Messages in this thread | | | Date | Fri, 23 May 2008 11:18:25 -0700 | From | Arjan van de Ven <> | Subject | Re: Enable mmconf access to PCI ECS for all AMD fam10h systems |
| |
On Fri, 23 May 2008 10:57:22 -0700 "Yinghai Lu" <yhlu.kernel@gmail.com> wrote:
> On Fri, May 23, 2008 at 5:46 AM, Robert Richter > <robert.richter@amd.com> wrote: > > Yinghai, > > > > We would like to enable ECS for all fam10h systems. What was the > > reason for patch 5f0b2976 that enables it for Sun systems only? If > > there are no objections, this patch should be reverted. > > Someone express the concern about touching MSR. Arjan or Andi? > > for those of system that doesn't have MCFG table there, they could use > pci=check_enable_amd_mmconf to enable it forcely.
using MMIO if the bios doesn't allow it via MCFG is a huge mistake and shouldn't be done.
Using the extended port IO version is actually perfectly reasonable to me and I would encourage that to be in the kernel (and be used in favor of MCFG if the port IO method is there)
| |