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From:   Xu YiPing <xuyiping@hisilicon.com>
To:     <xuyiping@hisilicon.com>, <catalin.marinas@arm.com>,
        <mark.rutland@arm.com>, <will.deacon@arm.com>,
        <namhyung@kernel.org>, <jolsa@redhat.com>,
        <alexander.shishkin@linux.intel.com>, <acme@kernel.org>,
        <mingo@redhat.com>, <peterz@infradead.org>,
        <julien.thierry@arm.com>
CC:     <linux-kernel@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH v2] arm64: perf: remove unsupported events for Cortex-A73
Date:   Wed, 15 Nov 2017 15:39:26 +0800
Message-ID: <1510731566-22016-1-git-send-email-xuyiping@hisilicon.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
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bus access read/write events are not supported in A73, based on the
Cortex-A73 TRM r0p2, section 11.9 Events (pages 11-457 to 11-460).

Fixes: 5561b6c5e981 "arm64: perf: add support for Cortex-A73"
Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
---
 arch/arm64/kernel/perf_event.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 9eaef51..3affca3 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -262,12 +262,6 @@ static const unsigned armv8_a73_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
 
 	[C(L1D)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD,
 	[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR,
-
-	[C(NODE)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
-	[C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
-
-	[C(NODE)][C(OP_READ)][C(RESULT_ACCESS)]	= ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
-	[C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
 };
 
 static const unsigned armv8_thunder_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
-- 
2.7.4


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