uncore_discovery.h

  1/* SPDX-License-Identifier: GPL-2.0-only */
  2
  3/* Store the full address of the global discovery table */
  4#define UNCORE_DISCOVERY_MSR			0x201e
  5
  6/* Generic device ID of a discovery table device */
  7#define UNCORE_DISCOVERY_TABLE_DEVICE		0x09a7
  8/* Capability ID for a discovery table device */
  9#define UNCORE_EXT_CAP_ID_DISCOVERY		0x23
 10/* First DVSEC offset */
 11#define UNCORE_DISCOVERY_DVSEC_OFFSET		0x8
 12/* Mask of the supported discovery entry type */
 13#define UNCORE_DISCOVERY_DVSEC_ID_MASK		0xffff
 14/* PMON discovery entry type ID */
 15#define UNCORE_DISCOVERY_DVSEC_ID_PMON		0x1
 16/* Second DVSEC offset */
 17#define UNCORE_DISCOVERY_DVSEC2_OFFSET		0xc
 18/* Mask of the discovery table BAR offset */
 19#define UNCORE_DISCOVERY_DVSEC2_BIR_MASK	0x7
 20/* Discovery table BAR base offset */
 21#define UNCORE_DISCOVERY_BIR_BASE		0x10
 22/* Discovery table BAR step */
 23#define UNCORE_DISCOVERY_BIR_STEP		0x4
 24/* Global discovery table size */
 25#define UNCORE_DISCOVERY_GLOBAL_MAP_SIZE	0x20
 26
 27#define UNCORE_DISCOVERY_PCI_DOMAIN_OFFSET	28
 28#define UNCORE_DISCOVERY_PCI_DOMAIN(data)			\
 29		((data >> UNCORE_DISCOVERY_PCI_DOMAIN_OFFSET) & 0x7)
 30#define UNCORE_DISCOVERY_PCI_BUS_OFFSET		20
 31#define UNCORE_DISCOVERY_PCI_BUS(data)				\
 32		((data >> UNCORE_DISCOVERY_PCI_BUS_OFFSET) & 0xff)
 33#define UNCORE_DISCOVERY_PCI_DEVFN_OFFSET	12
 34#define UNCORE_DISCOVERY_PCI_DEVFN(data)			\
 35		((data >> UNCORE_DISCOVERY_PCI_DEVFN_OFFSET) & 0xff)
 36#define UNCORE_DISCOVERY_PCI_BOX_CTRL(data)	(data & 0xfff)
 37
 38
 39#define uncore_discovery_invalid_unit(unit)			\
 40	(!unit.table1 || !unit.ctl || \
 41	 unit.table1 == -1ULL || unit.ctl == -1ULL ||	\
 42	 unit.table3 == -1ULL)
 43
 44#define GENERIC_PMON_CTL_EV_SEL_MASK	0x000000ff
 45#define GENERIC_PMON_CTL_UMASK_MASK	0x0000ff00
 46#define GENERIC_PMON_CTL_EDGE_DET	(1 << 18)
 47#define GENERIC_PMON_CTL_INVERT		(1 << 23)
 48#define GENERIC_PMON_CTL_TRESH_MASK	0xff000000
 49#define GENERIC_PMON_RAW_EVENT_MASK	(GENERIC_PMON_CTL_EV_SEL_MASK | \
 50					 GENERIC_PMON_CTL_UMASK_MASK | \
 51					 GENERIC_PMON_CTL_EDGE_DET | \
 52					 GENERIC_PMON_CTL_INVERT | \
 53					 GENERIC_PMON_CTL_TRESH_MASK)
 54
 55#define GENERIC_PMON_BOX_CTL_FRZ	(1 << 0)
 56#define GENERIC_PMON_BOX_CTL_RST_CTRL	(1 << 8)
 57#define GENERIC_PMON_BOX_CTL_RST_CTRS	(1 << 9)
 58#define GENERIC_PMON_BOX_CTL_INT	(GENERIC_PMON_BOX_CTL_RST_CTRL | \
 59					 GENERIC_PMON_BOX_CTL_RST_CTRS)
 60
 61enum uncore_access_type {
 62	UNCORE_ACCESS_MSR	= 0,
 63	UNCORE_ACCESS_MMIO,
 64	UNCORE_ACCESS_PCI,
 65
 66	UNCORE_ACCESS_MAX,
 67};
 68
 69struct uncore_global_discovery {
 70	union {
 71		u64	table1;
 72		struct {
 73			u64	type : 8,
 74				stride : 8,
 75				max_units : 10,
 76				__reserved_1 : 36,
 77				access_type : 2;
 78		};
 79	};
 80
 81	u64	ctl;		/* Global Control Address */
 82
 83	union {
 84		u64	table3;
 85		struct {
 86			u64	status_offset : 8,
 87				num_status : 16,
 88				__reserved_2 : 40;
 89		};
 90	};
 91};
 92
 93struct uncore_unit_discovery {
 94	union {
 95		u64	table1;
 96		struct {
