/* * 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_64BIT __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_zeroed_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 && stsi_1_1_1 (&info->sysinfo_1_1_1) == 0) { 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 (level >= 1 && stsi_1_2_2 (&info->sysinfo_1_2_2) == 0) { 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 && stsi_2_2_2 (&info->sysinfo_2_2_2) == 0) { 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 && stsi_3_2_2 (&info->sysinfo_3_2_2) == 0) { 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); } } 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);