arch/x86/events/intel/uncore_discovery.h

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