linux-kernel - [PATCH 3.16 074/217] perf/x86/intel: Add definition for PT PMI bit

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Date:	Wed, 27 Apr 2016 01:02:21 +0200
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org,
	"Peter Zijlstra (Intel)" <peterz@...radead.org>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Ingo Molnar" <mingo@...nel.org>,
	"Linus Torvalds" <torvalds@...ux-foundation.org>,
	adrian.hunter@...el.com, "Stephane Eranian" <eranian@...gle.com>,
	"Jiri Olsa" <jolsa@...hat.com>,
	"Arnaldo Carvalho de Melo" <acme@...hat.com>,
	"Vince Weaver" <vincent.weaver@...ne.edu>, kan.liang@...el.com,
	namhyung@...nel.org,
	"Alexander Shishkin" <alexander.shishkin@...ux.intel.com>
Subject: [PATCH 3.16 074/217] perf/x86/intel: Add definition for PT PMI bit

3.16.35-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Stephane Eranian <eranian@...gle.com>

commit 5690ae28e472d25e330ad0c637a5cea3fc39fb32 upstream.

This patch adds a definition for GLOBAL_OVFL_STATUS bit 55
which is used with the Processor Trace (PT) feature.

Signed-off-by: Stephane Eranian <eranian@...gle.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Alexander Shishkin <alexander.shishkin@...ux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@...hat.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Vince Weaver <vincent.weaver@...ne.edu>
Cc: adrian.hunter@...el.com
Cc: kan.liang@...el.com
Cc: namhyung@...nel.org
Link: http://lkml.kernel.org/r/1457034642-21837-2-git-send-email-eranian@google.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -151,6 +151,8 @@ struct x86_pmu_capability {
  */
 #define INTEL_PMC_IDX_FIXED_BTS				(INTEL_PMC_IDX_FIXED + 16)
 
+#define GLOBAL_STATUS_TRACE_TOPAPMI			BIT_ULL(55)
+
 /*
  * IBS cpuid feature detection
  */