Re: fbdev: Garbage collect fbdev scrolling acceleration

2022-01-24 Thread Daniel Vetter
On Mon, Jan 24, 2022 at 7:27 PM Geert Uytterhoeven wrote: > > Hi Daniel et al, > > On Wed, Jan 19, 2022 at 4:39 PM Daniel Vetter wrote: > > On Thu, Jan 13, 2022 at 10:46:03PM +0100, Sven Schnelle wrote: > > > Helge Deller writes: > > > > I may have missed some discussions, but I'm objecting agai

Re: fbdev: Garbage collect fbdev scrolling acceleration

2022-01-24 Thread Geert Uytterhoeven
Hi Daniel et al, On Wed, Jan 19, 2022 at 4:39 PM Daniel Vetter wrote: > On Thu, Jan 13, 2022 at 10:46:03PM +0100, Sven Schnelle wrote: > > Helge Deller writes: > > > I may have missed some discussions, but I'm objecting against this patch: > > > > > > b3ec8cdf457e5 ("fbdev: Garbage collect f

Re: fbdev: Garbage collect fbdev scrolling acceleration

2022-01-19 Thread Sven Schnelle
Hi Daniel, Daniel Vetter writes: > On Wed, Jan 19, 2022 at 05:15:44PM +0100, Sven Schnelle wrote: >> Hi Daniel, >> >> Daniel Vetter writes: >> >> > On Thu, Jan 13, 2022 at 10:46:03PM +0100, Sven Schnelle wrote: >> >> Helge Deller writes: >> >> > Maybe on fast new x86 boxes the performance di

Re: fbdev: Garbage collect fbdev scrolling acceleration

2022-01-19 Thread Daniel Vetter
On Wed, Jan 19, 2022 at 05:15:44PM +0100, Sven Schnelle wrote: > Hi Daniel, > > Daniel Vetter writes: > > > On Thu, Jan 13, 2022 at 10:46:03PM +0100, Sven Schnelle wrote: > >> Helge Deller writes: > >> > Maybe on fast new x86 boxes the performance difference isn't huge, > >> > but for all old s

Re: fbdev: Garbage collect fbdev scrolling acceleration

2022-01-19 Thread Sven Schnelle
Hi Daniel, Daniel Vetter writes: > On Thu, Jan 13, 2022 at 10:46:03PM +0100, Sven Schnelle wrote: >> Helge Deller writes: >> > Maybe on fast new x86 boxes the performance difference isn't huge, >> > but for all old systems, or when emulated in qemu, this makes >> > a big difference. >> > >> > H

Re: fbdev: Garbage collect fbdev scrolling acceleration

2022-01-19 Thread Daniel Vetter
On Thu, Jan 13, 2022 at 10:46:03PM +0100, Sven Schnelle wrote: > Helge Deller writes: > > > I may have missed some discussions, but I'm objecting against this patch: > > > > b3ec8cdf457e5 ("fbdev: Garbage collect fbdev scrolling acceleration, > > part 1 (from TODO list)") > > > > Can we plea

Re: fbdev: Garbage collect fbdev scrolling acceleration

2022-01-13 Thread Sven Schnelle
Helge Deller writes: > I may have missed some discussions, but I'm objecting against this patch: > > b3ec8cdf457e5 ("fbdev: Garbage collect fbdev scrolling acceleration, > part 1 (from TODO list)") > > Can we please (partly) revert it and restore the scrolling behaviour, > where fbcon uses

Re: fbdev: Garbage collect fbdev scrolling acceleration

2022-01-13 Thread Helge Deller
I may have missed some discussions, but I'm objecting against this patch: b3ec8cdf457e5 ("fbdev: Garbage collect fbdev scrolling acceleration, part 1 (from TODO list)") Can we please (partly) revert it and restore the scrolling behaviour, where fbcon uses fb_copyarea() to copy the screen