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s390/sclp: move sclp_early_read_info to sclp_early_core.c

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To enable early online memory detection sclp_early_read_info has
been moved to sclp_early_core.c. sclp_info_sccb has been made a part
of .boot.data, which allows to reuse it later during early kernel
startup and make sclp_early_read_info call just once.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Vasily Gorbik
2018-05-23 11:07:13 +02:00
committed by Martin Schwidefsky
parent d1b52a4388
commit 17aacfbfa1
5 changed files with 81 additions and 64 deletions
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arch/s390/include/asm/sclp.h
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@@ -105,6 +105,7 @@ struct zpci_report_error_header {
u8 data[0]; /* Subsequent Data passed verbatim to SCLP ET 24 */
} __packed;
int sclp_early_read_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);