2 * © Copyright 2018 Alyssa Rosenzweig
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
28 #include "pan_context.h"
29 #include "pan_format.h"
31 #include "util/macros.h"
32 #include "util/u_format.h"
33 #include "util/u_inlines.h"
34 #include "util/u_upload_mgr.h"
35 #include "util/u_memory.h"
36 #include "util/u_vbuf.h"
37 #include "util/half_float.h"
38 #include "util/u_helpers.h"
39 #include "util/u_format.h"
40 #include "util/u_prim_restart.h"
41 #include "indices/u_primconvert.h"
42 #include "tgsi/tgsi_parse.h"
43 #include "util/u_math.h"
45 #include "pan_screen.h"
46 #include "pan_blending.h"
47 #include "pan_blend_shaders.h"
49 #include "pan_tiler.h"
51 /* Do not actually send anything to the GPU; merely generate the cmdstream as fast as possible. Disables framebuffer writes */
54 static enum mali_job_type
55 panfrost_job_type_for_pipe(enum pipe_shader_type type
) {
58 case PIPE_SHADER_VERTEX
:
59 return JOB_TYPE_VERTEX
;
61 case PIPE_SHADER_FRAGMENT
:
62 /* Note: JOB_TYPE_FRAGMENT is different.
63 * JOB_TYPE_FRAGMENT actually executes the
64 * fragment shader, but JOB_TYPE_TILER is how you
66 return JOB_TYPE_TILER
;
68 case PIPE_SHADER_GEOMETRY
:
69 return JOB_TYPE_GEOMETRY
;
71 case PIPE_SHADER_COMPUTE
:
72 return JOB_TYPE_COMPUTE
;
75 unreachable("Unsupported shader stage");
79 /* Framebuffer descriptor */
81 static struct midgard_tiler_descriptor
82 panfrost_emit_midg_tiler(
83 struct panfrost_context
*ctx
,
86 unsigned vertex_count
)
88 struct midgard_tiler_descriptor t
= {};
91 panfrost_choose_hierarchy_mask(width
, height
, vertex_count
);
93 /* Compute the polygon header size and use that to offset the body */
95 unsigned header_size
= panfrost_tiler_header_size(
96 width
, height
, t
.hierarchy_mask
);
98 unsigned body_size
= panfrost_tiler_body_size(
99 width
, height
, t
.hierarchy_mask
);
103 if (t
.hierarchy_mask
) {
104 assert(ctx
->tiler_polygon_list
.bo
->size
>= (header_size
+ body_size
));
106 /* Specify allocated tiler structures */
107 t
.polygon_list
= ctx
->tiler_polygon_list
.bo
->gpu
;
109 /* Allow the entire tiler heap */
110 t
.heap_start
= ctx
->tiler_heap
.bo
->gpu
;
112 ctx
->tiler_heap
.bo
->gpu
+ ctx
->tiler_heap
.bo
->size
;
114 /* The tiler is disabled, so don't allow the tiler heap */
115 t
.heap_start
= ctx
->tiler_heap
.bo
->gpu
;
116 t
.heap_end
= t
.heap_start
;
118 /* Use a dummy polygon list */
119 t
.polygon_list
= ctx
->tiler_dummy
.bo
->gpu
;
121 /* Also, set a "tiler disabled?" flag? */
122 t
.hierarchy_mask
|= 0x1000;
125 t
.polygon_list_body
=
126 t
.polygon_list
+ header_size
;
128 t
.polygon_list_size
=
129 header_size
+ body_size
;
134 struct mali_single_framebuffer
135 panfrost_emit_sfbd(struct panfrost_context
*ctx
, unsigned vertex_count
)
137 unsigned width
= ctx
->pipe_framebuffer
.width
;
138 unsigned height
= ctx
->pipe_framebuffer
.height
;
140 struct mali_single_framebuffer framebuffer
= {
141 .width
= MALI_POSITIVE(width
),
142 .height
= MALI_POSITIVE(height
),
144 .format
= 0x30000000,
145 .clear_flags
= 0x1000,
146 .unknown_address_0
= ctx
->scratchpad
.bo
->gpu
,
147 .tiler
= panfrost_emit_midg_tiler(ctx
,
148 width
, height
, vertex_count
),
154 struct bifrost_framebuffer
155 panfrost_emit_mfbd(struct panfrost_context
*ctx
, unsigned vertex_count
)
157 unsigned width
= ctx
->pipe_framebuffer
.width
;
158 unsigned height
= ctx
->pipe_framebuffer
.height
;
160 struct bifrost_framebuffer framebuffer
= {
161 .unk0
= 0x1e5, /* 1e4 if no spill */
162 .width1
= MALI_POSITIVE(width
),
163 .height1
= MALI_POSITIVE(height
),
164 .width2
= MALI_POSITIVE(width
),
165 .height2
= MALI_POSITIVE(height
),
169 .rt_count_1
= MALI_POSITIVE(ctx
->pipe_framebuffer
.nr_cbufs
),
174 .scratchpad
= ctx
->scratchpad
.bo
->gpu
,
175 .tiler
= panfrost_emit_midg_tiler(ctx
,
176 width
, height
, vertex_count
)
182 /* Are we currently rendering to the screen (rather than an FBO)? */
185 panfrost_is_scanout(struct panfrost_context
*ctx
)
187 /* If there is no color buffer, it's an FBO */
188 if (ctx
->pipe_framebuffer
.nr_cbufs
!= 1)
191 /* If we're too early that no framebuffer was sent, it's scanout */
192 if (!ctx
->pipe_framebuffer
.cbufs
[0])
195 return ctx
->pipe_framebuffer
.cbufs
[0]->texture
->bind
& PIPE_BIND_DISPLAY_TARGET
||
196 ctx
->pipe_framebuffer
.cbufs
[0]->texture
->bind
& PIPE_BIND_SCANOUT
||
197 ctx
->pipe_framebuffer
.cbufs
[0]->texture
->bind
& PIPE_BIND_SHARED
;
202 struct pipe_context
*pipe
,
204 const union pipe_color_union
*color
,
205 double depth
, unsigned stencil
)
207 struct panfrost_context
*ctx
= pan_context(pipe
);
208 struct panfrost_job
*job
= panfrost_get_job_for_fbo(ctx
);
210 panfrost_job_clear(ctx
, job
, buffers
, color
, depth
, stencil
);
214 panfrost_attach_vt_mfbd(struct panfrost_context
*ctx
)
216 return panfrost_upload_transient(ctx
, &ctx
->vt_framebuffer_mfbd
, sizeof(ctx
->vt_framebuffer_mfbd
)) | MALI_MFBD
;
220 panfrost_attach_vt_sfbd(struct panfrost_context
*ctx
)
222 return panfrost_upload_transient(ctx
, &ctx
->vt_framebuffer_sfbd
, sizeof(ctx
->vt_framebuffer_sfbd
)) | MALI_SFBD
;
226 panfrost_attach_vt_framebuffer(struct panfrost_context
*ctx
, bool skippable
)
228 /* Skip the attach if we can */
230 if (skippable
&& ctx
->payloads
[PIPE_SHADER_VERTEX
].postfix
.framebuffer
) {
231 assert(ctx
->payloads
[PIPE_SHADER_FRAGMENT
].postfix
.framebuffer
);
235 struct panfrost_screen
*screen
= pan_screen(ctx
->base
.screen
);
236 mali_ptr framebuffer
= screen
->require_sfbd
?
237 panfrost_attach_vt_sfbd(ctx
) :
238 panfrost_attach_vt_mfbd(ctx
);
240 for (unsigned i
= 0; i
< PIPE_SHADER_TYPES
; ++i
)
241 ctx
->payloads
[i
].postfix
.framebuffer
= framebuffer
;
244 /* Reset per-frame context, called on context initialisation as well as after
245 * flushing a frame */
248 panfrost_invalidate_frame(struct panfrost_context
*ctx
)
250 struct panfrost_screen
*screen
= pan_screen(ctx
->base
.screen
);
252 if (screen
->require_sfbd
)
253 ctx
->vt_framebuffer_sfbd
= panfrost_emit_sfbd(ctx
, ~0);
255 ctx
->vt_framebuffer_mfbd
= panfrost_emit_mfbd(ctx
, ~0);
257 for (unsigned i
= 0; i
< PIPE_SHADER_TYPES
; ++i
)
258 ctx
->payloads
[i
].postfix
.framebuffer
= 0;
261 ctx
->dirty
|= PAN_DIRTY_RASTERIZER
;
264 ctx
->dirty
|= PAN_DIRTY_SAMPLERS
| PAN_DIRTY_TEXTURES
;
267 /* In practice, every field of these payloads should be configurable
268 * arbitrarily, which means these functions are basically catch-all's for
269 * as-of-yet unwavering unknowns */
272 panfrost_emit_vertex_payload(struct panfrost_context
*ctx
)
274 /* 0x2 bit clear on 32-bit T6XX */
276 struct midgard_payload_vertex_tiler payload
= {
277 .gl_enables
= 0x4 | 0x2,
280 /* Vertex and compute are closely coupled, so share a payload */
282 memcpy(&ctx
->payloads
[PIPE_SHADER_VERTEX
], &payload
, sizeof(payload
));
283 memcpy(&ctx
->payloads
[PIPE_SHADER_COMPUTE
], &payload
, sizeof(payload
));
287 panfrost_emit_tiler_payload(struct panfrost_context
*ctx
)
289 struct midgard_payload_vertex_tiler payload
= {
291 .zero1
= 0xffff, /* Why is this only seen on test-quad-textured? */
295 memcpy(&ctx
->payloads
[PIPE_SHADER_FRAGMENT
], &payload
, sizeof(payload
));
299 translate_tex_wrap(enum pipe_tex_wrap w
)
302 case PIPE_TEX_WRAP_REPEAT
:
303 return MALI_WRAP_REPEAT
;
305 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
:
306 return MALI_WRAP_CLAMP_TO_EDGE
;
308 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
:
309 return MALI_WRAP_CLAMP_TO_BORDER
;
311 case PIPE_TEX_WRAP_MIRROR_REPEAT
:
312 return MALI_WRAP_MIRRORED_REPEAT
;
315 unreachable("Invalid wrap");
320 panfrost_translate_compare_func(enum pipe_compare_func in
)
323 case PIPE_FUNC_NEVER
:
324 return MALI_FUNC_NEVER
;
327 return MALI_FUNC_LESS
;
329 case PIPE_FUNC_EQUAL
:
330 return MALI_FUNC_EQUAL
;
332 case PIPE_FUNC_LEQUAL
:
333 return MALI_FUNC_LEQUAL
;
335 case PIPE_FUNC_GREATER
:
336 return MALI_FUNC_GREATER
;
338 case PIPE_FUNC_NOTEQUAL
:
339 return MALI_FUNC_NOTEQUAL
;
341 case PIPE_FUNC_GEQUAL
:
342 return MALI_FUNC_GEQUAL
;
344 case PIPE_FUNC_ALWAYS
:
345 return MALI_FUNC_ALWAYS
;
348 unreachable("Invalid func");
353 panfrost_translate_alt_compare_func(enum pipe_compare_func in
)
356 case PIPE_FUNC_NEVER
:
357 return MALI_ALT_FUNC_NEVER
;
360 return MALI_ALT_FUNC_LESS
;
362 case PIPE_FUNC_EQUAL
:
363 return MALI_ALT_FUNC_EQUAL
;
365 case PIPE_FUNC_LEQUAL
:
366 return MALI_ALT_FUNC_LEQUAL
;
368 case PIPE_FUNC_GREATER
:
369 return MALI_ALT_FUNC_GREATER
;
371 case PIPE_FUNC_NOTEQUAL
:
372 return MALI_ALT_FUNC_NOTEQUAL
;
374 case PIPE_FUNC_GEQUAL
:
375 return MALI_ALT_FUNC_GEQUAL
;
377 case PIPE_FUNC_ALWAYS
:
378 return MALI_ALT_FUNC_ALWAYS
;
381 unreachable("Invalid alt func");
386 panfrost_translate_stencil_op(enum pipe_stencil_op in
)
389 case PIPE_STENCIL_OP_KEEP
:
390 return MALI_STENCIL_KEEP
;
392 case PIPE_STENCIL_OP_ZERO
:
393 return MALI_STENCIL_ZERO
;
395 case PIPE_STENCIL_OP_REPLACE
:
396 return MALI_STENCIL_REPLACE
;
398 case PIPE_STENCIL_OP_INCR
:
399 return MALI_STENCIL_INCR
;
401 case PIPE_STENCIL_OP_DECR
:
402 return MALI_STENCIL_DECR
;
404 case PIPE_STENCIL_OP_INCR_WRAP
:
405 return MALI_STENCIL_INCR_WRAP
;
407 case PIPE_STENCIL_OP_DECR_WRAP
:
408 return MALI_STENCIL_DECR_WRAP
;
410 case PIPE_STENCIL_OP_INVERT
:
411 return MALI_STENCIL_INVERT
;
414 unreachable("Invalid stencil op");
419 panfrost_make_stencil_state(const struct pipe_stencil_state
*in
, struct mali_stencil_test
*out
)
421 out
->ref
= 0; /* Gallium gets it from elsewhere */
423 out
->mask
= in
->valuemask
;
424 out
->func
= panfrost_translate_compare_func(in
->func
);
425 out
->sfail
= panfrost_translate_stencil_op(in
->fail_op
);
426 out
->dpfail
= panfrost_translate_stencil_op(in
->zfail_op
);
427 out
->dppass
= panfrost_translate_stencil_op(in
->zpass_op
);
431 panfrost_default_shader_backend(struct panfrost_context
*ctx
)
433 struct mali_shader_meta shader
= {
434 .alpha_coverage
= ~MALI_ALPHA_COVERAGE(0.000000),
436 .unknown2_3
= MALI_DEPTH_FUNC(MALI_FUNC_ALWAYS
) | 0x3010,
437 .unknown2_4
= MALI_NO_MSAA
| 0x4e0,
440 /* unknown2_4 has 0x10 bit set on T6XX. We don't know why this is
441 * required (independent of 32-bit/64-bit descriptors), or why it's not
442 * used on later GPU revisions. Otherwise, all shader jobs fault on
443 * these earlier chips (perhaps this is a chicken bit of some kind).
