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riscv: fixup max_low_pfn with PFN_DOWN. 

[ Upstream commit 28198c4639 ]

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>
This commit is contained in:
Guo Ren 2019-01-12 16:16:27 +08:00 committed by Greg Kroah-Hartman
parent 9e1f977d82
commit ffabf74c67
2 changed files with 3 additions and 2 deletions
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2
arch/riscv/kernel/setup.c
View File

@ -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();

3
arch/riscv/mm/init.c
View File

@ -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;