558 lines
14 KiB
C
558 lines
14 KiB
C
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/*
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* Copyright (c) 2014-2019 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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*
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* Samsung debugging code
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/of.h>
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#include <soc/samsung/exynos_debug_freq.h>
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#include <soc/samsung/ect_parser.h>
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#include <soc/samsung/exynos-dm.h>
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#include "cmucal.h"
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extern struct vclk acpm_vclk_list[];
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#define MAX_FREQ_DOMAIN (30)
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struct table_domain {
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unsigned int main_freq;
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unsigned int sub_freq;
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};
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static int secdbg_dm_to_calid[MAX_FREQ_DOMAIN]; /* index: dm-id */
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#define CAL_ID(id) (secdbg_dm_to_calid[(id)])
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static unsigned int secdbg_freq_cur[MAX_FREQ_DOMAIN]; /* index: dss-id */
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#define get_cur_freq(type) (secdbg_freq_cur[(type)])
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#define get_freq_name(type) (acpm_vclk_list[type].name)
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struct secdbg_skew_cache {
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unsigned int freq;
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struct table_domain *freq_table;
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};
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struct secdbg_skew_domain {
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struct list_head list;
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unsigned int master_dm_id;
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unsigned int slave_dm_id;
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unsigned int constraint_type;
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int master_cal_id;
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int slave_cal_id;
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int num_freq;
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const char *ect_name;
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struct secdbg_skew_cache search_cache;
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struct table_domain *freq_table;
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};
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static LIST_HEAD(secdbg_skew_domains);
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struct secdbg_skew_ref {
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int count; /* 0: no refs */
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struct secdbg_skew_domain *refs[MAX_FREQ_DOMAIN];
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};
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static struct secdbg_skew_ref *secdbg_skew_ref_table[MAX_FREQ_DOMAIN]; /* index: dss-id */
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static bool secdbg_freq_initialized;
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static void secdbg_print_skew_domain(struct secdbg_skew_domain *dm)
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{
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struct table_domain *ft = dm->freq_table;
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pr_info("[%s]%s-%s: %d entries\n",
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dm->ect_name, get_freq_name(dm->master_cal_id),
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get_freq_name(dm->slave_cal_id), dm->num_freq);
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while (ft && ft->main_freq) {
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pr_debug(" %u %u\n", ft->main_freq, ft->sub_freq);
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ft++;
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}
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}
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static void secdbg_print_all_skew_domain_info(void)
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{
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struct secdbg_skew_domain *dm;
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list_for_each_entry(dm, &secdbg_skew_domains, list)
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secdbg_print_skew_domain(dm);
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}
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static void secdbg_freq_set(int type, unsigned int freq)
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{
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secdbg_freq_cur[type] = freq;
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pr_debug("%s: type: %d, freq: %d\n", __func__, type, freq);
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}
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static void secdbg_freq_ac_print(unsigned int type, unsigned int main_val,
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unsigned int sub_val, unsigned int table_sub,
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struct secdbg_skew_domain *skew_domain)
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{
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const char *freq_type = get_freq_name(type);
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const char *main_type = get_freq_name(skew_domain->master_cal_id);
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const char *sub_type = get_freq_name(skew_domain->slave_cal_id);
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/* e.g. SKEW (mif): big 2106 mif 1014 < 1539 @ BIG-MIF table */
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pr_info("SKEW (%s): %s %d %s %d < %d @ %s-%s table\n",
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freq_type, main_type, main_val/1000,
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sub_type, sub_val/1000, table_sub,
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get_freq_name(skew_domain->master_cal_id),
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get_freq_name(skew_domain->slave_cal_id));
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BUG();
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}
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static struct table_domain *secdbg_get_suitable_freq_lb(unsigned int freq, int tsize, struct table_domain *table)
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{
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struct table_domain *islot;
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struct table_domain *eslot = table + tsize;
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for (islot = table; islot < eslot; islot++) {
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pr_debug("%s: [%d] freq: %u, table_main: %d, sub_val: %d\n",
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__func__, islot - table, freq, islot->main_freq, islot->sub_freq);
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/* table must be descending order */
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if (freq >= islot->main_freq)
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return islot;
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}
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return NULL;
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}
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static void secdbg_freq_main_sub(int type, struct secdbg_skew_domain *domain)
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{
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unsigned int master_freq = get_cur_freq(domain->master_cal_id);
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unsigned int slave_freq = get_cur_freq(domain->slave_cal_id);
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struct table_domain *freq_constraint;
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if (!master_freq || !slave_freq) {
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pr_debug("%s: no cur freq: m_%d, s_%d\n", __func__, master_freq, slave_freq);
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return;
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}
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if (master_freq == domain->search_cache.freq) {
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freq_constraint = domain->search_cache.freq_table;
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pr_debug("%s: (%d)%u cache found\n", __func__, domain->master_cal_id, master_freq);
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} else {
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freq_constraint = secdbg_get_suitable_freq_lb(master_freq, domain->num_freq, domain->freq_table);
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if (!freq_constraint) {
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pr_err("%s: no constraint: (%d)%uKhz-(%d)\n", __func__, domain->master_cal_id, master_freq, domain->slave_cal_id);
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return;
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} else {
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domain->search_cache.freq = master_freq;
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domain->search_cache.freq_table = freq_constraint;
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}
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}
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pr_debug("%s: %d: main_val: %u, table_main: %u, sub_val: %u, table_sub: %u\n",
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__func__, type, master_freq, freq_constraint->main_freq, slave_freq, freq_constraint->sub_freq);
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if (slave_freq < freq_constraint->sub_freq)
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secdbg_freq_ac_print(type, master_freq, slave_freq, freq_constraint->sub_freq, domain);
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}
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static void secdbg_freq_judge_skew(int type)
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{
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int i;
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int count = secdbg_skew_ref_table[type]->count;
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struct secdbg_skew_domain *domain;
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for (i = 0; i < count; i++) {
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domain = secdbg_skew_ref_table[type]->refs[i];
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secdbg_freq_main_sub(type, domain);
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}
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}
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void secdbg_freq_check(int type, unsigned long freq)
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{
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if (!secdbg_freq_initialized) {
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pr_err_once("%s: not initialized, type(%d)\n", type);
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return;
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}
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if (type < 0 || type >= MAX_FREQ_DOMAIN) {
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pr_err("%s: type(%d) not in range\n", type);
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return;
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}
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/* skip uninterested freqs */
