[mirror_ubuntu-focal-kernel.git] / arch / x86 / kernel / cpu / intel_rdt.h

#ifndef _ASM_X86_INTEL_RDT_H
#define _ASM_X86_INTEL_RDT_H

#include <linux/sched.h>
#include <linux/kernfs.h>
#include <linux/jump_label.h>

#define IA32_L3_QOS_CFG		0xc81
#define IA32_L3_CBM_BASE	0xc90
#define IA32_L2_CBM_BASE	0xd10
#define IA32_MBA_THRTL_BASE	0xd50

#define L3_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 RMID_VAL_ERROR			BIT_ULL(63)
#define RMID_VAL_UNAVAIL		BIT_ULL(62)

/**
 * struct mon_evt - Entry in the event list of a resource
 * @evtid:		event id
 * @name:		name of the event
 */
struct mon_evt {
	u32			evtid;
	char			*name;
	struct list_head	list;
};

/**
 * struct mon_data_bits - Monitoring details for each event file
 * @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
 */
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;
	int			evtid;
	u64			val;
};

extern unsigned int intel_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 mongroup - store mon group's data in resctrl fs.
 * @mon_data_kn		kernlfs node for the mon_data directory
 * @parent:			parent rdtgrp
 * @crdtgrp_list:		child rdtgroup node list
 * @rmid:			rmid for this rdtgroup
 */
struct mongroup {
	struct kernfs_node	*mon_data_kn;
	struct rdtgroup		*parent;
	struct list_head	crdtgrp_list;
	u32			rmid;
};

/**
 * 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
 */
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;
};

/* 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 RFTYPE_CTRL			BIT(RF_CTRLSHIFT)
#define RFTYPE_MON			BIT(RF_MONSHIFT)
#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_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);

/**
 * 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 rftype {
	char			*name;
	umode_t			mode;
	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_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
 * @ctrl_val:	array of cache or mem ctrl values (indexed by CLOSID)
 * @new_ctrl:	new ctrl value to be loaded
 * @have_new_ctrl: did user provide new_ctrl for this domain
 */
struct rdt_domain {
	struct list_head	list;
	int			id;
	struct cpumask		cpu_mask;
	unsigned long		*rmid_busy_llc;
	u32			*ctrl_val;
	u32			new_ctrl;
	bool			have_new_ctrl;
};

/**
 * struct msr_param - set a range of MSRs from a domain
 * @res:       The resource to use
 * @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
 */
struct rdt_cache {
	unsigned int	cbm_len;
	unsigned int	min_cbm_bits;
	unsigned int	cbm_idx_mult;
	unsigned int	cbm_idx_offset;
};

/**
 * struct rdt_membw - Memory bandwidth allocation related data
 * @max_delay:		Max throttle delay. Delay is the hardware
 *			representation for memory bandwidth.
 * @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
 * @mb_map:		Mapping of memory B/W percentage to memory B/W delay
 */
struct rdt_membw {
	u32		max_delay;
	u32		min_bw;
	u32		bw_gran;
	u32		delay_linear;
	u32		*mb_map;
};

static inline bool is_llc_occupancy_enabled(void)
{
	return (rdt_mon_features & (1 << QOS_L3_OCCUP_EVENT_ID));
}

/**
 * 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.
 * @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
 * @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
 * @fflags:			flags to choose base and info files
 */
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;
	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)	(char *buf, struct rdt_resource *r,
				 struct rdt_domain *d);
	struct list_head	evt_list;
	int			num_rmid;
	unsigned int		mon_scale;
	unsigned long		fflags;
};

int parse_cbm(char *buf, struct rdt_resource *r, struct rdt_domain *d);
int parse_bw(char *buf, 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);

int __init rdtgroup_init(void);

enum {
	RDT_RESOURCE_L3,
	RDT_RESOURCE_L3DATA,
	RDT_RESOURCE_L3CODE,
	RDT_RESOURCE_L2,
	RDT_RESOURCE_MBA,

	/* Must be the last */
	RDT_NUM_RESOURCES,
};

#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)

#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)

#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)

/* CPUID.(EAX=10H, ECX=ResID=1).EAX */
union cpuid_0x10_1_eax {
	struct {
		unsigned int cbm_len:5;
	} split;
	unsigned int full;
};

/* CPUID.(EAX=10H, ECX=ResID=3).EAX */
union cpuid_0x10_3_eax {
	struct {
		unsigned int max_delay:12;
	} split;
	unsigned int full;
};

