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Date: Fri, 23 May 2008 11:18:25 -0700 From: Arjan van de Ven <arjan@...radead.org> To: "Yinghai Lu" <yhlu.kernel@...il.com> Cc: "Robert Richter" <robert.richter@....com>, "Thomas Gleixner" <tglx@...utronix.de>, "Ingo Molnar" <mingo@...e.hu>, LKML <linux-kernel@...r.kernel.org>, "Andi Kleen" <andi@...stfloor.org> 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@...il.com> wrote: > On Fri, May 23, 2008 at 5:46 AM, Robert Richter > <robert.richter@....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) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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