From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
peterz@infradead.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
James Clark <james.clark@arm.com>, Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
linux-arm-kernel@lists.infradead.org, x86@kernel.org,
Thomas Gleixner <tglx@linutronix.de>,
Borislav Petkov <bp@alien8.de>
Subject: [PATCH V2 4/4] x86/perf: Assert all platform event flags are within PERF_EVENT_FLAG_ARCH
Date: Mon, 5 Sep 2022 11:12:39 +0530 [thread overview]
Message-ID: <20220905054239.324029-5-anshuman.khandual@arm.com> (raw)
In-Reply-To: <20220905054239.324029-1-anshuman.khandual@arm.com>
Ensure all platform specific event flags are within PERF_EVENT_FLAG_ARCH.
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: x86@kernel.org
Cc: linux-perf-users@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
arch/x86/events/perf_event.h | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index ba3d24a6a4ec..12136a33e9b7 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -86,6 +86,26 @@ static inline bool constraint_match(struct event_constraint *c, u64 ecode)
#define PERF_X86_EVENT_AMD_BRS 0x10000 /* AMD Branch Sampling */
#define PERF_X86_EVENT_PEBS_LAT_HYBRID 0x20000 /* ld and st lat for hybrid */
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_PEBS_LDLAT) == PERF_X86_EVENT_PEBS_LDLAT);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_PEBS_ST) == PERF_X86_EVENT_PEBS_ST);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_PEBS_ST_HSW) == PERF_X86_EVENT_PEBS_ST_HSW);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_PEBS_LD_HSW) == PERF_X86_EVENT_PEBS_LD_HSW);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_PEBS_NA_HSW) == PERF_X86_EVENT_PEBS_NA_HSW);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_EXCL) == PERF_X86_EVENT_EXCL);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_DYNAMIC) == PERF_X86_EVENT_DYNAMIC);
+
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_EXCL_ACCT) == PERF_X86_EVENT_EXCL_ACCT);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_AUTO_RELOAD) == PERF_X86_EVENT_AUTO_RELOAD);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_LARGE_PEBS) == PERF_X86_EVENT_LARGE_PEBS);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_PEBS_VIA_PT) == PERF_X86_EVENT_PEBS_VIA_PT);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_PAIR) == PERF_X86_EVENT_PAIR);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_LBR_SELECT) == PERF_X86_EVENT_LBR_SELECT);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_TOPDOWN) == PERF_X86_EVENT_TOPDOWN);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_PEBS_STLAT) == PERF_X86_EVENT_PEBS_STLAT);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_AMD_BRS) == PERF_X86_EVENT_AMD_BRS);
+static_assert((PERF_EVENT_FLAG_ARCH & PERF_X86_EVENT_PEBS_LAT_HYBRID)
+ == PERF_X86_EVENT_PEBS_LAT_HYBRID);
+
static inline bool is_topdown_count(struct perf_event *event)
{
return event->hw.flags & PERF_X86_EVENT_TOPDOWN;
--
2.25.1
next prev parent reply other threads:[~2022-09-05 5:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-05 5:42 [PATCH V2 0/4] perf/core: Assert PERF_EVENT_FLAG_ARCH is followed Anshuman Khandual
2022-09-05 5:42 ` [PATCH V2 1/4] perf/core: Expand PERF_EVENT_FLAG_ARCH Anshuman Khandual
2022-09-05 5:42 ` [PATCH V2 2/4] perf/core: Assert PERF_EVENT_FLAG_ARCH does not overlap with generic flags Anshuman Khandual
2022-09-05 5:42 ` [PATCH V2 3/4] arm64/perf: Assert all platform event flags are within PERF_EVENT_FLAG_ARCH Anshuman Khandual
2022-09-05 9:10 ` James Clark
2022-09-06 2:57 ` Anshuman Khandual
2022-09-05 5:42 ` Anshuman Khandual [this message]
2022-09-06 19:22 ` [PATCH V2 4/4] x86/perf: " Peter Zijlstra
2022-09-07 5:27 ` Anshuman Khandual
2022-09-07 8:30 ` Peter Zijlstra
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