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s390/sclp: Determine HSA size dynamically for zfcpdump

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Currently we have hardcoded the HSA size to 32 MiB. With this patch the
HSA size is determined dynamically via SCLP in early.c.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Michael Holzheu 2013-11-13 10:38:27 +01:00 • committed by Martin Schwidefsky
parent f8049e3e86
commit e657d8fe2f
10 changed files with 142 additions and 32 deletions
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7
arch/s390/kernel/setup.c
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@ -471,8 +471,9 @@ static void __init setup_memory_end(void)
#ifdef CONFIG_ZFCPDUMP
if (ipl_info.type == IPL_TYPE_FCP_DUMP && !OLDMEM_BASE) {
memory_end = ZFCPDUMP_HSA_SIZE;
if (ipl_info.type == IPL_TYPE_FCP_DUMP &&
!OLDMEM_BASE && sclp_get_hsa_size()) {
memory_end = sclp_get_hsa_size();
memory_end_set = 1;
}
#endif
@ -586,7 +587,7 @@ static unsigned long __init find_crash_base(unsigned long crash_size,
crash_base = (chunk->addr + chunk->size) - crash_size;
if (crash_base < crash_size)
continue;
if (crash_base < ZFCPDUMP_HSA_SIZE_MAX)
if (crash_base < sclp_get_hsa_size())
continue;
if (crash_base < (unsigned long) INITRD_START + INITRD_SIZE)
continue;