On Mon, Jun 23, 2003 at 01:11:12PM +0100, Alan Cox wrote:
> On Llu, 2003-06-23 at 13:01, José Fonseca wrote:
> > I see. Well it really doesn't trouble me to rewrite the gamma driver
> > since I'll be changing all other drivers. Also the work I'm doing will
> > move a big chunk of each driver into common code (all the buffer
> > management), so there will be little to rewrite on the gamma driver
> > anyway. If it's OK with you after this is done you could lend me your
> > Gamma for a couple of weeks - you're still leaving in Swansea, aren't
> > you?.
>
> Yep.
>
> > > BTW in the good news department, I received vendor contributed VIA and
> > > S3 DRI/DRM drivers yesterday. The kernel side needs some work yet but
> > > nothing major (except when it hits FreeBSD I guess).
> >
> > That's awesome news! Exactly for which chips are these drivers meant for
> > (if you can disclose now)? The Castlerock I suppose.
>
> Savage: Savage MX/IX/ SuperSavage/ ProSavage/ Twister/K
It seams that at the moment DRI is only enabled for the Twister and
ProSavage:
if ((psav->Chipset == S3_TWISTER)
|| (psav->Chipset == S3_PROSAVAGE)) {
/* Setup DRI after visuals have been established */
psav->directRenderingEnabled = SAVAGEDRIScreenInit(pScreen);
} else
psav->directRenderingEnabled = FALSE;
But AFAIK all these chips are based on the Savage4 design so it should
be easy to extend the driver to support it.
Another thing I noticed is that the Savage DRM is just a stub doesn't
touch the hardware - the DMA is fired directly by the userspace 3D
driver. I may be wrong but this can compromise the system security.
But forget about that. My recation is WOW! It's a lot of work put on
these drivers and now made available in open source!!
José Fonseca
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