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