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Message-ID: <20230816094619.3563784-3-shaojijie@huawei.com>
Date: Wed, 16 Aug 2023 17:46:19 +0800
From: Jijie Shao <shaojijie@...wei.com>
To: <will@...nel.org>, <jonathan.cameron@...wei.com>,
<mark.rutland@....com>
CC: <chenhao418@...wei.com>, <shaojijie@...wei.com>,
<shenjian15@...wei.com>, <wangjie125@...wei.com>,
<liuyonglong@...wei.com>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH drivers/perf: hisi: 2/2] drivers/perf: hisi: fix set wrong filter mode for running events issue
From: Hao Chen <chenhao418@...wei.com>
hns3_pmu_select_filter_mode() includes a series of mode judgments such
as global mode ,function mode, function-queue mode, port mode, port-tc
mode.
For a special scenario, command use parameter "bdf=0x3700,config=0x3,
queue=0x0", it is expected to enter function-queue mode, but event of
config 0x3 doesn't support func-queue mode, then it enter port-tc mode.
it's not up to expectations.
It shouldn't enter any modes but return -ENOENT.
So, add judgement of bdf parameter to fix it.
Fixes: 66637ab137b4 ("drivers/perf: hisi: add driver for HNS3 PMU")
Signed-off-by: Hao Chen <chenhao418@...wei.com>
Signed-off-by: Jijie Shao <shaojijie@...wei.com>
---
drivers/perf/hisilicon/hns3_pmu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/perf/hisilicon/hns3_pmu.c b/drivers/perf/hisilicon/hns3_pmu.c
index 6a4d04cbae91..7f38a9e489d4 100644
--- a/drivers/perf/hisilicon/hns3_pmu.c
+++ b/drivers/perf/hisilicon/hns3_pmu.c
@@ -1000,12 +1000,13 @@ static bool
hns3_pmu_is_enabled_port_tc_mode(struct perf_event *event,
struct hns3_pmu_event_attr *pmu_event)
{
+ u16 bdf = hns3_pmu_get_bdf(event);
u8 tc_id = hns3_pmu_get_tc(event);
if (!(pmu_event->filter_support & HNS3_PMU_FILTER_SUPPORT_PORT_TC))
return false;
- return tc_id != HNS3_PMU_FILTER_ALL_TC;
+ return (tc_id != HNS3_PMU_FILTER_ALL_TC) && (!bdf);
}
static bool
--
2.30.0
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