events/intel/uncore_discovery.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002
0003 /* Generic device ID of a discovery table device */
0004 #define UNCORE_DISCOVERY_TABLE_DEVICE       0x09a7
0005 /* Capability ID for a discovery table device */
0006 #define UNCORE_EXT_CAP_ID_DISCOVERY     0x23
0007 /* First DVSEC offset */
0008 #define UNCORE_DISCOVERY_DVSEC_OFFSET       0x8
0009 /* Mask of the supported discovery entry type */
0010 #define UNCORE_DISCOVERY_DVSEC_ID_MASK      0xffff
0011 /* PMON discovery entry type ID */
0012 #define UNCORE_DISCOVERY_DVSEC_ID_PMON      0x1
0013 /* Second DVSEC offset */
0014 #define UNCORE_DISCOVERY_DVSEC2_OFFSET      0xc
0015 /* Mask of the discovery table BAR offset */
0016 #define UNCORE_DISCOVERY_DVSEC2_BIR_MASK    0x7
0017 /* Discovery table BAR base offset */
0018 #define UNCORE_DISCOVERY_BIR_BASE       0x10
0019 /* Discovery table BAR step */
0020 #define UNCORE_DISCOVERY_BIR_STEP       0x4
0021 /* Global discovery table size */
0022 #define UNCORE_DISCOVERY_GLOBAL_MAP_SIZE    0x20
0023
0024 #define UNCORE_DISCOVERY_PCI_DOMAIN(data)   ((data >> 28) & 0x7)
0025 #define UNCORE_DISCOVERY_PCI_BUS(data)      ((data >> 20) & 0xff)
0026 #define UNCORE_DISCOVERY_PCI_DEVFN(data)    ((data >> 12) & 0xff)
0027 #define UNCORE_DISCOVERY_PCI_BOX_CTRL(data) (data & 0xfff)
0028
0029
0030 #define uncore_discovery_invalid_unit(unit)         \
0031     (!unit.table1 || !unit.ctl || \
0032      unit.table1 == -1ULL || unit.ctl == -1ULL ||   \
0033      unit.table3 == -1ULL)
0034
0035 #define GENERIC_PMON_CTL_EV_SEL_MASK    0x000000ff
0036 #define GENERIC_PMON_CTL_UMASK_MASK 0x0000ff00
0037 #define GENERIC_PMON_CTL_EDGE_DET   (1 << 18)
0038 #define GENERIC_PMON_CTL_INVERT     (1 << 23)
0039 #define GENERIC_PMON_CTL_TRESH_MASK 0xff000000
0040 #define GENERIC_PMON_RAW_EVENT_MASK (GENERIC_PMON_CTL_EV_SEL_MASK | \
0041                      GENERIC_PMON_CTL_UMASK_MASK | \
0042                      GENERIC_PMON_CTL_EDGE_DET | \
0043                      GENERIC_PMON_CTL_INVERT | \
0044                      GENERIC_PMON_CTL_TRESH_MASK)
0045
0046 #define GENERIC_PMON_BOX_CTL_FRZ    (1 << 0)
0047 #define GENERIC_PMON_BOX_CTL_RST_CTRL   (1 << 8)
0048 #define GENERIC_PMON_BOX_CTL_RST_CTRS   (1 << 9)
0049 #define GENERIC_PMON_BOX_CTL_INT    (GENERIC_PMON_BOX_CTL_RST_CTRL | \
0050                      GENERIC_PMON_BOX_CTL_RST_CTRS)
0051
0052 enum uncore_access_type {
0053     UNCORE_ACCESS_MSR   = 0,
0054     UNCORE_ACCESS_MMIO,
0055     UNCORE_ACCESS_PCI,
0056
0057     UNCORE_ACCESS_MAX,
0058 };
0059
0060 struct uncore_global_discovery {
0061     union {
0062         u64 table1;
0063         struct {
0064             u64 type : 8,
0065                 stride : 8,
0066                 max_units : 10,
0067                 __reserved_1 : 36,
0068                 access_type : 2;
0069         };
0070     };
0071
0072     u64 ctl;        /* Global Control Address */
0073
0074     union {
0075         u64 table3;
0076         struct {
0077             u64 status_offset : 8,
0078                 num_status : 16,
0079                 __reserved_2 : 40;
0080         };
0081     };
0082 };
0083
0084 struct uncore_unit_discovery {
0085     union {
0086         u64 table1;
0087         struct {
0088             u64 num_regs : 8,
0089                 ctl_offset : 8,
0090                 bit_width : 8,
0091                 ctr_offset : 8,
0092                 status_offset : 8,
0093                 __reserved_1 : 22,
0094                 access_type : 2;
0095             };
0096         };
0097
0098     u64 ctl;        /* Unit Control Address */
0099
0100     union {
0101         u64 table3;
0102         struct {
0103             u64 box_type : 16,
0104                 box_id : 16,
0105                 __reserved_2 : 32;
0106         };
0107     };
0108 };
0109
0110 struct intel_uncore_discovery_type {
0111     struct rb_node  node;
0112     enum uncore_access_type access_type;
0113     u64     box_ctrl;   /* Unit ctrl addr of the first box */
0114     u64     *box_ctrl_die;  /* Unit ctrl addr of the first box of each die */
0115     u16     type;       /* Type ID of the uncore block */
0116     u8      num_counters;
0117     u8      counter_width;
0118     u8      ctl_offset; /* Counter Control 0 offset */
0119     u8      ctr_offset; /* Counter 0 offset */
0120     u16     num_boxes;  /* number of boxes for the uncore block */
0121     unsigned int    *ids;       /* Box IDs */
0122     unsigned int    *box_offset;    /* Box offset */
0123 };
0124
0125 bool intel_uncore_has_discovery_tables(void);
0126 void intel_uncore_clear_discovery_tables(void);
0127 void intel_uncore_generic_uncore_cpu_init(void);
0128 int intel_uncore_generic_uncore_pci_init(void);
0129 void intel_uncore_generic_uncore_mmio_init(void);
0130
0131 void intel_generic_uncore_msr_init_box(struct intel_uncore_box *box);
0132 void intel_generic_uncore_msr_disable_box(struct intel_uncore_box *box);
0133 void intel_generic_uncore_msr_enable_box(struct intel_uncore_box *box);
0134
0135 void intel_generic_uncore_mmio_init_box(struct intel_uncore_box *box);
0136 void intel_generic_uncore_mmio_disable_box(struct intel_uncore_box *box);
0137 void intel_generic_uncore_mmio_enable_box(struct intel_uncore_box *box);
0138 void intel_generic_uncore_mmio_disable_event(struct intel_uncore_box *box,
0139                          struct perf_event *event);
0140 void intel_generic_uncore_mmio_enable_event(struct intel_uncore_box *box,
0141                         struct perf_event *event);
0142
0143 void intel_generic_uncore_pci_init_box(struct intel_uncore_box *box);
0144 void intel_generic_uncore_pci_disable_box(struct intel_uncore_box *box);
0145 void intel_generic_uncore_pci_enable_box(struct intel_uncore_box *box);
0146 void intel_generic_uncore_pci_disable_event(struct intel_uncore_box *box,
0147                         struct perf_event *event);
0148 u64 intel_generic_uncore_pci_read_counter(struct intel_uncore_box *box,
0149                       struct perf_event *event);
0150
0151 struct intel_uncore_type **
0152 intel_uncore_generic_init_uncores(enum uncore_access_type type_id, int num_extra);