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authorSiddha, Suresh B <suresh.b.siddha@intel.com>2006-10-03 01:14:09 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-03 08:04:06 -0700
commit89c4710ee9bbbefe6a4d469d9f36266a92c275c5 (patch)
treef84fe28e48bbda210f01f22ae0065f7ed1fcc5e1 /include/linux/topology.h
parent1a84887080dc15f048db7c3a643e98f1435790d6 (diff)
downloadop-kernel-dev-89c4710ee9bbbefe6a4d469d9f36266a92c275c5.zip
op-kernel-dev-89c4710ee9bbbefe6a4d469d9f36266a92c275c5.tar.gz
[PATCH] sched: cleanup sched_group cpu_power setup
Up to now sched group's cpu_power for each sched domain is initialized independently. This made the setup code ugly as the new sched domains are getting added. Make the sched group cpu_power setup code generic, by using domain child field and new domain flag in sched_domain. For most of the sched domains(except NUMA), sched group's cpu_power is now computed generically using the domain properties of itself and of the child domain. sched groups in NUMA domains are setup little differently and hence they don't use this generic mechanism. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/topology.h')
-rw-r--r--include/linux/topology.h43
1 files changed, 33 insertions, 10 deletions
diff --git a/include/linux/topology.h b/include/linux/topology.h
index 486bec2..da508d1 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -115,6 +115,38 @@
#endif
#endif /* CONFIG_SCHED_SMT */
+#ifdef CONFIG_SCHED_MC
+/* Common values for MC siblings. for now mostly derived from SD_CPU_INIT */
+#ifndef SD_MC_INIT
+#define SD_MC_INIT (struct sched_domain) { \
+ .span = CPU_MASK_NONE, \
+ .parent = NULL, \
+ .child = NULL, \
+ .groups = NULL, \
+ .min_interval = 1, \
+ .max_interval = 4, \
+ .busy_factor = 64, \
+ .imbalance_pct = 125, \
+ .cache_nice_tries = 1, \
+ .per_cpu_gain = 100, \
+ .busy_idx = 2, \
+ .idle_idx = 1, \
+ .newidle_idx = 2, \
+ .wake_idx = 1, \
+ .forkexec_idx = 1, \
+ .flags = SD_LOAD_BALANCE \
+ | SD_BALANCE_NEWIDLE \
+ | SD_BALANCE_EXEC \
+ | SD_WAKE_AFFINE \
+ | SD_SHARE_PKG_RESOURCES\
+ | BALANCE_FOR_MC_POWER, \
+ .last_balance = jiffies, \
+ .balance_interval = 1, \
+ .nr_balance_failed = 0, \
+}
+#endif
+#endif /* CONFIG_SCHED_MC */
+
/* Common values for CPUs */
#ifndef SD_CPU_INIT
#define SD_CPU_INIT (struct sched_domain) { \
@@ -137,7 +169,7 @@
| SD_BALANCE_NEWIDLE \
| SD_BALANCE_EXEC \
| SD_WAKE_AFFINE \
- | BALANCE_FOR_POWER, \
+ | BALANCE_FOR_PKG_POWER,\
.last_balance = jiffies, \
.balance_interval = 1, \
.nr_balance_failed = 0, \
@@ -168,15 +200,6 @@
.nr_balance_failed = 0, \
}
-#ifdef CONFIG_SCHED_MC
-#ifndef SD_MC_INIT
-/* for now its same as SD_CPU_INIT.
- * TBD: Tune Domain parameters!
- */
-#define SD_MC_INIT SD_CPU_INIT
-#endif
-#endif
-
#ifdef CONFIG_NUMA
#ifndef SD_NODE_INIT
#error Please define an appropriate SD_NODE_INIT in include/asm/topology.h!!!
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