// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
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/*
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*
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* (C) COPYRIGHT 2019-2021 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU license.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
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*
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*/
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#include <tl/mali_kbase_tracepoints.h>
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#include <tl/mali_kbase_timeline.h>
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#include <tl/mali_kbase_timeline_priv.h>
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#include <mali_kbase.h>
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void kbase_create_timeline_objects(struct kbase_device *kbdev)
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{
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unsigned int lpu_id;
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unsigned int as_nr;
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struct kbase_context *kctx;
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struct kbase_timeline *timeline = kbdev->timeline;
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struct kbase_tlstream *summary =
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&timeline->streams[TL_STREAM_TYPE_OBJ_SUMMARY];
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/* Summarize the LPU objects. */
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for (lpu_id = 0; lpu_id < kbdev->gpu_props.num_job_slots; lpu_id++) {
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u32 *lpu =
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&kbdev->gpu_props.props.raw_props.js_features[lpu_id];
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__kbase_tlstream_tl_new_lpu(summary, lpu, lpu_id, *lpu);
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}
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/* Summarize the Address Space objects. */
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for (as_nr = 0; as_nr < kbdev->nr_hw_address_spaces; as_nr++)
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__kbase_tlstream_tl_new_as(summary, &kbdev->as[as_nr], as_nr);
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/* Create GPU object and make it retain all LPUs and address spaces. */
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__kbase_tlstream_tl_new_gpu(summary,
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kbdev,
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kbdev->gpu_props.props.raw_props.gpu_id,
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kbdev->gpu_props.num_cores);
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for (lpu_id = 0; lpu_id < kbdev->gpu_props.num_job_slots; lpu_id++) {
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void *lpu =
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&kbdev->gpu_props.props.raw_props.js_features[lpu_id];
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__kbase_tlstream_tl_lifelink_lpu_gpu(summary, lpu, kbdev);
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}
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for (as_nr = 0; as_nr < kbdev->nr_hw_address_spaces; as_nr++)
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__kbase_tlstream_tl_lifelink_as_gpu(summary,
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&kbdev->as[as_nr],
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kbdev);
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/* Lock the context list, to ensure no changes to the list are made
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* while we're summarizing the contexts and their contents.
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*/
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mutex_lock(&timeline->tl_kctx_list_lock);
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/* For each context in the device... */
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list_for_each_entry(kctx, &timeline->tl_kctx_list, tl_kctx_list_node) {
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/* Summarize the context itself */
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__kbase_tlstream_tl_new_ctx(summary,
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kctx,
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kctx->id,
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(u32)(kctx->tgid));
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}
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/* Reset body stream buffers while holding the kctx lock.
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* This ensures we can't fire both summary and normal tracepoints for
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* the same objects.
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* If we weren't holding the lock, it's possible that the summarized
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* objects could have been created, destroyed, or used after we
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* constructed the summary stream tracepoints, but before we reset
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* the body stream, resulting in losing those object event tracepoints.
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*/
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kbase_timeline_streams_body_reset(timeline);
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mutex_unlock(&timeline->tl_kctx_list_lock);
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/* Static object are placed into summary packet that needs to be
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* transmitted first. Flush all streams to make it available to
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* user space.
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*/
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kbase_timeline_streams_flush(timeline);
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}
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