Thread (17 messages) flat view 17 messages, 2 authors, 2016-06-15
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[PATCH 1/8] arm64: pmu: add fallback probe table

From: Will Deacon <hidden>
Date: 2016-06-15 10:59:43
Also in: linux-acpi

On Thu, Jun 09, 2016 at 05:23:26PM -0500, Jeremy Linton wrote:
From: Mark Salter <redacted>

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 <redacted>
Signed-off-by: Jeremy Linton <redacted>
---
 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
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