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(&batch
->pool
, &shared
, sizeof(shared
));
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 out
= panfrost_pool_upload(&batch
->pool
, ibuf8
+ offset
,
227 u_vbuf_get_minmax_index(&ctx
->base
, info
, min_index
, max_index
);
229 if (!info
->has_user_indices
)
230 panfrost_minmax_cache_add(rsrc
->index_cache
,
231 info
->start
, info
->count
,
232 *min_index
, *max_index
);
239 panfrost_vt_set_draw_info(struct panfrost_context
*ctx
,
240 const struct pipe_draw_info
*info
,
241 enum mali_draw_mode draw_mode
,
242 struct mali_vertex_tiler_postfix
*vertex_postfix
,
243 struct mali_vertex_tiler_prefix
*tiler_prefix
,
244 struct mali_vertex_tiler_postfix
*tiler_postfix
,
245 unsigned *vertex_count
,
246 unsigned *padded_count
)
248 tiler_prefix
->draw_mode
= draw_mode
;
250 unsigned draw_flags
= 0;
252 if (panfrost_writes_point_size(ctx
))
253 draw_flags
|= MALI_DRAW_VARYING_SIZE
;
255 if (info
->primitive_restart
)
256 draw_flags
|= MALI_DRAW_PRIMITIVE_RESTART_FIXED_INDEX
;
258 /* These doesn't make much sense */
260 draw_flags
|= 0x3000;
262 if (info
->index_size
) {
263 unsigned min_index
= 0, max_index
= 0;
265 tiler_prefix
->indices
= panfrost_get_index_buffer_bounded(ctx
,
270 /* Use the corresponding values */
271 *vertex_count
= max_index
- min_index
+ 1;
272 tiler_postfix
->offset_start
= vertex_postfix
->offset_start
= min_index
+ info
->index_bias
;
273 tiler_prefix
->offset_bias_correction
= -min_index
;
274 tiler_prefix
->index_count
= MALI_POSITIVE(info
->count
);
275 draw_flags
|= panfrost_translate_index_size(info
->index_size
);
277 tiler_prefix
->indices
= 0;
278 *vertex_count
= ctx
->vertex_count
;
279 tiler_postfix
->offset_start
= vertex_postfix
->offset_start
= info
->start
;
280 tiler_prefix
->offset_bias_correction
= 0;
281 tiler_prefix
->index_count
= MALI_POSITIVE(ctx
->vertex_count
);
284 tiler_prefix
->unknown_draw
= draw_flags
;
286 /* Encode the padded vertex count */
288 if (info
->instance_count
> 1) {
289 *padded_count
= panfrost_padded_vertex_count(*vertex_count
);
291 unsigned shift
= __builtin_ctz(ctx
->padded_count
);
292 unsigned k
= ctx
->padded_count
>> (shift
+ 1);
294 tiler_postfix
->instance_shift
= vertex_postfix
->instance_shift
= shift
;
295 tiler_postfix
->instance_odd
= vertex_postfix
->instance_odd
= k
;
297 *padded_count
= *vertex_count
;
299 /* Reset instancing state */
300 tiler_postfix
->instance_shift
= vertex_postfix
->instance_shift
= 0;
301 tiler_postfix
->instance_odd
= vertex_postfix
->instance_odd
= 0;
306 panfrost_shader_meta_init(struct panfrost_context
*ctx
,
307 enum pipe_shader_type st
,
308 struct mali_shader_meta
*meta
)
310 const struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
311 struct panfrost_shader_state
*ss
= panfrost_get_shader_state(ctx
, st
);
313 memset(meta
, 0, sizeof(*meta
));
314 meta
->shader
= (ss
->bo
? ss
->bo
->gpu
: 0) | ss
->first_tag
;
315 meta
->attribute_count
= ss
->attribute_count
;
316 meta
->varying_count
= ss
->varying_count
;
317 meta
->texture_count
= ctx
->sampler_view_count
[st
];
318 meta
->sampler_count
= ctx
->sampler_count
[st
];
320 if (dev
->quirks
& IS_BIFROST
) {
321 if (st
== PIPE_SHADER_VERTEX
)
322 meta
->bifrost1
.unk1
= 0x800000;
324 /* First clause ATEST |= 0x4000000.
325 * Less than 32 regs |= 0x200 */
326 meta
->bifrost1
.unk1
= 0x950020;
329 meta
->bifrost1
.uniform_buffer_count
= panfrost_ubo_count(ctx
, st
);
330 if (st
== PIPE_SHADER_VERTEX
)
331 meta
->bifrost2
.preload_regs
= 0xC0;
333 meta
->bifrost2
.preload_regs
= 0x1;
334 SET_BIT(meta
->bifrost2
.preload_regs
, 0x10, ss
->reads_frag_coord
);
337 meta
->bifrost2
.uniform_count
= MIN2(ss
->uniform_count
,
340 meta
->midgard1
.uniform_count
= MIN2(ss
->uniform_count
,
342 meta
->midgard1
.work_count
= ss
->work_reg_count
;
344 /* TODO: This is not conformant on ES3 */
345 meta
->midgard1
.flags_hi
= MALI_SUPPRESS_INF_NAN
;
347 meta
->midgard1
.flags_lo
= 0x20;
348 meta
->midgard1
.uniform_buffer_count
= panfrost_ubo_count(ctx
, st
);
350 SET_BIT(meta
->midgard1
.flags_lo
, MALI_WRITES_GLOBAL
, ss
->writes_global
);
355 translate_tex_wrap(enum pipe_tex_wrap w
)
358 case PIPE_TEX_WRAP_REPEAT
: return MALI_WRAP_MODE_REPEAT
;
359 case PIPE_TEX_WRAP_CLAMP
: return MALI_WRAP_MODE_CLAMP
;
360 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
: return MALI_WRAP_MODE_CLAMP_TO_EDGE
;
361 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
: return MALI_WRAP_MODE_CLAMP_TO_BORDER
;
362 case PIPE_TEX_WRAP_MIRROR_REPEAT
: return MALI_WRAP_MODE_MIRRORED_REPEAT
;
363 case PIPE_TEX_WRAP_MIRROR_CLAMP
: return MALI_WRAP_MODE_MIRRORED_CLAMP
;
364 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE
: return MALI_WRAP_MODE_MIRRORED_CLAMP_TO_EDGE
;
365 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER
: return MALI_WRAP_MODE_MIRRORED_CLAMP_TO_BORDER
;
366 default: unreachable("Invalid wrap");
370 /* The hardware compares in the wrong order order, so we have to flip before
371 * encoding. Yes, really. */
373 static enum mali_func
374 panfrost_sampler_compare_func(const struct pipe_sampler_state
*cso
)
376 if (!cso
->compare_mode
)
377 return MALI_FUNC_NEVER
;
379 enum mali_func f
= panfrost_translate_compare_func(cso
->compare_func
);
380 return panfrost_flip_compare_func(f
);
383 static enum mali_mipmap_mode
384 pan_pipe_to_mipmode(enum pipe_tex_mipfilter f
)
387 case PIPE_TEX_MIPFILTER_NEAREST
: return MALI_MIPMAP_MODE_NEAREST
;
388 case PIPE_TEX_MIPFILTER_LINEAR
: return MALI_MIPMAP_MODE_TRILINEAR
;
389 case PIPE_TEX_MIPFILTER_NONE
: return MALI_MIPMAP_MODE_NONE
;
390 default: unreachable("Invalid");
394 void panfrost_sampler_desc_init(const struct pipe_sampler_state
*cso
,
395 struct mali_midgard_sampler_packed
*hw
)
397 pan_pack(hw
, MIDGARD_SAMPLER
, cfg
) {
398 cfg
.magnify_nearest
= cso
->mag_img_filter
== PIPE_TEX_FILTER_NEAREST
;
399 cfg
.minify_nearest
= cso
->min_img_filter
== PIPE_TEX_FILTER_NEAREST
;
400 cfg
.mipmap_mode
= (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_LINEAR
) ?
401 MALI_MIPMAP_MODE_TRILINEAR
: MALI_MIPMAP_MODE_NEAREST
;
402 cfg
.normalized_coordinates
= cso
->normalized_coords
;
404 cfg
.lod_bias
= FIXED_16(cso
->lod_bias
, true);
406 cfg
.minimum_lod
= FIXED_16(cso
->min_lod
, false);
408 /* If necessary, we disable mipmapping in the sampler descriptor by
409 * clamping the LOD as tight as possible (from 0 to epsilon,
410 * essentially -- remember these are fixed point numbers, so
413 cfg
.maximum_lod
= (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_NONE
) ?
