Messages in this thread Patch in this message | | | Date | Mon, 14 Feb 2005 16:46:20 +0100 | From | Piotr Kaczuba <> | Subject | Re: PCI access mode on x86_64 |
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On Mon, Feb 14, 2005 at 01:02:05PM +0100, Andi Kleen wrote: > On Mon, Feb 14, 2005 at 10:47:01AM +0100, Piotr Kaczuba wrote: > > On Mon, Feb 14, 2005 at 10:18:43AM +0100, Andi Kleen wrote: > > > Piotr Kaczuba <pepe@attika.ath.cx> writes: > > > > Is there a reason why "PCI access mode" config option isn't available for > > > > x86_64? Due to this, PCIE config options aren't available either. > > > > > > There is no 64bit PCI BIOS, so access is always direct. > > > > > > I assume you mean mmconfig access with "PCIE config options", that is > > > a separate config option and available. > > > > I mean the PCIEPORTBUS option which depends on PCI_GOMMCONFIG or > > PCI_GOANY. I assume that due to PCI_MMCONFIG / PCI_GOMMCONFIG mismatch > > it's not available on x86_64. > > Ok, that's a bug in PCIEPORTBUS. Best is probably to > completely remove the dependency, it doesn't make much sense > (the code has to handle the case of mmconfig not being available at > runtime anyways) > > -Andi > > Remove bogus dependency in PCI Express root driver. > > Signed-off-by: Andi Kleen <ak@suse.de> > > diff -u linux-2.6.11rc3/drivers/pci/pcie/Kconfig-o linux-2.6.11rc3/drivers/pci/pcie/Kconfig > --- linux-2.6.11rc3/drivers/pci/pcie/Kconfig-o 2005-02-04 09:13:10.000000000 +0100 > +++ linux-2.6.11rc3/drivers/pci/pcie/Kconfig 2005-02-14 12:59:46.000000000 +0100 > @@ -3,7 +3,6 @@ > # > config PCIEPORTBUS > bool "PCI Express support" > - depends on PCI_GOMMCONFIG || PCI_GOANY > default n > > ---help--- >
This one is needed, too.
Piotr Kaczuba
--- linux.old/arch/x86_64/Kconfig 2005-02-14 16:37:33.000000000 +0100 +++ linux/arch/x86_64/Kconfig 2005-02-14 16:37:18.000000000 +0100 @@ -399,6 +399,8 @@ from i386. Requires that the driver writer used memory barriers properly.
+source "drivers/pci/pcie/Kconfig" + source "drivers/pci/Kconfig"
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