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Code srmmu_vcache_flush_range & srmmu_vcache_flush_page more efficiently.

This commit is contained in:
pk 2004-04-18 20:46:39 +00:00
parent 57bbd955d1
commit 27f928584a
1 changed files with 8 additions and 7 deletions
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15
sys/arch/sparc/sparc/cache.c
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@ -1,4 +1,4 @@
/* $NetBSD: cache.c,v 1.86 2004/04/17 23:45:40 pk Exp $ */
/* $NetBSD: cache.c,v 1.87 2004/04/18 20:46:39 pk Exp $ */
/*
* Copyright (c) 1996
@ -59,7 +59,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cache.c,v 1.86 2004/04/17 23:45:40 pk Exp $");
__KERNEL_RCSID(0, "$NetBSD: cache.c,v 1.87 2004/04/18 20:46:39 pk Exp $");
#include "opt_multiprocessor.h"
#include "opt_sparc_arch.h"
@ -672,11 +672,11 @@ srmmu_vcache_flush_page(va, ctx)
cachestats.cs_npgflush++;
p = (char *)va;
ls = CACHEINFO.c_linesize;
i = PAGE_SIZE >> CACHEINFO.c_l2linesize;
i = PAGE_SIZE;
octx = getcontext4m();
trapoff();
setcontext4m(ctx);
for (; --i >= 0; p += ls)
for (; i > 0; p += ls, i -= ls)
sta(p, ASI_IDCACHELFP, 0);
#if defined(MULTIPROCESSOR)
/*
@ -712,13 +712,13 @@ srmmu_vcache_flush_range(int va, int len, int ctx)
/* Compute # of cache lines covered by this range */
ls = CACHEINFO.c_linesize;
offset = va & (ls - 1);
i = (offset + len + ls - 1) >> CACHEINFO.c_l2linesize;
p = (char *)(va & -ls);
i = len + offset;
p = (char *)(va & ~(ls - 1));
octx = getcontext4m();
trapoff();
setcontext4m(ctx);
for (; --i >= 0; p += ls)
for (; i > 0; p += ls, i -= ls)
sta(p, ASI_IDCACHELFP, 0);
#if defined(MULTIPROCESSOR)
@ -1065,3 +1065,4 @@ smp_vcache_flush_context(ctx)
ctx, CPUSET_ALL);
}
#endif /* MULTIPROCESSOR */
int xxxcnt = 0xa00000;