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authorDavid S. Miller <davem@sunset.davemloft.net>2006-03-08 16:09:19 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 01:14:24 -0800
commit8935dced547afbf37d0fcfcac9a3556494e53104 (patch)
tree0ae802875c73e99b86e4f90be6e953ec0c528dea /include/asm-sparc64
parent17b0e199a10184d8c5bbbd79a4cee993bb1fb257 (diff)
downloadop-kernel-dev-8935dced547afbf37d0fcfcac9a3556494e53104.zip
op-kernel-dev-8935dced547afbf37d0fcfcac9a3556494e53104.tar.gz
[SPARC64]: Add SMT scheduling support for Niagara.
The mapping is a simple "(cpuid >> 2) == core" for now. Later we'll add more sophisticated code that will walk the sun4v machine description and figure this out from there. We should also add core mappings for jaguar and panther processors. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64')
-rw-r--r--include/asm-sparc64/smp.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-sparc64/smp.h b/include/asm-sparc64/smp.h
index ad1d35a..89d86ec 100644
--- a/include/asm-sparc64/smp.h
+++ b/include/asm-sparc64/smp.h
@@ -33,6 +33,8 @@
extern cpumask_t phys_cpu_present_map;
#define cpu_possible_map phys_cpu_present_map
+extern cpumask_t cpu_sibling_map[NR_CPUS];
+
/*
* General functions that each host system must provide.
*/
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