444 * More investigation is needed. */
447 shader
.unknown2_4
|= 0x10;
450 struct pipe_stencil_state default_stencil
= {
452 .func
= PIPE_FUNC_ALWAYS
,
453 .fail_op
= MALI_STENCIL_KEEP
,
454 .zfail_op
= MALI_STENCIL_KEEP
,
455 .zpass_op
= MALI_STENCIL_KEEP
,
460 panfrost_make_stencil_state(&default_stencil
, &shader
.stencil_front
);
461 shader
.stencil_mask_front
= default_stencil
.writemask
;
463 panfrost_make_stencil_state(&default_stencil
, &shader
.stencil_back
);
464 shader
.stencil_mask_back
= default_stencil
.writemask
;
466 if (default_stencil
.enabled
)
467 shader
.unknown2_4
|= MALI_STENCIL_TEST
;
469 memcpy(&ctx
->fragment_shader_core
, &shader
, sizeof(shader
));
472 /* Generates a vertex/tiler job. This is, in some sense, the heart of the
473 * graphics command stream. It should be called once per draw, accordding to
474 * presentations. Set is_tiler for "tiler" jobs (fragment shader jobs, but in
475 * Mali parlance, "fragment" refers to framebuffer writeout). Clear it for
478 struct panfrost_transfer
479 panfrost_vertex_tiler_job(struct panfrost_context
*ctx
, bool is_tiler
)
481 struct mali_job_descriptor_header job
= {
482 .job_type
= is_tiler
? JOB_TYPE_TILER
: JOB_TYPE_VERTEX
,
483 .job_descriptor_size
= 1,
486 struct midgard_payload_vertex_tiler
*payload
= is_tiler
? &ctx
->payloads
[PIPE_SHADER_FRAGMENT
] : &ctx
->payloads
[PIPE_SHADER_VERTEX
];
488 struct panfrost_transfer transfer
= panfrost_allocate_transient(ctx
, sizeof(job
) + sizeof(*payload
));
489 memcpy(transfer
.cpu
, &job
, sizeof(job
));
490 memcpy(transfer
.cpu
+ sizeof(job
), payload
, sizeof(*payload
));
495 panfrost_emit_varyings(
496 struct panfrost_context
*ctx
,
497 union mali_attr
*slot
,
501 /* Fill out the descriptor */
502 slot
->stride
= stride
;
503 slot
->size
= stride
* count
;
504 slot
->shift
= slot
->extra_flags
= 0;
506 struct panfrost_transfer transfer
=
507 panfrost_allocate_transient(ctx
, slot
->size
);
509 slot
->elements
= transfer
.gpu
| MALI_ATTR_LINEAR
;
515 panfrost_emit_point_coord(union mali_attr
*slot
)
517 slot
->elements
= MALI_VARYING_POINT_COORD
| MALI_ATTR_LINEAR
;
518 slot
->stride
= slot
->size
= slot
->shift
= slot
->extra_flags
= 0;
522 panfrost_emit_front_face(union mali_attr
*slot
)
524 slot
->elements
= MALI_VARYING_FRONT_FACING
| MALI_ATTR_INTERNAL
;
528 panfrost_emit_varying_descriptor(
529 struct panfrost_context
*ctx
,
530 unsigned vertex_count
)
532 /* Load the shaders */
534 struct panfrost_shader_state
*vs
= &ctx
->shader
[PIPE_SHADER_VERTEX
]->variants
[ctx
->shader
[PIPE_SHADER_VERTEX
]->active_variant
];
535 struct panfrost_shader_state
*fs
= &ctx
->shader
[PIPE_SHADER_FRAGMENT
]->variants
[ctx
->shader
[PIPE_SHADER_FRAGMENT
]->active_variant
];
536 unsigned int num_gen_varyings
= 0;
538 /* Allocate the varying descriptor */
540 size_t vs_size
= sizeof(struct mali_attr_meta
) * vs
->tripipe
->varying_count
;
541 size_t fs_size
= sizeof(struct mali_attr_meta
) * fs
->tripipe
->varying_count
;
543 struct panfrost_transfer trans
= panfrost_allocate_transient(ctx
,
547 * Assign ->src_offset now that we know about all the general purpose
548 * varyings that will be used by the fragment and vertex shaders.
550 for (unsigned i
= 0; i
< vs
->tripipe
->varying_count
; i
++) {
552 * General purpose varyings have ->index set to 0, skip other
555 if (vs
->varyings
[i
].index
)
558 vs
->varyings
[i
].src_offset
= 16 * (num_gen_varyings
++);
561 for (unsigned i
= 0; i
< fs
->tripipe
->varying_count
; i
++) {
564 /* If we have a point sprite replacement, handle that here. We
565 * have to translate location first. TODO: Flip y in shader.
566 * We're already keying ... just time crunch .. */
568 unsigned loc
= fs
->varyings_loc
[i
];
570 (loc
>= VARYING_SLOT_VAR0
) ? (loc
- VARYING_SLOT_VAR0
) :
571 (loc
== VARYING_SLOT_PNTC
) ? 8 :
574 if (~pnt_loc
&& fs
->point_sprite_mask
& (1 << pnt_loc
)) {
575 /* gl_PointCoord index by convention */
576 fs
->varyings
[i
].index
= 3;
577 fs
->reads_point_coord
= true;
579 /* Swizzle out the z/w to 0/1 */
580 fs
->varyings
[i
].format
= MALI_RG16F
;
581 fs
->varyings
[i
].swizzle
=
582 panfrost_get_default_swizzle(2);
587 if (fs
->varyings
[i
].index
)
591 * Re-use the VS general purpose varying pos if it exists,
592 * create a new one otherwise.
594 for (j
= 0; j
< vs
->tripipe
->varying_count
; j
++) {
595 if (fs
->varyings_loc
[i
] == vs
->varyings_loc
[j
])
599 if (j
< vs
->tripipe
->varying_count
)
600 fs
->varyings
[i
].src_offset
= vs
->varyings
[j
].src_offset
;
602 fs
->varyings
[i
].src_offset
= 16 * (num_gen_varyings
++);
605 memcpy(trans
.cpu
, vs
->varyings
, vs_size
);
606 memcpy(trans
.cpu
+ vs_size
, fs
->varyings
, fs_size
);
608 ctx
->payloads
[PIPE_SHADER_VERTEX
].postfix
.varying_meta
= trans
.gpu
;
609 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].postfix
.varying_meta
= trans
.gpu
+ vs_size
;
611 /* Buffer indices must be in this order per our convention */
612 union mali_attr varyings
[PIPE_MAX_ATTRIBS
];
615 panfrost_emit_varyings(ctx
, &varyings
[idx
++], num_gen_varyings
* 16,
618 /* fp32 vec4 gl_Position */
619 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].postfix
.position_varying
=
620 panfrost_emit_varyings(ctx
, &varyings
[idx
++],
621 sizeof(float) * 4, vertex_count
);
624 if (vs
->writes_point_size
|| fs
->reads_point_coord
) {
625 /* fp16 vec1 gl_PointSize */
626 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].primitive_size
.pointer
=
627 panfrost_emit_varyings(ctx
, &varyings
[idx
++],
629 } else if (fs
->reads_face
) {
630 /* Dummy to advance index */
634 if (fs
->reads_point_coord
) {
635 /* Special descriptor */
636 panfrost_emit_point_coord(&varyings
[idx
++]);
637 } else if (fs
->reads_face
) {
641 if (fs
->reads_face
) {
642 panfrost_emit_front_face(&varyings
[idx
++]);
645 mali_ptr varyings_p
= panfrost_upload_transient(ctx
, &varyings
, idx
* sizeof(union mali_attr
));
646 ctx
->payloads
[PIPE_SHADER_VERTEX
].postfix
.varyings
= varyings_p
;
647 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].postfix
.varyings
= varyings_p
;
651 panfrost_vertex_buffer_address(struct panfrost_context
*ctx
, unsigned i
)
653 struct pipe_vertex_buffer
*buf
= &ctx
->vertex_buffers
[i
];
654 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) (buf
->buffer
.resource
);
656 return rsrc
->bo
->gpu
+ buf
->buffer_offset
;
660 panfrost_writes_point_size(struct panfrost_context
*ctx
)
662 assert(ctx
->shader
[PIPE_SHADER_VERTEX
]);
663 struct panfrost_shader_state
*vs
= &ctx
->shader
[PIPE_SHADER_VERTEX
]->variants
[ctx
->shader
[PIPE_SHADER_VERTEX
]->active_variant
];
665 return vs
->writes_point_size
&& ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
.draw_mode
== MALI_POINTS
;
668 /* Stage the attribute descriptors so we can adjust src_offset
669 * to let BOs align nicely */
672 panfrost_stage_attributes(struct panfrost_context
*ctx
)
674 struct panfrost_vertex_state
*so
= ctx
->vertex
;
676 size_t sz
= sizeof(struct mali_attr_meta
) * so
->num_elements
;
677 struct panfrost_transfer transfer
= panfrost_allocate_transient(ctx
, sz
);
678 struct mali_attr_meta
*target
= (struct mali_attr_meta
*) transfer
.cpu
;
680 /* Copy as-is for the first pass */
681 memcpy(target
, so
->hw
, sz
);
683 /* Fixup offsets for the second pass. Recall that the hardware
684 * calculates attribute addresses as:
686 * addr = base + (stride * vtx) + src_offset;
688 * However, on Mali, base must be aligned to 64-bytes, so we
691 * base' = base & ~63 = base - (base & 63)
693 * To compensate when using base' (see emit_vertex_data), we have
694 * to adjust src_offset by the masked off piece:
696 * addr' = base' + (stride * vtx) + (src_offset + (base & 63))
697 * = base - (base & 63) + (stride * vtx) + src_offset + (base & 63)
698 * = base + (stride * vtx) + src_offset
704 unsigned start
= ctx
->payloads
[PIPE_SHADER_VERTEX
].draw_start
;
706 for (unsigned i
= 0; i
< so
->num_elements
; ++i
) {
707 unsigned vbi
= so
->pipe
[i
].vertex_buffer_index
;
708 struct pipe_vertex_buffer
*buf
= &ctx
->vertex_buffers
[vbi
];
709 mali_ptr addr
= panfrost_vertex_buffer_address(ctx
, vbi
);
711 /* Adjust by the masked off bits of the offset */
712 target
[i
].src_offset
+= (addr
& 63);
714 /* Also, somewhat obscurely per-instance data needs to be
715 * offset in response to a delayed start in an indexed draw */
717 if (so
->pipe
[i
].instance_divisor
&& ctx
->instance_count
> 1 && start
) {
718 target
[i
].src_offset
-= buf
->stride
* start
;
724 ctx
->payloads
[PIPE_SHADER_VERTEX
].postfix
.attribute_meta
= transfer
.gpu
;
728 panfrost_upload_sampler_descriptors(struct panfrost_context
*ctx
)
730 size_t desc_size
= sizeof(struct mali_sampler_descriptor
);
732 for (int t
= 0; t
<= PIPE_SHADER_FRAGMENT
; ++t
) {
735 if (ctx
->sampler_count
[t
] && ctx
->sampler_view_count
[t
]) {
736 size_t transfer_size
= desc_size
* ctx
->sampler_count
[t
];
738 struct panfrost_transfer transfer
=
739 panfrost_allocate_transient(ctx
, transfer_size
);
741 struct mali_sampler_descriptor
*desc
=
742 (struct mali_sampler_descriptor
*) transfer
.cpu
;
744 for (int i
= 0; i
< ctx
->sampler_count
[t
]; ++i
)
745 desc
[i
] = ctx
->samplers
[t
][i
]->hw
;
747 upload
= transfer
.gpu
;
750 ctx
->payloads
[t
].postfix
.sampler_descriptor
= upload
;
755 panfrost_layout_for_texture(struct panfrost_resource
*rsrc
, bool manual_stride
)
757 /* TODO: other linear depth textures */
758 bool is_depth
= rsrc
->base
.format
== PIPE_FORMAT_Z32_UNORM
;
760 unsigned usage2_layout
= 0x10;
762 switch (rsrc
->layout
) {
764 usage2_layout
|= 0x8 | 0x4;
767 usage2_layout
|= 0x1;
770 usage2_layout
|= is_depth
? 0x1 : 0x2;
778 usage2_layout
|= MALI_TEX_MANUAL_STRIDE
;
780 return usage2_layout
;
785 struct panfrost_context
*ctx
,
786 struct panfrost_sampler_view
*view
)
791 struct pipe_sampler_view
*pview
= &view
->base
;
792 struct panfrost_resource
