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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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1
arch/s390/boot/startup.c
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@@ -50,6 +50,7 @@ void startup_kernel(void)
void *img;
rescue_initrd();
sclp_early_read_info();
if (!IS_ENABLED(CONFIG_KERNEL_UNCOMPRESSED)) {
img = decompress_kernel();
memmove((void *)vmlinux.default_lma, img, vmlinux.image_size);