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path: root/arch/arm/mach-highbank/system.c
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/*
 * Copyright 2011 Calxeda, Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include <linux/io.h>
#include <asm/smp_scu.h>
#include <asm/proc-fns.h>

#include "core.h"
#include "sysregs.h"

void highbank_restart(char mode, const char *cmd)
{
	if (mode == 'h')
		hignbank_set_pwr_hard_reset();
	else
		hignbank_set_pwr_soft_reset();

	scu_power_mode(scu_base_addr, SCU_PM_POWEROFF);
	cpu_do_idle();
}
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-14 15:05:40 -0500
d warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <stdio.h> #include <stdlib.h> #include <stdarg.h> #include <string.h> #include <time.h> #include <dirent.h> #include <sys/utsname.h> #include <sys/types.h> #include <sys/stat.h> #include "parse.h" #include "config.h" /** * converts priority string to priority * * @param str string that represents a scheduler priority * * @retval priority * @retval SCHED_ERR when the priority doesn't exit **/ enum sched_prio string_to_prio(const char *str) { if (strncasecmp("high", str, strlen(str)) == 0) return SCHED_HIGH; else if (strncasecmp("default", str, strlen(str)) == 0) return SCHED_DEFAULT; else if (strncasecmp("low", str, strlen(str)) == 0) return SCHED_LOW; else return SCHED_ERR; } /** * create and open logfile * * @param dir directory in which the logfile should be created * * @retval logfile on success * @retval NULL when the file can't be created **/ FILE *prepare_output(const char *dirname) { FILE *output = NULL; int len; char *filename, *filename_tmp; struct utsname sysdata; DIR *dir; dir = opendir(dirname); if (dir == NULL) { if (mkdir(dirname, 0755)) { perror("mkdir"); fprintf(stderr, "error: Cannot create dir %s\n", dirname); return NULL; } } len = strlen(dirname) + 30; filename = malloc(sizeof(char) * len); if (!filename) { perror("malloc"); goto out_dir; } if (uname(&sysdata) == 0) { len += strlen(sysdata.nodename) + strlen(sysdata.release); filename_tmp = realloc(filename, sizeof(*filename) * len); if (filename_tmp == NULL) { free(filename); perror("realloc"); goto out_dir; } filename = filename_tmp; snprintf(filename, len - 1, "%s/benchmark_%s_%s_%li.log", dirname, sysdata.nodename, sysdata.release, time(NULL)); } else { snprintf(filename, len - 1, "%s/benchmark_%li.log", dirname, time(NULL)); } dprintf("logfilename: %s\n", filename); output = fopen(filename, "w+"); if (output == NULL) { perror("fopen"); fprintf(stderr, "error: unable to open logfile\n"); goto out; } fprintf(stdout, "Logfile: %s\n", filename); fprintf(output, "#round load sleep performance powersave percentage\n"); out: free(filename); out_dir: closedir(dir); return output; } /** * returns the default config * * @retval default config on success * @retval NULL when the output file can't be created **/ struct config *prepare_default_config() { struct config *config = malloc(sizeof(struct config)); dprintf("loading defaults\n"); config->sleep = 500000; config->load = 500000; config->sleep_step = 500000; config->load_step = 500000; config->cycles = 5; config->rounds = 50; config->cpu = 0; config->prio = SCHED_HIGH; config->verbose = 0; strncpy(config->governor, "ondemand", 8); config->output = stdout; #ifdef DEFAULT_CONFIG_FILE if (prepare_config(DEFAULT_CONFIG_FILE, config)) return NULL; #endif return config; } /** * parses config file and returns the config to the caller * * @param path config file name * * @retval 1 on error * @retval 0 on success **/ int prepare_config(const char *path, struct config *config) { size_t len = 0; char opt[16], val[32], *line = NULL; FILE *configfile; if (config == NULL) { fprintf(stderr, "error: config is NULL\n"); return 1; } configfile = fopen(path, "r"); if (configfile == NULL) { perror("fopen"); fprintf(stderr, "error: unable to read configfile\n"); free(config); return 1; } while (getline(&line, &len, configfile) != -1) { if (line[0] == '#' || line[0] == ' ' || line[0] == '\n') continue; if (sscanf(line, "%14s = %30s", opt, val) < 2) continue; dprintf("parsing: %s -> %s\n", opt, val); if (strcmp("sleep", opt) == 0) sscanf(val, "%li", &config->sleep); else if (strcmp("load", opt) == 0) sscanf(val, "%li", &config->load); else if (strcmp("load_step", opt) == 0) sscanf(val, "%li", &config->load_step); else if (strcmp("sleep_step", opt) == 0) sscanf(val, "%li", &config->sleep_step); else if (strcmp("cycles", opt) == 0) sscanf(val, "%u", &config->cycles); else if (strcmp("rounds", opt) == 0) sscanf(val, "%u", &config->rounds); else if (strcmp("verbose", opt) == 0) sscanf(val, "%u", &config->verbose); else if (strcmp("output", opt) == 0) config->output = prepare_output(val); else if (strcmp("cpu", opt) == 0) sscanf(val, "%u", &config->cpu); else if (strcmp("governor", opt) == 0) { strncpy(config->governor, val, sizeof(config->governor)); config->governor[sizeof(config->governor) - 1] = '\0'; } else if (strcmp("priority", opt) == 0) { if (string_to_prio(val) != SCHED_ERR) config->prio = string_to_prio(val); } } free(line); return 0; }
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-14 15:05:40 -0500