diff options
Diffstat (limited to 'arch/x86/kernel/cpu/resctrl/internal.h')
| -rw-r--r-- | arch/x86/kernel/cpu/resctrl/internal.h | 676 |
1 files changed, 130 insertions, 546 deletions
diff --git a/arch/x86/kernel/cpu/resctrl/internal.h b/arch/x86/kernel/cpu/resctrl/internal.h index 6a5f60a37219..4a916c84a322 100644 --- a/arch/x86/kernel/cpu/resctrl/internal.h +++ b/arch/x86/kernel/cpu/resctrl/internal.h @@ -2,45 +2,22 @@ #ifndef _ASM_X86_RESCTRL_INTERNAL_H #define _ASM_X86_RESCTRL_INTERNAL_H -#include <linux/sched.h> -#include <linux/kernfs.h> -#include <linux/fs_context.h> -#include <linux/jump_label.h> - -#define MSR_IA32_L3_QOS_CFG 0xc81 -#define MSR_IA32_L2_QOS_CFG 0xc82 -#define MSR_IA32_L3_CBM_BASE 0xc90 -#define MSR_IA32_L2_CBM_BASE 0xd10 -#define MSR_IA32_MBA_THRTL_BASE 0xd50 -#define MSR_IA32_MBA_BW_BASE 0xc0000200 - -#define MSR_IA32_QM_CTR 0x0c8e -#define MSR_IA32_QM_EVTSEL 0x0c8d +#include <linux/resctrl.h> #define L3_QOS_CDP_ENABLE 0x01ULL #define L2_QOS_CDP_ENABLE 0x01ULL -/* - * Event IDs are used to program IA32_QM_EVTSEL before reading event - * counter from IA32_QM_CTR - */ -#define QOS_L3_OCCUP_EVENT_ID 0x01 -#define QOS_L3_MBM_TOTAL_EVENT_ID 0x02 -#define QOS_L3_MBM_LOCAL_EVENT_ID 0x03 - -#define CQM_LIMBOCHECK_INTERVAL 1000 - #define MBM_CNTR_WIDTH_BASE 24 -#define MBM_OVERFLOW_INTERVAL 1000 -#define MAX_MBA_BW 100u + #define MBA_IS_LINEAR 0x4 -#define MBA_MAX_MBPS U32_MAX -#define MAX_MBA_BW_AMD 0x800 + #define MBM_CNTR_WIDTH_OFFSET_AMD 20 #define RMID_VAL_ERROR BIT_ULL(63) + #define RMID_VAL_UNAVAIL BIT_ULL(62) + /* * With the above fields in use 62 bits remain in MSR_IA32_QM_CTR for * data to be returned. The counter width is discovered from the hardware @@ -48,510 +25,122 @@ */ #define MBM_CNTR_WIDTH_OFFSET_MAX (62 - MBM_CNTR_WIDTH_BASE) - -struct rdt_fs_context { - struct kernfs_fs_context kfc; - bool enable_cdpl2; - bool enable_cdpl3; - bool enable_mba_mbps; -}; - -static inline struct rdt_fs_context *rdt_fc2context(struct fs_context *fc) -{ - struct kernfs_fs_context *kfc = fc->fs_private; - - return container_of(kfc, struct rdt_fs_context, kfc); -} - -DECLARE_STATIC_KEY_FALSE(rdt_enable_key); -DECLARE_STATIC_KEY_FALSE(rdt_mon_enable_key); - -/** - * struct mon_evt - Entry in the event list of a resource - * @evtid: event id - * @name: name of the event - * @list: entry in &rdt_resource->evt_list - */ -struct mon_evt { - u32 evtid; - char *name; - struct list_head list; -}; - /** - * union mon_data_bits - Monitoring details for each event file - * @priv: Used to store monitoring event data in @u - * as kernfs private data - * @rid: Resource id associated with the event file - * @evtid: Event id associated with the event file - * @domid: The domain to which the event file belongs - * @u: Name of the bit fields struct + * struct arch_mbm_state - values used to compute resctrl_arch_rmid_read()s + * return value. + * @chunks: Total data moved (multiply by rdt_group.mon_scale to get bytes) + * @prev_msr: Value of IA32_QM_CTR last time it was read for the RMID used to + * find this struct. */ -union mon_data_bits { - void *priv; - struct { - unsigned int rid : 10; - unsigned int evtid : 8; - unsigned int domid : 14; - } u; -}; - -struct rmid_read { - struct rdtgroup *rgrp; - struct rdt_resource *r; - struct rdt_domain *d; - int evtid; - bool first; - u64 val; -}; - -extern unsigned int resctrl_cqm_threshold; -extern bool rdt_alloc_capable; -extern bool rdt_mon_capable; -extern unsigned int rdt_mon_features; - -enum rdt_group_type { - RDTCTRL_GROUP = 0, - RDTMON_GROUP, - RDT_NUM_GROUP, +struct arch_mbm_state { + u64 chunks; + u64 prev_msr; }; -/** - * enum rdtgrp_mode - Mode of a RDT resource group - * @RDT_MODE_SHAREABLE: This resource group allows sharing of its allocations - * @RDT_MODE_EXCLUSIVE: No sharing of this resource group's allocations allowed - * @RDT_MODE_PSEUDO_LOCKSETUP: Resource group will be used for Pseudo-Locking - * @RDT_MODE_PSEUDO_LOCKED: No sharing of this resource group's allocations - * allowed AND the allocations are Cache Pseudo-Locked - * @RDT_NUM_MODES: Total number of modes - * - * The mode of a resource group enables control over the allowed overlap - * between allocations associated with different resource groups (classes - * of service). User is able to modify the mode of a resource group by - * writing to the "mode" resctrl file associated with the resource group. - * - * The "shareable", "exclusive", and "pseudo-locksetup" modes are set by - * writing the appropriate text to the "mode" file. A resource group enters - * "pseudo-locked" mode after the schemata is written while the resource - * group is in "pseudo-locksetup" mode. - */ -enum rdtgrp_mode { - RDT_MODE_SHAREABLE = 0, - RDT_MODE_EXCLUSIVE, - RDT_MODE_PSEUDO_LOCKSETUP, - RDT_MODE_PSEUDO_LOCKED, - - /* Must be last */ - RDT_NUM_MODES, -}; +/* Setting bit 0 in L3_QOS_EXT_CFG enables the ABMC feature. */ +#define ABMC_ENABLE_BIT 0 -/** - * struct mongroup - store mon group's data in resctrl fs. - * @mon_data_kn: kernfs node for the mon_data directory - * @parent: parent rdtgrp - * @crdtgrp_list: child rdtgroup node list - * @rmid: rmid for this rdtgroup +/* + * Qos Event Identifiers. */ -struct mongroup { - struct kernfs_node *mon_data_kn; - struct rdtgroup *parent; - struct list_head crdtgrp_list; - u32 rmid; -}; +#define ABMC_EXTENDED_EVT_ID BIT(31) +#define ABMC_EVT_ID BIT(0) -/** - * struct pseudo_lock_region - pseudo-lock region information - * @r: RDT resource to which this pseudo-locked region - * belongs - * @d: RDT domain to which this pseudo-locked region - * belongs - * @cbm: bitmask of the pseudo-locked region - * @lock_thread_wq: waitqueue used to wait on the pseudo-locking thread - * completion - * @thread_done: variable used by waitqueue to test if pseudo-locking - * thread completed - * @cpu: core associated with the cache on which the setup code - * will be run - * @line_size: size of the cache lines - * @size: size of pseudo-locked region in bytes - * @kmem: the kernel memory associated with pseudo-locked region - * @minor: minor number of character device associated with this - * region - * @debugfs_dir: pointer to this region's directory in the debugfs - * filesystem - * @pm_reqs: Power management QoS requests related to this region - */ -struct pseudo_lock_region { - struct rdt_resource *r; - struct rdt_domain *d; - u32 cbm; - wait_queue_head_t lock_thread_wq; - int thread_done; - int cpu; - unsigned int line_size; - unsigned int size; - void *kmem; - unsigned int minor; - struct dentry *debugfs_dir; - struct list_head pm_reqs; -}; +/* Setting bit 1 in MSR_IA32_L3_QOS_EXT_CFG enables the SDCIAE feature. */ +#define SDCIAE_ENABLE_BIT 1 /** - * struct rdtgroup - store rdtgroup's data in resctrl file system. - * @kn: kernfs node - * @rdtgroup_list: linked list for all rdtgroups - * @closid: closid for this rdtgroup - * @cpu_mask: CPUs assigned to this rdtgroup - * @flags: status bits - * @waitcount: how many cpus expect to find this - * group when they acquire rdtgroup_mutex - * @type: indicates type of this rdtgroup - either - * monitor only or ctrl_mon group - * @mon: mongroup related data - * @mode: mode of resource group - * @plr: pseudo-locked region + * struct rdt_hw_ctrl_domain - Arch private attributes of a set of CPUs that share + * a resource for a control function + * @d_resctrl: Properties exposed to the resctrl file system + * @ctrl_val: array of cache or mem ctrl values (indexed by CLOSID) + * + * Members of this structure are accessed via helpers that provide abstraction. */ -struct rdtgroup { - struct kernfs_node *kn; - struct list_head rdtgroup_list; - u32 closid; - struct cpumask cpu_mask; - int flags; - atomic_t waitcount; - enum rdt_group_type type; - struct mongroup mon; - enum rdtgrp_mode mode; - struct pseudo_lock_region *plr; +struct rdt_hw_ctrl_domain { + struct rdt_ctrl_domain d_resctrl; + u32 *ctrl_val; }; -/* rdtgroup.flags */ -#define RDT_DELETED 1 - -/* rftype.flags */ -#define RFTYPE_FLAGS_CPUS_LIST 1 - -/* - * Define the file type flags for base and info directories. - */ -#define RFTYPE_INFO BIT(0) -#define RFTYPE_BASE BIT(1) -#define RF_CTRLSHIFT 4 -#define RF_MONSHIFT 5 -#define RF_TOPSHIFT 6 -#define RFTYPE_CTRL BIT(RF_CTRLSHIFT) -#define RFTYPE_MON BIT(RF_MONSHIFT) -#define RFTYPE_TOP BIT(RF_TOPSHIFT) -#define RFTYPE_RES_CACHE BIT(8) -#define RFTYPE_RES_MB BIT(9) -#define RF_CTRL_INFO (RFTYPE_INFO | RFTYPE_CTRL) -#define RF_MON_INFO (RFTYPE_INFO | RFTYPE_MON) -#define RF_TOP_INFO (RFTYPE_INFO | RFTYPE_TOP) -#define RF_CTRL_BASE (RFTYPE_BASE | RFTYPE_CTRL) - -/* List of all resource groups */ -extern struct list_head rdt_all_groups; - -extern int max_name_width, max_data_width; - -int __init rdtgroup_init(void); -void __exit rdtgroup_exit(void); - /** - * struct rftype - describe each file in the resctrl file system - * @name: File name - * @mode: Access mode - * @kf_ops: File operations - * @flags: File specific RFTYPE_FLAGS_* flags - * @fflags: File specific RF_* or RFTYPE_* flags - * @seq_show: Show content of the file - * @write: Write to the file + * struct rdt_hw_mon_domain - Arch private attributes of a set of CPUs that share + * a resource for a monitor function + * @d_resctrl: Properties exposed to the resctrl file system + * @arch_mbm_states: Per-event pointer to the MBM event's saved state. + * An MBM event's state is an array of struct arch_mbm_state + * indexed by RMID on x86. + * + * Members of this structure are accessed via helpers that provide abstraction. */ -struct rftype { - char *name; - umode_t mode; - const struct kernfs_ops *kf_ops; - unsigned long flags; - unsigned long fflags; - - int (*seq_show)(struct kernfs_open_file *of, - struct seq_file *sf, void *v); - /* - * write() is the generic write callback which maps directly to - * kernfs write operation and overrides all other operations. - * Maximum write size is determined by ->max_write_len. - */ - ssize_t (*write)(struct kernfs_open_file *of, - char *buf, size_t nbytes, loff_t off); +struct rdt_hw_mon_domain { + struct rdt_mon_domain d_resctrl; + struct arch_mbm_state *arch_mbm_states[QOS_NUM_L3_MBM_EVENTS]; }; -/** - * struct mbm_state - status for each MBM counter in each domain - * @chunks: Total data moved (multiply by rdt_group.mon_scale to get bytes) - * @prev_msr: Value of IA32_QM_CTR for this RMID last time we read it - * @prev_bw_msr:Value of previous IA32_QM_CTR for bandwidth counting - * @prev_bw: The most recent bandwidth in MBps - * @delta_bw: Difference between the current and previous bandwidth - * @delta_comp: Indicates whether to compute the delta_bw - */ -struct mbm_state { - u64 chunks; - u64 prev_msr; - u64 prev_bw_msr; - u32 prev_bw; - u32 delta_bw; - bool delta_comp; -}; +static inline struct rdt_hw_ctrl_domain *resctrl_to_arch_ctrl_dom(struct rdt_ctrl_domain *r) +{ + return container_of(r, struct rdt_hw_ctrl_domain, d_resctrl); +} -/** - * struct rdt_domain - group of cpus sharing an RDT resource - * @list: all instances of this resource - * @id: unique id for this instance - * @cpu_mask: which cpus share this resource - * @rmid_busy_llc: - * bitmap of which limbo RMIDs are above threshold - * @mbm_total: saved state for MBM total bandwidth - * @mbm_local: saved state for MBM local bandwidth - * @mbm_over: worker to periodically read MBM h/w counters - * @cqm_limbo: worker to periodically read CQM h/w counters - * @mbm_work_cpu: - * worker cpu for MBM h/w counters - * @cqm_work_cpu: - * worker cpu for CQM h/w counters - * @ctrl_val: array of cache or mem ctrl values (indexed by CLOSID) - * @mbps_val: When mba_sc is enabled, this holds the bandwidth in MBps - * @new_ctrl: new ctrl value to be loaded - * @have_new_ctrl: did user provide new_ctrl for this domain - * @plr: pseudo-locked region (if any) associated with domain - */ -struct rdt_domain { - struct list_head list; - int id; - struct cpumask cpu_mask; - unsigned long *rmid_busy_llc; - struct mbm_state *mbm_total; - struct mbm_state *mbm_local; - struct delayed_work mbm_over; - struct delayed_work cqm_limbo; - int mbm_work_cpu; - int cqm_work_cpu; - u32 *ctrl_val; - u32 *mbps_val; - u32 new_ctrl; - bool have_new_ctrl; - struct pseudo_lock_region *plr; -}; +static inline struct rdt_hw_mon_domain *resctrl_to_arch_mon_dom(struct rdt_mon_domain *r) +{ + return container_of(r, struct rdt_hw_mon_domain, d_resctrl); +} /** * struct msr_param - set a range of MSRs from a domain * @res: The resource to use + * @dom: The domain to update * @low: Beginning index from base MSR * @high: End index */ struct msr_param { struct rdt_resource *res; - int low; - int high; -}; - -/** - * struct rdt_cache - Cache allocation related data - * @cbm_len: Length of the cache bit mask - * @min_cbm_bits: Minimum number of consecutive bits to be set - * @cbm_idx_mult: Multiplier of CBM index - * @cbm_idx_offset: Offset of CBM index. CBM index is computed by: - * closid * cbm_idx_multi + cbm_idx_offset - * in a cache bit mask - * @shareable_bits: Bitmask of shareable resource with other - * executing entities - * @arch_has_sparse_bitmaps: True if a bitmap like f00f is valid. - * @arch_has_empty_bitmaps: True if the '0' bitmap is valid. - * @arch_has_per_cpu_cfg: True if QOS_CFG register for this cache - * level has CPU scope. - */ -struct rdt_cache { - unsigned int cbm_len; - unsigned int min_cbm_bits; - unsigned int cbm_idx_mult; - unsigned int cbm_idx_offset; - unsigned int shareable_bits; - bool arch_has_sparse_bitmaps; - bool arch_has_empty_bitmaps; - bool arch_has_per_cpu_cfg; + struct rdt_ctrl_domain *dom; + u32 low; + u32 high; }; /** - * enum membw_throttle_mode - System's memory bandwidth throttling mode - * @THREAD_THROTTLE_UNDEFINED: Not relevant to the system - * @THREAD_THROTTLE_MAX: Memory bandwidth is throttled at the core - * always using smallest bandwidth percentage - * assigned to threads, aka "max throttling" - * @THREAD_THROTTLE_PER_THREAD: Memory bandwidth is throttled at the thread - */ -enum membw_throttle_mode { - THREAD_THROTTLE_UNDEFINED = 0, - THREAD_THROTTLE_MAX, - THREAD_THROTTLE_PER_THREAD, -}; - -/** - * struct