From: Brian Norris <computersforpeace@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Linux PM list <linux-pm@vger.kernel.org>,
Dmitry Torokhov <dtor@google.com>
Subject: Re: [RFC][PATCH] irq: Rework IRQF_NO_SUSPENDED
Date: Tue, 29 Jul 2014 12:20:08 -0700 [thread overview]
Message-ID: <20140729192008.GH3711@ld-irv-0074> (raw)
In-Reply-To: <20140725055847.GQ3935@laptop>
Hi Peter,
On Fri, Jul 25, 2014 at 07:58:47AM +0200, Peter Zijlstra wrote:
> On Fri, Jul 25, 2014 at 01:10:36AM +0200, Rafael J. Wysocki wrote:
> > Yes, drivers using enable_irq_wake() will likely want IRQF_NO_SUSPEND to
> > be set for their irqactions, but that should not imply "no suspend" for
> > all irqactions sharing the same desc. So I guess it may be better to go
> > forth and use a global "interrupts suspended" state variable instead of the
> > IRQS_SUSPENDED flag for each desc and throw away the IRQD_WAKEUP_STATE
> > check from suspend_device_irqs() entirely.
> >
> > Peter, it looks like you'd prefer that?
>
> My preference would be to shoot enable_irq_wake() in the head, its
> fundamentally broken.
I'm curious what you mean. Are you referring to the fact that its input
is simply an IRQ number (regardless of whether the IRQ is shared), not
something that identifies the particular handler (e.g., struct
irqaction)?
Brian
next prev parent reply other threads:[~2014-07-29 19:20 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-24 21:26 [RFC][PATCH] irq: Rework IRQF_NO_SUSPENDED Peter Zijlstra
2014-07-24 22:02 ` Rafael J. Wysocki
2014-07-24 23:10 ` Rafael J. Wysocki
2014-07-25 5:58 ` Peter Zijlstra
2014-07-29 19:20 ` Brian Norris [this message]
2014-07-29 19:28 ` Peter Zijlstra
2014-07-29 20:41 ` Brian Norris
2014-07-25 9:27 ` Thomas Gleixner
2014-07-25 12:49 ` Rafael J. Wysocki
2014-07-25 13:55 ` Thomas Gleixner
2014-07-25 9:40 ` Thomas Gleixner
2014-07-25 12:40 ` Peter Zijlstra
2014-07-25 13:25 ` Peter Zijlstra
2014-07-25 17:03 ` Rafael J. Wysocki
2014-07-25 16:58 ` Peter Zijlstra
2014-07-25 21:00 ` Thomas Gleixner
2014-07-25 22:25 ` Rafael J. Wysocki
2014-07-25 23:07 ` Rafael J. Wysocki
2014-07-26 11:49 ` Rafael J. Wysocki
2014-07-26 11:53 ` Rafael J. Wysocki
2014-07-28 6:49 ` Peter Zijlstra
2014-07-28 12:33 ` Thomas Gleixner
2014-07-28 13:04 ` Peter Zijlstra
2014-07-28 21:53 ` Rafael J. Wysocki
2014-07-28 23:01 ` Rafael J. Wysocki
2014-07-29 12:46 ` Thomas Gleixner
2014-07-29 13:33 ` Rafael J. Wysocki
2014-07-30 21:46 ` [PATCH 0/3] irq / PM: wakeup interrupt interface for drivers (was: Re: [RFC][PATCH] irq: Rework IRQF_NO_SUSPENDED) Rafael J. Wysocki
2014-07-30 21:51 ` [PATCH 1/3] irq / PM: New driver interface for wakeup interrupts Rafael J. Wysocki
2014-07-30 22:56 ` Thomas Gleixner
2014-07-31 0:12 ` Thomas Gleixner
