From: John Garry <john.garry@huawei.com>
To: <Frank.li@nxp.com>, <will@kernel.org>, <mark.rutland@arm.com>,
<robh+dt@kernel.org>, <zhangshaokun@hisilicon.com>,
<qiangqing.zhang@nxp.com>
Cc: <linuxarm@huawei.com>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>, <acme@kernel.org>,
<jolsa@redhat.com>, <irogers@google.com>,
John Garry <john.garry@huawei.com>
Subject: [PATCH v2 0/4] perf drivers: Add sysfs identifier file
Date: Thu, 8 Oct 2020 17:26:17 +0800 [thread overview]
Message-ID: <1602149181-237415-1-git-send-email-john.garry@huawei.com> (raw)
To allow perf tool to identify a specific implementation of a PMU for
event alias matching and metric support, expose a per-PMU identifier file.
There is no standard format for the identifier string. It just should be
unique per HW implementation.
Typical methods to retrieve the information for the identifier string
can include:
- Hardcoding in the driver, matched via DT bindings compat string,
ACPI HID, or similar
- Directly from DT bindings property
- Read from some HW identification register
In this series, for the SMMUv3 PMU and HiSi uncore drivers, a HW ID
register is read for the identifier. For the imx8 ddr driver, the
identifier is hardcoded, matched via DT compat string.
Joakim Zhang (2):
bindings/perf/imx-ddr: update compatible string
perf/imx_ddr: Add system PMU identifier for userspace
John Garry (2):
drivers/perf: hisi: Add identifier sysfs file
perf/smmuv3: Support sysfs identifier file
.../devicetree/bindings/perf/fsl-imx-ddr.txt | 3 ++
drivers/perf/arm_smmuv3_pmu.c | 39 ++++++++++++++++
drivers/perf/fsl_imx8_ddr_perf.c | 45 +++++++++++++++++--
drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 16 +++++++
drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 16 +++++++
drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 16 +++++++
drivers/perf/hisilicon/hisi_uncore_pmu.c | 10 +++++
drivers/perf/hisilicon/hisi_uncore_pmu.h | 7 +++
8 files changed, 149 insertions(+), 3 deletions(-)
--
2.26.2
WARNING: multiple messages have this Message-ID (diff)
From: John Garry <john.garry@huawei.com>
To: <Frank.li@nxp.com>, <will@kernel.org>, <mark.rutland@arm.com>,
<robh+dt@kernel.org>, <zhangshaokun@hisilicon.com>,
<qiangqing.zhang@nxp.com>
Cc: devicetree@vger.kernel.org, irogers@google.com,
John Garry <john.garry@huawei.com>,
linuxarm@huawei.com, acme@kernel.org,
linux-kernel@vger.kernel.org, jolsa@redhat.com,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/4] perf drivers: Add sysfs identifier file
Date: Thu, 8 Oct 2020 17:26:17 +0800 [thread overview]
Message-ID: <1602149181-237415-1-git-send-email-john.garry@huawei.com> (raw)
To allow perf tool to identify a specific implementation of a PMU for
event alias matching and metric support, expose a per-PMU identifier file.
There is no standard format for the identifier string. It just should be
unique per HW implementation.
Typical methods to retrieve the information for the identifier string
can include:
- Hardcoding in the driver, matched via DT bindings compat string,
ACPI HID, or similar
- Directly from DT bindings property
- Read from some HW identification register
In this series, for the SMMUv3 PMU and HiSi uncore drivers, a HW ID
register is read for the identifier. For the imx8 ddr driver, the
identifier is hardcoded, matched via DT compat string.
Joakim Zhang (2):
bindings/perf/imx-ddr: update compatible string
perf/imx_ddr: Add system PMU identifier for userspace
John Garry (2):
drivers/perf: hisi: Add identifier sysfs file
perf/smmuv3: Support sysfs identifier file
.../devicetree/bindings/perf/fsl-imx-ddr.txt | 3 ++
drivers/perf/arm_smmuv3_pmu.c | 39 ++++++++++++++++
drivers/perf/fsl_imx8_ddr_perf.c | 45 +++++++++++++++++--
drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c | 16 +++++++
drivers/perf/hisilicon/hisi_uncore_hha_pmu.c | 16 +++++++
drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c | 16 +++++++
drivers/perf/hisilicon/hisi_uncore_pmu.c | 10 +++++
drivers/perf/hisilicon/hisi_uncore_pmu.h | 7 +++
8 files changed, 149 insertions(+), 3 deletions(-)
--
2.26.2
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2020-10-08 9:30 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-08 9:26 John Garry [this message]
2020-10-08 9:26 ` [PATCH v2 0/4] perf drivers: Add sysfs identifier file John Garry
2020-10-08 9:26 ` [PATCH v2 1/4] drivers/perf: hisi: Add identifier sysfs file John Garry
2020-10-08 9:26 ` John Garry
2020-10-08 9:26 ` [PATCH v2 2/4] bindings/perf/imx-ddr: update compatible string John Garry
2020-10-08 9:26 ` John Garry
2020-10-12 9:58 ` Joakim Zhang
2020-10-12 9:58 ` Joakim Zhang
2020-10-08 9:26 ` [PATCH v2 3/4] perf/imx_ddr: Add system PMU identifier for userspace John Garry
2020-10-08 9:26 ` John Garry
2020-10-08 9:26 ` [PATCH v2 4/4] perf/smmuv3: Support sysfs identifier file John Garry
2020-10-08 9:26 ` John Garry
2020-11-06 13:36 ` [PATCH v2 0/4] perf drivers: Add " John Garry
2020-11-06 13:36 ` John Garry
2020-11-25 15:44 ` Will Deacon
2020-11-25 15:44 ` Will Deacon
2020-11-25 16:00 ` John Garry
2020-11-25 16:00 ` John Garry
2020-11-26 1:35 ` Joakim Zhang
2020-11-26 1:35 ` Joakim Zhang
2020-11-26 11:35 ` John Garry
2020-11-26 11:35 ` John Garry
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1602149181-237415-1-git-send-email-john.garry@huawei.com \
--to=john.garry@huawei.com \
--cc=Frank.li@nxp.com \
--cc=acme@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=irogers@google.com \
--cc=jolsa@redhat.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxarm@huawei.com \
--cc=mark.rutland@arm.com \
--cc=qiangqing.zhang@nxp.com \
--cc=robh+dt@kernel.org \
--cc=will@kernel.org \
--cc=zhangshaokun@hisilicon.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.