smbios.ko probes successfully if i disable acpi sysresource, fails if i do not

[John Baldwin]

On Thursday 26 October 2006 12:28, Nate Lawson wrote:
> John Utz wrote:
> > Hello;
> > 
> > as you may know i am attempting to use fbsd's smbios functionality to 
> > support porting the linux i8k-utils dell smbios keyboard and fan stuff.
> > 
> > i just discovered today that disabling sysresource allows the module to 
> > attach.
> > 
> > so, here's the part that i'd love some help with understanding:
> > 
> > 1. with acpi enabled, is smbios.ko supposed to be asking acpi for a 
> > resource handle or something?
> > 
> > 2. is acpi_resource.c behaving in error? should it not be consuming the 
> > smbios startaddr?
> > 
> > note that startaddr for smbios is 0xf000, bios.c looks for pnpbios and 
> > pcibios starting at 0xe000 and completely ignores smbios.
> > 
> > it seems to me that either statement 1 or 2 is correct, but not both.
> > 
> > of course, i could be totally wrong, can anybody enlighten me?
> 
> ACPI reserves sysresource objects for downstream devices.  Then, those 
> devices get the resources they request via ACPI.  Anyway, all this 
> should be transparent to the downstream devices.  They shouldn't care if 
> they're getting their resources from nexus (top, pseudo-device) or acpi.
> 
> Are you using bus_alloc_resource() or the equivalent to get the 
> resources in your driver?  It transparently maps resource requests to 
> upstream devices.  Please send the output of devinfo -rv with your 
> driver installed, both with and without sysresource enabled in ACPI.

smbios is attached to nexus though, so acpi isn't upstream.

-- 
John Baldwin