arch/x86/events/intel/uncore.h

   1 #include <linux/slab.h>
   2 #include <linux/pci.h>
   3 #include <asm/apicdef.h>
   4
   5 #include <linux/perf_event.h>
   6 #include "../perf_event.h"
   7
   8 #define UNCORE_PMU_NAME_LEN             32
   9 #define UNCORE_PMU_HRTIMER_INTERVAL     (60LL * NSEC_PER_SEC)
  10 #define UNCORE_SNB_IMC_HRTIMER_INTERVAL (5ULL * NSEC_PER_SEC)
  11
  12 #define UNCORE_FIXED_EVENT              0xff
  13 #define UNCORE_PMC_IDX_MAX_GENERIC      8
  14 #define UNCORE_PMC_IDX_FIXED            UNCORE_PMC_IDX_MAX_GENERIC
  15 #define UNCORE_PMC_IDX_MAX              (UNCORE_PMC_IDX_FIXED + 1)
  16
  17 #define UNCORE_PCI_DEV_FULL_DATA(dev, func, type, idx)  \
  18                 ((dev << 24) | (func << 16) | (type << 8) | idx)
  19 #define UNCORE_PCI_DEV_DATA(type, idx)  ((type << 8) | idx)
  20 #define UNCORE_PCI_DEV_DEV(data)        ((data >> 24) & 0xff)
  21 #define UNCORE_PCI_DEV_FUNC(data)       ((data >> 16) & 0xff)
  22 #define UNCORE_PCI_DEV_TYPE(data)       ((data >> 8) & 0xff)
  23 #define UNCORE_PCI_DEV_IDX(data)        (data & 0xff)
  24 #define UNCORE_EXTRA_PCI_DEV            0xff
  25 #define UNCORE_EXTRA_PCI_DEV_MAX        3
  26
  27 #define UNCORE_EVENT_CONSTRAINT(c, n) EVENT_CONSTRAINT(c, n, 0xff)
  28
  29 struct pci_extra_dev {
  30         struct pci_dev *dev[UNCORE_EXTRA_PCI_DEV_MAX];
  31 };
  32
  33 struct intel_uncore_ops;
  34 struct intel_uncore_pmu;
  35 struct intel_uncore_box;
  36 struct uncore_event_desc;
  37
  38 struct intel_uncore_type {
  39         const char *name;
  40         int num_counters;
  41         int num_boxes;
  42         int perf_ctr_bits;
  43         int fixed_ctr_bits;
  44         unsigned perf_ctr;
  45         unsigned event_ctl;
  46         unsigned event_mask;
  47         unsigned fixed_ctr;
  48         unsigned fixed_ctl;
  49         unsigned box_ctl;
  50         unsigned msr_offset;
  51         unsigned num_shared_regs:8;
  52         unsigned single_fixed:1;
  53         unsigned pair_ctr_ctl:1;
  54         unsigned *msr_offsets;
  55         struct event_constraint unconstrainted;
  56         struct event_constraint *constraints;
  57         struct intel_uncore_pmu *pmus;
  58         struct intel_uncore_ops *ops;
  59         struct uncore_event_desc *event_descs;
  60         const struct attribute_group *attr_groups[4];
  61         struct pmu *pmu; /* for custom pmu ops */
  62 };
  63
  64 #define pmu_group attr_groups[0]
  65 #define format_group attr_groups[1]
  66 #define events_group attr_groups[2]
  67
  68 struct intel_uncore_ops {
  69         void (*init_box)(struct intel_uncore_box *);
  70         void (*exit_box)(struct intel_uncore_box *);
  71         void (*disable_box)(struct intel_uncore_box *);
  72         void (*enable_box)(struct intel_uncore_box *);
  73         void (*disable_event)(struct intel_uncore_box *, struct perf_event *);
  74         void (*enable_event)(struct intel_uncore_box *, struct perf_event *);
  75         u64 (*read_counter)(struct intel_uncore_box *, struct perf_event *);
  76         int (*hw_config)(struct intel_uncore_box *, struct perf_event *);
  77         struct event_constraint *(*get_constraint)(struct intel_uncore_box *,
  78                                                    struct perf_event *);
  79         void (*put_constraint)(struct intel_uncore_box *, struct perf_event *);
  80 };
  81
  82 struct intel_uncore_pmu {
  83         struct pmu                      pmu;
  84         char                            name[UNCORE_PMU_NAME_LEN];
  85         int                             pmu_idx;
  86         int                             func_id;
  87         bool                            registered;
  88         atomic_t                        activeboxes;
