arch/x86/kernel/cpu/resctrl/internal.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_RESCTRL_INTERNAL_H
   3 #define _ASM_X86_RESCTRL_INTERNAL_H
   4
   5 #include <linux/sched.h>
   6 #include <linux/kernfs.h>
   7 #include <linux/fs_context.h>
   8 #include <linux/jump_label.h>
   9
  10 #define MSR_IA32_L3_QOS_CFG             0xc81
  11 #define MSR_IA32_L2_QOS_CFG             0xc82
  12 #define MSR_IA32_L3_CBM_BASE            0xc90
  13 #define MSR_IA32_L2_CBM_BASE            0xd10
  14 #define MSR_IA32_MBA_THRTL_BASE         0xd50
  15 #define MSR_IA32_MBA_BW_BASE            0xc0000200
  16
  17 #define MSR_IA32_QM_CTR                 0x0c8e
  18 #define MSR_IA32_QM_EVTSEL              0x0c8d
  19
  20 #define L3_QOS_CDP_ENABLE               0x01ULL
  21
  22 #define L2_QOS_CDP_ENABLE               0x01ULL
  23
  24 /*
  25  * Event IDs are used to program IA32_QM_EVTSEL before reading event
  26  * counter from IA32_QM_CTR
  27  */
  28 #define QOS_L3_OCCUP_EVENT_ID           0x01
  29 #define QOS_L3_MBM_TOTAL_EVENT_ID       0x02
  30 #define QOS_L3_MBM_LOCAL_EVENT_ID       0x03
  31
  32 #define CQM_LIMBOCHECK_INTERVAL 1000
  33
  34 #define MBM_CNTR_WIDTH_BASE             24
  35 #define MBM_OVERFLOW_INTERVAL           1000
  36 #define MAX_MBA_BW                      100u
  37 #define MBA_IS_LINEAR                   0x4
  38 #define MBA_MAX_MBPS                    U32_MAX
  39 #define MAX_MBA_BW_AMD                  0x800
  40 #define MBM_CNTR_WIDTH_OFFSET_AMD       20
  41
  42 #define RMID_VAL_ERROR                  BIT_ULL(63)
  43 #define RMID_VAL_UNAVAIL                BIT_ULL(62)
  44 /*
  45  * With the above fields in use 62 bits remain in MSR_IA32_QM_CTR for
  46  * data to be returned. The counter width is discovered from the hardware
  47  * as an offset from MBM_CNTR_WIDTH_BASE.
  48  */
  49 #define MBM_CNTR_WIDTH_OFFSET_MAX (62 - MBM_CNTR_WIDTH_BASE)
  50
  51
  52 struct rdt_fs_context {
  53         struct kernfs_fs_context        kfc;
  54         bool                            enable_cdpl2;
  55         bool                            enable_cdpl3;
  56         bool                            enable_mba_mbps;
  57 };
  58
  59 static inline struct rdt_fs_context *rdt_fc2context(struct fs_context *fc)
  60 {
  61         struct kernfs_fs_context *kfc = fc->fs_private;
  62
  63         return container_of(kfc, struct rdt_fs_context, kfc);
  64 }
  65
  66 DECLARE_STATIC_KEY_FALSE(rdt_enable_key);
  67 DECLARE_STATIC_KEY_FALSE(rdt_mon_enable_key);
  68
  69 /**
  70  * struct mon_evt - Entry in the event list of a resource
  71  * @evtid:              event id
  72  * @name:               name of the event
  73  */
  74 struct mon_evt {
  75         u32                     evtid;
  76         char                    *name;
  77         struct list_head        list;
  78 };
  79
  80 /**
  81  * struct mon_data_bits - Monitoring details for each event file
  82  * @rid:               Resource id associated with the event file.
