79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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*
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* (C) COPYRIGHT 2021-2023 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_PBHA_H
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#define _KBASE_PBHA_H
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#include <linux/types.h>
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struct kbase_device;
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/**
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* kbasep_pbha_supported - check whether PBHA registers are
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* available
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*
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* @kbdev: Device pointer
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*
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* Should only be used in mali_kbase_pbha* files - thus the
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* kbase[p] prefix.
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*
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* Return: True if pbha is supported, false otherwise
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*/
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bool kbasep_pbha_supported(struct kbase_device *kbdev);
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/**
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* kbase_pbha_record_settings - record PBHA settings to be applied when
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* L2 is powered down
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*
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* @kbdev: Device pointer
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* @runtime: true if it's called at runtime and false if it's called on init.
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* @id: memory access source ID
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* @read_setting: Read setting
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* @write_setting: Write setting
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*
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* Return: 0 on success, otherwise error code.
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*/
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int kbase_pbha_record_settings(struct kbase_device *kbdev, bool runtime, unsigned int id,
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unsigned int read_setting, unsigned int write_setting);
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/**
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* kbase_pbha_write_settings - write recorded PBHA settings to GPU
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* registers
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*
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* @kbdev: Device pointer
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*
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* Only valid to call this function when L2 is powered down, otherwise
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* this will not affect PBHA settings.
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*/
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void kbase_pbha_write_settings(struct kbase_device *kbdev);
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/**
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* kbase_pbha_read_dtb - read PBHA settings from DTB and record it to be
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* applied when L2 is powered down
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*
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* @kbdev: Device pointer
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*
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* Return: 0 on success, otherwise error code.
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*/
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int kbase_pbha_read_dtb(struct kbase_device *kbdev);
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#endif /* _KBASE_PBHA_H */
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