From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Ingo Molnar <mingo@elte.hu>, linux-kernel@vger.kernel.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Anton Blanchard <anton@au1.ibm.com>,
Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>,
Suresh Siddha <suresh.b.siddha@intel.com>,
Venkatesh Pallipadi <venki@google.com>,
Paul Turner <pjt@google.com>, Mike Galbraith <efault@gmx.de>,
Thomas Gleixner <tglx@linutronix.de>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Andreas Herrmann <andreas.herrmann3@amd.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [PATCH 19/23] sched: Stuff the sched_domain creation in a data-structure
Date: Thu, 07 Apr 2011 14:10:00 +0200 [thread overview]
Message-ID: <20110407122942.770335383@chello.nl> (raw)
In-Reply-To: 20110407120941.400629539@chello.nl
[-- Attachment #1: sched-foo17.patch --]
[-- Type: text/plain, Size: 2201 bytes --]
In order to make the topology contruction fully dynamic, remove the
still hard-coded list of possible domains and stuck them in a
data-structure.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
kernel/sched.c | 32 ++++++++++++++++++++++++++------
1 file changed, 26 insertions(+), 6 deletions(-)
Index: linux-2.6/kernel/sched.c
===================================================================
--- linux-2.6.orig/kernel/sched.c
+++ linux-2.6/kernel/sched.c
@@ -6819,6 +6819,16 @@ enum s_alloc {
sa_none,
};
+typedef struct sched_domain *(*sched_domain_build_f)(struct s_data *d,
+ const struct cpumask *cpu_map, struct sched_domain_attr *attr,
+ struct sched_domain *parent, int cpu);
+
+typedef const struct cpumask *(*sched_domain_mask_f)(int cpu);
+
+struct sched_domain_topology_level {
+ sched_domain_build_f build;
+};
+
/*
* Assumes the sched_domain tree is fully constructed
*/
@@ -7161,6 +7171,18 @@ static struct sched_domain *__build_smt_
return sd;
}
+static struct sched_domain_topology_level default_topology[] = {
+ { __build_allnodes_sched_domain, },
+ { __build_node_sched_domain, },
+ { __build_cpu_sched_domain, },
+ { __build_book_sched_domain, },
+ { __build_mc_sched_domain, },
+ { __build_smt_sched_domain, },
+ { NULL, },
+};
+
+static struct sched_domain_topology_level *sched_domain_topology = default_topology;
+
/*
* Build sched domains for a given set of cpus and attach the sched domains
* to the individual cpus
@@ -7179,13 +7201,11 @@ static int __build_sched_domains(const s
/* Set up domains for cpus specified by the cpu_map. */
for_each_cpu(i, cpu_map) {
+ struct sched_domain_topology_level *tl;
+
sd = NULL;
- sd = __build_allnodes_sched_domain(&d, cpu_map, attr, sd, i);
- sd = __build_node_sched_domain(&d, cpu_map, attr, sd, i);
- sd = __build_cpu_sched_domain(&d, cpu_map, attr, sd, i);
- sd = __build_book_sched_domain(&d, cpu_map, attr, sd, i);
- sd = __build_mc_sched_domain(&d, cpu_map, attr, sd, i);
- sd = __build_smt_sched_domain(&d, cpu_map, attr, sd, i);
+ for (tl = sched_domain_topology; tl->build; tl++)
+ sd = tl->build(&d, cpu_map, attr, sd, i);
*per_cpu_ptr(d.sd, i) = sd;
}
next prev parent reply other threads:[~2011-04-07 12:44 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-07 12:09 [PATCH 00/23] sched: Rewrite sched_domain/sched_group creation Peter Zijlstra
2011-04-07 12:09 ` [PATCH 01/23] sched: Remove obsolete arch_ prefixes Peter Zijlstra
2011-04-11 14:34 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 02/23] sched: Simplify cpu_power initialization Peter Zijlstra
2011-04-11 14:34 ` [tip:sched/domains] sched: Simplify ->cpu_power initialization tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 03/23] sched: Simplify build_sched_groups Peter Zijlstra
2011-04-11 14:34 ` [tip:sched/domains] sched: Simplify build_sched_groups() tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 04/23] sched: Change NODE sched_domain group creation Peter Zijlstra
2011-04-11 14:35 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-29 14:09 ` [PATCH 04/23] " Andreas Herrmann
2011-04-07 12:09 ` [PATCH 05/23] sched: Clean up some ALLNODES code Peter Zijlstra
2011-04-11 14:35 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 06/23] sched: Simplify sched_group creation Peter Zijlstra
2011-04-11 14:36 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 07/23] sched: Simplify finding the lowest sched_domain Peter Zijlstra
2011-04-11 14:36 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 08/23] sched: Simplify sched_groups_power initialization Peter Zijlstra
2011-04-11 14:37 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 09/23] sched: Dynamically allocate sched_domain/sched_group data-structures Peter Zijlstra
2011-04-11 14:37 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 10/23] sched: Simplify the free path some Peter Zijlstra
2011-04-11 14:37 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 11/23] sched: Avoid using sd->level Peter Zijlstra
2011-04-11 14:38 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 12/23] sched: Reduce some allocation pressure Peter Zijlstra
2011-04-11 14:38 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 13/23] sched: Simplify NODE/ALLNODES domain creation Peter Zijlstra
2011-04-11 14:39 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 14/23] sched: Remove nodemask allocation Peter Zijlstra
2011-04-11 14:39 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 15/23] sched: Remove some dead code Peter Zijlstra
2011-04-11 14:39 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 16/23] sched: Create persistent sched_domains_tmpmask Peter Zijlstra
2011-04-11 14:40 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 17/23] sched: Avoid allocations in sched_domain_debug() Peter Zijlstra
2011-04-11 14:40 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:09 ` [PATCH 18/23] sched: Create proper cpu_$DOM_mask() functions Peter Zijlstra
2011-04-11 14:41 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:10 ` Peter Zijlstra [this message]
2011-04-11 14:41 ` [tip:sched/domains] sched: Stuff the sched_domain creation in a data-structure tip-bot for Peter Zijlstra
2011-04-07 12:10 ` [PATCH 20/23] sched: Unify the sched_domain build functions Peter Zijlstra
2011-04-11 14:42 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:10 ` [PATCH 21/23] sched: Reverse the topology list Peter Zijlstra
2011-04-11 14:42 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 12:10 ` [PATCH 22/23] sched: Move sched domain storage into " Peter Zijlstra
2011-04-11 14:42 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-29 14:11 ` [PATCH 22/23] " Andreas Herrmann
2011-04-07 12:10 ` [PATCH 23/23] sched: Dynamic sched_domain::level Peter Zijlstra
2011-04-11 14:43 ` [tip:sched/domains] " tip-bot for Peter Zijlstra
2011-04-07 13:51 ` [PATCH 00/23] sched: Rewrite sched_domain/sched_group creation Mike Galbraith
2011-04-07 14:05 ` [RFC][PATCH 24/23] sched: Rewrite CONFIG_NUMA support Peter Zijlstra
2011-04-29 14:07 ` [PATCH 00/23] sched: Rewrite sched_domain/sched_group creation Andreas Herrmann
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