From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Mika Westerberg <mika.westerberg@intel.com>
Cc: Karol Herbst <kherbst@redhat.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Bjorn Helgaas <helgaas@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Lyude Paul <lyude@redhat.com>,
"Rafael J . Wysocki" <rjw@rjwysocki.net>,
Linux PCI <linux-pci@vger.kernel.org>,
Linux PM <linux-pm@vger.kernel.org>,
dri-devel <dri-devel@lists.freedesktop.org>,
nouveau <nouveau@lists.freedesktop.org>,
Dave Airlie <airlied@gmail.com>,
Mario Limonciello <Mario.Limonciello@dell.com>
Subject: Re: [PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
Date: Thu, 21 Nov 2019 12:03:52 +0100 [thread overview]
Message-ID: <CAJZ5v0hAgz4Fu=83AJE2PYUsi+Jk=Lrr4MNp5ySA9yY=3wr5rg@mail.gmail.com> (raw)
In-Reply-To: <20191121101423.GQ11621@lahna.fi.intel.com>
On Thu, Nov 21, 2019 at 11:14 AM Mika Westerberg
<mika.westerberg@intel.com> wrote:
>
> On Wed, Nov 20, 2019 at 10:36:31PM +0100, Karol Herbst wrote:
> > with the branch and patch applied:
> > https://gist.githubusercontent.com/karolherbst/03c4c8141b0fa292d781badfa186479e/raw/5c62640afbc57d6e69ea924c338bd2836e770d02/gistfile1.txt
>
> Thanks for testing. Too bad it did not help :( I suppose there is no
> change if you increase the delay to say 1s?
Well, look at the original patch in this thread.
What it does is to prevent the device (GPU in this particular case)
from going into a PCI low-power state before invoking AML to power it
down (the AML is still invoked after this patch AFAICS), so why would
that have anything to do with the delays?
The only reason would be the AML running too early, but that doesn't
seem likely. IMO more likely is that the AML does something which
cannot be done to a device in a PCI low-power state.
WARNING: multiple messages have this Message-ID (diff)
From: "Rafael J. Wysocki" <rafael@kernel.org>
To: Mika Westerberg <mika.westerberg@intel.com>
Cc: Karol Herbst <kherbst@redhat.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Linux PCI <linux-pci@vger.kernel.org>,
Linux PM <linux-pm@vger.kernel.org>,
"Rafael J . Wysocki" <rjw@rjwysocki.net>,
LKML <linux-kernel@vger.kernel.org>,
dri-devel <dri-devel@lists.freedesktop.org>,
Mario Limonciello <Mario.Limonciello@dell.com>,
Bjorn Helgaas <helgaas@kernel.org>,
nouveau <nouveau@lists.freedesktop.org>
Subject: Re: [PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges
Date: Thu, 21 Nov 2019 12:03:52 +0100 [thread overview]
Message-ID: <CAJZ5v0hAgz4Fu=83AJE2PYUsi+Jk=Lrr4MNp5ySA9yY=3wr5rg@mail.gmail.com> (raw)
In-Reply-To: <20191121101423.GQ11621@lahna.fi.intel.com>
On Thu, Nov 21, 2019 at 11:14 AM Mika Westerberg
<mika.westerberg@intel.com> wrote:
>
> On Wed, Nov 20, 2019 at 10:36:31PM +0100, Karol Herbst wrote:
> > with the branch and patch applied:
> > https://gist.githubusercontent.com/karolherbst/03c4c8141b0fa292d781badfa186479e/raw/5c62640afbc57d6e69ea924c338bd2836e770d02/gistfile1.txt
>
> Thanks for testing. Too bad it did not help :( I suppose there is no
> change if you increase the delay to say 1s?
Well, look at the original patch in this thread.
What it does is to prevent the device (GPU in this particular case)
from going into a PCI low-power state before invoking AML to power it
down (the AML is still invoked after this patch AFAICS), so why would
that have anything to do with the delays?
The only reason would be the AML running too early, but that doesn't
seem likely. IMO more likely is that the AML does something which
cannot be done to a device in a PCI low-power state.
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next prev parent reply other threads:[~2019-11-21 11:04 UTC|newest]
Thread overview: 150+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-17 12:19 [PATCH v4] pci: prevent putting nvidia GPUs into lower device states on certain intel bridges Karol Herbst
2019-11-14 19:17 ` Karol Herbst
2019-11-14 19:17 ` Karol Herbst
2019-11-19 20:06 ` Dave Airlie
2019-11-19 20:06 ` Dave Airlie
2019-11-19 20:06 ` Dave Airlie
2019-11-19 21:49 ` Bjorn Helgaas
2019-11-19 21:49 ` Bjorn Helgaas
2019-11-19 22:26 ` Karol Herbst
2019-11-19 22:26 ` Karol Herbst
2019-11-19 22:26 ` Karol Herbst
2019-11-19 22:57 ` Bjorn Helgaas
2019-11-19 22:57 ` Bjorn Helgaas
2019-11-20 10:18 ` Mika Westerberg
2019-11-20 10:18 ` Mika Westerberg
2019-11-20 10:52 ` Rafael J. Wysocki
2019-11-20 10:52 ` Rafael J. Wysocki
2019-11-20 10:52 ` Rafael J. Wysocki
2019-11-20 11:22 ` Mika Westerberg
2019-11-20 11:22 ` Mika Westerberg
2019-11-20 11:48 ` Rafael J. Wysocki
2019-11-20 11:48 ` Rafael J. Wysocki
2019-11-20 11:51 ` Karol Herbst
2019-11-20 11:51 ` Karol Herbst
2019-11-20 12:06 ` Rafael J. Wysocki
2019-11-20 12:06 ` Rafael J. Wysocki
2019-11-20 12:06 ` Rafael J. Wysocki
2019-11-20 12:09 ` Karol Herbst
2019-11-20 12:09 ` Karol Herbst
2019-11-20 12:09 ` Karol Herbst
2019-11-20 12:14 ` Rafael J. Wysocki
2019-11-20 12:14 ` Rafael J. Wysocki
2019-11-20 12:19 ` Karol Herbst
2019-11-20 12:19 ` Karol Herbst
2019-11-20 12:11 ` Rafael J. Wysocki
2019-11-20 12:11 ` Rafael J. Wysocki
2019-11-20 11:51 ` Mika Westerberg
2019-11-20 11:51 ` Mika Westerberg
2019-11-20 11:54 ` Karol Herbst
2019-11-20 11:54 ` Karol Herbst
2019-11-20 11:54 ` Karol Herbst
2019-11-20 11:58 ` Karol Herbst
2019-11-20 11:58 ` Karol Herbst
2019-11-20 11:58 ` Karol Herbst
2019-11-20 12:09 ` Mika Westerberg
2019-11-20 12:09 ` Mika Westerberg
2019-11-20 12:11 ` Karol Herbst
2019-11-20 12:11 ` Karol Herbst
2019-11-20 12:11 ` Karol Herbst
2019-11-20 15:15 ` Mika Westerberg
2019-11-20 15:15 ` Mika Westerberg
2019-11-20 15:37 ` Karol Herbst
2019-11-20 15:37 ` Karol Herbst
2019-11-20 15:53 ` Mika Westerberg
2019-11-20 15:53 ` Mika Westerberg
2019-11-20 16:23 ` Mika Westerberg
2019-11-20 16:23 ` Mika Westerberg
2019-11-20 21:36 ` Karol Herbst
2019-11-20 21:36 ` Karol Herbst
2019-11-20 21:36 ` Karol Herbst
2019-11-21 10:14 ` Mika Westerberg
2019-11-21 10:14 ` Mika Westerberg
2019-11-21 11:03 ` Rafael J. Wysocki [this message]
2019-11-21 11:03 ` Rafael J. Wysocki
2019-11-21 11:08 ` Rafael J. Wysocki
2019-11-21 11:08 ` Rafael J. Wysocki
2019-11-21 11:08 ` Rafael J. Wysocki
2019-11-21 11:15 ` Rafael J. Wysocki
2019-11-21 11:15 ` Rafael J. Wysocki
2019-11-21 11:17 ` Mika Westerberg
2019-11-21 11:17 ` Mika Westerberg
2019-11-21 11:31 ` Rafael J. Wysocki
2019-11-21 11:31 ` Rafael J. Wysocki
2019-11-20 21:37 ` Rafael J. Wysocki
2019-11-20 21:37 ` Rafael J. Wysocki
2019-11-20 21:40 ` Karol Herbst
2019-11-20 21:40 ` Karol Herbst
2019-11-20 22:29 ` Rafael J. Wysocki
2019-11-20 22:29 ` Rafael J. Wysocki
2019-11-21 11:28 ` Mika Westerberg
2019-11-21 11:28 ` Mika Westerberg
2019-11-21 11:34 ` Rafael J. Wysocki
2019-11-21 11:34 ` Rafael J. Wysocki
2019-11-21 11:34 ` Rafael J. Wysocki
2019-11-21 11:46 ` Mika Westerberg
2019-11-21 11:46 ` Mika Westerberg
2019-11-21 12:52 ` Mika Westerberg
2019-11-21 12:52 ` Mika Westerberg
2019-11-21 12:56 ` Karol Herbst
2019-11-21 12:56 ` Karol Herbst
2019-11-21 15:43 ` Rafael J. Wysocki
2019-11-21 15:43 ` Rafael J. Wysocki
2019-11-21 15:43 ` Rafael J. Wysocki
2019-11-21 19:49 ` Mika Westerberg
2019-11-21 19:49 ` Mika Westerberg
2019-11-21 22:39 ` Rafael J. Wysocki
2019-11-21 22:39 ` Rafael J. Wysocki
2019-11-21 22:39 ` Rafael J. Wysocki
2019-11-21 22:50 ` Karol Herbst
2019-11-21 22:50 ` Karol Herbst
2019-11-22 0:13 ` Karol Herbst
2019-11-22 0:13 ` Karol Herbst
2019-11-22 9:07 ` Rafael J. Wysocki
2019-11-22 9:07 ` Rafael J. Wysocki
2019-11-22 11:30 ` Karol Herbst
2019-11-22 11:30 ` Karol Herbst
2019-11-22 11:30 ` Karol Herbst
2019-11-22 10:36 ` Mika Westerberg
2019-11-22 10:36 ` Mika Westerberg
2019-11-22 11:30 ` Rafael J. Wysocki
2019-11-22 11:30 ` Rafael J. Wysocki
2019-11-22 11:34 ` Karol Herbst
2019-11-22 11:34 ` Karol Herbst
2019-11-22 11:34 ` Karol Herbst
2019-11-22 11:54 ` Rafael J. Wysocki
2019-11-22 11:54 ` Rafael J. Wysocki
2019-11-22 11:52 ` Mika Westerberg
2019-11-22 11:52 ` Mika Westerberg
2019-11-22 12:15 ` Rafael J. Wysocki
2019-11-22 12:15 ` Rafael J. Wysocki
2019-11-21 12:52 ` Karol Herbst
2019-11-21 12:52 ` Karol Herbst
2019-11-21 15:47 ` Rafael J. Wysocki
2019-11-21 15:47 ` Rafael J. Wysocki
2019-11-21 16:06 ` Karol Herbst
2019-11-21 16:06 ` Karol Herbst
2019-11-21 16:39 ` Rafael J. Wysocki
2019-11-21 16:39 ` Rafael J. Wysocki
2019-11-26 23:10 ` Lyude Paul
2019-11-26 23:10 ` Lyude Paul
2019-11-27 11:48 ` Mika Westerberg
2019-11-27 11:48 ` Mika Westerberg
2019-11-27 11:51 ` Karol Herbst
2019-11-27 11:51 ` Karol Herbst
2019-11-27 19:51 ` Lyude Paul
2019-11-27 19:51 ` Lyude Paul
2019-12-09 11:17 ` Karol Herbst
2019-12-09 11:17 ` Karol Herbst
2019-12-09 11:38 ` Rafael J. Wysocki
2019-12-09 11:38 ` Rafael J. Wysocki
2019-12-09 11:38 ` Rafael J. Wysocki
2019-12-09 12:24 ` Karol Herbst
2019-12-09 12:24 ` Karol Herbst
2019-12-10 19:58 ` Dave Airlie
2019-12-10 19:58 ` Dave Airlie
2019-12-10 20:49 ` Karol Herbst
2019-12-10 20:49 ` Karol Herbst
2020-01-13 15:31 ` Karol Herbst
2020-01-13 15:31 ` Karol Herbst
2020-01-13 15:31 ` Karol Herbst
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