rdt_membw - Memory bandwidth allocation related data - * @min_bw: Minimum memory bandwidth percentage user can request - * @bw_gran: Granularity at which the memory bandwidth is allocated - * @delay_linear: True if memory B/W delay is in linear scale - * @arch_needs_linear: True if we can't configure non-linear resources - * @throttle_mode: Bandwidth throttling mode when threads request - * different memory bandwidths - * @mba_sc: True if MBA software controller(mba_sc) is enabled - * @mb_map: Mapping of memory B/W percentage to memory B/W delay - */ -struct rdt_membw { - u32 min_bw; - u32 bw_gran; - u32 delay_linear; - bool arch_needs_linear; - enum membw_throttle_mode throttle_mode; - bool mba_sc; - u32 *mb_map; -}; - -static inline bool is_llc_occupancy_enabled(void) -{ - return (rdt_mon_features & (1 << QOS_L3_OCCUP_EVENT_ID)); -} - -static inline bool is_mbm_total_enabled(void) -{ - return (rdt_mon_features & (1 << QOS_L3_MBM_TOTAL_EVENT_ID)); -} - -static inline bool is_mbm_local_enabled(void) -{ - return (rdt_mon_features & (1 << QOS_L3_MBM_LOCAL_EVENT_ID)); -} - -static inline bool is_mbm_enabled(void) -{ - return (is_mbm_total_enabled() || is_mbm_local_enabled()); -} - -static inline bool is_mbm_event(int e) -{ - return (e >= QOS_L3_MBM_TOTAL_EVENT_ID && - e <= QOS_L3_MBM_LOCAL_EVENT_ID); -} - -struct rdt_parse_data { - struct rdtgroup *rdtgrp; - char *buf; -}; - -/** - * struct rdt_resource - attributes of an RDT resource - * @rid: The index of the resource - * @alloc_enabled: Is allocation enabled on this machine - * @mon_enabled: Is monitoring enabled for this feature - * @alloc_capable: Is allocation available on this machine - * @mon_capable: Is monitor feature available on this machine - * @name: Name to use in "schemata" file - * @num_closid: Number of CLOSIDs available - * @cache_level: Which cache level defines scope of this resource - * @default_ctrl: Specifies default cache cbm or memory B/W percent. + * struct rdt_hw_resource - arch private attributes of a resctrl resource + * @r_resctrl: Attributes of the resource used directly by resctrl. + * @num_closid: Maximum number of closid this hardware can support, + * regardless of CDP. This is exposed via + * resctrl_arch_get_num_closid() to avoid confusion + * with struct resctrl_schema's property of the same name, + * which has been corrected for features like CDP. * @msr_base: Base MSR address for CBMs * @msr_update: Function pointer to update QOS MSRs - * @data_width: Character width of data when displaying - * @domains: All domains for this resource - * @cache: Cache allocation related data - * @membw: If the component has bandwidth controls, their properties. - * @format_str: Per resource format string to show domain value - * @parse_ctrlval: Per resource function pointer to parse control values - * @evt_list: List of monitoring events - * @num_rmid: Number of RMIDs available * @mon_scale: cqm counter * mon_scale = occupancy in bytes * @mbm_width: Monitor width, to detect and correct for overflow. - * @fflags: flags to choose base and info files + * @cdp_enabled: CDP state of this resource + * @mbm_cntr_assign_enabled: ABMC feature is enabled + * @sdciae_enabled: SDCIAE feature (backing "io_alloc") is enabled. + * + * Members of this structure are either private to the architecture + * e.g. mbm_width, or accessed via helpers that provide abstraction. e.g. + * msr_update and msr_base. */ -struct rdt_resource { - int rid; - bool alloc_enabled; - bool mon_enabled; - bool alloc_capable; - bool