/* CPUID.(EAX=10H, ECX=ResID).EDX */
union cpuid_0x10_x_edx {
	struct {
		unsigned int cos_max:16;
	} split;
	unsigned int 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);
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);
struct rdt_domain *get_domain_from_cpu(int cpu, struct rdt_resource *r);
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);

#endif /* _ASM_X86_INTEL_RDT_H */
Commit	Line	Data
113c6097 FY	1	#ifndef _ASM_X86_INTEL_RDT_H
	2	#define _ASM_X86_INTEL_RDT_H
	3
5b825c3a	4	#include <linux/sched.h>
8ff42c02	5	#include <linux/kernfs.h>
5ff193fb FY	6	#include <linux/jump_label.h>
	7
	8	#define IA32_L3_QOS_CFG 0xc81
113c6097	9	#define IA32_L3_CBM_BASE 0xc90
c1c7c3f9	10	#define IA32_L2_CBM_BASE 0xd10
05b93417	11	#define IA32_MBA_THRTL_BASE 0xd50
113c6097	12
5ff193fb FY	13	#define L3_QOS_CDP_ENABLE 0x01ULL
5ff193fb FY	14
6a445edc VS	15	/*
	16	* Event IDs are used to program IA32_QM_EVTSEL before reading event
	17	* counter from IA32_QM_CTR
	18	*/
	19	#define QOS_L3_OCCUP_EVENT_ID 0x01
	20	#define QOS_L3_MBM_TOTAL_EVENT_ID 0x02
	21	#define QOS_L3_MBM_LOCAL_EVENT_ID 0x03
edf6fa1c VS	22	#define RMID_VAL_ERROR BIT_ULL(63)
edf6fa1c VS	23	#define RMID_VAL_UNAVAIL BIT_ULL(62)
6a445edc VS	24
	25	/**
	26	* struct mon_evt - Entry in the event list of a resource
	27	* @evtid: event id
	28	* @name: name of the event
	29	*/
	30	struct mon_evt {
	31	u32 evtid;
	32	char *name;
	33	struct list_head list;
	34	};
	35
d89b7379 VS	36	/**
	37	* struct mon_data_bits - Monitoring details for each event file
	38	* @rid: Resource id associated with the event file.
	39	* @evtid: Event id associated with the event file
	40	* @domid: The domain to which the event file belongs
	41	*/
	42	union mon_data_bits {
	43	void *priv;
	44	struct {
	45	unsigned int rid : 10;
	46	unsigned int evtid : 8;
	47	unsigned int domid : 14;
	48	} u;
	49	};
	50
	51	struct rmid_read {
	52	struct rdtgroup *rgrp;
	53	int evtid;
	54	u64 val;
	55	};
	56
6a445edc VS	57	extern unsigned int intel_cqm_threshold;
	58	extern bool rdt_alloc_capable;
	59	extern bool rdt_mon_capable;
	60	extern unsigned int rdt_mon_features;
c7d9aac6 VS	61
	62	enum rdt_group_type {
	63	RDTCTRL_GROUP = 0,
	64	RDTMON_GROUP,
	65	RDT_NUM_GROUP,
	66	};
	67
	68	/**
	69	* struct mongroup - store mon group's data in resctrl fs.
d89b7379	70	* @mon_data_kn kernlfs node for the mon_data directory
c7d9aac6 VS	71	* @parent: parent rdtgrp
	72	* @crdtgrp_list: child rdtgroup node list
	73	* @rmid: rmid for this rdtgroup
	74	*/
	75	struct mongroup {
d89b7379	76	struct kernfs_node *mon_data_kn;
c7d9aac6 VS	77	struct rdtgroup *parent;
	78	struct list_head crdtgrp_list;
	79	u32 rmid;
	80	};
	81
5ff193fb FY	82	/**
	83	* struct rdtgroup - store rdtgroup's data in resctrl file system.
	84	* @kn: kernfs node
	85	* @rdtgroup_list: linked list for all rdtgroups
	86	* @closid: closid for this rdtgroup
12e0110c	87	* @cpu_mask: CPUs assigned to this rdtgroup
60cf5e10 FY	88	* @flags: status bits
60cf5e10 FY	89	* @waitcount: how many cpus expect to find this
12e0110c	90	* group when they acquire rdtgroup_mutex
c7d9aac6 VS	91	* @type: indicates type of this rdtgroup - either
	92	* monitor only or ctrl_mon group
	93	* @mon: mongroup related data
5ff193fb FY	94	*/
	95	struct rdtgroup {
	96	struct kernfs_node *kn;
	97	struct list_head rdtgroup_list;
0734ded1	98	u32 closid;
12e0110c	99	struct cpumask cpu_mask;
