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authorRalf Baechle <ralf@linux-mips.org>2007-03-02 20:42:04 +0000
committerRalf Baechle <ralf@linux-mips.org>2008-01-29 10:14:57 +0000
commit0ab7aefc4d43a6dee26c891b41ef9c7a67d2379b (patch)
tree4a627b7079979ad43b08cef297b2a6eb78d0a78e /include
parent92b1e6a64a8d9d5ed3ec8797eed8b36e2164a410 (diff)
[MIPS] MT: Scheduler support for SMT
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-mips/cpu-info.h5
-rw-r--r--include/asm-mips/smp.h3
-rw-r--r--include/asm-mips/topology.h16
3 files changed, 23 insertions, 1 deletions
diff --git a/include/asm-mips/cpu-info.h b/include/asm-mips/cpu-info.h
index ed5c02c6afb..0c5a358863f 100644
--- a/include/asm-mips/cpu-info.h
+++ b/include/asm-mips/cpu-info.h
@@ -55,6 +55,7 @@ struct cpuinfo_mips {
struct cache_desc scache; /* Secondary cache */
struct cache_desc tcache; /* Tertiary/split secondary cache */
int srsets; /* Shadow register sets */
+ int core; /* physical core number */
#if defined(CONFIG_MIPS_MT_SMTC)
/*
* In the MIPS MT "SMTC" model, each TC is considered
@@ -63,8 +64,10 @@ struct cpuinfo_mips {
* to all TCs within the same VPE.
*/
int vpe_id; /* Virtual Processor number */
- int tc_id; /* Thread Context number */
#endif /* CONFIG_MIPS_MT */
+#ifdef CONFIG_MIPS_MT_SMTC
+ int tc_id; /* Thread Context number */
+#endif
void *data; /* Additional data */
} __attribute__((aligned(SMP_CACHE_BYTES)));
diff --git a/include/asm-mips/smp.h b/include/asm-mips/smp.h
index dc770025a9b..23265879cee 100644
--- a/include/asm-mips/smp.h
+++ b/include/asm-mips/smp.h
@@ -20,6 +20,9 @@
#include <linux/cpumask.h>
#include <asm/atomic.h>
+extern int smp_num_siblings;
+extern cpumask_t cpu_sibling_map[];
+
#define raw_smp_processor_id() (current_thread_info()->cpu)
/* Map from cpu id to sequential logical cpu number. This will only
diff --git a/include/asm-mips/topology.h b/include/asm-mips/topology.h
index 0440fb9f218..259145e07e9 100644
--- a/include/asm-mips/topology.h
+++ b/include/asm-mips/topology.h
@@ -1 +1,17 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2007 by Ralf Baechle
+ */
+#ifndef __ASM_TOPOLOGY_H
+#define __ASM_TOPOLOGY_H
+
#include <topology.h>
+
+#ifdef CONFIG_SMP
+#define smt_capable() (smp_num_siblings > 1)
+#endif
+
+#endif /* __ASM_TOPOLOGY_H */