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 SCLP_MAX_CORES                  256
  16
  17 struct sclp_chp_info {
  18         u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
  19         u8 standby[SCLP_CHP_INFO_MASK_SIZE];
  20         u8 configured[SCLP_CHP_INFO_MASK_SIZE];
  21 };
  22
  23 #define LOADPARM_LEN 8
  24
  25 struct sclp_ipl_info {
  26         int is_valid;
  27         int has_dump;
  28         char loadparm[LOADPARM_LEN];
  29 };
  30
  31 struct sclp_core_entry {
  32         u8 core_id;
  33         u8 reserved0;
  34         u8 : 4;
  35         u8 sief2 : 1;
  36         u8 skey : 1;
  37         u8 : 2;
  38         u8 : 2;
  39         u8 gpere : 1;
  40         u8 siif : 1;
  41         u8 sigpif : 1;
  42         u8 : 3;
  43         u8 reserved2[3];
  44         u8 : 2;
  45         u8 ib : 1;
  46         u8 cei : 1;
  47         u8 : 4;
  48         u8 reserved3[6];
  49         u8 type;
  50         u8 reserved1;
  51 } __attribute__((packed));
  52
  53 struct sclp_core_info {
  54         unsigned int configured;
  55         unsigned int standby;
  56         unsigned int combined;
  57         struct sclp_core_entry core[SCLP_MAX_CORES];
  58 };
  59
  60 struct sclp_info {
  61         unsigned char has_linemode : 1;
  62         unsigned char has_vt220 : 1;
  63         unsigned char has_siif : 1;
  64         unsigned char has_sigpif : 1;
  65         unsigned char has_core_type : 1;
  66         unsigned char has_sprp : 1;
  67         unsigned char has_hvs : 1;
  68         unsigned char has_esca : 1;
  69         unsigned char has_sief2 : 1;
  70         unsigned char has_64bscao : 1;
  71         unsigned char has_gpere : 1;
  72         unsigned char has_cmma : 1;
  73         unsigned char has_gsls : 1;
  74         unsigned char has_ib : 1;
  75         unsigned char has_cei : 1;
  76         unsigned char has_pfmfi : 1;
  77         unsigned char has_ibs : 1;
  78         unsigned char has_skey : 1;
  79         unsigned char has_kss : 1;
  80         unsigned char has_gisaf : 1;
  81         unsigned char has_diag318 : 1;
  82         unsigned char has_sipl : 1;
  83         unsigned char has_dirq : 1;
  84         unsigned int ibc;
  85         unsigned int mtid;
  86         unsigned int mtid_cp;
  87         unsigned int mtid_prev;
  88         unsigned long rzm;
  89         unsigned long rnmax;
  90         unsigned long hamax;
  91         unsigned int max_cores;
  92         unsigned long hsa_size;
  93         unsigned long facilities;
  94         unsigned int hmfai;
  95 };
  96 extern struct sclp_info sclp;
  97
  98 struct zpci_report_error_header {
  99         u8 version;     /* Interface version byte */
 100         u8 action;      /* Action qualifier byte
 101                          * 0: Adapter Reset Request
 102                          * 1: Deconfigure and repair action requested
 103                          *      (OpenCrypto Problem Call Home)
 104                          * 2: Informational Report
 105                          *      (OpenCrypto Successful Diagnostics Execution)
 106                          */
 107         u16 length;     /* Length of Subsequent Data (up to 4K – SCLP header */
 108         u8 data[0];     /* Subsequent Data passed verbatim to SCLP ET 24 */
 109 } __packed;
 110
 111 int sclp_early_read_info(void);
 112 int sclp_early_read_storage_info(void);
 113 int sclp_early_get_core_info(struct sclp_core_info *info);
 114 void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
 115 void sclp_early_detect(void);
 116 void sclp_early_printk(const char *s);
 117 void sclp_early_printk_force(const char *s);
 118 void __sclp_early_printk(const char *s, unsigned int len, unsigned int force);
 119
 120 int sclp_early_get_memsize(unsigned long *mem);
 121 int sclp_early_get_hsa_size(unsigned long *hsa_size);
 122 int _sclp_get_core_info(struct sclp_core_info *info);
 123 int sclp_core_configure(u8 core);
 124 int sclp_core_deconfigure(u8 core);
 125 int sclp_sdias_blk_count(void);
 126 int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
 127 int sclp_chp_configure(struct chp_id chpid);
 128 int sclp_chp_deconfigure(struct chp_id chpid);
 129 int sclp_chp_read_info(struct sclp_chp_info *info);
 130 int sclp_pci_configure(u32 fid);
 131 int sclp_pci_deconfigure(u32 fid);
 132 int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
 133 int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count);
 134 int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count);
 135 void sclp_ocf_cpc_name_copy(char *dst);
 136
 137 static inline int sclp_get_core_info(struct sclp_core_info *info, int early)
 138 {
 139         if (early)
 140                 return sclp_early_get_core_info(info);
 141         return _sclp_get_core_info(info);
 142 }
 143
 144 #endif /* _ASM_S390_SCLP_H */