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: 25+ 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 ` [PATCH 1/8] arm64: pmu: add fallback probe table Jeremy Linton
2016-06-15 10:59 ` Will Deacon [this message]
2016-06-09 22:23 ` [PATCH 2/8] arm64: pmu: Probe default hw/cache counters Jeremy Linton
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
2016-06-15 11:33 ` Will Deacon
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
2016-06-20 16:49 ` Punit Agrawal
2016-06-09 22:23 ` [PATCH 5/8] arm: arm64: pmu: Assign platform PMU CPU affinity Jeremy Linton
2016-06-15 13:09 ` Will Deacon
2016-06-20 16:40 ` Punit Agrawal
2016-06-20 16:49 ` Jeremy Linton
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 ` [PATCH 7/8] arm64: pmu: Enable multiple PMUs in an ACPI system Jeremy Linton
2016-06-15 13:22 ` Will Deacon
2016-06-15 15:21 ` Jeremy Linton
2016-06-15 15:30 ` Will Deacon
2016-06-20 16:37 ` Punit Agrawal
2016-06-20 21:44 ` Jeremy Linton
2016-06-21 8:34 ` Punit Agrawal
2016-06-09 22:23 ` [PATCH 8/8] MAINTAINERS: Tweak ARM PMU maintainers Jeremy Linton
2016-06-20 16:47 ` [PATCH 0/8] arm64: pmu: Detect multiple PMU types in an ACPI system Punit Agrawal
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