lkml.org 
[lkml]   [2017]   [Oct]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 2/2] of/fdt: skip unflattening of disabled nodes
    On Tue, 3 Oct 2017, Frank Rowand wrote:

    > On 10/03/17 11:46, Nicolas Pitre wrote:
    > > On Tue, 3 Oct 2017, Rob Herring wrote:
    > >
    > >> For static DT usecases, we don't need the disabled nodes and can skip
    > >> unflattening. This saves a significant amount of RAM in memory constrained
    > >> cases. In one example on STM32F469, the RAM usage goes from 118K to 26K.
    > >>
    > >> There are a few cases in the kernel that modify the status property
    > >> dynamically. These all are changes from enabled to disabled, depend on
    > >> OF_DYNAMIC or are not FDT based (PDT based).
    > >>
    > >> Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
    > >> Cc: Frank Rowand <frowand.list@gmail.com>
    > >> Signed-off-by: Rob Herring <robh@kernel.org>
    > >
    > > Tested-by: Nicolas Pitre <nico@linaro.org>
    > >
    > >> ---
    > >> For more background, see this presentation from Nico:
    > >>
    > >> https://connect.linaro.org/resource/sfo17/sfo17-100/
    > >
    > > Oh my ... this is horrible ...
    >
    > I found the presentation to be quite good and useful.

    Thanks. I think the content is good. I'm just a terrible speaker.

    > The Linaro site does not have the slides, could you please send
    > me a copy?

    I've asked for the slides to be uploaded to the site. I've sent you a
    copy privately in the mean time.


    Nicolas

    \
     
     \ /
      Last update: 2017-10-05 20:30    [W:3.907 / U:0.004 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site