Running with VGA

[Li-Ta Lo]

On Thu, 2005-01-13 at 20:26, YhLu wrote:
> No, Top to down will more worse.
> 
> 1. I thank Northbridge PCI_DEV(0, 0x18, 0)... should be initial before
> CPU....
> 2. In tree apic cluster is after pci_domain.....
> 

The northbridge .init is 0. The .init of apic initialize the CPU.
So I don't think a top down dev_initialize() would make it worse.

The only problem is how do we do a non-recursive broad first
tree traversal?

Ollie

> YH
> 
> -----Original Message-----
> From: Li-Ta Lo [mailto:ollie at lanl.gov] 
> Sent: Thursday, January 13, 2005 7:11 PM
> To: YhLu
> Cc: Sagiv Yefet; LinuxBIOS
> Subject: RE: Running with VGA
> 
> On Thu, 2005-01-13 at 20:00, YhLu wrote:
> > I would change dev_initalize to following
> > void dev_initialize(void)
> > {
> >         struct device *dev;
> > 
> >         printk_info("Initializing devices...\n");
> > #if CONFIG_CONSOLE_VGA == 1
> >         for (dev = all_devices; dev; dev = dev->next) {
> >                 if (dev->enabled && !dev->initialized &&
> >                         dev->ops && dev->ops->init)
> >                 {
> >                         if( dev->on_mainboard && (dev->rom_address!=0))
> > continue;
> >                         printk_debug("%s init\n", dev_path(dev));
> >                         dev->initialized = 1;
> >                         dev->ops->init(dev);
> >                 }
> >         }
> > #endif
> >         for (dev = all_devices; dev; dev = dev->next) {
> >                 if (dev->enabled && !dev->initialized &&
> >                         dev->ops && dev->ops->init)
> >                 {
> >                         printk_debug("%s init\n", dev_path(dev));
> >                         dev->initialized = 1;
> >                         dev->ops->init(dev);
> >                 }
> >         }
> >         printk_info("Devices initialized\n");
> > }
> > 
> 
> If we really have to do that, I think we should change the init order
> to "top to down" instead of "first to last" in the device tree.
> 
> Ollie
> 
> > -----Original Message-----
> > From: YhLu 
> > Sent: Thursday, January 13, 2005 6:51 PM
> > To: Li-Ta Lo
> > Cc: Sagiv Yefet; LinuxBIOS
> > Subject: RE: Running with VGA
> > 
> > It seems after if after cpu init do the onboard vga init, it will work.
> > 
> > The CPU init only do the init ECC and clear that after 1M. ... Werid! And
> it
> > is not wiped out after power off.
> > 
> > 
> > YH
> > 
> > -----Original Message-----
> > From: Li-Ta Lo [mailto:ollie at lanl.gov] 
> > Sent: Thursday, January 13, 2005 3:15 PM
> > To: YhLu
> > Cc: Sagiv Yefet; LinuxBIOS
> > Subject: RE: Running with VGA
> > 
> > On Thu, 2005-01-13 at 16:23, YhLu wrote:
> > > S2892 has onboard atirage xl
> > > S2895 has no onboard.
> > > 
> > 
> > With exactly the same chip and BIOS? Then probably the order
> > of calling device::init() does matter.
> > 
> > Ollie
> > 
> > > -----Original Message-----
> > > From: Li-Ta Lo [mailto:ollie at lanl.gov] 
> > > Sent: Thursday, January 13, 2005 3:10 PM
> > > To: YhLu
> > > Cc: Sagiv Yefet; LinuxBIOS
> > > Subject: RE: Running with VGA
> > > 
> > > On Thu, 2005-01-13 at 15:45, YhLu wrote:
> > > > No, no problem.
> > > > 
> > > > Same addon card (ati rage xl) (pci) on S2895 works well.
> > > > 
> > > 
> > > I am confused. Are you using S2895 or S2892? And is the rage xl
> > > on board or as an addon card?
> > > 
> > > Ollie
> > > 
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