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Fenghua Yu authored
alternative_input_2() replaces old instruction with new instructions with input based on two features. In alternative_input_2(oldinstr, newinstr1, feature1, newinstr2, feature2, input...), feature2 has higher priority to replace oldinstr than feature1. If CPU has feature2, newinstr2 replaces oldinstr and newinstr2 is executed during run time. If CPU doesn't have feature2, but it has feature1, newinstr1 replaces oldinstr and newinstr1 is executed during run time. If CPU doesn't have feature2 and feature1, oldinstr is executed during run time. Signed-off-by:
Fenghua Yu <fenghua.yu@intel.com> Link: http://lkml.kernel.org/r/1401387164-43416-5-git-send-email-fenghua.yu@intel.comSigned-off-by:
H. Peter Anvin <hpa@linux.intel.com>
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