*rsrc
= pan_resource(pview
->texture
);
794 /* Do we interleave an explicit stride with every element? */
796 bool has_manual_stride
= view
->manual_stride
;
798 /* For easy access */
800 assert(pview
->target
!= PIPE_BUFFER
);
801 unsigned first_level
= pview
->u
.tex
.first_level
;
802 unsigned last_level
= pview
->u
.tex
.last_level
;
803 unsigned first_layer
= pview
->u
.tex
.first_layer
;
804 unsigned last_layer
= pview
->u
.tex
.last_layer
;
806 /* Lower-bit is set when sampling from colour AFBC */
807 bool is_afbc
= rsrc
->layout
== PAN_AFBC
;
808 bool is_zs
= rsrc
->base
.bind
& PIPE_BIND_DEPTH_STENCIL
;
809 unsigned afbc_bit
= (is_afbc
&& !is_zs
) ? 1 : 0;
811 /* Add the BO to the job so it's retained until the job is done. */
812 struct panfrost_job
*job
= panfrost_get_job_for_fbo(ctx
);
813 panfrost_job_add_bo(job
, rsrc
->bo
);
815 /* Add the usage flags in, since they can change across the CSO
816 * lifetime due to layout switches */
818 view
->hw
.format
.usage2
= panfrost_layout_for_texture(rsrc
, has_manual_stride
);
820 /* Inject the addresses in, interleaving mip levels, cube faces, and
821 * strides in that order */
825 for (unsigned l
= first_level
; l
<= last_level
; ++l
) {
826 for (unsigned f
= first_layer
; f
<= last_layer
; ++f
) {
828 view
->hw
.payload
[idx
++] =
829 panfrost_get_texture_address(rsrc
, l
, f
) + afbc_bit
;
831 if (has_manual_stride
) {
832 view
->hw
.payload
[idx
++] =
833 rsrc
->slices
[l
].stride
;
838 return panfrost_upload_transient(ctx
, &view
->hw
,
839 sizeof(struct mali_texture_descriptor
));
843 panfrost_upload_texture_descriptors(struct panfrost_context
*ctx
)
845 for (int t
= 0; t
<= PIPE_SHADER_FRAGMENT
; ++t
) {
846 mali_ptr trampoline
= 0;
848 if (ctx
->sampler_view_count
[t
]) {
849 uint64_t trampolines
[PIPE_MAX_SHADER_SAMPLER_VIEWS
];
851 for (int i
= 0; i
< ctx
->sampler_view_count
[t
]; ++i
)
853 panfrost_upload_tex(ctx
, ctx
->sampler_views
[t
][i
]);
855 trampoline
= panfrost_upload_transient(ctx
, trampolines
, sizeof(uint64_t) * ctx
->sampler_view_count
[t
]);
858 ctx
->payloads
[t
].postfix
.texture_trampoline
= trampoline
;
862 struct sysval_uniform
{
870 static void panfrost_upload_viewport_scale_sysval(struct panfrost_context
*ctx
,
871 struct sysval_uniform
*uniform
)
873 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
875 uniform
->f
[0] = vp
->scale
[0];
876 uniform
->f
[1] = vp
->scale
[1];
877 uniform
->f
[2] = vp
->scale
[2];
880 static void panfrost_upload_viewport_offset_sysval(struct panfrost_context
*ctx
,
881 struct sysval_uniform
*uniform
)
883 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
885 uniform
->f
[0] = vp
->translate
[0];
886 uniform
->f
[1] = vp
->translate
[1];
887 uniform
->f
[2] = vp
->translate
[2];
890 static void panfrost_upload_txs_sysval(struct panfrost_context
*ctx
,
891 enum pipe_shader_type st
,
892 unsigned int sysvalid
,
893 struct sysval_uniform
*uniform
)
895 unsigned texidx
= PAN_SYSVAL_ID_TO_TXS_TEX_IDX(sysvalid
);
896 unsigned dim
= PAN_SYSVAL_ID_TO_TXS_DIM(sysvalid
);
897 bool is_array
= PAN_SYSVAL_ID_TO_TXS_IS_ARRAY(sysvalid
);
898 struct pipe_sampler_view
*tex
= &ctx
->sampler_views
[st
][texidx
]->base
;
901 uniform
->i
[0] = u_minify(tex
->texture
->width0
, tex
->u
.tex
.first_level
);
904 uniform
->i
[1] = u_minify(tex
->texture
->height0
,
905 tex
->u
.tex
.first_level
);
908 uniform
->i
[2] = u_minify(tex
->texture
->depth0
,
909 tex
->u
.tex
.first_level
);
912 uniform
->i
[dim
] = tex
->texture
->array_size
;
915 static void panfrost_upload_sysvals(struct panfrost_context
*ctx
, void *buf
,
916 struct panfrost_shader_state
*ss
,
917 enum pipe_shader_type st
)
919 struct sysval_uniform
*uniforms
= (void *)buf
;
921 for (unsigned i
= 0; i
< ss
->sysval_count
; ++i
) {
922 int sysval
= ss
->sysval
[i
];
924 switch (PAN_SYSVAL_TYPE(sysval
)) {
925 case PAN_SYSVAL_VIEWPORT_SCALE
:
926 panfrost_upload_viewport_scale_sysval(ctx
, &uniforms
[i
]);
928 case PAN_SYSVAL_VIEWPORT_OFFSET
:
929 panfrost_upload_viewport_offset_sysval(ctx
, &uniforms
[i
]);
931 case PAN_SYSVAL_TEXTURE_SIZE
:
932 panfrost_upload_txs_sysval(ctx
, st
, PAN_SYSVAL_ID(sysval
),
942 panfrost_map_constant_buffer_cpu(struct panfrost_constant_buffer
*buf
, unsigned index
)
944 struct pipe_constant_buffer
*cb
= &buf
->cb
[index
];
945 struct panfrost_resource
*rsrc
= pan_resource(cb
->buffer
);
948 return rsrc
->bo
->cpu
;
949 else if (cb
->user_buffer
)
950 return cb
->user_buffer
;
952 unreachable("No constant buffer");
956 panfrost_map_constant_buffer_gpu(
957 struct panfrost_context
*ctx
,
958 struct panfrost_constant_buffer
*buf
,
961 struct pipe_constant_buffer
*cb
= &buf
->cb
[index
];
962 struct panfrost_resource
*rsrc
= pan_resource(cb
->buffer
);
965 return rsrc
->bo
->gpu
;
966 else if (cb
->user_buffer
)
967 return panfrost_upload_transient(ctx
, cb
->user_buffer
, cb
->buffer_size
);
969 unreachable("No constant buffer");
972 /* Compute number of UBOs active (more specifically, compute the highest UBO
973 * number addressable -- if there are gaps, include them in the count anyway).
974 * We always include UBO #0 in the count, since we *need* uniforms enabled for
978 panfrost_ubo_count(struct panfrost_context
*ctx
, enum pipe_shader_type stage
)
980 unsigned mask
= ctx
->constant_buffer
[stage
].enabled_mask
| 1;
981 return 32 - __builtin_clz(mask
);
984 /* Fixes up a shader state with current state, returning a GPU address to the
988 panfrost_patch_shader_state(
989 struct panfrost_context
*ctx
,
990 struct panfrost_shader_state
*ss
,
991 enum pipe_shader_type stage
,
994 ss
->tripipe
->texture_count
= ctx
->sampler_view_count
[stage
];
995 ss
->tripipe
->sampler_count
= ctx
->sampler_count
[stage
];
997 ss
->tripipe
->midgard1
.flags
= 0x220;
999 unsigned ubo_count
= panfrost_ubo_count(ctx
, stage
);
1000 ss
->tripipe
->midgard1
.uniform_buffer_count
= ubo_count
;
1002 /* We can't reuse over frames; that's not safe. The descriptor must be
1003 * transient uploaded */
1005 if (should_upload
) {
1006 return panfrost_upload_transient(ctx
,
1008 sizeof(struct mali_shader_meta
));
1011 /* If we don't need an upload, don't bother */
1017 panfrost_patch_shader_state_compute(
1018 struct panfrost_context
*ctx
,
1019 enum pipe_shader_type stage
,
1022 struct panfrost_shader_variants
*all
= ctx
->shader
[stage
];
1025 ctx
->payloads
[stage
].postfix
._shader_upper
= 0;
1029 struct panfrost_shader_state
*s
= &all
->variants
[all
->active_variant
];
1031 ctx
->payloads
[stage
].postfix
._shader_upper
=
1032 panfrost_patch_shader_state(ctx
, s
, stage
, should_upload
) >> 4;
1035 /* Go through dirty flags and actualise them in the cmdstream. */
1038 panfrost_emit_for_draw(struct panfrost_context
*ctx
, bool with_vertex_data
)
1040 struct panfrost_job
*job
= panfrost_get_job_for_fbo(ctx
);
1041 struct panfrost_screen
*screen
= pan_screen(ctx
->base
.screen
);
1043 panfrost_attach_vt_framebuffer(ctx
, true);
1045 if (with_vertex_data
) {
1046 panfrost_emit_vertex_data(job
);
1048 /* Varyings emitted for -all- geometry */
1049 unsigned total_count
= ctx
->padded_count
* ctx
->instance_count
;
1050 panfrost_emit_varying_descriptor(ctx
, total_count
);
1053 bool msaa
= ctx
->rasterizer
->base
.multisample
;
1055 if (ctx
->dirty
& PAN_DIRTY_RASTERIZER
) {
1056 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].gl_enables
= ctx
->rasterizer
->tiler_gl_enables
;
1058 /* TODO: Sample size */
1059 SET_BIT(ctx
->fragment_shader_core
.unknown2_3
, MALI_HAS_MSAA
, msaa
);
1060 SET_BIT(ctx
->fragment_shader_core
.unknown2_4
, MALI_NO_MSAA
, !msaa
);
1063 panfrost_job_set_requirements(ctx
, job
);
1065 if (ctx
->occlusion_query
) {
1066 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].gl_enables
|= MALI_OCCLUSION_QUERY
| MALI_OCCLUSION_PRECISE
;
1067 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].postfix
.occlusion_counter
= ctx
->occlusion_query
->transfer
.gpu
;
1070 panfrost_patch_shader_state_compute(ctx
, PIPE_SHADER_VERTEX
, true);
1071 panfrost_patch_shader_state_compute(ctx
, PIPE_SHADER_COMPUTE
, true);
1073 if (ctx
->dirty
& (PAN_DIRTY_RASTERIZER
| PAN_DIRTY_VS
)) {
1074 /* Check if we need to link the gl_PointSize varying */
1075 if (!panfrost_writes_point_size(ctx
)) {
1076 /* If the size is constant, write it out. Otherwise,
1077 * don't touch primitive_size (since we would clobber
1078 * the pointer there) */
1080 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].primitive_size
.constant
= ctx
->rasterizer
->base
.line_width
;
1084 /* TODO: Maybe dirty track FS, maybe not. For now, it's transient. */
1085 if (ctx
->shader
[PIPE_SHADER_FRAGMENT
])
1086 ctx
->dirty
|= PAN_DIRTY_FS
;
1088 if (ctx
->dirty
& PAN_DIRTY_FS
) {
1089 assert(ctx
->shader
[PIPE_SHADER_FRAGMENT
]);
1090 struct panfrost_shader_state
*variant
= &ctx
->shader
[PIPE_SHADER_FRAGMENT
]->variants
[ctx
->shader
[PIPE_SHADER_FRAGMENT
]->active_variant
];
1092 panfrost_patch_shader_state(ctx
, variant
, PIPE_SHADER_FRAGMENT
, false);
1094 #define COPY(name) ctx->fragment_shader_core.name = variant->tripipe->name
1097 COPY(attribute_count
);
1098 COPY(varying_count
);
1099 COPY(texture_count
);
1100 COPY(sampler_count
);
1101 COPY(sampler_count
);
1102 COPY(midgard1
.uniform_count
);
1103 COPY(midgard1
.uniform_buffer_count
);
1104 COPY(midgard1
.work_count
);
1105 COPY(midgard1
.flags
);
1106 COPY(midgard1
.unknown2
);
1110 /* Get blending setup */
1111 struct panfrost_blend_final blend
=
1112 panfrost_get_blend_for_context(ctx
, 0);
1114 /* If there is a blend shader, work registers are shared */
1116 if (blend
.is_shader
)
1117 ctx
->fragment_shader_core
.midgard1
.work_count
= /*MAX2(ctx->fragment_shader_core.midgard1.work_count, ctx->blend->blend_work_count)*/16;
1119 /* Set late due to depending on render state */
1120 unsigned flags
= ctx
->fragment_shader_core
.midgard1
.flags
;
