minix/servers/procfs/root.c
Tomas Hruby 3c6274b8be /proc/cpuinfo
- when /proc/cpuinfo is read procfs retrievs information about cpus
  from the kernel, formats it and prints it
2010-10-26 21:08:00 +00:00

133 lines
3.7 KiB
C

/* ProcFS - root.c - by Alen Stojanov and David van Moolenbroek */
#include "inc.h"
#include <machine/pci.h>
#include "cpuinfo.h"
FORWARD _PROTOTYPE( void root_hz, (void) );
FORWARD _PROTOTYPE( void root_uptime, (void) );
FORWARD _PROTOTYPE( void root_loadavg, (void) );
FORWARD _PROTOTYPE( void root_kinfo, (void) );
FORWARD _PROTOTYPE( void root_meminfo, (void) );
FORWARD _PROTOTYPE( void root_pci, (void) );
struct file root_files[] = {
{ "hz", REG_ALL_MODE, (data_t) root_hz },
{ "uptime", REG_ALL_MODE, (data_t) root_uptime },
{ "loadavg", REG_ALL_MODE, (data_t) root_loadavg },
{ "kinfo", REG_ALL_MODE, (data_t) root_kinfo },
{ "meminfo", REG_ALL_MODE, (data_t) root_meminfo },
{ "pci", REG_ALL_MODE, (data_t) root_pci },
{ "cpuinfo", REG_ALL_MODE, (data_t) root_cpuinfo },
{ NULL, 0, NULL }
};
/*===========================================================================*
* root_hz *
*===========================================================================*/
PRIVATE void root_hz(void)
{
/* Print the system clock frequency.
*/
buf_printf("%lu\n", (long) sys_hz());
}
/*===========================================================================*
* root_loadavg *
*===========================================================================*/
PRIVATE void root_loadavg(void)
{
/* Print load averages.
*/
double avg[3];
if (procfs_getloadavg(avg, 3) != 3)
return;
buf_printf("%.2lf %.2lf %.2lf\n", avg[0], avg[1], avg[2]);
}
/*===========================================================================*
* root_uptime *
*===========================================================================*/
PRIVATE void root_uptime(void)
{
/* Print the current uptime.
*/
clock_t ticks;
if (getuptime(&ticks) != OK)
return;
buf_printf("%.2lf\n", (double) ticks / (double) sys_hz());
}
/*===========================================================================*
* root_kinfo *
*===========================================================================*/
PRIVATE void root_kinfo(void)
{
/* Print general kernel information.
*/
struct kinfo kinfo;
if (sys_getkinfo(&kinfo) != OK)
return;
buf_printf("%u %u\n", kinfo.nr_procs, kinfo.nr_tasks);
}
/*===========================================================================*
* root_meminfo *
*===========================================================================*/
PRIVATE void root_meminfo(void)
{
/* Print general memory information.
*/
struct vm_stats_info vsi;
if (vm_info_stats(&vsi) != OK)
return;
buf_printf("%u %lu %lu %lu %lu\n", vsi.vsi_pagesize,
vsi.vsi_total, vsi.vsi_free, vsi.vsi_largest, vsi.vsi_cached);
}
/*===========================================================================*
* root_pci *
*===========================================================================*/
PRIVATE void root_pci(void)
{
/* Print information about PCI devices present in the system.
*/
u16_t vid, did;
u8_t bcr, scr, pifr;
char *slot_name, *dev_name;
int r, devind;
static int first = TRUE;
/* This should be taken care of behind the scenes by the PCI lib. */
if (first) {
pci_init();
first = FALSE;
}
/* Iterate over all devices, printing info for each of them. */
r = pci_first_dev(&devind, &vid, &did);
while (r == 1) {
slot_name = pci_slot_name(devind);
dev_name = pci_dev_name(vid, did);
bcr = pci_attr_r8(devind, PCI_BCR);
scr = pci_attr_r8(devind, PCI_SCR);
pifr = pci_attr_r8(devind, PCI_PIFR);
buf_printf("%s %x/%x/%x %04X:%04X %s\n",
slot_name ? slot_name : "-",
bcr, scr, pifr, vid, did,
dev_name ? dev_name : "");
r = pci_next_dev(&devind, &vid, &did);
}
}