414 cfg
.minimum_lod
+ 1 :
415 FIXED_16(cso
->max_lod
, false);
417 cfg
.wrap_mode_s
= translate_tex_wrap(cso
->wrap_s
);
418 cfg
.wrap_mode_t
= translate_tex_wrap(cso
->wrap_t
);
419 cfg
.wrap_mode_r
= translate_tex_wrap(cso
->wrap_r
);
421 cfg
.compare_function
= panfrost_sampler_compare_func(cso
);
422 cfg
.seamless_cube_map
= cso
->seamless_cube_map
;
424 cfg
.border_color_r
= cso
->border_color
.f
[0];
425 cfg
.border_color_g
= cso
->border_color
.f
[1];
426 cfg
.border_color_b
= cso
->border_color
.f
[2];
427 cfg
.border_color_a
= cso
->border_color
.f
[3];
431 void panfrost_sampler_desc_init_bifrost(const struct pipe_sampler_state
*cso
,
432 struct mali_bifrost_sampler_packed
*hw
)
434 pan_pack(hw
, BIFROST_SAMPLER
, cfg
) {
435 cfg
.magnify_linear
= cso
->mag_img_filter
== PIPE_TEX_FILTER_LINEAR
;
436 cfg
.minify_linear
= cso
->min_img_filter
== PIPE_TEX_FILTER_LINEAR
;
437 cfg
.mipmap_mode
= pan_pipe_to_mipmode(cso
->min_mip_filter
);
438 cfg
.normalized_coordinates
= cso
->normalized_coords
;
440 cfg
.lod_bias
= FIXED_16(cso
->lod_bias
, true);
441 cfg
.minimum_lod
= FIXED_16(cso
->min_lod
, false);
442 cfg
.maximum_lod
= FIXED_16(cso
->max_lod
, false);
444 cfg
.wrap_mode_s
= translate_tex_wrap(cso
->wrap_s
);
445 cfg
.wrap_mode_t
= translate_tex_wrap(cso
->wrap_t
);
446 cfg
.wrap_mode_r
= translate_tex_wrap(cso
->wrap_r
);
448 cfg
.compare_function
= panfrost_sampler_compare_func(cso
);
449 cfg
.seamless_cube_map
= cso
->seamless_cube_map
;
454 panfrost_frag_meta_rasterizer_update(struct panfrost_context
*ctx
,
455 struct mali_shader_meta
*fragmeta
)
457 struct pipe_rasterizer_state
*rast
= &ctx
->rasterizer
->base
;
459 bool msaa
= rast
->multisample
;
461 /* TODO: Sample size */
462 SET_BIT(fragmeta
->unknown2_3
, MALI_HAS_MSAA
, msaa
);
463 SET_BIT(fragmeta
->unknown2_4
, MALI_NO_MSAA
, !msaa
);
465 struct panfrost_shader_state
*fs
;
466 fs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_FRAGMENT
);
468 /* EXT_shader_framebuffer_fetch requires the shader to be run
469 * per-sample when outputs are read. */
470 bool per_sample
= ctx
->min_samples
> 1 || fs
->outputs_read
;
471 SET_BIT(fragmeta
->unknown2_3
, MALI_PER_SAMPLE
, msaa
&& per_sample
);
473 fragmeta
->depth_units
= rast
->offset_units
* 2.0f
;
474 fragmeta
->depth_factor
= rast
->offset_scale
;
476 /* XXX: Which bit is which? Does this maybe allow offseting not-tri? */
478 SET_BIT(fragmeta
->unknown2_4
, MALI_DEPTH_RANGE_A
, rast
->offset_tri
);
479 SET_BIT(fragmeta
->unknown2_4
, MALI_DEPTH_RANGE_B
, rast
->offset_tri
);
481 SET_BIT(fragmeta
->unknown2_3
, MALI_DEPTH_CLIP_NEAR
, rast
->depth_clip_near
);
482 SET_BIT(fragmeta
->unknown2_3
, MALI_DEPTH_CLIP_FAR
, rast
->depth_clip_far
);
486 panfrost_frag_meta_zsa_update(struct panfrost_context
*ctx
,
487 struct mali_shader_meta
*fragmeta
)
489 const struct panfrost_zsa_state
*so
= ctx
->depth_stencil
;
491 SET_BIT(fragmeta
->unknown2_4
, MALI_STENCIL_TEST
,
492 so
->base
.stencil
[0].enabled
);
494 fragmeta
->stencil_mask_front
= so
->stencil_mask_front
;
495 fragmeta
->stencil_mask_back
= so
->stencil_mask_back
;
497 /* Bottom bits for stencil ref, exactly one word */
498 fragmeta
->stencil_front
.opaque
[0] = so
->stencil_front
.opaque
[0] | ctx
->stencil_ref
.ref_value
[0];
500 /* If back-stencil is not enabled, use the front values */
502 if (so
->base
.stencil
[1].enabled
)
503 fragmeta
->stencil_back
.opaque
[0] = so
->stencil_back
.opaque
[0] | ctx
->stencil_ref
.ref_value
[1];
505 fragmeta
->stencil_back
= fragmeta
->stencil_front
;
507 SET_BIT(fragmeta
->unknown2_3
, MALI_DEPTH_WRITEMASK
,
508 so
->base
.depth
.writemask
);
510 fragmeta
->unknown2_3
&= ~MALI_DEPTH_FUNC_MASK
;
511 fragmeta
->unknown2_3
|= MALI_DEPTH_FUNC(panfrost_translate_compare_func(
512 so
->base
.depth
.enabled
? so
->base
.depth
.func
: PIPE_FUNC_ALWAYS
));
516 panfrost_fs_required(
517 struct panfrost_shader_state
*fs
,
518 struct panfrost_blend_final
*blend
,
521 /* If we generally have side effects */
525 /* If colour is written we need to execute */
526 for (unsigned i
= 0; i
< rt_count
; ++i
) {
527 if (!blend
[i
].no_colour
)
531 /* If depth is written and not implied we need to execute.
532 * TODO: Predicate on Z/S writes being enabled */
533 return (fs
->writes_depth
|| fs
->writes_stencil
);
537 panfrost_frag_meta_blend_update(struct panfrost_context
*ctx
,
538 struct mali_shader_meta
*fragmeta
,
541 struct panfrost_batch
*batch
= panfrost_get_batch_for_fbo(ctx
);
542 const struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
543 struct panfrost_shader_state
*fs
;
544 fs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_FRAGMENT
);
546 SET_BIT(fragmeta
->unknown2_4
, MALI_NO_DITHER
,
547 (dev
->quirks
& MIDGARD_SFBD
) && ctx
->blend
&&
548 !ctx
->blend
->base
.dither
);
550 SET_BIT(fragmeta
->unknown2_4
, MALI_ALPHA_TO_COVERAGE
,
551 ctx
->blend
->base
.alpha_to_coverage
);
553 /* Get blending setup */
554 unsigned rt_count
= MAX2(ctx
->pipe_framebuffer
.nr_cbufs
, 1);
556 struct panfrost_blend_final blend
[PIPE_MAX_COLOR_BUFS
];
558 for (unsigned c
= 0; c
< rt_count
; ++c
)
559 blend
[c
] = panfrost_get_blend_for_context(ctx
, c
);
561 /* Disable shader execution if we can */
562 if (dev
->quirks
& MIDGARD_SHADERLESS
563 && !panfrost_fs_required(fs
, blend
, rt_count
)) {
564 fragmeta
->shader
= 0;
565 fragmeta
->attribute_count
= 0;
566 fragmeta
->varying_count
= 0;
567 fragmeta
->texture_count
= 0;
568 fragmeta
->sampler_count
= 0;
570 /* This feature is not known to work on Bifrost */
571 fragmeta
->midgard1
.work_count
= 1;
572 fragmeta
->midgard1
.uniform_count
= 0;
573 fragmeta
->midgard1
.uniform_buffer_count
= 0;
576 /* If there is a blend shader, work registers are shared. We impose 8
577 * work registers as a limit for blend shaders. Should be lower XXX */
579 if (!(dev
->quirks
& IS_BIFROST
)) {
580 for (unsigned c
= 0; c
< rt_count
; ++c
) {
581 if (blend
[c
].is_shader
) {
582 fragmeta
->midgard1
.work_count
=
583 MAX2(fragmeta
->midgard1
.work_count
, 8);
588 /* Even on MFBD, the shader descriptor gets blend shaders. It's *also*
589 * copied to the blend_meta appended (by convention), but this is the
590 * field actually read by the hardware. (Or maybe both are read...?).
591 * Specify the last RTi with a blend shader. */
593 fragmeta
->blend
.shader
= 0;
595 for (signed rt
= (rt_count
- 1); rt
>= 0; --rt
) {
596 if (!blend
[rt
].is_shader
)
599 fragmeta
->blend
.shader
= blend
[rt
].shader
.gpu
|
600 blend
[rt
].shader
.first_tag
;
604 if (dev
->quirks
& MIDGARD_SFBD
) {
605 /* When only a single render target platform is used, the blend
606 * information is inside the shader meta itself. We additionally
607 * need to signal CAN_DISCARD for nontrivial blend modes (so
608 * we're able to read back the destination buffer) */
610 SET_BIT(fragmeta
->unknown2_3
, MALI_HAS_BLEND_SHADER
,
613 if (!blend
[0].is_shader
) {
614 fragmeta
->blend
.equation
= *blend
[0].equation
.equation
;
615 fragmeta
->blend
.constant
= blend
[0].equation
.constant
;
618 SET_BIT(fragmeta
->unknown2_3
, MALI_CAN_DISCARD
,
619 !blend
[0].no_blending
|| fs
->can_discard
);
621 batch
->draws
|= PIPE_CLEAR_COLOR0
;
625 if (dev
->quirks
& IS_BIFROST
) {
626 bool no_blend
= true;
628 for (unsigned i
= 0; i
< rt_count
; ++i
)
629 no_blend
&= (blend
[i
].no_blending
| blend
[i
].no_colour
);
631 SET_BIT(fragmeta
->bifrost1
.unk1
, MALI_BIFROST_EARLY_Z
,
632 !fs
->can_discard
&& !fs
->writes_depth
&& no_blend
);
635 /* Additional blend descriptor tacked on for jobs using MFBD */
637 for (unsigned i
= 0; i
< rt_count
; ++i
) {
640 if (ctx
->pipe_framebuffer
.nr_cbufs
> i
&& !blend
[i
].no_colour
) {
642 batch
->draws
|= (PIPE_CLEAR_COLOR0
<< i
);
644 bool is_srgb
= (ctx
->pipe_framebuffer
.nr_cbufs
> i
) &&
645 (ctx
->pipe_framebuffer
.cbufs
[i
]) &&
646 util_format_is_srgb(ctx
->pipe_framebuffer
.cbufs
[i
]->format
);
648 SET_BIT(flags
, MALI_BLEND_MRT_SHADER
, blend
[i
].is_shader
);
649 SET_BIT(flags
, MALI_BLEND_LOAD_TIB
, !blend
[i
].no_blending
);
650 SET_BIT(flags
, MALI_BLEND_SRGB
, is_srgb
);
651 SET_BIT(flags
, MALI_BLEND_NO_DITHER
, !ctx
->blend
->base
.dither
);
654 if (dev
->quirks
& IS_BIFROST
) {
655 struct bifrost_blend_rt
*brts
= rts
;
657 brts
[i
].flags
= flags
;
659 if (blend
[i
].is_shader
) {
660 /* The blend shader's address needs to be at
661 * the same top 32 bit as the fragment shader.
