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/*
* Mesa 3-D graphics library
*
* Copyright (C) 2012-2013 LunarG, 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 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:
* Chia-I Wu <olv@lunarg.com>
*/
#include "util/u_upload_mgr.h"
#include "ilo_context.h"
#include "ilo_render.h"
#include "ilo_shader.h"
#include "ilo_gpgpu.h"
static void
launch_grid(struct ilo_context *ilo,
const uint *block_layout, const uint *grid_layout,
const struct pipe_constant_buffer *input, uint32_t pc)
{
const unsigned grid_offset[3] = { 0, 0, 0 };
const unsigned thread_group_size =
block_layout[0] * block_layout[1] * block_layout[2];
int max_len, before_space;
ilo_cp_set_owner(ilo->cp, INTEL_RING_RENDER, NULL);
max_len = ilo_render_get_launch_grid_len(ilo->render, &ilo->state_vector);
max_len += ilo_render_get_flush_len(ilo->render) * 2;
if (max_len > ilo_cp_space(ilo->cp)) {
ilo_cp_submit(ilo->cp, "out of space");
assert(max_len <= ilo_cp_space(ilo->cp));
}
before_space = ilo_cp_space(ilo->cp);
while (true) {
struct ilo_builder_snapshot snapshot;
ilo_builder_batch_snapshot(&ilo->cp->builder, &snapshot);
ilo_render_emit_launch_grid(ilo->render, &ilo->state_vector,
grid_offset, grid_layout, thread_group_size, input, pc);
if (!ilo_builder_validate(&ilo->cp->builder, 0, NULL)) {
ilo_builder_batch_restore(&ilo->cp->builder, &snapshot);
/* flush and try again */
if (ilo_builder_batch_used(&ilo->cp->builder)) {
ilo_cp_submit(ilo->cp, "out of aperture");
continue;
}
}
break;
}
/* sanity check size estimation */
assert(before_space - ilo_cp_space(ilo->cp) <= max_len);
}
static void
ilo_launch_grid(struct pipe_context *pipe, const struct pipe_grid_info *info)
{
struct ilo_context *ilo = ilo_context(pipe);
struct ilo_shader_state *cs = ilo->state_vector.cs;
struct pipe_constant_buffer input_buf;
memset(&input_buf, 0, sizeof(input_buf));
input_buf.buffer_size =
ilo_shader_get_kernel_param(cs, ILO_KERNEL_CS_INPUT_SIZE);
if (input_buf.buffer_size) {
u_upload_data(ilo->uploader, 0, input_buf.buffer_size, 16, info->input,
&input_buf.buffer_offset, &input_buf.buffer);
}
ilo_shader_cache_upload(ilo->shader_cache, &ilo->cp->builder);
launch_grid(ilo, info->block, info->grid, &input_buf, info->pc);
ilo_render_invalidate_hw(ilo->render);
if (ilo_debug & ILO_DEBUG_NOCACHE)
ilo_render_emit_flush(ilo->render);
if (input_buf.buffer_size)
pipe_resource_reference(&input_buf.buffer, NULL);
}
/**
* Initialize GPGPU-related functions.
*/
void
ilo_init_gpgpu_functions(struct ilo_context *ilo)
{
ilo->base.launch_grid = ilo_launch_grid;
}
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