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From: Ian Campbell <Ian.Campbell@citrix.com>
To: Vijay Kilari <vijay.kilari@gmail.com>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
	Prasun Kapoor <Prasun.Kapoor@caviumnetworks.com>,
	Vijaya Kumar K <vijaya.kumar@caviumnetworks.com>,
	Julien Grall <julien.grall@linaro.org>,
	xen-devel@lists.xen.org,
	Stefano Stabellini <stefano.stabellini@citrix.com>
Subject: Re: [PATCH v2 06/15] xen/arm: move gic lock out of gic data structure
Date: Thu, 10 Apr 2014 11:02:32 +0100	[thread overview]
Message-ID: <1397124152.9862.91.camel@kazak.uk.xensource.com> (raw)
In-Reply-To: <CALicx6tLNkxXtWsBNFVtSj7o8X+BmkN9bV1yMbpMnRifbqsqLg@mail.gmail.com>

On Thu, 2014-04-10 at 14:54 +0530, Vijay Kilari wrote:
> On Thu, Apr 10, 2014 at 2:22 PM, Ian Campbell <Ian.Campbell@citrix.com> wrote:
> > On Fri, 2014-04-04 at 17:26 +0530, vijay.kilari@gmail.com wrote:
> >> From: Vijaya Kumar K <Vijaya.Kumar@caviumnetworks.com>
> >>
> >> spinlock is used across generic and GIC low level
> >> functions. Move this lock out of gic data.
> >> This helps to separate generic and low level functions
> >> later.
> >
> > Is there a subsequent patch which exposes this lock to  gic-{v2,v3}.c? I
> > grepped but couldn't find it. AFAIK the pattern is always:
> >         common: take lock
> >         common: call per gic callback
> >                 per gic callback: do stuff assuming lock held
> >         common: release lock
> >
> > IOW the lock is only used from the common code?
> >
> Yes, lock is only used in common code and your pattern is correct.

Why is gic.lock not alright?

> I made it separate patch as this is not trivial change
> 
> > Ian.
> >

  reply	other threads:[~2014-04-10 10:02 UTC|newest]

