From: Ian Campbell <ian.campbell@citrix.com>
To: Julien Grall <julien.grall@citrix.com>
Cc: Vijay Kilari <vijay.kilari@gmail.com>,
Stefano Stabellini <stefano.stabellini@eu.citrix.com>,
Prasun Kapoor <Prasun.Kapoor@caviumnetworks.com>,
Vijaya Kumar K <vijaya.kumar@caviumnetworks.com>,
Tim Deegan <tim@xen.org>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
Stefano Stabellini <stefano.stabellini@citrix.com>,
manish.jaggi@caviumnetworks.com
Subject: Re: [RFC PATCH v3 13/18] xen/arm: ITS: Add irq descriptors for LPIs
Date: Tue, 7 Jul 2015 17:04:29 +0100 [thread overview]
Message-ID: <1436285069.25646.264.camel@citrix.com> (raw)
In-Reply-To: <559BF5D7.6090309@citrix.com>
On Tue, 2015-07-07 at 16:52 +0100, Julien Grall wrote:
> On 07/07/15 16:50, Ian Campbell wrote:
> > I'd rather we refactored these checks into some sort of is_valid_irq()
> > helper which could check vs. nr_lines (which remains the
> > GICD_TYPER.ITLinesNumber based thing) and the number of LPIs separately.
> >
> > Combining the two risks considering interrupt in the 1025..8191 range as
> > valid and open coding anything more complex than the existing single <
> > check in all the relevant places isn't going to scale.
>
> I would be fine with that too. Although, I think we need to add a
> comment on top of gic_number_lines to clearly specify this is not
> included LPIs.
Strictly speaking an LPI being message signalled is not associated with
a line, which is why GICD_TYPER.ITLinesNumber also doesn't consider
them. But that's not necessarily all that obvious, so a comment would be
appropriate, yes.
Ian.
next prev parent reply other threads:[~2015-07-07 16:04 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-22 12:01 [RFC PATCH v3 00/18] Add ITS support vijay.kilari
2015-06-22 12:01 ` [RFC PATCH v3 01/18] xen/arm: Add bitmap_find_next_zero_area helper function vijay.kilari
2015-06-22 14:14 ` Julien Grall
2015-06-22 12:01 ` [RFC PATCH v3 02/18] xen: Add log2 functionality vijay.kilari
2015-06-22 13:17 ` Jan Beulich
2015-06-24 13:05 ` Vijay Kilari
2015-06-24 13:21 ` Jan Beulich
2015-06-22 12:01 ` [RFC PATCH v3 03/18] xen: console: Add ratelimit support for error message vijay.kilari
2015-06-22 13:21 ` Jan Beulich
2015-06-25 13:14 ` Vijay Kilari
2015-06-25 13:21 ` Andrew Cooper
2015-06-25 13:31 ` Jan Beulich
2015-06-22 12:01 ` [RFC PATCH v3 04/18] xen/arm: gicv3: Refactor redistributor information vijay.kilari
2015-06-22 15:00 ` Julien Grall
2015-06-29 11:09 ` Ian Campbell
2015-06-22 12:01 ` [RFC PATCH v3 05/18] xen/arm: ITS: Port ITS driver to xen vijay.kilari
2015-06-22 17:16 ` Julien Grall
2015-06-26 9:19 ` Vijay Kilari
2015-06-26 9:52 ` Julien Grall
2015-06-29 11:39 ` Ian Campbell
2015-06-29 15:43 ` Vijay Kilari
2015-06-29 15:47 ` Vijay Kilari
2015-06-29 16:49 ` Ian Campbell
2015-06-22 12:01 ` [RFC PATCH v3 06/18] xen/arm: ITS: Add helper functions to manage its_devices vijay.kilari
