Date: Wed, 30 Apr 1997 16:11:52 +1000 From: Bruce Evans <bde@zeta.org.au> To: cvs-all@FreeBSD.org, CVS-committers@FreeBSD.org, cvs-sys@FreeBSD.org, peter@freefall.FreeBSD.ORG Subject: Re: cvs commit: src/sys/i386/include spl.h src/sys/i386/isa vector.s Message-ID: <199704300611.QAA07968@godzilla.zeta.org.au>
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> Modified: sys/i386/include spl.h > sys/i386/isa vector.s > Log: > Use a common numbering of the tty and net software interrupt levels > between the SMP and non-SMP case. It simplifies the #ifdef's, since > NHWI changes (at least for the moment) when APIC's are involved. This is a pessimization for the non-SMP case. It takes 3*N cycles on 386's and N cycles on [4-5]86's for the `bsfl' instruction to scan for the bits when they are N bits higher (N = 12 here). Bruce
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