  83  * @evtid:             Event id associated with the event file
  84  * @domid:             The domain to which the event file belongs
  85  */
  86 union mon_data_bits {
  87         void *priv;
  88         struct {
  89                 unsigned int rid        : 10;
  90                 unsigned int evtid      : 8;
  91                 unsigned int domid      : 14;
  92         } u;
  93 };
  94
  95 struct rmid_read {
  96         struct rdtgroup         *rgrp;
  97         struct rdt_resource     *r;
  98         struct rdt_domain       *d;
  99         int                     evtid;
 100         bool                    first;
 101         u64                     val;
 102 };
 103
 104 extern unsigned int resctrl_cqm_threshold;
 105 extern bool rdt_alloc_capable;
 106 extern bool rdt_mon_capable;
 107 extern unsigned int rdt_mon_features;
 108
 109 enum rdt_group_type {
 110         RDTCTRL_GROUP = 0,
 111         RDTMON_GROUP,
 112         RDT_NUM_GROUP,
 113 };
 114
 115 /**
 116  * enum rdtgrp_mode - Mode of a RDT resource group
 117  * @RDT_MODE_SHAREABLE: This resource group allows sharing of its allocations
 118  * @RDT_MODE_EXCLUSIVE: No sharing of this resource group's allocations allowed
 119  * @RDT_MODE_PSEUDO_LOCKSETUP: Resource group will be used for Pseudo-Locking
 120  * @RDT_MODE_PSEUDO_LOCKED: No sharing of this resource group's allocations
 121  *                          allowed AND the allocations are Cache Pseudo-Locked
 122  *
 123  * The mode of a resource group enables control over the allowed overlap
 124  * between allocations associated with different resource groups (classes
 125  * of service). User is able to modify the mode of a resource group by
 126  * writing to the "mode" resctrl file associated with the resource group.
 127  *
 128  * The "shareable", "exclusive", and "pseudo-locksetup" modes are set by
 129  * writing the appropriate text to the "mode" file. A resource group enters
 130  * "pseudo-locked" mode after the schemata is written while the resource
 131  * group is in "pseudo-locksetup" mode.
 132  */
 133 enum rdtgrp_mode {
 134         RDT_MODE_SHAREABLE = 0,
 135         RDT_MODE_EXCLUSIVE,
 136         RDT_MODE_PSEUDO_LOCKSETUP,
 137         RDT_MODE_PSEUDO_LOCKED,
 138
 139         /* Must be last */
 140         RDT_NUM_MODES,
 141 };
 142
 143 /**
 144  * struct mongroup - store mon group's data in resctrl fs.
 145  * @mon_data_kn         kernlfs node for the mon_data directory
 146  * @parent:                     parent rdtgrp
 147  * @crdtgrp_list:               child rdtgroup node list
 148  * @rmid:                       rmid for this rdtgroup
 149  */
 150 struct mongroup {
 151         struct kernfs_node      *mon_data_kn;
 152         struct rdtgroup         *parent;
 153         struct list_head        crdtgrp_list;
 154         u32                     rmid;
 155 };
 156
 157 /**
 158  * struct pseudo_lock_region - pseudo-lock region information
 159  * @r:                  RDT resource to which this pseudo-locked region
 160  *                      belongs
 161  * @d:                  RDT domain to which this pseudo-locked region
 162  *                      belongs
 163  * @cbm:                bitmask of the pseudo-locked region
 164  * @lock_thread_wq:     waitqueue used to wait on the pseudo-locking thread
 165  *                      completion
 166  * @thread_done:        variable used by waitqueue to test if pseudo-locking
 167  *                      thread completed
 168  * @cpu:                core associated with the cache on which the setup code
 169  *                      will be run
 170  * @line_size:          size of the cache lines
 171  * @size:               size of pseudo-locked region in bytes
 172  * @kmem:               the kernel memory associated with pseudo-locked region
 173  * @minor:              minor number of character device associated with this
 174  *                      region
 175  * @debugfs_dir:        pointer to this region's directory in the debugfs
 176  *                      filesystem
 177  * @pm_reqs:            Power management QoS requests related to this region
 178  */
 179 struct pseudo_lock_region {
 180         struct rdt_resource     *r;
 181         struct rdt_domain       *d;
 182         u32                     cbm;
 183         wait_queue_head_t       lock_thread_wq;
 184         int                     thread_done;
 185         int                     cpu;
 186         unsigned int            line_size;
 187         unsigned int            size;
 188         void                    *kmem;
 189         unsigned int            minor;
 190         struct dentry           *debugfs_dir;
 191         struct list_head        pm_reqs;
 192 };
 193
 194 /**
 195  * struct rdtgroup - store rdtgroup's data in resctrl file system.
