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| author | Huang Pei <huangpei@loongson.cn> | 2021-03-24 11:24:51 +0800 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2021-03-25 10:48:42 +0100 |
| commit | 509d36a941a3466b78d4377913623d210b162458 (patch) | |
| tree | b65378c508aa369a1c3fd1e6ef817ed6177a1ec0 /arch/mips | |
| parent | 84a0124a9d715d844675c8cfbe5bbc9147121f73 (diff) | |
| download | linux-509d36a941a3466b78d4377913623d210b162458.tar.gz linux-509d36a941a3466b78d4377913623d210b162458.tar.bz2 linux-509d36a941a3466b78d4377913623d210b162458.zip | |
MIPS: loongson64: fix bug when PAGE_SIZE > 16KB
When page size larger than 16KB, arguments "vaddr + size(16KB)" in
"ioremap_page_range(vaddr, vaddr + size,...)" called by
"add_legacy_isa_io" is not page-aligned.
As loongson64 needs at least page size 16KB to get rid of cache alias,
and "vaddr" is 64KB-aligned, and 64KB is largest page size supported,
rounding "size" up to PAGE_SIZE is enough for all page size supported.
Fixes: 6d0068ad15e4 ("MIPS: Loongson64: Process ISA Node in DeviceTree")
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Acked-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/loongson64/init.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index d5a1eddb8202..76e0a9636a0e 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -141,7 +141,7 @@ static int __init add_legacy_isa_io(struct fwnode_handle *fwnode, resource_size_ return -ENOMEM; range->fwnode = fwnode; - range->size = size; + range->size = size = round_up(size, PAGE_SIZE); range->hw_start = hw_start; range->flags = LOGIC_PIO_CPU_MMIO; |