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In loongson_sysconf, The "core" of cores_per_node and cores_per_package stands for a logical core, which means in a SMT system it stands for a thread indeed. This information is gotten from SMBIOS Type4 Structure, so in order to get a correct cores_per_package for both SMT and non-SMT systems in parse_cpu_table() we should use SMBIOS_THREAD_PACKAGE_OFFSET instead of SMBIOS_CORE_PACKAGE_OFFSET. Cc: stable@vger.kernel.org Reported-by: Chao Li <lichao@loongson.cn> Tested-by: Chao Li <lichao@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
54 lines
1.3 KiB
C
54 lines
1.3 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 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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#define NR_WORDS DIV_ROUND_UP(NR_CPUS, BITS_PER_LONG)
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/*
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* The "core" of cores_per_node and cores_per_package stands for a
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* logical core, which means in a SMT system it stands for a thread.
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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[NR_WORDS];
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unsigned long suspend_addr;
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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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