662 * TODO: Ensure that's always the case.
664 assert((blend
[i
].shader
.gpu
& (0xffffffffull
<< 32)) ==
665 (fs
->bo
->gpu
& (0xffffffffull
<< 32)));
666 brts
[i
].shader
= blend
[i
].shader
.gpu
;
668 } else if (ctx
->pipe_framebuffer
.nr_cbufs
> i
) {
669 enum pipe_format format
= ctx
->pipe_framebuffer
.cbufs
[i
]->format
;
670 const struct util_format_description
*format_desc
;
671 format_desc
= util_format_description(format
);
673 brts
[i
].equation
= *blend
[i
].equation
.equation
;
675 /* TODO: this is a bit more complicated */
676 brts
[i
].constant
= blend
[i
].equation
.constant
;
678 brts
[i
].format
= panfrost_format_to_bifrost_blend(format_desc
);
680 /* 0x19 disables blending and forces REPLACE
681 * mode (equivalent to rgb_mode = alpha_mode =
682 * x122, colour mask = 0xF). 0x1a allows
684 brts
[i
].unk2
= blend
[i
].no_blending
? 0x19 : 0x1a;
686 brts
[i
].shader_type
= fs
->blend_types
[i
];
688 /* Dummy attachment for depth-only */
690 brts
[i
].shader_type
= fs
->blend_types
[i
];
693 struct midgard_blend_rt
*mrts
= rts
;
694 mrts
[i
].flags
= flags
;
696 if (blend
[i
].is_shader
) {
697 mrts
[i
].blend
.shader
= blend
[i
].shader
.gpu
| blend
[i
].shader
.first_tag
;
699 mrts
[i
].blend
.equation
= *blend
[i
].equation
.equation
;
700 mrts
[i
].blend
.constant
= blend
[i
].equation
.constant
;
707 panfrost_frag_shader_meta_init(struct panfrost_context
*ctx
,
708 struct mali_shader_meta
*fragmeta
,
711 const struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
712 struct panfrost_shader_state
*fs
;
714 fs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_FRAGMENT
);
716 bool msaa
= ctx
->rasterizer
->base
.multisample
;
717 fragmeta
->coverage_mask
= msaa
? ctx
->sample_mask
: ~0;
719 fragmeta
->unknown2_3
= MALI_DEPTH_FUNC(MALI_FUNC_ALWAYS
) | 0x10;
720 fragmeta
->unknown2_4
= 0x4e0;
722 /* unknown2_4 has 0x10 bit set on T6XX and T720. We don't know why this
723 * is required (independent of 32-bit/64-bit descriptors), or why it's
724 * not used on later GPU revisions. Otherwise, all shader jobs fault on
725 * these earlier chips (perhaps this is a chicken bit of some kind).
726 * More investigation is needed. */
728 SET_BIT(fragmeta
->unknown2_4
, 0x10, dev
->quirks
& MIDGARD_SFBD
);
730 if (dev
->quirks
& IS_BIFROST
) {
733 /* Depending on whether it's legal to in the given shader, we try to
734 * enable early-z testing. TODO: respect e-z force */
736 SET_BIT(fragmeta
->midgard1
.flags_lo
, MALI_EARLY_Z
,
737 !fs
->can_discard
&& !fs
->writes_global
&&
738 !fs
->writes_depth
&& !fs
->writes_stencil
&&
739 !ctx
->blend
->base
.alpha_to_coverage
);
741 /* Add the writes Z/S flags if needed. */
742 SET_BIT(fragmeta
->midgard1
.flags_lo
, MALI_WRITES_Z
, fs
->writes_depth
);
743 SET_BIT(fragmeta
->midgard1
.flags_hi
, MALI_WRITES_S
, fs
->writes_stencil
);
745 /* Any time texturing is used, derivatives are implicitly calculated,
746 * so we need to enable helper invocations */
748 SET_BIT(fragmeta
->midgard1
.flags_lo
, MALI_HELPER_INVOCATIONS
,
749 fs
->helper_invocations
);
751 /* If discard is enabled, which bit we set to convey this
752 * depends on if depth/stencil is used for the draw or not.
753 * Just one of depth OR stencil is enough to trigger this. */
755 const struct pipe_depth_stencil_alpha_state
*zsa
= &ctx
->depth_stencil
->base
;
757 fs
->writes_depth
|| fs
->writes_stencil
||
758 (zsa
->depth
.enabled
&& zsa
->depth
.func
!= PIPE_FUNC_ALWAYS
) ||
759 zsa
->stencil
[0].enabled
;
761 SET_BIT(fragmeta
->midgard1
.flags_lo
, MALI_READS_TILEBUFFER
,
762 fs
->outputs_read
|| (!zs_enabled
&& fs
->can_discard
));
763 SET_BIT(fragmeta
->midgard1
.flags_lo
, MALI_READS_ZS
, zs_enabled
&& fs
->can_discard
);
766 panfrost_frag_meta_rasterizer_update(ctx
, fragmeta
);
767 panfrost_frag_meta_zsa_update(ctx
, fragmeta
);
768 panfrost_frag_meta_blend_update(ctx
, fragmeta
, rts
);
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 panfrost_shader_meta_init(ctx
, st
, &meta
);
788 /* Add the shader BO to the batch. */
789 panfrost_batch_add_bo(batch
, ss
->bo
,
790 PAN_BO_ACCESS_PRIVATE
|
792 panfrost_bo_access_for_stage(st
));
796 if (st
== PIPE_SHADER_FRAGMENT
) {
797 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
798 unsigned rt_count
= MAX2(ctx
->pipe_framebuffer
.nr_cbufs
, 1);
799 size_t desc_size
= sizeof(meta
);
801 struct panfrost_transfer xfer
;
804 if (dev
->quirks
& MIDGARD_SFBD
)
806 else if (dev
->quirks
& IS_BIFROST
)
807 rt_size
= sizeof(struct bifrost_blend_rt
);
809 rt_size
= sizeof(struct midgard_blend_rt
);
811 desc_size
+= rt_size
* rt_count
;
814 rts
= rzalloc_size(ctx
, rt_size
* rt_count
);
816 panfrost_frag_shader_meta_init(ctx
, &meta
, rts
);
818 xfer
= panfrost_pool_alloc(&batch
->pool
, desc_size
);
820 memcpy(xfer
.cpu
, &meta
, sizeof(meta
));
821 memcpy(xfer
.cpu
+ sizeof(meta
), rts
, rt_size
* rt_count
);
826 shader_ptr
= xfer
.gpu
;
828 shader_ptr
= panfrost_pool_upload(&batch
->pool
, &meta
,
832 postfix
->shader
= shader_ptr
;
836 panfrost_emit_viewport(struct panfrost_batch
*batch
,
837 struct mali_vertex_tiler_postfix
*tiler_postfix
)
839 struct panfrost_context
*ctx
= batch
->ctx
;
840 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
841 const struct pipe_scissor_state
*ss
= &ctx
->scissor
;
842 const struct pipe_rasterizer_state
*rast
= &ctx
->rasterizer
->base
;
843 const struct pipe_framebuffer_state
*fb
= &ctx
->pipe_framebuffer
;
845 /* Derive min/max from translate/scale. Note since |x| >= 0 by
846 * definition, we have that -|x| <= |x| hence translate - |scale| <=
847 * translate + |scale|, so the ordering is correct here. */
848 float vp_minx
= (int) (vp
->translate
[0] - fabsf(vp
->scale
[0]));
849 float vp_maxx
= (int) (vp
->translate
[0] + fabsf(vp
->scale
[0]));
850 float vp_miny
= (int) (vp
->translate
[1] - fabsf(vp
->scale
[1]));
851 float vp_maxy
= (int) (vp
->translate
[1] + fabsf(vp
->scale
[1]));
852 float minz
= (vp
->translate
[2] - fabsf(vp
->scale
[2]));
853 float maxz
= (vp
->translate
[2] + fabsf(vp
->scale
[2]));
855 /* Scissor to the intersection of viewport and to the scissor, clamped
856 * to the framebuffer */
858 unsigned minx
= MIN2(fb
->width
, vp_minx
);
859 unsigned maxx
= MIN2(fb
->width
, vp_maxx
);
860 unsigned miny
= MIN2(fb
->height
, vp_miny
);
861 unsigned maxy
= MIN2(fb
->height
, vp_maxy
);
863 if (ss
&& rast
->scissor
) {
864 minx
= MAX2(ss
->minx
, minx
);
865 miny
= MAX2(ss
->miny
, miny
);
866 maxx
= MIN2(ss
->maxx
, maxx
);
867 maxy
= MIN2(ss
->maxy
, maxy
);
870 struct panfrost_transfer T
= panfrost_pool_alloc(&batch
->pool
, MALI_VIEWPORT_LENGTH
);
872 pan_pack(T
.cpu
, VIEWPORT
, cfg
) {
873 cfg
.scissor_minimum_x
= minx
;
874 cfg
.scissor_minimum_y
= miny
;
875 cfg
.scissor_maximum_x
= maxx
- 1;
876 cfg
.scissor_maximum_y
= maxy
- 1;
878 cfg
.minimum_z
= rast
->depth_clip_near
? minz
: -INFINITY
;
879 cfg
.maximum_z
= rast
->depth_clip_far
? maxz
: INFINITY
;
882 tiler_postfix
->viewport
= T
.gpu
;
883 panfrost_batch_union_scissor(batch
, minx
, miny
, maxx
, maxy
);
887 panfrost_map_constant_buffer_gpu(struct panfrost_batch
*batch
,
888 enum pipe_shader_type st
,
889 struct panfrost_constant_buffer
*buf
,
892 struct pipe_constant_buffer
*cb
= &buf
->cb
[index
];
893 struct panfrost_resource
*rsrc
= pan_resource(cb
->buffer
);
896 panfrost_batch_add_bo(batch
, rsrc
->bo
,
897 PAN_BO_ACCESS_SHARED
|
899 panfrost_bo_access_for_stage(st
));
901 /* Alignment gauranteed by