  89         struct intel_uncore_type        *type;
  90         struct intel_uncore_box         **boxes;
  91 };
  92
  93 struct intel_uncore_extra_reg {
  94         raw_spinlock_t lock;
  95         u64 config, config1, config2;
  96         atomic_t ref;
  97 };
  98
  99 struct intel_uncore_box {
 100         int pci_phys_id;
 101         int pkgid;
 102         int n_active;   /* number of active events */
 103         int n_events;
 104         int cpu;        /* cpu to collect events */
 105         unsigned long flags;
 106         atomic_t refcnt;
 107         struct perf_event *events[UNCORE_PMC_IDX_MAX];
 108         struct perf_event *event_list[UNCORE_PMC_IDX_MAX];
 109         struct event_constraint *event_constraint[UNCORE_PMC_IDX_MAX];
 110         unsigned long active_mask[BITS_TO_LONGS(UNCORE_PMC_IDX_MAX)];
 111         u64 tags[UNCORE_PMC_IDX_MAX];
 112         struct pci_dev *pci_dev;
 113         struct intel_uncore_pmu *pmu;
 114         u64 hrtimer_duration; /* hrtimer timeout for this box */
 115         struct hrtimer hrtimer;
 116         struct list_head list;
 117         struct list_head active_list;
 118         void *io_addr;
 119         struct intel_uncore_extra_reg shared_regs[0];
 120 };
 121
 122 #define UNCORE_BOX_FLAG_INITIATED       0
 123
 124 struct uncore_event_desc {
 125         struct kobj_attribute attr;
 126         const char *config;
 127 };
 128
 129 struct pci2phy_map {
 130         struct list_head list;
 131         int segment;
 132         int pbus_to_physid[256];
 133 };
 134
 135 struct pci2phy_map *__find_pci2phy_map(int segment);
 136
 137 ssize_t uncore_event_show(struct kobject *kobj,
 138                           struct kobj_attribute *attr, char *buf);
 139
 140 #define INTEL_UNCORE_EVENT_DESC(_name, _config)                 \
 141 {                                                               \
 142         .attr   = __ATTR(_name, 0444, uncore_event_show, NULL), \
 143         .config = _config,                                      \
 144 }
 145
 146 #define DEFINE_UNCORE_FORMAT_ATTR(_var, _name, _format)                 \
 147 static ssize_t __uncore_##_var##_show(struct kobject *kobj,             \
 148                                 struct kobj_attribute *attr,            \
 149                                 char *page)                             \
 150 {                                                                       \
 151         BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE);                     \
 152         return sprintf(page, _format "\n");                             \
 153 }                                                                       \
 154 static struct kobj_attribute format_attr_##_var =                       \
 155         __ATTR(_name, 0444, __uncore_##_var##_show, NULL)
 156
 157 static inline unsigned uncore_pci_box_ctl(struct intel_uncore_box *box)
 158 {
 159         return box->pmu->type->box_ctl;
 160 }
 161
 162 static inline unsigned uncore_pci_fixed_ctl(struct intel_uncore_box *box)
 163 {
 164         return box->pmu->type->fixed_ctl;
 165 }
 166
 167 static inline unsigned uncore_pci_fixed_ctr(struct intel_uncore_box *box)
 168 {
 169         return box->pmu->type->fixed_ctr;
 170 }
 171
 172 static inline
 173 unsigned uncore_pci_event_ctl(struct intel_uncore_box *box, int idx)
 174 {
 175         return idx * 4 + box->pmu->type->event_ctl;
 176 }
 177
 178 static inline
 179 unsigned uncore_pci_perf_ctr(struct intel_uncore_box *box, int idx)
 180 {
 181         return idx * 8 + box->pmu->type->perf_ctr;
 182 }
 183
 184 static inline unsigned uncore_msr_box_offset(struct intel_uncore_box *box)
 185 {
 186         struct intel_uncore_pmu *pmu = box->pmu;
 187         return pmu->type->msr_offsets ?
