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authorHeiko Carstens <heiko.carstens@de.ibm.com>2012-11-02 12:56:43 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-11-23 11:14:30 +0100
commit6b70a92080be508e16b2f53efba39e5155eff809 (patch)
treea8bce16cd2f31284a392b29b4054230afce87168 /arch/s390/kernel
parent1e466fcf3882e4c17c7df918185d0069cc334811 (diff)
s390/memory hotplug: use pfmf instruction to initialize storage keys
Move and rename init_storage_keys() to pageattr.c, so it can also be used from the sclp memory hotplug code in order to initialize storage keys. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/setup.c36
1 files changed, 1 insertions, 35 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index b1f2be9aaaad..cfdad57957fe 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -777,40 +777,6 @@ static void __init reserve_crashkernel(void)
#endif
}
-static void __init init_storage_keys(unsigned long start, unsigned long end)
-{
- unsigned long boundary, function, size;
-
- while (start < end) {
- if (MACHINE_HAS_EDAT2) {
- /* set storage keys for a 2GB frame */
- function = 0x22000 | PAGE_DEFAULT_KEY;
- size = 1UL << 31;
- boundary = (start + size) & ~(size - 1);
- if (boundary <= end) {
- do {
- start = pfmf(function, start);
- } while (start < boundary);
- continue;
- }
- }
- if (MACHINE_HAS_EDAT1) {
- /* set storage keys for a 1MB frame */
- function = 0x21000 | PAGE_DEFAULT_KEY;
- size = 1UL << 20;
- boundary = (start + size) & ~(size - 1);
- if (boundary <= end) {
- do {
- start = pfmf(function, start);
- } while (start < boundary);
- continue;
- }
- }
- page_set_storage_key(start, PAGE_DEFAULT_KEY, 0);
- start += PAGE_SIZE;
- }
-}
-
static void __init setup_memory(void)
{
unsigned long bootmap_size;
@@ -889,7 +855,7 @@ static void __init setup_memory(void)
memblock_add_node(PFN_PHYS(start_chunk),
PFN_PHYS(end_chunk - start_chunk), 0);
pfn = max(start_chunk, start_pfn);
- init_storage_keys(PFN_PHYS(pfn), PFN_PHYS(end_chunk));
+ storage_key_init_range(PFN_PHYS(pfn), PFN_PHYS(end_chunk));
}
psw_set_key(PAGE_DEFAULT_KEY);