902 * PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT */
903 return rsrc
->bo
->gpu
+ cb
->buffer_offset
;
904 } else if (cb
->user_buffer
) {
905 return panfrost_pool_upload(&batch
->pool
,
910 unreachable("No constant buffer");
914 struct sysval_uniform
{
924 panfrost_upload_viewport_scale_sysval(struct panfrost_batch
*batch
,
925 struct sysval_uniform
*uniform
)
927 struct panfrost_context
*ctx
= batch
->ctx
;
928 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
930 uniform
->f
[0] = vp
->scale
[0];
931 uniform
->f
[1] = vp
->scale
[1];
932 uniform
->f
[2] = vp
->scale
[2];
936 panfrost_upload_viewport_offset_sysval(struct panfrost_batch
*batch
,
937 struct sysval_uniform
*uniform
)
939 struct panfrost_context
*ctx
= batch
->ctx
;
940 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
942 uniform
->f
[0] = vp
->translate
[0];
943 uniform
->f
[1] = vp
->translate
[1];
944 uniform
->f
[2] = vp
->translate
[2];
947 static void panfrost_upload_txs_sysval(struct panfrost_batch
*batch
,
948 enum pipe_shader_type st
,
949 unsigned int sysvalid
,
950 struct sysval_uniform
*uniform
)
952 struct panfrost_context
*ctx
= batch
->ctx
;
953 unsigned texidx
= PAN_SYSVAL_ID_TO_TXS_TEX_IDX(sysvalid
);
954 unsigned dim
= PAN_SYSVAL_ID_TO_TXS_DIM(sysvalid
);
955 bool is_array
= PAN_SYSVAL_ID_TO_TXS_IS_ARRAY(sysvalid
);
956 struct pipe_sampler_view
*tex
= &ctx
->sampler_views
[st
][texidx
]->base
;
959 uniform
->i
[0] = u_minify(tex
->texture
->width0
, tex
->u
.tex
.first_level
);
962 uniform
->i
[1] = u_minify(tex
->texture
->height0
,
963 tex
->u
.tex
.first_level
);
966 uniform
->i
[2] = u_minify(tex
->texture
->depth0
,
967 tex
->u
.tex
.first_level
);
970 uniform
->i
[dim
] = tex
->texture
->array_size
;
974 panfrost_upload_ssbo_sysval(struct panfrost_batch
*batch
,
975 enum pipe_shader_type st
,
977 struct sysval_uniform
*uniform
)
979 struct panfrost_context
*ctx
= batch
->ctx
;
981 assert(ctx
->ssbo_mask
[st
] & (1 << ssbo_id
));
982 struct pipe_shader_buffer sb
= ctx
->ssbo
[st
][ssbo_id
];
984 /* Compute address */
985 struct panfrost_bo
*bo
= pan_resource(sb
.buffer
)->bo
;
987 panfrost_batch_add_bo(batch
, bo
,
988 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_RW
|
989 panfrost_bo_access_for_stage(st
));
991 /* Upload address and size as sysval */
992 uniform
->du
[0] = bo
->gpu
+ sb
.buffer_offset
;
993 uniform
->u
[2] = sb
.buffer_size
;
997 panfrost_upload_sampler_sysval(struct panfrost_batch
*batch
,
998 enum pipe_shader_type st
,
1000 struct sysval_uniform
*uniform
)
1002 struct panfrost_context
*ctx
= batch
->ctx
;
1003 struct pipe_sampler_state
*sampl
= &ctx
->samplers
[st
][samp_idx
]->base
;
1005 uniform
->f
[0] = sampl
->min_lod
;
1006 uniform
->f
[1] = sampl
->max_lod
;
1007 uniform
->f
[2] = sampl
->lod_bias
;
1009 /* Even without any errata, Midgard represents "no mipmapping" as
1010 * fixing the LOD with the clamps; keep behaviour consistent. c.f.
1011 * panfrost_create_sampler_state which also explains our choice of
1012 * epsilon value (again to keep behaviour consistent) */
1014 if (sampl
->min_mip_filter
== PIPE_TEX_MIPFILTER_NONE
)
1015 uniform
->f
[1] = uniform
->f
[0] + (1.0/256.0);
1019 panfrost_upload_num_work_groups_sysval(struct panfrost_batch
*batch
,
1020 struct sysval_uniform
*uniform
)
1022 struct panfrost_context
*ctx
= batch
->ctx
;
1024 uniform
->u
[0] = ctx
->compute_grid
->grid
[0];
1025 uniform
->u
[1] = ctx
->compute_grid
->grid
[1];
1026 uniform
->u
[2] = ctx
->compute_grid
->grid
[2];
1030 panfrost_upload_sysvals(struct panfrost_batch
*batch
, void *buf
,
1031 struct panfrost_shader_state
*ss
,
1032 enum pipe_shader_type st
)
1034 struct sysval_uniform
*uniforms
= (void *)buf
;
1036 for (unsigned i
= 0; i
< ss
->sysval_count
; ++i
) {
1037 int sysval
= ss
->sysval
[i
];
1039 switch (PAN_SYSVAL_TYPE(sysval
)) {
1040 case PAN_SYSVAL_VIEWPORT_SCALE
:
1041 panfrost_upload_viewport_scale_sysval(batch
,
1044 case PAN_SYSVAL_VIEWPORT_OFFSET
:
1045 panfrost_upload_viewport_offset_sysval(batch
,
1048 case PAN_SYSVAL_TEXTURE_SIZE
:
1049 panfrost_upload_txs_sysval(batch
, st
,
1050 PAN_SYSVAL_ID(sysval
),
1053 case PAN_SYSVAL_SSBO
:
1054 panfrost_upload_ssbo_sysval(batch
, st
,
1055 PAN_SYSVAL_ID(sysval
),
1058 case PAN_SYSVAL_NUM_WORK_GROUPS
:
1059 panfrost_upload_num_work_groups_sysval(batch
,
1062 case PAN_SYSVAL_SAMPLER
:
1063 panfrost_upload_sampler_sysval(batch
, st
,
1064 PAN_SYSVAL_ID(sysval
),
1074 panfrost_map_constant_buffer_cpu(struct panfrost_constant_buffer
*buf
,
1077 struct pipe_constant_buffer
*cb
= &buf
->cb
[index
];
1078 struct panfrost_resource
*rsrc
= pan_resource(cb
->buffer
);
1081 return rsrc
->bo
->cpu
;
1082 else if (cb
->user_buffer
)
1083 return cb
->user_buffer
;
1085 unreachable("No constant buffer");
1089 panfrost_emit_const_buf(struct panfrost_batch
*batch
,
1090 enum pipe_shader_type stage
,
1091 struct mali_vertex_tiler_postfix
*postfix
)
1093 struct panfrost_context
*ctx
= batch
->ctx
;
1094 struct panfrost_shader_variants
*all
= ctx
->shader
[stage
];
1099 struct panfrost_constant_buffer
*buf
= &ctx
->constant_buffer
[stage
];
1101 struct panfrost_shader_state
*ss
= &all
->variants
[all
->active_variant
];
1103 /* Uniforms are implicitly UBO #0 */
1104 bool has_uniforms
= buf
->enabled_mask
& (1 << 0);
1106 /* Allocate room for the sysval and the uniforms */
1107 size_t sys_size
= sizeof(float) * 4 * ss
->sysval_count
;
1108 size_t uniform_size
= has_uniforms
? (buf
->cb
[0].buffer_size
) : 0;
1109 size_t size
= sys_size
+ uniform_size
;
1110 struct panfrost_transfer transfer
= panfrost_pool_alloc(&batch
->pool
,
1113 /* Upload sysvals requested by the shader */
1114 panfrost_upload_sysvals(batch
, transfer
.cpu
, ss
, stage
);
1116 /* Upload uniforms */
1117 if (has_uniforms
&& uniform_size
) {
1118 const void *cpu
= panfrost_map_constant_buffer_cpu(buf
, 0);
1119 memcpy(transfer
.cpu
+ sys_size
, cpu
, uniform_size
);
1122 /* Next up, attach UBOs. UBO #0 is the uniforms we just
1125 unsigned ubo_count
= panfrost_ubo_count(ctx
, stage
);
1126 assert(ubo_count
>= 1);
1128 size_t sz
= MALI_UNIFORM_BUFFER_LENGTH
* ubo_count
;
1129 struct panfrost_transfer ubos
= panfrost_pool_alloc(&batch
->pool
, sz
);
1130 uint64_t *ubo_ptr
= (uint64_t *) ubos
.cpu
;
1132 /* Upload uniforms as a UBO */
1134 if (ss
->uniform_count
) {
1135 pan_pack(ubo_ptr
, UNIFORM_BUFFER
, cfg
) {
1136 cfg
.entries
= ss
->uniform_count
;
1137 cfg
.pointer
= transfer
.gpu
;
1143 /* The rest are honest-to-goodness UBOs */
1145 for (unsigned ubo
= 1; ubo
< ubo_count
; ++ubo
) {
1146 size_t usz
= buf
->cb
[ubo
].buffer_size
;
1147 bool enabled
= buf
->enabled_mask
& (1 << ubo
);
1148 bool empty
= usz
== 0;
1150 if (!enabled
|| empty
) {
1155 pan_pack(ubo_ptr
+ ubo
, UNIFORM_BUFFER
, cfg
) {
1156 cfg
.entries
= DIV_ROUND_UP(usz
, 16);
1157 cfg
.pointer
= panfrost_map_constant_buffer_gpu(batch
,
1162 postfix
->uniforms
= transfer
.gpu
;
1163 postfix
->uniform_buffers
= ubos
.gpu
;
1165 buf
->dirty_mask
= 0;
1169 panfrost_emit_shared_memory(struct panfrost_batch
*batch
,
1170 const struct pipe_grid_info
*info
,
1171 struct midgard_payload_vertex_tiler
*vtp
)
1173 struct panfrost_context
*ctx
= batch
->ctx
;
1174 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
1175 struct panfrost_shader_variants
*all
= ctx
->shader
[PIPE_SHADER_COMPUTE
];
1176 struct panfrost_shader_state
*ss
= &all
->variants
[all
->active_variant
];
1177 unsigned single_size
