From e8bb8f28233d88f4ad89fdf83d54bbc4a8ee40f2 Mon Sep 17 00:00:00 2001 From: Jiaxun Yang Date: Wed, 30 Dec 2020 11:39:48 +0800 Subject: [PATCH] MIPS: cacheinfo: Add missing VCache Victim Cache is defined by Loongson as per-core unified private Cache. Add this into cacheinfo and make cache levels selfincrement instead of hardcode levels. Signed-off-by: Jiaxun Yang Reviewed-by: Tiezhu Yang Tested-by: Tiezhu Yang Signed-off-by: Thomas Bogendoerfer --- arch/mips/kernel/cacheinfo.c | 34 ++++++++++++++++++++++++++-------- 1 file changed, 26 insertions(+), 8 deletions(-) diff --git a/arch/mips/kernel/cacheinfo.c b/arch/mips/kernel/cacheinfo.c index 47312c5..5f9d0eb 100644 --- a/arch/mips/kernel/cacheinfo.c +++ b/arch/mips/kernel/cacheinfo.c @@ -35,6 +35,11 @@ static int __init_cache_level(unsigned int cpu) leaves += (c->icache.waysize) ? 2 : 1; + if (c->vcache.waysize) { + levels++; + leaves++; + } + if (c->scache.waysize) { levels++; leaves++; @@ -74,25 +79,38 @@ static int __populate_cache_leaves(unsigned int cpu) struct cpuinfo_mips *c = ¤t_cpu_data; struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu); struct cacheinfo *this_leaf = this_cpu_ci->info_list; + int level = 1; if (c->icache.waysize) { - /* L1 caches are per core */ + /* I/D caches are per core */ fill_cpumask_siblings(cpu, &this_leaf->shared_cpu_map); - populate_cache(dcache, this_leaf, 1, CACHE_TYPE_DATA); + populate_cache(dcache, this_leaf, level, CACHE_TYPE_DATA); fill_cpumask_siblings(cpu, &this_leaf->shared_cpu_map); - populate_cache(icache, this_leaf, 1, CACHE_TYPE_INST); + populate_cache(icache, this_leaf, level, CACHE_TYPE_INST); + level++; } else { - populate_cache(dcache, this_leaf, 1, CACHE_TYPE_UNIFIED); + populate_cache(dcache, this_leaf, level, CACHE_TYPE_UNIFIED); + level++; + } + + if (c->vcache.waysize) { + /* Vcache is per core as well */ + fill_cpumask_siblings(cpu, &this_leaf->shared_cpu_map); + populate_cache(vcache, this_leaf, level, CACHE_TYPE_UNIFIED); + level++; } if (c->scache.waysize) { - /* L2 cache is per cluster */ + /* Scache is per cluster */ fill_cpumask_cluster(cpu, &this_leaf->shared_cpu_map); - populate_cache(scache, this_leaf, 2, CACHE_TYPE_UNIFIED); + populate_cache(scache, this_leaf, level, CACHE_TYPE_UNIFIED); + level++; } - if (c->tcache.waysize) - populate_cache(tcache, this_leaf, 3, CACHE_TYPE_UNIFIED); + if (c->tcache.waysize) { + populate_cache(tcache, this_leaf, level, CACHE_TYPE_UNIFIED); + level++; + } this_cpu_ci->cpu_map_populated = true; -- 2.7.4