diff options
Diffstat (limited to 'arch/s390/kernel/early.c')
| -rw-r--r-- | arch/s390/kernel/early.c | 22 |
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) |