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

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.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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