// SPDX-License-Identifier: GPL-2.0 // Copyright (C) 2005-2017 Andes Technology Corporation #include <linux/bitops.h> #include <linux/cacheinfo.h> #include <linux/cpu.h> static void ci_leaf_init(struct cacheinfo *this_leaf, enum cache_type type, unsigned int level) { char cache_type = (type & CACHE_TYPE_INST ? ICACHE : DCACHE); this_leaf->level = level; this_leaf->type = type; this_leaf->coherency_line_size = CACHE_LINE_SIZE(cache_type); this_leaf->number_of_sets = CACHE_SET(cache_type);; this_leaf->ways_of_associativity = CACHE_WAY(cache_type); this_leaf->size = this_leaf->number_of_sets * this_leaf->coherency_line_size * this_leaf->ways_of_associativity; #if defined(CONFIG_CPU_DCACHE_WRITETHROUGH) this_leaf->attributes = CACHE_WRITE_THROUGH; #else this_leaf->attributes = CACHE_WRITE_BACK; #endif } int init_cache_level(unsigned int cpu) { struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu); /* Only 1 level and I/D cache seperate. */ this_cpu_ci->num_levels = 1; this_cpu_ci->num_leaves = 2; return 0; } int populate_cache_leaves(unsigned int cpu) { unsigned int level, idx; struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu); struct cacheinfo *this_leaf = this_cpu_ci->info_list; for (idx = 0, level = 1; level <= this_cpu_ci->num_levels && idx < this_cpu_ci->num_leaves; idx++, level++) { ci_leaf_init(this_leaf++, CACHE_TYPE_DATA, level); ci_leaf_init(this_leaf++, CACHE_TYPE_INST, level); } return 0; }