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// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
/*
*
* (C) COPYRIGHT 2019-2023 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
*/
#include <tl/mali_kbase_tracepoints.h>
#include <tl/mali_kbase_timeline.h>
#include <tl/mali_kbase_timeline_priv.h>
#include <mali_kbase.h>
void kbase_create_timeline_objects(struct kbase_device *kbdev)
{
unsigned int lpu_id;
int as_nr;
struct kbase_context *kctx;
struct kbase_timeline *timeline = kbdev->timeline;
struct kbase_tlstream *summary = &timeline->streams[TL_STREAM_TYPE_OBJ_SUMMARY];
/* Summarize the LPU objects. */
for (lpu_id = 0; lpu_id < kbdev->gpu_props.num_job_slots; lpu_id++) {
void *lpu = &kbdev->gpu_props.js_features[lpu_id];
__kbase_tlstream_tl_new_lpu(summary, lpu, lpu_id, 0);
}
/* Summarize the Address Space objects. */
for (as_nr = 0; as_nr < kbdev->nr_hw_address_spaces; as_nr++)
__kbase_tlstream_tl_new_as(summary, &kbdev->as[as_nr], (u32)as_nr);
/* Create GPU object and make it retain all LPUs and address spaces. */
__kbase_tlstream_tl_new_gpu(summary, kbdev, kbdev->id, kbdev->gpu_props.num_cores);
for (lpu_id = 0; lpu_id < kbdev->gpu_props.num_job_slots; lpu_id++) {
void *lpu = &kbdev->gpu_props.js_features[lpu_id];
__kbase_tlstream_tl_lifelink_lpu_gpu(summary, lpu, kbdev);
}
for (as_nr = 0; as_nr < kbdev->nr_hw_address_spaces; as_nr++)
__kbase_tlstream_tl_lifelink_as_gpu(summary, &kbdev->as[as_nr], kbdev);
/* Lock the context list, to ensure no changes to the list are made
* while we're summarizing the contexts and their contents.
*/
mutex_lock(&timeline->tl_kctx_list_lock);
/* For each context in the device... */
list_for_each_entry(kctx, &timeline->tl_kctx_list, tl_kctx_list_node) {
/* Summarize the context itself */
__kbase_tlstream_tl_new_ctx(summary, kctx, kctx->id, (u32)(kctx->tgid));
}
/* Reset body stream buffers while holding the kctx lock.
* This ensures we can't fire both summary and normal tracepoints for
* the same objects.
* If we weren't holding the lock, it's possible that the summarized
* objects could have been created, destroyed, or used after we
* constructed the summary stream tracepoints, but before we reset
* the body stream, resulting in losing those object event tracepoints.
*/
kbase_timeline_streams_body_reset(timeline);
mutex_unlock(&timeline->tl_kctx_list_lock);
/* Static object are placed into summary packet that needs to be
* transmitted first. Flush all streams to make it available to
* user space.
*/
kbase_timeline_streams_flush(timeline);
}
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