H. Peter Anvin ea94396629 x86, apic: Don't waste a vector to improve vector spread ... We want to use a vector-assignment sequence that avoids stumbling onto 0x80 earlier in the sequence, in order to improve the spread of vectors across priority levels on machines with a small number of interrupt sources. Right now, this is done by simply making the first vector (0x31 or 0x41) completely unusable. This is unnecessary; all we need is to start assignment at a +1 offset, we don't actually need to prohibit the usage of this vector once we have wrapped around. Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <4B426550.6000209@kernel.org>		2010-01-04 21:28:24 -08:00
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asm	x86, apic: Don't waste a vector to improve vector spread	2010-01-04 21:28:24 -08:00