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Commit ce0c1fcc authored by Aleksey Makarov's avatar Aleksey Makarov Committed by Rafael J. Wysocki
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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: default avatarAleksey Makarov <aleksey.makarov@linaro.org>
Acked-by: default avatarLv Zheng <lv.zheng@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 33688abb

drivers/acpi/tables.c

+3 −3
Original line number Diff line number Diff line
@@ -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;