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Diffstat (limited to 'arch/s390/boot/mem_detect.c')
-rw-r--r--arch/s390/boot/mem_detect.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/s390/boot/mem_detect.c b/arch/s390/boot/mem_detect.c
index 62e7c13ce85c..40168e59abd3 100644
--- a/arch/s390/boot/mem_detect.c
+++ b/arch/s390/boot/mem_detect.c
@@ -8,7 +8,6 @@
#include "compressed/decompressor.h"
#include "boot.h"
-unsigned long __bootdata(max_physmem_end);
struct mem_detect_info __bootdata(mem_detect);
/* up to 256 storage elements, 1020 subincrements each */
@@ -149,27 +148,29 @@ static void search_mem_end(void)
add_mem_detect_block(0, (offset + 1) << 20);
}
-void detect_memory(void)
+unsigned long detect_memory(void)
{
+ unsigned long max_physmem_end;
+
sclp_early_get_memsize(&max_physmem_end);
if (!sclp_early_read_storage_info()) {
mem_detect.info_source = MEM_DETECT_SCLP_STOR_INFO;
- return;
+ return max_physmem_end;
}
if (!diag260()) {
mem_detect.info_source = MEM_DETECT_DIAG260;
- return;
+ return max_physmem_end;
}
if (max_physmem_end) {
add_mem_detect_block(0, max_physmem_end);
mem_detect.info_source = MEM_DETECT_SCLP_READ_INFO;
- return;
+ return max_physmem_end;
}
search_mem_end();
mem_detect.info_source = MEM_DETECT_BIN_SEARCH;
- max_physmem_end = get_mem_detect_end();
+ return get_mem_detect_end();
}