From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To: Yicong Yang <yangyicong@huawei.com>
Cc: <will@kernel.org>, <mark.rutland@arm.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <hejunhao3@huawei.com>,
<prime.zeng@hisilicon.com>, <linuxarm@huawei.com>,
<yangyicong@hisilicon.com>, <wangyushan12@huawei.com>
Subject: Re: [PATCH v2 5/8] drivers/perf: hisi: Relax the event number check of v2 PMUs
Date: Fri, 21 Mar 2025 11:14:20 +0000 [thread overview]
Message-ID: <20250321111420.00003182@huawei.com> (raw)
In-Reply-To: <20250321073846.23507-6-yangyicong@huawei.com>
On Fri, 21 Mar 2025 15:38:43 +0800
Yicong Yang <yangyicong@huawei.com> wrote:
> From: Junhao He <hejunhao3@huawei.com>
>
> The supported event number range of each Uncore PMUs is provided by
> each driver in hisi_pmu::check_event and out of range events
> will be rejected. A later version with expanded event number range
> needs to register the PMU with updated hisi_pmu::check_event
> even if it's the only update, which means the expanded events
> cannot be used unless the driver's updated. However the unsupported
> events won't be counted by the hardware so we can relax the event
> number check to allow the use the expanded events.
>
> Signed-off-by: Junhao He <hejunhao3@huawei.com>
> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
next prev parent reply other threads:[~2025-03-21 11:14 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-21 7:38 [PATCH v2 0/8] General updates and two new drivers for HiSilicon Uncore PMU Yicong Yang
2025-03-21 7:38 ` [PATCH v2 1/8] drivers/perf: hisi: Simplify the probe process for each DDRC version Yicong Yang
2025-03-21 7:38 ` [PATCH v2 2/8] drivers/perf: hisi: Add support for HiSilicon DDRC v3 PMU driver Yicong Yang
2025-03-21 7:38 ` [PATCH v2 3/8] drivers/perf: hisi: Use ACPI driver_data to retrieve SLLC PMU information Yicong Yang
2025-03-21 11:13 ` Jonathan Cameron
2025-03-21 7:38 ` [PATCH v2 4/8] drivers/perf: hisi: Add support for HiSilicon SLLC v3 PMU driver Yicong Yang
2025-03-21 7:38 ` [PATCH v2 5/8] drivers/perf: hisi: Relax the event number check of v2 PMUs Yicong Yang
2025-03-21 11:14 ` Jonathan Cameron [this message]
2025-03-21 7:38 ` [PATCH v2 6/8] drivers/perf: hisi: Support PMUs with no interrupt Yicong Yang
2025-03-21 7:38 ` [PATCH v2 7/8] drivers/perf: hisi: Add support for HiSilicon NoC PMU Yicong Yang
2025-03-21 7:38 ` [PATCH v2 8/8] drivers/perf: hisi: Add support for HiSilicon MN PMU driver Yicong Yang
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