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3f975df69d
When running under qemu with the default configuration (-nographic), there is only a VT220 SCLP console, no line-mode SCLP console. Add VT220 support to the early SCLP console so the user has a chance to see critical error messages during early boot. None of the existing users of _sclp_print_early() check the return code. Instead of trying to come up with return code semantics when printing to multiple consoles (any or all of which may fail), we just drop the return code entirely. Tested on z/VM (line mode console) and LPAR (VT220 and line mode console). Tested on qemu/KVM with VT220 console and / or line mode console. Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
86 lines
2.0 KiB
C
86 lines
2.0 KiB
C
/*
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* Copyright IBM Corp. 2007
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* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
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*/
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#ifndef _ASM_S390_SCLP_H
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#define _ASM_S390_SCLP_H
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#include <linux/types.h>
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#include <asm/chpid.h>
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#include <asm/cpu.h>
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#define SCLP_CHP_INFO_MASK_SIZE 32
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#define SCLP_MAX_CORES 256
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struct sclp_chp_info {
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u8 recognized[SCLP_CHP_INFO_MASK_SIZE];
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u8 standby[SCLP_CHP_INFO_MASK_SIZE];
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u8 configured[SCLP_CHP_INFO_MASK_SIZE];
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};
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#define LOADPARM_LEN 8
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struct sclp_ipl_info {
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int is_valid;
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int has_dump;
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char loadparm[LOADPARM_LEN];
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};
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struct sclp_core_entry {
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u8 core_id;
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u8 reserved0[2];
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u8 : 3;
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u8 siif : 1;
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u8 sigpif : 1;
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u8 : 3;
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u8 reserved2[10];
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u8 type;
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u8 reserved1;
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} __attribute__((packed));
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struct sclp_core_info {
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unsigned int configured;
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unsigned int standby;
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unsigned int combined;
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struct sclp_core_entry core[SCLP_MAX_CORES];
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};
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struct sclp_info {
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unsigned char has_linemode : 1;
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unsigned char has_vt220 : 1;
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unsigned char has_siif : 1;
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unsigned char has_sigpif : 1;
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unsigned char has_core_type : 1;
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unsigned char has_sprp : 1;
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unsigned int ibc;
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unsigned int mtid;
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unsigned int mtid_cp;
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unsigned int mtid_prev;
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unsigned long long rzm;
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unsigned long long rnmax;
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unsigned long long hamax;
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unsigned int max_cores;
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unsigned long hsa_size;
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unsigned long long facilities;
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};
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extern struct sclp_info sclp;
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int sclp_get_core_info(struct sclp_core_info *info);
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int sclp_core_configure(u8 core);
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int sclp_core_deconfigure(u8 core);
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int sclp_sdias_blk_count(void);
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int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
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int sclp_chp_configure(struct chp_id chpid);
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int sclp_chp_deconfigure(struct chp_id chpid);
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int sclp_chp_read_info(struct sclp_chp_info *info);
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void sclp_get_ipl_info(struct sclp_ipl_info *info);
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int sclp_pci_configure(u32 fid);
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int sclp_pci_deconfigure(u32 fid);
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int memcpy_hsa_kernel(void *dest, unsigned long src, size_t count);
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int memcpy_hsa_user(void __user *dest, unsigned long src, size_t count);
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void sclp_early_detect(void);
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void _sclp_print_early(const char *);
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#endif /* _ASM_S390_SCLP_H */
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