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From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	linuxppc-dev@lists.ozlabs.org
Cc: "Greg Kurz" <groug@kaod.org>,
	"Nicholas Piggin" <npiggin@gmail.com>,
	"Paul Mackerras" <paulus@samba.org>,
	"Cédric Le Goater" <clg@kaod.org>,
	"Alistair Popple" <alistair@popple.id.au>,
	"David Gibson" <david@gibson.dropbear.id.au>
Subject: Re: [RFC PATCH kernel] powerpc/xive: Drop deregistered irqs
Date: Sat, 13 Jul 2019 18:53:03 +1000
Message-ID: <9b1fbde4-0884-223e-446c-373f73c366e0@ozlabs.ru> (raw)
In-Reply-To: <d735f761b3d1cc1cd6df5fd566c75cae661fe4e7.camel@kernel.crashing.org>



On 13/07/2019 09:47, Benjamin Herrenschmidt wrote:
> On Fri, 2019-07-12 at 19:37 +1000, Alexey Kardashevskiy wrote:
>>
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/powerpc/kernel/irq.c#n614
>>
>> If so, then in order to do EOI, I'll need the desc which is gone, or
>> I am missing the point?
> 
> All you need is drop the local CPU priority.

I know that, the question was how. I cannot use irq_chip in
arch/powerpc/kernel/irq.c and I do not want to add ppc_md.enable_irqs().



-- 
Alexey

  reply index

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-12  8:20 Alexey Kardashevskiy
2019-07-12  8:29 ` Benjamin Herrenschmidt
2019-07-12  9:37   ` Alexey Kardashevskiy
2019-07-12 23:47     ` Benjamin Herrenschmidt
2019-07-13  8:53       ` Alexey Kardashevskiy [this message]
2019-07-14  1:31         ` Benjamin Herrenschmidt
2019-07-14 19:44           ` Cédric Le Goater
2019-07-14 22:48             ` Benjamin Herrenschmidt
2019-07-14 19:14 ` Daniel Henrique Barboza
2019-07-15  2:27   ` Alexey Kardashevskiy

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