diff options
Diffstat (limited to 'arch/x86/kernel/apic')
| -rw-r--r-- | arch/x86/kernel/apic/apic.c | 6 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_uv_x.c | 16 |
2 files changed, 20 insertions, 2 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 098ec84b8c0..f2870920f24 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -431,6 +431,12 @@ static void __cpuinit setup_APIC_timer(void) { struct clock_event_device *levt = &__get_cpu_var(lapic_events); + if (cpu_has(¤t_cpu_data, X86_FEATURE_ARAT)) { + lapic_clockevent.features &= ~CLOCK_EVT_FEAT_C3STOP; + /* Make LAPIC timer preferrable over percpu HPET */ + lapic_clockevent.rating = 150; + } + memcpy(levt, &lapic_clockevent, sizeof(*levt)); levt->cpumask = cpumask_of(smp_processor_id()); diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index 49d2f5c739b..d6712334ce4 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -563,7 +563,8 @@ void __init uv_system_init(void) unsigned long gnode_upper, lowmem_redir_base, lowmem_redir_size; int bytes, nid, cpu, lcpu, pnode, blade, i, j, m_val, n_val; int max_pnode = 0; - unsigned long mmr_base, present; + unsigned long mmr_base, present, paddr; + unsigned short pnode_mask; map_low_mmrs(); @@ -606,6 +607,7 @@ void __init uv_system_init(void) } } + pnode_mask = (1 << n_val) - 1; node_id.v = uv_read_local_mmr(UVH_NODE_ID); gnode_upper = (((unsigned long)node_id.s.node_id) & ~((1 << n_val) - 1)) << m_val; @@ -629,7 +631,7 @@ void __init uv_system_init(void) uv_cpu_hub_info(cpu)->numa_blade_id = blade; uv_cpu_hub_info(cpu)->blade_processor_id = lcpu; uv_cpu_hub_info(cpu)->pnode = pnode; - uv_cpu_hub_info(cpu)->pnode_mask = (1 << n_val) - 1; + uv_cpu_hub_info(cpu)->pnode_mask = pnode_mask; uv_cpu_hub_info(cpu)->gpa_mask = (1 << (m_val + n_val)) - 1; uv_cpu_hub_info(cpu)->gnode_upper = gnode_upper; uv_cpu_hub_info(cpu)->global_mmr_base = mmr_base; @@ -645,6 +647,16 @@ void __init uv_system_init(void) lcpu, blade); } + /* Add blade/pnode info for nodes without cpus */ + for_each_online_node(nid) { + if (uv_node_to_blade[nid] >= 0) + continue; + paddr = node_start_pfn(nid) << PAGE_SHIFT; + pnode = (paddr >> m_val) & pnode_mask; + blade = boot_pnode_to_blade(pnode); + uv_node_to_blade[nid] = blade; + } + map_gru_high(max_pnode); map_mmr_high(max_pnode); map_config_high(max_pnode); |