/* SPDX-License-Identifier: GPL-2.0 */
/*
 *    Copyright IBM Corp. 2007
 */

#ifndef _ASM_S390_SCLP_H
#define _ASM_S390_SCLP_H

#include <linux/types.h>

#define SCLP_CHP_INFO_MASK_SIZE         32
#define EARLY_SCCB_SIZE         PAGE_SIZE
#define SCLP_MAX_CORES          512
/* 144 + 16 * SCLP_MAX_CORES + 2 * (SCLP_MAX_CORES - 1) */
#define EXT_SCCB_READ_SCP       (3 * PAGE_SIZE)
/* 24 + 16 * SCLP_MAX_CORES */
#define EXT_SCCB_READ_CPU       (3 * PAGE_SIZE)

#define SCLP_ERRNOTIFY_AQ_RESET                 0
#define SCLP_ERRNOTIFY_AQ_REPAIR                1
#define SCLP_ERRNOTIFY_AQ_INFO_LOG              2
#define SCLP_ERRNOTIFY_AQ_OPTICS_DATA           3

#ifndef __ASSEMBLER__
#include <linux/uio.h>
#include <asm/chpid.h>
#include <asm/cpu.h>

struct sclp_chp_info {
        u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
        u8 standby[SCLP_CHP_INFO_MASK_SIZE];
        u8 configured[SCLP_CHP_INFO_MASK_SIZE];
};

#define LOADPARM_LEN 8

struct sclp_ipl_info {
        int is_valid;
        int has_dump;
        char loadparm[LOADPARM_LEN];
};

struct sclp_core_entry {
        u8 core_id;
        u8 reserved0;
        u8 : 4;
        u8 sief2 : 1;
        u8 skey : 1;
        u8 : 2;
        u8 : 2;
        u8 gpere : 1;
        u8 siif : 1;
        u8 sigpif : 1;
        u8 : 3;
        u8 reserved2[3];
        u8 : 2;
        u8 ib : 1;
        u8 cei : 1;
        u8 : 4;
        u8 reserved3[6];
        u8 type;
        u8 reserved1;
} __attribute__((packed));

struct sclp_core_info {
        unsigned int configured;
        unsigned int standby;
        unsigned int combined;
        struct sclp_core_entry core[SCLP_MAX_CORES];
};

struct sclp_info {
        unsigned char has_linemode : 1;
        unsigned char has_vt220 : 1;
        unsigned char has_siif : 1;
        unsigned char has_sigpif : 1;
        unsigned char has_core_type : 1;
        unsigned char has_sprp : 1;
        unsigned char has_hvs : 1;
        unsigned char has_wti : 1;
        unsigned char has_esca : 1;
        unsigned char has_sief2 : 1;
        unsigned char has_64bscao : 1;
        unsigned char has_gpere : 1;
        unsigned char has_cmma : 1;
        unsigned char has_gsls : 1;
        unsigned char has_ib : 1;
        unsigned char has_cei : 1;
        unsigned char has_pfmfi : 1;
        unsigned char has_ibs : 1;
        unsigned char has_skey : 1;
        unsigned char has_kss : 1;
        unsigned char has_diag204_bif : 1;
        unsigned char has_gisaf : 1;
        unsigned char has_diag310 : 1;
        unsigned char has_diag318 : 1;
        unsigned char has_diag320 : 1;
        unsigned char has_diag324 : 1;
        unsigned char has_sipl : 1;
        unsigned char has_sipl_eckd : 1;
        unsigned char has_dirq : 1;
        unsigned char has_iplcc : 1;
        unsigned char has_zpci_lsi : 1;
        unsigned char has_aisii : 1;
        unsigned char has_aeni : 1;
        unsigned char has_aisi : 1;
        unsigned int ibc;
        unsigned int mtid;
        unsigned int mtid_cp;
        unsigned int mtid_prev;
        unsigned long rzm;
        unsigned long rnmax;
        unsigned long hamax;
        unsigned int max_cores;
        unsigned long hsa_size;
        unsigned long facilities;
        unsigned int hmfai;
};
extern struct sclp_info sclp;

struct sccb_header {
        u16     length;
        u8      function_code;
        u8      control_mask[3];
        u16     response_code;
} __packed;

struct evbuf_header {
        u16     length;
        u8      type;
        u8      flags;
        u16     _reserved;
} __packed;

struct err_notify_evbuf {
        struct evbuf_header header;
        u8 action;
        u8 atype;
        u32 fh;
        u32 fid;
        u8 data[];
} __packed;

struct err_notify_sccb {
        struct sccb_header header;
        struct err_notify_evbuf evbuf;
} __packed;

struct zpci_report_error_header {
        u8 version;     /* Interface version byte */
        u8 action;      /* Action qualifier byte
                         * 0: Adapter Reset Request
                         * 1: Deconfigure and repair action requested
                         *      (OpenCrypto Problem Call Home)
                         * 2: Informational Report
                         *      (OpenCrypto Successful Diagnostics Execution)
                         */
        u16 length;     /* Length of Subsequent Data (up to 4K – SCLP header */
        u8 data[];      /* Subsequent Data passed verbatim to SCLP ET 24 */
} __packed;

extern char *sclp_early_sccb;

void sclp_early_adjust_va(void);
void sclp_early_set_buffer(void *sccb);
int sclp_early_read_info(void);
int sclp_early_read_storage_info(void);
int sclp_early_get_core_info(struct sclp_core_info *info);
void sclp_early_get_ipl_info(struct sclp_ipl_info *info);
void sclp_early_detect(void);
void sclp_early_detect_machine_features(void);
void sclp_early_printk(const char *s);
void __sclp_early_printk(const char *s, unsigned int len);
void sclp_emergency_printk(const char *s);

int sclp_init(void);
int sclp_early_get_memsize(unsigned long *mem);
int sclp_early_get_hsa_size(unsigned long *hsa_size);
int _sclp_get_core_info(struct sclp_core_info *info);
int sclp_core_configure(u8 core);
int sclp_core_deconfigure(u8 core);
int sclp_sdias_blk_count(void);
int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
int sclp_chp_configure(struct chp_id chpid);
int sclp_chp_deconfigure(struct chp_id chpid);
int sclp_chp_read_info(struct sclp_chp_info *info);
int sclp_pci_configure(u32 fid);
int sclp_pci_deconfigure(u32 fid);
int sclp_ap_configure(u32 apid);
int sclp_ap_deconfigure(u32 apid);
int sclp_pci_report(struct zpci_report_error_header *report, u32 fh, u32 fid);
size_t memcpy_hsa_iter(struct iov_iter *iter, unsigned long src, size_t count);
void sclp_ocf_cpc_name_copy(char *dst);

static inline int sclp_get_core_info(struct sclp_core_info *info, int early)
{
        if (early)
                return sclp_early_get_core_info(info);
        return _sclp_get_core_info(info);
}

#endif /* __ASSEMBLER__ */
#endif /* _ASM_S390_SCLP_H */