Commit-ID: 3ab0c49fd6b1e80438d0a649584d292880112262 Gitweb: http://git.kernel.org/tip/3ab0c49fd6b1e80438d0a649584d292880112262 Author: James Custer <jcuster@xxxxxxx> AuthorDate: Sun, 2 Nov 2014 12:16:38 -0600 Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx> CommitDate: Mon, 3 Nov 2014 13:49:24 +0100 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@xxxxxxx> Cc: Russ Anderson <rja@xxxxxxx> Link: http://lkml.kernel.org/r/1414952199-185319-1-git-send-email-jcuster@xxxxxxx Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> --- arch/x86/include/asm/uv/uv_bau.h | 4 ++-- 1 file 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 -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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