26d518530b
Move common PPMU code from exynos[45]_bus.c to exynos_ppmu.c. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com/
|
|
*
|
|
* EXYNOS PPMU header
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef __DEVFREQ_EXYNOS_PPMU_H
|
|
#define __DEVFREQ_EXYNOS_PPMU_H __FILE__
|
|
|
|
#include <linux/ktime.h>
|
|
|
|
/* For PPMU Control */
|
|
#define PPMU_ENABLE BIT(0)
|
|
#define PPMU_DISABLE 0x0
|
|
#define PPMU_CYCLE_RESET BIT(1)
|
|
#define PPMU_COUNTER_RESET BIT(2)
|
|
|
|
#define PPMU_ENABLE_COUNT0 BIT(0)
|
|
#define PPMU_ENABLE_COUNT1 BIT(1)
|
|
#define PPMU_ENABLE_COUNT2 BIT(2)
|
|
#define PPMU_ENABLE_COUNT3 BIT(3)
|
|
#define PPMU_ENABLE_CYCLE BIT(31)
|
|
|
|
#define PPMU_CNTENS 0x10
|
|
#define PPMU_FLAG 0x50
|
|
#define PPMU_CCNT_OVERFLOW BIT(31)
|
|
#define PPMU_CCNT 0x100
|
|
|
|
#define PPMU_PMCNT0 0x110
|
|
#define PPMU_PMCNT_OFFSET 0x10
|
|
#define PMCNT_OFFSET(x) (PPMU_PMCNT0 + (PPMU_PMCNT_OFFSET * x))
|
|
|
|
#define PPMU_BEVT0SEL 0x1000
|
|
#define PPMU_BEVTSEL_OFFSET 0x100
|
|
#define PPMU_BEVTSEL(x) (PPMU_BEVT0SEL + (ch * PPMU_BEVTSEL_OFFSET))
|
|
|
|
/* For Event Selection */
|
|
#define RD_DATA_COUNT 0x5
|
|
#define WR_DATA_COUNT 0x6
|
|
#define RDWR_DATA_COUNT 0x7
|
|
|
|
enum ppmu_counter {
|
|
PPMU_PMNCNT0,
|
|
PPMU_PMCCNT1,
|
|
PPMU_PMNCNT2,
|
|
PPMU_PMNCNT3,
|
|
PPMU_PMNCNT_MAX,
|
|
};
|
|
|
|
struct bus_opp_table {
|
|
unsigned int idx;
|
|
unsigned long clk;
|
|
unsigned long volt;
|
|
};
|
|
|
|
struct exynos_ppmu {
|
|
void __iomem *hw_base;
|
|
unsigned int ccnt;
|
|
unsigned int event[PPMU_PMNCNT_MAX];
|
|
unsigned int count[PPMU_PMNCNT_MAX];
|
|
unsigned long long ns;
|
|
ktime_t reset_time;
|
|
bool ccnt_overflow;
|
|
bool count_overflow[PPMU_PMNCNT_MAX];
|
|
};
|
|
|
|
struct busfreq_ppmu_data {
|
|
struct exynos_ppmu *ppmu;
|
|
int ppmu_end;
|
|
};
|
|
|
|
void exynos_ppmu_reset(void __iomem *ppmu_base);
|
|
void exynos_ppmu_setevent(void __iomem *ppmu_base, unsigned int ch,
|
|
unsigned int evt);
|
|
void exynos_ppmu_start(void __iomem *ppmu_base);
|
|
void exynos_ppmu_stop(void __iomem *ppmu_base);
|
|
unsigned int exynos_ppmu_read(void __iomem *ppmu_base, unsigned int ch);
|
|
void busfreq_mon_reset(struct busfreq_ppmu_data *ppmu_data);
|
|
void exynos_read_ppmu(struct busfreq_ppmu_data *ppmu_data);
|
|
int exynos_get_busier_ppmu(struct busfreq_ppmu_data *ppmu_data);
|
|
#endif /* __DEVFREQ_EXYNOS_PPMU_H */
|