The patch below does not apply to the 4.5-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable@xxxxxxxxxxxxxxx>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 6cb2f1d9af5b0f0afdd4e689d969df4b5c76a4c2 Mon Sep 17 00:00:00 2001 From: Kan Liang <kan.liang@xxxxxxxxx> Date: Wed, 24 Feb 2016 05:07:43 -0500 Subject: [PATCH] perf/x86/intel/uncore: Remove SBOX support for BDX-DE BDX-DE and BDX-EP share the same uncore code path. But there is no sbox in BDX-DE. This patch remove SBOX support for BDX-DE. Signed-off-by: Kan Liang <kan.liang@xxxxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> Cc: <tonyb@xxxxxxxxxxxxxxx> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> Cc: Jiri Olsa <jolsa@xxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Stephane Eranian <eranian@xxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Tony Battersby <tonyb@xxxxxxxxxxxxxxx> Cc: Vince Weaver <vincent.weaver@xxxxxxxxx> Link: http://lkml.kernel.org/r/37D7C6CF3E00A74B8858931C1DB2F0770589D336@xxxxxxxxxxxxxxxxxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c index 0c801f77c03d..d967fcc9d5fb 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -2874,11 +2874,13 @@ static struct intel_uncore_type bdx_uncore_sbox = { .format_group = &hswep_uncore_sbox_format_group, }; +#define BDX_MSR_UNCORE_SBOX 3 + static struct intel_uncore_type *bdx_msr_uncores[] = { &bdx_uncore_ubox, &bdx_uncore_cbox, - &bdx_uncore_sbox, &hswep_uncore_pcu, + &bdx_uncore_sbox, NULL, }; @@ -2887,6 +2889,10 @@ void bdx_uncore_cpu_init(void) if (bdx_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores) bdx_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores; uncore_msr_uncores = bdx_msr_uncores; + + /* BDX-DE doesn't have SBOX */ + if (boot_cpu_data.x86_model == 86) + uncore_msr_uncores[BDX_MSR_UNCORE_SBOX] = NULL; } static struct intel_uncore_type bdx_uncore_ha = { -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html