From: marc.zyngier@arm•com (Marc Zyngier)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v3 13/21] ARM: omap: convert wakeupgen to stacked domains
Date: Thu, 15 Jan 2015 14:28:53 +0000 [thread overview]
Message-ID: <871tmwi0d6.fsf@approximate.cambridge.arm.com> (raw)
In-Reply-To: <20150114222814.GU2419@atomide.com> (Tony Lindgren's message of "Wed, 14 Jan 2015 22:28:14 +0000")
On Wed, Jan 14 2015 at 10:28:14 pm GMT, Tony Lindgren <tony@atomide•com> wrote:
> * Marc Zyngier <marc.zyngier@arm•com> [150112 10:30]:
>> OMAP4/5 has been (ab)using the gic_arch_extn to provide
>> wakeup from suspend, and it makes a lot of sense to convert
>> this code to use stacked domains instead.
>>
>> This patch does just this, updating the DT files to actually
>> reflect what the HW provides.
>>
>> BIG FAT WARNING: because the DTs were so far lying by not
>> exposing the WUGEN HW block, kernels with this patch applied
>> won't have any suspend-resume facility when booted with old DTs,
>> and old kernels with updated DTs won't even boot.
>>
>> On a platform with this patch applied, the system looks like
>> this:
>>
>> root at bacon-fat:~# cat /proc/interrupts
>> CPU0 CPU1
>> 16: 0 0 WUGEN 37 gp_timer
>> 19: 233799 155916 GIC 27 arch_timer
>> 23: 0 0 WUGEN 9 l3-dbg-irq
>> 24: 1 0 WUGEN 10 l3-app-irq
>> 27: 282 0 WUGEN 13 omap-dma-engine
>> 44: 0 0 4ae10000.gpio 13 DMA
>
> FYI, the legacy irq numbers are now all wrong since commit
> 9a1091ef0017 ("irqchip: gic: Support hierarchy irq domain.").
>
> Started a separate thread "Regression with legacy IRQ numbers
> caused by 9a1091ef0017" on it, will give these a try once
> that's sorted out.
Assuming the workaround I posted earlier works, the OMAP/DRA7 part of
this series is going to require some rework too (I need to know where
these legacy interrupts are attached: crossbar, WUGEN, or GIC?).
Thanks,
M.
--
Jazz is not dead. It just smells funny.
next prev parent reply other threads:[~2015-01-15 14:28 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-12 18:26 [PATCH v3 00/21] irqchip: gic: killing gic_arch_extn and co, slowly Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 01/21] ARM: tegra: irq: nuke leftovers from non-DT support Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 02/21] irqchip: tegra: add DT-based support for legacy interrupt controller Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 03/21] ARM: tegra: skip gic_arch_extn setup if DT has a LIC node Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 04/21] ARM: tegra: update DTs to expose legacy interrupt controller Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 05/21] DT: tegra: add binding for the " Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 06/21] ARM: tegra: remove old LIC support Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 07/21] genirq: Add irqchip_set_wake_parent Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 08/21] irqchip: crossbar: convert dra7 crossbar to stacked domains Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 09/21] DT: update ti,irq-crossbar binding Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 10/21] irqchip: GIC: get rid of routable domain Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 11/21] DT: arm,gic: kill arm,routable-irqs Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 12/21] DT: omap4/5: add binding for the wake-up generator Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 13/21] ARM: omap: convert wakeupgen to stacked domains Marc Zyngier
2015-01-14 22:28 ` Tony Lindgren
2015-01-15 14:28 ` Marc Zyngier [this message]
2015-01-15 14:40 ` Nishanth Menon
2015-01-15 14:50 ` Marc Zyngier
2015-01-15 17:04 ` Tony Lindgren
2015-01-15 17:28 ` Marc Zyngier
2015-01-15 17:57 ` Tony Lindgren
2015-01-15 18:12 ` Tony Lindgren
2015-01-12 18:26 ` [PATCH v3 14/21] ARM: imx6: convert GPC " Marc Zyngier
2015-01-12 19:00 ` Stefan Agner
2015-01-13 18:34 ` Marc Zyngier
2015-01-13 6:09 ` Linus Walleij
2015-01-13 18:36 ` Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 15/21] ARM: exynos4/5: convert pmu wakeup " Marc Zyngier
2015-01-15 6:41 ` [v3,15/21] " Pankaj Dubey
2015-01-16 19:22 ` Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 16/21] DT: exynos: update PMU binding Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 17/21] irqchip: gic: add an entry point to set up irqchip flags Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 18/21] ARM: shmobile: remove use of gic_arch_extn.irq_set_wake Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 19/21] ARM: ux500: switch from gic_arch_extn to gic_set_irqchip_flags Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 20/21] ARM: zynq: " Marc Zyngier
2015-01-12 18:26 ` [PATCH v3 21/21] irqchip: gic: Drop support for gic_arch_extn Marc Zyngier
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=871tmwi0d6.fsf@approximate.cambridge.arm.com \
--to=marc.zyngier@arm$(echo .)com \
--cc=linux-arm-kernel@lists$(echo .)infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox