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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>
This commit is contained in:
Paul Mundt 2007-09-24 17:00:45 +09:00
parent 8328a8ba92
commit ab27f62002
1 changed files with 15 additions and 0 deletions
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15
arch/sh/mm/cache-sh4.c
View File

@ -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: