Re: [Arm-netbook] Top Priority Software Tasks

2017-11-30 Thread Luke Kenneth Casson Leighton 
On Thu, Nov 30, 2017 at 2:59 PM, Andreas Baierl  wrote:

> He announced the status of his project just recently:
> https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/opengl-vulkan-mesa-gallium3d/991441-there-s-an-arm-mali-gallium3d-driver-still-being-developed?p=991690#post991690

 faaan-fg-tastic!

> The repository to follow is hosted here: https://github.com/yuq/mesa-lima

 h that's what i was looking for.  ha that would be f*g
amazing to have, it's the last piece that would make the A20 fully
libre.

thank you andreas.

l.

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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-30 Thread Andreas Baierl 

Am 30.11.2017 um 15:25 schrieb Luke Kenneth Casson Leighton:

---
crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68


On Thu, Nov 30, 2017 at 1:37 PM, Elena ``of Valhalla''
 wrote:

On 2017-11-30 at 08:14:09 -0500, Stefan Monnier wrote:

and informations are being kept updated on the debian wiki:
https://wiki.debian.org/MaliGraphics (and related pages)
but there doesn't seem to be much work done for allwinner SoCs, at the
moment.

According to that web-page, there shouldn't need to be anything
Allwinner-specific anyway, right (other than adding the GPU nodes to
the relevant DTS)?

The talk in the video explained that right now packages have to be
SoC-specific (and there may even be some allwinner-specific code that is
required, but not necessarily available).

I don't remember all the details, however, and the talk explains them
better than I could (sorry for the lack of text-based references).

  no problem elena - i tracked it down:
  http://linux-sunxi.org/Mali400#Binary_driver

  two variants / sets of instructions:

  http://linux-sunxi.org/Mali_binary_driver
  
http://free-electrons.com/blog/mali-opengl-support-on-allwinner-platforms-with-mainline-linux/

  those are proprietary drivers so they will most definitely *NOT* be
going onto the RYF-Certified EOMA68-A20 Cards.  btw that reminds me,
does anyone know the progress of the guy working for AMD who in his
spare time is implementing MALI400 OpenGL compatible entirely libre
drivers?  he's *referencing* libv's work but is reimplementing the
library from scratch.  he... maay run into difficulties as MALI400 is
so basic it requires significant parts to be done in software
(CPU-side).
Mesa kmscube demo is running, though some/many components are still 
missing to call it complete.


He announced the status of his project just recently:
https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/opengl-vulkan-mesa-gallium3d/991441-there-s-an-arm-mali-gallium3d-driver-still-being-developed?p=991690#post991690

The repository to follow is hosted here: https://github.com/yuq/mesa-lima

Regards
Andreas

l.

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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-30 Thread Luke Kenneth Casson Leighton 
---
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On Thu, Nov 30, 2017 at 1:37 PM, Elena ``of Valhalla''
 wrote:
> On 2017-11-30 at 08:14:09 -0500, Stefan Monnier wrote:
>> > and informations are being kept updated on the debian wiki:
>> > https://wiki.debian.org/MaliGraphics (and related pages)
>> > but there doesn't seem to be much work done for allwinner SoCs, at the
>> > moment.
>>
>> According to that web-page, there shouldn't need to be anything
>> Allwinner-specific anyway, right (other than adding the GPU nodes to
>> the relevant DTS)?
>
> The talk in the video explained that right now packages have to be
> SoC-specific (and there may even be some allwinner-specific code that is
> required, but not necessarily available).
>
> I don't remember all the details, however, and the talk explains them
> better than I could (sorry for the lack of text-based references).

 no problem elena - i tracked it down:
 http://linux-sunxi.org/Mali400#Binary_driver

 two variants / sets of instructions:

 http://linux-sunxi.org/Mali_binary_driver
 
http://free-electrons.com/blog/mali-opengl-support-on-allwinner-platforms-with-mainline-linux/

 those are proprietary drivers so they will most definitely *NOT* be
going onto the RYF-Certified EOMA68-A20 Cards.  btw that reminds me,
does anyone know the progress of the guy working for AMD who in his
spare time is implementing MALI400 OpenGL compatible entirely libre
drivers?  he's *referencing* libv's work but is reimplementing the
library from scratch.  he... maay run into difficulties as MALI400 is
so basic it requires significant parts to be done in software
(CPU-side).

l.

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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-30 Thread Stefan Monnier 
> and informations are being kept updated on the debian wiki:
> https://wiki.debian.org/MaliGraphics (and related pages)
> but there doesn't seem to be much work done for allwinner SoCs, at the
> moment.

According to that web-page, there shouldn't need to be anything
Allwinner-specific anyway, right (other than adding the GPU nodes to
the relevant DTS)?


Stefan


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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-30 Thread Elena ``of Valhalla'' 
On 2017-11-29 at 21:00:37 -0500, Stefan Monnier wrote:
> Stefan "who doesn't know if the proprietary binary-blob MALI
> driver currently works with mainline Linux"

There was a talk on that blob at the debian minidebconf cambridge last
weekend (video available)

https://wiki.debian.org/DebianEvents/gb/2017/MiniDebConfCambridge/Sliepen

and informations are being kept updated on the debian wiki:

https://wiki.debian.org/MaliGraphics (and related pages)

but there doesn't seem to be much work done for allwinner SoCs, at the
moment.

-- 
Elena ``of Valhalla''

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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-29 Thread Stefan Monnier 
> As I eagerly await the preproduction board, I figure it would be a good idea
> to touch base on what needs doing on the software side.

IIUC now that DRM support for the A20 is in mainline (well, not quite
there yet, but it's in linux-next), the next thing is video decoding,
I think.  There's currently work going on for that up at
https://github.com/free-electrons/linux-cedrus, so help would be welcome
there.


Stefan "who doesn't know if the proprietary binary-blob MALI
driver currently works with mainline Linux"


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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-29 Thread Luke Kenneth Casson Leighton 
On Wed, Nov 29, 2017 at 8:46 AM, Pablo Rath  wrote:

> Now I am confused. In this reply
> (http://lists.phcomp.co.uk/pipermail/arm-netbook/2017-May/013653.html)
> you have told me the reason for the kernel bug is/was a power
> instability. So I thought this is going to be fixed and said kernel bug
> is no more.

 i solved that by simply cutting off NAND entirely and re-routing the
pins on SD/MMC so that MMC0 is now the user-facing SD slot and MMC2 is
the EOMA68 SD/MMC interface.

 both are eGON BOOTROM interfaces.

 previously i was forced to route MMC3 to the user-facing SD slot and
MMC0 to the EOMA68 interface.

 MMC3 is *not* bootable from the A20 eGON BOOTROM.

 i think that's what it was.  it's been too long to recall exact details.

l.

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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-29 Thread Pablo Rath 
On Wed, Nov 29, 2017 at 08:16:05AM +, Luke Kenneth Casson Leighton wrote:
> 
> On Tue, Nov 28, 2017 at 8:51 PM, Tzafrir Cohen  wrote:
> 
> > Originally the issue was that it has failed to boot. Issues with the
> > boot loader. What about those? An issue with kernel >= 4.9 or so.
> 
>  my understanding was, when i looked at this, was it's something to do
> with how old-uboot initialises the processor can't remember the
> details.  a "fix" was added as a parameter that allowed old-u-boot to
> boot newer kernels, and new-u-boot to boot older kernels.
> 
>  however last year, when investigating, there was *another* issue,
> which is that somewhere around... i think it was 4.7rc1 ... it would
> systematically and totally unreliably come to a grinding halt at
> anywhere between 30 and 180 seconds into the boot.
> 
>  i think i maybe did a HUNDRED AND FIFTY separate kernel compiles (git
> bisect and other techniques), trying for several DAYS to narrow down
> which commit was responsible, but because of the unreliability of the
> crashing it was near-impossible to narrow down.  the best / closest i
> could get was something like, "4.7rc1 is fine, 4.7rc5 isn't".
> 
>  since then whatever underlying bug is there MIGHT have been tracked
> down and fixed, as there were people who were vaaaguely aware of the
> problem, on other hardware.