 188                 pmu->type->msr_offsets[pmu->pmu_idx] :
 189                 pmu->type->msr_offset * pmu->pmu_idx;
 190 }
 191
 192 static inline unsigned uncore_msr_box_ctl(struct intel_uncore_box *box)
 193 {
 194         if (!box->pmu->type->box_ctl)
 195                 return 0;
 196         return box->pmu->type->box_ctl + uncore_msr_box_offset(box);
 197 }
 198
 199 static inline unsigned uncore_msr_fixed_ctl(struct intel_uncore_box *box)
 200 {
 201         if (!box->pmu->type->fixed_ctl)
 202                 return 0;
 203         return box->pmu->type->fixed_ctl + uncore_msr_box_offset(box);
 204 }
 205
 206 static inline unsigned uncore_msr_fixed_ctr(struct intel_uncore_box *box)
 207 {
 208         return box->pmu->type->fixed_ctr + uncore_msr_box_offset(box);
 209 }
 210
 211 static inline
 212 unsigned uncore_msr_event_ctl(struct intel_uncore_box *box, int idx)
 213 {
 214         return box->pmu->type->event_ctl +
 215                 (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) +
 216                 uncore_msr_box_offset(box);
 217 }
 218
 219 static inline
 220 unsigned uncore_msr_perf_ctr(struct intel_uncore_box *box, int idx)
 221 {
 222         return box->pmu->type->perf_ctr +
 223                 (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) +
 224                 uncore_msr_box_offset(box);
 225 }
 226
 227 static inline
 228 unsigned uncore_fixed_ctl(struct intel_uncore_box *box)
 229 {
 230         if (box->pci_dev)
 231                 return uncore_pci_fixed_ctl(box);
 232         else
 233                 return uncore_msr_fixed_ctl(box);
 234 }
 235
 236 static inline
 237 unsigned uncore_fixed_ctr(struct intel_uncore_box *box)
 238 {
 239         if (box->pci_dev)
 240                 return uncore_pci_fixed_ctr(box);
 241         else
 242                 return uncore_msr_fixed_ctr(box);
 243 }
 244
 245 static inline
 246 unsigned uncore_event_ctl(struct intel_uncore_box *box, int idx)
 247 {
 248         if (box->pci_dev)
 249                 return uncore_pci_event_ctl(box, idx);
 250         else
 251                 return uncore_msr_event_ctl(box, idx);
 252 }
 253
 254 static inline
 255 unsigned uncore_perf_ctr(struct intel_uncore_box *box, int idx)
 256 {
 257         if (box->pci_dev)
 258                 return uncore_pci_perf_ctr(box, idx);
 259         else
 260                 return uncore_msr_perf_ctr(box, idx);
 261 }
 262
 263 static inline int uncore_perf_ctr_bits(struct intel_uncore_box *box)
 264 {
 265         return box->pmu->type->perf_ctr_bits;
 266 }
 267
 268 static inline int uncore_fixed_ctr_bits(struct intel_uncore_box *box)
 269 {
 270         return box->pmu->type->fixed_ctr_bits;
 271 }
 272
 273 static inline int uncore_num_counters(struct intel_uncore_box *box)
 274 {
 275         return box->pmu->type->num_counters;
 276 }
 277
 278 static inline void uncore_disable_box(struct intel_uncore_box *box)
 279 {
 280         if (box->pmu->type->ops->disable_box)
 281                 box->pmu->type->ops->disable_box(box);
 282 }
 283
 284 static inline void uncore_enable_box(struct intel_uncore_box *box)
 285 {
 286         if (box->pmu->type->ops->enable_box)
 287                 box->pmu->type->ops->enable_box(box);
 288 }
 289
 290 static inline void uncore_disable_event(struct intel_uncore_box *box,
 291                                 struct perf_event *event)
 292 {
 293         box->pmu->type->ops->disable_event(box, event);
 294 }
 295
