Viewing file:  sysinfo.c (8.68 KB) -rw-r--r--
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/*
* drivers/s390/sysinfo.c
*
* Copyright (C) 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Ulrich Weigand (Ulrich.Weigand@de.ibm.com)
*/
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/proc_fs.h>
#include <linux/init.h>
#include <asm/ebcdic.h>
struct sysinfo_1_1_1
{
char reserved_0[32];
char manufacturer[16];
char type[4];
char reserved_1[12];
char model[16];
char sequence[16];
char plant[4];
};
struct sysinfo_1_2_1
{
char reserved_0[80];
char sequence[16];
char plant[4];
char reserved_1[2];
unsigned short cpu_address;
};
struct sysinfo_1_2_2
{
char reserved_0[32];
unsigned int capability;
unsigned short cpus_total;
unsigned short cpus_configured;
unsigned short cpus_standby;
unsigned short cpus_reserved;
unsigned short adjustment[0];
};
struct sysinfo_2_2_1
{
char reserved_0[80];
char sequence[16];
char plant[4];
unsigned short cpu_id;
unsigned short cpu_address;
};
struct sysinfo_2_2_2
{
char reserved_0[32];
unsigned short lpar_number;
char reserved_1;
unsigned char characteristics;
#define LPAR_CHAR_DEDICATED (1 << 7)
#define LPAR_CHAR_SHARED (1 << 6)
#define LPAR_CHAR_LIMITED (1 << 5)
unsigned short cpus_total;
unsigned short cpus_configured;
unsigned short cpus_standby;
unsigned short cpus_reserved;
char name[8];
unsigned int caf;
char reserved_2[16];
unsigned short cpus_dedicated;
unsigned short cpus_shared;
};
struct sysinfo_3_2_2
{
char reserved_0[31];
unsigned char count;
struct
{
char reserved_0[4];
unsigned short cpus_total;
unsigned short cpus_configured;
unsigned short cpus_standby;
unsigned short cpus_reserved;
char name[8];
unsigned int caf;
char cpi[16];
char reserved_1[24];
} vm[8];
};
union s390_sysinfo
{
struct sysinfo_1_1_1 sysinfo_1_1_1;
struct sysinfo_1_2_1 sysinfo_1_2_1;
struct sysinfo_1_2_2 sysinfo_1_2_2;
struct sysinfo_2_2_1 sysinfo_2_2_1;
struct sysinfo_2_2_2 sysinfo_2_2_2;
struct sysinfo_3_2_2 sysinfo_3_2_2;
};
static inline int stsi (void *sysinfo,
int fc, int sel1, int sel2)
{
int cc, retv;
#ifndef CONFIG_ARCH_S390X
__asm__ __volatile__ ( "lr\t0,%2\n"
"\tlr\t1,%3\n"
"\tstsi\t0(%4)\n"
"0:\tipm\t%0\n"
"\tsrl\t%0,28\n"
"1:lr\t%1,0\n"
".section .fixup,\"ax\"\n"
"2:\tlhi\t%0,3\n"
"\tbras\t1,3f\n"
"\t.long 1b\n"
"3:\tl\t1,0(1)\n"
"\tbr\t1\n"
".previous\n"
".section __ex_table,\"a\"\n"
"\t.align 4\n"
"\t.long 0b,2b\n"
".previous\n"
: "=d" (cc), "=d" (retv)
: "d" ((fc << 28) | sel1), "d" (sel2), "a" (sysinfo)
: "cc", "memory", "0", "1" );
#else
__asm__ __volatile__ ( "lr\t0,%2\n"
"lr\t1,%3\n"
"\tstsi\t0(%4)\n"
"0:\tipm\t%0\n"
"\tsrl\t%0,28\n"
"1:lr\t%1,0\n"
".section .fixup,\"ax\"\n"
"2:\tlhi\t%0,3\n"
"\tjg\t1b\n"
".previous\n"
".section __ex_table,\"a\"\n"
