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-rw-r--r--arch/s390/kernel/early.c22
1 files changed, 3 insertions, 19 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 52098d6dfaa7..9475e682727f 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -29,6 +29,7 @@
#include <asm/sysinfo.h>
#include <asm/cpcmd.h>
#include <asm/sclp.h>
+#include <asm/facility.h>
#include "entry.h"
/*
@@ -262,25 +263,8 @@ static noinline __init void setup_lowcore_early(void)
static noinline __init void setup_facility_list(void)
{
- unsigned long nr;
-
- S390_lowcore.stfl_fac_list = 0;
- asm volatile(
- " .insn s,0xb2b10000,0(0)\n" /* stfl */
- "0:\n"
- EX_TABLE(0b,0b) : "=m" (S390_lowcore.stfl_fac_list));
- memcpy(&S390_lowcore.stfle_fac_list, &S390_lowcore.stfl_fac_list, 4);
- nr = 4; /* # bytes stored by stfl */
- if (test_facility(7)) {
- /* More facility bits available with stfle */
- register unsigned long reg0 asm("0") = MAX_FACILITY_BIT/64 - 1;
- asm volatile(".insn s,0xb2b00000,%0" /* stfle */
- : "=m" (S390_lowcore.stfle_fac_list), "+d" (reg0)
- : : "cc");
- nr = (reg0 + 1) * 8; /* # bytes stored by stfle */
- }
- memset((char *) S390_lowcore.stfle_fac_list + nr, 0,
- MAX_FACILITY_BIT/8 - nr);
+ stfle(S390_lowcore.stfle_fac_list,
+ ARRAY_SIZE(S390_lowcore.stfle_fac_list));
}
static noinline __init void setup_hpage(void)