[PATCH 2/2] mips: cpuinfo: report secondary cache configuration
Peter Mamonov
pmamonov at gmail.com
Mon Nov 2 08:30:30 PST 2015
---
arch/mips/lib/cpuinfo.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/mips/lib/cpuinfo.c b/arch/mips/lib/cpuinfo.c
index 1b17169..fb02a4d 100644
--- a/arch/mips/lib/cpuinfo.c
+++ b/arch/mips/lib/cpuinfo.c
@@ -28,7 +28,7 @@ static char *way_string[] = { NULL, "direct mapped", "2-way",
static int do_cpuinfo(int argc, char *argv[])
{
- unsigned int icache_size, dcache_size;
+ unsigned int icache_size, dcache_size, scache_size;
struct cpuinfo_mips *c = ¤t_cpu_data;
printk(KERN_INFO "CPU revision is: %08x (%s)\n",
@@ -48,6 +48,15 @@ static int do_cpuinfo(int argc, char *argv[])
(c->dcache.flags & MIPS_CACHE_ALIASES) ?
"cache aliases" : "no aliases",
c->dcache.linesz);
+ if (c->scache.flags & MIPS_CACHE_NOT_PRESENT)
+ return 0;
+ scache_size = c->scache.sets * c->scache.ways * c->scache.linesz;
+ printk("Secondary data cache %ldkB, %s, %s, %s, linesize %d bytes\n",
+ scache_size >> 10, way_string[c->scache.ways],
+ (c->scache.flags & MIPS_CACHE_PINDEX) ? "PIPT" : "VIPT",
+ (c->scache.flags & MIPS_CACHE_ALIASES) ?
+ "cache aliases" : "no aliases",
+ c->scache.linesz);
return 0;
}
--
2.1.4
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