 97			u64	num_regs : 8,
 98				ctl_offset : 8,
 99				bit_width : 8,
100				ctr_offset : 8,
101				status_offset : 8,
102				__reserved_1 : 22,
103				access_type : 2;
104			};
105		};
106
107	u64	ctl;		/* Unit Control Address */
108
109	union {
110		u64	table3;
111		struct {
112			u64	box_type : 16,
113				box_id : 16,
114				__reserved_2 : 32;
115		};
116	};
117};
118
119struct intel_uncore_discovery_unit {
120	struct rb_node	node;
121	unsigned int	pmu_idx;	/* The idx of the corresponding PMU */
122	unsigned int	id;		/* Unit ID */
123	unsigned int	die;		/* Die ID */
124	u64		addr;		/* Unit Control Address */
125};
126
127struct intel_uncore_discovery_type {
128	struct rb_node	node;
129	enum uncore_access_type	access_type;
130	struct rb_root	units;		/* Unit ctrl addr for all units */
131	u16		type;		/* Type ID of the uncore block */
132	u8		num_counters;
133	u8		counter_width;
134	u8		ctl_offset;	/* Counter Control 0 offset */
135	u8		ctr_offset;	/* Counter 0 offset */
136	u16		num_units;	/* number of units */
137};
138
139bool intel_uncore_has_discovery_tables(int *ignore);
140void intel_uncore_clear_discovery_tables(void);
141void intel_uncore_generic_uncore_cpu_init(void);
142int intel_uncore_generic_uncore_pci_init(void);
143void intel_uncore_generic_uncore_mmio_init(void);
144
145void intel_generic_uncore_msr_init_box(struct intel_uncore_box *box);
146void intel_generic_uncore_msr_disable_box(struct intel_uncore_box *box);
147void intel_generic_uncore_msr_enable_box(struct intel_uncore_box *box);
148
149void intel_generic_uncore_mmio_init_box(struct intel_uncore_box *box);
150void intel_generic_uncore_mmio_disable_box(struct intel_uncore_box *box);
151void intel_generic_uncore_mmio_enable_box(struct intel_uncore_box *box);
152void intel_generic_uncore_mmio_disable_event(struct intel_uncore_box *box,
153					     struct perf_event *event);
154void intel_generic_uncore_mmio_enable_event(struct intel_uncore_box *box,
155					    struct perf_event *event);
156
157void intel_generic_uncore_pci_init_box(struct intel_uncore_box *box);
158void intel_generic_uncore_pci_disable_box(struct intel_uncore_box *box);
159void intel_generic_uncore_pci_enable_box(struct intel_uncore_box *box);
160void intel_generic_uncore_pci_disable_event(struct intel_uncore_box *box,
161					    struct perf_event *event);
162u64 intel_generic_uncore_pci_read_counter(struct intel_uncore_box *box,
163					  struct perf_event *event);
164
165struct intel_uncore_type **
166intel_uncore_generic_init_uncores(enum uncore_access_type type_id, int num_extra);
167
168int intel_uncore_find_discovery_unit_id(struct rb_root *units, int die,
169					unsigned int pmu_idx);
170bool intel_generic_uncore_assign_hw_event(struct perf_event *event,
171					  struct intel_uncore_box *box);
172void uncore_find_add_unit(struct intel_uncore_discovery_unit *node,
173			  struct rb_root *root, u16 *num_units);
174struct intel_uncore_type **
175uncore_get_uncores(enum uncore_access_type type_id, int num_extra,
176		   struct intel_uncore_type **extra, int max_num_types,
177		   struct intel_uncore_type **uncores);