// SPDX-License-Identifier: GPL-2.0-only/* * MIPS cacheinfo support */#include <linux/cacheinfo.h> /* Populates leaf and increments to next leaf */#define populate_cache(cache, leaf, c_level, c_type)		\do {								\	leaf->type = c_type;					\	leaf->level = c_level;					\	leaf->coherency_line_size = c->cache.linesz;		\	leaf->number_of_sets = c->cache.sets;			\	leaf->ways_of_associativity = c->cache.ways;		\	leaf->size = c->cache.linesz * c->cache.sets *		\		c->cache.ways;					\	leaf++;							\} while (0) int init_cache_level(unsigned int cpu){	struct cpuinfo_mips *c = &current_cpu_data;	struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);	int levels = 0, leaves = 0; 	/*	 * If Dcache is not set, we assume the cache structures	 * are not properly initialized.	 */	if (c->dcache.waysize)		levels += 1;	else		return -ENOENT;  	leaves += (c->icache.waysize) ? 2 : 1; 	if (c->vcache.waysize) {		levels++;		leaves++;	} 	if (c->scache.waysize) {		levels++;		leaves++;	} 	if (c->tcache.waysize) {		levels++;		leaves++;	} 	this_cpu_ci->num_levels = levels;	this_cpu_ci->num_leaves = leaves;	return 0;} static void fill_cpumask_siblings(int cpu, cpumask_t *cpu_map){	int cpu1; 	for_each_possible_cpu(cpu1)		if (cpus_are_siblings(cpu, cpu1))			cpumask_set_cpu(cpu1, cpu_map);} static void fill_cpumask_cluster(int cpu, cpumask_t *cpu_map){	int cpu1;	int cluster = cpu_cluster(&cpu_data[cpu]); 	for_each_possible_cpu(cpu1)		if (cpu_cluster(&cpu_data[cpu1]) == cluster)			cpumask_set_cpu(cpu1, cpu_map);} int populate_cache_leaves(unsigned int cpu){	struct cpuinfo_mips *c = &current_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) {		/* I/D caches are per core */		fill_cpumask_siblings(cpu, &this_leaf->shared_cpu_map);		populate_cache(dcache, this_leaf, level, CACHE_TYPE_DATA);		fill_cpumask_siblings(cpu, &this_leaf->shared_cpu_map);		populate_cache(icache, this_leaf, level, CACHE_TYPE_INST);		level++;	} else {		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) {		/* Scache is per cluster */		fill_cpumask_cluster(cpu, &this_leaf->shared_cpu_map);		populate_cache(scache, this_leaf, level, CACHE_TYPE_UNIFIED);		level++;	} 	if (c->tcache.waysize)		populate_cache(tcache, this_leaf, level, CACHE_TYPE_UNIFIED); 	this_cpu_ci->cpu_map_populated = true; 	return 0;}