kernel.git/arch/loongarch/kernel/cacheinfo.c, branch linux-6.0.y

LoongArch: Fix shared cache size calculation

2022-07-29T10:22:33Z

Current calculation of shared cache size is from the node (die) scope, but we hope 'lscpu' to show the shared cache size of the whole package for multi-die chips (e.g., Loongson-3C5000L, which contains 4 dies in one package). So fix it by multiplying nodes_per_package. Signed-off-by: Huacai Chen

LoongArch: Fix the !CONFIG_SMP build

2022-06-08T03:00:40Z

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 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 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

LoongArch: Add boot and setup routines

2022-06-03T12:09:28Z

Add basic boot, setup and reset routines for LoongArch. Now, LoongArch machines use UEFI-based firmware. The firmware passes configuration information to the kernel via ACPI and DMI/SMBIOS. Currently an existing interface between the kernel and the bootloader is implemented. Kernel gets 2 values from the bootloader, passed in registers a0 and a1; a0 is an "EFI boot flag" distinguishing UEFI and non-UEFI firmware, while a1 is a pointer to an FDT with systable, memmap, cmdline and initrd information. The standard UEFI boot protocol (EFISTUB) will be added later. Cc: linux-efi@vger.kernel.org Cc: Ard Biesheuvel Reviewed-by: WANG Xuerui Reviewed-by: Jiaxun Yang Co-developed-by: Yun Liu Signed-off-by: Yun Liu Signed-off-by: Huacai Chen