From f78eae2e6f5d1eb05f76a45486286445b916bd92 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@hutch.davemloft.net>
Date: Mon, 4 Jun 2007 17:01:39 -0700
Subject: [SPARC64]: Proper multi-core scheduling support.
The scheduling domain hierarchy is:
all cpus -->
cpus that share an instruction cache -->
cpus that share an integer execution unit
Signed-off-by: David S. Miller <davem@davemloft.net>
---
include/asm-sparc64/cpudata.h | 2 +-
include/asm-sparc64/smp.h | 1 +
include/asm-sparc64/topology.h | 13 ++++++++++---
3 files changed, 12 insertions(+), 4 deletions(-)
(limited to 'include')
diff --git a/include/asm-sparc64/cpudata.h b/include/asm-sparc64/cpudata.h
index 03c385de76..445026fbec 100644
--- a/include/asm-sparc64/cpudata.h
+++ b/include/asm-sparc64/cpudata.h
@@ -31,7 +31,7 @@ typedef struct {
unsigned int ecache_size;
unsigned int ecache_line_size;
int core_id;
- unsigned int __pad3;
+ int proc_id;
} cpuinfo_sparc;
DECLARE_PER_CPU(cpuinfo_sparc, __cpu_data);
diff --git a/include/asm-sparc64/smp.h b/include/asm-sparc64/smp.h
index f76e1492ad..5400212686 100644
--- a/include/asm-sparc64/smp.h
+++ b/include/asm-sparc64/smp.h
@@ -33,6 +33,7 @@ extern cpumask_t phys_cpu_present_map;
#define cpu_possible_map phys_cpu_present_map
extern cpumask_t cpu_sibling_map[NR_CPUS];
+extern cpumask_t cpu_core_map[NR_CPUS];
/*
* General functions that each host system must provide.
diff --git a/include/asm-sparc64/topology.h b/include/asm-sparc64/topology.h
index e0d450d600..4880f7ca0b 100644
--- a/include/asm-sparc64/topology.h
+++ b/include/asm-sparc64/topology.h
@@ -1,12 +1,19 @@
#ifndef _ASM_SPARC64_TOPOLOGY_H
#define _ASM_SPARC64_TOPOLOGY_H
+#ifdef CONFIG_SMP
#include <asm/spitfire.h>
-#define smt_capable() (tlb_type == hypervisor)
-
-#include <asm-generic/topology.h>
+#define topology_physical_package_id(cpu) (cpu_data(cpu).proc_id)
#define topology_core_id(cpu) (cpu_data(cpu).core_id)
+#define topology_core_siblings(cpu) (cpu_core_map[cpu])
#define topology_thread_siblings(cpu) (cpu_sibling_map[cpu])
+#define mc_capable() (tlb_type == hypervisor)
+#define smt_capable() (tlb_type == hypervisor)
+#endif /* CONFIG_SMP */
+
+#include <asm-generic/topology.h>
+
+#define cpu_coregroup_map(cpu) (cpu_core_map[cpu])
#endif /* _ASM_SPARC64_TOPOLOGY_H */
--
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