103 lines
3 KiB
C
103 lines
3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* (C) COPYRIGHT 2021 Samsung Electronics Inc. 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 licence.
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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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#ifndef _GPEX_GTS_H_
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#define _GPEX_GTS_H_
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#include <linux/device.h>
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#include <mali_exynos_ioctl.h>
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#define HCM_MODE_A (1 << 0)
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#define HCM_MODE_B (1 << 1)
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#define HCM_MODE_C (1 << 2)
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/**
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* gpex_gts_get_ioctl_gts_info() - get current system info required for gts to work
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* @info: structure to fill in with current system info
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*
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* This function is called via ioctl from user space to pass the system info up to
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* the userspace for further processing
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*/
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int gpex_gts_get_ioctl_gts_info(struct mali_exynos_ioctl_gts_info *info);
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/**
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* gpex_gts_update_jobslot_util() - update gpu job slot utilization data
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* @gpu_active: whether gpu was active or idle
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* @ns_time: amount of time in ns the gpu was active or idle for
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*
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* data collected through this function is used for overall operation of GTS
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*/
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void gpex_gts_update_jobslot_util(bool gpu_active, u32 ns_time);
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/**
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* gpex_gts_set_jobslot_status() - set the jobslot status to active or inactive
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* @is_active: pass true for marking jobslot as active. false otherwise
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*
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* data collected here is used for overall operation of GTS
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*/
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void gpex_gts_set_jobslot_status(bool is_active);
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/**
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* gpex_gts_clear() - clear the jobslot utilization to 0
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*/
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void gpex_gts_clear(void);
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/**
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* gpex_gts_set_hcm_mode() - set the mode of heavy compute mode
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* @hcm_mode_val: hcm mode to set to
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*
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* HCM_MODE_A (1 << 0)
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* HCM_MODE_B (1 << 1)
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* HCM_MODE_C (1 << 2)
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*/
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void gpex_gts_set_hcm_mode(int hcm_mode_val);
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/**
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* gpex_gts_get_hcm_mode() - get the current heavy compute mode
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*
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* Return: current heavy compute mode
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*/
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int gpex_gts_get_hcm_mode(void);
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/**
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* gpex_gts_update_gpu_data() - calculate the values required for gts using current status
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*
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* values calculated here are stored internally, and then are read by user space through ioctl
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* (via gpex_gts_get_ioctl_gts_info function)
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*
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* Return: true if all values have been updated (return value not used currently)
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*/
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bool gpex_gts_update_gpu_data(void);
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/**
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* gpex_gts_init() - initializes gpex_gts module
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* @dev: mali device struct
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*
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* Return: 0 on success
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*/
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int gpex_gts_init(struct device **dev);
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/**
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* gpex_gts_term() - terminates gpex_gts module
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*/
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void gpex_gts_term(void);
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#endif /* _GPEX_GTS_H_ */
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