"\t.align 8\n"
"\t.quad 0b,2b\n"
".previous\n"
: "=d" (cc), "=d" (retv)
: "d" ((fc << 28) | sel1), "d" (sel2), "a" (sysinfo)
: "cc", "memory", "0", "1" );
#endif
return cc? -1 : retv;
}
static inline int stsi_0 (void)
{
int rc = stsi (NULL, 0, 0, 0);
return rc == -1 ? rc : (((unsigned int)rc) >> 28);
}
static inline int stsi_1_1_1 (struct sysinfo_1_1_1 *info)
{
int rc = stsi (info, 1, 1, 1);
if (rc != -1)
{
EBCASC (info->manufacturer, sizeof(info->manufacturer));
EBCASC (info->type, sizeof(info->type));
EBCASC (info->model, sizeof(info->model));
EBCASC (info->sequence, sizeof(info->sequence));
EBCASC (info->plant, sizeof(info->plant));
}
return rc == -1 ? rc : 0;
}
static inline int stsi_1_2_1 (struct sysinfo_1_2_1 *info)
{
int rc = stsi (info, 1, 2, 1);
if (rc != -1)
{
EBCASC (info->sequence, sizeof(info->sequence));
EBCASC (info->plant, sizeof(info->plant));
}
return rc == -1 ? rc : 0;
}
static inline int stsi_1_2_2 (struct sysinfo_1_2_2 *info)
{
int rc = stsi (info, 1, 2, 2);
return rc == -1 ? rc : 0;
}
static inline int stsi_2_2_1 (struct sysinfo_2_2_1 *info)
{
int rc = stsi (info, 2, 2, 1);
if (rc != -1)
{
EBCASC (info->sequence, sizeof(info->sequence));
EBCASC (info->plant, sizeof(info->plant));
}
return rc == -1 ? rc : 0;
}
static inline int stsi_2_2_2 (struct sysinfo_2_2_2 *info)
{
int rc = stsi (info, 2, 2, 2);
if (rc != -1)
{
EBCASC (info->name, sizeof(info->name));
}
return rc == -1 ? rc : 0;
}
static inline int stsi_3_2_2 (struct sysinfo_3_2_2 *info)
{
int rc = stsi (info, 3, 2, 2);
if (rc != -1)
{
int i;
for (i = 0; i < info->count; i++)
{
EBCASC (info->vm[i].name, sizeof(info->vm[i].name));
EBCASC (info->vm[i].cpi, sizeof(info->vm[i].cpi));
}
}
return rc == -1 ? rc : 0;
}
static int proc_read_sysinfo(char *page, char **start,
off_t off, int count,
int *eof, void *data)
{
unsigned long info_page = get_free_page (GFP_KERNEL);
union s390_sysinfo *info = (union s390_sysinfo *) info_page;
int len = 0;
int level;
int i;
if (!info)
return 0;
level = stsi_0 ();
if (level < 1)
goto out;
if (stsi_1_1_1 (&info->sysinfo_1_1_1))
goto out;
len += sprintf (page+len, "Manufacturer: %-16.16s\n",
info->sysinfo_1_1_1.manufacturer);
len += sprintf (page+len, "Type: %-4.4s\n",
info->sysinfo_1_1_1.type);
len += sprintf (page+len, "Model: %-16.16s\n",
info->sysinfo_1_1_1.model);
len += sprintf (page+len, "Sequence Code: %-16.16s\n",
info->sysinfo_1_1_1.sequence);
len += sprintf (page+len, "Plant: %-4.4s\n",
info->sysinfo_1_1_1.plant);
if (stsi_1_2_2 (&info->sysinfo_1_2_2))
goto out;
len += sprintf (page+len, "\n");
len += sprintf (page+len, "CPUs Total: %d\n",
info->sysinfo_1_2_2.cpus_total);
len += sprintf (page+len, "CPUs Configured: %d\n",
info->sysinfo_1_2_2.cpus_configured);
