Re: [PATCH v8 2/4] fpga manager: add sysfs interface document

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On Tue 2015-02-17 11:07:53, Rob Landley wrote:
> 
> 
> On 02/15/2015 04:40 PM, Pavel Machek wrote:
> > On Wed 2015-01-21 13:27:00, Jason Gunthorpe wrote:
> >> On Wed, Jan 21, 2015 at 06:33:12PM +0200, Pantelis Antoniou wrote:
> >> My point is that the current firmware layer is overly cautious and
> >> FPGAs are very big. My current project on small Xilinx device has a
> >> 10MB programming file. The biggest Xilinx device today has a max
> >> bitfile size around 122MB.
> >>
> >> So keeping that much memory pinned in the kernel when I can prove it
> >> is uncessary for my system (either because there is no suspend/resume
> >> possibility, or because I know the CPU can always access the
> >> filesytem) is very undesirable.
> > 
> > Well, your current device aalso has 1GB RAM, no?
> 
> Unnecessarily pinning 10% of your ram is a good solution?

Never said that. But I'd rather have _some_ API proposed, then try to
design in everthing including kitchen sink and do nothing.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux