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 meta
->shader
= ss
->shader
;
319 meta
->attribute_count
= ss
->attribute_count
;
320 meta
->varying_count
= ss
->varying_count
;
321 meta
->texture_count
= ctx
->sampler_view_count
[st
];
322 meta
->sampler_count
= ctx
->sampler_count
[st
];
324 if (dev
->quirks
& IS_BIFROST
) {
325 meta
->bifrost1
.unk1
= 0x800000;
326 meta
->bifrost2
.preload_regs
= 0xC0;
327 meta
->bifrost2
.uniform_count
= ss
->uniform_count
;
328 meta
->bifrost1
.uniform_buffer_count
= panfrost_ubo_count(ctx
, st
);
330 struct mali_midgard_properties_packed prop
;
332 pan_pack(&prop
, MIDGARD_PROPERTIES
, cfg
) {
333 cfg
.uniform_buffer_count
= panfrost_ubo_count(ctx
, st
);
334 cfg
.uniform_count
= ss
->uniform_count
;
335 cfg
.work_register_count
= ss
->work_reg_count
;
336 cfg
.writes_globals
= ss
->writes_global
;
337 cfg
.suppress_inf_nan
= true; /* XXX */
340 memcpy(&meta
->midgard1
, &prop
, sizeof(prop
));
345 translate_tex_wrap(enum pipe_tex_wrap w
)
348 case PIPE_TEX_WRAP_REPEAT
: return MALI_WRAP_MODE_REPEAT
;
349 case PIPE_TEX_WRAP_CLAMP
: return MALI_WRAP_MODE_CLAMP
;
350 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
: return MALI_WRAP_MODE_CLAMP_TO_EDGE
;
351 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
: return MALI_WRAP_MODE_CLAMP_TO_BORDER
;
352 case PIPE_TEX_WRAP_MIRROR_REPEAT
: return MALI_WRAP_MODE_MIRRORED_REPEAT
;
353 case PIPE_TEX_WRAP_MIRROR_CLAMP
: return MALI_WRAP_MODE_MIRRORED_CLAMP
;
354 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE
: return MALI_WRAP_MODE_MIRRORED_CLAMP_TO_EDGE
;
355 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER
: return MALI_WRAP_MODE_MIRRORED_CLAMP_TO_BORDER
;
356 default: unreachable("Invalid wrap");
360 /* The hardware compares in the wrong order order, so we have to flip before
361 * encoding. Yes, really. */
363 static enum mali_func
364 panfrost_sampler_compare_func(const struct pipe_sampler_state
*cso
)
366 if (!cso
->compare_mode
)
367 return MALI_FUNC_NEVER
;
369 enum mali_func f
= panfrost_translate_compare_func(cso
->compare_func
);
370 return panfrost_flip_compare_func(f
);
373 static enum mali_mipmap_mode
374 pan_pipe_to_mipmode(enum pipe_tex_mipfilter f
)
377 case PIPE_TEX_MIPFILTER_NEAREST
: return MALI_MIPMAP_MODE_NEAREST
;
378 case PIPE_TEX_MIPFILTER_LINEAR
: return MALI_MIPMAP_MODE_TRILINEAR
;
379 case PIPE_TEX_MIPFILTER_NONE
: return MALI_MIPMAP_MODE_NONE
;
380 default: unreachable("Invalid");
384 void panfrost_sampler_desc_init(const struct pipe_sampler_state
*cso
,
385 struct mali_midgard_sampler_packed
*hw
)
387 pan_pack(hw
, MIDGARD_SAMPLER
, cfg
) {
388 cfg
.magnify_nearest
= cso
->mag_img_filter
== PIPE_TEX_FILTER_NEAREST
;
389 cfg
.minify_nearest
= cso
->min_img_filter
== PIPE_TEX_FILTER_NEAREST
;
390 cfg
.mipmap_mode
= (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_LINEAR
) ?
391 MALI_MIPMAP_MODE_TRILINEAR
: MALI_MIPMAP_MODE_NEAREST
;
392 cfg
.normalized_coordinates
= cso
->normalized_coords
;
394 cfg
.lod_bias
= FIXED_16(cso
->lod_bias
, true);
396 cfg
.minimum_lod
= FIXED_16(cso
->min_lod
, false);
398 /* If necessary, we disable mipmapping in the sampler descriptor by
399 * clamping the LOD as tight as possible (from 0 to epsilon,
400 * essentially -- remember these are fixed point numbers, so
403 cfg
.maximum_lod
= (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_NONE
) ?
404 cfg
.minimum_lod
+ 1 :
405 FIXED_16(cso
->max_lod
, false);
407 cfg
.wrap_mode_s
= translate_tex_wrap(cso
->wrap_s
);
408 cfg
.wrap_mode_t
= translate_tex_wrap(cso
->wrap_t
);
409 cfg
.wrap_mode_r
= translate_tex_wrap(cso
->wrap_r
);
411 cfg
.compare_function
= panfrost_sampler_compare_func(cso
);
412 cfg
.seamless_cube_map
= cso
->seamless_cube_map
;
414 cfg
.border_color_r
= cso
->border_color
.f
[0];
415 cfg
.border_color_g
= cso
->border_color
.f
[1];
416 cfg
.border_color_b
= cso
->border_color
.f
[2];
417 cfg
.border_color_a
= cso
->border_color
.f
[3];
421 void panfrost_sampler_desc_init_bifrost(const struct pipe_sampler_state
*cso
,
422 struct mali_bifrost_sampler_packed
*hw
)
424 pan_pack(hw
, BIFROST_SAMPLER
, cfg
) {
425 cfg
.magnify_linear
= cso
->mag_img_filter
== PIPE_TEX_FILTER_LINEAR
;
426 cfg
.minify_linear
= cso
->min_img_filter
== PIPE_TEX_FILTER_LINEAR
;
427 cfg
.mipmap_mode
= pan_pipe_to_mipmode(cso
->min_mip_filter
);
428 cfg
.normalized_coordinates
= cso
->normalized_coords
;
430 cfg
.lod_bias
= FIXED_16(cso
->lod_bias
, true);
431 cfg
.minimum_lod
= FIXED_16(cso
->min_lod
, false);
432 cfg
.maximum_lod
= FIXED_16(cso
->max_lod
, false);
434 cfg
.wrap_mode_s
= translate_tex_wrap(cso
->wrap_s
);
435 cfg
.wrap_mode_t
= translate_tex_wrap(cso
->wrap_t
);
436 cfg
.wrap_mode_r
= translate_tex_wrap(cso
->wrap_r
);
438 cfg
.compare_function
= panfrost_sampler_compare_func(cso
);
439 cfg
.seamless_cube_map
= cso
->seamless_cube_map
;
444 panfrost_fs_required(
445 struct panfrost_shader_state
*fs
,
446 struct panfrost_blend_final
*blend
,
449 /* If we generally have side effects */
453 /* If colour is written we need to execute */
454 for (unsigned i
= 0; i
< rt_count
; ++i
) {
455 if (!blend
[i
].no_colour
)
459 /* If depth is written and not implied we need to execute.
460 * TODO: Predicate on Z/S writes being enabled */
461 return (fs
->writes_depth
|| fs
->writes_stencil
);
465 panfrost_emit_blend(struct panfrost_batch
*batch
, void *rts
,
466 struct panfrost_blend_final
*blend
)
468 const struct panfrost_device
*dev
= pan_device(batch
->ctx
->base
.screen
);
469 struct panfrost_shader_state
*fs
= panfrost_get_shader_state(batch
->ctx
, PIPE_SHADER_FRAGMENT
);
470 unsigned rt_count
= batch
->key
.nr_cbufs
;
472 struct bifrost_blend_rt
*brts
= rts
;
473 struct midgard_blend_rt
*mrts
= rts
;
475 /* Disable blending for depth-only on Bifrost */
477 if (rt_count
== 0 && dev
->quirks
& IS_BIFROST
)
480 for (unsigned i
= 0; i
< rt_count
; ++i
) {
483 pan_pack(&flags
, BLEND_FLAGS
, cfg
) {
484 if (blend
[i
].no_colour
) {
489 batch
->draws
|= (PIPE_CLEAR_COLOR0
<< i
);
491 cfg
.srgb
= util_format_is_srgb(batch
->key
.cbufs
[i
]->format
);
492 cfg
.load_destination
= blend
[i
].load_dest
;
493 cfg
.dither_disable
= !batch
->ctx
->blend
->base
.dither
;
495 if (!(dev
->quirks
& IS_BIFROST
))
496 cfg
.midgard_blend_shader
= blend
[i
].is_shader
;
499 if (dev
->quirks
& IS_BIFROST
) {
500 brts
[i
].flags
= flags
;
502 if (blend
[i
].is_shader
) {
503 /* The blend shader's address needs to be at
504 * the same top 32 bit as the fragment shader.
505 * TODO: Ensure that's always the case.
507 assert((blend
[i
].shader
.gpu
& (0xffffffffull
<< 32)) ==
508 (fs
->bo
->gpu
& (0xffffffffull
<< 32)));
509 brts
[i
].shader
= blend
[i
].shader
.gpu
;
512 enum pipe_format format
= batch
->key
.cbufs
[i
]->format
;
513 const struct util_format_description
*format_desc
;
514 format_desc
= util_format_description(format
);
516 brts
[i
].equation
= blend
[i
].equation
.equation
;
518 /* TODO: this is a bit more complicated */
519 brts
[i
].constant
= blend
[i
].equation
.constant
;
521 brts
[i
].format
= panfrost_format_to_bifrost_blend(format_desc
);
523 /* 0x19 disables blending and forces REPLACE
524 * mode (equivalent to rgb_mode = alpha_mode =
525 * x122, colour mask = 0xF). 0x1a allows
527 brts
[i
].unk2
= blend
[i
].opaque
? 0x19 : 0x1a;
529 brts
[i
].shader_type
= fs
->blend_types
[i
];
532 memcpy(&mrts
[i
].flags
, &flags
, sizeof(flags
));
534 if (blend
[i
].is_shader
) {
535 mrts
[i
].blend
.shader
= blend
[i
].shader
.gpu
| blend
[i
].shader
.first_tag
;
537 mrts
[i
].blend
.equation
= blend
[i
].equation
.equation
;
538 mrts
[i
].blend
.constant
= blend
[i
].equation
.constant
;
545 panfrost_emit_frag_shader(struct panfrost_context
*ctx
,
546 struct mali_shader_meta
*fragmeta
,
547 struct panfrost_blend_final
*blend
)
549 const struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
550 struct panfrost_shader_state
*fs
;
552 fs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_FRAGMENT
);
554 struct pipe_rasterizer_state
*rast
= &ctx
->rasterizer
->base
;
555 const struct panfrost_zsa_state
*zsa
= ctx
->depth_stencil
;
556 unsigned rt_count
= ctx
->pipe_framebuffer
.nr_cbufs
;
558 memset(fragmeta
, 0, sizeof(*fragmeta
));
560 fragmeta
->shader
= fs
->shader
;
561 fragmeta
->attribute_count
= fs
->attribute_count
;
562 fragmeta
->varying_count
= fs
->varying_count
;
563 fragmeta
->texture_count
= ctx
->sampler_view_count
[PIPE_SHADER_FRAGMENT
];
564 fragmeta
->sampler_count
= ctx
->sampler_count
[PIPE_SHADER_FRAGMENT
];
566 if (dev
->quirks
& IS_BIFROST
) {
567 /* First clause ATEST |= 0x4000000.
568 * Lefs than 32 regs |= 0x200 */
569 fragmeta
->bifrost1
.unk1
= 0x950020;
571 fragmeta
->bifrost1
.uniform_buffer_count
= panfrost_ubo_count(ctx
, PIPE_SHADER_FRAGMENT
);
572 fragmeta
->bifrost2
.preload_regs
= 0x1;
573 SET_BIT(fragmeta
->bifrost2
.preload_regs
, 0x10, fs
->reads_frag_coord
);
575 fragmeta
->bifrost2
.uniform_count
= fs
->uniform_count
;
577 struct mali_midgard_properties_packed prop
;
579 /* Reasons to disable early-Z from a shader perspective */
580 bool late_z
= fs
->can_discard
|| fs
->writes_global
||
581 fs
->writes_depth
|| fs
->writes_stencil
;
583 /* Reasons to disable early-Z from a CSO perspective */
584 bool alpha_to_coverage
= ctx
->blend
->base
.alpha_to_coverage
;
586 /* If either depth or stencil is enabled, discard matters */
588 (zsa
->base
.depth
.enabled
&& zsa
->base
.depth
.func
!= PIPE_FUNC_ALWAYS
) ||
589 zsa
->base
.stencil
[0].enabled
;
591 bool has_blend_shader
= false;
593 for (unsigned c
= 0; c
< rt_count
; ++c
)
594 has_blend_shader
|= blend
[c
].is_shader
;
596 pan_pack(&prop
, MIDGARD_PROPERTIES
, cfg
) {
597 cfg
.uniform_buffer_count
= panfrost_ubo_count(ctx
, PIPE_SHADER_FRAGMENT
);
598 cfg
.uniform_count
= fs
->uniform_count
;
599 cfg
.work_register_count
= fs
->work_reg_count
;
600 cfg
.writes_globals
= fs
->writes_global
;
601 cfg
.suppress_inf_nan
= true; /* XXX */
603 /* TODO: Reduce this limit? */
604 if (has_blend_shader
)
605 cfg
.work_register_count
= MAX2(cfg
.work_register_count
, 8);
607 cfg
.stencil_from_shader
= fs
->writes_stencil
;
608 cfg
.helper_invocation_enable
= fs
->helper_invocations
;
609 cfg
.depth_source
= fs
->writes_depth
?
610 MALI_DEPTH_SOURCE_SHADER
:
611 MALI_DEPTH_SOURCE_FIXED_FUNCTION
;
613 /* Depend on other state */
614 cfg
.early_z_enable
= !(late_z
|| alpha_to_coverage
);
615 cfg
.reads_tilebuffer
= fs
->outputs_read
|| (!zs_enabled
&& fs
->can_discard
);
616 cfg
.reads_depth_stencil
= zs_enabled
&& fs
->can_discard
;
619 memcpy(&fragmeta
->midgard1
, &prop
, sizeof(prop
));
622 bool msaa
= rast
->multisample
;
623 fragmeta
->coverage_mask
= msaa
? ctx
->sample_mask
: ~0;
625 fragmeta
->unknown2_3
= MALI_DEPTH_FUNC(MALI_FUNC_ALWAYS
) | 0x10;
626 fragmeta
->unknown2_4
= 0x4e0;
628 /* TODO: Sample size */
629 SET_BIT(fragmeta
->unknown2_3
, MALI_HAS_MSAA
, msaa
);
630 SET_BIT(fragmeta
->unknown2_4
, MALI_NO_MSAA
, !msaa
);
632 /* EXT_shader_framebuffer_fetch requires the shader to be run
633 * per-sample when outputs are read. */
634 bool per_sample
= ctx
->min_samples
> 1 || fs
->outputs_read
;
635 SET_BIT(fragmeta
->unknown2_3
, MALI_PER_SAMPLE
, msaa
&& per_sample
);
637 fragmeta
->depth_units
= rast
->offset_units
* 2.0f
;
638 fragmeta
->depth_factor
= rast
->offset_scale
;
640 /* XXX: Which bit is which? Does this maybe allow offseting not-tri? */
642 SET_BIT(fragmeta
->unknown2_4
, MALI_DEPTH_RANGE_A
, rast
->offset_tri
);
643 SET_BIT(fragmeta
->unknown2_4
, MALI_DEPTH_RANGE_B
, rast
->offset_tri
);
645 SET_BIT(fragmeta
->unknown2_3
, MALI_DEPTH_CLIP_NEAR
, rast
->depth_clip_near
);
646 SET_BIT(fragmeta
->unknown2_3
, MALI_DEPTH_CLIP_FAR
, rast
->depth_clip_far
);
648 SET_BIT(fragmeta
->unknown2_4
, MALI_STENCIL_TEST
,
649 zsa
->base
.stencil
[0].enabled
);
651 fragmeta
->stencil_mask_front
= zsa
->stencil_mask_front
;
652 fragmeta
->stencil_mask_back
= zsa
->stencil_mask_back
;
654 /* Bottom bits for stencil ref, exactly one word */
655 fragmeta
->stencil_front
.opaque
[0] = zsa
->stencil_front
.opaque
[0] | ctx
->stencil_ref
.ref_value
[0];
657 /* If back-stencil is not enabled, use the front values */
659 if (zsa
->base
.stencil
[1].enabled
)
660 fragmeta
->stencil_back
.opaque
[0] = zsa
->stencil_back
.opaque
[0] | ctx
->stencil_ref
.ref_value
[1];
662 fragmeta
->stencil_back
= fragmeta
->stencil_front
;
664 SET_BIT(fragmeta
->unknown2_3
, MALI_DEPTH_WRITEMASK
,
665 zsa
->base
.depth
.writemask
);
667 fragmeta
->unknown2_3
&= ~MALI_DEPTH_FUNC_MASK
;
668 fragmeta
->unknown2_3
|= MALI_DEPTH_FUNC(panfrost_translate_compare_func(
669 zsa
->base
.depth
.enabled
? zsa
->base
.depth
.func
: PIPE_FUNC_ALWAYS
));
671 SET_BIT(fragmeta
->unknown2_4
, MALI_NO_DITHER
,
672 (dev
->quirks
& MIDGARD_SFBD
) && ctx
->blend
&&
673 !ctx
->blend
->base
.dither
);
675 SET_BIT(fragmeta
->unknown2_4
, 0x10, dev
->quirks
& MIDGARD_SFBD
);
677 SET_BIT(fragmeta
->unknown2_4
, MALI_ALPHA_TO_COVERAGE
,
678 ctx
->blend
->base
.alpha_to_coverage
);
680 /* Disable shader execution if we can */
681 if (dev
->quirks
& MIDGARD_SHADERLESS
682 && !panfrost_fs_required(fs
, blend
, rt_count
)) {
683 fragmeta
->shader
= 0x1;
684 fragmeta
->attribute_count
= 0;
685 fragmeta
->varying_count
= 0;
686 fragmeta
->texture_count
= 0;
687 fragmeta
->sampler_count
= 0;
689 /* This feature is not known to work on Bifrost */
690 struct mali_midgard_properties_packed prop
;
692 pan_pack(&prop
, MIDGARD_PROPERTIES
, cfg
) {
693 cfg
.work_register_count
= 1;
694 cfg
.depth_source
= MALI_DEPTH_SOURCE_FIXED_FUNCTION
;
695 cfg
.early_z_enable
= true;
698 memcpy(&fragmeta
->midgard1
, &prop
, sizeof(prop
));
701 if (dev
->quirks
& MIDGARD_SFBD
) {
702 /* When only a single render target platform is used, the blend
703 * information is inside the shader meta itself. We additionally
704 * need to signal CAN_DISCARD for nontrivial blend modes (so
705 * we're able to read back the destination buffer) */
707 SET_BIT(fragmeta
->unknown2_3
, MALI_HAS_BLEND_SHADER
,
710 if (blend
[0].is_shader
) {
711 fragmeta
->blend
.shader
= blend
[0].shader
.gpu
|
712 blend
[0].shader
.first_tag
;
714 fragmeta
->blend
.equation
= blend
[0].equation
.equation
;
715 fragmeta
->blend
.constant
= blend
[0].equation
.constant
;
718 SET_BIT(fragmeta
->unknown2_3
, MALI_CAN_DISCARD
,
720 } else if (!(dev
->quirks
& IS_BIFROST
)) {
721 /* Bug where MRT-capable hw apparently reads the last blend
722 * shader from here instead of the usual location? */
724 for (signed rt
= ((signed) rt_count
- 1); rt
>= 0; --rt
) {
725 if (!blend
[rt
].is_shader
)
728 fragmeta
->blend
.shader
= blend
[rt
].shader
.gpu
|
729 blend
[rt
].shader
.first_tag
;
734 if (dev
->quirks
& IS_BIFROST
) {
735 bool no_blend
= true;
737 for (unsigned i
= 0; i
< rt_count
; ++i
)
738 no_blend
&= (!blend
[i
].load_dest
| blend
[i
].no_colour
);
740 SET_BIT(fragmeta
->bifrost1
.unk1
, MALI_BIFROST_EARLY_Z
,
741 !fs
->can_discard
&& !fs
->writes_depth
&& no_blend
);
746 panfrost_emit_shader_meta(struct panfrost_batch
*batch
,
747 enum pipe_shader_type st
,
748 struct mali_vertex_tiler_postfix
*postfix
)
750 struct panfrost_context
*ctx
= batch
->ctx
;
751 struct panfrost_shader_state
*ss
= panfrost_get_shader_state(ctx
, st
);
758 struct mali_shader_meta meta
;
760 /* Add the shader BO to the batch. */
761 panfrost_batch_add_bo(batch
, ss
->bo
,
762 PAN_BO_ACCESS_PRIVATE
|
764 panfrost_bo_access_for_stage(st
));
768 if (st
== PIPE_SHADER_FRAGMENT
) {
769 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
770 unsigned rt_count
= MAX2(ctx
->pipe_framebuffer
.nr_cbufs
, 1);
771 size_t desc_size
= sizeof(meta
);
773 struct panfrost_transfer xfer
;
776 if (dev
->quirks
& MIDGARD_SFBD
)
778 else if (dev
->quirks
& IS_BIFROST
)
779 rt_size
= sizeof(struct bifrost_blend_rt
);
781 rt_size
= sizeof(struct midgard_blend_rt
);
783 desc_size
+= rt_size
* rt_count
;
786 rts
= rzalloc_size(ctx
, rt_size
* rt_count
);
788 struct panfrost_blend_final blend
[PIPE_MAX_COLOR_BUFS
];
790 for (unsigned c
= 0; c
< ctx
->pipe_framebuffer
.nr_cbufs
; ++c
)
791 blend
[c
] = panfrost_get_blend_for_context(ctx
, c
);
793 panfrost_emit_frag_shader(ctx
, &meta
, blend
);
795 if (!(dev
->quirks
& MIDGARD_SFBD
))
796 panfrost_emit_blend(batch
, rts
, blend
);
798 batch
->draws
|= PIPE_CLEAR_COLOR0
;
800 xfer
= panfrost_pool_alloc_aligned(&batch
->pool
, desc_size
, sizeof(meta
));
802 memcpy(xfer
.cpu
, &meta
, sizeof(meta
));
803 memcpy(xfer
.cpu
+ sizeof(meta
), rts
, rt_size
* rt_count
);
808 shader_ptr
= xfer
.gpu
;
810 panfrost_emit_compute_shader(ctx
, st
, &meta
);
812 shader_ptr
= panfrost_pool_upload(&batch
->pool
, &meta
,
816 postfix
->shader
= shader_ptr
;
820 panfrost_emit_viewport(struct panfrost_batch
*batch
,
821 struct mali_vertex_tiler_postfix
*tiler_postfix
)
823 struct panfrost_context
*ctx
= batch
->ctx
;
824 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
825 const struct pipe_scissor_state
*ss
= &ctx
->scissor
;
826 const struct pipe_rasterizer_state
*rast
= &ctx
->rasterizer
->base
;
827 const struct pipe_framebuffer_state
*fb
= &ctx
->pipe_framebuffer
;
829 /* Derive min/max from translate/scale. Note since |x| >= 0 by
830 * definition, we have that -|x| <= |x| hence translate - |scale| <=
831 * translate + |scale|, so the ordering is correct here. */
832 float vp_minx
= (int) (vp
->translate
[0] - fabsf(vp
->scale
[0]));
833 float vp_maxx
= (int) (vp
->translate
[0] + fabsf(vp
->scale
[0]));
834 float vp_miny
= (int) (vp
->translate
[1] - fabsf(vp
->scale
[1]));
835 float vp_maxy
= (int) (vp
->translate
[1] + fabsf(vp
->scale
[1]));
836 float minz
= (vp
->translate
[2] - fabsf(vp
->scale
[2]));
837 float maxz
= (vp
->translate
[2] + fabsf(vp
->scale
[2]));
839 /* Scissor to the intersection of viewport and to the scissor, clamped
840 * to the framebuffer */
842 unsigned minx
= MIN2(fb
->width
, vp_minx
);
843 unsigned maxx
= MIN2(fb
->width
, vp_maxx
);
844 unsigned miny
= MIN2(fb
->height
, vp_miny
);
845 unsigned maxy
= MIN2(fb
->height
, vp_maxy
);
847 if (ss
&& rast
->scissor
) {
848 minx
= MAX2(ss
->minx
, minx
);
849 miny
= MAX2(ss
->miny
, miny
);
850 maxx
= MIN2(ss
->maxx
, maxx
);
851 maxy
= MIN2(ss
->maxy
, maxy
);
854 struct panfrost_transfer T
= panfrost_pool_alloc(&batch
->pool
, MALI_VIEWPORT_LENGTH
);
856 pan_pack(T
.cpu
, VIEWPORT
, cfg
) {
857 cfg
.scissor_minimum_x
= minx
;
858 cfg
.scissor_minimum_y
= miny
;
859 cfg
.scissor_maximum_x
= maxx
- 1;
860 cfg
.scissor_maximum_y
= maxy
- 1;
862 cfg
.minimum_z
= rast
->depth_clip_near
? minz
: -INFINITY
;
863 cfg
.maximum_z
= rast
->depth_clip_far
? maxz
: INFINITY
;
866 tiler_postfix
->viewport
= T
.gpu
;
867 panfrost_batch_union_scissor(batch
, minx
, miny
, maxx
, maxy
);
871 panfrost_map_constant_buffer_gpu(struct panfrost_batch
*batch
,
872 enum pipe_shader_type st
,
873 struct panfrost_constant_buffer
*buf
,
876 struct pipe_constant_buffer
*cb
= &buf
->cb
[index
];
877 struct panfrost_resource
*rsrc
= pan_resource(cb
->buffer
);
880 panfrost_batch_add_bo(batch
, rsrc
->bo
,
881 PAN_BO_ACCESS_SHARED
|
883 panfrost_bo_access_for_stage(st
));
885 /* Alignment gauranteed by
886 * PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT */
887 return rsrc
->bo
->gpu
+ cb
->buffer_offset
;
888 } else if (cb
->user_buffer
) {
889 return panfrost_pool_upload_aligned(&batch
->pool
,
892 cb
->buffer_size
, 16);
894 unreachable("No constant buffer");
898 struct sysval_uniform
{
908 panfrost_upload_viewport_scale_sysval(struct panfrost_batch
*batch
,
909 struct sysval_uniform
*uniform
)
911 struct panfrost_context
*ctx
= batch
->ctx
;
912 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
914 uniform
->f
[0] = vp
->scale
[0];
915 uniform
->f
[1] = vp
->scale
[1];
916 uniform
->f
[2] = vp
->scale
[2];
920 panfrost_upload_viewport_offset_sysval(struct panfrost_batch
*batch
,
921 struct sysval_uniform
*uniform
)
923 struct panfrost_context
*ctx
= batch
->ctx
;
924 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
926 uniform
->f
[0] = vp
->translate
[0];
927 uniform
->f
[1] = vp
->translate
[1];
928 uniform
->f
[2] = vp
->translate
[2];
931 static void panfrost_upload_txs_sysval(struct panfrost_batch
*batch
,
932 enum pipe_shader_type st
,
933 unsigned int sysvalid
,
934 struct sysval_uniform
*uniform
)
936 struct panfrost_context
*ctx
= batch
->ctx
;
937 unsigned texidx
= PAN_SYSVAL_ID_TO_TXS_TEX_IDX(sysvalid
);
938 unsigned dim
= PAN_SYSVAL_ID_TO_TXS_DIM(sysvalid
);
939 bool is_array
= PAN_SYSVAL_ID_TO_TXS_IS_ARRAY(sysvalid
);
940 struct pipe_sampler_view
*tex
= &ctx
->sampler_views
[st
][texidx
]->base
;
943 uniform
->i
[0] = u_minify(tex
->texture
->width0
, tex
->u
.tex
.first_level
);
946 uniform
->i
[1] = u_minify(tex
->texture
->height0
,
947 tex
->u
.tex
.first_level
);
950 uniform
->i
[2] = u_minify(tex
->texture
->depth0
,
951 tex
->u
.tex
.first_level
);
954 uniform
->i
[dim
] = tex
->texture
->array_size
;
958 panfrost_upload_ssbo_sysval(struct panfrost_batch
*batch
,
959 enum pipe_shader_type st
,
961 struct sysval_uniform
*uniform
)
963 struct panfrost_context
*ctx
= batch
->ctx
;
965 assert(ctx
->ssbo_mask
[st
] & (1 << ssbo_id
));
966 struct pipe_shader_buffer sb
= ctx
->ssbo
[st
][ssbo_id
];
968 /* Compute address */
969 struct panfrost_bo
*bo
= pan_resource(sb
.buffer
)->bo
;
971 panfrost_batch_add_bo(batch
, bo
,
972 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_RW
|
973 panfrost_bo_access_for_stage(st
));
975 /* Upload address and size as sysval */
976 uniform
->du
[0] = bo
->gpu
+ sb
.buffer_offset
;
977 uniform
->u
[2] = sb
.buffer_size
;
981 panfrost_upload_sampler_sysval(struct panfrost_batch
*batch
,
982 enum pipe_shader_type st
,
984 struct sysval_uniform
*uniform
)
986 struct panfrost_context
*ctx
= batch
->ctx
;
987 struct pipe_sampler_state
*sampl
= &ctx
->samplers
[st
][samp_idx
]->base
;
989 uniform
->f
[0] = sampl
->min_lod
;
990 uniform
->f
[1] = sampl
->max_lod
;
991 uniform
->f
[2] = sampl
->lod_bias
;
993 /* Even without any errata, Midgard represents "no mipmapping" as
994 * fixing the LOD with the clamps; keep behaviour consistent. c.f.
995 * panfrost_create_sampler_state which also explains our choice of
996 * epsilon value (again to keep behaviour consistent) */
998 if (sampl
->min_mip_filter
== PIPE_TEX_MIPFILTER_NONE
)
999 uniform
->f
[1] = uniform
->f
[0] + (1.0/256.0);
1003 panfrost_upload_num_work_groups_sysval(struct panfrost_batch
*batch
,
1004 struct sysval_uniform
*uniform
)
1006 struct panfrost_context
*ctx
= batch
->ctx
;
1008 uniform
->u
[0] = ctx
->compute_grid
->grid
[0];
1009 uniform
->u
[1] = ctx
->compute_grid
->grid
[1];
1010 uniform
->u
[2] = ctx
->compute_grid
->grid
[2];
1014 panfrost_upload_sysvals(struct panfrost_batch
*batch
, void *buf
,
1015 struct panfrost_shader_state
*ss
,
1016 enum pipe_shader_type st
)
1018 struct sysval_uniform
*uniforms
= (void *)buf
;
1020 for (unsigned i
= 0; i
< ss
->sysval_count
; ++i
) {
1021 int sysval
= ss
->sysval
[i
];
1023 switch (PAN_SYSVAL_TYPE(sysval
)) {
1024 case PAN_SYSVAL_VIEWPORT_SCALE
:
1025 panfrost_upload_viewport_scale_sysval(batch
,
1028 case PAN_SYSVAL_VIEWPORT_OFFSET
:
1029 panfrost_upload_viewport_offset_sysval(batch
,
1032 case PAN_SYSVAL_TEXTURE_SIZE
:
1033 panfrost_upload_txs_sysval(batch
, st
,
1034 PAN_SYSVAL_ID(sysval
),
1037 case PAN_SYSVAL_SSBO
:
1038 panfrost_upload_ssbo_sysval(batch
, st
,
1039 PAN_SYSVAL_ID(sysval
),
1042 case PAN_SYSVAL_NUM_WORK_GROUPS
:
1043 panfrost_upload_num_work_groups_sysval(batch
,
1046 case PAN_SYSVAL_SAMPLER
:
1047 panfrost_upload_sampler_sysval(batch
, st
,
1048 PAN_SYSVAL_ID(sysval
),
1058 panfrost_map_constant_buffer_cpu(struct panfrost_constant_buffer
*buf
,
1061 struct pipe_constant_buffer
*cb
= &buf
->cb
[index
];
1062 struct panfrost_resource
*rsrc
= pan_resource(cb
->buffer
);
1065 return rsrc
->bo
->cpu
;
1066 else if (cb
->user_buffer
)
1067 return cb
->user_buffer
;
1069 unreachable("No constant buffer");
1073 panfrost_emit_const_buf(struct panfrost_batch
*batch
,
1074 enum pipe_shader_type stage
,
1075 struct mali_vertex_tiler_postfix
*postfix
)
1077 struct panfrost_context
*ctx
= batch
->ctx
;
1078 struct panfrost_shader_variants
*all
= ctx
->shader
[stage
];
1083 struct panfrost_constant_buffer
*buf
= &ctx
->constant_buffer
[stage
];
1085 struct panfrost_shader_state
*ss
= &all
->variants
[all
->active_variant
];
1087 /* Uniforms are implicitly UBO #0 */
1088 bool has_uniforms
= buf
->enabled_mask
& (1 << 0);
1090 /* Allocate room for the sysval and the uniforms */
1091 size_t sys_size
= sizeof(float) * 4 * ss
->sysval_count
;
1092 size_t uniform_size
= has_uniforms
? (buf
->cb
[0].buffer_size
) : 0;
1093 size_t size
= sys_size
+ uniform_size
;
1094 struct panfrost_transfer transfer
=
1095 panfrost_pool_alloc_aligned(&batch
->pool
, size
, 16);
1097 /* Upload sysvals requested by the shader */
1098 panfrost_upload_sysvals(batch
, transfer
.cpu
, ss
, stage
);
1100 /* Upload uniforms */
1101 if (has_uniforms
&& uniform_size
) {
1102 const void *cpu
= panfrost_map_constant_buffer_cpu(buf
, 0);
1103 memcpy(transfer
.cpu
+ sys_size
, cpu
, uniform_size
);
1106 /* Next up, attach UBOs. UBO #0 is the uniforms we just
1109 unsigned ubo_count
= panfrost_ubo_count(ctx
, stage
);
1110 assert(ubo_count
>= 1);
1112 size_t sz
= MALI_UNIFORM_BUFFER_LENGTH
* ubo_count
;
1113 struct panfrost_transfer ubos
=
1114 panfrost_pool_alloc_aligned(&batch
->pool
, sz
,
1115 MALI_UNIFORM_BUFFER_LENGTH
);
1117 uint64_t *ubo_ptr
= (uint64_t *) ubos
.cpu
;
1119 /* Upload uniforms as a UBO */
1122 pan_pack(ubo_ptr
, UNIFORM_BUFFER
, cfg
) {
1123 cfg
.entries
= DIV_ROUND_UP(size
, 16);
1124 cfg
.pointer
= transfer
.gpu
;
1130 /* The rest are honest-to-goodness UBOs */
1132 for (unsigned ubo
= 1; ubo
< ubo_count
; ++ubo
) {
1133 size_t usz
= buf
->cb
[ubo
].buffer_size
;
1134 bool enabled
= buf
->enabled_mask
& (1 << ubo
);
1135 bool empty
= usz
== 0;
1137 if (!enabled
|| empty
) {
1142 pan_pack(ubo_ptr
+ ubo
, UNIFORM_BUFFER
, cfg
) {
1143 cfg
.entries
= DIV_ROUND_UP(usz
, 16);
1144 cfg
.pointer
= panfrost_map_constant_buffer_gpu(batch
,
1149 postfix
->uniforms
= transfer
.gpu
;
1150 postfix
->uniform_buffers
= ubos
.gpu
;
1152 buf
->dirty_mask
= 0;
1156 panfrost_emit_shared_memory(struct panfrost_batch
*batch
,
1157 const struct pipe_grid_info
*info
,
1158 struct midgard_payload_vertex_tiler
*vtp
)
1160 struct panfrost_context
*ctx
= batch
->ctx
;
1161 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
1162 struct panfrost_shader_variants
*all
= ctx
->shader
[PIPE_SHADER_COMPUTE
];
1163 struct panfrost_shader_state
*ss
= &all
->variants
[all
->active_variant
];
1164 unsigned single_size
= util_next_power_of_two(MAX2(ss
->shared_size
,
1167 unsigned log2_instances
=
1168 util_logbase2_ceil(info
->grid
[0]) +
1169 util_logbase2_ceil(info
->grid
[1]) +
1170 util_logbase2_ceil(info
->grid
[2]);
1172 unsigned shared_size
= single_size
* (1 << log2_instances
) * dev
->core_count
;
1173 struct panfrost_bo
*bo
= panfrost_batch_get_shared_memory(batch
,
1177 struct mali_shared_memory shared
= {
1178 .shared_memory
= bo
->gpu
,
1179 .shared_workgroup_count
= log2_instances
,
1180 .shared_shift
= util_logbase2(single_size
) + 1
1183 vtp
->postfix
.shared_memory
= panfrost_pool_upload_aligned(&batch
->pool
, &shared
,
1184 sizeof(shared
), 64);
1188 panfrost_get_tex_desc(struct panfrost_batch
*batch
,
1189 enum pipe_shader_type st
,
1190 struct panfrost_sampler_view
*view
)
1193 return (mali_ptr
) 0;
1195 struct pipe_sampler_view
*pview
= &view
->base
;
1196 struct panfrost_resource
*rsrc
= pan_resource(pview
->texture
);
1198 /* Add the BO to the job so it's retained until the job is done. */
1200 panfrost_batch_add_bo(batch
, rsrc
->bo
,
1201 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1202 panfrost_bo_access_for_stage(st
));
1204 panfrost_batch_add_bo(batch
, view
->bo
,
1205 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1206 panfrost_bo_access_for_stage(st
));
1208 return view
->bo
->gpu
;
1212 panfrost_update_sampler_view(struct panfrost_sampler_view
*view
,
1213 struct pipe_context
*pctx
)
1215 struct panfrost_resource
*rsrc
= pan_resource(view
->base
.texture
);
1216 if (view
->texture_bo
!= rsrc
->bo
->gpu
||
1217 view
->modifier
!= rsrc
->modifier
) {
1218 panfrost_bo_unreference(view
->bo
);
1219 panfrost_create_sampler_view_bo(view
, pctx
, &rsrc
->base
);
1224 panfrost_emit_texture_descriptors(struct panfrost_batch
*batch
,
1225 enum pipe_shader_type stage
,
1226 struct mali_vertex_tiler_postfix
*postfix
)
1228 struct panfrost_context
*ctx
= batch
->ctx
;
1229 struct panfrost_device
*device
= pan_device(ctx
->base
.screen
);
1231 if (!ctx
->sampler_view_count
[stage
])
1234 if (device
->quirks
& IS_BIFROST
) {
1235 struct panfrost_transfer T
= panfrost_pool_alloc_aligned(&batch
->pool
,
1236 MALI_BIFROST_TEXTURE_LENGTH
*
1237 ctx
->sampler_view_count
[stage
],
1238 MALI_BIFROST_TEXTURE_LENGTH
);
1240 struct mali_bifrost_texture_packed
*out
=
1241 (struct mali_bifrost_texture_packed
*) T
.cpu
;
1243 for (int i
= 0; i
< ctx
->sampler_view_count
[stage
]; ++i
) {
1244 struct panfrost_sampler_view
*view
= ctx
->sampler_views
[stage
][i
];
1245 struct pipe_sampler_view
*pview
= &view
->base
;
1246 struct panfrost_resource
*rsrc
= pan_resource(pview
->texture
);
1248 panfrost_update_sampler_view(view
, &ctx
->base
);
1249 out
[i
] = view
->bifrost_descriptor
;
1251 /* Add the BOs to the job so they are retained until the job is done. */
1253 panfrost_batch_add_bo(batch
, rsrc
->bo
,
1254 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1255 panfrost_bo_access_for_stage(stage
));
1257 panfrost_batch_add_bo(batch
, view
->bo
,
1258 PAN_BO_ACCESS_SHARED
| PAN_BO_ACCESS_READ
|
1259 panfrost_bo_access_for_stage(stage
));
1262 postfix
->textures
= T
.gpu
;
1264 uint64_t trampolines
[PIPE_MAX_SHADER_SAMPLER_VIEWS
];
1266 for (int i
= 0; i
< ctx
->sampler_view_count
[stage
]; ++i
) {
1267 struct panfrost_sampler_view
*view
= ctx
->sampler_views
[stage
][i
];
1269 panfrost_update_sampler_view(view
, &ctx
->base
);
1271 trampolines
[i
] = panfrost_get_tex_desc(batch
, stage
, view
);
1274 postfix
->textures
= panfrost_pool_upload_aligned(&batch
->pool
,
1277 ctx
->sampler_view_count
[stage
],
1283 panfrost_emit_sampler_descriptors(struct panfrost_batch
*batch
,
1284 enum pipe_shader_type stage
,
1285 struct mali_vertex_tiler_postfix
*postfix
)
1287 struct panfrost_context
*ctx
= batch
->ctx
;
1289 if (!ctx
->sampler_count
[stage
])
1292 size_t desc_size
= MALI_BIFROST_SAMPLER_LENGTH
;
1293 assert(MALI_BIFROST_SAMPLER_LENGTH
== MALI_MIDGARD_SAMPLER_LENGTH
);
1295 size_t sz
= desc_size
* ctx
->sampler_count
[stage
];
1296 struct panfrost_transfer T
= panfrost_pool_alloc_aligned(&batch
->pool
, sz
, desc_size
);
1297 struct mali_midgard_sampler_packed
*out
= (struct mali_midgard_sampler_packed
*) T
.cpu
;
1299 for (unsigned i
= 0; i
< ctx
->sampler_count
[stage
]; ++i
)
1300 out
[i
] = ctx
->samplers
[stage
][i
]->hw
;
1302 postfix
->sampler_descriptor
= T
.gpu
;
1306 panfrost_emit_vertex_data(struct panfrost_batch
*batch
,
1307 struct mali_vertex_tiler_postfix
*vertex_postfix
)
1309 struct panfrost_context
*ctx
= batch
->ctx
;
1310 struct panfrost_vertex_state
*so
= ctx
->vertex
;
1311 struct panfrost_shader_state
*vs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_VERTEX
);
1313 unsigned instance_shift
= vertex_postfix
->instance_shift
;
1314 unsigned instance_odd
= vertex_postfix
->instance_odd
;
1316 /* Worst case: everything is NPOT, which is only possible if instancing
1317 * is enabled. Otherwise single record is gauranteed */
1318 bool could_npot
= instance_shift
|| instance_odd
;
1320 struct panfrost_transfer S
= panfrost_pool_alloc_aligned(&batch
->pool
,
1321 MALI_ATTRIBUTE_BUFFER_LENGTH
* vs
->attribute_count
*
1322 (could_npot
? 2 : 1),
1323 MALI_ATTRIBUTE_BUFFER_LENGTH
* 2);
1325 struct panfrost_transfer T
= panfrost_pool_alloc_aligned(&batch
->pool
,
1326 MALI_ATTRIBUTE_LENGTH
* vs
->attribute_count
,
1327 MALI_ATTRIBUTE_LENGTH
);
1329 struct mali_attribute_buffer_packed
*bufs
=
1330 (struct mali_attribute_buffer_packed
*) S
.cpu
;
1332 struct mali_attribute_packed
*out
=
1333 (struct mali_attribute_packed
*) T
.cpu
;
1335 unsigned attrib_to_buffer
[PIPE_MAX_ATTRIBS
] = { 0 };
1338 for (unsigned i
= 0; i
< so
->num_elements
; ++i
) {
1339 /* We map buffers 1:1 with the attributes, which
1340 * means duplicating some vertex buffers (who cares? aside from
1341 * maybe some caching implications but I somehow doubt that
1344 struct pipe_vertex_element
*elem
= &so
->pipe
[i
];
1345 unsigned vbi
= elem
->vertex_buffer_index
;
1346 attrib_to_buffer
[i
] = k
;
1348 if (!(ctx
->vb_mask
& (1 << vbi
)))
1351 struct pipe_vertex_buffer
*buf
= &ctx
->vertex_buffers
[vbi
];
1352 struct panfrost_resource
*rsrc
;
1354 rsrc
= pan_resource(buf
->buffer
.resource
);
1358 /* Add a dependency of the batch on the vertex buffer */
1359 panfrost_batch_add_bo(batch
, rsrc
->bo
,
1360 PAN_BO_ACCESS_SHARED
|
1361 PAN_BO_ACCESS_READ
|
1362 PAN_BO_ACCESS_VERTEX_TILER
);
1364 /* Mask off lower bits, see offset fixup below */
1365 mali_ptr raw_addr
= rsrc
->bo
->gpu
+ buf
->buffer_offset
;
1366 mali_ptr addr
= raw_addr
& ~63;
1368 /* Since we advanced the base pointer, we shrink the buffer
1369 * size, but add the offset we subtracted */
1370 unsigned size
= rsrc
->base
.width0
+ (raw_addr
- addr
)
1371 - buf
->buffer_offset
;
1373 /* When there is a divisor, the hardware-level divisor is
1374 * the product of the instance divisor and the padded count */
1375 unsigned divisor
= elem
->instance_divisor
;
1376 unsigned hw_divisor
= ctx
->padded_count
* divisor
;
1377 unsigned stride
= buf
->stride
;
1379 /* If there's a divisor(=1) but no instancing, we want every
1380 * attribute to be the same */
1382 if (divisor
&& ctx
->instance_count
== 1)
1385 if (!divisor
|| ctx
->instance_count
<= 1) {
1386 pan_pack(bufs
+ k
, ATTRIBUTE_BUFFER
, cfg
) {
1387 if (ctx
->instance_count
> 1)
1388 cfg
.type
= MALI_ATTRIBUTE_TYPE_1D_MODULUS
;
1391 cfg
.stride
= stride
;
1393 cfg
.divisor_r
= instance_shift
;
1394 cfg
.divisor_p
= instance_odd
;
1396 } else if (util_is_power_of_two_or_zero(hw_divisor
)) {
1397 pan_pack(bufs
+ k
, ATTRIBUTE_BUFFER
, cfg
) {
1398 cfg
.type
= MALI_ATTRIBUTE_TYPE_1D_POT_DIVISOR
;
1400 cfg
.stride
= stride
;
1402 cfg
.divisor_r
= __builtin_ctz(hw_divisor
);
1406 unsigned shift
= 0, extra_flags
= 0;
1408 unsigned magic_divisor
=
1409 panfrost_compute_magic_divisor(hw_divisor
, &shift
, &extra_flags
);
1411 pan_pack(bufs
+ k
, ATTRIBUTE_BUFFER
, cfg
) {
1412 cfg
.type
= MALI_ATTRIBUTE_TYPE_1D_NPOT_DIVISOR
;
1414 cfg
.stride
= stride
;
1417 cfg
.divisor_r
= shift
;
1418 cfg
.divisor_e
= extra_flags
;
1421 pan_pack(bufs
+ k
+ 1, ATTRIBUTE_BUFFER_CONTINUATION_NPOT
, cfg
) {
1422 cfg
.divisor_numerator
= magic_divisor
;
1423 cfg
.divisor
= divisor
;
1432 /* Add special gl_VertexID/gl_InstanceID buffers */
1434 if (unlikely(vs
->attribute_count
>= PAN_VERTEX_ID
)) {
1435 panfrost_vertex_id(ctx
->padded_count
, &bufs
[k
], ctx
->instance_count
> 1);
1437 pan_pack(out
+ PAN_VERTEX_ID
, ATTRIBUTE
, cfg
) {
1438 cfg
.buffer_index
= k
++;
1439 cfg
.format
= so
->formats
[PAN_VERTEX_ID
];
1442 panfrost_instance_id(ctx
->padded_count
, &bufs
[k
], ctx
->instance_count
> 1);
1444 pan_pack(out
+ PAN_INSTANCE_ID
, ATTRIBUTE
, cfg
) {
1445 cfg
.buffer_index
= k
++;
1446 cfg
.format
= so
->formats
[PAN_INSTANCE_ID
];
1450 /* Attribute addresses require 64-byte alignment, so let:
1452 * base' = base & ~63 = base - (base & 63)
1453 * offset' = offset + (base & 63)
1455 * Since base' + offset' = base + offset, these are equivalent
1456 * addressing modes and now base is 64 aligned.
