1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (C) 2005-2017 Andes Technology Corporation
3
4 #include <linux/bitops.h>
5 #include <linux/cacheinfo.h>
6 #include <linux/cpu.h>
7
ci_leaf_init(struct cacheinfo * this_leaf,enum cache_type type,unsigned int level)8 static void ci_leaf_init(struct cacheinfo *this_leaf,
9 enum cache_type type, unsigned int level)
10 {
11 char cache_type = (type & CACHE_TYPE_INST ? ICACHE : DCACHE);
12
13 this_leaf->level = level;
14 this_leaf->type = type;
15 this_leaf->coherency_line_size = CACHE_LINE_SIZE(cache_type);
16 this_leaf->number_of_sets = CACHE_SET(cache_type);
17 this_leaf->ways_of_associativity = CACHE_WAY(cache_type);
18 this_leaf->size = this_leaf->number_of_sets *
19 this_leaf->coherency_line_size * this_leaf->ways_of_associativity;
20 #if defined(CONFIG_CPU_DCACHE_WRITETHROUGH)
21 this_leaf->attributes = CACHE_WRITE_THROUGH;
22 #else
23 this_leaf->attributes = CACHE_WRITE_BACK;
24 #endif
25 }
26
init_cache_level(unsigned int cpu)27 int init_cache_level(unsigned int cpu)
28 {
29 struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
30
31 /* Only 1 level and I/D cache seperate. */
32 this_cpu_ci->num_levels = 1;
33 this_cpu_ci->num_leaves = 2;
34 return 0;
35 }
36
populate_cache_leaves(unsigned int cpu)37 int populate_cache_leaves(unsigned int cpu)
38 {
39 unsigned int level, idx;
40 struct cpu_cacheinfo *this_cpu_ci = get_cpu_cacheinfo(cpu);
41 struct cacheinfo *this_leaf = this_cpu_ci->info_list;
42
43 for (idx = 0, level = 1; level <= this_cpu_ci->num_levels &&
44 idx < this_cpu_ci->num_leaves; idx++, level++) {
45 ci_leaf_init(this_leaf++, CACHE_TYPE_DATA, level);
46 ci_leaf_init(this_leaf++, CACHE_TYPE_INST, level);
47 }
48 return 0;
49 }
50
