From: Bryan O'Donoghue <pure.logic@nexus-software.ie>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Peter Hurley <peter@hurleysoftware.com>,
linux-serial@vger.kernel.org, Vinod Koul <vinod.koul@intel.com>,
linux-kernel@vger.kernel.org, dmaengine@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
ismo.puustinen@intel.com,
Heikki Krogerus <heikki.krogerus@linux.intel.com>
Subject: Re: [PATCH v5 00/11] serial: 8250: split LPSS to 8250_lpss, enable DMA on Quark
Date: Thu, 26 May 2016 17:11:09 +0100 [thread overview]
Message-ID: <1464279069.2351.4.camel@nexus-software.ie> (raw)
In-Reply-To: <1464111448.31269.67.camel@linux.intel.com>
On Tue, 2016-05-24 at 20:37 +0300, Andy Shevchenko wrote:
> Below results doesn't show DMA case (by the way, how did you disable
> DMA
> in 3.8.7?) for stock kernel.
The stock kernel on SPI flash for my early Gen1 is a non-DMA 8250
driver, so nothing needs to be done to that, it's basically just the
3.8.7 8250 in PIO mode.
> Anyway, I added preliminary support to change DMA mode run-time.
> Check
> my today topic/dw/qrk branch. It would be nice to see all 4 cases:
> DMA
> vs non-DMA on stock kernel (Yocto) and mine.
I'll have another look at your latest branch and run the same tests.
>
> P.S. What is the point to test arbitrary tip branch?
Just tip-of-tree, we can benchmark against the 4.6 tag if you prefer.
---
bod
prev parent reply other threads:[~2016-05-26 16:11 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-06 15:17 [PATCH v5 00/11] serial: 8250: split LPSS to 8250_lpss, enable DMA on Quark Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 01/11] dmaengine: dw: keep copy of custom slave config in dwc Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 02/11] dmaengine: dw: provide probe(), remove() stubs for users Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 03/11] dmaengine: dw: set polarity of handshake interface Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 04/11] dmaengine: dw: override LLP support if asked in platform data Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 05/11] serial: 8250_dma: switch to new dmaengine_terminate_* API Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 06/11] serial: 8250_dma: adjust DMA address of the UART Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 07/11] serial: 8250: enable AFE on ports where FIFO is 16 bytes Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 08/11] serial: 8250_lpss: split LPSS driver to separate module Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 09/11] serial: 8250_lpss: move Quark code from PCI driver Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 10/11] serial: 8250_lpss: enable MSI for Intel Quark Andy Shevchenko
2016-05-06 15:17 ` [PATCH v5 11/11] serial: 8250_lpss: enable DMA on Intel Quark UART Andy Shevchenko
2016-05-12 15:06 ` [PATCH v5 00/11] serial: 8250: split LPSS to 8250_lpss, enable DMA on Quark Andy Shevchenko
2016-05-12 15:59 ` Vinod Koul
2016-05-19 1:18 ` Bryan O'Donoghue
2016-05-24 17:37 ` Andy Shevchenko
2016-05-24 18:08 ` Andy Shevchenko
2016-05-26 16:36 ` Bryan O'Donoghue
2016-06-07 10:04 ` Andy Shevchenko
2016-06-12 17:13 ` Bryan O'Donoghue
2016-06-13 11:16 ` Andy Shevchenko
2016-05-26 16:11 ` Bryan O'Donoghue [this message]
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