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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2010-10-25 16:10:52 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com> | 2010-10-25 16:10:21 +0200 |
| commit | 9186d7a9cfd75e51ac4db4a40e0a558371988bd2 (patch) | |
| tree | df0dcb04bd32105734ac736e9ceb1900065dd66a /arch/s390/kernel | |
| parent | 14375bc4eb8dd0fb0e765390650564c35bb31068 (diff) | |
| download | blackbird-obmc-linux-9186d7a9cfd75e51ac4db4a40e0a558371988bd2.tar.gz blackbird-obmc-linux-9186d7a9cfd75e51ac4db4a40e0a558371988bd2.zip | |
[S390] topology: clean up facility detection
Move cpu topology facility detection to early setup code where it
should be.
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/early.c | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/topology.c | 14 |
2 files changed, 7 insertions, 9 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index d2455d44d99a..d149609e46e6 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -382,6 +382,8 @@ static __init void detect_machine_facilities(void) S390_lowcore.machine_flags |= MACHINE_FLAG_IDTE; if (test_facility(8)) S390_lowcore.machine_flags |= MACHINE_FLAG_PFMF; + if (test_facility(11)) + S390_lowcore.machine_flags |= MACHINE_FLAG_TOPOLOGY; if (test_facility(27)) S390_lowcore.machine_flags |= MACHINE_FLAG_MVCOS; if (test_facility(40)) diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index 91fb66baa50b..69004411a93d 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -66,7 +66,6 @@ struct mask_info { static int topology_enabled = 1; static void topology_work_fn(struct work_struct *work); static struct tl_info *tl_info; -static int machine_has_topology; static struct timer_list topology_timer; static void set_topology_timer(void); static DECLARE_WORK(topology_work, topology_work_fn); @@ -88,7 +87,7 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu) cpumask_t mask; cpus_clear(mask); - if (!topology_enabled || !machine_has_topology) + if (!topology_enabled || !MACHINE_HAS_TOPOLOGY) return cpu_possible_map; while (info) { if (cpu_isset(cpu, info->mask)) { @@ -186,7 +185,6 @@ static void tl_to_cores(struct tl_info *info) break; default: clear_masks(); - machine_has_topology = 0; goto out; } tle = next_tle(tle); @@ -223,7 +221,7 @@ int topology_set_cpu_management(int fc) int cpu; int rc; - if (!machine_has_topology) + if (!MACHINE_HAS_TOPOLOGY) return -EOPNOTSUPP; if (fc) rc = ptf(PTF_VERTICAL); @@ -269,7 +267,7 @@ int arch_update_cpu_topology(void) struct sys_device *sysdev; int cpu; - if (!machine_has_topology) { + if (!MACHINE_HAS_TOPOLOGY) { update_cpu_core_map(); topology_update_polarization_simple(); return 0; @@ -323,7 +321,7 @@ static int __init init_topology_update(void) int rc; rc = 0; - if (!machine_has_topology) { + if (!MACHINE_HAS_TOPOLOGY) { topology_update_polarization_simple(); goto out; } @@ -354,10 +352,8 @@ void __init s390_init_cpu_topology(void) struct tl_info *info; int i; - if (!test_facility(2) || !test_facility(11)) + if (!MACHINE_HAS_TOPOLOGY) return; - machine_has_topology = 1; - tl_info = alloc_bootmem_pages(PAGE_SIZE); info = tl_info; store_topology(info); |