Thread overview: 100+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-04 11:56 [PATCH v2 00/15] xen/arm: Add GICv3 support vijay.kilari
2014-04-04 11:56 ` [PATCH v2 01/15] xen/arm: register mmio handler at runtime vijay.kilari
2014-04-04 12:18   ` Julien Grall
2014-04-04 12:30     ` Vijay Kilari
2014-04-04 12:42       ` Ian Campbell
2014-04-04 12:54         ` Julien Grall
2014-04-04 12:59           ` Ian Campbell
2014-04-04 13:06             ` Julien Grall
2014-04-04 12:59       ` Julien Grall
2014-04-08  4:47         ` Vijay Kilari
2014-04-08 10:17           ` Julien Grall
2014-04-08 10:34             ` Vijay Kilari
2014-04-08 10:51               ` Julien Grall
2014-04-08 11:41                 ` Vijay Kilari
2014-04-08 12:29                   ` Ian Campbell
2014-04-04 15:24       ` Vijay Kilari
2014-04-04 15:27         ` Julien Grall
2014-04-08  6:35           ` Vijay Kilari
2014-04-08 10:25             ` Julien Grall
2014-04-09 15:34       ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 02/15] xen/arm: move vgic rank data to gic header file vijay.kilari
2014-04-04 13:16   ` Julien Grall
2014-04-04 15:27     ` Vijay Kilari
2014-04-04 11:56 ` [PATCH v2 03/15] arm/xen: move gic save and restore registers to gic driver vijay.kilari
2014-04-04 13:23   ` Julien Grall
2014-04-09 16:51   ` Ian Campbell
2014-04-10  4:50     ` Vijay Kilari
2014-04-10  8:32       ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 04/15] xen/arm: move gic definitions to seperate file vijay.kilari
2014-04-04 13:27   ` Julien Grall
2014-04-04 15:29     ` Vijay Kilari
2014-04-04 15:37       ` Julien Grall
2014-04-09 15:41       ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 05/15] xen/arm: segregate GIC low level functionality vijay.kilari
2014-04-04 13:55   ` Julien Grall
2014-04-09  7:43     ` Vijay Kilari
2014-04-09  8:36       ` Julien Grall
2014-04-09 15:55         ` Ian Campbell
2014-04-09 17:00     ` Ian Campbell
2014-04-09 17:07       ` Julien Grall
2014-04-10  5:24         ` Vijay Kilari
2014-04-10  8:59         ` Ian Campbell
2014-04-09  8:50   ` Julien Grall
2014-04-09 11:34     ` Vijay Kilari
2014-04-09 12:10       ` Julien Grall
2014-04-09 15:54   ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 06/15] xen/arm: move gic lock out of gic data structure vijay.kilari
2014-04-10  8:52   ` Ian Campbell
2014-04-10  9:24     ` Vijay Kilari
2014-04-10 10:02       ` Ian Campbell [this message]
2014-04-10 10:12         ` Vijay Kilari
2014-04-10 10:31           ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 07/15] xen/arm: split gic driver into generic and gic-v2 driver vijay.kilari
2014-04-10  8:58   ` Ian Campbell
2014-04-10  9:27     ` Vijay Kilari
2014-04-04 11:56 ` [PATCH v2 08/15] xen/arm: use device api to detect GIC version vijay.kilari
2014-04-04 14:07   ` Julien Grall
2014-04-09 14:28     ` Vijay Kilari
2014-04-09 14:32       ` Julien Grall
2014-04-10  9:05         ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 09/15] xen/arm: segregate VGIC low level functionality vijay.kilari
2014-04-04 14:13   ` Julien Grall
2014-04-10  9:08     ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 10/15] xen/arm: split vgic driver into generic and vgic-v2 driver vijay.kilari
2014-04-10  9:12   ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 11/15] xen/arm: make GIC context data version specific vijay.kilari
2014-04-04 14:09   ` Julien Grall
2014-04-10  9:14     ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 12/15] xen/arm: move GIC data to driver from domain structure vijay.kilari
2014-04-10  9:21   ` Ian Campbell
2014-04-04 11:56 ` [PATCH v2 13/15] xen/arm: Add support for GIC v3 vijay.kilari
2014-04-10  9:25   ` Ian Campbell
2014-04-10 10:00   ` Ian Campbell
2014-04-10 10:34     ` Julien Grall
2014-04-10 11:06       ` Vijay Kilari
2014-04-10 11:21         ` Julien Grall
2014-04-10 11:24     ` Julien Grall
2014-04-11 12:59     ` Vijay Kilari
2014-04-14  8:27       ` Ian Campbell
2014-04-14  9:52         ` Vijay Kilari
2014-04-04 11:56 ` [PATCH v2 14/15] xen/arm: Add vgic " vijay.kilari
2014-04-10 10:23   ` Ian Campbell
2014-04-10 10:43     ` Vijay Kilari
2014-04-10 10:51       ` Ian Campbell
2014-04-10 11:19         ` Vijay Kilari
2014-04-10 11:26           ` Ian Campbell
2014-04-10 11:38             ` Vijay Kilari
2014-04-10 12:08               ` Ian Campbell
2014-04-10 13:14                 ` Vijay Kilari
2014-04-04 11:56 ` [PATCH v2 15/15] xen/arm: update GIC dt node with GIC v3 information vijay.kilari
2014-04-04 14:22   ` Julien Grall
2014-04-04 15:45     ` Vijay Kilari
2014-04-04 16:00       ` Julien Grall
2014-04-04 16:13         ` Vijay Kilari
2014-04-04 16:42           ` Julien Grall
2014-04-10 10:28   ` Ian Campbell
2014-04-04 13:01 ` [PATCH v2 00/15] xen/arm: Add GICv3 support Julien Grall
2014-04-04 15:56   ` Vijay Kilari
2014-04-04 16:03     ` Julien Grall
2014-04-10  8:45 ` Ian Campbell

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