From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Lukas Wunner <lukas@wunner.de>,
Bjorn Helgaas <helgaas@kernel.org>,
Peter Wu <peter@lekensteyn.nl>,
linux-pci@vger.kernel.org, linux-pm@vger.kernel.org,
Valdis Kletnieks <valdis.kletnieks@vt.edu>,
Dave Airlie <airlied@gmail.com>,
Andreas Noever <andreas.noever@gmail.com>
Subject: Re: [PATCH] PCI: Wait for 50ms after bridge is powered up
Date: Mon, 30 May 2016 17:44:45 +0300 [thread overview]
Message-ID: <20160530144445.GC1743@lahna.fi.intel.com> (raw)
In-Reply-To: <20160530093326.GH1789@lahna.fi.intel.com>
On Mon, May 30, 2016 at 12:33:26PM +0300, Mika Westerberg wrote:
> I also learned that both of these can be shortened with following
> mechanisms:
>
> - PCIe readines notifications (6.23 in PCIe spec 3.1a)
> - ACPI _DSM method returning readines durations from (4.6.9 in PCI
> firmware spec 3.2).
BTW, looks like the latter is already implemented in
pci_acpi_optimize_delay().
next prev parent reply other threads:[~2016-05-30 14:44 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-18 17:14 Rescanning is broken with runtime PM for PCIe ports Peter Wu
2016-05-19 7:42 ` Mika Westerberg
2016-05-19 11:36 ` Mika Westerberg
2016-05-20 8:45 ` Peter Wu
2016-05-23 8:20 ` [PATCH] PCI: Power on bridges before scanning new devices Mika Westerberg
2016-05-23 20:00 ` Bjorn Helgaas
2016-05-23 21:50 ` Bjorn Helgaas
2016-05-24 12:23 ` Bjorn Helgaas
2016-05-24 12:52 ` Lukas Wunner
2016-05-24 12:53 ` Mika Westerberg
2016-05-24 14:27 ` Peter Wu
2016-05-24 15:06 ` Lukas Wunner
2016-05-24 16:38 ` Bjorn Helgaas
2016-05-24 23:46 ` Peter Wu
2016-05-24 16:28 ` Bjorn Helgaas
2016-05-25 15:04 ` [PATCH] PCI: Wait for 50ms after bridge is powered up Mika Westerberg
2016-05-25 20:44 ` Rafael J. Wysocki
2016-05-26 10:10 ` Lukas Wunner
2016-05-26 10:25 ` Mika Westerberg
2016-05-26 10:45 ` Lukas Wunner
2016-05-26 11:03 ` Mika Westerberg
2016-05-28 12:29 ` Rafael J. Wysocki
2016-05-30 9:33 ` Mika Westerberg
2016-05-30 14:44 ` Mika Westerberg [this message]
2016-05-30 15:19 ` Andreas Noever
2016-05-31 8:33 ` Mika Westerberg
2016-05-31 8:58 ` Mika Westerberg
2016-05-31 10:40 ` Lukas Wunner
2016-05-31 10:47 ` Mika Westerberg
2016-05-31 11:07 ` Lukas Wunner
2016-06-01 9:11 ` Mika Westerberg
2016-06-01 11:42 ` Lukas Wunner
2016-05-24 21:13 ` [PATCH] PCI: Power on bridges before scanning new devices Mika Westerberg
2016-05-25 0:03 ` Rafael J. Wysocki
2016-05-25 13:19 ` Mika Westerberg
2016-05-25 20:45 ` Rafael J. Wysocki
2016-05-26 8:16 ` Mika Westerberg
2016-05-28 12:21 ` Rafael J. Wysocki
2016-05-30 9:35 ` Mika Westerberg
2016-05-25 12:16 ` Lukas Wunner
2016-05-25 13:25 ` Mika Westerberg
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