perf/x86/intel: Add Haswell PEBS support

Add simple PEBS support for Haswell.

The constraints are similar to SandyBridge with a few new
events.

Reviewed-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Andi Kleen <ak@linux.jf.intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/r/1371515812-9646-4-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index 259ac3f..fb7fe44 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -636,6 +636,8 @@ extern struct event_constraint intel_snb_pebs_event_constraints[];
 
 extern struct event_constraint intel_ivb_pebs_event_constraints[];
 
+extern struct event_constraint intel_hsw_pebs_event_constraints[];
+
 struct event_constraint *intel_pebs_constraints(struct perf_event *event);
 
 void intel_pmu_pebs_enable(struct perf_event *event);

diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 4e995af..4a4c4ba 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -889,7 +889,8 @@ static inline bool intel_pmu_needs_lbr_smpl(struct perf_event *event)
                return true;
 
        /* implicit branch sampling to correct PEBS skid */
-       if (x86_pmu.intel_cap.pebs_trap && event->attr.precise_ip > 1)
+       if (x86_pmu.intel_cap.pebs_trap && event->attr.precise_ip > 1 &&
+           x86_pmu.intel_cap.pebs_format < 2)
                return true;
 
        return false;
@@ -2265,8 +2266,9 @@ __init int intel_pmu_init(void)
                intel_pmu_lbr_init_snb();
 
                x86_pmu.event_constraints = intel_hsw_event_constraints;
-
+               x86_pmu.pebs_constraints = intel_hsw_pebs_event_constraints;
                x86_pmu.extra_regs = intel_snb_extra_regs;
+               x86_pmu.pebs_aliases = intel_pebs_aliases_snb;
                /* all extra regs are per-cpu when HT is on */
                x86_pmu.er_flags |= ERF_HAS_RSP_1;
                x86_pmu.er_flags |= ERF_NO_HT_SHARING;

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 2a63d13..e83148f 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -564,6 +564,42 @@ struct event_constraint intel_ivb_pebs_event_constraints[] = {
         EVENT_CONSTRAINT_END
 };
 
+struct event_constraint intel_hsw_pebs_event_constraints[] = {
+       INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
+       INTEL_UEVENT_CONSTRAINT(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
+       INTEL_UEVENT_CONSTRAINT(0x02c2, 0xf), /* UOPS_RETIRED.RETIRE_SLOTS */
+       INTEL_EVENT_CONSTRAINT(0xc4, 0xf),    /* BR_INST_RETIRED.* */
+       INTEL_UEVENT_CONSTRAINT(0x01c5, 0xf), /* BR_MISP_RETIRED.CONDITIONAL */
+       INTEL_UEVENT_CONSTRAINT(0x04c5, 0xf), /* BR_MISP_RETIRED.ALL_BRANCHES */
+       INTEL_UEVENT_CONSTRAINT(0x20c5, 0xf), /* BR_MISP_RETIRED.NEAR_TAKEN */
+       INTEL_EVENT_CONSTRAINT(0xcd, 0x8),    /* MEM_TRANS_RETIRED.* */
+       /* MEM_UOPS_RETIRED.STLB_MISS_LOADS */
+       INTEL_UEVENT_CONSTRAINT(0x11d0, 0xf),
+       /* MEM_UOPS_RETIRED.STLB_MISS_STORES */
+       INTEL_UEVENT_CONSTRAINT(0x12d0, 0xf),
+       INTEL_UEVENT_CONSTRAINT(0x21d0, 0xf), /* MEM_UOPS_RETIRED.LOCK_LOADS */
+       INTEL_UEVENT_CONSTRAINT(0x41d0, 0xf), /* MEM_UOPS_RETIRED.SPLIT_LOADS */
+       /* MEM_UOPS_RETIRED.SPLIT_STORES */
+       INTEL_UEVENT_CONSTRAINT(0x42d0, 0xf),
+       INTEL_UEVENT_CONSTRAINT(0x81d0, 0xf), /* MEM_UOPS_RETIRED.ALL_LOADS */
+       INTEL_UEVENT_CONSTRAINT(0x82d0, 0xf), /* MEM_UOPS_RETIRED.ALL_STORES */
+       INTEL_UEVENT_CONSTRAINT(0x01d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L1_HIT */
+       INTEL_UEVENT_CONSTRAINT(0x02d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L2_HIT */
+       INTEL_UEVENT_CONSTRAINT(0x04d1, 0xf), /* MEM_LOAD_UOPS_RETIRED.L3_HIT */
+       /* MEM_LOAD_UOPS_RETIRED.HIT_LFB */
+       INTEL_UEVENT_CONSTRAINT(0x40d1, 0xf),
+       /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_MISS */
+       INTEL_UEVENT_CONSTRAINT(0x01d2, 0xf),
+       /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.XSNP_HIT */
+       INTEL_UEVENT_CONSTRAINT(0x02d2, 0xf),
+       /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.LOCAL_DRAM */
+       INTEL_UEVENT_CONSTRAINT(0x01d3, 0xf),
+       INTEL_UEVENT_CONSTRAINT(0x04c8, 0xf), /* HLE_RETIRED.Abort */
+       INTEL_UEVENT_CONSTRAINT(0x04c9, 0xf), /* RTM_RETIRED.Abort */
+
+       EVENT_CONSTRAINT_END
+};
+
 struct event_constraint *intel_pebs_constraints(struct perf_event *event)
 {
        struct event_constraint *c;