60cf5e10 FY	100	int flags;
60cf5e10 FY	101	atomic_t waitcount;
c7d9aac6 VS	102	enum rdt_group_type type;
c7d9aac6 VS	103	struct mongroup mon;
5ff193fb FY	104	};
5ff193fb FY	105
60cf5e10 FY	106	/* rdtgroup.flags */
	107	#define RDT_DELETED 1
	108
4ffa3c97 JO	109	/* rftype.flags */
	110	#define RFTYPE_FLAGS_CPUS_LIST 1
	111
5dc1d5c6 TL	112	/*
	113	* Define the file type flags for base and info directories.
	114	*/
	115	#define RFTYPE_INFO BIT(0)
	116	#define RFTYPE_BASE BIT(1)
	117	#define RF_CTRLSHIFT 4
d4ab3320	118	#define RF_MONSHIFT 5
5dc1d5c6	119	#define RFTYPE_CTRL BIT(RF_CTRLSHIFT)
d4ab3320	120	#define RFTYPE_MON BIT(RF_MONSHIFT)
5dc1d5c6 TL	121	#define RFTYPE_RES_CACHE BIT(8)
	122	#define RFTYPE_RES_MB BIT(9)
	123	#define RF_CTRL_INFO (RFTYPE_INFO \| RFTYPE_CTRL)
d4ab3320	124	#define RF_MON_INFO (RFTYPE_INFO \| RFTYPE_MON)
5dc1d5c6 TL	125	#define RF_CTRL_BASE (RFTYPE_BASE \| RFTYPE_CTRL)
5dc1d5c6 TL	126
5ff193fb FY	127	/* List of all resource groups */
	128	extern struct list_head rdt_all_groups;
	129
de016df8 VS	130	extern int max_name_width, max_data_width;
de016df8 VS	131
5ff193fb FY	132	int __init rdtgroup_init(void);
5ff193fb FY	133
4e978d06 FY	134	/**
4e978d06 FY	135	* struct rftype - describe each file in the resctrl file system
17f8ba1d TG	136	* @name: File name
	137	* @mode: Access mode
	138	* @kf_ops: File operations
4ffa3c97	139	* @flags: File specific RFTYPE_FLAGS_* flags
5dc1d5c6	140	* @fflags: File specific RF_* or RFTYPE_* flags
17f8ba1d TG	141	* @seq_show: Show content of the file
17f8ba1d TG	142	* @write: Write to the file
4e978d06 FY	143	*/
	144	struct rftype {
	145	char *name;
	146	umode_t mode;
	147	struct kernfs_ops *kf_ops;
4ffa3c97	148	unsigned long flags;
5dc1d5c6	149	unsigned long fflags;
4e978d06 FY	150
	151	int (seq_show)(struct kernfs_open_file of,
	152	struct seq_file sf, void v);
	153	/*
	154	* write() is the generic write callback which maps directly to
	155	* kernfs write operation and overrides all other operations.
	156	* Maximum write size is determined by ->max_write_len.
	157	*/
	158	ssize_t (write)(struct kernfs_open_file of,
	159	char *buf, size_t nbytes, loff_t off);
	160	};
	161
0921c547 TG	162	/**
	163	* struct rdt_domain - group of cpus sharing an RDT resource
	164	* @list: all instances of this resource
	165	* @id: unique id for this instance
	166	* @cpu_mask: which cpus share this resource
edf6fa1c VS	167	* @rmid_busy_llc:
edf6fa1c VS	168	* bitmap of which limbo RMIDs are above threshold
0921c547 TG	169	* @ctrl_val: array of cache or mem ctrl values (indexed by CLOSID)
	170	* @new_ctrl: new ctrl value to be loaded
	171	* @have_new_ctrl: did user provide new_ctrl for this domain
	172	*/
	173	struct rdt_domain {
	174	struct list_head list;
	175	int id;
	176	struct cpumask cpu_mask;
edf6fa1c	177	unsigned long *rmid_busy_llc;
0921c547 TG	178	u32 *ctrl_val;
	179	u32 new_ctrl;
	180	bool have_new_ctrl;
	181	};
	182
	183	/**
	184	* struct msr_param - set a range of MSRs from a domain
	185	* @res: The resource to use
	186	* @low: Beginning index from base MSR
	187	* @high: End index
	188	*/
	189	struct msr_param {
	190	struct rdt_resource *res;
	191	int low;
	192	int high;
	193	};
	194
d3e11b4d TG	195	/**
	196	* struct rdt_cache - Cache allocation related data
	197	* @cbm_len: Length of the cache bit mask
	198	* @min_cbm_bits: Minimum number of consecutive bits to be set
