Kostas Gewrgiou wrote: > > On Wed, 20 Jun 2001, Michel Dänzer wrote: > > > Kostas Gewrgiou wrote: > > > > > > Since fbdev is handling the console there is no need to restore > > > vga fonts/colormap (i don't know if it is possible to run vgacon > > > under some of the ibm machines, if yes then it is needed there) > > > > That's my point, either we don't need anything anywhere (we don't need to > > save the VGA mode with fbcon) or we need nothing on some machines and > > everything on others. Saving and restoring only part of the VGA context > > doesn't make sense to me. > > Hmm you have a point there, i have a feeling that the text/colormap > was not crasing in the isa i/o access but in the isa mem ones, > (we mmap 0xA0000, i wonder what lives there since isa mem definitely > isn't)
The segfault occurred in an inb(), is that also used for ISA mem? > > > > So, what can we do? We can't put arch or OS specific code to handle > > > > this in vgaHW either. Maybe it's really best to handle it in the > > > > kernel? > > > > > > Everything that is os/arch specific more or less goes in > > > xfree86/os-support adding something like > > > xf86isIOAvailable(device/screen/whatever) is what we need. > > > > Which won't work without kernel assistance, will it? So we could as well > > just let the existing syscall handle everything. > > We don't need any more kernel assistance, just to fix the syscall to > return an error for the AGP bus of Uni-N if we can't do any io there. Agreed, that's what I meant by 'let the existing syscall handle everything'. :) > > > We still need to workout a way to handle multiple ioBases btw, there are > > > other paths in the code that will do io in the wrong base and we need > > > to handle this. Anyone with a second card in the pci bus will end up > > > getting the isa io access for the agp card in the wrong card and thats > > > not what we want. > > > > Yup, but that's for 4.2 at the earliest... > > Since 4.1 went out broken we can't do much now, the best solution will > be to disable the ioctl (since we don't get the right base anyway) You mean the syscall, right? -- Earthling Michel Dänzer (MrCooper) \ Debian GNU/Linux (powerpc) developer CS student, Free Software enthusiast \ XFree86 and DRI project member
