linux-kernel - Re: [PATCH v2 4/9] drivers/perf: hisi: Extract the event filter check of L3C PMU

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Message-ID: <20250826140647.0000403b@huawei.com>
Date: Tue, 26 Aug 2025 14:06:47 +0100
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Yushan Wang <wangyushan12@...wei.com>
CC: <will@...nel.org>, <mark.rutland@....com>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
	<robin.murphy@....com>, <yangyicong@...wei.com>, <liuyonglong@...wei.com>,
	<wanghuiqiang@...wei.com>, <prime.zeng@...ilicon.com>,
	<hejunhao3@...artners.com>
Subject: Re: [PATCH v2 4/9] drivers/perf: hisi: Extract the event filter
 check of L3C PMU

On Thu, 21 Aug 2025 21:50:44 +0800
Yushan Wang <wangyushan12@...wei.com> wrote:

> From: Yicong Yang <yangyicong@...ilicon.com>
> 
> L3C PMU has 4 filter options which are sharing perf_event_attr::config1.
> Driver will check config1 to see whether a certain event has a filter
> setting. It'll be incorrect if we make use of other bits in config1
> for non-filter options. So check whether each filter options are set
> directly in a separate function instead.
> 
> Signed-off-by: Yicong Yang <yangyicong@...ilicon.com>
> Signed-off-by: Yushan Wang <wangyushan12@...wei.com>
Acked-by: Jonathan Cameron <jonathan.cameron@...wei.com>