hw/mips/loongson3_bootp.h

   1 /*
   2  * LEFI (a UEFI-like interface for BIOS-Kernel boot parameters) data structures
   3  * defined at arch/mips/include/asm/mach-loongson64/boot_param.h in Linux kernel
   4  *
   5  * Copyright (c) 2017-2020 Huacai Chen (chenhc@lemote.com)
   6  * Copyright (c) 2017-2020 Jiaxun Yang <jiaxun.yang@flygoat.com>
   7  *
   8  * This program is free software: you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation, either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program. If not, see <https://www.gnu.org/licenses/>.
  20  */
  21
  22 #ifndef HW_MIPS_LOONGSON3_BOOTP_H
  23 #define HW_MIPS_LOONGSON3_BOOTP_H
  24
  25 struct efi_memory_map_loongson {
  26     uint16_t vers;               /* version of efi_memory_map */
  27     uint32_t nr_map;             /* number of memory_maps */
  28     uint32_t mem_freq;           /* memory frequence */
  29     struct mem_map {
  30         uint32_t node_id;        /* node_id which memory attached to */
  31         uint32_t mem_type;       /* system memory, pci memory, pci io, etc. */
  32         uint64_t mem_start;      /* memory map start address */
  33         uint32_t mem_size;       /* each memory_map size, not the total size */
  34     } map[128];
  35 } QEMU_PACKED;
  36
  37 enum loongson_cpu_type {
  38     Legacy_2E = 0x0,
  39     Legacy_2F = 0x1,
  40     Legacy_3A = 0x2,
  41     Legacy_3B = 0x3,
  42     Legacy_1A = 0x4,
  43     Legacy_1B = 0x5,
  44     Legacy_2G = 0x6,
  45     Legacy_2H = 0x7,
  46     Loongson_1A = 0x100,
  47     Loongson_1B = 0x101,
  48     Loongson_2E = 0x200,
  49     Loongson_2F = 0x201,
  50     Loongson_2G = 0x202,
  51     Loongson_2H = 0x203,
  52     Loongson_3A = 0x300,
  53     Loongson_3B = 0x301
  54 };
  55
  56 /*
  57  * Capability and feature descriptor structure for MIPS CPU
  58  */
  59 struct efi_cpuinfo_loongson {
  60     uint16_t vers;               /* version of efi_cpuinfo_loongson */
  61     uint32_t processor_id;       /* PRID, e.g. 6305, 6306 */
  62     uint32_t cputype;            /* Loongson_3A/3B, etc. */
  63     uint32_t total_node;         /* num of total numa nodes */
  64     uint16_t cpu_startup_core_id;   /* Boot core id */
  65     uint16_t reserved_cores_mask;
  66     uint32_t cpu_clock_freq;     /* cpu_clock */
  67     uint32_t nr_cpus;
  68     char cpuname[64];
  69 } QEMU_PACKED;
  70
  71 #define MAX_UARTS 64
  72 struct uart_device {
  73     uint32_t iotype;
  74     uint32_t uartclk;
  75     uint32_t int_offset;
  76     uint64_t uart_base;
  77 } QEMU_PACKED;
  78
  79 #define MAX_SENSORS 64
  80 #define SENSOR_TEMPER  0x00000001
  81 #define SENSOR_VOLTAGE 0x00000002
  82 #define SENSOR_FAN     0x00000004
  83 struct sensor_device {
  84     char name[32];  /* a formal name */
  85     char label[64]; /* a flexible description */
  86     uint32_t type;       /* SENSOR_* */
  87     uint32_t id;         /* instance id of a sensor-class */
  88     uint32_t fan_policy; /* step speed or constant speed */
  89     uint32_t fan_percent;/* only for constant speed policy */
  90     uint64_t base_addr;  /* base address of device registers */
  91 } QEMU_PACKED;
  92
  93 struct system_loongson {
  94     uint16_t vers;               /* version of system_loongson */
  95     uint32_t ccnuma_smp;         /* 0: no numa; 1: has numa */
  96     uint32_t sing_double_channel;/* 1: single; 2: double */
  97     uint32_t nr_uarts;
  98     struct uart_device uarts[MAX_UARTS];
  99     uint32_t nr_sensors;
 100     struct sensor_device sensors[MAX_SENSORS];
 101     char has_ec;
 102     char ec_name[32];
 103     uint64_t ec_base_addr;
 104     char has_tcm;
 105     char tcm_name[32];
 106     uint64_t tcm_base_addr;
 107     uint64_t workarounds;
 108     uint64_t of_dtb_addr; /* NULL if not support */
 109 } QEMU_PACKED;
 110
 111 struct irq_source_routing_table {
 112     uint16_t vers;
 113     uint16_t size;
 114     uint16_t rtr_bus;
 115     uint16_t rtr_devfn;
 116     uint32_t vendor;
 117     uint32_t device;
 118     uint32_t PIC_type;           /* conform use HT or PCI to route to CPU-PIC */