= util_next_power_of_two(MAX2(ss
->shared_size
,
1180 unsigned log2_instances
=
1181 util_logbase2_ceil(info
->grid
[0]) +
1182 util_logbase2_ceil(info
->grid
[1]) +
1183 util_logbase2_ceil(info
->grid
[2]);
1185 unsigned shared_size
= single_size
* (1 << log2_instances
) * dev
->core_count
;
1186 struct panfrost_bo
*bo
= panfrost_batch_get_shared_memory(batch
,
1190 struct mali_shared_memory shared
= {
1191 .shared_memory
= bo
->gpu
,
1192 .shared_workgroup_count
= log2_instances
,
1193 .shared_shift
= util_logbase2(single_size
) + 1
1196 vtp
->postfix
.shared_memory
= panfrost_pool_upload(&batch
->pool
, &shared
,
1201 panfrost_get_tex_desc(struct panfrost_batch
*batch
,
1202 enum pipe_shader_type st
,
1203 struct panfrost_sampler_view
*view
)
1206 return (mali_ptr
) 0;
1208 struct pipe_sampler_view
*pview
= &view
->base
;
1209 struct panfrost_resource
*rsrc
= pan_resource(pview
->texture
);
1211 /* Add the BO to the job so it's retained until the job is done. */
1213 panfrost_batch_add_bo(batch
, rsrc
->bo
,
1214 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1215 panfrost_bo_access_for_stage(st
));
1217 panfrost_batch_add_bo(batch
, view
->bo
,
1218 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1219 panfrost_bo_access_for_stage(st
));
1221 return view
->bo
->gpu
;
1225 panfrost_update_sampler_view(struct panfrost_sampler_view
*view
,
1226 struct pipe_context
*pctx
)
1228 struct panfrost_resource
*rsrc
= pan_resource(view
->base
.texture
);
1229 if (view
->texture_bo
!= rsrc
->bo
->gpu
||
1230 view
->modifier
!= rsrc
->modifier
) {
1231 panfrost_bo_unreference(view
->bo
);
1232 panfrost_create_sampler_view_bo(view
, pctx
, &rsrc
->base
);
1237 panfrost_emit_texture_descriptors(struct panfrost_batch
*batch
,
1238 enum pipe_shader_type stage
,
1239 struct mali_vertex_tiler_postfix
*postfix
)
1241 struct panfrost_context
*ctx
= batch
->ctx
;
1242 struct panfrost_device
*device
= pan_device(ctx
->base
.screen
);
1244 if (!ctx
->sampler_view_count
[stage
])
1247 if (device
->quirks
& IS_BIFROST
) {
1248 struct panfrost_transfer T
= panfrost_pool_alloc(&batch
->pool
,
1249 MALI_BIFROST_TEXTURE_LENGTH
*
1250 ctx
->sampler_view_count
[stage
]);
1252 struct mali_bifrost_texture_packed
*out
=
1253 (struct mali_bifrost_texture_packed
*) T
.cpu
;
1255 for (int i
= 0; i
< ctx
->sampler_view_count
[stage
]; ++i
) {
1256 struct panfrost_sampler_view
*view
= ctx
->sampler_views
[stage
][i
];
1257 struct pipe_sampler_view
*pview
= &view
->base
;
1258 struct panfrost_resource
*rsrc
= pan_resource(pview
->texture
);
1260 panfrost_update_sampler_view(view
, &ctx
->base
);
1261 out
[i
] = view
->bifrost_descriptor
;
1263 /* Add the BOs to the job so they are retained until the job is done. */
1265 panfrost_batch_add_bo(batch
, rsrc
->bo
,
1266 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1267 panfrost_bo_access_for_stage(stage
));
1269 panfrost_batch_add_bo(batch
, view
->bo
,
1270 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1271 panfrost_bo_access_for_stage(stage
));
1274 postfix
->textures
= T
.gpu
;
1276 uint64_t trampolines
[PIPE_MAX_SHADER_SAMPLER_VIEWS
];
1278 for (int i
= 0; i
< ctx
->sampler_view_count
[stage
]; ++i
) {
1279 struct panfrost_sampler_view
*view
= ctx
->sampler_views
[stage
][i
];
1281 panfrost_update_sampler_view(view
, &ctx
->base
);
1283 trampolines
[i
] = panfrost_get_tex_desc(batch
, stage
, view
);
1286 postfix
->textures
= panfrost_pool_upload(&batch
->pool
,
1289 ctx
->sampler_view_count
[stage
]);
1294 panfrost_emit_sampler_descriptors(struct panfrost_batch
*batch
,
1295 enum pipe_shader_type stage
,
1296 struct mali_vertex_tiler_postfix
*postfix
)
1298 struct panfrost_context
*ctx
= batch
->ctx
;
1300 if (!ctx
->sampler_count
[stage
])
1303 size_t desc_size
= MALI_BIFROST_SAMPLER_LENGTH
;
1304 assert(MALI_BIFROST_SAMPLER_LENGTH
== MALI_MIDGARD_SAMPLER_LENGTH
);
1306 size_t sz
= desc_size
* ctx
->sampler_count
[stage
];
1307 struct panfrost_transfer T
= panfrost_pool_alloc(&batch
->pool
, sz
);
1308 struct mali_midgard_sampler_packed
*out
= (struct mali_midgard_sampler_packed
*) T
.cpu
;
1310 for (unsigned i
= 0; i
< ctx
->sampler_count
[stage
]; ++i
)
1311 out
[i
] = ctx
->samplers
[stage
][i
]->hw
;
1313 postfix
->sampler_descriptor
= T
.gpu
;
1317 panfrost_emit_vertex_data(struct panfrost_batch
*batch
,
1318 struct mali_vertex_tiler_postfix
*vertex_postfix
)
1320 struct panfrost_context
*ctx
= batch
->ctx
;
1321 struct panfrost_vertex_state
*so
= ctx
->vertex
;
1323 unsigned instance_shift
= vertex_postfix
->instance_shift
;
1324 unsigned instance_odd
= vertex_postfix
->instance_odd
;
1326 /* Worst case: everything is NPOT */
1328 struct panfrost_transfer S
= panfrost_pool_alloc(&batch
->pool
,
1329 MALI_ATTRIBUTE_LENGTH
* PIPE_MAX_ATTRIBS
* 2);
1331 struct panfrost_transfer T
= panfrost_pool_alloc(&batch
->pool
,
1332 MALI_ATTRIBUTE_LENGTH
* (PAN_INSTANCE_ID
+ 1));
1334 struct mali_attribute_buffer_packed
*bufs
=
1335 (struct mali_attribute_buffer_packed
*) S
.cpu
;
1337 struct mali_attribute_packed
*out
=
1338 (struct mali_attribute_packed
*) T
.cpu
;
1340 unsigned attrib_to_buffer
[PIPE_MAX_ATTRIBS
] = { 0 };
1343 for (unsigned i
= 0; i
< so
->num_elements
; ++i
) {
1344 /* We map buffers 1:1 with the attributes, which
1345 * means duplicating some vertex buffers (who cares? aside from
1346 * maybe some caching implications but I somehow doubt that
1349 struct pipe_vertex_element
*elem
= &so
->pipe
[i
];
1350 unsigned vbi
= elem
->vertex_buffer_index
;
1351 attrib_to_buffer
[i
] = k
;
1353 if (!(ctx
->vb_mask
& (1 << vbi
)))
1356 struct pipe_vertex_buffer
*buf
= &ctx
->vertex_buffers
[vbi
];
1357 struct panfrost_resource
*rsrc
;
1359 rsrc
= pan_resource(buf
->buffer
.resource
);
1363 /* Add a dependency of the batch on the vertex buffer */
1364 panfrost_batch_add_bo(batch
, rsrc
->bo
,
1365 PAN_BO_ACCESS_SHARED
|
1366 PAN_BO_ACCESS_READ
|
1367 PAN_BO_ACCESS_VERTEX_TILER
);
1369 /* Mask off lower bits, see offset fixup below */
1370 mali_ptr raw_addr
= rsrc
->bo
->gpu
+ buf
->buffer_offset
;
1371 mali_ptr addr
= raw_addr
& ~63;
1373 /* Since we advanced the base pointer, we shrink the buffer
1374 * size, but add the offset we subtracted */
1375 unsigned size
= rsrc
->base
.width0
+ (raw_addr
- addr
)
1376 - buf
->buffer_offset
;
1378 /* When there is a divisor, the hardware-level divisor is
1379 * the product of the instance divisor and the padded count */
1380 unsigned divisor
= elem
->instance_divisor
;
1381 unsigned hw_divisor
= ctx
->padded_count
* divisor
;
1382 unsigned stride
= buf
->stride
;
1384 /* If there's a divisor(=1) but no instancing, we want every
1385 * attribute to be the same */
1387 if (divisor
&& ctx
->instance_count
== 1)
1390 if (!divisor
|| ctx
->instance_count
<= 1) {
1391 pan_pack(bufs
+ k
, ATTRIBUTE_BUFFER
, cfg
) {
1392 if (ctx
->instance_count
> 1)
1393 cfg
.type
= MALI_ATTRIBUTE_TYPE_1D_MODULUS
;
1396 cfg
.stride
= stride
;
1398 cfg
.divisor_r
= instance_shift
;
1399 cfg
.divisor_p
= instance_odd
;
1401 } else if (util_is_power_of_two_or_zero(hw_divisor
)) {
1402 pan_pack(bufs
+ k
, ATTRIBUTE_BUFFER
, cfg
) {
1403 cfg
.type
= MALI_ATTRIBUTE_TYPE_1D_POT_DIVISOR
;
1405 cfg
.stride
= stride
;
1407 cfg
.divisor_r
= __builtin_ctz(hw_divisor
);
1411 unsigned shift
= 0, extra_flags
= 0;
1413 unsigned magic_divisor
=
1414 panfrost_compute_magic_divisor(hw_divisor
, &shift
, &extra_flags
);
1416 pan_pack(bufs
+ k
, ATTRIBUTE_BUFFER
