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authorJames Custer <jcuster@sgi.com>2014-11-02 12:16:38 -0600
committerThomas Gleixner <tglx@linutronix.de>2014-11-03 13:49:24 +0100
commit3ab0c49fd6b1e80438d0a649584d292880112262 (patch)
treebb4e789bf96b4029ff0fa6d50ba72e1b0ea51b1c /arch/x86/include/asm/uv
parentfa2a79ce6aef5de35a4d50487da35deb6b634944 (diff)
downloadop-kernel-dev-3ab0c49fd6b1e80438d0a649584d292880112262.zip
op-kernel-dev-3ab0c49fd6b1e80438d0a649584d292880112262.tar.gz
x86: UV BAU: Increase maximum CPUs per socket/hub
We have encountered hardware with 18 cores/socket that gives 36 CPUs/socket with hyperthreading enabled. This exceeds the current MAX_CPUS_PER_SOCKET causing a failure in get_cpu_topology. Increase MAX_CPUS_PER_SOCKET to 64 and MAX_CPUS_PER_UVHUB to 128. Signed-off-by: James Custer <jcuster@sgi.com> Cc: Russ Anderson <rja@sgi.com> Link: http://lkml.kernel.org/r/1414952199-185319-1-git-send-email-jcuster@sgi.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/include/asm/uv')
-rw-r--r--arch/x86/include/asm/uv/uv_bau.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h
index 2d60a78..fc808b8 100644
--- a/arch/x86/include/asm/uv/uv_bau.h
+++ b/arch/x86/include/asm/uv/uv_bau.h
@@ -33,8 +33,8 @@
* Each of the descriptors is 64 bytes in size (8*64 = 512 bytes in a set).
*/
-#define MAX_CPUS_PER_UVHUB 64
-#define MAX_CPUS_PER_SOCKET 32
+#define MAX_CPUS_PER_UVHUB 128
+#define MAX_CPUS_PER_SOCKET 64
#define ADP_SZ 64 /* hardware-provided max. */
#define UV_CPUS_PER_AS 32 /* hardware-provided max. */
#define ITEMS_PER_DESC 8
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