On 12/09/13 18:20, Aleksandr Rybalko wrote:
On Sun, 8 Dec 2013 16:36:20 +0100
Marius Strobl <mar...@alchemy.franken.de> wrote:
On Thu, Dec 05, 2013 at 10:38:54PM +0000, Aleksandr Rybalko wrote:
Author: ray
Date: Thu Dec 5 22:38:53 2013
New Revision: 259016
URL: http://svnweb.freebsd.org/changeset/base/259016
Log:
Merge VT(9) project (a.k.a. newcons).
Reviewed by: nwhitehorn
MFC_to_10_after: re approval
Have you addressed any of the points raised in:
http://lists.freebsd.org/pipermail/freebsd-current/2013-October/045887.html
to get VT(9) at least en par with syscons(4) regarding being able to
use a hardware cursor, allowing different low-level console drivers
to compete for the same hardware etc. in the meantime?
Marius
Hello Marius!
Yes and No :)
Lets make it as list with short items:
1. Making these drivers work as low-level console.
2. Drivers priority.
3. Using hardware acceleration.
4. Using the 12 x 22 gallant font.
5. Allowing Xorg to map the frame buffer.
6. (Part of 5) Other register banks as needed.
7. Allowing late attachment.
Answers:
1. Works, I did testing on ARM board Efika MX with vt_fb_early driver.
(Still have to discuss several things with arm@ guys, then commit)
As I mentioned in my review, this particular code is a really weird
bug-filled copy of ofwfb.c, which already works as a low-level console
early in the boot process.
2. Works. F.e. amd64 start with vt_vga driver, then vt_kms driver
override it as more specific.
I think Marius meant having early-boot drivers bid amongst each other
for attachment....
3. Not used at all yet.
4. I like that font. If you want more "gallant" - I will help. Thanks
to Ed, newcons support any font dimensions.
5. It works, but only for those drivers which attach dev/fb/fbd, via
fbd devfs node (not accessible via vt(9) ioctls yet).
Could you provide more detail about how this is supposed to work? X
doesn't map at offset 0 in general, and that means that 100% of X UMS
drivers are currently broken with newcons.
6. IMO better to put it into some drm emulation.
7. Works in many combination. (
start w/ vga, load kms; (kms replace vga)
start w/o driver, load kms;
preload kms, start w/ vga; (kms replace vga)
preload kms, start w/o driver; (kms attached after drm node initialized)
)
Have to put your list on Newcons's wiki page too.
As I remember such long list of requirement you provide was based on
expectation that I want to replace syscons right now :)
But, for now we (me and x11 team) want to see it 10.0 as disabled by
default (just like in HEAD now), so peoples who want to help with debug
of new xorg and drm drivers will be able to see messages after KMS-xorg
starts.
Oh, looks like I forget what I have to say more. :)
So it will be said later, when I will less sleepy.
Anyway. Thanks a lot for your comments!!!
WBW
We should come up with a sunset plan for syscons, though.
-Nathan
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