From: Atish Patra Date: Wed, 15 Jul 2020 23:30:07 +0000 (-0700) Subject: RISC-V: Set maximum number of mapped pages correctly X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=d0d8aae64566b753c4330fbd5944b88af035f299;p=linux.git RISC-V: Set maximum number of mapped pages correctly Currently, maximum number of mapper pages are set to the pfn calculated from the memblock size of the memblock containing kernel. This will work until that memblock spans the entire memory. However, it will be set to a wrong value if there are multiple memblocks defined in kernel (e.g. with efi runtime services). Set the the maximum value to the pfn calculated from dram size. Signed-off-by: Atish Patra Signed-off-by: Palmer Dabbelt --- diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index f4adb3684f3db..8d22973bde406 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -150,9 +150,9 @@ void __init setup_bootmem(void) /* Reserve from the start of the kernel to the end of the kernel */ memblock_reserve(vmlinux_start, vmlinux_end - vmlinux_start); - set_max_mapnr(PFN_DOWN(mem_size)); max_pfn = PFN_DOWN(memblock_end_of_DRAM()); max_low_pfn = max_pfn; + set_max_mapnr(max_low_pfn); #ifdef CONFIG_BLK_DEV_INITRD setup_initrd();