linux-kernel - Re: [PATCH 3/7] drivers/perf: hisi_pcie: Add more events for counting TLP bandwidth

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Date: Wed, 21 Feb 2024 17:40:14 +0800
From: Yicong Yang <yangyicong@...wei.com>
To: Jonathan Cameron <Jonathan.Cameron@...wei.com>
CC: <yangyicong@...ilicon.com>, <will@...nel.org>, <mark.rutland@....com>,
	<hejunhao3@...wei.com>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>,
	<prime.zeng@...ilicon.com>, <fanghao11@...wei.com>
Subject: Re: [PATCH 3/7] drivers/perf: hisi_pcie: Add more events for counting
 TLP bandwidth

On 2024/2/8 20:20, Jonathan Cameron wrote:
> On Sun, 4 Feb 2024 15:45:23 +0800
> Yicong Yang <yangyicong@...wei.com> wrote:
> 
>> From: Yicong Yang <yangyicong@...ilicon.com>
>>
>> A typical PCIe transaction is consisted of various TLP packets in both
>> direction. For counting bandwidth only memory read events are exported
>> currently. Add memory write and completion counting events of both
>> direction to complementation.
> 
> complementation?
> 

sorry for the typo. will fix.

>>
>> Signed-off-by: Yicong Yang <yangyicong@...ilicon.com>
> 
> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>

Thanks.

> 
>> ---
>>  drivers/perf/hisilicon/hisi_pcie_pmu.c | 8 ++++++++
>>  1 file changed, 8 insertions(+)
>>
>> diff --git a/drivers/perf/hisilicon/hisi_pcie_pmu.c b/drivers/perf/hisilicon/hisi_pcie_pmu.c
>> index 9623bed93876..83be3390686c 100644
>> --- a/drivers/perf/hisilicon/hisi_pcie_pmu.c
>> +++ b/drivers/perf/hisilicon/hisi_pcie_pmu.c
>> @@ -726,10 +726,18 @@ static struct attribute *hisi_pcie_pmu_events_attr[] = {
>>  	HISI_PCIE_PMU_EVENT_ATTR(rx_mrd_cnt, 0x10210),
>>  	HISI_PCIE_PMU_EVENT_ATTR(tx_mrd_latency, 0x0011),
>>  	HISI_PCIE_PMU_EVENT_ATTR(tx_mrd_cnt, 0x10011),
>> +	HISI_PCIE_PMU_EVENT_ATTR(rx_mwr_flux, 0x0104),
>> +	HISI_PCIE_PMU_EVENT_ATTR(rx_mwr_time, 0x10104),
>>  	HISI_PCIE_PMU_EVENT_ATTR(rx_mrd_flux, 0x0804),
>>  	HISI_PCIE_PMU_EVENT_ATTR(rx_mrd_time, 0x10804),
>> +	HISI_PCIE_PMU_EVENT_ATTR(rx_cpl_flux, 0x2004),
>> +	HISI_PCIE_PMU_EVENT_ATTR(rx_cpl_time, 0x12004),
>> +	HISI_PCIE_PMU_EVENT_ATTR(tx_mwr_flux, 0x0105),
>> +	HISI_PCIE_PMU_EVENT_ATTR(tx_mwr_time, 0x10105),
>>  	HISI_PCIE_PMU_EVENT_ATTR(tx_mrd_flux, 0x0405),
>>  	HISI_PCIE_PMU_EVENT_ATTR(tx_mrd_time, 0x10405),
>> +	HISI_PCIE_PMU_EVENT_ATTR(tx_cpl_flux, 0x1005),
>> +	HISI_PCIE_PMU_EVENT_ATTR(tx_cpl_time, 0x11005),
>>  	NULL
>>  };
>>  
> 
> .
>