Messages in this thread | | | From | Koba Ko <> | Date | Tue, 7 Jul 2020 11:27:59 +0800 | Subject | Re: [Issue]platform/x86: iommu: System can't shutdown because iommu driver keeps checking the status of DMA_GSTS_TES |
| |
Dear Baolu, On Tue, Jun 30, 2020 at 3:52 PM Lu Baolu <baolu.lu@linux.intel.com> wrote: > > Hi Koba, > > On 2020/6/30 15:31, Koba Ko wrote: > > On Mon, Jun 15, 2020 at 3:20 PM Lu Baolu <baolu.lu@linux.intel.com> wrote: > >> > >> Hi Koba Ko, > >> > >> On 2020/6/15 11:19, Koba Ko wrote: > >>> hi All, > >>> I have a machine and there's only intel gpu. > >>> the secureboot and vt-d is enabled in BIOS. > >>> On the Ubuntu desktop, I do s2idle first and restart the machine. > >>> The machine can't restart successfully, so I need to press the > >>> power button to shutdown. > >>> I tried each of the following and the issue can't be triggered. > >>> 1. disable secure boot in BIOS. > >>> 2. intel_iommu=off. > >>> 3. intel_iomm=igfx_off. > >>> 4. nomodeset > >>> 5. i915.modeset=0. > >>> > >>> After I investigate further, find inte_iommu keeps checking the status > >>> of DMA_GSTS_TES. > >>> During the procedure of restart, the driver would disable iommu > >>> translation and > >>> check status of DMA_GSTS_TES until status of DMA_GSTS_TES is 0. > >>> > >>> If you need more information, I can provide it. > >> > >> Do you mind telling what platform is it? > >> > >> Best regards, > >> baolu > > Hi Baolu, > > Sorry, i missed your email. > > I'm running on TGL. > > My colleague has reported this on bugzilla. > > Have tested your patch and it works fine. > > https://bugzilla.kernel.org/show_bug.cgi?id=208363 > > > > Could you explain more about these patches!? Why do we need a flag > > for active iommu!? > > > > We're still investigating this issue. If we find out more, I'll let you > know. Thanks a lot for the reporting. > > Best regards, > baolu > Sorry for disturbing, Do you have any updates for this issue?! https://bugzilla.kernel.org/show_bug.cgi?id=208363
Koba KO
| |