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/* 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.
*
*/
/**
* @file
* Mali structures define to support arbitration feature
*/
#ifndef _MALI_KBASE_ARBITER_DEFS_H_
#define _MALI_KBASE_ARBITER_DEFS_H_
#include "mali_kbase_arbiter_pm.h"
/**
* struct kbase_arbiter_vm_state - Struct representing the state and containing the
* data of pm work
* @kbdev: Pointer to kbase device structure (must be a valid pointer)
* @vm_state_lock: The lock protecting the VM state when arbiter is used.
* This lock must also be held whenever the VM state is being
* transitioned
* @vm_state_wait: Wait queue set when GPU is granted
* @vm_state: Current state of VM
* @vm_arb_wq: Work queue for resuming or stopping work on the GPU for use
* with the Arbiter
* @vm_suspend_work: Work item for vm_arb_wq to stop current work on GPU
* @vm_resume_work: Work item for vm_arb_wq to resume current work on GPU
* @vm_arb_starting: Work queue resume in progress
* @vm_arb_stopping: Work queue suspend in progress
* @interrupts_installed: Flag set when interrupts are installed
* @vm_request_timer: Timer to monitor GPU request
*/
struct kbase_arbiter_vm_state {
struct kbase_device *kbdev;
struct mutex vm_state_lock;
wait_queue_head_t vm_state_wait;
enum kbase_vm_state vm_state;
struct workqueue_struct *vm_arb_wq;
struct work_struct vm_suspend_work;
struct work_struct vm_resume_work;
bool vm_arb_starting;
bool vm_arb_stopping;
bool interrupts_installed;
struct hrtimer vm_request_timer;
};
/**
* struct kbase_arbiter_device - Representing an instance of arbiter device,
* allocated from the probe method of Mali driver
* @arb_if: Pointer to the arbiter interface device
* @arb_dev: Pointer to the arbiter device
* @arb_freq: GPU clock frequency retrieved from arbiter.
*/
struct kbase_arbiter_device {
struct arbiter_if_dev *arb_if;
struct device *arb_dev;
struct kbase_arbiter_freq arb_freq;
};
#endif /* _MALI_KBASE_ARBITER_DEFS_H_ */
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