Commit-ID:  6cb2f1d9af5b0f0afdd4e689d969df4b5c76a4c2
Gitweb:     http://git.kernel.org/tip/6cb2f1d9af5b0f0afdd4e689d969df4b5c76a4c2
Author:     Kan Liang <kan.li...@intel.com>
AuthorDate: Wed, 24 Feb 2016 05:07:43 -0500
Committer:  Ingo Molnar <mi...@kernel.org>
CommitDate: Mon, 29 Feb 2016 09:35:11 +0100

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.li...@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Cc: <sta...@vger.kernel.org>
Cc: <to...@cybernetics.com>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Stephane Eranian <eran...@google.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Tony Battersby <to...@cybernetics.com>
Cc: Vince Weaver <vincent.wea...@maine.edu>
Link: 
http://lkml.kernel.org/r/37d7c6cf3e00a74b8858931c1db2f0770589d...@shsmsx103.ccr.corp.intel.com
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
 arch/x86/events/intel/uncore_snbep.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/uncore_snbep.c 
b/arch/x86/events/intel/uncore_snbep.c
index 0c801f7..d967fcc 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 = {

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