From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv2 3/9] arm: perf: make PMU probing data-driven
Date: Mon, 27 Oct 2014 13:37:38 -0700 [thread overview]
Message-ID: <544EAD12.2040704@codeaurora.org> (raw)
In-Reply-To: <1414411599-1938-4-git-send-email-mark.rutland@arm.com>
On 10/27/2014 05:06 AM, Mark Rutland wrote:
> The current PMU probing logic consists of a single switch statement,
> which means that the core arm_pmu core in perf_event_cpu.c needs to know
> about every CPU PMU variant supported by a driver using the arm_pmu
> framework. This makes it rather difficult to decouple the drivers from
> the (otherwise generic) probing code.
>
> The patch refactors that switch statement to a table-driven lookup,
> separating the logic and knowledge (in the form of the table). Later
> patches will split the table across the relevant PMU drivers, which can
> pass their tables to the generic probing function.
>
> Signed-off-by: Mark Rutland <mark.rutland@arm.com>
> Reviewed-by: Will Deacon <will.deacon@arm.com>
>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2014-10-27 20:37 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-27 12:06 [PATCHv2 0/9] Prepatory rework for multi-PMU support Mark Rutland
2014-10-27 12:06 ` [PATCHv2 1/9] arm: perf: factor out callchain code Mark Rutland
2014-10-27 12:06 ` [PATCHv2 2/9] arm: perf: add missing pr_info newlines Mark Rutland
2014-10-27 20:37 ` Stephen Boyd
2014-10-27 12:06 ` [PATCHv2 3/9] arm: perf: make PMU probing data-driven Mark Rutland
2014-10-27 20:37 ` Stephen Boyd [this message]
2014-10-27 12:06 ` [PATCHv2 4/9] arm: perf: use IDR types for CPU PMUs Mark Rutland
2014-10-27 12:06 ` [PATCHv2 5/9] arm: perf: limit size of accounting data Mark Rutland
2014-10-27 21:13 ` Stephen Boyd
2014-10-27 12:06 ` [PATCHv2 6/9] arm: perf: kill get_hw_events() Mark Rutland
2014-10-27 20:37 ` Stephen Boyd
2014-10-27 12:06 ` [PATCHv2 7/9] arm: perf: fold percpu_pmu into pmu_hw_events Mark Rutland
2014-10-27 12:06 ` [PATCHv2 8/9] arm: perf: dynamically allocate cpu hardware data Mark Rutland
2014-10-27 20:37 ` Stephen Boyd
2014-10-27 12:06 ` [PATCHv2 9/9] arm: perf: fold hotplug notifier into arm_pmu Mark Rutland
2014-10-27 20:37 ` Stephen Boyd
2014-10-28 14:46 ` Mark Rutland
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