, cfg
) {
1417 cfg
.type
= MALI_ATTRIBUTE_TYPE_1D_NPOT_DIVISOR
;
1419 cfg
.stride
= stride
;
1422 cfg
.divisor_r
= shift
;
1423 cfg
.divisor_e
= extra_flags
;
1426 pan_pack(bufs
+ k
+ 1, ATTRIBUTE_BUFFER_CONTINUATION_NPOT
, cfg
) {
1427 cfg
.divisor_numerator
= magic_divisor
;
1428 cfg
.divisor
= divisor
;
1437 /* Add special gl_VertexID/gl_InstanceID buffers */
1439 panfrost_vertex_id(ctx
->padded_count
, &bufs
[k
], ctx
->instance_count
> 1);
1441 pan_pack(out
+ PAN_VERTEX_ID
, ATTRIBUTE
, cfg
) {
1442 cfg
.buffer_index
= k
++;
1443 cfg
.format
= so
->formats
[PAN_VERTEX_ID
];
1446 panfrost_instance_id(ctx
->padded_count
, &bufs
[k
], ctx
->instance_count
> 1);
1448 pan_pack(out
+ PAN_INSTANCE_ID
, ATTRIBUTE
, cfg
) {
1449 cfg
.buffer_index
= k
++;
1450 cfg
.format
= so
->formats
[PAN_INSTANCE_ID
];
1453 /* Attribute addresses require 64-byte alignment, so let:
1455 * base' = base & ~63 = base - (base & 63)
1456 * offset' = offset + (base & 63)
1458 * Since base' + offset' = base + offset, these are equivalent
1459 * addressing modes and now base is 64 aligned.
1462 unsigned start
= vertex_postfix
->offset_start
;
1464 for (unsigned i
= 0; i
< so
->num_elements
; ++i
) {
1465 unsigned vbi
= so
->pipe
[i
].vertex_buffer_index
;
1466 struct pipe_vertex_buffer
*buf
= &ctx
->vertex_buffers
[vbi
];
1468 /* Adjust by the masked off bits of the offset. Make sure we
1469 * read src_offset from so->hw (which is not GPU visible)
1470 * rather than target (which is) due to caching effects */
1472 unsigned src_offset
= so
->pipe
[i
].src_offset
;
1474 /* BOs aligned to 4k so guaranteed aligned to 64 */
1475 src_offset
+= (buf
->buffer_offset
& 63);
1477 /* Also, somewhat obscurely per-instance data needs to be
1478 * offset in response to a delayed start in an indexed draw */
1480 if (so
->pipe
[i
].instance_divisor
&& ctx
->instance_count
> 1 && start
)
1481 src_offset
-= buf
->stride
* start
;
1483 pan_pack(out
+ i
, ATTRIBUTE
, cfg
) {
1484 cfg
.buffer_index
= attrib_to_buffer
[i
];
1485 cfg
.format
= so
->formats
[i
];
1486 cfg
.offset
= src_offset
;
1490 vertex_postfix
->attributes
= S
.gpu
;
1491 vertex_postfix
->attribute_meta
= T
.gpu
;
1495 panfrost_emit_varyings(struct panfrost_batch
*batch
,
1496 struct mali_attribute_buffer_packed
*slot
,
1497 unsigned stride
, unsigned count
)
1499 unsigned size
= stride
* count
;
1500 mali_ptr ptr
= panfrost_pool_alloc(&batch
->invisible_pool
, size
).gpu
;
1502 pan_pack(slot
, ATTRIBUTE_BUFFER
, cfg
) {
1503 cfg
.stride
= stride
;
1512 panfrost_streamout_offset(unsigned stride
, unsigned offset
,
1513 struct pipe_stream_output_target
*target
)
1515 return (target
->buffer_offset
+ (offset
* stride
* 4)) & 63;
1519 panfrost_emit_streamout(struct panfrost_batch
*batch
,
1520 struct mali_attribute_buffer_packed
*slot
,
1521 unsigned stride_words
, unsigned offset
, unsigned count
,
1522 struct pipe_stream_output_target
*target
)
1524 unsigned stride
= stride_words
* 4;
1525 unsigned max_size
= target
->buffer_size
;
1526 unsigned expected_size
= stride
* count
;
1528 /* Grab the BO and bind it to the batch */
1529 struct panfrost_bo
*bo
= pan_resource(target
->buffer
)->bo
;
1531 /* Varyings are WRITE from the perspective of the VERTEX but READ from
1532 * the perspective of the TILER and FRAGMENT.
1534 panfrost_batch_add_bo(batch
, bo
,
1535 PAN_BO_ACCESS_SHARED
|
1537 PAN_BO_ACCESS_VERTEX_TILER
|
1538 PAN_BO_ACCESS_FRAGMENT
);
1540 /* We will have an offset applied to get alignment */
1541 mali_ptr addr
= bo
->gpu
+ target
->buffer_offset
+ (offset
* stride
);
1543 pan_pack(slot
, ATTRIBUTE_BUFFER
, cfg
) {
1544 cfg
.pointer
= (addr
& ~63);
1545 cfg
.stride
= stride
;
1546 cfg
.size
= MIN2(max_size
, expected_size
) + (addr
& 63);
1551 has_point_coord(unsigned mask
, gl_varying_slot loc
)
1553 if ((loc
>= VARYING_SLOT_TEX0
) && (loc
<= VARYING_SLOT_TEX7
))
1554 return (mask
& (1 << (loc
- VARYING_SLOT_TEX0
)));
1555 else if (loc
== VARYING_SLOT_PNTC
)
1556 return (mask
& (1 << 8));
1561 /* Helpers for manipulating stream out information so we can pack varyings
1562 * accordingly. Compute the src_offset for a given captured varying */
1564 static struct pipe_stream_output
*
1565 pan_get_so(struct pipe_stream_output_info
*info
, gl_varying_slot loc
)
1567 for (unsigned i
= 0; i
< info
->num_outputs
; ++i
) {
1568 if (info
->output
[i
].register_index
== loc
)
1569 return &info
->output
[i
];
1572 unreachable("Varying not captured");
1576 pan_varying_size(enum mali_format fmt
)
1578 unsigned type
= MALI_EXTRACT_TYPE(fmt
);
1579 unsigned chan
= MALI_EXTRACT_CHANNELS(fmt
);
1580 unsigned bits
= MALI_EXTRACT_BITS(fmt
);
1583 if (bits
== MALI_CHANNEL_FLOAT
) {
1585 bool fp16
= (type
== MALI_FORMAT_SINT
);
1586 assert(fp16
|| (type
== MALI_FORMAT_UNORM
));
1590 assert(type
>= MALI_FORMAT_SNORM
&& type
<= MALI_FORMAT_SINT
);
1601 /* Indices for named (non-XFB) varyings that are present. These are packed
1602 * tightly so they correspond to a bitfield present (P) indexed by (1 <<
1603 * PAN_VARY_*). This has the nice property that you can lookup the buffer index
1604 * of a given special field given a shift S by:
1606 * idx = popcount(P & ((1 << S) - 1))
1608 * That is... look at all of the varyings that come earlier and count them, the
1609 * count is the new index since plus one. Likewise, the total number of special
1610 * buffers required is simply popcount(P)
1613 enum pan_special_varying
{
1614 PAN_VARY_GENERAL
= 0,
1615 PAN_VARY_POSITION
= 1,
1617 PAN_VARY_PNTCOORD
= 3,
1619 PAN_VARY_FRAGCOORD
= 5,
1625 /* Given a varying, figure out which index it correpsonds to */
1627 static inline unsigned
1628 pan_varying_index(unsigned present
, enum pan_special_varying v
)
1630 unsigned mask
= (1 << v
) - 1;
1631 return util_bitcount(present
& mask
);
1634 /* Get the base offset for XFB buffers, which by convention come after
1635 * everything else. Wrapper function for semantic reasons; by construction this
1636 * is just popcount. */
1638 static inline unsigned
1639 pan_xfb_base(unsigned present
)
1641 return util_bitcount(present
);
1644 /* Computes the present mask for varyings so we can start emitting varying records */
1646 static inline unsigned
1647 pan_varying_present(
1648 struct panfrost_shader_state
*vs
,
1649 struct panfrost_shader_state
*fs
,
1652 /* At the moment we always emit general and position buffers. Not
1653 * strictly necessary but usually harmless */
1655 unsigned present
= (1 << PAN_VARY_GENERAL
) | (1 << PAN_VARY_POSITION
);
1657 /* Enable special buffers by the shader info */
1659 if (vs
->writes_point_size
)
1660 present
|= (1 << PAN_VARY_PSIZ
);
1662 if (fs
->reads_point_coord
)
1663 present
|= (1 << PAN_VARY_PNTCOORD
);
1666 present
|= (1 << PAN_VARY_FACE
);
1668 if (fs
->reads_frag_coord
&& !(quirks
& IS_BIFROST
))
1669 present
|= (1 << PAN_VARY_FRAGCOORD
);
1671 /* Also, if we have a point sprite, we need a point coord buffer */
1673 for (unsigned i
= 0; i
< fs
->varying_count
; i
++) {
1674 gl_varying_slot loc
= fs
->varyings_loc
[i
];
1676 if (has_point_coord(fs
->point_sprite_mask
, loc
))
1677 present
|= (1 << PAN_VARY_PNTCOORD
);
1683 /* Emitters for varying records */
1686 pan_emit_vary(struct mali_attribute_packed
*out
,
1687 unsigned present
, enum pan_special_varying buf
,
1688 unsigned quirks
, enum mali_format format
,
1691 unsigned nr_channels
= MALI_EXTRACT_CHANNELS(format
);
1692 unsigned swizzle
= quirks
& HAS_SWIZZLES
?
