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         uintptr_t addr;
  89         unsigned int ioapic_id;
  90         unsigned int gsi_base;
  91 };
  92
  93 struct cpu_cluster_path {
  94         unsigned int cluster;
  95 };
  96
  97 struct cpu_path {
  98         unsigned int id;
  99 };
 100
 101 struct cpu_bus_path {
 102         unsigned int id;
 103 };
 104
 105 struct generic_path {
 106         unsigned int id;
 107         unsigned int subid;
 108 };
 109
 110 struct usb_path {
 111         unsigned int port_type;
 112         unsigned int port_id;
 113 };
 114
 115 struct mmio_path {
 116         uintptr_t addr;
 117 };
 118
 119 struct gpio_path {
 120         unsigned int id;
 121 };
 122
 123 struct mdio_path {
 124         unsigned int addr;
 125 };
 126
 127 struct gicc_v3_path {
 128         unsigned long long mpidr;
 129         unsigned int vgic_mi;
 130         unsigned int pi_gsiv;
 131 };
 132
 133 struct device_path {
 134         enum device_path_type type;
 135         union {
 136                 struct pci_path         pci;
 137                 struct pnp_path         pnp;
 138                 struct i2c_path         i2c;
 139                 struct apic_path        apic;
 140                 struct ioapic_path      ioapic;
 141                 struct domain_path      domain;
 142                 struct cpu_cluster_path cpu_cluster;
 143                 struct cpu_path         cpu;
 144                 struct cpu_bus_path     cpu_bus;
 145                 struct generic_path     generic;
 146                 struct spi_path         spi;
 147                 struct usb_path         usb;
 148                 struct mmio_path        mmio;
 149                 struct gpio_path        gpio;
 150                 struct mdio_path        mdio;
 151                 struct gicc_v3_path     gicc_v3;
 152         };
 153 };
 154
 155 #define DEVICE_PATH_MAX 40
 156 #define BUS_PATH_MAX (DEVICE_PATH_MAX+10)
 157
 158 extern const char *dev_path_name(enum device_path_type type);
 159
 160 #endif /* DEVICE_PATH_H */