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