113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/*
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* Copyright © 2018 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <stdlib.h>
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#include "util/u_math.h"
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#include "iris_binder.h"
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#include "iris_bufmgr.h"
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#include "iris_context.h"
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/**
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* Reserve a block of space in the binder.
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*/
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uint32_t
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iris_binder_reserve(struct iris_batch *batch, unsigned size)
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{
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struct iris_binder *binder = &batch->binder;
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assert(size > 0);
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assert((binder->insert_point % 64) == 0);
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/* If we can't fit all stages in the binder, flush the batch which
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* will cause us to gain a new empty binder.
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*/
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if (binder->insert_point + size > IRIS_BINDER_SIZE)
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iris_batch_flush(batch);
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uint32_t offset = binder->insert_point;
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/* It had better fit now. */
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assert(offset + size <= IRIS_BINDER_SIZE);
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binder->insert_point = align(binder->insert_point + size, 64);
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iris_use_pinned_bo(batch, binder->bo, false);
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return offset;
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}
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/**
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* Reserve and record binder space for 3D pipeline shader stages.
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*/
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void
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iris_binder_reserve_3d(struct iris_batch *batch,
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struct iris_compiled_shader **shaders)
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{
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struct iris_binder *binder = &batch->binder;
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unsigned total_size = 0;
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unsigned sizes[MESA_SHADER_STAGES] = {};
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for (int stage = 0; stage <= MESA_SHADER_FRAGMENT; stage++) {
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if (!shaders[stage])
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continue;
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const struct brw_stage_prog_data *prog_data =
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(const void *) shaders[stage]->prog_data;
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sizes[stage] = align(prog_data->binding_table.size_bytes, 64);
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total_size += sizes[stage];
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}
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uint32_t offset = iris_binder_reserve(batch, total_size);
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/* Assign space and record the current binding table. */
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for (int stage = 0; stage <= MESA_SHADER_FRAGMENT; stage++) {
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binder->bt_offset[stage] = sizes[stage] > 0 ? offset : 0;
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offset += sizes[stage];
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}
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}
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/* Avoid using offset 0, tools consider it NULL */
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#define INIT_INSERT_POINT 64
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void
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iris_init_binder(struct iris_binder *binder, struct iris_bufmgr *bufmgr)
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{
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binder->bo =
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iris_bo_alloc(bufmgr, "binder", IRIS_BINDER_SIZE, IRIS_MEMZONE_BINDER);
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binder->map = iris_bo_map(NULL, binder->bo, MAP_WRITE);
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binder->insert_point = INIT_INSERT_POINT;
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}
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bool
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iris_binder_is_empty(struct iris_binder *binder)
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{
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return binder->insert_point <= INIT_INSERT_POINT;
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}
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void
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iris_destroy_binder(struct iris_binder *binder)
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{
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iris_bo_unreference(binder->bo);
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}
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