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if (!secdbg_skew_ref_table[type])
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return;
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pr_debug("%s: start\n", __func__);
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/* set freq. domain and target freq */
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secdbg_freq_set(type, (unsigned int)freq);
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/* judge skew and ac print */
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secdbg_freq_judge_skew(type);
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}
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static void secdbg_set_domain_to_ref(struct secdbg_skew_domain *domain, struct secdbg_skew_ref **skew_ref)
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{
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struct secdbg_skew_ref *skref;
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if (!*skew_ref) {
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skref = kzalloc(sizeof(struct secdbg_skew_ref), GFP_KERNEL);
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if (!skref)
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return;
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skref->count = 0;
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*skew_ref = skref;
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}
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pr_err("%s %d\n", __func__, __LINE__);
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pr_err("%s %d, %d\n", __func__, __LINE__, (*skew_ref)->count);
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(*skew_ref)->refs[(*skew_ref)->count] = domain;
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pr_err("%s %d\n", __func__, __LINE__);
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(*skew_ref)->count++;
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}
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static void secdbg_freq_create_ref_table(void)
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{
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struct secdbg_skew_domain *domain;
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list_for_each_entry(domain, &secdbg_skew_domains, list) {
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if (!domain->num_freq) {
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pr_err("%s: null table %s", __func__, domain->ect_name);
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continue;
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}
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pr_err("%s %d\n", __func__, __LINE__);
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pr_err("%s %d, %u\n", __func__, __LINE__, domain->master_cal_id);
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secdbg_set_domain_to_ref(domain, &secdbg_skew_ref_table[domain->master_cal_id]);
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pr_err("%s %d\n", __func__, __LINE__);
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secdbg_set_domain_to_ref(domain, &secdbg_skew_ref_table[domain->slave_cal_id]);
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pr_err("%s %d\n", __func__, __LINE__);
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}
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}
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static void secdbg_update_cal_id(struct secdbg_skew_domain *domain)
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{
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domain->master_cal_id = CAL_ID(domain->master_dm_id);
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domain->slave_cal_id = CAL_ID(domain->slave_dm_id);
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}
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static int secdbg_devfreq_init_domain(struct secdbg_skew_domain *domain,
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struct device_node *dn,
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struct device_node *child)
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{
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int ret;
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ret = of_property_read_u32(dn, "dm-index", &domain->master_dm_id);
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if (ret) {
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pr_err("%s: no dm-index\n", __func__, ret);
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return ret;
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}
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if (of_property_read_string(child, "master_dm_name", &domain->ect_name)) {
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ret = of_property_read_string(dn, "devfreq_domain_name", &domain->ect_name);
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if (ret) {
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pr_err("%s: no devfreq_domain_name\n", __func__, ret);
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return ret;
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}
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}
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ret = of_property_read_u32(child, "constraint_dm_type", &domain->slave_dm_id);
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if (ret) {
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pr_err("%s: no constraint_dm_type\n", __func__, ret);
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return ret;
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}
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ret = of_property_read_u32(child, "constraint_type", &domain->constraint_type);
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if (ret) {
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pr_err("%s: no constraint_type\n", __func__, ret);
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return ret;
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}
