Unverified Commit b0fd4b1b authored by Jisheng Zhang's avatar Jisheng Zhang Committed by Palmer Dabbelt
Browse files

riscv: mm: fix wrong phys_ram_base value for RV64 



Currently, if 64BIT and !XIP_KERNEL, the phys_ram_base is always 0,
no matter the real start of dram reported by memblock is.

Fixes: 6d7f91d9 ("riscv: Get rid of CONFIG_PHYS_RAM_BASE in kernel physical address conversion")
Signed-off-by: default avatarJisheng Zhang <jszhang@kernel.org>
Reviewed-by: default avatarAlexandre Ghiti <alex@ghiti.fr>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent 869c7060

arch/riscv/mm/init.c

+1 −1
Original line number Diff line number Diff line
@@ -187,10 +187,10 @@ static void __init setup_bootmem(void) 




	phys_ram_end = memblock_end_of_DRAM();

#ifndef CONFIG_64BIT

#ifndef CONFIG_XIP_KERNEL

	phys_ram_base = memblock_start_of_DRAM();

#endif

#ifndef CONFIG_64BIT

	/*

	 * memblock allocator is not aware of the fact that last 4K bytes of

	 * the addressable memory can not be mapped because of IS_ERR_VALUE