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| author | Huacai Chen <chenhuacai@loongson.cn> | 2024-10-21 17:11:18 +0300 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2024-10-21 17:11:18 +0300 |
| commit | b7296f9d5bf99330063d4bbecc43c9b33fed0137 (patch) | |
| tree | 77eda88a7e55b94c80fc5f118bd71be006670dcb /arch/loongarch/include/asm | |
| parent | b69269c870ece1bc7d2e3e39ca76f4602f2cb0dd (diff) | |
| download | linux-b7296f9d5bf99330063d4bbecc43c9b33fed0137.tar.xz | |
LoongArch: Get correct cores_per_package for SMT systems
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>
Diffstat (limited to 'arch/loongarch/include/asm')
| -rw-r--r-- | arch/loongarch/include/asm/bootinfo.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/bootinfo.h b/arch/loongarch/include/asm/bootinfo.h index 6d5846dd075c..7657e016233f 100644 --- a/arch/loongarch/include/asm/bootinfo.h +++ b/arch/loongarch/include/asm/bootinfo.h @@ -26,6 +26,10 @@ struct loongson_board_info { #define NR_WORDS DIV_ROUND_UP(NR_CPUS, BITS_PER_LONG) +/* + * 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. + */ struct loongson_system_configuration { int nr_cpus; int nr_nodes; |