 196  * @kn:                         kernfs node
 197  * @rdtgroup_list:              linked list for all rdtgroups
 198  * @closid:                     closid for this rdtgroup
 199  * @cpu_mask:                   CPUs assigned to this rdtgroup
 200  * @flags:                      status bits
 201  * @waitcount:                  how many cpus expect to find this
 202  *                              group when they acquire rdtgroup_mutex
 203  * @type:                       indicates type of this rdtgroup - either
 204  *                              monitor only or ctrl_mon group
 205  * @mon:                        mongroup related data
 206  * @mode:                       mode of resource group
 207  * @plr:                        pseudo-locked region
 208  */
 209 struct rdtgroup {
 210         struct kernfs_node              *kn;
 211         struct list_head                rdtgroup_list;
 212         u32                             closid;
 213         struct cpumask                  cpu_mask;
 214         int                             flags;
 215         atomic_t                        waitcount;
 216         enum rdt_group_type             type;
 217         struct mongroup                 mon;
 218         enum rdtgrp_mode                mode;
 219         struct pseudo_lock_region       *plr;
 220 };
 221
 222 /* rdtgroup.flags */
 223 #define RDT_DELETED             1
 224
 225 /* rftype.flags */
 226 #define RFTYPE_FLAGS_CPUS_LIST  1
 227
 228 /*
 229  * Define the file type flags for base and info directories.
 230  */
 231 #define RFTYPE_INFO                     BIT(0)
 232 #define RFTYPE_BASE                     BIT(1)
 233 #define RF_CTRLSHIFT                    4
 234 #define RF_MONSHIFT                     5
 235 #define RF_TOPSHIFT                     6
 236 #define RFTYPE_CTRL                     BIT(RF_CTRLSHIFT)
 237 #define RFTYPE_MON                      BIT(RF_MONSHIFT)
 238 #define RFTYPE_TOP                      BIT(RF_TOPSHIFT)
 239 #define RFTYPE_RES_CACHE                BIT(8)
 240 #define RFTYPE_RES_MB                   BIT(9)
 241 #define RF_CTRL_INFO                    (RFTYPE_INFO | RFTYPE_CTRL)
 242 #define RF_MON_INFO                     (RFTYPE_INFO | RFTYPE_MON)
 243 #define RF_TOP_INFO                     (RFTYPE_INFO | RFTYPE_TOP)
 244 #define RF_CTRL_BASE                    (RFTYPE_BASE | RFTYPE_CTRL)
 245
 246 /* List of all resource groups */
 247 extern struct list_head rdt_all_groups;
 248
 249 extern int max_name_width, max_data_width;
 250
 251 int __init rdtgroup_init(void);
 252 void __exit rdtgroup_exit(void);
 253
 254 /**
 255  * struct rftype - describe each file in the resctrl file system
 256  * @name:       File name
 257  * @mode:       Access mode
 258  * @kf_ops:     File operations
 259  * @flags:      File specific RFTYPE_FLAGS_* flags
 260  * @fflags:     File specific RF_* or RFTYPE_* flags
 261  * @seq_show:   Show content of the file
 262  * @write:      Write to the file
 263  */
 264 struct rftype {
 265         char                    *name;
 266         umode_t                 mode;
 267         struct kernfs_ops       *kf_ops;
 268         unsigned long           flags;
 269         unsigned long           fflags;
 270
 271         int (*seq_show)(struct kernfs_open_file *of,
 272                         struct seq_file *sf, void *v);
 273         /*
 274          * write() is the generic write callback which maps directly to
 275          * kernfs write operation and overrides all other operations.
