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Groups > linux.kernel > #1445369
| From | Russell King - ARM Linux <linux@armlinux.org.uk> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 0/7] dmaengine:omap-dma: Linked List transfer for slave_sg |
| Date | 2016-07-18 12:40 +0200 |
| Message-ID | <rWe7T-4ZV-5@gated-at.bofh.it> (permalink) |
| References | <rUOfv-1kh-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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 according to speedtest.net.
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[PATCH 0/7] dmaengine:omap-dma: Linked List transfer for slave_sg Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-14 14:50 +0200
[PATCH 1/7] dmaengine: omap-dma: Simplify omap_dma_start_sg parameter list Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-14 14:50 +0200
[PATCH 7/7] dmaengine: omap-dma: Support for LinkedList transfer of slave_sg Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-14 14:50 +0200
Re: [PATCH 7/7] dmaengine: omap-dma: Support for LinkedList transfer of slave_sg Russell King - ARM Linux <linux@armlinux.org.uk> - 2016-07-18 12:50 +0200
Re: [PATCH 7/7] dmaengine: omap-dma: Support for LinkedList transfer of slave_sg Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-18 13:20 +0200
[PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-14 14:50 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Russell King - ARM Linux <linux@armlinux.org.uk> - 2016-07-18 12:40 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-19 14:40 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Russell King - ARM Linux <linux@armlinux.org.uk> - 2016-07-19 18:30 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-19 21:30 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Vinod Koul <vinod.koul@intel.com> - 2016-07-24 09:40 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Robert Jarzmik <robert.jarzmik@free.fr> - 2016-07-20 08:30 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-21 11:40 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-21 11:40 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Russell King - ARM Linux <linux@armlinux.org.uk> - 2016-07-21 11:50 +0200
Re: [PATCH 2/7] dmaengine: omap-dma: Complete the cookie first on transfer completion Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-22 13:10 +0200
[PATCH 4/7] dmaengine: omap-dma: Dynamically allocate memory for lch_map Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-14 14:50 +0200
[PATCH 6/7] dmaengine: omap-dma: Use pointer to omap_sg in slave_sg setup's loop Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-14 14:50 +0200
Re: [PATCH 0/7] dmaengine:omap-dma: Linked List transfer for slave_sg Russell King - ARM Linux <linux@armlinux.org.uk> - 2016-07-18 12:40 +0200
Re: [PATCH 0/7] dmaengine:omap-dma: Linked List transfer for slave_sg Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-18 14:10 +0200
Re: [PATCH 0/7] dmaengine:omap-dma: Linked List transfer for slave_sg Russell King - ARM Linux <linux@armlinux.org.uk> - 2016-07-18 14:30 +0200
Re: [PATCH 0/7] dmaengine:omap-dma: Linked List transfer for slave_sg Peter Ujfalusi <peter.ujfalusi@ti.com> - 2016-07-18 14:40 +0200
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