From: linux@armlinux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/7] dmaengine:omap-dma: Linked List transfer for slave_sg
Date: Mon, 18 Jul 2016 11:31:37 +0100 [thread overview]
Message-ID: <20160718103137.GG5783@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20160714124242.7579-1-peter.ujfalusi@ti.com>
On Thu, Jul 14, 2016 at 03:42:35PM +0300, Peter Ujfalusi wrote:
> Hi,
>
> The following series with the final patch will add support for sDMA Linked List
> transfer support.
> Linked List is supported by sDMA in OMAP3630+ (OMAP4/5, dra7 family).
> If the descriptor load feature is present we can create the descriptors for each
> SG beforehand and let sDMA to walk them through.
> This way the number of sDMA interrupts the kernel need to handle will drop
> dramatically.
I suggested this a few years ago, and I was told by TI that there was
no interest to implement this feature as it had very little performance
effect. Do I take it that TI have changed their position on this
feature?
--
RMK's Patch system: http://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up
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next prev parent reply other threads:[~2016-07-18 10:31 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-14 12:42 [PATCH 0/7] dmaengine:omap-dma: Linked List transfer for slave_sg Peter Ujfalusi
2016-07-14 12:42 ` [PATCH 1/7] dmaengine: omap-dma: Simplify omap_dma_start_sg parameter list Peter Ujfalusi
2016-07-14 12:42 ` [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Peter Ujfalusi
2016-07-18 10:34 ` Russell King - ARM Linux
2016-07-19 12:35 ` Peter Ujfalusi
2016-07-19 16:20 ` Russell King - ARM Linux
2016-07-19 19:23 ` Peter Ujfalusi
2016-07-24 7:39 ` Vinod Koul
2016-07-20 6:26 ` Robert Jarzmik
2016-07-21 9:33 ` Peter Ujfalusi
2016-07-21 9:35 ` Peter Ujfalusi
2016-07-21 9:47 ` Russell King - ARM Linux
2016-07-22 11:00 ` Peter Ujfalusi
2016-07-14 12:42 ` [PATCH 3/7] dmaengine: omap-dma: Simplify omap_dma_callback Peter Ujfalusi
2016-07-14 12:42 ` [PATCH 4/7] dmaengine: omap-dma: Dynamically allocate memory for lch_map Peter Ujfalusi
2016-07-14 12:42 ` [PATCH 5/7] dmaengine: omap-dma: Add more debug information when freeing channel Peter Ujfalusi
2016-07-14 12:42 ` [PATCH 6/7] dmaengine: omap-dma: Use pointer to omap_sg in slave_sg setup's loop Peter Ujfalusi
2016-07-14 12:42 ` [PATCH 7/7] dmaengine: omap-dma: Support for LinkedList transfer of slave_sg Peter Ujfalusi
2016-07-18 10:42 ` Russell King - ARM Linux
2016-07-18 11:12 ` Peter Ujfalusi
2016-07-18 10:31 ` Russell King - ARM Linux [this message]
2016-07-18 12:07 ` [PATCH 0/7] dmaengine:omap-dma: Linked List transfer for slave_sg Peter Ujfalusi
2016-07-18 12:21 ` Russell King - ARM Linux
2016-07-18 12:30 ` Peter Ujfalusi
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