public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Qais Yousef <qais.yousef@imgtec.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: <alsa-devel@alsa-project.org>,
	Jason Cooper <jason@lakedaemon.net>,
	"Marc Zyngier" <marc.zyngier@arm.com>,
	<linux-kernel@vger.kernel.org>, <linux-mips@linux-mips.org>
Subject: Re: [PATCH 01/10] irqchip: irq-mips-gic: export gic_send_ipi
Date: Mon, 24 Aug 2015 14:02:35 +0100	[thread overview]
Message-ID: <55DB15EB.3090109@imgtec.com> (raw)
In-Reply-To: <alpine.DEB.2.11.1508241447100.3873@nanos>

On 08/24/2015 01:49 PM, Thomas Gleixner wrote:
> On Mon, 24 Aug 2015, Qais Yousef wrote:
>
>> Some drivers might require to send ipi to other cores. So export it.
> Which IPIs do you need to send from a driver which are not exposed by
> the SMP functions already?

It's not an SMP IPI. We use GIC to exchange interrupts between AXD and 
the host system since AXD is another MIPS core in the cluster.

>> This will be used later by AXD driver.
> That smells fishy and it wants a proper explanation WHY and not just a
> sloppy statement that it will be used later. I can figure that out
> myself as exporting a function without using it does not make any sense.

Sorry for the terse explanation. As pointed above AXD uses GIC to send 
and receive interrupts to the host core. Without this change I can't 
compile the driver as a driver module because the symbol is not exported.

Does this make things clearer?

Thanks,
Qais

>
> Thanks,
>
> 	tglx


  reply	other threads:[~2015-08-24 13:02 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-24 12:39 [PATCH 00/10] Add support for img AXD audio hardware decoder Qais Yousef
2015-08-24 12:39 ` [PATCH 01/10] irqchip: irq-mips-gic: export gic_send_ipi Qais Yousef
2015-08-24 12:49   ` Thomas Gleixner
2015-08-24 13:02     ` Qais Yousef [this message]
2015-08-24 13:32       ` Marc Zyngier
2015-08-24 14:27         ` Qais Yousef
2015-08-24 15:07           ` Thomas Gleixner
2015-08-24 16:39             ` Qais Yousef
2015-08-24 17:17               ` Marc Zyngier
2015-08-26 11:23                 ` Qais Yousef
2015-08-26 13:19                   ` Thomas Gleixner
2015-08-26 14:57                     ` Qais Yousef
2015-08-26 15:08                       ` Thomas Gleixner
2015-08-26 15:41                         ` Qais Yousef
2015-08-26 21:40                           ` Thomas Gleixner
2015-08-27  2:22                             ` Jiang Liu
2015-08-28 10:38                             ` Qais Yousef
2015-08-28 14:22                               ` Thomas Gleixner
2015-08-28 15:12                                 ` Qais Yousef
2015-09-02  9:33                                 ` Qais Yousef
2015-09-02  9:55                                   ` Marc Zyngier
2015-09-02 10:48                                     ` Qais Yousef
2015-09-02 11:53                                       ` Marc Zyngier
2015-09-02 13:25                                         ` Qais Yousef
2015-09-02 14:14                                           ` Marc Zyngier
2015-09-02 12:12                                     ` Jason Cooper
2015-08-24 14:55       ` Thomas Gleixner
2015-08-24 15:11         ` Qais Yousef
2015-08-24 12:39 ` [PATCH 02/10] dt: add img,axd.txt device tree binding document Qais Yousef
2015-08-24 13:26   ` Mark Rutland
2015-08-24 13:49     ` Qais Yousef
2015-08-24 12:39 ` [PATCH 03/10] ALSA: add AXD Audio Processing IP alsa driver Qais Yousef
2015-08-26 18:37   ` Mark Brown
2015-08-27 12:15     ` Qais Yousef
2015-08-27 15:32       ` Mark Brown
2015-08-28  9:22         ` Qais Yousef
2015-09-03 12:46           ` Mark Brown
2015-08-24 12:39 ` [PATCH 04/10] ALSA: axd: add fw binary header manipulation files Qais Yousef
2015-08-24 12:39 ` [PATCH 05/10] ALSA: axd: add buffers " Qais Yousef
2015-08-26 18:43   ` Mark Brown
2015-08-27 14:21     ` Qais Yousef
2015-08-29  9:47       ` Mark Brown
2015-09-01 10:00         ` Qais Yousef
2015-09-03 12:32           ` Mark Brown
2015-09-14  9:11             ` Qais Yousef
2015-09-14 18:50               ` Mark Brown
2015-08-24 12:39 ` [PATCH 06/10] ALSA: axd: add basic files for sending/receiving axd cmds Qais Yousef
2015-08-26 19:16   ` Mark Brown
2015-08-27 15:40     ` Qais Yousef
2015-08-29 10:18       ` Mark Brown
2015-09-01 10:46         ` Qais Yousef
2015-09-03 12:40           ` Mark Brown
2015-08-24 12:39 ` [PATCH 07/10] ALSA: axd: add cmd interface helper functions Qais Yousef
2015-08-24 12:39 ` [PATCH 08/10] ALSA: axd: add low level AXD platform setup files Qais Yousef
2015-08-24 12:39 ` [PATCH 09/10] ALSA: axd: add alsa compress offload operations Qais Yousef
2015-08-24 12:39 ` [PATCH 10/10] ALSA: axd: add Makefile Qais Yousef
2015-08-26 18:04 ` [PATCH 00/10] Add support for img AXD audio hardware decoder Mark Brown
2015-08-27  9:07   ` Qais Yousef

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=55DB15EB.3090109@imgtec.com \
    --to=qais.yousef@imgtec.com \
    --cc=alsa-devel@alsa-project.org \
    --cc=jason@lakedaemon.net \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mips@linux-mips.org \
    --cc=marc.zyngier@arm.com \
    --cc=tglx@linutronix.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
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