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turbosparc_cache_enable: record the external cache size for informational 

puposes.
This commit is contained in:
pk 2005-02-06 20:22:15 +00:00
parent 237a0c2d85
commit d1a1682842
1 changed files with 14 additions and 2 deletions
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16
sys/arch/sparc/sparc/cache.c
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@ -1,4 +1,4 @@
/* $NetBSD: cache.c,v 1.90 2004/04/27 16:37:43 pk Exp $ */
/* $NetBSD: cache.c,v 1.91 2005/02/06 20:22:15 pk Exp $ */
/*
* Copyright (c) 1996
@ -59,7 +59,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: cache.c,v 1.90 2004/04/27 16:37:43 pk Exp $");
__KERNEL_RCSID(0, "$NetBSD: cache.c,v 1.91 2005/02/06 20:22:15 pk Exp $");
#include "opt_multiprocessor.h"
#include "opt_sparc_arch.h"
@ -320,6 +320,8 @@ turbosparc_cache_enable()
{
int i, ls, ts;
u_int pcr, pcf;
/* External cache sizes in KB; see Turbo sparc manual */
static const int ts_ecache_table[8] = {0,256,512,1024,512,1024,1024,0};
cache_alias_dist = max(
CACHEINFO.ic_totalsize / CACHEINFO.ic_associativity,
@ -345,6 +347,16 @@ turbosparc_cache_enable()
sta(SRMMU_PCR, ASI_SRMMU, pcr);
pcf = lda(SRMMU_PCFG, ASI_SRMMU);
if (pcf & TURBOSPARC_PCFG_SE) {
/*
* Record external cache info. The Turbosparc's second-
* level cache is physically addressed/tagged and is
* not exposed by the PROM.
*/
CACHEINFO.ec_totalsize = 1024 *
ts_ecache_table[(pcf & TURBOSPARC_PCFG_SCC)];
CACHEINFO.ec_linesize = 32;
}
if (pcf & TURBOSPARC_PCFG_SNP)
printf(": DVMA coherent ");