 276          * Maximum write size is determined by ->max_write_len.
 277          */
 278         ssize_t (*write)(struct kernfs_open_file *of,
 279                          char *buf, size_t nbytes, loff_t off);
 280 };
 281
 282 /**
 283  * struct mbm_state - status for each MBM counter in each domain
 284  * @chunks:     Total data moved (multiply by rdt_group.mon_scale to get bytes)
 285  * @prev_msr    Value of IA32_QM_CTR for this RMID last time we read it
 286  * @prev_bw_msr:Value of previous IA32_QM_CTR for bandwidth counting
 287  * @prev_bw     The most recent bandwidth in MBps
 288  * @delta_bw    Difference between the current and previous bandwidth
 289  * @delta_comp  Indicates whether to compute the delta_bw
 290  */
 291 struct mbm_state {
 292         u64     chunks;
 293         u64     prev_msr;
 294         u64     prev_bw_msr;
 295         u32     prev_bw;
 296         u32     delta_bw;
 297         bool    delta_comp;
 298 };
 299
 300 /**
 301  * struct rdt_domain - group of cpus sharing an RDT resource
 302  * @list:       all instances of this resource
 303  * @id:         unique id for this instance
 304  * @cpu_mask:   which cpus share this resource
 305  * @rmid_busy_llc:
 306  *              bitmap of which limbo RMIDs are above threshold
 307  * @mbm_total:  saved state for MBM total bandwidth
 308  * @mbm_local:  saved state for MBM local bandwidth
 309  * @mbm_over:   worker to periodically read MBM h/w counters
 310  * @cqm_limbo:  worker to periodically read CQM h/w counters
 311  * @mbm_work_cpu:
 312  *              worker cpu for MBM h/w counters
 313  * @cqm_work_cpu:
 314  *              worker cpu for CQM h/w counters
 315  * @ctrl_val:   array of cache or mem ctrl values (indexed by CLOSID)
 316  * @mbps_val:   When mba_sc is enabled, this holds the bandwidth in MBps
 317  * @new_ctrl:   new ctrl value to be loaded
 318  * @have_new_ctrl: did user provide new_ctrl for this domain
 319  * @plr:        pseudo-locked region (if any) associated with domain
 320  */
 321 struct rdt_domain {
 322         struct list_head                list;
 323         int                             id;
 324         struct cpumask                  cpu_mask;
 325         unsigned long                   *rmid_busy_llc;
 326         struct mbm_state                *mbm_total;
 327         struct mbm_state                *mbm_local;
 328         struct delayed_work             mbm_over;
 329         struct delayed_work             cqm_limbo;
 330         int                             mbm_work_cpu;
 331         int                             cqm_work_cpu;
 332         u32                             *ctrl_val;
 333         u32                             *mbps_val;
 334         u32                             new_ctrl;
 335         bool                            have_new_ctrl;
 336         struct pseudo_lock_region       *plr;
 337 };
 338
 339 /**
 340  * struct msr_param - set a range of MSRs from a domain
 341  * @res:       The resource to use
 342  * @low:       Beginning index from base MSR
 343  * @high:      End index
 344  */
 345 struct msr_param {
 346         struct rdt_resource     *res;
