/* * Copyright 2010 Tilera Corporation. All Rights Reserved. * *   This program is free software; you can redistribute it and/or *   modify it under the terms of the GNU General Public License *   as published by the Free Software Foundation, version 2. * *   This program is distributed in the hope that it will be useful, but *   WITHOUT ANY WARRANTY; without even the implied warranty of *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or *   NON INFRINGEMENT.  See the GNU General Public License for *   more details. */ #include <linux/smp.h>#include <linux/seq_file.h>#include <linux/threads.h>#include <linux/cpumask.h>#include <linux/timex.h>#include <linux/delay.h>#include <linux/fs.h>#include <linux/proc_fs.h>#include <linux/sysctl.h>#include <linux/hardirq.h>#include <linux/mman.h>#include <asm/pgtable.h>#include <asm/processor.h>#include <asm/sections.h>#include <asm/homecache.h>#include <asm/hardwall.h>#include <arch/chip.h>  /* * Support /proc/cpuinfo */ #define cpu_to_ptr(n) ((void *)((long)(n)+1))#define ptr_to_cpu(p) ((long)(p) - 1) static int show_cpuinfo(struct seq_file *m, void *v){	int n = ptr_to_cpu(v); 	if (n == 0) {		char buf[NR_CPUS*5];		cpulist_scnprintf(buf, sizeof(buf), cpu_online_mask);		seq_printf(m, "cpu count\t: %d\n", num_online_cpus());		seq_printf(m, "cpu list\t: %s\n", buf);		seq_printf(m, "model name\t: %s\n", chip_model);		seq_printf(m, "flags\t\t:\n");  /* nothing for now */		seq_printf(m, "cpu MHz\t\t: %llu.%06llu\n",			   get_clock_rate() / 1000000,			   (get_clock_rate() % 1000000));		seq_printf(m, "bogomips\t: %lu.%02lu\n\n",			   loops_per_jiffy/(500000/HZ),			   (loops_per_jiffy/(5000/HZ)) % 100);	} #ifdef CONFIG_SMP	if (!cpu_online(n))		return 0;#endif 	seq_printf(m, "processor\t: %d\n", n); 	/* Print only num_online_cpus() blank lines total. */	if (cpumask_next(n, cpu_online_mask) < nr_cpu_ids)		seq_printf(m, "\n"); 	return 0;} static void *c_start(struct seq_file *m, loff_t *pos){	return *pos < nr_cpu_ids ? cpu_to_ptr(*pos) : NULL;}static void *c_next(struct seq_file *m, void *v, loff_t *pos){	++*pos;	return c_start(m, pos);}static void c_stop(struct seq_file *m, void *v){}const struct seq_operations cpuinfo_op = {	.start	= c_start,	.next	= c_next,	.stop	= c_stop,	.show	= show_cpuinfo,}; /* * Support /proc/tile directory */ static int __init proc_tile_init(void){	struct proc_dir_entry *root = proc_mkdir("tile", NULL);	if (root == NULL)		return 0; 	proc_tile_hardwall_init(root); 	return 0;} arch_initcall(proc_tile_init); /* * Support /proc/sys/tile directory */ #ifndef __tilegx__  /* FIXME: GX: no support for unaligned access yet */static ctl_table unaligned_subtable[] = {	{		.procname	= "enabled",		.data		= &unaligned_fixup,		.maxlen		= sizeof(int),		.mode		= 0644,		.proc_handler	= &proc_dointvec	},	{		.procname	= "printk",		.data		= &unaligned_printk,		.maxlen		= sizeof(int),		.mode		= 0644,		.proc_handler	= &proc_dointvec	},	{		.procname	= "count",		.data		= &unaligned_fixup_count,		.maxlen		= sizeof(int),		.mode		= 0644,		.proc_handler	= &proc_dointvec	},	{}}; static ctl_table unaligned_table[] = {	{		.procname	= "unaligned_fixup",		.mode		= 0555,		.child		= unaligned_subtable	},	{}};#endif static struct ctl_path tile_path[] = {	{ .procname = "tile" },	{ }}; static int __init proc_sys_tile_init(void){#ifndef __tilegx__  /* FIXME: GX: no support for unaligned access yet */	register_sysctl_paths(tile_path, unaligned_table);#endif	return 0;} arch_initcall(proc_sys_tile_init);