arch/x86/events/intel/uncore.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #include <linux/slab.h>
   3 #include <linux/pci.h>
   4 #include <asm/apicdef.h>
   5
   6 #include <linux/perf_event.h>
   7 #include "../perf_event.h"
   8
   9 #define UNCORE_PMU_NAME_LEN             32
  10 #define UNCORE_PMU_HRTIMER_INTERVAL     (60LL * NSEC_PER_SEC)
  11 #define UNCORE_SNB_IMC_HRTIMER_INTERVAL (5ULL * NSEC_PER_SEC)
  12
  13 #define UNCORE_FIXED_EVENT              0xff
  14 #define UNCORE_PMC_IDX_MAX_GENERIC      8
  15 #define UNCORE_PMC_IDX_FIXED            UNCORE_PMC_IDX_MAX_GENERIC
  16 #define UNCORE_PMC_IDX_MAX              (UNCORE_PMC_IDX_FIXED + 1)
  17
  18 #define UNCORE_PCI_DEV_FULL_DATA(dev, func, type, idx)  \
  19                 ((dev << 24) | (func << 16) | (type << 8) | idx)
  20 #define UNCORE_PCI_DEV_DATA(type, idx)  ((type << 8) | idx)
  21 #define UNCORE_PCI_DEV_DEV(data)        ((data >> 24) & 0xff)
  22 #define UNCORE_PCI_DEV_FUNC(data)       ((data >> 16) & 0xff)
  23 #define UNCORE_PCI_DEV_TYPE(data)       ((data >> 8) & 0xff)
  24 #define UNCORE_PCI_DEV_IDX(data)        (data & 0xff)
  25 #define UNCORE_EXTRA_PCI_DEV            0xff
  26 #define UNCORE_EXTRA_PCI_DEV_MAX        3
  27
  28 #define UNCORE_EVENT_CONSTRAINT(c, n) EVENT_CONSTRAINT(c, n, 0xff)
  29
  30 struct pci_extra_dev {
  31         struct pci_dev *dev[UNCORE_EXTRA_PCI_DEV_MAX];
  32 };
  33
  34 struct intel_uncore_ops;
  35 struct intel_uncore_pmu;
  36 struct intel_uncore_box;
  37 struct uncore_event_desc;
  38
  39 struct intel_uncore_type {
  40         const char *name;
  41         int num_counters;
  42         int num_boxes;
  43         int perf_ctr_bits;
  44         int fixed_ctr_bits;
  45         unsigned perf_ctr;
  46         unsigned event_ctl;
  47         unsigned event_mask;
  48         unsigned event_mask_ext;
  49         unsigned fixed_ctr;
  50         unsigned fixed_ctl;
  51         unsigned box_ctl;
  52         unsigned msr_offset;
  53         unsigned num_shared_regs:8;
  54         unsigned single_fixed:1;
  55         unsigned pair_ctr_ctl:1;
  56         unsigned *msr_offsets;
  57         struct event_constraint unconstrainted;
  58         struct event_constraint *constraints;
  59         struct intel_uncore_pmu *pmus;
  60         struct intel_uncore_ops *ops;
  61         struct uncore_event_desc *event_descs;
  62         const struct attribute_group *attr_groups[4];
  63         struct pmu *pmu; /* for custom pmu ops */
  64 };
  65
  66 #define pmu_group attr_groups[0]
  67 #define format_group attr_groups[1]
  68 #define events_group attr_groups[2]
  69
  70 struct intel_uncore_ops {
  71         void (*init_box)(struct intel_uncore_box *);
  72         void (*exit_box)(struct intel_uncore_box *);
  73         void (*disable_box)(struct intel_uncore_box *);
  74         void (*enable_box)(struct intel_uncore_box *);
  75         void (*disable_event)(struct intel_uncore_box *, struct perf_event *);
  76         void (*enable_event)(struct intel_uncore_box *, struct perf_event *);
  77         u64 (*read_counter)(struct intel_uncore_box *, struct perf_event *);
  78         int (*hw_config)(struct intel_uncore_box *, struct perf_event *);
  79         struct event_constraint *(*get_constraint)(struct intel_uncore_box *,
  80                                                    struct perf_event *);
  81         void (*put_constraint)(struct intel_uncore_box *, struct perf_event *);
  82 };
  83
  84 struct intel_uncore_pmu {
  85         struct pmu                      pmu;
  86         char                            name[UNCORE_PMU_NAME_LEN];
  87         int                             pmu_idx;
  88         int                             func_id;
  89         bool                            registered;
  90         atomic_t                        activeboxes;
  91         struct intel_uncore_type        *type;
  92         struct intel_uncore_box         **boxes;
  93 };
  94
  95 struct intel_uncore_extra_reg {
  96         raw_spinlock_t lock;
  97         u64 config, config1, config2;
  98         atomic_t ref;
  99 };
 100
 101 struct intel_uncore_box {
 102         int pci_phys_id;
 103         int pkgid;
 104         int n_active;   /* number of active events */
 105         int n_events;
 106         int cpu;        /* cpu to collect events */
 107         unsigned long flags;
 108         atomic_t refcnt;
 109         struct perf_event *events[UNCORE_PMC_IDX_MAX];
 110         struct perf_event *event_list[UNCORE_PMC_IDX_MAX];
 111         struct event_constraint *event_constraint[UNCORE_PMC_IDX_MAX];
 112         unsigned long active_mask[BITS_TO_LONGS(UNCORE_PMC_IDX_MAX)];
 113         u64 tags[UNCORE_PMC_IDX_MAX];
 114         struct pci_dev *pci_dev;
 115         struct intel_uncore_pmu *pmu;
 116         u64 hrtimer_duration; /* hrtimer timeout for this box */
 117         struct hrtimer hrtimer;
 118         struct list_head list;
 119         struct list_head active_list;
 120         void *io_addr;
 121         struct intel_uncore_extra_reg shared_regs[0];
 122 };
 123
 124 #define UNCORE_BOX_FLAG_INITIATED       0
 125 #define UNCORE_BOX_FLAG_CTL_OFFS8       1 /* event config registers are 8-byte apart */
 126
 127 struct uncore_event_desc {
 128         struct kobj_attribute attr;
 129         const char *config;
 130 };
 131
 132 struct pci2phy_map {
 133         struct list_head list;
 134         int segment;
 135         int pbus_to_physid[256];
 136 };
 137
 138 struct pci2phy_map *__find_pci2phy_map(int segment);
 139
 140 ssize_t uncore_event_show(struct kobject *kobj,
 141                           struct kobj_attribute *attr, char *buf);
 142
 143 #define INTEL_UNCORE_EVENT_DESC(_name, _config)                 \
 144 {                                                               \
 145         .attr   = __ATTR(_name, 0444, uncore_event_show, NULL), \
 146         .config = _config,                                      \
 147 }
 148
 149 #define DEFINE_UNCORE_FORMAT_ATTR(_var, _name, _format)                 \
 150 static ssize_t __uncore_##_var##_show(struct kobject *kobj,             \
 151                                 struct kobj_attribute *attr,            \
 152                                 char *page)                             \
 153 {                                                                       \
 154         BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE);                     \
 155         return sprintf(page, _format "\n");                             \
 156 }                                                                       \
 157 static struct kobj_attribute format_attr_##_var =                       \
 158         __ATTR(_name, 0444, __uncore_##_var##_show, NULL)
 159
 160 static inline unsigned uncore_pci_box_ctl(struct intel_uncore_box *box)
 161 {
 162         return box->pmu->type->box_ctl;
 163 }
 164
 165 static inline unsigned uncore_pci_fixed_ctl(struct intel_uncore_box *box)
 166 {
 167         return box->pmu->type->fixed_ctl;
 168 }
 169
 170 static inline unsigned uncore_pci_fixed_ctr(struct intel_uncore_box *box)
 171 {
 172         return box->pmu->type->fixed_ctr;
 173 }
 174
 175 static inline
 176 unsigned uncore_pci_event_ctl(struct intel_uncore_box *box, int idx)
 177 {
 178         if (test_bit(UNCORE_BOX_FLAG_CTL_OFFS8, &box->flags))
 179                 return idx * 8 + box->pmu->type->event_ctl;
 180
 181         return idx * 4 + box->pmu->type->event_ctl;
 182 }
 183
 184 static inline
 185 unsigned uncore_pci_perf_ctr(struct intel_uncore_box *box, int idx)
 186 {
 187         return idx * 8 + box->pmu->type->perf_ctr;
 188 }
 189
 190 static inline unsigned uncore_msr_box_offset(struct intel_uncore_box *box)
 191 {
 192         struct intel_uncore_pmu *pmu = box->pmu;
 193         return pmu->type->msr_offsets ?