len += sprintf (page+len, "CPUs Standby: %d\n",
info->sysinfo_1_2_2.cpus_standby);
len += sprintf (page+len, "CPUs Reserved: %d\n",
info->sysinfo_1_2_2.cpus_reserved);
len += sprintf (page+len, "Capability: %d\n",
info->sysinfo_1_2_2.capability);
for (i = 2; i <= info->sysinfo_1_2_2.cpus_total; i++)
len += sprintf (page+len, "Adjustment %02d-way: %d\n",
i, info->sysinfo_1_2_2.adjustment[i-2]);
if (level < 2)
goto out;
if (stsi_2_2_2 (&info->sysinfo_2_2_2))
goto out;
len += sprintf (page+len, "\n");
len += sprintf (page+len, "LPAR Number: %d\n",
info->sysinfo_2_2_2.lpar_number);
len += sprintf (page+len, "LPAR Characteristics: ");
if (info->sysinfo_2_2_2.characteristics & LPAR_CHAR_DEDICATED)
len += sprintf (page+len, "Dedicated ");
if (info->sysinfo_2_2_2.characteristics & LPAR_CHAR_SHARED)
len += sprintf (page+len, "Shared ");
if (info->sysinfo_2_2_2.characteristics & LPAR_CHAR_LIMITED)
len += sprintf (page+len, "Limited ");
len += sprintf (page+len, "\n");
len += sprintf (page+len, "LPAR Name: %-8.8s\n",
info->sysinfo_2_2_2.name);
len += sprintf (page+len, "LPAR Adjustment: %d\n",
info->sysinfo_2_2_2.caf);
len += sprintf (page+len, "LPAR CPUs Total: %d\n",
info->sysinfo_2_2_2.cpus_total);
len += sprintf (page+len, "LPAR CPUs Configured: %d\n",
info->sysinfo_2_2_2.cpus_configured);
len += sprintf (page+len, "LPAR CPUs Standby: %d\n",
info->sysinfo_2_2_2.cpus_standby);
len += sprintf (page+len, "LPAR CPUs Reserved: %d\n",
info->sysinfo_2_2_2.cpus_reserved);
len += sprintf (page+len, "LPAR CPUs Dedicated: %d\n",
info->sysinfo_2_2_2.cpus_dedicated);
len += sprintf (page+len, "LPAR CPUs Shared: %d\n",
info->sysinfo_2_2_2.cpus_shared);
if (level < 3)
goto out;
if (stsi_3_2_2 (&info->sysinfo_3_2_2))
goto out;
for (i = 0; i < info->sysinfo_3_2_2.count; i++)
{
len += sprintf (page+len, "\n");
len += sprintf (page+len, "VM%02d Name: %-8.8s\n",
i, info->sysinfo_3_2_2.vm[i].name);
len += sprintf (page+len, "VM%02d Control Program: %-16.16s\n",
i, info->sysinfo_3_2_2.vm[i].cpi);
len += sprintf (page+len, "VM%02d Adjustment: %d\n",
i, info->sysinfo_3_2_2.vm[i].caf);
len += sprintf (page+len, "VM%02d CPUs Total: %d\n",
i, info->sysinfo_3_2_2.vm[i].cpus_total);
len += sprintf (page+len, "VM%02d CPUs Configured: %d\n",
i, info->sysinfo_3_2_2.vm[i].cpus_configured);
len += sprintf (page+len, "VM%02d CPUs Standby: %d\n",
i, info->sysinfo_3_2_2.vm[i].cpus_standby);
len += sprintf (page+len, "VM%02d CPUs Reserved: %d\n",
i, info->sysinfo_3_2_2.vm[i].cpus_reserved);
}
out:
free_page (info_page);
return len;
}
static __init int create_proc_sysinfo(void)
{
create_proc_read_entry ("sysinfo", 0444, NULL,
proc_read_sysinfo, NULL);
return 0;
}
__initcall(create_proc_sysinfo);
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