Re: [PATCH] atyfb: vblank irq support

[Alexander Kern <alex.kern@gmx.de>]

Am Sonntag, 25. Juli 2004 12:16 schrieb Ville Syrjälä:
> On Sun, Jul 25, 2004 at 01:12:18AM +0200, Alexander Kern wrote:
> > Am Donnerstag, 22. Juli 2004 20:49 schrieb Ville Syrjälä:
> > > This patch adds vblank interrupt support to atyfb. The added features
> > > are FB_ACTIVATE_VBL flag for panning and FBIO_WAITFORVSYNC ioctl.
> > >
> > > The code is basically copied from matroxfb. I've tested it on two
> > > laptops (Mobility and LT Pro) using DirectFB.
> >
> > Thanks Ville,
> >
> > I had added last three patches to my tree.
> > atyfb: Rage LT LCD register access.
> > atyfb: Blank LCD by turning off backlight voltage
> > atyfb: vblank irq support
> >
> > atyfb: Add option to disable hardware cursor. <----This one I add in
> > another way. Option noaccel deactivate hwcursor too.
> > The reason is, that I redone hwcursor part and it works now for me,
> > please test it.
>
> Great. I'll test it later today.
>
> > Here is a patch again vanilla 2.6.7 + latest known JSimmons patch
> >
> > P.S. Now the last consumer from fb_load_cursor_image is neo driver.
> > Should we drop this function, it's buggy!
> >
> > Steel on my TODO list:
> >
> > Issue with 16bpp mode, brocken boot logo, fbi has problems too.
> > Issue with 24bpp mode and fbtest, yellow parts of pinguin image are
> > blue!!!
>
> I've never tried 24bpp because of limited acceleration support. I haven't
> even bothered implenenting 24bpp acceleration in the DirectFB driver.
Interesting, I thought 24bpp hardware acceleration is complete? What is 
missed?
>
> My only todo item is mtrr support. I have a patch which simply tries to
> add fix.smem_len sized wrcomb mtrr. But that will only work with
> power-of-two memory size. Also it won't work with a 8MB card when the
> auxiliary aperture isn't used. Maybe an 8MB wrcomb mtrr + an overlapping
> uncachable mtrr covering the register page might be better. Will that sort
> of thing work on all systems?


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