	199	* @cbm_idx_mult: Multiplier of CBM index
	200	* @cbm_idx_offset: Offset of CBM index. CBM index is computed by:
	201	* closid * cbm_idx_multi + cbm_idx_offset
	202	* in a cache bit mask
	203	*/
	204	struct rdt_cache {
	205	unsigned int cbm_len;
	206	unsigned int min_cbm_bits;
	207	unsigned int cbm_idx_mult;
	208	unsigned int cbm_idx_offset;
	209	};
	210
05b93417 VS	211	/**
	212	* struct rdt_membw - Memory bandwidth allocation related data
	213	* @max_delay: Max throttle delay. Delay is the hardware
	214	* representation for memory bandwidth.
	215	* @min_bw: Minimum memory bandwidth percentage user can request
	216	* @bw_gran: Granularity at which the memory bandwidth is allocated
	217	* @delay_linear: True if memory B/W delay is in linear scale
	218	* @mb_map: Mapping of memory B/W percentage to memory B/W delay
	219	*/
	220	struct rdt_membw {
	221	u32 max_delay;
	222	u32 min_bw;
	223	u32 bw_gran;
	224	u32 delay_linear;
	225	u32 *mb_map;
	226	};
	227
6a445edc VS	228	static inline bool is_llc_occupancy_enabled(void)
	229	{
	230	return (rdt_mon_features & (1 << QOS_L3_OCCUP_EVENT_ID));
	231	}
	232
c1c7c3f9 FY	233	/**
c1c7c3f9 FY	234	* struct rdt_resource - attributes of an RDT resource
d89b7379	235	* @rid: The index of the resource
1b5c0b75	236	* @alloc_enabled: Is allocation enabled on this machine
6a445edc	237	* @mon_enabled: Is monitoring enabled for this feature
1b5c0b75	238	* @alloc_capable: Is allocation available on this machine
6a445edc	239	* @mon_capable: Is monitor feature available on this machine
d3e11b4d TG	240	* @name: Name to use in "schemata" file
	241	* @num_closid: Number of CLOSIDs available
	242	* @cache_level: Which cache level defines scope of this resource
	243	* @default_ctrl: Specifies default cache cbm or memory B/W percent.
	244	* @msr_base: Base MSR address for CBMs
0921c547	245	* @msr_update: Function pointer to update QOS MSRs
d3e11b4d TG	246	* @data_width: Character width of data when displaying
	247	* @domains: All domains for this resource
	248	* @cache: Cache allocation related data
c6ea67de VS	249	* @format_str: Per resource format string to show domain value
c6ea67de VS	250	* @parse_ctrlval: Per resource function pointer to parse control values
6a445edc VS	251	* @evt_list: List of monitoring events
	252	* @num_rmid: Number of RMIDs available
	253	* @mon_scale: cqm counter * mon_scale = occupancy in bytes
5dc1d5c6	254	* @fflags: flags to choose base and info files
c1c7c3f9 FY	255	*/
c1c7c3f9 FY	256	struct rdt_resource {
d89b7379	257	int rid;
1b5c0b75	258	bool alloc_enabled;
6a445edc	259	bool mon_enabled;
1b5c0b75	260	bool alloc_capable;
6a445edc	261	bool mon_capable;
c1c7c3f9 FY	262	char *name;
c1c7c3f9 FY	263	int num_closid;
d3e11b4d	264	int cache_level;
2545e9f5	265	u32 default_ctrl;
d3e11b4d	266	unsigned int msr_base;
0921c547 TG	267	void (msr_update) (struct rdt_domain d, struct msr_param *m,
0921c547 TG	268	struct rdt_resource *r);
de016df8	269	int data_width;
c1c7c3f9	270	struct list_head domains;
a83827d0 TG	271	struct rdt_cache cache;
a83827d0 TG	272	struct rdt_membw membw;
c6ea67de VS	273	const char *format_str;
	274	int (parse_ctrlval) (char buf, struct rdt_resource *r,
	275	struct rdt_domain *d);
6a445edc VS	276	struct list_head evt_list;
	277	int num_rmid;
	278	unsigned int mon_scale;
5dc1d5c6	279	unsigned long fflags;
c1c7c3f9 FY	280	};
