117 panfrost_emit_sample_locations(struct panfrost_batch
*batch
)
2119 uint16_t locations
[] = {
2170 return panfrost_pool_upload_aligned(&batch
->pool
, locations
, 96 * sizeof(uint16_t), 64);