sh: Calculate cache aliases on L2 caches.

Calculate the number of cache aliases on probed L2 caches, and while
we're at it, print out the detected statistics at boot time for these
also.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/arch/sh/mm/cache-sh4.c b/arch/sh/mm/cache-sh4.c
index 6c36c2fb8199..226b190c5b9c 100644
--- a/arch/sh/mm/cache-sh4.c
+++ b/arch/sh/mm/cache-sh4.c
@@ -70,6 +70,20 @@ static void __init emit_cache_params(void)
                 boot_cpu_data.dcache.alias_mask,
                 boot_cpu_data.dcache.n_aliases);
 
+        /*
+         * Emit Secondary Cache parameters if the CPU has a probed L2.
+         */
+        if (boot_cpu_data.flags & CPU_HAS_L2_CACHE) {
+                printk("S-cache : n_ways=%d n_sets=%d way_incr=%d\n",
+                        boot_cpu_data.scache.ways,
+                        boot_cpu_data.scache.sets,
+                        boot_cpu_data.scache.way_incr);
+                printk("S-cache : entry_mask=0x%08x alias_mask=0x%08x n_aliases=%d\n",
+                        boot_cpu_data.scache.entry_mask,
+                        boot_cpu_data.scache.alias_mask,
+                        boot_cpu_data.scache.n_aliases);
+        }
+
         if (!__flush_dcache_segment_fn)
                 panic("unknown number of cache ways\n");
 }
@@ -81,6 +95,7 @@ void __init p3_cache_init(void)
 {
         compute_alias(&boot_cpu_data.icache);
         compute_alias(&boot_cpu_data.dcache);
+        compute_alias(&boot_cpu_data.scache);
 
         switch (boot_cpu_data.dcache.ways) {
         case 1: