Re: [RFC PATCH v2 00/13] Kernel based bootsplash

Max Staudt
2018-01-03T17:56:35Z

On 12/31/2017 01:35 PM, Alan Cox wrote:
> For embedded every KB counts. That is likely to remain the same for some
> time because at the end of the day small devices are constrained about the
> amount of SRAM you can put on die and the amount of power you can afford
> for DRAM.

Fascinating, thanks for the insight!

Now I have a really good reason to separate the splash from fbcon.

>>> this by ignoring it an adding a hole new layer on top. That doesn't
>>> sound like any kind of good idea to me.
>>
>> Yes. It is a vast improvement over the status quo, and people are asking for it. And the bootsplash layer can be moved elsewhere, just change the hooks and keep the loading/rendering.
>>
>> Also, gfx driver loading isn't a dumpster fire, it mostly just works. It just mustn't be done 100% carelessly.
>
> It's a total mess (the fbcon layer loading and locking that is). Doing all
> this extra kernel stuff is like sitting in a hole and instead of trying to
> climb out digging the hole bigger so you've got more room to sit in it.
I'm not sure what exactly you're unhappy about - are you complaining about the kernel hack in KMS drivers which allows them to kick out vesafb/efifb?

Max