1122 /* Depending on whether it's legal to in the given shader, we
1123 * try to enable early-z testing (or forward-pixel kill?) */
1125 if (!variant
->can_discard
)
1126 flags
|= MALI_EARLY_Z
;
1128 /* Any time texturing is used, derivatives are implicitly
1129 * calculated, so we need to enable helper invocations */
1131 if (variant
->helper_invocations
)
1132 flags
|= MALI_HELPER_INVOCATIONS
;
1134 ctx
->fragment_shader_core
.midgard1
.flags
= flags
;
1136 /* Assign the stencil refs late */
1138 unsigned front_ref
= ctx
->stencil_ref
.ref_value
[0];
1139 unsigned back_ref
= ctx
->stencil_ref
.ref_value
[1];
1140 bool back_enab
= ctx
->depth_stencil
->stencil
[1].enabled
;
1142 ctx
->fragment_shader_core
.stencil_front
.ref
= front_ref
;
1143 ctx
->fragment_shader_core
.stencil_back
.ref
= back_enab
? back_ref
: front_ref
;
1145 /* CAN_DISCARD should be set if the fragment shader possibly
1146 * contains a 'discard' instruction. It is likely this is
1147 * related to optimizations related to forward-pixel kill, as
1148 * per "Mali Performance 3: Is EGL_BUFFER_PRESERVED a good
1149 * thing?" by Peter Harris
1152 if (variant
->can_discard
) {
1153 ctx
->fragment_shader_core
.unknown2_3
|= MALI_CAN_DISCARD
;
1154 ctx
->fragment_shader_core
.midgard1
.flags
|= 0x400;
1157 /* Check if we're using the default blend descriptor (fast path) */
1161 (blend
.equation
.equation
->rgb_mode
== 0x122) &&
1162 (blend
.equation
.equation
->alpha_mode
== 0x122) &&
1163 (blend
.equation
.equation
->color_mask
== 0xf);
1165 /* Even on MFBD, the shader descriptor gets blend shaders. It's
1166 * *also* copied to the blend_meta appended (by convention),
1167 * but this is the field actually read by the hardware. (Or
1168 * maybe both are read...?) */
1170 if (blend
.is_shader
) {
1171 ctx
->fragment_shader_core
.blend
.shader
=
1174 ctx
->fragment_shader_core
.blend
.shader
= 0;
1177 if (screen
->require_sfbd
) {
1178 /* When only a single render target platform is used, the blend
1179 * information is inside the shader meta itself. We
1180 * additionally need to signal CAN_DISCARD for nontrivial blend
1181 * modes (so we're able to read back the destination buffer) */
1183 if (!blend
.is_shader
) {
1184 ctx
->fragment_shader_core
.blend
.equation
=
1185 *blend
.equation
.equation
;
1186 ctx
->fragment_shader_core
.blend
.constant
=
1187 blend
.equation
.constant
;
1191 ctx
->fragment_shader_core
.unknown2_3
|= MALI_CAN_DISCARD
;
1195 size_t size
= sizeof(struct mali_shader_meta
) + sizeof(struct midgard_blend_rt
);
1196 struct panfrost_transfer transfer
= panfrost_allocate_transient(ctx
, size
);
1197 memcpy(transfer
.cpu
, &ctx
->fragment_shader_core
, sizeof(struct mali_shader_meta
));
1199 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].postfix
._shader_upper
= (transfer
.gpu
) >> 4;
1201 if (!screen
->require_sfbd
) {
1202 /* Additional blend descriptor tacked on for jobs using MFBD */
1204 unsigned blend_count
= 0x200;
1206 if (blend
.is_shader
) {
1207 /* For a blend shader, the bottom nibble corresponds to
1208 * the number of work registers used, which signals the
1209 * -existence- of a blend shader */
1211 assert(blend
.shader
.work_count
>= 2);
1212 blend_count
|= MIN2(blend
.shader
.work_count
, 3);
1214 /* Otherwise, the bottom bit simply specifies if
1215 * blending (anything other than REPLACE) is enabled */
1222 struct midgard_blend_rt rts
[4];
1224 for (unsigned i
= 0; i
< ctx
->pipe_framebuffer
.nr_cbufs
; ++i
) {
1226 (ctx
->pipe_framebuffer
.nr_cbufs
> i
) &&
1227 (ctx
->pipe_framebuffer
.cbufs
[i
]) &&
1228 util_format_is_srgb(ctx
->pipe_framebuffer
.cbufs
[i
]->format
);
1230 rts
[i
].flags
= blend_count
;
1233 rts
[i
].flags
|= MALI_BLEND_SRGB
;
1235 if (!ctx
->blend
->base
.dither
)
1236 rts
[i
].flags
|= MALI_BLEND_NO_DITHER
;
1238 /* TODO: sRGB in blend shaders is currently
1239 * unimplemented. Contact me (Alyssa) if you're
1240 * interested in working on this. We have
1241 * native Midgard ops for helping here, but
1242 * they're not well-understood yet. */
1244 assert(!(is_srgb
&& blend
.is_shader
));
1246 if (blend
.is_shader
) {
1247 rts
[i
].blend
.shader
= blend
.shader
.gpu
;
1249 rts
[i
].blend
.equation
= *blend
.equation
.equation
;
1250 rts
[i
].blend
.constant
= blend
.equation
.constant
;
1254 memcpy(transfer
.cpu
+ sizeof(struct mali_shader_meta
), rts
, sizeof(rts
[0]) * 1);
1258 /* We stage to transient, so always dirty.. */
1260 panfrost_stage_attributes(ctx
);
1262 if (ctx
->dirty
& PAN_DIRTY_SAMPLERS
)
1263 panfrost_upload_sampler_descriptors(ctx
);
1265 if (ctx
->dirty
& PAN_DIRTY_TEXTURES
)
1266 panfrost_upload_texture_descriptors(ctx
);
1268 const struct pipe_viewport_state
*vp
= &ctx
->pipe_viewport
;
1270 for (int i
= 0; i
< PIPE_SHADER_TYPES
; ++i
) {
1271 struct panfrost_shader_variants
*all
= ctx
->shader
[i
];
1276 struct panfrost_constant_buffer
*buf
= &ctx
->constant_buffer
[i
];
1278 struct panfrost_shader_state
*ss
= &all
->variants
[all
->active_variant
];
1280 /* Uniforms are implicitly UBO #0 */
1281 bool has_uniforms
= buf
->enabled_mask
& (1 << 0);
1283 /* Allocate room for the sysval and the uniforms */
1284 size_t sys_size
= sizeof(float) * 4 * ss
->sysval_count
;
1285 size_t uniform_size
= has_uniforms
? (buf
->cb
[0].buffer_size
) : 0;
1286 size_t size
= sys_size
+ uniform_size
;
1287 struct panfrost_transfer transfer
= panfrost_allocate_transient(ctx
, size
);
1289 /* Upload sysvals requested by the shader */
1290 panfrost_upload_sysvals(ctx
, transfer
.cpu
, ss
, i
);
1292 /* Upload uniforms */
1294 const void *cpu
= panfrost_map_constant_buffer_cpu(buf
, 0);
1295 memcpy(transfer
.cpu
+ sys_size
, cpu
, uniform_size
);
1299 ctx
->shader
[i
]->variants
[ctx
->shader
[i
]->active_variant
].uniform_count
;
1301 struct mali_vertex_tiler_postfix
*postfix
=
1302 &ctx
->payloads
[i
].postfix
;
1304 /* Next up, attach UBOs. UBO #0 is the uniforms we just
1307 unsigned ubo_count
= panfrost_ubo_count(ctx
, i
);
1308 assert(ubo_count
>= 1);
1310 size_t sz
= sizeof(struct mali_uniform_buffer_meta
) * ubo_count
;
1311 struct mali_uniform_buffer_meta ubos
[PAN_MAX_CONST_BUFFERS
];
1313 /* Upload uniforms as a UBO */
1314 ubos
[0].size
= MALI_POSITIVE((2 + uniform_count
));
1315 ubos
[0].ptr
= transfer
.gpu
>> 2;
1317 /* The rest are honest-to-goodness UBOs */
1319 for (unsigned ubo
= 1; ubo
< ubo_count
; ++ubo
) {
1320 size_t sz
= buf
->cb
[ubo
].buffer_size
;
1322 bool enabled
= buf
->enabled_mask
& (1 << ubo
);
1323 bool empty
= sz
== 0;
1325 if (!enabled
|| empty
) {
1326 /* Stub out disabled UBOs to catch accesses */
1329 ubos
[ubo
].ptr
= 0xDEAD0000;
1333 mali_ptr gpu
= panfrost_map_constant_buffer_gpu(ctx
, buf
, ubo
);
1335 unsigned bytes_per_field
= 16;
1336 unsigned aligned
= ALIGN_POT(sz
, bytes_per_field
);
1337 unsigned fields
= aligned
/ bytes_per_field
;
1339 ubos
[ubo
].size
= MALI_POSITIVE(fields
);
1340 ubos
[ubo
].ptr
= gpu
>> 2;
1343 mali_ptr ubufs
= panfrost_upload_transient(ctx
, ubos
, sz
);
1344 postfix
->uniforms
= transfer
.gpu
;
1345 postfix
->uniform_buffers
= ubufs
;
1347 buf
->dirty_mask
= 0;
1350 /* TODO: Upload the viewport somewhere more appropriate */
1352 /* Clip bounds are encoded as floats. The viewport itself is encoded as
1353 * (somewhat) asymmetric ints. */
1354 const struct pipe_scissor_state
*ss
= &ctx
->scissor
;
1356 struct mali_viewport view
= {
1357 /* By default, do no viewport clipping, i.e. clip to (-inf,
1358 * inf) in each direction. Clipping to the viewport in theory
1359 * should work, but in practice causes issues when we're not
1360 * explicitly trying to scissor */
1362 .clip_minx
= -INFINITY
,
1363 .clip_miny
= -INFINITY
,
1364 .clip_maxx
= INFINITY
,
1365 .clip_maxy
= INFINITY
,
1371 /* Always scissor to the viewport by default. */
1372 float vp_minx
= (int) (vp
->translate
[0] - fabsf(vp
->scale
[0]));
1373 float vp_maxx
= (int) (vp
->translate
[0] + fabsf(vp
->scale
[0]));
1375 float vp_miny
= (int) (vp
->translate
[1] - fabsf(vp
->scale
[1]));
1376 float vp_maxy
= (int) (vp
->translate
[1] + fabsf(vp
->scale
[1]));
1378 /* Apply the scissor test */
1380 unsigned minx
, miny
, maxx
, maxy
;
1382 if (ss
&& ctx
->rasterizer
&& ctx
->rasterizer
->base
.scissor
) {
1383 minx
= MAX2(ss
->minx
, vp_minx
);
1384 miny
= MAX2(ss
->miny
, vp_miny
);
1385 maxx
= MIN2(ss
->maxx
, vp_maxx
);
1386 maxy
= MIN2(ss
->maxy
, vp_maxy
);
1394 /* Hardware needs the min/max to be strictly ordered, so flip if we
1395 * need to. The viewport transformation in the vertex shader will
1396 * handle the negatives if we don't */
1410 /* Clamp everything positive, just in case */
1412 maxx
= MAX2(0, maxx
);
1413 maxy
= MAX2(0, maxy
);
1414 minx
= MAX2(0, minx
);
1415 miny
= MAX2(0, miny
);
1417 /* Clamp to the framebuffer size as a last check */
1419 minx
= MIN2(ctx
->pipe_framebuffer
.width
, minx
);
1420 maxx
= MIN2(ctx
->pipe_framebuffer
.width
, maxx
);
1422 miny
= MIN2(ctx
->pipe_framebuffer
.height
, miny
);
1423 maxy
= MIN2(ctx
->pipe_framebuffer
.height
, maxy
);
1425 /* Update the job, unless we're doing wallpapering (whose lack of
1426 * scissor we can ignore, since if we "miss" a tile of wallpaper, it'll
1427 * just... be faster :) */
1429 if (!ctx
->wallpaper_batch
)
1430 panfrost_job_union_scissor(job
, minx
, miny
, maxx
, maxy
);
1434 view
.viewport0
[0] = minx
;
1435 view
.viewport1
[0] = MALI_POSITIVE(maxx
);
1437 view
.viewport0
[1] = miny
;
1438 view
.viewport1
[1] = MALI_POSITIVE(maxy
);
1440 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].postfix
.viewport
=
1441 panfrost_upload_transient(ctx
,
1443 sizeof(struct mali_viewport
));
1448 /* Corresponds to exactly one draw, but does not submit anything */
1451 panfrost_queue_draw(struct panfrost_context
*ctx
)
1453 /* Handle dirty flags now */
1454 panfrost_emit_for_draw(ctx
, true);
1456 /* If rasterizer discard is enable, only submit the vertex */