1459 unsigned start
= vertex_postfix
->offset_start
;
1461 for (unsigned i
= 0; i
< so
->num_elements
; ++i
) {
1462 unsigned vbi
= so
->pipe
[i
].vertex_buffer_index
;
1463 struct pipe_vertex_buffer
*buf
= &ctx
->vertex_buffers
[vbi
];
1465 /* Adjust by the masked off bits of the offset. Make sure we
1466 * read src_offset from so->hw (which is not GPU visible)
1467 * rather than target (which is) due to caching effects */
1469 unsigned src_offset
= so
->pipe
[i
].src_offset
;
1471 /* BOs aligned to 4k so guaranteed aligned to 64 */
1472 src_offset
+= (buf
->buffer_offset
& 63);
1474 /* Also, somewhat obscurely per-instance data needs to be
1475 * offset in response to a delayed start in an indexed draw */
1477 if (so
->pipe
[i
].instance_divisor
&& ctx
->instance_count
> 1 && start
)
1478 src_offset
-= buf
->stride
* start
;
1480 pan_pack(out
+ i
, ATTRIBUTE
, cfg
) {
1481 cfg
.buffer_index
= attrib_to_buffer
[i
];
1482 cfg
.format
= so
->formats
[i
];
1483 cfg
.offset
= src_offset
;
1487 vertex_postfix
->attributes
= S
.gpu
;
1488 vertex_postfix
->attribute_meta
= T
.gpu
;
1492 panfrost_emit_varyings(struct panfrost_batch
*batch
,
1493 struct mali_attribute_buffer_packed
*slot
,
1494 unsigned stride
, unsigned count
)
1496 unsigned size
= stride
* count
;
1497 mali_ptr ptr
= panfrost_pool_alloc_aligned(&batch
->invisible_pool
, size
, 64).gpu
;
1499 pan_pack(slot
, ATTRIBUTE_BUFFER
, cfg
) {
1500 cfg
.stride
= stride
;
1509 panfrost_streamout_offset(unsigned stride
, unsigned offset
,
1510 struct pipe_stream_output_target
*target
)
1512 return (target
->buffer_offset
+ (offset
* stride
* 4)) & 63;
1516 panfrost_emit_streamout(struct panfrost_batch
*batch
,
1517 struct mali_attribute_buffer_packed
*slot
,
1518 unsigned stride_words
, unsigned offset
, unsigned count
,
1519 struct pipe_stream_output_target
*target
)
1521 unsigned stride
= stride_words
* 4;
1522 unsigned max_size
= target
->buffer_size
;
1523 unsigned expected_size
= stride
* count
;
1525 /* Grab the BO and bind it to the batch */
1526 struct panfrost_bo
*bo
= pan_resource(target
->buffer
)->bo
;
1528 /* Varyings are WRITE from the perspective of the VERTEX but READ from
1529 * the perspective of the TILER and FRAGMENT.
1531 panfrost_batch_add_bo(batch
, bo
,
1532 PAN_BO_ACCESS_SHARED
|
1534 PAN_BO_ACCESS_VERTEX_TILER
|
1535 PAN_BO_ACCESS_FRAGMENT
);
1537 /* We will have an offset applied to get alignment */
1538 mali_ptr addr
= bo
->gpu
+ target
->buffer_offset
+ (offset
* stride
);
1540 pan_pack(slot
, ATTRIBUTE_BUFFER
, cfg
) {
1541 cfg
.pointer
= (addr
& ~63);
1542 cfg
.stride
= stride
;
1543 cfg
.size
= MIN2(max_size
, expected_size
) + (addr
& 63);
1548 has_point_coord(unsigned mask
, gl_varying_slot loc
)
1550 if ((loc
>= VARYING_SLOT_TEX0
) && (loc
<= VARYING_SLOT_TEX7
))
1551 return (mask
& (1 << (loc
- VARYING_SLOT_TEX0
)));
1552 else if (loc
== VARYING_SLOT_PNTC
)
1553 return (mask
& (1 << 8));
1558 /* Helpers for manipulating stream out information so we can pack varyings
1559 * accordingly. Compute the src_offset for a given captured varying */
1561 static struct pipe_stream_output
*
1562 pan_get_so(struct pipe_stream_output_info
*info
, gl_varying_slot loc
)
1564 for (unsigned i
= 0; i
< info
->num_outputs
; ++i
) {
1565 if (info
->output
[i
].register_index
== loc
)
1566 return &info
->output
[i
];
1569 unreachable("Varying not captured");
1573 pan_varying_size(enum mali_format fmt
)
1575 unsigned type
= MALI_EXTRACT_TYPE(fmt
);
1576 unsigned chan
= MALI_EXTRACT_CHANNELS(fmt
);
1577 unsigned bits
= MALI_EXTRACT_BITS(fmt
);
1580 if (bits
== MALI_CHANNEL_FLOAT
) {
1582 bool fp16
= (type
== MALI_FORMAT_SINT
);
1583 assert(fp16
|| (type
== MALI_FORMAT_UNORM
));
1587 assert(type
>= MALI_FORMAT_SNORM
&& type
<= MALI_FORMAT_SINT
);
1598 /* Indices for named (non-XFB) varyings that are present. These are packed
1599 * tightly so they correspond to a bitfield present (P) indexed by (1 <<
1600 * PAN_VARY_*). This has the nice property that you can lookup the buffer index
1601 * of a given special field given a shift S by:
1603 * idx = popcount(P & ((1 << S) - 1))
1605 * That is... look at all of the varyings that come earlier and count them, the
1606 * count is the new index since plus one. Likewise, the total number of special
1607 * buffers required is simply popcount(P)
1610 enum pan_special_varying
{
1611 PAN_VARY_GENERAL
= 0,
1612 PAN_VARY_POSITION
= 1,
1614 PAN_VARY_PNTCOORD
= 3,
1616 PAN_VARY_FRAGCOORD
= 5,
1622 /* Given a varying, figure out which index it correpsonds to */
1624 static inline unsigned
1625 pan_varying_index(unsigned present
, enum pan_special_varying v
)
1627 unsigned mask
= (1 << v
) - 1;
1628 return util_bitcount(present
& mask
);
1631 /* Get the base offset for XFB buffers, which by convention come after
1632 * everything else. Wrapper function for semantic reasons; by construction this
1633 * is just popcount. */
1635 static inline unsigned
1636 pan_xfb_base(unsigned present
)
1638 return util_bitcount(present
);
1641 /* Computes the present mask for varyings so we can start emitting varying records */
1643 static inline unsigned
1644 pan_varying_present(
1645 struct panfrost_shader_state
*vs
,
1646 struct panfrost_shader_state
*fs
,
1649 /* At the moment we always emit general and position buffers. Not
1650 * strictly necessary but usually harmless */
1652 unsigned present
= (1 << PAN_VARY_GENERAL
) | (1 << PAN_VARY_POSITION
);
1654 /* Enable special buffers by the shader info */
1656 if (vs
->writes_point_size
)
1657 present
|= (1 << PAN_VARY_PSIZ
);
1659 if (fs
->reads_point_coord
)
1660 present
|= (1 << PAN_VARY_PNTCOORD
);
1663 present
|= (1 << PAN_VARY_FACE
);
1665 if (fs
->reads_frag_coord
&& !(quirks
& IS_BIFROST
))
1666 present
|= (1 << PAN_VARY_FRAGCOORD
);
1668 /* Also, if we have a point sprite, we need a point coord buffer */
1670 for (unsigned i
= 0; i
< fs
->varying_count
; i
++) {
1671 gl_varying_slot loc
= fs
->varyings_loc
[i
];
1673 if (has_point_coord(fs
->point_sprite_mask
, loc
))
1674 present
|= (1 << PAN_VARY_PNTCOORD
);
1680 /* Emitters for varying records */
1683 pan_emit_vary(struct mali_attribute_packed
*out
,
1684 unsigned present
, enum pan_special_varying buf
,
1685 unsigned quirks
, enum mali_format format
,
1688 unsigned nr_channels
= MALI_EXTRACT_CHANNELS(format
);
1689 unsigned swizzle
= quirks
& HAS_SWIZZLES
?
