LXR linux/arch/s390/include/asm/sclp.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 *    Copyright IBM Corp. 2007
   4 *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
   5 */
   6
   7#ifndef _ASM_S390_SCLP_H
   8#define _ASM_S390_SCLP_H
   9
  10#include <linux/types.h>
  11#include <asm/chpid.h>
  12#include <asm/cpu.h>
  13
  14#define SCLP_CHP_INFO_MASK_SIZE         32
  15#define EARLY_SCCB_SIZE         PAGE_SIZE
  16#define SCLP_MAX_CORES          512
  17/* 144 + 16 * SCLP_MAX_CORES + 2 * (SCLP_MAX_CORES - 1) */
  18#define EXT_SCCB_READ_SCP       (3 * PAGE_SIZE)
  19/* 24 + 16 * SCLP_MAX_CORES */
  20#define EXT_SCCB_READ_CPU       (3 * PAGE_SIZE)
  21
  22struct sclp_chp_info {
  23        u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
  24        u8 standby[SCLP_CHP_INFO_MASK_SIZE];
  25        u8 configured[SCLP_CHP_INFO_MASK_SIZE];
  26};
  27
  28#define LOADPARM_LEN 8
  29
  30struct sclp_ipl_info {
  31        int is_valid;
  32        int has_dump;
  33        char loadparm[LOADPARM_LEN];
  34};
  35
  36struct sclp_core_entry {
  37        u8 core_id;
  38        u8 reserved0;
  39        u8 : 4;
  40        u8 sief2 : 1;
  41        u8 skey : 1;
  42        u8 : 2;
  43        u8 : 2;
  44        u8 gpere : 1;
  45        u8 siif : 1;
  46        u8 sigpif : 1;
  47        u8 : 3;
  48        u8 reserved2[3];
  49        u8 : 2;
  50        u8 ib : 1;
  51        u8 cei : 1;
  52        u8 : 4;
  53        u8 reserved3[6];
  54        u8 type;
  55        u8 reserved1;
  56} __attribute__((packed));
  57
  58struct sclp_core_info {
  59        unsigned int configured;
  60        unsigned int standby;
  61        unsigned int combined;
  62        struct sclp_core_entry core[SCLP_MAX_CORES];
  63};
  64
  65struct sclp_info {
  66        unsigned char has_linemode : 1;
  67        unsigned char has_vt220 : 1;
  68        unsigned char has_siif : 1;
  69        unsigned char has_sigpif : 1;
  70        unsigned char has_core_type : 1;
  71        unsigned char has_sprp : 1;
  72        unsigned char has_hvs : 1;
  73        unsigned char has_esca : 1;
  74        unsigned char has_sief2 : 1;
  75        unsigned char has_64bscao : 1;
  76        unsigned char has_gpere : 1;
  77        unsigned char has_cmma : 1;
  78        unsigned char has_gsls : 1;
  79        unsigned char has_ib : 1;
  80        unsigned char has_cei : 1;
  81        unsigned char has_pfmfi : 1;
  82        unsigned char has_ibs : 1;
  83        unsigned char has_skey : 1;
  84        unsigned char has_kss : 1;
  85        unsigned char has_gisaf : 1;
  86        unsigned char has_diag318 : 1;
  87        unsigned char has_sipl : 1;
  88        unsigned char has_dirq : 1;
  89        unsigned int ibc;
  90        unsigned int mtid;
  91        unsigned int mtid_cp;
  92        unsigned int mtid_prev;
  93        unsigned long rzm;
  94        unsigned long rnmax;
  95        unsigned long hamax;
  96        unsigned int max_cores;
  97        unsigned long hsa_size;
  98        unsigned long facilities;
  99        unsigned int hmfai;
 100};
 101extern struct sclp_info sclp;
 102
 103struct zpci_report_error_header {
 104        u8 version;     /* Interface version byte */
 105        u8 action;      /* Action qualifier byte
 106                         * 0: Adapter Reset Request
 107                         * 1: Deconfigure and repair action requested
 108                         *      (OpenCrypto Problem Call Home)
 109                         * 2: Informational Report
 110                         *      (OpenCrypto Successful Diagnostics Execution)
 111                         */
 112        u16 length;     /* Length of Subsequent Data (up to 4K – SCLP header */
 113        u8 data[0];     /* Subsequent Data passed verbatim to SCLP ET 24 */
 114} __packed;
 115
 116int sclp_early_read_info(void);
 117int sclp_early_read_storage_info(void);
 118int sclp_early_get_core_info(struct sclp_core_info *info);
 119void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
 120void sclp_early_detect(void);
 121void sclp_early_printk(const char *s);
 122void __sclp_early_printk(const char *s, unsigned int len);
 123
 124int sclp_early_get_memsize(unsigned long *mem);
 125int sclp_early_get_hsa_size(unsigned long *hsa_size);
 126int _sclp_get_core_info(struct sclp_core_info *info);
 127int sclp_core_configure(u8 core);
 128int sclp_core_deconfigure(u8 core);
 129int sclp_sdias_blk_count(void);
 130int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
 131int sclp_chp_configure(struct chp_id chpid);
 132int sclp_chp_deconfigure(struct chp_id chpid);
 133int sclp_chp_read_info(struct sclp_chp_info *info);
 134int sclp_pci_configure(u32 fid);
 135int sclp_pci_deconfigure(u32 fid);
 136int sclp_ap_configure(u32 apid);
 137int sclp_ap_deconfigure(u32 apid);
 138int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
 139int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count);
 140int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count);
 141void sclp_ocf_cpc_name_copy(char *dst);
 142
 143static inline int sclp_get_core_info(struct sclp_core_info *info, int early)
 144{
 145        if (early)
 146                return sclp_early_get_core_info(info);
 147        return _sclp_get_core_info(info);
 148}
 149
 150#endif /* _ASM_S390_SCLP_H */
 151