linux-kernel - [PATCH 6/6 -tip] perf_counter: Add hardware interrupt events for nehalem, core2 and atom

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Date:	Wed, 01 Jul 2009 15:10:11 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	x86 maintainers <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: [PATCH 6/6 -tip] perf_counter: Add hardware interrupt events for
 nehalem, core2 and atom


Add hardware interrupt events for nehalem, core2 and atom

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@...il.com>
---
 arch/x86/kernel/cpu/perf_counter.c |   20 ++++++++++++++++++++
 1 files changed, 20 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_counter.c b/arch/x86/kernel/cpu/perf_counter.c
index 8f05226..4ef1838 100644
--- a/arch/x86/kernel/cpu/perf_counter.c
+++ b/arch/x86/kernel/cpu/perf_counter.c
@@ -394,6 +394,20 @@ static const u64 nehalem_hw_vector_event_ids[] =
 
 static u64 __read_mostly hw_interrupt_event_ids[PERF_COUNT_HW_INTERRUPT_MAX];
 
+static const u64 nehalem_hw_interrupt_event_ids[] =
+{
+  [PERF_COUNT_HW_INTERRUPT]		= 0x011D, /* HW_INT.RCV              */
+  [PERF_COUNT_HW_INTERRUPT_MASK]	= 0x021D, /* HW_INT.CYCLES_MASKED    */
+  [PERF_COUNT_HW_INTERRUPT_PENDING_MASK]= 0x041D, /* HW_INT.CYCLES_PENDING_AND_MASKED*/
+};
+
+static const u64 core2_atom_hw_interrupt_event_ids[] =
+{
+  [PERF_COUNT_HW_INTERRUPT]		= 0x00C8, /* HW_INT_RCV              */
+  [PERF_COUNT_HW_INTERRUPT_MASK]	= 0x01C6, /* CYCLES_INT_MASKED.CYCLES_INT_MASKED*/
+  [PERF_COUNT_HW_INTERRUPT_PENDING_MASK]= 0x02C6, /* CYCLES_INT_MASKED.CYCLES_INT_PENDING_AND_MASKED*/
+};
+
 static u64 intel_pmu_raw_event(u64 event)
 {
 #define CORE_EVNTSEL_EVENT_MASK		0x000000FFULL
@@ -1506,6 +1520,8 @@ static int intel_pmu_init(void)
 	case 29: /* six-core 45 nm xeon "Dunnington" */
 		memcpy(hw_cache_event_ids, core2_hw_cache_event_ids,
 		       sizeof(hw_cache_event_ids));
+		memcpy(hw_interrupt_event_ids, core2_atom_hw_interrupt_event_ids,
+		       sizeof(hw_interrupt_event_ids));
 
 		pr_cont("Core2 events, ");
 		break;
@@ -1515,12 +1531,16 @@ static int intel_pmu_init(void)
 		       sizeof(hw_cache_event_ids));
 		memcpy(hw_vector_event_ids, nehalem_hw_vector_event_ids,
 		       sizeof(hw_vector_event_ids));
+		memcpy(hw_interrupt_event_ids, nehalem_hw_interrupt_event_ids,
+		       sizeof(hw_interrupt_event_ids));
 
 		pr_cont("Nehalem/Corei7 events, ");
 		break;
 	case 28:
 		memcpy(hw_cache_event_ids, atom_hw_cache_event_ids,
 		       sizeof(hw_cache_event_ids));
+		memcpy(hw_interrupt_event_ids, core2_atom_hw_interrupt_event_ids,
+		       sizeof(hw_interrupt_event_ids));
 
 		pr_cont("Atom events, ");
 		break;
-- 
1.6.0.6



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