From: Will Deacon <will@kernel.org>
To: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 3/3] arm64: perf: Correct the event index in sysfs
Date: Mon, 20 Jul 2020 11:20:34 +0100 [thread overview]
Message-ID: <20200720102034.GC11516@willie-the-truck> (raw)
In-Reply-To: <1592487344-30555-3-git-send-email-zhangshaokun@hisilicon.com>
On Thu, Jun 18, 2020 at 09:35:44PM +0800, Shaokun Zhang wrote:
> When PMU event ID is equal or greater than 0x4000, it will be reduced
> by 0x4000 and it is not the raw number in the sysfs. Let's correct it
> and obtain the raw event ID.
>
> Before this patch:
> cat /sys/bus/event_source/devices/armv8_pmuv3_0/events/sample_feed
> event=0x001
> After this patch:
> cat /sys/bus/event_source/devices/armv8_pmuv3_0/events/sample_feed
> event=0x4001
Oops, I'll queue this one with a cc stable.
Thanks,
Will
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next prev parent reply other threads:[~2020-07-20 11:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-18 13:35 [PATCH v3 1/3] arm64: perf: Add support caps in sysfs Shaokun Zhang
2020-06-18 13:35 ` [PATCH v3 2/3] arm64: perf: Expose some new events via sysfs Shaokun Zhang
2020-07-20 10:16 ` Will Deacon
2020-06-18 13:35 ` [PATCH v3 3/3] arm64: perf: Correct the event index in sysfs Shaokun Zhang
2020-07-20 10:20 ` Will Deacon [this message]
2020-07-07 13:33 ` [PATCH v3 1/3] arm64: perf: Add support caps " Shaokun Zhang
2020-07-20 10:15 ` Will Deacon
2020-07-20 10:50 ` Mark Rutland
2020-07-20 10:54 ` Will Deacon
2020-07-20 13:11 ` Shaokun Zhang
2020-07-21 8:05 ` Shaokun Zhang
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