I've seen about one case in three years where this has actually been
correlated with the real cause of failure, and we've trained people to
freak out about X_WARNING, so let's be less alarmist.
Some BIOSes (hi XGI!) will attempt to enumerate the PCI bus by asking
for the config space of every possible device number. This despite
perfectly functional BIOS methods to enumerate the bus exactly.
Use only %di to name the PCI register to read/write, rather than %edi.
DOS is only expecting the base PCI config space anyway, and the BIOS
might be using the high bits of %edi.
The address written to 0xcf8 contains the PCI slot address to send the
config cycle to. However, we would ignore that and always send the
cycle to the device whose BIOS we were running. This breaks some
integrated graphics platforms that have explicit knowledge about the
system's host bridge, for example.
The author of the int10 code looked at the VBIOS POSTing code
in DOSEMU to get some initial idea on how to POST a VBIOS.
To give credit to the DOSEMU Team for this inspiration a comment
was added to the code which could suggest that code from the
GPLed DOSEMU was directly incorporated into this code.
This patch should clearify the situation.
Print debug messages only when the appropriate debug bit is set in the
8086 state vector, so you can focus in on the call you're actually
interested in.
xf86ReadLegacyBIOS is only used by one function in int10/generic.c.
Move a generic implementation of that function there, rename it to
read_legcay_BIOS, and delete all remnants of it from all other places.
Convert all uses of PCITAG in int10 and vgaHW to 'struct pci_device'.
This allows the conversion of xf86ReadLegacyVideoBIOS and
xf86MapDomainMemory to 'struct pci_device' from PCITAG.
CFLAGS is a user variable, extracted from the environment at configure time
and settable by the user at build time. We must not override this variable.
Conflicts:
hw/xfree86/common/xf86Init.c
hw/xfree86/int10/pci.c
hw/xfree86/scanpci/xf86PciData.h
hw/xfree86/scanpci/xf86PciStdIds.h
hw/xfree86/scanpci/xf86PciStr.h
hw/xfree86/scanpci/xf86ScanPci.h
hw/xfree86/utils/pcitweak/pcitweak.c
hw/xfree86/utils/scanpci/scanpci.c
Re-removed most of the conflicting files.
Get rid of almost all uses of these definitions. They're still defined for
delinquent out-of-tree drivers, and also for the Mesa build. As well as
for miinitext.c. But largely gone.
xf86ExtendedInitInt10 to xf86int10GetBiosLocationType and
xf86int10GetBiosSegment.
These changes were tested on MGA hardware on x86-64 with various
combinations of InitPrimary and BiosLocation.
tag bits when I originally coded it. I mistakenly thought that the
original code masked off the PCI function bits, so I just always
passed 0 as the function. That was a mistake.
XFree86LOADER ifdefs, non-loadable hasn't been supported for a while
now. Remove completely gratuitious REMOVE_LOADER_CHECK_MODULE_INFO
ifdefs surrounding a call to a function added in XFree86 4.1 (!).
Miscellaneous static markings.