1458 bool rasterizer_discard
= ctx
->rasterizer
1459 && ctx
->rasterizer
->base
.rasterizer_discard
;
1461 struct panfrost_transfer vertex
= panfrost_vertex_tiler_job(ctx
, false);
1462 struct panfrost_transfer tiler
;
1464 if (!rasterizer_discard
)
1465 tiler
= panfrost_vertex_tiler_job(ctx
, true);
1467 struct panfrost_job
*batch
= panfrost_get_job_for_fbo(ctx
);
1469 if (rasterizer_discard
)
1470 panfrost_scoreboard_queue_vertex_job(batch
, vertex
, FALSE
);
1471 else if (ctx
->wallpaper_batch
)
1472 panfrost_scoreboard_queue_fused_job_prepend(batch
, vertex
, tiler
);
1474 panfrost_scoreboard_queue_fused_job(batch
, vertex
, tiler
);
1477 /* The entire frame is in memory -- send it off to the kernel! */
1480 panfrost_submit_frame(struct panfrost_context
*ctx
, bool flush_immediate
,
1481 struct pipe_fence_handle
**fence
,
1482 struct panfrost_job
*job
)
1484 struct pipe_context
*gallium
= (struct pipe_context
*) ctx
;
1485 struct panfrost_screen
*screen
= pan_screen(gallium
->screen
);
1489 panfrost_job_submit(ctx
, job
);
1491 /* If visual, we can stall a frame */
1493 if (!flush_immediate
)
1494 panfrost_drm_force_flush_fragment(ctx
, fence
);
1496 screen
->last_fragment_flushed
= false;
1497 screen
->last_job
= job
;
1499 /* If readback, flush now (hurts the pipelined performance) */
1500 if (flush_immediate
)
1501 panfrost_drm_force_flush_fragment(ctx
, fence
);
1506 panfrost_draw_wallpaper(struct pipe_context
*pipe
)
1508 struct panfrost_context
*ctx
= pan_context(pipe
);
1510 /* Nothing to reload? TODO: MRT wallpapers */
1511 if (ctx
->pipe_framebuffer
.cbufs
[0] == NULL
)
1514 /* Check if the buffer has any content on it worth preserving */
1516 struct pipe_surface
*surf
= ctx
->pipe_framebuffer
.cbufs
[0];
1517 struct panfrost_resource
*rsrc
= pan_resource(surf
->texture
);
1518 unsigned level
= surf
->u
.tex
.level
;
1520 if (!rsrc
->slices
[level
].initialized
)
1523 /* Save the batch */
1524 struct panfrost_job
*batch
= panfrost_get_job_for_fbo(ctx
);
1526 ctx
->wallpaper_batch
= batch
;
1527 panfrost_blit_wallpaper(ctx
);
1528 ctx
->wallpaper_batch
= NULL
;
1533 struct pipe_context
*pipe
,
1534 struct pipe_fence_handle
**fence
,
1537 struct panfrost_context
*ctx
= pan_context(pipe
);
1538 struct panfrost_job
*job
= panfrost_get_job_for_fbo(ctx
);
1540 /* Nothing to do! */
1541 if (!job
->last_job
.gpu
&& !job
->clear
) return;
1543 if (!job
->clear
&& job
->last_tiler
.gpu
)
1544 panfrost_draw_wallpaper(&ctx
->base
);
1546 /* Whether to stall the pipeline for immediately correct results. Since
1547 * pipelined rendering is quite broken right now (to be fixed by the
1548 * panfrost_job refactor, just take the perf hit for correctness) */
1549 bool flush_immediate
= /*flags & PIPE_FLUSH_END_OF_FRAME*/true;
1551 /* Submit the frame itself */
1552 panfrost_submit_frame(ctx
, flush_immediate
, fence
, job
);
1554 /* Prepare for the next frame */
1555 panfrost_invalidate_frame(ctx
);
1558 #define DEFINE_CASE(c) case PIPE_PRIM_##c: return MALI_##c;
1561 g2m_draw_mode(enum pipe_prim_type mode
)
1564 DEFINE_CASE(POINTS
);
1566 DEFINE_CASE(LINE_LOOP
);
1567 DEFINE_CASE(LINE_STRIP
);
1568 DEFINE_CASE(TRIANGLES
);
1569 DEFINE_CASE(TRIANGLE_STRIP
);
1570 DEFINE_CASE(TRIANGLE_FAN
);
1572 DEFINE_CASE(QUAD_STRIP
);
1573 DEFINE_CASE(POLYGON
);
1576 unreachable("Invalid draw mode");
1583 panfrost_translate_index_size(unsigned size
)
1587 return MALI_DRAW_INDEXED_UINT8
;
1590 return MALI_DRAW_INDEXED_UINT16
;
1593 return MALI_DRAW_INDEXED_UINT32
;
1596 unreachable("Invalid index size");
1600 /* Gets a GPU address for the associated index buffer. Only gauranteed to be
1601 * good for the duration of the draw (transient), could last longer */
1604 panfrost_get_index_buffer_mapped(struct panfrost_context
*ctx
, const struct pipe_draw_info
*info
)
1606 struct panfrost_resource
*rsrc
= (struct panfrost_resource
*) (info
->index
.resource
);
1608 off_t offset
= info
->start
* info
->index_size
;
1609 struct panfrost_job
*batch
= panfrost_get_job_for_fbo(ctx
);
1611 if (!info
->has_user_indices
) {
1612 /* Only resources can be directly mapped */
1613 panfrost_job_add_bo(batch
, rsrc
->bo
);
1614 return rsrc
->bo
->gpu
+ offset
;
1616 /* Otherwise, we need to upload to transient memory */
1617 const uint8_t *ibuf8
= (const uint8_t *) info
->index
.user
;
1618 return panfrost_upload_transient(ctx
, ibuf8
+ offset
, info
->count
* info
->index_size
);
1623 panfrost_scissor_culls_everything(struct panfrost_context
*ctx
)
1625 const struct pipe_scissor_state
*ss
= &ctx
->scissor
;
1627 /* Check if we're scissoring at all */
1629 if (!(ctx
->rasterizer
&& ctx
->rasterizer
->base
.scissor
))
1632 return (ss
->minx
== ss
->maxx
) || (ss
->miny
== ss
->maxy
);
1637 struct pipe_context
*pipe
,
1638 const struct pipe_draw_info
*info
)
1640 struct panfrost_context
*ctx
= pan_context(pipe
);
1642 /* First of all, check the scissor to see if anything is drawn at all.
1643 * If it's not, we drop the draw (mostly a conformance issue;
1644 * well-behaved apps shouldn't hit this) */
1646 if (panfrost_scissor_culls_everything(ctx
))
1649 ctx
->payloads
[PIPE_SHADER_VERTEX
].draw_start
= info
->start
;
1650 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].draw_start
= info
->start
;
1652 int mode
= info
->mode
;
1654 /* Fallback unsupported restart index */
1655 unsigned primitive_index
= (1 << (info
->index_size
* 8)) - 1;
1657 if (info
->primitive_restart
&& info
->index_size
1658 && info
->restart_index
!= primitive_index
) {
1659 util_draw_vbo_without_prim_restart(pipe
, info
);
1663 /* Fallback for unsupported modes */
1665 if (!(ctx
->draw_modes
& (1 << mode
))) {
1666 if (mode
== PIPE_PRIM_QUADS
&& info
->count
== 4 && ctx
->rasterizer
&& !ctx
->rasterizer
->base
.flatshade
) {
1667 mode
= PIPE_PRIM_TRIANGLE_FAN
;
1669 if (info
->count
< 4) {
1670 /* Degenerate case? */
1674 util_primconvert_save_rasterizer_state(ctx
->primconvert
, &ctx
->rasterizer
->base
);
1675 util_primconvert_draw_vbo(ctx
->primconvert
, info
);
1680 /* Now that we have a guaranteed terminating path, find the job.
1681 * Assignment commented out to prevent unused warning */
1683 /* struct panfrost_job *job = */ panfrost_get_job_for_fbo(ctx
);
1685 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
.draw_mode
= g2m_draw_mode(mode
);
1687 ctx
->vertex_count
= info
->count
;
1688 ctx
->instance_count
= info
->instance_count
;
1690 /* For non-indexed draws, they're the same */
1691 unsigned vertex_count
= ctx
->vertex_count
;
1693 unsigned draw_flags
= 0;
1695 /* The draw flags interpret how primitive size is interpreted */
1697 if (panfrost_writes_point_size(ctx
))
1698 draw_flags
|= MALI_DRAW_VARYING_SIZE
;
1700 if (info
->primitive_restart
)
1701 draw_flags
|= MALI_DRAW_PRIMITIVE_RESTART_FIXED_INDEX
;
1703 /* For higher amounts of vertices (greater than what fits in a 16-bit
1704 * short), the other value is needed, otherwise there will be bizarre
1705 * rendering artefacts. It's not clear what these values mean yet. This
1706 * change is also needed for instancing and sometimes points (perhaps
1707 * related to dynamically setting gl_PointSize) */
1709 bool is_points
= mode
== PIPE_PRIM_POINTS
;
1710 bool many_verts
= ctx
->vertex_count
> 0xFFFF;
1711 bool instanced
= ctx
->instance_count
> 1;
1713 draw_flags
|= (is_points
|| many_verts
|| instanced
) ? 0x3000 : 0x18000;
1715 /* This doesn't make much sense */
1716 if (mode
== PIPE_PRIM_LINE_STRIP
) {
1717 draw_flags
|= 0x800;
1720 if (info
->index_size
) {
1721 /* Calculate the min/max index used so we can figure out how
1722 * many times to invoke the vertex shader */
1724 /* Fetch / calculate index bounds */
1725 unsigned min_index
= 0, max_index
= 0;
1727 if (info
->max_index
== ~0u) {
1728 u_vbuf_get_minmax_index(pipe
, info
, &min_index
, &max_index
);
1730 min_index
= info
->min_index
;
1731 max_index
= info
->max_index
;
1734 /* Use the corresponding values */
1735 vertex_count
= max_index
- min_index
+ 1;
1736 ctx
->payloads
[PIPE_SHADER_VERTEX
].draw_start
= min_index
;
1737 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].draw_start
= min_index
;
1739 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
.negative_start
= -min_index
;
1740 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
.index_count
= MALI_POSITIVE(info
->count
);
1742 //assert(!info->restart_index); /* TODO: Research */
1743 assert(!info
->index_bias
);
1745 draw_flags
|= panfrost_translate_index_size(info
->index_size
);
1746 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
.indices
= panfrost_get_index_buffer_mapped(ctx
, info
);
1748 /* Index count == vertex count, if no indexing is applied, as
1749 * if it is internally indexed in the expected order */
1751 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
.negative_start
= 0;
1752 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
.index_count
= MALI_POSITIVE(ctx
->vertex_count
);
1754 /* Reverse index state */
1755 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
.indices
= (u64
) NULL
;
1758 /* Dispatch "compute jobs" for the vertex/tiler pair as (1,
1759 * vertex_count, 1) */
1761 panfrost_pack_work_groups_fused(
1762 &ctx
->payloads
[PIPE_SHADER_VERTEX
].prefix
,
1763 &ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
,
1764 1, vertex_count
, info
->instance_count
,
1767 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].prefix
.unknown_draw
= draw_flags
;
1769 /* Encode the padded vertex count */
1771 if (info
->instance_count
> 1) {
1772 /* Triangles have non-even vertex counts so they change how
1773 * padding works internally */
1776 mode
== PIPE_PRIM_TRIANGLES
||
1777 mode
== PIPE_PRIM_TRIANGLE_STRIP
||
1778 mode
== PIPE_PRIM_TRIANGLE_FAN
;
1780 struct pan_shift_odd so
=
1781 panfrost_padded_vertex_count(vertex_count
, !is_triangle
);
1783 ctx
->payloads
[PIPE_SHADER_VERTEX
].instance_shift
= so
.shift