Now I am confused. In this reply
(http://lists.phcomp.co.uk/pipermail/arm-netbook/2017-May/013653.html)
you have told me the reason for the kernel bug is/was a power
instability. So I thought this is going to be fixed and said kernel bug
is no more. 
Are there multiple kernel bugs?

kind regards
Pablo 

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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-28 Thread Bill Kontos 
On Tue, Nov 28, 2017 at 9:03 PM, Luke Kenneth Casson Leighton
 wrote:
> ---
> crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68

>  remember: with the sunxi 3.4.104 kernel *xserver fb turbo works*.
> libcedrus *works*.  acceleration of video decoding and display *works*
> in firefox and chrome (although i didn't test the accelerated display
> bit because it requires OpenGL and i refuse to install the proprietary
> OpenGL MALI library).

Maybe when you start a future crowdfunding campaign for another card
it would be a good idea to look at what functionality is missing from
mainline and factor in some extra costs around paying people to
mainline these patches.

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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-28 Thread Luke Kenneth Casson Leighton 
---
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On Tue, Nov 28, 2017 at 5:13 PM, Bill Kontos  wrote:
> On Tue, Nov 28, 2017 at 3:11 AM, Adam Van Ymeren  wrote:
>> Hey Luke,
>
>> I've started looking at http://rhombus-tech.net/allwinner_a10/source_code/ 
>> for inspiration.
>>
>> But I'd like to know which tasks are a priority for you to deliver the 
>> current crowd supply pledges.
>
>
> I think finding out what that bug that prevents us from using a modern
> version of linux is a high priority too.

 the list of peripherals and features supported is right there on the
linux mainline sunxi page.  when it's at 100% full and complete
support for *all* hardware features (VPU, 2D engine etc. included),
and the available libraries (libcedrus through libvdpau,
xserver-xorg-fb-turbo and more) have *all* been updated to support
that linux mainline kernel version, then and *only* then is it okay to
*consider* abandoning the many months of (tested, proven) work done
over the past few years and to *consider* releasing updated OSes to go
on top of them.

 remember: with the sunxi 3.4.104 kernel *xserver fb turbo works*.
libcedrus *works*.  acceleration of video decoding and display *works*
in firefox and chrome (although i didn't test the accelerated display
bit because it requires OpenGL and i refuse to install the proprietary
OpenGL MALI library).

 by converting over right now to the linux mainline kernel *all those
accelerated functions are cut off*, plus even some critical
peripherals are cut off, as well.

 l.

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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-28 Thread Bill Kontos 
On Tue, Nov 28, 2017 at 3:11 AM, Adam Van Ymeren  wrote:
> Hey Luke,

> I've started looking at http://rhombus-tech.net/allwinner_a10/source_code/ 
> for inspiration.
>
> But I'd like to know which tasks are a priority for you to deliver the 
> current crowd supply pledges.


I think finding out what that bug that prevents us from using a modern
version of linux is a high priority too.

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Re: [Arm-netbook] Top Priority Software Tasks

2017-11-28 Thread Luke Kenneth Casson Leighton 
---
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On Tue, Nov 28, 2017 at 1:11 AM, Adam Van Ymeren  wrote:
> Hey Luke,
>
> As I eagerly await the preproduction board, I figure it would be a good idea 
> to touch base on what needs doing on the software side.

 hmmm well having someone confirm that the OSes run would be good (wih
systemd removed as an absolute top priority, sole exception being
fedora).

 next up would be working on a distribution mechanism for the images.
my feeling is, setting up a bittorent network, a simple (SMALL)
script/image that self-boots then grabs the image and drops it onto
the target sd card.

 or... some instructions on how people can directly download then get
the image onto a microsd card

 reason: the budget's simplly not large enough now ship out a thousand
4GB / 8GB microsd cards with the OS pre-installed on it.  people are
going to have to get their own (or use one they already have).

> I've started looking at http://rhombus-tech.net/allwinner_a10/source_code/ 
> for inspiration.
>
> But I'd like to know which tasks are a priority for you to deliver the 
> current crowd supply pledges.

 all hardware-related.

l.

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[Arm-netbook] Top Priority Software Tasks

2017-11-27 Thread Adam Van Ymeren 
Hey Luke,

As I eagerly await the preproduction board, I figure it would be a good idea to 
touch base on what needs doing on the software side.

I've started looking at http://rhombus-tech.net/allwinner_a10/source_code/ for 
inspiration.

But I'd like to know which tasks are a priority for you to deliver the current 
crowd supply pledges.

Cheers!  Hope the Shenzen was fun.
-Adam

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