- patches.suse/slab-handle-memoryless-nodes-v2a.patch: Refresh.

[linux-flexiantxendom0-3.2.10.git] / arch / x86 / kernel / apic / x2apic_uv_x.c

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 2b57028..da45106 100644 (file)
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -36,13 +36,15 @@ DEFINE_PER_CPU(int, x2apic_extra_bits);
 
 static enum uv_system_type uv_system_type;
 static u64 gru_start_paddr, gru_end_paddr;
+int uv_min_hub_revision_id;
+EXPORT_SYMBOL_GPL(uv_min_hub_revision_id);
 
-static int is_GRU_range(u64 start, u64 end)
+static inline bool is_GRU_range(u64 start, u64 end)
 {
-       return start >= gru_start_paddr && end < gru_end_paddr;
+       return start >= gru_start_paddr && end <= gru_end_paddr;
 }
 
-static int uv_is_untracked_pat_range(u64 start, u64 end)
+static bool uv_is_untracked_pat_range(u64 start, u64 end)
 {
        return is_ISA_range(start, end) || is_GRU_range(start, end);
 }
@@ -55,12 +57,19 @@ static int early_get_nodeid(void)
        mmr = early_ioremap(UV_LOCAL_MMR_BASE | UVH_NODE_ID, sizeof(*mmr));
        node_id.v = *mmr;
        early_iounmap(mmr, sizeof(*mmr));
+
+       /* Currently, all blades have same revision number */
+       uv_min_hub_revision_id = node_id.s.revision;
+
        return node_id.s.node_id;
 }
 
 static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 {
+       int nodeid;
+
        if (!strcmp(oem_id, "SGI")) {
+               nodeid = early_get_nodeid();
                x86_platform.is_untracked_pat_range =  uv_is_untracked_pat_range;
                if (!strcmp(oem_table_id, "UVL"))
                        uv_system_type = UV_LEGACY_APIC;
@@ -68,7 +77,7 @@ static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
                        uv_system_type = UV_X2APIC;
                else if (!strcmp(oem_table_id, "UVH")) {
                        __get_cpu_var(x2apic_extra_bits) =
-                               early_get_nodeid() << (UV_APIC_PNODE_SHIFT - 1);
+                               nodeid << (UV_APIC_PNODE_SHIFT - 1);
                        uv_system_type = UV_NON_UNIQUE_APIC;
                        return 1;
                }
@@ -225,10 +234,7 @@ uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
                if (cpumask_test_cpu(cpu, cpu_online_mask))
                        break;
        }
-       if (cpu < nr_cpu_ids)
-               return per_cpu(x86_cpu_to_apicid, cpu);
-
-       return BAD_APICID;
+       return per_cpu(x86_cpu_to_apicid, cpu);
 }
 
 static unsigned int x2apic_get_apic_id(unsigned long x)