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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
*
* (C) COPYRIGHT 2014-2015, 2018, 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.
*
*/
/**
* Base kernel property query backend APIs
*/
#ifndef _KBASE_HWACCESS_GPUPROPS_H_
#define _KBASE_HWACCESS_GPUPROPS_H_
/**
* kbase_backend_gpuprops_get() - Fill @regdump with GPU properties read from
* GPU
* @kbdev: Device pointer
* @regdump: Pointer to struct kbase_gpuprops_regdump structure
*
* The caller should ensure that GPU remains powered-on during this function.
*
* Return: Zero for succeess or a Linux error code
*/
int kbase_backend_gpuprops_get(struct kbase_device *kbdev,
struct kbase_gpuprops_regdump *regdump);
/**
* kbase_backend_gpuprops_get_curr_config() - Fill @curr_config_regdump with
* relevant GPU properties read from
* the GPU registers.
* @kbdev: Device pointer.
* @curr_config_regdump: Pointer to struct kbase_current_config_regdump
* structure.
*
* The caller should ensure that GPU remains powered-on during this function and
* the caller must ensure this function returns success before using the values
* returned in the curr_config_regdump in any part of the kernel.
*
* Return: Zero for succeess or a Linux error code
*/
int kbase_backend_gpuprops_get_curr_config(struct kbase_device *kbdev,
struct kbase_current_config_regdump *curr_config_regdump);
/**
* kbase_backend_gpuprops_get_features - Fill @regdump with GPU properties read
* from GPU
* @kbdev: Device pointer
* @regdump: Pointer to struct kbase_gpuprops_regdump structure
*
* This function reads GPU properties that are dependent on the hardware
* features bitmask. It will power-on the GPU if required.
*
* Return: Zero for succeess or a Linux error code
*/
int kbase_backend_gpuprops_get_features(struct kbase_device *kbdev,
struct kbase_gpuprops_regdump *regdump);
/**
* kbase_backend_gpuprops_get_l2_features - Fill @regdump with L2_FEATURES read
* from GPU
* @kbdev: Device pointer
* @regdump: Pointer to struct kbase_gpuprops_regdump structure
*
* This function reads L2_FEATURES register that is dependent on the hardware
* features bitmask. It will power-on the GPU if required.
*
* Return: Zero on success, Linux error code on failure
*/
int kbase_backend_gpuprops_get_l2_features(struct kbase_device *kbdev,
struct kbase_gpuprops_regdump *regdump);
#endif /* _KBASE_HWACCESS_GPUPROPS_H_ */
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