;
1784 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].instance_shift
= so
.shift
;
1786 ctx
->payloads
[PIPE_SHADER_VERTEX
].instance_odd
= so
.odd
;
1787 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].instance_odd
= so
.odd
;
1789 ctx
->padded_count
= pan_expand_shift_odd(so
);
1791 ctx
->padded_count
= ctx
->vertex_count
;
1793 /* Reset instancing state */
1794 ctx
->payloads
[PIPE_SHADER_VERTEX
].instance_shift
= 0;
1795 ctx
->payloads
[PIPE_SHADER_VERTEX
].instance_odd
= 0;
1796 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].instance_shift
= 0;
1797 ctx
->payloads
[PIPE_SHADER_FRAGMENT
].instance_odd
= 0;
1800 /* Fire off the draw itself */
1801 panfrost_queue_draw(ctx
);
1807 panfrost_generic_cso_delete(struct pipe_context
*pctx
, void *hwcso
)
1813 panfrost_create_rasterizer_state(
1814 struct pipe_context
*pctx
,
1815 const struct pipe_rasterizer_state
*cso
)
1817 struct panfrost_rasterizer
*so
= CALLOC_STRUCT(panfrost_rasterizer
);
1821 /* Bitmask, unknown meaning of the start value. 0x105 on 32-bit T6XX */
1822 so
->tiler_gl_enables
= 0x7;
1825 so
->tiler_gl_enables
|= MALI_FRONT_CCW_TOP
;
1827 if (cso
->cull_face
& PIPE_FACE_FRONT
)
1828 so
->tiler_gl_enables
|= MALI_CULL_FACE_FRONT
;
1830 if (cso
->cull_face
& PIPE_FACE_BACK
)
1831 so
->tiler_gl_enables
|= MALI_CULL_FACE_BACK
;
1837 panfrost_bind_rasterizer_state(
1838 struct pipe_context
*pctx
,
1841 struct panfrost_context
*ctx
= pan_context(pctx
);
1843 /* TODO: Why can't rasterizer be NULL ever? Other drivers are fine.. */
1847 ctx
->rasterizer
= hwcso
;
1848 ctx
->dirty
|= PAN_DIRTY_RASTERIZER
;
1850 ctx
->fragment_shader_core
.depth_units
= ctx
->rasterizer
->base
.offset_units
;
1851 ctx
->fragment_shader_core
.depth_factor
= ctx
->rasterizer
->base
.offset_scale
;
1853 /* Gauranteed with the core GL call, so don't expose ARB_polygon_offset */
1854 assert(ctx
->rasterizer
->base
.offset_clamp
== 0.0);
1856 /* XXX: Which bit is which? Does this maybe allow offseting not-tri? */
1858 SET_BIT(ctx
->fragment_shader_core
.unknown2_4
, MALI_DEPTH_RANGE_A
, ctx
->rasterizer
->base
.offset_tri
);
1859 SET_BIT(ctx
->fragment_shader_core
.unknown2_4
, MALI_DEPTH_RANGE_B
, ctx
->rasterizer
->base
.offset_tri
);
1861 /* Point sprites are emulated */
1863 struct panfrost_shader_state
*variant
=
1864 ctx
->shader
[PIPE_SHADER_FRAGMENT
] ? &ctx
->shader
[PIPE_SHADER_FRAGMENT
]->variants
[ctx
->shader
[PIPE_SHADER_FRAGMENT
]->active_variant
] : NULL
;
1866 if (ctx
->rasterizer
->base
.sprite_coord_enable
|| (variant
&& variant
->point_sprite_mask
))
1867 ctx
->base
.bind_fs_state(&ctx
->base
, ctx
->shader
[PIPE_SHADER_FRAGMENT
]);
1871 panfrost_create_vertex_elements_state(
1872 struct pipe_context
*pctx
,
1873 unsigned num_elements
,
1874 const struct pipe_vertex_element
*elements
)
1876 struct panfrost_vertex_state
*so
= CALLOC_STRUCT(panfrost_vertex_state
);
1878 so
->num_elements
= num_elements
;
1879 memcpy(so
->pipe
, elements
, sizeof(*elements
) * num_elements
);
1881 for (int i
= 0; i
< num_elements
; ++i
) {
1882 so
->hw
[i
].index
= i
;
1884 enum pipe_format fmt
= elements
[i
].src_format
;
1885 const struct util_format_description
*desc
= util_format_description(fmt
);
1886 so
->hw
[i
].unknown1
= 0x2;
1887 so
->hw
[i
].swizzle
= panfrost_get_default_swizzle(desc
->nr_channels
);
1889 so
->hw
[i
].format
= panfrost_find_format(desc
);
1891 /* The field itself should probably be shifted over */
1892 so
->hw
[i
].src_offset
= elements
[i
].src_offset
;
1899 panfrost_bind_vertex_elements_state(
1900 struct pipe_context
*pctx
,
1903 struct panfrost_context
*ctx
= pan_context(pctx
);
1905 ctx
->vertex
= hwcso
;
1906 ctx
->dirty
|= PAN_DIRTY_VERTEX
;
1910 panfrost_create_shader_state(
1911 struct pipe_context
*pctx
,
1912 const struct pipe_shader_state
*cso
)
1914 struct panfrost_shader_variants
*so
= CALLOC_STRUCT(panfrost_shader_variants
);
1917 /* Token deep copy to prevent memory corruption */
1919 if (cso
->type
== PIPE_SHADER_IR_TGSI
)
1920 so
->base
.tokens
= tgsi_dup_tokens(so
->base
.tokens
);
1926 panfrost_delete_shader_state(
1927 struct pipe_context
*pctx
,
1930 struct panfrost_shader_variants
*cso
= (struct panfrost_shader_variants
*) so
;
1932 if (cso
->base
.type
== PIPE_SHADER_IR_TGSI
) {
1933 DBG("Deleting TGSI shader leaks duplicated tokens\n");
1940 panfrost_create_sampler_state(
1941 struct pipe_context
*pctx
,
1942 const struct pipe_sampler_state
*cso
)
1944 struct panfrost_sampler_state
*so
= CALLOC_STRUCT(panfrost_sampler_state
);
1947 /* sampler_state corresponds to mali_sampler_descriptor, which we can generate entirely here */
1949 bool min_nearest
= cso
->min_img_filter
== PIPE_TEX_FILTER_NEAREST
;
1950 bool mag_nearest
= cso
->mag_img_filter
== PIPE_TEX_FILTER_NEAREST
;
1951 bool mip_linear
= cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_LINEAR
;
1953 unsigned min_filter
= min_nearest
? MALI_SAMP_MIN_NEAREST
: 0;
1954 unsigned mag_filter
= mag_nearest
? MALI_SAMP_MAG_NEAREST
: 0;
1955 unsigned mip_filter
= mip_linear
?
1956 (MALI_SAMP_MIP_LINEAR_1
| MALI_SAMP_MIP_LINEAR_2
) : 0;
1957 unsigned normalized
= cso
->normalized_coords
? MALI_SAMP_NORM_COORDS
: 0;
1959 struct mali_sampler_descriptor sampler_descriptor
= {
1960 .filter_mode
= min_filter
| mag_filter
| mip_filter
| normalized
,
1961 .wrap_s
= translate_tex_wrap(cso
->wrap_s
),
1962 .wrap_t
= translate_tex_wrap(cso
->wrap_t
),
1963 .wrap_r
= translate_tex_wrap(cso
->wrap_r
),
1964 .compare_func
= panfrost_translate_alt_compare_func(cso
->compare_func
),
1966 cso
->border_color
.f
[0],
1967 cso
->border_color
.f
[1],
1968 cso
->border_color
.f
[2],
1969 cso
->border_color
.f
[3]
1971 .min_lod
= FIXED_16(cso
->min_lod
),
1972 .max_lod
= FIXED_16(cso
->max_lod
),
1973 .seamless_cube_map
= cso
->seamless_cube_map
,
1976 /* If necessary, we disable mipmapping in the sampler descriptor by
1977 * clamping the LOD as tight as possible (from 0 to epsilon,
1978 * essentially -- remember these are fixed point numbers, so
1981 if (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_NONE
)
1982 sampler_descriptor
.max_lod
= sampler_descriptor
.min_lod
;
1984 /* Enforce that there is something in the middle by adding epsilon*/
1986 if (sampler_descriptor
.min_lod
== sampler_descriptor
.max_lod
)
1987 sampler_descriptor
.max_lod
++;
1990 assert(sampler_descriptor
.max_lod
> sampler_descriptor
.min_lod
);
1992 so
->hw
= sampler_descriptor
;
1998 panfrost_bind_sampler_states(
1999 struct pipe_context
*pctx
,
2000 enum pipe_shader_type shader
,
2001 unsigned start_slot
, unsigned num_sampler
,
2004 assert(start_slot
== 0);
2006 struct panfrost_context
*ctx
= pan_context(pctx
);
2008 /* XXX: Should upload, not just copy? */
2009 ctx
->sampler_count
[shader
] = num_sampler
;
2010 memcpy(ctx
->samplers
[shader
], sampler
, num_sampler
* sizeof (void *));
2012 ctx
->dirty
|= PAN_DIRTY_SAMPLERS
;
2016 panfrost_variant_matches(
2017 struct panfrost_context
*ctx
,
2018 struct panfrost_shader_state
*variant
,
2019 enum pipe_shader_type type
)
2021 struct pipe_rasterizer_state
*rasterizer
= &ctx
->rasterizer
->base
;
2022 struct pipe_alpha_state
*alpha
= &ctx
->depth_stencil
->alpha
;
2024 bool is_fragment
= (type
== PIPE_SHADER_FRAGMENT
);
2026 if (is_fragment
&& (alpha
->enabled
|| variant
->alpha_state
.enabled
)) {
2027 /* Make sure enable state is at least the same */
2028 if (alpha
->enabled
!= variant
->alpha_state
.enabled
) {
2032 /* Check that the contents of the test are the same */
2033 bool same_func
= alpha
->func
== variant
->alpha_state
.func
;
2034 bool same_ref
= alpha
->ref_value
== variant
->alpha_state
.ref_value
;
2036 if (!(same_func
&& same_ref
)) {
2041 if (is_fragment
&& rasterizer
&& (rasterizer
->sprite_coord_enable
|
2042 variant
->point_sprite_mask
)) {
2043 /* Ensure the same varyings are turned to point sprites */
2044 if (rasterizer
->sprite_coord_enable
!= variant
->point_sprite_mask
)
2047 /* Ensure the orientation is correct */
2049 rasterizer
->sprite_coord_mode
==
2050 PIPE_SPRITE_COORD_UPPER_LEFT
;
2052 if (variant
->point_sprite_upper_left
!= upper_left
)
2056 /* Otherwise, we're good to go */
2061 panfrost_bind_shader_state(
2062 struct pipe_context
*pctx
,
2064 enum pipe_shader_type type
)
2066 struct panfrost_context
*ctx
= pan_context(pctx
);
2068 ctx
->shader
[type
] = hwcso
;
2070 if (type
== PIPE_SHADER_FRAGMENT
)
2071 ctx
->dirty
|= PAN_DIRTY_FS
;
2073 ctx
->dirty
|= PAN_DIRTY_VS
;
2077 /* Match the appropriate variant */
2079 signed variant
= -1;
2080 struct panfrost_shader_variants
*variants
= (struct panfrost_shader_variants
*) hwcso
;
2082 for (unsigned i
= 0; i
< variants
->variant_count
; ++i
) {
2083 if (panfrost_variant_matches(ctx
, &variants
->variants
[i
], type
)) {
2089 if (variant
== -1) {
2090 /* No variant matched, so create a new one */
2091 variant
= variants
->variant_count
++;
2092 assert(variants
->variant_count
< MAX_SHADER_VARIANTS
);
2094 struct panfrost_shader_state
*v
=
2095 &variants
->variants
[variant
];
2097 if (type
== PIPE_SHADER_FRAGMENT
) {
2098 v
->alpha_state
= ctx
->depth_stencil
->alpha
;
2100 if (ctx
->rasterizer
) {
2101 v
->point_sprite_mask
= ctx
->rasterizer
->base
.sprite_coord_enable
;
2102 v
->point_sprite_upper_left
=
2103 ctx
->rasterizer
->base
.sprite_coord_mode
==
2104 PIPE_SPRITE_COORD_UPPER_LEFT
;
2108 variants
->variants
[variant
].tripipe
= malloc(sizeof(struct mali_shader_meta
));
2112 /* Select this variant */
2113 variants
->active_variant
= variant
;
2115 struct panfrost_shader_state
*shader_state
= &variants
->variants
[variant
];
2116 assert(panfrost_variant_matches(ctx
, shader_state
, type
));
2118 /* We finally have a variant, so compile it */
2120 if (!shader_state
->compiled
) {
2121 panfrost_shader_compile(ctx
, shader_state
->tripipe
,
2122 variants
->base
.type
,
2123 variants
->base
.type
== PIPE_SHADER_IR_NIR
?