2014-07-31 2:14 ` Rafael J. Wysocki
2014-07-31 10:44 ` Thomas Gleixner
2014-07-31 18:36 ` Rafael J. Wysocki
2014-07-31 20:12 ` Alan Stern
2014-07-31 20:12 ` Alan Stern
2014-07-31 21:04 ` Rafael J. Wysocki
2014-07-31 23:41 ` Thomas Gleixner
2014-08-01 0:51 ` Rafael J. Wysocki
2014-08-01 14:41 ` Alan Stern
2014-08-01 14:41 ` Alan Stern
2014-07-31 22:16 ` Thomas Gleixner
2014-08-01 0:08 ` Rafael J. Wysocki
2014-08-01 1:24 ` Rafael J. Wysocki
2014-08-01 9:40 ` [PATCH 1/3] irq / PM: New driver interface for wakeup interruptsn Thomas Gleixner
2014-08-01 13:45 ` Rafael J. Wysocki
2014-08-01 13:43 ` Thomas Gleixner
2014-08-01 14:29 ` Rafael J. Wysocki
2014-08-02 1:31 ` Rafael J. Wysocki
2014-08-03 13:42 ` Rafael J. Wysocki
2014-08-04 3:38 ` Rafael J. Wysocki
2014-08-05 15:22 ` [PATCH 0/5] irq / PM: Shared IRQs vs IRQF_NO_SUSPEND and suspend-to-idle wakeup Rafael J. Wysocki
2014-08-05 15:24 ` [PATCH 1/5] PM / sleep: Mechanism for aborting system suspends unconditionally Rafael J. Wysocki
2014-08-05 23:29 ` [Update][PATCH " Rafael J. Wysocki
2014-08-05 15:25 ` [PATCH 2/5] irq / PM: Fix IRQF_NO_SUSPEND problem with shared interrupts Rafael J. Wysocki
2014-08-05 15:26 ` [PATCH 3/5] irq / PM: Make wakeup interrupts wake up from suspend-to-idle Rafael J. Wysocki
2014-08-08 1:58 ` [Update][PATCH " Rafael J. Wysocki
2014-08-09 0:28 ` Rafael J. Wysocki
2014-08-05 15:27 ` [PATCH 4/5] x86 / PM: Set IRQCHIP_SKIP_SET_WAKE for IOAPIC IRQ chip objects Rafael J. Wysocki
2014-08-05 15:28 ` [PATCH 5/5] PCI / PM: Make PCIe PME interrupts wake up from suspend-to-idle Rafael J. Wysocki
2014-08-05 16:12 ` [PATCH 0/5] irq / PM: Shared IRQs vs IRQF_NO_SUSPEND and suspend-to-idle wakeup Peter Zijlstra
2014-08-08 2:09 ` Rafael J. Wysocki
2014-07-31 22:54 ` [PATCH 1/3] irq / PM: New driver interface for wakeup interrupts Thomas Gleixner
2014-07-30 21:51 ` [PATCH 2/3] PCI / PM: Make PCIe PME interrupts wake up from "freeze" sleep state Rafael J. Wysocki
2014-07-30 21:52 ` [PATCH 3/3] gpio-keys / PM: use enable/disable_device_irq_wake() Rafael J. Wysocki
2014-07-28 21:27 ` [RFC][PATCH] irq: Rework IRQF_NO_SUSPENDED Rafael J. Wysocki
2014-07-27 15:53 ` Rafael J. Wysocki
2014-07-27 22:00 ` [PATCH, v2] Rafael J. Wysocki
2014-07-28 12:11 ` Thomas Gleixner
2014-07-28 21:17 ` [PATCH, v3] irq / PM: Fix IRQF_NO_SUSPEND problem with shared interrupts (was: Re: [PATCH, v2]) Rafael J. Wysocki
2014-07-29 7:28 ` [PATCH, v4] irq / PM: Fix IRQF_NO_SUSPEND problem with shared interrupts Rafael J. Wysocki
2014-07-29 13:46 ` [PATCH, v5] " Rafael J. Wysocki
2014-07-30 0:54 ` [PATCH, v6] " Rafael J. Wysocki
2014-07-25 12:47 ` [RFC][PATCH] irq: Rework IRQF_NO_SUSPENDED Rafael J. Wysocki
2014-07-25 13:22 ` Peter Zijlstra
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