 296 static inline void uncore_enable_event(struct intel_uncore_box *box,
 297                                 struct perf_event *event)
 298 {
 299         box->pmu->type->ops->enable_event(box, event);
 300 }
 301
 302 static inline u64 uncore_read_counter(struct intel_uncore_box *box,
 303                                 struct perf_event *event)
 304 {
 305         return box->pmu->type->ops->read_counter(box, event);
 306 }
 307
 308 static inline void uncore_box_init(struct intel_uncore_box *box)
 309 {
 310         if (!test_and_set_bit(UNCORE_BOX_FLAG_INITIATED, &box->flags)) {
 311                 if (box->pmu->type->ops->init_box)
 312                         box->pmu->type->ops->init_box(box);
 313         }
 314 }
 315
 316 static inline void uncore_box_exit(struct intel_uncore_box *box)
 317 {
 318         if (test_and_clear_bit(UNCORE_BOX_FLAG_INITIATED, &box->flags)) {
 319                 if (box->pmu->type->ops->exit_box)
 320                         box->pmu->type->ops->exit_box(box);
 321         }
 322 }
 323
 324 static inline bool uncore_box_is_fake(struct intel_uncore_box *box)
 325 {
 326         return (box->pkgid < 0);
 327 }
 328
 329 static inline struct intel_uncore_pmu *uncore_event_to_pmu(struct perf_event *event)
 330 {
 331         return container_of(event->pmu, struct intel_uncore_pmu, pmu);
 332 }
 333
 334 static inline struct intel_uncore_box *uncore_event_to_box(struct perf_event *event)
 335 {
 336         return event->pmu_private;
 337 }
 338
 339 struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu);
 340 u64 uncore_msr_read_counter(struct intel_uncore_box *box, struct perf_event *event);
 341 void uncore_pmu_start_hrtimer(struct intel_uncore_box *box);
 342 void uncore_pmu_cancel_hrtimer(struct intel_uncore_box *box);
 343 void uncore_pmu_event_read(struct perf_event *event);
 344 void uncore_perf_event_update(struct intel_uncore_box *box, struct perf_event *event);
 345 struct event_constraint *
 346 uncore_get_constraint(struct intel_uncore_box *box, struct perf_event *event);
 347 void uncore_put_constraint(struct intel_uncore_box *box, struct perf_event *event);
 348 u64 uncore_shared_reg_config(struct intel_uncore_box *box, int idx);
 349
 350 extern struct intel_uncore_type **uncore_msr_uncores;
 351 extern struct intel_uncore_type **uncore_pci_uncores;
 352 extern struct pci_driver *uncore_pci_driver;
 353 extern raw_spinlock_t pci2phy_map_lock;
 354 extern struct list_head pci2phy_map_head;
 355 extern struct pci_extra_dev *uncore_extra_pci_dev;
 356 extern struct event_constraint uncore_constraint_empty;
 357
 358 /* perf_event_intel_uncore_snb.c */
 359 int snb_uncore_pci_init(void);
 360 int ivb_uncore_pci_init(void);
 361 int hsw_uncore_pci_init(void);
 362 int bdw_uncore_pci_init(void);
 363 int skl_uncore_pci_init(void);
 364 void snb_uncore_cpu_init(void);
 365 void nhm_uncore_cpu_init(void);
 366 void skl_uncore_cpu_init(void);
 367 int snb_pci2phy_map_init(int devid);
 368
 369 /* perf_event_intel_uncore_snbep.c */
 370 int snbep_uncore_pci_init(void);
 371 void snbep_uncore_cpu_init(void);
 372 int ivbep_uncore_pci_init(void);
 373 void ivbep_uncore_cpu_init(void);
 374 int hswep_uncore_pci_init(void);
 375 void hswep_uncore_cpu_init(void);
 376 int bdx_uncore_pci_init(void);
 377 void bdx_uncore_cpu_init(void);
 378 int knl_uncore_pci_init(void);
 379 void knl_uncore_cpu_init(void);
 380
 381 /* perf_event_intel_uncore_nhmex.c */
 382 void nhmex_uncore_cpu_init(void);