53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2021, The Linux Foundation. All rights reserved.
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*/
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#ifndef _MSM_KGSL_H
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#define _MSM_KGSL_H
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/**
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* struct kgsl_gpu_freq_stat - Per GPU freq stat struct
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* @freq: GPU frequency in Hz
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* @active_time: GPU busy time in usecs
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* @idle_time: GPU idle time in usec
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*/
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struct kgsl_gpu_freq_stat {
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u32 freq;
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u64 active_time;
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u64 idle_time;
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};
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/**
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* kgsl_gpu_num_freqs - Get number of available GPU frequencies
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*
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* Return: number of available frequencies on success or negative error
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* on failure
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*/
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int kgsl_gpu_num_freqs(void);
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/**
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* kgsl_gpu_stat - Get per GPU freq stats
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* @stats: Array of struct kgsl_gpu_freq_stat to hold stats
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* @numfreq: Number of entries in @stats
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*
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* This function will populate @stats with per freq stats.
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* Number of entries in @stats array must be greater or
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* equal to value returned by function kgsl_gpu_num_freqs
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*
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* Return: 0 on success or negative error on failure
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*/
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int kgsl_gpu_stat(struct kgsl_gpu_freq_stat *stats, u32 numfreq);
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/**
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* kgsl_gpu_frame_count - Get number of frames already processed by GPU
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* @pid: pid of the process for which frame count is required
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* @frame_count: pointer to a u64 to store frame count
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*
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* Return: zero on success and number of frames processed corresponding
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* to @pid in @frame_count or negative error on failure
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*/
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int kgsl_gpu_frame_count(pid_t pid, u64 *frame_count);
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#endif /* _MSM_KGSL_H */
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