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Diffstat (limited to 'arch/s390/include/asm/sclp.h')
| -rw-r--r-- | arch/s390/include/asm/sclp.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h new file mode 100644 index 000000000..9d4c7f71e --- /dev/null +++ b/arch/s390/include/asm/sclp.h @@ -0,0 +1,161 @@ +/* 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) + +#ifndef __ASSEMBLY__ +#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_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_gisaf : 1; + unsigned char has_diag318 : 1; + unsigned char has_sipl : 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 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_printk(const char *s); +void __sclp_early_printk(const char *s, unsigned int len); + +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 /* __ASSEMBLY__ */ +#endif /* _ASM_S390_SCLP_H */ |