mon_capable; - char *name; - int num_closid; - int cache_level; - u32 default_ctrl; +struct rdt_hw_resource { + struct rdt_resource r_resctrl; + u32 num_closid; unsigned int msr_base; - void (*msr_update) (struct rdt_domain *d, struct msr_param *m, - struct rdt_resource *r); - int data_width; - struct list_head domains; - struct rdt_cache cache; - struct rdt_membw membw; - const char *format_str; - int (*parse_ctrlval)(struct rdt_parse_data *data, - struct rdt_resource *r, - struct rdt_domain *d); - struct list_head evt_list; - int num_rmid; + void (*msr_update)(struct msr_param *m); unsigned int mon_scale; unsigned int mbm_width; - unsigned long fflags; + bool cdp_enabled; + bool mbm_cntr_assign_enabled; + bool sdciae_enabled; }; -int parse_cbm(struct rdt_parse_data *data, struct rdt_resource *r, - struct rdt_domain *d); -int parse_bw(struct rdt_parse_data *data, struct rdt_resource *r, - struct rdt_domain *d); - -extern struct mutex rdtgroup_mutex; - -extern struct rdt_resource rdt_resources_all[]; -extern struct rdtgroup rdtgroup_default; -DECLARE_STATIC_KEY_FALSE(rdt_alloc_enable_key); - -extern struct dentry *debugfs_resctrl; - -enum { - RDT_RESOURCE_L3, - RDT_RESOURCE_L3DATA, - RDT_RESOURCE_L3CODE, - RDT_RESOURCE_L2, - RDT_RESOURCE_L2DATA, - RDT_RESOURCE_L2CODE, - RDT_RESOURCE_MBA, - - /* Must be the last */ - RDT_NUM_RESOURCES, -}; - -#define for_each_rdt_resource(r) \ - for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ - r++) - -#define for_each_capable_rdt_resource(r) \ - for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ - r++) \ - if (r->alloc_capable || r->mon_capable) - -#define for_each_alloc_capable_rdt_resource(r) \ - for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ - r++) \ - if (r->alloc_capable) - -#define for_each_mon_capable_rdt_resource(r) \ - for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ - r++) \ - if (r->mon_capable) +static inline struct rdt_hw_resource *resctrl_to_arch_res(struct rdt_resource *r) +{ + return container_of(r, struct rdt_hw_resource, r_resctrl); +} -#define for_each_alloc_enabled_rdt_resource(r) \ - for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ - r++) \ - if (r->alloc_enabled) +extern struct rdt_hw_resource rdt_resources_all[]; -#define for_each_mon_enabled_rdt_resource(r) \ - for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\ - r++) \ - if (r->mon_enabled) +void arch_mon_domain_online(struct rdt_resource *r, struct rdt_mon_domain *d); /* CPUID.(EAX=10H, ECX=ResID=1).EAX */ union cpuid_0x10_1_eax { @@ -569,6 +158,15 @@ union cpuid_0x10_3_eax { unsigned int full; }; +/* CPUID.(EAX=10H, ECX=ResID).ECX */ +union cpuid_0x10_x_ecx { + struct { + unsigned int reserved:3; + unsigned int noncont:1; + } split; + unsigned int full; +}; + /* CPUID.(EAX=10H, ECX=ResID).EDX */ union cpuid_0x10_x_edx { struct { @@ -577,65 +175,51 @@ union cpuid_0x10_x_edx { unsigned int full; }; -void rdt_last_cmd_clear(void); -void rdt_last_cmd_puts(const char *s); -__printf(1, 2) -void rdt_last_cmd_printf(const char *fmt, ...); +/* + * ABMC counters are configured by writing to MSR_IA32_L3_QOS_ABMC_CFG. + * + * @bw_type : Event configuration that represents the memory + * transactions being tracked by the @cntr_id. + * @bw_src : Bandwidth source (RMID or CLOSID). + * @reserved1 : Reserved. + * @is_clos : @bw_src field is a CLOSID (not an RMID). + * @cntr_id : Counter identifier. + * @reserved : Reserved. + * @cntr_en : Counting enable bit. + * @cfg_en : Configuration enable bit. + * + * Configuration