Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 68 insertions, 0 deletions

diff --git a/include/asm-x86_64/topology.h b/include/asm-x86_64/topology.h
new file mode 100644
index 000000000000..67f24e0ea819
--- /dev/null
+++ b/include/asm-x86_64/topology.h
@@ -0,0 +1,68 @@
+#ifndef _ASM_X86_64_TOPOLOGY_H
+#define _ASM_X86_64_TOPOLOGY_H
+
+#include <linux/config.h>
+
+#ifdef CONFIG_DISCONTIGMEM
+
+#include <asm/mpspec.h>
+#include <asm/bitops.h>
+
+/* Map the K8 CPU local memory controllers to a simple 1:1 CPU:NODE topology */
+
+extern cpumask_t cpu_online_map;
+
+extern unsigned char cpu_to_node[];
+extern cpumask_t     node_to_cpumask[];
+extern cpumask_t pci_bus_to_cpumask[];
+
+#ifdef CONFIG_ACPI_NUMA
+extern int __node_distance(int, int);
+#define node_distance(a,b) __node_distance(a,b)
+/* #else fallback version */
+#endif
+
+#define cpu_to_node(cpu)                (cpu_to_node[cpu])
+#define parent_node(node)               (node)
+#define node_to_first_cpu(node)         (__ffs(node_to_cpumask[node]))
+#define node_to_cpumask(node)           (node_to_cpumask[node])
+
+static inline cpumask_t __pcibus_to_cpumask(int bus)
+{
+        cpumask_t busmask = pci_bus_to_cpumask[bus];
+        cpumask_t online = cpu_online_map;
+        cpumask_t res;
+        cpus_and(res, busmask, online);
+        return res;
+}
+#define pcibus_to_cpumask(bus) __pcibus_to_cpumask(bus->number)
+
+#ifdef CONFIG_NUMA
+/* sched_domains SD_NODE_INIT for x86_64 machines */
+#define SD_NODE_INIT (struct sched_domain) {            \
+        .span                   = CPU_MASK_NONE,        \
+        .parent                 = NULL,                 \
+        .groups                 = NULL,                 \
+        .min_interval           = 8,                    \
+        .max_interval           = 32,                   \
+        .busy_factor            = 32,                   \
+        .imbalance_pct          = 125,                  \
+        .cache_hot_time         = (10*1000000),         \
+        .cache_nice_tries       = 1,                    \
+        .per_cpu_gain           = 100,                  \
+        .flags                  = SD_LOAD_BALANCE       \
+                                | SD_BALANCE_NEWIDLE    \
+                                | SD_BALANCE_EXEC       \
+                                | SD_WAKE_IDLE          \
+                                | SD_WAKE_BALANCE,      \
+        .last_balance           = jiffies,              \
+        .balance_interval       = 1,                    \
+        .nr_balance_failed      = 0,                    \
+}
+#endif
+
+#endif
+
+#include <asm-generic/topology.h>
+
+#endif