 119     uint64_t ht_int_bit;         /* 3A: 1<<24; 3B: 1<<16 */
 120     uint64_t ht_enable;          /* irqs used in this PIC */
 121     uint32_t node_id;            /* node id: 0x0-0; 0x1-1; 0x10-2; 0x11-3 */
 122     uint64_t pci_mem_start_addr;
 123     uint64_t pci_mem_end_addr;
 124     uint64_t pci_io_start_addr;
 125     uint64_t pci_io_end_addr;
 126     uint64_t pci_config_addr;
 127     uint16_t dma_mask_bits;
 128     uint16_t dma_noncoherent;
 129 } QEMU_PACKED;
 130
 131 struct interface_info {
 132     uint16_t vers;               /* version of the specificition */
 133     uint16_t size;
 134     uint8_t  flag;
 135     char description[64];
 136 } QEMU_PACKED;
 137
 138 #define MAX_RESOURCE_NUMBER 128
 139 struct resource_loongson {
 140     uint64_t start;              /* resource start address */
 141     uint64_t end;                /* resource end address */
 142     char name[64];
 143     uint32_t flags;
 144 };
 145
 146 struct archdev_data {};          /* arch specific additions */
 147
 148 struct board_devices {
 149     char name[64];               /* hold the device name */
 150     uint32_t num_resources;      /* number of device_resource */
 151     /* for each device's resource */
 152     struct resource_loongson resource[MAX_RESOURCE_NUMBER];
 153     /* arch specific additions */
 154     struct archdev_data archdata;
 155 };
 156
 157 struct loongson_special_attribute {
 158     uint16_t vers;               /* version of this special */
 159     char special_name[64];       /* special_atribute_name */
 160     uint32_t loongson_special_type; /* type of special device */
 161     /* for each device's resource */
 162     struct resource_loongson resource[MAX_RESOURCE_NUMBER];
 163 };
 164
 165 struct loongson_params {
 166     uint64_t memory_offset;      /* efi_memory_map_loongson struct offset */
 167     uint64_t cpu_offset;         /* efi_cpuinfo_loongson struct offset */
 168     uint64_t system_offset;      /* system_loongson struct offset */
 169     uint64_t irq_offset;         /* irq_source_routing_table struct offset */
 170     uint64_t interface_offset;   /* interface_info struct offset */
 171     uint64_t special_offset;     /* loongson_special_attribute struct offset */
 172     uint64_t boarddev_table_offset;  /* board_devices offset */
 173 };
 174
 175 struct smbios_tables {
 176     uint16_t vers;               /* version of smbios */
 177     uint64_t vga_bios;           /* vga_bios address */
 178     struct loongson_params lp;
 179 };
 180
 181 struct efi_reset_system_t {
 182     uint64_t ResetCold;
 183     uint64_t ResetWarm;
 184     uint64_t ResetType;
 185     uint64_t Shutdown;
 186     uint64_t DoSuspend; /* NULL if not support */
 187 };
 188
 189 struct efi_loongson {
 190     uint64_t mps;                /* MPS table */
 191     uint64_t acpi;               /* ACPI table (IA64 ext 0.71) */
 192     uint64_t acpi20;             /* ACPI table (ACPI 2.0) */
 193     struct smbios_tables smbios; /* SM BIOS table */
 194     uint64_t sal_systab;         /* SAL system table */
 195     uint64_t boot_info;          /* boot info table */
 196 };
 197
 198 struct boot_params {
 199     struct efi_loongson efi;
 200     struct efi_reset_system_t reset_system;
 201 };
 202
 203 /* Overall MMIO & Memory layout */
 204 enum {
 205     VIRT_LOWMEM,
 206     VIRT_PM,
 207     VIRT_FW_CFG,
 208     VIRT_RTC,
 209     VIRT_PCIE_PIO,
 210     VIRT_PCIE_ECAM,
 211     VIRT_BIOS_ROM,
 212     VIRT_UART,
 213     VIRT_LIOINTC,
 214     VIRT_PCIE_MMIO,
 215     VIRT_HIGHMEM
 216 };
 217
 218 /* Low MEM layout for QEMU kernel loader */
 219 enum {
 220     LOADER_KERNEL,
 221     LOADER_INITRD,
 222     LOADER_CMDLINE
 223 };
 224
 225 /* BIOS ROM layout for QEMU kernel loader */
 226 enum {
 227     LOADER_BOOTROM,
 228     LOADER_PARAM,
 229 };
 230
 231 extern const MemMapEntry virt_memmap[];
 232 void init_loongson_params(struct loongson_params *lp, void *p,
 233                           uint64_t cpu_freq, uint64_t ram_size);
 234 void init_reset_system(struct efi_reset_system_t *reset);
 235
 236 #endif