/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
|
/*
|
*
|
* (C) COPYRIGHT 2019-2021 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.
|
*
|
*/
|
|
#if !defined(_KBASE_TIMELINE_PRIV_H)
|
#define _KBASE_TIMELINE_PRIV_H
|
|
#include <mali_kbase.h>
|
#include "mali_kbase_tlstream.h"
|
|
#if MALI_USE_CSF
|
#include "csf/mali_kbase_csf_tl_reader.h"
|
#include "csf/mali_kbase_csf_trace_buffer.h"
|
#endif
|
|
#include <linux/timer.h>
|
#include <linux/atomic.h>
|
#include <linux/mutex.h>
|
|
/* The minimum amount of time timeline must be acquired for before release is
|
* allowed, to prevent DoS attacks.
|
*/
|
#define TIMELINE_HYSTERESIS_TIMEOUT_MS ((s64)500)
|
|
/**
|
* struct kbase_timeline - timeline state structure
|
* @streams: The timeline streams generated by kernel
|
* @tl_kctx_list: List of contexts for timeline.
|
* @tl_kctx_list_lock: Lock to protect @tl_kctx_list.
|
* @autoflush_timer: Autoflush timer
|
* @autoflush_timer_active: If non-zero autoflush timer is active
|
* @reader_lock: Reader lock. Only one reader is allowed to
|
* have access to the timeline streams at any given time.
|
* @event_queue: Timeline stream event queue
|
* @bytes_collected: Number of bytes read by user
|
* @timeline_flags: Zero, if timeline is disabled. Timeline stream flags
|
* otherwise. See kbase_timeline_io_acquire().
|
* @obj_header_btc: Remaining bytes to copy for the object stream header
|
* @aux_header_btc: Remaining bytes to copy for the aux stream header
|
* @last_acquire_time: The time at which timeline was last acquired.
|
* @csf_tl_reader: CSFFW timeline reader
|
*/
|
struct kbase_timeline {
|
struct kbase_tlstream streams[TL_STREAM_TYPE_COUNT];
|
struct list_head tl_kctx_list;
|
struct mutex tl_kctx_list_lock;
|
struct timer_list autoflush_timer;
|
atomic_t autoflush_timer_active;
|
struct mutex reader_lock;
|
wait_queue_head_t event_queue;
|
#if MALI_UNIT_TEST
|
atomic_t bytes_collected;
|
#endif /* MALI_UNIT_TEST */
|
atomic_t *timeline_flags;
|
size_t obj_header_btc;
|
size_t aux_header_btc;
|
ktime_t last_acquire_time;
|
#if MALI_USE_CSF
|
struct kbase_csf_tl_reader csf_tl_reader;
|
#endif
|
};
|
|
extern const struct file_operations kbasep_tlstream_fops;
|
|
void kbase_create_timeline_objects(struct kbase_device *kbdev);
|
|
#endif /* _KBASE_TIMELINE_PRIV_H */
|
