drivers/dma/idxd/perfmon.h

   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
  19 static 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
  30 static 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
  41 static 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
  50 enum 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
  59 enum 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)                      \
 109 static 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 }                                                                       \
 116 static struct kobj_attribute format_attr_idxd_##_name =                 \
 117         __ATTR(_name, 0444, __perfmon_idxd_##_name##_show, NULL)
 118
 119 #endif