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Shuichiro URATA pointed out that the R4000 needs 3 nops. Other OSs make 

it look at casual inspection like 1 nop is needed but play other tricks.
Still have reduced by 1 nop.  Hopefully this covers the NEC 41[x]1.  Could
not find info for those processors.
This commit is contained in:
jeffs 2000-09-07 20:31:02 +00:00
parent a1139ee535
commit 8f8a7ca780
1 changed files with 5 additions and 1 deletions
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6
sys/arch/mips/mips/locore_mips3.S
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@ -1,4 +1,4 @@
/* $NetBSD: locore_mips3.S,v 1.46 2000/09/06 06:33:42 jeffs Exp $ */
/* $NetBSD: locore_mips3.S,v 1.47 2000/09/07 20:31:02 jeffs Exp $ */
/*
* Copyright (c) 1997 Jonathan Stone (hereinafter referred to as the author)
@ -210,6 +210,8 @@ VECTOR(mips3_TLBMiss, unknown)
nop
nop # required for QED5230
tlbwr # update TLB
nop # 3 nops for R4000/R4400
nop
nop
eret
4:
@ -277,6 +279,8 @@ VECTOR(mips3_XTLBMiss, unknown)
nop
nop # required for QED5230
tlbwr # update TLB
nop # 3 nops for R4000/R4400
nop
nop
eret
4: