From: Peter Ujfalusi <peter.ujfalusi-l0cyMroinI0@public.gmane.org>
To: nsekhar-l0cyMroinI0@public.gmane.org,
joelf-l0cyMroinI0@public.gmane.org,
vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
Cc: davinci-linux-open-source-VycZQUHpC/PFrsHnngEfi1aTQe2KTcn/@public.gmane.org,
linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: [PATCH 0/3] ARM/dma: edma: Serve cyclic clients via high priority queue
Date: Tue, 8 Jul 2014 13:46:35 +0300 [thread overview]
Message-ID: <1404816398-12338-1-git-send-email-peter.ujfalusi@ti.com> (raw)
Hi,
It is preferred that audio is served with the highest priority queue in order to
avoid delays in data transfer between memory and audio IP.
The following series will add an API to arch code to assign a channel to a given
queue.
The default queue is changed from 0 (highest priority) to lowest priority.
In the dmaengine driver we move the cyclic channel to queue0 (highest priority)
and move it back to default queue when the channel is terminated.
Regards,
Peter
---
Peter Ujfalusi (3):
ARM: edma: Set default queue to lowest priority
ARM: edma: Add edma_assign_channel_eventq() to move channel to a give
queue
dma: edma: Serve cyclic (audio) channels with high priority queue
arch/arm/common/edma.c | 31 ++++++++++++++++++++++++++++++-
drivers/dma/edma.c | 8 ++++++++
include/linux/platform_data/edma.h | 2 ++
3 files changed, 40 insertions(+), 1 deletion(-)
--
2.0.0
next reply other threads:[~2014-07-08 10:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-08 10:46 Peter Ujfalusi [this message]
2014-07-08 10:46 ` [PATCH 2/3] ARM: edma: Add edma_assign_channel_eventq() to move channel to a give queue Peter Ujfalusi
2014-07-08 10:46 ` [PATCH 3/3] dma: edma: Serve cyclic (audio) channels with high priority queue Peter Ujfalusi
[not found] ` <1404816398-12338-1-git-send-email-peter.ujfalusi-l0cyMroinI0@public.gmane.org>
2014-07-08 10:46 ` [PATCH 1/3] ARM: edma: Set default queue to lowest priority Peter Ujfalusi
2014-07-28 6:12 ` [PATCH 0/3] ARM/dma: edma: Serve cyclic clients via high priority queue Peter Ujfalusi
[not found] ` <53D5E9CF.10706-l0cyMroinI0@public.gmane.org>
2014-07-28 6:32 ` Sekhar Nori
2014-07-28 11:34 ` Vinod Koul
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