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From: CK Hu <ck.hu@mediatek.com>
To: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Cc: devicetree@vger.kernel.org, wsd_upstream@mediatek.com,
	Jassi Brar <jassisinghbrar@gmail.com>,
	linux-kernel@vger.kernel.org,
	Houlong Wei <houlong.wei@mediatek.com>,
	Rob Herring <robh+dt@kernel.org>,
	linux-mediatek@lists.infradead.org,
	Bibby Hsieh <bibby.hsieh@mediatek.com>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 04/14] mailbox: mediatek: cmdq: clear task in channel before shutdown
Date: Tue, 10 Dec 2019 10:49:41 +0800
Message-ID: <1575946181.16676.4.camel@mtksdaap41> (raw)
In-Reply-To: <1574819937-6246-6-git-send-email-dennis-yc.hsieh@mediatek.com>

Hi, Dennis:

On Wed, 2019-11-27 at 09:58 +0800, Dennis YC Hsieh wrote:
> Do success callback in channel when shutdown. For those task not finish,
> callback with error code thus client has chance to cleanup or reset.
> 
> Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
> ---
>  drivers/mailbox/mtk-cmdq-mailbox.c | 26 ++++++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 
> diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
> index fd519b6f518b..c12a768d1175 100644
> --- a/drivers/mailbox/mtk-cmdq-mailbox.c
> +++ b/drivers/mailbox/mtk-cmdq-mailbox.c
> @@ -450,6 +450,32 @@ static int cmdq_mbox_startup(struct mbox_chan *chan)
>  
>  static void cmdq_mbox_shutdown(struct mbox_chan *chan)
>  {
> +	struct cmdq_thread *thread = (struct cmdq_thread *)chan->con_priv;
> +	struct cmdq *cmdq = dev_get_drvdata(chan->mbox->dev);
> +	struct cmdq_task *task, *tmp;
> +	unsigned long flags;
> +
> +	spin_lock_irqsave(&thread->chan->lock, flags);
> +	if (list_empty(&thread->task_busy_list))
> +		goto done;
> +
> +	WARN_ON(cmdq_thread_suspend(cmdq, thread) < 0);
> +
> +	/* make sure executed tasks have success callback */
> +	cmdq_thread_irq_handler(cmdq, thread);
> +	if (list_empty(&thread->task_busy_list))
> +		goto done;
> +
> +	list_for_each_entry_safe(task, tmp, &thread->task_busy_list,
> +				 list_entry) {
> +		cmdq_task_exec_done(task, -ECONNABORTED);
> +		kfree(task);
> +	}
> +
> +	cmdq_thread_disable(cmdq, thread);
> +	clk_disable(cmdq->clock);
> +done:

cmdq_thread_resume(thread);

Regards,
CK

> +	spin_unlock_irqrestore(&thread->chan->lock, flags);
>  }
>  
>  static const struct mbox_chan_ops cmdq_mbox_chan_ops = {

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Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-27  1:58 [PATCH v2] support gce on mt6779 platform Dennis YC Hsieh
2019-11-27  1:58 ` [PATCH v2 00/14] " Dennis YC Hsieh
2019-11-27  1:58 ` [PATCH v2 01/14] dt-binding: gce: add gce header file for mt6779 Dennis YC Hsieh
2019-12-05 20:37   ` Rob Herring
2019-11-27  1:58 ` [PATCH v2 02/14] mailbox: cmdq: variablize address shift in platform Dennis YC Hsieh
2019-12-10  1:55   ` CK Hu
2019-12-12  1:03     ` Dennis-YC Hsieh
2019-11-27  1:58 ` [PATCH v2 03/14] mailbox: cmdq: support mt6779 gce platform definition Dennis YC Hsieh
2019-12-10  2:04   ` CK Hu
2019-11-27  1:58 ` [PATCH v2 04/14] mailbox: mediatek: cmdq: clear task in channel before shutdown Dennis YC Hsieh
2019-12-10  2:49   ` CK Hu [this message]
2019-12-12  1:13     ` Dennis-YC Hsieh
2019-12-12  1:31       ` CK Hu
2019-12-12  1:51         ` Dennis-YC Hsieh
2019-12-12  2:03           ` CK Hu
2019-12-12  2:20             ` Dennis-YC Hsieh
2019-11-27  1:58 ` [PATCH v2 05/14] arm64: dts: add gce node for mt6779 Dennis YC Hsieh
2019-12-06  4:05   ` Bibby Hsieh
2019-11-27  1:58 ` [PATCH v2 06/14] soc: mediatek: cmdq: return send msg error code Dennis YC Hsieh
2019-12-06  4:02   ` Bibby Hsieh
2019-12-18  8:00     ` Dennis-YC Hsieh
2019-12-18  8:14       ` Bibby Hsieh
2019-11-27  1:58 ` [PATCH v2 07/14] soc: mediatek: cmdq: add assign function Dennis YC Hsieh
2019-12-10  3:24   ` CK Hu
2019-12-12  1:15     ` Dennis-YC Hsieh
2019-11-27  1:58 ` [PATCH v2 08/14] soc: mediatek: cmdq: add write_s function Dennis YC Hsieh
2019-12-10  5:18   ` CK Hu
2019-12-12  1:31     ` Dennis-YC Hsieh
2019-12-10  7:35   ` Bibby Hsieh
2019-12-12  1:31     ` Dennis-YC Hsieh
2019-11-27  1:58 ` [PATCH v2 09/14] soc: mediatek: cmdq: add read_s function Dennis YC Hsieh
2019-12-10  7:55   ` CK Hu
2019-12-12  1:33     ` Dennis-YC Hsieh
2019-11-27  1:58 ` [PATCH v2 10/14] soc: mediatek: cmdq: add write_s value function Dennis YC Hsieh
2019-11-27  1:58 ` [PATCH v2 11/14] soc: mediatek: cmdq: export finalize function Dennis YC Hsieh
2019-12-10  7:50   ` CK Hu
2019-11-27  1:58 ` [PATCH v2 12/14] soc: mediatek: cmdq: add loop function Dennis YC Hsieh
2019-12-11  1:48   ` CK Hu
2019-12-12  1:37     ` Dennis-YC Hsieh
2019-11-27  1:58 ` [PATCH v2 13/14] soc: mediatek: cmdq: add wait no clear event function Dennis YC Hsieh
2019-12-11  2:04   ` CK Hu
2019-12-12  1:42     ` Dennis-YC Hsieh
2019-11-27  1:58 ` [PATCH v2 14/14] soc: mediatek: cmdq: add set " Dennis YC Hsieh

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