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authorLinus Torvalds <torvalds@linux-foundation.org>2009-04-16 16:43:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-04-16 16:43:20 -0700
commit20d9207849d5abe60461841b3c3724f6e7c9d33e (patch)
tree4466a988d7dd9f0e08225cf6faca1cd6ab6d7dde /arch/x86/kernel/apic
parentc19f83669a02d4fa047d0d40f518e90f6f19c4c6 (diff)
parent4ea3c51d5bd3bb4eea7d7d3a1f80d1a48c2a6f92 (diff)
Merge branch 'x86/uv' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86/uv' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: UV BAU distribution and payload MMRs x86: UV: BAU partition-relative distribution map x86, uv: add Kconfig dependency on NUMA for UV systems x86: prevent /sys/firmware/sgi_uv from being created on non-uv systems x86, UV: Fix for nodes with memory and no cpus x86, UV: system table in bios accessed after unmap x86: UV BAU messaging timeouts x86: UV BAU and nodes with no memory
Diffstat (limited to 'arch/x86/kernel/apic')
-rw-r--r--arch/x86/kernel/apic/x2apic_uv_x.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 1248318436e..de1a50af807 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -549,7 +549,8 @@ 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();
@@ -592,6 +593,7 @@ 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;
@@ -615,7 +617,7 @@ 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;
@@ -631,6 +633,16 @@ 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);