2015-06-23 10:21 ` Julien Grall
2015-06-22 12:01 ` [RFC PATCH v3 07/18] xen/arm: ITS: implement hw_irq_controller for LPIs vijay.kilari
2015-06-23 14:32 ` Julien Grall
2015-06-26 12:54 ` Vijay Kilari
2015-06-26 15:05 ` Julien Grall
2015-06-29 11:53 ` Ian Campbell
2015-06-29 12:46 ` Julien Grall
2015-07-02 12:15 ` Vijay Kilari
2015-06-26 14:25 ` Vijay Kilari
2015-06-26 15:15 ` Julien Grall
2015-06-29 11:59 ` Ian Campbell
2015-07-02 12:21 ` Vijay Kilari
2015-07-02 12:35 ` Ian Campbell
2015-07-02 12:44 ` Vijay Kilari
2015-07-02 12:59 ` Ian Campbell
2015-07-02 16:11 ` Julien Grall
2015-06-22 12:01 ` [RFC PATCH v3 08/18] xen/arm: vITS: Add virtual ITS driver vijay.kilari
2015-06-23 16:39 ` Julien Grall
2015-07-02 13:33 ` Vijay Kilari
2015-07-02 14:30 ` Ian Campbell
2015-06-24 9:20 ` Julien Grall
2015-06-29 12:13 ` Ian Campbell
2015-06-22 12:01 ` [RFC PATCH v3 09/18] xen/arm: ITS: Add virtual ITS commands support vijay.kilari
2015-06-24 10:29 ` Julien Grall
2015-06-29 12:16 ` Ian Campbell
2015-06-29 12:18 ` Ian Campbell
2015-06-29 12:23 ` Ian Campbell
2015-07-03 6:50 ` Vijay Kilari
2015-07-03 8:41 ` Ian Campbell
2015-06-22 12:01 ` [RFC PATCH v3 10/18] xen/arm: ITS: Add APIs to add and assign device vijay.kilari
2015-06-24 11:38 ` Julien Grall
2015-06-29 12:25 ` Ian Campbell
2015-06-29 12:29 ` Ian Campbell
2015-07-02 8:40 ` Vijay Kilari
2015-07-02 9:01 ` Ian Campbell
2015-07-02 10:30 ` Julien Grall
2015-06-22 12:01 ` [RFC PATCH v3 11/18] xen/arm: ITS: Add GITS registers emulation vijay.kilari
2015-06-26 12:51 ` Julien Grall
2015-07-08 12:11 ` Ian Campbell
2015-06-22 12:01 ` [RFC PATCH v3 12/18] xen/arm: ITS: Add GICR register emulation vijay.kilari
2015-06-22 12:01 ` [RFC PATCH v3 13/18] xen/arm: ITS: Add irq descriptors for LPIs vijay.kilari
2015-06-29 12:58 ` Ian Campbell
2015-06-29 13:11 ` Julien Grall
2015-07-07 11:00 ` Vijay Kilari
2015-07-07 11:16 ` Julien Grall
2015-07-07 15:50 ` Ian Campbell
2015-07-07 15:52 ` Julien Grall
2015-07-07 16:04 ` Ian Campbell [this message]
2015-06-22 12:01 ` [RFC PATCH v3 14/18] xen/arm: ITS: Initialize physical ITS vijay.kilari
2015-06-22 12:01 ` [RFC PATCH v3 15/18] xen/arm: ITS: Add domain specific ITS initialization vijay.kilari
2015-06-29 13:01 ` Ian Campbell
2015-06-22 12:01 ` [RFC PATCH v3 16/18] xen/arm: ITS: Handle LPI interrupts vijay.kilari
2015-06-29 13:03 ` Ian Campbell
2015-06-22 12:01 ` [RFC PATCH v3 17/18] xen/arm: ITS: Generate ITS node for Dom0 vijay.kilari
2015-06-29 13:06 ` Ian Campbell
2015-07-07 5:31 ` Vijay Kilari
2015-07-07 8:21 ` Julien Grall
2015-07-07 10:25 ` Vijay Kilari
2015-07-07 11:07 ` Julien Grall
2015-06-22 12:01 ` [RFC PATCH v3 18/18] xen/arm: ITS: Map ITS translation space vijay.kilari
2015-06-22 13:52 ` [RFC PATCH v3 00/18] Add ITS support Julien Grall
2015-06-22 13:56 ` Ian Campbell
2015-06-24 10:02 ` Ian Campbell
2015-06-29 13:11 ` Ian Campbell
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