 194                 pmu->type->msr_offsets[pmu->pmu_idx] :
 195                 pmu->type->msr_offset * pmu->pmu_idx;
 196 }
 197
 198 static inline unsigned uncore_msr_box_ctl(struct intel_uncore_box *box)
 199 {
 200         if (!box->pmu->type->box_ctl)
 201                 return 0;
 202         return box->pmu->type->box_ctl + uncore_msr_box_offset(box);
 203 }
 204
 205 static inline unsigned uncore_msr_fixed_ctl(struct intel_uncore_box *box)
 206 {
 207         if (!box->pmu->type->fixed_ctl)
 208                 return 0;
 209         return box->pmu->type->fixed_ctl + uncore_msr_box_offset(box);
 210 }
 211
 212 static inline unsigned uncore_msr_fixed_ctr(struct intel_uncore_box *box)
 213 {
 214         return box->pmu->type->fixed_ctr + uncore_msr_box_offset(box);
 215 }
 216
 217 static inline
 218 unsigned uncore_msr_event_ctl(struct intel_uncore_box *box, int idx)
 219 {
 220         return box->pmu->type->event_ctl +
 221                 (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) +
 222                 uncore_msr_box_offset(box);
 223 }
 224
 225 static inline
 226 unsigned uncore_msr_perf_ctr(struct intel_uncore_box *box, int idx)
 227 {
 228         return box->pmu->type->perf_ctr +
 229                 (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) +
 230                 uncore_msr_box_offset(box);
 231 }
 232
 233 static inline
 234 unsigned uncore_fixed_ctl(struct intel_uncore_box *box)
 235 {
 236         if (box->pci_dev)
 237                 return uncore_pci_fixed_ctl(box);
 238         else
 239                 return uncore_msr_fixed_ctl(box);
 240 }
 241
 242 static inline
 243 unsigned uncore_fixed_ctr(struct intel_uncore_box *box)
 244 {
 245         if (box->pci_dev)
 246                 return uncore_pci_fixed_ctr(box);
 247         else
 248                 return uncore_msr_fixed_ctr(box);
 249 }
 250
 251 static inline
 252 unsigned uncore_event_ctl(struct intel_uncore_box *box, int idx)
 253 {
 254         if (box->pci_dev)
 255                 return uncore_pci_event_ctl(box, idx);
 256         else
 257                 return uncore_msr_event_ctl(box, idx);
 258 }
 259
 260 static inline
 261 unsigned uncore_perf_ctr(struct intel_uncore_box *box, int idx)
 262 {
 263         if (box->pci_dev)
 264                 return uncore_pci_perf_ctr(box, idx);
 265         else
 266                 return uncore_msr_perf_ctr(box, idx);
 267 }
 268
 269 static inline int uncore_perf_ctr_bits(struct intel_uncore_box *box)
 270 {
 271         return box->pmu->type->perf_ctr_bits;
 272 }
 273
 274 static inline int uncore_fixed_ctr_bits(struct intel_uncore_box *box)
 275 {
 276         return box->pmu->type->fixed_ctr_bits;
 277 }
 278
 279 static inline int uncore_num_counters(struct intel_uncore_box *box)
 280 {
 281         return box->pmu->type->num_counters;
 282 }
 283
 284 static inline void uncore_disable_box(struct intel_uncore_box *box)
 285 {
 286         if (box->pmu->type->ops->disable_box)
 287                 box->pmu->type->ops->disable_box(box);
 288 }
 289
 290 static inline void uncore_enable_box(struct intel_uncore_box *box)
 291 {
 292         if (box->pmu->type->ops->enable_box)
 293                 box->pmu->type->ops->enable_box(box);
 294 }
 295
 296 static inline void uncore_disable_event(struct intel_uncore_box *box,
 297                                 struct perf_event *event)
 298 {
 299         box->pmu->type->ops->disable_event(box, event);
 300 }
 301
