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Armada 375/38x perf support, and a bonus irqchip driver simplification

Ezequiel Garcia linux-arm-kernel 1 version New

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  1. v1 Latest0 of 7 patches 0 repliesNew

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Cover letter [PATCH 0/7] Armada 375/38x perf support, and a bonus irqchip driver simplification
Quoted 34 lines · Jason Cooper
Quoted 24 lines · Ezequiel Garcia
Quoted 23 lines · Thomas Petazzoni

Jason, Ezequiel,

Quoted 20 lines · Jason Cooper
Quoted 18 lines · Ezequiel Garcia

This patchset enables support for perf hardware events, by enabling the PMU interrupts in the irqchip driver.

While doing this, we noticed the driver could use some cleaning to simplify the overly complex implementation of the .map(), .unmask() and .mask() functions.

The first three patches are the result of this cleaning effort, while the rest of the series is the Perf support for Armada 375 and Armada 38x SoCs.

The series is based on v3.18-rc1.

Ezequiel Garcia (7):
irqchip: armada-370-xp: Simplify interrupt map, mask and unmask
irqchip: armada-370-xp: Initialize per cpu registers when CONFIG_SMP=N
irqchip: armada-370-xp: Introduce a is_percpu_irq() helper for
readability
irqchip: armada-370-xp: Enable Performance Counter interrupts

Quoted 8 lines
Quoted 3 lines
Quoted 2 lines

Patches 1 to 4 tentatively applied to irqchip/mvebu. Things have been quiet, so let's get it in next for some more test coverage.

Jason, please consider *only* patch 1 for inclusion, as long as we have Gregory's Ack on it. I don't want to break the irqchip driver because of a clean-up! On the other side, if such weird handling is needed, we need find why and document it.

Quoted 8 lines

No sweat. I've now rolled irqchip/mvebu back to:

aaae00a7fa86 irqchip: armada-370-xp: Simplify interrupt map, mask and unmask

and an updated for-next is being build-tested and pushed hopefully before Stephen gets his cup of coffee. :)

Jason,

Please drop that one as well. Gregory and I have been discussing some more and we concluded that the change is wrong.

I'm working on a new series, but it'll take some time.

Thanks and sorry for the huge delay,

Signature · 3 lines
Ezequiel Garc?a, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com

Read the cover letter in its thread