mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 15:43:59 +08:00
6ce4ef9419
This patch adds support HiSilicon SoC uncore PMU driver framework and interfaces. Acked-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com> Signed-off-by: Anurup M <anurup.m@huawei.com> [will: Fix leader accounting in uncore group validation] Signed-off-by: Will Deacon <will.deacon@arm.com>
103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/*
|
|
* HiSilicon SoC Hardware event counters support
|
|
*
|
|
* Copyright (C) 2017 Hisilicon Limited
|
|
* Author: Anurup M <anurup.m@huawei.com>
|
|
* Shaokun Zhang <zhangshaokun@hisilicon.com>
|
|
*
|
|
* This code is based on the uncore PMUs like arm-cci and arm-ccn.
|
|
*
|
|
* 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 __HISI_UNCORE_PMU_H__
|
|
#define __HISI_UNCORE_PMU_H__
|
|
|
|
#include <linux/cpumask.h>
|
|
#include <linux/device.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/perf_event.h>
|
|
#include <linux/types.h>
|
|
|
|
#undef pr_fmt
|
|
#define pr_fmt(fmt) "hisi_pmu: " fmt
|
|
|
|
#define HISI_MAX_COUNTERS 0x10
|
|
#define to_hisi_pmu(p) (container_of(p, struct hisi_pmu, pmu))
|
|
|
|
#define HISI_PMU_ATTR(_name, _func, _config) \
|
|
(&((struct dev_ext_attribute[]) { \
|
|
{ __ATTR(_name, 0444, _func, NULL), (void *)_config } \
|
|
})[0].attr.attr)
|
|
|
|
#define HISI_PMU_FORMAT_ATTR(_name, _config) \
|
|
HISI_PMU_ATTR(_name, hisi_format_sysfs_show, (void *)_config)
|
|
#define HISI_PMU_EVENT_ATTR(_name, _config) \
|
|
HISI_PMU_ATTR(_name, hisi_event_sysfs_show, (unsigned long)_config)
|
|
|
|
struct hisi_pmu;
|
|
|
|
struct hisi_uncore_ops {
|
|
void (*write_evtype)(struct hisi_pmu *, int, u32);
|
|
int (*get_event_idx)(struct perf_event *);
|
|
u64 (*read_counter)(struct hisi_pmu *, struct hw_perf_event *);
|
|
void (*write_counter)(struct hisi_pmu *, struct hw_perf_event *, u64);
|
|
void (*enable_counter)(struct hisi_pmu *, struct hw_perf_event *);
|
|
void (*disable_counter)(struct hisi_pmu *, struct hw_perf_event *);
|
|
void (*enable_counter_int)(struct hisi_pmu *, struct hw_perf_event *);
|
|
void (*disable_counter_int)(struct hisi_pmu *, struct hw_perf_event *);
|
|
void (*start_counters)(struct hisi_pmu *);
|
|
void (*stop_counters)(struct hisi_pmu *);
|
|
};
|
|
|
|
struct hisi_pmu_hwevents {
|
|
struct perf_event *hw_events[HISI_MAX_COUNTERS];
|
|
DECLARE_BITMAP(used_mask, HISI_MAX_COUNTERS);
|
|
};
|
|
|
|
/* Generic pmu struct for different pmu types */
|
|
struct hisi_pmu {
|
|
struct pmu pmu;
|
|
const struct hisi_uncore_ops *ops;
|
|
struct hisi_pmu_hwevents pmu_events;
|
|
/* associated_cpus: All CPUs associated with the PMU */
|
|
cpumask_t associated_cpus;
|
|
/* CPU used for counting */
|
|
int on_cpu;
|
|
int irq;
|
|
struct device *dev;
|
|
struct hlist_node node;
|
|
int sccl_id;
|
|
int ccl_id;
|
|
void __iomem *base;
|
|
/* the ID of the PMU modules */
|
|
u32 index_id;
|
|
int num_counters;
|
|
int counter_bits;
|
|
/* check event code range */
|
|
int check_event;
|
|
};
|
|
|
|
int hisi_uncore_pmu_counter_valid(struct hisi_pmu *hisi_pmu, int idx);
|
|
int hisi_uncore_pmu_get_event_idx(struct perf_event *event);
|
|
void hisi_uncore_pmu_read(struct perf_event *event);
|
|
int hisi_uncore_pmu_add(struct perf_event *event, int flags);
|
|
void hisi_uncore_pmu_del(struct perf_event *event, int flags);
|
|
void hisi_uncore_pmu_start(struct perf_event *event, int flags);
|
|
void hisi_uncore_pmu_stop(struct perf_event *event, int flags);
|
|
void hisi_uncore_pmu_set_event_period(struct perf_event *event);
|
|
void hisi_uncore_pmu_event_update(struct perf_event *event);
|
|
int hisi_uncore_pmu_event_init(struct perf_event *event);
|
|
void hisi_uncore_pmu_enable(struct pmu *pmu);
|
|
void hisi_uncore_pmu_disable(struct pmu *pmu);
|
|
ssize_t hisi_event_sysfs_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf);
|
|
ssize_t hisi_format_sysfs_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf);
|
|
ssize_t hisi_cpumask_sysfs_show(struct device *dev,
|
|
struct device_attribute *attr, char *buf);
|
|
int hisi_uncore_pmu_online_cpu(unsigned int cpu, struct hlist_node *node);
|
|
int hisi_uncore_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node);
|
|
#endif /* __HISI_UNCORE_PMU_H__ */
|