On Thu, Jun 13, 2024 at 10:04 AM Manuel Bouyer <bou...@antioche.eu.org> wrote:
> On Thu, Jun 13, 2024 at 09:58:34AM -0400, Alexander Jacocks wrote: > > > > > On Jun 13, 2024, at 8:44?AM, Manuel Bouyer <bou...@antioche.eu.org> > wrote: > > > > > > ?On Thu, Jun 13, 2024 at 08:39:37AM -0400, Alexander Jacocks wrote: > > >> > > >>>> On Jun 13, 2024, at 5:51?AM, Manuel Bouyer <bou...@antioche.eu.org> > wrote: > > >>> > > >>> ?On Wed, Jun 12, 2024 at 10:29:59AM -0400, Alexander Jacocks wrote: > > >>>> And it was pointed out to me that my paste of the DMA error was > incorrect. > > >>>> Here is the correct log: > > >>>> [ 1.000004] pci0 at mainbus0 bus 0: configuration mode 1 > > >>>> [ 1.000004] pci0: i/o space, memory space enabled, rd/line, > rd/mult, > > >>>> wr/inv ok > > >>>> [ 1.000004] pchb0 at pci0 dev 0 function 0: Silicon Integrated > System > > >>>> 5597/5598 Host Bridge (rev. 0x10) > > >>>> [ 1.000004] pcib0 at pci0 dev 1 function 0: Silicon Integrated > System > > >>>> 85C503 or 5597/5598 ISA Bridge (rev. 0x01) > > >>>> [ 1.000004] siside0 at pci0 dev 1 function 1 > > >>>> [ 1.000004] siside0: Silicon Integrated Systems 5597/5598 IDE > > >>>> controller (rev. 0xd0) > > >>>> [ 1.000004] siside0: bus-master DMA support present, but unused > > >>>> (couldn't map registers) > > >>> > > >>> The problem here is that the DMA registers are not mappable, so > can't be > > >>> used by the driver. Some BIOS settings (like PnP support) may affect > this. > > >>> > > >>>> [ 1.000004] siside0: secondary channel ignored (disabled) > > >>>> I tried simply forcing DMA on by adding the 0x0001 flag to the > pciide > > >>>> driver, with a minor mod to the GENERIC kernel, but it didn't > change the > > >>>> behavior any. I also attempted to add in a Maxtor SATA-150 PCI IDE > > >>> > > >>> Yes, that won't work in this case. > > >> > > >> Interesting. I was able to verify that Windows 98SE is able to enable > DMA support, even with the current BIOS settings. This BIOS is pretty > limited in what can be configured, unfortunately. > > > > > > From memory, win98 was the "PnP OS". it had to be disabled for others
