Linux kernel development work - see feature branches https://git.zx2c4.com/linux-dev/atom/arch/loongarch/include/asm/percpu.h?h=linus%2Fmaster 2022-06-08T03:00:40Z 2022-06-08T03:00:40Z Huacai Chen chenhuacai@loongson.cn 2022-06-05T08:19:53Z urn:sha1:255b4658c809e194bc10236ac24a722ec14a83d6 1, We assume arch/loongarch/include/asm/smp.h be included in include/ linux/smp.h is valid and the reverse inclusion isn't. So remove the <linux/smp.h> in arch/loongarch/include/asm/smp.h. 2, arch/loongarch/include/asm/smp.h is only needed when CONFIG_SMP, and setup.c include it only because it need plat_smp_setup(). So, reorganize setup.c & smp.h, and then remove <asm/smp.h> in setup.c. 3, Fix cacheinfo.c and percpu.h build error by adding the missing header files when !CONFIG_SMP. 4, Fix acpi.c build error by adding CONFIG_SMP guards. 5, Move irq_stat definition from smp.c to irq.c and fix its declaration. 6, Select CONFIG_SMP for CONFIG_NUMA, similar as other architectures do. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 2022-06-03T12:09:29Z Huacai Chen chenhuacai@loongson.cn 2022-05-31T10:04:12Z urn:sha1:46859ac8af52ae599e1b51992ddef3eb43f295fc LoongArch-based procesors have 4, 8 or 16 cores per package. This patch adds multi-processor (SMP) support for LoongArch. Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> 2022-06-03T12:09:28Z Huacai Chen chenhuacai@loongson.cn 2022-05-31T10:04:11Z urn:sha1:5b0b14e550a006b4d093619e7517923872bcc218 Add common headers (atomic, bitops, barrier and locking) for basic LoongArch support. Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>