Contributors: 13
Author Tokens Token Proportion Commits Commit Proportion
Martin Schwidefsky 429 49.48% 6 16.67%
Heiko Carstens 297 34.26% 17 47.22%
Christian Bornträger 32 3.69% 2 5.56%
Viktor Mihajlovski 26 3.00% 1 2.78%
Ekaterina Tumanova 24 2.77% 1 2.78%
Vasily Gorbik 20 2.31% 1 2.78%
Linus Torvalds 12 1.38% 1 2.78%
QingFeng Hao 12 1.38% 1 2.78%
Hendrik Brueckner 5 0.58% 1 2.78%
Frank Blaschka 3 0.35% 1 2.78%
Gustavo A. R. Silva 3 0.35% 1 2.78%
Christoph Hellwig 2 0.23% 1 2.78%
Greg Kroah-Hartman 2 0.23% 2 5.56%
Total 867 36 


/* SPDX-License-Identifier: GPL-2.0 */
/*
 * definition for store system information stsi
 *
 * Copyright IBM Corp. 2001, 2008
 *
 *    Author(s): Ulrich Weigand <weigand@de.ibm.com>
 *		 Christian Borntraeger <borntraeger@de.ibm.com>
 */

#ifndef __ASM_S390_SYSINFO_H
#define __ASM_S390_SYSINFO_H

#include <linux/uuid.h>
#include <asm/bitsperlong.h>
#include <asm/asm.h>

/*
 * stsi - store system information
 *
 * Returns the current configuration level if function code 0 was specified.
 * Otherwise returns 0 on success or a negative value on error.
 */
static inline int stsi(void *sysinfo, int fc, int sel1, int sel2)
{
	int r0 = (fc << 28) | sel1;
	int cc;

	asm volatile(
		"	lr	%%r0,%[r0]\n"
		"	lr	%%r1,%[r1]\n"
		"	stsi	%[sysinfo]\n"
		"	lr	%[r0],%%r0\n"
		CC_IPM(cc)
		: CC_OUT(cc, cc), [r0] "+d" (r0), [sysinfo] "=Q" (*(char *)sysinfo)
		: [r1] "d" (sel2)
		: CC_CLOBBER_LIST("0", "1", "memory"));
	if (cc == 3)
		return -EOPNOTSUPP;
	return fc ? 0 : (unsigned int)r0 >> 28;
}

struct sysinfo_1_1_1 {
	unsigned char p:1;
	unsigned char :6;
	unsigned char t:1;
	unsigned char :8;
	unsigned char ccr;
	unsigned char cai;
	char reserved_0[20];
	unsigned long lic;
	char manufacturer[16];
	char type[4];
	char reserved_1[12];
	char model_capacity[16];
	char sequence[16];
	char plant[4];
	char model[16];
	char model_perm_cap[16];
	char model_temp_cap[16];
	unsigned int model_cap_rating;
	unsigned int model_perm_cap_rating;
	unsigned int model_temp_cap_rating;
	unsigned char typepct[5];
	unsigned char reserved_2[3];
	unsigned int ncr;
	unsigned int npr;
	unsigned int ntr;
	char reserved_3[4];
	char model_var_cap[16];
	unsigned int model_var_cap_rating;
	unsigned int nvr;
};

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 format;
	char reserved_0[1];
	unsigned short acc_offset;
	unsigned char mt_installed :1;
	unsigned char :2;
	unsigned char mt_stid :5;
	unsigned char :3;
	unsigned char mt_gtid :5;
	char reserved_1[18];
	unsigned int nominal_cap;
	unsigned int secondary_cap;
	unsigned int capability;
	unsigned short cpus_total;
	unsigned short cpus_configured;
	unsigned short cpus_standby;
	unsigned short cpus_reserved;
	unsigned short adjustment[];
};

struct sysinfo_1_2_2_extension {
	unsigned int alt_capability;
	unsigned short alt_adjustment[];
};

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;
	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[8];
	unsigned char mt_installed :1;
	unsigned char :2;
	unsigned char mt_stid :5;
	unsigned char :3;
	unsigned char mt_gtid :5;
	unsigned char :3;
	unsigned char mt_psmtid :5;
	char reserved_3[5];
	unsigned short cpus_dedicated;
	unsigned short cpus_shared;
	char reserved_4[3];
	unsigned char vsne;
	uuid_t uuid;
	char reserved_5[160];
	char ext_name[256];
};

#define LPAR_CHAR_DEDICATED	(1 << 7)
#define LPAR_CHAR_SHARED	(1 << 6)
#define LPAR_CHAR_LIMITED	(1 << 5)

struct sysinfo_3_2_2 {
	char reserved_0[31];
	unsigned char :4;
	unsigned char count:4;
	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[3];
		unsigned char evmne;
		unsigned int reserved_2;
		uuid_t uuid;
	} vm[8];
	char reserved_3[1504];
	char ext_names[8][256];
};

extern int topology_max_mnest;

/*
 * Returns the maximum nesting level supported by the cpu topology code.
 * The current maximum level is 4 which is the drawer level.
 */
static inline unsigned char topology_mnest_limit(void)
{
	return min(topology_max_mnest, 4);
}

#define TOPOLOGY_NR_MAG		6

struct topology_core {
	unsigned char nl;
	unsigned char reserved0[3];
	unsigned char :5;
	unsigned char d:1;
	unsigned char pp:2;
	unsigned char reserved1;
	unsigned short origin;
	unsigned long mask;
};

struct topology_container {
	unsigned char nl;
	unsigned char reserved[6];
	unsigned char id;
};

union topology_entry {
	unsigned char nl;
	struct topology_core cpu;
	struct topology_container container;
};

struct sysinfo_15_1_x {
	unsigned char reserved0[2];
	unsigned short length;
	unsigned char mag[TOPOLOGY_NR_MAG];
	unsigned char reserved1;
	unsigned char mnest;
	unsigned char reserved2[4];
	union topology_entry tle[];
};

int stsi(void *sysinfo, int fc, int sel1, int sel2);

/*
 * Service level reporting interface.
 */
struct service_level {
	struct list_head list;
	void (*seq_print)(struct seq_file *, struct service_level *);
};

int register_service_level(struct service_level *);
int unregister_service_level(struct service_level *);

int sthyi_fill(void *dst, u64 *rc);
#endif /* __ASM_S390_SYSINFO_H */