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| author | Alexander Egorenkov <egorenar@linux.ibm.com> | 2021-06-15 14:25:41 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2021-07-27 09:39:16 +0200 |
| commit | e9e7870f90e3587b712e05db2ded947a3f617119 (patch) | |
| tree | 5f46c90fdecbab876787f31650b0bae4be075b7f /arch/s390/kernel/smp.c | |
| parent | s390/boot: introduce boot data 'initrd_data' (diff) | |
| download | linux-e9e7870f90e3587b712e05db2ded947a3f617119.tar.xz linux-e9e7870f90e3587b712e05db2ded947a3f617119.zip | |
s390/dump: introduce boot data 'oldmem_data'
The new boot data struct shall replace global variables OLDMEM_BASE and
OLDMEM_SIZE. It is initialized in the decompressor and passed
to the decompressed kernel. In comparison to the old solution, this one
doesn't access data at fixed physical addresses which will become important
when the decompressor becomes relocatable.
Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/kernel/smp.c')
| -rw-r--r-- | arch/s390/kernel/smp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 8984711f72ed..e612a125be31 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -673,7 +673,7 @@ void __init smp_save_dump_cpus(void) unsigned long page; bool is_boot_cpu; - if (!(OLDMEM_BASE || is_ipl_type_dump())) + if (!(oldmem_data.start || is_ipl_type_dump())) /* No previous system present, normal boot. */ return; /* Allocate a page as dumping area for the store status sigps */ @@ -704,7 +704,7 @@ void __init smp_save_dump_cpus(void) * these registers an SCLP request is required which is * done by drivers/s390/char/zcore.c:init_cpu_info() */ - if (!is_boot_cpu || OLDMEM_BASE) + if (!is_boot_cpu || oldmem_data.start) /* Get the CPU registers */ smp_save_cpu_regs(sa, addr, is_boot_cpu, page); } |