Module Name:	syssrc
Committed By:	chs
Date:		Fri Aug  2 03:46:47 UTC 2002

Modified Files:
	syssrc/sys/arch/powerpc/ibm4xx: trap.c trap_subr.S
	syssrc/sys/arch/powerpc/mpc6xx: genassym.cf mpc6xx_machdep.c
	syssrc/sys/arch/powerpc/powerpc: syscall.c trap.c trap_subr.S
	    trap_subr_mp.S
	syssrc/sys/arch/walnut/walnut: genassym.cf machdep.c
Added Files:
	syssrc/sys/arch/powerpc/include: userret.h

Log Message:
use a completely separate trap handler for syscall traps.
this reduces syscall overhead by 10% to 20% depending on cpu type.


To generate a diff of this commit:
cvs rdiff -r1.7 -r1.8 syssrc/sys/arch/powerpc/ibm4xx/trap.c
cvs rdiff -r1.4 -r1.5 syssrc/sys/arch/powerpc/ibm4xx/trap_subr.S
cvs rdiff -r0 -r1.1 syssrc/sys/arch/powerpc/include/userret.h
cvs rdiff -r1.5 -r1.6 syssrc/sys/arch/powerpc/mpc6xx/genassym.cf
cvs rdiff -r1.4 -r1.5 syssrc/sys/arch/powerpc/mpc6xx/mpc6xx_machdep.c
cvs rdiff -r1.3 -r1.4 syssrc/sys/arch/powerpc/powerpc/syscall.c
cvs rdiff -r1.66 -r1.67 syssrc/sys/arch/powerpc/powerpc/trap.c
cvs rdiff -r1.26 -r1.27 syssrc/sys/arch/powerpc/powerpc/trap_subr.S
cvs rdiff -r1.5 -r1.6 syssrc/sys/arch/powerpc/powerpc/trap_subr_mp.S
cvs rdiff -r1.3 -r1.4 syssrc/sys/arch/walnut/walnut/genassym.cf
cvs rdiff -r1.7 -r1.8 syssrc/sys/arch/walnut/walnut/machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.