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
  12#define SCLP_CHP_INFO_MASK_SIZE         32
  13#define EARLY_SCCB_SIZE         PAGE_SIZE
  14#define SCLP_MAX_CORES          512
  15/* 144 + 16 * SCLP_MAX_CORES + 2 * (SCLP_MAX_CORES - 1) */
  16#define EXT_SCCB_READ_SCP       (3 * PAGE_SIZE)
  17/* 24 + 16 * SCLP_MAX_CORES */
  18#define EXT_SCCB_READ_CPU       (3 * PAGE_SIZE)
  19
  20#ifndef __ASSEMBLY__
  21#include <asm/chpid.h>
  22#include <asm/cpu.h>
  23
  24struct sclp_chp_info {
  25        u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
  26        u8 standby[SCLP_CHP_INFO_MASK_SIZE];
  27        u8 configured[SCLP_CHP_INFO_MASK_SIZE];
  28};
  29
  30#define LOADPARM_LEN 8
  31
  32struct sclp_ipl_info {
  33        int is_valid;
  34        int has_dump;
  35        char loadparm[LOADPARM_LEN];
  36};
  37
  38struct sclp_core_entry {
  39        u8 core_id;
  40        u8 reserved0;
  41        u8 : 4;
  42        u8 sief2 : 1;
  43        u8 skey : 1;
  44        u8 : 2;
  45        u8 : 2;
  46        u8 gpere : 1;
  47        u8 siif : 1;
  48        u8 sigpif : 1;
  49        u8 : 3;
  50        u8 reserved2[3];
  51        u8 : 2;
  52        u8 ib : 1;
  53        u8 cei : 1;
  54        u8 : 4;
  55        u8 reserved3[6];
  56        u8 type;
  57        u8 reserved1;
  58} __attribute__((packed));
  59
  60struct sclp_core_info {
  61        unsigned int configured;
  62        unsigned int standby;
  63        unsigned int combined;
  64        struct sclp_core_entry core[SCLP_MAX_CORES];
  65};
  66
  67struct sclp_info {
  68        unsigned char has_linemode : 1;
  69        unsigned char has_vt220 : 1;
  70        unsigned char has_siif : 1;
  71        unsigned char has_sigpif : 1;
  72        unsigned char has_core_type : 1;
  73        unsigned char has_sprp : 1;
  74        unsigned char has_hvs : 1;
  75        unsigned char has_esca : 1;
  76        unsigned char has_sief2 : 1;
  77        unsigned char has_64bscao : 1;
  78        unsigned char has_gpere : 1;
  79        unsigned char has_cmma : 1;
  80        unsigned char has_gsls : 1;
  81        unsigned char has_ib : 1;
  82        unsigned char has_cei : 1;
  83        unsigned char has_pfmfi : 1;
  84        unsigned char has_ibs : 1;
  85        unsigned char has_skey : 1;
  86        unsigned char has_kss : 1;
  87        unsigned char has_gisaf : 1;
  88        unsigned char has_diag318 : 1;
  89        unsigned char has_sipl : 1;
  90        unsigned char has_dirq : 1;
  91        unsigned int ibc;
  92        unsigned int mtid;
  93        unsigned int mtid_cp;
  94        unsigned int mtid_prev;
  95        unsigned long rzm;
  96        unsigned long rnmax;
  97        unsigned long hamax;
  98        unsigned int max_cores;
  99        unsigned long hsa_size;
 100        unsigned long facilities;
 101        unsigned int hmfai;
 102};
 103extern struct sclp_info sclp;
 104
 105struct zpci_report_error_header {
 106        u8 version;     /* Interface version byte */
 107        u8 action;      /* Action qualifier byte
 108                         * 0: Adapter Reset Request
 109                         * 1: Deconfigure and repair action requested
 110                         *      (OpenCrypto Problem Call Home)
 111                         * 2: Informational Report
 112                         *      (OpenCrypto Successful Diagnostics Execution)
 113                         */
 114        u16 length;     /* Length of Subsequent Data (up to 4K – SCLP header */
 115        u8 data[0];     /* Subsequent Data passed verbatim to SCLP ET 24 */
 116} __packed;
 117
 118extern char *sclp_early_sccb;
 119
 120void sclp_early_set_buffer(void *sccb);
 121int sclp_early_read_info(void);
 122int sclp_early_read_storage_info(void);
 123int sclp_early_get_core_info(struct sclp_core_info *info);
 124void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
 125void sclp_early_detect(void);
 126void sclp_early_printk(const char *s);
 127void __sclp_early_printk(const char *s, unsigned int len);
 128
 129int sclp_early_get_memsize(unsigned long *mem);
 130int sclp_early_get_hsa_size(unsigned long *hsa_size);
 131int _sclp_get_core_info(struct sclp_core_info *info);
 132int sclp_core_configure(u8 core);
 133int sclp_core_deconfigure(u8 core);
 134int sclp_sdias_blk_count(void);
 135int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
 136int sclp_chp_configure(struct chp_id chpid);
 137int sclp_chp_deconfigure(struct chp_id chpid);
 138int sclp_chp_read_info(struct sclp_chp_info *info);
 139int sclp_pci_configure(u32 fid);
 140int sclp_pci_deconfigure(u32 fid);
 141int sclp_ap_configure(u32 apid);
 142int sclp_ap_deconfigure(u32 apid);
 143int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
 144int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count);
 145int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count);
 146void sclp_ocf_cpc_name_copy(char *dst);
 147
 148static inline int sclp_get_core_info(struct sclp_core_info *info, int early)
 149{
 150        if (early)
 151                return sclp_early_get_core_info(info);
 152        return _sclp_get_core_info(info);
 153}
 154
 155#endif /* __ASSEMBLY__ */
 156#endif /* _ASM_S390_SCLP_H */
 157