2 * Copyright (C) 2019 Collabora, Ltd.
3 * Copyright (C) 2019 Red Hat Inc.
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
24 * Authors (Collabora):
25 * Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
29 #include "pan_context.h"
30 #include "pan_cmdstream.h"
32 #include "util/u_memory.h"
33 #include "nir_serialize.h"
35 /* Compute CSOs are tracked like graphics shader CSOs, but are
36 * considerably simpler. We do not implement multiple
37 * variants/keying. So the CSO create function just goes ahead and
38 * compiles the thing. */
41 panfrost_create_compute_state(
42 struct pipe_context
*pctx
,
43 const struct pipe_compute_state
*cso
)
45 struct panfrost_context
*ctx
= pan_context(pctx
);
47 struct panfrost_shader_variants
*so
= CALLOC_STRUCT(panfrost_shader_variants
);
49 so
->is_compute
= true;
51 struct panfrost_shader_state
*v
= calloc(1, sizeof(*v
));
54 so
->variant_count
= 1;
55 so
->active_variant
= 0;
57 /* calloc, instead of malloc - to zero unused fields */
58 v
->tripipe
= CALLOC_STRUCT(mali_shader_meta
);
60 if (cso
->ir_type
== PIPE_SHADER_IR_NIR_SERIALIZED
) {
61 struct blob_reader reader
;
62 const struct pipe_binary_program_header
*hdr
= cso
->prog
;
64 blob_reader_init(&reader
, hdr
->blob
, hdr
->num_bytes
);
65 so
->cbase
.prog
= nir_deserialize(NULL
, &midgard_nir_options
, &reader
);
66 so
->cbase
.ir_type
= PIPE_SHADER_IR_NIR
;
69 panfrost_shader_compile(ctx
, v
->tripipe
,
70 so
->cbase
.ir_type
, so
->cbase
.prog
,
71 MESA_SHADER_COMPUTE
, v
, NULL
);
77 panfrost_bind_compute_state(struct pipe_context
*pipe
, void *cso
)
79 struct panfrost_context
*ctx
= pan_context(pipe
);
81 struct panfrost_shader_variants
*variants
=
82 (struct panfrost_shader_variants
*) cso
;
84 ctx
->shader
[PIPE_SHADER_COMPUTE
] = variants
;
88 panfrost_delete_compute_state(struct pipe_context
*pipe
, void *cso
)
93 /* Launch grid is the compute equivalent of draw_vbo, so in this routine, we
94 * construct the COMPUTE job and some of its payload.
98 panfrost_launch_grid(struct pipe_context
*pipe
,
99 const struct pipe_grid_info
*info
)
101 struct panfrost_context
*ctx
= pan_context(pipe
);
103 /* TODO: Do we want a special compute-only batch? */
104 struct panfrost_batch
*batch
= panfrost_get_batch_for_fbo(ctx
);
106 ctx
->compute_grid
= info
;
109 struct midgard_payload_vertex_tiler
*payload
= &ctx
->payloads
[PIPE_SHADER_COMPUTE
];
111 /* We implement OpenCL inputs as uniforms (or a UBO -- same thing), so
112 * reuse the graphics path for this by lowering to Gallium */
114 struct pipe_constant_buffer ubuf
= {
117 .buffer_size
= ctx
->shader
[PIPE_SHADER_COMPUTE
]->cbase
.req_input_mem
,
118 .user_buffer
= info
->input
122 pipe
->set_constant_buffer(pipe
, PIPE_SHADER_COMPUTE
, 0, &ubuf
);
124 panfrost_patch_shader_state(ctx
, PIPE_SHADER_COMPUTE
);
125 panfrost_emit_shader_meta(batch
, PIPE_SHADER_COMPUTE
, payload
);
126 panfrost_emit_const_buf(batch
, PIPE_SHADER_COMPUTE
, payload
);
127 panfrost_emit_shared_memory(batch
, info
, payload
);
129 /* Invoke according to the grid info */
131 panfrost_pack_work_groups_compute(&payload
->prefix
,
132 info
->grid
[0], info
->grid
[1], info
->grid
[2],
133 info
->block
[0], info
->block
[1], info
->block
[2], false);
135 panfrost_new_job(batch
, JOB_TYPE_COMPUTE
, true, 0, payload
, sizeof(*payload
), false);
136 panfrost_flush_all_batches(ctx
, true);
140 panfrost_set_compute_resources(struct pipe_context
*pctx
,
141 unsigned start
, unsigned count
,
142 struct pipe_surface
**resources
)
148 panfrost_set_global_binding(struct pipe_context
*pctx
,
149 unsigned first
, unsigned count
,
150 struct pipe_resource
**resources
,
157 panfrost_memory_barrier(struct pipe_context
*pctx
, unsigned flags
)
163 panfrost_compute_context_init(struct pipe_context
*pctx
)
165 pctx
->create_compute_state
= panfrost_create_compute_state
;
166 pctx
->bind_compute_state
= panfrost_bind_compute_state
;
167 pctx
->delete_compute_state
= panfrost_delete_compute_state
;
169 pctx
->launch_grid
= panfrost_launch_grid
;
171 pctx
->set_compute_resources
= panfrost_set_compute_resources
;
172 pctx
->set_global_binding
= panfrost_set_global_binding
;
174 pctx
->memory_barrier
= panfrost_memory_barrier
;