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Groups > linux.kernel > #1415344

[PATCH v3 0/2] arm/arm64: Fix architected timer interrupt trigger

From Marc Zyngier <marc.zyngier@arm.com>
Newsgroups linux.kernel
Subject [PATCH v3 0/2] arm/arm64: Fix architected timer interrupt trigger
Date 2016-06-06 20:00 +0200
Message-ID <rH6YF-84b-7@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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I've noticed a while ago that we had a pretty creative approach to the
arch timer trigger, with some platform describing as edge-triggered
something that is architecturally a level interrupt.

This short patch series tries to address it in two ways:

- Enforce the level aspect of the interrupt in the timer driver (and
  shout at the user if the firmware describes it as edge)
- Repaint all the in-tree platforms that are obviously doing the wrong
  thing.

Hopefully, this will stop DTs that are wrong from being blindly
copy/pasted.

Thanks,

	M.

- From v2: Fix all in-tree device-trees.

Marc Zyngier (2):
  clocksource/arm_arch_timer: Force per-CPU interrupt to be
    level-triggered
  arm64: dts: Fix broken architected timer interrupt trigger

 arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi  |  8 +++----
 arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi        |  8 +++----
 arch/arm64/boot/dts/apm/apm-storm.dtsi             |  8 +++----
 arch/arm64/boot/dts/broadcom/ns2.dtsi              |  8 +++----
 arch/arm64/boot/dts/cavium/thunder-88xx.dtsi       |  8 +++----
 arch/arm64/boot/dts/exynos/exynos7.dtsi            |  8 +++----
 arch/arm64/boot/dts/freescale/fsl-ls1043a.dtsi     |  8 +++----
 arch/arm64/boot/dts/marvell/armada-ap806.dtsi      |  8 +++----
 .../boot/dts/socionext/uniphier-ph1-ld20.dtsi      |  8 +++----
 arch/arm64/boot/dts/xilinx/zynqmp.dtsi             |  8 +++----
 drivers/clocksource/arm_arch_timer.c               | 27 +++++++++++++++++++---
 11 files changed, 64 insertions(+), 43 deletions(-)

-- 
2.1.4

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Thread

[PATCH v3 0/2] arm/arm64: Fix architected timer interrupt trigger Marc Zyngier <marc.zyngier@arm.com> - 2016-06-06 20:00 +0200
  [PATCH v3 2/2] arm64: dts: Fix broken architected timer interrupt trigger Marc Zyngier <marc.zyngier@arm.com> - 2016-06-06 20:00 +0200
    Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer interrupt  trigger Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2016-06-07 09:10 +0200
    Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer interrupt  trigger Michal Simek <michal.simek@xilinx.com> - 2016-06-07 09:40 +0200
    Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer  interrupt trigger Carlo Caione <carlo@caione.org> - 2016-06-09 17:30 +0200
    Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer interrupt  trigger David Daney <ddaney.cavm@gmail.com> - 2016-06-09 23:10 +0200
      Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer  interrupt trigger Marc Zyngier <marc.zyngier@arm.com> - 2016-06-10 09:30 +0200
        Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer interrupt  trigger David Daney <ddaney.cavm@gmail.com> - 2016-06-10 19:00 +0200
          Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer interrupt  trigger Marc Zyngier <marc.zyngier@arm.com> - 2016-06-10 19:00 +0200
            Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer  interrupt trigger Marc Zyngier <marc.zyngier@arm.com> - 2016-06-11 12:10 +0200
    Re: [PATCH v3 2/2] arm64: dts: Fix broken architected timer interrupt trigger Duc Dang <dhdang@apm.com> - 2016-06-10 23:50 +0200

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