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a522b7ad8e
Now io master CPUs are not hotpluggable on LoongArch, but in the current
code only /sys/devices/system/cpu/cpu0/online is not created. Let us set
the hotpluggable field of all the io master CPUs as 0, then prevent to
create sysfs control file for all the io master CPUs which confuses some
user space tools. This is similar with commit 9cce844abf ("MIPS: CPU#0
is not hotpluggable").
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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*/
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#ifndef _ASM_BOOTINFO_H
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#define _ASM_BOOTINFO_H
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#include <linux/types.h>
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#include <asm/setup.h>
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const char *get_system_type(void);
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extern void init_environ(void);
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extern void memblock_init(void);
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extern void platform_init(void);
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extern void plat_swiotlb_setup(void);
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extern int __init init_numa_memory(void);
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struct loongson_board_info {
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int bios_size;
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const char *bios_vendor;
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const char *bios_version;
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const char *bios_release_date;
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const char *board_name;
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const char *board_vendor;
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};
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struct loongson_system_configuration {
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int nr_cpus;
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int nr_nodes;
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int boot_cpu_id;
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int cores_per_node;
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int cores_per_package;
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unsigned long cores_io_master;
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const char *cpuname;
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};
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extern u64 efi_system_table;
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extern unsigned long fw_arg0, fw_arg1, fw_arg2;
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extern struct loongson_board_info b_info;
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extern struct loongson_system_configuration loongson_sysconf;
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static inline bool io_master(int cpu)
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{
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return test_bit(cpu, &loongson_sysconf.cores_io_master);
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}
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#endif /* _ASM_BOOTINFO_H */
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