1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited 4 */ 5 #ifndef _ASM_BOOTINFO_H 6 #define _ASM_BOOTINFO_H 7 8 #include <linux/types.h> 9 #include <asm/setup.h> 10 11 const char *get_system_type(void); 12 13 extern void init_environ(void); 14 extern void memblock_init(void); 15 extern void platform_init(void); 16 extern int __init init_numa_memory(void); 17 18 struct loongson_board_info { 19 int bios_size; 20 const char *bios_vendor; 21 const char *bios_version; 22 const char *bios_release_date; 23 const char *board_name; 24 const char *board_vendor; 25 }; 26 27 #define NR_WORDS DIV_ROUND_UP(NR_CPUS, BITS_PER_LONG) 28 29 /* 30 * The "core" of cores_per_node and cores_per_package stands for a 31 * logical core, which means in a SMT system it stands for a thread. 32 */ 33 struct loongson_system_configuration { 34 int nr_cpus; 35 int nr_nodes; 36 int boot_cpu_id; 37 int cores_per_node; 38 int cores_per_package; 39 unsigned long cores_io_master[NR_WORDS]; 40 unsigned long suspend_addr; 41 const char *cpuname; 42 }; 43 44 extern u64 efi_system_table; 45 extern unsigned long fw_arg0, fw_arg1, fw_arg2; 46 extern struct loongson_board_info b_info; 47 extern struct loongson_system_configuration loongson_sysconf; 48 io_master(int cpu)49static inline bool io_master(int cpu) 50 { 51 return test_bit(cpu, loongson_sysconf.cores_io_master); 52 } 53 54 #endif /* _ASM_BOOTINFO_H */ 55