and counting: + * Counter can be configured across multiple writes to MSR. Configuration + * is applied only when @cfg_en = 1. Counter @cntr_id is reset when the + * configuration is applied. + * @cfg_en = 1, @cntr_en = 0 : Apply @cntr_id configuration but do not + * count events. + * @cfg_en = 1, @cntr_en = 1 : Apply @cntr_id configuration and start + * counting events. + */ +union l3_qos_abmc_cfg { + struct { + unsigned long bw_type :32, + bw_src :12, + reserved1: 3, + is_clos : 1, + cntr_id : 5, + reserved : 9, + cntr_en : 1, + cfg_en : 1; + } split; + unsigned long full; +}; void rdt_ctrl_update(void *arg); -struct rdtgroup *rdtgroup_kn_lock_live(struct kernfs_node *kn); -void rdtgroup_kn_unlock(struct kernfs_node *kn); -int rdtgroup_kn_mode_restrict(struct rdtgroup *r, const char *name); -int rdtgroup_kn_mode_restore(struct rdtgroup *r, const char *name, - umode_t mask); -struct rdt_domain *rdt_find_domain(struct rdt_resource *r, int id, - struct list_head **pos); -ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of, - char *buf, size_t nbytes, loff_t off); -int rdtgroup_schemata_show(struct kernfs_open_file *of, - struct seq_file *s, void *v); -bool rdtgroup_cbm_overlaps(struct rdt_resource *r, struct rdt_domain *d, - unsigned long cbm, int closid, bool exclusive); -unsigned int rdtgroup_cbm_to_size(struct rdt_resource *r, struct rdt_domain *d, - unsigned long cbm); -enum rdtgrp_mode rdtgroup_mode_by_closid(int closid); -int rdtgroup_tasks_assigned(struct rdtgroup *r); -int rdtgroup_locksetup_enter(struct rdtgroup *rdtgrp); -int rdtgroup_locksetup_exit(struct rdtgroup *rdtgrp); -bool rdtgroup_cbm_overlaps_pseudo_locked(struct rdt_domain *d, unsigned long cbm); -bool rdtgroup_pseudo_locked_in_hierarchy(struct rdt_domain *d); -int rdt_pseudo_lock_init(void); -void rdt_pseudo_lock_release(void); -int rdtgroup_pseudo_lock_create(struct rdtgroup *rdtgrp); -void rdtgroup_pseudo_lock_remove(struct rdtgroup *rdtgrp); -struct rdt_domain *get_domain_from_cpu(int cpu, struct rdt_resource *r); -int update_domains(struct rdt_resource *r, int closid); -int closids_supported(void); -void closid_free(int closid); -int alloc_rmid(void); -void free_rmid(u32 rmid); + int rdt_get_mon_l3_config(struct rdt_resource *r); -void mon_event_count(void *info); -int rdtgroup_mondata_show(struct seq_file *m, void *arg); -void rmdir_mondata_subdir_allrdtgrp(struct rdt_resource *r, - unsigned int dom_id); -void mkdir_mondata_subdir_allrdtgrp(struct rdt_resource *r, - struct rdt_domain *d); -void mon_event_read(struct rmid_read *rr, struct rdt_resource *r, - struct rdt_domain *d, struct rdtgroup *rdtgrp, - int evtid, int first); -void mbm_setup_overflow_handler(struct rdt_domain *dom, - unsigned long delay_ms); -void mbm_handle_overflow(struct work_struct *work); + +bool rdt_cpu_has(int flag); + void __init intel_rdt_mbm_apply_quirk(void); -bool is_mba_sc(struct rdt_resource *r); -void setup_default_ctrlval(struct rdt_resource *r, u32 *dc, u32 *dm); -u32 delay_bw_map(unsigned long bw, struct rdt_resource *r); -void cqm_setup_limbo_handler(struct rdt_domain *dom, unsigned long delay_ms); -void cqm_handle_limbo(struct work_struct *work); -bool has_busy_rmid(struct rdt_resource *r, struct rdt_domain *d); -void __check_limbo(struct rdt_domain *d, bool force_free); + void rdt_domain_reconfigure_cdp(struct rdt_resource *r); -void __init thread_throttle_mode_init(void); +void resctrl_arch_mbm_cntr_assign_set_one(struct rdt_resource *r); #endif /* _ASM_X86_RESCTRL_INTERNAL_H */ |