From: Will Deacon <will.deacon@arm.com>
To: Jeremy Linton <jeremy.linton@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org,
mark.rutland@arm.com, lorenzo.pieralisi@arm.com,
catalin.marinas@arm.com, peterz@infradead.org, mingo@redhat.com,
acme@kernel.org, alexander.shishkin@linux.intel.com,
mlangsdorf@redhat.com
Subject: Re: [PATCH 1/8] arm64: pmu: add fallback probe table
Date: Wed, 15 Jun 2016 11:59:43 +0100 [thread overview]
Message-ID: <20160615105943.GG24029@arm.com> (raw)
In-Reply-To: <1465511013-10742-2-git-send-email-jeremy.linton@arm.com>
On Thu, Jun 09, 2016 at 05:23:26PM -0500, Jeremy Linton wrote:
> From: Mark Salter <msalter@redhat.com>
>
> In preparation for ACPI support, add a pmu_probe_info table to
> the arm_pmu_device_probe() call. This table gets used when
> probing in the absence of a devicetree node for PMU.
>
> Signed-off-by: Mark Salter <msalter@redhat.com>
> Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
> ---
> arch/arm64/kernel/perf_event.c | 8 +++++++-
> include/linux/perf/arm_pmu.h | 3 +++
> 2 files changed, 10 insertions(+), 1 deletion(-)
This is likely to do the wrong thing for big/little systems, so I'm not
keen on this for DT. We should mandate that the PMU is described there.
If you need this as a building block for ACPI, please ensure that the
code is only executed when booting via ACPI.
Will
WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/8] arm64: pmu: add fallback probe table
Date: Wed, 15 Jun 2016 11:59:43 +0100 [thread overview]
Message-ID: <20160615105943.GG24029@arm.com> (raw)
In-Reply-To: <1465511013-10742-2-git-send-email-jeremy.linton@arm.com>
On Thu, Jun 09, 2016 at 05:23:26PM -0500, Jeremy Linton wrote:
> From: Mark Salter <msalter@redhat.com>
>
> In preparation for ACPI support, add a pmu_probe_info table to
> the arm_pmu_device_probe() call. This table gets used when
> probing in the absence of a devicetree node for PMU.
>
> Signed-off-by: Mark Salter <msalter@redhat.com>
> Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
> ---
> arch/arm64/kernel/perf_event.c | 8 +++++++-
> include/linux/perf/arm_pmu.h | 3 +++
> 2 files changed, 10 insertions(+), 1 deletion(-)
This is likely to do the wrong thing for big/little systems, so I'm not
keen on this for DT. We should mandate that the PMU is described there.
If you need this as a building block for ACPI, please ensure that the
code is only executed when booting via ACPI.
Will
next prev parent reply other threads:[~2016-06-15 10:59 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-09 22:23 [PATCH 0/8] arm64: pmu: Detect multiple PMU types in an ACPI system Jeremy Linton
2016-06-09 22:23 ` Jeremy Linton
2016-06-09 22:23 ` [PATCH 1/8] arm64: pmu: add fallback probe table Jeremy Linton
2016-06-09 22:23 ` Jeremy Linton
2016-06-15 10:59 ` Will Deacon [this message]
2016-06-15 10:59 ` Will Deacon
2016-06-09 22:23 ` [PATCH 2/8] arm64: pmu: Probe default hw/cache counters Jeremy Linton
2016-06-09 22:23 ` Jeremy Linton
2016-06-15 11:14 ` Will Deacon
2016-06-15 11:14 ` Will Deacon
2016-06-09 22:23 ` [PATCH 3/8] arm64: pmu: Add support for probing with ACPI Jeremy Linton
2016-06-09 22:23 ` Jeremy Linton
2016-06-15 11:33 ` Will Deacon
2016-06-15 11:33 ` Will Deacon
2016-06-15 15:07 ` Jeremy Linton
2016-06-15 15:07 ` Jeremy Linton
2016-06-09 22:23 ` [PATCH 4/8] arm: arm64: Add routine to determine cpuid of other cpus Jeremy Linton
2016-06-09 22:23 ` Jeremy Linton
2016-06-20 16:49 ` Punit Agrawal
2016-06-20 16:49 ` Punit Agrawal
2016-06-09 22:23 ` [PATCH 5/8] arm: arm64: pmu: Assign platform PMU CPU affinity Jeremy Linton
2016-06-09 22:23 ` Jeremy Linton
2016-06-15 13:09 ` Will Deacon
2016-06-15 13:09 ` Will Deacon
2016-06-20 16:40 ` Punit Agrawal
2016-06-20 16:40 ` Punit Agrawal
2016-06-20 16:49 ` Jeremy Linton
2016-06-20 16:49 ` Jeremy Linton
2016-06-20 17:01 ` Punit Agrawal
2016-06-20 17:01 ` Punit Agrawal
2016-06-09 22:23 ` [PATCH 6/8] arm64: pmu: Add routines for detecting differing PMU types in the system Jeremy Linton
2016-06-09 22:23 ` Jeremy Linton
2016-06-09 22:23 ` [PATCH 7/8] arm64: pmu: Enable multiple PMUs in an ACPI system Jeremy Linton
2016-06-09 22:23 ` Jeremy Linton
2016-06-15 13:22 ` Will Deacon
2016-06-15 13:22 ` Will Deacon
2016-06-15 15:21 ` Jeremy Linton
2016-06-15 15:21 ` Jeremy Linton
2016-06-15 15:30 ` Will Deacon
2016-06-15 15:30 ` Will Deacon
2016-06-20 16:37 ` Punit Agrawal
2016-06-20 16:37 ` Punit Agrawal
2016-06-20 21:44 ` Jeremy Linton
2016-06-20 21:44 ` Jeremy Linton
2016-06-21 8:34 ` Punit Agrawal
2016-06-21 8:34 ` Punit Agrawal
2016-06-09 22:23 ` [PATCH 8/8] MAINTAINERS: Tweak ARM PMU maintainers Jeremy Linton
2016-06-09 22:23 ` Jeremy Linton
2016-06-20 16:47 ` [PATCH 0/8] arm64: pmu: Detect multiple PMU types in an ACPI system Punit Agrawal
2016-06-20 16:47 ` Punit Agrawal
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=20160615105943.GG24029@arm.com \
--to=will.deacon@arm.com \
--cc=acme@kernel.org \
--cc=alexander.shishkin@linux.intel.com \
--cc=catalin.marinas@arm.com \
--cc=jeremy.linton@arm.com \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=mark.rutland@arm.com \
--cc=mingo@redhat.com \
--cc=mlangsdorf@redhat.com \
--cc=peterz@infradead.org \
/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.