c1c7c3f9 FY	281
c6ea67de	282	int parse_cbm(char buf, struct rdt_resource r, struct rdt_domain *d);
64e8ed3d	283	int parse_bw(char buf, struct rdt_resource r, struct rdt_domain *d);
6a507a6a	284
2264d9c7 TL	285	extern struct mutex rdtgroup_mutex;
2264d9c7 TL	286
c1c7c3f9	287	extern struct rdt_resource rdt_resources_all[];
5ff193fb	288	extern struct rdtgroup rdtgroup_default;
1b5c0b75	289	DECLARE_STATIC_KEY_FALSE(rdt_alloc_enable_key);
5ff193fb FY	290
5ff193fb FY	291	int __init rdtgroup_init(void);
c1c7c3f9 FY	292
	293	enum {
	294	RDT_RESOURCE_L3,
	295	RDT_RESOURCE_L3DATA,
	296	RDT_RESOURCE_L3CODE,
	297	RDT_RESOURCE_L2,
05b93417	298	RDT_RESOURCE_MBA,
c1c7c3f9 FY	299
	300	/* Must be the last */
	301	RDT_NUM_RESOURCES,
	302	};
	303
895c663e VS	304	#define for_each_capable_rdt_resource(r) \
	305	for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
	306	r++) \
	307	if (r->alloc_capable \|\| r->mon_capable)
	308
1b5c0b75	309	#define for_each_alloc_capable_rdt_resource(r) \
c1c7c3f9	310	for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
17f8ba1d	311	r++) \
1b5c0b75	312	if (r->alloc_capable)
c1c7c3f9	313
6a445edc VS	314	#define for_each_mon_capable_rdt_resource(r) \
	315	for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
	316	r++) \
	317	if (r->mon_capable)
	318
1b5c0b75	319	#define for_each_alloc_enabled_rdt_resource(r) \
2264d9c7 TL	320	for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
2264d9c7 TL	321	r++) \
1b5c0b75	322	if (r->alloc_enabled)
2264d9c7	323
d4ab3320 VS	324	#define for_each_mon_enabled_rdt_resource(r) \
	325	for (r = rdt_resources_all; r < rdt_resources_all + RDT_NUM_RESOURCES;\
	326	r++) \
	327	if (r->mon_enabled)
	328
c1c7c3f9 FY	329	/* CPUID.(EAX=10H, ECX=ResID=1).EAX */
	330	union cpuid_0x10_1_eax {
	331	struct {
	332	unsigned int cbm_len:5;
	333	} split;
	334	unsigned int full;
	335	};
	336
ab66a33b VS	337	/* CPUID.(EAX=10H, ECX=ResID=3).EAX */
	338	union cpuid_0x10_3_eax {
	339	struct {
	340	unsigned int max_delay:12;
	341	} split;
	342	unsigned int full;
	343	};
	344
2545e9f5 VS	345	/* CPUID.(EAX=10H, ECX=ResID).EDX */
2545e9f5 VS	346	union cpuid_0x10_x_edx {
c1c7c3f9 FY	347	struct {
	348	unsigned int cos_max:16;
	349	} split;
	350	unsigned int full;
	351	};
2264d9c7	352
2545e9f5	353	void rdt_ctrl_update(void *arg);
60cf5e10 FY	354	struct rdtgroup rdtgroup_kn_lock_live(struct kernfs_node kn);
60cf5e10 FY	355	void rdtgroup_kn_unlock(struct kernfs_node *kn);
d89b7379 VS	356	struct rdt_domain rdt_find_domain(struct rdt_resource r, int id,
d89b7379 VS	357	struct list_head **pos);
60ec2440 TL	358	ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
	359	char *buf, size_t nbytes, loff_t off);
	360	int rdtgroup_schemata_show(struct kernfs_open_file *of,
	361	struct seq_file s, void v);
edf6fa1c	362	struct rdt_domain get_domain_from_cpu(int cpu, struct rdt_resource r);
c7d9aac6 VS	363	int alloc_rmid(void);
c7d9aac6 VS	364	void free_rmid(u32 rmid);
6a445edc	365	int rdt_get_mon_l3_config(struct rdt_resource *r);
d89b7379 VS	366	void mon_event_count(void *info);
d89b7379 VS	367	int rdtgroup_mondata_show(struct seq_file m, void arg);
895c663e VS	368	void rmdir_mondata_subdir_allrdtgrp(struct rdt_resource *r,
	369	unsigned int dom_id);
	370	void mkdir_mondata_subdir_allrdtgrp(struct rdt_resource *r,
	371	struct rdt_domain *d);
4f341a5e	372
113c6097	373	#endif /* _ASM_X86_INTEL_RDT_H */