From: Raymond Yau <superquad.vortex2@gmail.com>
To: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: ALSA Development Mailing List <alsa-devel@alsa-project.org>
Subject: Re: [RFC PATCH 0/4] better support for bursty DMA usages
Date: Wed, 15 Jul 2015 18:14:17 +0800 [thread overview]
Message-ID: <CAN8cciaoV=GqnLmukZvHGz+YjSu85nGcHzrhACAkOeH0692VhA@mail.gmail.com> (raw)
In-Reply-To: <1436350236-17509-1-git-send-email-pierre-louis.bossart@linux.intel.com>
>
> Set of patches to fix issues with hw_ptr fuzziness [1] and increased
buffering
> w/ DSPs
>
> 1. disable rewinds to allow for new HDaudio SPIB DMA functionality (fetch
up to
> the application pointer, rewinds not supported)
> 2. report max in-flight bytes to avoid problems with stale data (late
wake-ups,
> rewinds)
>
> [1]
http://mailman.alsa-project.org/pipermail/alsa-devel/2015-June/093646.html
>
> TODO:
> 1. fixes and alsa-lib updates (compile-tested only for now)
http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/src/modules/alsa/alsa-sink.c?id=cb55b00ccd25d965b1222e74375aee05427a449b
Do you need a new api snd_pcm_hw_params_can_rewind() for the application to
know pcm device does not support rewind ?
next prev parent reply other threads:[~2015-07-15 10:14 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-08 10:10 [RFC PATCH 0/4] better support for bursty DMA usages Pierre-Louis Bossart
2015-07-08 10:10 ` [RFC PATCH 1/4] ALSA: core: let low-level driver or userspace disable rewinds Pierre-Louis Bossart
2015-07-08 14:21 ` Takashi Iwai
2015-07-08 16:58 ` Pierre-Louis Bossart
2015-07-11 17:06 ` Alexander E. Patrakov
2015-07-14 3:32 ` Raymond Yau
2015-07-14 17:39 ` Alexander E. Patrakov
2015-07-15 1:23 ` Raymond Yau
2015-07-15 4:51 ` Alexander E. Patrakov
2015-07-28 14:19 ` Pierre-Louis Bossart
2015-07-28 15:43 ` Alexander E. Patrakov
2015-07-29 17:46 ` Pierre-Louis Bossart
2015-07-30 6:11 ` Alexander E. Patrakov
2015-07-30 13:46 ` Pierre-Louis Bossart
2015-07-08 10:10 ` [RFC PATCH 2/4] ALSA: core: add .notify callback for pcm ops Pierre-Louis Bossart
2015-07-08 14:27 ` Takashi Iwai
2015-07-08 17:10 ` Pierre-Louis Bossart
2015-07-09 14:44 ` Takashi Iwai
2015-07-09 7:25 ` Raymond Yau
2015-07-09 7:35 ` Pierre-Louis Bossart
2015-07-08 10:10 ` [RFC PATCH 3/4] ALSA: core: add report of max dma burst Pierre-Louis Bossart
2015-07-08 14:37 ` Takashi Iwai
2015-07-08 17:46 ` Pierre-Louis Bossart
2015-07-10 2:35 ` Raymond Yau
2015-07-10 17:13 ` Lars-Peter Clausen
2015-07-11 17:46 ` Alexander E. Patrakov
2015-07-11 18:28 ` Jaroslav Kysela
2015-07-16 2:11 ` Raymond Yau
2015-07-08 10:10 ` [RFC PATCH 4/4] ALSA: hda: add default value for max_dma_burst Pierre-Louis Bossart
2015-07-08 14:31 ` [RFC PATCH 0/4] better support for bursty DMA usages Takashi Iwai
2015-07-08 17:50 ` Pierre-Louis Bossart
2015-07-15 10:14 ` Raymond Yau [this message]
2015-07-15 10:38 ` Alexander E. Patrakov
2015-07-22 14:44 ` Raymond Yau
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='CAN8cciaoV=GqnLmukZvHGz+YjSu85nGcHzrhACAkOeH0692VhA@mail.gmail.com' \
--to=superquad.vortex2@gmail.com \
--cc=alsa-devel@alsa-project.org \
--cc=pierre-louis.bossart@linux.intel.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.