 302 static inline void uncore_enable_event(struct intel_uncore_box *box,
 303                                 struct perf_event *event)
 304 {
 305         box->pmu->type->ops->enable_event(box, event);
 306 }
 307
 308 static inline u64 uncore_read_counter(struct intel_uncore_box *box,
 309                                 struct perf_event *event)
 310 {
 311         return box->pmu->type->ops->read_counter(box, event);
 312 }
 313
 314 static inline void uncore_box_init(struct intel_uncore_box *box)
 315 {
 316         if (!test_and_set_bit(UNCORE_BOX_FLAG_INITIATED, &box->flags)) {
 317                 if (box->pmu->type->ops->init_box)
 318                         box->pmu->type->ops->init_box(box);
 319         }
 320 }
 321
 322 static inline void uncore_box_exit(struct intel_uncore_box *box)
 323 {
 324         if (test_and_clear_bit(UNCORE_BOX_FLAG_INITIATED, &box->flags)) {
 325                 if (box->pmu->type->ops->exit_box)
 326                         box->pmu->type->ops->exit_box(box);
 327         }
 328 }
 329
 330 static inline bool uncore_box_is_fake(struct intel_uncore_box *box)
 331 {
 332         return (box->pkgid < 0);
 333 }
 334
 335 static inline struct intel_uncore_pmu *uncore_event_to_pmu(struct perf_event *event)
 336 {
 337         return container_of(event->pmu, struct intel_uncore_pmu, pmu);
 338 }
 339
 340 static inline struct intel_uncore_box *uncore_event_to_box(struct perf_event *event)
 341 {
 342         return event->pmu_private;
 343 }
 344
 345 struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu);
 346 u64 uncore_msr_read_counter(struct intel_uncore_box *box, struct perf_event *event);
 347 void uncore_pmu_start_hrtimer(struct intel_uncore_box *box);
 348 void uncore_pmu_cancel_hrtimer(struct intel_uncore_box *box);
 349 void uncore_pmu_event_read(struct perf_event *event);
 350 void uncore_perf_event_update(struct intel_uncore_box *box, struct perf_event *event);
 351 struct event_constraint *
 352 uncore_get_constraint(struct intel_uncore_box *box, struct perf_event *event);
 353 void uncore_put_constraint(struct intel_uncore_box *box, struct perf_event *event);
 354 u64 uncore_shared_reg_config(struct intel_uncore_box *box, int idx);
 355
 356 extern struct intel_uncore_type **uncore_msr_uncores;
 357 extern struct intel_uncore_type **uncore_pci_uncores;
 358 extern struct pci_driver *uncore_pci_driver;
 359 extern raw_spinlock_t pci2phy_map_lock;
 360 extern struct list_head pci2phy_map_head;
 361 extern struct pci_extra_dev *uncore_extra_pci_dev;
 362 extern struct event_constraint uncore_constraint_empty;
 363
 364 /* uncore_snb.c */
 365 int snb_uncore_pci_init(void);
 366 int ivb_uncore_pci_init(void);
 367 int hsw_uncore_pci_init(void);
 368 int bdw_uncore_pci_init(void);
 369 int skl_uncore_pci_init(void);
 370 void snb_uncore_cpu_init(void);
 371 void nhm_uncore_cpu_init(void);
 372 void skl_uncore_cpu_init(void);
 373 int snb_pci2phy_map_init(int devid);
 374
 375 /* uncore_snbep.c */
 376 int snbep_uncore_pci_init(void);
 377 void snbep_uncore_cpu_init(void);
 378 int ivbep_uncore_pci_init(void);
 379 void ivbep_uncore_cpu_init(void);
 380 int hswep_uncore_pci_init(void);
 381 void hswep_uncore_cpu_init(void);
 382 int bdx_uncore_pci_init(void);
 383 void bdx_uncore_cpu_init(void);
 384 int knl_uncore_pci_init(void);
 385 void knl_uncore_cpu_init(void);
 386 int skx_uncore_pci_init(void);
 387 void skx_uncore_cpu_init(void);
 388
 389 /* uncore_nhmex.c */
 390 void nhmex_uncore_cpu_init(void);