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[S390] sclp: introduce some new interfaces.

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Introduce some new interfaces so that random subsystems don't have to
mess around with sclp internal structures.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2007-07-10 11:24:09 +02:00
committed by Martin Schwidefsky
parent bccdbdc9bd
commit 05dd25307c
5 changed files with 122 additions and 102 deletions
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46
include/asm-s390/sclp.h
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@@ -11,29 +11,6 @@
#include <linux/types.h>
#include <asm/chpid.h>
struct sccb_header {
u16 length;
u8 function_code;
u8 control_mask[3];
u16 response_code;
} __attribute__((packed));
#define LOADPARM_LEN 8
struct sclp_readinfo_sccb {
struct sccb_header header; /* 0-7 */
u16 rnmax; /* 8-9 */
u8 rnsize; /* 10 */
u8 _reserved0[24 - 11]; /* 11-23 */
u8 loadparm[LOADPARM_LEN]; /* 24-31 */
u8 _reserved1[91 - 32]; /* 32-90 */
u8 flags; /* 91 */
u8 _reserved2[100 - 92]; /* 92-99 */
u32 rnsize2; /* 100-103 */
u64 rnmax2; /* 104-111 */
u8 _reserved3[4096 - 112]; /* 112-4095 */
} __attribute__((packed, aligned(4096)));
#define SCLP_CHP_INFO_MASK_SIZE 32
struct sclp_chp_info {
@@ -42,12 +19,21 @@ struct sclp_chp_info {
u8 configured[SCLP_CHP_INFO_MASK_SIZE];
};
extern struct sclp_readinfo_sccb s390_readinfo_sccb;
extern void sclp_readinfo_early(void);
extern int sclp_sdias_blk_count(void);
extern int sclp_sdias_copy(void *dest, int blk_num, int nr_blks);
extern int sclp_chp_configure(struct chp_id chpid);
extern int sclp_chp_deconfigure(struct chp_id chpid);
extern int sclp_chp_read_info(struct sclp_chp_info *info);
#define LOADPARM_LEN 8
struct sclp_ipl_info {
int is_valid;
int has_dump;
char loadparm[LOADPARM_LEN];
};
void sclp_readinfo_early(void);
unsigned long long sclp_memory_detect(void);
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);
void sclp_get_ipl_info(struct sclp_ipl_info *info);
#endif /* _ASM_S390_SCLP_H */