2124 variants
->base
.ir
.nir
:
2125 variants
->base
.tokens
,
2127 panfrost_job_type_for_pipe(type
), shader_state
);
2129 shader_state
->compiled
= true;
2134 panfrost_bind_vs_state(struct pipe_context
*pctx
, void *hwcso
)
2136 panfrost_bind_shader_state(pctx
, hwcso
, PIPE_SHADER_VERTEX
);
2140 panfrost_bind_fs_state(struct pipe_context
*pctx
, void *hwcso
)
2142 panfrost_bind_shader_state(pctx
, hwcso
, PIPE_SHADER_FRAGMENT
);
2146 panfrost_set_vertex_buffers(
2147 struct pipe_context
*pctx
,
2148 unsigned start_slot
,
2149 unsigned num_buffers
,
2150 const struct pipe_vertex_buffer
*buffers
)
2152 struct panfrost_context
*ctx
= pan_context(pctx
);
2154 util_set_vertex_buffers_mask(ctx
->vertex_buffers
, &ctx
->vb_mask
, buffers
, start_slot
, num_buffers
);
2158 panfrost_set_constant_buffer(
2159 struct pipe_context
*pctx
,
2160 enum pipe_shader_type shader
, uint index
,
2161 const struct pipe_constant_buffer
*buf
)
2163 struct panfrost_context
*ctx
= pan_context(pctx
);
2164 struct panfrost_constant_buffer
*pbuf
= &ctx
->constant_buffer
[shader
];
2166 util_copy_constant_buffer(&pbuf
->cb
[index
], buf
);
2168 unsigned mask
= (1 << index
);
2170 if (unlikely(!buf
)) {
2171 pbuf
->enabled_mask
&= ~mask
;
2172 pbuf
->dirty_mask
&= ~mask
;
2176 pbuf
->enabled_mask
|= mask
;
2177 pbuf
->dirty_mask
|= mask
;
2181 panfrost_set_stencil_ref(
2182 struct pipe_context
*pctx
,
2183 const struct pipe_stencil_ref
*ref
)
2185 struct panfrost_context
*ctx
= pan_context(pctx
);
2186 ctx
->stencil_ref
= *ref
;
2188 /* Shader core dirty */
2189 ctx
->dirty
|= PAN_DIRTY_FS
;
2192 static enum mali_texture_type
2193 panfrost_translate_texture_type(enum pipe_texture_target t
) {
2197 case PIPE_TEXTURE_1D
:
2198 case PIPE_TEXTURE_1D_ARRAY
:
2201 case PIPE_TEXTURE_2D
:
2202 case PIPE_TEXTURE_2D_ARRAY
:
2203 case PIPE_TEXTURE_RECT
:
2206 case PIPE_TEXTURE_3D
:
2209 case PIPE_TEXTURE_CUBE
:
2210 case PIPE_TEXTURE_CUBE_ARRAY
:
2211 return MALI_TEX_CUBE
;
2214 unreachable("Unknown target");
2218 static struct pipe_sampler_view
*
2219 panfrost_create_sampler_view(
2220 struct pipe_context
*pctx
,
2221 struct pipe_resource
*texture
,
2222 const struct pipe_sampler_view
*template)
2224 struct panfrost_sampler_view
*so
= rzalloc(pctx
, struct panfrost_sampler_view
);
2225 int bytes_per_pixel
= util_format_get_blocksize(texture
->format
);
2227 pipe_reference(NULL
, &texture
->reference
);
2229 struct panfrost_resource
*prsrc
= (struct panfrost_resource
*) texture
;
2232 so
->base
= *template;
2233 so
->base
.texture
= texture
;
2234 so
->base
.reference
.count
= 1;
2235 so
->base
.context
= pctx
;
2237 /* sampler_views correspond to texture descriptors, minus the texture
2238 * (data) itself. So, we serialise the descriptor here and cache it for
2241 /* TODO: Detect from format better */
2242 const struct util_format_description
*desc
= util_format_description(prsrc
->base
.format
);
2244 unsigned char user_swizzle
[4] = {
2245 template->swizzle_r
,
2246 template->swizzle_g
,
2247 template->swizzle_b
,
2251 enum mali_format format
= panfrost_find_format(desc
);
2253 /* Check if we need to set a custom stride by computing the "expected"
2254 * stride and comparing it to what the BO actually wants. Only applies
2255 * to linear textures, since tiled/compressed textures have strict
2256 * alignment requirements for their strides as it is */
2258 unsigned first_level
= template->u
.tex
.first_level
;
2259 unsigned last_level
= template->u
.tex
.last_level
;
2261 if (prsrc
->layout
== PAN_LINEAR
) {
2262 for (unsigned l
= first_level
; l
<= last_level
; ++l
) {
2263 unsigned actual_stride
= prsrc
->slices
[l
].stride
;
2264 unsigned width
= u_minify(texture
->width0
, l
);
2265 unsigned comp_stride
= width
* bytes_per_pixel
;
2267 if (comp_stride
!= actual_stride
) {
2268 so
->manual_stride
= true;
2274 /* In the hardware, array_size refers specifically to array textures,
2275 * whereas in Gallium, it also covers cubemaps */
2277 unsigned array_size
= texture
->array_size
;
2279 if (template->target
== PIPE_TEXTURE_CUBE
) {
2280 /* TODO: Cubemap arrays */
2281 assert(array_size
== 6);
2285 struct mali_texture_descriptor texture_descriptor
= {
2286 .width
= MALI_POSITIVE(u_minify(texture
->width0
, first_level
)),
2287 .height
= MALI_POSITIVE(u_minify(texture
->height0
, first_level
)),
2288 .depth
= MALI_POSITIVE(u_minify(texture
->depth0
, first_level
)),
2289 .array_size
= MALI_POSITIVE(array_size
),
2293 .swizzle
= panfrost_translate_swizzle_4(desc
->swizzle
),
2296 .srgb
= desc
->colorspace
== UTIL_FORMAT_COLORSPACE_SRGB
,
2297 .type
= panfrost_translate_texture_type(template->target
),
2300 .swizzle
= panfrost_translate_swizzle_4(user_swizzle
)
2303 texture_descriptor
.nr_mipmap_levels
= last_level
- first_level
;
2305 so
->hw
= texture_descriptor
;
2307 return (struct pipe_sampler_view
*) so
;
2311 panfrost_set_sampler_views(
2312 struct pipe_context
*pctx
,
2313 enum pipe_shader_type shader
,
2314 unsigned start_slot
, unsigned num_views
,
2315 struct pipe_sampler_view
**views
)
2317 struct panfrost_context
*ctx
= pan_context(pctx
);
2319 assert(start_slot
== 0);
2321 unsigned new_nr
= 0;
2322 for (unsigned i
= 0; i
< num_views
; ++i
) {
2327 ctx
->sampler_view_count
[shader
] = new_nr
;
2328 memcpy(ctx
->sampler_views
[shader
], views
, num_views
* sizeof (void *));
2330 ctx
->dirty
|= PAN_DIRTY_TEXTURES
;
2334 panfrost_sampler_view_destroy(
2335 struct pipe_context
*pctx
,
2336 struct pipe_sampler_view
*view
)
2338 pipe_resource_reference(&view
->texture
, NULL
);
2343 panfrost_set_shader_buffers(
2344 struct pipe_context
*pctx
,
2345 enum pipe_shader_type shader
,
2346 unsigned start
, unsigned count
,
2347 const struct pipe_shader_buffer
*buffers
,
2348 unsigned writable_bitmask
)
2350 struct panfrost_context
*ctx
= pan_context(pctx
);
2352 util_set_shader_buffers_mask(ctx
->ssbo
[shader
], &ctx
->ssbo_mask
[shader
],
2353 buffers
, start
, count
);
2356 /* Hints that a framebuffer should use AFBC where possible */
2360 struct panfrost_screen
*screen
,
2361 const struct pipe_framebuffer_state
*fb
)
2363 /* AFBC implemenation incomplete; hide it */
2364 if (!(pan_debug
& PAN_DBG_AFBC
)) return;
2366 /* Hint AFBC to the resources bound to each color buffer */
2368 for (unsigned i
= 0; i
< fb
->nr_cbufs
; ++i
) {
2369 struct pipe_surface
*surf
= fb
->cbufs
[i
];
2370 struct panfrost_resource
*rsrc
= pan_resource(surf
->texture
);
2371 panfrost_resource_hint_layout(screen
, rsrc
, PAN_AFBC
, 1);
2374 /* Also hint it to the depth buffer */
2377 struct panfrost_resource
*rsrc
= pan_resource(fb
->zsbuf
->texture
);
2378 panfrost_resource_hint_layout(screen
, rsrc
, PAN_AFBC
, 1);
2383 panfrost_set_framebuffer_state(struct pipe_context
*pctx
,
2384 const struct pipe_framebuffer_state
*fb
)
2386 struct panfrost_context
*ctx
= pan_context(pctx
);
2388 /* Flush when switching framebuffers, but not if the framebuffer
2389 * state is being restored by u_blitter
2392 struct panfrost_job
*job
= panfrost_get_job_for_fbo(ctx
);
2393 bool is_scanout
= panfrost_is_scanout(ctx
);
2394 bool has_draws
= job
->last_job
.gpu
;
2396 if (!ctx
->wallpaper_batch
&& (!is_scanout
|| has_draws
)) {
2397 panfrost_flush(pctx
, NULL
, PIPE_FLUSH_END_OF_FRAME
);
2400 util_copy_framebuffer_state(&ctx
->pipe_framebuffer
, fb
);
2402 /* Given that we're rendering, we'd love to have compression */
2403 struct panfrost_screen
*screen
= pan_screen(ctx
->base
.screen
);
2405 panfrost_hint_afbc(screen
, &ctx
->pipe_framebuffer
);
2407 if (screen
->require_sfbd
)
2408 ctx
->vt_framebuffer_sfbd
= panfrost_emit_sfbd(ctx
, ~0);
2410 ctx
->vt_framebuffer_mfbd
= panfrost_emit_mfbd(ctx
, ~0);
2412 panfrost_attach_vt_framebuffer(ctx
, false);
2416 panfrost_create_depth_stencil_state(struct pipe_context
*pipe
,
2417 const struct pipe_depth_stencil_alpha_state
*depth_stencil
)
2419 return mem_dup(depth_stencil
, sizeof(*depth_stencil
));
2423 panfrost_bind_depth_stencil_state(struct pipe_context
*pipe
,
2426 struct panfrost_context
*ctx
= pan_context(pipe
);
2427 struct pipe_depth_stencil_alpha_state
*depth_stencil
= cso
;
2428 ctx
->depth_stencil
= depth_stencil
;
2433 /* Alpha does not exist in the hardware (it's not in ES3), so it's
2434 * emulated in the fragment shader */
2436 if (depth_stencil
->alpha
.enabled
) {
2437 /* We need to trigger a new shader (maybe) */
2438 ctx
->base
.bind_fs_state(&ctx
->base
, ctx
->shader
[PIPE_SHADER_FRAGMENT
]);
2442 SET_BIT(ctx
->fragment_shader_core
.unknown2_4
, MALI_STENCIL_TEST
, depth_stencil
->stencil
[0].enabled
);
2444 panfrost_make_stencil_state(&depth_stencil
->stencil
[0], &ctx
->fragment_shader_core
.stencil_front
);
2445 ctx
->fragment_shader_core
.stencil_mask_front
= depth_stencil
->stencil
[0].writemask
;
2447 /* If back-stencil is not enabled, use the front values */
2448 bool back_enab
= ctx
->depth_stencil
->stencil
[1].enabled
;
2449 unsigned back_index
= back_enab
? 1 : 0;
2451 panfrost_make_stencil_state(&depth_stencil
->stencil
[back_index
], &ctx
->fragment_shader_core
.stencil_back
);
2452 ctx
->fragment_shader_core
.stencil_mask_back
= depth_stencil
->stencil
[back_index
].writemask
;
2454 /* Depth state (TODO: Refactor) */
2455 SET_BIT(ctx
->fragment_shader_core
.unknown2_3
, MALI_DEPTH_TEST
, depth_stencil
->depth
.enabled
);
2457 int func
= depth_stencil
->depth
.enabled
? depth_stencil
->depth
.func
: PIPE_FUNC_ALWAYS
;
2459 ctx
->fragment_shader_core
.unknown2_3
&= ~MALI_DEPTH_FUNC_MASK
;
2460 ctx
->fragment_shader_core
.unknown2_3
|= MALI_DEPTH_FUNC(panfrost_translate_compare_func(func
));
2462 /* Bounds test not implemented */
2463 assert(!depth_stencil
->depth
.bounds_test
);
2465 ctx
->dirty
|= PAN_DIRTY_FS
;
2469 panfrost_delete_depth_stencil_state(struct pipe_context
*pipe
, void *depth
)
2475 panfrost_set_sample_mask(struct pipe_context
*pipe
,
2476 unsigned sample_mask
)
