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authorVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>2005-09-03 15:56:31 -0700
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 00:06:10 -0700
commit911a62d42365076209e2c327e7688db296e35d62 (patch)
tree51e6d8525cd3547ea43129b5dd20339655674d57 /include/asm-i386/apicdef.h
parent484b90c4b965d54037ff99b198d84cdf144f8a35 (diff)
downloadop-kernel-dev-911a62d42365076209e2c327e7688db296e35d62.zip
op-kernel-dev-911a62d42365076209e2c327e7688db296e35d62.tar.gz
[PATCH] x86: sutomatically enable bigsmp when we have more than 8 CPUs
i386 generic subarchitecture requires explicit dmi strings or command line to enable bigsmp mode. The patch below removes that restriction, and uses bigsmp as soon as it finds more than 8 logical CPUs, Intel processors and xAPIC support. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-i386/apicdef.h')
-rw-r--r--include/asm-i386/apicdef.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-i386/apicdef.h b/include/asm-i386/apicdef.h
index a96a8f4..03185ce 100644
--- a/include/asm-i386/apicdef.h
+++ b/include/asm-i386/apicdef.h
@@ -16,6 +16,7 @@
#define GET_APIC_VERSION(x) ((x)&0xFF)
#define GET_APIC_MAXLVT(x) (((x)>>16)&0xFF)
#define APIC_INTEGRATED(x) ((x)&0xF0)
+#define APIC_XAPIC(x) ((x) >= 0x14)
#define APIC_TASKPRI 0x80
#define APIC_TPRI_MASK 0xFF
#define APIC_ARBPRI 0x90
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