1693 panfrost_get_default_swizzle(nr_channels
) :
1694 panfrost_bifrost_swizzle(nr_channels
);
1696 pan_pack(out
, ATTRIBUTE
, cfg
) {
1697 cfg
.buffer_index
= pan_varying_index(present
, buf
);
1698 cfg
.unknown
= quirks
& IS_BIFROST
? 0x0 : 0x1;
1699 cfg
.format
= (format
<< 12) | swizzle
;
1700 cfg
.offset
= offset
;
1704 /* General varying that is unused */
1707 pan_emit_vary_only(struct mali_attribute_packed
*out
,
1708 unsigned present
, unsigned quirks
)
1710 pan_emit_vary(out
, present
, 0, quirks
, MALI_VARYING_DISCARD
, 0);
1713 /* Special records */
1715 static const enum mali_format pan_varying_formats
[PAN_VARY_MAX
] = {
1716 [PAN_VARY_POSITION
] = MALI_VARYING_POS
,
1717 [PAN_VARY_PSIZ
] = MALI_R16F
,
1718 [PAN_VARY_PNTCOORD
] = MALI_R16F
,
1719 [PAN_VARY_FACE
] = MALI_R32I
,
1720 [PAN_VARY_FRAGCOORD
] = MALI_RGBA32F
1724 pan_emit_vary_special(struct mali_attribute_packed
*out
,
1725 unsigned present
, enum pan_special_varying buf
,
1728 assert(buf
< PAN_VARY_MAX
);
1729 pan_emit_vary(out
, present
, buf
, quirks
, pan_varying_formats
[buf
], 0);
1732 static enum mali_format
1733 pan_xfb_format(enum mali_format format
, unsigned nr
)
1735 if (MALI_EXTRACT_BITS(format
) == MALI_CHANNEL_FLOAT
)
1736 return MALI_R32F
| MALI_NR_CHANNELS(nr
);
1738 return MALI_EXTRACT_TYPE(format
) | MALI_NR_CHANNELS(nr
) | MALI_CHANNEL_32
;
1741 /* Transform feedback records. Note struct pipe_stream_output is (if packed as
1742 * a bitfield) 32-bit, smaller than a 64-bit pointer, so may as well pass by
1746 pan_emit_vary_xfb(struct mali_attribute_packed
*out
,
1749 unsigned *streamout_offsets
,
1751 enum mali_format format
,
1752 struct pipe_stream_output o
)
1754 unsigned swizzle
= quirks
& HAS_SWIZZLES
?
1755 panfrost_get_default_swizzle(o
.num_components
) :
1756 panfrost_bifrost_swizzle(o
.num_components
);
1758 pan_pack(out
, ATTRIBUTE
, cfg
) {
1759 /* XFB buffers come after everything else */
1760 cfg
.buffer_index
= pan_xfb_base(present
) + o
.output_buffer
;
1761 cfg
.unknown
= quirks
& IS_BIFROST
? 0x0 : 0x1;
1763 /* Override number of channels and precision to highp */
1764 cfg
.format
= (pan_xfb_format(format
, o
.num_components
) << 12) | swizzle
;
1766 /* Apply given offsets together */
1767 cfg
.offset
= (o
.dst_offset
* 4) /* dwords */
1768 + streamout_offsets
[o
.output_buffer
];
1772 /* Determine if we should capture a varying for XFB. This requires actually
1773 * having a buffer for it. If we don't capture it, we'll fallback to a general
1774 * varying path (linked or unlinked, possibly discarding the write) */
1777 panfrost_xfb_captured(struct panfrost_shader_state
*xfb
,
1778 unsigned loc
, unsigned max_xfb
)
1780 if (!(xfb
->so_mask
& (1ll << loc
)))
1783 struct pipe_stream_output
*o
= pan_get_so(&xfb
->stream_output
, loc
);
1784 return o
->output_buffer
< max_xfb
;
1788 pan_emit_general_varying(struct mali_attribute_packed
*out
,
1789 struct panfrost_shader_state
*other
,
1790 struct panfrost_shader_state
*xfb
,
1791 gl_varying_slot loc
,
1792 enum mali_format format
,
1795 unsigned *gen_offsets
,
1796 enum mali_format
*gen_formats
,
1797 unsigned *gen_stride
,
1801 /* Check if we're linked */
1802 signed other_idx
= -1;
1804 for (unsigned j
= 0; j
< other
->varying_count
; ++j
) {
1805 if (other
->varyings_loc
[j
] == loc
) {
1811 if (other_idx
< 0) {
1812 pan_emit_vary_only(out
, present
, quirks
);
1816 unsigned offset
= gen_offsets
[other_idx
];
1819 /* We're linked, so allocate a space via a watermark allocation */
1820 enum mali_format alt
= other
->varyings
[other_idx
];
1822 /* Do interpolation at minimum precision */
1823 unsigned size_main
= pan_varying_size(format
);
1824 unsigned size_alt
= pan_varying_size(alt
);
1825 unsigned size
= MIN2(size_main
, size_alt
);
1827 /* If a varying is marked for XFB but not actually captured, we
1828 * should match the format to the format that would otherwise
1829 * be used for XFB, since dEQP checks for invariance here. It's
1830 * unclear if this is required by the spec. */
1832 if (xfb
->so_mask
& (1ull << loc
)) {
1833 struct pipe_stream_output
*o
= pan_get_so(&xfb
->stream_output
, loc
);
1834 format
= pan_xfb_format(format
, o
->num_components
);
1835 size
= pan_varying_size(format
);
1836 } else if (size
== size_alt
) {
1840 gen_offsets
[idx
] = *gen_stride
;
1841 gen_formats
[other_idx
] = format
;
1842 offset
= *gen_stride
;
1843 *gen_stride
+= size
;
1846 pan_emit_vary(out
, present
, PAN_VARY_GENERAL
, quirks
, format
, offset
);
1849 /* Higher-level wrapper around all of the above, classifying a varying into one
1850 * of the above types */
1853 panfrost_emit_varying(
1854 struct mali_attribute_packed
*out
,
1855 struct panfrost_shader_state
*stage
,
1856 struct panfrost_shader_state
*other
,
1857 struct panfrost_shader_state
*xfb
,
1860 unsigned *streamout_offsets
,
1862 unsigned *gen_offsets
,
1863 enum mali_format
*gen_formats
,
1864 unsigned *gen_stride
,
1869 gl_varying_slot loc
= stage
->varyings_loc
[idx
];
1870 enum mali_format format
= stage
->varyings
[idx
];
1872 /* Override format to match linkage */
1873 if (!should_alloc
&& gen_formats
[idx
])
1874 format
= gen_formats
[idx
];
1876 if (has_point_coord(stage
->point_sprite_mask
, loc
)) {
1877 pan_emit_vary_special(out
, present
, PAN_VARY_PNTCOORD
, quirks
);
1878 } else if (panfrost_xfb_captured(xfb
, loc
, max_xfb
)) {
1879 struct pipe_stream_output
*o
= pan_get_so(&xfb
->stream_output
, loc
);
1880 pan_emit_vary_xfb(out
, present
, max_xfb
, streamout_offsets
, quirks
, format
, *o
);
1881 } else if (loc
== VARYING_SLOT_POS
) {
1883 pan_emit_vary_special(out
, present
, PAN_VARY_FRAGCOORD
, quirks
);
1885 pan_emit_vary_special(out
, present
, PAN_VARY_POSITION
, quirks
);
1886 } else if (loc
== VARYING_SLOT_PSIZ
) {
1887 pan_emit_vary_special(out
, present
, PAN_VARY_PSIZ
, quirks
);
1888 } else if (loc
== VARYING_SLOT_PNTC
) {
1889 pan_emit_vary_special(out
, present
, PAN_VARY_PNTCOORD
, quirks
);
1890 } else if (loc
== VARYING_SLOT_FACE
) {
1891 pan_emit_vary_special(out
, present
, PAN_VARY_FACE
, quirks
);
1893 pan_emit_general_varying(out
, other
, xfb
, loc
, format
, present
,
1894 quirks
, gen_offsets
, gen_formats
, gen_stride
,
1900 pan_emit_special_input(struct mali_attribute_buffer_packed
*out
,
1902 enum pan_special_varying v
,
1905 if (present
& (1 << v
)) {
1906 unsigned idx
= pan_varying_index(present
, v
);
1908 pan_pack(out
+ idx
, ATTRIBUTE_BUFFER
, cfg
) {
1909 cfg
.special
= special
;
1916 panfrost_emit_varying_descriptor(struct panfrost_batch
*batch
,
1917 unsigned vertex_count
,