1690 panfrost_get_default_swizzle(nr_channels
) :
1691 panfrost_bifrost_swizzle(nr_channels
);
1693 pan_pack(out
, ATTRIBUTE
, cfg
) {
1694 cfg
.buffer_index
= pan_varying_index(present
, buf
);
1695 cfg
.unknown
= quirks
& IS_BIFROST
? 0x0 : 0x1;
1696 cfg
.format
= (format
<< 12) | swizzle
;
1697 cfg
.offset
= offset
;
1701 /* General varying that is unused */
1704 pan_emit_vary_only(struct mali_attribute_packed
*out
,
1705 unsigned present
, unsigned quirks
)
1707 pan_emit_vary(out
, present
, 0, quirks
, MALI_VARYING_DISCARD
, 0);
1710 /* Special records */
1712 static const enum mali_format pan_varying_formats
[PAN_VARY_MAX
] = {
1713 [PAN_VARY_POSITION
] = MALI_VARYING_POS
,
1714 [PAN_VARY_PSIZ
] = MALI_R16F
,
1715 [PAN_VARY_PNTCOORD
] = MALI_R16F
,
1716 [PAN_VARY_FACE
] = MALI_R32I
,
1717 [PAN_VARY_FRAGCOORD
] = MALI_RGBA32F
1721 pan_emit_vary_special(struct mali_attribute_packed
*out
,
1722 unsigned present
, enum pan_special_varying buf
,
1725 assert(buf
< PAN_VARY_MAX
);
1726 pan_emit_vary(out
, present
, buf
, quirks
, pan_varying_formats
[buf
], 0);
1729 static enum mali_format
1730 pan_xfb_format(enum mali_format format
, unsigned nr
)
1732 if (MALI_EXTRACT_BITS(format
) == MALI_CHANNEL_FLOAT
)
1733 return MALI_R32F
| MALI_NR_CHANNELS(nr
);
1735 return MALI_EXTRACT_TYPE(format
) | MALI_NR_CHANNELS(nr
) | MALI_CHANNEL_32
;
1738 /* Transform feedback records. Note struct pipe_stream_output is (if packed as
1739 * a bitfield) 32-bit, smaller than a 64-bit pointer, so may as well pass by
1743 pan_emit_vary_xfb(struct mali_attribute_packed
*out
,
1746 unsigned *streamout_offsets
,
1748 enum mali_format format
,
1749 struct pipe_stream_output o
)
1751 unsigned swizzle
= quirks
& HAS_SWIZZLES
?
1752 panfrost_get_default_swizzle(o
.num_components
) :
1753 panfrost_bifrost_swizzle(o
.num_components
);
1755 pan_pack(out
, ATTRIBUTE
, cfg
) {
1756 /* XFB buffers come after everything else */
1757 cfg
.buffer_index
= pan_xfb_base(present
) + o
.output_buffer
;
1758 cfg
.unknown
= quirks
& IS_BIFROST
? 0x0 : 0x1;
1760 /* Override number of channels and precision to highp */
1761 cfg
.format
= (pan_xfb_format(format
, o
.num_components
) << 12) | swizzle
;
1763 /* Apply given offsets together */
1764 cfg
.offset
= (o
.dst_offset
* 4) /* dwords */
1765 + streamout_offsets
[o
.output_buffer
];
1769 /* Determine if we should capture a varying for XFB. This requires actually
1770 * having a buffer for it. If we don't capture it, we'll fallback to a general
1771 * varying path (linked or unlinked, possibly discarding the write) */
1774 panfrost_xfb_captured(struct panfrost_shader_state
*xfb
,
1775 unsigned loc
, unsigned max_xfb
)
1777 if (!(xfb
->so_mask
& (1ll << loc
)))
1780 struct pipe_stream_output
*o
= pan_get_so(&xfb
->stream_output
, loc
);
1781 return o
->output_buffer
< max_xfb
;
1785 pan_emit_general_varying(struct mali_attribute_packed
*out
,
1786 struct panfrost_shader_state
*other
,
1787 struct panfrost_shader_state
*xfb
,
1788 gl_varying_slot loc
,
1789 enum mali_format format
,
1792 unsigned *gen_offsets
,
1793 enum mali_format
*gen_formats
,
1794 unsigned *gen_stride
,
1798 /* Check if we're linked */
1799 signed other_idx
= -1;
1801 for (unsigned j
= 0; j
< other
->varying_count
; ++j
) {
1802 if (other
->varyings_loc
[j
] == loc
) {
1808 if (other_idx
< 0) {
1809 pan_emit_vary_only(out
, present
, quirks
);
1813 unsigned offset
= gen_offsets
[other_idx
];
1816 /* We're linked, so allocate a space via a watermark allocation */
1817 enum mali_format alt
= other
->varyings
[other_idx
];
1819 /* Do interpolation at minimum precision */
1820 unsigned size_main
= pan_varying_size(format
);
1821 unsigned size_alt
= pan_varying_size(alt
);
1822 unsigned size
= MIN2(size_main
, size_alt
);
1824 /* If a varying is marked for XFB but not actually captured, we
1825 * should match the format to the format that would otherwise
1826 * be used for XFB, since dEQP checks for invariance here. It's
1827 * unclear if this is required by the spec. */
1829 if (xfb
->so_mask
& (1ull << loc
)) {
1830 struct pipe_stream_output
*o
= pan_get_so(&xfb
->stream_output
, loc
);
1831 format
= pan_xfb_format(format
, o
->num_components
);
1832 size
= pan_varying_size(format
);
1833 } else if (size
== size_alt
) {
1837 gen_offsets
[idx
] = *gen_stride
;
1838 gen_formats
[other_idx
] = format
;
1839 offset
= *gen_stride
;
1840 *gen_stride
+= size
;
1843 pan_emit_vary(out
, present
, PAN_VARY_GENERAL
, quirks
, format
, offset
);
1846 /* Higher-level wrapper around all of the above, classifying a varying into one
1847 * of the above types */
1850 panfrost_emit_varying(
1851 struct mali_attribute_packed
*out
,
1852 struct panfrost_shader_state
*stage
,
1853 struct panfrost_shader_state
*other
,
1854 struct panfrost_shader_state
*xfb
,
1857 unsigned *streamout_offsets
,
1859 unsigned *gen_offsets
,
1860 enum mali_format
*gen_formats
,
1861 unsigned *gen_stride
,
1866 gl_varying_slot loc
= stage
->varyings_loc
[idx
];
1867 enum mali_format format
= stage
->varyings
[idx
];
1869 /* Override format to match linkage */
1870 if (!should_alloc
&& gen_formats
[idx
])
1871 format
= gen_formats
[idx
];
1873 if (has_point_coord(stage
->point_sprite_mask
, loc
)) {
1874 pan_emit_vary_special(out
, present
, PAN_VARY_PNTCOORD
, quirks
);
1875 } else if (panfrost_xfb_captured(xfb
, loc
, max_xfb
)) {
1876 struct pipe_stream_output
*o
= pan_get_so(&xfb
->stream_output
, loc
);
1877 pan_emit_vary_xfb(out
, present
, max_xfb
, streamout_offsets
, quirks
, format
, *o
);
1878 } else if (loc
== VARYING_SLOT_POS
) {
1880 pan_emit_vary_special(out
, present
, PAN_VARY_FRAGCOORD
, quirks
);
1882 pan_emit_vary_special(out
, present
, PAN_VARY_POSITION
, quirks
);
1883 } else if (loc
== VARYING_SLOT_PSIZ
) {
1884 pan_emit_vary_special(out
, present
, PAN_VARY_PSIZ
, quirks
);
1885 } else if (loc
== VARYING_SLOT_PNTC
) {
1886 pan_emit_vary_special(out
, present
, PAN_VARY_PNTCOORD
, quirks
);
1887 } else if (loc
== VARYING_SLOT_FACE
) {
1888 pan_emit_vary_special(out
, present
, PAN_VARY_FACE
, quirks
);
1890 pan_emit_general_varying(out
, other
, xfb
, loc
, format
, present
,
1891 quirks
, gen_offsets
, gen_formats
, gen_stride
,
1897 pan_emit_special_input(struct mali_attribute_buffer_packed
*out
,
1899 enum pan_special_varying v
,
1902 if (present
& (1 << v
)) {
1903 unsigned idx
= pan_varying_index(present
, v
);
1905 pan_pack(out
+ idx
, ATTRIBUTE_BUFFER
, cfg
) {
1906 cfg
.special
= special
;
1913 panfrost_emit_varying_descriptor(struct panfrost_batch
*batch
,
1914 unsigned vertex_count
,
1915 struct mali_vertex_tiler_postfix
*vertex_postfix
,
1916 struct mali_vertex_tiler_postfix
