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author | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2015-03-25 10:03:07 +0100 |
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committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2015-03-25 10:03:07 +0100 |
commit | 3527a86b7ae17c949307d00e1eb7087604bca1b4 (patch) | |
tree | 8e8eab905e7e73a3bf2c4d47abd356166533c9db /arch/s390/kernel/cache.c | |
parent | UBI: fix missing brace control flow (diff) | |
parent | Linux 4.0-rc5 (diff) | |
download | linux-3527a86b7ae17c949307d00e1eb7087604bca1b4.tar.xz linux-3527a86b7ae17c949307d00e1eb7087604bca1b4.zip |
Merge tag 'v4.0-rc5' into linux-next
Merge the upstream -rc5 tag because we needed a more up-to-date base our
further work.
Diffstat (limited to 'arch/s390/kernel/cache.c')
-rw-r--r-- | arch/s390/kernel/cache.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c index 632fa06ea162..0969d113b3d6 100644 --- a/arch/s390/kernel/cache.c +++ b/arch/s390/kernel/cache.c @@ -91,12 +91,9 @@ static inline enum cache_type get_cache_type(struct cache_info *ci, int level) { if (level >= CACHE_MAX_LEVEL) return CACHE_TYPE_NOCACHE; - ci += level; - if (ci->scope != CACHE_SCOPE_SHARED && ci->scope != CACHE_SCOPE_PRIVATE) return CACHE_TYPE_NOCACHE; - return cache_type_map[ci->type]; } @@ -111,23 +108,19 @@ static inline unsigned long ecag(int ai, int li, int ti) } static void ci_leaf_init(struct cacheinfo *this_leaf, int private, - enum cache_type type, unsigned int level) + enum cache_type type, unsigned int level, int cpu) { int ti, num_sets; - int cpu = smp_processor_id(); if (type == CACHE_TYPE_INST) ti = CACHE_TI_INSTRUCTION; else ti = CACHE_TI_UNIFIED; - this_leaf->level = level + 1; this_leaf->type = type; this_leaf->coherency_line_size = ecag(EXTRACT_LINE_SIZE, level, ti); - this_leaf->ways_of_associativity = ecag(EXTRACT_ASSOCIATIVITY, - level, ti); + this_leaf->ways_of_associativity = ecag(EXTRACT_ASSOCIATIVITY, level, ti); this_leaf->size = ecag(EXTRACT_SIZE, level, ti); - num_sets = this_leaf->size / this_leaf->coherency_line_size; num_sets /= this_leaf->ways_of_associativity; this_leaf->number_of_sets = num_sets; @@ -145,7 +138,6 @@ int init_cache_level(unsigned int cpu) if (!this_cpu_ci) return -EINVAL; - ct.raw = ecag(EXTRACT_TOPOLOGY, 0, 0); do { ctype = get_cache_type(&ct.ci[0], level); @@ -154,34 +146,31 @@ int init_cache_level(unsigned int cpu) /* Separate instruction and data caches */ leaves += (ctype == CACHE_TYPE_SEPARATE) ? 2 : 1; } while (++level < CACHE_MAX_LEVEL); - this_cpu_ci->num_levels = level; this_cpu_ci->num_leaves = leaves; - return 0; } int populate_cache_leaves(unsigned int cpu) { + struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu); + struct cacheinfo *this_leaf = this_cpu_ci->info_list; unsigned int level, idx, pvt; union cache_topology ct; enum cache_type ctype; - struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu); - struct cacheinfo *this_leaf = this_cpu_ci->info_list; ct.raw = ecag(EXTRACT_TOPOLOGY, 0, 0); for (idx = 0, level = 0; level < this_cpu_ci->num_levels && idx < this_cpu_ci->num_leaves; idx++, level++) { if (!this_leaf) return -EINVAL; - pvt = (ct.ci[level].scope == CACHE_SCOPE_PRIVATE) ? 1 : 0; ctype = get_cache_type(&ct.ci[0], level); if (ctype == CACHE_TYPE_SEPARATE) { - ci_leaf_init(this_leaf++, pvt, CACHE_TYPE_DATA, level); - ci_leaf_init(this_leaf++, pvt, CACHE_TYPE_INST, level); + ci_leaf_init(this_leaf++, pvt, CACHE_TYPE_DATA, level, cpu); + ci_leaf_init(this_leaf++, pvt, CACHE_TYPE_INST, level, cpu); } else { - ci_leaf_init(this_leaf++, pvt, ctype, level); + ci_leaf_init(this_leaf++, pvt, ctype, level, cpu); } } return 0; |