tree fec5a7c0728192268577dd5719f550bf3dcf3a63
parent 1a06d2a3106f9de5a4b9bec68593593fcf930e3b
author Simon Glass <sjg@chromium.org> 1430274314 -0600
committer Simon Glass <sjg@chromium.org> 1430362954 -0600

x86: Add an mfence macro

Provide access to this x86 instruction from C code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>