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, 136 insertions, 0 deletions

diff --git a/include/linux/topology.h b/include/linux/topology.h
new file mode 100644
index 000000000000..d70e8972c67f
--- /dev/null
+++ b/include/linux/topology.h
@@ -0,0 +1,136 @@
+/*
+ * include/linux/topology.h
+ *
+ * Written by: Matthew Dobson, IBM Corporation
+ *
+ * Copyright (C) 2002, IBM Corp.
+ *
+ * All rights reserved.          
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to <colpatch@us.ibm.com>
+ */
+#ifndef _LINUX_TOPOLOGY_H
+#define _LINUX_TOPOLOGY_H
+
+#include <linux/cpumask.h>
+#include <linux/bitops.h>
+#include <linux/mmzone.h>
+#include <linux/smp.h>
+#include <asm/topology.h>
+
+#ifndef node_has_online_mem
+#define node_has_online_mem(nid) (1)
+#endif
+
+#ifndef nr_cpus_node
+#define nr_cpus_node(node)                                                      \
+        ({                                                                      \
+                cpumask_t __tmp__;                                              \
+                __tmp__ = node_to_cpumask(node);                                \
+                cpus_weight(__tmp__);                                           \
+        })
+#endif
+
+#define for_each_node_with_cpus(node)                                           \
+        for_each_online_node(node)                                              \
+                if (nr_cpus_node(node))
+
+#ifndef node_distance
+/* Conform to ACPI 2.0 SLIT distance definitions */
+#define LOCAL_DISTANCE          10
+#define REMOTE_DISTANCE         20
+#define node_distance(from,to)  ((from) == (to) ? LOCAL_DISTANCE : REMOTE_DISTANCE)
+#endif
+#ifndef PENALTY_FOR_NODE_WITH_CPUS
+#define PENALTY_FOR_NODE_WITH_CPUS      (1)
+#endif
+
+/*
+ * Below are the 3 major initializers used in building sched_domains:
+ * SD_SIBLING_INIT, for SMT domains
+ * SD_CPU_INIT, for SMP domains
+ * SD_NODE_INIT, for NUMA domains
+ *
+ * Any architecture that cares to do any tuning to these values should do so
+ * by defining their own arch-specific initializer in include/asm/topology.h.
+ * A definition there will automagically override these default initializers
+ * and allow arch-specific performance tuning of sched_domains.
+ */
+#ifdef CONFIG_SCHED_SMT
+/* MCD - Do we really need this?  It is always on if CONFIG_SCHED_SMT is,
+ * so can't we drop this in favor of CONFIG_SCHED_SMT?
+ */
+#define ARCH_HAS_SCHED_WAKE_IDLE
+/* Common values for SMT siblings */
+#ifndef SD_SIBLING_INIT
+#define SD_SIBLING_INIT (struct sched_domain) {         \
+        .span                   = CPU_MASK_NONE,        \
+        .parent                 = NULL,                 \
+        .groups                 = NULL,                 \
+        .min_interval           = 1,                    \
+        .max_interval           = 2,                    \
+        .busy_factor            = 8,                    \
+        .imbalance_pct          = 110,                  \
+        .cache_hot_time         = 0,                    \
+        .cache_nice_tries       = 0,                    \
+        .per_cpu_gain           = 25,                   \
+        .flags                  = SD_LOAD_BALANCE       \
+                                | SD_BALANCE_NEWIDLE    \
+                                | SD_BALANCE_EXEC       \
+                                | SD_WAKE_AFFINE        \
+                                | SD_WAKE_IDLE          \
+                                | SD_SHARE_CPUPOWER,    \
+        .last_balance           = jiffies,              \
+        .balance_interval       = 1,                    \
+        .nr_balance_failed      = 0,                    \
+}
+#endif
+#endif /* CONFIG_SCHED_SMT */
+
+/* Common values for CPUs */
+#ifndef SD_CPU_INIT
+#define SD_CPU_INIT (struct sched_domain) {             \
+        .span                   = CPU_MASK_NONE,        \
+        .parent                 = NULL,                 \
+        .groups                 = NULL,                 \
+        .min_interval           = 1,                    \
+        .max_interval           = 4,                    \
+        .busy_factor            = 64,                   \
+        .imbalance_pct          = 125,                  \
+        .cache_hot_time         = (5*1000000/2),        \
+        .cache_nice_tries       = 1,                    \
+        .per_cpu_gain           = 100,                  \
+        .flags                  = SD_LOAD_BALANCE       \
+                                | SD_BALANCE_NEWIDLE    \
+                                | SD_BALANCE_EXEC       \
+                                | SD_WAKE_AFFINE        \
+                                | SD_WAKE_IDLE          \
+                                | SD_WAKE_BALANCE,      \
+        .last_balance           = jiffies,              \
+        .balance_interval       = 1,                    \
+        .nr_balance_failed      = 0,                    \
+}
+#endif
+
+#ifdef CONFIG_NUMA
+#ifndef SD_NODE_INIT
+#error Please define an appropriate SD_NODE_INIT in include/asm/topology.h!!!
+#endif
+#endif /* CONFIG_NUMA */
+
+#endif /* _LINUX_TOPOLOGY_H */