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-rw-r--r--arch/s390/mm/mem_detect.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/s390/mm/mem_detect.c b/arch/s390/mm/mem_detect.c
index d612cc3eec6a..e58dca05b962 100644
--- a/arch/s390/mm/mem_detect.c
+++ b/arch/s390/mm/mem_detect.c
@@ -5,7 +5,6 @@
*/
#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/memblock.h>
#include <linux/init.h>
#include <linux/debugfs.h>
@@ -19,6 +18,8 @@
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.physmem, start, size, 0, 0);
}
@@ -39,7 +40,8 @@ void __init detect_memory_memblock(void)
memblock_set_bottom_up(true);
do {
size = 0;
- type = tprot(addr);
+ /* assume lowcore is writable */
+ type = addr ? tprot(addr) : CHUNK_READ_WRITE;
do {
size += rzm;
if (max_physmem_end && addr + size >= max_physmem_end)
@@ -55,4 +57,5 @@ void __init detect_memory_memblock(void)
memblock_set_bottom_up(false);
if (!max_physmem_end)
max_physmem_end = memblock_end_of_DRAM();
+ memblock_dump_all();
}