提交 ce0c1fcc 编写于 作者: A Aleksey Makarov 提交者: Rafael J. Wysocki

ACPI / tables: 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: NAleksey Makarov <aleksey.makarov@linaro.org>
Acked-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
上级 33688abb
......@@ -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,
clen + slop);
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;
......
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