Commit ab27f620 authored by Paul Mundt's avatar Paul Mundt
Browse files

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: default avatarPaul Mundt <lethal@linux-sh.org>
parent 8328a8ba

arch/sh/mm/cache-sh4.c

+15 −0
Original line number Diff line number Diff line
@@ -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: