stable inclusion
from stable-5.10.4
commit 3a881be1b4e9f7485de4bc1a2f5968763df8a789
bugzilla: 46903

--------------------------------

commit 83ff51c4 upstream.

Instead of raw access, use readl() to access MMIO registers of
memory controller to avoid possible compiler re-ordering.

Fixes: d4dc89d0 ("EDAC, i10nm: Add a driver for Intel 10nm server processors")
Cc: <stable@vger.kernel.org>
Signed-off-by: NQiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: NTony Luck <tony.luck@intel.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NChen Jun <chenjun102@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>