2481 panfrost_set_clip_state(struct pipe_context
*pipe
,
2482 const struct pipe_clip_state
*clip
)
2484 //struct panfrost_context *panfrost = pan_context(pipe);
2488 panfrost_set_viewport_states(struct pipe_context
*pipe
,
2489 unsigned start_slot
,
2490 unsigned num_viewports
,
2491 const struct pipe_viewport_state
*viewports
)
2493 struct panfrost_context
*ctx
= pan_context(pipe
);
2495 assert(start_slot
== 0);
2496 assert(num_viewports
== 1);
2498 ctx
->pipe_viewport
= *viewports
;
2502 panfrost_set_scissor_states(struct pipe_context
*pipe
,
2503 unsigned start_slot
,
2504 unsigned num_scissors
,
2505 const struct pipe_scissor_state
*scissors
)
2507 struct panfrost_context
*ctx
= pan_context(pipe
);
2509 assert(start_slot
== 0);
2510 assert(num_scissors
== 1);
2512 ctx
->scissor
= *scissors
;
2516 panfrost_set_polygon_stipple(struct pipe_context
*pipe
,
2517 const struct pipe_poly_stipple
*stipple
)
2519 //struct panfrost_context *panfrost = pan_context(pipe);
2523 panfrost_set_active_query_state(struct pipe_context
*pipe
,
2526 //struct panfrost_context *panfrost = pan_context(pipe);
2530 panfrost_destroy(struct pipe_context
*pipe
)
2532 struct panfrost_context
*panfrost
= pan_context(pipe
);
2533 struct panfrost_screen
*screen
= pan_screen(pipe
->screen
);
2535 if (panfrost
->blitter
)
2536 util_blitter_destroy(panfrost
->blitter
);
2538 if (panfrost
->blitter_wallpaper
)
2539 util_blitter_destroy(panfrost
->blitter_wallpaper
);
2541 panfrost_drm_free_slab(screen
, &panfrost
->scratchpad
);
2542 panfrost_drm_free_slab(screen
, &panfrost
->shaders
);
2543 panfrost_drm_free_slab(screen
, &panfrost
->tiler_heap
);
2544 panfrost_drm_free_slab(screen
, &panfrost
->tiler_polygon_list
);
2545 panfrost_drm_free_slab(screen
, &panfrost
->tiler_dummy
);
2550 static struct pipe_query
*
2551 panfrost_create_query(struct pipe_context
*pipe
,
2555 struct panfrost_query
*q
= rzalloc(pipe
, struct panfrost_query
);
2560 return (struct pipe_query
*) q
;
2564 panfrost_destroy_query(struct pipe_context
*pipe
, struct pipe_query
*q
)
2570 panfrost_begin_query(struct pipe_context
*pipe
, struct pipe_query
*q
)
2572 struct panfrost_context
*ctx
= pan_context(pipe
);
2573 struct panfrost_query
*query
= (struct panfrost_query
*) q
;
2575 switch (query
->type
) {
2576 case PIPE_QUERY_OCCLUSION_COUNTER
:
2577 case PIPE_QUERY_OCCLUSION_PREDICATE
:
2578 case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE
: {
2579 /* Allocate a word for the query results to be stored */
2580 query
->transfer
= panfrost_allocate_transient(ctx
, sizeof(unsigned));
2582 ctx
->occlusion_query
= query
;
2588 DBG("Skipping query %d\n", query
->type
);
2596 panfrost_end_query(struct pipe_context
*pipe
, struct pipe_query
*q
)
2598 struct panfrost_context
*ctx
= pan_context(pipe
);
2599 ctx
->occlusion_query
= NULL
;
2604 panfrost_get_query_result(struct pipe_context
*pipe
,
2605 struct pipe_query
*q
,
2607 union pipe_query_result
*vresult
)
2610 struct panfrost_query
*query
= (struct panfrost_query
*) q
;
2612 /* We need to flush out the jobs to actually run the counter, TODO
2613 * check wait, TODO wallpaper after if needed */
2615 panfrost_flush(pipe
, NULL
, PIPE_FLUSH_END_OF_FRAME
);
2617 switch (query
->type
) {
2618 case PIPE_QUERY_OCCLUSION_COUNTER
:
2619 case PIPE_QUERY_OCCLUSION_PREDICATE
:
2620 case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE
: {
2621 /* Read back the query results */
2622 unsigned *result
= (unsigned *) query
->transfer
.cpu
;
2623 unsigned passed
= *result
;
2625 if (query
->type
== PIPE_QUERY_OCCLUSION_COUNTER
) {
2626 vresult
->u64
= passed
;
2628 vresult
->b
= !!passed
;
2634 DBG("Skipped query get %d\n", query
->type
);
2641 static struct pipe_stream_output_target
*
2642 panfrost_create_stream_output_target(struct pipe_context
*pctx
,
2643 struct pipe_resource
*prsc
,
2644 unsigned buffer_offset
,
2645 unsigned buffer_size
)
2647 struct pipe_stream_output_target
*target
;
2649 target
= rzalloc(pctx
, struct pipe_stream_output_target
);
2654 pipe_reference_init(&target
->reference
, 1);
2655 pipe_resource_reference(&target
->buffer
, prsc
);
2657 target
->context
= pctx
;
2658 target
->buffer_offset
= buffer_offset
;
2659 target
->buffer_size
= buffer_size
;
2665 panfrost_stream_output_target_destroy(struct pipe_context
*pctx
,
2666 struct pipe_stream_output_target
*target
)
2668 pipe_resource_reference(&target
->buffer
, NULL
);
2669 ralloc_free(target
);
2673 panfrost_set_stream_output_targets(struct pipe_context
*pctx
,
2674 unsigned num_targets
,
2675 struct pipe_stream_output_target
**targets
,
2676 const unsigned *offsets
)
2682 panfrost_setup_hardware(struct panfrost_context
*ctx
)
2684 struct pipe_context
*gallium
= (struct pipe_context
*) ctx
;
2685 struct panfrost_screen
*screen
= pan_screen(gallium
->screen
);
2687 panfrost_drm_allocate_slab(screen
, &ctx
->scratchpad
, 64*4, false, 0, 0, 0);
2688 panfrost_drm_allocate_slab(screen
, &ctx
->shaders
, 4096, true, PAN_ALLOCATE_EXECUTE
, 0, 0);
2689 panfrost_drm_allocate_slab(screen
, &ctx
->tiler_heap
, 4096, false, PAN_ALLOCATE_INVISIBLE
| PAN_ALLOCATE_GROWABLE
, 1, 128);
2690 panfrost_drm_allocate_slab(screen
, &ctx
->tiler_polygon_list
, 128*128, false, PAN_ALLOCATE_INVISIBLE
| PAN_ALLOCATE_GROWABLE
, 1, 128);
2691 panfrost_drm_allocate_slab(screen
, &ctx
->tiler_dummy
, 1, false, PAN_ALLOCATE_INVISIBLE
, 0, 0);
2694 /* New context creation, which also does hardware initialisation since I don't
2695 * know the better way to structure this :smirk: */
2697 struct pipe_context
*
2698 panfrost_create_context(struct pipe_screen
*screen
, void *priv
, unsigned flags
)
2700 struct panfrost_context
*ctx
= rzalloc(screen
, struct panfrost_context
);
2701 struct panfrost_screen
*pscreen
= pan_screen(screen
);
2702 memset(ctx
, 0, sizeof(*ctx
));
2703 struct pipe_context
*gallium
= (struct pipe_context
*) ctx
;
2705 ctx
->is_t6xx
= pscreen
->gpu_id
< 0x0700; /* Literally, "earlier than T700" */
2707 gallium
->screen
= screen
;
2709 gallium
->destroy
= panfrost_destroy
;
2711 gallium
->set_framebuffer_state
= panfrost_set_framebuffer_state
;
2713 gallium
->flush
= panfrost_flush
;
2714 gallium
->clear
= panfrost_clear
;
2715 gallium
->draw_vbo
= panfrost_draw_vbo
;
2717 gallium
->set_vertex_buffers
= panfrost_set_vertex_buffers
;
2718 gallium
->set_constant_buffer
= panfrost_set_constant_buffer
;
2719 gallium
->set_shader_buffers
= panfrost_set_shader_buffers
;
2721 gallium
->set_stencil_ref
= panfrost_set_stencil_ref
;
2723 gallium
->create_sampler_view
= panfrost_create_sampler_view
;
2724 gallium
->set_sampler_views
= panfrost_set_sampler_views
;
2725 gallium
->sampler_view_destroy
= panfrost_sampler_view_destroy
;
2727 gallium
->create_rasterizer_state
= panfrost_create_rasterizer_state
;
2728 gallium
->bind_rasterizer_state
= panfrost_bind_rasterizer_state
;
2729 gallium
->delete_rasterizer_state
= panfrost_generic_cso_delete
;
2731 gallium
->create_vertex_elements_state
= panfrost_create_vertex_elements_state
;
2732 gallium
->bind_vertex_elements_state
= panfrost_bind_vertex_elements_state
;
2733 gallium
->delete_vertex_elements_state
= panfrost_generic_cso_delete
;
2735 gallium
->create_fs_state
= panfrost_create_shader_state
;
2736 gallium
->delete_fs_state
= panfrost_delete_shader_state
;
2737 gallium
->bind_fs_state
= panfrost_bind_fs_state
;
2739 gallium
->create_vs_state
= panfrost_create_shader_state
;
2740 gallium
->delete_vs_state
= panfrost_delete_shader_state
;
2741 gallium
->bind_vs_state
= panfrost_bind_vs_state
;
2743 gallium
->create_sampler_state
= panfrost_create_sampler_state
;
2744 gallium
->delete_sampler_state
= panfrost_generic_cso_delete
;
2745 gallium
->bind_sampler_states
= panfrost_bind_sampler_states
;
2747 gallium
->create_depth_stencil_alpha_state
= panfrost_create_depth_stencil_state
;
2748 gallium
->bind_depth_stencil_alpha_state
= panfrost_bind_depth_stencil_state
;
2749 gallium
->delete_depth_stencil_alpha_state
= panfrost_delete_depth_stencil_state
;
2751 gallium
->set_sample_mask
= panfrost_set_sample_mask
;
2753 gallium
->set_clip_state
= panfrost_set_clip_state
;
2754 gallium
->set_viewport_states
= panfrost_set_viewport_states
;
2755 gallium
->set_scissor_states
= panfrost_set_scissor_states
;
2756 gallium
->set_polygon_stipple
= panfrost_set_polygon_stipple
;
2757 gallium
->set_active_query_state
= panfrost_set_active_query_state
;
2759 gallium
->create_query
= panfrost_create_query
;
2760 gallium
->destroy_query
= panfrost_destroy_query
;
2761 gallium
->begin_query
= panfrost_begin_query
;
2762 gallium
->end_query
= panfrost_end_query
;
2763 gallium
->get_query_result
= panfrost_get_query_result
;
2765 gallium
->create_stream_output_target
= panfrost_create_stream_output_target
;
2766 gallium
->stream_output_target_destroy
= panfrost_stream_output_target_destroy
;
2767 gallium
->set_stream_output_targets
= panfrost_set_stream_output_targets
;
2769 panfrost_resource_context_init(gallium
);
2770 panfrost_blend_context_init(gallium
);
2771 panfrost_compute_context_init(gallium
);
2773 panfrost_drm_init_context(ctx
);
2775 panfrost_setup_hardware(ctx
);
2778 gallium
->stream_uploader
= u_upload_create_default(gallium
);
2779 gallium
->const_uploader
= gallium
->stream_uploader
;
2780 assert(gallium
->stream_uploader
);
2782 /* Midgard supports ES modes, plus QUADS/QUAD_STRIPS/POLYGON */
2783 ctx
->draw_modes
= (1 << (PIPE_PRIM_POLYGON
+ 1)) - 1;
2785 ctx
->primconvert
= util_primconvert_create(gallium
, ctx
->draw_modes
);
2787 ctx
->blitter
= util_blitter_create(gallium
);
2788 ctx
->blitter_wallpaper
= util_blitter_create(gallium
);
2790 assert(ctx
->blitter
);
2791 assert(ctx
->blitter_wallpaper
);
2793 /* Prepare for render! */
2795 panfrost_job_init(ctx
);
2796 panfrost_emit_vertex_payload(ctx
);
2797 panfrost_emit_tiler_payload(ctx
);
2798 panfrost_invalidate_frame(ctx
);
2799 panfrost_default_shader_backend(ctx
);