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