/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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*
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* (C) COPYRIGHT 2020-2021 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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#ifndef _KBASE_CSF_CPU_QUEUE_DEBUGFS_H_
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#define _KBASE_CSF_CPU_QUEUE_DEBUGFS_H_
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#include <asm/atomic.h>
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#include <linux/types.h>
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#include "mali_kbase.h"
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/* Forward declaration */
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struct base_csf_notification;
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#define MALI_CSF_CPU_QUEUE_DEBUGFS_VERSION 0
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/* CPU queue dump status */
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/* Dumping is done or no dumping is in progress. */
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#define BASE_CSF_CPU_QUEUE_DUMP_COMPLETE 0
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/* Dumping request is pending. */
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#define BASE_CSF_CPU_QUEUE_DUMP_PENDING 1
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/* Dumping request is issued to Userspace */
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#define BASE_CSF_CPU_QUEUE_DUMP_ISSUED 2
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/**
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* kbase_csf_cpu_queue_debugfs_init() - Create a debugfs entry for per context cpu queue(s)
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*
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* @kctx: The kbase_context for which to create the debugfs entry
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*/
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void kbase_csf_cpu_queue_debugfs_init(struct kbase_context *kctx);
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/**
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* kbase_csf_cpu_queue_read_dump_req - Read cpu queue dump request event
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*
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* @kctx: The kbase_context which cpu queue dumpped belongs to
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* @req: Notification with cpu queue dump request.
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*
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* Return: true if needs CPU queue dump, or false otherwise.
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*/
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bool kbase_csf_cpu_queue_read_dump_req(struct kbase_context *kctx,
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struct base_csf_notification *req);
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/**
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* kbase_csf_cpu_queue_dump_needed - Check the requirement for cpu queue dump
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*
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* @kctx: The kbase_context which cpu queue dumpped belongs to
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*
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* Return: true if it needs cpu queue dump, or false otherwise.
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*/
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static inline bool kbase_csf_cpu_queue_dump_needed(struct kbase_context *kctx)
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{
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#if IS_ENABLED(CONFIG_DEBUG_FS)
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return (atomic_read(&kctx->csf.cpu_queue.dump_req_status) ==
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BASE_CSF_CPU_QUEUE_DUMP_ISSUED);
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#else
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return false;
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#endif
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}
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/**
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* kbase_csf_cpu_queue_dump - dump buffer containing cpu queue information to debugfs
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*
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* @kctx: The kbase_context which cpu queue dumpped belongs to
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* @buffer: Buffer containing the cpu queue information.
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* @buf_size: Buffer size.
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*
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* Return: Return 0 for dump successfully, or error code.
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*/
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int kbase_csf_cpu_queue_dump(struct kbase_context *kctx,
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u64 buffer, size_t buf_size);
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#endif /* _KBASE_CSF_CPU_QUEUE_DEBUGFS_H_ */
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