[PATCH 1/3] ACPI: table upgrade: use cacheable map for tables

Zheng, Lv
2016-05-18T03:06:35Z

Hi,

> From: Aleksey Makarov [mailto:aleksey.makarov at linaro.org]
> Subject: [PATCH 1/3] ACPI: table upgrade: use cacheable map for tables
>
> The new memory allocated in acpi_table_initrd_init() is used to
> copy the upgraded tables to it. So it should be mapped with
> early_memunmap() instead of early_ioremap().
>
> This is critical for ARM.
>
> Signed-off-by: Aleksey Makarov <aleksey.makarov@linaro.org>
[Lv Zheng]
Acked-by: Lv Zheng <lv.zheng@intel.com>

Thanks
-Lv

> ---
> drivers/acpi/tables.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
> index a372f9e..449a649 100644
> --- a/drivers/acpi/tables.c
> +++ b/drivers/acpi/tables.c
> @@ -578,10 +578,10 @@ static void __init acpi_table_initrd_init(void *data,
> size_t size)
> clen = size;
> if (clen > MAP_CHUNK_SIZE - slop)
> clen = MAP_CHUNK_SIZE - slop;
> - dest_p = early_ioremap(dest_addr & PAGE_MASK,
> + dest_p = early_memremap(dest_addr & PAGE_MASK,
> clen + slop);
> memcpy(dest_p + slop, src_p, clen);
> - early_iounmap(dest_p, clen + slop);
> + early_memunmap(dest_p, clen + slop);
> src_p += clen;
> dest_addr += clen;
> size -= clen;
> --
> 2.8.2