| From 78e735821ad20e3dbb522ad2696d5d4914767689 Mon Sep 17 00:00:00 2001 |
| From: Guo Ren <ren_guo@c-sky.com> |
| Date: Sat, 12 Jan 2019 16:16:27 +0800 |
| Subject: riscv: fixup max_low_pfn with PFN_DOWN. |
| |
| [ Upstream commit 28198c4639b39899a728ac89aea29d2a7a72562f ] |
| |
| max_low_pfn should be pfn_size not byte_size. |
| |
| Signed-off-by: Guo Ren <ren_guo@c-sky.com> |
| Signed-off-by: Mao Han <mao_han@c-sky.com> |
| Signed-off-by: Palmer Dabbelt <palmer@sifive.com> |
| Signed-off-by: Sasha Levin <sashal@kernel.org> |
| --- |
| arch/riscv/kernel/setup.c | 2 +- |
| arch/riscv/mm/init.c | 3 ++- |
| 2 files changed, 3 insertions(+), 2 deletions(-) |
| |
| diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c |
| index b2d26d9d8489..9713d4e8c22b 100644 |
| --- a/arch/riscv/kernel/setup.c |
| +++ b/arch/riscv/kernel/setup.c |
| @@ -186,7 +186,7 @@ static void __init setup_bootmem(void) |
| BUG_ON(mem_size == 0); |
| |
| set_max_mapnr(PFN_DOWN(mem_size)); |
| - max_low_pfn = memblock_end_of_DRAM(); |
| + max_low_pfn = PFN_DOWN(memblock_end_of_DRAM()); |
| |
| #ifdef CONFIG_BLK_DEV_INITRD |
| setup_initrd(); |
| diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c |
| index 58a522f9bcc3..200a4b315e15 100644 |
| --- a/arch/riscv/mm/init.c |
| +++ b/arch/riscv/mm/init.c |
| @@ -29,7 +29,8 @@ static void __init zone_sizes_init(void) |
| unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, }; |
| |
| #ifdef CONFIG_ZONE_DMA32 |
| - max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G, max_low_pfn)); |
| + max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G, |
| + (unsigned long) PFN_PHYS(max_low_pfn))); |
| #endif |
| max_zone_pfns[ZONE_NORMAL] = max_low_pfn; |
| |
| -- |
| 2.19.1 |
| |