diff options
| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2010-10-25 16:10:51 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 16:10:21 +0200 |
| commit | 14375bc4eb8dd0fb0e765390650564c35bb31068 (patch) | |
| tree | 27200620658245c582ee9497fc969a082b304cab /arch/s390/kernel/topology.c | |
| parent | eca577ef5989d25dedc6b0fae3c4622ceaee8005 (diff) | |
[S390] cleanup facility list handling
Store the facility list once at system startup with stfl/stfle and
reuse the result for all facility tests.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/topology.c')
| -rw-r--r-- | arch/s390/kernel/topology.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index eb0bc4752ae8..91fb66baa50b 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -351,13 +351,10 @@ static void alloc_masks(struct tl_info *info, struct mask_info *mask, int offset void __init s390_init_cpu_topology(void) { - unsigned long long facility_bits; struct tl_info *info; int i; - if (stfle(&facility_bits, 1) <= 0) - return; - if (!(facility_bits & (1ULL << 52)) || !(facility_bits & (1ULL << 61))) + if (!test_facility(2) || !test_facility(11)) return; machine_has_topology = 1; |