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Remove #ifdef'ed out PMAX_CACHEFLUSH_FORCES_WBFLUSH codes in cache 

flush ops which has had no effect for long time.
This commit is contained in:
nisimura 2000-03-04 11:37:31 +00:00
parent 30370336dc
commit 03bf9a2dc3
1 changed files with 1 additions and 24 deletions
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25
sys/arch/mips/mips/locore_mips1.S
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@ -1,4 +1,4 @@
/* $NetBSD: locore_mips1.S,v 1.22 2000/02/23 17:04:06 mhitch Exp $ */
/* $NetBSD: locore_mips1.S,v 1.23 2000/03/04 11:37:31 nisimura Exp $ */
/*
* Copyright (c) 1992, 1993
@ -1445,17 +1445,6 @@ LEAF(mips1_FlushICache)
j v1
nop
1:
#ifdef PMAX_CACHEFLUSH_FORCES_WBFLUSH /* XXX */
/*
* The insn below attempts to wait for the writebuffer to drain.
* It does not work on all MIPS hosts or maybe even all DEC machines.
* It assumes that the COP0 usability bit is wired to external
* writebuffer logic. This is not true on some DECstations or on
* the SONY news3400.
* Why we are even doing this for an I-cache flush is beyond me.
*/
bc0f 1b # make sure stores are complete
#endif /* PMAX_CACHEFLUSH_FORCES_WBFLUSH */
li v1, MIPS_SR_ISOL_CACHES | MIPS_SR_SWAP_CACHES # DELAYSLOT
mtc0 v1, MIPS_COP_0_STATUS
@ -1494,18 +1483,6 @@ LEAF(mips1_FlushDCache)
mtc0 zero, MIPS_COP_0_STATUS # Disable interrupts.
nop
#ifdef PMAX_CACHEFLUSH_FORCES_WBFLUSH /* XXX */
/*
* The insn below attempts to wait for the writebuffer to drain.
* It does not work on all MIPS hosts or maybe even all DEC machines.
* It assumes that the COP0 usability bit is wired to external
* writebuffer logic. This is not true on some DECstations or on
* the SONY news3400. (note the following ld is in our delayslot.)
*/
1:
bc0f 1b # make sure stores are complete
#endif /* PMAX_CACHEFLUSH_FORCES_WBFLUSH */
li v1, MIPS_SR_ISOL_CACHES # DELAYSLOT
mtc0 v1, MIPS_COP_0_STATUS
nop