From: Takashi Iwai <tiwai@suse.de>
To: Viswanath L <viswanathl@nvidia.com>
Cc: <perex@perex.cz>, <tiwai@suse.com>, <mkumard@nvidia.com>,
<jonathanh@nvidia.com>, <arnd@arndb.de>,
<yung-chuan.liao@linux.intel.com>, <baolin.wang@linaro.org>,
<kstewart@linuxfoundation.org>, <Julia.Lawall@inria.fr>,
<tglx@linutronix.de>, <alsa-devel@alsa-project.org>,
<linux-kernel@vger.kernel.org>, <spujar@nvidia.com>,
<sharadg@nvidia.com>, <rlokhande@nvidia.com>,
<DRAMESH@nvidia.com>, <atalambedu@nvidia.com>
Subject: Re: [PATCH] ALSA: hda: Clear RIRB status before reading WP
Date: Thu, 06 Feb 2020 11:47:46 +0100 [thread overview]
Message-ID: <s5hzhdw8019.wl-tiwai@suse.de> (raw)
In-Reply-To: <1580983853-351-1-git-send-email-viswanathl@nvidia.com>
On Thu, 06 Feb 2020 11:10:53 +0100,
Viswanath L wrote:
>
> From: Mohan Kumar <mkumard@nvidia.com>
>
> RIRB interrupt status getting cleared after the write pointer is read
> causes a race condition, where last response(s) into RIRB may remain
> unserviced by IRQ, eventually causing azx_rirb_get_response to fall
> back to polling mode. Clearing the RIRB interrupt status ahead of
> write pointer access ensures that this condition is avoided.
>
> Signed-off-by: Mohan Kumar <mkumard@nvidia.com>
> Signed-off-by: Viswanath L <viswanathl@nvidia.com>
Applied, thanks.
Takashi
prev parent reply other threads:[~2020-02-06 10:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-06 10:10 [PATCH] ALSA: hda: Clear RIRB status before reading WP Viswanath L
2020-02-06 10:47 ` Takashi Iwai [this message]
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