| /* |
| * Copyright (C) 2019 MediaTek Inc. |
| * |
| * 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 _CPU_DSU_H_ |
| #define _CPU_DSU_H_ |
| |
| #include <linux/device.h> |
| |
| #define MODE_DISABLED 0 |
| #define MODE_INTERRUPT 1 |
| #define MODE_POLLING 2 |
| |
| #define MXNR_CPU NR_CPUS |
| |
| #define MXNR_DSU_EVENTS 8 /* max number of pmu counter for armv8 is 6+1 */ |
| struct met_dsu { |
| unsigned char mode; |
| unsigned short event; |
| unsigned long freq; |
| struct kobject *kobj_cpu_dsu; |
| }; |
| |
| struct cpu_dsu_hw { |
| const char *name; |
| int nr_cnt; |
| int (*check_event)(struct met_dsu *pmu, int idx, int event); |
| void (*start)(struct met_dsu *pmu, int count); |
| void (*stop)(int count); |
| unsigned int (*polling)(struct met_dsu *pmu, int count, unsigned int *pmu_value); |
| struct met_dsu *pmu; |
| int event_count; |
| }; |
| |
| |
| struct cpu_dsu_hw *cpu_dsu_hw_init(void); |
| |
| |
| |
| #endif /* _CPU_DSU_H_ */ |