The patch titled Subject: nios2: use generic early_init_dt_add_memory_arch has been added to the -mm tree. Its filename is nios2-use-generic-early_init_dt_add_memory_arch.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/nios2-use-generic-early_init_dt_add_memory_arch.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/nios2-use-generic-early_init_dt_add_memory_arch.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx> Subject: nios2: use generic early_init_dt_add_memory_arch All we have to do is to enable memblock, the generic FDT code will take care of the rest. Link: http://lkml.kernel.org/r/1533326330-31677-4-git-send-email-rppt@xxxxxxxxxxxxxxxxxx Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx> Acked-by: Ley Foon Tan <ley.foon.tan@xxxxxxxxx> Cc: Guan Xuetao <gxt@xxxxxxxxxx> Cc: Richard Kuo <rkuo@xxxxxxxxxxxxxx> Cc: Richard Weinberger <richard@xxxxxx> Cc: Rob Herring <robh@xxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/nios2/Kconfig | 1 + arch/nios2/kernel/prom.c | 10 ---------- arch/nios2/kernel/setup.c | 2 ++ 3 files changed, 3 insertions(+), 10 deletions(-) --- a/arch/nios2/Kconfig~nios2-use-generic-early_init_dt_add_memory_arch +++ a/arch/nios2/Kconfig @@ -23,6 +23,7 @@ config NIOS2 select SPARSE_IRQ select USB_ARCH_HAS_HCD if USB_SUPPORT select CPU_NO_EFFICIENT_FFS + select HAVE_MEMBLOCK config GENERIC_CSUM def_bool y --- a/arch/nios2/kernel/prom.c~nios2-use-generic-early_init_dt_add_memory_arch +++ a/arch/nios2/kernel/prom.c @@ -32,16 +32,6 @@ #include <asm/sections.h> -void __init early_init_dt_add_memory_arch(u64 base, u64 size) -{ - u64 kernel_start = (u64)virt_to_phys(_text); - - if (!memory_size && - (kernel_start >= base) && (kernel_start < (base + size))) - memory_size = size; - -} - int __init early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size, bool nomap) { --- a/arch/nios2/kernel/setup.c~nios2-use-generic-early_init_dt_add_memory_arch +++ a/arch/nios2/kernel/setup.c @@ -17,6 +17,7 @@ #include <linux/sched/task.h> #include <linux/console.h> #include <linux/bootmem.h> +#include <linux/memblock.h> #include <linux/initrd.h> #include <linux/of_fdt.h> #include <linux/screen_info.h> @@ -147,6 +148,7 @@ void __init setup_arch(char **cmdline_p) console_verbose(); + memory_size = memblock_phys_mem_size(); memory_start = PAGE_ALIGN((unsigned long)__pa(_end)); memory_end = (unsigned long) CONFIG_NIOS2_MEM_BASE + memory_size; _ Patches currently in -mm which might be from rppt@xxxxxxxxxxxxxxxxxx are hexagon-switch-to-no_bootmem.patch of-ignore-sub-page-memory-regions.patch nios2-use-generic-early_init_dt_add_memory_arch.patch nios2-switch-to-no_bootmem.patch um-setup_physmem-stop-using-global-variables.patch um-switch-to-no_bootmem.patch unicore32-switch-to-no_bootmem.patch