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return 0;
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}
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static int secdbg_cpufreq_init_domain(struct secdbg_skew_domain *domain,
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struct device_node *dn)
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{
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int ret;
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ret = of_property_read_u32(dn, "const-type", &domain->constraint_type);
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if (ret) {
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pr_err("%s: [%u] no const-type(%d)\n", __func__, domain->master_dm_id, ret);
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return ret;
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}
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ret = of_property_read_u32(dn, "dm-type", &domain->slave_dm_id);
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if (ret) {
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pr_err("%s: [%u] no dm-type(%d)\n", __func__, domain->master_dm_id, ret);
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return ret;
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}
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ret = of_property_read_string(dn, "ect-name", &domain->ect_name);
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if (ret) {
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pr_err("%s: [%u] no ect-name(%d)\n", __func__, domain->master_dm_id, ret);
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return ret;
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}
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return 0;
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}
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static void secdbg_free_skew_domain(struct secdbg_skew_domain *domain)
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{
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kfree(domain);
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}
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static struct secdbg_skew_domain * secdbg_alloc_skew_domain(void)
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{
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struct secdbg_skew_domain *domain;
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domain = kzalloc(sizeof(struct secdbg_skew_domain), GFP_KERNEL);
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return domain;
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}
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static bool __cpufreq_has_ect_constraint(struct device_node *dn)
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{
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if (of_property_read_bool(dn, "guidance"))
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return true;
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else
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return false;
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}
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static int secdbg_parse_id(struct device_node *np)
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{
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int ret;
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unsigned int dm_index, cal_id;
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ret = of_property_read_u32(np, "dm-index", &dm_index);
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if (ret) {
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pr_err("%s: no dm-index property (%d)\n", __func__, ret);
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return ret;
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}
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if (dm_index >= MAX_FREQ_DOMAIN) {
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pr_err("%s: too big id (%u)\n", __func__, dm_index);
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return -1;
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}
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ret = of_property_read_u32(np, "cal_id", &cal_id);
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if (ret) {
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pr_err("%s: no dm-type property (%d)\n", __func__, ret);
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return ret;
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}
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cal_id = GET_IDX(cal_id);
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if (cal_id >= MAX_FREQ_DOMAIN) {
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pr_err("%s: too big id (%u)\n", __func__, cal_id);
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return -1;
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}
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secdbg_dm_to_calid[dm_index] = cal_id;
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return 0;
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}
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|
|
||
|
|
static void secdbg_freq_dt_init(void)
|
||
|
|
{
|
||
|
|
struct device_node *np, *child_np, *domain_np = NULL;
|
||
|
|
struct device_node *dn, *dp, *root, *child;
|
||
|
|
struct secdbg_skew_domain *domain;
|
||
|
|
unsigned int dm_id;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
int cnt;
|
||
|
|
|
||
|
|
np = of_find_compatible_node(NULL, NULL, "samsung,exynos-dvfs-manager");
|
||
|
|
|
||
|
|
domain_np = of_get_child_by_name(np, "dm_domains");
|
||
|
|
if (!domain_np) {
|
||
|
|
pr_err("[%s] can not found dm_domains\n", __func__);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
cnt = of_get_child_count(domain_np);
|
||
|
|
if (!cnt) {
|
||
|
|
pr_err("[%s] dm_domains child node count is 0\n", __func__);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
for_each_child_of_node(domain_np, child_np)
|
||
|
|
secdbg_parse_id(child_np);
|
||
|
|
|
||
|
|
/* cpufreq */
|
||
|
|
