search for: d3test

...For Linux, I only see one write at startup, none on runtime resume. I did not test system sleep/resume. (disable/enable is arguably a bit different from system s/r, you may want to do additional testing here.) Full log for WIndows 10 and Linux: https://github.com/Lekensteyn/acpi-stuff/blob/master/d3test/XPS9560/slogs/win10-rp-enable-disable.txt#L3418 https://github.com/Lekensteyn/acpi-stuff/blob/master/d3test/XPS9560/slogs/linux-rp.txt lspci for the emulated bridge: https://github.com/Lekensteyn/acpi-stuff/blob/master/d3test/XPS9560/lspci-vm-vfio.txt#L359 The rp_*_config trace points are non-stand...

On Fri, Aug 24, 2018 at 11:42 PM, Peter Wu <peter at lekensteyn.nl> wrote: > Are these systems also affected through runtime power management? For > example: > > modprobe nouveau # should enable runtime PM > sleep 6 # wait for runtime suspend to kick in > lspci -s1: # runtime resume by reading PCI config space > > On laptops from

On Tue, Aug 28, 2018 at 5:57 PM, Peter Wu <peter at lekensteyn.nl> wrote: > Just to be sure, after "sleep", do both devices report "suspended" in > /sys/bus/pci/devices/0000:00:1c.0/power/runtime_status > /sys/bus/pci/devices/0000:01:00.0/power/runtime_status > > and was this reproduced with a recent mainline kernel with no special > cmdline options? The

On Tue, Aug 28, 2018 at 5:57 PM, Peter Wu <peter at lekensteyn.nl> wrote: > Only non-bridge devices can be passed to a guest, but perhaps logging > access to the emulated bridge is already sufficient. The Prefetchable > Base Upper 32 Bits register is at offset 0x28. > > In a trace where the Nvidia device is disabled/enabled via Device > Manager, I see writes on the enable

...ot; method that emulates at least the "Optimus" interface for GUID a486d8f8-0bda-471b-a72b-6042a6b5bee0. You probably lost interest here, but if you want to continue anyway this is what allowed me to install the driver on the XPS 9560: https://github.com/Lekensteyn/acpi-stuff/blob/master/d3test/fakedev.asl If you adapt if for your environment, note: - I have only tested this with the q35 machine type with an additional ioh3420 root port. See the XPS956/boot-vm script. - The \_SB.PCI0.SE0 device should match the root port: cat /sys/bus/pci/devices/0000:00:1c.0/firmware_node/path (th...

...ike disabling MSI/interrupts before suspend, setting the Enable Clock Power Management bit in PCI Express Link Control and more, but applying these changes were so far not really successful. Some supporting files for that investigation are here: https://github.com/Lekensteyn/acpi-stuff/tree/master/d3test Karol noticed that by not setting the State in PMCSR to D3 for the Nvidia GPU during runtime suspend, then the device would successfully resume. However, based on traces using VFIO-PCI, it does not seem a good solution as Windows does not behave like that. -- Kind regards, Peter Wu https://lekens...

Hi, We are facing a suspend/resume problem with many different Asus laptop models (30+ products) with Intel chipsets (multiple generations) and nvidia GPUs (several different ones). Reproducers include: 1. Boot 2. Suspend/resume 3. Load nouveau driver 4. Start X 5. Observe slow X startup and many many errors in logs (primarily nouveau fifo faults) or 1. Boot 2. Load nouveau driver 3. Start X