 347         int                     low;
 348         int                     high;
 349 };
 350
 351 /**
 352  * struct rdt_cache - Cache allocation related data
 353  * @cbm_len:            Length of the cache bit mask
 354  * @min_cbm_bits:       Minimum number of consecutive bits to be set
 355  * @cbm_idx_mult:       Multiplier of CBM index
 356  * @cbm_idx_offset:     Offset of CBM index. CBM index is computed by:
 357  *                      closid * cbm_idx_multi + cbm_idx_offset
 358  *                      in a cache bit mask
 359  * @shareable_bits:     Bitmask of shareable resource with other
 360  *                      executing entities
 361  */
 362 struct rdt_cache {
 363         unsigned int    cbm_len;
 364         unsigned int    min_cbm_bits;
 365         unsigned int    cbm_idx_mult;
 366         unsigned int    cbm_idx_offset;
 367         unsigned int    shareable_bits;
 368 };
 369
 370 /**
 371  * struct rdt_membw - Memory bandwidth allocation related data
 372  * @min_bw:             Minimum memory bandwidth percentage user can request
 373  * @bw_gran:            Granularity at which the memory bandwidth is allocated
 374  * @delay_linear:       True if memory B/W delay is in linear scale
 375  * @mba_sc:             True if MBA software controller(mba_sc) is enabled
 376  * @mb_map:             Mapping of memory B/W percentage to memory B/W delay
 377  */
 378 struct rdt_membw {
 379         u32             min_bw;
 380         u32             bw_gran;
 381         u32             delay_linear;
 382         bool            mba_sc;
 383         u32             *mb_map;
 384 };
 385
 386 static inline bool is_llc_occupancy_enabled(void)
 387 {
 388         return (rdt_mon_features & (1 << QOS_L3_OCCUP_EVENT_ID));
 389 }
 390
 391 static inline bool is_mbm_total_enabled(void)
 392 {
 393         return (rdt_mon_features & (1 << QOS_L3_MBM_TOTAL_EVENT_ID));
 394 }
 395
 396 static inline bool is_mbm_local_enabled(void)
 397 {
 398         return (rdt_mon_features & (1 << QOS_L3_MBM_LOCAL_EVENT_ID));
 399 }
 400
 401 static inline bool is_mbm_enabled(void)
 402 {
 403         return (is_mbm_total_enabled() || is_mbm_local_enabled());
 404 }
 405
 406 static inline bool is_mbm_event(int e)
 407 {
 408         return (e >= QOS_L3_MBM_TOTAL_EVENT_ID &&
 409                 e <= QOS_L3_MBM_LOCAL_EVENT_ID);
 410 }
 411
 412 struct rdt_parse_data {
 413         struct rdtgroup         *rdtgrp;
 414         char                    *buf;
 415 };
 416
 417 /**
 418  * struct rdt_resource - attributes of an RDT resource
 419  * @rid:                The index of the resource
 420  * @alloc_enabled:      Is allocation enabled on this machine
 421  * @mon_enabled:        Is monitoring enabled for this feature
 422  * @alloc_capable:      Is allocation available on this machine
 423  * @mon_capable:        Is monitor feature available on this machine
 424  * @name:               Name to use in "schemata" file
 425  * @num_closid:         Number of CLOSIDs available
 426  * @cache_level:        Which cache level defines scope of this resource
 427  * @default_ctrl:       Specifies default cache cbm or memory B/W percent.
