src/include/device/path.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #ifndef DEVICE_PATH_H
   4 #define DEVICE_PATH_H
   5
   6 #include <stdint.h>
   7
   8 enum device_path_type {
   9         DEVICE_PATH_NONE = 0,
  10         DEVICE_PATH_ROOT,
  11         DEVICE_PATH_PCI,
  12         DEVICE_PATH_PNP,
  13         DEVICE_PATH_I2C,
  14         DEVICE_PATH_APIC,
  15         DEVICE_PATH_DOMAIN,
  16         DEVICE_PATH_CPU_CLUSTER,
  17         DEVICE_PATH_CPU,
  18         DEVICE_PATH_CPU_BUS,
  19         DEVICE_PATH_IOAPIC,
  20         DEVICE_PATH_GENERIC,
  21         DEVICE_PATH_SPI,
  22         DEVICE_PATH_USB,
  23         DEVICE_PATH_MMIO,
  24         DEVICE_PATH_GPIO,
  25         DEVICE_PATH_MDIO,
  26         DEVICE_PATH_GICC_V3,
  27
  28         /*
  29          * When adding path types to this table, please also update the
  30          * DEVICE_PATH_NAMES macro below.
  31          */
  32 };
  33
  34 #define DEVICE_PATH_NAMES {                     \
  35                 "DEVICE_PATH_NONE",             \
  36                 "DEVICE_PATH_ROOT",             \
  37                 "DEVICE_PATH_PCI",              \
  38                 "DEVICE_PATH_PNP",              \
  39                 "DEVICE_PATH_I2C",              \
  40                 "DEVICE_PATH_APIC",             \
  41                 "DEVICE_PATH_DOMAIN",           \
  42                 "DEVICE_PATH_CPU_CLUSTER",      \
  43                 "DEVICE_PATH_CPU",              \
  44                 "DEVICE_PATH_CPU_BUS",          \
  45                 "DEVICE_PATH_IOAPIC",           \
  46                 "DEVICE_PATH_GENERIC",          \
  47                 "DEVICE_PATH_SPI",              \
  48                 "DEVICE_PATH_USB",              \
  49                 "DEVICE_PATH_MMIO",             \
  50                 "DEVICE_PATH_GPIO",             \
  51                 "DEVICE_PATH_MDIO",             \
  52                 "DEVICE_PATH_GICC_V3",          \
  53 }
  54
  55 struct domain_path {
  56         unsigned int domain_id;
  57 };
  58
  59 struct pci_path {
  60         unsigned int devfn;
  61 };
  62
  63 struct pnp_path {
  64         unsigned int port;
  65         unsigned int device;
  66 };
  67
  68 struct i2c_path {
  69         unsigned int device;
  70         unsigned int mode_10bit;
  71 };
  72
  73 struct spi_path {
  74         unsigned int cs;
  75 };
  76
  77 struct apic_path {
  78         unsigned int initial_lapicid;
  79         unsigned int apic_id;
  80         unsigned int package_id;
  81         unsigned int node_id;
  82         unsigned int core_id;
  83         unsigned int thread_id;
  84         unsigned char core_type;
  85 };
  86
  87 struct ioapic_path {
  88         unsigned int ioapic_id;
  89 };
  90
  91 struct cpu_cluster_path {
  92         unsigned int cluster;
  93 };
  94
  95 struct cpu_path {
  96         unsigned int id;
  97 };
  98
  99 struct cpu_bus_path {
 100         unsigned int id;
 101 };
 102
 103 struct generic_path {
 104         unsigned int id;
 105         unsigned int subid;
 106 };
 107
 108 struct usb_path {
 109         unsigned int port_type;
 110         unsigned int port_id;
 111 };
 112
 113 struct mmio_path {
 114         uintptr_t addr;
 115 };
 116
 117 struct gpio_path {
 118         unsigned int id;
 119 };
 120
 121 struct mdio_path {
 122         unsigned int addr;
 123 };
 124
 125 struct gicc_v3_path {
 126         unsigned long long mpidr;
 127         unsigned int vgic_mi;
 128         unsigned int pi_gsiv;
 129 };
 130
 131 struct device_path {
 132         enum device_path_type type;
 133         union {
 134                 struct pci_path         pci;
 135                 struct pnp_path         pnp;
 136                 struct i2c_path         i2c;
 137                 struct apic_path        apic;
 138                 struct ioapic_path      ioapic;
 139                 struct domain_path      domain;
 140                 struct cpu_cluster_path cpu_cluster;
 141                 struct cpu_path         cpu;
 142                 struct cpu_bus_path     cpu_bus;
 143                 struct generic_path     generic;
 144                 struct spi_path         spi;
 145                 struct usb_path         usb;
 146                 struct mmio_path        mmio;
 147                 struct gpio_path        gpio;
 148                 struct mdio_path        mdio;
 149                 struct gicc_v3_path     gicc_v3;
 150         };
 151 };
 152
 153 #define DEVICE_PATH_MAX 40
 154 #define BUS_PATH_MAX (DEVICE_PATH_MAX+10)
 155
 156 extern const char *dev_path_name(enum device_path_type type);
 157
 158 #endif /* DEVICE_PATH_H */