cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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perfmon.h (3191B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/* Copyright(c) 2020 Intel Corporation. All rights rsvd. */
      3
      4#ifndef _PERFMON_H_
      5#define _PERFMON_H_
      6
      7#include <linux/slab.h>
      8#include <linux/pci.h>
      9#include <linux/sbitmap.h>
     10#include <linux/dmaengine.h>
     11#include <linux/percpu-rwsem.h>
     12#include <linux/wait.h>
     13#include <linux/cdev.h>
     14#include <linux/uuid.h>
     15#include <linux/idxd.h>
     16#include <linux/perf_event.h>
     17#include "registers.h"
     18
     19static inline struct idxd_pmu *event_to_pmu(struct perf_event *event)
     20{
     21	struct idxd_pmu *idxd_pmu;
     22	struct pmu *pmu;
     23
     24	pmu = event->pmu;
     25	idxd_pmu = container_of(pmu, struct idxd_pmu, pmu);
     26
     27	return idxd_pmu;
     28}
     29
     30static inline struct idxd_device *event_to_idxd(struct perf_event *event)
     31{
     32	struct idxd_pmu *idxd_pmu;
     33	struct pmu *pmu;
     34
     35	pmu = event->pmu;
     36	idxd_pmu = container_of(pmu, struct idxd_pmu, pmu);
     37
     38	return idxd_pmu->idxd;
     39}
     40
     41static inline struct idxd_device *pmu_to_idxd(struct pmu *pmu)
     42{
     43	struct idxd_pmu *idxd_pmu;
     44
     45	idxd_pmu = container_of(pmu, struct idxd_pmu, pmu);
     46
     47	return idxd_pmu->idxd;
     48}
     49
     50enum dsa_perf_events {
     51	DSA_PERF_EVENT_WQ = 0,
     52	DSA_PERF_EVENT_ENGINE,
     53	DSA_PERF_EVENT_ADDR_TRANS,
     54	DSA_PERF_EVENT_OP,
     55	DSA_PERF_EVENT_COMPL,
     56	DSA_PERF_EVENT_MAX,
     57};
     58
     59enum filter_enc {
     60	FLT_WQ = 0,
     61	FLT_TC,
     62	FLT_PG_SZ,
     63	FLT_XFER_SZ,
     64	FLT_ENG,
     65	FLT_MAX,
     66};
     67
     68#define CONFIG_RESET		0x0000000000000001
     69#define CNTR_RESET		0x0000000000000002
     70#define CNTR_ENABLE		0x0000000000000001
     71#define INTR_OVFL		0x0000000000000002
     72
     73#define COUNTER_FREEZE		0x00000000FFFFFFFF
     74#define COUNTER_UNFREEZE	0x0000000000000000
     75#define OVERFLOW_SIZE		32
     76
     77#define CNTRCFG_ENABLE		BIT(0)
     78#define CNTRCFG_IRQ_OVERFLOW	BIT(1)
     79#define CNTRCFG_CATEGORY_SHIFT	8
     80#define CNTRCFG_EVENT_SHIFT	32
     81
     82#define PERFMON_TABLE_OFFSET(_idxd)				\
     83({								\
     84	typeof(_idxd) __idxd = (_idxd);				\
     85	((__idxd)->reg_base + (__idxd)->perfmon_offset);	\
     86})
     87#define PERFMON_REG_OFFSET(idxd, offset)			\
     88	(PERFMON_TABLE_OFFSET(idxd) + (offset))
     89
     90#define PERFCAP_REG(idxd)	(PERFMON_REG_OFFSET(idxd, IDXD_PERFCAP_OFFSET))
     91#define PERFRST_REG(idxd)	(PERFMON_REG_OFFSET(idxd, IDXD_PERFRST_OFFSET))
     92#define OVFSTATUS_REG(idxd)	(PERFMON_REG_OFFSET(idxd, IDXD_OVFSTATUS_OFFSET))
     93#define PERFFRZ_REG(idxd)	(PERFMON_REG_OFFSET(idxd, IDXD_PERFFRZ_OFFSET))
     94
     95#define FLTCFG_REG(idxd, cntr, flt)				\
     96	(PERFMON_REG_OFFSET(idxd, IDXD_FLTCFG_OFFSET) +	((cntr) * 32) + ((flt) * 4))
     97
     98#define CNTRCFG_REG(idxd, cntr)					\
     99	(PERFMON_REG_OFFSET(idxd, IDXD_CNTRCFG_OFFSET) + ((cntr) * 8))
    100#define CNTRDATA_REG(idxd, cntr)					\
    101	(PERFMON_REG_OFFSET(idxd, IDXD_CNTRDATA_OFFSET) + ((cntr) * 8))
    102#define CNTRCAP_REG(idxd, cntr)					\
    103	(PERFMON_REG_OFFSET(idxd, IDXD_CNTRCAP_OFFSET) + ((cntr) * 8))
    104
    105#define EVNTCAP_REG(idxd, category) \
    106	(PERFMON_REG_OFFSET(idxd, IDXD_EVNTCAP_OFFSET) + ((category) * 8))
    107
    108#define DEFINE_PERFMON_FORMAT_ATTR(_name, _format)			\
    109static ssize_t __perfmon_idxd_##_name##_show(struct kobject *kobj,	\
    110				struct kobj_attribute *attr,		\
    111				char *page)				\
    112{									\
    113	BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE);			\
    114	return sprintf(page, _format "\n");				\
    115}									\
    116static struct kobj_attribute format_attr_idxd_##_name =			\
    117	__ATTR(_name, 0444, __perfmon_idxd_##_name##_show, NULL)
    118
    119#endif