diff options
| author | James Custer | 2014-11-02 19:16:38 +0100 |
|---|---|---|
| committer | Thomas Gleixner | 2014-11-03 13:49:24 +0100 |
| commit | 3ab0c49fd6b1e80438d0a649584d292880112262 (patch) | |
| tree | bb4e789bf96b4029ff0fa6d50ba72e1b0ea51b1c /arch | |
| parent | x86: UV BAU: Avoid NULL pointer reference in ptc_seq_show (diff) | |
| download | kernel-qcow2-linux-3ab0c49fd6b1e80438d0a649584d292880112262.tar.gz kernel-qcow2-linux-3ab0c49fd6b1e80438d0a649584d292880112262.tar.xz kernel-qcow2-linux-3ab0c49fd6b1e80438d0a649584d292880112262.zip | |
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')
| -rw-r--r-- | arch/x86/include/asm/uv/uv_bau.h | 4 |
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 2d60a7813dfe..fc808b83fccb 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 |