perf/x86/intel: Fix Core2,Atom,NHM,WSM cycles:pp events

Ingo reported that cycles:pp didn't work for him on some machines.

It turns out that in this commit:

  f0d1d90d335c perf/x86/intel: Disallow flags for most Core2/Atom/Nehalem/Westmere events

Andi forgot to explicitly allow that event when he
disabled event flags for PEBS on those uarchs.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Fixes: f0d1d90d335c ("perf/x86/intel: Disallow flags for most Core2/Atom/Nehalem/Westmere events")
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index ca69ea56c712b590876ff9c5289a839dc91158b7..813f75d71175e3a117f13ec53efe6856a0508bec 100644 (file)
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -558,6 +558,8 @@ struct event_constraint intel_core2_pebs_event_constraints[] = {
        INTEL_FLAGS_UEVENT_CONSTRAINT(0x00c5, 0x1), /* BR_INST_RETIRED.MISPRED */
        INTEL_FLAGS_UEVENT_CONSTRAINT(0x1fc7, 0x1), /* SIMD_INST_RETURED.ANY */
        INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0x1),    /* MEM_LOAD_RETIRED.* */
+       /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
+       INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x01),
        EVENT_CONSTRAINT_END
 };
 
@@ -565,6 +567,8 @@ struct event_constraint intel_atom_pebs_event_constraints[] = {
        INTEL_FLAGS_UEVENT_CONSTRAINT(0x00c0, 0x1), /* INST_RETIRED.ANY */
        INTEL_FLAGS_UEVENT_CONSTRAINT(0x00c5, 0x1), /* MISPREDICTED_BRANCH_RETIRED */
        INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0x1),    /* MEM_LOAD_RETIRED.* */
+       /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
+       INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x01),
        EVENT_CONSTRAINT_END
 };
 
@@ -588,6 +592,8 @@ struct event_constraint intel_nehalem_pebs_event_constraints[] = {
        INTEL_FLAGS_UEVENT_CONSTRAINT(0x20c8, 0xf), /* ITLB_MISS_RETIRED */
        INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0xf),    /* MEM_LOAD_RETIRED.* */
        INTEL_FLAGS_EVENT_CONSTRAINT(0xf7, 0xf),    /* FP_ASSIST.* */
+       /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
+       INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x0f),
        EVENT_CONSTRAINT_END
 };
 
@@ -603,6 +609,8 @@ struct event_constraint intel_westmere_pebs_event_constraints[] = {
        INTEL_FLAGS_UEVENT_CONSTRAINT(0x20c8, 0xf), /* ITLB_MISS_RETIRED */
        INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0xf),    /* MEM_LOAD_RETIRED.* */
        INTEL_FLAGS_EVENT_CONSTRAINT(0xf7, 0xf),    /* FP_ASSIST.* */
+       /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
+       INTEL_FLAGS_EVENT_CONSTRAINT(0x108000c0, 0x0f),
        EVENT_CONSTRAINT_END
 };