linux/include/asm-s390/sclp.h
Heiko Carstens ab14de6c37 [S390] Convert memory detection into C code.
Hopefully this will make it more maintainable and less error prone.
Code makes use of search_exception_tables(). Since it calls this
function before the kernel exeception table is sorted, there is an
early call to sort_main_extable().

This way it's easy to use the already present infrastructure of fixup
sections. Also this would allows to easily convert the rest of
head[31|64].S into C code.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-05 21:18:37 +01:00

40 lines
907 B
C

/*
* include/asm-s390/sclp.h
*
* Copyright IBM Corp. 2007
* Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
*/
#ifndef _ASM_S390_SCLP_H
#define _ASM_S390_SCLP_H
#include <linux/types.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)));
extern struct sclp_readinfo_sccb s390_readinfo_sccb;
extern void sclp_readinfo_early(void);
#endif /* _ASM_S390_SCLP_H */