linux-kernel - Re: [PATCH v1 ] ALSA: core: memalloc: add page alignment for iram

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Date:   Thu, 17 Dec 2020 10:38:29 +0100
From:   Takashi Iwai <tiwai@...e.de>
To:     Robin Gong <yibin.gong@....com>
Cc:     perex@...ex.cz, tiwai@...e.com, akpm@...ux-foundation.org,
        xiang@...nel.org, pierre-louis.bossart@...ux.intel.com,
        gustavoars@...nel.org, shengjiu.wang@....com,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 ] ALSA: core: memalloc: add page alignment for iram

On Thu, 17 Dec 2020 17:15:47 +0100,
Robin Gong wrote:
> 
> Since mmap for userspace is based on page alignment, add page alignment
> for iram alloc from pool, otherwise, some good data located in the same
> page of dmab->area maybe touched wrongly by userspace like pulseaudio.
> 
> Signed-off-by: Robin Gong <yibin.gong@....com>

Thanks, applied now with Cc-to-stable.


Takashi