for_each_node_by_type(dn, "cpufreq-domain") {
|
||
|
|
ret = of_property_read_u32(dn, "dm-type", &dm_id);
|
||
|
|
if (ret)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
root = of_get_child_by_name(dn, "dm-constraints");
|
||
|
|
for_each_child_of_node(root, child) {
|
||
|
|
if (!__cpufreq_has_ect_constraint(child))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
domain = secdbg_alloc_skew_domain();
|
||
|
|
if (!domain) {
|
||
|
|
pr_err("%s: failed to allocate skew domain[%s]\n", __func__, child->name);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
//domain->dn = dn;
|
||
|
|
domain->master_dm_id = dm_id;
|
||
|
|
ret = secdbg_cpufreq_init_domain(domain, child);
|
||
|
|
if (ret) {
|
||
|
|
pr_err("%s: failed to initialize skew domain[%s]\n", __func__, child->name);
|
||
|
|
secdbg_free_skew_domain(domain);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
list_add_tail(&domain->list, &secdbg_skew_domains);
|
||
|
|
//secdbg_print_domain_info(domain);
|
||
|
|
}
|
||
|
|
of_node_put(root);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* devfreq */
|
||
|
|
dp = of_find_compatible_node(NULL, NULL, "samsung,exynos-devfreq-root");
|
||
|
|
if (!dp) {
|
||
|
|
pr_notice("%s: no devfreq dt\n");
|
||
|
|
goto out;
|
||
|
|
}
|
||
|
|
|
||
|
|
for_each_child_of_node(dp, dn) {
|
||
|
|
if (!of_device_is_compatible(dn, "samsung,exynos-devfreq"))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
root = of_get_child_by_name(dn, "skew");
|
||
|
|
if (!root)
|
||
|
|
continue;
|
||
|
|
|
||
|
|
for_each_available_child_of_node(root, child) {
|
||
|
|
domain = secdbg_alloc_skew_domain();
|
||
|
|
if (!domain) {
|
||
|
|
pr_err("%s: failed to allocate skew domain[%s]\n", __func__, child->name);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
//
|
||
|
|
//domain->dn = dn;
|
||
|
|
domain->master_dm_id = dm_id;
|
||
|
|
|
||
|
|
ret = secdbg_devfreq_init_domain(domain, dn, child);
|
||
|
|
if (ret) {
|
||
|
|
pr_err("%s: failed to initialize skew domain[%s]\n", __func__, child->name);
|
||
|
|
secdbg_free_skew_domain(domain);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
list_add_tail(&domain->list, &secdbg_skew_domains);
|
||
|
|
//secdbg_print_domain_info(domain);
|
||
|
|
}
|
||
|
|
|
||
|
|
of_node_put(root);
|
||
|
|
}
|
||
|
|
|
||
|
|
of_node_put(dp);
|
||
|
|
out:
|
||
|
|
list_for_each_entry(domain, &secdbg_skew_domains, list)
|
||
|
|
secdbg_update_cal_id(domain);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int secdbg_freq_mini_table(struct ect_minlock_domain *ect_domain, struct table_domain table[])
|
||
|
|
{
|
||
|
|
unsigned int i, j, k;
|
||
|
|
|
||
|
|
for (i = 0, j = 0; j < ect_domain->num_of_level - 1; j++) {
|
||
|
|
pr_debug("secdbg_freq: %s: i:%d, %d %d\n", ect_domain->domain_name, i, ect_domain->level[j].main_frequencies, ect_domain->level[j].sub_frequencies);
|
||
|
|
if (ect_domain->level[j].sub_frequencies != ect_domain->level[j+1].sub_frequencies) {
|
||
|
|
table[i].main_freq = ect_domain->level[j].main_frequencies;
|
||
|
|
table[i].sub_freq = ect_domain->level[j].sub_frequencies;
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
pr_debug("secdbg_freq: %s: i:%d, %d %d\n", ect_domain->domain_name, i, ect_domain->level[j].main_frequencies, ect_domain->level[j].sub_frequencies);
|
||
|
|
table[i].main_freq = ect_domain->level[ect_domain->num_of_level - 1].main_frequencies;
|
||
|
|
table[i].sub_freq = ect_domain->level[ect_domain->num_of_level - 1].sub_frequencies;
|
||
|
|
i++;
|
||
|
|
|
||
|
|
for (k = 0; k < i; k++)
|
||
|
|
pr_info("secdbg: %s: %d %d\n", ect_domain->domain_name, table[k].main_freq, table[k].sub_freq);
|
||
|
|
|
||
|
|
pr_err("%s %d\n", __func__, __LINE__);
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void secdbg_freq_gen_table(struct secdbg_skew_domain *skew_domain, struct ect_minlock_domain *ect_domain)
|
||
|
|
{
|
||
|
|
pr_err("%s %d\n", __func__, __LINE__);
|
||
|
|
skew_domain->freq_table = kcalloc(ect_domain->num_of_level + 1,
|
||
|
|
sizeof(struct table_domain),
|
||
|
|
GFP_KERNEL);
|
||
|
|
pr_err("%s %d\n", __func__, __LINE__);
|
||
|
|
if (!skew_domain->freq_table) {
|
||
|
|
pr_err("%s: [%d] failed to alloc table\n", __func__, skew_domain->master_dm_id);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
pr_err("%s %d\n", __func__, __LINE__);
|
||
|
|
|
||
|
|
skew_domain->num_freq = secdbg_freq_mini_table(ect_domain, skew_domain->freq_table);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int secdbg_init_constraint_ect(struct secdbg_skew_domain *skew_domain)
|
||
|
|
{
|
||
|
|
void *min_block;
|
||
|
|
struct ect_minlock_domain *ect_domain;
|
||
|
|
|
||
|
|
/* get ect domain1, domain2 */
|
||
|
|
min_block = ect_get_block(BLOCK_MINLOCK);
|
||
|
|
if (!min_block) {
|
||
|
|
pr_err("%s: no BLOCK_MINLOCK\n", __func__);
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Actually, ect_minlock_get_domain() doesn't change a domain_name. */
|
||
|
|
ect_domain = ect_minlock_get_domain(min_block, (char *)skew_domain->ect_name);
|
||
|
|
if (!ect_domain) {
|
||
|
|
pr_err("%s: no ect domain for %s\n", __func__, skew_domain->ect_name);
|
||
|
|
return -ENODEV;
|
||
|
|
}
|
||
|
|
|
||
|
|
secdbg_freq_gen_table(skew_domain, ect_domain);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void secdbg_freq_ect_data_init(void)
|
||
|
|
{
|
||
|
|
struct secdbg_skew_domain *domain, *tmp;
|
||
|
|
|
||
|
|
list_for_each_entry_safe(domain, tmp, &secdbg_skew_domains, list) {
|
||
|
|
pr_err("%s %d\n", __func__, __LINE__);
|
||
|
|
if (secdbg_init_constraint_ect(domain)) {
|
||
|
|
/* we don't remove domain failed for debug */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
pr_err("%s %d\n", __func__, __LINE__);
|
||
|
|
}
|
||
|
|
|
||
|
|
int secdbg_freq_init(void)
|
||
|
|
{
|
||
|
|
secdbg_freq_dt_init();
|
||
|
|
|
||
|
|
secdbg_freq_ect_data_init();
|
||
|
|
|
||
|
|
secdbg_freq_create_ref_table();
|
||
|
|
|
||
|
|
secdbg_freq_initialized = true;
|
||
|
|
|
||
|
|
secdbg_print_all_skew_domain_info();
|
||
|
|
|
||
|
|
pr_info("%s: initialized\n", __func__);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
MODULE_LICENSE("GPL");
|