 428  * @msr_base:           Base MSR address for CBMs
 429  * @msr_update:         Function pointer to update QOS MSRs
 430  * @data_width:         Character width of data when displaying
 431  * @domains:            All domains for this resource
 432  * @cache:              Cache allocation related data
 433  * @format_str:         Per resource format string to show domain value
 434  * @parse_ctrlval:      Per resource function pointer to parse control values
 435  * @cbm_validate        Cache bitmask validate function
 436  * @evt_list:           List of monitoring events
 437  * @num_rmid:           Number of RMIDs available
 438  * @mon_scale:          cqm counter * mon_scale = occupancy in bytes
 439  * @fflags:             flags to choose base and info files
 440  */
 441 struct rdt_resource {
 442         int                     rid;
 443         bool                    alloc_enabled;
 444         bool                    mon_enabled;
 445         bool                    alloc_capable;
 446         bool                    mon_capable;
 447         char                    *name;
 448         int                     num_closid;
 449         int                     cache_level;
 450         u32                     default_ctrl;
 451         unsigned int            msr_base;
 452         void (*msr_update)      (struct rdt_domain *d, struct msr_param *m,
 453                                  struct rdt_resource *r);
 454         int                     data_width;
 455         struct list_head        domains;
 456         struct rdt_cache        cache;
 457         struct rdt_membw        membw;
 458         const char              *format_str;
 459         int (*parse_ctrlval)(struct rdt_parse_data *data,
 460                              struct rdt_resource *r,
 461                              struct rdt_domain *d);
 462         bool (*cbm_validate)(char *buf, u32 *data, struct rdt_resource *r);
 463         struct list_head        evt_list;
 464         int                     num_rmid;
 465         unsigned int            mon_scale;
 466         unsigned int            mbm_width;
 467         unsigned long           fflags;
 468 };
 469
 470 int parse_cbm(struct rdt_parse_data *data, struct rdt_resource *r,
 471               struct rdt_domain *d);
 472 int parse_bw_intel(struct rdt_parse_data *data, struct rdt_resource *r,
 473                    struct rdt_domain *d);
 474 int parse_bw_amd(struct rdt_parse_data *data, struct rdt_resource *r,
 475                  struct rdt_domain *d);
 476
 477 extern struct mutex rdtgroup_mutex;
 478
 479 extern struct rdt_resource rdt_resources_all[];
 480 extern struct rdtgroup rdtgroup_default;
 481 DECLARE_STATIC_KEY_FALSE(rdt_alloc_enable_key);
 482
 483 extern struct dentry *debugfs_resctrl;
 484
 485 enum {
 486         RDT_RESOURCE_L3,
 487         RDT_RESOURCE_L3DATA,
 488         RDT_RESOURCE_L3CODE,
 489         RDT_RESOURCE_L2,
 490         RDT_RESOURCE_L2DATA,
 491         RDT_RESOURCE_L2CODE,
 492         RDT_RESOURCE_MBA,
 493
 494         /* Must be the last */
 495         RDT_NUM_RESOURCES,
 496 };
 497
 498 #define for_each_rdt_resource(r)                                              \
 499         for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
 500              r++)
 501
 502 #define for_each_capable_rdt_resource(r)                                      \
 503         for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
 504              r++)                                                             \
 505                 if (r->alloc_capable || r->mon_capable)
 506
 507 #define for_each_alloc_capable_rdt_resource(r)                                \
 508         for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
 509              r++)                                                             \
 510                 if (r->alloc_capable)
 511
 512 #define for_each_mon_capable_rdt_resource(r)                                  \
 513         for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
 514              r++)                                                             \
 515                 if (r->mon_capable)
 516
 517 #define for_each_alloc_enabled_rdt_resource(r)                                \
 518         for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
 519              r++)                                                             \
 520                 if (r->alloc_enabled)
