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/*
* Copyright (C) 2019 Collabora, Ltd.
* Copyright (C) 2019 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors (Collabora):
* Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
*
*/
#include "pan_context.h"
#include "pan_bo.h"
#include "pan_shader.h"
#include "util/u_memory.h"
#include "nir_serialize.h"
/* Compute CSOs are tracked like graphics shader CSOs, but are
* considerably simpler. We do not implement multiple
* variants/keying. So the CSO create function just goes ahead and
* compiles the thing. */
static void *
panfrost_create_compute_state(
struct pipe_context *pctx,
const struct pipe_compute_state *cso)
{
struct panfrost_context *ctx = pan_context(pctx);
struct panfrost_screen *screen = pan_screen(pctx->screen);
struct panfrost_shader_variants *so = CALLOC_STRUCT(panfrost_shader_variants);
so->cbase = *cso;
so->is_compute = true;
struct panfrost_shader_state *v = calloc(1, sizeof(*v));
so->variants = v;
so->variant_count = 1;
so->active_variant = 0;
if (cso->ir_type == PIPE_SHADER_IR_NIR_SERIALIZED) {
struct blob_reader reader;
const struct pipe_binary_program_header *hdr = cso->prog;
blob_reader_init(&reader, hdr->blob, hdr->num_bytes);
const struct nir_shader_compiler_options *options =
screen->vtbl.get_compiler_options();
so->cbase.prog = nir_deserialize(NULL, options, &reader);
so->cbase.ir_type = PIPE_SHADER_IR_NIR;
}
panfrost_shader_compile(pctx->screen, &ctx->shaders, &ctx->descs,
so->cbase.ir_type, so->cbase.prog, MESA_SHADER_COMPUTE,
v);
/* There are no variants so we won't need the NIR again */
ralloc_free((void *)so->cbase.prog);
so->cbase.prog = NULL;
return so;
}
static void
panfrost_bind_compute_state(struct pipe_context *pipe, void *cso)
{
struct panfrost_context *ctx = pan_context(pipe);
ctx->shader[PIPE_SHADER_COMPUTE] = cso;
}
static void
panfrost_delete_compute_state(struct pipe_context *pipe, void *cso)
{
struct panfrost_shader_variants *so =
(struct panfrost_shader_variants *)cso;
free(so->variants);
free(cso);
}
static void
panfrost_set_compute_resources(struct pipe_context *pctx,
unsigned start, unsigned count,
struct pipe_surface **resources)
{
/* TODO */
}
static void
panfrost_set_global_binding(struct pipe_context *pctx,
unsigned first, unsigned count,
struct pipe_resource **resources,
uint32_t **handles)
{
if (!resources)
return;
struct panfrost_context *ctx = pan_context(pctx);
struct panfrost_batch *batch = panfrost_get_batch_for_fbo(ctx);
for (unsigned i = first; i < first + count; ++i) {
struct panfrost_resource *rsrc = pan_resource(resources[i]);
panfrost_batch_write_rsrc(batch, rsrc, PIPE_SHADER_COMPUTE);
util_range_add(&rsrc->base, &rsrc->valid_buffer_range,
0, rsrc->base.width0);
/* The handle points to uint32_t, but space is allocated for 64 bits */
memcpy(handles[i], &rsrc->image.data.bo->ptr.gpu, sizeof(mali_ptr));
}
}
static void
panfrost_memory_barrier(struct pipe_context *pctx, unsigned flags)
{
/* TODO: Be smart and only flush the minimum needed, maybe emitting a
* cache flush job if that would help */
panfrost_flush_all_batches(pan_context(pctx), "Memory barrier");
}
void
panfrost_compute_context_init(struct pipe_context *pctx)
{
pctx->create_compute_state = panfrost_create_compute_state;
pctx->bind_compute_state = panfrost_bind_compute_state;
pctx->delete_compute_state = panfrost_delete_compute_state;
pctx->set_compute_resources = panfrost_set_compute_resources;
pctx->set_global_binding = panfrost_set_global_binding;
pctx->memory_barrier = panfrost_memory_barrier;
}
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