1918 struct mali_vertex_tiler_postfix
*vertex_postfix
,
1919 struct mali_vertex_tiler_postfix
*tiler_postfix
,
1920 union midgard_primitive_size
*primitive_size
)
1922 /* Load the shaders */
1923 struct panfrost_context
*ctx
= batch
->ctx
;
1924 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
1925 struct panfrost_shader_state
*vs
, *fs
;
1926 size_t vs_size
, fs_size
;
1928 /* Allocate the varying descriptor */
1930 vs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_VERTEX
);
1931 fs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_FRAGMENT
);
1932 vs_size
= MALI_ATTRIBUTE_LENGTH
* vs
->varying_count
;
1933 fs_size
= MALI_ATTRIBUTE_LENGTH
* fs
->varying_count
;
1935 struct panfrost_transfer trans
= panfrost_pool_alloc(&batch
->pool
,
1939 struct pipe_stream_output_info
*so
= &vs
->stream_output
;
1940 unsigned present
= pan_varying_present(vs
, fs
, dev
->quirks
);
1942 /* Check if this varying is linked by us. This is the case for
1943 * general-purpose, non-captured varyings. If it is, link it. If it's
1944 * not, use the provided stream out information to determine the
1945 * offset, since it was already linked for us. */
1947 unsigned gen_offsets
[32];
1948 enum mali_format gen_formats
[32];
1949 memset(gen_offsets
, 0, sizeof(gen_offsets
));
1950 memset(gen_formats
, 0, sizeof(gen_formats
));
1952 unsigned gen_stride
= 0;
1953 assert(vs
->varying_count
< ARRAY_SIZE(gen_offsets
));
1954 assert(fs
->varying_count
< ARRAY_SIZE(gen_offsets
));
1956 unsigned streamout_offsets
[32];
1958 for (unsigned i
= 0; i
< ctx
->streamout
.num_targets
; ++i
) {
1959 streamout_offsets
[i
] = panfrost_streamout_offset(
1961 ctx
->streamout
.offsets
[i
],
1962 ctx
->streamout
.targets
[i
]);
1965 struct mali_attribute_packed
*ovs
= (struct mali_attribute_packed
*)trans
.cpu
;
1966 struct mali_attribute_packed
*ofs
= ovs
+ vs
->varying_count
;
1968 for (unsigned i
= 0; i
< vs
->varying_count
; i
++) {
1969 panfrost_emit_varying(ovs
+ i
, vs
, fs
, vs
, present
,
1970 ctx
->streamout
.num_targets
, streamout_offsets
,
1972 gen_offsets
, gen_formats
, &gen_stride
, i
, true, false);
1975 for (unsigned i
= 0; i
< fs
->varying_count
; i
++) {
1976 panfrost_emit_varying(ofs
+ i
, fs
, vs
, vs
, present
,
1977 ctx
->streamout
.num_targets
, streamout_offsets
,
1979 gen_offsets
, gen_formats
, &gen_stride
, i
, false, true);
1982 unsigned xfb_base
= pan_xfb_base(present
);
1983 struct panfrost_transfer T
= panfrost_pool_alloc(&batch
->pool
,
1984 MALI_ATTRIBUTE_BUFFER_LENGTH
* (xfb_base
+ ctx
->streamout
.num_targets
));
1985 struct mali_attribute_buffer_packed
*varyings
=
1986 (struct mali_attribute_buffer_packed
*) T
.cpu
;
1988 /* Emit the stream out buffers */
1990 unsigned out_count
= u_stream_outputs_for_vertices(ctx
->active_prim
,
1993 for (unsigned i
= 0; i
< ctx
->streamout
.num_targets
; ++i
) {
1994 panfrost_emit_streamout(batch
, &varyings
[xfb_base
+ i
],
1996 ctx
->streamout
.offsets
[i
],
1998 ctx
->streamout
.targets
[i
]);
2001 panfrost_emit_varyings(batch
,
2002 &varyings
[pan_varying_index(present
, PAN_VARY_GENERAL
)],
2003 gen_stride
, vertex_count
);
2005 /* fp32 vec4 gl_Position */
2006 tiler_postfix
->position_varying
= panfrost_emit_varyings(batch
,
2007 &varyings
[pan_varying_index(present
, PAN_VARY_POSITION
)],
2008 sizeof(float) * 4, vertex_count
);
2010 if (present
& (1 << PAN_VARY_PSIZ
)) {
2011 primitive_size
->pointer
= panfrost_emit_varyings(batch
,
2012 &varyings
[pan_varying_index(present
, PAN_VARY_PSIZ
)],
2016 pan_emit_special_input(varyings
, present
, PAN_VARY_PNTCOORD
, MALI_ATTRIBUTE_SPECIAL_POINT_COORD
);
2017 pan_emit_special_input(varyings
, present
, PAN_VARY_FACE
, MALI_ATTRIBUTE_SPECIAL_FRONT_FACING
);
2018 pan_emit_special_input(varyings
, present
, PAN_VARY_FRAGCOORD
, MALI_ATTRIBUTE_SPECIAL_FRAG_COORD
);
2020 vertex_postfix
->varyings
= T
.gpu
;
2021 tiler_postfix
->varyings
= T
.gpu
;
2023 vertex_postfix
->varying_meta
= trans
.gpu
;
2024 tiler_postfix
->varying_meta
= trans
.gpu
+ vs_size
;
2028 panfrost_emit_vertex_tiler_jobs(struct panfrost_batch
*batch
,
2029 struct mali_vertex_tiler_prefix
*vertex_prefix
,
2030 struct mali_vertex_tiler_postfix
*vertex_postfix
,
2031 struct mali_vertex_tiler_prefix
*tiler_prefix
,
2032 struct mali_vertex_tiler_postfix
*tiler_postfix
,
2033 union midgard_primitive_size
*primitive_size
)
2035 struct panfrost_context
*ctx
= batch
->ctx
;
2036 struct panfrost_device
*device
= pan_device(ctx
->base
.screen
);
2037 bool wallpapering
= ctx
->wallpaper_batch
&& batch
->scoreboard
.tiler_dep
;
2038 struct bifrost_payload_vertex bifrost_vertex
= {0,};
2039 struct bifrost_payload_tiler bifrost_tiler
= {0,};
2040 struct midgard_payload_vertex_tiler midgard_vertex
= {0,};
2041 struct midgard_payload_vertex_tiler midgard_tiler
= {0,};
2043 size_t vp_size
, tp_size
;
2045 if (device
->quirks
& IS_BIFROST
) {
2046 bifrost_vertex
.prefix
= *vertex_prefix
;
2047 bifrost_vertex
.postfix
= *vertex_postfix
;
2048 vp
= &bifrost_vertex
;
2049 vp_size
= sizeof(bifrost_vertex
);
2051 bifrost_tiler
.prefix
= *tiler_prefix
;
2052 bifrost_tiler
.tiler
.primitive_size
= *primitive_size
;
2053 bifrost_tiler
.tiler
.tiler_meta
= panfrost_batch_get_tiler_meta(batch
, ~0);
2054 bifrost_tiler
.postfix
= *tiler_postfix
;
2055 tp
= &bifrost_tiler
;
2056 tp_size
= sizeof(bifrost_tiler
);
2058 midgard_vertex
.prefix
= *vertex_prefix
;
2059 midgard_vertex
.postfix
= *vertex_postfix
;
2060 vp
= &midgard_vertex
;
2061 vp_size
= sizeof(midgard_vertex
);
2063 midgard_tiler
.prefix
= *tiler_prefix
;
2064 midgard_tiler
.postfix
= *tiler_postfix
;
2065 midgard_tiler
.primitive_size
= *primitive_size
;
2066 tp
= &midgard_tiler
;
2067 tp_size
= sizeof(midgard_tiler
);
2071 /* Inject in reverse order, with "predicted" job indices.
2072 * THIS IS A HACK XXX */
2073 panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_TILER
, false,
2074 batch
->scoreboard
.job_index
+ 2, tp
, tp_size
, true);
2075 panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_VERTEX
, false, 0,
2080 /* If rasterizer discard is enable, only submit the vertex */
2082 unsigned vertex
= panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_VERTEX
, false, 0,
2083 vp
, vp_size
, false);
2085 if (ctx
->rasterizer
->base
.rasterizer_discard
)
2088 panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_TILER
, false, vertex
, tp
, tp_size
,
2092 /* TODO: stop hardcoding this */
2094 panfrost_emit_sample_locations(struct panfrost_batch
*batch
)
2096 uint16_t locations
[] = {
2147 return panfrost_pool_upload(&batch
->pool
, locations
, 96 * sizeof(uint16_t));