linux-kernel - [tip:perf/core] perf/x86: Fix format definition of SNB-EP uncore QPI box

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Message-ID: <tip-c1ece48cf7ec07c6b3e093a4036b54bc6078f782@git.kernel.org>
Date:	Thu, 26 Jul 2012 08:14:37 -0700
From:	"tip-bot for Yan, Zheng" <zheng.z.yan@...el.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, eranian@...gle.com, hpa@...or.com,
	mingo@...nel.org, a.p.zijlstra@...llo.nl, zheng.z.yan@...el.com,
	tglx@...utronix.de
Subject: [tip:perf/core] perf/x86:
  Fix format definition of SNB-EP uncore QPI box

Commit-ID:  c1ece48cf7ec07c6b3e093a4036b54bc6078f782
Gitweb:     http://git.kernel.org/tip/c1ece48cf7ec07c6b3e093a4036b54bc6078f782
Author:     Yan, Zheng <zheng.z.yan@...el.com>
AuthorDate: Tue, 24 Jul 2012 10:44:10 +0800
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Thu, 26 Jul 2012 12:23:14 +0200

perf/x86: Fix format definition of SNB-EP uncore QPI box

The event control register of SNB-EP uncore QPI box has a one bit
extension at bit position 21.

Reported-by: Stephane Eranian <eranian@...gle.com>
Signed-off-by: Yan, Zheng <zheng.z.yan@...el.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/1343097850-4348-1-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_uncore.c |   22 +++++++++++++++++++++-
 arch/x86/kernel/cpu/perf_event_intel_uncore.h |    4 ++++
 2 files changed, 25 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index d998170..7563fda 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -18,6 +18,7 @@ static struct event_constraint constraint_empty =
 	EVENT_CONSTRAINT(0, 0, 0);
 
 DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
+DEFINE_UNCORE_FORMAT_ATTR(event_ext, event, "config:0-7,21");
 DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
 DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
 DEFINE_UNCORE_FORMAT_ATTR(tid_en, tid_en, "config:19");
@@ -293,6 +294,15 @@ static struct attribute *snbep_uncore_pcu_formats_attr[] = {
 	NULL,
 };
 
+static struct attribute *snbep_uncore_qpi_formats_attr[] = {
+	&format_attr_event_ext.attr,
+	&format_attr_umask.attr,
+	&format_attr_edge.attr,
+	&format_attr_inv.attr,
+	&format_attr_thresh8.attr,
+	NULL,
+};
+
 static struct uncore_event_desc snbep_uncore_imc_events[] = {
 	INTEL_UNCORE_EVENT_DESC(clockticks,      "event=0xff,umask=0x00"),
 	INTEL_UNCORE_EVENT_DESC(cas_count_read,  "event=0x04,umask=0x03"),
@@ -328,6 +338,11 @@ static struct attribute_group snbep_uncore_pcu_format_group = {
 	.attrs = snbep_uncore_pcu_formats_attr,
 };
 
+static struct attribute_group snbep_uncore_qpi_format_group = {
+	.name = "format",
+	.attrs = snbep_uncore_qpi_formats_attr,
+};
+
 static struct intel_uncore_ops snbep_uncore_msr_ops = {
 	.init_box	= snbep_uncore_msr_init_box,
 	.disable_box	= snbep_uncore_msr_disable_box,
@@ -499,8 +514,13 @@ static struct intel_uncore_type snbep_uncore_qpi = {
 	.num_counters   = 4,
 	.num_boxes	= 2,
 	.perf_ctr_bits	= 48,
+	.perf_ctr	= SNBEP_PCI_PMON_CTR0,
+	.event_ctl	= SNBEP_PCI_PMON_CTL0,
+	.event_mask	= SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
+	.box_ctl	= SNBEP_PCI_PMON_BOX_CTL,
+	.ops		= &snbep_uncore_pci_ops,
 	.event_descs	= snbep_uncore_qpi_events,
-	SNBEP_UNCORE_PCI_COMMON_INIT(),
+	.format_group	= &snbep_uncore_qpi_format_group,
 };
 
 
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.h b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
index 47b1776..f385189 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.h
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.h
@@ -113,6 +113,10 @@
 				 SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \
 				 SNBEP_PCU_MSR_PMON_CTL_OCC_EDGE_DET)
 
+#define SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK	\
+				(SNBEP_PMON_RAW_EVENT_MASK | \
+				 SNBEP_PMON_CTL_EV_SEL_EXT)
+
 /* SNB-EP pci control register */
 #define SNBEP_PCI_PMON_BOX_CTL			0xf4
 #define SNBEP_PCI_PMON_CTL0			0xd8
--
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