 521
 522 #define for_each_mon_enabled_rdt_resource(r)                                  \
 523         for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
 524              r++)                                                             \
 525                 if (r->mon_enabled)
 526
 527 /* CPUID.(EAX=10H, ECX=ResID=1).EAX */
 528 union cpuid_0x10_1_eax {
 529         struct {
 530                 unsigned int cbm_len:5;
 531         } split;
 532         unsigned int full;
 533 };
 534
 535 /* CPUID.(EAX=10H, ECX=ResID=3).EAX */
 536 union cpuid_0x10_3_eax {
 537         struct {
 538                 unsigned int max_delay:12;
 539         } split;
 540         unsigned int full;
 541 };
 542
 543 /* CPUID.(EAX=10H, ECX=ResID).EDX */
 544 union cpuid_0x10_x_edx {
 545         struct {
 546                 unsigned int cos_max:16;
 547         } split;
 548         unsigned int full;
 549 };
 550
 551 void rdt_last_cmd_clear(void);
 552 void rdt_last_cmd_puts(const char *s);
 553 void rdt_last_cmd_printf(const char *fmt, ...);
 554
 555 void rdt_ctrl_update(void *arg);
 556 struct rdtgroup *rdtgroup_kn_lock_live(struct kernfs_node *kn);
 557 void rdtgroup_kn_unlock(struct kernfs_node *kn);
 558 int rdtgroup_kn_mode_restrict(struct rdtgroup *r, const char *name);
 559 int rdtgroup_kn_mode_restore(struct rdtgroup *r, const char *name,
 560                              umode_t mask);
 561 struct rdt_domain *rdt_find_domain(struct rdt_resource *r, int id,
 562                                    struct list_head **pos);
 563 ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
 564                                 char *buf, size_t nbytes, loff_t off);
 565 int rdtgroup_schemata_show(struct kernfs_open_file *of,
 566                            struct seq_file *s, void *v);
 567 bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d,
 568                            unsigned long cbm, int closid, bool exclusive);
 569 unsigned int rdtgroup_cbm_to_size(struct rdt_resource *r, struct rdt_domain *d,
 570                                   unsigned long cbm);
 571 enum rdtgrp_mode rdtgroup_mode_by_closid(int closid);
 572 int rdtgroup_tasks_assigned(struct rdtgroup *r);
 573 int rdtgroup_locksetup_enter(struct rdtgroup *rdtgrp);
 574 int rdtgroup_locksetup_exit(struct rdtgroup *rdtgrp);
 575 bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, unsigned long cbm);
 576 bool rdtgroup_pseudo_locked_in_hierarchy(struct rdt_domain *d);
 577 int rdt_pseudo_lock_init(void);
 578 void rdt_pseudo_lock_release(void);
 579 int rdtgroup_pseudo_lock_create(struct rdtgroup *rdtgrp);
 580 void rdtgroup_pseudo_lock_remove(struct rdtgroup *rdtgrp);
 581 struct rdt_domain *get_domain_from_cpu(int cpu, struct rdt_resource *r);
 582 int update_domains(struct rdt_resource *r, int closid);
 583 int closids_supported(void);
 584 void closid_free(int closid);
 585 int alloc_rmid(void);
 586 void free_rmid(u32 rmid);
 587 int rdt_get_mon_l3_config(struct rdt_resource *r);
 588 void mon_event_count(void *info);
 589 int rdtgroup_mondata_show(struct seq_file *m, void *arg);
 590 void rmdir_mondata_subdir_allrdtgrp(struct rdt_resource *r,
 591                                     unsigned int dom_id);
 592 void mkdir_mondata_subdir_allrdtgrp(struct rdt_resource *r,
 593                                     struct rdt_domain *d);
 594 void mon_event_read(struct rmid_read *rr, struct rdt_resource *r,
 595                     struct rdt_domain *d, struct rdtgroup *rdtgrp,
 596                     int evtid, int first);
 597 void mbm_setup_overflow_handler(struct rdt_domain *dom,
 598                                 unsigned long delay_ms);
 599 void mbm_handle_overflow(struct work_struct *work);
 600 bool is_mba_sc(struct rdt_resource *r);
 601 void setup_default_ctrlval(struct rdt_resource *r, u32 *dc, u32 *dm);
 602 u32 delay_bw_map(unsigned long bw, struct rdt_resource *r);
 603 void cqm_setup_limbo_handler(struct rdt_domain *dom, unsigned long delay_ms);
 604 void cqm_handle_limbo(struct work_struct *work);
 605 bool has_busy_rmid(struct rdt_resource *r, struct rdt_domain *d);
 606 void __check_limbo(struct rdt_domain *d, bool force_free);
 607 bool cbm_validate_intel(char *buf, u32 *data, struct rdt_resource *r);
 608 bool cbm_validate_amd(char *buf, u32 *data, struct rdt_resource *r);
 609 void rdt_domain_reconfigure_cdp(struct rdt_resource *r);
 610
 611 #endif /* _ASM_X86_RESCTRL_INTERNAL_H */