Files
android/drivers/media/platform/mtk-vcodec/mt6833/vcodec_dvfs.h
T
threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

69 lines
2.0 KiB
C

/*
* Copyright (c) 2018 MediaTek Inc.
* Author: Cheng-Jung Ho <cheng-jung.ho@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.
*/
#ifndef __VCODEC_DVFS_H__
#define __VCODEC_DVFS_H__
#define MAX_HISTORY 10
#define MIN_SUBMIT_GAP 2000 /* 2ms */
#define MAX_SUBMIT_GAP (1000*1000) /* 1 second */
#define FREE_HIST_DELAY (5000*1000) /* Free history delay */
#define DEFAULT_MHZ 99999
struct codec_history {
void *handle;
int kcy[MAX_HISTORY];
long long submit[MAX_HISTORY];
long long start[MAX_HISTORY];
long long end[MAX_HISTORY];
long long sw_time[MAX_HISTORY];
long long submit_interval;
int cur_idx;
int cur_cnt;
int tot_kcy;
long long tot_time;
struct codec_history *next;
};
struct codec_job {
void *handle;
long long submit;
long long start;
long long end;
int hw_kcy;
int mhz;
struct codec_job *next;
};
long long get_time_us(void);
/* Add a new job to job queue */
struct codec_job *add_job(void *handle, struct codec_job **head);
/* Move target job to queue head for processing */
struct codec_job *move_job_to_head(void *handle, struct codec_job **head);
/* Update history with completed job */
int update_hist(struct codec_job *job, struct codec_history **head,
long long submit_interval);
/* Estimate required freq from job queue and previous history */
int est_freq(void *handle, struct codec_job **job, struct codec_history *head);
u64 match_freq(int target_mhz, u64 *freq_list, u32 freq_cnt);
/* Free unused/all history */
int free_hist(struct codec_history **head, int only_unused);
int free_hist_by_handle(void *handle, struct codec_history **head);
#endif