diff mbox series

[5.16,0028/1039] riscv: mm: fix wrong phys_ram_base value for RV64

Message ID 20220124184126.086370772@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman Jan. 24, 2022, 6:30 p.m. UTC 
From: Jisheng Zhang <jszhang@kernel.org>

commit b0fd4b1bf995172b9efcee23600d4f69571c321c upstream.

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: 6d7f91d914bc ("riscv: Get rid of CONFIG_PHYS_RAM_BASE in kernel physical address conversion")
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Alexandre Ghiti <alex@ghiti.fr>
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/riscv/mm/init.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -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