*tiler_postfix
,
1917 union midgard_primitive_size
*primitive_size
)
1919 /* Load the shaders */
1920 struct panfrost_context
*ctx
= batch
->ctx
;
1921 struct panfrost_device
*dev
= pan_device(ctx
->base
.screen
);
1922 struct panfrost_shader_state
*vs
, *fs
;
1923 size_t vs_size
, fs_size
;
1925 /* Allocate the varying descriptor */
1927 vs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_VERTEX
);
1928 fs
= panfrost_get_shader_state(ctx
, PIPE_SHADER_FRAGMENT
);
1929 vs_size
= MALI_ATTRIBUTE_LENGTH
* vs
->varying_count
;
1930 fs_size
= MALI_ATTRIBUTE_LENGTH
* fs
->varying_count
;
1932 struct panfrost_transfer trans
= panfrost_pool_alloc_aligned(
1933 &batch
->pool
, vs_size
+ fs_size
, MALI_ATTRIBUTE_LENGTH
);
1935 struct pipe_stream_output_info
*so
= &vs
->stream_output
;
1936 unsigned present
= pan_varying_present(vs
, fs
, dev
->quirks
);
1938 /* Check if this varying is linked by us. This is the case for
1939 * general-purpose, non-captured varyings. If it is, link it. If it's
1940 * not, use the provided stream out information to determine the
1941 * offset, since it was already linked for us. */
1943 unsigned gen_offsets
[32];
1944 enum mali_format gen_formats
[32];
1945 memset(gen_offsets
, 0, sizeof(gen_offsets
));
1946 memset(gen_formats
, 0, sizeof(gen_formats
));
1948 unsigned gen_stride
= 0;
1949 assert(vs
->varying_count
< ARRAY_SIZE(gen_offsets
));
1950 assert(fs
->varying_count
< ARRAY_SIZE(gen_offsets
));
1952 unsigned streamout_offsets
[32];
1954 for (unsigned i
= 0; i
< ctx
->streamout
.num_targets
; ++i
) {
1955 streamout_offsets
[i
] = panfrost_streamout_offset(
1957 ctx
->streamout
.offsets
[i
],
1958 ctx
->streamout
.targets
[i
]);
1961 struct mali_attribute_packed
*ovs
= (struct mali_attribute_packed
*)trans
.cpu
;
1962 struct mali_attribute_packed
*ofs
= ovs
+ vs
->varying_count
;
1964 for (unsigned i
= 0; i
< vs
->varying_count
; i
++) {
1965 panfrost_emit_varying(ovs
+ i
, vs
, fs
, vs
, present
,
1966 ctx
->streamout
.num_targets
, streamout_offsets
,
1968 gen_offsets
, gen_formats
, &gen_stride
, i
, true, false);
1971 for (unsigned i
= 0; i
< fs
->varying_count
; i
++) {
1972 panfrost_emit_varying(ofs
+ i
, fs
, vs
, vs
, present
,
1973 ctx
->streamout
.num_targets
, streamout_offsets
,
1975 gen_offsets
, gen_formats
, &gen_stride
, i
, false, true);
1978 unsigned xfb_base
= pan_xfb_base(present
);
1979 struct panfrost_transfer T
= panfrost_pool_alloc_aligned(&batch
->pool
,
1980 MALI_ATTRIBUTE_BUFFER_LENGTH
* (xfb_base
+ ctx
->streamout
.num_targets
),
1981 MALI_ATTRIBUTE_BUFFER_LENGTH
* 2);
1982 struct mali_attribute_buffer_packed
*varyings
=
1983 (struct mali_attribute_buffer_packed
*) T
.cpu
;
1985 /* Emit the stream out buffers */
1987 unsigned out_count
= u_stream_outputs_for_vertices(ctx
->active_prim
,
1990 for (unsigned i
= 0; i
< ctx
->streamout
.num_targets
; ++i
) {
1991 panfrost_emit_streamout(batch
, &varyings
[xfb_base
+ i
],
1993 ctx
->streamout
.offsets
[i
],
1995 ctx
->streamout
.targets
[i
]);
1998 panfrost_emit_varyings(batch
,
1999 &varyings
[pan_varying_index(present
, PAN_VARY_GENERAL
)],
2000 gen_stride
, vertex_count
);
2002 /* fp32 vec4 gl_Position */
2003 tiler_postfix
->position_varying
= panfrost_emit_varyings(batch
,
2004 &varyings
[pan_varying_index(present
, PAN_VARY_POSITION
)],
2005 sizeof(float) * 4, vertex_count
);
2007 if (present
& (1 << PAN_VARY_PSIZ
)) {
2008 primitive_size
->pointer
= panfrost_emit_varyings(batch
,
2009 &varyings
[pan_varying_index(present
, PAN_VARY_PSIZ
)],
2013 pan_emit_special_input(varyings
, present
, PAN_VARY_PNTCOORD
, MALI_ATTRIBUTE_SPECIAL_POINT_COORD
);
2014 pan_emit_special_input(varyings
, present
, PAN_VARY_FACE
, MALI_ATTRIBUTE_SPECIAL_FRONT_FACING
);
2015 pan_emit_special_input(varyings
, present
, PAN_VARY_FRAGCOORD
, MALI_ATTRIBUTE_SPECIAL_FRAG_COORD
);
2017 vertex_postfix
->varyings
= T
.gpu
;
2018 tiler_postfix
->varyings
= T
.gpu
;
2020 vertex_postfix
->varying_meta
= trans
.gpu
;
2021 tiler_postfix
->varying_meta
= trans
.gpu
+ vs_size
;
2025 panfrost_emit_vertex_tiler_jobs(struct panfrost_batch
*batch
,
2026 struct mali_vertex_tiler_prefix
*vertex_prefix
,
2027 struct mali_vertex_tiler_postfix
*vertex_postfix
,
2028 struct mali_vertex_tiler_prefix
*tiler_prefix
,
2029 struct mali_vertex_tiler_postfix
*tiler_postfix
,
2030 union midgard_primitive_size
*primitive_size
)
2032 struct panfrost_context
*ctx
= batch
->ctx
;
2033 struct panfrost_device
*device
= pan_device(ctx
->base
.screen
);
2034 bool wallpapering
= ctx
->wallpaper_batch
&& batch
->scoreboard
.tiler_dep
;
2035 struct bifrost_payload_vertex bifrost_vertex
= {0,};
2036 struct bifrost_payload_tiler bifrost_tiler
= {0,};
2037 struct midgard_payload_vertex_tiler midgard_vertex
= {0,};
2038 struct midgard_payload_vertex_tiler midgard_tiler
= {0,};
2040 size_t vp_size
, tp_size
;
2042 if (device
->quirks
& IS_BIFROST
) {
2043 bifrost_vertex
.prefix
= *vertex_prefix
;
2044 bifrost_vertex
.postfix
= *vertex_postfix
;
2045 vp
= &bifrost_vertex
;
2046 vp_size
= sizeof(bifrost_vertex
);
2048 bifrost_tiler
.prefix
= *tiler_prefix
;
2049 bifrost_tiler
.tiler
.primitive_size
= *primitive_size
;
2050 bifrost_tiler
.tiler
.tiler_meta
= panfrost_batch_get_tiler_meta(batch
, ~0);
2051 bifrost_tiler
.postfix
= *tiler_postfix
;
2052 tp
= &bifrost_tiler
;
2053 tp_size
= sizeof(bifrost_tiler
);
2055 midgard_vertex
.prefix
= *vertex_prefix
;
2056 midgard_vertex
.postfix
= *vertex_postfix
;
2057 vp
= &midgard_vertex
;
2058 vp_size
= sizeof(midgard_vertex
);
2060 midgard_tiler
.prefix
= *tiler_prefix
;
2061 midgard_tiler
.postfix
= *tiler_postfix
;
2062 midgard_tiler
.primitive_size
= *primitive_size
;
2063 tp
= &midgard_tiler
;
2064 tp_size
= sizeof(midgard_tiler
);
2068 /* Inject in reverse order, with "predicted" job indices.
2069 * THIS IS A HACK XXX */
2070 panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_TILER
, false,
2071 batch
->scoreboard
.job_index
+ 2, tp
, tp_size
, true);
2072 panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_VERTEX
, false, 0,
2077 /* If rasterizer discard is enable, only submit the vertex */
2079 unsigned vertex
= panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_VERTEX
, false, 0,
2080 vp
, vp_size
, false);
2082 if (ctx
->rasterizer
->base
.rasterizer_discard
)
2085 panfrost_new_job(&batch
->pool
, &batch
->scoreboard
, MALI_JOB_TYPE_TILER
, false, vertex
, tp
, tp_size
,
2089 /* TODO: stop hardcoding this */
2091 panfrost_emit_sample_locations(struct panfrost_batch
*batch
)
2093 uint16_t locations
[] = {
2144 return panfrost_pool_upload_aligned(&batch
->pool
, locations
, 96 * sizeof(uint16_t), 64);