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s390/mem_detect: add debugging output

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The s390 specific memory detection code does not call memblock_add,
which would generate debug output if memblock=debug is specified on
the kernel command line. Instead it directly calls memblock_add_range,
which doesn't generate any debug output.
To have a chance to debug early memblock related bugs add an s390
specific memblock_dbg call and a (missing) memblock_dump_all call.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2016-12-27 15:14:26 +01:00
committed by Martin Schwidefsky
parent 7be5e359a7
commit a2ce2a9568
1 changed files with 3 additions and 0 deletions
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3
arch/s390/mm/mem_detect.c
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@@ -19,6 +19,8 @@
static inline void memblock_physmem_add(phys_addr_t start, phys_addr_t size) static inline void memblock_physmem_add(phys_addr_t start, phys_addr_t size)
{ {
memblock_dbg("memblock_physmem_add: [%#016llx-%#016llx]\n",
start, start + size - 1);
memblock_add_range(&memblock.memory, start, size, 0, 0); memblock_add_range(&memblock.memory, start, size, 0, 0);
memblock_add_range(&memblock.physmem, start, size, 0, 0); memblock_add_range(&memblock.physmem, start, size, 0, 0);
} }
@@ -55,4 +57,5 @@ void __init detect_memory_memblock(void)
memblock_set_bottom_up(false); memblock_set_bottom_up(false);
if (!max_physmem_end) if (!max_physmem_end)
max_physmem_end = memblock_end_of_DRAM(); max_physmem_end = memblock_end_of_DRAM();
memblock_dump_all();
} }